Vespa asr is always involved.

Vespaasr is always involved for the following reasons.

By default, it is open. When the ASROFF button is pressed and the button lights up, ASR is forced to close.

ASR, acceleration slip adjustment of driving (wheel). Belonging to an automobile active safety device. Also known as traction control system, it can prevent vehicles, especially high-powered vehicles, from slipping when starting and accelerating, thus maintaining the stability of vehicle driving direction.

The function of ASR: Its main purpose is to prevent the driving wheels of automobiles from slipping during acceleration, especially on special roads with low friction such as rain, snow, hail and road icing, and to control the slip rate of automobiles during acceleration within a certain range, so as to prevent the driving wheels from slipping quickly.

The principle of ASR: When the driving wheel slips, ASR judges that the driving wheel slips by comparing the speed of the wheels. The electronic system automatically and immediately reduces the throttle intake and engine speed, thus reducing the power output and braking the slipping driving wheels.