Virtual Simulation&Modeling Analysis Method for the Transient Impact of Pure Electric Passenger Vehicle
In order to evaluate the Clunk noise level of pure electric passenger vehicle under the condition of sudden pressing/releasing of the accelerator pedal(tip in/tip out)in the early stage of vehicle product development,a multi-body dynamic model of the vehicle is established considering the clearance between the splines,shaft teeth,half shaft ball cage and bearings in the transmission system.The time-domain load of the bearings is calculated using the model,and the time-domain vibration acceleration signal of the key points on the reducer housing is obtained by combining the finite element analysis method.The accuracy of the model is verified by comparing it with the experimental results.An analysis model for Clunk noise in the transmission system and a parameter tuning method are proposed to evaluate the Clunk noise level of pure electric passenger vehicles in the early planning stage.
Electric passenger vehicleTransmission systemClearanceMulti-body dynamicTransient responseClunk noise
万方数据
维普
