Reduced central processing unit load and memory usage battery state of charge calculation
    12.
    发明授权
    Reduced central processing unit load and memory usage battery state of charge calculation 有权
    减少中央处理单元负载和内存使用电池的充电状态计算

    公开(公告)号:US08972091B2

    公开(公告)日:2015-03-03

    申请号:US13794975

    申请日:2013-03-12

    Abstract: A vehicle having a battery pack with cells grouped into subsets and at least one controller programmed to charge and discharge the battery pack is disclosed. A control output is generated based on a pack state of charge derived from each cell's initial state of charge at vehicle activation and an electric charge accumulated or spent by less than all of the cells of each of the subsets since vehicle activation. A method of estimating battery pack state of charge is disclosed in which a pack state of charge is calculated by identifying subsets of cells having similar properties and calculating an electric charge accumulated or spent for fewer than all of the cells of each subset. A cell state of charge is calculated for all cells based on an average electric charge accumulated or spent. The pack state of charge is based on all the cell states of charge.

    Abstract translation: 公开了一种车辆,其具有将电池分组成子集的电池组和至少一个被编程为对电池组充电和放电的控制器。 基于从车辆激活时的每个电池的初始充电状态导出的电池组状态产生控制输出,以及由于车辆启动而累积或消耗的每个子集的小于所有子单元的电荷。 公开了一种估计电池组电荷状态的方法,其中通过识别具有相似性质的单元的子集来计算电池组的电荷状态,并且计算每个子集的少于所有单元的累积或耗散的电荷。 基于累积或消耗的平均电荷计算所有单元的电池充电状态。 电池的充电状态是基于充电的所有电池状态。

    REDUCED CENTRAL PROCESSING UNIT LOAD AND MEMORY USAGE BATTERY STATE OF CHARGE CALCULATION
    13.
    发明申请
    REDUCED CENTRAL PROCESSING UNIT LOAD AND MEMORY USAGE BATTERY STATE OF CHARGE CALCULATION 有权
    减少中央处理单元负载和内存使用电池计费状态

    公开(公告)号:US20140277866A1

    公开(公告)日:2014-09-18

    申请号:US13794975

    申请日:2013-03-12

    Abstract: A vehicle having a battery pack with cells grouped into subsets and at least one controller programmed to charge and discharge the battery pack is disclosed. A control output is generated based on a pack state of charge derived from each cell's initial state of charge at vehicle activation and an electric charge accumulated or spent by less than all of the cells of each of the subsets since vehicle activation. A method of estimating battery pack state of charge is disclosed in which a pack state of charge is calculated by identifying subsets of cells having similar properties and calculating an electric charge accumulated or spent for fewer than all of the cells of each subset. A cell state of charge is calculated for all cells based on an average electric charge accumulated or spent. The pack state of charge is based on all the cell states of charge.

    Abstract translation: 公开了一种车辆,其具有将电池分组成子集的电池组和至少一个被编程为对电池组充电和放电的控制器。 基于从车辆激活时的每个电池的初始充电状态导出的电池组状态产生控制输出,以及由于车辆启动而累积或消耗的每个子集的小于所有子单元的电荷。 公开了一种估计电池组电荷状态的方法,其中通过识别具有相似性质的单元的子集来计算电池组的电荷状态,并且计算每个子集的少于所有单元的累积或耗散的电荷。 基于累积或消耗的平均电荷计算所有单元的电池充电状态。 电池的充电状态是基于充电的所有电池状态。

    Battery control system for a hybrid or electric vehicle

    公开(公告)号:US11545728B2

    公开(公告)日:2023-01-03

    申请号:US17089024

    申请日:2020-11-04

    Abstract: A vehicle includes an electric machine, a battery, an electrical circuit, an overcharge limit device, and a controller. The electric machine is configured to propel the vehicle. The battery has a plurality of cells and is configured to provide electrical power to the electric machine. The electrical circuit is configured to deliver the electrical power from the battery to the electric machine. The overcharge limit device is configured to individually disconnect each of the plurality cells from the circuit in response to an internal pressure of a respective cell exceeding a pressure threshold. The controller is programmed to, in response to detecting a first set of parameters that are indicative of a first of the cells being disconnected from the electrical circuit via the overcharge limit device, discontinue control the first of the cells.

    Plug-in charge current management for battery model-based online learning

    公开(公告)号:US11498446B2

    公开(公告)日:2022-11-15

    申请号:US16735330

    申请日:2020-01-06

    Abstract: A vehicle includes a battery that is rechargeable using an external power source coupled to the vehicle. The vehicle includes a controller that is programmed to estimate parameters of the battery using a parameter estimation algorithm. The controller is programmed to change a charging current when connected to the external power source to provide an input to the parameter estimation algorithm that is sufficiently dynamic such that the parameter estimation algorithm converges to an accurate solution.

    EKF state relay strategy in battery online identification

    公开(公告)号:US11345254B2

    公开(公告)日:2022-05-31

    申请号:US16721213

    申请日:2019-12-19

    Abstract: A vehicle includes a battery and a controller. The controller is programmed to executed a parameter estimation strategy for the battery during time intervals when the current flowing through the battery is sufficiently dynamic. During periods of generally constant current, the parameters are derived from the last valid parameters from the parameter estimation strategy. During periods of generally constant current in which a battery temperature and/or a state of charge of the battery changes by a predetermined amount, the parameters are derived from historical parameter values.

    BATTERY CONTROL SYSTEM FOR A HYBRID OR ELECTRIC VEHICLE

    公开(公告)号:US20220140300A1

    公开(公告)日:2022-05-05

    申请号:US17089024

    申请日:2020-11-04

    Abstract: A vehicle includes an electric machine, a battery, an electrical circuit, an overcharge limit device, and a controller. The electric machine is configured to propel the vehicle. The battery has a plurality of cells and is configured to provide electrical power to the electric machine. The electrical circuit is configured to deliver the electrical power from the battery to the electric machine. The overcharge limit device is configured to individually disconnect each of the plurality cells from the circuit in response to an internal pressure of a respective cell exceeding a pressure threshold. The controller is programmed to, in response to detecting a first set of parameters that are indicative of a first of the cells being disconnected from the electrical circuit via the overcharge limit device, discontinue control the first of the cells.

    Battery cell rebalancing method
    19.
    发明授权

    公开(公告)号:US11167661B2

    公开(公告)日:2021-11-09

    申请号:US16589898

    申请日:2019-10-01

    Abstract: A vehicle includes an electric machine, a battery, and a controller. The electric machine is configured to deliver power to wheels to drive the vehicle. The battery has an array of cells that are configured to deliver electrical power to the electric machine. The controller is programmed to, in response to a charge imbalance within the array of cells, simultaneously discharge a number of cells within the array based on a temperature of the controller.

    MIXED BATTERY PACK CONTROL
    20.
    发明申请

    公开(公告)号:US20210078444A1

    公开(公告)日:2021-03-18

    申请号:US16570655

    申请日:2019-09-13

    Abstract: A vehicle system is provided with a battery and a controller. The battery includes a first module having a first capacity and a second module. The controller programmed to responsive to indication that the second module has been replaced by a new module with a second capacity that is greater than the first capacity for a corresponding state of charge (SOC), adjust a second SOC of the new module such that a maximum SOC value of the new module aligns with a maximum SOC value of the first module. The controller is further programmed to balance the first module and the new module separately.

Patent Agency Ranking