CA2506301A1 - Work machine joystick control system - Google Patents

Work machine joystick control system Download PDF

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Publication number
CA2506301A1
CA2506301A1 CA002506301A CA2506301A CA2506301A1 CA 2506301 A1 CA2506301 A1 CA 2506301A1 CA 002506301 A CA002506301 A CA 002506301A CA 2506301 A CA2506301 A CA 2506301A CA 2506301 A1 CA2506301 A1 CA 2506301A1
Authority
CA
Canada
Prior art keywords
work machine
lever
control system
axis
operator control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002506301A
Other languages
French (fr)
Other versions
CA2506301C (en
Inventor
Daniel E. Shearer
Craig B. Kelley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Caterpillar Inc
Original Assignee
Caterpillar Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Caterpillar Inc filed Critical Caterpillar Inc
Publication of CA2506301A1 publication Critical patent/CA2506301A1/en
Application granted granted Critical
Publication of CA2506301C publication Critical patent/CA2506301C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/04—Controlling members for hand actuation by pivoting movement, e.g. levers
    • G05G1/06—Details of their grip parts
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/7663—Graders with the scraper blade mounted under a frame supported by wheels, or the like
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/2004—Control mechanisms, e.g. control levers
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
    • G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
    • G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
    • G05G9/04785—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks the controlling member being the operating part of a switch arrangement
    • G05G9/04788—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks the controlling member being the operating part of a switch arrangement comprising additional control elements
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
    • G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
    • G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
    • G05G2009/04774—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks with additional switches or sensors on the handle
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
    • G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
    • G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
    • G05G2009/04781—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks with additional rotation of the controlling member

Abstract

A control system for a work machine having an articulated joint and a work implement with at least one axis of rotation, has a first lever with a first longitudinal axis. A twist angle of the first lever about the first longitudinal axis is related to an articulation speed of the work machine. The control system also has a second lever having a second longitudinal axis. A twist angle of the second lever about the second longitudinal axis is related to a rotational speed of the work implement about the at least one axis of rotation. A plurality of operator control devices are disposed on the first and second levers.

Claims (10)

1. A control system for a work machine having an articulated joint and a work implement with at least one axis of rotation, the control system comprising:
a first lever having a first longitudinal axis, wherein a twist angle of the first lever about the first longitudinal axis is related to an articulation speed of the work machine;
a second lever having a second longitudinal axis, wherein a twist angle of the second lever about the second longitudinal axis is related to a rotational speed of the work implement about the at least one axis of rotation; and a plurality of operator control devices disposed on the first and second levers.
2. The control system of claim 1, wherein at least one of the first lever and the second lever is configured to tilt about at least one tilt axis, a steering direction of the work machine being related to a tilt angle of the at least one of the first lever and the second lever about the at least one tilt axis.
3. The control system of claim 1, wherein at least one of the plurality of operator control devices is configured to place the articulated joint in a neutral articulation position.
4. The control system of claim 1, wherein the work machine includes a plurality of driven traction devices and a differential gear mechanism that allows the plurality of driven traction devices to rotate at different speeds relative to each other, and at least one of the plurality of operator control devices is configured to selectively lock the differential gear mechanism and to cause the plurality of driven traction devices to rotate at a substantially uniform speed.
5. The control system of claim 1, wherein the work machine includes a transmission having a range of output speed ratios selectable by at least one of the plurality of operator control devices.
6. A work machine comprising:
a steerable traction device;
a driven traction device;
a frame having an articulated joint for articulately connecting the steerable traction device to the driven traction device;
a power source supported by at least one of the frame and the driven traction device;
a transmission operatively connected to the power source and configured to transmit power from the power source to the driven traction device, the transmission having a range of output speed ratios;
a work implement operatively connected to the frame and having at least one axis of rotation; and the control system as in any one of claims 1-3.
7. A method of controlling a work machine, comprising:
twisting a first lever through a first twist angle in one of a clockwise and counterclockwise direction to cause an articulation of an articulated joint of a work machine, such that a portion of the work machine rotates about the articulated joint in the one of a clockwise and counterclockwise direction and at an articulation speed related to the first twist angle; and twisting a second lever a second twist angle in one of a clockwise and counterclockwise direction to cause a rotation of a work implement about a first axis in the same one of a clockwise and counterclockwise direction and at a rotation speed related to the second twist angle, wherein a plurality of operator control devices are disposed on the first and second levers.
8. The method of claim 7, further including manipulating at least one of the plurality of operator control devices to place an articulation joint of the work machine in a neutral articulation position.
9. The method of claim 7, further including manipulating at least one of the plurality of operator control devices to lock a differential gear mechanism of the work machine and to cause all of a plurality of driven traction devices of the work machine connected to the differential gear mechanism to rotate at a substantially uniform speed.
10. The method of claim 7, further including manipulating at least one of the plurality of operator control devices to select an output speed ratio of a transmission of the work machine.
CA2506301A 2004-06-22 2005-05-03 Work machine joystick control system Expired - Fee Related CA2506301C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/872,431 US7497298B2 (en) 2004-06-22 2004-06-22 Machine joystick control system
US10/872,431 2004-06-22

Publications (2)

Publication Number Publication Date
CA2506301A1 true CA2506301A1 (en) 2005-12-22
CA2506301C CA2506301C (en) 2012-10-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA2506301A Expired - Fee Related CA2506301C (en) 2004-06-22 2005-05-03 Work machine joystick control system

Country Status (3)

Country Link
US (1) US7497298B2 (en)
JP (1) JP2006052632A (en)
CA (1) CA2506301C (en)

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Also Published As

Publication number Publication date
US20050279561A1 (en) 2005-12-22
JP2006052632A (en) 2006-02-23
CA2506301C (en) 2012-10-09
US7497298B2 (en) 2009-03-03

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