| 摘要 |
A transmission and control having a fluid or mechanical drive input in the forward gear ratios and a mechanical drive input in reverse gear ratios. The control, for controlling the engagement of a low-reverse brake when the transmission operation is changed for neutral or forward or reverse drive, has a shift valve responsive to a relay valve controlled by a manual valve. The relay valve responds to movement of the manual valve from neutral to forward or reverse drive to actuate the shift valve thereby directing fluid to engage the low-reverse brake. The control may be operated to selectively provide a mechanical input drive in the first ratio also. |
