Diagnostic system for a power machine

• US 7,580,781 B2
• Filed: 12/14/2005
• Issued: 08/25/2009
• Est. Priority Date: 12/14/2005
• Status: Expired due to Fees

• Current Assignee: Clark Equipment Company (Doosan Heavy Industries and Construction Company Limited)
• Original Assignee: Clark Equipment Company (Doosan Heavy Industries and Construction Company Limited)
• Inventors: Mindeman, Spencer L.
• Primary Examiner(s): Hellner; Mark
• Application Number:
  US11/302,608
• Publication Number:
  US 20070135977A1
• Time in Patent Office: 1,350 Days
• Field of Search: 701/29, 340/438
• US Class Current: 701/29
• CPC Class Codes: G05B 23/0267 Fault communication, e.g. human machine interface [HMI]
• CPC Class Codes: G07C 2205/02 using a vehicle scan tool
• CPC Class Codes: G07C 3/00 Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
• CPC Class Codes: G07C 5/0808 Diagnosing performance data testing of vehicles G01M17/00; testing of electrical installation on vehicles G01R31/005
• CPC Class Codes: G07C 5/0825 using optical means

Abstract

A diagnostic application or system for a power machine is disclosed. The diagnostic application or system generates a diagnostic menu to select one or more diagnostic items for diagnostic monitoring. Sensor data for the selected items is retrieved from one or more sensors and displayed on an electronic display device. In the embodiments described, the application or system includes a graphical user interface component configured to generate a display options menu including one or more user selectable display formats or options.

Claims

1. A diagnostic application for a mobile power vehicle implementable on a computer readable medium comprising:

a diagnostic component configured to receive sensor data from a sensor on the mobile power vehicle for one or more user selectable diagnostic items; and

a diagnostic menu generator configured to generate a diagnostic menu including a plurality of user selectable diagnostic items on an electronic display device and a display options menu generator configured to generate a display options menu on the electronic display device including a plurality of user selectable display formats to display the sensor data for the one or more user selectable diagnostic items wherein the display options menu includes a composite graph display format and a segregated graph display format and upon selection of the composite graph display format the diagnostic application generates a scrollable graphical display segment including one or more graphs and upon selection of the segregated graphical display format the diagnostic application generates a plurality of scrollable graphical display segments for the one or more user selectable diagnostic items.

5. The diagnostic application of claim 1 wherein the retrieval of the sensor data is controlled via start or stop function buttons on the electronic display device.

18. The diagnostic application of claim 1 wherein the scrollable graphical display segment includes a plurality of graphs and the plurality of graphs are distinguished via a display legend.

2. A diagnostic application for a mobile power vehicle implementable on a computer readable medium comprising:

a diagnostic component configured to receive sensor data from a sensor on the mobile power vehicle for one or more user selectable diagnostic items; and

a diagnostic menu generator configured to generate a diagnostic menu including a plurality of user selectable diagnostic items on an electronic display device and a display options menu generator configured to generate a display options menu on the electronic display device including a plurality of user selectable display formats to display the sensor data for the one or more user selectable diagnostic items wherein the display options menu includes a graphical display format and a list view display format and upon selection of the graphical display format the diagnostic application generates a scrollable graphical display segment and upon selection of the list view display format the diagnostic application generates an alphanumerical display of the sensor data for the one or more user selectable diagnostic items.

10. The diagnostic system of claim 2 wherein the scrollable graphical display segment includes a plurality of graphs for the plurality of user selectable diagnostic items from a plurality of sensors on the mobile power vehicle.

11. The diagnostic system of claim 10 wherein the plurality of graphs have a plurality of different display colors.

12. The diagnostic system of claim 10 wherein the display option menu on the electronic display device includes a plurality of different user selectable display colors for the plurality of graphs.

13. The diagnostic system of claim 10 and comprising a legend including one or more legend keys to associate each of the plurality of graphs to an associated diagnostic item or sensor.

14. The diagnostic system of claim 2 including a plurality of scrollable graphical display segments to display the sensor data for the one or more user selectable diagnostic items along a time axis and the plurality of scrollable graphical display segments being scrollable along the time axis to scroll in a first direction to view past data and to scroll in a second direction to view current data.

15. The diagnostic system of claim 14 wherein the plurality of scrollable graphical display segments have different display colors and the different display colors for the plurality of scrollable graphical display segments are selectable via the display options menu.

16. The diagnostic application of claim 2 and comprising a service tool controller and the diagnostic application retrieves the sensor data via communication to a controller area network CAN on the mobile power vehicle through the service tool controller.

17. The diagnostic application of claim 16 wherein the service tool controller converts a communication protocol of the CAN to a communication protocol of the diagnostic application.

3. A computer implementable method of providing diagnostic monitoring of a mobile power vehicle, the method comprising the steps of:

retrieving sensor data from one or more sensors coupled to the mobile power vehicle for one or more diagnostic items;

displaying a maximum sensor reading or a minimum sensor reading retrieved from the one or more sensors coupled to the mobile power vehicle in a display field on an electronic display device;

receiving an input command to display an acceptable maximum or minimum sensor value for the one or more diagnostic items;

retrieving the acceptable maximum or minimum sensor value for the one or more diagnostic items from a data store; and

displaying the acceptable maximum or minimum sensor value for the one or more diagnostic items in the display field of the electronic display device in place of the maximum or minimum sensor reading.

6. The method of claim 3 and further comprising the steps of:

graphically displaying the sensor data for the one or more sensors;

receiving an input to display a numerical value for a select data point on the graphical display; and

displaying the numerical value associated with the select data point on the graphical display.

7. The method of claim 3 and further comprising the steps of:

receiving a display option selection; and

graphically displaying the sensor data using the selected display option.

8. The method of claim 7 and comprising:

displaying a scrollable graphical display including a plurality of line graphs along a time axis of the scrollable graphical display if a first display option is selected; and

displaying a plurality of scrollable graphical displays if a second display option is selected.

9. The method of claim 3 and comprises:

processing input from a pointing device to determine a position of a cursor on the electronic display device; and

retrieving the acceptable maximum or minimum sensor value and displaying the acceptable maximum or minimum sensor value if the cursor is positioned proximate to the display field of the maximum or the minimum sensor reading.

4. A diagnostic system for a mobile power vehicle comprising:

a diagnostic component configured to retrieve sensor data from at least one sensor on a mobile power vehicle for one or more diagnostic items;

a graphical display generator configured to generate a scrollable graphical display segment on an electronic display device to display the sensor data for the one or more diagnostic items along a time axis and the scrollable graphical display segment being scrollable along the time axis to scroll in a first direction to view past data and scrollable in a second direction to view current data; and

a display options menu including a plurality of user selectable display formats including a first display format and a second display format and upon selection of the first display format the graphical display generator generates the scrollable graphical display segment including a plurality of graphs along a common time axis and upon selection of the second display format the graphical display generator generates a plurality of scrollable graphical display segments scrollable along separate time axes.

19. The diagnostic system of claim 4 wherein the diagnostic component retrieves the sensor data via communication to a controller area network CAN on the mobile power vehicle through a service tool controller and the service tool controller converts a communication protocol of the CAN to a communication protocol of the diagnostic component.