Method for controlling an automatic transmission of a motor vehicle

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8512205
APP PUB NO 20100204007A1
SERIAL NO

12669108

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A method of controlling an automatic transmission of a vehicle in which a hold gear function is activated by a driver request and is deactivated depending on a return condition. To allow an effective, safe to operate, and comfortable use, the return condition depends on one of the following criteria or a useful combination of the same: a flexible time span, consideration of the vehicle stand still time; a rotational speed of the vehicle engine, or one or several parameters which correlate with the engine rotational speed, a new, the same, or a different drive request by the driver, a change in the operating condition of the vehicle, and a plausibility check occurring during the startup procedure.

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First Claim

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Patent Owner(s)

  • ZF FRIEDRICHSHAFEN AG

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jager, Thomas Meckenbeuren, DE 49 596
Kneer, Reiner Nonnenhorn, DE 2 5
Mair, Roland Tettnang, DE 68 361
Winkel, Matthias Sorocaba, BR 25 113

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