KR0153094B1 - Brake lamp brightness control circuit - Google Patents
Brake lamp brightness control circuit Download PDFInfo
- Publication number
- KR0153094B1 KR0153094B1 KR1019950061153A KR19950061153A KR0153094B1 KR 0153094 B1 KR0153094 B1 KR 0153094B1 KR 1019950061153 A KR1019950061153 A KR 1019950061153A KR 19950061153 A KR19950061153 A KR 19950061153A KR 0153094 B1 KR0153094 B1 KR 0153094B1
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- lamp
- brake
- potential
- braking
- brake lamp
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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
- B60Q1/26—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
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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
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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
- B60Q1/26—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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
본 발명은 조도적응식 제동램프 밝기제어회로에 관한 것으로, 주변의 조도를 검출하는 조도검출센서(26)의 조도검출신호와 제동램프(22)의 구동 전위를 비교하여 제동램프(22)의 전위를 결정하는 비교수단(30), 제동검출스위치(12)에 의한 제동페달(10)의 조작검출신호와 시동검출수단(14)에 의해 검출되는 시동ON검출신호를 논리AND처리하여 상기 제동램프(22)의 구동신호를 발생하는 논리AND게이트(16) 그 논리 AND게이트(16)의 제동램프구동신호에 기초하여 소정회수의 발진신호를 발생하는 제동램프구동제어수단(18), 상기 비교수단(30)에 의해 설정되는 상기 제동램프(22)의 전위에 따라 상기 제동램프(22)에 대한 전위제한 저항(34)이 전기적으로 접속되어 제동램프(22)의 밝기가 조절되면서 소정회수 점멸되도록 스위칭되는 스위칭 트랜지스터(36)를 갖추어 구성된 것이다.The present invention relates to a brightness control circuit for adaptive illumination braking lamp, and compares the illumination detection signal of the illumination detection sensor 26 for detecting the ambient illumination with the driving potential of the brake lamp 22 to compare the potential of the brake lamp 22. A logic AND process of the operation detection signal of the brake pedal 10 by the comparison means 30 and the brake detection switch 12 and the start ON detection signal detected by the start detection means 14 to determine Logic AND gate 16 for generating a drive signal of 22. Brake lamp drive control means 18 for generating a predetermined number of oscillation signals based on the braking lamp drive signal of the logic AND gate 16, the comparison means ( According to the potential of the brake lamp 22 set by 30), the potential limiting resistor 34 for the brake lamp 22 is electrically connected so that the brightness of the brake lamp 22 is controlled so that the predetermined number of times flicker. Configured with switching transistor 36 Will.
Description
제1도는 본 발명의 바람직한 실시예에 따른 조도적응식 제동램프 밝기 제어회로를 나타낸 도면이다.1 is a diagram showing an illuminance adaptive braking lamp brightness control circuit according to a preferred embodiment of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 제동페달 12 : 제동검출스위치10: brake pedal 12: brake detection switch
14 : 시동검출부 16 : 논리AND게이트14: start detection unit 16: logic AND gate
18 : 제동램프점멸구동부 20 : 제동램프구동 트랜지스터18: Brake lamp flashing driving unit 20: Brake lamp driving transistor
22 : 제동램프 26 : 조도검출센서22: braking lamp 26: illuminance detection sensor
30 : 차동증폭기 34 : 전위제한 저항30: differential amplifier 34: potential limiting resistor
36 : 스위칭 트랜지스터36: switching transistor
본 발명은 조도적응식 제동램프 밝기제어회로에 관한 것으로, 보다 상세하게는 주변의 조도가 기준전위 이하로 검출되면 제동페달의 조작시 전위제한 저항이 전기적으로 접속되도록 하여 제동램프의 전위를 감소시켜 제동램프의 밝기를 낮추어 주면서 소정회수 점멸구동되도록 한 조도적응식 제동램프 밝기제어회로에 관한 것이다.The present invention relates to a brightness control circuit of the illuminance adaptive brake lamp, and more particularly, when the ambient illuminance is detected below the reference potential, the potential limiting resistor is electrically connected when the brake pedal is operated to reduce the potential of the brake lamp. The present invention relates to an illuminance adaptive braking lamp brightness control circuit which lowers the brightness of the braking lamp and causes a predetermined number of flashes to be driven.
일반적으로, 차량에는 그 후단에 전방 또는 후방차량의 운전자에게 해당하는 차량의 운행상태를 가시적으로 표시하기 위한 수단으로써 다수의 램프가 구비되는 바, 그 램프의 종류에 따르면 차량의 진행방향전환을 표시하기 위한 방향지시램프와, 야간운행시 해당하는 차량의 차폭을 표시하는 램프, 해당하는 차량의 후진상태를 표시하는 후진램프, 제동페달의 조작시 점등되는 제동램프가 포함된다.In general, the vehicle is provided with a plurality of lamps as a means for visually displaying the driving state of the vehicle corresponding to the driver of the front or rear vehicle at the rear end thereof, according to the type of the lamp to indicate the change of direction of the vehicle A direction indicating lamp, a lamp for indicating the vehicle width of the vehicle during the night driving, a reverse lamp for indicating the reverse state of the vehicle, and a braking lamp that is turned on when the brake pedal is operated.
