WO2022053886 - METHODS AND SYSTEMS FOR PROVIDING CONTROL STABILITY IN A VACUUM GENERATION SYSTEM USING AN OVERRIDE PROPORTIONAL-INTEGRAL-DERIVATIVE (PID) CONTROLLER
National phase entry:
Publication Number
WO/2022/053886
Publication Date
17.03.2022
International Application No.
PCT/IB2021/057204
International Filing Date
05.08.2021
Title **
[English]
METHODS AND SYSTEMS FOR PROVIDING CONTROL STABILITY IN A VACUUM GENERATION SYSTEM USING AN OVERRIDE PROPORTIONAL-INTEGRAL-DERIVATIVE (PID) CONTROLLER
[French]
PROCÉDÉS ET SYSTÈMES POUR FOURNIR UNE STABILITÉ DE COMMANDE DANS UN SYSTÈME DE GÉNÉRATION DE VIDE À L'AIDE D'UN RÉGULATEUR PROPORTIONNEL INTÉGRAL DÉRIVE (PID) DE DÉROGATION
Applicants **
ALCON INC.
Rue Louis-d'affry 6
1701 Fribourg, CH
Inventors
CHIEM, Brian T.
c/o Alcon Research, LLC
20511 Lake Forest Drive
Lake Forest, California 92630, US
Priority Data
63/077,757
14.09.2020
US
17/376,330
15.07.2021
US
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
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International Searching Authority |
EPO
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 1201 | |
| EPO | Filing, Examination | 4639 | |
| Japan | Filing | 591 | |
| South Korea | Filing | 607 | |
| USA | Filing, Examination | 2710 |
Total: 9748 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
Certain embodiments provide a vacuum generation system with an override PID controller, a proportional valve, and a vacuum generator. The override PID controller allows the vacuum generation system to control the operating range of supply air pressure that is provided to the vacuum generator. By controlling the operating range of the supply air pressure, the vacuum generation system is able to avoid entering the decreasing or non-monotonic region of the vacuum generator.[French]
Certains modes de réalisation concernent un système de génération de vide à l'aide un régulateur PID de dérogation, d'une soupape proportionnelle et d'un générateur de vide. Le régulateur PID de dérogation permet au système de génération de vide de réguler la plage de fonctionnement de la pression d'air d'alimentation qui est fournie au générateur de vide. Par la régulation de la plage de fonctionnement de la pression d'air d'alimentation, le système de génération de vide peut éviter d'entrer dans la région décroissante ou non monotone du générateur de vide.