Lubrication supply control system
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United States of America Patent
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Mar 7, 2006
Grant Date -
May 13, 2004
app pub date -
Nov 5, 2003
filing date -
Nov 5, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
An engine has a lubrication system to lubricate at least a portion of the engine with lubricant. The lubrication system has a lubrication pump that periodically pressurizes the lubricant toward the portion of the engine. A first sensor senses an engine speed. A second sensor senses an engine load. A third sensor senses a temperature of the lubricant or the engine. A control device controls the lubrication pump. The control device determines a frequency of periodic pressurization by the lubrication pump based upon outputs from the first and second sensors. The control device determines a pressurization time of the lubrication pump based upon at least one of outputs from the first sensor, second sensor, third sensor, and a battery voltage.
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