KR19980037941A - Collision prevention alarm device and method of automobile - Google Patents
Collision prevention alarm device and method of automobile Download PDFInfo
- Publication number
- KR19980037941A KR19980037941A KR1019960056765A KR19960056765A KR19980037941A KR 19980037941 A KR19980037941 A KR 19980037941A KR 1019960056765 A KR1019960056765 A KR 1019960056765A KR 19960056765 A KR19960056765 A KR 19960056765A KR 19980037941 A KR19980037941 A KR 19980037941A
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- South Korea
- Prior art keywords
- vehicle
- distance
- wheel speed
- deceleration
- sensor
- Prior art date
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Classifications
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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
- B60Q1/50—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
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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
- B60Q1/46—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 giving flashing caution signals during drive, other than signalling change of direction, e.g. flashing the headlights or hazard lights
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- 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
- B60Y2400/3032—Wheel speed sensors
Abstract
본 발명은 자동차의 추돌방지 경보장치 및 방법에 관한 것으로, 본 발명의 목적은 자차의 급제동 등을 예측하여 후미차량에게 미리 경보함으로써, 선행차량과 자차와의 안전거리 미확보 등으로 인한 후미차량에 의한 추돌을 방지하는 자동차의 추돌방지 경보장치 및 방법을 제공하는데 있다.The present invention relates to an anti-collision warning device and a method of an automobile, and an object of the present invention is to predict a sudden braking of an own vehicle and to warn a rear vehicle in advance, thereby preventing the safety distance between the preceding vehicle and the own vehicle. An anti-collision warning device and method for preventing a collision are provided.
본 발명에 따른 자동차의 추돌방지 경보장치에서 차륜속도센서(10)와 거리감지센서(11)를 이용하여 측정된 차륜속도와 차간거리를 산출하고, 산출된 값을 이용하여 급제동을 예측하여 비상등(15)을 자동점등시킴으로써 후미차량에게 경보한다.In the anti-collision warning device of the present invention, the wheel speed and the distance between the wheels are measured using the wheel speed sensor 10 and the distance sensor 11, and the sudden braking is predicted using the calculated values. Auto-lights 15) to alert rear vehicles.
따라서, 자차가 급제동하게 될 것을 예측하여 후미차량에게 경보함으로써, 급제동을 예측하지 못한 후미차량에 의한 추돌을 방지하여 교통사고 및 이로 인한 인명피해를 예방하며 안전운전을 유도하는 이점이 있다.Accordingly, by predicting that the own vehicle will be suddenly braked, the rear vehicle is alerted, thereby preventing collision caused by the rear vehicle that has not been predicted sudden braking, thereby preventing traffic accidents and human injury caused by accident, and inducing safe driving.
Description
본 발명은 자동차의 추돌방지 경보장치 및 방법에 관한 것으로서, 더욱 상세하게는 자차가 전방차량과의 거리를 감지하고, 급제동 여부를 판단하여 후방의 차량에게 비상등을 이용하여 선택적으로 경보하는 자동차의 추돌방지 경보장치 및 방법에 관한 것이다.The present invention relates to a collision avoidance warning device and method of a vehicle, and more particularly, a collision of a vehicle in which the own vehicle senses a distance from a front vehicle and determines whether to brake rapidly and selectively alerts a rear vehicle by using an emergency light. It relates to a prevention alarm device and method.
근래 들어, 센서기술 및 이를 응용한 제어기술의 발달에 따라 운전의 편의를 도모함은 물론이고, 차량운행중에 발생하는 각종 사고로부터 운전자의 피해를 최소화하는 에어백(air bag)과 같은 사후안전수단이나 운전중에 잠재한 사고를 예측하여 운전자에게 경보함으로써 사고를 미연에 방지하기 위한 시도가 활발하게 진행되고 있다.Recently, in accordance with the development of the sensor technology and the control technology applied thereto, as well as the convenience of driving, as well as post-safety measures such as an air bag (air bag) that minimizes the driver's damage from various accidents occurring while driving Attempts are being made to prevent accidents by predicting potential accidents and alerting drivers.
