| 摘要 |
PURPOSE:To compensat for a drop in motor drive torque due to a voltage drop of a battery without using a complicated control system. CONSTITUTION:A torque command value processing unit 20 determines a torque command value TO of a traveling AC motor 5 wanted by a driver based on the opening of an accelerator, and a virtual driving force computing unit 27 determines a virtual driving force F output from tires by the torque command value TO. On the other hand, a traveling resistance computing unit 26 determines a traveling resistance R by adding a grade resistance mg.sin thetaduring constant speed traveling and a rolling resistance k1 to an air resistance k2V<2>. And an accelerator command compensator 29 increases and compensates the torque command value TO in response to the percentage of decrease relative to the virtual driving force F of the traveling resistance R for the virtual driving force F and outputs a motor drive torque T for a motor drive circuit 30 driving the traveling AC motor 5. |
