| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vehicle with a motor drive circuit including a converter and an inverter, the vehicle properly controlling overheat of DC power supply caused by resonance of the driving circuit. <P>SOLUTION: A controller that controls a motor drive circuit including a converter and an inverter inhibits execution of rectangular control of the inverter (S13), when satisfying that it is during an upper-arm ON control of the converter (no pressure rise)(YES at S10), motor rotational speed N is within a range of resonance rotational speed (YES at S11), and a square value of current Ib is permissible value or more (YES at S12). Meanwhile, the controller permits the execution of rectangular control (S14), when satisfying at least one of conditions such as that it is not during the upper-arm ON control (NO at S10), the motor rotational speed N is not within the range of the resonance rotational speed (NO as S11), and the square value of the current Ib is less than the permissible value (NO at S12). <P>COPYRIGHT: (C)2013,JPO&INPIT |
