Browse Topic: Market research

Items (155)
The advancement of electric mobility has driven the development of technologies aimed at enabling smart, secure, and interoperable electric vehicle (EV) charging. In this context, this paper presents a technical and market analysis of the Vehicle-to-Grid (V2G) and Plug & Charge (PnC) functionalities, focusing on their architectures, applicable technical standards, communication protocols, levels of commercial maturity, and emerging applications. The discussion begins with a review of the main national and international standards relevant to charging infrastructure, with emphasis on IEC 61851, IEC 62196, and ISO 15118 series, which address the technical requirements of equipment, connectors, and vehicle-to-grid communication. The operation of V2G is then discussed as a technology that enables bidirectional energy flow between the EV and the power grid, with a focus on topological configurations, pilot project applications, and regulatory and economic challenges that currently limit its large-scale adoption. In parallel, Plug & Charge solutions based on ISO 15118 are presented, which enable automatic authentication and billing directly through vehicle-charger communication, eliminating the need for user interaction via cards or apps. Market analysis identifies commercially available V2G- and PnC-compatible EV models, charging stations, backend systems, and roaming platforms such as Hubject and Digital Charging Solutions (DCS). The findings show that while V2G is still in a validation phase with limited deployments, Plug & Charge is already undergoing broader commercial adoption. This study provides technical and strategic insights to support national research and development initiatives, outlining the main technical requirements, standards, and regulatory challenges for the effective implementation of these technologies in the Brazilian electric mobility ecosystem.
Marques, Felipe L. R.Arioli, Vitor T.Bernardo, RodrigoNakandakare, Cleber A.Pizzini, Luiz R.Nicola, Eduardo V.
Computer-aided synthesis and development tools are essential for discovering and optimizing innovative concepts. Evaluating different concepts and making informed decisions relies heavily on accurate assessments of drive system properties. Estimating these properties in the early stages of development is challenging due to the depth of modelling required. In addition, defined requirements play a critical role in drive system sizing. This paper presents a tool chain for the synthesis of new electrified drive concepts, with emphasis on requirements definition and modelling. The requirements definition method combines market analysis with a generalized calculation and estimation approach, providing a novel perspective. In addition, we introduce mass and cost modelling capabilities integrated into the tool chain. The mass model achieves high accuracy, with deviations of only 1.6 % at the vehicle level and 6.1 % at the component level. Finally, the paper examines the mass and cost implications of various dedicated and add-on hybrid concepts. Dedicated hybrid transmissions have the advantage of lower transmission costs, although this is offset by higher electrical component costs.
Sturm, AxelHenze, Roman
The switch to electrified off-highway vehicles can help reduce reliance on hydraulic components that decrease system efficiency via parasitic losses. The off-highway machine industry is embracing new technologies to optimize operations, specifically regarding electric and hybrid off-highway equipment. The electric off-highway equipment market is poised for growth, with an expected 12.5% compound annual growth rate (CAGR) from 2025-2034, reaching over $17 billion, according to Market Research Future. These off-highway vehicles operate on tough terrain and require unprecedented amounts of power for long duty cycles. Diesel engines have always been the conventional application for this kind of work, but now hybrid and electric vehicles are starting to gain traction thanks to new innovations and more investment. While the implications of replacing traditional combustion engines with hybrid or electric counterparts can be intimidating, learning the challenges and opportunities each option holds gives end users the power to determine what's right for their needs.
Liu, Zifan
In addition to providing safety advantages, sound and vibration are being utilized to enhance the driver experience in Battery Electric Vehicles (BEVs). There's growing interest and investment in using both interior and exterior sounds for pedestrian safety, driver awareness, and unique brand recognition. Several automakers are also using audio to simulate virtual gear shifting of automatic and manual transmissions in BEVs. According to several automotive industry articles and market research, the audio enhancements alone, without the vibration that drivers are accustomed to when operating combustion engine vehicles, are not sufficient to meet the engagement, excitement, and emotion that driving enthusiasts expect. In this paper, we introduce the use of new automotive, high-force, compact, light-weight circular force generators for providing the vibration element that is lacking in BEVs. The technology was developed originally for vibration reduction/control in aerospace applications, has been recently tested in various vehicles, and demonstrates the effectiveness for providing a real haptic feel across the entire vehicle. Shaking the vehicle globally provides a unique capability for BEVs, including Hybrid Electric Vehicles and for helping to create a smooth transition between Gas and Electric power, for example. The technology can be used to generate and emulate high-performance, high power, combustion engine feel, including idle, engine run-up/acceleration, simulated gear shifts, and Advanced Driving Assistance and Systems (ADAS) haptic indicators. The optional and customizable vibration can also mask road vibration which becomes very noticeable in otherwise smooth BEVs and can provide the perfect supplement to existing audio enhancements and gear shifting features. Additionally, the paper describes how the force generating device can be packaged in a light weight, compact, low-power manner. The technology will be compared to other force generating methods, and discuss its pros and cons.
