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The Design and Research of EPS Mechanical Structure

Author: CheMingXia
Tutor: WangZhiHui; WangJunFeng
School: Wuhan University of Technology
Course: Mechanical Engineering
Keywords: EPS mechanical steering technics route capacity experiments
CLC: U463.4
Type: Master's thesis
Year: 2012
Downloads: 114
Quote: 0
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Abstract


Electric Power Steering is a new type auto steering system which utilizes motor’s running torque to provide assist torque directly. Compared with traditional mechanical and hydraulic steering machines it has many advantages which any other doesn’t have. It has such advantages of high freedom degree, simple structure, saving energy and so on. The turning torque provided by motor can transfer to mechanical steering machine through gimbal, and then transfer to left and right cartwheels. So that drives auto turning. Therefore Auto Electric Power Steering System is considered as a new high—tech which related automobile development and automobile electricity tightly. It has a very wide applying foreground. Which is one direction of assist turning development.EPS is mainly consisted of electromotor parts and mechanical parts. The core cell in electrical parts is ECU, it can decide whether it need assist-power and power’s magnitude. mechanical parts are consisted of gear shaft, rack and so on. It is the most fundamental and most important place. So this topic will display the research on the EPS mechanical structure and I will put forward the viewpoints.This paper mainly discusses the development process of power assisted system from automobile happened and the development process of mechanical part. At the same time carefully analyze them different structure, compare with them besides, Next introduce the working theory of EPS and mechanical structure. Specific structure consisted of mechanical structure. Going through the working theory we divide the mechanical structure and choose key mechanical part. We just analyze the key parts and simulate the working process. It is consisted of the working element of mechanical parts; the reason why we choose that mechanical part, the design, the order of manufacturing.Using the professional software we make the manufacturing card. After finished manufacturing we need doing some assembly working. At last in order to check whether the meshing is right or wrong, we must do that meshing experiments and the last whole vehicle test, we build up EPS experiment bench. Going through the data we get, we compare with station standard. And give a future draft of EPS. Besides providing theory support for further simulation research and testing. In order to provide simulation system research and capability theory basis, the results show that:the technics parameter and figure location precision can reach EPS experiments’request and industry’s standard and provide technical support.

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CLC: > Transportation > Road transport > Automotive Engineering > Automotive structural components > Steering system
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