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Series-parallel electric hybrid powertrain with multi fuel capabilities

  • US 9,604,527 B2
  • Filed: 07/14/2015
  • Issued: 03/28/2017
  • Est. Priority Date: 07/14/2015
  • Status: Active Grant
First Claim
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1. A hybrid powertrain for powering a vehicle, the hybrid powertrain comprising:

  • a micro turbine assembly;

    a turbine drive shaft extending from the micro turbine assembly, the turbine drive shaft having a turbine engaged position where a turbine rotational output of the micro turbine assembly is transferred by the turbine drive shaft to wheels of the vehicle, and a turbine unengaged position where the turbine rotational output of the micro turbine assembly is independent from the wheels, wherein the micro turbine assembly is operable at an optimum operating speed both when the turbine drive shaft is in the turbine engaged position and the turbine unengaged position;

    a generator selectively connected to the micro turbine assembly in parallel with a portion of the turbine drive shaft;

    a power storage device connected to, and chargeable by, the generator;

    an electric motor connected to, and drivable by, the power storage device;

    a motor drive shaft having a motor engaged position where a motor rotational output of the electric motor is transferred by the motor drive shaft to the wheels and a motor unengaged position where the motor rotational output of the electric motor is independent from the wheels;

    a generator drive shaft, the generator drive shaft having a generator engaged position where the turbine rotational output of the micro turbine assembly is transferred by the generator drive shaft to the generator and a generator unengaged position where the turbine rotational output of the micro turbine assembly is independent from the generator;

    wherein the micro turbine assembly is operable at the optimum operating speed both when the generator drive shaft is in the generator engaged position and the generator unengaged position; and

    whereinthe power storage device is selectively connected to the wheels and is chargeable by rotation of the wheels simultaneously with the generator drive shaft being in the generator engaged position.

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