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인휠 독립 구동 전기자동차의 구동 모터 고장 진단 알고리즘
전남주(Namju Jeon),이형철(Hyeongcheol Lee) 한국자동차공학회 2015 한국자동차공학회 부문종합 학술대회 Vol.2015 No.5
This paper presents a fault diagnosis algorithm for driving motor of In-wheel independent drive electric vehicle using vehicle dynamic analysis. The driving motor fault is detected and isolated based on the residuals. The residuals are provided with the wheel dynamics. The wheel dynamics are composed of a motor driving torque, wheel speed and longitudinal force. The longitudinal force estimated by analyze a planar two track non-linear model and a nonlinear simple tire model. The proposed fault diagnosis algorithm is verified by CarSim and Matlab/Simulink cosimulation.
에너지 효율 기반의 에코드라이빙 모니터링 알고리즘 개발
전남주(Namju Jeon),함형진(Hyeongjin Ham),정기윤(kiyun Jeong),이형철(Hyeongcheol Lee) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
This paper presents the eco-driving monitoring algorithm which numerically evaluates the driver’s driving habits at the point of the environmental friendliness. This eco-diving monitoring algorithm which cans quantitatively and analytically evaluate the driver’s driving habits based on the instant energy efficiency of vehicle and the mathematical vehicle models. The instant energy efficiency of vehicle is calculated on the kinetic energy, battery energy and engine fuel consumption energy. The effectiveness of the proposed eco-driving monitoring algorithm is verified by the computer simulation using a vehicle model.
전남주(Namju Jeon),정기윤(Kiyun Jeong),이형철(Hyeongcheol Lee) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11
This paper presents a fault detection algorithm for the in-wheel motor drive vehicle by estimating the internal resistance of the motor. The proposed fault detection algorithm is developed based on the least square identification method using the input and the output data. The nonlinear permanent magnet synchronous motor (PMSM) model and a PMSM control algorithm are developed to simulate the fault detection algorithm. The simulation results show the validity of the proposed fault detection algorithm.
경사로 주행시 연비 개선을 위한 차량 제어 알고리즘 연구
백윤석(Yunseok Baek),전남주(Namju Jeon),김지훈(Jihoon Kim),이형철(Hyeongcheol Lee) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
This paper proposes the velocity profile to minimize fuel consumption based on Global Positioning System (GPS) and the 3D road map database. Numerous previous studies have suggested that fuel consumption is approximately minimized by operation at constant speed. And it is most favorable to coast as long as it does not break the legal speed limit because braking instigates wasting energy and should thus be minimized. Maximum fuel reduction is obtained by implementing the fuel cut-off point as soon as possible. There are insufficient effects on fuel economy when the driver drives on roads with up-down slope. To maintain a constant speed suggests that the optimal velocity profile for roads with each slope angle is presented. When it can‘t maintain a constant speed, the optimal velocity profile is presented by trade off fuel consumption against time. The simulation is performed for validity of proposed supervisory control algorithm. The simulation vehicle model of the target vehicle is developed by AVL CRUISE® and the proposed control algorithm is realized by using the MATLAB/Simulink. Simulations show that the developed control system provides significant benefits in terms of fuel economy when the driver drives on roads with up-down slope.
이병환(Byunghwan Lee),전남주(Namju Jeon),이형철(Hyeongcheol Lee) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
This paper proposes a sensor fault detection and isolation (FDI) algorithm for the interior permanent magnet synchronous motor (IPMSM) through the model-based approach. The faults of phase current sensor are detected by using parity equation which is derived from the mathematical model for the IPMSM. The proposed FDI algorithm considers residuals, which are determined by differences between measurements coming from sensors and models. The time varying adaptive thresholds of the residuals are used to consider the modeling errors during the transient maneuvers. The types of current sensor faults are introduced before simulation. For getting the simulation results of the developed FDI algorithm, the IPMSM model and controller are developed by using MATLAB/Simulink environment. Simulation results show the validity and performance of the proposed algorithm.
인휠 전기자동차의 구동 모터 전류센서 고장 허용 제어 연구
김현범(Hyunbeom Kim),전남주(Namju Jeon),이형철(Hyeongcheol Lee) 한국자동차공학회 2015 한국자동차공학회 학술대회 및 전시회 Vol.2015 No.11
This paper presents a fault-tolerant control algorithm for the in-wheel motor drive electric vehicle. The proposed fault-tolerant control algorithm is developed based on parity equation and current estimation method. The nonlinear permanent magnet synchronous motor (PMSM) model and a PMSM control algorithm are developed to simulate the fault-tolerant control algorithm. The simulation results the validity of the proposed fault tolerant control algorithm.
백윤석(Yunseok Baek),전남주(Namju Jeon),이형철(Hyeongcheol Lee) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
In this paper, we propose the velocity profile to minimize fuel consumption based on Global Positioning System (GPS) and the 3D road map database by the computer simulation using a vehicle model. Numerous previous studies, using a control theory approach applied to specific profiles, have suggested that fuel consumption is approximately minimized by operation at constant speed. There’s an insufficient effect on fuel economy. This optimization algorithm analytically allows the velocity profiles based on the mathematical vehicle models. Simulations show that the optimization of the velocity profile provides significant benefits in terms of fuel economy
HIL 시뮬레이션에 의한 하이브리드 에너지 저장장치 탑재 전동차의 가능성 연구
이지호(Jeeho Lee),전남주(Namju Jeon),이형철(Hyeongcheol Lee) 한국자동차공학회 2009 한국자동차공학회 부문종합 학술대회 Vol.2009 No.4
This paper represents a way to build hardware-in-the-Loop (HIL) simulation system for feasibility study of an electric railway vehicle with onboard energy storage system. The energy storage system consists of the battery and the ultra-capacitor in parallel. The dynamical analysis of the subsystems such as railway vehicle and energy storage system is performed and the simulation program of the target is obtained from the mathematical models of the subsystems. Traction motor model of railway vehicle consists of small size testbench. Torque transducer is coupled between traction motor and load motor which generate load torque for traction motor on the testbench. HIL simulation system consists of testbench and simulation program which contains model of subsystems. HIL simulation result shows that hybrid energy storage system can supply required electric power from traction motor and make synergistic effect from two different power sources.
우승하(Seungha Woo),전남주(Namju Jeon),이형철(Hyeongcheol Lee) 한국자동차공학회 2013 한국자동차공학회 부문종합 학술대회 Vol.2013 No.5
This paper presents the fault detection and isolation algorithm for an in-wheel motor drive vehicle by using the model based application. Using decentralized and centralized method is to be determined to optimize trade-off relation between sensitivity and robustness. DFDD approach is suitable for an individual single processor such as each motor, inverter, acceleration/brake pedal and battery. On the other hand, CFDD approach is better for communication of multiple processors that detects and diagnosis faults. Before simulating the model, the fault models of pedal position sensors and the battery states are applied on the model and controller developed by Matlab/Simulink program. The proposed FDI algorithm is verified on the environment containing the system model.