| 摘要 |
A synchronous meshing type automatic transmission control system is provided to be capable of shortening a time for gear change without generation of noises from gears and degradation of a synchronizing mechanism in durability, and comprises an internal combustion engine mounted on a vehicle, a speed change mechanism coupled to the internal combustion engine through a clutch, a shift-select actuator for selectively coupling one set of a plurality of sets of speed change gears having different gear ratios and intervening between an input shaft coupled to the clutch of the speed change mechanism and an output shaft for driving the vehicle, and a control device for inputting thereinto an output signal of a shift-select position sensor, which detects a selected position of the shift-select actuator, to operate a position of the shift-select actuator for gear change and for putting the clutch in weak coupling in a state, in which no gear is coupled between the input shaft and the output shaft in the course of gear change.
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