Patent ID: 11926294
Assignee: ZF CV SYSTEMS EUROPE BV
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 9:
10. The relay valve module of claim 9, further comprising:
a first ABS inlet valve and a second ABS inlet valve; and
a first ABS outlet valve and a second ABS outlet valve for at least one wheel brake cylinder of each side of the vehicle axle,
wherein each of the ABS inlet and outlet valves comprises a pressure-controlled diaphragm valve with an associated pilot control valve,
wherein each pilot control valve comprises a cyclically controllable 3/2 directional valves by which in each case one control pressure chamber of an associated diaphragm valve is selectively chargeable with service brake pressure or with control pressure picked off at the relay valve control connection of the relay valve or with ambient pressure.