Working machine

Abstract

A working machine includes a vehicle body configured to be coupled to a working device, a prime mover disposed on the vehicle body and configured to change a maximum output, and a control device configured to control the prime mover, the control device having a change obtaining part configured to obtain a change command to change the maximum output of the prime mover. The control device is configured to change the maximum output when the change obtaining part obtains the change command.

What is claimed is: 
     
         1 . A working machine comprising:
 a vehicle body configured to be coupled to a working device; and   a prime mover disposed on the vehicle body and configured to change a maximum output.   
     
     
         2 . The working machine according to  claim 1 , comprising
 a control device configured to control the prime mover, the control device having
 a change obtaining part configured to obtain a change command to change the maximum output of the prime mover, 
   wherein the control device is configured to change the maximum output when the change obtaining part obtains the change command.   
     
     
         3 . The working machine according to  claim 2 ,
 wherein the control device includes:
 a storage part configured to store:
 a standard control map representing a relation between a revolution speed of the prime mover and an output of the prime mover; and 
 a change control map other than the standard control map, the change control map representing a relation between the revolution speed of the prime mover and the output of the prime mover; 
 
 a standard control part configured to control the prime mover based on the standard control map when the change obtaining part does not obtain the change command; and 
 a change control part configured to control the prime mover based on the change control map when the change obtaining part obtains the change command. 
   
     
     
         4 . The working machine according to  claim 2 ,
 wherein the control device includes:
 a storage part configured to store a standard control map representing a relation between a revolution speed of the prime mover and an output of the prime mover; 
 a control map creation part configured to change the standard control map stored in the storage part and to create a change control map; 
 a standard control part configured to control the prime mover based on the standard control map when the change obtaining part does not obtain the change command; and 
 a change control part configured to control the prime mover based on the change control map when the change obtaining part obtains the change command. 
   
     
     
         5 . The working machine according to  claim 1 , comprising
 a position detecting device configured to detect a machine position that is a position of either one of the vehicle body and the working device,   wherein the prime mover is configured to change the maximum output based on the machine position detected by the position detecting device.   
     
     
         6 . The working machine according to  claim 1 , comprising
 a time counting part configured to count time,   wherein the prime mover configured to change the maximum output based on the time counted by the time counting part.   
     
     
         7 . The working machine according to  claim 1 ,
 wherein the prime mover is configured to change the maximum output based on the working device coupled to the vehicle body.   
     
     
         8 . The working machine according to  claim 1 , comprising:
 an operator seat; and   a change-operation member disposed forward from or lateral to the operator seat and configured to change the change command when being operated,   wherein the prime mover is configured to change the maximum output when the change-operation member is operated.   
     
     
         9 . The working machine according to  claim 2 , comprising:
 a position detecting device configured to detect a machine position that is a position of either one of the vehicle body and the working device;   a change-position obtaining part configured to obtain an output-change position that is a position where the maximum output is changed; and   a change-position setting part configured to output the change command to the change obtaining part when the machine position is matched with the output-change position obtaining by the change-position obtaining part.   
     
     
         10 . The working machine according to  claim 9 , comprising
 a display device configured to set the output-change position.   
     
     
         11 . The working machine according to  claim 2 , comprising:
 a time counting part configured to count time;   a change-time obtaining part configured to obtain an output-change time that is time when the maximum output is changed; and   a change-time setting part configured to output the change command to the change obtaining part when the time counted by the time-counting part is matched with the output-change time obtaining by the change-time obtaining part.   
     
     
         12 . The working machine according to  claim 11 , comprising
 a display device configured to set the output-change time that is time when the maximum output is changed.   
     
     
         13 . The working machine according to  claim 2 , comprising:
 a change-device obtaining part configured to obtain device information of the working device whose maximum output is changed; and   a change device setting part configured to output the change command to the change obtaining part when the device information obtained by the change-device obtaining part represents the working device coupled to the vehicle body.   
     
     
         14 . The working machine according to  claim 13 , comprising
 a display device configured to set the device information of the working device whose maximum output is changed.   
     
     
         15 . The working machine according to  claim 1 ,
 wherein the change obtaining part obtains the change command from an external device.   
     
     
         16 . The working machine according to  claim 1 , comprising
 a change-time calculating part configured to calculate an elapsed time counted from the changing of the maximum output of the prime mover.   
     
     
         17 . The working machine according to  claim 1 ,
 wherein the prime mover is configured to change a maximum output,   and wherein the display device is configured to display the maximum output after changed.   
     
     
         18 . The working machine according to  claim 17 ,
 wherein the display device is configured to display the maximum output before changed and the maximum output after changed.   
     
     
         19 . The working machine according to  claim 17 ,
 wherein the display device is configured to display, after the change-operation member is operated, whether the output is allowed to be changed.   
     
     
         20 . The working machine according to  claim 19 ,
 wherein the display device is configured to display guide of a condition to change the output, when the output is not allowed to be changed.   
     
     
         21 . The working machine according to  claim 1 ,
 wherein the display device is configured to display a cost generated by the change of the output.