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. 21, 2021
Filed:
Jul. 15, 2020
Shuonan Xu, Troy, MI (US);
Ethan a Bayer, Lake Orion, MI (US);
William Attard, Brighton, MI (US);
David a Lawrence, Lake Orion, MI (US);
Nandanshri Bagadi, Shelby Township, MI (US);
Shuonan Xu, Troy, MI (US);
Ethan A Bayer, Lake Orion, MI (US);
William Attard, Brighton, MI (US);
David A Lawrence, Lake Orion, MI (US);
Nandanshri Bagadi, Shelby Township, MI (US);
FCA US LLC, Auburn Hills, MI (US);
Abstract
Engine combustion phasing control techniques utilize a trained feedforward artificial neural network (ANN) to model both base and maximum brake torque (MBT) spark timing based on six inputs: intake and exhaust camshaft positions, mass and temperature of an air charge being provided to each cylinder of the engine, engine speed, engine coolant temperature. The selected target spark timing could be adjusted based on a two-dimensional surface having engine speed and air charge mass as inputs. The target spark timing adjustment could be performed only during an initial period when the trained ANN is immature. The ANN could also be trained using dynamometer data for the engine that is artificially weighted for high load regions where accuracy of spark timing is critical.