Difference between revisions of "Could you give a precise definition for "Control Law"?"
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A control law, which is usually part of the controller, takes the output of a process one wants to control as input. This input is then used in an algorithm to compute an output u, which is sent to the actuating mechanism to perform a corrective action. For example, in a cruise control system, the control law compares the reference speed to the current speed and uses this error (vr - v) in a PID control algorithm to determine the signal u that is then sent to the actuators to decrease the error between the desired and actual speed. | A control law, which is usually part of the controller, takes the output of a process one wants to control as input. This input is then used in an algorithm to compute an output u, which is sent to the actuating mechanism to perform a corrective action. For example, in a cruise control system, the control law compares the reference speed to the current speed and uses this error (vr - v) in a PID control algorithm to determine the signal u that is then sent to the actuators to decrease the error between the desired and actual speed. | ||
--[[User:Soto|Soto]] 15:49, 10 October 2007 (PDT) | --[[User:Soto|Luis Soto]] 15:49, 10 October 2007 (PDT) | ||
[[Category: CDS 101/110 FAQ - Lecture 2-2]] | [[Category: CDS 101/110 FAQ - Lecture 2-2]] | ||
[[Category: CDS 101/110 FAQ - Lecture 2-2, Fall 2007]] | [[Category: CDS 101/110 FAQ - Lecture 2-2, Fall 2007]] | ||
Revision as of 22:51, 10 October 2007
A control law, which is usually part of the controller, takes the output of a process one wants to control as input. This input is then used in an algorithm to compute an output u, which is sent to the actuating mechanism to perform a corrective action. For example, in a cruise control system, the control law compares the reference speed to the current speed and uses this error (vr - v) in a PID control algorithm to determine the signal u that is then sent to the actuators to decrease the error between the desired and actual speed. --Luis Soto 15:49, 10 October 2007 (PDT)
