KR0138665B1 - Brake lamp control circuit of a car - Google Patents

Brake lamp control circuit of a car

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Publication number
KR0138665B1
KR0138665B1 KR1019950056069A KR19950056069A KR0138665B1 KR 0138665 B1 KR0138665 B1 KR 0138665B1 KR 1019950056069 A KR1019950056069 A KR 1019950056069A KR 19950056069 A KR19950056069 A KR 19950056069A KR 0138665 B1 KR0138665 B1 KR 0138665B1
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KR
South Korea
Prior art keywords
controller
vehicle
signal
output
input terminal
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Application number
KR1019950056069A
Other languages
Korean (ko)
Other versions
KR970037580A (en
Inventor
장지덕
Original Assignee
김태구
대우자동차주식회사
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Application filed by 김태구, 대우자동차주식회사 filed Critical 김태구
Priority to KR1019950056069A priority Critical patent/KR0138665B1/en
Publication of KR970037580A publication Critical patent/KR970037580A/en
Application granted granted Critical
Publication of KR0138665B1 publication Critical patent/KR0138665B1/en

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Classifications

    • 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
    • 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
    • B60Q1/2603—Attenuation of the light according to ambient luminiosity, e.g. for braking or direction indicating lamps
    • 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
    • B60Q1/441—Electric switches operable by the driver's pedals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/30—Sensors
    • B60Y2400/303—Speed sensors

Abstract

본 발명은 자동차의 제동시 점등되는 제동등의 점멸주기를 주행하던 속도에 따라 가변되고 그 밝기를 주변의 조도에 따라 변화되도록 한 자동차의 제동등 제어회로에 관한 것이다.The present invention relates to a braking lamp control circuit of a vehicle which is changed according to the speed at which the flashing cycle of the braking lamp is turned on when the vehicle is being braked and whose brightness is changed according to the ambient illumination.

본 발명에 따르면, 차속신호와 조도신호에 따라 제어하여 가변되는 출력전압을 단속하여 주기를 조절하는 콘트롤러와, 상기 콘트롤러의 입력단에 전기적으로 결합되며 주행속도에 따라 변동되는 주기의 펄스로 차속신호를 출력하는 차속센서와, 상기 콘트롤러의 입력단으로 접속되며 차체 외부면에 설치되어 주변의 조도에 따라 가변되는 전기적신호를 출력하는 광도전소자와, 상기 콘트롤러의 입력단으로 접속되며 브레이크페달에 연동되어 전기적신호를 출력하는 제동등스위치와, 상기 콘트롤러의 출력단의 전압 및 단속주기에 따라 점등되어지는 광도 및 단속 주기가 각각 변동되는 제동등으로 구성된 것을 특징으로 한 자동차의 제동등 제어회로가 제공된다.According to the present invention, a controller for controlling a period by controlling a variable output voltage by controlling according to a vehicle speed signal and an illuminance signal, and electrically coupled to an input terminal of the controller and generating a vehicle speed signal with a pulse of a period varying according to a traveling speed. A photoconductive element that is connected to the vehicle speed sensor to be output, is connected to the input terminal of the controller and is installed on the outer surface of the vehicle, and outputs an electrical signal that varies according to the ambient illuminance, and is connected to the input terminal of the controller and is linked to the brake pedal and is an electrical signal There is provided a brake light control circuit for a vehicle, comprising a brake light switch for outputting a braking lamp, the brightness and the interruption period of which are turned on according to the voltage and the interruption period of the output terminal of the controller, respectively.

Description

자동차의 제동등 제어회로Brake light control circuit

제1도는 본 발명의 회로도.1 is a circuit diagram of the present invention.