Norris, Mark A.Orzechowski, JeffreySanderson, BradSwanson, DouglasVantimmeren, Andrew
Automotive industry is growing rapidly with innovations leading to increase in new features and improving the Quality of vehicles. These new components are developed with the available design standards across global OEMs. This Quality research paper aims to address the need of revision of design standards due to environmental factors prevailing in India. With the increase towards autonomous mobility, the number of electronics is also increasing, and this involves hardware & software evaluation. The hardware testing is a point of concern due to increase in the failure rate from the markets. Environment changes are very much evident with the growing economies and OEMs are developing the components with innovation, but if the basic design standards are not revised in parallel with the changing environment, the issues will continue to trouble the end customers. The failed cases data received from across the country was analyzed and observed that the cases are majorly reported from urban localities established near to the city drains. The lab report of failed components shows a chemical reaction with environment gases leading to conductivity issue. Based on the study, Quality research was done around the localities to understand the gaseous concentration. The data shows 50X high gaseous concentration compared to the development standard and the same was then simulated. This data gave us a new perspective to revise the development testing standards & can also enable OEMs to better understand the market problems & take action for environment factors. With the ever-changing environmental conditions & expansion of automotive market, the possibilities of such impacts are limitless & this approach can be used to further study the automotive issues due to other factors like Dust, Water, Temperature, Humidity, Snow, Insects etc.
Marwah, RamnikPyasi, PraveenBindra, RiteshGarg, Vipin
This study aims to explore the multifaceted influencing factors of market acceptance and consumer behavior of low-altitude flight services through online surveys and advanced neuroscientific methods (such as functional magnetic resonance imaging fMRI, electroencephalography EEG, functional near-infrared spectroscopy fNIRS) combined with artificial intelligence and video advertisement quantitative analysis. We conducted an in-depth study of the current trends in low-altitude flight vehicle development and customer acceptance of low-altitude services, focusing particularly on the survey methods used for market acceptance. To overcome the influence of strong opinion leaders in volunteer group experiments, we designed specialized surveys targeting broader online and social media groups. Utilizing specialized knowledge in aviation psychology, we designed a distinctive questionnaire and, within just 7 days of its launch, gathered a significant number of valid responses. The data was then analyzed using AI to provide original, insightful data on the acceptance of low-altitude services. Furthermore, we addressed the limitations of traditional manual survey methods by designing an advanced system combining EEG and AI analysis to automatically generate surveys by measuring neural and physiological responses while subjects watched video advertisements for low-altitude services. Our research offers a comparison with existing online survey forms and proposes specific predictions to potentially improve the accuracy of online surveys.
Ma, XinDing, ShuitingLi, Yan
To promote real time monitoring, In use performance ratio monitoring “IUPRm” checks has been enforced in India from Apr’23 as a part of BS6-2 regulation. Since IUPRm is representative of diagnostic frequency in real driving conditions and usage pattern. therefore, a clear understanding of real-world driving is required to define IUPRm targets. This paper shares methodology and Validation steps for defining IUPRm routes for Indian market. Methodology objective is to standardize the market operating conditions over a particular region. Selected Methodology consist of three steps: For defining IUPRm route framework, first step is to have a pre-market survey to know current In use performance ratio “IUPR” status and improvement areas in existing market vehicles. Second step is to define market representative localized on road routes based on the finding of Pre-market survey. Third step is to validate defined IUPR routes and correlate the output in reference to coverage of market operating conditions. Routes definition (Step 2) starts with organizing customer survey to capture real driving inputs like average trip mileage, route traffic density, driving style etc. Based on survey inputs, prospective routes should be shortlisted as per route selection criteria and further based on drive pattern analysis, performed on ECU log data collected over prospective routes, route finalization can be done. For Validation of defined IUPR routes (Step 3), Post market survey can be conducted in which market data of the models developed on IUPR methodology should be collected and general metrics like Average IUPR, Gen. denominator trend, demographical variations etc. can be analyzed. From post market survey, correlation of average IUPR and other metrics defined above, can be done to verify whether development over defined routes cover all major conditions of target market or not. With this study, robust IUPR routes can be framed which will help the function development team in evaluating IUPRm in upcoming passenger cars.
Sharma, PrashantSingh, DilbaghKumar, AmitGautam, AmitKhanna, Vikram
To promote real time monitoring, IUPRm checks has been enforced in India from Apr’23 as a part of BS6-2 regulation. Since IUPRm monitoring is representative of diagnostic frequency in real driving conditions and usage pattern. Therefore, a clear understanding of real-world driving is required to define IUPRm targets. This paper shares methodology and Validation steps for defining IUPR routes for Indian market. Methodology objective is to standardize the market operating conditions over a particular region. Selected Methodology consist of three steps: For defining IUPR route framework, first step is to have a pre-market survey to know current IUPR status and improvement areas in existing market vehicles. Second step is to define market representative localized on road routes based on the finding of Pre-market survey. Third step is to validate defined IUPR routes and correlate the output in reference to coverage of market operating conditions. Routes definition (Step 2) starts with organizing customer survey to capture real driving inputs like Average trip mileage, route traffic density, driving style etc. Based on survey inputs, prospective routes should be shortlisted as per route selection criteria and further based on drive pattern analysis, performed on ECU log data collected over prospective routes, route finalization can be done. For Validation of defined IUPR routes (Step 3), Post market survey can be conducted in which market data of the models developed on IUPR methodology should be collected and general metrics like Average IUPR, Gen. Denominator trend, demographical variations etc. can be analyzed. From post market survey, correlation of average IUPR and other metrics defined above, can be done to verify whether development over defined routes cover all major conditions of target market or not. With this study, robust IUPR routes can be framed which will help the function development team in evaluating IUPRm in upcoming passenger cars.
