JPH09226491A - Rear end collision avoidance system for use with automobile - Google Patents

Rear end collision avoidance system for use with automobile

Info

Publication number
JPH09226491A
JPH09226491A JP8039257A JP3925796A JPH09226491A JP H09226491 A JPH09226491 A JP H09226491A JP 8039257 A JP8039257 A JP 8039257A JP 3925796 A JP3925796 A JP 3925796A JP H09226491 A JPH09226491 A JP H09226491A
Authority
JP
Japan
Prior art keywords
light
end collision
collision prevention
vehicle
optical sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8039257A
Other languages
Japanese (ja)
Inventor
Souji Kobayashi
操二 小林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KOBAYASHI SOKEN KK
Original Assignee
KOBAYASHI SOKEN KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KOBAYASHI SOKEN KK filed Critical KOBAYASHI SOKEN KK
Priority to JP8039257A priority Critical patent/JPH09226491A/en
Priority to KR1019960021972A priority patent/KR970061649A/en
Publication of JPH09226491A publication Critical patent/JPH09226491A/en
Pending legal-status Critical Current

Links

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
    • B60Q1/50—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 other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/525—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 other intentions or conditions, e.g. request for waiting or overtaking automatically indicating risk of collision between vehicles in traffic or with pedestrians, e.g. after risk assessment using the vehicle sensor data
    • B60Q1/535—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 other intentions or conditions, e.g. request for waiting or overtaking automatically indicating risk of collision between vehicles in traffic or with pedestrians, e.g. after risk assessment using the vehicle sensor data to prevent rear-end collisions, e.g. by indicating safety distance at the rear of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W2050/0001—Details of the control system
    • B60W2050/0043—Signal treatments, identification of variables or parameters, parameter estimation or state estimation
    • B60W2050/0047—Digital-analogue (D/A) or analogue-digital (A/D) conversion
    • 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

Landscapes

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

Abstract

PROBLEM TO BE SOLVED: To blink a light emitter to avoid rear end collision by providing a light sensor for detecting light from the headlights of a vehicle approaching from behind at night, and providing a rear end collision avoidance circuit which blinks the light emitter for a certain time when the light sensor detects light form the headlights. SOLUTION: A rear end collision avoidance circuit, if there is a vehicle approaching from behind at night, detects light from the headlights of the vehicle using a light sensor 1 and, if the amount of light is not less than a certain value, blinks a light emitter 3 for a certain time. A computing element calculates the average value of the magnitudes of signals output from the light sensor 1, and the circuit determines whether it is day or night from the average value; while the circuit determines that it is night, light from the headlights of the approaching vehicle is detected by the light sensor 1, and if there is an output not less than a certain value, the circuit determines that there is a vehicle approaching, and outputs a control signal to the light emitter 3 to blink the light emitter 3 for a certain time.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、夜間、路上において、
駐・停車中の自動車（乗用車、トラック、商用車、工事
車輌、オートバイ等を含む）に他車が追突する事故を防
止するための装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a device for preventing an accident in which a car parked or parked (including a passenger car, a truck, a commercial vehicle, a construction vehicle, a motorcycle, etc.) is hit by another vehicle.

【０００２】[0002]

【従来の技術】夜間、路上において、駐・停車ランプを
消したまま駐・停車している自動車に対する追突事故例
が多い。特に、トラックやバス、重機の場合は、車幅が
あることと、ライトの光を反射する物体が後方に少ない
ことから、大きな追突事故を招いている例が多い。そこ
で、最近、大型車輌の後部には反射板を取り付けること
が義務化されている。2. Description of the Related Art In the nighttime, many rear-end collisions occur on vehicles that are parked or stopped with the parking / stop lamp turned off on the road. In particular, in the case of trucks, buses, and heavy equipment, there are many cases in which a large rear-end collision has occurred because of the large vehicle width and the small number of objects reflecting light from the rear. Therefore, recently, it is obligatory to attach a reflector to the rear part of a large vehicle.