이러한 시도중의 하나로 선행차량과의 충동가능성이 있다고 판단될 때 운전자에게 경고하는 시스템이 개발되었다. 이는 자차의 전방에 대하여 발사된 레이저빔이 선행차량에 의해 반사되어 돌아오기까지의 시간을 측정하여 자차와 선행차량과의 차간거리를 산출하고, 산출된 차간거리, 정지거리 및 자차와 선행차량의 상대속도 등을 종합적으로 고려하여 충돌가능성이 있다고 판단될 때 운전자에게 경보를 발하게 된다.As one of these attempts, a system was developed to warn the driver when there was a possibility of impulse with a preceding vehicle. It calculates the distance between the own vehicle and the preceding vehicle by measuring the time until the laser beam emitted to the front of the vehicle is reflected by the preceding vehicle to return and calculates the distance between the own vehicle and the preceding vehicle, and the calculated distance between the own vehicle and the preceding vehicle. The driver will be alerted when it is determined that there is a possibility of collision considering the relative speed.
그러나, 현재까지는 이러한 안전거리 미확보를 감지하여 후미차량에게 경보하는 장치가 제안되어 있지 않아 자차의 운전자가 안전거리 미확보에 대한 경보에 의해 급제동을 걸었을 경우에는 이를 예측하지 못한 후미차량에 의한 추돌위험의 문제가 발생한다.However, until now, no device has been proposed to detect such a safety distance and alert the rear vehicle. If the driver of his vehicle suddenly brakes due to an alarm for the safety distance, the collision risk caused by the rear vehicle is unexpected. Problem occurs.
본 발명의 목적은 자차의 급제동 등을 예측하여 후미차량에게 미리 경보함으로써, 선행차량과 자차와의 안전거리 미확보 등으로 인한 후미차량에 의한 추돌을 방지하는 자동차의 추돌방지 경보장치 및 방법을 제공하는데 있다.SUMMARY OF THE INVENTION An object of the present invention is to provide an anti-collision warning device and a method for preventing a collision by a tail vehicle by predicting a sudden braking of the own vehicle in advance and warning the tail vehicle in advance. have.
도 1은 본 발명에 따른 추돌방지 경보장치의 구성을 보인 블록도이다.1 is a block diagram showing the configuration of an anti-collision warning device according to the present invention.
도 2는 본 발명에 따른 추돌방지 경보장치의 작동을 보인 순서도이다.Figure 2 is a flow chart showing the operation of the collision prevention alarm device according to the invention.
* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
10...차륜속도센서 11...거리감지센서10 ... wheel speed sensor 11 ... distance sensor
12...제어부 15...비상등12 Control unit 15 Emergency light
본 발명의 목적을 달성하기 위하여 본 발명은, 비상상태를 경고하는 비상등을 구비한 자동차에 있어서, 자차의 차륜속도를 감지하는 차륜속도센서, 선행차량과의 거리를 감지하는 거리감지센서, 차륜속도센서와 거리감지센서에서 입력된 신호로 부터 급제동여부와 자차의 차체속도에 따른 선행차량과의 소정의 안전거리 유지여부를 판별하는 제어부, 후미차량에 경보하도록 제어부의 신호에 따라 비상등을 선택적으로 자동으로 점등시키는 비상등 구동부가 구비되는 것을 특징으로 한다.In order to achieve the object of the present invention, the present invention, in a vehicle having an emergency light for warning an emergency state, the wheel speed sensor for detecting the wheel speed of the own vehicle, the distance sensor for sensing the distance to the preceding vehicle, the wheel speed The controller detects whether the vehicle has a certain safety distance from the preceding vehicle according to the vehicle body speed of the vehicle and the emergency braking based on the signal input from the sensor and the distance sensor. It is characterized in that the emergency light driving unit to be turned on.
