Browse Topic: Fuel economy

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Mathematical Modeling and Genetic Algorithm-Based Energy Management in Hydrogen PEM Fuel Cell Electric Vehicles2026-26-0257To be published on 01/16/2026
Hydrogen fuel cell electric vehicles (FCEVs) present a promising solution to environmental challenges such as emissions, global warming, and fossil fuel depletion. By utilizing hydrogen as a clean energy source, FCEVs achieve zero tailpipe emissions while maintaining high efficiency and extended driving ranges. Their development focuses on optimizing fuel cell architecture, hydrogen storage systems, and advanced power management strategies to enhance energy conversion under varying operational conditions. This requires precise design, simulation, analysis, and system integration to improve performance, durability, and sustainability. This study develops a high-fidelity mathematical model of a hydrogen Proton Exchange Membrane (PEM) fuel cell vehicle and implements advanced Energy Management Strategies (EMS). Using the forward approach method, the model accounts for the physical constraints of the powerplant. Detailed fuel cell system modeling accurately represents voltage loss
Mulik, Rakesh Vilasrao, E, Porpatham, Senthilkumar, Arumugam
A Comparative Analysis of Passenger Car Fuel Economy between Laboratory and Real Driving Testing2026-26-0225To be published on 01/16/2026
In India, fuel economy is one of the most critical factors influencing a customer's decision to own a passenger car. Beyond consumer preference, fuel consumption also plays a significant role in the nation's energy security. Inline of this, the government promotes fuel-efficient vehicles and technologies through various regulations, policies, and mandates. Vehicle manufacturers, in response, focus on designing vehicles that align with both customer expectations and regulatory requirements. Fuel economy certification is typically based on standardized laboratory tests that simulate controlled environmental conditions, driving cycle (MIDC), vehicle load, and operation of electrical and electronic systems. However, actual on-road driving conditions by end user vary significantly due to factors such as traffic conditions, ambient temperature, air conditioning use, driving behaviour and variable loading of the vehicle. With implementation of Bharat Stage VI, Real Driving Emission (RDE
SINGH, ABHAY PRATAP, Bathina, Revanth Kumar, Tijare, Shantanu
Driving behavior modelling with Graph Attention Networks using spatial data2026-26-0661To be published on 01/16/2026
In automotive engineering, understanding driving behavior is crucial for decision on specifications of future system designs. This study introduces an innovative approach to modeling driving behavior using Graph Attention Networks (GATs). By leveraging spatial relationships encoded in H3 indices, we construct a graph-based model that captures dependencies between various vehicle operational parameters and their operational regions using H3 indices. The model utilizes CAN signal features such as speed, fuel efficiency, engine temperature, and categorical identifiers of vehicle type and sub-type. Additionally, regional indices are incorporated to enrich the contextual information. The GAT model processes these heterogeneous features, learning to identify patterns indicative of driving behavior. This approach offers several significant advantages. Firstly, it enhances the accuracy of driving behavior modeling by effectively capturing the complex spatial and operational dependencies
Salunke, Omkar
Auto Braking system for preventing commercial vehicle overloading.2026-26-0032To be published on 01/16/2026
Overloading in commercial vehicles is a widespread issue that creates serious safety, operational, and regulatory concerns. Excessive loads can result in mechanical breakdowns, diminished braking performance, accelerated tire wear, and a higher likelihood of accidents, posing risks to drivers and other road users. Moreover, overloading accelerates road deterioration and increases infrastructure maintenance costs. To tackle this pressing problem, this study introduces a novel integrated system that merges advanced load-sensing technology with the vehicle's braking system. The system utilizes high-precision sensors placed at key locations, such as the suspension or axle, to monitor the vehicle's load in real time. These sensors send data to a central control unit, which triggers the braking mechanism if the load surpasses a predetermined safety limit. Importantly, the braking system activates only when the vehicle is stationary, ensuring it does not disrupt normal driving operations. The
RAJ, AMRITESH, Pujari, Sachin, Londhe, Mahesh, Shirke, Sumeet, Shinde, Akshay
Hybrid Topology Selection & Optimization of a Compact SUV to Meet Future CO2 Norms - an Indian Case Study2026-26-0077To be published on 01/16/2026
Rising environmental concerns and stringent emissions norms are pushing automakers to adopt more sustainable technologies. There is no single perfect solution for any market and there are solutions ranging from biofuels, green hydrogen to electric vehicles. For Indian market, especially in the passenger car segment, hybrid vehicles are favoured when it comes to manufacturers as well as with consumer because of multiple reasons such as reliability, performance, fuel efficiency and lower long-term cost of ownership. For automakers planning to upgrade their fleets in the context of upcoming CAFE III (91.7 g CO2 / km) & CAFE IV (70 g CO2 / km) norms, hybridization emerges as the next natural step for passenger cars. Lately, various state governments have also promoted hybrid vehicle sales by offering certain targeted tax breaks which were previously reserved for EVs exclusively. Current study focuses on various parallel hybrid topologies for an Indian compact SUV, which is the highest
Emran, Ashraf, Sandhu, Rouble, Keizer, Ruben, Warkhede, Pawan
Optimization of the Rodip CED Process Suitability through Strategic Fixture System for Enhanced Hood Gap and Flushness Control in Automotive Manufacturing2026-26-0486To be published on 01/16/2026
The Ro-dip Cathodic Electrodeposition (CED) process is latest technology used by Automotive Manufacturers for higher quality corrosion protection in new generation Automobiles. This process involves multiple 360-degree rotation of automotive body in white (BIW) which exert higher hydrostatic forces on large surface panels like Hood. For maintaining consistent gaps & flushness control at vehicle level, it is important to safeguard the dimensional stability of light weight (crash performance sensitive) steel Hood panel while undergoing through this CED process. This study investigates the enhancement of hood panel alignment through strategic optimization of support rod placement and quantity within the Ro-dip CED system. By conducting experimental trials and computational simulations, the research identifies critical deformation points and evaluates the impact of varying support rod configurations on dimensional stability. The outcome results demonstrate that positioning support rods at
Tile, Vikrant, Unadkat, Siddharth, ASKARI, HASAN, Jadhav, Devidas
Electroluminescent Coating Systems for Heavy-Duty Trucks: Advancing Safety and Sustainability through Smart Surface Technology2026-26-0275To be published on 01/16/2026
As the transportation industry pivots towards safer and more sustainable mobility solutions, the role of advanced surface technologies is becoming increasingly critical. This paper presents a novel application of electroluminescent (EL) coating systems in heavy-duty trucks, exploring to enhance safety and environmental impact through lightweight, energy-efficient lighting integration. EL coatings, capable of emitting light uniformly across painted surfaces when electrically activated, offer a transformative alternative to conventional lighting systems and reflective materials. In the context of heavy-duty trucks, these systems can significantly improve visibility under low-light and adverse weather conditions, thereby reducing the risk of road accidents. Furthermore, illumination achieved without bulky fixtures and without interface gaps contributes to aerodynamic efficiency, fuel economy and reducing carbon emissions. use of this coating system, can optimize tooled up plastic part and
