Patent ID: 9085871
Filing Date: 2015-07-21
Classification: B60T,E02F,F15B

Abstract:
1. A swing brake control apparatus for construction machinery, for a swing brake apparatus for the construction machinery having a lower moving body, and an upper swing body supported to be capable of swinging on the lower moving body, the swing brake control apparatus comprising: a swing motor configured to drive the upper swing body; a swing brake configured to stop the swing motor; a swing brake valve configured to vary and control actuation and disengaging of the swing brake; a solenoid valve provided on the swing brake valve and configured to control the varying of the swing brake valve; an actuation sensor configured to apply a first reference signal and a second reference signal for actuating driving of the upper swing body, based on a movement of a swing actuating unit, the second reference signal being generated when an amount of displacement of the swing actuating unit is greater than the first reference signal; and a controller configured to perform controlling to actuate the swing brake valve and disengage the swing brake when the first reference signal is input from the actuation sensor, and to actuate the swing motor when the second reference signal is input.