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Antirodent Corrugated tube Development for Fuel tube Rat bite

  • Technical Paper
  • 2019-28-2536
To be published on 2019-11-21 by SAE International in United States
Rat damages in automobiles/food crops/house hold things are extensive in India. Cases of Rat damages to Car Fuel tubes (plastic) and subsequent fuel leak problems are increasing in India.To protect the Fuel tube from rat bite , a more robust and easy assemble protection method is discussed. Hence Antirodent corrugated tubes are considered to protect fuel tube from rat bite. Antirodent masterbatch (3% ) were added to the corrugated tubes and lab test were done in CAZRI. Antirodent corrugated tubes tested with 2 different species showed better results compared to standard corrugated tubes

Aerodynamic analysis of electric passenger car using wind turbine concept at front end

ARAI Academy-Snehil Mendiratta, Sugat Sharma
Automotive Research Association of India-Mohammad Rafiq Agrewale, Kamalkishore Vora
  • Technical Paper
  • 2019-28-2396
To be published on 2019-11-21 by SAE International in United States
Electric passenger car with floor battery usually have its front boot space empty and the space is used as additional luggage storage. This space can be utilized to capture the wind energy and generate electricity. Based on this, the objective of the work is to perform an aerodynamic analysis of an electric passenger car using wind turbine placed at the front. Active front grill shutters will be used to optimize the aerodynamic drag at different vehicle speeds. Initially the aerodynamic analysis of a basic electric car model is performed and then it is validated with the scaled model by using wind tunnel testing. The modified model is designed with wind turbines and with add-on-devices - vortex generator, spoiler and diffuser and then simulated. Based on the simulation carried out in ANSYS Fluent, our scaled down optimized model is fabricated and tested in Wind Tunnel for validation. A successful reduction in the Drag Coefficient by 5.9% is achieved.

Determining the State Of Health [SOH] of Li Ion cell

Sushant Manohar Mutagekar
  • Technical Paper
  • 2019-28-2579
To be published on 2019-11-21 by SAE International in United States
“NuGen Mobility Summit-2019” Paper Title : Determining the State Of Health [SOH] of Li Ion cell Authors: Sushant Mutagekar, Ashok Jhunjhunwala, Prabhjot Kaur Objective Cells age with life. This aging is dependant on various factors like charging/discharging rates, DOD of operation and operating temperature. As the cell ages it undergoes power fade (ability to deliver required power at particular State of Charge [SOC]) and capacity fade (the charge storage capacity of cell). In an Electric Vehicle it is important to know what power shall be demanded from a battery irrespective of what its current SOC is and number of cycles it has undergone. With minimal accuracy and less computational power, it is difficult for a Battery Management System [BMS] to accurately determine SOH; the paper proposes a a precise model that may help. Methodology To understand different cells aging at different conditions, an experiment was setup to simulate various conditions of a cell. • Cycling: Cells of different form factors were cycled continuously at different ambient temperatures, different discharge rates and Depth of discharges. •…


Mahindra Research Valley-Rahul Lalwani, Saravanan N, Arunmozhi veeraputhiran, ILAVARASI D
  • Technical Paper
  • 2019-28-2581
To be published on 2019-11-21 by SAE International in United States
OBJECTIVE: Climate change is primary driver in the current discussions on CO2 reduction in the automotive industry. Current Type approval emissions tests (BS III, BS IV) covers only tailpipe emissions, however the emissions produced in upstream and downstream processes (e.g. Raw material sourcing, manufacturing, transportation, vehicle usage, recycle phases) are not considered in the evaluation. The objective of this project is to assess the environmental impact of the product considering all stages of the life cycle, understand the real opportunities to reduce environmental impact across the product life cycle. METHODOLOGY: As a part of environmental sustainability journey in business value chain, Life-cycle assessment (LCA) technique helps to understand the environmental impact categories. To measure overall impact, a cradle to grave approach helps to assess entire life cycle impact throughout various stages. LCA is a technique to assess environmental impacts associated with all the stages of a product's life from raw material extraction through materials processing, manufacture, distribution, use, repair & maintenance, disposal or recycling. A study was conducted on a passenger vehicle for life cycle…

Spring and damper tuning of an ATV to reducing transmissibility

ARAI Academy-Rajat Girish Kanade, Mohammad Rafiq Agrewale, Kamalkishore Vora
  • Technical Paper
  • 2019-28-2401
To be published on 2019-11-21 by SAE International in United States
The application in vehicle ride and handling has been mostly subjective or intuitive. There are several methods to improve vehicle stability and handling. One of the methods is suspension tuning. The objective of this work is to perform dynamical analysis of suspension by spring and damper tuning to reduce transmissibility for an all-terrain vehicle. A baseline spring rate data is used for tuning to provide better ride. The Fox air shock absorbers with progressive damping are used for testing. First the dynamics simulation is carried out by using ADAMS CAR tool. A detailed characteristic of the air shocks is obtained at various loading conditions by experimentation using test rig. Based on it, the simulation has been carried out for desired tuning parameters of spring and damper to improve stability. The speculated optimum setting is validated on an all-terrain vehicle (ATV) using ultrasonic sensors and accelerometers, by varying vehicle speed and bump heights to evaluate the transmissibility of the suspension. The acquired data shows behaviour of the suspension and the influence of the main parameters in…

