KR20020014303A - An automotive head light having an auto leveling control system - Google Patents

An automotive head light having an auto leveling control system Download PDF

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Publication number
KR20020014303A
KR20020014303A KR1020000047510A KR20000047510A KR20020014303A KR 20020014303 A KR20020014303 A KR 20020014303A KR 1020000047510 A KR1020000047510 A KR 1020000047510A KR 20000047510 A KR20000047510 A KR 20000047510A KR 20020014303 A KR20020014303 A KR 20020014303A
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South Korea
Prior art keywords
vehicle
headlight
unit
signal
driving
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KR1020000047510A
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Korean (ko)
Inventor
전기환
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이계안
현대자동차주식회사
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Priority to KR1020000047510A priority Critical patent/KR20020014303A/en
Publication of KR20020014303A publication Critical patent/KR20020014303A/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
    • B60Q1/02—Arrangement 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
    • B60Q1/04—Arrangement 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
    • B60Q1/14—Arrangement 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 having dimming means
    • B60Q1/1415—Dimming circuits
    • B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
    • B60Q1/143—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic combined with another condition, e.g. using vehicle recognition from camera images or activation of wipers
    • 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
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/40—Indexing codes relating to other road users or special conditions
    • B60Q2300/42—Indexing codes relating to other road users or special conditions oncoming vehicle

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

Abstract

PURPOSE: A vehicle headlight having an automatic level adjuster is provided to adjust irradiation direction automatically in keeping the irradiation angle of a high beam of the headlight according to position of the vehicle with using ultrasonic waves. CONSTITUTION: A headlight for a vehicle is composed of a sensing unit(1) detecting surrounding vehicles by using ultrasonic waves in the front of the vehicle; a driving unit(2) amplifying and processing the signal from the sensing unit, and outputting a signal to adjust the headlight; and an operating unit(3) adjusting the headlight according to the driving unit. A center sensing unit(1b) of the sensing unit transmits a signal to a center driving unit(2b) of the driving unit in moving other vehicles near the traveling vehicle, and drives a low operating unit(3b) of the operating unit. The low beam is operated without obstructing the field of vision. The visual field is widened with operating the high beam of the headlight in absence of other vehicles. Traveling is performed safely with adjusting the irradiation angle and direction automatically.

Description

자동레벨조절시스템을 갖춘 차량용 전조등{An automotive head light having an auto leveling control system}An automotive head light having an auto leveling control system

본 발명은 자동레벨조절시스템을 갖춘 차량용 전조등에 관한 것으로, 보다 상세하게는 초음파를 이용하여 확인된 차량의 위치에 따라 전조등의 조사방향과 각도를 자동으로 조절하여 타 차량의 운전자에게 전조등의 불빛에 의한 운전방해를 일으키지 않도록 된 자동레벨조절시스템을 갖춘 차량용 전조등에 관한 것이다.The present invention relates to a headlamp for a vehicle equipped with an automatic level control system, and more particularly, to automatically adjust the irradiation direction and angle of the headlamp according to the position of the vehicle identified using ultrasonic waves, so that the driver of the other vehicle can receive the headlight. The invention relates to a vehicle headlight having an automatic level control system which does not cause driving disturbance.

일반적으로, 차량의 진행방향인 전방을 조명하기 위한 전조등은 보다 먼 곳까지 조명하고 동시에 도로 위와 주변도 조명하는 하이빔(HIGH)과 차량의 진행방향을 필요한 만큼 밝게 비치고 엇갈리는 상대방 차량의 운전자가 눈부시지 않도록 하는 로우빔(LOW)의 특성을 갖게 된다.In general, a headlight for illuminating the front of the vehicle, a high beam that illuminates farther and simultaneously illuminates the road and the surroundings, and the driver of the other vehicle that shines and crosses the direction of the vehicle as necessary, It has a characteristic of low beam (LOW) to avoid.

