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Training / Education

Applied Brake Controls ABS, TCS, and ESC

2020-01-27
Experience the vehicle dynamic enhancements afforded by anti-lock brakes (ABS), traction control (TCS), and electronic stability control (ESC) with this highly interactive two-day seminar. Designed to get you out of the classroom and on to the test track, a total of six 60-minute structured learning experiences behind the wheel will vividly illustrate the benefits, limitations, and ultimate compromises that must be made when designing and implementing modern brake control systems.
Technical Paper

A new appraisal of the thermomechanical behaviour of a hybrid composite brake disc in a formula vehicle

2019-11-21
2019-28-2572
A new appraisal of the thermomechanical behaviour of a hybrid composite brake disc in a formula vehicle Research Objective This paper presents a hybrid composite brake disc with reduced Un Sprung Weight clearing thermal and structural analysis in a formula vehicle.Main purpose of this study is to analyse thermomechanical behaviour of composite brake disc for a formula vehicle under severe braking conditions. Methodology In the disk brake system, the disc is a major part of a device used for slowing or stopping the rotation of a wheel. Repetitive braking of the vehicle leads to heat generation during each braking condition. Based on the practical understanding the brake disc was remodelled with unique slotting patterns and grooves, using the selected aluminium alloy of (AA8081) with reinforcement particle of Silicon carbide (SiC) and Graphite (Gr) as a hybrid composite material for this proposed work.
Technical Paper

A novel approach on range prediction of a hydrogen fuel cell electric truck

2019-11-21
2019-28-2514
A novel approach on range prediction of a hydrogen fuel cell electric truck C.Venkatesh - Manager - Product Development, Sustainable Mobility & Advanced Technologies Abstract: A novel approach on range prediction of a hydrogen fuel cell electric vehicle Abstract: Today's growing commercial vehicle population creates a demand for fossil fuel surplus requirement and develops highly polluted urban cities in the world. Hence addressing both factors are very much essential. Battery electric vehicles are with limited vehicle range and higher charging time. So it is not suitable for the long-haul application. Hence the hydrogen fuel cell based electric vehicles are the future of the commercial electric vehicle to achieve long range, zero emission and alternate for reducing fossil fuels requirement. The hydrogen fuel-cell electric vehicle range, it means the total distance covered by the vehicle in a single filling of hydrogen into the onboard cylinders.
Technical Paper

Autonomous Car in India

2019-11-21
2019-28-2522
Automation is expanding in every possible direction and it was only time before it reached the Automobile sector. There has been tremendous traction towards autonomous cars since last 2-3 yrs as a probable solution to reduce accidents and promote safe and comfortable commute. Many companies have expressed their interest in developing some part(s) of it and when would all of this culminate resulting in a fully autonomous car. But as every coin has two aspects so same does automation. This paper covers the future of autonomous cars from Indian perspective, covering possible challenges, complex use cases, advantages, technology enablers, economy outlook etc. India has the dubious honor of ranking first in road deaths in the world at present & accounts for 10 percent of global road accidents with more than 1.46 lakh fatalities annually.
Technical Paper

A Mathematical Approach to Determine Die Wear during Forging Process and Validation by Experimental Technique

2019-11-21
2019-28-2563
The automotive industry is constantly trying to develop cost effective, high strength and lightweight components to meet the emission and safety norms while remaining competitive in the market. Forging process plays an important role to produce most of the structural components in a vehicle. Precision forging technology is used to produce components with little or no flash leading to elimination of machining process after forging. The load acting on the dies during net or near net forging is very high and leads to wear in the die. In order to have a good die it is important that die wear which is an inevitable phenomenon in a bulk metal forming processes is predicted mathematically. In this study a review on the vast number of studies done in the area of wear and various predictive models is carried out.
Technical Paper

