Mining truck and regenerative braking strategy therefor

A technology for regenerative braking and trucks, applied in trucks, control drives, electric braking systems, etc.

Inactive Publication Date: 2014-08-20
CATERPILLAR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are various drawbacks associated with these known

Method used

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  • Mining truck and regenerative braking strategy therefor
  • Mining truck and regenerative braking strategy therefor
  • Mining truck and regenerative braking strategy therefor

Examples

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Embodiment Construction

[0015] refer to figure 1 , which shows a trolley assist capable mining truck 10 according to one embodiment. The mining truck may include a frame 12 having a set of front ground engaging wheels 14 and a set of rear ground engaging wheels 16 coupled to the frame 12 . In the illustrated embodiment, a set of two front wheels 14 configured to steer the truck 10 and a set of two pairs of rear wheels 16 on one axle for propelling the truck 10 are provided, although the invention is not limited thereto. The bed 18 is coupled to the frame 12 and can be tilted between a lowered position as shown and a raised position to dump material within the bed 18 in a conventional manner. The mining truck 10 may also include a propulsion system 39 of which the ground contact wheels 14 and / or 16 may be part, the system 39 including a drive train 40 having an internal combustion engine 42 and a generator 44 providing electrical power via the internal combustion engine 42 . In a practical implement...

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Abstract

Operating a trolley assist-capable mining truck (10) having a regenerative braking mechanism (46) and a friction braking mechanism (52, 54) includes receiving data indicative of a change in demand in an electrical power grid (102) for regenerated electrical power from the mining truck (10), and commanding braking the mining truck (10) such that application of the retarding torque is allocated to the regenerative braking mechanism (52, 54) in a manner responsive to the data. A mining truck (10) and methodology relating to harvesting electrical power regenerated via application of retarding torque is also disclosed.

Description

technical field [0001] The present invention relates generally to regenerative braking in mining trucks, and more particularly to regenerative braking of mining trucks in response to electrical power demand in a power grid. Background technique [0002] Mass mining of materials is usually as energy-intensive as possible. In many open pit mines, a fleet of large mining trucks operates nearly continuously to transport ore and / or loads from the mining area to the dumping or processing site. Many of these mining trucks run on diesel powered engines. Both direct drive diesel engines and diesel-electric drive systems have been in use for many years. Fuel costs for mining trucks are high due to the many other heavy equipment systems. In addition, many mines are located in remote locations, and the cost of transporting fuel to the mining site adds significantly to operating expenses. Obtaining an adequate supply of fuel is challenging, though regardless of cost. For these and o...

Claims

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Application Information

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IPC IPC(8): E21C47/00B60L7/12B60K6/00
CPCY02T10/642Y02T10/7275B60L2200/36B60L2240/423B60L15/2009Y02T10/64Y02T10/72
Inventor B·G·拉默斯
Owner CATERPILLAR INC
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