| 摘要 |
<P>PROBLEM TO BE SOLVED: To adjust a rotational position of detent plate to a reference position of a range by using the aligning function of a detent mechanism, to learn the reference position of the range even while not performing artificial range switching operation, to perform when starting a vehicle before traveling, and to perform learning without performing operation for largely rotating the detent plate. <P>SOLUTION: In a range switching device of an automatic transmission, a shift control device learns an output voltage value of the rotational position of the detent plate detected by an angle sensor as the bottom center by performing first aligning control for adjusting the bottom center of an engaging recess of the detent plate to a detent pin of the detent mechanism, and controls so as to operate the aligning function possessed by the detent mechanism itself by performing first motor driving control for changing the engaging relationship between the engaging recess of the detent plate and the detent pin in the first aligning control. <P>COPYRIGHT: (C)2009,JPO&INPIT |
