Which Wheels Does the Foot Brake of a Sedan Control?

1 Answers
EvelynLee
07/29/25 7:04pm
The foot brake of a sedan controls all four wheels, while the handbrake only controls the rear two wheels. Working principle of the foot brake: When the brake pedal is pressed, the force applied by the foot causes the piston in the master cylinder to push the brake fluid forward, creating pressure in the hydraulic lines. This pressure is transmitted through the brake fluid to the piston of the brake caliper at each wheel. The caliper piston then pushes the brake pads outward, causing them to rub against the inner surface of the brake drum. This friction generates sufficient force to reduce the rotational speed of the wheels, achieving the braking effect. Braking techniques: When braking, release the brake before the vehicle comes to a complete stop. Continuously pressing the brake can cause a significant impact force at the moment of stopping. The technique is to release the brake once before the vehicle fully stops and then gently press the brake again until the vehicle comes to a halt.
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