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Automobile Technology Technology Library

ASC (Active Stability Control)

ASC helps drivers maintain control in adverse weather conditions and during emergency maneuvers.

When the system detects that proper grip cannot be maintained at each tire while driving on slippery road surfaces or due to sudden steering wheel input, braking force is applied at one or more wheels and engine output is automatically adjusted to help the driver maintain control. In addition, sensors monitor the tire traction and work with the anti-lock braking system (ABS) to counteract slipping on wet/snowy roads.

Illustration shows right rear and left front wheels on slippery surface.(4WD vehicle)

Illustration shows right rear and left front wheels on slippery surface.(4WD vehicle)

Illustration of Stability control Function when Cornering

Illustration of Stability control Function when Cornering

ASC limits during Emergency Avoidance Maneuver

ASC limits during Emergency Avoidance Maneuver

ASC System Diagram

ASC System Diagram

‚óŹ ASC can help a driver maintain control in adverse conditions and during emergency maneuvers. ASC, however, has limits and cannot help a driver maintain traction and control of the vehicle in all circumstances. It is the responsibility of every driver to drive carefully, taking into account the traffic, road and environmental conditions.

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