Harel, Samarth Dattatraya, Borse, Manoj
A High-Fidelity Transient Fluid-Structure-Interaction Methodology for Evaluation of Rear Bumper Flutter of a Vehicle2026-26-0410To be published on 01/16/2026
The need for fuel efficient and pedestrian safe cars leads to the use of thinner and lighter car exteriors. Interaction of these exterior car components at high speed with an aerodynamic load can lead to undesirable aero-elastic vibration and flutter. Early identification and mitigation of such vibration can bring significant cost and time benefit, by reducing dependence on prototype testing and recalibration of prototype tooling at later stages. The present work demonstrates a transient Fluid-Structure-Interaction based numerical methodology for estimation of aerodynamic-induced flutter of the rear bumper of an SUV. The proposed method performs coupled-high fidelity transient full vehicle aerodynamic Finite Volume based and dynamic rear bumper structural Finite Element based simulations required for flutter estimation. The method has been put through a two-step validation against experimental wind tunnel test data of a prototype car with modified bumper for the specific test-case. The
CHOUDHURY, SATYAJIT, Yenugu, Srinivasa, Walia, Rajat, Zander, Daniel, Gullapalli, Atchyut, BALAN, ARUN, Astik, Pritesh
Exploring the Influence of Wheel Rim Width on Tire Performance through rig testing and Vehicle-level Evaluation: A Comprehensive study2026-26-0603To be published on 01/16/2026
With increasing challenges for optimizing vehicle ride and handling performance along with efficiency, the synergy between major systems such as suspension, chassis, brakes & tires has been investigated in the past. In this regard, the interaction between wheel rim width and tire performance characteristics has become a topic of interest. Extensive research is being conducted in the automotive industry to understand their key interaction dynamics and make appropriate design selections. This study aims to provide a comprehensive analysis of how variations in wheel rim width affect key tire performance parameters such as lateral force characteristics ,damping property, tire footprint, and pinch cut resistance. Also, the subsequent influence on vehicle-level performance parameters such as braking, ride & handling, steering, and durability is captured. Through rig level testing and full-vehicle evaluation data, several key observations have emerged. Firstly, it was observed that narrower
Singh, Ram Krishnan, Paua, Ketan, Sundaramoorthy, Ragasruoban, LENKA., VISWESWARA, ahire, Manoj, Adiga, Ganesh N
Structural analysis and Design optimization of Cylinder Head of Cummins Light duty Engine for Medium Wheelbase (MWB) pick-up truck2026-26-0495To be published on 01/16/2026
This paper presents the design, structural analysis, and risk assessment done by Cummins to evaluate the structural integrity of Light Duty engine cylinder head for a Medium Wheelbase (MWB) pick-up truck. Initially, Cummins used F2.5L (4-cylinder) engine that has 154hp, but rising market demands for more power, fuel efficiency, lower cost and weight, and future emission compliance led to customer requirements for 177hp (Drive New F2.5L, 15% uprate) and 197hp+ (Drive New F3.0L, 22% uprate) from the same base engine. The increase in power requirement possesses challenges on critical components, especially cylinder heads in terms of thermal and structural limits. This paper addresses the challenges and risks in current cylinder head design driven by new power demands, specifically reduced fatigue margins in the water jacket area and increased temperatures on the combustion face under high thermomechanical loads. It explores the design modifications made to the cylinder head design to
Pathak, Arun Jyoti, Adiverekar, Vaidehi, Singh, Rahul, Biyani, Mayur
"Parametric Evaluation of Rolling Resistance in Bias & Radial Tyres and influence of key operational parameters under varying conditions."2026-26-0606To be published on 01/16/2026
Tyre rolling resistance is a fundamental parameter in automotive engineering, directly impacting vehicle fuel efficiency and overall performance. The Rolling Resistance Coefficient (CRR) is influenced by tyre construction, material properties, and operational conditions such as inflation pressure, vehicle speed, load, ambient temperature, and road surface roughness. This study investigates the influence of critical parameters—including test speed, inflation pressure, load, temperature, and slip angle—on the rolling resistance of tyres of various sizes. While previous research has predominantly focused on radial tyres, this paper extends the analysis to include bias-ply tyres, which remain widely used in ASEAN countries, including India. The findings aim to offer valuable insights for policymakers and researchers by examining the behaviour of bias tyres under real-world conditions. Special focus is given to the influence of slip and camber angles, with experiments conducted on passenger
Joshi, Amol, Khairatkar, Vyankatesh, Belavadi Venkataramaiah, Shamsundara
NVH Refinement on the Agriculture Tractor using Coupled Test and Simulation Approach2026-26-0316To be published on 01/16/2026
The Indian farmers choice of agriculture tractor brand is driven by the ease of operation and fuel efficiency. However, the customer preference for operator comfort is driving many tractor OEMs for improvement in noise and vibration at the operator location. Also, the compliance to CMVR regulation for noise at operator ear location and vibration at driver touch point location are mandatory for all the tractors in India. NVH refinement development of the tractor plays a critical role in achieving the regulated noise level and improved tactile vibration In presented work, Noise Source Identification (NSI) is carried out to identify and rank airborne and structure borne noise sources at tractor level through elimination method followed by engine level testing in hemi anechoic chamber to identify the major noise radiating components by using noise and vibration measurement, sound intensity mapping tools. The outcome of NSI has revealed silencer, timing gear cover and oil sump to be highest
Gaikwad, Atul Annasaheb, Bankar, Harshal, Yadav, Prasad S, Harishchandra Walke, Nagesh
Multibody Dynamic Analysis of Belt-Type CVT Systems in Two-Wheelers: A Study on Slip, Misalignment, and Transmission Efficiency2026-26-0079To be published on 01/16/2026
More efficient drivetrain technologies are in greater demand in the two-wheeler market as a result of the introduction of BS6.2 emission standards. In order to satisfy these performance and regulatory requirements, Continuously Variable Transmission (CVT) systems—which are renowned for their stepless gear shifting and increased fuel efficiency—are being given more and more consideration. However, because CVT is nonlinear and multibody dynamic, accurately predicting its behavior is still a difficult task. With an emphasis on variables like belt slip, pulley misalignment, and transmission efficiency, this study provides a thorough multibody dynamic analysis of a belt-type CVT system used in two-wheelers. High-fidelity analysis of the belt-pulley interaction under various load and speed conditions is now possible thanks to the development of a novel modeling methodology using advanced multibody dynamics simulation software – Virtual Dynamics. The method makes early design validation
