| 摘要 |
A switch-selectable transmission control with a safety mechanism that changes gear ratios by automatically actuating gearshift solenoid valves according to the signal from a gear-selection switch is provided to a vehicle whose transmission is controlled from a finger-touch switchboard. With a vehicle speed limit preset for each gear, the transmission control allows a gearshift if the vehicle speed is within the preset limit, while it forcibly maintains the transmission in neutral, whichever gear is selected, when the vehicle speed is outside the preset limit. By so doing, the transmission control prevents hazardous gearshifts.
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