Patent · US Active

Control unit and method for operating a hybrid drive

US12055104B2 · kind B2 · utility

0Cited by

4References

5Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Michael Etzel · Munich, DE
Michael Friedrich · Wolfschlugen, DE
Sebastian Liebert · Unterföhring, DE

Key dates

Filing date	Nov 13, 2019
Grant date	Aug 6, 2024
Priority date	—
Expiry date	Aug 2, 2040

Classification

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

Abstract

A controller and a method for a hybrid drive, which includes an internal combustion engine and an electrical machine are provided. The internal combustion engine includes adjustment devices that deactivate the intake and exhaust valve opening actuation. The controller is designed in such a way that, in the case of at least one specified condition (such as regeneration during unfired overrun or in the case of electric travel, in particular in the case of operation with high activation frequency of the internal combustion engine, e.g., in charge sustaining or HEV operation), the intake and exhaust valves are kept at least approximately (preferably completely) closed at least approximately simultaneously while the internal combustion engine is unfired. The internal combustion engine must be connected to the electrical machine. If there is a disconnect clutch, the disconnect clutch is brought into the closed state or remains closed.

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