【０００３】[0003]

【発明が解決しようとする課題】一方、大型車輌以外の
自動車には追突防止装置の取り付けは義務化されていな
いことから、ハザードランプの点滅以外、追突防止のた
めの有効な手段はない。しかし、ハザードランプを点滅
させるのは、一時的なもので、夜間駐・停車している場
合にはバッテリーが上がってしまうために使用できず、
また、ハザードランプは運転者が積極的にスイッチＯＮ
しない限り点滅しないため、実効性に乏しい。本発明
は、夜間駐・停車中の大型車輌以外の自動車において、
運転者の積極的な意思がなくても、自動的にハイマウン
トに接近させて設けた発光体を点滅させて追突の防止を
図ることが目的である。On the other hand, since it is not obligatory to install a rear-end collision prevention device on a vehicle other than a large-sized vehicle, there is no effective means for preventing a rear-end collision other than blinking the hazard lamp. However, blinking the hazard lamp is temporary and cannot be used because the battery goes up when parked or stopped at night,
In addition, the driver actively switches on the hazard lamps.
Unless it blinks, it is not very effective. The present invention is applicable to automobiles other than large vehicles that are parked / stopped at night,
The purpose of this is to prevent a rear-end collision by automatically blinking a light-emitting body provided close to the high mount even without the driver's positive intention.

【０００４】[0004]

【課題を解決するための手段】本発明に係る追突防止装
置の構成は次のとおりである。The structure of the rear-end collision prevention device according to the present invention is as follows.

【０００５】１．ハイマウントに接近させて追突防止用
発光体を設けると共に、夜間、後方から接近してくる車
両のヘッドライトの光を感知するための光センサを設け
たこと、前記光センサがヘッドライトの光を感知したと
きに、一定時間前記発光体を発光させる追突防止回路を
設けたこと、を特徴とする自動車における追突防止装
置。[0005] 1. A light sensor for preventing rear-end collision is provided close to the high mount, and an optical sensor for detecting light from a headlight of a vehicle approaching from the rear at night is provided. A rear-end collision prevention device for an automobile, comprising a rear-end collision prevention circuit for causing the light-emitting body to emit light for a predetermined time when detected.

【０００６】２．周囲の明るさ及び接近して来る車輌の
ヘッドライトの光を検出する光センサと、前記光センサ
で検出されている周囲の明るさを示す出力信号の大きさ
を監視すると共に、この出力の大きさが、あらかじめ設
定された値よりも小さい時に夜間と判断し、この時、光
センサから、一定値以上の明るさを示す出力信号が入力
されたときに接近中の車輌があるものと判断して制御信
号を出力する演算器と、前記演算器からの信号を受けて
発光体を一定時間点滅する追突防止回路と、から成る自
動車における追突防止装置。[0006] 2. An optical sensor that detects the brightness of the surroundings and the light of a headlight of an approaching vehicle and the magnitude of an output signal indicating the brightness of the surroundings detected by the optical sensor are monitored, and the magnitude of this output is monitored. Is less than a preset value, it is determined to be nighttime.At this time, when an output signal indicating a brightness above a certain value is input from the optical sensor, it is determined that there is a vehicle approaching. And a rear-end collision prevention circuit for receiving a signal from the second arithmetic unit and blinking the light-emitting body for a certain period of time.

【０００７】３．前方に小孔付の入光制御カバーを取り
付けて成る光センサと、前記光センサから出力されるア
ナログ信号をデジタル信号に変更するＡ／Ｄ変換器と、
前記Ａ／Ｄ変換器から出力される信号の大きさが一定値
以下の場合には夜と判断し、この夜と判断している間に
一定値以上の大きさの信号が入力された場合、車輌のヘ
ッドライトの光と判断して制御信号を出力する演算器
と、前記演算器からの信号を受けて発光体を一定時間点
滅する追突防止回路と、から成る自動車における追突防
止装置。[0007] 3. An optical sensor having a light entrance control cover with a small hole attached to the front, and an A / D converter for converting an analog signal output from the optical sensor into a digital signal,
If the magnitude of the signal output from the A / D converter is less than a certain value, it is determined as night, and if a signal having a magnitude greater than a certain value is input during this night, A rear-end collision prevention device for a vehicle, comprising: an arithmetic unit for determining a light from a vehicle headlight and outputting a control signal; and a rear-end collision prevention circuit for receiving a signal from the arithmetic unit and blinking a light emitter for a predetermined time.

