| 摘要 |
PROBLEM TO BE SOLVED: To provide a shift control device of an automatic transmission capable of shortening a shift time required from the start of shift operation for "a first speed-change stage" to the completion of shift operation for "a second speed-change stage" during multiple shifts. SOLUTION: During the multiple shifts of an accumulator system, while a connection state of a hydraulic circuit in the shift operation for "the first speed-change stage" is maintained, a shift signal for "the second speed-change stage" is outputted to start drain control at the same time when the multiple shifts are judged. Under this drain control, after accumulator back pressure is lowered, a solenoid control signal is outputted for switching to a solenoid pattern of "the second speed-change stage". COPYRIGHT: (C)2009,JPO&INPIT |
