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:
Sep. 24, 2019
Filed:
Apr. 13, 2018
Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);
The Regents of the University of Michigan, Ann Arbor, MI (US);
Dominic Liao-McPherson, Ann Arbor, MI (US);
Ilya Kolmanovsky, Novi, MI (US);
Mike Huang, Ann Arbor, MI (US);
Shinhoon Kim, Ann Arbor, MI (US);
Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);
The Regents of the University of Michigan, Ann Arbor, MI (US);
Abstract
Systems and methods for controlling an engine airpath include receiving, at a supervisory controller, an engine speed corresponding to a present engine speed, a fuel target corresponding to a request for torque from a driver and one or more state estimates generated by an estimator. The supervisory controller predicts, over a prediction horizon, a constraint violation in response to the engine speed, the fuel target, and the one or more state estimates using a prediction model, adjusts an EGR rate target to a modified value, when the constraint violation is predicted, and maintains the EGR rate target at a nominal value when the constraint violation is not predicted. A nonlinear predictive controller generates one or more actuator commands based on the EGR rate target, where the one or more actuator commands control an engine actuator such that an EGR rate of the engine airpath tracks the EGR rate target.