公开(公告)号：US12040460B2

公开(公告)日：2024-07-16

申请号：US17059095

申请日：2019-10-25

申请人： Cummins Inc. ,  Pramod Suresh Magadi

发明人： Martin T. Books ,  Pramod Suresh Magadi ,  Erik L. Piper ,  John P. O'Brien ,  Duane J. Szymanski ,  Bradford K. O. Palmer ,  Subbarao Varigonda ,  Jaroslaw Leonarski ,  Joseph E. Paquette ,  Carl A. Jones

IPC分类号： H01M10/44 ,  B60L53/62 ,  G01R31/382 ,  H02J7/00

CPC分类号： H01M10/441 ,  B60L53/62 ,  G01R31/382 ,  H02J7/0018 ,  H02J7/0048

摘要： The present disclosure provides a method of selectively charging or discharging a system with multiple battery packs connected in parallel when at least one of the battery packs has a significantly different voltage or states of charge (SOCs) than the other battery packs. The method includes charging or discharging the battery pack(s) with a voltage or state of charge (SOC) farthest from a target value until the voltage(s) or SOC(s) is within a range of another battery pack at which point the battery packs may be connected and charging or discharging can resume for the set of connected packs. This process is repeated until all the battery packs are at a predetermined minimum or maximum voltage or SOC threshold. The present disclosure also provides a method for selectively operating and charging at least one of a plurality of battery packs depending on the respective states of the battery packs.

公开(公告)号：US20210226267A1

公开(公告)日：2021-07-22

申请号：US17059095

申请日：2019-10-25

申请人： Pramod Suresh Magadi ,  Cummins Inc.

发明人： Martin T. Books ,  Pramod Suresh Magadi ,  Erik. L. Piper ,  John P. O'Brien ,  Duane J. Szymanski ,  Bradford K.O. Palmer ,  Subbarao Varigonda ,  Jaroslaw Leonarski ,  Joseph E. Paquette ,  Carl A. Jones

IPC分类号： H01M10/44 ,  H02J7/00 ,  G01R31/382 ,  B60L53/62

摘要： The present disclosure provides a method of selectively charging or discharging a system with multiple battery packs connected in parallel when at least one of the battery packs has a significantly different voltage or states of charge (SOCs) than the other battery packs. The method includes charging or discharging the battery pack(s) with a voltage or state of charge (SOC) farthest from a target value until the voltage(s) or SOC(s) is within a range of another battery pack at which point the battery packs may be connected and charging or discharging can resume for the set of connected packs. This process is repeated until all the battery packs are at a predetermined minimum or maximum voltage or SOC threshold. The present disclosure also provides a method for selectively operating and charging at least one of a plurality of battery packs depending on the respective states of the battery packs.

公开(公告)号：US20230050505A1

公开(公告)日：2023-02-16

申请号：US17796804

申请日：2020-02-27

申请人： Cummins Inc.

发明人： Pramod Suresh Magadi

IPC分类号： B60L58/13 ,  B60L58/16 ,  B60L58/21 ,  H02J7/00 ,  B60L50/60 ,  H01M10/42 ,  G01R31/382

摘要： The present disclosure provides a system and method for selecting a battery pack that is used to pre-charge a high-voltage DC bus of an electric vehicle. A round-robin architecture is disclosed that prevents repeat selection of battery packs in order to prevent burnout of a resistor of the battery pack resulting from rapid subsequent pre-charging events. The system and method provided includes an easy solution that is scalable to a system with any number of battery packs, does not require any additional hardware, and is an inexpensive technique to protect an expensive component of the electric vehicle.