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A novel method for multi-motor synchronous system based on CAN bus is presented. A controller of the electric vehicle with multi-brushless-DC-motor system is designed, and the strategy with the function of synchronous control is also completed. According to the requirement and characteristic of this system, the control structure is proposed, the communication protocol is designed, and the flow charts...
Weak fault features of mechanical signals are usually immersed in noisy signals. A new wavelet method based on lifting scheme to match weak fault characteristics is proposed. In this method, an initial set of finite biorthogonal filters is modified by a lifting and dual lifting procedure alternately, and different lifting operators and dual lifting operators are obtained. The properties of the initial...
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