Commercial Vehicle Braking System Definitions

2002 ◽  
Author(s):  
Keyword(s):  
Commercial Vehicle ◽  
Braking System

Hysteresis Compensation Control Strategy for Pneumatic ABS System of Commercial Vehicle and HIL Test Validation

2013 ◽  
Vol 694-697 ◽  
pp. 1545-1548
Author(s):  
Jong Chol Han ◽  
Chang Fu Zong ◽  
Hong Yu Zheng
Keyword(s):  
Control Strategy ◽  
Test Bench ◽  
Commercial Vehicle ◽  
Simulation Software ◽  
Hardware In The Loop ◽  
Test Results ◽  
Hysteresis Compensation ◽  
Braking System ◽  
Vehicle Active Safety ◽  
Hysteresis Characteristics

A control strategy for pneumatic ABS(Anti-lock Braking System) of commercial vehicle has been developed and validated by combining with Trucksim simulation software and by using hardware-in-the-loop test bench for hysteresis characteristics compensation. The test results show that the ABS control strategy satisfies the control requirements for system hysteresis characteristics, and improve the performance of pneumatic ABS system for commercial vehicle effectively, thus vehicle active safety is increased.

Analysis of Pressure Response Characteristics and Influencing Factors of the Automatic Pressure Regulating Valve in Electronic-Controlled Pneumatic Braking System of Commercial Vehicle

2021 ◽  
Author(s):  
Hanwei Bao ◽  
Zaiyu Wang ◽  
Xiaoxu Wei ◽  
Gangyan Li
Keyword(s):  
High Speed ◽  
Commercial Vehicle ◽  
Structural Parameters ◽  
Solenoid Valve ◽  
Pressure Response ◽  
Response Characteristics ◽  
Braking System ◽  
Automatic Pressure ◽  
Simulation And Experiment ◽  
Working Principle

Abstract Automatic pressure regulating valve is the core pressure regulating element in electronic-controlled pneumatic braking system of commercial vehicle, its pressure response characteristics directly affect the real-time and rapid pressure regulation. In this paper, the influence of structural parameters of high-speed solenoid valve on its pressure response characteristics is studied. By analyzing the working principle and structure of high-speed solenoid valve, the mathematical model was established by AMESim. Through the combination of simulation and experiment the correctness of the model is verified. Finally, according to the influence law of key structural parameters in high-speed solenoid valve on the pressure response characteristics of automatic pressure regulating valve, a set of optimized parameters are obtained to realize the improvement and optimization of the pressure response characteristics of the automatic pressure regulating valve.

Simulation and HIL Test for Proportional Relay Valve of Commercial Vehicle Pneumatic EBS

2013 ◽  
Vol 437 ◽  
pp. 418-422
Author(s):  
Jong Chol Han ◽  
Wei Qiang Zhao ◽  
Chang Fu Zong ◽  
Hong Yu Zheng
Keyword(s):  
Control Algorithm ◽  
Test Bench ◽  
Commercial Vehicle ◽  
Simulation Tool ◽  
Hardware In The Loop ◽  
Test Results ◽  
Commercial Vehicles ◽  
Hysteresis Characteristic ◽  
Braking System ◽  
And Control

A simulation tool for proportional relay valve of commercial vehicle pneumatic EBS (Electronically controlled Braking System) has been developed using MATLAB/Simulink environment and validated by testing on hardware-in-the-loop test bench focused on its pressure hysteresis characteristic. The simulation and test results show that the simulation model for proportional relay valve characteristics is reasonable and reliable, and it can be used for hardware and control algorithm development of pneumatic EBS for commercial vehicles.

Vehicle braking force distribution with electronic pneumatic braking and hierarchical structure for commercial vehicle

2018 ◽  
Vol 232 (4) ◽  
pp. 481-493 ◽  
Author(s):  
Hongyu Zheng ◽  
Shenao Ma ◽  
Yahui Liu
Keyword(s):  
Hierarchical Structure ◽  
Commercial Vehicle ◽  
Control Method ◽  
Estimation Method ◽  
Least Square ◽  
Linear Matrix ◽  
Force Distribution ◽  
Brake Pedal ◽  
Braking System ◽  
Braking Force

Brake by wire that allows a number of braking functions exists on commercial vehicles under the name electronic pneumatic braking system, which can improve braking comfort and safety of commercial vehicle. The design of braking force distribution control method has drawn much more attention. Considering structure characteristics of electronic pneumatic braking system, a control method with a three-layer hierarchical structure is proposed. The first layer presents an estimation method towards vehicle mass and centre of gravity combining Kalman filter with recursive least square. The second layer is developed by designing a fixed relationship between the brake pedal displacement and vehicle braking deceleration. A deceleration control method that only uses brake pedal displacement as input is applied to make the vehicle follow the desired deceleration. The third layer includes a braking force distribution control method between the front and rear axles. The vehicle deceleration can be achieved with a smooth axle load transfer process based on linear matrix inequality. In addition, the controllers of wheel slip rate and valve hysteresis compensation are designed to improve control accuracy and efficiency. Utilizing a hardware-in-the-loop simulation test rig of electronic pneumatic braking system, the experiment results show that the control method can improve the braking performance of vehicle.

Development and Verification of Electronic Braking System ECU Software for Commercial Vehicle

2013 ◽  
Author(s):  
Dong Zhang ◽  
Changfu Zong ◽  
Shengnan Yang ◽  
Weiqiang Zhao
Keyword(s):  
Commercial Vehicle ◽  
Braking System

scholarly journals Two Wheeler Aero Braking System

2018 ◽  
Vol 7 (3.34) ◽  
pp. 339
Author(s):  
T V B Babu ◽  
R Ram Kumar ◽  
G Saravanan ◽  
V Vishnu Annamalai ◽  
L Giridharan
Keyword(s):  
Drag Force ◽  
Transport System ◽  
Commercial Vehicle ◽  
Thrust Force ◽  
Accident Rate ◽  
Stopping Distance ◽  
Braking System ◽  
Starter Motor ◽  
Two Wheeler ◽  
Day By Day

The most commonly used transport system in our country is two wheeler transport system. In that there are varieties of vehicle with vast engine specifications which generate more power. As well as there are many advanced braking system which is invented to reduce or stop the vehicle Even though, the accident rate is increasing day by day. One of the main reasons for the accident is the stopping distance of the vehicle.This project is mainly based on reducing the stopping distance of the vehicle and balancing the vehicle at emergency conditions. We achieve that by creating a drag force against the thrust force. This drag is created with the help of wings which is fixed on both sides of the vehicle. The wings are operated by rack and pinion mechanism which was connected to the starter motor. The starter motor is activated by the driver by means of switch. By implementing our project in commercial vehicle we can reduce the rate of accidents occurring in our day to day life. 

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