| 摘要 |
PCT No. PCT/FR95/00469 Sec. 371 Date May 4, 1995 Sec. 102(e) Date May 4, 1995 PCT Filed Apr. 12, 1995 PCT Pub. No. WO95/30565 PCT Pub. Date Nov. 16, 1995A system for regulating pressure in a hydraulic circuit comprising at least one generator (110) of fluid under pressure, at least one reservoir (120) of fluid under low pressure and at least one pressure receiver (130, 130a, 130b). The system has least one solenoid valve with an electrical winding (18, 18a, 18b) and a moving magnetic core controlling the position of a distributor slide valve (16, 16a, 16b) which slides in a bore (14, 14a, 14b). Bore (14, 14a, 14b) communicates with a first duct (82) connected to the generator (110) of fluid under pressure, a second duct (12) connected to the pressure receiver (130, 130a, 130b) and a third duct (78) connected to the reservoir (120) of the fluid under low pressure. The system operates in response to a first type of control signal. (S1, S, Sa, Sb) derived from a plurality of inputs corresponding to the operation of a vehicle. A solenoid valve (40) and associated ball (76) respond to an input from a processor (20) to interrupt the feeding of the system by the generator (110) of fluid under pressure and allow fluid to be communicated to a second generator (50) of fluid under pressure in response to a second type of control signal (54) when ever at least one condition in the first type of control signal is not met in the operation of the vehicle.
|
