Saturday 19 February 2011

.:: History ::.



     In 1987, Mercedes-Benz and BMW were the earliest company that start the use of ESC, their first traction control systems. Traction control works by applying individual wheel braking and throttle to keep traction while accelerating but, unlike the ESC, it is not designed to aid in steering.


     TCL (1990), the system has since evolved into Mitsubishi's modern Active Skid and Traction Control (ASTC) system which help the driver maintain the intended path through a corner with an onboard computer monitored several vehicle operating parameters through the use of various sensors.


     When too much throttle has been used, while taking a curve, engine output and braking are automatically regulated to ensure the proper path through a curve and to provide the proper amount of traction under various road surface conditions. While conventional traction control systems at the time featured only a slip control function, Mitsubishi developed a new version of TCL system which had a preventive (active) safety feature. 


     With the improvement on the course tracing performance which it will  automatically adjusting the traction force, thereby restraining the development of excessive lateral acceleration, while turning. 


     BMW and Robert Bosch Gmbh and Continental Automotive System developed a system to reduce engine to prevant loss of controland applied it to the BMW model(1992).From 1987 to 1992, Mercedes-Benz and Robert Bosch GmbH co-developed a system called Elektronisches Stabilitätsprogramm (Ger. "Electronic Stability Programme" trademarked as ESP) a lateral slippage control system, the electronic stability control (ESC). 


     GM (General Motor) worked with Delphi Corporation and come out with its version of ESC called "StabiliTrak" in 1997 for selected Cadillac models. Later ,the StabiliTrak system was made standard equipment on all GM SUVs and vans sold in the U.S. and Canada by 2007 except for certain commercial and fleet vehicles. While the "StabiliTrak" name is used on most General Motors vehicles for the U.S. market, the "Electronic Stability Control" identity is used for GM overseas brands, such as Opel, Holden and Saab, except in the case of Saab's 9-7X which also uses the "StabiliTrak" name. 


     Ford's version of ESC, called AdvanceTrac, was launched in the year 2000. Ford later added Roll Stability Control to AdvanceTrac which was first introduced in Volvo XC90(2003) when Volvo Cars was fully owned by Ford and it is now being implemented in many Ford vehicles.

.:: Definition ::.

     Electronic stability control (ESC) is a computerized technology that improves safety of a vehicle's stability by detecting and minimizing skids. When ESC detects  malfunctions of steering control,  it will automatically applies the brakes that will help to "steer" the vehicle where the driver intends to go. Braking is automatically applied to wheels individually, such as the outer front wheel to counter oversteer or the inner rear wheel to counter understeer. 


     Some ESC systems reduce engine power until control is regained. ESC can`t improve a vehicle`s cornering performance; instead, it helps to minimize the loss of control. According to IIHS (Insurance Institute for Highway Safety) and NHTSA (National Highway Traffic Safety Administration), one-third of fatal accidents could have been prevented by the technology.

With ECS and Without ESC
 http://blog.carlist.my/2010/06/reviews/modern-car-features…this-week’s-topic-–-‘electronic-stability-system’/