그리고, 본 발명은 차륜속도센서와 거리감지센서에서 감지된 신호에 따라 차륜속도와 차체속도, 선행차량과의 거리를 계산하는 계산단계(S102), 단계 S102에서 산출된 차륜속도를 이용하여 차륜의 가속도를 계산하는 단계(S103), 단계 S103에서 산출된 가속도를 이용하여 감속여부를 판단하는 단계(S104), 단계 S104에서 감속일 때, 감속도가 급제동시에 상응하는 감속임계치이상여부를 판단하는 단계(S105), 단계 S105에서 감속도가 임계치이상일 때, 연속적으로 감속상태가 감지되는 횟수가 임계횟수이상여부를 판단하는 단계(S106), 단계 S106에서 임계횟수이상일 때, 산출된 차체속도와 차간거리를 이용하여 차체속도에 따라 최소한으로 유지해야 하는 임계거리이내에 위치하는가를 판단하는 단계(S107), 단계 S107에서 임계거리 이내에 위치할 때, 비상등을 점등하는 단계(S108)를 포함하는 것을 특징으로 한다.In addition, the present invention calculates the distance between the wheel speed and the body speed, the preceding vehicle according to the signals detected by the wheel speed sensor and the distance sensor (S102), the wheel speed of the wheel using the calculated wheel speed Step S103 of calculating the acceleration, determining whether to decelerate using the acceleration calculated in step S103 (S104), and when deceleration in step S104, determining whether the deceleration is above the corresponding deceleration threshold value during sudden braking; In step S105, when the deceleration is greater than or equal to the threshold in step S105, determining whether the number of times the deceleration state is continuously detected is greater than or equal to the threshold number of times (S106). Determining whether the position within the threshold distance to be kept to a minimum according to the vehicle speed using the step (S107), when located within the threshold distance in step S107, turn on the emergency light It characterized in that it comprises a step (S108).
이하에서는 첨부도면을 참조하여 본 발명에 따른 바람직한 실시예를 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment according to the present invention.
도 1은 본 발명에 따른 추돌방지 경보장치의 구성을 보인 블럭도로, 이에 도시한 바와 같이, 추돌방지경보장치는 자차의 차륜의 속도와 자차와 선행차량간의 거리를 각각 감지하는 차륜속도센서(10)와 거리감지센서(11), 이러한 차륜속도센서(10)와 거리감지센서(11)에서 감지된 신호를 입력받아 이들을 이용하여 차륜속도, 선행차량간의 거리를 산출해내고, 이들을 이용하여 이에 적합한 출력신호를 보내는 제어부(12)를 구비한다. 또한, 비상사태를 경고하는 비상등(15), 비상등을 수동적으로 조작될 수 있도록 설치된 비상등 스위치(16), 제어부(12)나 비상등 스위치의 조작에 따라 선택적으로 비상등(15)을 점멸시키는 비상등 구동부(13), 비상등 구동부(13)에 전원을 인가하는 배터리(14)가 마련된다.1 is a block diagram showing a configuration of a collision prevention warning device according to the present invention, as shown in the collision prevention alarm device is a wheel speed sensor 10 for detecting the speed of the wheel of the own vehicle and the distance between the own vehicle and the preceding vehicle, respectively. ) And the distance detection sensor 11, the wheel speed sensor 10 and the signal detected by the distance detection sensor 11 is input to use them to calculate the wheel speed, the distance between the preceding vehicle, using them suitable for A control unit 12 for sending an output signal is provided. In addition, the emergency light 15 for warning of an emergency, an emergency light switch 16 installed so that the emergency light can be manually operated, an emergency light driver for selectively flashing the emergency light 15 according to the operation of the control unit 12 or the emergency light switch ( 13), a battery 14 for applying power to the emergency light driver 13 is provided.
