Which Parts Do the Handbrake and Footbrake Control Respectively?
3 Answers
The handbrake of a vehicle controls the two rear wheels. By braking these two wheels, it prevents the vehicle from rolling when stationary or waiting at a red light. The footbrake controls the braking of all four wheels, allowing the driver to press the footbrake pedal in emergency situations to smoothly decelerate the vehicle. Since it involves braking all four wheels, there is no risk of fishtailing or uneven braking during deceleration. Differences in the usage nature of the two brakes: The handbrake is the vehicle's parking brake system, while the footbrake is the vehicle's service brake system. The handbrake uses a steel cable to pull the brake calipers of the rear wheels, thereby braking the vehicle. The footbrake operates via a hydraulic brake pump, transmitting pressure through pipelines to the brake discs of all four wheels, enabling the vehicle to decelerate or come to a stop. Correct usage methods for the handbrake and footbrake: Handbrake usage method: Pull the handbrake until the rear wheels lock, then lift it 1-2 notches further to ensure the car does not slip. Footbrake usage method: Parking on flat ground: After the vehicle stops, press the brake, shift the gear to P, then press the footbrake and release the brake. Parking on a slope: After the vehicle stops, press the brake, first press the footbrake, then shift to P to prevent the vehicle from rolling. Precautions when using the handbrake and footbrake: When using the handbrake, avoid pulling it too hard every time, as excessive or prolonged stretching of the metal can accelerate deformation, reducing braking effectiveness. When using the footbrake, also avoid pressing too hard, as excessive force can cause the footbrake to be pressed too deeply, accelerating wear or even breakage of the handbrake cable.
I've been driving for 40 years and fully understand the importance of braking systems. The foot brake is that large pedal we usually step on—it controls all the wheels of the entire vehicle, whether front or rear, allowing rapid deceleration or stopping through the hydraulic system, which can be life-saving in emergencies. I remember once on a slippery mountain road, it was the foot brake's timely response that prevented skidding. As for the handbrake, that small lever or button specifically controls the rear wheels, mainly used to hold the car in place after parking to prevent rolling downhill. In my younger days, I also encountered issues with the handbrake cable rusting and jamming, causing rear wheel failure, which required immediate repair. I recommend everyone regularly inspect these components, especially checking if the handbrake's tension is sufficient—never neglect it while on the road. Normally, rely on the foot brake while driving, and remember to firmly engage the handbrake when parking to ensure safety.
I'm a car modification enthusiast and have modified quite a few brake systems. The foot pedal component actually controls the braking of all four wheels, using hydraulic pressure to bring the car to a quick stop. When I worked on my car, I took it apart and found linkage mechanisms on both the front and rear wheels. As for the handbrake, it's a mechanical control device that operates independently on the rear wheels via cables or electronic signals, used to secure the car when parked. Once, after a modification, I forgot to adjust the handbrake tension, and the car slid slightly on a slope, which scared me into making immediate adjustments. The foot brake is suitable for daily deceleration, while the handbrake serves as a lifesaving backup when the foot brake fails or for parking on steep slopes. I recommend not mixing the two and regularly lubricating the handbrake cable to ensure stable and safe operation.
