| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device of vehicular automatic transmission, capable of suitably detecting abnormality of shift while improving fuel consumption. SOLUTION: The control device of a stepped automatic transmission 10 configured to selectively establish a plurality of shift stages determines abnormality of shift when a rotating speed abnormal state after shift of the transmission 10 continues for a predetermined time t0 or more. When a sign of abnormality for the shift at the time is detected, the following shift output is delayed. Thus, abnormality such as failure of shift stage at the time can be suitably determined while ensuring the improvement effect of fuel consumption by early upshift. COPYRIGHT: (C)2010,JPO&INPIT |
