What are the structures of electronic parking brakes?
2 Answers
Electronic parking brakes consist of cable-actuated electronic parking brakes and integrated caliper electronic parking brakes. Commonly known as electronic parking brakes, they integrate temporary braking during driving with long-term parking braking functions, utilizing electronic control to achieve parking braking. The functions of electronic parking brakes are: 1. Eliminating the need for drivers to maintain prolonged braking when the vehicle is stationary; 2. Preventing unnecessary vehicle sliding; 3. Facilitating smooth starts on slopes; 4. Reducing the burden on the driver's right foot and hand during traffic congestion.
The electronic parking brake is quite ingeniously designed, and I've disassembled it a few times. At its core is a small electric motor, which amplifies power through a planetary gear reduction mechanism, then uses a push rod or cable to press the brake pads. The control part is the smartest—an electronic module determines whether the car is properly parked using speed sensors and tilt sensors. When you press the button, the signal first goes to the module, which then commands the motor to rotate. Some models can even automatically increase braking force on slopes, making it much more reliable than mechanical handbrakes, especially in winter when the lever won't freeze. The entire system is interconnected with ABS and ESP, locking the wheels firmly when parked.
