The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 03, 2015
Filed:
Jan. 10, 2011
Jean-claude Habumuremyi, Haaltert, BE;
Volodia Naydenov, Louvain-la-Neuve, BE;
Joel Op DE Beeck, Lint, BE;
Jean-Claude Habumuremyi, Haaltert, BE;
Volodia Naydenov, Louvain-la-Neuve, BE;
Joel Op De Beeck, Lint, BE;
INERGY AUTOMOTIVE SYSTEMS RESEARCH (Societe Anonyme), Brussels, BE;
Abstract
A method for regulating a motor-driven pump of an SCR system, the pump delivering a pressure, being subjected to a hydraulic torque in relation to this pressure and also to a resistive torque and being driven by an electric motor including coils supplied with a current and developing a torque in relation to this current, according to which to regulate the pump, use is made of a mechanism to measure the current in the coils of the motor, of a regulator of overall current consumed by the motor, and of a model of the relation between the current and the pressure using an estimate of part of the resistive torque, namely the dry frictions, obtained by rotating the pump under no-load conditions at different speeds and by measuring the associated current.