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구본경(Bon-Gyeong Koo) 한국자동차공학회 1999 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1999 No.11_2
This paper describes brake traction control system(BTCS) of MANDO. The BTCS system suppresses the slipping of the driven wheels through the brake torque control. and it improves the acceleration performance and the stability of the car. The BTCS control logic use, in general estimate control technique which uses predetermined slip ratio. it has several problems. Several problems arc as follows - unnecessary control, wheel vibration, fixed slip ratio etc. So. the paper describes adaptive control technique. which solves the several problems. and improve the estimate control technique
장진희(Jinhee Jang),김형수(Hyungsoo Kim),이준희(Junhee Lee),구본경(Bon-Gyeong Koo) 한국자동차공학회 2007 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In this paper, some results of the winter test for the unified chassis control(UCC) system have been presented. In the UCC system, ESC (Electronic Stability Control), EPS(Electric Power Steering), and Continuously Damping Control(CDC) are included. The winter test has been conducted at Heihe in China. Before the UCC system test, each independent system performance check has been done. And then, the UCC system has been checked and evaluated compared to each independent system. The main reason for the test is the identification of the UCC system's usefulness compared to the separated system. For the customer requirement, UCC maker have to show the difference and value added functions to the customers. Main focus on the test is concentrated into safety and stability aspect of the vehicle and driver. For the tuning ability of the control systems, the fast and correct changing ability was the key assessment point. During the test, we found the some concerns and changed calibration for the compensation, immediately. At the beginning of the test, there were some of understeer issues, but, it has been solved with some calibration changes. For the usefulness of the systems, several candidate test modes have been proposed and checked. Finally, we could suggest that the test modes in this paper are helpful to show the usefulness of the system. Additionally, we tried to check the possibility of other chassis control system with some proto samples and systems. We could identify the future direction of the chassis control system with the addition of other sub-systems like AFS and AWD into UCC domain.