| 摘要 |
<P>PROBLEM TO BE SOLVED: To properly determine the malfunction of the clutch of a transmission. <P>SOLUTION: An automobile has a motor and the transmission for transmitting power from a motor to be output to a driving shaft with a change in the connected condition of the clutch. Herein, a rotating speed difference ΔN as an absolute value for a deviation between a rotating speed Nm2 of the motor and (Nr×Gr) that a rotating number Nr of the driving shaft is multiplied by a gear ratio Gr of the transmission is calculated (S110). When the calculated rotating speed difference ΔN is a threshold value Nref2 or more (S130), the rotating speed difference ΔN is integrated to calculate a time integration value In (S140), and when the calculated time integration value In gets to a threshold value Inref or more, the malfunction of the clutch of the transmission is determined (S160, S170). Thus, the malfunction of the clutch of the transmission is determined earlier even when the rotating speed Nm2 of the motor is not so increased. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
