KR20080015531A - A speed sensor of a two wheel car which uses a hall sensor - Google Patents

A speed sensor of a two wheel car which uses a hall sensor Download PDF

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Publication number
KR20080015531A
KR20080015531A KR1020060076939A KR20060076939A KR20080015531A KR 20080015531 A KR20080015531 A KR 20080015531A KR 1020060076939 A KR1020060076939 A KR 1020060076939A KR 20060076939 A KR20060076939 A KR 20060076939A KR 20080015531 A KR20080015531 A KR 20080015531A
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South Korea
Prior art keywords
speed
sensor
magnet unit
wheel car
hall sensor
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KR1020060076939A
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Korean (ko)
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양권
윤성훈
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덴소풍성전자(주)
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Priority to KR1020060076939A priority Critical patent/KR20080015531A/en
Publication of KR20080015531A publication Critical patent/KR20080015531A/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G01P1/07—Indicating devices, e.g. for remote indication
    • G01P1/08—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G01P1/12—Recording devices
    • G01P1/122—Speed recorders
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/0885—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by magnetostrictive pick-up
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
    • G01R15/202—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices using Hall-effect devices

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

A speed sensor of a two wheel car using a hall sensor is provided to substitute expensive components such as a photo coupler or a photo micro sensor and simplify a structure to reduce the number of assemblies, thereby reducing a cost. A speed sensor of a two wheel car is coupled to a transmission driving gear set for detecting a running speed of the two wheel car and has a flexible cable(11) for transmitting rotation to a speed meter. The speed sensor of the two wheel car includes a disk-shaped magnet unit(12) and a hall sensor(13). The disk-shaped magnet unit rotates by being connected to an end of the flexible cable. N poles and S poles of a permanent magnet are radially arranged alternately and repeatedly in a circumferential direction of the magnet unit. The speed sensor of the two wheel car senses the running speed by detecting polarity change of the disk-shaped magnet unit rotated by having the hall sensor adjacent to an outside of the permanent magnet.

Description

홀 센서를 이용한 2륜 자동차용의 스피드 센서{A speed sensor of a two wheel car which uses a hall sensor}A speed sensor of a two wheel car which uses a hall sensor}

도 1은 종래 2륜 자동차용의 포토커플러를 이용한 스피드 센서의 평면도(a) 및 측단면도(b)1 is a plan view (a) and a side cross-sectional view (b) of a speed sensor using a photocoupler for a conventional two-wheeled vehicle

도 2는 본 발명 홀 센서를 이용한 스피드 센서의 측단면도2 is a side cross-sectional view of a speed sensor using the present Hall sensor

도 3은 본 발명 원판형 마그네트 유니트의 개략적인 평면도Figure 3 is a schematic plan view of the disk magnet unit of the present invention

도 4는 본 발명의 회로도4 is a circuit diagram of the present invention.

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

1. 케이블 2. 베인1.cable 2.vane

3. 공간부 4. 포토커플러3. Space 4. Photo coupler

11. 케이블 12. 원판형 마그네트 유니트11.Cable 12. Disc Magnet Unit

13. 홀 센서 14. 인쇄회로기판13. Hall sensor 14. Printed circuit board

15. 마이콤15. Micom

본 발명은 2륜 자동차용 스피드 센서에 관한 것으로, 보다 상세하게 설명하자면 2륜 자동차의 변속기 회전속도를 인출하는 케이블에 결합되어 회전하는 마그네트의 극성변화를 홀 센서(HALL SENSOR)로 감지하여 주행속도를 검출하는 2륜 자동차용 스피드 센서에 관한 것이다.The present invention relates to a speed sensor for a two-wheeled vehicle, and more specifically, to a traveling speed by detecting a polarity change of a rotating magnet coupled to a cable for extracting a rotational speed of a two-wheeled vehicle with a hall sensor. It relates to a speed sensor for a two-wheeled vehicle for detecting the.

