Multi-motor drive system for a work machine
First Claim
1. A multi-motor drive system for a machine, comprising:
- a first traction device and a second traction device substantially aligned transversely of a primary travel-direction of the machine;
a first drive-group power-transfer system that connects the first traction device and the second traction device;
a third traction device and a fourth traction device substantially aligned transversely of the primary travel-direction of the machine;
a second drive-group power-transfer system that connects the third traction device and the fourth traction device;
an inter-group power-transfer system that connects the first drive-group power-transfer system to the second drive-group power-transfer system and is configured to permit transfer of power between the first drive-group power-transfer system and the second drive-group power-transfer system;
a first drive motor operatively connected to the first drive-group power-transfer system separate from the inter-group power-transfer system, the first drive-group power-transfer system includes a motion-conversion unit and a drive shaft, and an output shaft of the first drive motor connects to the drive shaft through components of the motion-conversion unit; and
a second drive motor operatively connected to the second drive-group power-transfer system separate from the inter-group power-transfer system.
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Accused Products
Abstract
A multi-motor drive system for a work machine has a first traction device and a second traction device substantially aligned transversely of a primary travel-direction of the work machine. The drive system also has a first drive-group power-transfer system that connects the first traction device and the second traction device. The drive system may also include a third traction device and a fourth traction device substantially aligned transversely of the primary travel-direction of the work machine. Further, the drive system also includes a second drive-group power-transfer system that connects the third traction device and the fourth traction device. Additionally, the drive system has an inter-group power-transfer system that connects the first drive-group power-transfer system to the second drive-group power-transfer system. A first drive motor may operatively connect to the first drive-group power-transfer system separate of the inter-group power-transfer system. Moreover, the drive system may include a second drive motor operatively connected to the second drive-group power-transfer system separate of the inter-group power-transfer system.
56 Citations
22 Claims
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1. A multi-motor drive system for a machine, comprising:
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a first traction device and a second traction device substantially aligned transversely of a primary travel-direction of the machine; a first drive-group power-transfer system that connects the first traction device and the second traction device; a third traction device and a fourth traction device substantially aligned transversely of the primary travel-direction of the machine; a second drive-group power-transfer system that connects the third traction device and the fourth traction device; an inter-group power-transfer system that connects the first drive-group power-transfer system to the second drive-group power-transfer system and is configured to permit transfer of power between the first drive-group power-transfer system and the second drive-group power-transfer system; a first drive motor operatively connected to the first drive-group power-transfer system separate from the inter-group power-transfer system, the first drive-group power-transfer system includes a motion-conversion unit and a drive shaft, and an output shaft of the first drive motor connects to the drive shaft through components of the motion-conversion unit; and a second drive motor operatively connected to the second drive-group power-transfer system separate from the inter-group power-transfer system. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of operating a drive system for a machine, the drive system having a first drive-group with two traction devices substantially aligned transversely of a primary travel-direction of the machine, a first drive-group power-transfer system that connects the two traction devices of the first drive-group, and a first drive motor operatively connected to the first drive-group power-transfer system, the drive system having a second drive-group spaced from the first drive-group in the primary travel-direction and including two traction devices substantially aligned transversely of the primary travel-direction and a second drive-group power-transfer system that connects the two traction devices of the second drive-group, and the drive system having an inter-group power-transfer system that connects the first drive-group power-transfer system to the second drive-group power-transfer system, the method including:
transferring power from the first drive motor, through at least part of the first drive-group power-transfer system, the inter-group power-transfer system, and at least part of the second drive-group power-transfer system, to at least one of the traction devices of the second drive-group. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A machine, comprising:
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a power source; a power-conversion unit operatively coupled to the power source; a first traction device and a second traction device substantially aligned transversely of a primary travel-direction of the machine; a first drive-group power-transfer system, including a first differential unit, that connects the first traction device and the second traction device; a third traction device and a fourth traction device substantially aligned transversely of the primary travel-direction of the machine; a second drive-group power-transfer system, including a second differential unit, that connects the third traction device and the fourth traction device; an inter-group power-transfer system that connects the first drive-group power-transfer system to the second drive-group power-transfer system; a first drive motor operatively connected to the first drive-group power-transfer system separate from the inter-group power-transfer system; a second drive motor operatively connected to the first drive-group power-transfer system separate from the inter-group power-transfer system and at a point such that the first differential unit is connected between the first drive motor and the second drive motor; a third drive motor operatively connected to the second drive-group power-transfer system separate from the inter-group power-transfer system; and a fourth drive motor operatively connected to the second drive-group power-transfer system separate from the inter-group power-transfer system and at a point such that the second differential unit is connected between the third drive motor and the fourth drive motor. - View Dependent Claims (19, 20, 21, 22)
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Specification