Working machine control device for construction machinery

Details Working machine control device for construction machinery Working machine control device for construction machinery

1998-01-27

1999-11-02

Novosad, Christopher J.

Earth working

Automatic power control

37414, E02F 300

Patent

active

059752149

ABSTRACT:
A working machine control device for construction machinery provided with a plurality of joined working arms, an attachment mounted to the leading end of the working arms and a plurality of actuators for driving the working arms and the attachment, includes a function to adjust a pushing force between the attachment and a working plane by automatically controlling at least one of the actuators. The control device also includes a load detecting unit for detecting a load applied from the working plane to the attachment, working machine posture detecting devices for detecting postures of the working arms and the attachment and a computing unit for computing the pushing force between the attachment and the working plane on the basis of output values from the load detecting unit and the working machine posture detecting devices. The computing unit outputs a component of the pushing force in a direction perpendicular to the working plane. A target value setting unit is also provided for setting a target of a component of a pushing force suitable for working in the direction perpendicular to the working plane. A drive control unit automatically controls at least one of the plurality of actuators so that the computed result of the computing unit agrees with the target value set by the target value setting unit.

REFERENCES:
patent: 5528843 (1996-06-01), Rocke
patent: 5572809 (1996-11-01), Steenwyk et al.
patent: 5713419 (1998-02-01), Kaczmarski et al.
patent: 5752333 (1998-05-01), Nakagawa et al.
patent: 5768811 (1998-06-01), Cooper
patent: 5810095 (1998-09-01), Orbach et al.
patent: 5826666 (1998-10-01), Tozawa et al.

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