Electromechanical Dynamic Modeling and Analysis of the Integrated Motor-Planetary Gear System on Electric Vehicle
A new type of integrated motor-planetary gear system configuration for electric vehicles is proposed.In this configura-tion,the bearing support at the output end of the motor is cancelled,the output shaft of the motor is directly connected with the sun gear and supported by it.In view of the new configuration,the electromechanical coupling dynamic model of the motor planetary gear system is established.The dynamic characteristics of the system under the process of stable speed and variable speed are stud-ied,and the electromechanical coupling mechanism of the integrated system is revealed.It is found that:due to the symmetry of the planetary gear mechanism,the removal of bearing support at the output end of the motor will not significantly worsen the sys-tem dynamic characteristics,but can significantly improve the system dynamic characteristics when the symmetry of the planetary gear mechanism is destroyed.Thus the feasibility of the proposed configuration is verified.
Electric VehiclesIntegrated Motor-Planetary Gear SystemElectromechanical CouplingDynamics
万方数据
维普
