ELECTRONIC STABILITY CONTROL: REVIEW OF RESEARCH AND REGULATIONS
Electronic Stability Control
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Transcript of Electronic Stability Control
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ELECTRONIC STABILITY CONTROL
BY-
SHRADDHA SANGOLE
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INTRODUCTION
Use of ABS and TCS Bosch, Mercedes-Benz, BMW Use of high-tech sensors Computerized technology that improves the safety Critical situations Need
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SPECIFIC OBJECTIVES
Improve vehicle stability Support driver Improve handling behavior Reduce vehicle spin Consumer benefits
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ELECTRONIC STABILITY CONTROL Direct extension of ABS and TCS It goes by many names Understeer and oversteer ABS- prevents locking of wheels TCS is exactly opposite
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COMPONENTS OF STABILITY CONTROL SYSTEM
WHEEL SPEED SENSOR STEERING WHEEL ANGLE SENSOR
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YAW RATE SENSOR HYDRAULIC SYSTEM
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ELECTRONIC CONTROL UNIT
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MECHANISM OF STABILITY CONTROL
Basically two mechanisms: ABS TCS
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ANTILOCK BRAKING SYSTEM Allows the wheel to maintain tractive contact Decreases and increases stopping distance Also known as CAB Inclusions of ABS- ECU, speed sensor, valves, pump, steering
wheel sensor Cornering brake control (CBC)
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Mechanism of ABS:
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TRACTION CONTROL SYSTEM
Also known as ASR Secondary function of ABS Prevents loss of traction Shares electro hydraulic brake actuator and wheel speed
sensor, ABS ECU
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Mechanism of TCS:
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Use of traction control In road cars In race cars
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COMBINATION OF TRC AND ABS IN STABILITY CONTROL
TRC,ABS- a system of electronic control Engine torque control in ESC Engine torque and brake control- rear wheel drive
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ALGORITHM
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Effectiveness of ESC
Highly effective NHTSA studies in 2004 NHTSA concluded – ESC reduces crashes by 35% SUVs with ESC involved 67% less than without ESC
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IIHS June 2006 studies – 10,000 fatal accidents can be avoided
Studies show that- Reduces crashes by 43% Fatal single-vehicle crashes by 56% Fatal single-vehicle rollovers by 77-80%
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COMPARISON OF ESC EQUIPPED CARS WITH CONVENTIONAL CARS
Expands functionality Passenger safety increased Without ESC and with ESC Understeering and oversteering Safety/cost ratio Market demand
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FUTURE SCOPE
Market demand Customer request Increase driving safety Car stability in road traffic NHTSA
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CONCLUSION
Increase in cost of cars Market expansion Contributes to drive safely
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THANK YOU !