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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Accused Products
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.
308 Citations
54 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; and 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, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A work vehicle comprising:
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an engine; a generator coupled to the engine; a second 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 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 generator, a planetary gearset, the planetary gearset having a first input coupled to the drive axle, a second input coupled to the electric motor, and an output, and a planetary reduction gear having an input coupled to the output of the planetary gearset and an output coupled to the wheel end; a central tire inflation system including; an air supply source; an air manifold; an inflatable tire coupled to the air manifold and disposed on the wheel; a central tire inflation system control unit configured to generate a central tire inflation system control signal, wherein the air manifold regulates the air supplied to the wheel in response to the control signal; and a hybrid drive control unit configured to generate a hybrid drive control signal to control the engine and the electric motor and to based upon torque and speed requirements of the work vehicle, wherein the central tire inflation system control unit is configured to regulate tire pressure based at least in part upon the hybrid drive control signal. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42)
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43. A work vehicle comprising:
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an engine; a generator coupled to the engine; a second 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 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 generator, a planetary gearset, the planetary gearset having a first input coupled to the drive axle, a second input coupled to the electric motor, and an output; an ancillary equipment coupled to the drive shaft, 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 (44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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Specification