| 摘要 |
PCT No. PCT/US82/01062 Sec. 371 Date Aug. 4, 1982 Sec. 102(e) Date Aug. 4, 1982 PCT Filed Aug. 4, 1982.A control system for operating the clutch and brake elements of a multiple speed ratio transmission includes a manual valve that opens line pressure to a transfer valve, which in its first state pressurizes a feed line through which any of the clutches and servos may be selectively pressurized. In its second state, the transfer valve pressurizes the clutches whose engagement that produces a predetermined speed ratio. The detector valve moves the transfer valve to the second state if the combination of pressurized clutches and servos is other than the combination that produces a drive ratio in normal operation.
|
