Extended-range-electric-vehicle power system and control method thereof
A technology for electric vehicles and power systems, applied in electric vehicles, battery/fuel cell control devices, motor vehicles, etc., can solve the problems of shortening the life of the power battery and the power of the range extender can not fully follow, so as to improve the service life and reduce the Constant or smooth effect of power output and absorption for frequent charging and discharging
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[0019] The present invention will be further described with reference to the accompanying drawings and embodiments. The range-extended electric vehicle power system and its control method provided by the present invention are as follows figure 2 with image 3 Shown.
[0020] figure 2 The composition structure of the embodiment of the present invention is illustrated. This embodiment includes an extender, a power regulator, a power battery system, a DC bus, a drive motor controller, a drive motor, and wheels.
[0021] The range extender includes engine, engine ECU, ISG motor, and ISG motor controller. The engine is a 1.6L gasoline engine, and the ISG motor is a permanent magnet synchronous motor with a rated power of 30KW. The ISG motor and the engine are coaxially rigidly connected. When the extender is working, the ISG motor is first used as a motor to drive the engine to start, and then the engine drives the ISG motor to generate electricity, and the current is delivered to t...
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