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1.发明授权公开(公告)号：US11996537B2
公开(公告)日：2024-05-28
申请号：US17492986
申请日：2021-10-04
申请人： Caterpillar Inc.
发明人： Cameron Thomas Lane
IPC分类号： B60L50/75 , B60L7/10 , B60L58/40 , H01M8/04858 , H01M10/42 , H01M10/44 , H01M16/00 , H02J7/00 , H02J7/14 , H02J7/34
CPC分类号： H01M16/006 , B60L7/10 , B60L50/75 , B60L58/40 , H01M8/04932 , H01M8/04947 , H01M10/4257 , H01M10/44 , H02J7/0068 , H02J7/14 , H02J7/34 , B60L2200/40 , B60L2240/421 , B60L2240/54 , B60L2240/647 , H01M2010/4271 , H01M2220/20 , H01M2250/20
摘要： Operating a machine includes supplying electric power from a fuel cell to a power bus connected to an electric motor and an energy storage device in a machine operated at a work site, and determining an expected efficiency gain condition based on at least one of terrain data of the work site or machine activity data of the machine. Operating a machine further includes prognostically limiting a power output of the fuel cell based on the determining an expected efficiency gain condition, and charging the energy storage device during occurrence of the expected efficiency gain condition using at least one of a regenerative energy device or the fuel cell. The energy storage device may be discharged during prognostically limiting a power output of the fuel cell so as to share a load demand of the power bus between the fuel cell and the energy storage device. Related apparatus and control logic is also disclosed.
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公开(公告)号：US20230391225A1
公开(公告)日：2023-12-07
申请号：US17804959
申请日：2022-06-01
申请人： Caterpillar Inc.
发明人： Cameron Thomas Lane , Igor Strashny
IPC分类号： B60L58/13 , G01R31/382
CPC分类号： B60L58/13 , G01R31/382 , H01M2220/20
摘要： An electric machine and sitewide control system and method that use a trolley power system at a worksite is disclosed. The trolley power system allows electric machines at the worksite to draw power from the trolley power system to concurrently operate to perform tasks and recharge their batteries. This allows the batteries on electric machines to be smaller than they would otherwise be, since a fully charged battery is not needed when operational power can be drawn from the trolley power system. The trolley power system is segmented, such that if one segment is faulted, the other segments can operate to provide power to electric machines at the worksite. Additionally, a sitewide controller initiates operational changes, such as a change in speed, for the electric machines at the worksite to compensate for one or more faulted segments.
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公开(公告)号：US20230194281A1
公开(公告)日：2023-06-22
申请号：US17554810
申请日：2021-12-17
申请人： CATERPILLAR INC.
CPC分类号： G01C21/3469 , B60L58/12 , B60L58/16 , G01C21/3476 , G01C21/3492 , G01C21/3691 , G07C5/02 , G07C5/085
摘要： A control system for a battery electric machine (BEM) predicts the energy requirement of the BEM to complete one or more travel route segments along a path traversed by the BEM. The control system calculates the actual energy consumption of the BEM in completing the one or more travel route segments, compares the actual energy consumption with the predicted energy requirement, and updates the predicted energy requirement. The control system also maps the updated energy requirements for BEM’s to travel route segments to create a database of travel route segments mapped to energy requirements for particular BEM’s traveling over those segments. The control system may change the travel route segments for the BEM, tasks to be performed by the BEM, or repair or maintenance tasks to be performed on one or more travel route segments for the BEM based on a comparison of the predicted energy requirements with the actual energy consumption for the BEM traveling over the particular travel route segment.
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公开(公告)号：US20230196846A1
公开(公告)日：2023-06-22
申请号：US17554730
申请日：2021-12-17
申请人： CATERPILLAR INC.
CPC分类号： G07C5/006 , B60L58/16 , B60L58/12 , G07C5/0808 , G07C5/085 , G01C21/3469 , G01C21/3691
摘要： A control system is programmed for monitoring the health and charge of batteries used to power a battery electric machine (BEM) or other heavy equipment and determining when maintenance, service, or replacement should be performed for the batteries as a function of data related to travel route segments over which the BEM or other heavy equipment is operated. The control system is programmed to receive historical information mapping the performance and energy consumption of a BEM or other heavy equipment, such as battery state-of-charge, power usage, battery state-of-health, and number of charge cycles for a battery supplying power to the BEM or other heavy equipment operating over a travel route segment, and instruct an operator to replace or perform maintenance on the batteries if the difference between present and historical performance exceeds a threshold level.
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公开(公告)号：US12067809B2
公开(公告)日：2024-08-20
申请号：US17554730
申请日：2021-12-17
申请人： CATERPILLAR INC.
CPC分类号： G07C5/006 , B60L58/12 , B60L58/16 , G01C21/3469 , G07C5/0808 , G07C5/085 , G01C21/3691
摘要： A control system is programmed for monitoring the health and charge of batteries used to power a battery electric machine (BEM) or other heavy equipment and determining when maintenance, service, or replacement should be performed for the batteries as a function of data related to travel route segments over which the BEM or other heavy equipment is operated. The control system is programmed to receive historical information mapping the performance and energy consumption of a BEM or other heavy equipment, such as battery state-of-charge, power usage, battery state-of-health, and number of charge cycles for a battery supplying power to the BEM or other heavy equipment operating over a travel route segment, and instruct an operator to replace or perform maintenance on the batteries if the difference between present and historical performance exceeds a threshold level.
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公开(公告)号：US20230166632A1
公开(公告)日：2023-06-01
申请号：US17537405
申请日：2021-11-29
申请人： Caterpillar Inc.
IPC分类号： B60L58/13 , G01R31/382 , B60L58/16
CPC分类号： B60L58/13 , G01R31/382 , B60L58/16
摘要： A system can assign a machine to dispense material at designated areas along a route at a worksite. For example, the machine can be an electric water truck on a mine site, and the electric water truck can be assigned to spray water at areas along a route to control dust on the mine site. The system can verify that the machine is carrying enough material to dispense along the assigned route. The system can also verify that the battery of the machine is charged to a level sufficient to power travel of the machine through the assigned route and to power operations to dispense the material, based at least in part on a changing amount and/or weight of the material as the machine progresses along the route.
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