The Design On Intelligent Synchronous Transmission Control System Of Hybrid Electric Vehicle

With the increasingly lack of oil resources and at the request of environmentalsustainable development, energy conservation and emissions reduction have become themost important goal in the automobile industry. Although electric vehicle has outstandingadvantages in terms of energy conservation and emissions reduction, limited bytechnology and cost issues, it is difficult to market at current stage. As a compromisebetween traditional and electric vehicle, hybrid electric vehicle has great market potential.As the key component of hybrid vehicle, transmissions must have the character of energyconservation and environmental protection. A control system of intelligent synchronoustransmission without clutches is designed, which utilizes the servo characteristics ofPMSM and excellent speed adjustment of drive motor, can complete the gear shift in avery short period with less shock.Working principles of intelligent synchronous transmission and the FOC theory ofPMSM are introduced in detail. A mechanical model of intelligent synchronoustransmission and a math model of PMSM control system are built, and a self-adaptiveposition control method of PMSM is put forward. The rapidity and stability of PMSMposition control is proved through MATLAB simulation. With the support of thetheoretical analysis, the hardware and software of intelligent synchronous transmissioncontrol system are designed. Experiments of control system are designed, the resultsindicate the gear shift is rapid and stable, and meet the requirement of intelligentsynchronous transmission.