Method and system for variable cam timing device

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United States of America Patent

PATENT NO 9840943
APP PUB NO 20160348544A1
SERIAL NO

15232678

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Abstract

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Methods and systems are described for an engine with a cam torque actuated variable cam timing phaser. Phaser positioning control is improved by reducing inaccuracies resulting from inadvertent spool valve and/or phaser movement when the spool valve is commanded between regions. In addition, improved spool valve mapping is used to render phaser commands more consistent and robust.

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Patent Owner(s)

Patent OwnerAddress
FORD GLOBAL TECHNOLOGIES LLCFAIRLANE PLAZA SOUTH SUITE 800 330 TOWN CENTER DRIVE DEARBORN MI 48126

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Badillo, Ed Flat Rock, US 24 238
Hanshaw, Jamie Charles South Lyon, US 15 76
Pietrzyk, Paul A Beverly Hills, US 19 104
Rollinger, John Eric Troy, US 184 2405

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