Implementation Methodology of Control Algorithms for Fixed-Point Microprocessors (1st Report)

2005 ◽  
Vol 71 (3) ◽  
pp. 394-398
Author(s):  
Tatsu AOKI
Keyword(s):  
Fixed Point ◽  
Control Algorithms ◽  
Implementation Methodology

Implementation of Fixed-Point Control Algorithms Based on the Modified Delta Operator and Form for Intelligent Systems

2007 ◽  
Vol 11 (6) ◽  
pp. 709-714 ◽  
Author(s):  
Tatsu Aoki ◽  
Keyword(s):  
Fixed Point ◽  
Adaptive Control ◽  
Intelligent Systems ◽  
Pulse Width Modulation ◽  
Control Algorithms ◽  
Delta Operator ◽  
Dynamic Calculation ◽  
Space Saving ◽  
Point Control ◽  
Point Arithmetic

The methodology we propose for realizing energy- and space-saving adaptive control algorithms is based on pulse width modulation (PWM) with a modified delta operator. The dynamic calculation range is at least twice that of the conventional range, making it very useful in embedded real-time intelligent and micromechatronic systems because complex control algorithms can be implemented in fixed-point arithmetic with short words. Simulation results for PID control and simple adaptive control demonstrate the practicality and effectiveness of our proposal.

Scaling and Roundoff in Fixed-Point Implementation of Control Algorithms

1984 ◽  
Vol IE-31 (3) ◽  
pp. 228-234 ◽  
Author(s):  
Moustafa Elshafei Ahmed ◽  
Pierre R. Belanger
Keyword(s):  
Fixed Point ◽  
Control Algorithms

Limit Cycles in Fixed-Point Implementation of Control Algorithms

1984 ◽  
Vol IE-31 (3) ◽  
pp. 235-242 ◽  
Author(s):  
Moustafa Elshafei Ahmed ◽  
Pierre R. Belanger
Keyword(s):  
Fixed Point ◽  
Limit Cycles ◽  
Control Algorithms

Mental equilibrium: Identifying fixed-point attractors in the stream of thought

2003 ◽  
Author(s):  
Robin R. Vallacher ◽  
Andrzej Nowak ◽  
Matthew Rockloff
Keyword(s):  
Fixed Point

Bifurcation in a Simple Model of the Cardiovascular System

2000 ◽  
Vol 39 (02) ◽  
pp. 118-121 ◽  
Author(s):  
S. Akselrod ◽  
S. Eyal
Keyword(s):  
Nonlinear Dynamics ◽  
Blood Pressure ◽  
Heart Rate ◽  
Fixed Point ◽  
Cardiovascular System ◽  
Modified Model ◽  
Mayer Waves ◽  
Sustained Oscillations ◽  
Human Cardiovascular System ◽  
Physiological Values

Abstract:A simple nonlinear beat-to-beat model of the human cardiovascular system has been studied. The model, introduced by DeBoer et al. was a simplified linearized version. We present a modified model which allows to investigate the nonlinear dynamics of the cardiovascular system. We found that an increase in the -sympathetic gain, via a Hopf bifurcation, leads to sustained oscillations both in heart rate and blood pressure variables at about 0.1 Hz (Mayer waves). Similar oscillations were observed when increasing the -sympathetic gain or decreasing the vagal gain. Further changes of the gains, even beyond reasonable physiological values, did not reveal another bifurcation. The dynamics observed were thus either fixed point or limit cycle. Introducing respiration into the model showed entrainment between the respiration frequency and the Mayer waves.

DEVELOPMENT OF CONTROL ALGORITHMS FRICTION CLUTCHES AUTOMATIC TRANSMISSIONS

2014 ◽  
Vol 2 (1) ◽  
pp. 5-13
Author(s):  
A.V. Bialevich ◽  
◽  
V.N. Grishchuk ◽  
M.M. Tatur ◽  
Y.F. Mikhalkevich ◽  
...  
Keyword(s):  
Control Algorithms ◽  
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