The invention relates to a current measurement method and device, electronic equipment and a storage medium. The method comprises the steps: acquiring first resistance information and first temperature information of a DC resistor when a vehicle high-voltage loop is in a power-off state; acquiring second temperature information and voltage information of the direct-current resistor under the condition that the vehicle high-voltage loop is in a power-on state; acquiring second resistance information corresponding to the second temperature information based on the first temperature information, the second temperature information and the first resistance information; and determining current information based on the second resistance information and the voltage information. According to the technical scheme of the invention, the first resistor information is obtained before electrification, and the direct-current resistance at different temperatures is corrected after electrification, so that the influence of aging and temperature on the resistance value of the resistor in the use process is overcome, and the current measurement precision is improved. In addition, the method can be suitable for a non-low-temperature-drift resistor and a non-high-precision resistor, and the cost is reduced while the current measurement precision is ensured.
本发明涉及一种电流测量方法、装置、电子设备及存储介质,包括:在车辆高压回路处于断电状态的情况下,获取直流电阻的第一电阻信息和第一温度信息;在车辆高压回路处于通电状态的情况下,获取直流电阻的第二温度信息和电压信息;基于第一温度信息、第二温度信息和第一电阻信息,获得第二温度信息对应的第二电阻信息;基于第二电阻信息和电压信息,确定电流信息。根据本发明的技术方案,通过在通电前获取第一电阻信息并在通电后对不同温度下的直流电阻进行修正,克服了使用过程的老化和温度对电阻阻值的影响,提高了电流测量精度。另外,上述方案可以适用于非低温漂电阻和非高精度电阻,在保证了电流测量精度的同时,也降低了成本。
Current measurement method and device, electronic equipment and storage medium
一种电流测量方法、装置、电子设备及存储介质
2021-12-21
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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