KR950008776B1 - Controller of upper headlight to turning direction - Google Patents

Controller of upper headlight to turning direction Download PDF

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Publication number
KR950008776B1
KR950008776B1 KR1019900021601A KR900021601A KR950008776B1 KR 950008776 B1 KR950008776 B1 KR 950008776B1 KR 1019900021601 A KR1019900021601 A KR 1019900021601A KR 900021601 A KR900021601 A KR 900021601A KR 950008776 B1 KR950008776 B1 KR 950008776B1
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South Korea
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signal
output
headlight
switch
vehicle
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KR1019900021601A
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Korean (ko)
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KR920011819A (en
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현기석
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기아자동차주식회사
이범창
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/06Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
    • B60Q1/08Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

a steering angle sensor for outputting a vehicle turning state signal; an A/D converter for converting an analog signal from the steering angle sensor into a digital signal; a downward headlight switch for lighting a downward headlight; a forward illumination sensor for sensing light of forward vehicle; a comparator for comparing an output signal from the forward illumination sensor with a predetermined reference value to output a compared signal; left and right directional light switches; a flickering signal generator for generating a flickering signal by receiving output signals from the switches; a main processing unit for determining input signals from a plurality of input terminals to output a predetermined level of signals to a plurality of output terminals ; and a plurality of transistors, controlled by the output signals from the main processing unit.

Description

자동차 회전시 회전방향측 상향전조등 자동절환점등장치Automatic turn on and off device for turning headlights

제1도는 본 발명에 따른 전체회로도이다.1 is an overall circuit diagram according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 조타각센서 2 : A/D변환기,1: steering angle sensor 2: A / D converter,

3 : MPU SW1∼SW3 : 스위치,3: MPU SW1 to SW3: switch,

IN, INl, IN2, IN3, IN4 : 입력단 OUTl∼OUT4 : 출력단,IN, INl, IN2, IN3, IN4: Input terminal OUTl ~ OUT4: Output terminal,

3, 4, 5, 6, 8, 9 : 버퍼 TR1∼TR4 : 트랜지스터,3, 4, 5, 6, 8, 9: buffers TR1 to TR4: transistors,

7 : 점멸신호발생부 CdS : 전방조도센서,7: Blink signal generating unit CdS: forward illuminance sensor,

11 : 비교기 F1∼F4 : FET,11: comparators F1 to F4: FET,

LD : 좌측하향등 LU : 좌측상향등,LD: Left Down Light LU: Left Up Light

RD : 우측하향등 RU : 우측상향등,RD: Right Downlight RU: Right Uplight,

L : 좌측방향지시등 R : 우측방향지시등.L: Left turn indicator R: Right turn indicator.

[산업상의 이용분야][Industrial use]

본 발명은 자동차의 방향전환시 회전방향의 전조등을 하향상태에서 상향상태로 전환시켜 줄 수 있도록된 자동차 회전방향측 상향전조등 자동절환점등 장치에 관한 것이다.The present invention relates to an automatic switching light device for turning headlights in the direction of rotation of the vehicle so as to convert the headlights in the rotational direction from the down state to the up state when the vehicle is switched.

[종래의 기술 및 그 문제점][Traditional Technology and Problems]

종래 야간주행시 차량의 직진방향에 대해서는 하향등상태에서 주행을 하여도 충분한 시야를 확보할 수 있었으나, 회전을 하게 되는 경우에는 하향등 상태에서는 회전방향에 대해 충분한 빛의 방사가 이루어지지 않게 되어 회천방향측의 시야를 충분히 확보할 수 없게 된다. 따라서 차량의 회전시 일시적으로 시야확보가 곤란하게 되어 야간주행시 안전운행에 큰 애로사항으로 대두되었었다.Conventionally, when driving at night, a sufficient view can be secured even when driving in a low light state in the straight direction of the vehicle. However, when the vehicle is rotated, sufficient light is not emitted in the direction of rotation in the low light state. It becomes impossible to fully secure the field of view on the side. Therefore, it is difficult to secure visibility temporarily during the rotation of the vehicle, which has been a major problem for safe driving at night.

