Controller for automatic transmission
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United States of America Patent
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May 21, 2019
Grant Date -
Jan 25, 2018
app pub date -
Jul 11, 2017
filing date -
Jul 20, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
When a jump downshift via an intermediate shift stage is requested and a rotation speed of an input shaft approaches a synchronous rotation speed of the intermediate shift stage, a target torque phase time when the gear shift via the intermediate shift stage is performed with input switching is set to be shorter than that when the gear shift via the intermediate shift stage is performed without using input switching and torque phase control is performed. Accordingly, it is possible to promptly perform engagement of an engagement-side frictional engagement element at the time of passing through the intermediate shift stage and to rapidly perform the gear shift after passing through the intermediate shift stage.
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