Design and Analysis on the Anti-Lock Braking Control System of a Four-Wheel Vehicle

2014 ◽  
Vol 599-601 ◽  
pp. 864-869 ◽  
Author(s):  
Xi Xia Liu ◽  
Rui Wang ◽  
Lei Yuan
Keyword(s):  
Control System ◽  
Dynamic Mode ◽  
Tire Model ◽  
Vehicle Dynamic ◽  
Slip Ratio ◽  
Matlab Simulink ◽  
Straight Line ◽  
Braking Distance ◽  
Braking Control ◽  
Set Up

A PID Anti-lock Braking Control system has been designed according to the principle and method of vehicle dynamic. A vehicle dynamic mode which includes tire model, the controller model and braking model has been set up by the MATLAB/Simulink software. The vehicle straight line braking condition has been simulated by using the model, compared and analysed the influence of slip ratio and braking distance by the system, the results show that the design was effective and feasible which also can achieve the goal of prevent wheels locking.

The Vehicles ESP Test System Based on Active Braking Control

2012 ◽  
Vol 588-589 ◽  
pp. 1552-1559
Author(s):  
Lu Zhang ◽  
Guo Ye Wang ◽  
Guo Yan Chen ◽  
Zhong Fu Zhang
Keyword(s):  
Control System ◽  
Test System ◽  
Stability Control ◽  
Control Test ◽  
Control Performance ◽  
Vehicle System ◽  
Braking Control ◽  
Set Up ◽  
The Stability ◽  
Driving Stability

This paper proposes an active braking control dynamical system in order to establish a safe and efficient vehicle driving stability control test system. Aiming at Chery A3 sedan, set up the active braking control dynamic simulation system base on MATLAB/Simulink. Adopting the brake driving integration ESP control strategy, analyze and verify the stability control performance of independent vehicle system and vehicle ESP test system based on active braking control respectively in under steering and excessive steering two test conditions. The analyzing results indicate that the test system based on active braking control can effectively assist vehicle travelling in the absence of ESP control or ESP control system failure; when vehicle has ESP control system, the driving stability control performance of this system and independent vehicle system has remarkable consistency. The active braking control system provides a basis for research of vehicle driving stability control test.

The Vehicles ESP Safe Test System Based on Aid Wheels Breaking Control Vehicle System

2012 ◽  
Vol 605-607 ◽  
pp. 1710-1716
Author(s):  
Lu Zhang ◽  
Guo Ye Wang ◽  
Feng Zhu Yu ◽  
Zhong Fu Zhang
Keyword(s):  
Control System ◽  
Test System ◽  
Stability Control ◽  
Vehicle System ◽  
Vehicle Stability Control ◽  
Study Results ◽  
Braking Control ◽  
Set Up ◽  
Control Principle ◽  
Performance Research

The structure of the aid wheels braking control vehicle system is projected, and the system dynamic model is set up. Based on the Matlab/Simulink, establish the dynamic simulation system of the aid wheels braking control vehicle system for the Chery A3 car. Using the brake / drive integrated ESP control principle, based on the simulation model, respectively simulate and analyze the ESP control performances of the vehicle system and the aid wheels braking control vehicle system in different simulation conditions, under steer and over steer. The study results indicate that, based on the aid wheels braking control vehicle system, when there is no ESP control or ESP control system failure, the system can ensure the safety of vehicle effectively; and when with ESP control system, the ESP control performances of the aid wheels braking control vehicle system and the vehicle system have remarkable consistency. The aid wheels braking control vehicle system provides a basis for the vehicle stability control performance research.

Hazard Anticipatory Autonomous Braking Control System Based on 2-D Pedestrian Motion Prediction

2015 ◽  
Vol 27 (6) ◽  
pp. 636-644 ◽  
Author(s):  
Kazuhiro Ezawa ◽  
◽  
Pongsathorn Raksincharoensak ◽  
Masao Nagai ◽  
◽  
...  
Keyword(s):  
Control System ◽  
Avoidance Performance ◽  
Motion Prediction ◽  
Current Position ◽  
Simulation Experiments ◽  
First Order ◽  
Straight Line ◽  
Active Safety System ◽  
Braking Control ◽  
Typical Scenario

<div class=""abs_img""><img src=""[disp_template_path]/JRM/abst-image/00270006/05.jpg"" width=""300"" /> The focused scenario</div>This paper discusses 2-dimensional (2-D) pedestrian motion prediction and autonomous braking control for enhancing the collision avoidance performance of an active safety system. The paper targets a typical scenario involving a pedestrian walking toward a parked vehicle on a crowded urban road. The pedestrian is not expected to continue walking in a straight line. Conventional first-order motion prediction accuracy alone is not enough to predict the pedestrian motion because prediction is based on the pedestrian’s current position and velocity within a finite time. We formulated a 2-D pedestrian motion model of the parked vehicle based on learning the measured trajectory of pedestrians in the same scenario. We then designed an autonomous braking control system based on whether the vehicle will overtake a pedestrian. We evaluated the validity of the proposed autonomous braking control system in simulation experiments.

scholarly journals Adjustable Gain Enhanced Fuzzy Logic Controller for Optimal Wheel Slip Ratio Tracking in Hard Braking Control System

