Transcription of Types of Control: Open loop, feedback, feedforward
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Types of Control: Open loop, feedback, feedforward
1 Mechatronics and Haptic Interfaces Lab 1 ENGI 128 INTRODUCTION TO ENGINEERING SYSTEMS Lecture 10: feedback control Understand Your Technical World 2 Mechatronics and Haptic Interfaces Lab 2 Disturbance Rejection: Cockroach Engineering 3 Mechatronics and Haptic Interfaces Lab 3 Disturbance Rejection: Artificial System Big Dog , 4 Mechatronics and Haptic Interfaces Lab 4 Engineering Intelligent Systems Roeder KD (1948) Organization of the ascending giant fibre system in the cockroach. 5 Mechatronics and Haptic Interfaces Lab 5 Disturbance Rejection: Natural System Preflexes Jindrich, D. L. and Full, R. J. (2002). Dynamic stabilization of rapid hexapedal locomotion. Journal of Experimental Biology. 205,2803-2823. (Video and picture courtesy Devin Jindrich) (Recovery in ~27ms!) 6 Mechatronics and Haptic Interfaces Lab Controlling Engineering Systems Open Loop vs. Closed Loop feedback vs. feedforward 7 Mechatronics and Haptic Interfaces Lab Types of control : open loop oOpen Loop control - sprinkler system 8 Mechatronics and Haptic Interfaces Lab Types of control : feedback oFeedback control - Oven 9 Mechatronics and Haptic Interfaces Lab Types of control : feedback Winter growing up in Ohio 10 Mechatronics and Haptic Interfaces Lab Types of control : feedforward oFeedforward control the egg toss 11 Mechatronics and Haptic Interfaces Lab Why use feedback control or better, why do you need a contro
Why use feedback control • or better, why do you need a control system at all? • consider ovens, A/C units, airplanes, manufacturing, pumping stations, etc • What are we controlling? some physical quantity (constant) a dynamic behavior (a function of time) • We need to 'tell' the system how we want it to behave
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