| 摘要 |
PROBLEM TO BE SOLVED: To correct a speed change time constant so that a gear shifting speed is decreased when it is decided that operation of a select lever by a driver is performed. SOLUTION: An arrival change gear ratio calculating part 73 researches a given map from a throttle opening and a car speed to calculate an arrival change gear ratio i*. A target change gear ratio calculating part 75 calculates a target change gear ratio Ratio 0 to realize the arrival change gear ratio i*. A speed change time constant calculating part calculates a deviation between the arrival change gear ratio i* and the target change gear ratio Ratio 0 and through comparison of the deviation with a preset value, a time constant calculation mode responding to a speed? change demand by a driver is set, and based on a time constant calculation mode and the presence of operation of a select lever, responsiveness of a speed change to the arrival change gear ratio 1* is decided and first and second speed change time constants Tg1 and Tg2 to set a gear shifting speed are calculated.
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