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트로틀 앵글 제어에 의한 내연기관의 토오크 및 속도의 비선형 제어
원문철(M.C.Won),강병배(B.B.Kang),박문수(M.S.Park),김태영(T.Y.Kim) 한국자동차공학회 1998 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1998 No.11_2
A nonlinear engine torque and speed control algorithm using throttle angle control is developed with an engine load torque estimation algorithm. Three 3-dimensional nonlinear engine maps as a part of the nonlinear control algorithm are obtained from steady state engine dynamometer tests. An electric throttle actuator is developed using a stepper motor and a 8 bit micro-processor. The speed control and external load estimation algorithm are tested via engine speed control experiments, and show good performance enough for using various engine torque and speed control applications.<br/>
강병배,김태영,원문철 충남대학교 산업기술연구소 2001 산업기술연구논문집 Vol.16 No.1
In this study, an electric throttle valve system for spark ignition engines is developed for the acceleration control of automobiles. The throttle valve system consists of a throttle valve, a small and high power D.C motor with a motor driver, and a cable reel system that connects the motor and the throttle valve. The motor driver is developed based on an H-bridge PWM(Pulse Width Modulation) circuit. The electric throttle valve system is controlled based on a simple propertional analog control circuit that utilizes the throttle valve position sensor information. It takes about 100msec. for the throttle valve to open from 0 to 90 degree, and the system has a bandwidth about 3 Hz, which is enough fast for a speed control or torque control of internal combustion engines for intelligent vehicle control applications.