To complete a filter regenerating action, and to surely prevent the abrupt actuation of an actuator.
When a regeneration starting switch 15 is operated and it is determined that the regeneration of a filter is required, a high idle speed is outputted to an engine control section 10 from a controller 12 according to a signal from an accumulation amount sensor 16, a pump discharge rate maximum command is outputted to a pump regulator 11, a closing command is outputted to an unloading valve 9, and pilot pressure shutoff commands are outputted to pilot pressure shutoff valves 7 and 7. Thus, even if remote-controlled valves 5 and 5 are operated during filter regeneration control, a control valve 3 does not operate, the filter regenerating action is completed, and the actuation of the hydraulic actuator 4 is stopped.
COPYRIGHT: (C)2010,JPO&INPIT
| JP3073380B2 | ||||
| JP2002115277A | ||||
| JP2006083828A |
Masataka Otani
Muramatsu Toshiro