Mane, Prashant, Shah, Swapnil, Voncken PhD, Antonius, Pinjari, Abrar, Emran, Ashraf, Mane PhD, Shrikala
Study of Drive Trace Indices and their correlation with CO2 in Chassis Dynamometer testing2026-26-0517To be published on 01/16/2026
With introduction of CAFÉ norms in India, the manufacturers of all M1 Category vehicles (not exceeding 3,500kg GVW) must ascertain that they comply with Annual Corporate average CO2 target as defined in regulation. Moreover, this target will become stricter in different stages in upcoming years. Hence CO2 emissions are becoming one of the major focus parameters during vehicle development. There are various factors that can impact CO2 emissions during measurement in test cycle such as MIDC/WLTC. One such major factor is driving variations. Although speed and time tolerances are provided during the test (as part of AIS 137/AIS 175) limit the variation, even within these tolerances, drive-related effects can be significant contributors to test results variability. Monitoring and control of such variations is important to understand the true fuel economy potential of the vehicle. Drive Trace indices are standardized metrics that can be used to evaluate the driving variations. The aim of
ER, Shivram, Rawat, Vijaypal, Khandelwal, Vineet, Kumar, Arun, Malhotra, Jitendra
Representative Drive cycle velocity profiles Prediction using ML Algorithms for Energy Efficiency2026-26-0638To be published on 01/16/2026
Maximizing vehicle energy efficiency and performance is a high priority for the automotive industry as customer expectations rise. Engineers constantly face the challenge of balancing the conflicting goals of achieving superior performance and maximizing energy efficiency, all while meeting increasingly tight development timelines. Leveraging digital methods can potentially enable a considerable reduction in development lead times. Driving cycles act as standardized measurement procedures for certifying a vehicle's fuel efficiency and driving range. Representative velocity profiles condense numerous real-life driving cycles to enable quicker energy analysis and driver feedback evaluation. This paper introduces a novel methodology for generating synthetic drive cycles, such as average velocity cycles and ideal consumption velocity cycles, based on real-life driving scenarios. In this study, the importance of creating representative drive cycles to enhance vehicle performance and energy
Kanakannavar, Rohit, Kelkar, Kshitij, Sadalge, Anand
Feasibility Study of Cylinder Deactivation (CDA) Technology for an Off-Highway Tractor Engine2026-26-0074To be published on 01/16/2026
Cylinder Deactivation Technology is explored as an effective mechanism for enhancing the fuel economy and reducing emissions in internal combustion engines. The current exercise focuses upon the feasibility of Cylinder Deactivation Technology on a 3-cylinder, 3.3-liter naturally aspirated water-cooled diesel engine from the off-highway tractor application. A meticulous 1D thermodynamic simulation with individual cylinders deactivated one by one, proved that deactivating the second cylinder yielded the most favorable fuel economy, emissions and engine balancing, particularly at the loads lower than 55% and engine speeds higher than 1600 rpm. Upon deactivating the cylinders at Top Dead Centre (TDC) and Bottom Dead Centre (BDC), it was concluded that the most effective deactivation point occurred at TDC, where the minimum air mass is trapped inside the cylinder. This resulted in a reduction of pumping losses by maximum 29% and an increase in brake thermal efficiency by maximum 4%, as
Choudhary, Vasu, SAINI, SANJAY, Mukherjee, Nalini, Nene, Devendra
Exploring advanced additive chemistry for achieving fuel economy in passenger car motor oils2026-26-0529To be published on 01/16/2026
Original Equipment Manufacturers (OEM’s) are focusing towards fuel economy of passenger cars to meet the next generation emission norms. Few techniques such as downsizing of engines, raising lubricant temperature, reducing combustion time and regulating the start-stop system of engines are various efforts being considered by Automobile OEMs to attain fuel efficiency along with next generation emission norms. On the other hand, lubricants used for such engines are also to be modified accordingly to meet more fuel efficiency. Lowering viscosity along with addition of friction modifiers for normalizing frictional losses is widely practiced as the most economical techniques. To achieve this lubricant formulator and additive manufacturers have moved towards modern base oils and advanced additive technologies. This study is done to understand key parameters which reduce friction and increase fuel economy using same viscosity grade oils. In the current study, we have formulated different low
Vabbina, Dr Shiv Kumar, Katta, Dr Lakshmi, Joshi, Dr Ratnadeep, Chaudhary, Dr Rameshwar, Seth, Dr Sarita, Bhardwaj, Dr Anil, Arora, Dr Ajay Kumar
Experimental approach to investigate VVT malfunction in SI gasoline engine.2026-26-0558To be published on 01/16/2026
Variable Valve Timing (VVT) is an advanced technology implemented in internal combustion engines to optimize the opening and closing timing of the intake and exhaust valves. Its primary objective is to improve engine performance, fuel efficiency, and reduce emissions by dynamically adjusting the valve timing based on the engine's operating conditions i.e. engine speed and load conditions. However, the VVT system may experience various operational issues caused due to low engine oil levels, contaminated engine oil, solenoid malfunctions, and camshaft phaser issues, which can adversely affect engine performance, fuel efficiency, and emissions. This paper provides an in-depth analysis of VVT malfunctions, specifically attributed to the resonance effect of VVT components at various engine RPMs & oil temperature. The study also explains the phenomenon causing VVT sluggishness during advance phase due to resonance between oil pulsation & VVT components. Other factors contributing to VVT
Jha, Ankur, Sau, Sanjoy, Kumar, Bharat, Sandeep, Sandeep
E-drive System Selection Criterion for Hybrid Electric Heavy Commercial Vehicles Segments2026-26-0467To be published on 01/16/2026
Automotive industry expediting progress toward electrification since climate change driven by global warming represents a significant environmental challenge with far-reaching implications. While electric vehicles offer considerable potential for mitigating CO₂ emissions, their elevated upfront costs pose a notable challenge to large-scale market penetration. Hybrid electric vehicles can serve as an effective intermediary solution, bridging the gap between conventional internal combustion engine vehicles and fully electric vehicles, owing to their comparatively lower initial costs. Hybrid electric vehicle component selection is a complex process which has to fulfil multiple requirements fuel economy, performance, drivability, packaging, total cost of ownership of vehicle and comfort. In addition, Hybrid configuration selection also plays a vital role in cost of hybrid electric vehicle. Hence, it is a great challenge to select right powertrain configuration including architecture
Shendge, Raman, Jadhav, Vaibhav, Wani, Kalpesh, Warule, Prasad
Wheel Corner Module Energy Losses and Potential Improvements2026-26-0096To be published on 01/16/2026
With the inevitable shift of automotive industry towards E-mobility and mandatory fuel efficiency targets, there is a need to evaluate the energy losses in the vehicle & identify potential areas of improvement. Energy losses are calculated for different components in the corner module system of a passenger car. Contribution of losses (Resistances) from respective component are depicted using simple analytical models. Potential energy saving improvements were identified and analyzed basis emerging technologies in respective areas.
