| 摘要 |
PROBLEM TO BE SOLVED: To prevent motion of a vehicle during a vehicle stop operation, in an automatic transmission using shift equipment of a shift by wire system which changes a shift range by an actuator. SOLUTION: The interior of the automatic transmission is interlocked until the position of a manual shift valve reaches a P range after issuance of a vehicle stop instruction [D to P instruction]. Specifically, the interior of the automatic transmission is interlocked, in addition to engagement of a first clutch C1 serving as a friction engagement element of a first gear range of the automatic transmission, by engaging a second brake B2 causing an engine brake to act and a third brake B3 forming a reverse gear range, and therefore, motion of the vehicle is prevented in a period from the vehicle stop operation [P instruction] until the actual shift range is changed to the P range. COPYRIGHT: (C)2009,JPO&INPIT
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