KR20050064840A - Automatic direction lamp control system in dual motor electromotive forklift truck - Google Patents

Automatic direction lamp control system in dual motor electromotive forklift truck Download PDF

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Publication number
KR20050064840A
KR20050064840A KR1020030096443A KR20030096443A KR20050064840A KR 20050064840 A KR20050064840 A KR 20050064840A KR 1020030096443 A KR1020030096443 A KR 1020030096443A KR 20030096443 A KR20030096443 A KR 20030096443A KR 20050064840 A KR20050064840 A KR 20050064840A
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South Korea
Prior art keywords
driving
rotation speed
rotational speed
forklift
detecting
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KR1020030096443A
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Korean (ko)
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이의동
정연길
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두산인프라코어 주식회사
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Priority to KR1020030096443A priority Critical patent/KR20050064840A/en
Publication of KR20050064840A publication Critical patent/KR20050064840A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/0017—Devices integrating an element dedicated to another function
    • B60Q1/0023—Devices integrating an element dedicated to another function the element being a sensor, e.g. distance sensor, camera
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/34—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction
    • B60Q1/346—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction with automatic actuation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/44—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal
    • B60Q1/444—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal with indication of the braking strength or speed changes, e.g. by changing shape or intensity of the indication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/10—Indexing codes relating to particular vehicle conditions
    • B60Q2300/11—Linear movements of the vehicle
    • B60Q2300/112—Vehicle speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/15—Fork lift trucks, Industrial trucks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/20—Direction indicator lights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

듀얼모터 타입 전동지게차의 방향 지시등 자동 제어장치가 개시된다. 제어장치는 좌측바퀴와 우측바퀴 및 좌측바퀴를 구동시키는 제 1구동모터와, 우측바퀴를 구동시키는 제 2구동모터와, 차량의 주행 방향의 전환을 알려주는 좌, 우측 방향 지시등을 구비한다. 그리고 제 1구동모터의 회전속도를 감지하는 제 1회전속도 감지센서와, 제 2구동모터의 회전속도를 감지하는 제 2회전속도 감지센서와, 지게차가 주행중임을 감지하는 주행감지센서을 구비한다, 그리고 주행감지센서로부터 신호가 입력되면, 제 1회전속도 감지센서로부터 입력된 회전속도와 제 2회전속도 감지센서로부터 입력되는 회전속도를 비교 판단하여, 제 1회전속도 감지센서의 회전속도가 제 2회전속도 감지센서의 회전속도보다 크되, 설정된 속도비 이상이면 우측 방향 지시등을 온시키고, 제 2회전속도 감지센서의 회전속도가 제 1회전속도 감지센서의 회전속도보다 크되, 설정된 속도비 이상이면, 좌측 방향 지시등을 온시키는 콘트롤러를 구비한다. 지게차가 좌회전하는가 또는 우회전하는가를 판단한 다음, 판단된 값에 따라 좌측 방향 지시등과 우측 방향 지시등을 자동으로 온/오프 시킴으로써 운전자의 편의를 최대한 제공한다. Disclosed is an automatic control device for a direction indicator of a dual motor type electric forklift. The control device includes a first driving motor for driving the left wheel, the right wheel and the left wheel, a second driving motor for driving the right wheel, and left and right direction indicators for informing the change of the driving direction of the vehicle. And a first rotational speed sensor for detecting a rotational speed of the first driving motor, a second rotational speed sensor for detecting a rotational speed of the second driving motor, and a driving detection sensor for detecting that the forklift is running. When a signal is input from the driving sensor, the rotation speed input from the first rotation speed sensor is compared with the rotation speed input from the second rotation speed sensor, and the rotation speed of the first rotation speed sensor is second. If the rotation speed of the speed sensor is greater than the set speed ratio, the right direction indicator is turned on, and if the rotation speed of the second rotation speed sensor is greater than the rotation speed of the first rotation speed sensor, if the speed exceeds the set speed ratio, the left And a controller for turning on the turn signal. After determining whether the forklift is turning left or right, the left and right direction indicators are automatically turned on and off according to the determined value to provide the maximum convenience for the driver.

