How does the handbrake (parking brake) work?

Hand brake (parking device) is divided into mechanical and electronic.

The manipulator brake is connected with the brake caliper of the rear wheel through a steel wire or similar mechanism. After the handbrake is pulled, the caliper presses the brake pad to realize the parking function.

The electronic handbrake links the brake calipers of the rear wheels by turning on the parking switch, motor-driven steel wire or similar mechanism, and realizes the parking function by pressing the brake pads with the calipers.

Extended data:

When parking in extremely cold weather, the following procedures should be followed:

1) Tighten the parking brake.

2) Make the gear lever of the manual transmission car in the position of 1 or "R" (reverse gear); Put the shift lever of an automatic transmission car in the "P" position.

3) Turn off the engine, get off and put a plug under the wheel.

4) Release the parking brake.

When you return to the parking position, be sure to pull the parking brake first and then unplug it.

References:

Baidu encyclopedia-parking brake