ELECTRIFIED POWERTRAIN WITH METHOD FOR DETERMINING BATTERY LIMITS BASED ON CELL FACTORS

    公开(公告)号:US20220271552A1

    公开(公告)日:2022-08-25

    申请号:US17184968

    申请日:2021-02-25

    Abstract: A method for adapting a usage level of a battery pack includes measuring cell sense data for each respective battery cell using a cell sense circuit, the cell sense data including a cell voltage, current, and temperature. The method includes processing the cell sense data, for each respective battery cell, through multiple battery state functions of a controller to generate numeric cell degradation values (CDVs). The battery state functions are calibrated relationships of the cell sense data to predetermined battery fault conditions. Thereafter, the method includes automatically adapting the usage level of the battery pack during operation of the battery pack, via the controller, based on the numeric CDVs. An electric powertrain system includes the battery pack, cell sense circuit, a rotary electric machine, and a controller configured to execute the above method.

    CONTROL OF THERMAL RUNAWAY EVENT IN BATTERY SYSTEM

    公开(公告)号:US20210143652A1

    公开(公告)日:2021-05-13

    申请号:US16677056

    申请日:2019-11-07

    Abstract: A method of controlling a thermal runaway event in a battery system having first and second battery modules. The method includes detecting a thermal runaway event in the first battery module, and, in response to the detection of the thermal runaway event, determining whether an electrical current is flowing through the first battery module. The method also includes electrically decoupling the first battery module from the second battery module in response to the detection of the thermal runaway event, if the current is not flowing through the first battery module. Furthermore, the method includes electrically connecting the second battery module to an electrical load to discharge the second module through the load, if the current is determined to be flowing through the first battery module or after decoupling the first module. Discharging the second battery module is intended to control propagation of the thermal runaway event through the second module.

    APPARATUS AND METHOD FOR CONTROLLING A CHARGE CURRENT
    4.
    发明申请
    APPARATUS AND METHOD FOR CONTROLLING A CHARGE CURRENT 审中-公开
    用于控制充电电流的装置和方法

    公开(公告)号:US20160107530A1

    公开(公告)日:2016-04-21

    申请号:US14519686

    申请日:2014-10-21

    Abstract: A method and system for controlling a current flow through a charge connector to a charging system includes a charge connector including a plug connectable to a power outlet to receive a current flow, the plug including a temperature sensor to measure an interface temperature at the plug and outlet interface, the charge connector including a coupler connectable to an inlet of the charging system, where one of a control module of the charge connector and a controller of the charging system is operable to control the current flow to an adjusted level determined by one of the interface temperature and a voltage drop at the plug. A communication link may be established by a coupler element connected to an inlet element to transmit signals between the control module and connector. The charge connector may be connectable to a charging system of a plug-in electric vehicle.

    Abstract translation: 用于控制通过充电连接器到充电系统的电流的方法和系统包括充电连接器,其包括可连接到电源插座以接收电流的插头,所述插头包括温度传感器以测量插头处的接口温度, 所述充电连接器包括可连接到所述充电系统的入口的耦合器,其中所述充电连接器的控制模块和所述充电系统的控制器之一可操作以将所述电流控制到由下列之一确定的调整水平: 接口温度和插头上的电压降。 可以通过连接到入口元件的耦合器元件建立通信链路,以在控制模块和连接器之间传输信号。 充电连接器可以连接到插电式电动车辆的充电系统。

    Control of thermal runaway event in battery system

    公开(公告)号:US11264815B2

    公开(公告)日:2022-03-01

    申请号:US16677056

    申请日:2019-11-07

    Abstract: A method of controlling a thermal runaway event in a battery system having first and second battery modules. The method includes detecting a thermal runaway event in the first battery module, and, in response to the detection of the thermal runaway event, determining whether an electrical current is flowing through the first battery module. The method also includes electrically decoupling the first battery module from the second battery module in response to the detection of the thermal runaway event, if the current is not flowing through the first battery module. Furthermore, the method includes electrically connecting the second battery module to an electrical load to discharge the second module through the load, if the current is determined to be flowing through the first battery module or after decoupling the first module. Discharging the second battery module is intended to control propagation of the thermal runaway event through the second module.

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