US Patent 7920949 Feedback adjustment for open-loop torque control map
Patent 7920949 was granted and assigned to Caterpillar Inc. on April, 2011 by the United States Patent and Trademark Office.
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Patent abstract
A variator torque control system and method utilize a hydraulic actuator to control the variator output via a torque control map, wherein the values of the torque control map are evaluated and modified during use of the map to improve map accuracy. In an example, errors in the map are evaluated to determine whether a system fault has occurred.
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Patent Inventor Names
Adam J Vaccari0
Brian D Kuras0
Frank A DeMarco0
Tyler Bowan0
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US Patent 07920949 Feedback adjustment for open-loop torque control map US Patent 7920949 Feedback adjustment for open-loop torque control map
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Patent Number
07920949
Patent Number
7920949
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Official Website
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US Patent 07920949 Feedback adjustment for open-loop torque control map
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Is a
Current assignee
Patent jurisdiction
Patent number
07920949
Date of patent
April 5, 2011
Patent application number
11752136
Date Filed
May 22, 2007
Patent primary examiner
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