| 摘要 |
<P>PROBLEM TO BE SOLVED: To restrain noise during eliminating the backlash of a forward driving system and a backward driving system even when the driving systems are different from each other. <P>SOLUTION: When a selection range of a transmission is checked by a step S1 and the selection range is determined as R (backward traveling) range by a step S2, backward driving is performed by a driving force transmitting unit in start of transmission, backlash eliminating torque Tr of the backward driving system is calculated by a step 13 by fixedly using friction in a lowermost oil temperature of a usage oil temperature of the driving force transmitting unit, and an electric motor is energized to the backward driving force generating direction so as to generate the torque Tr. When the selection range is determined as D (forward traveling) range by a step S8, backward driving is performed by the driving force transmitting unit in start of transmitting, backlash eliminating torque Td of the forward driving system is calculated by a step 14 by fixedly using friction in the lowermost oil temperature of the usage oil temperature of the driving force transmitting unit, and the electric motor is energized to the forward driving force generating direction so as to generate the torque Td. <P>COPYRIGHT: (C)2008,JPO&INPIT |