Sharma, PrashantSingh, DilbaghKumar, AmitGautam, AmitKhanna, Vikram
Effective smart cockpit interaction design can address the specific needs of children, offering ample entertainment and educational resources to enhance their on-board experience. Currently, substantial attention is focused on smart cockpit design to enrich the overall travel engagement for children. Recognizing the contrasts between children and adults in areas such as physical health, cognitive development, and emotional psychology, it becomes imperative to meticulously customize the design and optimization processes to cater explicitly to their individual requirements. However, a noticeable gap persists in both research methodologies and product offerings within this domain. This study employs user survey to delve into children’s on-board experiences and utilization of current child-centric in-cockpit interaction solutions (C-SI Solutions), that over 50% of the interviewees (children) got on-board at least several times per week and over half of the parents would pay for C-SI Solutions, but less than 8% of the interviewees reported actual usage. By employing an interdisciplinary approach that harmonizes Design Thinking and Developmental Psychology, this research reveals that the traditional cockpit is actually a liminal space for children, and introduces the ICE Model (Evaluation Model for In-Cockpit Child-Centric Interaction Solutions) for providing insights into C-SI solution design. This model is consisted of two modules: IPO-Based Structured Module and I&C (Intelligence & Consciousness) Evaluation Module. IPO-Based Structured Module is based on the IPO (Input-Process-Output) Model and for interpreting C-SI Solution’s structure, so that to realize the paradigm shift in Design Thinking. I&C Evaluation Module, the second one, is for analyzing C-SI Solution’s psychological developmental function. The ICE model is then applied to conduct market research, aiming to identify challenges and shortcomings with current C-SI Solutions. Subsequently, this research offers recommendations and possibilities for the improvement of designing C-SI Solutions, that it requires not only seamless cooperation between designers and engineers, but also interdisciplinary collaboration.
Xu, JinghanHui, XinruWang, YixiangJia, Qing
Connected autonomous vehicles that employ internet connectivity are technologically complex, which makes them vulnerable to cyberattacks. Many cybersecurity researchers, white hat hackers, and black hat hackers have discovered numerous exploitable vulnerabilities in connected vehicles. Several studies indicate consumers do not fully trust automated driving systems. This study expanded the technology acceptance model (TAM) to include cybersecurity and level of trust as determinants of technology acceptance. This study surveyed a diverse sample of 209 licensed US drivers over 18 years old. Results indicated that perceived ease of use positively influences perceived usefulness, perceived ease of usefulness negatively influences perceived cyber threats, and perceived cyber threats negatively influence the level of trust.
King, WarrenHalawi, Leila
Through connectivity with the electric grid, electric vehicles (EVs) minimize or eliminate the need for fossil fuels. Despite the rapid adoption of EVs in recent times, most government adoption objectives have not been attained. This article aims to comprehend the reasons behind the limited uptake of electric scooters in India and the driving aspects. This research used a grounded theory methodology. Using a snowball sampling technique, we conducted 25 in-depth interviews with EV owners, mainly based in Delhi and Mumbai. As an outcome of the study, four drivers and four impediments to the adoption of EVs have been formulated. The study shows that there are Financial, Technological, Operational, and Psychological drivers and Technological/Infrastructural, Operational, and Psychological impediments to the adoption. The study identifies the key concern areas in the form of categories of drivers and impediments, which can be considered in industrial and public policymaking. This research broadens our understanding of India’s uptake of EVs and provides key insights to organizations and policymakers regarding EV adoption in India.
Suri, AnkitDeepthi, B.Sharma, Yogesh
The automotive industry is going through one of its greatest restructuring, the migration from internal combustion engines to electric powered / internet connected vehicles. Adapting to a new consumer who is increasingly demanding and selective may be one of the greatest challenges of this generation, Original Equipment Manufacturers (OEM) have been struggling to keep offering a diversified variety of features to their customers while also maintaining its quality standards. The vehicles leave the factory with an embedded SIM Card and a telematics module, which is an electronic unit to enable communication between the car, data center. Connected vehicles generate tens of gigabytes of data per hour that have the potential to be transformed into valuable information for companies, especially regarding the behavior and desires of drivers. One of the techniques used to gather quality feedback from the customers is the NPS it consists of open questions focused on top-of-mind feedback. Here is where AI and ML comes into play, using NLP and several other computational techniques to download, extract, structure, read, process, understand and categorize all this data into specific predetermined categories, allowing engineers to accelerate fixing quality issues and improving user experience. The ML model developed in this article identify costumer complains in an enormous data lake and groups them into categories. After a significative amount of data is collected and grouped into it enables the algorithm to predict future trends and together with real time connected vehicle data the model can alert the responsible engineers to develop an action to solve the problem without more customers even actually experience the failure. The ML algorithm is still on its development phase, but the initial results are promising, we have successfully processed more them 6 millioncustomers feedback finding problems with precision and accuracy close to 90%.