Description

듀얼모터 타입 전동지게차의 방향 지시등 자동 제어장치{AUTOMATIC DIRECTION LAMP CONTROL SYSTEM IN DUAL MOTOR ELECTROMOTIVE FORKLIFT TRUCK}AUTOMATIC DIRECTION LAMP CONTROL SYSTEM IN DUAL MOTOR ELECTROMOTIVE FORKLIFT TRUCK}

본 발명은 듀얼모터 타입 전동지게차의 방향 지시등 자동 제어장치에 관한 것으로서, 보다 상세하게는 주행 방향을 전환함에 따라 자동으로 좌, 우측의 방향 지시등을 제어하는 듀얼모터 타입 전동지게차의 방향 지시등 자동 제어장치에 관한 것이다. The present invention relates to an automatic control device for the direction indicator of a dual motor type electric forklift, and more particularly, to automatically control the direction indicator of the left and the right as the driving direction is changed. It is about.

듀얼모터 타입 전동지게차는 두 개의 구동모터를 이용하여 전방의 좌측바퀴와 우측바퀴를 독립적으로 구동하는 것으로, 좌측바퀴와 우측바퀴의 회전속도를 조절함으로써 차량을 주행시키고 조향하도록 구성된다. The dual motor type electric forklift is driven independently of the front left wheel and the right wheel by using two drive motors, and is configured to drive and steer the vehicle by adjusting the rotation speeds of the left and right wheels.

그리고 이러한 듀얼모터 타입 전동지게차(이하, "지게차"라 약칭함)는 주행 방향의 전환을 알려주는 좌, 우측 방향 지시등(이하, "방향 지시등"이라 약칭함)을 갖는다. 방향 지시등은 운전석의 주변에 설치되어 있는 조작레버를 수동으로 조작함으로써 온/오프하도록 구성된다. The dual motor type electric forklift (hereinafter, abbreviated as "forklift") has left and right direction indicators (hereinafter, abbreviated as "direction indicators") informing the change of the driving direction. The turn signal is configured to be turned on / off by manually operating the operation lever provided around the driver's seat.

한편, 방향 지시등은 주행방향을 수시로 전환하는 지게차의 특성상, 방향전환 할 때마다, 조작레버를 수동으로 조작해야하므로 매우 불편한 단점이 있다. 이같은 단점은 운전자가 방향 지시등을 작동시키지 않는 원인이 되며, 따라서 지게차의 방향 전환이 급격하게 이루어 질 때, 운전자 이외의 작업자가 이를 알아차리지 못하고 안전사고가 발생하는 문제점이 있다. On the other hand, the direction indicator is very inconvenient because of the nature of the forklift truck to switch the driving direction from time to time, each time the direction change, the operation lever must be manually operated. Such a disadvantage causes the driver not to operate the direction indicator, so when the forklift direction is suddenly made, there is a problem that a worker other than the driver does not notice this and a safety accident occurs.

따라서, 본 발명은 상기와 같은 문제점을 해결하기 위해 안출된 것으로, 그 목적은 운전자가 지게차의 주행 방향을 전환함에 따라 자동으로 좌, 우측 방향 지시등을 온/오프하도록 하는 듀얼모터 타입 전동지게차의 방향 지시등 자동 제어장치를 제공하는 데 있다. Accordingly, the present invention has been made to solve the above problems, the purpose of the dual motor type electric forklift to automatically turn on / off the left and right direction indicator lights as the driver switches the driving direction of the forklift It is to provide an automatic indicator light control device.

