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차량 Chassis 특성 변화를 고려한 ESC 성능 평가를 위한 HIL simulator 개발
노지훈(Jihoon Roh),이강원(Kangwon Lee),이종일(Jongil Lee),오승규(Seungkyu Oh),김영우(Youngwoo Kim),김형수(Hyoungsoo Kim),김인동(Indong Kim),장진희(Jinhee Jang) 한국자동차공학회 2009 한국자동차공학회 부문종합 학술대회 Vol.2009 No.4
The performance of Electronic Stability Control (ESC) system is greatly influenced by vehicle weight distribution, suspension characteristics and tire performance. Many car maker but develop the vehicle had variety of chassis to meet the various customer requirement of several countries. As these trends, the validation test for ESC performance becomes more complex. Hardware in the loop simulation (HILS) is becoming a useful method for evaluation of Electronic Control Unit (ECU) instead of real vehicle test. HILS is based on the computer simulation included the real ECU in simulation loop. It is useful tool to test and validate these controllers in phase of development and validation. In this study, HIL simulator is developed for ESC performance evaluation considering vehicle parameter change. This paper is organized three sections regarding the configuration of HIL simulator First, hardware design feature and software configuration is described and then automated system is explained as well as presented how to deal with the vehicle parameter in simulation process. Finally, simulation test procedure for the performance evaluation of ESC is presented.
HIL Simulator를 이용한 차량동역학 제어기의 성능평가
노지훈(Jihoon Roh),김인동(Indong Kim),구형찬(Hyoungchan Koo),김형수(Hyoungsoo Kim),김영우(Youngwoo Kim) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
Recently ESC becomes to mandatory in many developed country and there are some performance requirement in regulation so, vehicle manufacturer need to perform the certification test. But physical test have limitation for the validation of complexity of vehicle variants. In this paper, HILS (hardware in the loop simulator) for vehicle dynamics controller is introduced and the process of construction is explained as well. finally, simulation test results are compared with physical test result for the analysis of reliability of simulation result.
Chassis Control HIL Simulation을 위한 차량 네트워크 시스템
노지훈(Jihoon Roh),장진희(Jinhee Jang) 한국자동차공학회 2007 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Recently, the demand of ECU(Electronic Control Units) in vehicle is constantly increasing, and the software of the ECUs is becoming more complex. In the past, the automotive maker and components manufacturer had developed independent controller as ABS, EPS, CDC, EMS but lately become wider the development field of controller as UCC(Unified Chassis Control), BCM(Body Control Management). HIL(Hardware In the Loop) system is used to development and verification such controller. The UCC, BCM system requires a large number of vehicle information from sensors. other ECUs and driver. And thus the volume of network system in vehicle is on the increase. It is also creating network congestion in the process of development HIL system. In this paper. the vehicle network system's scheme for the development of HIL system and the common vehicle network analysis tools is shown to solve these problems. The paper also represents the development process of ESC, EPS HIL simulator.
노지훈(Jihoon Roh),황태훈(Taehun Hwang),박기홍(Kihong Park),이수진(Soo-Jin Lee),정유철(Yuchul Jung),박인혜(Inhye Park) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
ESP system is the latest vehicle control technique that maintains optimal driving safety through the control of traction and braking forces on the individual wheels. The ESP has the intimate relations with driving stability. Therefore verification process of ESP is required from initial development step. But development of using vehicle test or numerical simulation has many disadvantages which are cost, simulation time, danger etc. In order to reduce the disadvantage of the above, we used to have HILS test which can compromise these problems. In this thesis, HILS system for ESP ECU has been developed and tested under various simulation conditions.