2021 ◽  
Vol 19 (3) ◽  
Author(s):  
Paulinus Chinaenye Eze ◽  
Bonaventure Onyekachi Ekengwu ◽  
Nnaemeka Christopher Asiegbu ◽  
Thankgod Izuchukwu Ozue
Keyword(s):  
Fuzzy Logic ◽  
Control System ◽  
Fuzzy Logic Controller ◽  
Wheel Slip ◽  
Slip Ratio ◽  
Braking Control

Research and Simulation of ABS Control Method

2015 ◽  
Vol 733 ◽  
pp. 749-753 ◽  
Author(s):  
Wei Zhang ◽  
Guan Neng Xu ◽  
Xue Xun Guo ◽  
Wen Zhang
Keyword(s):  
Fuzzy Control ◽  
Pid Control ◽  
Control Method ◽  
Point Of View ◽  
Effective Control ◽  
Control Methods ◽  
Slip Ratio ◽  
Ratio Curve ◽  
Braking Distance ◽  
Set Up

Based on the ABS model of a single wheel system, the traditional logic threshold, PID and fuzzy control method have been used to study the control system of commercial vehicle’s ABS. As the most important task of commercial vehicle’s ABS is to prevent the two front (steering) wheels from locking, the slip ratio should be controlled strictly in the safe range. A very short time of locking may cause the failure of steering, so control method which can keep slip ratio in the secure scope accurately can help vehicle avoid the danger of runaway. Set up the model on Simulink platform. Then, use the three control methods to control the ABS. By comparing and analyzing the processes and results under the control methods, find an appropriate way that can provide the most secure and effective control. From the perspective of processes (slip ratio changes), the simulations under the three control methods show the PID control gives the best slip ratio curve. The curve is almost coinciding with the ideal slip ratio curve. The oscillation of slip ratio given by fuzzy control is the most sever. From the point of view of the results (braking distance), the braking system with PID control has the shortest braking distance while with the fuzzy control has the longest. That is not to say fuzzy control is not advanced but the actual experiences difficult to get. And with the long response time, the fuzzy control is not suitable for commercial vehicle’s ABS. As a result and with the development and decreasing cost of PID controller, it is competitive in today’s ABS market.

Digital Electro-Hydraulic Proportional Control for Bulldozer Working Device

2010 ◽  
Vol 40-41 ◽  
pp. 771-773
Author(s):  
Qing Hua Cao
Keyword(s):  
Control System ◽  
Dynamic Characteristic ◽  
Transmission System ◽  
Control Technology ◽  
Centralized Control ◽  
Proportional Control ◽  
Matlab Simulink ◽  
Operating Condition ◽  
Braking Control ◽  
Working Device

In order to improve the steering and braking of the bulldozers, electro-hydraulic proportional control technology is adopted without change the transmission system of bulldozer, two hydraulic rams are used to control the steering and braking valves in both sides of bulldozer, one electromagnetic direction valve to select controlling side, and proportional reduced valve to control the pressure of hydraulic ram. Then Matlab/Simulink to imitate the dynamic characteristic is used, The single stick steering and braking control system designed improve the maneuverability and operating condition of bulldozer. The result of this paper can apply to practice directly and use for reference for other engineering machine as to single stick centralized control.

Reliability Analysis of a Metro Braking Control System based on Fuzzy GO Method

2020 ◽  
Vol 16 (11) ◽  
pp. 1826
Author(s):  
Li Zheng ◽  
Yang Jianwei ◽  
Yao Dechen ◽  
Wang Jinhai ◽  
Pang Qicheng
Keyword(s):  
Control System ◽  
Reliability Analysis ◽  
Braking Control

scholarly journals Optimization and Enhancement of Charging Control System of Electric Vehicle Using MATLAB SIMULINK

2021 ◽  
Vol 1105 (1) ◽  
pp. 012004
Author(s):  
R H Ali Faris ◽  
A A Ibrahim ◽  
N B Mohamad wasel ◽  
M M Abdulwahid ◽  
M F Mosleh
Keyword(s):  
Control System ◽  
Electric Vehicle ◽  
Matlab Simulink ◽  
Charging Control

Use of a Catecholamine Sensor in the Control of an Artificial Heart System

1997 ◽  
Vol 20 (1) ◽  
pp. 37-42 ◽  
Author(s):  
K. Mabuchi ◽  
T. Chinzei ◽  
Y. Abe ◽  
K. Imanishi ◽  
T. Isoyama ◽  
...  
Keyword(s):  
Control System ◽  
Plasma Proteins ◽  
Artificial Heart ◽  
Circulatory System ◽  
Reference Electrode ◽  
Mock Circulatory System ◽  
Real Time Measurement ◽  
Artificial Hearts ◽  
Set Up ◽  
Catecholamine Concentration

An electrochemical sensor system to allow real-time measurement and feedback of catecholamine concentrations was developed for use in the control of artificial hearts. Electrochemical analyses were carried out using a carbon fiber working electrode, an Ag-AgCI reference electrode, and a potentiostat. The operating parameters of the pneumatically-driven artificial heart system were altered in accordance with the algorithm for changes in the catecholamine concentration. The minimum detectable concentrations of both adrenaline and noradrenaline in a mock circulatory system using a phosphate-buffered solution were approximately 1-2 ng/ml (10-8 mol/L). An artificial heart control system utilizing this set-up performed satisfactorily without delay, although sensor sensitivity decreased when placed in goat plasma instead of a phosphate-buffered solution, due to the adsorption of various substances such as plasma proteins onto the electrodes. This study demonstrated the future feasibility of a feedback control system for artificial hearts using catecholamine concentrations.

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