이러한 목적을 달성하기 위한 본 발명의 듀얼모터 타입 전동지게차의 방향 지시등 자동 제어장치는, 좌측바퀴와 우측바퀴 및 상기 좌측바퀴를 구동시키는 제 1구동모터와, 상기 우측바퀴를 구동시키는 제 2구동모터와, 차량의 주행 방향의 전환을 알려주는 좌, 우측 방향 지시등을 구비한다. 그리고 상기 제 1구동모터의 회전속도를 감지하는 제 1회전속도 감지수단와, 상기 제 2구동모터의 회전속도를 감지하는 제 2회전속도 감지수단과, 상기 지게차가 주행중임을 감지하는 주행감지수단 및 상기 주행감지수단으로부터 주행신호가 입력되면, 상기 제 1회전속도 감지수단으로부터 입력된 회전속도와 상기 제 2회전속도 감지수단으로부터 입력되는 회전속도를 비교 판단하여, 상기 제 1회전속도 감지수단의 회전속도가 상기 제 2회전속도 감지수단의 회전속도보다 크되, 설정된 속도비 이상이면 상기 우측 방향 지시등을 온시키고, 상기 제 2회전속도 감지수단의 회전속도가 상기 제 1회전속도 감지수단의 회전속도보다 크되, 설정된 속도비 이상이면, 상기 좌측 방향 지시등을 온시키는 콘트롤러로 구성된다. In order to achieve the above object, the automatic control device for indicating a direction of a dual motor type electric forklift of the present invention includes a first driving motor for driving a left wheel, a right wheel, and the left wheel, and a second driving motor for driving the right wheel. And left and right turn indicators for informing the change of the driving direction of the vehicle. And first rotation speed detection means for detecting a rotation speed of the first driving motor, second rotation speed detection means for detecting a rotation speed of the second driving motor, driving detection means for detecting that the forklift is running, and the When the driving signal is input from the driving detection means, the rotation speed input from the first rotation speed detection means is compared with the rotation speed input from the second rotation speed detection means, and the rotation speed of the first rotation speed detection means is compared. Is greater than the rotational speed of the second rotational speed sensing means, and if the set speed ratio is greater than or equal to the right direction indicator, the rotational speed of the second rotational speed sensing means is greater than the rotational speed of the first rotational speed sensing means. The controller is configured to turn on the left turn indicator when the speed ratio is equal to or greater than the set speed ratio.

지게차가 좌회전하는가 또는 우회전하는가를 판단한 다음, 판단된 값에 따라 좌측 방향 지시등과 우측 방향 지시등을 자동으로 온/오프 시킴으로써 운전자의 편의를 최대한 제공한다. After determining whether the forklift is turning left or right, the left and right direction indicators are automatically turned on and off according to the determined value to provide the maximum convenience for the driver.

이하, 본 발명에 따른 듀얼모터 타입 전동지게차의 방향 지시등 자동 제어장치의 바람직한 실시예를 첨부된 도면에 의거하여 상세하게 설명한다.Hereinafter, a preferred embodiment of the automatic direction indicator light control device of the dual motor type electric forklift according to the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 듀얼모터 타입 전동지게차의 방향 지시등 자동 제어장치의 구성을 나타내는 도면이다. 이를 살펴보면, 본 발명의 제어장치는 지게차 전방의 좌측바퀴(1)를 구동시키는 제 1구동모터(1a)와, 우측바퀴(3)를 구동시키는 제 2구동모터(3a)의 회전속도를 각각 감지하는 제 1회전속도 감지수단(10)과 제 2회전속도 감지수단(20)을 구비한다. 1 is a view showing the configuration of the automatic control system for turning indicator of a dual motor type electric forklift according to the present invention. Looking at this, the control device of the present invention detects the rotational speed of the first driving motor (1a) for driving the left wheel (1) in front of the forklift and the second driving motor (3a) for driving the right wheel (3), respectively The first rotational speed detecting means 10 and the second rotational speed detecting means 20 are provided.

제 1회전속도 감지수단(10)과 제 2회전속도 감지수단(20)은, 예를 들면 로터리 엔코더(Rotary Encoder)와 같은 위치감지센서로서, 제 1구동모터(1a)와 제 2구동모터(3a)의 출력축 주변에 설치된다. The first rotational speed detection means 10 and the second rotational speed detection means 20 are position sensing sensors such as, for example, rotary encoders, and include a first driving motor 1a and a second driving motor ( It is installed around the output shaft of 3a).