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

SW : 제동등스위치 CDS : 광도전소자SW: Brake light switch CDS: Photoconductive element

SPS : 차속센서 LAMP : 제동등SPS: Vehicle speed sensor LAMP: Braking light

R : 분압용 저항 VR : 가변저항R: Voltage divider VR: Variable resistor

FF1, FF2 : 플립플롭 100 : 콘트롤러FF1, FF2: Flip-flop 100: Controller

110 : 아나로그 승산회로 120 : 분주회로110: analog multiplication circuit 120: frequency divider circuit

130 : 단속용 스위치소자 140 : 증폭회로130: intermittent switch element 140: amplification circuit

본 발명은 자동차의 제동시 점등되는 제동등의 점멸주기를 주행하던 속도에 따라 가변되고 그 밝기를 주변의 조도에 따라 변화되도록 한 자동차의 제동등 제어회로에 관한 것이다.The present invention relates to a braking lamp control circuit of a vehicle which is changed according to the speed at which the flashing cycle of the braking lamp is turned on when the vehicle is being braked and whose brightness is changed according to the ambient illumination.

자동차의 제동등은 적색의 투광렌즈를 통해 점등된 램프의 빛을 외부로 투사시켜 후방차량의 운전자에게 명료한 제동신호를 전달하는 것으로, 브레이크페달을 밝았을 때 연동되어 스위치온되는 브레이크스위치에 의해서 배터리의 전원을 공급받아 지속적인 점등을 하게 된다.The brake light of the car transmits a clear braking signal to the driver of the rear vehicle by projecting the light of the lamp that is lit through the red floodlight lens to the outside, and the brake switch is switched on when the brake pedal is bright. It will be powered on continuously.

이와 같이 지속적인 점등상태로 작동되는 제동등은 조명등과 같은 색상으로 점등되도록 단지 밝기만으로 식별하여야 하므로 원거리에서는 그 식별이 용이하지 않다. 또한, 주간의 점등시에도 제동등을 감싸는 투광렌즈에 먼지가 덮이거나 태양광이 직사되어 반사될 경우에는 그 높은 조도로 인하여 식별이 용이하지 않게 된다.As described above, the brake lights operated in a continuous lighting state need to be identified only by the brightness so that they are lit in the same color as the lighting lamps, and thus the identification of the brake lights is not easy at a long distance. In addition, when the daylight is turned on, when the dust is covered in the light-transmitting lens surrounding the brake light or the sunlight is reflected by direct sunlight, it is not easy to identify due to its high illumination.

전술한 바와 같은 이유로 전원이 연결되는 브레이크스위치와 제동등과의 사이에 발진회로를 접속하여 브레이크를 밟을때마다 제동등이 일정한 주기로 반복점멸되도록 하기도 한다.For the same reason as described above, an oscillation circuit may be connected between a brake switch to which a power supply is connected and a brake lamp so that the brake lamp may be repeatedly flickered at regular intervals when the brake is applied.

그런데, 상기한 바와 같은 종래의 제동등은 광도의 조절과 차량의 주행속도에 따라 점멸주기를 변화시킬 수 없기 때문에 제동거리가 짧은 저속주행상태 및 제동거리가 같은 고속주행상태를 구분할 수 없어 특히, 야간의 고속주행중 제동시에 후방의 달려오는 운전자로 하여금 오판하여 사고를 유발시키기 쉬운 문제점이 있었다.However, the conventional braking lamp as described above cannot change the flashing period according to the control of the brightness and the driving speed of the vehicle, so it is not possible to distinguish between a low-speed driving state having a short braking distance and a high-speed driving state having the same braking distance, in particular, at night. There was a problem that the driver who comes to the rear at the time of braking during the high speed driving misjudged and caused an accident.

본 발명은 이러한 문제점을 감안하여 제안된 것으로써, 주행속도에 따라 제동등의 점멸주기가 변동되어 후방차량의 운전자로 하여금 주행속도 및 제동상태를 쉽게 구분하여 인식할 수 있도록 하여 안전운전을 도모하고, 아울러 주변의 조도에 따라 제동등의 밝기가 변동되어 후방운전자의 시각을 피로하지 않게 하는 자동차의 제동등 제어회로를 제공하려는 것이다.The present invention has been proposed in view of the above problems, and the blinking period of the braking light is varied according to the driving speed, so that the driver of the rear vehicle can easily recognize the driving speed and the braking state to promote safe driving. In addition, the brightness of the brake light is changed according to the ambient light to provide a brake light control circuit of the vehicle that does not fatigue the driver's vision.

