The invention relates to a method for determining the state of charge of a battery of a motor vehicle (2), in particular of a low-voltage battery (14). The method comprises the following steps of (S100) detecting a start (IB) of the motor vehicle (2), (S300) generating a measurement signal (MS) for an electrochemical impedance spectroscopy by using a DC-DC converter (10) of the motor vehicle (2) when a start (IB) of the motor vehicle (2) is detected, and (S400) evaluating the electrical output voltage provided by the DC-DC converter (10) and the electrical terminal voltage of the battery in order to determine the state of charge (LZ) of the battery.
本发明涉及一种用于确定机动车辆(2)的特别是低压电池(14)的电池的荷电状态的方法,该方法包含以下步骤:(S100)检测机动车辆(2)的启动(IB),(S300)在检测到机动车辆(2)启动(IB)时,使用机动车辆(2)的DC‑DC转换器(10)产生用于电化学阻抗谱的测量信号(MS),以及(S400)评估由DC‑DC转换器(10)提供的电输出电压和电池的电端子电压,以便确定电池的荷电状态(LZ)。
Method for determining state of charge of low-voltage battery of motor vehicle
用于确定机动车辆的低压电池的荷电状态的方法
2021-04-13
Patent
Electronic Resource
Chinese
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