ELECTRIC POWERTRAIN FOR WORK MACHINE
First Claim
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1. A machine comprising:
- an engine configured to provide the machine with mechanical energy;
a generator operably coupled to the engine and configured to convert at least a portion of the mechanical energy into electric energy;
first and second electric motors operably coupled to the generator;
a generator controller adapted to control the generator, a first motor controller adapted to control the first electric motor and a second motor controller adapted to control the second electric motor;
a master controller adapted to control all of the generator controller, first motor controller and second motor controller so as to operate the generator, first motor, and second motor in a coordinated manner;
first and second driving members located on either side of the machine; and
first and second ground engaging members configured to propel the machine, the ground engaging members being operably coupled to the driving members, wherein the first and second electric motors are operably coupled to the first and second driving members such that torque is supplied to one of the first and second ground engaging members via one of the first and second electric motors, and torque is supplied to another of the first and second ground engaging members via another of the first and second electric motors.
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Abstract
An electric powertrain includes an engine configured to provide mechanical energy and a generator operably coupled to the engine and configured to convert at least a portion of the mechanical energy into electric energy. The electric powertrain further includes at least one electric motor operably coupled to the generator, a plurality of driving members, and at least one power electronics unit configured to control at least one of the engine and the generator. The at least one electric motor is configured to provide torque for the plurality of driving members.
35 Citations
20 Claims
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1. A machine comprising:
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an engine configured to provide the machine with mechanical energy; a generator operably coupled to the engine and configured to convert at least a portion of the mechanical energy into electric energy; first and second electric motors operably coupled to the generator; a generator controller adapted to control the generator, a first motor controller adapted to control the first electric motor and a second motor controller adapted to control the second electric motor; a master controller adapted to control all of the generator controller, first motor controller and second motor controller so as to operate the generator, first motor, and second motor in a coordinated manner; first and second driving members located on either side of the machine; and first and second ground engaging members configured to propel the machine, the ground engaging members being operably coupled to the driving members, wherein the first and second electric motors are operably coupled to the first and second driving members such that torque is supplied to one of the first and second ground engaging members via one of the first and second electric motors, and torque is supplied to another of the first and second ground engaging members via another of the first and second electric motors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A machine comprising:
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an engine configured to provide the machine with mechanical energy; a generator operably coupled to the engine and configured to convert at least a portion of the mechanical energy into electric energy; first and second electric motors operably coupled to the generator via at least one power electronics unit configured for providing energy to the first and second electric motors during propulsion and for receiving energy from the first and second electric motors during braking; first and second driving members located on either side of the machine; and first and second ground engaging members configured to propel the machine, the ground engaging members being operably coupled to the driving members, wherein the first and second electric motors are operably coupled to the first and second driving members such that torque is supplied to one of the first and second ground engaging members via one of the first and second electric motors, and torque is supplied to another of the first and second ground engaging members via another of the first and second electric motors. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification