| 摘要 |
PCT No. PCT/JP86/00072 Sec. 371 Date Dec. 2, 1986 Sec. 102(e) Date Dec. 2, 1986 PCT Filed Feb. 17, 1986 PCT Pub. No. WO86/04866 PCT Pub. Date Aug. 28, 1986.A shift control for an automatic countershaft type transmission includes a memory device which stores a plurality of maps representing optimum speed ratios for various vehicle conditions. The control selects from the maps based on the speed of the vehicle, the position of the accelerator pedal and on the state of operation of a brake. The control further determines whether the position of a shift lever corresponds to the optimum gear ratio obtained from the selected map. The transmission is shifted to the optimum gear ratio when the shift lever doesn't correspond to the optimum gear ratio position. |
