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. 02, 2025
Filed:
May. 29, 2024
Fca Us Llc, Auburn Hills, MI (US);
Barry A Mason, Bradford, CA;
Christopher A Tuckfield, Bloomfield Hills, MI (US);
FCA US LLC, Auburn Hills, MI (US);
Abstract
A control system that control speed of an internal combustion engine (ICE) in a series hybrid vehicle includes an accelerator pedal, a vehicle speed sensor and a controller. The accelerator pedal sends a torque request signal. The vehicle speed sensor sends a vehicle speed signal. The controller receives the torque request signal and the vehicle speed signal. The controller is configured to determine, based on the torque request and vehicle speed signals, a plurality of allowed emulated gear ratios; calculate an engine speed for each allowed emulated gear ratio; determine a most efficient engine torque for the calculated engine speeds of each allowed emulated gear ratio; select a desired emulated gear ratio having a most efficient operating point from the plurality of allowed emulated gear ratios; and control the ICE to operate at a corresponding engine speed associated with the desired emulated gear ratio.