KR20160075082A - Horizontality control apparatus of working vehicle - Google Patents

Horizontality control apparatus of working vehicle Download PDF

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Publication number
KR20160075082A
KR20160075082A KR1020140184605A KR20140184605A KR20160075082A KR 20160075082 A KR20160075082 A KR 20160075082A KR 1020140184605 A KR1020140184605 A KR 1020140184605A KR 20140184605 A KR20140184605 A KR 20140184605A KR 20160075082 A KR20160075082 A KR 20160075082A
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KR
South Korea
Prior art keywords
vehicle
horizontal control
speed
control valve
sensor
Prior art date
Application number
KR1020140184605A
Other languages
Korean (ko)
Inventor
최철환
Original Assignee
엘에스엠트론 주식회사
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 엘에스엠트론 주식회사 filed Critical 엘에스엠트론 주식회사
Priority to KR1020140184605A priority Critical patent/KR20160075082A/en
Publication of KR20160075082A publication Critical patent/KR20160075082A/en

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B59/00—Devices specially adapted for connection between animals or tractors and agricultural machines or implements
    • A01B59/04—Devices specially adapted for connection between animals or tractors and agricultural machines or implements for machines pulled or pushed by a tractor
    • A01B59/042—Devices specially adapted for connection between animals or tractors and agricultural machines or implements for machines pulled or pushed by a tractor having pulling means arranged on the rear part of the tractor
    • A01B59/043—Devices specially adapted for connection between animals or tractors and agricultural machines or implements for machines pulled or pushed by a tractor having pulling means arranged on the rear part of the tractor supported at three points, e.g. by quick-release couplings
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
    • A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
    • A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
    • A01B63/10—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Zoology (AREA)
  • Lifting Devices For Agricultural Implements (AREA)

Abstract

The present invention relates to a horizontal control apparatus for a vehicle, which controls a flow rate of a horizontal control cylinder through a horizontal control valve according to the speed of the vehicle, thereby controlling the operation speed of the horizontal control cylinder.
To this end, the present invention provides a hydraulic control system comprising: a horizontal control cylinder mounted on at least one lower link that receives hydraulic pressure and operates up and down, connecting a vehicle and a working machine to lift and lower the at least one lower link; A horizontal control valve for supplying a flow rate to the horizontal control cylinder; A tilt sensor installed in the vehicle and detecting a tilt of the vehicle; A vehicle speed sensor for detecting a running speed of the vehicle; And a controller for controlling the operation of the horizontal control valve in accordance with the tilt value of the vehicle applied from the tilt sensor and controlling the opening of the horizontal control valve in accordance with the traveling speed of the vehicle applied from the vehicle speed sensor .
Therefore, according to the present invention, the operating speed of the horizontal control cylinder can be adjusted by adjusting the flow rate supplied to the horizontal control cylinder through the horizontal control valve according to the speed of the vehicle, so that the horizontal operation of the working machine can be made flexible .

Description

[0001] HORIZONTAL CONTROL APPARATUS OF WORKING VEHICLE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal control apparatus for a vehicle and, more particularly, to a horizontal control apparatus for a vehicle which adjusts an operation speed of a horizontal control cylinder by controlling a flow rate supplied to a horizontal control cylinder through a horizontal control valve, .

A work vehicle such as a tractor, a swing machine, a combine, etc. performs work by mounting a separate work machine on the front or rear side. The work machines mounted on the work vehicle always need to be kept horizontal for the stability of the work.

In order to maintain the horizontal position of the working machine, the horizontal control cylinder is operated according to the tilt value of the vehicle sensed by the tilt sensor and the cylinder displacement value sensed by the cylinder displacement sensor to adjust the horizontal angle.

At this time, the speed at which the horizontal control cylinder moves is determined by the flow rate supplied to the horizontal control cylinder. If the supplied flow rate is high, the operation speed of the horizontal control cylinder is increased. If the supplied flow rate is low, the operation speed of the horizontal control cylinder is decreased.

The flow rate supplied to the horizontal control cylinder is supplied through the horizontal control valve. In the prior art, however, the horizontal control valve is constantly opened and the flow rate is supplied only by the amount determined by the horizontal control cylinder. The operating speed is fixed.

Thus, conventionally, since the operating speed of the horizontal control cylinder is fixed, when the vehicle speed is low, the work machine is operated ahead of the desired position, and when the vehicle speed is high, the work machine can not follow it.

In order to solve such a problem, conventionally, the driver sets the horizontal control cylinder to operate sensitively through the sensitivity switch.

However, this method has a cumbersome problem that the driver has to change the sensitivity setting every time.

Korean Utility Model Publication No. 20-1999-42203 (published on December 27, 1999).

SUMMARY OF THE INVENTION It is an object of the present invention to provide a horizontal control device for a vehicle which can control an operation speed of a horizontal control cylinder by controlling a flow rate supplied to a horizontal control cylinder through a horizontal control valve according to the speed of the vehicle, The present invention has been made in view of the above problems.

