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김병주(Byungjoo Kim),노근제(Keunje Noh),김혁수(Hyuksoo Kim),박기홍(Kihong Park) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11
This paper proposes an Intelligent Torque Distribution(ITD) algorithm for enhancing the driving performance and cornering stability of a vehicle. In the vehicle’s longitudinal maneuver, the ITD logic improves the acceleration performance by the front/rear torque distribution. In the cornering maneuver, the ITD logic tries to maintain the vehicle’s lateral stability by using the combined torque distribution strategies at for wheels. For the control logics, the PID and the sliding mode control methods were adopted for the longitudinal and lateral controls, respectively. The performance of the ITD system was validated using and independent four wheel drive vehicle model developed with CarSim and Simulink. The simulation results are to be presented and discussed in this paper.
AFS를 이용한 SUV의 전복 방지 성능 개선을 위한 연구
이시형(Sihyoung Lee),노근제(Keunje Noh),이재훈(Jaehoon Lee),박기홍(Kihong Park),허승진(Seung-Jin Heo) 한국자동차공학회 2007 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
This paper studies advanced AFS(Active Front Steering) controller for improvement in the rollover-prevention performance of SUV. The main idea of the AFS is to achieve the driving stability using the variable gear ratio and the steering stability using the direct yaw moment control. However, only with this basic function of SUV it is difficult to prevent the vehicle rollover. This paper contains suggestion of advanced variable gear ratio of the AFS controller using a function attained by setting up the handle angular velocity of vehicle that is added to the variable gear ratio which consists of a vehicle velocity function as an input. The interpreter for vehicle dynamics(CarSim) is used to verify suggested logic.
Lumped Parameter 모델 기반 White box 전차량 모델 기반
이시형(Sihyoung Lee),황태훈(Taehun Hwang),노근제(Keunje Noh),이재훈(Jaehoon Lee),김회용(Hoiyoung Kim),박기홍(Kihong Park),허승진(Seung-Jin Heo) 한국자동차공학회 2007 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Recently, development system of RCP(Rapid-Control Prototyping) technology is actively adapted for the technology development of the electronic chassis control system. Therefore, a thesis of high fidelity realtime vehicle dynamics reference model is required. This paper studies technology for a thesis of vehicle dynamics model based on Lumped-Parameter model to simulate driving characteristic of electronic control vehicle accurately. Matlab/Simulink based 14 DOF full vehicle model consists of modular white box vehicle models (horizontal direction, vertical direction, road surface-tire, driver). Modular individual model can be used independently, and it should be possible to connect with other individual models hereafter. 14 DOF full vehicle model was compared with the interpreter for vehicle dynamics, CarSim, to verify compatibleness between modular individual vehicle models.