이와 같은 전조등은 그 조사각도가 매우 중요하지만 차량의 승차인원과 화물 적재량에 따라 차체가 어느 정도 기울게 됨에 따라 조사각도가 변하게되고 또한, 경사 도로를 주행하는 경우에도 조사각도가 변하게 되어 통상, 전조등에는 변화된 조사각도를 조정할 수 있는 보정장치를 구비하게 된다.Such headlights have a very important angle of irradiation, but the angle of inclination changes as the vehicle body is inclined to some extent depending on the number of passengers and load of the vehicle.In addition, the angle of illumination changes even when driving on a slope road. It is provided with a correction device that can adjust the changed irradiation angle.

이러한 보정장치는 운전자가 드라이버와 같은 공구를 이용하도록 된 수동식과 차량의 앞바퀴와 뒷바퀴의 스프링 변화에서 발생하는 차체의 기울기를 감지하는 자동식이 사용되고 있다.Such a correction device is used in which the driver uses a tool such as a driver, and an automatic type that detects the tilt of the vehicle body caused by the spring change of the front and rear wheels of the vehicle.

그러나, 이와 같은 수동식이나 자동식의 전조등 조사각도 보정장치들은 단순히 차체의 변화에 따라 변화된 조사각도 만을 조정하여 차량의 전조등에서 요구되는 조사각도 기준을 일치시켜주는 것에 불과한 것으로, 이러한 보정장치는 야간운전시 차량의 전방상황을 보다 잘 알 수 있는 사용되는 전조등의 하이빔에 의해 반대편 차선에서 접근해오는 차량의 운전자가 느끼는 눈부심에 의한 일시적인 시력장애를 해소할 수 없게 되는 근본적인 문제가 있게 된다.However, such manual or automatic headlight irradiation angle correction devices merely adjust the irradiation angle changed according to the change of the vehicle body to match the irradiation angle standard required by the headlight of the vehicle. Due to the high beam of the headlights used to better understand the vehicle's forward situation, there is a fundamental problem in that it is impossible to solve the temporary blindness caused by the glare felt by the driver of the vehicle approaching from the opposite lane.

통상, 전조등의 하이빔을 사용하는 운전자는 이와 같은 현상을 방지하기 위해 차량의 접근 시 하이빔 상태를 로우빔으로 전환한 후 차량이 지나간 다음 다시 하이빔으로 변환하거나 로우빔 만으로 야간 운행을 하여 불편할 뿐만 아니라 심각한 피로를 유발하는 문제가 있게 된다.In general, a driver using a high beam such as a headlamp switches a high beam state to a low beam when approaching a vehicle and then converts the vehicle to a high beam after driving, or to drive at night using only the low beam. There is a problem that causes fatigue.

이에 본 발명은 상기와 같은 점을 감안하여 발명된 것으로, 초음파를 이용하여 확인된 차량의 위치에 따라 전조등의 하이빔의 조사각도를 유지한 상태에서 조사방향만을 자동으로 조절하거나 또는 조사각도를 하향으로 조절하여 운전자 본인의 시야확보는 물론 타 차량의 운전자에게 불빛에 의한 운전방해를 일으키지 않도록 함에 그 목적이 있다.Accordingly, the present invention has been made in view of the above, and according to the position of the vehicle identified using ultrasonic waves, only the irradiation direction is automatically adjusted or the irradiation angle is downwardly maintained while maintaining the irradiation angle of the high beam of the headlamp. The purpose of the control is to secure the driver's own vision and to prevent the driver of other vehicles from driving by the lights.

상기와 같은 목적을 달성하기 위한 본 발명은, 차량의 전방에 구비되어 초음파를 이용하여 접근하는 차량의 유·무를 감지하는 센싱수단과, 이 센싱수단의 신호를 증폭·처리하여 전조등을 조정하기 위한 신호를 발생하는 구동수단 및 이 구동수단에 상응하여 전조등을 조정하는 작동수단으로 구성되는 것을 특징으로 한다.The present invention for achieving the above object, the sensing means for detecting the presence or absence of a vehicle that is provided in front of the vehicle to approach by using ultrasonic waves, and for amplifying and processing the signal of the sensing means for adjusting the headlights And driving means for generating a signal and operating means for adjusting the headlamps corresponding to the driving means.