전술한 목적을 달성하기 위한 본 발명에 따르면, 차속신호와 조도신호에 따라 제어하여 가변되는 출력전압을 단속하여 출력주기를 조절하는 콘트롤러와, 상기 콘트롤러의 입력단에 전기적으로 결합되며 주행속도에 따라 변동되는 주기의 펄스로 차속신호를 출력하는 차속센서와, 상기 콘트롤러의 입력단으로 접속되며 차체에 설치되어 주변의 조도에 따라 가변되는 전기적신호를 출력하는 광도전소자와, 상기 콘트롤러의 입력단으로 접속되며 브레이크페달에 연동되어 전기적신호를 출력하는 제동등스위치와, 상기 콘트롤러의 출력단의 전압 및 단속주기에 따라 점등되어지는 광도 및 단속주기가 각각 변동되는 제동등으로 구성된 것을 특징으로 하는 자동차의 제동등 제어회로가 제공된다.According to the present invention for achieving the above object, a controller for controlling the output period by controlling the output voltage is controlled by controlling according to the vehicle speed signal and the illuminance signal, and electrically coupled to the input terminal of the controller and fluctuates according to the traveling speed A vehicle speed sensor for outputting a vehicle speed signal with a pulse of a cycle, a photoconductive element connected to the input terminal of the controller and installed in the vehicle body and outputting an electrical signal that varies according to the ambient illumination, and a brake connected to the input terminal of the controller A brake light control circuit for a vehicle, comprising a brake light switch interlocked with a pedal and outputting an electrical signal, and a brake light varying in intensity and interruption period, which are turned on according to the voltage and interruption period of the output terminal of the controller, are provided. .

이하, 본 발명을 바람직한 실시예를 설명한다.Hereinafter, preferred embodiments of the present invention will be described.

제1도를 참조하면, 운전자에 의해 조작되는 브레이크페달에 연동되어 전기적신호를 출력하는 제동등스위치(SW) 및 차체 외부면에 설치되어 주변의 조도에 따라 저항값이 변동되어 분압용 저항(R)과의 접속된 점의 전압이 가변되는 광도전소자(CDS)의 후단은 콘트롤러(100)를 이루는 아나로그 승산회로(110)의 입력단에 접속되며, 상기 승산회로(110)의 출력측은 단속용 스위치소자(130)의 입력측에 연결된다.Referring to FIG. 1, a brake lamp switch SW which is linked to a brake pedal operated by a driver and outputs an electrical signal, and is installed on an outer surface of a vehicle body so that a resistance value is changed according to ambient illuminance so that a partial pressure resistor R is obtained. The rear end of the photoconductive device (CDS) whose voltage of the connected point is variable is connected to the input terminal of the analog multiplication circuit 110 forming the controller 100, and the output side of the multiplication circuit 110 is an intermittent switch. It is connected to the input side of the element 130.

또한, 자동차의 주행속도에 따라 주기가 변동되는 펄스신호를 출력하는 차속센서(SPS)의 출력측은 콘트롤러(100)의 분주회로(120)를 이루는 두 개의 T형 플립플롭(FF1), (FF2)의 클럭단자(T)에 접속되고, 그 출력측은 상기 단속용 스위치소자(130)의 접속제어단자에 접속되며, 단속용 스위치소자(130)의 출력측은 증폭회로(140)의 입력측에 접속되고, 증폭회로(140)의 출력측, 즉, 콘트롤러(100)의 출력측은 제동등(LAMP)에 연결된다.In addition, the output side of the vehicle speed sensor SPS, which outputs a pulse signal whose period varies depending on the driving speed of the vehicle, includes two T-type flip-flops FF1 and FF2 constituting the division circuit 120 of the controller 100. Is connected to the clock terminal T of the output terminal thereof, and the output side thereof is connected to the connection control terminal of the intermittent switch element 130, and the output side of the intermittent switch element 130 is connected to the input side of the amplifying circuit 140, The output side of the amplifying circuit 140, that is, the output side of the controller 100 is connected to the brake lamp LAMP.

이러한, 상기 콘트롤러(100)에는 게인조정단자를 구비시킬 수도 있어서 그에 연결시킨 가변저항(VR)에 의해 입력감도와 출력정도를 조절할 수 있도록 구성된다.The controller 100 may be provided with a gain adjusting terminal, and is configured to adjust the input sensitivity and the output degree by the variable resistor VR connected thereto.