Torres Fernandes Veiga, Daniel Thadeude Miranda Junior, Airton WagnerNascimento Silva, LuanaSena Cavalcante, Mairondos Santos, Maria da Conceição
During the early phase of vehicle development, one of the key design attributes to consider are the interior storages for occupants. Internal storage is the pillar that is responsible for user’s comfort and make into customer comfort needs in engineer metrics. Therefore, it is one of the key requirements to be considered during the vehicle design. The vehicle has some interior storages, like storages on door trim, floor console and IP and to define the best solution for the customer, engineering team has certain internal vehicle characteristics such as the volume and size of storage are engineer metrics that influence the perception of comfort for occupants. One specific characteristic influencing satisfaction is the glove box volume, which is the subject of this paper. The objective of this project is to analyze the relationship between the glove box volume with the occupant’s satisfaction under real world driving conditions, based on research, statistical data analysis and dynamic clinics.
Cardoso Santos, AlexGenaro, PieroTerra, RafaelPádua, AntônioZapiello, GabrielRossini, RafaelBenevente, Rodrigo
For Chinese low-cost airlines network, this article employed two indicators: network topology indexes, to evaluate the current status of the network, and economic performance indexes, to analyze the development potential of the network. From the topology indexes, each airline has its own different characteristics, advantages, and disadvantages, while from economic and socio-demographic indexes, Spring Airlines, West Air, and China United Airlines have obvious advantages and other airlines have distinct shortcomings. Then, the TOPSIS (Technique for Order Preference by Similarity to an Ideal Solution) method was used to comprehensively evaluate Chinese low-cost airlines. The results show that the ranking in terms of network is: Spring Airlines, Western Airlines, China United Airlines, Lucky Air, 9 Air, Chengdu Airlines, and also show Chinese low-cost airlines network is in initial and growth stage.
Wang, ChaofengWang, Delong
Stryker is one of the world’s leading medtech companies. From medical and surgical to neurotechnology and orthopedics, Stryker’s innovative products include digital and enabling technologies to support customers and drive the growth of the company. Stryker is “a category leader across all of its businesses in one category or another. It has a diversified customer base with massive potential upsides, including advanced imaging, stroke care, safety, and medical robotics,” according to market analysis firm Seeking Alpha. “While there are always leaders in specific fields, very few fields have as clear a leader as Stryker seems to be in these segments.”1
Defining a global powertrain roadmap is a challenging yet crucial step towards meeting sustainability goals. OEMs usually start from independent market research, competition, market requirements and regulations to build this roadmap. However, how do they make sure that the preliminary powertrain choices they make will meet the defined requirements? How big are the assumptions they take at this early stage of powertrain development? In this paper a holistic system simulation method is proposed to assess, compare, and rank different powertrain choices for different markets under different regulations, from the tailpipe CO2 emissions point of view. This method relies on simplified powertrain and vehicles graphical models that are compared together for different mission profiles, corresponding to different markets. It includes battery electric, hybrid, plug-in hybrid, fuel cell electric and conventional vehicles. Fuel consumption, tailpipe CO2 emissions and vehicle longitudinal performances are the compared criteria. The outcome of this study is a fictive powertrain roadmap that has been refined using relatively simple and fast simulations. The next step is to extend this roadmap study to a complete fleet analysis as well as a full life cycle assessment.
Nicolas, Romain
Even before the pandemic disrupted patients’ in-person interactions with their healthcare providers, visionary designers had made significant strides in developing new options for self-operated medical devices. Innovations in wearable technologies along with more streamlined and intuitive handheld options are gaining traction at a rapid pace. A Transparency Market Research analysis put the value of the global remote patient monitoring devices market at $8 billion in 2019, with a projected CAGR of 12.5 percent from 2020 to 2030.1
The automotive landscape has under-gone a revolution in technology demands in the last two decades. Today, automakers can integrate cutting edge silicon chips, space and energy efficient electronics, and powerful software into their vehicles. As a result, differentiation in the modern automotive industry is no longer derived from mechanical and physical design, but by the vehicle features and functionality that embedded chips, electronics, and software deliver. Analogizing today's vehicles to 'smartphones on wheels’ has never been closer to reality.
This paper describes a configuration and controller, designed using Autonomie,1 for dual-motor battery electric vehicle (BEV) heavy-duty trucks. Based on the literature and current market research, this model was designed with two electric motors, one on the front axle and the other on the rear axle. A rule-based control algorithm was designed for the new dual-motor BEV, based on the model, and the control parameters were optimized by using a genetic algorithm (GA). The model was simulated in diverse driving cycles and gradeability tests. The results show both a good following of the desired cycle and achievement of truck gradeability performance requirements. The simulation results were compared with those of a single-motor BEV and showed reduced energy consumption with the high-efficiency operation of the two motors.
Yu, KyungjinVijayagopal, RamKim, Namdoo
BSR noise is an important parameters for customer discomfort. According to a market survey, squeaks and rattles are the third most important customer concern in cars after six months of ownership. The high quality acoustic environment of a car, annoying noises like buzz, squeak, and rattle is related to various parameters such as material assembly, tolerance, aging, humidity, surface contact, and surface hardness. BSR is originated from frictional movement between two parts or from the impact between two parts. The rattle noise is caused when surfaces close to each other move perpendicular to each other due to insufficient attachments or insufficient structural strength. In our study, we have shown the impact of various front suspension component in front suspension assembly on BSR noise and also the method to detect and attenuate the same. A methodical analysis process is shown to identify the contributing part and resolve the BSR issue. A detailed case study on vehicle level is carried out to achieve the required BSR score.