PMSM motor drive for Electric Vehicle applications

2019-11-21
2019-28-2475
To control air pollution in urban areas and to reduce carbon print in the cities, nowadays EV’s are preferred over IC engine vehicles. Earlier Electric vehicles used DC motor and Induction motors. But Brushless Permanent Magnet motors are preferred over Induction motor for EV’s due to their High Torque density, high-power density and highly efficiency. Prevalent Electric vehicles today have Brushless DC motors. Compared to BLDC, PMSM motor have smoother control and negligible torque ripplesThus, PMSM motor is preferred over BLDC for Electric Vehicle, because of its sinusoidal back emf which results in smoother control, and results into smoother and more comfortable driving experience to users. Methodology Sensor based field-oriented control (FOC) is implemented in 48 V 5kW Interior PMSM motor. . To start the Synchronous motor initial position of the rotor magnetic field should be known.
Technical Paper

Performance & efficiency Improvement of Electric Vehicle Power train

2019-11-21
2019-28-2483
Introduction: The advent of electric mobility is changing the conventional mobility techniques and their application in automobiles across all segments. This development comes with challenges ranging across varied sub -systems in a vehicle including Power Train, HVAC, Accessories, etc. Objective: This paper would concentrate on the Power train related sub systems & improvement of the same both in terms of Efficiency & Performance. Methodology: The electric power train consists of three major sub parts: 1. Motor Unit 2. Controller with Power electronics 3. Battery Pack with BMS We would concentrate on improving the overall efficiency and performance of all these subsystems while they perform in vehicle environment and work in tandem by deploying following techniques: a. Improved Regenerative Braking for converting vehicles Kinetic energy into electrical energy using specific algorithms and control techniques b.
Technical Paper

Design and Development of Industrial Automotive Battery Management system

2019-11-21
2019-28-2498
Battery operated vehicle need accurate management system because of its quick changes in State of charge (SOC) due to aggressive acceleration profiles and regenerative braking. Li-ion battery needs control over its operating area for its safe working. So, the main objective of the proposed system is to develop a BMS having algorithms to estimate accurate SOC, predict degradation parameters, balance individual cells, manage cell temperature, and provide safe area of operation defined by voltage and temperature. Proposed methodology uses Model-based Design approach wherein nonlinear behavior of battery is modeled as Equivalent Circuit Model to compute the SOC and degradation effect on battery to decide the end of life of battery, also performing inductive Active balancing on cells to equalize the charge. proposed algorithms communicate with the vehicle ECU through CAN to assist the driver for runtime estimation, time for battery swapping, Alerts.
Technical Paper

ELECTRIC BICYCLE WITH REGENERATIVE BRAKING SYSTEM

2019-11-21
2019-28-2490
One of the significant challenges in the present scenario is the depletion of fossil fuels. As the use of conventional fuel is increasing day by day, it will lead to the complete depletion of fossil fuel in the future. So, an alternate solution to this problem is the use of electric vehicles which is independent of the dependence on fossil fuels. Electric vehicles (EVs) use batteries to power them and are electric motor driven. One advantage of using these electric vehicles is that they are pollution free and smokeless. One of the critical limitations of these electric vehicles is the low driving range per charge. The main proposal of this paper is the implementation of a regenerative braking system (RBS) which helps in recovering the kinetic energy that gets wasted during braking. RBS will be very useful in hilly terrain areas where much potential energy can get recovered while moving down the hill.
Technical Paper

Combi Brake System (CBS) design and tuning on an electric two wheeler for cornering maneuver

2019-11-21
2019-28-2399
To reduce the number of traffic accidents, most of the governments have mandated to include Combi Brake System (CBS) or Anti-lock Braking System (ABS) in two wheelers. While most of the homologation requirements for CBS can be fulfilled by straight line motion, CBS behavior is crucial while cornering for safety aspects. When vehicle is in cornering motion, the lateral forces generated at the tire decreases the effective longitudinal force available, which implies lesser braking force at tire. This paper represents a design methodology for tuning CBS for various critical scenarios mainly during cornering maneuver. A detailed study has been made at various combination of vehicle lean angle, vehicle speed and friction coefficient of road in straight line and cornering maneuver to effectively decide on front to rear brake force distribution to avoid either of the tires’ lock-up.
Technical Paper

Multi body dynamic simulation of tyre traction trailer

2019-11-21
2019-28-2430
Tyre Traction Trailer is a device designed to find the Peak Brake co-efficient of C2 and C3 tyre as per ECE R117. The trailer is towed by the truck and is braked suddenly to evaluate braking co-efficient of specimen tyre. It is a single wheel trailer equipped with load cell to capture tire loads (Normal and longitudinal)while braking. Traction Trailer is modelled in MSC Adams and rigid body simulation is carried out for static stability of the system. Dynamic simulations were performed to understand locking of wheels during braking. Body frame was further modelled as flex body to perform structural analysis of the frame. The paper contains stress and deformation plots of trailer Structure under various loading conditions, change in Centre of gravity, weight transfer and forces on springs during braking and cornering, plots of tractive and normal load on tyre during braking.
Technical Paper

TORQUE VECTORING DIFFERENTIAL SYSTEM FOR ELECTRIC VEHICLE

2019-11-21
2019-28-2485
Abstract The electrification of conventional internal combustion engine vehicle is a need of today’s advanced world to reduce the dependency of the transportation sector on the oil and gases. It can be achieved by replacing the engine by an electric motor which is powerful enough to provide required torque. The important requirement for a vehicle to drive in the hilly region with steep corners is proper torque distribution on each wheel which is taken care by the differential system. When the friction between road and wheels are different from left to right, then the wheel with low friction contact will lose its traction on the road. These situations are unfavorable for driving a vehicle on off-road and extrema conditions like driving in muddy roads or on the ice. These problems can be overcome by providing individual power supply system to separate wheels.
Technical Paper

Impact of Vehicle Electrification on Brake Design

2019-11-21
2019-28-2499
Electric vehicles have come full circle from being primary vehicle type in 19th century (much before IC powered vehicles) to 21st century where major stake holders in mobility have announced plans towards vehicle electrification. Apart from battery & powertrain system, braking system is area which will undergo major changes because of vehicle electrification. But Why? Major keywords are regenerative braking, increased vehicle weight, no or insufficient vacuum from engine and silent powertrains. This paper tries to outline potential impact on hydraulic brake system & its component design for M1 and N1 category of four wheelers with advent of vehicle electrification. Needless to say extent of change will vary depending upon extent of electrification and extent of recuperation during regenerative braking. Extent of electrification depends upon whether vehicle is range extender type hybrid vehicle, plug in hybrid vehicle, battery electric vehicle, fuel cell vehicle etc.
Technical Paper

FABRICATION AND WEAR CHARACTERISTICS BASALT FIBER REINFORCED POLYPROPYLENE MATRIX COMPOSITES

2019-11-21
2019-28-2570
Generally brake pads are manufacturing by use of asbestos materials, these materials are chemically harmful and toxic, affects human health. The present investigation fabricates polypropylene composites with mixing constant volume [5 Vol.%] of alumina nano particles and different volume percentages [0%, 5%, 10% & 15%] of basalt fibre by hand layup compression technique. The wear characteristics of polypropylene matrix composites were tested by dry sliding condition using pin on disc apparatus configuration with hardened steel counter-face at elevated temperature. The load was applied 30N to 70N with the interval of 20N and varying of sliding speed 300 rpm to 900rpm with the interval of 300rpm for the time period of 0-180 sec. The wear rate was decreases with addition of alumina nano particle and also increases the frictional force for the effect of basalt fibre content present in the composites. The co-efficient of friction was increases from 0.1 to 0.66 under normal loading condition.
Technical Paper

Ride- Comfort Analysis for Commercial Truck using MATLAB Simulink.

2019-11-21
2019-28-2428
Ride Comfort forms a core design aspect for suspension and is to be considered as primary requirement for vehicle performance in terms of drivability and uptime of passenger. Maintaining a balance between ride comfort and handling poses a major challenge to finalize the suspension specifications. The objective of this project it to perform ride- comfort analysis for a commercial truck using MATLAB Simulink. First, benchmarking was carried out on a 4x2 commercial truck and the physical parameters were obtained. Further, a mathematical model is developed using MATLAB Simulink R2015a and acceleration- time data is collected. An experimentation was carried out on the truck at speeds of 20 kmph, 30 kmph, 40 kmph and 50 kmph over a single hump to obtain actual acceleration time domain data. The model is then correlated with actual test over a single hump. This is followed by running the vehicle on Class A, B & C road profiles to account for random vibrations.
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