Raghatate, Kumar Shreyas, Vedartham, Raghavendra, Khanger, Rakesh, Bisht, Arun
Performance Evaluation and Optimization of Engine Brake System using Chassis Dynamometer2026-26-0511To be published on 01/16/2026
Engine braking is a deceleration technique that leverages the internal friction and pumping losses within the engine. By closing the throttle and potentially selecting a lower gear, the engine creates a retarding force that slows the vehicle. This practice contributes to better fuel economy, decreased brake system load, and improved vehicle handling in specific driving scenarios, such as steep declines or slippery road surfaces. To alleviate stress on their primary braking systems and prevent overheating, heavy vehicles frequently incorporate engine-based braking. While older trucks relied on simple exhaust brakes with a butterfly valve to restrict exhaust flow, these had limited impact. Hence contemporary heavy vehicles almost exclusively use more advanced engine braking technologies. Traditionally, our heavy-duty vehicles use Exhaust brake system to elevate the braking performance on hilly terrains. Hence an improved sample of Engine brake was developed for enhanced braking
M, Vipin Prakash, Rajappan, Dinesh Kumar, R, Suresh, N, Gopi Kannan
Effect of the Flow Forming Process on the Mechanical properties and Microstructure of GDC & LPDC cast aluminum alloy wheels.2026-26-0298To be published on 01/16/2026
Aluminum alloy wheels have become the preferred choice over steel wheels due to their lightweight nature, enhanced aesthetics, and contribution to improved fuel efficiency. Traditionally, these wheels are manufactured using methods such as Gravity Die Casting (GDC) [1] or Low Pressure Die Casting (LPDC) [2]. As vehicle dynamics engineers continue to increase tire sizes to optimize handling performance, the corresponding increase in wheel rim size and weight poses a challenge for maintaining low unsprung mass, which is critical for ride quality. To address this, weight reduction has become a priority. Flow forming [3,4], an advanced wheel production technique, offers a solution for reducing rim weight. This process employs high-pressure rollers to shape a metal disc into a wheel, specifically deforming the rim section while leaving the spoke and hub regions unaffected. By decreasing rim thickness, flow forming not only reduces overall wheel weight but also enhances strength and
Singh, Ram Krishnan, Medaboyina, HarshaVardhan, G K, Balaji, Gopalan, Vijaysankar, SUNDARAM, RAGHUPATHI, Paua, Ketan
For CNG and FFV fuel application robustness improvement of Exhaust Valve2026-26-0125To be published on 01/16/2026
Today, globally, automotive manufacturers are striving to meet the increasing demand for fuel economy, high performance, and silent engines. The fundamental approach to achieving these requirements is through designing low friction mechanisms, resulting in less wear and higher durability. The demand for CNG vehicles has surged exponentially in recent years, prompting increased government focus on alternative fuels such as CNG and hydrogen. These dry fuels lack lubricating properties, unlike conventional fuels like petrol, diesel, and biofuels, which are wet and liquid. Consequently, the operations and failures associated with these fuels differ. The materials and designs of engine parts, such as fuel lines, ECU, exhaust valves, and cylinder heads, vary depending on the fuel used. This study discusses the countermeasures adopted to address the high seat and guide wear in cylinder heads and valves. The investigation focuses on material, design, and manufacturing process improvements
Poonia, Sanjay, KUMAR, CHANDAN
Combustion noise quality improvement in a common rail Diesel Engine at Low idle for Agriculture Tractor2026-26-0329To be published on 01/16/2026
Vehicle level NVH performance plays major role in customer comfort criteria. Tractor low idle rpm Sound Quality can be one of the parameter which influences customer purchasing decision based on comfort criteria. Modern diesel engines with stringent emission norms together with fuel economy requirements pose challenges to noise control. Common rail engine technology has advantage of precise fuel delivery and combustion control which needs optimization to achieve the conflicting requirements of noise, emission and fuel efficiency. Engine noise at low idle condition is dominated by combustion noise which depends on rate of pressure rise inside the cylinder during combustion. The important parameters which influence cylinder pressure rise are fuel injection timing, pilot injection quantity and its separation, rail pressure and EGR valve position. The study is carried out to understand which combustion parameter is most influencing to achieve better sound quality of engine. Taguchi design
p, Priyadarshan, Chavan, Amit, A, Kannanswamy, Patil, Sandeep, Chaudhari, Vishal V
Design & analysis of Dual Mass flywheel during Engine startup condition in 3 Cylinder Gasoline application2026-26-0349To be published on 01/16/2026
Modern automotive powertrains are increasingly adopting engine downsizing and down speeding to meet stringent emission regulations and improving fuel efficiency However, these changes result in higher torsional vibrations and excitation amplitudes makes more challenge in NVH (Noise, Vibration, and Harshness) refinement. With growing customer expectations for premium driving experiences conventional clutch are no longer sufficient. To meet the NVH performance targets of the vehicle Dual Mass Flywheels (DMFs) are used In DMF due to lower stiffness and inertia separation there is a great advantage on torsional filtration in normal drive and idle condition. but the resonance frequency of the connected DMF is lower than the idle RPM. Engine startup is a key drawback with DMF equipped vehicles. The proper tuning of starter motor performance & DMF stiffness is required to cross the resonance zone faster otherwise it will lead to DMF to stay in the resonance zone for a longer time leading to
Jayachandran, Suresh kumar, Vijayaragavan, Thirupathi, M, DEVAMANALAN, Kanagaraj, Pothiraj, ahire, Manoj, Vellandi, Vikraman
The Creation of the 245/90R16 Tire Size for Commercial Vehicles 8.5T -12T in the 16-Inch Tube-Type Category – A Global First2026-26-0602To be published on 01/16/2026
This project introduced a brand-new tire size—245/90R16—for the first time globally in the 16-inch tube-type category, designed specifically for commercial vehicles with Vehicles 8.5T -12T gross vehicle weight (GVW). The main goal was to create a compact vehicle that can carry more payload, reduce overall weight, and improve fuel efficiency with use of rear single tyre instead of twin tyre in 8.5T. This helps customers lower their operating costs and improve vehicle performance, especially on narrow roads. The new tire supports high load capacities: up to 2300 kg for single tire use and 2180 kg for dual tire fitment. It enables a new type of vehicle to be developed—an 8.5-ton GVW vehicle with rear single tires—offering better payload capacity without increasing the size of the vehicle. By using this new tire, the kerb weight of the vehicle is reduced, which increases the payload and helps improve fuel economy. It also helps lower the cost of the vehicle by allowing the use of lighter
