Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Construction or agricultural-type vehicle
Reexamination Certificate
2006-12-04
2011-12-20
Will, Thomas (Department: 3671)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Construction or agricultural-type vehicle
C477S068000
Reexamination Certificate
active
08082082
ABSTRACT:
An engine load control device is adapted to a working vehicle in which output of an engine is transmitted to drive wheels and to hydraulic actuators including a working equipment hydraulic actuator via a plurality of variable capacity hydraulic pumps. The control device includes an engine speed detection unit that detects an engine speed, an instruction content detection unit that detects contents of instructions of a speed instruction device, a hydraulic pump load detection unit that detects load of at least one load detection hydraulic pump among the variable capacity hydraulic pumps, and an absorption torque control unit. The absorption torque control unit controls absorption torque of at least one control hydraulic pump other than the load detection hydraulic pump based on detection results of the engine speed detection unit, the instruction content detection unit, and the hydraulic pump load detection unit.
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Office Action dated on Sep. 29, 2010 of the corresponding German Application No. 11 2006 003 119.8-14.
Global IP Counselors
Komatsu Ltd.
Mitchell Joel F.
Will Thomas
LandOfFree
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