이와 같이 구성된 본 발명에 따른 추돌방지 경보장치의 작동상태를 도 2를 참조하여 설명한다.The operating state of the collision avoidance warning apparatus according to the present invention configured as described above will be described with reference to FIG. 2.
이에 도시한 바와 같이, 먼저, 단계 S100에서는 차륜속도센서(10)에서 전자 픽업의 회전센서 등을 이용하여 자차 차륜의 회전상황을 감지하여 차륜속도 신호를 검출하고, 단계 S101에서 거리감지센서(11)에서는 선행차량에 전파를 보내고, 선행차량에 도달했다가 다시 자차로 반사되어 오는데 소요되는 시간을 측정하여 신호를 검출함으로써, 검출된 신호가 제어부(12)에 입력된다. 이렇게 차륜속도센서(10)와 거리감지센서(11)로 부터 각각 입력된 신호에 따라 각종 필요한 수치를 계산하는 단계 S102는 S101에서 검출된 신호에 따라 자차와 선행차량과의 차간거리를 계산하는 단계(S102a), 단계 S100에서 검출된 차륜속도 신호을 이용하여 차륜속도를 계산하는 단계(S102b)와 차륜속도를 이용하여 실제 차체의 속도를 추측하여 계산하는 단계(S102c)로 구성된다. 단계 S103에서는 계산단계(S102) 가운데 산출된 차륜속도를 이용하여 차륜가속도의 계산을 행한다. 이렇게 산출된 차륜가속도를 이용하여 이 산출된 값이 음의 값인지 양의 감인지를 판단하여 양의 값으로 판별되면 종료되고, 음의 값인 감속도로 판별되면 단계 S105로 진행된다. 단계 S105에서는 차륜의 감속도와 급제동으로 인식될 수 있는 미리 입력되어 있는 임계치를 비교하여 차륜의 감속도가 임계치이상이면 종료하고, 차륜의 감속도가 임계치이하로 판단되면 단계 S106을 행한다. 단계 S106에서는 연속적으로 차륜감속도가 임계치이하의 값으로 측정되는 횟수가 미리 입력되어 있는 임계횟수를 넘어서는가를 비교하는 단계로, 보통 3회로 설정되나, 이는 차종에 따라 그 횟수가 조절될 수 있다. 이 때, 측정횟수가 설정된 임계횟수이하이면 종료되고, 그렇지 않으면 단계 S107로 진행된다. 단계 S107에서는 이상의 조건을 만족하는 가운데 차체의 속도에 따른 선행차량간의 거리가 제동시에 발생되는 미끄럼 등을 감안하여 안전하게 제동할 수 있도록 미리 설정된 선행차량과 자차간의 차간임계거리와 비교하여 차간임계치 이상으로 판단되면 종료한다. 임계치는 보통 ABS에서 차량이 100km/h의 속도로 주행할 때 급제동거리는 보통 50m로 설정되어 있지만, 이또한, 차체의 속도 및 감속도에 따라 제동거리에 차이를 보이므로 임계치는 차종에 따라 조정되어 진다. 그리고, 현재의 차간거리가 임계치이하로 판단되면 단계 S108로 진행하여 비상등을 점등함으로써, 후미차량에게 경보하여 추돌 등에 의한 교통사고 방지 및 안전운전을 유도할 수 있다.As shown in the drawing, first, in step S100, the wheel speed sensor 10 detects a wheel speed signal by detecting a rotation state of the own vehicle wheel using a rotation sensor of an electronic pickup or the like, and in step S101, a distance sensor 11 In FIG. 2, the detected signal is input to the controller 12 by transmitting a radio wave to the preceding vehicle and measuring the time required for reaching the preceding vehicle and being reflected back to the host vehicle. The step S102 of calculating various necessary numerical values according to the input signals from the wheel speed sensor 10 and the distance sensor 11 is performed to calculate the distance between the host vehicle and the preceding vehicle according to the signal detected at S101. (S102a), calculating the wheel speed using the wheel speed signal detected in step S100 (S102b) and estimating and calculating the actual vehicle body speed using the wheel speed (S102c). In step S103, wheel acceleration is calculated using the wheel speed calculated in the calculation step S102. Using the wheel acceleration thus calculated, it is determined whether the calculated value is a negative value or a positive sense, and when it is determined to be a positive value, the process is terminated. In step S105, the deceleration of the wheel is compared with a previously input threshold value that can be recognized as sudden braking, and if the deceleration of the wheel is equal to or greater than the threshold, the step is terminated if the deceleration of the wheel is determined to be less than or equal to the threshold. In step S106, it is a step of comparing whether the number of times the wheel deceleration is continuously measured to be equal to or less than the threshold exceeds a predetermined number of times, which is usually set to three times, but the number of times may be adjusted according to the vehicle type. At this time, if the number of times of measurement