2륜 자동차는 엔진과 변속기가 콤팩트하게 구성되고 설치하는 장소가 협소하여 자동차와 같이 변속기의 구동세트에 스피드 감지센서를 설치하기 어려우므로 변속기의 구동기어세트에 케이블을 연결하고 구동기어세트의 회전을 케이블로 전달하여 2륜 자동차의 전방핸들이 위치하는 부분에 장착된 스피드 메터 내에서 케이블의 회전속도를 감지하여 주행속도를 검출하고 있다.In the two-wheeled vehicle, since the engine and the transmission are compactly constructed and the installation place is narrow, it is difficult to install the speed sensor on the drive set of the transmission like a car. Therefore, the cable is connected to the drive gear set of the transmission and the rotation of the drive gear set is prevented. It transmits the cable and detects the running speed by detecting the rotational speed of the cable in the speed meter mounted on the part of the front wheel of the two-wheeled vehicle.

종래 2륜 자동차용 스피드 센서는 도 1에 도시된 것과 같이 케이블(1)에 의하여 회전하는 베인(2)과 베인의 원주를 따라 4분할 형성된 공간부(3)와 공간부를 통하여 전달되는 광신호를 포토커플러(PHOTO COUPLER)(4)와 하이브리드 I.C(HYBRID I.C)로 검출하거나 포토커플러와 하이브리드 I.C가 일체화된 포토마이크로 센서로 검출하여 스피드로 환산하였다.As shown in FIG. 1, a speed sensor for a two-wheeled vehicle includes a vane 2 rotated by a cable 1 and a space portion 3 formed in four divisions along the circumference of the vane, and an optical signal transmitted through the space portion. It was detected by a photo coupler (PHOTO COUPLER) 4 and a hybrid IC (HYBRID IC) or by a photomicro sensor in which the photocoupler and the hybrid IC were integrated and converted into speed.

그러나 상기와 같은 포토커플러 또는 포토마이크로 센서를 이용하는 스피드 센서는 포토커플러와 하이브리드 I.C 또는 포토마이크로 센서의 가격이 비싸며 가공 및 조립이 복잡하여 스피드 센서의 제조비용을 증가시킨다는 문제점이 있었다.However, the speed sensor using the photocoupler or photomicro sensor as described above has a problem in that the cost of the photocoupler and the hybrid IC or the photomicro sensor is expensive and the processing and assembly are complicated, thereby increasing the manufacturing cost of the speed sensor.

상기한 문제점을 해결하기 위하여 본 발명은 변속기 구동기어세트의 회전을 케이블을 통하여 스피드 메터 내에 구비된 스피드 센서를 작동하게 하되 스피드 센서는 원판형의 마그네트 유니트와 홀 센서로 구성된다.In order to solve the above problems, the present invention allows the rotation of the transmission drive gear set to operate a speed sensor provided in the speed meter through a cable, but the speed sensor is composed of a disc-shaped magnet unit and a hall sensor.

원판형의 마그네트 유니트는 원주를 따라 방사상으로 자석의 N극과 S극을 교호로 반복되게 배열되며 원판형 마그네트 유니트의 외주면에는 근접되게 홀 센서를 배치하여 회전하는 원판형의 마그네트 극성변화를 홀 센서가 감지하여 스피드로 환산하고 이를 스피드 메터의 지침을 통하여 출력하게 한다.The disk-shaped magnet unit is arranged to alternately repeat the N-pole and S-pole of the magnet radially along the circumference, and arranges the Hall sensor close to the outer circumferential surface of the disk-shaped magnet unit to change the polarity of the disk-shaped magnet that rotates. Detects and converts it to speed and outputs it through the speed meter's instructions.

상기한 목적을 위한 본 발명 2륜 자동차용 스피드 메터의 스피드 센서는 케이블에 의하여 회전가능하게 구성된 원판형의 마그네트 유니트와 홀 센서로 구성된다.The speed sensor of the present invention two-wheel speed meter for the above object is composed of a disk-shaped magnet unit and a hall sensor rotatably configured by a cable.

