What does ASR mean in cars?
2 Answers
ASR stands for Acceleration-Slip-Regulation, also known as the Traction Control System. Here is relevant information: 1. ASR is a slip control system adopted after ABS, serving as a further development and important supplement to ABS functionality. The electronic controller and brake pressure regulator in ASR can be shared with ABS, so ASR and ABS are often combined to form an Anti-lock Braking System and Acceleration Slip Regulation (ABS/ASR) system. 2. ASR and ABS share many similarities in working principles, hence they are frequently used together to form an ABS/ASR system with anti-lock braking and drive wheel slip control functions. This system mainly consists of wheel speed sensors, ABS/ASR-ECU, ABS actuator, ASR actuator, sub-throttle control stepper motor, and main and sub-throttle position sensors.
When I first started driving, I didn't understand what ASR was either. It wasn't until I went on a long-distance trip with an experienced mechanic that I figured it out. The full name is Anti-Slip Regulation system, specifically designed to deal with wheel slippage. Especially when accelerating in rain or snow, if the system detects a wheel spinning out of control, it immediately cuts throttle and reduces torque, while applying individual braking to the slipping wheel. Last time I drove across a frosty bridge, I felt the rear wheels about to lose traction, but the yellow car-with-arrow light on the dashboard flashed a few times and the car stabilized itself. I recommend new drivers not to turn off this function casually - remember to disable ESP but keep ASR active when climbing snowy slopes for best performance.
