| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a synchronous machine control unit for vehicles that makes a control system for continuing an operation simpler than before even if temporarily stopping power supply under a high-speed operation or a deceleration operation, improves stability and responsiveness, and reduces costs. <P>SOLUTION: When power supply is stopped under the high-speed operation of a permanent magnet synchronous motor 11, a control means 20 continues weak field control such that an induced voltage of the permanent magnet synchronous motor 11 does not exceed a DC voltage of a capacitor 9 to an inverter 10, and performs torque control such that the operation continues smoothly. When the power supply is stopped under the deceleration operation of the permanent magnet synchronous motor 11, torque control is performed to the inverter 10 such that occurrence of brake torque continues, and control is performed such that power generated by the inverter 10 becomes zero. In this case, the control means 20 independently controls a d-axis current command and a q-axis current command each. <P>COPYRIGHT: (C)2011,JPO&INPIT |
