In a certain brake control apparatus, a valve main body of a hydraulic control valve and a coil unit are separately formed, are assembled with each other, and are mounted on an actuator block. Further, bias current is secured even though the supply of curr...

The present invention relates to an electronic control brake system. The present invention is directed to an electronic control brake system in which an oil pressure created in a master cylinder (1) is transferred to a wheel brake to apply a braking force ...

A device for fixing coil assemblies (22) of solenoid valves (20) for an electronically controlled brake system in which a bobbin (22b) of each coil assembly (22) is firmly coupled to a housing (11) of an electric control unit (ECU) by fixing bosses (51,52)...

An anti-lock control member (S1-S6) controls so as to realize any of a pressure decreasing mode where a normally-opened electromagnetic valve (8) is closed, while a normally-closed electromagnetic valve (11) is opened, a holding mode where the normally-ope...

A normally closed electromagnetic valve (50, 51, 52, 53, 56, 57, 58, 59) is closed again after temporarily being opened during an abnormality check of the valve (70; 80). When the valve (70; 80) is opened, electricity is supplied so that a plunger (78; 88)...

The electromagnetically operated valve device (20) has first and second magnet coil devices (39,43) for operating the valve device that are coupled together as regards their magnetic flux. The first and second magnet coils are components of an electromagne...

The method involves applying a pull-in current and connecting a free-running diode with a clocked permanent current to switch the valve on, changing to a holding current after reaching the pull-in current, resulting in a clocked permanent current signal th...

The braking system operating method has a feedback pump for providing the braking pressure, a suction valve infront of the pump and/or a switching valve after the pump controlled in dependence on a braking command (BB), with a hysteresis relationship betwe...