The invention relates to the technical field of new energy automobile control, in particular to a range extender idling transition working condition control method, a range extender comprises an engine, an ISG, a GCU, an EMS and a range extender controller, and the method comprises the following steps that the range extender controller obtains target power and enters a power generation working condition; comprising the following steps: step 2.1, obtaining a first target torque; step 2.2, obtaining a preprocessed second target torque; step 2.3, obtaining a third target torque according to the second target torque and a pre-configured feed-forward torque, and transmitting the third target torque to the EMS to control engine output; 2.4, the range extender controller obtains the actual power of the ISG in real time, obtains a seventh target torque according to the actual power, replaces the first target torque in the step 2.2 with the seventh target torque, and returns to the step 2.2; the control mode of the feedforward torque is added, the problem that the target torque of the engine returns to zero when the idling working condition of the range extender is transited to the power generation working condition is solved, meanwhile, power closed loop is achieved, and the control precision is improved.
本发明涉及新能源汽车控制技术领域,具体而言,涉及一种增程器怠速过渡工况控制方法,增程器包括发动机、ISG、GCU、EMS以及增程器控制器,包括以下步骤:增程器控制器获取目标功率并进入发电工况;包括以下步骤:步骤2.1、得到第一目标扭矩;步骤2.2、得到预处理后的第二目标扭矩;步骤2.3、根据第二目标扭矩和预先配置的前馈扭矩,得到第三目标扭矩并将其传输至EMS以控制发动机输出;步骤2.4、增程器控制器实时获取ISG的实际功率,并根据实际功率得到第七目标扭矩并将其替换步骤2.2中的第一目标扭矩,返回步骤2.2;本申请增加了前馈扭矩的控制方式,解决了增程器怠速工况过渡至发电工况时发动机的目标扭矩回零的问题,同时实现了功率闭环,提高了控制精度。
Range extender idle speed transition working condition control method
一种增程器怠速过渡工况控制方法
2023-06-02
Patent
Electronic Resource
Chinese
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