公开(公告)号：US09919702B1

公开(公告)日：2018-03-20

申请号：US15418365

申请日：2017-01-27

Applicant: GM Global Technology Operations LLC

Inventor： Konking Wang ,  Aniket P. Kothari ,  Brendan M. Conlon ,  Daniel R. Brouns ,  Cotrina C. Connolly

IPC: B60W20/40 ,  B60L11/14 ,  H02J7/00 ,  B60W20/13 ,  B60L11/18 ,  B60W20/50

CPC classification number: B60W20/40 ,  B60L11/14 ,  B60L11/1861 ,  B60L2240/12 ,  B60L2240/44 ,  B60L2240/545 ,  B60L2240/547 ,  B60W20/13 ,  B60W20/50 ,  B60W2510/244 ,  B60W2510/246 ,  B60W2520/10 ,  B60W2710/021 ,  B60W2710/244 ,  B60Y2300/42 ,  B60Y2300/91 ,  B60Y2400/112 ,  H02J7/007 ,  Y10S903/93

Abstract: An inverter power module: selectively applies power from a battery to a permanent magnet (PM) electric motor; and selectively provides power output by the PM electric motor for the battery. A switch, when open, prevents power flow the inverter power module from the battery, and, when closed, enables power flow between the inverter power module and the battery. An adjustment module determines an SOC adjustment based on at least one of a vehicle speed and a temperature of the battery. A maximum module receives a first maximum SOC of the battery and that determines a second maximum SOC of the battery based on the first maximum SOC and the SOC adjustment. A clutch control module disengages a clutch, decoupling the PM electric motor from a transmission, when the switch is stuck closed and an SOC of the battery is greater than the second maximum SOC.

公开(公告)号：US20170282746A1

公开(公告)日：2017-10-05

申请号：US15247266

申请日：2016-08-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robert C. Baraszu ,  Daniel R. Brouns ,  Patrick E. Frost ,  Kurt M. Johnson

IPC: B60L11/18 ,  H02J7/00

CPC classification number: B60L11/1864 ,  B60L11/1861 ,  B60L2240/549 ,  B60L2240/80 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/7061

Abstract: A method for dynamically adjusting a battery current limit in a system having a battery pack includes determining a battery pack current as a charge current flowing into or a discharge current flowing from the battery pack, and also calculating a time-windowed average current for each of the charge current, the discharge current, and an RMS current of the battery pack. The battery current limit may be dynamically adjusted when any or all of the calculated time-windowed averages exceeds a corresponding calibrated control threshold. The battery current limit is a window-specific current limit that is greater than the calibrated control threshold and less than a static/fixed current limit for the battery pack. A system includes the battery pack, a sensor operable for measuring a current inflow/outflow to/from the battery pack, and a controller programmed to dynamically adjust the battery current limit using the above method.

公开(公告)号：US10160342B2

公开(公告)日：2018-12-25

申请号：US15247266

申请日：2016-08-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robert C. Baraszu ,  Daniel R. Brouns ,  Patrick E. Frost ,  Kurt M. Johnson

IPC: H02J7/00 ,  B60L11/18

Abstract: A method for dynamically adjusting a battery current limit in a system having a battery pack includes determining a battery pack current as a charge current flowing into or a discharge current flowing from the battery pack, and also calculating a time-windowed average current for each of the charge current, the discharge current, and an RMS current of the battery pack. The battery current limit may be dynamically adjusted when any or all of the calculated time-windowed averages exceeds a corresponding calibrated control threshold. The battery current limit is a window-specific current limit that is greater than the calibrated control threshold and less than a static/fixed current limit for the battery pack. A system includes the battery pack, a sensor operable for measuring a current inflow/outflow to/from the battery pack, and a controller programmed to dynamically adjust the battery current limit using the above method.