System and method for all electrical operation of a mining haul truck
First Claim
1. A method for supplying electrical power to an electrical motor on an all electrically powered mining haul truck, the method comprising initially charging an on-board energy storage system with electrical power from a charging station or a trolley power system while the mining haul truck is coupled to first trolley lines of the trolley power system;
- uncoupling the mining haul truck from the charging station or the first trolley lines; and
supplying electrical power to the electrical motor from the on-board energy storage system while the mining haul truck is uncoupled from the charging station or the first trolley lines and travelling within a first region, coupling the mining haul truck to second trolley lines of a trolley ramp, supplying electrical power to the electrical motor and charging the on-board energy storage system from the second trolley lines while the mining haul truck travels along the trolley ramp, uncoupling the mining haul truck from the second trolley lines, and supplying electrical power to the electrical motor from the on-board energy storage system while the mining haul truck is uncoupled from the second trolley lines and travelling within a second region, wherein the mining haul truck is propelled by electrical power supplied by the trolley power system alone, or by the on-board energy storage system alone, or a combination of the trolley power system and the on-board energy storage system, without mechanical power supplied by a mechanical engine to propel the mining haul truck.
3 Assignments
0 Petitions
Accused Products
Abstract
A mining haul truck driven by electrical wheel motors is operated with all electrical power sources; that is, without a diesel engine. While travelling on the loading site, the mining haul truck is powered by an on-board energy storage system, which can comprise a bank of ultracapacitors. The mining haul truck then moves to the bottom of a trolley ramp and is coupled to trolley lines. While travelling uphill, the mining haul truck is powered by the trolley lines, and the on-board energy storage system is charged by the trolley lines. When the mining haul truck reaches the top of the trolley ramp, the mining haul truck is uncoupled from the trolley lines. While travelling on the unloading site, the mining haul truck is powered by the on-board energy storage system. The on-board energy storage system can also be charged by retard energy generated by the wheel motors during braking.
53 Citations
17 Claims
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1. A method for supplying electrical power to an electrical motor on an all electrically powered mining haul truck, the method comprising initially charging an on-board energy storage system with electrical power from a charging station or a trolley power system while the mining haul truck is coupled to first trolley lines of the trolley power system;
- uncoupling the mining haul truck from the charging station or the first trolley lines; and
supplying electrical power to the electrical motor from the on-board energy storage system while the mining haul truck is uncoupled from the charging station or the first trolley lines and travelling within a first region, coupling the mining haul truck to second trolley lines of a trolley ramp, supplying electrical power to the electrical motor and charging the on-board energy storage system from the second trolley lines while the mining haul truck travels along the trolley ramp, uncoupling the mining haul truck from the second trolley lines, and supplying electrical power to the electrical motor from the on-board energy storage system while the mining haul truck is uncoupled from the second trolley lines and travelling within a second region, wherein the mining haul truck is propelled by electrical power supplied by the trolley power system alone, or by the on-board energy storage system alone, or a combination of the trolley power system and the on-board energy storage system, without mechanical power supplied by a mechanical engine to propel the mining haul truck. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- uncoupling the mining haul truck from the charging station or the first trolley lines; and
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9. An electrical power system for supplying electrical power to an electrical motor on an all electrically powered mining haul truck, the electrical power system comprising:
- an on-board energy storage system;
an inverter configured to;
receive electrical power from the on-board electrical energy storage system;
receive electrical power from a trolley power system; and
supply electrical power to the electrical motor; and
a controller configured to;
Initially charge the on-board energy storage system with electrical power from a charging station or the trolley power system while the mining haul truck is coupled to first trolley lines of the trolley power system; and
supply electrical power to the electrical motor from the on-board energy storage system while the mining truck is uncoupled from the charging station or the first trolley lines and traveling within a first region,supply electrical power to the electrical motor and charge the on-board energy storage system by the second trolley lines of the trolley power system while the mining haul truck travels along a trolley ramp, and supply electrical power to the electrical motor from the on-board energy storage system while the mining haul truck is uncoupled from the second trolley lines and travelling within a second region, wherein the mining haul truck is configured to be propelled by electrical power supplied by at least one of the trolley power system alone, the on-board energy storage system alone, or a combination thereof without mechanical power supplied by a mechanical engine to propel the mining haul truck. - View Dependent Claims (10, 11, 12)
- an on-board energy storage system;
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13. A method for operating an all electrically powered mining haul truck comprising an electrical motor, the method:
- charging an on-board energy storage system with electrical power from a trolley power system while the mining haul truck is coupled to first trolley lines of the trolley power system;
supplying electrical power to the electrical motor from the trolley power system while the on-board energy storage system is being charged by the trolley power system;
uncoupling the mining haul truck from the first trolley lines;
supplying electrical power to the electrical motor from the on-board energy storage system;
driving the mining haul truck to a loading site; and
filling the mining haul truck with a payload;
driving the mining haul truck to a trolley ramp;coupling the mining haul truck to second trolley lines of the trolley power system;
driving the mining haul truck along the trolley ramp while coupled to the second trolley lines;
supplying electrical power to the electrical motor from the second trolley lines; and
charging the on-board energy storage system with electrical power supplied from the second trolley lines, wherein the mining haul truck is propelled by electrical power supplied by the trolley power system alone, or by the on-board energy storage system alone, or a combination of the trolley power system and the on-board energy storage system;
without mechanical power supplied by a mechanical engine to propel the mining haul truck. - View Dependent Claims (14, 15, 16, 17)
- charging an on-board energy storage system with electrical power from a trolley power system while the mining haul truck is coupled to first trolley lines of the trolley power system;
Specification