초록 ▼

A method for controlling an automotive anti-skid brake system allows control for braking pressure at each wheel independently of other wheels. The anti-skid brake control is initiated in response to a drop of wheel acceleration across a predetermined wheel deceleration threshold. In the anti-skid br

A method for controlling an automotive anti-skid brake system allows control for braking pressure at each wheel independently of other wheels. The anti-skid brake control is initiated in response to a drop of wheel acceleration across a predetermined wheel deceleration threshold. In the anti-skid brake control operation, braking pressure for at least two wheels are released in synchronism with each other. On the other hand, increasing rate of the braking pressure at the synchroneously released wheels are varied to each other so that when one of the wheels causes wheel-locking, the other wheel is held in a non-locking condition, This assures that the derivation of the vehicle speed representing value will be based on the wheel speed of the other wheel which is not locking and to assure prevention of locking at any wheels.

대표청구항 ▼

An anti-skid brake control system for an automotive vehicle, comprising: a hydraulic brake circuit including a plurality of wheel cylinders for establishing braking pressure for decelerating vehicular wheels; first and second anti-skid brake control valves, each associates at least one of first and

An anti-skid brake control system for an automotive vehicle, comprising: a hydraulic brake circuit including a plurality of wheel cylinders for establishing braking pressure for decelerating vehicular wheels; first and second anti-skid brake control valves, each associates at least one of first and second wheel cylinders which are associated with first and second wheels for adjusting braking pressure therein, each of said anti-skid brake control valves being operable to increase braking pressure in the associated wheel cylinder in a first mode position, and to decrease the braking pressure in the associated wheel cylinder in a second mode position; first sensor for monitoring rotation speed of said first wheel for producing a first wheel speed indicative signal; second sensor for monitoring rotation speed of said second wheel for producing a second wheel speed indicative signal; first means for monitoring wheel slippage at said first and second wheels based on said first and second wheel speed indicative signals and detecting wheel slippage at one of said first and second wheels when said wheel slippage increases across a given slippage threshold for operating said first and second anti-skid brake control valves in said second mode position; and second means for detecting said first and second wheel speed indicative signals for operating said first and second anti-skid brake control valves in said first mode position when a predetermined brake condition is satisfied while said first and second anti-skid brake control valves are in said second mode position, said second means increasing a rate of braking pressure in said first and second wheel cylinders in response to said detection so that the braking pressure in a third wheel cylinder is increased at a greater increasing rate than that in a fourth wheel cylinder.