is less than or equal to the set threshold, the process ends. Otherwise, the process proceeds to step S107. In step S107, the distance between the preceding vehicles according to the speed of the vehicle according to the speed of the vehicle while satisfying the above conditions is compared with the threshold distance between the preceding vehicle and the host vehicle so that the vehicle can be braked safely in consideration of slippage occurring during braking. Exit when judged. Threshold is normally set at 50m / h when the vehicle is traveling at 100km / h in ABS.However, the threshold is adjusted according to the vehicle type because the braking distance varies depending on the speed and deceleration of the body. Lose. When the distance between the vehicles is determined to be less than or equal to the threshold value, the process proceeds to step S108 where the emergency light is turned on, so that the rear vehicle may be alerted to prevent traffic accidents caused by collisions and to drive safe driving.
본 발명에 따른 자동차의 추돌방지 경보장치에서 차륜속도센서와 거리감지센서를 이용하여 측정된 차륜속도와 차간거리를 산출하고, 산출된 값을 이용하여 급제동을 예측하여 비상등을 자동점등시킴으로써 후미차량에게 경보한다.In the anti-collision warning device of the present invention, the wheel speed and the distance between the wheels are measured using the wheel speed sensor and the distance sensor, and predicted sudden braking using the calculated values, the emergency light is automatically turned on to the rear vehicle. Alarm.
따라서, 자차가 급제동하게 될 것을 예측하여 후미차량에게 경보함으로써, 급제동을 예측하지 못한 후미차량에 의한 추돌을 방지하여 교통사고 및 이로 인한 인명피해를 예방하며 안전운전을 유도하는 이점이 있다.Accordingly, by predicting that the own vehicle will be suddenly braked, the rear vehicle is alerted, thereby preventing collision caused by the rear vehicle that has not been predicted sudden braking, thereby preventing traffic accidents and human injury caused by accident, and inducing safe driving.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960056765A KR19980037941A (en) | 1996-11-22 | 1996-11-22 | Collision prevention alarm device and method of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960056765A KR19980037941A (en) | 1996-11-22 | 1996-11-22 | Collision prevention alarm device and method of automobile |
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| Publication Number | Publication Date |
|---|---|
| KR19980037941A true KR19980037941A (en) | 1998-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960056765A KR19980037941A (en) | 1996-11-22 | 1996-11-22 | Collision prevention alarm device and method of automobile |
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| Country | Link |
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| KR (1) | KR19980037941A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230001119U (en) | 2021-11-25 | 2023-06-01 | 강동연 | System for preventing a rear vehicle from colliding a preceding vehicle |
| KR20230001117U (en) | 2021-11-25 | 2023-06-01 | 강동연 | System for preventing a rear vehicle from colliding a preceding vehicle |
-
1996
- 1996-11-22 KR KR1019960056765A patent/KR19980037941A/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230001119U (en) | 2021-11-25 | 2023-06-01 | 강동연 | System for preventing a rear vehicle from colliding a preceding vehicle |
| KR20230001117U (en) | 2021-11-25 | 2023-06-01 | 강동연 | System for preventing a rear vehicle from colliding a preceding vehicle |
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