본 발명은 상기한 점을 감안하여 발명된 것으로, 야간주행시 자동차의 회전방향에 대응하는 전조등을 하향상태에서 상향상태로 전환시켜 회전방향측의 시야를 충분히 확보할 수 있도록 된 자동차 회전시 회전방향측 상향전조등 자동절환점등장치를 제공함에 그 목적이 있다.The present invention has been invented in view of the above-mentioned, the rotation direction side during the car rotation to ensure sufficient visibility of the rotation direction side by turning the headlight corresponding to the rotation direction of the car during the night driving from the downward state to the up state The purpose of the present invention is to provide an automatic headlight switching device for an overhead light.

[발명의 구성][Configuration of Invention]

상기 목적을 닫성하기 위한 본 발명은, 차량의 회전상태에 따른 신호를 출력하는 조타각센서(1)와, 이 조타각센서(1)로부터 출력되는 아날로그신호를 디지탈신호로 변환시키는 A/D변환기(2), 하향전조등을 점등시키는 하향전조등스위치(SW1), 전방차량의 빛을 감지하는 전방조도센서(CdS), 이 전방조도센서(CdS)의 출력신호가 소정 기준치를 비교해서 그 비교된 신호를 출력하는 비교기(11), 좌측 및 우측방향등스위치(SW2,SW3), 이 스위치(SW2,SW3)의 출력신호를 인가받아 점멸신호를 발생시키는 점멸신호 발생부(7), 각 상대에 따른 신호가 입력되는 입력만(IN,INl,IN2,IN3,IN4)을 갖추면서 입력만(IN,IN1,IN2,IN3)으로 입력된 신호를 판단하여 소정 레벨의 신호를 출력단(OUT1,OUT2,OUT3,OUT4)으로 출력시키는 MPU(3), 이 MPU(3)의 소정 레벨의 출력신호에 따라 온·오프제어되는 트랜지스터(TR1∼TR4) 및 FET(F1∼F4)의 온·오프상태에 따라 점등 및 소등되는 좌측하향·상향전조등(LD, LU) 및 우측하향·상향전조등(RD,RU)을 구비하여 구성된 것을 특징으로 한다.The present invention for closing the above object, the steering angle sensor 1 for outputting a signal according to the rotational state of the vehicle, and the A / D converter for converting the analog signal output from the steering angle sensor 1 into a digital signal (2) The downlight switch SW1 for turning on the low beam headlight, the front illuminance sensor CdS for detecting the light of the front vehicle, and the output signal of the front illuminance sensor CdS are compared with a predetermined reference value, and the compared signal Comparator 11 for outputting a signal, left and right turn light switches SW2 and SW3, a flashing signal generator 7 for generating a flashing signal by receiving the output signals of the switches SW2 and SW3, It has the input (IN, INl, IN2, IN3, IN4) to input the signal and judges the signal input to the input only (IN, IN1, IN2, IN3) to output the signal of the predetermined level (OUT1, OUT2, OUT3). MPU 3 to be output to OUT4, and a transistor controlled on and off in accordance with an output signal of a predetermined level of the MPU 3 Configured with left downward and upward headlamps (LD, LU) and right downward and upward headlamps (RD, RU) which are turned on and off in accordance with the on-off states of the transistors TR1 to TR4 and FETs F1 to F4. It features.

(작용)(Action)

상기와 같이 구성된 본 발명은, 하향전조등스위치를 온키고 하향전조등을 점등시킨 상태에서 방향전환을 위해 좌측(또는 우측)방향지시등 위치를 온시킨 다음 핸들 좌측(또는 우측)으로 회전시키면 좌측(또는 우측)전도등이 하향등에서 상향등으로 자동절환점등되고, 방향절환이 완료되어 좌측(또는 우측)방향지시등 스위치가 오프되면, 좌측(또는 우측(전조등이 상향등에서 하향등으로 자동절환점등된다.The present invention configured as described above, the left (or right) turn on the left (or right) indicator light position for the change direction in the state of turning on the low-down headlight switch and then turned to the left (or right) handle (left) When the lamp turns on automatically from the low beam to the high beam and when the direction switch is completed and the left (or right) indicator light is switched off, the left (or the right (the headlight switches from the high beam to the low beam) automatically turns on.