이와 같이 구성된 본 발명을 설명한다.The present invention configured as described above will be described.

먼저, 제동등(LAMP)의 광도를 조절하는 작동을 설명하면, 야간에는 주변의 조도가 감소하므로, 저항값이 증가하는 광도전소자(CDS)와 저항과의 접속점의 전위는 낮아지게 된다. 이와 같이, 낮아진 전압의 전류가 아나로그 승산회로(110)의 입력측의 Y단자로 입력되고, 제동등스위치(SW)가 스위치온되어 전원전압이 압력측의 X단자로 입력되면, 상기 승산회로(110)의 출력단자Q의 전압은 낮아지게 된다.First, when the operation of adjusting the brightness of the brake lamp LAMP is described, since the ambient illuminance decreases at night, the potential of the connection point between the photoconductive element CDS and the resistance, which increases in resistance, is lowered. In this way, when the current of the lowered voltage is input to the Y terminal of the input side of the analog multiplication circuit 110, the brake light switch SW is switched on and the power supply voltage is input to the X terminal of the pressure side, the multiplication circuit 110 is performed. The output terminal Q's voltage decreases.

이는 통상적인 승산회로(110)의 특성에 의한 것이며 예를들면, 승산회로(110)의 입력측의 X단자로 입력되는 전압이 V1, Y단자로 입력되는 전압이 V2이라 하면 그 출력전압은 V1와 V2의 곱을 증폭계수로 나눈 값이 된다.This is due to the characteristics of the general multiplication circuit 110. For example, if the voltage input to the X terminal of the input side of the multiplication circuit 110 is V1, and the voltage input to the Y terminal is V2, the output voltage is V1. The product of V2 divided by the amplification factor.

이러한 특성에 의하여 본 발명의 아나로그 승산회로(110)는 증폭계수에 따른 하한한계가 설정되며, 주간에는 높은 전압의 전류를, 야간에는 낮은 전압의 전류를 출력할 수 있게 된다. 이에따라, 상기 승산회로(110)의 출력전류는 단속용 스위치소자(130)를 거쳐 증폭회로(140)로 공급되며 제동등(LAMP)에서 소비되는 전력을 변동시킬 수 있게 되어 제동등(LAMP)의 광도를 주위의 조도에 따라 자동으로 조절하게 된다.Due to this characteristic, the analog multiplication circuit 110 of the present invention sets a lower limit according to an amplification coefficient, and enables output of a high voltage current during the day and a low voltage current at night. Accordingly, the output current of the multiplication circuit 110 is supplied to the amplifying circuit 140 through the intermittent switch element 130 and can change the power consumed in the brake lamp LAMP to improve the brightness of the brake lamp LAMP. It will automatically adjust to the ambient light.

그리고, 제동등(LAMP)의 단속을 조절하는 작동을 설명하면, 차량의 고속주행시에는 차속센서(SPS)에서 짧은 주기의 펄스신호가 출력되는데, 본 발명은 이러한 주기로 제동등(LAMP)을 점등시키면 그 점멸상태가 너무 빠르게 되어 눈으로 확인이 어렵게 되므로, 분주회로(120)를 따라 통해서 주기가 길어지도록 하였다.In addition, the operation of controlling the interruption of the brake lamp LAMP will be described. A pulse signal of a short cycle is output from the vehicle speed sensor SPS during high-speed driving of the vehicle, and the present invention flashes the lamp when the brake lamp LAMP is turned on in such a cycle. Since the state becomes so fast that it is difficult to visually check, the cycle is lengthened through the dispensing circuit 120.

두 개의 플립플롭(FF1), (FF2)이 연속결합된 분주회로(120)의 출력단자(Q)에서는 4배로 주기가 길어진 펄스신호가 출력되며, 그 펄스신호는 단속용 스위치소자(130)의 접속제어단자로 입력되어 상기 스위치소자(130)의 입력단자와 출력단자의 접속상태를 단속하게 된다.In the output terminal Q of the divided circuit 120 in which two flip-flops FF1 and FF2 are continuously coupled, a pulse signal having a period four times longer is output, and the pulse signal of the intermittent switch element 130 It is input to the connection control terminal to control the connection state of the input terminal and the output terminal of the switch element 130.

