The invention relates to the technical field of automobile control, and particularly relates to a power control method of a plug-in hybrid electric vehicle. The power control method comprises the steps of detecting the residual oil quantity and the residual electric quantity; if the residual oil quantity is less than a second oil quantity set threshold value or the residual electric quantity is less than a second electric quantity set threshold value, entering a power limiting mode; otherwise, entering a normal mode; in the normal mode, if the residual oil quantity is less than a first oil quantity set threshold value, conducting low oil quantity reminding; if the residual electric quantity is less than a first electric quantity set threshold value, conducting low electric quantity reminding, wherein the first oil quantity set threshold value is greater than the second oil quantity set threshold value, and the first electric quantity set threshold value is greater than the second electric quantity set threshold value; in the normal mode, PReq_Final is equal to PReq; and in the power limiting mode, the PReq_Final is a smaller value in the PReq and the PMax. According to the scheme,the probability that the vehicle is stopped in a dangerous area due to fuel exhaustion and power exhaustion can be reduced. The problem that an engine cannot be started after fuel oil is exhausted andelectricity is exhausted and then refueling is conducted is solved, the energy loss is reduced, and the economy is improved.

    本发明涉及汽车控制技术领域,具体涉及一种插电式混合动力汽车的功率控制方法,包括检测剩余油量和剩余电量;若剩余油量小于第二油量设定阈值,或剩余电量小于第二电量设定阈值,则进入限功率模式;反之,则进入正常模式;正常模式下,若剩余油量小于第一油量设定阈值,则进行低油量提醒;若剩余电量小于第一电量设定阈值,则进行低电量提醒;第一油量设定阈值大于第二油量设定阈值,第一电量设定阈值大于第二电量设定阈值;正常模式下,P等于P;限功率模式下,P为P与P中的较小值。本方案能减小车辆燃油耗尽、电量耗尽断电停在危险区域的几率。解决燃油耗尽电量耗尽后再加油后无法启动发动机问题,同时降低能量损失,提高经济性。


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    Title :

    Power control method of plug-in hybrid electric vehicle


    Additional title:

    插电式混合动力汽车的功率控制方法


    Contributors:
    PENG HONGTAO (author) / CHEN MAN (author) / DU JIA (author)

    Publication date :

    2020-08-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



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