How Does the Handbrake Work?
2 Answers
The working principle of the handbrake is: 1. Mechanical handbrake: It operates through a steel cable or similar mechanism connected to the rear wheel brake calipers. When the handbrake is pulled, the calipers press against the brake pads, achieving the parking function. 2. Electronic handbrake: By activating the parking switch, an electric motor drives the steel cable or similar mechanism connected to the rear wheel brake calipers, pressing the calipers against the brake pads to achieve the parking function. The handbrake is an extremely important component of the vehicle's braking system. Proper use of the handbrake can effectively prevent the vehicle from rolling and reduce the danger caused by rolling when parked. The functions of the handbrake are: 1. When parking, pulling the handbrake keeps the vehicle stationary and prevents it from rolling downhill. 2. During turns while driving, pulling the handbrake can create a drifting effect. 3. In emergencies, the handbrake can be used as a brake.
I've been into car modifications for years, and the handbrake actually relies on a steel cable to transmit force. When you pull the lever next to the driver's seat, it tightens the metal wire connected to the rear wheels, pressing the brake pads firmly against the brake discs. This purely mechanical design is the most reliable—it can lock the rear wheels even if the car loses all electrical power. I often test handbrake performance on hilly roads and find that the cable tends to stretch over time, requiring regular tension adjustments. Here's a handy tip: in winter, lightly press the foot brake before pulling the handbrake to prevent the pads and discs from freezing together. Remember, never yank the handbrake abruptly at high speeds—sudden rear-wheel lockup could cause a skid or loss of control.
