| 摘要 |
PURPOSE:To enable effective usage of adhesion by judging the end of idle acceleration interval based on the start of deceleration of idling speed and droppage of the differentiated creep speed below a reference value. CONSTITUTION:A microprocessor 12 judges an idle acceleration interval and an idle non-acceleration interval based on a driving wheel circumferential speed VM, differentiated value VM thereof, vehicle speed VT and differentiated value VT thereof, and rises a strong adhesion control signal Tf quickly during idle acceleration interval while decreases the strong adhesion control signal Tf gradually during idle non-acceleration interval. Start of idling is detected based on the fact that the differentiated value of the creep speed (VM - VT) has exceeded over a reference value. End of idle acceleration is detected based on the fact that a predetermined time has elapsed after a time point when the differentiated creep speed has dropped below zero or a time point when the polarity of the differentiated driving wheel has changed. |
