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전자식 스로틀 바디의 실험적인 파라미터 규명에 대한 연구
진성태(Sungtae Jin),이우택(Wootaik Lee) 한국자동차공학회 2007 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
This paper is describes an experimental parameter identification of non-linear model for an electronic throttle body (ETB). The ETB, which consists of a DC motor, a throttle plate, a return spring and gear, has non-linearity caused by mechanical friction and pretension force of the return spring. Besides, the ETB system has characteristics, with dependence on mechanical roughness and time-varying caused by frictional wear between mechanical components. In order to simulate an ETB model accurately, it requires to exactly understand the ETB system and to identify ETB parameters based on experimental data. In this paper, data sets for friction and return spring torque are obtained by several experiments under same environment. And then the data sets are linearized by using the least square method to approximate function which has relatively minimum error compared with the experimental data sets. The non-linear parameters are obtained from the approximate function and adapted to the ETB model. Lastly, a result of the simulation is compared with an experimental result.
전자식 스로틀 바디의 HIL 시뮬레이션 환경 구축을 위한 사례연구
진성태(Sungtae Jin),강종진(Jongjin Kang),이우택(Wootaik Lee) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
This paper describes implementation of Hardware-In-the-Loop (HIL) simulation environment to easily develop Electronic Throttle Controller (ETC). The parameters of the Electronic Throttle Body (ETB) model, which consists of a motor driver, a motor, mechanical parts, and a position sensor, were obtained by open-loop test. The simulation results of the designed ETB model are compared with experimental data of a real ETB that are run by open-loop test to validate ETB model. In order to implement HIL simulation environment, the signal interfaces of MATLAB/RTW xPC Target is added to the ETB model for interface with the ETC hardware. And disturbances are applied for the performance analysis of ETC. Through closed-loop test, it is verified that the developed HIL simulation environment is reasonable. The HIL simulation environment of the ETB model is useful for performance analysis of ETC and can be used for the powertrain HIL simulation.
수동 셀 밸런싱 로직 개발을 위한 배터리 셀 전압 모사장치 개발
진성태(Sungtae Jin),허재호(Jaeho Hur),이강윤(Kangyoon Lee) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
This paper describes a battery cell voltage generator can be utilized in the cell voltage monitoring and the passive cell balancing logic testing in development process of a BMS(Battery Management System). The BMS consists of BMS ECU(Electric Control Unit), battery, tray, current sensor, terminal, safety plug, fuse, DC link and cooling fan. The BMS ECU can control and manage cells individually, such as prolonging the lifetime, increasing the capacity and managing the safety of the battery. In order to implement this function successfully, historical information about battery temperature, discharge current and the cell voltage is required. In the development process of the BMS, the cell balancing logic should be tested. However, the test environment is difficult to organize. In this paper, the battery cell voltage generator proposes in order to solve this problem. The validity is confirmed through static load test and dynamic load test with passive cell balancing.
진성태(Sungtae Jin),이강윤(Kangyoon Lee),이우택(Wootaik Lee) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11
This paper describes implementation and development of Hardware-in-the-Loop Simulation(HILS) system to easily test software functions of Motor Control Unit(MCU) in hybrid electric vehicle. A current automotive ECU has a number of requirements which are legal enforcement, passenger convenience, driver assistance and dynamic drive aspects. These various requirements make the software functions more difficult to enhance reliability. To overcome this problem, this paper presents a better testing environment for maximizing the software quality using the HILS technique. The proposed HILS system can cover not only simulation environment of plant model in real-time but also a means to automatically test the software functions embedded into MCU. For the validation of simulation environment, the experimental results of the developed HILS system are compared with simulation results of the designed plant model on the PC environment. The proposed HILS system will look forward to improving the reliability of software quality and cost-effectiveness of the products.
Electro-Mechanical Brake 제어 시스템을 위한 전자제어장치의 하드웨어 플랫폼 개발
진성태(Sungtae Jin),이강윤(Kangyoon Lee),김명준(Myoungjune Kim),김주곤(Joogon Kim) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
This paper describes an electric control unit(ECU) hardware platform for an electro-mechanical brake(EMB) control system. In modern vehicles hydraulic and mechanical components are replaced by electrical components. At the same time, increasing complexity of control mechanisms causes new engineering problems in software and hardware development. As one of these technologies, the EMB control system is a brake-by-wire system that can replace conventional hydraulic brake system. This paper introduces the overall concept of hardware design and outlines of the components design to interface sensors and actuators for EMB control system. Finally, the results are confirmed from component-level tests with basic software.