Anti-skid control method

An anti-skid control method comprising the steps of:

• providing an anti-skid control device comprising two pressure medium lines installed between a master cylinder and a return pathway of a pressure medium, each pressure medium line including an inlet valve, a selector valve, and a discharge valve arranged in series, a front wheel brake being connected between the inlet valve and the selector valve and having a front wheel brake pressure, and a diagonally opposite rear wheel brake being connected between the selector valve and the discharge valve and having a rear wheel brake pressure, and a control circuit which controls the front and rear wheel brake pressures through the two pressure medium lines by activating the inlet valves, selector valves and discharge valves as needed;
• determining rotational speeds of each front and rear wheel;
• judging a state of locking and slipping of each front and rear wheel;
• and
• activating the inlet valve, selector valve, discharge valve and combination thereof of the pressure medium lines as appropriate to control locking and slippage of each front and rear wheel;
• wherein the step of activating includes opening the inlet valves whenever the selector valves open to increase the brake pressure of the rear wheels to compensate for an otherwise accompanying reduction in pressure of the front wheels.