Integrated control apparatus and method for engine and hydraulic pump in construction machine
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United States of America Patent
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May 24, 2016
Grant Date -
Oct 29, 2015
app pub date -
Apr 21, 2015
filing date -
Apr 24, 2014
priority date (Note) -
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Abstract
An integrated control apparatus for an engine system including an engine, a hydraulic pump driven by the engine, a control valve for controlling hydraulic oil discharged from the pump and a hydraulic actuator operated by the oil from the control valve. The apparatus includes a power mode determiner calculating an auto mode change index as a function of a first state value representing a work load of the pump and a second state value representing a work speed required by an operator to determine whether a current power mode of the pump is to be changed, a pump power determiner determining a power mode of the pump based on a result of whether the current power mode of the pump is to be changed, and an engine speed determiner determining an engine speed based on the result of whether the current power mode of the pump is to be changed.
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