도 1은 본 발명에 따른 차량용 전조등의 자동레벨조절시스템의 구성도1 is a block diagram of an automatic level control system of a headlamp for a vehicle according to the present invention

도 2는 본 발명에 따라 전방에 차량이 있어 전조등이 하향으로 조정된 상태도2 is a state in which the headlights are adjusted downward because there is a vehicle in front according to the present invention

도 3은 본 발명에 따라 전방에 차량이 없어 전조등이 상향으로 조정된 상태도3 is a state in which the headlight is adjusted upward because there is no vehicle in front according to the present invention

도 4는 본 발명에 따라 좌측으로 차량이 있어 전조등이 우측으로 조정된 상태도4 is a state in which the headlights are adjusted to the right because the vehicle to the left in accordance with the present invention

도 5는 본 발명에 따라 좌측으로 차량이 있어 전조등이 좌측으로 조정된 상태도5 is a state in which the headlights are adjusted to the left because the vehicle to the left in accordance with the present invention

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1 : 센싱수단1: sensing means

1a·1b·1c : 좌측·중앙·우측 센서부 2 : 구동수단1a, 1b, 1c: left, center, and right sensor parts 2: driving means

2a·2b·2c : 좌측·중앙·우측 구동부2a, 2b, 2c: left, center, and right side drive parts

2b'·2b" : 상향·하향 구동부2b '· 2b ": Upward and downward drive

3 : 작동수단3: operation means

3a·3b·3c·3d : 상향·하향·좌측·우측 작동부3a, 3b, 3c, 3d: Up, down, left and right operating parts

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 차량용 전조등의 자동레벨조절시스템의 구성도를 도시한 것인바, 본 발명은 차량의 전방에 구비되어 접근하는 차량의 유·무를 감지하는 센싱수단(1)과, 이 센싱수단(1)의 신호를 증폭·처리하여 전조등(H)을 조정하기 위한 전기적 신호를 발생하는 구동수단(2) 및 이 구동수단(2)에 상응하여 전조등(H)을 조정하는 작동수단(3)으로 구성되어진다.1 is a block diagram of an automatic level control system for a vehicle headlight according to the present invention, the present invention is provided in the front of the vehicle sensing means (1) for detecting the presence or absence of the approaching vehicle, and the sensing Driving means 2 for generating an electrical signal for adjusting the headlight H by amplifying and processing the signal of the means 1 and actuating means for adjusting the headlight H corresponding to the driving means 2; It is composed of

여기서, 상기 센싱수단(1)은 차량의 진행방향을 기준으로 그 좌측방향과 중앙방향 및 우측방향으로 근접되는 타 차량의 유·무를 판별하도록 차체의 전방부위의 좌측·중앙·우측 센서부(1a·1b·1c)로 이루어진 최소한 3개의 센서가 설치되고, 이 센서는 신호를 보내 되돌아오는 신호를 통해 물체의 위치나 존재를 확인하는 초음파를 이용하게 된다.Here, the sensing means (1) is the left, center, right sensor unit 1a of the front portion of the vehicle body to determine the presence or absence of other vehicles close to the left direction, the center direction and the right direction based on the traveling direction of the vehicle At least three sensors, consisting of 1b and 1c), are installed, which use ultrasonic waves to confirm the position or presence of the object by sending a signal back.

그리고, 상기 구동수단(2)은 센싱수단(1)의 각 센서부(1a·1b·1c)로부터 입력된 신호를 개별적으로 처리하도록 각각 일치되는 신호를 받는 좌측·중앙·우측 구동부(2a·2b·2c)로 구성되되, 이 중 중앙구동부(2b)는 전조등(H)을 상·하로 조정하기 위한 상향·하향 구동부(2b'·2b")로 이루어진다.Then, the driving means 2 is the left, center and right drive unit 2a, 2b which receives signals corresponding to each of the signals input from the sensor units 1a, 1b, 1c of the sensing means 1 separately. 2c), among which the center drive part 2b consists of an up-down drive part 2b '* 2b "for adjusting the headlight H up and down.

이때, 상기 구동부(2a·2b·2c)는 전술한 바와 달리 1곳으로 집적시킨 후 각 센서부(1a·1b·1c)의 신호에 따라 일치되는 구동신호를 출력하도록 통합된 로직이나 프로그램으로 형성할 수도 있음은 물론이다.At this time, the driving unit (2a, 2b, 2c) is formed of integrated logic or program to output a matching drive signal according to the signal of each sensor unit (1a, 1b, 1c) after integration in one place unlike the above Of course you can.

또한, 상기 작동수단(3)은 구동수단(2)의 구동부(2a·2b',2b"·2c)로부터 입력된 신호를 개별적으로 처리하도록 각각 일치되는 신호를 받는 상향·하향·좌측·우측 작동부(3a·3b·3c·3d)로 구성되되, 이 작동부(3a·3b·3c·3d)는 회전력을 발생하는 스텝 모터와 이의 회전력을 이용해 전조등(H)의 위치를 변화시키는 기어 등으로 구성됨은 물론이다.In addition, the actuation means 3 operates upward, downward, left, and right, which receive signals that are respectively matched to individually process signals input from the driving units 2a, 2b ', 2b ", 2c of the driving means 2. 3a, 3b, 3c, and 3d, and the actuating parts 3a, 3b, 3c, and 3d are gears for changing the position of the headlight H using the rotational force of the stepper motor. It is of course configured.

이하 본 발명의 작동을 상세히 설명한다.Hereinafter, the operation of the present invention will be described in detail.

먼저, 도 2에 도시된 바와 같이 차량의 주행 중 전방에서 타 차량이 근접해오게 되면, 이 차량의 존재를 확인한 센싱수단(1)의 중앙센서부(1b)가 구동수단(2)의 중앙구동부(2b)로 신호를 보내게 되고, 이어 중앙구동부(2b)는 다시 하향구동부(2b')를 통해 작동수단(3)의 하향작동부(3b)를 작동시키게 되며, 이에 따라 하향작동부(3b)는 일반적인 변환 메커니즘(도시되어 있지 않음)을 통해 전조등(H)을 하향으로 즉, 로우(LOW)빔 상태로 하여 타 차량 운전자의 시야를 방해하지 않게 된다.First, as shown in FIG. 2, when another vehicle approaches the vehicle while driving, the central sensor unit 1b of the sensing unit 1 confirming the existence of the vehicle is the central driver unit of the driving unit 2. 2b), and then the central driving unit 2b again operates the downward operating unit 3b of the operating unit 3 through the downward driving unit 2b ', and thus the downward operating unit 3b. Through the general conversion mechanism (not shown), the headlight H is lowered, that is, in a low beam state, so as not to obstruct other driver's view.

이어, 접근하는 타 차량이 지나간 후 전방에 차량이 없게되면 전술한 바와 같이 센싱수단(1)의 중앙센서부(1b)가 구동수단(2)의 중앙구동부(2b)로 신호를 보내게 되고, 이어 중앙구동부(2b)는 다시 상향구동부(2b")를 통해 작동수단(3)의 상향작동부(3a)를 작동시키게 되며, 이에 따라 도 3에 도시된 바와 같이 상향작동부(3a)는 전조등(H)을 상향으로 즉, 하이(HIGH)빔 상태로 하여 전방의 시야를 확보 하게된다.Subsequently, when there is no vehicle ahead after another vehicle passing by, the central sensor unit 1b of the sensing means 1 sends a signal to the central drive unit 2b of the driving means 2, Subsequently, the central driving unit 2b operates the upward operating unit 3a of the operating unit 3 through the upward driving unit 2b ″, and as a result, the upward operating unit 3a is a headlamp as shown in FIG. 3. The field of view of the front is secured by setting (H) upward, that is, in a high beam state.

