Patent · US Active

Method and system for operating a hybrid vehicle

US9037330B2 · kind B2 · utility

0Cited by

1References

8Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Bernd Allgaier · Kreßbronn, DE
Michael Gromus · Friedrichshafen, DE
Friedrich Tenbrock · Tettnang, DE
Thomas Lemp · Tettnang, DE

Key dates

Filing date	Apr 12, 2013
Grant date	May 19, 2015
Priority date	—
Expiry date	Apr 12, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S903/93
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A method for operating a hybrid vehicle comprises conducting unfire operation in an internal-combustion engine in a fuel cut-off mode during a hybrid-mode ride in deceleration of the internal-combustion engine, disconnecting the internal-combustion engine from an output while maintaining the fuel cut-off mode, and reducing a transmission capacity of a clutch configured to couple the internal-combustion engine and an electric motor. During a hybrid-mode ride in deceleration of the internal-combustion engine for transition to the purely electric drive, the internal-combustion engine may be disconnected from the output and shut down. When the internal-combustion engine is operated unfired in a fuel cut-off mode, the internal-combustion engine may be disconnected from the output and shut down by reducing the transmission capacity of the clutch that is connected between the internal-combustion engine and the electric motor.

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