Deshmukh, SagarHazra, SandipMohare, Gourishkumar
With recent advances in electric vehicles, there is a plethora of powertrain topologies and components available in the market. Thus, the performance of electric vehicles is highly sensitive to the choice of various powertrain components. This paper presents a multi-objective optimization model that can optimally select component sizes for batteries, supercapacitors, and motors in regular passenger battery-electric vehicles (BEVs). The BEV topology presented here is a hybrid BEV which consists of both a battery pack and a supercapacitor bank. Focus is placed on optimal selection of the battery pack, motor, and supercapacitor combination, from a set of commercially available options, that minimizes the capital cost of the selected power components, the fuel cost over the vehicle lifespan, and the 0-60 mph acceleration time. Available batteries, supercapacitors, and motors are from a market survey. The considered lifespan is taken as 10 years, and the traveling distance is estimated at 50.9 miles per day using a combination of standard driving cycles. The resulting optimization problem is solved with the help of a quasi-static powertrain model which is developed using MATLAB/Simulink. A Genetic Algorithm is used to find the optimal solution in the case study. Normalized weighting factors are given to help users meeting their preferred performance during the power component design. Battery packs in the case study are chosen from LiFePO4 18650 cells with total capacity up to 100 kWh. Seven available types of supercapacitors along with 6 popular motors are also included in the design options. Two samples of the design results are compared to analyze the relevant tradeoff between performance indicators and cost.
Shinde, AkashKshirsagar, KunalArshad, Saad BinPatil, UnmeshZhang, Jiangfeng
With the development of autonomous driving technology, automated buses have begun trial operations in many cities around the world, and marketization has become an important issue. In order to explore the influencing factors of the public's willingness to use automated buses, two rounds of surveys were conducted. Firstly, the importance of the attributes of automated buses was studied, based on which questionnaires on willingness to use automated buses were designed. Using data from 266 questionnaires collected, a logistic regression model was established. Model results show that demographic variables and historical travel behavior characteristics will have a significant impact. Women are less willing to choose automated buses than men, and older people aged above 50 are more likely to use the mode. People who often use regular buses to travel have higher willingness to choose automated buses than people using other modes. Among people using other modes including private cars, subways, ride-hailing, bicycles, etc., those using private cars and bicycles have higher potential to become automated bus users, while ride-hailing and taxi users have the lowest potential. It is also found that being equipped with a driver, having dedicated lanes, short bus headways, low fares, and short walking distances will increase people’s willingness to use automated buses. The research results can provide a theoretical basis for improving the acceptance of automated buses. Suggestions for the operation and promotion of automated buses are put forward.
Xi, HaijiaoWu, ZhongyiZhou, HongmeiYi, Maomao
Emissions of particulate matter, or PM, due to brake wear, are not well quantified in current air pollutant emission inventories. Current emission factor models need to be updated to reflect new technologies and materials and to incorporate the effects of changing driving habits and speeds. While emission regulations drive technical innovations that are significantly reducing PM emissions in vehicle exhaust, non-exhaust automotive emissions remain unregulated. Current emission factor models need to be updated to reflect the changes caused by new technologies, materials, and speed-dependent vehicle usage. Most research regarding brake emissions relies on a laboratory setting. Laboratory testing has allowed researchers, application engineers, data modeling engineers, and environmental agencies to generate large datasets for multiple vehicle configurations and friction couple designs. However, these results can be inconclusive or confusing to compare at best, due to the lack of a standardized method. This paper reports on a six-vehicle campaign conducted under standardized, repeatable, and reproducible conditions. By relying on state-of-the-art speed control systems, the inertia dynamometer can recreate specific driving profiles derived from field measurements. The study involved testing brake corners from six vehicles. The test plan included original equipment service parts, or OES, and aftermarket friction couples, or AM, on an enclosed brake inertia dynamometer. The individual friction couples include the friction material along with the commonly used mating disc or drum per the market survey performed early during the project. This approach reflects the OE brake configuration and subsequent brake replacement jobs. The test cycle used represents vehicle usage in California. The project relied upon approved testing protocols, test system validation, adjustment of cooling airspeeds, and interlaboratory evaluation for filter weighing methods. The results from more than 80 tests show the effects of axle position, friction couple formulation, as well as vehicle size, type, and speed. These results show substantial variation in brake PM emissions by vehicle application and friction couple type.
Agudelo, CarlosVedula, Ravi TejaCollier, SonyaStanard, Alan
Because the scooter is convenient, the market continues increasing. As a result of market survey, it was revealed that the scooter repeated sudden acceleration and deceleration. Therefore, the oil consumption may occur in special pattern. The oil consumption is an important development target. On the other hand, the oil consumption is complicated phenomenon. In this study, the sulfur trace method was used for measurement of the oil consumption. When a throttle was closed and the intake pipe became the negative pressure, the SO2 emission (oil consumption) increases. Then, using a glass cylinder and a high-speed camera, motion of the engine oil was observed. It was revealed that the engine oil rises to the combustion chamber after stopping at the 4th Land. By a combination of the sulfur trace test and the visualization test, oil consumption phenomenon of the scooter was able to be understood.