Industry 4.0 in Agriculture

John Deere India Pvt, Ltd.-Vishal Eknath Kirve
  • Technical Paper
  • 2019-28-2442
To be published on 2019-11-21 by SAE International in United States
In recent times, there has been an enormous shift towards automation in Auto as well as Agriculture Industry. Farming is playing an important role in the survival of world. Currently, agricultural industry is facing several challenges. These challenges can be reduced or removed by using automation in the agricultural tools and techniques. Industry 4.0 is the industrial fourth revolution which focused on automations in manufacturing technologies such as cyber physical systems, Internet of Things, artificial intelligence and cloud and cognitive computing. The development and improvement of the connectivity between agricultural tools is leading to significant progress in the agricultural practices. Advancement and automation of the technologies with Internet of Things (IoT), replacing traditional agricultural methodologies which causes wide range of improvements in the fields. The main purpose of this paper is focused on the review of basic concept of Industry 4.0, the number of new tools and techniques used by smart agriculture for the improvement in the fields and the list of benefits of smart agricultural solutions. Smart Agriculture is using advanced technologies such as…

Aerodynamic analysis of commercial vehicle using active vortex generators concept

ARAI-Kamalkishore Vora
ARAI ACADEMY, PUNE-Saurabh Jayant kulkarni
  • Technical Paper
  • 2019-28-2409
To be published on 2019-11-21 by SAE International in United States
Any physical body being propelled through the air has drag associated with it. Drag will be created on the surface of the vehicle due to the flow separation at the rear end. In aerodynamics the flow separation can often result in increased drag particularly pressure drag, to delay the flow separation, the vortex generators are used on the roof end of the vehicle just before the point of flow separation. The objective of this project is to perform aerodynamic analysis of commercial vehicle using active vortex generators concept. First, the aerodynamic analysis of a baseline commercial vehicle model is performed and same is validated with the scaled model by using a wind tunnel test. Further analysis has been done by using active vortex generators concept with variation of angle of attacks for vehicle speed of 50, 70, 90 kmph. Also, analysis has been carried out for six different yaw angles. The simulation is carried out with the use of ANSYS Fluent. The simulation result shows the significant drag coefficient reduction of the commercial vehicle with…

Investigation of Transmissibility of an all-terrain vehicle with spring and damper tuning.

ARAI Academy-Rajat Girish Kanade, Mohammad Rafiq Agrewale, Kamalkishore Vora
  • Technical Paper
  • 2019-28-2423
To be published on 2019-11-21 by SAE International in United States
The application in ride and handling development has been mostly subjective or intuitive. Suspension settings are based on the opinions of experts. The product of this research will enable to quantify the performance of a suspension in terms of its ability to minimize the transmission of road irregularities to the chassis and achieve good mechanical grip with the road surface. This work presents a dynamical analysis of the transmissibility of an off-road vehicle suspension, developed in VIT Vellore for Baja SAE India competition. A baseline spring rates curve for ride is developed to provide a solid foundation to tune from. The shock absorbers used for testing are Fox Float Evol R air shock absorbers with progressive damping. A thorough data acquisition of the force curves for shocks from a test rig is done. A detailed characteristic of the air shocks is obtained at various loading conditions. The basic damping curve is modified towards the desired ideal nature with the data obtained. The speculated optimum setting is validated on the ATV vehicle with ultrasonic sensors and…

Correlation of Noise Emitted by vehicle on an External Pass-By Noise Track and Indoor Anechoic Chamber

International Centre For Automotive Tech.-Ikshit Shrivastava
  • Technical Paper
  • 2019-28-2425
To be published on 2019-11-21 by SAE International in United States
Ikshit Shrivastava1, Kiranpreet Singh2 1,2 International Centre for Automotive Technology (ICAT), Gurugram, India Introduction: Pass By Noise emitted by the vehicle is one of the most critical tests for certification is vehicle worldwide. There are a number of national and international regulations to define test procedure. Though the available tracks are constructed to meet the requirements of these test standards, but there are other external parameters viz. ambient temperature, barometric pressure, wind speed and its direction, affecting the measurements. These parameters are beyond the control of human and this contamination of test data results in longer test time to monitor atmospheric/ambient conditions and perform the test. Indoor pass-by noise testing is a comparatively new method of testing, which is yet to be evaluated for repeatability/correlation with conventional exterior pass-by noise testing. Objective: This paper aims to establish a correlation between exterior pass-by noise testing and indoor pass-by noise testing. This correlation will serve to establish a foundation for future developments in automobiles; and, evaluate the use of indoor pass-by noise testing as an acceptable alternative…

Inspection and Maintenance of In-Use Motor Vehicles – Mitigating Environmental impact

International Centre For Automotive Tech-Aditya Gautam
International Centre For Automotive Tech.-Vijayanta Ahuja
  • Technical Paper
  • 2019-28-2427
To be published on 2019-11-21 by SAE International in United States
The existing rule no. 62 of CMVR, 1989 applies to various commercial vehicles and yet is unable to provide a promising template to have a concise format which will cover all the motor vehicles and their different components with more precise equipment plus virtual testing along with proper management of time during the bulk inspection of all the vehicles. This paper will include all the technicalities and the different course of actions which must be taken into account for the proper implementation of the desired regulations on the designated concern. The idea behind this paper is to have a compact procedural document for the periodical inspection and maintenance of all the motor vehicles running on the Indian Roads that adhere to the basic safety concerns of other on-road vehicles, the pedestrians and the surroundings. Concluding the fact that there are various aspects of environmental degradation henceforth we start by picking one of the hazards trying to execute a method to resolve every respective issue on a micro level, thus eliminating maximum threats onto the environment.…