Engine start control system
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United States of America Patent
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Sep 29, 2015
Grant Date -
Sep 26, 2013
app pub date -
Mar 18, 2013
filing date -
Mar 26, 2012
priority date (Note) -
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Abstract
When an ECM activates as powered from a generator, a decision unit determines occurrence of instantaneous interruption and reactivation of the ECM, if engine speed detected by an engine speed sensor immediately after activation of the ECM is found to be not smaller than a predetermined number of rotation Y. When occurrence of the instantaneous interruption and reactivation is actually determined, the ECM terminates operation of the engine. On the other hand, if occurrence of the instantaneous interruption and reactivation is not determined, the ECM detects, using a maximum value detection unit, a maximum value of pressure in the intake pipe detected by a pressure sensor, within a predetermined range of crank angle after activation of the ECM, stores the maximum value into a memory for later use as the atmospheric pressure, and uses it for control of fuel injection by an injector.
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