상태관측기를 이용한 Active Front Steer 구동전동기 속도 검출 = Speed Measurement of Motors for Active Front Steer Using State Observer

다국어 초록 (Multilingual Abstract)

Active Front Steering system controls steering gear ratio electrically. For embodiment of this function electric motor is used and it is needed to control position and speed of motor. Because of cost, position feedback comes from physical sensor, such as incremental encoder, but motor rpm is calculated from position signal of sensor. Generally, motor speed is calculated by the number of pulses which are counted in the sampling period. This method, is called M-method, can not calculate speed at lower rpm. And motor speed fluctuates at steady state by using low-resolution position sensor. In this paper, speed estimator was implemented using state observer. Simulation using SIMULINK and the experimentation show that the estimator has continuous speed signal from low to high rpm.

목차 (Table of Contents)

• Abstract
  
• 1.서론
  
• 2.AFS구동용 전동기 제어시스템
  
• 3.전동기 속도측정
  
• 4.관측기설계 및 구현
  
• 5.실험 및 결과
  
• 8.결론
  
• References