Scheme 278
- The front brakes are ventilated disc types which feature high heat dissipation and superb braking stability. In addition, the front brake quickly restores the original braking performance even when wet.
- The disc rotor, which is externally mounted, is secured together with the disc rotor using the hub bolts, to facilitate removal or installation when servicing the vehicle.
- The inner brake pad is provided with an indicator which indicates pad wear limits. (Scheme 278): Identifying Disc Brake Components
Pressure "Decrease" Action With ABS In Operation
Current is supplied to the inlet and outlet solenoid valves, and the generated solenoid valve attracting forces close the inlet port and open the outlet port.
Accordingly, the wheel cylinder is isolated from the master cylinder and becomes clear to the reservoir, allowing the brake fluid to flow to the reservoir. So the fluid pressure of the wheel cylinder is decreased.
The brake fluid collected in the reservoir is fed to the master cylinder by the pump.
Note. Explained with one wheel's control as an example.
Pressure "Decrease" Action With ABS In Operation. Scheme 279
Pressure "Hold" Action With ABS In Operation
Current is supplied to the inlet solenoid valve, and the generated solenoid valve attracting force closes the inlet port.
Since no current is supplied to the outlet solenoid valve, the output port remains in a closed state. As a result, the wheel cylinder, master cylinder and reservoir are blocked, and the fluid pressure of the wheel cylinder is maintained constant.
During ABS operation, the pump motor continues to operate.
Note. Explained with one wheel's control as an example.
Pressure "Hold" Action With ABS In Operation. Scheme 280
Pressure "Increase" Action With ABS In Operation
Since no current is supplied to the inlet and outlet solenoid valves, no solenoid valve attracting force is generated. So the valves remain stationary.
Accordingly, the inlet port of the inlet solenoid valve is in an opened state, whereas the outlet port of the outlet solenoid valve is in a closed state. So the fluid pressure of the master cylinder is transmitted to the wheel cylinder to increase the brake force in the wheel cylinder.
During ABS operation, the pump motor continues to operate.
Note. Explained with one wheel's control as an example.
