Driving wheel drive control system (ASR) is a component of the electronic dynamic stabilization system (ESP). Under adverse road conditions, the drive wheel drive control system (ASR) significantly facilitates, or only thanks to it, it generally becomes possible to start, accelerate and move uphill.
ASR works in automatic mode - i.e. without the participation of the driver. With the help of ABS sensors, the device controls the speed of the drive wheels. When the wheels spin, the engine speed is reduced and thus the traction force is adjusted to the road conditions. The device operates in the entire speed range.
ASR works together with ABS. If the ABS is faulty, the ASR will not work either.
Note. A condition for the smooth operation of the ASR is the installation of the same type of tires on all four wheels of the vehicle. Tires that are not the same can lead to an undesirable reduction in engine power.
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