| 摘要 |
<p>At the time of constituting a power conversion device for driving an AC motor for an electric vehicle, a cooling device is prevented from becoming large, and it is constituted to be small, light and inexpensive. A current command generating part installed in a controller controlling the AC motor is adjusted so that loss of an inverter does not increase in a state where the inverter being a main circuit in the power conversion device outputs maximum voltage which can be generated under output voltage of a DC power supply and when a torque command decreases. The current command generating part outputs a current command with which the AC motor generates torque based on the torque command.</p> |
