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HYBRID WORKING MACHINE AND METHOD OF CONTROLLING HYBRID WORKING MACHINE

  • US 20150081147A1
  • Filed: 11/20/2012
  • Published: 03/19/2015
  • Est. Priority Date: 05/23/2012
  • Status: Active Grant
First Claim
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1. A hybrid working machine comprising:

  • an internal combustion engine;

    a generator motor which is connected to an output shaft of the internal combustion engine;

    a battery which stores power generated by the generator motor and supplies the power to the generator motor;

    an electric motor which is driven by at least one of the power generated by the generator motor and the power stored in the battery;

    a transformer which is installed between the battery and the generator motor and between the battery and the electric motor;

    a transformer temperature detecting sensor which detects a temperature of the transformer;

    a battery temperature detecting sensor which detects a temperature of the battery; and

    an overheat suppression control device which changes the amount of the power regenerated by the electric motor supplied to the battery and the amount of the power regenerated by the electric motor supplied to the generator motor based on the temperature of the transformer detected by the transformer temperature detecting sensor and the temperature of the battery detected by the battery temperature detecting sensor.

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