【０００８】４．光センサから出力される一定時間内の
複数の信号の平均値をとり、この平均値の大きさにより
夜間と昼間の区別を判断するように構成して成る前記１
又は２又は３記載の自動車における追突防止装置。4. 1. An average value of a plurality of signals output from an optical sensor within a fixed time is taken, and the magnitude of this average value is used to judge the distinction between nighttime and daytime.
Or a rear-end collision prevention device for an automobile according to 2 or 3.

【０００９】５．光センサから出力される信号の立ち上
りにより車輌が接近して来ているか否かを判断するよう
に構成して成る前記１又は２又は３又は４記載の自動車
における追突防止装置。[0009] 5. 5. The rear-end collision prevention device for an automobile according to 1 or 2 or 3 or 4, which is configured to determine whether or not the vehicle is approaching based on a rise of a signal output from the optical sensor.

【００１０】６．光センサから出力される信号の大きさ
が増加方向の場合は接近車輌ありと判断し、減少方向に
ある場合には車輌が遠ざかって行くと判断するように構
成して成る前記１又は２又は３又は４又は５記載の自動
車における追突防止装置。[0010] 6. When the magnitude of the signal output from the optical sensor is in the increasing direction, it is determined that there is an approaching vehicle, and when it is in the decreasing direction, it is determined that the vehicle is going away. Alternatively, the rear-end collision prevention device for an automobile according to 4 or 5.

【００１１】７．エンジンキーＯＦＦ、サイドブレーキ
ＯＮの条件を満たすとき発光体を点滅させる前記１又は
２又は３又は４又は５又は６記載の自動車における追突
防止装置。7. 7. The rear-end collision prevention device for an automobile according to 1 or 2 or 3 or 4 or 5 or 6 in which a light-emitting body blinks when conditions of engine key OFF and side brake ON are satisfied.

【００１２】８．車の後方及び側方に光センサを取り付
けて成る前記１又は２又は３又は４又は５又は６又は７
記載の自動車における追突防止装置。8. The above-mentioned 1 or 2 or 3 or 4 or 5 or 6 or 7 in which optical sensors are attached to the rear and side of the vehicle
A rear-end collision prevention device for the automobile described.

【００１３】９．ハイマウントの左又は右又は左右又は
上部又は下部又は中間に発光体を設けて成る前記１又は
２又は３又は４又は５又は６又は７又は８記載の自動車
における追突防止装置。9. 9. The rear-end collision prevention device for an automobile according to 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8, wherein a light-emitting body is provided on the left or right or right and left or right or upper or lower or middle of the high mount.

【００１４】[0014]

【作用】光センサは、感度以上の周囲の明るさがあった
場合、この明るさに比例する電圧信号を出力する。この
信号はＡ／Ｄ変換器によりデジタル信号に変換されて演
算器（マイクロコンピュータ）に入力される。演算器
は、入力された信号の大きさが一定値以上の場合は昼間
と判断し、一定値以下、例えば２ルックス以下の場合に
は夜間と判断する。そして、この夜間と判断している間
に２ルックスを超える光（ヘッドライトの光）を光セン
サが検出し、この信号が演算器に入力された場合、接近
車輌があるものと判断して、制御信号を出力する。この
制御信号は、追突防止回路を駆動して自動車の後部に取
り付けられたハイマウント近傍の発光体を一定時間点滅
させる。The optical sensor outputs a voltage signal proportional to the brightness when the brightness is higher than the sensitivity. This signal is converted into a digital signal by an A / D converter and input to a computing unit (microcomputer). When the magnitude of the input signal is equal to or greater than a certain value, the arithmetic unit determines that the signal is in the daytime, and when it is equal to or less than the certain value, for example, 2 lux or less, it determines that the signal is in the night. The light sensor detects light (headlight light) exceeding 2 looks while determining that the vehicle is night, and when this signal is input to the arithmetic unit, it is determined that there is an approaching vehicle. Outputs control signal. This control signal drives the rear-end collision prevention circuit to blink the light emitter near the high mount mounted on the rear part of the vehicle for a certain period of time.

【００１５】[0015]

【実施例】図１は、本発明に係る追突防止装置を取り付
けた乗用車であって、１は光センサ、２はハイマウン
ト、３はハイマウント２の両側に設けた追突防止用発光
体、４は追突防止回路であって、この追突防止回路４
は、夜間、後方から接近している車がある場合に、この
車のヘッドライトの光を光センサ１で検出し、この光量
が一定量以上になると発光体３を一定時間点滅させるも
のである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a passenger car equipped with a rear-end collision prevention device according to the present invention, in which 1 is an optical sensor, 2 is a high mount, 3 is a rear-end collision prevention light-emitting body provided on both sides of the high mount 2, and 4. Is a rear-end collision prevention circuit.
In the case where there is a car approaching from behind at night, the light from the headlight of the car is detected by the optical sensor 1, and when the amount of light exceeds a certain amount, the light emitting body 3 blinks for a certain period of time. .

【００１６】図２は、追突防止回路４の具体例であっ
て、１は光センサ、５はこの光センサ１の前方を被うカ
バー、６は角θの範囲内の入光のみに反応するようにす
るために、カバー５の正面に設けた小孔である。FIG. 2 shows a specific example of the rear-end collision prevention circuit 4, in which 1 is an optical sensor, 5 is a cover covering the front of the optical sensor 1, and 6 is responsive only to light incident within an angle θ. In order to do so, it is a small hole provided on the front surface of the cover 5.

【００１７】７は前記光センサ１から出力される光量に
比例したアナログ信号（電圧）をデジタル信号化するた
めのＡ／Ｄ変換器、８は演算器であって、この演算器８
は、光センサ１から出力される信号の大きさの平均値を
計算し、この値から昼、夜の判断を行い、夜と判断して
いる間に接近車輌のヘッドライトの光を光センサ１が検
出し、一定値以上の出力があったときに接近車輌ありと
判断して発光体３に制御信号を出力し、発光体３を一定
時間点滅させる。なお、発光体３は、ハイマウント２に
接近している限りにおいて、ハイマウント２の左又は右
又は左右又は上又は下又はハイマウントの中間に置いて
もよい。発光体３を駆動する電源は、実施例の場合ハイ
マウント２と共通である。又、上記実施例においては、
エンジンスイッチＯＦＦ、サイドブレーキＯＮの条件に
おいて発光体３が駆動する。Reference numeral 7 is an A / D converter for converting an analog signal (voltage) proportional to the amount of light output from the optical sensor 1 into a digital signal, and 8 is an arithmetic unit.
Calculates the average value of the magnitude of the signal output from the optical sensor 1, determines day and night from this value, and detects the light from the headlight of the approaching vehicle while the night sensor determines that it is night. Is detected and when there is an output of a certain value or more, it is determined that there is an approaching vehicle, a control signal is output to the light emitting body 3, and the light emitting body 3 blinks for a certain time. The light-emitting body 3 may be placed on the left or right or the left or right of the high mount 2, or above or below the middle of the high mount 2 as long as it is close to the high mount 2. The power source for driving the light emitting body 3 is common to the high mount 2 in the case of the embodiment. Also, in the above embodiment,
The light emitter 3 is driven under the condition that the engine switch is OFF and the side brake is ON.

【００１８】図３は追突防止装置の作動例を示すフロー
チャートであって、ステップ１００でイニシャライズ、
ステップ１０１で設定読込み、ステップ１０２でＡＣＣ
判断、ステップ１０３でＡ／Ｄ変換、ステップ１０４で
夜間判断、ステップ１０５で接近判断、ステップ１０６
で点滅時間を延長すべきか否かの判断、ステップ１０７
で発光体点滅タイマ処理、ステップ１０８で発光体の点
滅を一定時間行い、再びステップ１０２へ戻る。FIG. 3 is a flow chart showing an example of the operation of the rear-end collision prevention device.
Step 101 reads the setting, and step 102 reads ACC
Judgment, A / D conversion in step 103, night judgment in step 104, approach judgment in step 105, step 106
To determine whether the blinking time should be extended, step 107
In step 108, the light emitter blinking process is performed, and in step 108, the light emitter blinks for a certain period of time.

