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:
May. 08, 2018
Filed:
Nov. 04, 2016
GM Global Technology Operations Llc, Detroit, MI (US);
Leon O Cribbins, Dexter, MI (US);
Nigel K Hyatt, West Bloomfield, MI (US);
Carl B Bowman, Wixom, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
A method of improving active fuel management reactivation torque responsiveness. The method includes detecting a driver torque request signal for increased torque output during active fuel management reactivation, modifying a torque request signal ramp rate based on excess air pressure available within an engine manifold during active fuel management, performing torque shaping on the driver torque request signal using the modified torque request signal ramp rate to obtain a shaped driver torque request signal, modifying manifold model torque estimation based on the excess air pressure available within the engine manifold during active fuel management reactivation, and modifying the smoothed driver torque request signal based on the modified manifold model to increase torque output responsiveness proportional to the driver torque request signal when exiting active fuel management.