Battery system SOC (State Of Charge) estimation error determination method, device and vehicle
The embodiment of the invention discloses a battery system SOC (State Of Charge) estimation error determination method, device and a vehicle. The method comprises steps: based on a first SOC theoretical estimation value and a second SOC theoretical estimation value of a vehicle-mounted battery pack...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The embodiment of the invention discloses a battery system SOC (State Of Charge) estimation error determination method, device and a vehicle. The method comprises steps: based on a first SOC theoretical estimation value and a second SOC theoretical estimation value of a vehicle-mounted battery pack during a charging or discharging process and a rated battery capacity, the theoretical change capacity of the battery is acquired; current of the vehicle-mounted battery pack during the charging or discharging process is acquired and subjected to integral calculation to acquire the actual change capacity of the battery; and according to the actual change capacity of the battery and the theoretical change capacity of the battery, SOC estimation errors are determined. According to the method, thedevice and the vehicle, the SOC estimation errors can be acquired without a charging or discharging device, errors existing in the SOC estimation value can be obtained based on the actual change capacity and the theoretical c |
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