Range extender of electric vehicle
A technology of electric vehicles and range extenders, which is applied in the field of range extenders, can solve the problems of low thermal efficiency of range extenders, and achieve the effects of improving battery life and thermal efficiency, good start-stop performance, and high thermal efficiency
Active Publication Date: 2021-03-26
WUHAN UNIV OF TECH
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Problems solved by technology
[0004] In view of this, it is necessary to provide a range extender for electric vehicles to solve the problem of low thermal efficiency of the range extender
Method used
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Experimental program
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Embodiment 1
[0036] like figure 1 , figure 2 As shown, Embodiment 1 of the present invention provides an electric vehicle range extender, hereinafter referred to as the range extender, including a gas pipeline, a fuel pipeline, an engine 3 and a fuel cell stack 4; the gas pipeline includes an intake turbine 11. Intake distribution valve 12, exhaust gas distribution valve 13, exhaust pipeline 14 and heat exchanger 15;
[0037] The intake turbine 11 communicates with the inlet of the intake distribution valve 12, and one outlet of the intake distribution valve 12 communicates with the inlet of the cathode channel 43 of the fuel cell stack 4, and the outlet of the fuel cell stack 4 The outlet of the cathode runner 43 communicates with the exhaust pipeline 14, the other outlet of the intake distribution valve 12 communicates with the intake manifold of the engine 3, and the exhaust manifold of the engine 3 communicates with the exhaust manifold of the engine 3. The inlet of the exhaust gas ...
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The invention relates to a range extender of an electric vehicle. The range extender comprises a gas pipeline, a fuel pipeline, an engine, a fuel cell stack and a generator, wherein the gas pipeline comprises a gas inlet turbine, a gas inlet distribution valve, a tail gas diverter valve, a gas exhaust pipeline and a heat exchanger; the air inlet turbine is communicated with an air inlet distribution valve, one outlet of the air inlet distribution valve is communicated with a fuel cell stack, the fuel cell stack is communicated with an exhaust pipeline, the other outlet of the air inlet distribution valve is communicated with an engine, the engine is communicated with a tail gas diverter valve, and one outlet of the tail gas diverter valve is communicated with the exhaust pipeline. The other outlet of the tail gas diverter valve is communicated with an exhaust pipeline through a heat exchanger; the heat exchanger is arranged at the fuel cell stack and used for heating the fuel cell stack. The engine and the fuel cell are combined to supply power to the vehicle-mounted battery, meanwhile, the fuel cell is heated through tail gas waste heat of the engine, and the overall heat efficiency is improved.
Description
technical field [0001] The invention relates to the technical field of range extenders, in particular to a range extender for electric vehicles. Background technique [0002] At present, pure electric vehicles have problems such as short cruising range, long charging time, and unstable service life. There is still a large room for development of hybrid vehicles. The series hybrid vehicle is composed of three parts: engine, generator and electric motor. The three parts are connected in series to form the vehicle power system. Energy conversion can become a direct output driving force. The thermal efficiency of the whole vehicle is relatively lower than that of other hybrid electric vehicles and electric vehicles. The advantage of series hybrid electric vehicles is that the engine is fixed at a better working condition, and the vehicle battery is used to provide driving energy. It can better cope with complex working conditions such as low speed, climbing, frequent starting, ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B60L50/70B60L50/71B60L50/72B60L58/30B60L58/34B60L58/33B60L50/61B60K6/00B60K13/04H01M8/04014H01M8/0612
CPCB60L50/70B60L50/71B60L50/72B60L58/30B60L58/34B60L58/33B60L50/61B60K6/00B60K13/04H01M8/04014H01M8/0618Y02E60/50
Inventor 刘毅辉潘卓飞王超朱天赐
Owner WUHAN UNIV OF TECH