The cooling controller and cooling control method of electric motor for electric vehicle

The cooling controller and cooling control method of electric motor for electric vehicle

  • CN 105,121,215 B
  • Filed: 04/11/2013
  • Issued: 02/19/2019
  • Est. Priority Date: 04/11/2013
  • Status: Active Grant
First Claim
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1. a kind of cooling controller of electric motor for electric vehicle comprising:

  • To the motor of the wheel of vehicle transmitting power;

    The clutch of power or the cutting power is transmitted from the motor to the wheel;

    The oily circulation portions for the motor linkage being driven and recycling oil in the motor;

    AndThe vehicle control section of the movement of the motor and the clutch is controlled,The vehicle control section includesThe vehicle determined if the vehicle has stopped stops determination unit;

    The clutch control portion of the clutch is disconnected in the case where determining the stopped situation of vehicle;

    The motor control part of the oily circulation portions is driven by driving the motor after disconnecting the clutch;

    WithAndDetect the induced voltage that is generated by the driving of the motor, according to the induced voltage of the motor detected comeThe rotor magnets temperature estimating department of the magnet temperature of the motor is estimated,It is higher than benchmark temperature prespecified needed for the cooling motor in the magnet temperature for the motor that presumption obtainsIn the case where degree, the motor control part continues to drive the motor, the motor magnet temperature in the baseIn quasi- temperature situation below, the motor control part stops the driving to the motor,The motor control part makes the motor exist in the case where driving the motor after disconnecting the clutchIt is constantly driven under multiple revolving speeds.

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