| Hybrid electric vehicle is a kind of low fuel consumption, low emission, long mileage and moderate price. It has the advantages of both pure electric vehicles and traditional fuel vehicles, Due to the comprehensive advantages in terms of technology, economy and environment, hybrid cars as the most practical and feasible green car program is recognized. The main research of this paper is the control strategy of hybrid electric vehicle, and the development of real vehicle control system. Control strategy is one of the key technologies of hybrid electric vehicle, the energy management of the vehicle and the precise control of the power system are the basis of the energy consumption and low emission of the hybrid power vehicle. The so-called control strategy is to achieve energy management and power systems. Control strategy according to the driver's behavior to determine the driver's intention, and then meet the driving needs.(1) In this paper, the development prospect of hybrid electric vehicle is studied, and the feasibility of using hybrid power techonology on SUV is analyzed.(2) The overall structure of the hybrid SUV is analyzed and designed. A vehicle, driver, engine, motor, battery, transmission, clutch and other models are established, and the simulation is carried out in matlab/simulink.(3) According to the design requirements of SUV, the control strategy of hybrid electric vehicle is studied. Establishing a fuzzy controller based on loading balance in matlab. And simulating the model in the third chapter.(4) The hardware and software of the controller hardware and software of the hardware and the software of the program are described in detail. And the designed control strategy is developed for brush wrote of real vehicle vehicle controller, road test, through comparative analysis of the experimental results and the simulation structure, to verify the feasibility of the control strategy, the effectiveness and practicability. |
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