Kohno, TaichiSuda, NaoyukiNinomiya, Yoshinari
Small internal combustion engines outperform batteries and fuel cells in regards to weight for a range of applications, including consumer products, marine vehicles, small manned ground vehicles, unmanned vehicles, and generators. The power ranges for these applications are typically between 1 kW and 10 kW. There are numerous technical challenges associated with engines producing power in this range resulting in low power density and high specific fuel consumption. As such, there is a large range of engine design solutions that are commercially available in this power range to overcome these technical challenges. A market survey was conducted of commercially available engines with power outputs less than 10 kW. The subsequent analysis highlights the trade-offs between power output, engine weight, and specific fuel consumption. These engines are analyzed to show the benefits and disadvantages of different engine design parameters including fuel type, number of strokes per cycle, number of cylinders, intake pressure, and cooling strategy. A Pareto frontier analysis is conducted to identify the top performing engines based on the output power and the total power system weight. Recommended designs are presented for different ranges of output powers.
Mittal, Vikram
The Generic Open Architecture (GOA) Framework family of documents is organized into sets. This is the introductory document for those sets. The GOA family of documents is intended to support the development of affordable systems through the use of open systems concepts. The GOA family of documents is intended to provide input for the systems engineering process. The documents are applicable to the analysis of existing architectures as well as the development of new system architectures using open systems concepts. The domain specific documents catalog appropriate interface standards and, along with the domain independent documents, define a technical architecture for an associated specific domain. In other words, they provide the “rules and regulations” (i.e., the “building codes”) to be used during the systems engineering process when developing a system architecture for use in that domain. Each domain specific set of documents includes recommended interface standards, rationale for those standards, and guidance in the application of those standards for a given analysis or development.
AS-2 Embedded Computing Systems Committee
The Deep Orange program immerses automotive engineering students into the world of an OEM as part of their 2-year graduate education. In support of developing the program’s seventh vehicle concept, the students studied the sponsoring brand essence, conducted market research, and made a heuristic assessment of competitor vehicles. The upfront research lead to the definition of target customers and setting vehicle level targets that were broken down into requirements to develop various vehicle sub-systems. The powertrain team was challenged to develop a scalable propulsion concept enabled by a common vehicle architecture that allowed future customers to select (at the point of purchase) among various levels of electrification best suiting their needs and personal desires. Four different configurations were identified and developed: all-electric, two plug-in hybrid electric configurations, and an internal combustion engine only. The electrified powertrain comprises of an innovative thermal system using the structural rocker beams as heat exchangers, thereby eliminating the need for conventional radiators. Two cargo compartments (one at each end of the vehicle) were realized through efficient packaging of the electric units and an internal combustion engine in the front and rear, respectively, with a modular energy (battery and/or fossil fuel) storage system located under the passenger compartment. Simulation tools were used to size the powertrain components for each of the four propulsion configurations. The efficiency of the thermal system was verified using CFD analyses in combination with preliminary bench testing. The outcome of the Deep Orange 7 project was a drivable vehicle demonstrator designed, engineered, built and tested by the student team. Industry partners functioned as project sponsors as well as mentors throughout the 2-year development cycle.
Schwambach, BrenoBrooks, JohnellVenhovens, PaulBagga, KartikBeckman, MitchellCopley, WilliamIvanco, AndrejJenkins, CaseyKnizek, RobertMattinson, KyleMcConomy, ShayneMims, LaurenNarasimhan, BhoomikaPrucka, RobertShrivastava, RohanUppalapati, DheemanthYerra, Veera AdityaButterfield, MarkSiegel, HarryKarg, JochenSchulte, JoergWeber, Julian
The automotive industry is dramatically changing. Many automotive Original Equipment Manufacturers (OEMs) proposed new prototype models or concept vehicles to promote a green vehicle image. Non-traditional players bring many latest technologies in the Information Technology (IT) industry to the automotive industry. Typical vehicle’s characteristics became wider compared to those of vehicles a decade ago, and they include not only a driving range, mileage per gallon and acceleration rating, but also many features adopted in the IT industry, such as usability, connectivity, vehicle software upgrade capability and backward compatibility. Consumers expect the latest technology features in vehicles as they enjoy in using digital applications in laptops and mobile phones. These features create a huge challenge for a design of a new vehicle, especially for a human-machine-interface (HMI) system. A typical New Product Introduction (NPI) cycle in the automotive industry may range between two and five years, but rapidly changing technologies in the IT industry may evolve into a next generation in just three to six months. The traditional design methodologies in the automotive industry usually require clear boundary conditions before a team can develop a device or system in a vehicle. The definition of boundary conditions is based on empirical data or market survey results. For example, Many OEMs utilize Quality Function Deployment (QFD) to transform customer needs into the design of engineering functions and detailed parameters. However, due to the intersection of the automotive industry and the IT industry, the boundary conditions for a human-machine-interface (HMI) system become unstable, and it is risky to design a HMI system based on the assumption that the boundary conditions will not change during a NPI cycle. With the fast growing autonomous technologies, a modern vehicle may have a totally different HMI system compared to that of traditional cars. With more and more disruptive technologies are introduced in the automotive industry, customers’ voices also became blurring. Sometimes, the majority of customers do not know a future trend and whether they will like these changes. If a development team design a HMI system purely based on the history data or market surveys, the team may lose a foresight. This paper discusses a design method for a modern vehicle’s HMI system. A persona is introduced in the design process and co-creation is utilized to generate design options. A final solution is selected based on psychological and statistical analysis. A design case for the Chinese Automotive market is also elaborated in the paper as an example.
