| 摘要 |
An electrohydraulic braking (EHB) system comprising a reservoir 10 for storing brake fluid, a pump 14 connected to the reservoir 10 for producing a supply of pressurized brake fluid, an accumulator 12 coupled to the pump 14 for storing pressurized brake fluid and a valve arrangement 28,30 for selectively controlling the supply of pressurized brake fluid from the accumulator 12 to the vehicle brakes 26 . In order to enable the accumulator pressure to be selective discharged for servicing purposes, an additional flow path (A) can be opened mechanically via the pump 14 which allows the flow of brake fluid from the accumulator 12 back to the reservoir 10. The additional flow path (A) may be established by selective displacement of a part of the pump 14 within its housing. |
