Patent ID: 9347467
Filing Date: 2016-05-24
CPC Classification: E02F,F02D,F15B

Claim Text:
1. A method, comprising: receiving, by a control device of construction equipment in which an engine and a pump are connected to the control device, control information according to equipment characteristics, user setting information from an instrument panel, or engine rpm adjustment information through an engine control dial; and controlling, by the control device, a flow rate of an attachment coupled to the construction equipment, which performs specific work using working oil supplied from the pump, the controlling of the flow rate comprising: selecting an optimum engine rpm corresponding to the attachment connected to the construction equipment; selecting a flow rate range to be used in the attachment; and resetting the flow rate range of the attachment by resetting the engine rpm when a maximum flow rate in the selected flow rate range is higher than a maximum pump flow rate dischargeable by the pump at a preset engine rpm.