The invention discloses a power generation control method for an extended-range electric vehicle, which comprises the following steps: step S10, performing power-on initialization, loading high-voltage read on the whole vehicle, and enabling a driver to control the vehicle to run; s20, the battery state is monitored in real time through the VCU, whether the APU needs to be started or not is judged, if yes, an APU starting instruction is sent to the RCU through the VCU, the next step is carried out, and if not, judgment is repeated; s30, judging whether the engine is successfully started or not through the RCU, if yes, sending that the APU is successfully started to the VCU through the RCU, and executing the next step, and if not, repeating judgment; and S40, after the APU is successfully started, a start success flag bit is sent to the VCU, the VCU judges that the APU is successfully started after receiving the start success flag bit, and the VCU sends a power generation control mode which is a voltage control mode to the RCU. According to the invention, the operation capability of the whole vehicle after failure is effectively improved, the after-sales maintenance cost of the vehicle is reduced, the vehicle use experience of a driver is improved, the situation that the battery is not allowed to be charged due to extremely low environment temperature is avoided, and the service life of the battery is protected.

    本发明公开了一种增程式电动汽车发电控制方法,包括以下步骤:步骤S10,上电初始化,整车上高压ready,再使驾驶员操纵车辆行驶;步骤S20,通过VCU实时监控电池状态,并判断是否需要启动APU,若是则通过VCU向RCU发出启动APU指令,并进行下一步,若不需要则重复进行判断;步骤S30,通过RCU判断发动机是否启动成功,若是则RCU给VCU发送启动APU成功,并进行下一步,若否则重复进行判定;步骤S40,APU成功启动后,会给VCU发动启动成功标志位,VCU收到后判断APU已启动成功,VCU会给RCU发出发电控制模式为电压控制模式。本发明有效提升了整车故障后运行能力,降低车辆售后维护成本,提高了驾驶者的用车体验,也避免了环境温度极低电池不允许充电,保护了电池寿命。


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    Title :

    Power generation control method for extended-range electric vehicle


    Additional title:

    一种增程式电动汽车发电控制方法


    Contributors:

    Publication date :

    2024-12-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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