Mining truck and regenerative braking strategy therefor
First Claim
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1. A trolley assist-capable mining truck comprising:
- a frame;
a plurality of ground engaging wheels coupled to the frame;
a braking system coupled with the plurality of ground engaging wheels, and having a friction braking mechanism including an electrically actuated valve and a regenerative braking mechanism;
a line connecting mechanism configured to couple the regenerative braking mechanism with an overhead trolley line of an electrical power grid; and
an electronic control unit in control communication with the regenerative braking mechanism and the electrically actuated valve in the braking system, and being configured to receive data indicative of a change in demand for regenerated electrical power in the electrical power grid;
the electronic control unit being further configured to command braking the mining truck via outputting a control command to the electrically actuated valve such that application of a retarding torque on the ground engaging wheels is allocated from the friction braking mechanism to the regenerative braking mechanism in a manner which is responsive to the data.
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Abstract
Operating a trolley assist-capable mining truck having a regenerative braking mechanism and a friction braking mechanism includes receiving data indicative of a change in demand in an electrical power grid for regenerated electrical power from the mining truck, and commanding braking the mining truck such that application of the retarding torque is allocated to the regenerative braking mechanism in a manner responsive to the data. A mining truck and methodology relating to harvesting electrical power regenerated via application of retarding torque is also disclosed.
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Citations
7 Claims
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1. A trolley assist-capable mining truck comprising:
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a frame; a plurality of ground engaging wheels coupled to the frame; a braking system coupled with the plurality of ground engaging wheels, and having a friction braking mechanism including an electrically actuated valve and a regenerative braking mechanism; a line connecting mechanism configured to couple the regenerative braking mechanism with an overhead trolley line of an electrical power grid; and an electronic control unit in control communication with the regenerative braking mechanism and the electrically actuated valve in the braking system, and being configured to receive data indicative of a change in demand for regenerated electrical power in the electrical power grid; the electronic control unit being further configured to command braking the mining truck via outputting a control command to the electrically actuated valve such that application of a retarding torque on the ground engaging wheels is allocated from the friction braking mechanism to the regenerative braking mechanism in a manner which is responsive to the data. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification