DRIVING CONTROL DEVICE OF CONSTRUCTION MACHINE
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Nov 12, 2015
app pub date -
Jan 25, 2013
filing date -
Jan 25, 2013
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
Disclosed is a driving control device for securing the operability at the beginning of driving by operating a driving operation device so as to prevent the quick start of equipment at the time of starting. A driving control device of a construction machine, according to the present invention, comprises: a hydraulic pump; a driving motor; a control valve provided to a path between the hydraulic pump and the driving motor and controlling the starting, stopping and direction conversion of the driving motor at the time of conversion; a driving speed selection valve provided to a path between a pilot pump and the driving motor and controlling the swivel angle of the swash plate of the driving motor at the time of conversion; a driving operation device provided to a path between the pilot pump and the control valve and outputting second signal pressure for converting the control valve at the time of operation; an operation amount detection means for detecting the operation amount of the driving operation means; and a control unit for outputting control signals to the driving speed selection valve such that the driving motor is converted to a low speed state if the operation amount of the driving operation device, which is detected by the operation amount detection means, is smaller than a preset set value, and the driving motor is converted to a high speed state if the operation amount of the driving operation device is larger than the preset set value.
First Claim
Other Claims data not available