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:
Feb. 11, 2025
Filed:
Jan. 19, 2024
Hyundai Motor Company, Seoul, KR;
Kia Corporation, Seoul, KR;
Sang Chul Lee, Seoul, KR;
HYUNDAI MOTOR COMPANY, Seoul, KR;
KIA CORPORATION, Seoul, KR;
Abstract
A shift control method for a vehicle powertrain includes determining, by a controller, whether a transmission is shifting and determining the type of shifting when the transmission is shifting, selecting a predetermined control matrix depending on whether the transmission is shifting and the type of shifting, calculating a necessary torque of a control target shift element on the basis of the selected control matrix, calculating a control hydraulic pressure for implementing the necessary torque of the control target shift element, and controlling the control target shift element by using the calculated control hydraulic pressure, and the control matrix is calculated by using relationship formulas of angular velocities, angular accelerations, moments of inertia, and torques of powertrain components and using a boundary condition according to a state of the transmission.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile