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:
Dec. 31, 2024
Filed:
Nov. 16, 2021
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Johannes Kemler, Lindau, DE;
Frank Deprez, Mariabrunn, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A method for operating a hybrid vehicle includes, depending on a presence of a control-side demand to engage a separating clutch (), implementing an engagement process of the separating clutch () during driving under purely electric motor power and, depending on the presence of a control-side demand to implement an upshift in a transmission (), implementing a gear ratio change from a current gear of the upshift into a target gear of the upshift. In response to the control-side demand to engage the separating clutch () and the control-side demand to implement the upshift, the method includes checking whether the upshift is necessary in order to prevent a vehicle-side rotational speed from reaching or exceeding a rotational speed limit value. When the upshift is necessary in order to prevent the vehicle-side rotational speed from reaching or exceeding the rotational speed limit value, the implementation of the upshift in the transmission is prioritized over the implementation of the engagement process of the separating clutch.