홀 센서는 도체나 반도체에 전류를 흘리고 여기에 수직방향의 자계를 주면 전류와 자계의 수직방향에 전위차가 생기게 되는 현상을 홀 효과라 한다.The Hall sensor refers to a phenomenon in which a potential difference occurs between a current and a magnetic field when a current flows through a conductor or a semiconductor and a vertical magnetic field is applied thereto.

입력단자간에 전류를 흘리고 전류에 직각방향으로 센서면에 자계를 가하면 전류와 자계 모두에 직각인 방향으로 자계와 제어전류의 곱에 비례하는 홀 전압이 발생하므로 홀 효과는 센서의 동작원리로 이용되며 센서는 소형화할 수 있으므로 고정 및 장치에 사용할 수 있고 전압과 자계의 비례성은 양호하다.If the current flows between the input terminals and the magnetic field is applied to the sensor surface in the direction perpendicular to the current, the Hall effect is used as the operating principle of the sensor because the Hall voltage is proportional to the product of the magnetic field and the control current in the direction perpendicular to both the current and the magnetic field. Since the sensor can be miniaturized, it can be used for fixing and device, and the ratio of voltage and magnetic field is good.

원판형 마그네트 유니트는 원주를 일정간격으로 분할하여 방사상으로 자석의 N극과 S극을 교호로 배치하며 극성이 바뀔때마다 홀 센서의 전압도 바뀌므로 전압에 파형이 발생되므로 파형의 변화간격을 검출하면 회전속도를 검출할 수 있다.The disc magnet unit divides the circumference at regular intervals and arranges the N and S poles of the magnet in an alternating manner.The voltage of the Hall sensor also changes every time the polarity is changed. The rotational speed can be detected.

이하에서 본 발명의 바람직한 실시예에 대하여 첨부한 도면을 참조하여 상세하게 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명 홀 센서를 이용한 2륜 자동차용 스피드 센서의 측단면도이고, 도 3은 본 발명 홀 센서를 이용한 2륜 자동차용 스피드 센서의 개략적인 평면도이며, 도 4는 본 발명 홀 센서를 이용한 2륜 자동차용 스피드 센서의 회로도이다.Figure 2 is a side cross-sectional view of a speed sensor for a two-wheeled vehicle using the Hall sensor of the present invention, Figure 3 is a schematic plan view of a speed sensor for a two-wheeled vehicle using the Hall sensor of the present invention, Figure 4 is a Hall sensor A circuit diagram of a speed sensor for a two-wheeled vehicle.

도면에 도시된 바와 같이 본 발명은 2륜 자동차 변속기의 구동기어세트(도면미도시)에 결합되어 변속기의 회전속도에 연동하여 회전하는 플렉시블 케이블(11)과 케이블(11)의 종단부에 결합되어 케이블(11)의 회전에 연동하여 회전하는 원판형 마그네트 유니트(12)와 원판형 마그네트 유니트(12)의 원주면에 근접되게 설치된 홀 센서(13)와 홀 센서(13)에서 검출된 신호를 처리하는 인쇄회로기판(14) 및 마이콤(15)으로 구성된다.As shown in the figure, the present invention is coupled to a drive gear set (not shown) of a two-wheeled vehicle transmission coupled to an end portion of the flexible cable 11 and the cable 11 that rotates in conjunction with the rotational speed of the transmission. Processes the signals detected by the Hall sensor 13 and the Hall sensor 13 provided in close proximity to the circumferential surface of the disc-shaped magnet unit 12 and the disc-shaped magnet unit 12 which rotate in synchronization with the rotation of the cable 11. It consists of a printed circuit board 14 and the microcomputer (15).