(실시예)(Example)

이하, 예시도면을 참조해서 본 발명에 따른 1실시예를 상세히 설명한다.Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

제1도는 본 발명에 따른 전체회로도를 나타낸 것으로, 먼저, 자동차가 주행시 직진방향으로 주행할 경우, 하향전조등스위치(SW1)를 온상태로 하면, 전원(B+)이 상기 MPU(3)의 입력단(INl)으로 인가된다. 이와 같은 상태에서 MPU(3)의 출력단(OUTl,OUT2,OUT3,OUT4)으로부터는 각각 로우레벨, 하이레벨, 로우레벨, 하이레벨 상태의 신호가 출력되게 된다.FIG. 1 is an overall circuit diagram according to the present invention. First, when the vehicle is traveling in a straight direction when driving, when the downlight switch SW1 is turned on, the power source B + is connected to the input terminal of the MPU 3. INl). In this state, signals of low level, high level, low level and high level are output from the output terminals OUTl, OUT2, OUT3, and OUT4 of the MPU 3, respectively.

따라서 출력단(OUT1)으로부터 출력된 로우레벨 신호는 저항(Rl)과 버퍼(3) 및 저항(R5)을 매개로 트랜지스터(TR1)의 베이스에 인가되며, 상기 트랜지스터(TR1)는 턴오프되어 전원단(V)으로부터의 전원이 저항(R9)을 통해 FET(Fl)의 게이트에 인가되어 상기 FET(F1)를 턴온시키게 된다. 그리고 출력단(OUT2)으로부터 출력된 하이레벨신호는 저항(R2)과 버퍼(4) 및 저항(R6)을 통해 트랜지스터(TR2)의 베이스에 인가되어 상기 트랜지스터(TR2)를 턴오프시키게 된다. 따라서 전원단(V2)으로부터의 전원이 저항(R10)과 트랜지스터(TR2)를 통해 접지되고, FET(F2)의 게이트에는 로우레벨신호가 인가되어 상기 FET(F2)를 턴오프시키게 된다. 이와 같이 상기 FET(F1)가 온됨으로써 전원단(V5)으로부터의 전원이 좌측하향전조등(LD) 및 FET(F1)를 통해 접지되어 좌측 하향전조등이 점등되게 되고, 상기 FET(F2)가 오프됨으로써 좌측상향전조등(UD)은 소등되게 된다. 한편, 우측하향전조등(RD)과 우측상향전조등(UD)의 점등 및 소등은 MPU(3)의 출력단(OUT3,OUT4)의 출력신호에 따라 상기좌측하향전조등(LD)과 좌측상향전조등(UD)의 동작과 동일하므로 그에 대한 상세한 설명은 생략한다.Accordingly, the low level signal output from the output terminal OUT1 is applied to the base of the transistor TR1 through the resistor Rl, the buffer 3, and the resistor R5, and the transistor TR1 is turned off to supply power. Power from V is applied to the gate of FET Fl through resistor R9 to turn on FET F1. The high level signal output from the output terminal OUT2 is applied to the base of the transistor TR2 through the resistor R2, the buffer 4, and the resistor R6 to turn off the transistor TR2. Therefore, the power from the power supply terminal V2 is grounded through the resistor R10 and the transistor TR2, and a low level signal is applied to the gate of the FET F2 to turn off the FET F2. As such, when the FET F1 is turned on, the power supply from the power supply terminal V5 is grounded through the left downward headlight LD and the FET F1 so that the left downward headlight is turned on, and the FET F2 is turned off. The left upward headlight UD is turned off. On the other hand, the lighting of the right lower headlight RD and the right upper headlight UD is turned on or off according to the output signals of the output terminals OUT3 and OUT4 of the MPU 3. Since the operation is the same as the detailed description thereof will be omitted.

