DIAGNOSTIC INFORMATION SUPPLY APPARATUS FOR CONSTRUCTION MACHINE

• US 20110227744A1
• Filed: 07/31/2009
• Published: 09/22/2011
• Est. Priority Date: 12/26/2008
• Status: Abandoned Application

• Current Assignee: Hitachi Construction Machinery Company Limited (Hitachi, Ltd.)
• Original Assignee: Hitachi Construction Machinery Company Limited (Hitachi, Ltd.)
• Inventors: Furuno, Yoshinori, Shibata, Kouichi
• Application Number:
  US13/129,917
• Publication Number:
  US 20110227744A1
• Time in Patent Office: Days
• US Class Current: 340/679
• CPC Class Codes: E02F 9/2054 Fleet management
• CPC Class Codes: E02F 9/267 Diagnosing or detecting failure of vehicles
• CPC Class Codes: G05B 23/0272 Presentation of monitored results, e.g. selection of status reports to be displayed; Filtering information to the user
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C
• CPC Class Codes: G07C 5/085 using electronic data carriers

Abstract

An information supply apparatus for a construction machine is adapted to enhance alarm/trouble cause checking accuracy. A user-side personal computer 4 or other apparatus, remote from a hydraulic excavator 1, acquires chronological data relating to alarm/trouble occurrence information on the hydraulic excavator 1, chronological data relating to engine on/off and engine key switch on/off information, and chronological data relating to operational-state physical quantities. The apparatus displays an item list of acquired alarm/trouble occurrence information, enables an operator to select first alarm/trouble occurrence information from the item list, automatically selects second alarm/trouble occurrence information with respect to the selected first alarm/trouble occurrence information, on the basis of a previously stored combination of alarms/trouble events which have some association with probable causes, and displays the chronological data relating to the thus-selected alarm/trouble occurrence information, together with the chronological data relating to the engine on/off and engine key switch on/off information.

Claims

1. A diagnostic information supply apparatus for a construction machine, provided at a position remote from the construction machine in order to acquire chronological data relating to alarm/trouble occurrence information on the machine, chronological data relating to engine on/off and engine key switch on/off information, and chronological data relating to operational-state physical quantities, the apparatus comprising:

item list display means that displays an item list of acquired alarm/trouble occurrence information;

first alarm/trouble occurrence information selection means for an operator to select first alarm/trouble occurrence information from the item list of acquired alarm/trouble occurrence information, displayed by the item list display means;

first storage means that previously stores combinations of alarms/trouble events which are likely to have some association with probable causes;

second alarm/trouble occurrence information selection means that automatically selects second alarm/trouble occurrence information with respect to the first alarm/trouble occurrence information selected by the first alarm/trouble occurrence information selection means, on the basis of the combination prestored by the first storage means; and

alarm/trouble data display means that displays, together with the chronological data relating to the engine on/off and key switch on/off information, chronological data relating to the alarm/trouble occurrence information selected by the alarm/trouble occurrence information selection means.

2. The diagnostic information supply apparatus for the construction machine according to claim 1,

wherein, when a command that means automatic selection of the second alarm/trouble occurrence information is issued through operator entry, the second alarm/trouble occurrence information selection means selects the second alarm/trouble occurrence information with respect to the first alarm/trouble occurrence information selected by the first alarm/trouble occurrence information selection means, on the basis of the combination prestored by the first storage means.

3. The diagnostic information supply apparatus for the construction machine according to claim 1,

wherein the alarm/trouble data display means includes graph display means that displays a chronological event information display screen to show in graphical form, together with the chronological data relating to the engine on/off and key switch on/off information, the chronological data relating to the alarm/trouble occurrence information selected by the alarm/trouble occurrence information selection means.

4. The diagnostic information supply apparatus for the construction machine according to claim 3, further comprising:

third alarm/trouble occurrence information selection means for the operator to select one piece of alarm/trouble occurrence information and occurrence time of the alarm/trouble on the chronological event information display screen displayed by the graph display means, and then to specify switching to a chronological operational-state physical quantities display screen;

second storage means that previously stores combinations of alarms/trouble event and operational-state physical quantities as useful information for cause checking of the alarms/trouble event;

operational-state physical quantities selection means that selects operational-state physical quantities with respect to the alarm/trouble occurrence information selected by the third alarm/trouble occurrence information selection means, on the basis of the combination prestored by the second storage means; and

operational-state data display means that displays the chronological operational-state physical quantities display screen to show in graphical form, together with chronological data relating to the engine on/off and key switch on/off information, chronological data relating to the operational-state physical quantities selected by the operational-state physical quantities selection means in the period that is set so as to include the occurrence time of the alarm/trouble selected by the third alarm/trouble occurrence information selection means.

5. The diagnostic information supply apparatus for the construction machine according to claim 1,

wherein the alarm/trouble data display means includes listing means that displays in list form, together with the chronological data relating to the engine on/off and key switch on/off information, the chronological data on the alarm/trouble occurrence information selected by the alarm/trouble occurrence information selection means.

6. The diagnostic information supply apparatus for the construction machine according to claim 5,

wherein the listing means displays starting and ending time of alarm/trouble occurrence, engine on/off switching time, and key switch on/off switching time together, as well as differences in time among the three kinds of time.