Patent · US Active

Method for operating a drive train, and vehicle drive train with electromotive drive

US12176830B2 · kind B2 · utility

0Cited by

0References

12Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

David Gaenzle · Echterdingen, DE
Jochen Fassnacht · Calw, DE
Maximilian Manderla · Ludwigsburg, DE

Key dates

Filing date	May 4, 2021
Grant date	Dec 24, 2024
Priority date	—
Expiry date	Oct 31, 2041

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/72
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a vehicle drive train and to a method for operating a drive train with an electromotive drive (4), wherein a rotational speed and a drive torque of the drive (4), which are convertible via a toothed transmission stage (12) for an output (19), and the drive (4) is controlled by means of a control signal (40), wherein the control signal (40) has superimposed thereon a periodic torque change signal (5), which is in phase with a tooth stiffness change of the toothed transmission stage (12), wherein a signal strength of the torque change signal (5) is lower with decreasing tooth stiffness than with increasing tooth stiffness.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.