이러한 제 1회전속도 감지수단(10)과 제 2회전속도 감지수단(20)은, 도시하지 않은 스티어링 휠을 오른쪽 또는 왼쪽으로 회전시킴에 따라 제 1구동모터(1a)와 제 2구동모터(3a)의 회전속도를 감지하여 신호를 출력한다. The first rotation speed detecting means 10 and the second rotation speed detecting means 20 rotate the steering wheel (not shown) to the right or the left, so that the first driving motor 1a and the second driving motor 3a are rotated. ) Detects the rotation speed and outputs a signal.

여기서, 지게차를 우회전시키고자 스티어링 휠을 오른쪽으로 회전시키면, 제 1구동모터(1a)의 회전속도는 제 2구동모터(3a)의 회전속도보다 빠르게 구동된다. 따라서, 지게차의 우회전시 제 1회전속도 감지수단(10)에 감지된 회전속도는 제 2회전속도 감지수단(20)에 감지된 회전속도 보다 더 높게 나타난다. 한편, 스티어링 휠을 오른쪽으로 더 회전시키면, 제 1구동모터(1a)의 회전속도가 점차 증가되어 제 2구동모터(3a)의 회전속도 보다 월등히 커지게 된다.Here, when the steering wheel is rotated to the right to turn the forklift right, the rotation speed of the first driving motor 1a is driven faster than the rotation speed of the second driving motor 3a. Therefore, the rotational speed detected by the first rotational speed detecting means 10 during the right turn of the forklift appears higher than the rotational speed detected by the second rotational speed detecting means 20. On the other hand, if the steering wheel is further rotated to the right, the rotation speed of the first driving motor 1a is gradually increased to be significantly larger than the rotation speed of the second driving motor 3a.

그리고 지게차를 좌회전시키고자 스티어링 휠을 왼쪽으로 회전시키면, 제 2구동모터(3a)의 회전속도는 제 1구동모터(1a)의 회전속도보다 빠르게 구동된다. 따라서, 지게차의 좌회전시 제 2회전속도 감지수단(20)에 감지된 회전속도는 제 1회전속도 감지수단(10)에 감지된 회전속도 보다 더 높게 나타난다. 한편, 스티어링 휠을 왼쪽으로 더 회전시키면, 제 2구동모터(3a)의 회전속도가 점차 증가되어 제 1구동모터(1a)의 회전속도 보다 월등히 커지게 된다. When the steering wheel is rotated to the left to rotate the forklift to the left, the rotational speed of the second driving motor 3a is driven faster than the rotational speed of the first driving motor 1a. Therefore, the rotational speed detected by the second rotational speed detecting means 20 when the forklift is turned left appears higher than the rotational speed detected by the first rotational speed detecting means 10. On the other hand, if the steering wheel is further rotated to the left, the rotation speed of the second drive motor 3a is gradually increased to be significantly larger than the rotation speed of the first drive motor 1a.

다시, 도 1을 참조하면, 본 발명의 제어장치는, 차량이 주행중임을 감지하는 주행감지수단(30)을 구비한다. 주행감지수단(30)은 도시하지 않은 지게차의 액슬축 또는 변속기에 설치되는 차속센서로서, 지게차가 주행하는 것을 감지하고, 감지된 신호를 출력하는 역할을 한다. 여기서, 주행감지수단(20)으로 가속페달(도시하지 않음)의 조작을 감지하는 감지스위치로 구성해도 무방하다. 감지스위치는 운전자가 가속페달을 밟음에 따라 온(on)되어 지게차가 주행하는 것을 감지한다. Referring back to FIG. 1, the control device of the present invention includes a driving detecting means 30 for detecting that the vehicle is driving. The driving detecting means 30 is a vehicle speed sensor installed in the axle shaft or the transmission of the forklift (not shown), and detects that the forklift travels, and outputs the detected signal. Here, the driving detection means 20 may be configured as a detection switch for detecting the operation of the accelerator pedal (not shown). The sensing switch is turned on as the driver presses the accelerator pedal to detect that the forklift is driving.

