ASR makes it easier to move from standstill in conditions with poor surface grip. For today’s typical high-torque engines, a form of wheel slip regulation or traction control (ASR) can increase both comfort and safety, particularly on surfaces with differing coefficients or on slippery roads. It makes smooth starts and acceleration possible through all speed ranges without wheel-spin or fishtailing.
ASR only operates in conjunction with uses components of the anti-lock braking system (ABS). If one wheel suddenly begins to rotate faster than the others (slip), ASR intervenes in the engine management system and reduces power until the wheel stops spinning. ASR improves traction and can help the driver maintain control even if the limit of adhesion is inadvertently reached while cornering.
