| 摘要 |
PROBLEM TO BE SOLVED: To efficiently shift a gear to a re-acceleration status without any need of waiting for a drop in travel speed by finding a correction value corresponding to the acceleration of an engine speed, and correcting an overrun judgement speed at a higher level for demanding a shift-down operation. SOLUTION: A transmission control unit makes judgement as to whether shift control should be made or not, upon the occurrence of a vehicular shift demand. Also, the magnitude of the acceleration of an engine speed is judged with a means 38 on the basis of the engine speed, and the set value of the magnitude is stored as an overrun judgement speed in a means 46. Furthermore, when the engine acceleration speed drops to a positive value equal to or below the prescribed level, depending on the judgement value thereof, with an accelerator opening totally closed in the gear set condition where a clutch is engaged and a transmission is at a forward travel gear, a climbing state is judged with a means 44 and a correction value is determined. The overrun judgement speed is thereby corrected and set at a higher level. According to this construction, a gear is efficiently shifted to a re-acceleration status without waiting for a drop in travel speed. |
