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公开(公告)号：US20220332214A1
公开(公告)日：2022-10-20
申请号：US17234486
申请日：2021-04-19
摘要： A traction battery arrangement includes a string of cells and bus bars, a coil wrapped around one of the bus bars, and a controller. The controller drives AC current over a swept range of frequencies into the one of the bus bars via the coil, and receives voltage data from at least one of the cells that results from the AC current.
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公开(公告)号：US11981216B2
公开(公告)日：2024-05-14
申请号：US17147608
申请日：2021-01-13
发明人： Baojin Wang , Chingchi Chen , Benjamin A. Tabatowski-Bush , Aaron Walker , Rui Wang , Xianzhi Gong , Xu Wang , John Paul Gibeau
IPC分类号： B60L3/00 , G01R31/00 , G01R31/327
CPC分类号： B60L3/0046 , G01R31/006 , G01R31/3275
摘要： A power system includes a battery and a controller. The controller inhibits charge of the battery according to voltage or current values sensed before and after contactors electrically connected to the battery are commanded to open and indicating that a leakage resistance associated with one of the contactors increases after the one of contactors is commanded to open, and a duration of a continuous voltage drop across another of the contactors after the another of the contactors is commanded to open exceeds a threshold.
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公开(公告)号：US11161428B2
公开(公告)日：2021-11-02
申请号：US16458906
申请日：2019-07-01
发明人： Rui Wang , Xiao Guang Yang , Yuan Zhang , Xu Wang , Xianzhi Gong
摘要： An electrified vehicle includes a traction battery that is operated according to a state of charge of the traction battery. A controller is programmed to operate the traction battery according to the state of charge of the traction battery and, in response to completion of a charge cycle of the traction battery, generates an adaptive relaxation time and an adaptive compensation voltage of the state of charge that changes with a temperature and a charge rate of the traction battery. The controller is further programmed to, in response to expiration of the adaptive relaxation time after completion of the charge cycle, update the state of charge to a value corresponding to a voltage defined by a difference between a measured voltage of the traction battery and the adaptive compensation voltage.
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公开(公告)号：US20210001745A1
公开(公告)日：2021-01-07
申请号：US16458906
申请日：2019-07-01
发明人： Rui Wang , Xiao Guang Yang , Yuan Zhang , Xu Wang , Xianzhi Gong
摘要： An electrified vehicle includes a traction battery that is operated according to a state of charge. A controller is programmed to operate the traction battery according to a state of charge of the traction battery and, responsive to completion of a charge cycle, generates an adaptive relaxation time and an adaptive compensation voltage that changes with a temperature and a charge rate of the traction battery. The controller is further programmed to, responsive to expiration of the adaptive relaxation time after completion of the charge cycle, update the state of charge to a value corresponding to a voltage defined by a difference between a measured voltage of the traction battery and the adaptive compensation voltage.
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