What does ASR in cars refer to?

[McLilliana]

ASR in cars refers to the Anti-Slip Regulation system, also known as the Traction Control System. Its function is to prevent wheel slippage during vehicle acceleration or starting, thereby maintaining directional stability. While the now-common ABS prevents wheel lock-up and skidding during braking, ASR specifically prevents skidding caused by drive wheel slippage during acceleration - this being the key difference between the two systems. ASR serves two main purposes: improving traction and maintaining driving stability. On slippery surfaces, vehicles without ASR may experience drive wheel slippage during acceleration, with rear-wheel-drive vehicles prone to fishtailing and front-wheel-drive vehicles susceptible to loss of directional control.