Electronic governor system and control device of the same
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United States of America Patent
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May 27, 2014
Grant Date -
Jan 5, 2012
app pub date -
Apr 28, 2011
filing date -
Apr 30, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
When control to maintain a constant engine rotation number is executed, the electronic control unit constantly monitors an error of detected throttle position data with respect to a desired throttle control value, executes a first stage of a failure judgment method to judge that a failure of a throttle control system has occurred in a case where an absolute value of the error exceeds a predetermined threshold value continuously for a predetermined time or longer, and executes a second stage of the failure judgment method to judge that a serious failure has occurred in the system in a case where a detected engine rotation number exceeds a predetermined rotation number continuously for a predetermined time or longer, to perform predetermined operations in accordance with the judgment results.
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