여기서, 상기 제동페달의 조작시 점등되는 제동램프는 통상 적색광을 발광하게 되는 바, 그 적색광의 제동램프는 특히 주변의 조도가 낮은 야간에 보다 밝기가 높아지기 때문에, 예컨대 신호대기중에 전방의 차량이 제동페달을 밟고 있는 상태에서는 그 제동램프이 밝기가 주간에 비해 상대적으로 밝게 보이게 되어 그 전방의 차량에 근접하게 정차중인 후방차량의 운전자에게 시각적인 장애를 주게 된다.Here, the braking lamp which is turned on when the braking pedal is operated usually emits red light. The braking lamp of the red light has a higher brightness than at night, especially when the ambient light is low. When the pedal is pressed, the braking lamp becomes brighter than the daytime, causing visual impediment to the driver of the rear vehicle stopping near the vehicle in front of it.
따라서, 본 발명은 상기한 사정을 감안하여 이루어진 것으로, 주변의 조도가 기준전위 이하로 검출되면 제동페달시 제동램프이 점등에 적용되는 전압을 분압시켜 제동램프의 밝기를 낮추어 주면서 소정회수 점멸시켜 주도록 된 조도적응식 제동램프 밝기제어회로를 제공함에 그 목적이 있다.Accordingly, the present invention has been made in view of the above circumstances, and when the ambient illuminance is detected below the reference potential, the braking lamp divides the voltage applied to the lighting during the braking pedal, thereby lowering the brightness of the braking lamp and flashing the predetermined number of times. It is an object of the present invention to provide an illuminance adaptive braking lamp brightness control circuit.
상기한 목적을 달성하기 위해, 본 발명의 바람직한 실시예에 따르면 주변의 조도를 검출하는 조도검출센서의 조도검출신호와 제동램프의 구동전위를 비교하여 제동램프의 전위를 결정하는 비교수단, 제동검출스위치에 의한 제동페달의 조작검출신호와 시동검출수단에 의해 검출되는 시동ON검출신호를 논리AND처히하여 제동램프구동 스위칭트랜지스터를 통한 상기 제동램프의 구동신호를 발생하는 논리AND게이트, 그 논리AND게이트의 제동램프구동신호에 기초하여 소정회수의 발진신호를 발생하는 제동램프구동제어수단, 상기 비교수단에 의해 설정되는 상기 제동램프의 전위에 따라 상기 제동램프에 대한 전위제한저항이 전기적으로 접속되어 제동램프의 밝기가 조절되면서 소정회수 점멸되도록 스위칭되는 스위칭 트랜지스터를 갖추어 구성된 조도적응식 제동램프 밝기제어회로가 제공된다.In order to achieve the above object, according to a preferred embodiment of the present invention, the comparison means for determining the potential of the brake lamp by comparing the illumination detection signal of the illumination detection sensor for detecting the ambient illumination and the driving potential of the brake lamp, braking detection A logic AND gate for generating a drive signal of the brake lamp through the brake lamp drive switching transistor by logic ANDing the operation detection signal of the brake pedal by the switch and the start ON detection signal detected by the start detection means; A braking lamp driving control means for generating a predetermined number of oscillation signals based on the braking lamp driving signal of < RTI ID = 0.0 >, < / RTI > and a potential limiting resistor for the braking lamp is electrically connected according to the potential of the braking lamp set by the comparing means. Illumination with switching transistors switched to flash a certain number of times as the brightness of the lamp is controlled An adaptive braking lamp brightness control circuit is provided.
상기한 구성의 본 발명에 따른 조도적응식 제동램프 밝기제어회로에 의하면, 주변의 조도가 기준전위 이하로 검출되면 제동페달의 조작시 비교수단의 제동램프 전위레벨에 따라 분압저항을 회로적으로 접속시켜 상기 제동램프의 전위를 저하시키면서 제동램프구동수단이 소정회수 그 제동램프를 점멸구동시키게 된다.According to the illuminance-adaptive braking lamp brightness control circuit according to the present invention having the above-described configuration, if the peripheral illuminance is detected below the reference potential, the voltage divider is connected in circuit according to the braking lamp potential level of the comparison means when the braking pedal is operated. By lowering the potential of the brake lamp, the brake lamp driving means flashes the brake lamp a predetermined number of times.
