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:
Apr. 28, 2020
Filed:
Feb. 20, 2018
Deere & Company, Moline, IL (US);
John L. Lahti, Cedar Falls, IA (US);
Michael J. Pipho, Dunkerton, IA (US);
Dustin W. Ridenour, Independence, IA (US);
Michael J. Maney, Waterloo, IA (US);
DEERE & COMPANY, Moline, IL (US);
Abstract
A variable geometry turbocharger control method includes monitoring parameters of an engine using a plurality of sensors and generating engine state estimates using an engine observer model. The engine observer model represents the intake manifold volume, the exhaust manifold volume, and the charge air cooler volume. The engine state estimates are based on the monitored engine parameters from the plurality of sensors. The method also includes calculating a turbine intake correction factor based on the differences between the measured engine states and the engine state estimates and inputting the turbine intake correction factor to the engine observer model. The method further includes determining a desired turbocharger vane position based on setpoint commands, the monitored engine parameters, the turbine intake correction factor, and the engine state estimates. The method additionally includes adjusting positions of the vanes of the variable geometry turbocharger based on the desired turbocharger vane position.