Transmission And Light Electric Vehicle Motor Drive System Integrated Research On Control Strategy

In this article the process of development of pure electric vehicles, the reference to a large number of domestic as references. Development of electric vehicles, the development at home and abroad a brief overview of the current situation, and describes the overview of the development of automatic transmission, the system of the electric vehicle drive arrangement of the advantages and disadvantages of various forms, and use of electric pre-precursor to this article car driver layout.Motor for electric vehicle drive system of analysis and selection of three-phase AC induction motor for the drive motor, and analyzes the three-phase AC induction motor parameters. Transmission of the parameters match the power of the entire vehicle, economy and other parties have a very big impact, this article analyzes the parameters of the transmission system matching. The performance of battery electric cars ready for course play a decisive role, the paper analyzes the characteristics of various batteries, comprehensive analysis, this selection of lithium-powered batteries. As electric drive motor vehicle speed control characteristics, the paper analyzes the abolition of the clutch, drive motor and gearbox splinted input shaft directly to the feasibility of directly connected. This shift in the organization of electric vehicles is the shifting of non-executive body of the text so the design of the electric shift the structure of the implementing agencies are given the shifting parameters of the implementation of the motor. Given electric vehicle shift quality evaluation index. Research and analysis while transmission of light electric vehicles, motor integrated control strategy shift.Control law not only affects the shift of power and economy cars, while on the ride comfort and stability has a significant impact, so the paper analyzed the advantages and disadvantages of different shift schedule, combined with the traditional vehicle for block laws proposed the integration of electric vehicle shift control laws. Using a two-parameter shift schedule, the advantage is to control one-parameter shift schedule to a more accurate number than the target three-parameter shift schedule control function is much simpler.Finally, using the ADVISOR (Advanced Vehicle Simulator) simulation software for electric vehicles, integrated system to establish the corresponding simulation model, combined with shifting economic rules and Shift Schedule, select CYC_NEDC and CYC_ECE_EUDC_LOW cycle conditions for the dynamic nature of the electric car and the economic cycle of the simulation conditions. Through simulation analysis, the transmission of light electric vehicles, motor integration system shift schedule is reasonable, whether the performance of all aspects of the design to meet the requirements of this article, force and economy of the simulation conditions. The simulation analysis to verify the parameters match the drive system can meet the requirements of the relevant performance indicators and to compare the power of two shift schedule and economy, the shift verified the rationality of the law.