그리고 본 발명의 제어장치는, 콘트롤러(40)를 구비한다. 콘트롤러(40)는 마이크로 프로세서를 갖춘 것으로서, 주행감지수단(30)으로부터 주행신호가 입력되면, 제 1회전속도 감지수단(10)으로부터 입력된 회전속도값 및 제 2회전속도 감지수단(20)으로부터 입력되는 회전속도값을 비교 판단하여, 좌측 방향 지시등(5)과 우측 방향 지시등(7)을 제어하는 역할을 한다. The control device of the present invention includes a controller 40. The controller 40 is equipped with a microprocessor, and when a driving signal is input from the driving detecting means 30, the controller 40 receives a rotation speed value input from the first rotating speed detecting means 10 and the second rotating speed detecting means 20. By comparing and determining the input rotation speed value, it serves to control the left turn signal (5) and the right turn signal (7).

상세하게 살펴보면, 상기 콘트롤러(40)는 주행감지수단(30)으로부터 주행신호가 입력되면, 지게차가 현재 주행하고 있다고 판단한다. 그리고 지게차가 현재 주행상태이라고 판단되면, 제 1회전속도 감지수단(10)으로부터 입력된 회전속도값과 제 2회전속도 감지수단(20)으로부터 입력되는 회전속도값을 비교 판단한다. 이때, 제 1회전속도 감지수단(10)의 회전속도값이 제 2회전속도 감지수단(20)의 회전속도값 보다 크되, 그 속도비가 설정된 속도비 이상이 될 때에는 현재 지게차가 우회전한다고 판단하여 우측 방향 지시등(7)을 온(on)시킨다.In detail, the controller 40 determines that the forklift is currently running when the driving signal is input from the driving detecting means 30. When it is determined that the forklift is in the current driving state, the rotation speed value input from the first rotation speed detection means 10 is compared with the rotation speed value input from the second rotation speed detection means 20. At this time, when the rotation speed value of the first rotation speed detection means 10 is greater than the rotation speed value of the second rotation speed detection means 20, and the speed ratio is more than the set speed ratio, it is determined that the current forklift is turning right. Turn on the turn signal (7).

반대로, 지게차가 주행한다고 판단한 상태에서, 제 2회전속도 감지수단(20)으로부터 입력된 회전속도값과 제 2회전속도 감지수단(20)으로부터 입력되는 회전속도값을 비교한다. 이때, 제 2회전속도 감지수단(20)의 회전속도값이 제 1회전속도 감지수단(10)의 회전속도값 보다 크되, 그 속도비가 설정된 속도비 이상이 될 때에는 현재 지게차가 좌회전한다고 판단하여 좌측 방향 지시등(5)을 온(on)시키는 것이다. On the contrary, in the state where it is determined that the forklift is running, the rotation speed value input from the second rotation speed detection means 20 is compared with the rotation speed value input from the second rotation speed detection means 20. At this time, when the rotation speed value of the second rotation speed detection means 20 is greater than the rotation speed value of the first rotation speed detection means 10, and the speed ratio is more than the set speed ratio, it is determined that the current forklift is turning left. Turn on the turn signal (5).

결과적으로, 이러한 콘트롤러(40)는 주행감지수단(30)의 주행신호와, 제 1회전속도 감지수단(10)의 회전속도값 및 제 2회전속도 감지수단(20)의 회전속도값을 비교 판단하여 지게차가 좌회전하는가 또는 우회전하는가를 판단한 다음, 판단된 값에 따라 좌측 방향 지시등(5)과 우측 방향 지시등(7)을 자동으로 온/오프시키는 것이다.As a result, the controller 40 compares the running signal of the driving detecting means 30 with the rotating speed value of the first rotating speed detecting means 10 and the rotating speed value of the second rotating speed detecting means 20. After determining whether the forklift is turning left or right, the left direction indicator 5 and the right direction indicator 7 are automatically turned on / off according to the determined value.

