What does the handbrake in a car mean?

[CharlesFitz]

Handbrake is an auxiliary braking device that, when engaged after parking, prevents the vehicle from rolling. Introduction to Handbrake: The professional term for handbrake is auxiliary brake. Unlike the principle of the main brake, it uses a steel cable connected to the rear brake shoes to apply braking force to the vehicle. Prolonged use of the handbrake can cause plastic deformation of the steel cable. Since this deformation is irreversible, long-term use will reduce its effectiveness, and the handbrake's travel will also increase. Handbrake Principle: For small cars, some handbrakes are located behind the transmission, connected to the driveshaft, where there is a brake disc similar to a disc brake. The pulling force is transmitted there through the cable to achieve parking braking.