| 摘要 |
<p>Control systems are required to selectively control fluid actuated devices, such as clutches, in a transmission. In order to reduce shock loads on the internal elements of the transmission, it is necessary to ensure that only one clutch can be engaged at one time and that no major speed changes or change in direction is allowed. The present invention provides an interlocking arrangement (72) that operates to control a source (14) of pressurized fluid to a plurality of valve mechanisms (18) and a plurality of signal control devices (20). The operation of one of the plurality of valve mechanisms (18) interrupts the flow of fluid to other ones of the plurality of valve mechanisms (18) and to ones of the signal control devices (20). With this subject arrangement, the shock loads to the transmission are substantially reduced.</p> |
