What is the function of the hold button in an automatic transmission car?

[DePaisley]

Automatic transmission car hold button is the automatic parking function. After the function is activated, in case of a brief temporary stop, the car can be stopped by the brake pedal. Temporary parking: When the vehicle is temporarily parked and needs to be restarted after a very short period of time, this type of parking is completed by the ESP-controlled brakes. The computer will use a series of sensors to measure the levelness of the vehicle body and the torque of the wheels, make a judgment on the tendency of the vehicle to move, and apply an appropriate braking force to the wheels to keep the vehicle stationary. Exceeding the time limit parking: When the temporary parking exceeds a certain time limit, the braking system will switch to mechanical rear-wheel parking (activating the electronic parking brake) to replace the previous four-wheel hydraulic braking. When the vehicle is about to move forward, the electronic system will detect the pressing force of the accelerator pedal and the travel of the clutch pedal in manual transmission models to determine whether to release the brake.