The invention relates to a control method of a plug-in hybrid power system. The method comprises the following steps that: when the SOC value of a battery pack is higher than a first threshold value,the battery pack provides power for a driving motor and a pure electric mode is entered if the vehicle speed is lower than or equal to a second threshold value, and a hybrid mode is entered if the vehicle speed is higher than a second threshold value; and when the battery SOC value of the battery pack is lower than or equal to the first threshold value, if the power generation amount of the engineis smaller than the energy required by automobile driving, a hybrid mode is started, and if the power generation amount of the engine is larger than the energy needed by automobile driving, an enginemode is started, and the engine generates surplus torque during braking to charge the battery pack by generating induction current. The method has the following advantages that it is guaranteed thatthe generator achieves power generation in the optimal and most stable state in the efficient power generation interval, in the three modes, energy is transmitted to the driving motor and then drivesthe front wheel to rotate, the energy is released and stored at the driving motor, and the beneficial effects are achieved in the aspects of economy and dynamic property.

    本发明涉及一种插电式混合动力系统的控制方法,当电池包的电池SOC值高于第一阈值时,如果车速低于或等于第二阈值时,电池包为驱动电机提供动力,进入纯电动模式;如果车速高于第二阈值时,进入混合模式;当电池包的电池SOC值低于或等于第一阈值时,如果发动机的发电量小于汽车驱动所需的能量,进入混合模式;如果发动机的发电量大于汽车驱动所需的能量,进入发动机模式,并且发动机在制动时产生多余力矩通过产生感应电流向电池包进行充电。本发明具有如下优点:保证发电机在高效发电区间内实现最优最稳定状态下的发电,在三种模式下,能量均传递至驱动电机,再驱动前轮转动,能量在驱动电机处释放并存储,在经济性以及动力性方面取得有益效果。


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    Title :

    Control method of plug-in hybrid power system


    Additional title:

    一种插电式混合动力系统的控制方法


    Contributors:
    MA SHIYOU (author)

    Publication date :

    2020-07-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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