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1. WO1996010780 - ADAPTIVE CONTROL SYSTEM FOR CONTROLLING REPETITIVE PHENOMENA

Publication Number WO/1996/010780
Publication Date 11.04.1996
International Application No. PCT/GB1995/002242
International Filing Date 20.09.1995
IPC
G05B 5/01 2006.01
GPHYSICS
05CONTROLLING; REGULATING
BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
5Anti-hunting arrangements
01electric
G05B 19/02 2006.01
GPHYSICS
05CONTROLLING; REGULATING
BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
19Programme-control systems
02electric
G10K 11/178 2006.01
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES;  METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
11Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
16Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
175using interference effects; Masking sound
178by electro-acoustically regenerating the original acoustic waves in anti-phase
CPC
G05B 19/02
GPHYSICS
05CONTROLLING; REGULATING
BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
19Programme-control systems
02electric
G05B 5/01
GPHYSICS
05CONTROLLING; REGULATING
BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
5Anti-hunting arrangements
01electric
G10K 11/17815
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES
11Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
16Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
175using interference effects; Masking sound
178by electro-acoustically regenerating the original acoustic waves in anti-phase
1781characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
17813characterised by the analysis of the acoustic paths, e.g. estimating, calibrating or testing of transfer functions or cross-terms
17815between the reference signals and the error signals, i.e. primary path
G10K 11/17854
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES
11Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
16Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
175using interference effects; Masking sound
178by electro-acoustically regenerating the original acoustic waves in anti-phase
1785Methods, e.g. algorithms; Devices
17853of the filter
17854the filter being an adaptive filter
G10K 11/17879
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES
11Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
16Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
175using interference effects; Masking sound
178by electro-acoustically regenerating the original acoustic waves in anti-phase
1787General system configurations
17879using both a reference signal and an error signal
G10K 11/17883
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES
11Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
16Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
175using interference effects; Masking sound
178by electro-acoustically regenerating the original acoustic waves in anti-phase
1787General system configurations
17879using both a reference signal and an error signal
17883the reference signal being derived from a machine operating condition, e.g. engine RPM or vehicle speed
Applicants
  • LOTUS CARS LIMITED [GB]/[GB] (AllExceptUS)
  • STOTHERS, Ian, MacGregor [GB]/[GB] (UsOnly)
Inventors
  • STOTHERS, Ian, MacGregor
Agents
  • BOULT WADE TENNANT
Priority Data
9419848.803.10.1994GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ADAPTIVE CONTROL SYSTEM FOR CONTROLLING REPETITIVE PHENOMENA
(FR) SYSTEME DE COMMANDE ADAPTATIVE PERMETTANT DE COMMANDER DES PHENOMENES REPETITIFS
Abstract
(EN)
An adaptive control system is provided for controlling a plant subject to repetitive phenomena having at least one frequency component. The system comprises a complex reference generator for generating a complex reference signal having in-phase and quadrature components substantially at a frequency of one of the frequency components. A first heterodyning arrangement is provided to heterodyne the complex reference signal with the complex control coefficients to generate at least one control signal having an in-phase component for use in the control of the plant to generate at least one desired output signal. The frequency components in the output signal are correlated with the complex reference signal to generate complex update coefficients and a second heterodyning arrangement heterodynes the output signal with a signal derived from the complex reference signal to generate the complex update coefficients which comprise sum and difference components. An integrator integrates the complex update coefficients comprising the sum and difference components to generate the complex control coefficients.
(FR)
Un système de commande adaptative permet de commander une installation soumise à des phénomènes répétitifs qui présentent au moins une composante de fréquence. Ce système comprend un générateur de référence complexe qui produit un signal de référence complexe présentant des composantes en phase et en quadrature à une fréquence de l'une des composantes de fréquence. Un premier dispositif de changement de fréquence mélange le signal de référence complexe avec des coefficients de commande complexes pour donner au moins un signal de commande, présentant une composante en phase, destiné à être utilisé pour commander à l'installation de produire au moins un signal de sortie souhaité. Les composantes de fréquence du signal de sortie sont corrélés avec le signal de référence complexe pour produire des coefficients d'actualisation complexes, et un deuxième dispositif de changement de fréquence mélange le signal de sortie avec un signal dérivé du signal de référence complexe pour produire des coefficients d'actualisation complexes qui comprennent des composantes de sommation et de différence. Un intégrateur intègre ces coefficients d'actualisation complexe comprenant les composantes de sommation et de différence pour produire les coefficients de commande complexe.
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