한편, 도 4에 도시된 바와 같이 전방에서 근접된 타 차량이 좌측으로 가깝게 근접되면, 상기 센싱수단(1)의 좌측센서부(1a)가 구동수단(2)의 좌측구동부(2a)로신호를 보내게 되고, 이어 좌측구동부(2a)는 작동수단(3)의 좌측작동부(3a)를 작동시켜 전조등(H)을 좌측으로 이동시켜 타 차량 운전자의 시야를 방해하지 않게 된다.Meanwhile, as shown in FIG. 4, when another vehicle close to the front is close to the left, the left sensor part 1a of the sensing means 1 sends a signal to the left drive part 2a of the driving means 2. Then, the left driving unit 2a operates the left operating unit 3a of the operating unit 3 to move the headlight H to the left so as not to obstruct the vision of other vehicle drivers.

또한, 도 5에 도시된 바와 같이 차량의 우측으로 타 차량이 접근해오는 경우에도 센싱수단(1)의 우측센서부(1c)가 구동수단(2)의 우측구동부(2c)로 신호를 보내게 되고, 이어 우측구동부(2c)는 작동수단(3)의 우측작동부(3c)를 작동시켜 전조등(H)을 우측으로 이동시켜 타 차량 운전자의 시야를 방해하지 않게 된다.In addition, as shown in FIG. 5, even when another vehicle approaches the right side of the vehicle, the right sensor unit 1c of the sensing unit 1 sends a signal to the right driving unit 2c of the driving unit 2. Then, the right driving unit 2c operates the right operating unit 3c of the operating unit 3 to move the headlight H to the right so as not to disturb the vision of other vehicle drivers.

이상 설명한 바와 같이 본 발명에 의하면, 초음파를 이용하여 확인된 차량의 위치에 따라 전조등의 하이빔의 조사각도를 유지한 상태에서 조사방향만을 자동으로 조절하거나 또는 조사각도를 하향으로 조절하여 운전자 본인의 시야확보는 물론 타 차량의 운전자에게 불빛에 의한 운전방해를 일으키지 않게 되는 효과가 있게 된다.As described above, according to the present invention, according to the position of the vehicle identified by the ultrasonic wave, only the irradiation direction is automatically adjusted or the irradiation angle is adjusted downward while maintaining the irradiation angle of the high beam of the headlamp. As well as securing the driver of the other vehicle does not cause an interference caused by the light is effective.

Claims (2)

차량의 전방에 구비되어 초음파를 통해 접근하는 차량의 유·무를 감지하는 센싱수단(1)과, 이 센싱수단(1)의 신호를 선택적으로 처리하는 구동수단(2) 및 이 구동수단(2)의 선택된 신호에 따라 전조등(H)을 상향·하향·좌측·우측으로 조정하는 작동수단(3)을 통해 전조등(H)의 조사각도와 조사방향을 자동으로 조절하도록 된 자동레벨조절시스템을 갖춘 차량용 전조등.Sensing means (1) provided in the front of the vehicle for detecting the presence or absence of the vehicle approaching by ultrasonic waves, drive means for selectively processing the signal of the sensing means (1) and the drive means (2) For vehicles with an automatic level control system that automatically adjusts the irradiation angle and the direction of irradiation of the headlights H by means of an actuating means 3 for adjusting the headlights H up, down, left and right according to the selected signal of headlight. 제 1항에 있어서, 상기 센싱수단(1)은 차량의 진행방향을 기준으로 최소한 1곳 이상에서 초음파신호를 발생하고 수신하도록 된 것을 특징으로 하는 자동레벨조절시스템을 갖춘 차량용 전조등.The headlamp for a vehicle according to claim 1, wherein the sensing means (1) is configured to generate and receive an ultrasonic signal in at least one position based on the traveling direction of the vehicle.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10953787B2 (en) 2017-11-30 2021-03-23 Ford Global Technologies, Llc Headlamp leveling system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10953787B2 (en) 2017-11-30 2021-03-23 Ford Global Technologies, Llc Headlamp leveling system and method

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