To improve the shift quality of dual motor driven electric vehicle with AMT, according to the characteristics of transmission without clutch and 3 driven modes, the shift control strategy without power interruption is designed. The simulation results shows that, the shift impact can be effectively reduced by the designed shift control strategy which contains precise control of driven motor and synchronizer work state, the shift process without power interruption is realized, the vehicle ride comfort and dynamic performance is ensured.
For systematical NVH development of vehicle (especially for mass-production passenger vehicles) electric powertrain, an optimized V-Model is designed and has been implemented in the entire component-vehicle development, which integrates three individual branches: simulation, validation and optimization. Compared to the V-models in the traditional sense, this optimized V-model is not only driven by requirement and task accomplishment but also maximum optimization of NVH system performance. In this case, developing procedures are capable to be efficiently iterated and the NVH engineering can be expanded into 3D with this V-model.
Based on the analysis of dynamic performance of vehicles and characteristics of engine and motor, the dynamic shift schedule for parallel hybrid electric vehicle (PHEV) equipped with automated mechanical transmission (AMT) is designed. The model is built up on the MATLAB/CRUISE co-simulation platform. The simulation results show that the designed shift schedule can achieve the good dynamic performance and shifting stability in the driving process.
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