| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress a gear rattling sound of a gear mechanism without having to change an operation point of an internal-combustion engine in a vehicle with a plurality of electric motors for outputting power to a plurality of axles. <P>SOLUTION: A hybrid motor car 20 sets tentative motor torque to be outputted from a motor MG2 on a front wheel side on the basis of demand torque T* to be required for travelling, adds a prescribed value to the tentative motor torque so as to be torque beyond the range to set a torque command Tm2* to be outputted from the motor MG2 when the set tentative motor torque is in a prescribed low torque range in which the gear rattling sound is generated in a decelerator gear 35, sets a torque command Tm3* to be outputted from a motor MG3 on a rear wheel side by subtracting a torque value cancelling the prescribed value, and controls the motors MG2, MG3 on the basis of the set torque commands Tm2*, Tm3* without having to change an operation point of the engine 22. Thus, the motor car 20 changes the torque command Tm2* from the motor MG2 by using the motor MG3. <P>COPYRIGHT: (C)2008,JPO&INPIT |