Pawar, Dhondiram Dnyandeo, Shaikh, Matin, ambekar, Prasad
Data-Driven Prediction of Global Automotive Trends: Forecasting Fuel Economy and CO₂ Emissions Using Machine Learning2026-26-0643To be published on 01/16/2026
In the pursuit of cleaner transportation and environmental sustainability, the global automotive industry is undergoing rapid transformation. This study leverages historical multi-decade vehicle data to develop predictive models for fuel economy and CO₂ emissions across a wide range of vehicle technologies. By utilizing advanced machine learning algorithms in Python and integrating insights through Power BI visualizations, the project identifies key correlations between vehicle attributes—such as weight, powertrain, and footprint—and their environmental performance. Results highlight the increasing impact of electric vehicle adoption, hybridization, and light weighting on overall emissions reduction. These insights help forecast the direction of fuel economy standards, emission patterns, and technology shifts across manufacturers and vehicle types. Beyond technical predictions, the study offers a decision-support framework for global policymakers, automotive designers, and
Hazra, Sandip, Tangadpalliwar, Sonali, Hazra, Sanjana
Evaluation of Intercooler Effectiveness with No Fan, Single Fan, and Dual Fan: A Simulation and Experimental Study2026-26-0579To be published on 01/16/2026
Turbochargers play a crucial role in modern engines by increasing power output and fuel efficiency through intake air compression, thereby improving volumetric efficiency by allowing more air mass into the combustion chamber. However, this process also raises the intake air temperature, which can reduce charge density, lead to detonation, and create emissions challenges-such as smoke limits in diesel engines and knock in gasoline spark-ignited (GSL) engines. To mitigate this, intercoolers are used to cool the compressed air. Due to packaging constraints, intercoolers are typically long and boxy, limiting their effectiveness, especially at low vehicle speeds where ram air flow is minimal. This study investigates the use of auxiliary fans to enhance intercooler performance. Two methodologies were adopted: 1D simulation using GT-Suite and experimental testing on a vehicle under different fan configurations-no fan, single fan, and dual fans (positioned near the intercooler inlet and outlet
PATRA, SOMNATH, HIBARE, NIKHIL, Ganesan, Thanigaivel, Gharte, Jignesh Rajendra
Testing Methodology to Calculate the Fuel Economy in Km/Kg of Hydrogen Fuel Cell Electric Vehicle (FCEV) based on Current (Ampere) Method and Flow Method2026-26-0248To be published on 01/16/2026
The globe is looking headlong to set up new benchmarks for the reduction of GHG (Green House Gases) considering short-term and long-term strategies. Efforts in the Internal Combustion Engines (ICE) domain have been accelerating to find an alternative way to reduce harmful emissions. Hydrogen is considered as a promising fuel to leapfrog this transition. Hydrogen fuel can be categorized into vast mobility areas viz. ICE and Fuel Cell Electric Vehicle (FCEV). Hydrogen fuel has attracted global attention from engine researchers due to the crude oil crisis and its rise in prices in recent years. This will serve the nation's goal towards carbon neutrality. Hydrogen has a few advantages such as less fueling time, higher heating value and more efficiency making it an eye-touching fuel for the automotive industry. In the contemporary FCEV segment, many fuel cell technologies have evolved, wherein the development of Proton Exchange Membrane (PEM) fuel cell technology has taken a new height for
JOSHI, ASHISH RAJENDRA, Kandalgaonkar, Siddhesh, Pawar, Yogesh
Development of above 500 kW Diesel Engine & After treatment System to meet CPCB-IV+ Emission Norms2026-26-0234To be published on 01/16/2026
The CPCB-IV+ emission compliance for genset application is applicable with effect from 1st July 2023 as per as per GSR 804(E). The CPCB-II to CPCB-IV+ changeover in very stringent in emission front by almost 90 % emission reduction. It's a significant advancement in environmentally sustainable powertrain technology. To meet the CPCB-IV+ Emission, combustion development & ATS technology plays an important role. First is the base engine need to optimize enough with combustion & associated parts. Second is the after treatment system which will carry the battle further to the engine emission with 10% minimum engineering target. This paper present the systematic approach followed to meet CPCB-IV+ emission norms for upgradation of 21 liter TCIC engine for the power range (56 <P ≤ 560). Here the challenge is that we don't want to major changes in the existing CPCB-II FIE recipe & meet the CPCB-IV+ emission with ECU calibration & ATS system calibration with its potential. Here interesting
RANE, Vikas, Jagtap, Shailesh, Gothekar, Sanjeev, Pawar, Narendra V, Khedkar, Prasad, KAGADE, SAMADHAN, Kendre, Mahadev, G Bhat, Prasanna, Thipse, S
Advancing Circular Economy in India's Automotive Sector: Challenges and Sustainable Solutions2026-26-0238To be published on 01/16/2026
This research examines the fundamental principles of the Circular Economy in relation to the automotive industry in India, a sector that plays a vital role in the country's economy. However, it also presents significant challenges concerning energy consumption and environmental impact. The circular economy framework offers a transformative approach throughout a vehicle’s lifecycle, guiding the automotive industry toward a more sustainable transportation system. One of the key strategies defined by the global automotive commission for decarbonizing this sector involves increasing the recycled plastic content in vehicles to 20-25% by 2030. This target necessitates the recovery of plastics from end-of-life vehicles, though these materials are rarely integrated into compounds today. The automotive industry's reliance on plastics has grown substantially due to their lightweight properties, which enhance fuel efficiency, reduce CO₂ emissions, and improve versatility and mechanical
Kumar, Vijay Bhooshan
Numerical study of a hydrogen ejector with regulated inlet for extended PEMFC operating range in automotive application2026-26-0249To be published on 01/16/2026
Hydrogen recirculation is a key requirement for enhancing fuel efficiency and anode stability in Proton Exchange Membrane Fuel Cell (PEMFC) systems, particularly in automotive applications. Effective hydrogen recirculation is critical for maintaining high efficiency and fuel utilization. A hydrogen recirculation ejector equipped with a regulated pressure inlet, aimed at eliminating the need for mechanical pumps while maintaining optimal hydrogen utilization. The passive operation of the ejector eliminating the need for rotary components which significantly improves system reliability and reduces failure modes commonly associated with moving parts. This work presents a numerical investigation of a hydrogen recirculation ejector featuring a regulated pressure inlet, with the objective of extending its operating range across varying fuel cell power levels. A combination of 1D system-level modelling and 2D multi-species Computational Fluid Dynamics (CFD) simulations was employed to
