Gas range extender system used for electric automobile
A technology for electric vehicles and range extenders, which is used in electric vehicles, electric traction, vehicle energy storage, etc.
Inactive Publication Date: 2015-05-06
方大卫 +2
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Problems solved by technology
[0006] The technical problem to be solved by the present invention is to provide a gas range extender system for electric vehicles, which can increase the mileage of the electric vehicle; at the same time, because the gas engine is used as the range extender, the cost of use is low; finally, due to the gas engine and the battery Matching use improves the shortcoming of insufficient power of the gas engine
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[0016] See figure 1 As shown, the gas range extender system for electric vehicles is used in gas hybrid vehicles. The system is powered by a gas engine / generator system, and the power battery is connected in parallel with the high-voltage bus, and the main drive motor system is directly connected to the electric accessory system (electric air-conditioning compressor, cooling fan, cooling water pump, etc.), and battery (Battery) High voltage bus. Among them, the engine and the generator are directly connected through corresponding elastic devices, and the speed of the two is the same. It can be seen from the figure that each subsystem has a controller, which is connected to the vehicle control unit. The output power of the gas range extender system (APU) is realized by the range extender control unit controlling EMU (engine management system) and GCU (generator controller).
[0017] In addition, corresponding to this framework, there is a control method for realizing power-on an...
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The invention discloses a gas range extender system used for an electric automobile. The gas range extender comprises a gas engine and a generator. The gas engine is connected with the generator through a clutch. Power generated by the generator can be directly supplied to a motor to drive the automobile, and a battery can be charged when the battery SOC is low. A full electric vehicle can only run within a limited area due to a short driving mileage, and the driving mileage is increased by increasing the number of gas range extenders. As the gas is cheaper than gasoline and lower in emission, the purposes of increasing the mileage and reducing pollution can be achieved by the adoption of a gas range extender. Meanwhile, the gas engine is long in acceleration time and poor in dynamic property; however, the defects of the gas engine can be made up for through the battery after the gas engine and the battery are combined; in other words, the battery is in use during acceleration, and gas is in use during mileage. In this way, the mileage increasing type gas electric automobile is high in mileage and good in dynamic property. The gas range extender system can be used for the electric automobile, an architecture platform for the gas range extender used for the electric automobile is established, key parts can be shared, the cost of the finished vehicle and the operation cost are lowered, and the industrialization cost is lowered.
Description
Technical field [0001] The invention belongs to the field of new energy vehicles, and specifically relates to a gas range extender system for electric vehicles, which can be applied to pure electric vehicles directly driven by a motor. [0002] The present invention also relates to a control method used in the above-mentioned electric propulsion system. Background technique [0003] With the increasing scarcity of energy and increasing environmental pollution, electric vehicles with energy-saving and environmentally-friendly effects have gradually become the main direction of future automobile development, and extended-range electric vehicles are recognized as one of the mainstream technical directions of current electric vehicle development . Range-extended electric vehicles can solve the problem that electric vehicles cannot be industrialized on a large scale due to low power battery storage energy, short driving range, long charging time, etc., and meet the development needs of...
Claims
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IPC IPC(8): B60L11/02B60L50/10
CPCY02T10/7072
Inventor 方大卫黄晨东王铁
Owner 方大卫