Operator control station and method for a work machine having more than one function

• US 6,643,577 B1
• Filed: 08/22/2002
• Issued: 11/04/2003
• Est. Priority Date: 08/22/2002
• Status: Expired due to Fees

• Current Assignee: Caterpillar Incorporated
• Original Assignee: Caterpillar Incorporated
• Inventors: Alig, Jeffrey S., Knutson, Darren M., Swick, W. Christopher, Padgett, Clayton L.
• Primary Examiner(s): Marc-Coleman, Marthe Y.
• Application Number:
  US10/225,767
• Time in Patent Office: 439 Days
• Field of Search: 701/50, 172/2, 172/435, 373/48, 318/568.18, 414/680, 414/695.5, 414/697, 414/699, 744/71.XY, 744/93, 180/273, 180/321, 180/315, 180/326, 180/330, 180/331, 180/332, 180/334
• US Class Current: 701/50
• CPC Class Codes: E02F 9/166 movable, tiltable or pivoting, e.g. movable seats, dampening arrangements of cabins seats for vehicles in general B60N2/00
• CPC Class Codes: E02F 9/2012 Setting the functions of the control levers, e.g. changing assigned functions among operations levers, setting functions dependent on the operator or seat orientation
• CPC Class Codes: Y10T 74/20201 Control moves in two planes

Abstract

When operating a work machine having more than one function, there are situations in which an operator may need to simultaneously control both functions. For instance, when a backhoe loader operator would like to perform a maneuver referred to as the “duck walk”, the operator must simultaneously control at least one aspect of a backhoe and one aspect of a loader. A work machine that has an operator control station with at least two controllers, which may be assigned a first mode pattern, a second mode pattern, and a hybrid mode pattern. When the at least two controllers are in the first mode pattern, the at least two controllers are operably coupled to a first set of equipment, such as a loader. When the at least two controllers are in the second mode pattern, the at least two controllers are operably coupled to a second set of equipment, such as a backhoe. When the at least two controllers are in the hybrid mode pattern, the at least two controllers are simultaneously operably coupled to at least a portion of the first set of equipment (loader) and at least a portion of a second set of equipment (backhoe).

Claims

1. A work machine comprising:

a work machine body;

at least two controllers; and

at least one of said two controllers being operably coupled to a first set of equipment attached to said work machine body when said at least two controllers are in a first mode pattern;

at least one of said two controllers being operably coupled to a second set of equipment attached to said work machine body when said at least two controllers are in a second mode pattern; and

said at least two controllers being simultaneously operably coupled to at least a portion of said first set of equipment and to at least a portion of said second set of equipment when said at least two controllers are in a hybrid mode pattern.

2. The work machine of claim 1 wherein the first set of equipment including a loader and the second set of equipment including a backhoe.

3. The work machine of claim 2 wherein said at least two controllers are in communication with an electronic control module.

4. The work machine of claim 3 wherein said at least two controllers include at least one first joystick attached to a first side of an operator control station and at least one second joystick attached to a second side of said operator control station.

5. The work machine of claim 2 wherein said loader includes a pair of arms and a loader bucket and said backhoe includes a boom, a stick, and a backhoe bucket;

when said at least two controllers are in said first mode pattern, said first joystick is operably coupled to said pair of arms and said loader bucket of said loader, and said second joystick is inactive;

when said at least two controllers are in said second mode pattern, at least one of said first joystick and said second joystick is operably coupled to said boom, one of said first joystick and said second joystick is operably coupled to said stick, and one of said first joystick and said second joystick is operably coupled to said backhoe bucket; and

when said at least two controllers are in said hybrid mode pattern, said first joystick is operably coupled to said pair of arms and said loader bucket of said loader, and said second joystick is operably coupled to said boom and said stick of said backhoe.

6. The work machine of claim 5 wherein said operator control station is moveable among a plurality of positions;

and

said at least two controllers include a default mode pattern being said first mode pattern when said operator control station is in a first position;

said at least two controllers include said default mode pattern being said second mode pattern when said operator control station is in a second position; and

said at least two controllers include said default mode pattern being said a backhoe mode when said operator control station is in a third position.

7. The work machine of claim 6 including at least one default mode override switch in communication with said electronic control module;

and

when said default mode override switch is in an activated position and said operator control station is in said first position, said at least two controllers are in said second mode pattern;

when said default mode override switch is in said activated position and said operator control station is in said second position, said at least two controllers are in said hybrid mode pattern; and

when said default mode override switch is in said activated position and said operator control station is in said third position, said at least two controllers are in said hybrid mode pattern.

8. An operator control station, comprising:

at least two controllers;

an electronic control module including a first mode algorithm, a second mode algorithm, and a hybrid mode algorithm;

said hybrid mode algorithm including at least one aspect of said first mode algorithm and at least one aspect of said second mode algorithm and corresponding to a hybrid mode pattern for said at least two controllers;

said first mode algorithm corresponding to a first mode pattern for said at least two controllers; and

said second mode algorithm corresponding to a second mode pattern for said at least two controllers.

9. The operator control station of claim 8 wherein said at least two controllers include at least one first controller attached to a first side of said operator control station and at least one second controller attached to a second side of said operator control station.

10. The operator control station of claim 8 wherein said operator control station being moveable among a plurality of positions;

and

said electronic control module defaults to said first mode algorithm when the operator control station is in a first position, and said electronic control module defaults to said second mode algorithm when the operator control station is in a second position.

11. The operator control station of claim 10 including a mode display panel, an audible cue, and at least one default mode override switch in communication with said electronic control module;

and

when said default mode override switch is in an activated position and the operator control station is in said first position, said electronic control module switches to said second mode algorithm.

12. The operator control station of claim 11 including a third position between said first position and said second position.

13. The operator control station of claim 12 wherein when said at least one default mode override switch is in said activated position and said operator control station is in at least one of said second position and said third position, said electronic control module switches to said hybrid mode algorithm.

14. The operator control station of claim 13 including:

said at least two controllers including at least one first controller attached to a first side of said operator control station and at least one second controller attached to a second side of said operator control station;

said at least two controllers including two joysticks; and

said second mode pattern including at least one of two alternative control patterns.

15. The operator control station of claim 8 wherein said second mode pattern includes at least one of two alternative control patterns.

16. The operator control station of claim 8 wherein said at least two controllers include two joysticks.

17. A method of operating a work machine having at least two functions, comprising the steps of:

controlling a first function, at least in part, by manipulating at least one controller when the work machine is in a first mode;

controlling a second function, at least in part, by manipulating said at least one controller when the work machine in a second mode; and

simultaneously controlling at least one aspect of said first function and at least one aspect of said second function, at least in part, by manipulating said at least one controller when the work machine is in a hybrid mode.

18. The method of claim 17 including a step of enabling said first mode and said second mode by positioning an operator control station in said first position and said second position, respectively;

and

enabling said hybrid mode, at least in part, by manipulating at least one default override switch.

19. The method of claim 17 wherein the step of simultaneously controlling includes a step of controlling at least one aspect of said first function by manipulating at least one first controller on a first side of said operator control station, and controlling at least one aspect of said second function by manipulating at least one second controller on a second side of said operator control station.

20. The method of claim 19 wherein the step of simultaneously controlling includes a step of controlling at least one of a pair of arms and a loader bucket of a loader by manipulating at least one first joystick on said first side of said operator control station, and controlling at least one of a boom and a stick of a backhoe by manipulating at least one second joystick on said second side of said operator control station.