Hydraulic System: Description and Operation

Hydraulic Brake Actuation

The hydraulic brake actuation system consists of the following components:

- Brake master cylinder

- Brake fluid reservoir

- Brake pedal and bracket assembly

- Brake tubes and hoses

- Hydraulic Control Unit (HCU)

Hydraulic Brake Actuation

The brake pedal is connected to the power brake booster, which is connected to the brake master cylinder. When the brake pedal is pressed, brake fluid is forced from the master cylinder through the steel tubing and flexible hoses to the front disc brake calipers and the rear disc brake calipers. The front disc brake caliper pistons are forced outward against the brake pads, which contact the braking surface of the brake discs. The brake fluid calipers are pressurized by the master cylinder, forcing the disc brake caliper pistons outward against the brake pads. The brake pads press against the braking surface on the brake discs. When the brake pedal is released, the pressure is relieved, returning the brake caliper pistons and the brake pads to the at-rest position.

The dual brake system is split front and rear with the front wheel brakes comprising one circuit and the rear wheel brakes the other circuit.