【００１９】[0019]

【発明の効果】本発明は以上のように、夜間、後方から
のヘッドライトの光を感知してハイマウント近傍の追突
防止用発光体を自動的に点滅させるようにしたので、例
えば、夜間駐・停車中の乗用車等への追突を防止する効
果がある。また、１個の光センサと演算器により、夜・
昼の判断とヘッドライトの光か否かを判断して発光体を
点滅させるため、次の効果を奏する。As described above, according to the present invention, the light of the headlight from the rear is detected at night, and the rear-end collision prevention light-emitting body near the high mount is automatically blinked. -It has the effect of preventing a rear-end collision with a stopped passenger car. In addition, with one optical sensor and calculator,
Since the light-emitting body is made to blink by the judgment of daytime and whether or not it is the light of the headlight, the following effects are achieved.

【００２０】ａ．センサが１個になった分、コストが安
く、回路も簡素化される。 ｂ．故障が少ない。 ｃ．小型化できる。 ｄ．演算器により制御を行うため、作動の設定等を自由
に変更できる。A. Since only one sensor is provided, the cost is low and the circuit is simplified. b. Less failure. c. Can be downsized. d. Since the control is performed by the arithmetic unit, the setting of operation and the like can be freely changed.

【図面の簡単な説明】[Brief description of drawings]

【図１】乗用車の後部に本発明に係る追突防止装置を取
り付けた例の説明図。FIG. 1 is an explanatory view of an example in which a rear-end collision prevention device according to the present invention is attached to a rear portion of a passenger car.

【図２】追突防止回路の説明図。FIG. 2 is an explanatory diagram of a rear-end collision prevention circuit.

【図３】追突防止装置の作動例を示すフローチャート。FIG. 3 is a flowchart showing an operation example of a rear-end collision prevention device.

【符号の説明】[Explanation of symbols]

１ 光センサ ２ ハイマウント ３ 発光体 ４ 追突防止回路 ５ カバー ６ 小孔 ７ Ａ／Ｄ変換器 ８ 演算器 1 Optical Sensor 2 High Mount 3 Light-Emitting Body 4 Rear-end Collision Prevention Circuit 5 Cover 6 Small Hole 7 A / D Converter 8 Computing Unit

Claims (9)