한편, 콘트롤러(40)가 설정된 속도비 이상일 때만, 우측 방향 지시등(7)과 좌측 방향 지시등(5)을 온시키도록 구성한 이유는, 제 1회전속도 감지수단(10)에 감지된 회전속도와 제 2회전속도 감지수단(20)에 감지된 회전속도의 속도비가 아주 작으면, 실질적으로 지게차의 방향 전환이 이루어지는 것이 아니므로, 제 1회전속도 감지수단(10)에 감지된 회전속도와 제 2회전속도 감지수단(20)에 감지된 회전속도의 속도비가 설정된 속도비 이상으로 커진 상태에서, 즉 실질적으로 지게차의 방향이 전환될 때만, 상기 콘트롤러(40)로 하여금 지게차가 방향전환하는 것으로 인식케 하여 우측 방향 지시등(7)과 좌측 방향 지시등(5)을 온시키도록 한 것이다. On the other hand, the reason why the controller 40 is configured to turn on the right direction indicator 7 and the left direction indicator 5 only when the speed ratio is equal to or greater than the set speed ratio is the rotation speed detected by the first rotation speed detection means 10 and the first. If the speed ratio of the rotational speed detected by the second rotational speed detecting means 20 is very small, since the direction of the forklift is not substantially changed, the rotational speed detected by the first rotational speed detecting means 10 and the second rotation are In the state where the speed ratio of the rotation speed detected by the speed detecting means 20 is larger than the set speed ratio, that is, when the direction of the forklift is substantially changed, the controller 40 recognizes that the forklift is changing direction. The right turn signal 7 and the left turn signal 5 are turned on.

이상에서 설명한 바와 같이, 본 발명의 방향 지시등 제동 제어장치에 의하면, 지게차가 좌회전하는가 또는 우회전하는가를 판단한 다음, 판단된 값에 따라 좌측 방향 지시등과 우측 방향 지시등을 자동으로 온/오프 시킴으로써 운전자의 편의를 최대한 제공한다. 또한, 스티어링 휠의 조향에 따라 좌측 방향 지시등과 우측 방향 지시등이 신속하게 제어되므로, 지게차 주위의 작업자에게 지게차의 방향 전환을 신속하게 알려준다. As described above, according to the direction indicator braking control device of the present invention, after determining whether the forklift is turning left or right, and then automatically turns on and off the left direction indicator and the right direction indicator according to the determined value for the driver's convenience. Provide as much as possible. In addition, since the left direction indicator and the right direction indicator are quickly controlled according to the steering of the steering wheel, the operator around the forklift quickly informs the change of the forklift.

이상에서는 본 발명의 바람직한 실시예를 예시적으로 설명하였으나, 본 발명의 범위는 이와 같은 특정 실시예에만 한정되는 것은 아니며, 특허청구범위에 기재된 범주내에서 적절하게 변경 가능한 것이다.Although the preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be appropriately changed within the scope of the claims.

도 1은 본 발명에 따른 듀얼모터 타입 전동지게차의 방향 지시등 자동 제어장치의 구성을 나타내는 도면이다. 1 is a view showing the configuration of the automatic control system for turning indicator of a dual motor type electric forklift according to the present invention.

＊ 도면의 주요부분에 대한 부호의 설명 ＊＊ Explanation of symbols on main part of drawing ＊

1: 좌측바퀴 1a: 제 1구동모터1: left wheel 1a: first driving motor

3: 우측바퀴 3a: 제 2구동모터3: right wheel 3a: second drive motor

5: 좌측 방향 지시등 7: 우측 방향 지시등5: left turn signal 7: right turn signal

10: 제 1회전속도 감지수단 20: 제 2회전속도 감지수단10: first rotational speed detection means 20: second rotational speed detection means

30: 주행감지수단 40: 콘트롤러30: driving detection means 40: controller

Claims (3)

