Research on Active Vibration Reduction of Electric Vehicle Transmission System Using Sliding Mode Control
There are typical electromechanical coupling phenomena and underdamping characteristics in the transmission system of electric vehicles.The vibration and noise caused by electromechanical coupling effect become one of the main concerns in the de-sign and control of the transmission system of electric vehicles.To solve the problem of resonance between the motor and the trans-mission system,a two-mass model and a motor control model are established in this paper.In order to avoid the electric car cruis-ing at idle speed and the motor and the drive train in the resonant frequency under the condition,by means of high performance permanent magnet synchronous motor in synovial control and field oriented control,when the system will be in the resonant fre-quency,slightly increased the speed of fast system deviates from the resonant frequency to achieve the goal of lower resonance.When the system is about to be at the resonance frequency,the angular velocity will be shifted by about(25～35)rad/s,and the resonance acceleration response of the system will be significantly reduced.The proposed control strategy has good effectiveness and robustness in reducing the vibration of automobile transmission system.
Electric VehicleActive Vibration ReductionSliding Model Control
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