What does the hold button in a car mean?

[SanJoy]

The hold button in a car is an intelligent electronic handbrake, which belongs to the braking system function. It automatically engages the handbrake to ensure safety after the vehicle stops, and lightly pressing the accelerator will automatically release the handbrake effect. The functions of the hold button are: 1. The vehicle will not roll away; 2. It is suitable for uphill and downhill slopes or frequent starting and stopping. The working principle of the intelligent electronic handbrake is: the controller provides accurate parking force through the slope sensor. When starting, the parking control unit calculates the information provided by the clutch distance sensor, clutch engagement speed sensor, and accelerator pedal sensor. When the driving force is greater than the driving resistance, the parking brake is automatically released, allowing the car to start smoothly.