Modeling and Analysis of Brake by Wire System in Electric Vehicle

2012 ◽  
Vol 249-250 ◽  
pp. 622-627 ◽  
Author(s):  
Lei Yan Yu ◽  
Wan Zhong Zhao ◽  
Jian Bo Yi
Keyword(s):  
Electric Vehicle ◽  
Optimization Design ◽  
Planetary Gear ◽  
Ball Screw ◽  
Modeling And Analysis ◽  
Response Characteristics ◽  
Frequency Domain Response ◽  
Parameter Optimization Design ◽  
And Control ◽  
Wire System

In order to improve performances of a virtual prototype, modeling and analysis are necessary before a system is produced and put into use. Firstly, structure and control schematics of electric vehicle with the steer by wire system and brake by wire system integrated are analyzed. Then, dynamics models of brake by wire system including the motor, planetary gear reducer, ball screw, etc. are built using Matlab software. Finally, effects of brake by wire system parameters such as motor parameters on system performance such as time domain and frequency domain response characteristics are analyzed using modern control theory. The results show that the modeling and analysis helps to find the performance sensitive parameters ,which will be used for parameter optimization design of brake by wire system.

Hybrid dynamic modeling and analysis of the electric vehicle planetary gear system

2020 ◽  
Vol 150 ◽  
pp. 103860
Author(s):  
Changzhao Liu ◽  
Xiansong Yin ◽  
Yinghua Liao ◽  
Yuanyuan Yi ◽  
Datong Qin
Keyword(s):  
Electric Vehicle ◽  
Dynamic Modeling ◽  
Planetary Gear ◽  
Gear System ◽  
Modeling And Analysis ◽  
Planetary Gear System

Dynamic Simulation and Control Strategy of Centrifugal Flying Shear

2009 ◽  
Vol 16-19 ◽  
pp. 278-282
Author(s):  
Jin Chun Song ◽  
Chang Zhou Wang ◽  
Dong Xu
Keyword(s):  
Dynamic Simulation ◽  
Control Strategy ◽  
Optimization Design ◽  
Three Dimensional ◽  
Three Dimensional Model ◽  
Production Lines ◽  
Electronic Control System ◽  
Working Principle ◽  
Parameter Optimization Design ◽  
And Control

Centrifugal Flying Shear is one of the most advanced equipments, which is widely used in tandem mill production lines because of its simple structure and high shearing precision. In this paper, the working principle of the centrifugal flying shear was introduced; the three-dimensional model of the centrifugal flying shear was established; the structural analysis and the dynamic simulation of the flying shear, with the movement rule and trajectory, were made based on MATLAB/SimMechanics and Solidworks/COSMOS Motion; and the control strategy of realizing scale shearing was proposed. The results obtained provide theoretical basis for design of the electronic control system, and facilitate further analysis of the shearing process and parameter optimization design of similar flying shears.

Outer Mesh and "Two Teeth Difference" Planetary Gear Transmission Parameter Optimization Design

2011 ◽  
Vol 308-310 ◽  
pp. 2237-2240
Author(s):  
You Dong Ye ◽  
Wen Xiang Zhang
Keyword(s):  
Parameter Optimization ◽  
Optimization Design ◽  
Planetary Gear ◽  
Working Life ◽  
Gear Transmission ◽  
Transmission Parameter ◽  
New Type ◽  
Parameter Optimization Design

Based on the structure and failure features of a new type of outer mesh and “two teeth difference” planetary gear transmission, a optimize method for the gear’s parameters is pointed out avoid of structure failure. The modification coefficients of the gear pairs are obtained through optimization design, so the sliding coefficient for the driving gear, driven gear and planetary gear tending to be equal. The relative slide between gears is reduced, and the working life of the structure is increased greatly.

Research on Compound Servo Drive Control of Heavy Loading Feed Table

2011 ◽  
Vol 188 ◽  
pp. 212-215
Author(s):  
Ze Ming Long ◽  
S.Q. Guo ◽  
G.J. Chen ◽  
F. Xiao
Keyword(s):  
Control Method ◽  
Hydraulic Cylinder ◽  
Ball Screw ◽  
Driver Assistance Systems ◽  
Servo Drive ◽  
Positioning Accuracy ◽  
Response Characteristics ◽  
Drive Control ◽  
And Control

This paper described a new compound servo drive structure and control method of heavy loading feeding table. Feed and location of table are controlled by ball screw through the Servo motor, who’s mainly responsibility is for the movement positioning accuracy of the feed table; Moreover, the table has added a set of servo-hydraulic cylinder driver assistance systems. The two systems are synchronized by the mutual control, the stress situation and wear of the ball screw servo feed with the heavy loading can be improved, thus the dynamic response characteristics and long-term positioning accuracy of the servo feed table can be improved ,addition to, the life of ball bearings and machine tools guide can be enhanced.

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