HIL Simulator를 이용한 Active UCC 시스템 평가
노지훈(Jihoon Roh),이강원(Kangwon Lee),오승규(Seoungkyu Oh),이종일(Jongil Lee),김영우(Youngwoo Kim),김형수(Hyoungsoo Kim),김인동(Indong Kim),장진희(Jinhee Jang) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11
Active Unified Chassis Control(AUCC) system is developed for the improvement of the vehicle dynamics performance not only stability but also ride comport. Test for the evaluation of AUCC performance using real vehicle is time consuming and required much cost. Therefore, many evaluation processes are replaced by laboratory test such as Hardware in the Loop Simulation (HIL Simulation). HIL simulation is the computer simulation include real hardware control unit in simulation loop. It is useful tool to test and validate these controllers in phase of development. This paper is shown overall description of HIL simulator for evaluation of AUCC system and test result compare with physical vehicle test result. First, vehicle dynamics modeling and correlation process are explained in detail and then the design concept of HIL simulator is described. Finally, the evaluation procedure and simulation results are presented.
ESC Performance Uniformity를 위한, Red-X 기법을 통한 Brake Pressure Rise Rate 연구
이강원(Kangwon Lee),노지훈(Jihoon Roh),구형찬(Hyoungchan Koo) 한국자동차공학회 2015 한국자동차공학회 부문종합 학술대회 Vol.2015 No.5
Recently, many vehicles are equipped electronic control systems to improve the vehicle performance and to secure the vehicle safety for the customers. Same tendency on active safety systems are also increased than few years ago. Those active safety systems are had to improve vehicle performance and safety. Furthermore, they can improve system robustness and performance uniformity. In this paper, I tried to establish the components that related the Brake Pressure Rise Rate for Electric Stability Control System performance, than confirmed the ESC performance uniformity with Red-X Strategy was derived from components. In this study, I used Red X strategies. GM has a 20-year association with the organization and uses Red X as a technical problem-solving tool, primarily after a vehicle is launched, to understand vehicle performance issues. We emphasizes that most issues can be corrected by finding the root cause and controlling it.
HIL & SIL Simulation을 이용한 AFS System의 성능 향상을 위한 제안
오승규(Seungkyu Oh),노지훈(Jihoon Roh),이강원(Kangwon Lee),이종일(Jongil Lee),김영우(Youngwoo Kim),김형수(Hyoungsoo Kim),김인동(Indong Kim),장진희(Jinhee Jang) 한국자동차공학회 2009 한국자동차공학회 부문종합 학술대회 Vol.2009 No.4
This paper presents proposals of performance improvement of AFS(Active Front Steer) system. AFS system is a subsystem of UCC(Unified Chassis Control) system which is composed of AFS, ESC(Electronic Stability Control), EAS(Electronic Air Suspension) systems. In this paper, AFS system is focused and proposals for AFS system performance improvement are introduced. First, configurations, functionalities and control algorithms of AFS system are introduced by literature survey results. Through these results AFS system control algorithm is proposed. And this algorithm is developed and validated using SIL(Software in the Loop) simulation. Finally, this AFS control algorithm is validated using HIL (Hardware in the loop) simulator. And concept and configuration of this HIL Simulator is introduced. With this HIL simulator not olny AFS system performance but also UCC system performance is evaluated.
HIL Simulator를 이용한 HSA(Hill Start Assist) 평가방법에 대한 연구
김원욱(Wonwook Kim),노지훈(Jihoon Roh),김형수(Hyoungsoo Kim),이종일(Jongil Lee),박동환(Donghwan Park),구형찬(Hyoungchan Koo) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
Recently EBCM are common standard equipment on vehicles for vehicle dynamic control. Accordingly customers are provided many benefits of safety and convenience. Hill Start Assist system is one of additional functions that assist to driver on hill road. During the development process, there are required much work-hour that is caused by space limit. However, HIL (Hardware-In-the Loop) has to reduce development and validation time for dynamics controls systems. This paper is introduced the HSA system and described a method of evaluation using HIL simulator. The simulation results have been evaluated through HIL simulator on the virtual roads include various slopes and confirmed to compare with physical test.