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김종갑(Chongkap Kim),김양래(Yangrae Kim),서대원(Daewon Seo),박상찬(Sangchan Park),손성재(Seongjae Son) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
To improve the high frequency noise from Power Steering, we analyzed it by Taguchi method. We could get the optimized solutions by finding the level which was influenced by each parameter of noise. Concretely we confirmed if it was improved or not through the vehicle test.
차량 안정성 향상을 위한 ESC와 ARS의 통합 샤시 제어 알고리즘 개발
허현동,이경수,서지윤,김종갑,Her, Hyundong,Yi, Kyongsu,Suh, Jeeyoon,Kim, Chongkap 한국자동차안전학회 2013 자동차안전학회지 Vol.5 No.1
This paper describes an investigation into coordinated control of electronic stability control (ESC) and active roll control system (ARS). The coordinated control is suggested to improve the vehicle stability and agility features by yaw rate control. The proposed integrated chassis control algorithm consists of a supervisor, control algorithms, and a coordinator. The supervisor monitors the vehicle status and determines desired vehicle motions such as a desired yaw rate and desired roll motion based on control modes to improve vehicle stability. According to the corresponding the desired vehicle dynamics, the control algorithm calculated a desired yaw moment and desired roll moment, respectively. Based on the desired yaw moment and the desired roll moment, the coordinator determines the brake pressures and the ARC motor torques based on control strategies. Closed loop simulations with a driver-vehicle-controller system were conducted to investigate the performance of the proposed control strategy using CarSim vehicle dynamics software and the integrated controller coded using Matlab/Simulink.
조광현(Kwanghyun Cho),최세범(Seibum Choi),유주현(Joohyun Ryu),김종갑(Chongkap Kim) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
In this paper, an anti-lock brake system(ABS) algorithm using wheel pressure sensors is proposed. The wheel pressure sensors are used to estimate the road friction coefficient, which sensors are used recently to smart cruise control system and a hybrid car. The road friction coefficient is the most important information to control the vehicle stability. Using the estimated road friction coefficient, the vehicle detects mu-transition situation such as high-to-low mu or low-to-high mu and split-mu situation easily. Also, the performance of the estimation for vehicle states such as vehicle speed and acceleration can be improved. Especially, it is efficient to control the left/right and front/rear wheel independently because the friction coefficient is estimated separately. The simulation has been performed to verify the robustness of the proposed ABS algorithm in a variety of road conditions which has different friction coefficients.
Brake-by-Wire 시스템의 동적성능평가 방법에 관한 연구
이경훈(Kyunghun Lee),최형진(Hyungjeen Choi),노기한(Kihan Noh),김명준(Myoungjune Kim),박만복(Manbok Park),서지윤(Jeeyoon Suh),김종갑(Chongkap Kim) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
본 연구에서는 By-Wire System중의 하나인 Brake-by-Wire 시스템에 대한 실차 시험을 기반으로 동적성능을 평가하기 위한 평가방법을 제안하였다. BbW 시스템은 유압에 의한 제동력을 모터의 토크로 대체한 시스템이다. BbW 시스템은 운전자의 브레이크 페달 입력을 기준으로 목표 제동토크 생성 동력원인 모터, 모터와 캘리퍼 사이에 배력을 위한 기구요소 및 이를 제어하기 위한 모터제어기로 구성된다. 더불어 기존의 유압제동시스템과 동일한 조작감을 생성하기 위한 페달 에뮬레이터를 장착하였다. BbW 시스템이 장착된 차량을 이용하여 제동시험을 수행하였고, 얻은 결과를 토대로 힘 제어 응답성, 위치 제어 응답성 평가지수를 개발하였다.
듀얼모터 제어 좌우독립형 Steer-By-Wire 시스템 개발
감민석(Minseok Kam),황성욱(Sungwook Hwang),박수보(Soobo Park),김종갑(Chongkap Kim),오영호(Youngho Oh),이언구(Unkoo Lee) 한국자동차공학회 2007 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The Steer-By-Wire system can have great advantages over the conventional due to its high degree of freedom. Vehicle package, crashworthiness and dynamic performance would be made better by Steer-By-Wire. In spite of these benefits, fail-safety is the most critical problem to make it available. This paper first presents an Independent-type Steer-By-Wire system with dual motor in steering actuator. This Independent-type Steer-By-Wire system has merits over the conventional SBW system in that it highly enhances system safety and can realize ideal handling performance by controlling right and left wheels independently. The system with dual motor enables the actuator to overcome the shortage in fail-safety. The. motor is controlled by each ECU respectively. Secondly, the Independent-type Steer-By-Wire system was implemented in a vehicle and then evaluated in objective and subjective manner. Finally, the future works based on the test results follows.
HiLS기반 전동식 조향 시스템의 횡풍에 대한 주행안정성 평가방법 연구
이진교(Jinkyo Lee),소민우(Minwoo Soh),권재준(Jaejoon Kwon),홍태욱(Taewook Hong),박기홍(Kihong Park),서지윤(Jeeyoon Suh),김종갑(Chongkap Kim) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
Crosswind is one of the major factors that affects on driving stability. Therefore, in order to make up for it, the performance evaluation for MDPS which assist to ensure vehicle driving stability is very important. But the driving stability evaluation of vehicle system for crosswind is difficult to take a vehicle test due to environment restriction. In this paper, we want to develop the method and criteria of evaluating driving stability for crosswind of MDPS with HiLS quantitatively. The purpose of this study is to help the vehicle development by reviewing and applying for the method which can evaluate driving stability for crosswind under various condition in virtual driving environment based on MDPS HiLS.