| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve responsiveness when slip control is restarted by preventing clutch engaging pressure from becoming a control maximum value even if there is a rotational-speed detection error during slip-zero feedback-control. <P>SOLUTION: The clutch engaging pressure tΔP is feedback controlled in order to set slip rotational speedΔN to zero for preventing overheat during a period from t1 when clutch-facing-temperature TEMPcf becomes slip-control prohibiting temperature TEMP1 or more to t4 when the TEMPcf becomes slip-control permitting temperature TEMP2 or below. After time point t2 when the tΔP attempts to exceed slip-rotation-zero minimum-necessary engaging pressureΔPlimt caused by the rotational-speed detection error, an increase in the tΔP is limited in order not to exceed theΔPlimt. Accordingly, a decrease in the tΔP to be performed when restarting slip control at the t4 is performed from theΔPlimt lower than the control maximum valueΔPmax, and a response delay of the slip control is improved byΔT2. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
