Components of the brake system

7.2.2 Brake drive

Medium and heavy duty trucks use a pneumatic drive (for the sake of the length of all drives). But we will focus on the hydraulic brake drive - the most popular drive for passenger cars.

Note
A drive is a set of mechanisms and parts designed to transmit force, thrust or movement.

This system is based on the non-compressible property of fluids.

The hydraulic brake drive consists of the following elements (which are shown in Figure 7.1):

brake pedal;
brake master cylinder;
vacuum booster;
branch pipes of the hydraulic drive and brake hoses;
front and rear working brake cylinders, that are located inside the brake mechanisms.

Note
Figure 7.1 shows an example of brake control. In addition to the hydraulic drive, an anti-lock braking system and a parking brake system are presented, the design and description of which will be given below.