Is the Braking System Hand Brake or Foot Brake?
1 Answers
The braking system includes the foot brake and the hand brake, with the hand brake being used for emergency braking. Hand Brake: The hand brake is an auxiliary braking device that uses the lever principle to pull the brake cable, locking the rear wheel brake shoes or calipers to brake the vehicle, meaning it only brakes the rear wheels. Foot Brake: The foot brake is the service brake, utilizing a hydraulic system where the brake master cylinder applies pressure (via foot pedal) to the brake pads on all four wheel hubs, creating friction against the hubs to achieve braking. Differences: The hand brake is a purely mechanical braking system, independent of the engine, with a low probability of failure. It serves as a backup to the hydraulic foot brake, acting as the last line of defense in case of hydraulic system failure. During emergency braking, using both the hand brake and foot brake simultaneously can cause the rear wheels to lock up. At high speeds, locked rear wheels can easily lead to skidding and loss of control. In terms of braking effectiveness, the best braking state is achieved when the wheels are locked.