상기와 같은 상태에서 좌측방향지시등스위치(SW2)(또는 우측방향지시등스위치(SW3)를 온시키면, 그에 대응되는 신호가 MPU(3)의 입력단(IN3)(또는 입력단(IN4))으로 인가된다. 동시에 좌측방향지시등스위치(SW2)(또는 우측방향지시등스위치(SW3))의 온상태에 따른 신호가 점멸신호발생부(7)에 인가된다. 이 점멸신호발생부(7)는 그에 대응되게 좌측(또는 우측)방향지시등(LD1 또는 RD1)을 점멸시키게 된다.When the left direction indicator switch SW2 (or the right direction indicator switch SW3) is turned on in the above state, a signal corresponding thereto is applied to the input terminal IN3 (or the input terminal IN4) of the MPU 3. At the same time, a signal corresponding to the on state of the left turn indicator switch SW2 (or the right turn indicator switch SW3) is applied to the flashing signal generator 7. The flashing signal generator 7 corresponds to the left ( Or right) the turn indicator (LD1 or RD1) will flash.

상기와 같은 상태, 즉 MPU(3)는 입력만(IN,IN1,IN3,IN4)으로 인가되는 각 신호의 상태를 판단하게된다. 여기서 운전자 좌회전을 하기 위해 좌측방향지시등스위치(SW2)를 온시킨후, 핸들을 좌측으로 틀었을 경우를 가정하면, 먼저, 조타각센서(1)로부터 좌회전방향에 대응하는 아날로그신호가 A/D변환기(2)에 인가되고, 이 A/D변환기(2)에서는 상기 회전방향에 대응하는 데이터값을 MPU(3)에 인가하게 된다. 이때 출력단(OUT1,OUT2,OUT3,OUT4)으로부터는 하이레벨, 로우레벨, 하이레벨 상태의 신호가 출력되어 자동차의 회전방향, 즉 좌측상향전조등(UD)이 점등되고 비회전방향(우측방향)에 대해서는 우측하향전조등(RD)이 점등되어 회전방향에 대한 층분한 시야를 확보할 수 있게 된다.As described above, that is, the MPU 3 determines the state of each signal applied to the inputs IN, IN1, IN3, and IN4 only. Here, assuming that the steering wheel is turned to the left after turning the left direction indicator light switch SW2 to turn left by the driver, the analog signal corresponding to the left turning direction from the steering angle sensor 1 is an A / D converter. (2), the A / D converter 2 applies the data value corresponding to the rotation direction to the MPU 3. At this time, high level, low level, and high level signals are output from the output terminals OUT1, OUT2, OUT3, and OUT4 so that the rotation direction of the vehicle, that is, the left upward headlight UD is turned on, and the non-rotation direction (right direction) is output. In this case, the right downward headlight RD is turned on, so that a clear view of the rotation direction can be obtained.

한편, 우측방향지시등스위치(SW3)가 온된 상태에서는 상기와는 반대로 출력단(OUT1,OUT2,OUT3,OUT4)으로부터 로우레벨, 하이레벨, 하이레벨, 로우레벨 상태의 신호가 출력되어 회전방향의 전조등, 즉 우측상향전조등(RU)이 점등되게 된다. 이와 같은 상태에서 방향지시등스위치(SW2 또는 SW3)가 오프되면, 최초 직진 주행시의 상태와 마찬가지로 하향전조등(LD,RD)만이 점등되게 된다.On the other hand, when the right direction indicator light switch SW3 is turned on, signals of low level, high level, high level, and low level are output from the output terminals OUT1, OUT2, OUT3, and OUT4, in contrast to the above, and the headlight of the rotation direction, That is, the right upward headlamp RU is turned on. When the turn indicator switch SW2 or SW3 is turned off in this state, only the downlights LD and RD light up as in the state of the first straight run.

