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公开(公告)号：US20240006893A1
公开(公告)日：2024-01-04
申请号：US17855968
申请日：2022-07-01
申请人： Caterpillar Inc.
IPC分类号： H02J7/00 , B60R16/033
CPC分类号： H02J7/0013 , H02J7/0047 , H02J7/00304 , B60R16/033
摘要： A driving circuit to control/drive a contactor using a high-side driver integrated into the battery pack controller. The driver circuit may electrically isolate the controller pins of the battery pack controller (which interface the contactors) from the low-voltage digital processing core of the battery pack controller. The driver circuit may provide techniques to diagnose a fault by monitoring the voltage at the output of the driver as compared to the reference voltage. The driver circuit may include an electronic switch, such as a field-effect transistor, that is configured on the high side of the contactor to control voltage from an energy source to the contactor.
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2.发明申请公开(公告)号：US20200006956A1
公开(公告)日：2020-01-02
申请号：US16023175
申请日：2018-06-29
申请人： Caterpillar Inc.
摘要： A system for balancing battery cell charge in a battery array for an electrified machine is provided. The battery array includes a plurality of individual battery cells, or groups of battery cells. A plurality of cell monitors are in communication with the individual battery cells, or groups of battery cells, with the plurality of cell monitors being powered by the individual battery cells, or groups of battery cells. A battery controller of the system receives information about the individual battery cells, or groups of battery cells, from the plurality of cell monitors. The information traverses the plurality of cell monitors in a first pattern to the battery controller and, after a predetermined period of time or occurrence of a predetermined event, the information traverses the plurality of cell monitors in a second pattern that is different than the first pattern to the battery controller.
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公开(公告)号：US20230335814A1
公开(公告)日：2023-10-19
申请号：US17723841
申请日：2022-04-19
申请人： Caterpillar Inc.
IPC分类号： H01M10/48 , H01M10/613 , H01M10/615 , H01M10/625 , H01M10/63
CPC分类号： H01M10/486 , H01M10/482 , H01M10/613 , H01M10/615 , H01M10/625 , H01M10/63
摘要： A monitoring circuit for a battery system of a work machine includes a system controller configured to operate in a low power mode when the battery system is inactive, a sensing circuit element configured to produce an electrical sensor signal representative of an environmental parameter of the battery system, and a wakeup circuit configured to generate a controller activation signal when the sensor signal indicates that the environmental parameter is outside of a specified operating range. The system controller is configured to initiate a controller boot operation in response to the controller activation signal.
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4.发明授权公开(公告)号：US11018511B2
公开(公告)日：2021-05-25
申请号：US16023175
申请日：2018-06-29
申请人： Caterpillar Inc.
摘要： A system for balancing battery cell charge in a battery array for an electrified machine is provided. The battery array includes a plurality of individual battery cells, or groups of battery cells. A plurality of cell monitors are in communication with the individual battery cells, or groups of battery cells, with the plurality of cell monitors being powered by the individual battery cells, or groups of battery cells. A battery controller of the system receives information about the individual battery cells, or groups of battery cells, from the plurality of cell monitors. The information traverses the plurality of cell monitors in a first pattern to the battery controller and, after a predetermined period of time or occurrence of a predetermined event, the information traverses the plurality of cell monitors in a second pattern that is different than the first pattern to the battery controller.
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