HYBRID VEHICLE WITH COMBUSTION ENGINE/ELECTRIC MOTOR DRIVE
First Claim
Patent Images
1. A work vehicle comprising:
- an engine;
a first generator coupled to the engine;
a drive shaft coupled to the engine;
a drive axle coupled to the drive shaft;
first and second wheel ends coupled to the drive axle;
first and second wheels coupled to the associated first and second wheel ends;
a wheel end drive assembly coupled to at least one wheel end, the wheel end drive assembly comprising;
an electric motor powered by the first generator;
a planetary gearset having a first input coupled to the drive axle, a second input coupled to the electric motor, and an output;
a second generator mechanically coupled to the engine;
a drive control unit configured to control the engine and the electric motor and to generate a control signal based upon at least one of torque and speed requirements of the work vehicle; and
a central tire inflation system coupled to the drive control unit and configured to regulate tire pressure based at least in part upon the control signal.
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Abstract
A vehicle including a prime mover, a generator mechanically coupled to the prime mover, a first multi-input drive unit having at least first and second rotational inputs and at least one rotational output wherein the first rotational input is coupled to the prime mover, a first electric motor mechanically coupled to the second rotational input and electrically coupled to the generator and a first pair of vehicle drive wheels coupled to the rotational output.
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Citations
20 Claims
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1. A work vehicle comprising:
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an engine; a first generator coupled to the engine; a drive shaft coupled to the engine; a drive axle coupled to the drive shaft; first and second wheel ends coupled to the drive axle; first and second wheels coupled to the associated first and second wheel ends; a wheel end drive assembly coupled to at least one wheel end, the wheel end drive assembly comprising; an electric motor powered by the first generator; a planetary gearset having a first input coupled to the drive axle, a second input coupled to the electric motor, and an output; a second generator mechanically coupled to the engine; a drive control unit configured to control the engine and the electric motor and to generate a control signal based upon at least one of torque and speed requirements of the work vehicle; and a central tire inflation system coupled to the drive control unit and configured to regulate tire pressure based at least in part upon the control signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A work vehicle comprising:
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an engine; a motor/generator coupled to the engine; a generator mechanically coupled to the engine; a drive shaft coupled to the engine; a drive axle coupled to the drive shaft; first and second wheel ends coupled to the drive shaft; first and second wheels coupled to the associated first and second wheel ends; a wheel end drive assembly coupled to at least one wheel end, the wheel end drive assembly comprising; an electric motor disposed external to the wheel end powered by the generator; a planetary gearset disposed external to the wheel end, the planetary gearset having a first input coupled to the drive shaft, a second input coupled to the electric motor, and an output coupled to the drive axle; a drive control unit configured to control the engine and the electric motor and to generate a control signal based upon at least one of torque and speed requirements of the work vehicle; and a central tire inflation system coupled to the drive control unit and configured to regulate tire pressure based at least in part upon the control signal. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A vehicle comprising:
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a prime mover; a first generator mechanically coupled to the prime mover; a second generator mechanically coupled to the prime mover; a first multi-input drive unit having at least first and second rotational inputs and at least one rotational output, wherein the first rotational input is coupled to the prime mover; a first electric motor mechanically coupled to the second rotational input and electrically coupled to the first generator; a first pair of vehicle drive wheels coupled to the rotational output; a drive control unit configured to control the prime mover and the first electric motor and to generate a control signal based upon at least one of torque and speed requirements of the vehicle; and a central tire inflation system coupled to the drive control unit and configured to regulate tire pressure based at least in part upon the control signal. - View Dependent Claims (18, 19, 20)
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Specification