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:
Jan. 13, 2026
Filed:
Apr. 07, 2025
Fca Us Llc, Auburn Hills, MI (US);
Nadirsh D Patel, Auburn Hills, MI (US);
Hangxing Sha, Auburn Hills, MI (US);
Krishna Chaitanya Reddy Madireddy, Auburn Hills, MI (US);
Harshal Sudhir Kudupley, Auburn Hills, MI (US);
FCA US LLC, Auburn Hills, MI (US);
Abstract
A powertrain control method for a vehicle includes determining, based on empirical operation data for a powertrain, maximum torques for the torque generating system at each of a plurality of breakpoints corresponding to different impeller speeds for a torque converter and different speeds of a torque generating system, identifying, between two particular breakpoints, (i) a linear intersection point between the maximum torque and the impeller speed for the torque converter and (ii) an intersection region between the two particular breakpoints, determining a quadratic polynomial representation of the impeller speed for the torque converter across the intersection region based on the empirical operation data for the torque converter, and utilizing the quadratic polynomial representation of the impeller speed for the torque converter across the intersection region for improved control of the powertrain.