The invention relates to an intelligent emergency starting system and method for an extended-range electric vehicle. The system comprises a storage battery which provides starting power for a range extender, and a two-way DC/DC, the low-voltage end of the two-way DC/DC is connected with the storage battery, the high-voltage end of the two-way DC/DC is connected with the range extender, and the two-way DC/DC is used for boosting after receiving the first signal and reducing the voltage after receiving the second signal; the system further comprises an electric quantity detection module which is used for detecting the residual electric quantity of the power battery and the storage battery, and a controller which outputs a first signal or a second signal according to the residual electric quantity of the power battery and the storage battery. The power output end of the range extender is connected with the power battery and the vehicle driving system. The system has the advantages that starting of the range extender is not limited by the electric quantity of the power battery any more; the link of storing electric quantity to the power battery is reduced, the overall energy conversion rate is improved, and the output power of the vehicle driving system is still controlled by the accelerator pedal.
本发明为一种增程电动汽车智能应急启动系统及方法,包括:蓄电池,为增程器提供启动电力;双向DC/DC,其低压端与蓄电池相连,高压端与增程器相连,在接收到第一信号后进行升压,在接收到第二信号后进行降压;电量检测模块,用于检测动力电池和蓄电池的剩余电量;控制器,根据动力电池和蓄电池的剩余电量输出第一信号或第二信号;所述增程器的电力输出端分别与动力电池和车辆驱动系统相连。本发明的优点是:増程器的启动不再受动力电池电量的限制;减少了存储电量到动力电池的环节,提高的整体的能量转换率,且车辆驱动系统的输出功率仍受油门踏板控制。
Intelligent emergency starting system and method for extended-range electric vehicle
一种增程电动汽车智能应急启动系统及方法
2022-01-04
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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