摘要

In order to improve the anti-slip ability of independent wheels drive electric vehicle communicated in controller area network Bus, an acceleration slip regulation called "direct limit torque control" was proposed. At first, the 2-degree of freedom vehicle model, the permanent magnet synchronous motor fitting model and the CAN communication model have been established; then, the feasibility of the direct limit torque control was proved by compute simulation; at last, the reality control effect of this control strategy was verified by the accelerated test of a front wheels independent drive electric vehicle on bisectional roads. Simulation and test results indicate that, only using the motor speed and torque feedback, the strategy can realize anti-slip control. It not only make the slip ratio close to the optimum value, but also avoid the motor output torque change drastically, which reduce the motor control strength and the drive system impact, apply to independent wheels drive electric vehicle with controller area network communication.

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