좌측바퀴(1)와 우측바퀴(3) 및 상기 좌측바퀴(1)를 구동시키는 제 1구동모터 (1a)와, 상기 우측바퀴(3)를 구동시키는 제 2구동모터(3a)와, 차량의 주행 방향의 전환을 알려주는 좌, 우측 방향 지시등(5, 7)을 구비하는 듀얼모터 타입 전동지게차의 방향 지시등 자동 제어장치에 있어서, A first driving motor 1a for driving the left wheel 1 and the right wheel 3 and the left wheel 1, a second driving motor 3a for driving the right wheel 3, and a vehicle In the automatic control device for the direction indicator of a dual motor type electric forklift truck having left and right turn indicators 5 and 7 for informing the change of driving direction, 상기 제 1구동모터(1a)의 회전속도를 감지하는 제 1회전속도 감지수단(10);First rotational speed detecting means (10) for detecting a rotational speed of the first driving motor (1a); 상기 제 2구동모터(3a)의 회전속도를 감지하는 제 2회전속도 감지수단(20);Second rotational speed detecting means (20) for detecting a rotational speed of the second driving motor (3a); 상기 지게차가 주행중임을 감지하는 주행감지수단(30); 및 Driving detecting means (30) for detecting that the forklift is driving; And 상기 주행감지수단(30)으로부터 주행신호가 입력되면, 상기 제 1회전속도 감지수단(10)으로부터 입력된 회전속도와 상기 제 2회전속도 감지수단(20)으로부터 입력되는 회전속도를 비교 판단하여, 상기 제 1회전속도 감지수단(10)의 회전속도가 상기 제 2회전속도 감지수단(20)의 회전속도보다 크되, 설정된 속도비 이상이면 상기 우측 방향 지시등(7)을 온시키고, 상기 제 2회전속도 감지수단(20)의 회전속도가 상기 제 1회전속도 감지수단(10)의 회전속도보다 크되, 설정된 속도비 이상이면, 상기 좌측 방향 지시등(5)을 온시키는 콘트롤러;를 포함하는 것을 특징으로 하는 듀얼모터 타입 전동 지게차의 방향 지시등 자동 제어장치. When the driving signal is input from the driving detecting means 30, the rotation speed input from the first rotation speed detecting means 10 and the rotation speed input from the second rotation speed detecting means 20 are compared and judged. If the rotational speed of the first rotational speed detection means 10 is greater than the rotational speed of the second rotational speed detection means 20, but more than a set speed ratio, turn on the right direction indicator (7), the second rotation And a controller for turning on the left direction indicator light 5 when the rotational speed of the speed sensing means 20 is greater than the rotational speed of the first rotational speed sensing means 10 but above a set speed ratio. Automatic direction control device for dual motor type electric forklift truck. 제 1항에 있어서, The method of claim 1, 상기 제 1회전속도 감지수단(10)과 제 2회전속도 감지수단(20)은 로터리 엔코더인 것을 특징으로 하는 듀얼모터 타입 전동 지게차의 방향 지시등 자동 제어장치.The first rotation speed detection means 10 and the second rotation speed detection means 20 is a rotary encoder, characterized in that the automatic control device for the direction of the dual motor type electric forklift. 제 1항에 있어서, The method of claim 1, 상기 주행감지수단(30)은 가속페달의 조작을 감지하는 감지스위치로 구성되는 것을 특징으로 하는 듀얼모터 타입 전동 지게차의 방향 지시등 자동 제어장치.The driving detecting means (30) is automatic control device for the direction indicator light of the dual motor type electric forklift, characterized in that consisting of a sensing switch for detecting the operation of the accelerator pedal.
KR1020030096443A 2003-12-24 2003-12-24 Automatic direction lamp control system in dual motor electromotive forklift truck KR20050064840A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104385980A (en) * 2014-11-29 2015-03-04 江西洪都航空工业集团有限责任公司 Control device for automatic steering lamps
KR20230044730A (en) * 2021-09-27 2023-04-04 한국기술교육대학교 산학협력단 Electric vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104385980A (en) * 2014-11-29 2015-03-04 江西洪都航空工业集团有限责任公司 Control device for automatic steering lamps
KR20230044730A (en) * 2021-09-27 2023-04-04 한국기술교육대학교 산학협력단 Electric vehicle

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