Development of HILS System for ABS ECU of Commercial Vehicles

Park, Doh-Young; Hwang, Don-Ha; Lee, Kichang; Jeongwoo, Jeon; Kim, Yong Joo; Cho, Jeongmok; Joh, Joongseon

doi:10.4271/2001-01-3186

Cited by 8 publications

(2 citation statements)

References 2 publications

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“…Therefore, plenty of researches on tire-road friction coefficient estimation and identification have been and are being focused. For instance, it is well known that ABS is an active safety control system by utilizing the potential road-tire adhesion to improve vehicle deceleration, handling, and stability during braking [1]. In order to utilize the available tire forces on variable roads as much as possible, the identification of peak tire-road friction coefficient and its optimal slip ratio is a critical task for guaranteeing the performance of ABS [2].…”

Section: Introductionmentioning

confidence: 99%

Development and Verification of the Tire/Road Friction Estimation Algorithm for Antilock Braking System

Zhao

Zhang

Zhu

2014

Mathematical Problems in Engineering

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Road friction information is very important for vehicle active braking control systems such as ABS, ASR, or ESP. It is not easy to estimate the tire/road friction forces and coefficient accurately because of the nonlinear system, parameters uncertainties, and signal noises. In this paper, a robust and effective tire/road friction estimation algorithm for ABS is proposed, and its performance is further discussed by simulation and experiment. The tire forces were observed by the discrete Kalman filter, and the road friction coefficient was estimated by the recursive least square method consequently. Then, the proposed algorithm was analysed and verified by simulation and road test. A sliding mode based ABS with smooth wheel slip ratio control and a threshold based ABS by pulse pressure control with significant fluctuations were used for the simulation. Finally, road tests were carried out in both winter and summer by the car equipped with the same threshold based ABS, and the algorithm was evaluated on different road surfaces. The results show that the proposed algorithm can identify the variation of road conditions with considerable accuracy and response speed.

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Section: Introductionmentioning

confidence: 99%

Development and Verification of the Tire/Road Friction Estimation Algorithm for Antilock Braking System

Zhao

Zhang

Zhu

2014

Mathematical Problems in Engineering

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“…For this purpose, HILS was constructed. A commercial vehicle under braking, pneumatic brake system of it, test roads and antilock brake components can be substituted for it [4] [5]. Recently Hardware In-the-Loop Simulation methods are becoming popular especially in automotive industry because it can reduce development time and costs.…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of antilock brake controller for pneumatic brake system

Lee

Jeongwoo

Hwang

et al.

38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003.

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Antilock Brake System (ABS), equipped in a vehicle, increases safety because it prevents wheels from being locked up and minimizes the danger of skidding, allowing the vehicle to stop in a straight line. ABS also allows drivers to maintain steering control of a vehicle during emergency braking of it. So the vehicle can avoid obstacles or another vehicles on the road. This paper deals with an Antilock Brake Controller for full-air brake system, which is widely used in heavy vehicles such as buses and trucks. Two methods of evaluating the ABS controller and the algorithms were focused on. -Laboratorial test and field test. For laboratorial test, a Hardware In-the-Loop Simulator (HILS) was made. This includes actual pneumatic brake hardware between the controller input and vehicle dynamics output, thus simulates a whole bus under braking in real time. This paper describes how the HILS of Antilock Brake System of a bus was constructed, and how this HILS can be used for evaluating the antilock brake algorithms and Electronic ControlUnit (ECU) in laboratory. Using HILS, we could achieve functional tests needed in an ABS controller in a short time. As a result we could reduce time and cost needed for developing the controller for pneumatic brake. For field test, a bus equipped with an ABS controller was driven and stopped in the test field, where severe road conditions exists. This paper also describes configurations of the data acquisition system for it. Finally we compared the results of the laboratorial HILS tests with those field tests and proved the HILS is a good method for developing new system especially in automotive applications. Keywords -Antilock Brake System; HILS(Hardware In-the-Loop Simulation), Field test, Pneumatic Brake System I.This work has been supported by the Dual Use Technology Projects in Korea.0-7803-7883-0/03/$17.00

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Electric Vehicle Control and Driving Safety Systems: A Review

Indu

Kumar

2020

IETE Journal of Research

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Development of HILS System for ABS ECU of Commercial Vehicles

Cited by 8 publications

References 2 publications

Development and Verification of the Tire/Road Friction Estimation Algorithm for Antilock Braking System

Development and Verification of the Tire/Road Friction Estimation Algorithm for Antilock Braking System

Performance evaluation of antilock brake controller for pneumatic brake system

Electric Vehicle Control and Driving Safety Systems: A Review

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