Research on Electronic Differential System of Vehicle with Two In-Wheel Motors
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A plan of the electronic differential system(EDS) based on two in-wheel brushless DC motors was given taking the wireless following vehicle as a platform according to the motor control theory and the traditional EDS.The whole design of the controller was also given.Referring to the Ackerman-Jeantand turning model the model of EDS was established and the speed of two wheels was calculated independently during the turning with the EDS.Different work conditions,including the condition of the vehicle with the uniform speed,accelerating and decelerating,were researched to design the control strategy.Using two 55 W 4 poles motors as example,the simulation and the no-load experiment were done.Simulation and experimental results validate the rationality of the controller,comfirm the accuracy of the model and feasibility of the control strategy.