Patent · US Active

Method for controlling a hybrid drivetrain

US9120481B2 · kind B2 · utility

1Cited by

1References

8Claims

0Family size

Assignee

GETRAG Getriebe- und Zahnradfabrik Hermann Hagen · DE

Inventors

Uli Christian Blessing · Heilbronn, DE
Thomas Hoffmeister · Ditzingen, DE
Ingo Matusche · Untergruppenbach, DE
Thorsten Stepper · Waldenbuch, DE
Philipp Knöpfle · Ludwigsburg, DE

Key dates

Filing date	Sep 11, 2013
Grant date	Sep 1, 2015
Priority date	—
Expiry date	Sep 11, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S903/902
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

Method for controlling a hybrid drivetrain which has a drive engine and a dual-clutch gearbox which, to establish two power transmission paths, has a first and a second friction clutch and a first and a second component gearbox. An electric machine is connected to the second power transmission path downstream of the second friction clutch in the power flow direction. Purely electric driving operation can be realized by means of the second component gearbox assigned to the second friction clutch. In the event of a gear change in the second component gearbox during purely electric driving operation, a fill-in torque is provided. The fill-in torque is provided from inertial energy of the previously cranked, non-fired drive engine, wherein the drivetrain also has an electric starter motor, and wherein the starter motor is used to crank the drive engine.

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