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트로틀 밸브 조정에 의한 엔진/자동 변속기의 자동 류닝 PI 제어 시스템
장종호(J. H. Chang),홍동우(D. W. Hong),송재복(J. B. Song) 한국자동차공학회 1996 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1996 No.6_1
This research aims at developing speed control system of the engine/automatic transmission system, in which the throttle valve opening is selected as an input and the driving axle speed as an output. In order to overcome the tedious tuning process, automatic tuning technique is attempted to select the gains of a PI controller. The process consists of two parts, one is to estimate the parameters of the system and the other is to design the PI controller based on root locus method. From a series of closed-loop experiments, the PI speed control system designed this way shows relatively good performance on tracking and disturbance rejection properties.
스로틀 조절 방식에 기초한 TCS 슬립 제어 시스템의 HWILS 구현
송재복(J. B. Song),홍동우(D. W. Hong) 한국자동차공학회 1998 한국 자동차공학회논문집 Vol.6 No.3
Traction control systems(TCS) improve vehicle acceleration performance and stability. particularly on slippery roads through engine torque and/or brake torque control. This research mainly deals with the engine control algorithm based on adjustment of the engine throttle valve opening. Hardware-in-the-Ioop simulation(HWILS) is carried out where the actual hardware is used for the engine/automatic transmission and TCS controller. while various vehicle dynamics are simulated on real-time basis. Also, use of the dynamometer is made in order to implement the tractive force that a road applies to the tire. Although some restrictions are imposed mainly due to the capability of the dynamometer, simplified HWILS results show that the slip control algorithm can improve the vehicle acceleration performance for low-friction roads.<br/>