The invention discloses a control method of a range-extended vehicle, which comprises the following steps: acquiring the speed of the range-extended vehicle and the state of charge (SOC) of a power battery, if the range-extended vehicle is in a first running state, starting a range extender, and controlling the range extender to run at the highest efficiency point, the first running state refers to that the vehicle speed is larger than or equal to a first preset vehicle speed, the SOC is smaller than or equal to a first threshold value S1, the extended-range vehicle is in a constant-speed cruise state, and if the SOC is reduced to a target SOC lower limit value after the range extender runs at the highest efficiency point, the range extender is controlled to run at a first constant-speed power point. The invention further discloses a control system of the extended-range vehicle. According to the control method, the range extender runs at the highest efficiency point in the first running state, the fuel economy is improved, if the SOC requirement is not met, the range extender runs at the first constant speed power point, the generated power is improved, the situation that the driving experience is affected due to the fact that the range extender quits the constant speed cruise state is avoided, and then the fuel economy and the generated power are considered.
本申请公开了一种增程式车辆的控制方法,包括获取增程式车辆的车速和动力电池的荷电状态SOC,若增程式车辆处于第一运行状态,则启动增程器,并控制增程器在最高效率点运行,第一运行状态指:车速大于等于第一预设车速、荷电状态SOC小于等于第一阀值S1、且增程式车辆处于定速巡航状态,若增程器在最高效率点运行后,荷电状态SOC减少至目标SOC下限值,则控制增程器在第一定速功率点运行。本申请还公开了一种增程式车辆的控制系统。根据本申请的控制方法,第一运行状态时增程器在最高效率点运行,提高燃油经济性,若不满足荷电状态SOC需求,则在第一定速功率点运行,提高发电功率,避免退出定速巡航状态,影响驾驶体验,进而兼顾燃油经济性与发电功率。
Control method and control system for extended-range vehicle
一种增程式车辆的控制方法和控制系统
2023-03-14
Patent
Elektronische Ressource
Chinesisch
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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