The invention relates to a method (100) for estimating the available charge capacity of an electrical energy store. The method includes determining a new nominal initial charge capacity (300) to a slightly degraded energy store and a maximum initial estimated error (200, 400); determining one or more nominal charge capacities (350) and one or more maximum estimated errors (250, 450) of the degraded energy store; interpolating a curve of variation of the nominal charge capacity (150) and the maximum lower estimation error (130) and the maximum upper estimation error (230) between an interpolation point of the nominal charge capacity (300, 350) and an interpolation point of the maximum estimation error (200, 250, 400, 450); for a current state of degradation of the energy store, a nominal state of charge (150) and a current available charge capacity are estimated with a lower estimated allowance (130) and the current available charge capacity is estimated with an upper estimated allowance (230). The invention also relates to a device for carrying out the method and to a vehicle having such a device.
本发明涉及用于估计电蓄能器的可用充电容量的方法(100)。实施:确定新的至稍微退化的蓄能器的公称初始充电容量(300)和最大初始估计误差(200、400);确定退化的蓄能器的一个或多个公称充电容量(350)和一个或多个最大估计误差(250、450);对公称充电容量(150)和最大的下估计误差(130)和上估计误差(230)的变化曲线在公称充电容量(300、350)的插值点和最大估计误差(200、250、400、450)的插值点之间进行插值;针对蓄能器的当前退化状态,带有下估计预留量(130)地估计公称荷电状态(150)和当前可用充电容量以及以带有上估计预留量(230)地估计当前可用充电容量。本发明也涉及用于实施所述方法的装置和具有这样的装置的车辆。
Method and device for estimating available charge capacity of electrical energy store
用于估计电蓄能器的可用充电容量的方法和装置
2022-05-27
Patent
Electronic Resource
Chinese
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