Working machine control device for construction machinery
US5975214A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1998 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Jan 27, 2018 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F3/437
- WIPO fieldCivil engineering
- WIPO sectorOther fields
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 ac…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.