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:
Nov. 10, 2026
Filed:
Nov. 07, 2022
Robert Bosch Gmbh, Stuttgart, DE;
Andreas Vogt, Renningen, DE;
Peter Ropertz, Oberriexingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a method for operating a drive train () having an electromotive drive (), wherein a speed and a drive torque of the electromotive drive () can be converted via a toothed transmission stage () for an output (), and the electromotive drive () is controlled with a control signal (), wherein a periodic torque change signal () which alternately reduces and amplifies the drive torque is superimposed on the control signal () in order to damp transmission noises, wherein the periodic torque change signal () is in phase with a periodic change in the tooth stiffness of the toothed transmission stage (). The method according to the invention proposes, on the basis of a software architecture extended by machine-learning knowledge, detecting a change in state of the drive train over the service life that can be attributed to a long-term change in the tooth stiffness of the transmission stage, and based on these changes, to adjust a torque control in such a way that progressive noise effects caused by ageing or wear can be better damped.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile