2. A computerized technology that improves
a vehicle's stability by detecting and
reducing loss of traction
3. A physical process in which a force is
transmitted across an interface between two
bodies through dry friction
The grip of a tyre on a road
4. Material composition of each surface
Macroscopic and microscopic texture
Normal force pressing contact surfaces
Contaminants at the material boundary, i.e. lubricants and adhesives
Relative motion of tractive surfaces - a sliding object has less traction
than a non-sliding object
Direction of traction - e.g., cornering, accelerating, and braking.
5. It allows for higher acceleration at cornering
without wheel slippage
Contact of wheels with ground increase
stability
6. First iteration in 1980 by BMW
Mercedes steps in, in 1992 with supplier Bosch
Toyota introduces Vehicle Stability Control (VSC) in
1995
General Motors begins introduces ESP in 1997
European Union makes ESP mandatory in 2009
12. It decides-
1. What wheel to brake or accelerate and to what
extent,
2. Whether engine torque is reduced and
3. Whether the gearbox control unit is activated on
vehicles with automatic gearbox.
14. Code Sensor name Location Function
J104
Control unit
Front right footwell
Processing,
monitoring,
commanding
G85
Steering angle
sensor
Between steering
column and wheel
Transfers steering
wheel angle to
control unit
G200
Lateral acceleration
sensor Below driver’s seat
Determines action
of lateral forces
on stability
G202 Yaw rate sensor Below driver’s seat Determines action
of torque
G201
Brake pressure
sensor
Connected to
hydraulic pump
Calculates wheel
braking forces
---- Button for ESP Dashboard Switch ESPon/off
15. ESC reduces crashes by 35%- National Highway
and Traffic Safety Administration, USA
Upto 10,000 fatal US crashes could be avoided
annually- US Institute for Highway Safety
Improved vehicle handling reduces skids and
rollovers
Induces rider confidence
16. Available in Indian cars even under 10 lac
rupees:
Ford Ecosport 1.5
Hyundai i20
Renault Duster
Hyundai Verna
Nissan Micra
17. ESP to be mandated in Japan, Korea,
Russia, and Turkey in the coming years
Developing of newer algorithms to tackle
problems like trailer sway, in the effect of
vehicle towing
19. Life saving technology
An aid to human, not a substitute to human
Safe driving habits are must
20. “Bosch InnoWaves”, News and Information for Customers of Bosch Automotive Technology OE
Sales & Marketing | Issue 20 | May 2014
“Electronic Stability Programme”, Self-study Programme no. 204, 840.2810.23.20, Volkswagen
Technologies
“Brief history of Electronic Stability System”,
http://www.safetyresearch.net/blog/articles/brief-history-electronic-stability-controls-and-their-
applications
“Bosch predicts acceptance of ESP in Indian Vehicles” http://www.autocarpro.in/news-
international/bosch-acceptance-esp-indian-vehicle-growing-percent-2021-6715
"Real world crash evaluation of vehicle stability control (VSC) technology", G. Bahouth.
"The Effectiveness of ESC (Electronic Stability Control) in Reducing Real Life Crashes and
Injuries", Anders Lie, Claes Tingvall, Maria Krafft, and Anders Kullgren, of the 19th Enhanced
Safety of Vehicles Conference, 2005
The Greatest Advance in Safety Since Seatbelts, retrieved 2007-12-28
"Traction Control System for Improved Driving Safety", SAE Technical Papers
Notes de l'éditeur
For low-friction surfaces, such as off-road or ice, traction can be increased by using traction devices that partially penetrate the surface; these devices use the shear strength of the underlying surface rather than relying solely on dry friction (e.g., aggressive off-road tread or snow chains)