According to an aspect of the present invention, there is provided a horizontal control apparatus for a vehicle, the hydraulic control apparatus comprising: at least one lower link connected to a vehicle and a working machine, A horizontal control cylinder for lifting and lowering the link; A horizontal control valve for supplying a flow rate to the horizontal control cylinder; A tilt sensor installed in the vehicle and detecting a tilt of the vehicle; A vehicle speed sensor for detecting a running speed of the vehicle; And a controller for controlling the operation of the horizontal control valve in accordance with the tilt value of the vehicle applied from the tilt sensor and controlling the opening of the horizontal control valve in accordance with the traveling speed of the vehicle applied from the vehicle speed sensor .

According to the horizontal control apparatus of the present invention, the operation speed of the horizontal control cylinder can be adjusted by adjusting the flow rate supplied to the horizontal control cylinder through the horizontal control valve according to the speed of the vehicle, .

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing a main portion of a vehicle to which the present invention is applied; Fig.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a horizontal control apparatus for a vehicle.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a vehicle horizontal control apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic view showing a main part of a vehicle to which the present invention is applied, and FIG. 2 is a schematic view showing a configuration of a horizontal control apparatus for a vehicle according to an embodiment of the present invention.

1 and 2, the horizontal control cylinder 10 is connected to at least one lower link 90 that is operated up and down by receiving hydraulic pressure through the horizontal control valve 20, and which connects the vehicle and a working machine (not shown) So that at least one lower link 90 is lifted and lowered.

The horizontal control valve 20 is connected to the horizontal control cylinder 10 via a hydraulic line and supplies the pressure and the flow rate to the horizontal control cylinder 10 so that the opening amount is controlled under the control of the control unit 60, 10).

The horizontal control valve 20 described above can be implemented as a solenoid valve.

The inclination sensor 30 detects the inclination of the vehicle (preferably, the inclination of the vehicle in the left and right directions in the vehicle running direction) and applies a detection signal to the control unit 60.

The cylinder displacement detection sensor 40 is installed in the horizontal control cylinder 10 to sense the displacement of the horizontal control cylinder 10 and to apply a corresponding sensing signal to the control unit 60.

The vehicle speed sensor 50 senses the running speed of the vehicle and applies a sensing signal to the controller 60.

The vehicle speed sensor 50 may be an RPM sensor that detects the rotational speed of the output side of the transmission to know the speed information, a GPS module that receives the GPS signal, acquires GPS information from the received GPS signal, And a GPS speed meter for calculating and outputting the vehicle speed using the received GPS information.

The control unit 60 controls the horizontal control valve 20 to operate the horizontal control cylinder 10 according to the inclination value of the vehicle applied from the inclination sensor 30 and the cylinder displacement value sensed through the cylinder displacement detection sensor 40. [ And controls the opening of the horizontal control valve 20 in accordance with the traveling speed of the vehicle applied from the vehicle speed sensor 50. [

That is, the control unit 60 determines the opening amount of the horizontal control valve 20 according to the traveling speed of the vehicle received from the vehicle speed sensor 50, and controls the opening degree of the horizontal control valve 20 according to the determined opening amount , The opening amount of the horizontal control valve 20 is determined in proportion to the running speed of the vehicle.

Accordingly, if the running speed of the vehicle applied from the vehicle speed sensor 50 is high, the opening amount of the horizontal control valve 20 becomes large, and if the running speed of the vehicle applied from the vehicle speed sensor 50 is low, The opening amount of the valve 20 becomes small.

When the running speed of the vehicle is high and the opening amount of the horizontal control valve 20 is large, the flow rate supplied to the horizontal control cylinder 10 is increased to increase the operating speed of the horizontal control cylinder 10, When the opening amount of the control valve 20 is small, the flow rate supplied to the horizontal control cylinder 10 is reduced and the operation speed of the horizontal control cylinder 10 is slowed down.

The sensitivity setting device 70 receives the setting of the sensitivity of the horizontal control cylinder 10 from the user or another device and receives the setting of the sensitivity of the horizontal control cylinder 10, .

The control unit 60 receives the setting input information for the sensitivity of the horizontal control cylinder 10 from the sensitivity setting device 70 and outputs the reference value of the horizontal control valve 20 at the predetermined reference speed Determine the dosage. The control unit 60 determines the amount of opening of the horizontal control valve 20 in proportion to the running speed of the vehicle, which is applied from the vehicle speed sensor 50, on the basis of the reference opening amount at the determined reference speed.

In Fig. 1, the upper link 80 and the lower link 90 are in the form of a three-point support with a link mounting a work machine to the vehicle.

Hereinafter, the operation of the horizontal control apparatus for a vehicle according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG.

First, the inclination sensor 30 senses the inclination value of the vehicle in real time and applies it to the control unit 60. The control unit 60 controls the horizontal control valve 20 according to the inclination value of the vehicle applied from the inclination sensor 30, And controls the horizontal control cylinder 10 to operate. At this time, the controller 60 adjusts the horizontal angle of the working machine using the cylinder displacement value received from the cylinder displacement detection sensor 40.