【特許請求の範囲】[Claims] 【請求項１】ハイマウントに接近させて追突防止用発光
体を設けると共に、夜間、後方から接近してくる車両の
ヘッドライトの光を感知するための光センサを設けたこ
と、 前記光センサがヘッドライトの光を感知したときに、一
定時間前記発光体を発光させる追突防止回路を設けたこ
と、 を特徴とする自動車における追突防止装置。1. A light emitting body for preventing a rear-end collision is provided close to a high mount, and an optical sensor for detecting light of a headlight of a vehicle approaching from the rear at night is provided. A rear-end collision prevention device for an automobile, comprising a rear-end collision prevention circuit for causing the light-emitting body to emit light for a predetermined time when the light of the headlight is detected. 【請求項２】周囲の明るさ及び接近して来る車輌のヘッ
ドライトの光を検出する光センサと、前記光センサで検
出されている周囲の明るさを示す出力信号の大きさを監
視すると共に、この出力の大きさが、あらかじめ設定さ
れた値よりも小さい時に夜間と判断し、この時、光セン
サから、一定値以上の明るさを示す出力信号が入力され
たときに接近中の車輌があるものと判断して制御信号を
出力する演算器と、前記演算器からの信号を受けて発光
体を一定時間点滅する追突防止回路と、から成る自動車
における追突防止装置。2. An optical sensor for detecting the brightness of the surroundings and the light of a headlight of an approaching vehicle, and a magnitude of an output signal indicating the brightness of the surroundings detected by the optical sensor. , When the magnitude of this output is smaller than the preset value, it is judged as night, and at this time, when the output signal indicating the brightness above a certain value is input from the optical sensor, the vehicle approaching A rear-end collision prevention device for an automobile, comprising: an arithmetic unit that determines that there is a certain one and outputs a control signal; and a rear-end collision prevention circuit that receives a signal from the arithmetic unit and blinks a light emitter for a certain period of time. 【請求項３】前方に小孔付の入光制御カバーを取り付け
て成る光センサと、 前記光センサから出力されるアナログ信号をデジタル信
号に変更するＡ／Ｄ変換器と、前記Ａ／Ｄ変換器から出
力される信号の大きさが一定値以下の場合には夜と判断
し、この夜と判断している間に一定値以上の大きさの信
号が入力された場合、車輌のヘッドライトの光と判断し
て制御信号を出力する演算器と、 前記演算器からの信号を受けて発光体を一定時間点滅す
る追突防止回路と、 から成る自動車における追突防止装置。3. An optical sensor having a light entrance control cover with a small hole attached to the front, an A / D converter for converting an analog signal output from the optical sensor into a digital signal, and the A / D conversion. If the magnitude of the signal output from the vessel is below a certain value, it is judged as night, and if a signal of a certain value or more is input during this night, the headlight of the vehicle A rear-end collision prevention device for a vehicle, comprising: an arithmetic unit that determines a light and outputs a control signal; and a rear-end collision prevention circuit that receives a signal from the arithmetic unit and blinks a light-emitting body for a certain period of time. 【請求項４】光センサから出力される一定時間内の複数
の信号の平均値をとり、この平均値の大きさにより夜間
と昼間の区別を判断するように構成して成る請求項１又
は２又は３記載の自動車における追突防止装置。4. An apparatus according to claim 1, wherein an average value of a plurality of signals output from the optical sensor within a fixed time is taken, and the magnitude of the average value is used to judge the distinction between nighttime and daytime. Or a rear-end collision prevention device for an automobile according to item 3. 【請求項５】光センサから出力される信号の立ち上りに
より車輌が接近して来ているか否かを判断するように構
成して成る請求項１又は２又は３又は４記載の自動車に
おける追突防止装置。5. A rear-end collision prevention device for an automobile according to claim 1, 2 or 3 or 4, wherein it is configured to judge whether or not the vehicle is approaching by a rise of a signal output from the optical sensor. . 【請求項６】光センサから出力される信号の大きさが増
加方向の場合は接近車輌ありと判断し、減少方向にある
場合には車輌が遠ざかって行くと判断するように構成し
て成る請求項１又は２又は３又は４又は５記載の自動車
における追突防止装置。6. When the magnitude of the signal output from the optical sensor is in the increasing direction, it is determined that there is an approaching vehicle, and when it is in the decreasing direction, it is determined that the vehicle is going away. Item 1. A rear-end collision prevention device for an automobile according to item 1 or 2 or 3 or 4 or 5. 【請求項７】エンジンキーＯＦＦ、サイドブレーキＯＮ
の条件を満たすとき発光体を点滅させる請求項１又は２
又は３又は４又は５又は６記載の自動車における追突防
止装置。7. Engine key OFF, side brake ON
The light-emitting body is made to blink when the condition of 1 is satisfied.
Or a rear-end collision prevention device for an automobile according to 3 or 4 or 5 or 6. 【請求項８】車の後方及び側方に光センサを取り付けて
成る請求項１又は２又は３又は４又は５又は６又は７記
載の自動車における追突防止装置。8. A rear-end collision prevention device for an automobile according to claim 1, 2 or 3 or 4 or 5 or 6 or 7, wherein optical sensors are attached to the rear and side of the vehicle. 【請求項９】ハイマウントの左又は右又は左右又は上部
又は下部又は中間に発光体を設けて成る請求項１又は２
又は３又は４又は５又は６又は７又は８記載の自動車に
おける追突防止装置。9. The high-mount left or right or right and left or right or upper or lower or middle is provided with a light-emitting body.
Or a rear-end collision prevention device for an automobile according to 3 or 4 or 5 or 6 or 7 or 8.
JP8039257A 1996-02-07 1996-02-27 Rear end collision avoidance system for use with automobile Pending JPH09226491A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP8039257A JPH09226491A (en) 1996-02-27 1996-02-27 Rear end collision avoidance system for use with automobile
KR1019960021972A KR970061649A (en) 1996-02-07 1996-06-18 Collision prevention device of car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8039257A JPH09226491A (en) 1996-02-27 1996-02-27 Rear end collision avoidance system for use with automobile

Publications (1)

Publication Number Publication Date
JPH09226491A true JPH09226491A (en) 1997-09-02

Family

ID=12548098

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8039257A Pending JPH09226491A (en) 1996-02-07 1996-02-27 Rear end collision avoidance system for use with automobile

Country Status (2)

Country Link
JP (1) JPH09226491A (en)
KR (1) KR970061649A (en)

Also Published As

Publication number Publication date
KR970061649A (en) 1997-09-12

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