Appeal No. 2005-2341 Παγε 7
Application No. 10/420,187
control a display unit to cause information necessary for driving the machine and fault
code information to be displayed on the liquid crystal display screen thereof.
The monitor controller 1, pump controller 2, governor controller 3 and valve
controller 4 are interconnected for mutual communication by means of a signal line 19.
When an operator manipulates the monitor controller 1 and selects, for example, 'heavy
excavation' as a working mode, the monitor panel 1 outputs a control signal to the
respective controllers 2, 3 and 4 via the signal line 19 to provide an engine rotational
speed and output torque corresponding to the 'heavy excavation' and to perform such a
predetermined control as automatic deceleration function. The monitor panel 1 also
receives the respective fault data from the controllers 2, 3 and 4 via the signal line 19,
arranges these data on a time series basis, and stores the arranged data as a fault
history. Further, the monitor panel 1 stores its own fault data (error information) and
also stores the working mode being currently selected and its own control signal to be
outputted to the respective controllers 2, 3 and 4.
The signal line 19 is connected with another extension of signal line 19a for
external connection. The signal line 19a has a connector 18 provided thereon for
mutual connection between the external and internal controllers of the hydraulic
shoveling machine.
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Last modified: November 3, 2007