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The PWM solenoid is the critical component of the shift control system. To reduce the electronic flow and power consumption, as well as to offset the influence of the fluctuating voltage and temperature, research on the control characteristic of the PWM solenoid was conducted. After the introduction of the structure and usage of PWM solenoid, the flow equation when it is open and close was established...
In active bearing system, the synchronous periodic disturbances are mainly caused by the sensor run-out and mass unbalance. The rotational accuracy of rotor is mainly affected by this synchronous disturbance. To improve the rotational accuracy of magnetically levitated rotor, this paper proposed a new approach for simultaneous compensation of periodic disturbances in active magnetic bearings system...
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