Template for group 4
Dependencies: mbed
Fork of RT2_P3_students_G4 by
Diff: PI_Cntrl.cpp
- Revision:
- 11:67af6d24c588
- Parent:
- 6:8ed679044a72
diff -r 85840c065e00 -r 67af6d24c588 PI_Cntrl.cpp --- a/PI_Cntrl.cpp Fri Apr 27 06:34:29 2018 +0000 +++ b/PI_Cntrl.cpp Fri Apr 27 06:54:18 2018 +0000 @@ -11,51 +11,3 @@ #include "PI_Cntrl.h" using namespace std; - -PI_Cntrl::PI_Cntrl(float Kp, float Tn, float Ts) -{ - setCoefficients(Kp, Tn, Ts); - uMax = 10000000000.0; - uMin = -uMax; - reset(0.0f); -} - -PI_Cntrl::PI_Cntrl(float Kp, float Tn, float Ts, float uMax) -{ - setCoefficients(Kp, Tn, Ts); - this->uMax = (double)uMax; - uMin = -(double)uMax; - reset(0.0f); -} - -PI_Cntrl::PI_Cntrl(float Kp, float Tn, float Ts, float uMax, float uMin) -{ - setCoefficients(Kp, Tn, Ts); - this->uMax = (double)uMax; - this->uMin = (double)uMin; - reset(0.0f); -} - -PI_Cntrl::~PI_Cntrl() {} - -void PI_Cntrl::reset(float initValue) -{ - s = (double)initValue; -} - -void PI_Cntrl::setCoefficients(float Kp, float Tn, float Ts) -{ - b0 = (double)Kp*(1.0 + (double)Ts/(double)Tn); - b1 = -(double)Kp; - b2 = (double)Ts/(double)Tn; -} - -float PI_Cntrl::doStep(double e) -{ - double u = b0*e + s; // unconstrained output - double uc = u; // constrained output - if(u > uMax) uc = uMax; - else if(u < uMin) uc = uMin; - s = b1*e + u - b2*(u - uc); - return (float)uc; -} \ No newline at end of file