Electronic control system for construction machinery
US6718245B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2002 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Mar 27, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/2296
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system having a monitoring function in addition to a control function is able to suppress an increase in the amount of data communication and the communication frequency via a common communication line, and is flexibly adaptable for the addition of a new function without causing mutual interference between control data and monitor data. In particular, a hydraulic excavator 1 includes a first control unit 17 for a prime mover 14, a second control unit 23 for a hydraulic pump 18, a third control unit 33 for control valves 24, 25 and 26, and first and second monitor units 45, 46. A first common communication line 39 for control and a second common communication line 40 for monitoring are further provided as common buses for data communication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.