As described above, when the horizontal control cylinder 10 is operated by controlling the opening and closing of the horizontal control valve 20 according to the inclination value of the vehicle applied from the inclination sensor 30, the control unit 60 controls the vehicle speed sensor 50 When the running speed of the vehicle applied from the vehicle speed sensor 50 is high, the opening degree of the horizontal control valve 20 is controlled in proportion to the running speed of the vehicle. The operating speed of the horizontal control cylinder 10 is increased by increasing the amount of the fuel supplied to the horizontal control cylinder 10 to increase the amount of fuel supplied to the horizontal control cylinder 10, The amount of opening of the control valve 20 is reduced to reduce the flow rate supplied to the horizontal control cylinder 10 so that the operation speed of the horizontal control cylinder 10 is slowed down.

When the sensitivity setting device 70 is installed, the sensitivity setting device 70 receives a setting of the sensitivity of the desired horizontal control of the user from the user or another device, and the sensitivity setting device 70 sets the sensitivity setting To the control unit (60). The control unit 60 determines the reference sensitivity of the horizontal control cylinder 10 at a predetermined reference speed, that is, the reference opening amount of the horizontal control valve 20, based on the input information received from the sensitivity setting device 70.

When the horizontal control cylinder 20 is operated by controlling the opening and closing of the horizontal control valve 20 according to the inclination value of the vehicle applied from the inclination sensor 30, The amount of opening of the horizontal control valve 20 is controlled in accordance with the traveling speed of the vehicle applied from the vehicle speed sensor 50. The reference opening amount at the reference speed determined based on the sensitivity input information received from the sensitivity setting device 70 is set as a reference Controls the opening amount of the horizontal control valve 20 so as to be proportional to the traveling speed of the vehicle applied from the vehicle speed sensor 50 to control the operating speed of the horizontal control cylinder 10. [

As described above, the horizontal control cylinder 10 can be operated quickly or slowly according to the traveling speed of the vehicle, so that the operation of the working machine can be flexibly operated according to the traveling speed of the vehicle.

The horizontal control device for a vehicle according to the present invention is not limited to the above-described embodiment, but can be variously modified within the scope of the technical idea of the present invention.

10. Horizontal control cylinder, 20. Horizontal control valve,
30. Tilt sensor, 40. Cylinder displacement detection sensor,
50. Vehicle speed sensor, 60. Control section,
70. Sensitivity setting device, 80. Upper link,
90. Lower Link

Claims (5)

A horizontal control cylinder mounted on at least one lower link for receiving the hydraulic pressure and operating up and down, connecting the vehicle and the work machine to lift and lower the at least one lower link;
A horizontal control valve for supplying a flow rate to the horizontal control cylinder;
A tilt sensor installed in the vehicle and detecting a tilt of the vehicle;
A vehicle speed sensor for detecting a running speed of the vehicle; And
And a control unit for controlling the operation of the horizontal control valve in accordance with the inclination value of the vehicle applied from the inclination sensor and controlling the opening degree of the horizontal control valve in accordance with the traveling speed of the vehicle applied from the vehicle speed sensor, Lt; / RTI > The method according to claim 1,
Wherein the vehicle speed sensor includes any one of an RPM sensor that detects the rotational speed on the output side of the transmission and recognizes the speed information, and a GPS speed meter that calculates and outputs the vehicle speed using the GPS information. controller. The method according to claim 1,
Wherein the control unit determines an opening amount of the horizontal control valve according to the traveling speed of the vehicle applied from the vehicle speed sensor and controls the opening degree of the horizontal control valve according to the determined opening amount, And the amount of opening of the horizontal control valve is determined. The method according to claim 1,
And a sensitivity setting device for receiving the setting of the sensitivity of the horizontal control cylinder. 5. The method of claim 4,
Wherein the controller determines a reference opening amount of the horizontal control valve at a predetermined reference speed on the basis of the sensitivity input information received from the sensitivity setting device and determines the reference opening amount of the horizontal control valve based on the reference opening amount at the reference speed, And determines the amount of opening of the horizontal control valve in proportion to the traveling speed of the vehicle applied from the vehicle.

KR1020140184605A 2014-12-19 2014-12-19 Horizontality control apparatus of working vehicle KR20160075082A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180130932A (en) * 2017-05-30 2018-12-10 엘에스엠트론 주식회사 Horizontal control system for agricultural working machine
KR20200098023A (en) * 2019-02-11 2020-08-20 엘에스엠트론 주식회사 Agricultural Vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990042203A (en) 1997-11-26 1999-06-15 전주범 TV broadcasting receiver and method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990042203A (en) 1997-11-26 1999-06-15 전주범 TV broadcasting receiver and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180130932A (en) * 2017-05-30 2018-12-10 엘에스엠트론 주식회사 Horizontal control system for agricultural working machine
KR20200098023A (en) * 2019-02-11 2020-08-20 엘에스엠트론 주식회사 Agricultural Vehicle

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