Information management system for construction machine
US9133602B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2012 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Feb 2, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/72
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention provides an information management system suitable for a construction machine, which drives a solenoid valve separately from normal control to thereby make it possible to perform failure diagnosis for the solenoid valve and each sensor easily and with satisfactory accuracy. A controller has a failure diagnosis mode selected by a control panel of a display device. When the failure diagnosis mode is selected by the control panel and instructions for failure diagnosis related to a specific solenoid valve of a plurality of solenoid valves are given, the controller outputs a failure diagnosis drive signal to the specific solenoid valve, inputs an output value from a sensor related to the specific solenoid valve among a plurality of sensors, and displays, based on the output value from the specific sensor, information as to whether the specific solenoid valve and the specific sensor are normal on a display device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.