Development of Automated Braking System for Collision Avoidance of Vehicles

2018 ◽  
Vol 10 (2) ◽  
Author(s):  
Vinod Handi ◽  
S. Jeyanthi ◽  
A. Giridharan
Keyword(s):  
Collision Avoidance ◽  
Distance Measurement ◽  
Ultrasonic Sensor ◽  
Experimental Results ◽  
Brake System ◽  
Braking System ◽  
Working Model ◽  
Frontal Collision ◽  
High Torque

The main objective of this paper is to develop an automated braking system to avoid frontal collision of the vehicle due to driver inattentiveness. The working model comprises of automated braking system which includes ultrasonic sensor, bike brake system, high torque motor, microcontroller, motor driver, battery, double acting cylinder and solenoid valves. An algorithm is proposed for automated braking system. The proposed working model is validated with experimental results. The ultrasonic sensor is validated for distance measurement and the sensor predicts the distance with an error of 3.31 percent.

Prediction of hyperelastic material sealing pressure using experimental and numerical analyses

2019 ◽  
Vol 52 (8) ◽  
pp. 717-727
Author(s):  
T Sukumar ◽  
BR Ramesh Bapu ◽  
B Durga Prasad
Keyword(s):  
Contact Pressure ◽  
Operating Conditions ◽  
Experimental Results ◽  
Hyperelastic Material ◽  
Brake System ◽  
Test Rig ◽  
Stopping Distance ◽  
Braking System ◽  
Sealing Pressure ◽  
Fuji Film

In commercial vehicle air braking system, leakage is one of the major problems and will affect the performance of the vehicle braking in terms of brake pedal travel and stopping distance. If there is any leakage in the brake system, the vehicle stopping distance will not meet the safety regulations. One of the main reasons for braking system leakage is ineffective sealing mechanism. The majority of sealing elements used in the air brake system are O-rings, lip seals, and gaskets. This article presents an experimental procedure for measuring the sealing pressure between an O-Ring and its mating parts. The contact pressure measurement was performed in a static condition by means of an experimental test rig using Fuji film. For the sealing pressure study, a test rig was properly designed to replicate the actual operating conditions. Contact pressure was evaluated by means of Fuji film interposed between the O-ring and its mating parts. The sealing pressure tests were carried out for different clamping load conditions. The experimental results were compared with the numerical result using the finite-element analysis (FEA). A good correlation was found between the experimental and the numerical results. The outcome from the experimental results will be useful for finalizing the hyperelastic material models, which are input to the FEA for future reference.

scholarly journals Wireless distance measurement by means of ultra-wideband chaotic radio pulses

2019 ◽  
Vol 30 ◽  
pp. 12005
Author(s):  
Elena Efremova ◽  
Alexander Dmitriev ◽  
Lev Kuzmin ◽  
Manvel Petrosyan
Keyword(s):  
Statistical Analysis ◽  
Distance Measurement ◽  
Experimental Results ◽  
Ultra Wideband

A method for wireless distance measurement using ultrawideband chaotic radio pulses based on statistical analysis is proposed. Experimental results are discussed.

Collision-mitigation level of collision-avoidance braking system

2014 ◽  
Vol 7 (1) ◽  
pp. 1 ◽  
Author(s):  
Keisuke Suzuki ◽  
Hitoshi Tanaka ◽  
Yoshiki Miichi ◽  
Masami Aga
Keyword(s):  
Collision Avoidance ◽  
Braking System ◽  
Collision Mitigation

scholarly journals Wireless UGV for Target Tracking and Obstacle Detection using Live Surveillance

2019 ◽  
Vol 8 (6S2) ◽  
pp. 384-386
Keyword(s):  
Target Tracking ◽  
Distance Measurement ◽  
Obstacle Detection ◽  
Ultrasonic Sensor ◽  
Prototype Model ◽  
Live Video ◽  
Ip Camera ◽  
Complete Set ◽  
Set Up

our aim is to develop a project that will benefit society. But nowadays it is employed to assist human in surveillance, rescue and recovery missions. This paper presents the prototype model of an UGV which is operated wirelessly through manual navigation commands based on the live video captured from the IP camera mounted on the board. The distance measurement is done by the Ultrasonic sensor from the obstacle and displayed in the LCD. The target tracking as well as attacking is done based on the obstacle and environment situation monitored in the live video. This complete set up and working of the UGV is described further in this paper

Vision-Based Efficient Collision Avoidance Model Using Distance Measurement

2021 ◽  
pp. 191-202
Author(s):  
A.F.M Saifuddin Saif ◽  
Zainal Rasyid Mahayuddin ◽  
Haslina Arshad
Keyword(s):  
Collision Avoidance ◽  
Distance Measurement

Master cylinder pressure reduction logic for cooperative work between electro-hydraulic brake system and anti-lock braking system based on speed servo system

2020 ◽  
Vol 234 (13) ◽  
pp. 3042-3055
Author(s):  
Lu Xiong ◽  
Wei Han ◽  
Zhuoping Yu ◽  
Jian Lin ◽  
Songyun Xu
Keyword(s):  
Feedback Control ◽  
Closed Loop ◽  
Servo System ◽  
Brake System ◽  
Extreme Condition ◽  
Pressure Reduction ◽  
Cylinder Pressure ◽  
Master Cylinder ◽  
Braking System ◽  
Hydraulic Brake

As one feasible solution of brake-by-wire systems, electro-hydraulic brake system has been made available into production recently. Electro-hydraulic brake system must work cooperatively with the hydraulic control unit of anti-lock braking system. Due to the mechanical configuration involving electric motor + reduction gear, the electro-hydraulic brake system could be stiffer in contrast to a conventional vacuum booster. That is to say, higher pressure peaks and pressure oscillation could occur during an active anti-lock braking system control. Actually, however, electro-hydraulic brake system and anti-lock braking system are produced by different suppliers considering brake systems already in production. Limited signals and operations of anti-lock braking system could be provided to the supplier of electro-hydraulic brake system. In this work, a master cylinder pressure reduction logic is designed based on speed servo system for active pressure modulation of electro-hydraulic brake system under the anti-lock braking system–triggered situation. The pressure reduction logic comprises of model-based friction compensation, feedforward and double closed-loop feedback control. The pressure closed-loop is designed as the outer loop, and the motor rotation speed closed-loop is drawn into the inner loop of feedback control. The effectiveness of the proposed controller is validated by vehicle experiment in typical braking situations. The results show that the controller remains stable against parameter uncertainties in extreme condition such as low temperature and mismatch of friction model. In contrast to the previous methods, the comparison results display the improved dynamic cooperative performance of electro-hydraulic brake system and anti-lock braking system and robustness.

Study and Application of Electronic Technology in Automobile Brake System

2014 ◽  
Vol 1049-1050 ◽  
pp. 646-648
Author(s):  
Xiao Ling Mo
Keyword(s):  
Rapid Development ◽  
Present Situation ◽  
Brake System ◽  
Electronic Technology ◽  
Braking System ◽  
Vehicle Technology ◽  
Vehicle Security

Vehicle braking system in vehicle security plays an important role.In recent years, with the progress of vehicle technology and improvement of the car speed, the rapid development of electronic technology provides a more broad space of development to the braking system. Based on the use of electronic technology in automobile braking system present situation as the research object, the application of electronic technology in automobile braking system has carried on the detailed exploration and research, to promote the further study of electronic technology in automobile braking system and the application.

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