따라서, 제동등(LAMP)로 인가되는 전류와 그 점멸주기는 변동하게 되는 것이다.Therefore, the current applied to the brake lamp LAMP and its flashing period vary.

전술한 바와 같이 작동되는 본 발명은 주행속도에 따라 제동등의 점멸주기가 변동되고 주변의 조도에 따라 제동등의 밝기가 변동되어 전반적인 제동상태를 후방의 운전자에게 명확히 전달할 수 있으며 아울러 근접한 후방운전자의 시각적 피로를 경감시키는 효과가 있는 것이다.According to the present invention operated as described above, the flashing period of the braking light is changed according to the driving speed and the brightness of the braking light is changed according to the ambient illumination, so that the overall braking state can be clearly transmitted to the driver at the rear, and the visual fatigue of the rear driver is also close. It is effective to alleviate.

Claims (2)

차속신호와 조도신호에 따라 제어하여 가변되는 출력전압을 단속하여 출력주기를 조절하는 콘트롤러(100)와, 상기 콘트롤러(100)의 입력단에 전기적으로 결합되며 주행속도에 따라 변동되는 주기의 펄스로 차속신호를 출력하는 차속센서(SPS)와, 상기 콘트롤러(100)의 입력단으로 접속되며 차체 외부면에 설치되어 주변의 조도에 따라 가변되는 전기적신호를 출력하는 광도전소자(CDS)와, 상기 콘트롤러(100)의 입력단으로 접속되며 브레이크페달에 연동되어 전기적신호를 출력하는 제동등스위치(SW)와, 상기 콘트롤러(100)의 출력단의 전압 및단속주기에 따라 점등되어지는 광도 및 단속주기가 각각 변동되는 제동등(LAMP)로 구성된 것을 특징으로 한 자동차의 제동등 제어회로.The controller 100 is controlled according to the vehicle speed signal and the illuminance signal to regulate the output period by controlling the output voltage, and the vehicle speed is electrically coupled to the input terminal of the controller 100 and is pulsed at a cycle that varies according to the traveling speed. A vehicle speed sensor (SPS) for outputting a signal, a photoconductive element (CDS) connected to an input terminal of the controller 100 and installed on an outer surface of the vehicle body and outputting an electrical signal that varies according to ambient illumination, and the controller ( A brake light switch (SW) connected to the input terminal of the controller 100 and interlocked with the brake pedal to output an electrical signal, and a brake lamp which varies in intensity and interruption period, which are turned on according to the voltage and the interruption period of the output terminal of the controller 100, respectively. A brake light control circuit for a vehicle, comprising: (LAMP). 제1항에 있어서, 상기 콘트롤러(100)는 상기 차속센서(SPS)에서 입력된 신호의 주기를 감소시켜 출력하는 분주회로(120)와, 상기 광도전소자(CDS)에서 입력된 전압을 기준전압과 승산하여 출력하는 승산회로(110)와, 상기 분주회로(120)의 출력신호를 받는 접속제어단자 및 상기 승산회로(110)의 출력신호를 받는 입력단자가 구비되어 단속하여 출력하는 단속용 스위치 소자(130)와, 상기 스위치소자(130)의 출력신호에 따라전류를 증폭하는 증폭회로(140)로 구성된 것을 특징으로 한 자동차의 제동등 제어회로.The controller 100 of claim 1, wherein the controller 100 reduces the period of the signal input from the vehicle speed sensor SPS and outputs the divided circuit 120, and the voltage input from the photoconductive device CDS. A multiplier circuit 110 for multiplying and outputting the output signal, a connection control terminal receiving the output signal of the frequency divider circuit 120 and an input terminal receiving the output signal of the multiplication circuit 110 and intermittently outputting the intermittent switch A device for controlling a braking lamp of a vehicle, characterized in that it comprises an element (130) and an amplifying circuit (140) for amplifying the current in accordance with the output signal of the switch element (130).
KR1019950056069A 1995-12-26 1995-12-26 Brake lamp control circuit of a car KR0138665B1 (en)

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