Design And Development On Integrated Motor And Transmission Drive System For Light Electric Vehicle

In the light of pure electric vehicles, series hybrid, fuel cell electric vehicle development process, the drive system parameters and the structural arrangement and a reasonable match between the parameters of the power for electric cars, economy, and driving range and so on have a significant impact. Electric vehicle drive system is a key component of its characteristics determines the dynamic characteristics of electric vehicles, while the efficiency of its impact on the efficiency of electric vehicles is also very large. Design parameters of the system to study are to improve the performance of electric vehicles is one important means. Electric vehicle drive system for electric vehicles of power, driving range and so have a significant impact.This article describes the development of electric vehicles, various types of drive motor and transmission characteristics of the development status, introduced the domestic and international electric vehicle drive system of research priorities and directions.This paper studies the integration of electrical transmission scheme, the design layout of the motor transmission, analysis, and reverse gear clutch gear to cancel the feasibility of, and found widespread introduction of domestic non-clutch AMT's shifting process the problems and propose to solve the problem. This paper studied the shift without the clutch AMT's working principle, design the basic structure of the transmission.This article describes the light electric vehicle motor and transmission matching principle, induction motor is selected as the drive motor, and analyzes its operating characteristics, the design of the various parameters of the motor and transmission, and validates the argument is reasonable.This article describes a variety of current transmission shift common institutions, designed by shifting the motor-driven rack and pinion drive mechanism body and screws the two shifting bodies. Integrated drive system according to the requirements of selected institutions screw transmission mechanism as a shift, and calculated the parameters of screw drive mechanism in detail, analyzes the shift quality, the results show that the shifting mechanism has a good shift quality.This paper introduces the three-dimensional modeling, assembly and movement analysis of the basic knowledge to build a motor drive system gearbox integrated three-dimensional model, in the assembly after the analysis of the spatial and kinematics' simulation to verify the size of the drive system, the relationship between structure reasonable and advantages, transmission ratio and time parameters shift the correctness and feasibility.This article describes the transmission shaft strength and stiffness of a traditional checking theory, and the transmission input shaft and output shaft were static and modal analysis; validation case in the limit of its mechanical properties to meet the requirements will not be at work resonance situation. And get the first ten modes of order map, to further optimize the design of the shaft of the foundation.