The invention discloses an energy recovery control method for a pure electric vehicle, and the design concept of the method is that the allowable energy recovery calibration power is obtained according to the current battery electric quantity and battery temperature, the consumed power under an accessory is obtained according to the information of the vehicle-mounted accessory, and the allowable energy recovery calibration power and the consumed power are combined to obtain a theoretically required power value. When the electric quantity is high, the larger or smaller theoretical energy recovery power is adjusted through the preset regulation and control interval and the maximum value of the single voltage, the situation that energy recovery is interrupted due to the fact that the single voltage is too high due to the fact that the calibrated power is too large is prevented, and therefore it is ensured that the battery is in a sustainable energy recovery mode close to the capacity limit. The energy recovery contribution rate under the working condition of high electric quantity can be improved.
本发明公开了一种纯电动汽车能量回收控制方法,本发明的设计构思在于,根据当前电池电量、电池温度获取允许的能量回收标定功率,并根据车载附件的信息获得附件下消耗功率,将二者结合求取理论所需功率值。在电量较高时,通过预设的调控区间以及单体电压最大值,对偏大或偏小的理论能量回收功率进行调整,防止因标定功率过大导致单体电压过高而中断能量回收,以此确保电池处于一种可持续的接近能力极限的能量回收模式,有利于提升高电量工况下的能量回收贡献率。
Energy recovery control method for pure electric vehicle
纯电动汽车能量回收控制方法
2021-09-17
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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