Li, XinyuGe, XinyuWang, Ying
This study is an attempt to develop a decision support and control structure based on fuzzy logic for deployment of automotive airbags. Airbags, though an additional safety feature in vehicles, have proven to be fatal at various instances. Most of these casualties could have been avoided by using seat belts in the intended manner that is, as a primary restraint system. Fatalities can be prevented by induction of smart systems which can sense the presence and differentiate between passengers and conditions prevailing at a particular instant. Fuzzy based decision making has found widespread use due to its ability to accept non-binary or grey data and compute a reliable output. Smart airbags also allow the Airbag Control Unit to control inflation speed depending on instantaneous conditions. The objective of this study is to develop a decision system which could control a microcontroller using IF-THEN statements and thereby control and optimize airbag deployment speed depending on the accident circumstances. After an in-depth study of literature available on accidents and airbag deployment circumstances, rules for fuzzy decision structure have been drafted and rule surfaces computed. The study involved collection of ergonomic data of over 20 passenger car variants of some prominent automobile companies sold in the Indian market and then their careful analysis in conjunction with deceleration of vehicle, distance from airbag panel, velocity of vehicle, seat belt and weight of passenger. The input variables include the aforementioned factors and multilevel inflation speed is the output variable of the proposed decision structure.
Batra, RushilNanda, SahilSinghal, ShubhamSingari, Ranganath
The competitiveness within the automotive sector increases constantly. Research institutes, universities and manufacturers are commonly trying to discover the new trends and to develop novel technologies. Nevertheless, it is important to understand if a certain technology is worth researching. In order to do that, a state of the art survey is necessary which is usually divided in two main groups: Literature Information and Market Analysis. The literature information regards papers, congress proceedings, books, among other types of formal publication. The market analysis is responsible to gather information within the manufacturers press releases, websites and events, for example. Even though, depending on the technology, those two topics are not enough to reveal the importance of a given technology. Therefore, it is necessary to search the patents database, where it is possible to find the development status of a device. However, a patent survey it is not trivial and some methodology is needed. This papers aims on proposing a proper methodology for patent survey focused on automotive mechanisms such as gear trains, suspensions, steering and engines. The methodology it is explained step by step and a brief overview about patents is given. At the end a case study regarding the Variable Compression Ratio engines is given. This proper methodology for patent survey allowed the researchers to propose an enhanced classification for the VCR topic, to help defining design requirements and to understand the potential for innovation within the desired topic.
Hoeltgebaum, Thiagode Souza Vieira, RodrigoMartins, Daniel
The Deep Orange framework is an integral part of the graduate automotive engineering education at Clemson University International Center for Automotive Research (CU-ICAR). The initiative was developed to immerse students into the world of an OEM. For the 6th generation of Deep Orange, the goal was to develop an urban utility/activity vehicle for the year 2020. The objective of this paper is to describe the development of a multimaterial lightweight Body-in-White (BiW) structure to support an all-electric powertrain combined with an interior package that maximizes volume to enable a variety of interior configurations and activities for Generation Z users. AutoPacific data were first examined to define personas on the basis of their demographics and psychographics. The resulting market research, benchmarking, and brand essence studies were then converted to consumer needs and wants, to establish vehicle target and subsystem requirement, which formed the foundation of the Unique Selling Points (USPs) of the concept. The various sub-systems within the vehicle were then developed; a systems integration approach was used to balance design, engineering, and project (cost, weight, and timing) compromises. The paper discusses the BiW as an enabler of the vehicle USPs, including an very low, flat floor, a utility-oriented asymmetric door concept, and an integrated hatch and rear bumper which create a low lift-over height for loading and unloading. The development of the topology, geometry, and properties of the BiW structure in relation to the chassis, powertrain, and occupant packaging elements required balancing design space, functionality, cost, and weight. Novel manufacturing processes, materials, and joining techniques are described in addition to elaborations on the final realization of the BiW concept.
Flegel, ChristopherBhivate, ParthLi, LiangMathur, YashPhalgaonkar, SanketBenton, MarkMuralidharan, PrasanthBrooks, JohnellPilla, SrikanthVenhovens, PaulLewis, DavidDeBry, GarrettPayne, Craig
The Deep Orange framework is an integral part of the graduate automotive engineering education at Clemson University International Center for Automotive Research (CU-ICAR). The initiative was developed to immerse students into the world of an OEM. For the 6th generation of Deep Orange, the goal was to develop an urban utility/activity vehicle for the year 2020. The objective of this paper is to explain the interior concept that offers a flexible interior utility/activity space for Generation Z (Gen Z) users. AutoPacific data were first examined to define personas on the basis of their demographics and psychographics. The resulting market research, benchmarking, and brand essence studies were then converted to consumer needs and wants, to establish technical specifications, which formed the foundation of the Unique Selling Points (USPs) of the concept. Then the various sub-systems within the vehicle were developed; a systems integration approach was used to balance design, engineering and project (cost, weight and timing) compromises. The vehicle provides a flexible interior concept designed to support the active lifestyles of Gen Z that enables a broad range of use cases including stationary activities. The paper discusses the occupant packaging, seating, personalization and customization of the interior, power supply, infotainment, color selection, and interior lighting concepts which provide novel ways to support users in urban environments.
