Method and control device thereto for operating a powertrain

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9593769
APP PUB NO 20150260282A1
SERIAL NO

14657055

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Abstract

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A method for operating a drive train that includes a converter as the start-up element, an automatic transmission, and an output, whereas, after start of the drive unit, the rotational speed of a turbine of the converter is monitored, whereas, if it is determined that, within a defined first time frame after the start of the drive unit, the rotational speed of the turbine reaches or exceeds a first threshold value, a properly filled converter is inferred. If, within the defined first time frame, the rotational speed of the turbine falls short of the first threshold value, an improperly filled converter or a converter that has run empty is inferred.

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Patent Owner(s)

Patent OwnerAddress
ZF FRIEDRICHSHAFEN AGPHILIP DELIE LUDWIGSHAFEN GERMANY FRIEDRICHSHAFEN BADEN-WURTTEMBERG

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arnold, Jörg Immenstaad, DE 17 29
Schmidt, Thilo Meckenbeuren, DE 108 619
Steinhauser, Klaus Kressbronn, DE 71 528

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