×

CONTROL DEVICE AND CONTROL METHOD FOR VEHICULAR ROTATING ELECTRIC MACHINE

  • US 20140346979A1
  • Filed: 05/20/2014
  • Published: 11/27/2014
  • Est. Priority Date: 05/21/2013
  • Status: Active Grant
First Claim
Patent Images

1. A control device for at least a first rotating electric machine and a second rotating electric machine, the control device comprising:

  • an electronic control device configured to;

    (a) distribute a torque command based on a drive request of a driver to at least the first rotating electric machine and the second rotating electric machine,(b) determine a slip frequency in accordance with the distributed torque command, and(c) determine a command frequency from the slip frequency and a rotational frequency of the first rotating electric machine; and

    an inverter converting direct current power into alternating current power in accordance with the command frequency and supplying alternating current power obtained by converting direct current power into alternating current power to at least the first rotating electric machine and the second rotating electric machine,the electronic control device being configured to;

    (d) switch the command frequency to a frequency outside an inverter lock frequency band by changing the slip frequency when the command frequency is included in the inverter lock frequency band, and(e) change the torque command to the second rotating electric machine other than the first rotating electric machine of which the slip frequency is changed such that a torque fluctuation caused by the change of the slip frequency is canceled out.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×