| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a control device of an automatic transmission for preventing any speed change shock when the vehicle speed is low. <P>SOLUTION: In the control device of the automatic transmission, a gear change stage of the automatic transmission 7 is changed based on the vehicle speed detected by a vehicle speed sensor 13 in the automatic transmission 7, and the oil feed to a hydraulic circuit 11 is controlled. When the vehicle speed detected by the vehicle speed sensor 13 is the predetermined value V1 or under, and the turbine rotational speed detected by a turbine sensor 12 is the predetermined value N1 or over, the control device determines that the vehicle speed sensor 13 is possible failed, and the change of the gear change stage of the automatic transmission 7 is prohibited. <P>COPYRIGHT: (C)2008,JPO&INPIT |