Khot, Ranjit Uttreshwar, T P, Muhammad, Chougule, Abhijeet
Evaluation of Noise, Vibration, and Harshness–Optimized Cylinder Deactivation on a Class 8 Diesel Truck with Impact on Emissions and Fuel Consumption: A Development of Strategy to Reduce Emissions and Fuel Consumption with Cylinder Deactivation While Providing an Acceptable Cabin Environment2025-01-507411/10/2025
Anticipated NOX emission standards will require that selective catalytic reduction (SCR) systems sustain exhaust temperatures of 200°C or higher for effective conversion performance. Maintaining these temperatures becomes challenging during low-load conditions such as idling, deceleration, and coasting, which lower exhaust heat and must be addressed in both regulatory test cycles and day-to-day operation. Cylinder deactivation (CDA) has proven effective in elevating exhaust temperatures while also reducing fuel consumption. This study investigates a flexible 6-cylinder CDA system capable of operating across any combination of fixed firing modes and dynamic skip-firing patterns, where cylinders transition between activation states nearly cycle-by-cycle. This operational flexibility extends the CDA usable range beyond prior implementations. Data was primarily collected from a test cell engine equipped with the dynamic CDA system, while a matching engine in a 2018 long-haul sleeper cab
Baltrucki, Justin, Matheaus, Andrew Charles, Janak, Robb
Assessing Engine Dynamics, Fuel Efficiency, and Emission Characteristics with HHO-Enriched Fuel: A System-Level Evaluation of a HydroBoost™ Technology03-18-07-004211/08/2025
In the present work, the effect of HHO addition to gasoline was investigated using HHO produced via the HydroBoost™ electrolysis technology—a system specifically designed to overcome the limitations of conventional electrolysis methods, such as electrode degradation, low efficiency, and safety concerns. Engine performance, fuel behavior, and emission characteristics were evaluated both with and without HHO enrichment. A comprehensive four-phase testing protocol was adopted to simulate various real-world driving conditions. Through a multi-parameter assessment—including fuel economy (FE), engine response under different load conditions, fuel savings accounting for parasitic load, total volatile organic compounds (TVOC), and greenhouse gas (GHG) emissions—it was demonstrated that HHO addition significantly enhances both the performance and emission characteristics of a gasoline-powered internal combustion engine. Statistical significance of these parameters was assessed across four
Sherman, Gregory, Singh, Amit Pratap
Development of a Cost-Effective DCU for Diesel Emission Control: Design, Diagnostics, and Compliance2025-28-028611/06/2025
The Dosing Control Unit (DCU) is a vital component of modern emission control systems, particularly in diesel engines employing Selective Catalytic Reduction technology (SCR). Its primary function is to accurately control the injection of urea or Diesel Exhaust Fluid (DEF) into the exhaust stream to reduce nitrogen oxide (NOₓ) emissions. This paper presents the architecture, operation, diagnostic features, and innovation of a newly developed DCU system. The Engine Control Unit, using real-time data from sensors monitoring parameters such as exhaust temperature, NOₓ levels, and engine load, calculates the required DEF dosage. Based on DEF dosing request, the DCU activates the AdBlue pump and air valve to deliver the precise quantity of diesel exhaust fluid needed under varying engine conditions. The proposed system adopts a master-slave configuration, with the ECU as the master and the DCU as the slave. The controller design emphasizes cost-effectiveness and simplified hardware, and
Raju, Manikandan, K, Sabareeswaran, K K, Uthira Ramya Bala, Krishnakumar, Palanichamy, Arumugam, Arunkumar, YS, Ananthkumar
Fuel Differentiation for Energy Efficiency in Heavy-Duty Diesel Applications: A Case Study for the Determination of Exhaust Emissions and Fuel Economy2025-28-023111/06/2025
For the achievement of Net Zero Emission goals, various corporates have started with the planning towards the achievement of short-term goals which are well defined with the implementation of energy conservation and efficiency. In this direction, high cetane diesel is an optimized combination of diesel fuel with higher Cetane Number fortified with Novel & Optimized multi-functional additives (MFAs) formulation for improved performance and specially designed for heavy duty diesel engines & off-highway applications. This innovative concept is based on enhancement of fuel economics by enhancement in fuel combustion, injector cleaning characteristics and reduction of frictional losses. The benefits associated with high cetane diesel include superior cleanliness to keep high pressure diesel injectors clean, better lubricity providing longer injector life, superior combustion leading to lower noise and products formulated for benefits in overall reduction in emissions specially developed for
Kumar, Prashant, Mayeen, Hafiz, Saroj, Shyamsher
Machine Learning Based off-Road Vehicle Turn Identification Using Vehicle & GPS Parameters2025-28-034411/06/2025
Identification of different types of turns during field operation of off-road vehicles is critical in the overall vehicle development as it is helpful in identifying & optimizing machine performance, correct duty cycle, fuel economy, stability analysis, accurate path planning, customer usage pattern & designing the critical components, etc. In this study, a machine learning (ML) based methodology has been developed to detect the off-road vehicle turns using vehicle & GPS parameters. Three most common types of off-road vehicles turn conditions e.g., Straight line, Bulb turn, and Three-Point turn have been considered. Different vehicle parameters (like latitude & longitude, compass bearing, yaw rate, vehicle speed, swash plate angle, engine speed, percent load at vehicle speed, raise lower front & PTO channels) generated during field test have been used here. These vehicle parameters are further processed, analysed and used in ML learning model building. Four ML models e.g., SVM, K-NN
Gangsar, Purushottam
Off-Highway Electrification: A Case Study beyond Propulsion and Emission2025-28-022311/06/2025
To provide needs of food, clothing and infrastructure for growing population of the world, off-highway vehicles such as those in construction, agriculture and commercial landscaping are moving towards electrification for enhanced precision, productivity, efficiency and sustainability. It has also paved way to adopt autonomy of these vehicles to address challenges like skilled labour shortage for timely and efficient execution. There are many challenges and opportunities of electrification in off-highway domain, be it through completely replacing engine in vehicles or efficiency improvements using hybrid architecture for powertrain and auxiliary power demands, electrification being key enabler precision and speed of the complex operations, automation of complex operation. This paper explains the need of electrification in electric off-highway vehicles and shows how the electrification solves the current challenges faced by off-highway heroes like farmers, construction site owners and