Kale, ManjilDiwan, RajatRenganathan Dinesh, FnuBenton, MarkMuralidharan, PrasanthVenhovens, PaulBrooks, JohnellLiu, ChunKaiJacobs, JuliePayne, Craig
Reducing vehicle fuel consumption has become one of the most important issues in recent years in connection with environmental concerns such as global warming. Therefore, in the vehicle development process, attention has been focused on reducing aerodynamic drag as a way of improving fuel economy. When considering environmental issues, the development of vehicle aerodynamics must take into account real-world driving conditions. A crosswind is one of the representative conditions. It is well known that drag changes in a crosswind compared with a condition without a crosswind, and that the change depends on the vehicle shape. It is generally considered that the influence of a crosswind is relatively small since drag accounts for a small proportion of the total running resistance. However, for electric vehicles, the energy loss of the drive train is smaller than that of an internal combustion engine (ICE) vehicle. Therefore, drag represents a relatively larger proportion of the total running resistance. That makes it necessary to consider the influence of a crosswind in order to reduce electric power consumption in real-world driving. In this study, representative test conditions taking into account a crosswind were proposed for wind tunnel tests based on an analysis of U.S. market data such as vehicle speeds and wind speeds. The test results made clear the mechanism causing drag to change under the representative test conditions. The representative test conditions were calculated by the Monte Carlo method using real-world driving data. It was found that a yaw angle of 4 degrees is the most influential yaw angle. The mechanism causing drag to change was studied in wind tunnel tests. The factors affecting the change in drag were identified, and measures for reducing that change were examined.
Kawamata, HideyukiKuroda, SatoruTanaka, ShingoOshima, Munehiko
The Deep Orange framework is an integral part of the graduate automotive engineering education at Clemson University International Center for Automotive Research (CU-ICAR). The initiative was developed to immerse students into the world of an OEM. For the sixth generation of Deep Orange, the goal was to develop an urban utility/activity vehicle for the year 2020. The objective of this paper is to describe the development and implementation of a dual-purpose powertrain system enabling vehicle propulsion as well as stationary activities of the Deep Orange 6 vehicle concept. AutoPacific data were first examined to define personas on the basis of their demographics and psychographics. The resulting market research, benchmarking, and brand essence studies were then converted to consumer needs and wants, to establish vehicle target and subsystem requirement, which formed the foundation of the Unique Selling Points (USPs) of the concept. The Deep Orange 6 vehicle contains a very low floor supporting the active lifestyles of the target consumers through re-configurability of the interior, which enables a broad range of use cases including invehicle stationary activities. This concept required the development of a shallow dual-purpose electrical energy storage and power conversion system for the purpose of propelling the vehicle as well as powering various 110 VAC in-vehicle stationary activities for an extended period of time, at low noise levels and with zero local emissions. The paper explains simulation based sub-system sizing and component selection to meet the overall vehicle performance and fuel economy targets. Furthermore, special attention will be paid to the development of a control logic keeping functional safety in mind especially related to the two modes of operation of the vehicle’s energy supply and power conversion system. The paper concludes with a description of the subsystem testing, including driveline and vehicle integration as part of the vehicle performance validation process.
Ivanco, AndrejMariappan Selvaraj, BalanMurali, KawshikNarayanan, ArjunSarkar, AvikSingh, AviralSoni, AkshayBenton, MarkMuralidharan, PrasanthBrooks, JohnellVenhovens, PaulPayne, Craig
The evaluation of perceived comfort inside a car during the early stages of the design process is still an open issue. Modern technologies like CAE (Computer Aided Engineering) and DHM (Digital Human Modeling) already offer several tools for a preventive evaluation of ergonomic parameters for car drivers using detailed CAD (Computer Aided Design) models of car interiors and by a MBS (multi-body-system) solver for evaluating movements and interactions. Such evaluations are, nonetheless, not sufficient because the subjectivity of comfort perception is due to factors that are very difficult to evaluate in the early stage of design. Physical prototypes are needed and these are often too expensive to be realized. In the last 30 years, several researchers have tried to develop methods to objectivize comfort performance but most of these methods are based on questionnaires, market research, or physiological and biomechanical analyses, and need devices or interactions that modify perceived comfort. Recently, the authors of this study developed a software tool named CaMAN® for postural comfort evaluations of upper limbs. The software employs a static analysis of human joints in a working environment (the car cockpit is assumed to be a working environment). Some software, like AnyBody™, allows evaluations of the muscular efforts made during body actions. In the literature, it is possible to find several papers such as Na et al. [26] and Telfer et al. [40] that demonstrate a correlation between muscular effort and perceived comfort. Empirical evidence suggests that better comfort is related to lower muscular activity. This paper shows the results obtained from numerical and experimental analyses using AnyBody™ and CaMAN®. Simulations of the static and dynamic behaviors of a car driver using a steering wheel are performed. The results show the differences between preventive analyses of perceived comfort that are made with and without an applied load for a subject in the fiftieth percentile. This paper shows the results obtained from numerical and experimental analyses using AnyBody™ and CaMAN®. Simulations of the static and dynamic behaviors of a car driver using a steering wheel are performed. The results show the differences between preventive analyses of perceived comfort that are made with and without an applied load for a subject in the fiftieth percentile.
Trapanese, SalvatoreNaddeo, AlessandroCappetti, Nicola
Items per page:
1 – 50 of 155