What is the braking principle of the handbrake?

[KiraAnn]

The braking principle of the handbrake: 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 (though drum brakes also exist). The pulling force is transmitted via a steel cable to achieve parking braking. Below are some precautions for using the handbrake: 1. Mechanical handbrake: Avoid pulling too tightly. For the most common mechanical handbrake, first, avoid pulling it too hard every time you park, especially not pulling it to the limit. Overstretching the metal or keeping it stretched for too long can accelerate deformation, leading to faster wear of the handbrake cable. The correct method is to pull the handbrake until the rear wheels lock, then lift it 1-2 notches further to ensure the car doesn't roll. 2. For automatic transmission cars: Engage the handbrake before shifting to P. For automatic transmission cars equipped with an electronic handbrake, when parking on a slope, always engage the handbrake to secure the car first, then shift the transmission into P to reduce the burden on the transmission and prevent the P lock from jamming, which could make it difficult to disengage.