원판형 마그네트 유니트(12)는 원주방향에서 방사상으로 분할된 영구자석이 N극과 S극으로 서로 교호로 반복되게 배열되며 원판형 마그네트 유니트(12)의 회전에 의하여 자석의 극성이 변화하는데 따른 전압의 파형변화를 홀 센서(13)에서 검출하고 출력하면 인쇄회로기판(14)에서 전압증폭회로의 트랜지스터에 의해 증폭되고 동시에 외부입력전압이 증폭된 방형파 형태로 출력되면 상기 증폭된 신호는 마이콤(15)에서 스피드로 환산되어 스피드 메터의 지침(도면미도시)을 구동시켜 2륜 자동차의 주행속도를 계기판상에 나타나게 한다.The disk magnet unit 12 is arranged such that the permanent magnets radially divided in the circumferential direction are alternately repeated with the N pole and the S pole, and the voltage of the magnet when the polarity of the magnet changes due to the rotation of the disc magnet unit 12. When the waveform change is detected by the Hall sensor 13 and outputted, the printed circuit board 14 is amplified by a transistor of the voltage amplification circuit and at the same time when the external input voltage is output in the form of an amplified square wave, the amplified signal is a microcomputer ( 15) is converted into speed to drive the speed meter instruction (not shown) so that the driving speed of the two-wheeled vehicle is displayed on the instrument panel.

이상에서 설명한 바와 같이 본 발명은 2륜 자동차의 주행속도를 표시하는 스피드 메터의 스피드 센싱장치로 비교적 저렴한 비용으로 조달할 수 있는 원판형 마그네트 유니트와 홀 센서를 이용할 수 있게 함으로서 포토 커플러나 포토 마이크로 센서와 같은 고가의 부품사용을 대체할 수 있고 구성이 간단하여 조립공수를 감소시킬 수 있어 저렴한 비용으로 스피드 센서를 제공할 수 있게 할 뿐 아니라 스피드 센서의 구성단순화에 따라 고장율을 감소하게 하면서 보다 정확한 스피드를 검출할 수 있게 하는 효과가 있다.As described above, the present invention provides a photocoupler or photomicrosensor by using a disk-type magnet unit and a hall sensor that can be procured at a relatively low cost by using a speed meter of a speed meter indicating a traveling speed of a two-wheeled vehicle. It can replace the use of expensive parts such as this, and its simple configuration can reduce the number of assembly work, so that it is possible to provide a speed sensor at low cost, and to reduce the failure rate according to the configuration of the speed sensor more precise speed There is an effect that makes it possible to detect.

Claims (1)

2륜 자동차의 주행 스피드를 검출하기 위하여 변속기 구동기어세트에 결합되고 회전을 스피드 메터로 전달하는 플렉시블 케이블을 갖춘 스피드 센서에 있어서,A speed sensor with a flexible cable coupled to a transmission drive gear set for detecting the traveling speed of a two-wheeled vehicle and transmitting rotation to a speed meter, 플렉시블 케이블(11)의 단부와 연결되어 회전하는 원판형 마그네트 유니트(12)와, 마그네트 유니트의 원주방향에는 방사상으로 영구자석의 N극과 S극이 교호로 반복되게 배열되고, 영구자석의 바깥쪽에 근접하여 홀 센서(13)가 구비되어 회전하는 원판형 마그네트 유니트의 극성변화를 검출하여 주행속도를 센싱하는 것을 특징으로 하는 홀 센서를 이용한 2륜 자동차용의 스피드 센서.The disc-shaped magnet unit 12 which rotates in connection with the end of the flexible cable 11 and the N-pole and the S-pole of the permanent magnet are alternately arranged alternately in the circumferential direction of the magnet unit, and on the outer side of the permanent magnet. A speed sensor for a two-wheeled vehicle using a hall sensor, characterized in that the hall sensor (13) is provided in proximity to detect the change in polarity of the rotating disk-shaped magnet unit to sense the running speed.
KR1020060076939A 2006-08-16 2006-08-16 A speed sensor of a two wheel car which uses a hall sensor KR20080015531A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105843214A (en) * 2016-04-11 2016-08-10 广东高标电子科技有限公司 Single shaft double wheel balance vehicle safety detection based control method and control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105843214A (en) * 2016-04-11 2016-08-10 广东高标电子科技有限公司 Single shaft double wheel balance vehicle safety detection based control method and control system

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