| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a shift controller of an automatic transmission, capable of preventing an obstruction even when a linear solenoid valve doubling as control of a lock-up clutch and control of a clutch for a low gear according to the operation state high-pressure fails. <P>SOLUTION: In the shift controller, a gear is set by controlling the operation of a shift valve 60 with an on/off solenoid valve. In each of a working state or a set state of a cut valve 90, a pattern of the same on/off solenoid working combination of the on/off solenoid valve 84 is set to set the different change gear stage. In a 2-3 up-shifting, a hydraulic passage of a first linear solenoid valve 86 is communicated with the control side of the lock up clutch when a lock-up clutch signal is off to control the output of the first linear solenoid valve 86 to zero. <P>COPYRIGHT: (C)2007,JPO&INPIT |