이하, 본 발명의 바람직한 실시예에 따른 조도적응식 제동램프 밝기제어회로에 대해 첨부도면을 참조하여 상세하게 설명한다.Hereinafter, an illuminance adaptive braking lamp brightness control circuit according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
제1도는 본 발명에 따른 조도적응식 제동램프 밝기제어회로의 구성을 나타낸 도면으로, 참조부호 10은 해당하는 차량의 제동을 위한 제동페달을 나타내고, 12는 그 제동페달(10)의 조작시 스위칭접촉되는 제동검출스위치를 나타내며, 14는 해당하는 차량의 시동상태를 검출하는 시동검출부를 나타낸다.1 is a diagram showing the configuration of the brightness control circuit of the illumination control lamp according to the present invention, wherein reference numeral 10 denotes a braking pedal for braking of a corresponding vehicle, and 12 denotes switching during operation of the braking pedal 10. The braking detection switch in contact is shown, and 14 denotes a start detection unit for detecting a starting state of a corresponding vehicle.
16은 상기 제동검출스위치(12)에서 검출된 제동페달(10)의 조작검출신호와 상기 시동검출부(14)의 시동ON검출신호를 논리AND처리하여 제동램프(제1도에서 22)를 구동하기 위한 신호를 발생하는 논리AND게이트를 나타낸다.16 logically processes the operation detection signal of the brake pedal 10 detected by the brake detection switch 12 and the start ON detection signal of the start detection unit 14 to drive the braking lamp (22 in FIG. 1). A logic AND gate generating a signal for
18은 상기 논리AND게이트(16)에 의해 제동램프구동신호가 인가되면 소정회수의 구형파 펄스를 발생하고 나서 일정한 레벨의 제동램프(22)의 구동신호를 출력하는 제동램프구동부를 나타낸다.18 shows a brake lamp driver for generating a predetermined number of square wave pulses when the brake lamp drive signal is applied by the logic AND gate 16 and then outputting a drive signal of the brake lamp 22 having a predetermined level.
20은 상기 제동램프구동부(18)에 접속되어 초기에 인가되는 구형파 펄스에 의해서는 스위칭ON/OFF되고 후기의 일정한 제동램프(22)의 구동신호에 의해서는 상기 제동램프(22)를 점등구동하는 스위칭 트랜지스터를 나타낸다.20 is connected to the brake lamp driver 18 and is switched on / off by a square wave pulse initially applied, and the brake lamp 22 is lighted and driven by a drive signal of a later constant brake lamp 22. Represents a switching transistor.
24는 상기 제동램프(22)에 접속되어 그 제동램프(22)의 구동전위를 검출하기 위한 전위형성용 저항을 나타내고, 26은 주변조도의 검출을 위한 조도검출센서를 나타낸다.24 denotes a potential forming resistor for detecting the driving potential of the brake lamp 22, and 26 denotes an illuminance detection sensor for detecting peripheral illuminance.
30은 상기 전위형성용 저항(24)에 의해 검출되는 제동램프(22)의 구동전위와 상기 조도검출센서(26)의 조도검출신호를 차동증폭하여 상기 제동램프(22)의 구동전위를 제어하기 위한 차동증폭기를 나타내고, 36은 전위제한용 저항(34)에 대한 전기적인 스위칭접속을 제어하기 위한 스위칭 트랜지스터를 나타낸다.30 differentially amplifies the driving potential of the brake lamp 22 detected by the potential forming resistor 24 and the illumination detection signal of the illumination detection sensor 26 to control the driving potential of the brake lamp 22. And 36 represents a switching transistor for controlling the electrical switching connection to the potential limiting resistor 34.
이어, 상기한 구성의 본 발명에 따른 조도적응식 제동램프 밝기제어회로의 동작에 대해 상세하게 설명한다.Next, the operation of the illuminance adaptive braking lamp brightness control circuit according to the present invention having the above configuration will be described in detail.
먼저, 상기 제동페달(10)이 조작되면 상기 제동검출스위치(12)가 스위칭접속되어 상기 논리AND게이트(16)의 일단에 인가되고, 그 상태에서 시동검출부(14)에 의해 해당하는 차량의 시동이 ON상태가 검출되어 상기 논리AND게이트(16)의 타단에 인가된다.First, when the brake pedal 10 is operated, the brake detection switch 12 is switched and connected to one end of the logic AND gate 16, and in this state, the corresponding vehicle is started by the start detection unit 14. This ON state is detected and applied to the other end of the logical AND gate 16.
그러면, 상기 논리AND게이트(16)에서는 하이레벨의 신호가 제동램프구동신호로서 출력되어 상기 제동램프구동부(18)에 인가되고, 그에 따라 그 제동램프구동부(18)에서는 초기의 소정회수의 구형파 펄스를 발생하고나서 일정한 레벨의 제동램프구동신호를 발생하게 된다.Then, a high level signal is output from the logic AND gate 16 as a braking lamp driving signal and applied to the braking lamp driving unit 18. Accordingly, the braking lamp driving unit 18 initially has a predetermined number of times of square wave pulses. After generating, it generates a constant level braking lamp drive signal.
