As soon as the wheel slows down or begins to slip, which indicates the beginning of its blocking, the uncoupling solenoid valve of this brake circuit, according to the signals of the electronic control unit, interrupts the supply of brake fluid to the wheel cylinder of the wheel brake mechanism, thereby maintaining a constant brake pressure. If at the same time the wheel is still blocked. the discharge solenoid valve opens and connects the wheel cylinder to the reservoir of the hydraulic unit, as a result of which the brake pressure decreases and the wheel is released.
This opens the inlet solenoid valve and closes the outlet valve, resulting in normal brake pressure.
The described cycle is repeated several times per second until then. until the vehicle stops or the brake pedal is released.
The anti-lock brake system operates at a vehicle speed of at least 7 km/h.
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