Appeal No. 2005-2341 Παγε 6
Application No. 10/420,187
controller 3 on the basis of the stored control data and the manipulation amounts of
operating levers, and stores them as fault data.
The controller 4 is a valve controller 4 for controlling control valves disposed in a
hydraulic pipe circuit between hydraulic pumps and such hydraulic actuators as boom
cylinders. The valve controller 4 outputs driving signals 15a, . . . to a plurality of such
actuators 15, . . . as solenoids provided to control values. The valve controller 4
receives detection signals 14a, . . . from a plurality of such sensors 14, . . . as hydraulic
sensors provided in the hydraulic circuit. The valve controller 4 also stores, as control
data, the received detection signals 14a, . . . and the driving signals 15a, . . . to be
outputted. Further, the valve controller 4 creates fault data indicative of faults in parts
controlled by the valve controller 4 on the basis of the stored control data, manipulated
positions of switches and the manipulation amounts of operating levers, and stores
them as fault data.
The controller 1 is a monitor panel 1 disposed in a driver's cab. The monitor
controller 1 selectively instructs one of various sorts of controls through operator's
switch manipulation according to one of various sorts of works to be carried out by the
hydraulic shoveling machine, receives a detection signal from a fuel meter, and to
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