상기 제동램프구동부(18)에서 발생된 제동램프구동신호는 상기 스위칭 트랜지스터(20)에 인가되어 그 스위칭 트랜지스터(20)가 소정회수 ON/OFF구동되고 나서 ON상태로 유지되고, 그에 따라 상기 제동램프(22)가 점멸구동된 다음 점등상태로 유지된다.The braking lamp driving signal generated by the braking lamp driver 18 is applied to the switching transistor 20 so that the switching transistor 20 is kept ON after a predetermined number of times of ON / OFF driving, and accordingly the braking lamp (22) flashes and then remains on.
상기 제동램프(22)의 점등시 상기 전위형성용 저항(24)에 의해 형성된 제동램프 구동전위가 검출되어 상기 차동증폭기(30)의 일단에 인가되는 바, 그 차동증폭기(30)의 타단에는 조도검출센서(26)에 의해 검출된 조도검출신호가 인가되고, 그에 따라 상기 차동비교기(30)에서는 상기 조도검출센서(26)에 의해 검출되는 주변의 조도가 낮은 경우에는 하이레벨의 신호를 출력하게 되고, 그 하이레벨의 신호가 저항(32)을 매개하여 상기 스위칭 트랜지스터(36)에 인가된다.When the braking lamp 22 is turned on, a braking lamp driving potential formed by the potential forming resistor 24 is detected and applied to one end of the differential amplifier 30. The other end of the differential amplifier 30 has an illuminance. When the illuminance detection signal detected by the detection sensor 26 is applied, the differential comparator 30 outputs a high level signal when the ambient illuminance detected by the illuminance detection sensor 26 is low. The high level signal is applied to the switching transistor 36 via the resistor 32.
따라서, 상기 스위칭 트랜지스터(36)가 ON되면서 그 컬렉터측에 개재된 상기 전위제한용 저항(34)을 회로적으로 접속시키게 되고, 그에 따라 상기 제동램프(22)의 구동전위의 일부가 그 저항(34)과 트랜지스터(36)를 통해 바이패스되므로, 결국 상기 제동램프(22)에 인가되는 전위가 저하되게 되어 그 밝기의 조절이 이루어지게 된다.Accordingly, when the switching transistor 36 is turned on, the potential limiting resistor 34 interposed on the collector side is connected to the circuit, so that a part of the driving potential of the braking lamp 22 is part of the resistance ( Bypassing through the transistor 34 and the transistor 36, the potential applied to the brake lamp 22 is lowered to adjust the brightness.
한편, 본 발명에 따르면 상기 조도검출센서(26)에 대해 모드스위치를 제공하여 그 모드스위치의 조작시에만 상기 제동램프(22)의 전위조정이 이루어지도록 해도 된다.Meanwhile, according to the present invention, a mode switch may be provided to the illuminance detection sensor 26 so that the potential of the brake lamp 22 can be adjusted only when the mode switch is operated.
상기한 바와 같이, 본 발명에 따른 조도적응식 제동램프의 밝기 제어회로에 따르면, 주변의 조도가 기준전위 이하로 검출되면 제동페달의 조작시 비교수단의 제동램프의 전위레벨에 따라 분압저항을 회로적으로 접속시켜 상기 제동램프의 전위를 낮게 설정하게 되므로, 정차시 상기 제동램프이 밝기에 의해 후방의 운전자가 영향을 받지 않게 된다.As described above, according to the brightness control circuit of the illuminance-adaptive braking lamp according to the present invention, when the ambient illuminance is detected below the reference potential, the voltage divider resistance is adjusted according to the electric potential level of the braking lamp of the comparison means when the braking pedal is operated. Since the electric potential of the braking lamp is set to be low by connecting to each other, the driver behind the braking lamp is not affected by the brightness when the vehicle is stopped.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950061153A KR0153094B1 (en) | 1995-12-28 | 1995-12-28 | Brake lamp brightness control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950061153A KR0153094B1 (en) | 1995-12-28 | 1995-12-28 | Brake lamp brightness control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970037594A KR970037594A (en) | 1997-07-24 |
| KR0153094B1 true KR0153094B1 (en) | 1998-10-15 |
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ID=19445806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950061153A KR0153094B1 (en) | 1995-12-28 | 1995-12-28 | Brake lamp brightness control circuit |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0153094B1 (en) |
-
1995
- 1995-12-28 KR KR1019950061153A patent/KR0153094B1/en not_active IP Right Cessation
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| Publication number | Publication date |
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| KR970037594A (en) | 1997-07-24 |
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