한편, 전방조도센서(Cds)에 빛이 인가되는 상태, 즉 차량전방으로부터 다른 차량의 빛이 인가되면, 전방조도센서(Cds)로부터 출력되는 신호가 비교기(11)의 비반전단자에 인가되고, 이 비반전단자에 인가된 신호는 소정의 기준치가 인가되는 반전단자의 신호와 비교되어 하이레벨상태의 신호를 MPU(3)의 입력단(IN2)에 인가시키게 된다. 이와 같은 신호가 인가되면, MPU(3)는 그 상태를 판단하여 방향지시등스위치(SW2,SW3)의 온상태에서 무관하게 전조등을 제어하여 항상 하향전조등(LD,RD)만을 점등시키게 된다.On the other hand, when light is applied to the front illuminance sensor Cds, that is, when the light of another vehicle is applied from the front of the vehicle, a signal output from the front illuminance sensor Cds is applied to the non-inverting terminal of the comparator 11, The signal applied to the non-inverting terminal is compared with the signal of the inverting terminal to which a predetermined reference value is applied to apply the high level signal to the input terminal IN2 of the MPU 3. When such a signal is applied, the MPU 3 determines the state and controls the headlight irrespective of whether the turn indicator switches SW2 and SW3 are in the on state so that only the downlights LD and RD always light up.

[발명의 효과][Effects of the Invention]

이상 설명한 바와 같이 본 발명에 의하면, 자동차의 방향전환시 전환방향의 전조등을 하향상태에서 상향상태로 절환시킴으로써 야간주행시 충분한 시야을 확보할 수 있게 된다.As described above, according to the present invention, by switching the headlights of the switching direction from the down state to the up state when the direction of the vehicle is changed, it is possible to ensure sufficient visibility during the night driving.

Claims (1)

차량의 회전상태에 따른 신호를 출력하는 조타각센서(1)와, 이 조타각센서(1)로부터 출력되는 아날로그신호를 디지탈신호로 변환시키는 A/D변환기(2), 하향전조등을 점등시키는 하향전조등스위치(SW1), 전방차량의 빛을 감지하는 전방조도센서(Cds), 이 전방조도센서(Cds)의 출력신호와 소정 기준치를 비교해서 그 비교된 신호를 출력하는 비교기(11), 좌측 및 우측방향등스위치(SW2,SW3), 이 스위치(SW2,SW3)의 출력신호를 인가받아 점멸신호를 발생시키는 점별신호발생부(7), 각 상태에 따른 신호가 입력되는 입력단(IN,IN1,IN2,IN3,IN4)을 갖추면서 입력단(IN,IN1,IN2,IN3)으로 입력된 신호를 판단하여 소정 레벨의 신호를 출력단(OUT1,OUT2,OUT3,OUT4)으로 출력시키는 MPU(3), 이 MPU(3)의 소정 레벨의 출력신호에 따라 온·오프제어되는 트랜지스터(TR1∼TR4) 및 FET(F1∼F4)의 온·오프상태에 따라 점등 및 소등되는 좌측하향·상향전조등(LD,LJ) 및 우측하향·상향전조등(RD,RU)을 구비하여 구성된 것을 특징으로 하는 자동차 회전시 회전방향측 상향전조등 자동절환점등장치.A steering angle sensor 1 for outputting a signal according to the rotational state of the vehicle, an A / D converter 2 for converting an analog signal output from the steering angle sensor 1 into a digital signal, and a downlight for turning on a headlight. Headlight switch SW1, front illuminance sensor Cds for detecting light of the front vehicle, comparator 11 for comparing the output signal of the front illuminance sensor Cds with a predetermined reference value and outputting the compared signal, left and Right turn light switch (SW2, SW3), the output signal of the switch (SW2, SW3) is applied to the point-by-point signal generator 7 for generating a flashing signal, input terminals (IN, IN1, MPU (3) having IN2, IN3, IN4 and judging the signal input to the input terminals (IN, IN1, IN2, IN3) and outputting a predetermined level signal to the output terminals (OUT1, OUT2, OUT3, OUT4), On and off phases of the transistors TR1 to TR4 and FETs F1 to F4 controlled on and off in accordance with the output signal of the predetermined level of the MPU 3. The lighting on and off the left-down beam is along (LD, LJ) and the right-down beam (RD, RU) car rotation during the rotation direction side beam automatically switching lighting devices, characterized in that configured by comprising a.
KR1019900021601A 1990-12-24 1990-12-24 Controller of upper headlight to turning direction KR950008776B1 (en)

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