PARKING BRAKE VALVE SYSTEM WITH ELECTRONIC CONTROL FOR VEHICLES WITH AIR PRESSURE BRAKES Russian patent published in 2008 - IPC B60T17/04 B60T13/38 B60T15/04 

FIELD: automotive industry.

SUBSTANCE: system incorporates pneumohydraulic pressure source to feed braking force to the braking drive made up of a parking brake chamber and a combined valve making a pneumohydraulic connection of the braking drive and the pressure source. The combined valve incorporates an inlet pneumohydraulically connected to the pressure source, and an outlet pneumohydraulically connected to the braking drive. The combined valve contains in one body an electromagnet reacting to the electrical signals by moving from the position whereat the parking brake chamber is pneumohydrauliclly connected to the pressure source to create pressure in the parking brake chamber and to release the parking brake into another position whereat the parking brake chamber is open to atmosphere to release pressure in the parking brake chamber so that to throw in the brake, and, at least, any two devices made up of a manifold, an inversion valve, a dual check valve and an anti-locking valve.

EFFECT: removal of large-size piping from the braking system.

18 cl, 3 dwg