· Explicit solutions
· Numerical solutions
· Empirical data
· Simulation
· Lumped parameter (masses and springs)
· Distributed parameters (stress in a solid)
· Continuous vs. Discrete
· Linear vs. Non-linear
· linearity and superposition
· reversibility
· through and across variables
· Analog vs. Digital
· process vs. controllers
· Basic system categories below,
Figure 1.1 Model Classifications
· control system types: servo vs. regulating/process control
· open loop vs. closed loop
· disturbances
· component variations
· system error
· analysis vs. design
· mechatronics
· embedded systems
· real-time systems
·
- Basic control problem types,
Tracking (noisy time variant) - test with ramp and disturbance
temperature control
tension/torque control
position
Timing (confliciting objectives and constraints) - test with step
servo control
crane position control
Human Factors (not exact/does not fit LTI) - fuzzy logic
speed control
diagnostics
Interpolation (MIMO system)
multistage setpoint generation
prediction
Classification (not easily described/understood)
pattern recognition
· Servo control systems
· Robot
·
1.