Patent · US Active

Control device and method for operating a hybrid drive

US12344231B2 · kind B2 · utility

0Cited by

0References

10Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Michael Friedrich · Wolfschlugen, DE
Markus Nussbaumer · Ravensburg, DE

Key dates

Filing date	Apr 7, 2020
Grant date	Jul 1, 2025
Priority date	—
Expiry date	Nov 26, 2041

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/62
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A hybrid drive includes an internal combustion engine, an electrical machine, at least one torsional vibration damper, and an electronic control unit. The torsional vibration damper is designed for optimal vibration damping during operation of the internal combustion engine with the full number of cylinders of the internal combustion engine switched-on in internal-combustion-engine mode. The electronic control unit is further designed such that, in purely electric-motor mode where no cylinders are switched on, the electrical machine simulates the cylinder-ignition-dependent torque excitations of the switched-off internal combustion engine substantially identically until the internal combustion engine is switched back on.

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