Deshpande, Chinmay Vasudev, Mujumdar, Chaitanya, Bachhav, Kiran
Effective Power Management on Diesel Engine Using Electrified Turbocharger2025-28-024211/06/2025
The growing demand for improved fuel efficiency and reduced emissions in diesel engines has led to significant advancements in power management technologies. This paper presents a dual-mode functional strategy that integrates electrified turbochargers to enhance engine performance, provide boost and generate electrical power. This helps in optimizing the overall engine efficiency. The engine performance is enhanced with boosting mode where the electric motor accelerates the turbocharger independent of exhaust flow, effectively reducing turbo lag and provides immediate boost at low engine speeds. This feature also improves high altitude performance of the engine. Conversely, in generating mode, the electric turbocharger recovers or harvest energy from exhaust gases depending on engine operating conditions, converting it into electrical energy for battery recharging purpose. Advanced control systems enable real-time adjustments to boost pressure and airflow in response to dynamic driving
Borle, Shraddha, Prasad, Lakshmi, Couvret, Sebastien, Fournier, Hugo, Chenuet, Laurent
Optimization of Shuttle Shifting Process of Agricultural Tractor using Simulation Environment2025-28-028511/06/2025
Transmission tuning involves adjusting parameters within a vehicle's transmission control unit (TCU) or transmission control module (TCM) to optimize performance, efficiency, and driving experience. Transmission tuning is beneficial for optimizing performance, improving fuel efficiency, smoother shifting and enhancing drivability particularly when a vehicle's power output is increased or for specific driving conditions. Especially in offroad and agricultural machines, transmission tuning is vital to significantly improve vehicle performance during different operations. The process of transmission tuning is quite time consuming as multiple tuning iterations are required on the actual vehicle. A significant reduction in tuning time can be achieved using a simulation environment, which can mimic the actual vehicle dynamics and the real time vehicle behavior. In this paper, tuning during the forward and reverse motion of the tractor is described. A two-level PI control-based shift strategy
Varghese, Nithin
Enhancing Diagnostic Efficiency and Customer Support for Off-Highway Vehicles in India2025-28-030111/06/2025
Off-highway vehicles (OHVs) are vital for India’s construction, mining, agriculture, and infrastructure sectors. With growing demand for productivity and sustainability, the need for efficient customer support and precise diagnostic techniques has become paramount. This paper presents a comprehensive study of challenges faced in India, current and emerging diagnostic technologies, troubleshooting techniques, and strategies for effective customer support. Case studies, tables, and diagrams illustrate practical solutions.
Mulla, Tosif, Thakur, Anil, Tripathi, Ashish
Performance and Emission Characteristics of CI Engines Using Ethanol- Cottonseed Biodiesel Blended with Aluminum Oxide Nanoparticles2025-28-021011/06/2025
As global energy demands continue to grow and environmental challenges intensify, Biodiesel stands out as an environmentally sound and technically feasible alternative to curb fossil fuel use and emissions. This study provides an in-depth analysis of the performance and emissions profile of a compression ignition (CI) engine running on a renewable diesel fuel blend made from ethanol and cottonseed (Cs) combinations enhanced with aluminium oxide (Al2O3) nanoparticles. The experimental fuel blends, consisting of 10%, 20%, and 30% cottonseed biodiesel with 5% ethanol and remaining with conventional diesel, were analyzed under varying engine load conditions. The inclusion of ethanol improved fuel atomization due to its lower viscosity and higher volatility, while Al2O3 nanoparticles acted as advanced combustion catalysts, promoting enhanced oxidation rates and thermal efficiency. Among the blends, B10 (10% cottonseed biodiesel) exhibited superior performance metrics, achieving a brake
T, Karthi, G, Manikandan, Saminathan, Sathiskumar, M E, Chandhuru, S, Bavanya, S, Arunkumar
Adaptive Terrain Morphing Chassis for Off-Highway Vehicles: Enhancing Fuel Efficiency through Dynamic Structural Adaptation2025-28-034211/06/2025
Off-highway vehicles (OHVs) routinely navigate unstable and varied terrains—mud, sand, loose gravel, or uneven rock beds—causing increased rolling resistance, reduced traction, and high energy expenditure. Traditional rigid chassis systems lack the flexibility to adapt dynamically to changing surface conditions, leading to inefficiencies in vehicle stability, maneuverability, and fuel economy. This paper proposes an adaptive terrain morphing chassis (ATMC) that can actively modify its structural geometry in real-time using embedded sensors, hydraulic actuators, and soft robotic elements. Drawing inspiration from nature and recent advances in adaptive materials, the ATMC adjusts vehicle ground clearance, track width, and load distribution in response to terrain profile data, thereby optimizing fuel efficiency and performance. Key contributions include: A multi-sensor fusion system for real-time terrain classification Hydraulic actuators and morphing polymers for variable chassis
Vashisht, Shruti
Development of an Artificial Calibrator for Shift Program Optimization to Enhance Fuel Efficiency2025-32-008211/03/2025
The calibration of automotive electronic control units is a critical and resource-intensive task in modern powertrain development. Optimizing parameters such as transmission shift schedules for minimum fuel consumption traditionally requires extensive prototype testing by expert calibrators. This process is costly, time-consuming, and subject to variability in environmental conditions and human judgment. In this paper, an artificial calibrator is introduced – a software agent that autonomously tunes transmission shift maps using reinforcement learning (RL) in a Software-in-the-Loop (SiL) simulation environment. The RL-based calibrator explores shift schedule parameters and learns from fuel consumption feedback, thereby achieving objective and reproducible optimizations within the controlled SiL environment. Applied to a 7-speed dual-clutch transmission (DCT) model of a Mild Hybrid Electric Vehicle (MHEV), the approach yielded significant fuel efficiency improvements. In a case study on
Kengne Dzegou, Thierry Junior, Schober, Florian, Rebesberger, Ron, Henze, Roman
Development of Supercharged Direct-Injection Two Stroke Engine with Intake and Exhaust Valve for Series Hybrid (2nd Report)- To Realize Lean Burn -2025-32-002311/03/2025
The two-stroke engine, known for its small displacement and high performance, is space-efficient when installed in a vehicle. As such, incorporating two-stroke engines into HEVs is an effective way to reduce vehicle weight and optimize engine space. However, one downside is that the amount of unfired elements in the exhaust gas increases due to the air/fuel mixture being expelled into the exhaust system during the scavenging process. Moreover, combustion can become unstable due to the large volume of residual burned gases in the cylinder. To address these issues, we propose a two-stroke engine equipped with intake and exhaust valves that directly inject fuel into the cylinder. In our first report, we presented an engine design and method that enable high scavenging efficiency and stable combustion in a two-stroke engine [1]. In this second report, we share the results of our research aimed at improving fuel efficiency and achieving low emissions, all while maintaining the high
Sakurai, Yota, Hisano, Atsushi, Saitou, Masahito, Ichi, Satoaki
Experimental Study of hCNG on Single Cylinder 395cc Spark Ignition Engine for Performance and Exhaust Emission2025-32-005011/03/2025
There is growing demand for energy utilization due to stricter environmental emission norms to reduce greenhouse gases and other threats posed due to the emissions are major motivation factors for researchers to adopt on strategic plans to decrease the usage of energy and reduce the carbon contents of fuels, the usage of hydrogen or blend of hydrogen with CNG as a fuel in internal combustion engines is the best option. As hydrogen has lower volumetric energy density and higher combustion temperature, pure hydrogen-fueled engines produce lower power output and much higher NOx emissions than gasoline-fueled engine at stoichiometric air-fuel ratio. Blending of hydrogen with CNG provides a blended gas termed as hydrogen-enriched natural gas (hCNG). hCNG stands for hydrogen enriched compressed natural gas and it combines the advantages of both hydrogen and methane. The addition of Hydrogen to CNG has potential to even lower the CNG emissions and is the first step towards promotion of a
Syed, Kaleemuddin, Chaudhari, Sandip, Khairnar, Girish, Sajjan lng, Suresh
Predicting Transient Soot Emissions in Diesel Engines Using Physical and Machine Learning Models2025-32-001711/03/2025
In recent years, diesel engine emissions regulations have been strengthened worldwide, necessitating the evaluation of regulatory values under transient conditions. Consequently, the need to assess transient states in the development of diesel engines has increased significantly. The evaluation using MBD (Model Based Development) is considered a promising method for achieving both low fuel consumption and simultaneous reduction of NOx and soot emissions. However, the mechanism of soot formation is complex, making it challenging to model mathematically directly. In this paper, hybrid machine learning approaches combining a physical model and a machine learning model are used to validate the prediction of soot emissions under transient conditions in a diesel engine with an EGR system. Various parameters such as fuel consumption and emissions predicted by the physical model are compared with measurements to validate the accuracy of the physical model. The prediction of soot emissions by
Kitamura, Takahiro, Matsuoka, Ayano, Suematsu, Kosuke, Okano, Hiroaki
RDE Testing of Small Motorcycle in Indian Road Conditions and Study the Impact of Instrumentation on Emission and Fuel Economy2025-32-007511/03/2025
This paper presents measurement results of emissions and fuel economy on real-world driving of two-wheelers in India using a state-of-the-art FTIR PEMS technology. The study aimed to characterize the emissions profiles of a small motorcycle under typical Indian driving conditions, including congested urban traffic and highway driving. This is the continuation of the study conducted previously on bigger motorcycle using gas analyzer [1], with necessary adaptations to suit the specific conditions of Indian roads and traffic. Key parameters such as NOx, CO, CO2 and Fuel consumption were measured during real-world driving cycles and comparison is done with standard WMTC emission testing cycle. The findings of this study provide valuable insights into the actual on-road emissions of two-wheelers in India, which can be used to develop more accurate emission models and guide the development of cleaner and more efficient two-wheeler technologies. Key Considerations: Specifics of Indian Driving
Agrawal, Rahul, Jaswal, Rahul, Yadav, Sachin
Full-Cycle CFD Modeling of a Wankel Engine for UAV Applications Tommaso Lucchini, Federico Ramognino, Giovanni Gaetano Gianetti2025-32-001311/03/2025
Rotary engines offer a highly attractive solution for uncrewed aerial vehicles (UAVs) and portable power generation, thanks to their compact design, high power-to-weight ratio, fewer moving parts, and ability to operate on multiple fuels. Despite their promising advantages, these engines still require significant improvements to match the efficiency and lifespan of traditional reciprocating internal combustion engines. In particular, fuel consumption is impacted by heat losses due to the high surface-to-volume ratio of the combustion chamber, as well as the unfavorable interaction between the rotor and stator, which slows down flame propagation. To address these challenges, computational fluid dynamics (CFD) has become an important tool for the study and optimization of Wankel engines, providing insight into how fuel efficiency is influenced by the complex interactions between combustion chamber design, flame dynamics, flow characteristics, and turbulence distribution. This work
Lucchini, Tommaso, Gianetti, Giovanni, Ramognino, Federico, Cerri, Tarcisio, Marmorini, Luca, Buttitta, Marco
Development of Integral Forming for New “NMAX” YECVT Parts Using the Plate Forging Method2025-32-000511/03/2025
Yamaha Motor Engineering Co., Ltd. provides plastic processing technology based on fuel tank press forming technology, and is developing various plastic processing methods, including forging, and developing mold equipment to realize them. This time, the core parts of the YECVT unit mounted on Yamaha Motor Co., Ltd.'s small premium scooter "NMAX" were not made by welding individual parts to each other, but by integrally forming them from a single thick plate using the cold forming method, resulting in lightweight, compact, high-strength, high-precision parts. By incorporating a composite plastic processing method that takes advantage of the characteristics of the material while making full use of analysis technology and mold technology, we were able to develop a composite plastic processing method (plate forging method) that creates new added value and mass produce it. In addition,this development has made it possible to achieve a thickness increase of 1.7 times the standard material
Hongo, Hironari, Tamaru, Shogo, Uda, Shinnosuke
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