The invention provides electrified vehicle control using the battery state of charge and a power capability strategy. A vehicle and control method include a traction battery, a temperature sensor, current sensor, and voltage sensor associated with the traction battery, an electric machine powered by the traction battery to provide propulsive power to the vehicle, and a controller configured to control at least one of the electric machine and the traction battery in response to a battery state of charge (SOC) estimated using a battery model having parameters including a first resistance in series with a second resistance and a capacitance in parallel to the second resistance. The battery model parameters are adjusted during vehicle operation using a Kalman filter and reinitialized to new values in response to a vehicle key-on, in response to a change in the battery current exceeding a corresponding threshold, and/or in response to any of the parameter values crossing an associated limit.
本公开提供“使用电池荷电状态和电力容量策略的电动化车辆控制”。车辆和控制方法包括:牵引电池;与所述牵引电池相关联的温度传感器、电流传感器和电压传感器;电机,其由所述牵引电池供电以向所述车辆提供推进动力;以及控制器,其被配置为响应于使用具有参数的电池模型估计的电池荷电状态(SOC)而控制所述电机和所述牵引电池中的至少一个,所述参数包括与第二电阻串联的第一电阻和与所述第二电阻并联的电容。电池模型参数在车辆操作期间使用卡尔曼滤波器进行调整,并且响应于车辆钥匙接通、响应于电池电流的变化超过对应阈值、和/或响应于参数值中的任一个越过相关联的极限,而被重新初始化为新值。
ELECTRIFIED VEHICLE CONTROL USING BATTERY STATE OF CHARGE AND POWER CAPABILITY STRATEGY
使用电池荷电状态和电力容量策略的电动化车辆控制
2022-01-25
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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