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Power train for hybrid electric vehicle

  • US 20080041647A1
  • Filed: 11/27/2006
  • Published: 02/21/2008
  • Est. Priority Date: 08/08/2006
  • Status: Active Grant
First Claim
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1. A power train for a hybrid electric vehicle, comprising:

  • an engine that generates a driving force by burning a fuel;

    first and second motor generators that are supplied with electrical energy to generate driving forces and supplied with kinetic energies to output as electrical energy;

    a battery that stores the electrical energy supplied from the first and second motor generators and supplies electrical energy required for operating the first and second motor generators;

    a plurality of planetary gear sets that convert the driving forces output from the engine, and the first and second motor generators to have an appropriate gear ratio according to a driving state and output the converted driving forces to a driving shaft; and

    a plurality of breaks that are provided in the plurality of planetary gear sets and control the output revolution on the basis of the gear ratio determined according to a driving state.

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