KR960002581B1 - Car collision preventing method in case of rain - Google Patents

Car collision preventing method in case of rain Download PDF

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KR960002581B1
KR960002581B1 KR1019930030579A KR930030579A KR960002581B1 KR 960002581 B1 KR960002581 B1 KR 960002581B1 KR 1019930030579 A KR1019930030579 A KR 1019930030579A KR 930030579 A KR930030579 A KR 930030579A KR 960002581 B1 KR960002581 B1 KR 960002581B1
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mode
predetermined time
elapsed
speed mode
safety distance
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KR950017508A (en
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조정식
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현대전자산업주식회사
김주용
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q9/00Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling

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  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Traffic Control Systems (AREA)
  • Regulating Braking Force (AREA)

Abstract

checking whether there is an intermittent mode; if there is the intermittent mode, checking whether time is passed or not; if the time goes by, operating a collision preventing unit by changing a stable distance setting unit to the intermittent mode stabilization distant; if there is not intermittent mode in the above, checking whether the mode is of a low-speed; in case of the low-speed mode, checking whether a predetermined time goes by; if the time goes by, operating the collision preventing unit by changing the stable distance setting unit to the intermittent mode stabilization distant; if there is not the low-speed mode in the above, checking whether the mode is of a high-speed; if there is the high-speed mode, checking whether a predetermined time goes by; if the time goes by, operating the collision preventing unit by changing the stable distance setting unit to the intermittent mode stabilization distant; and if the determined time does not go by, or in case that the mode is not of the high-speed, operating the collision preventing unit by setting the stable distance during clear weather as a standard.

Description

우천시 자동차 충돌 방지 방법How to Prevent Car Crash in Rainy Conditions

첨부한 제1도는 본 발명 우천시 자동차 충돌 방지 방법의 동작 순서도.Attached Figure 1 is a flow chart of the operation of the vehicle collision prevention method of the present invention rain.

본 발명은 광을 이용하여 거리를 측정하는 자동차 충돌 방지 장치에 관한 것으로, 특히 비나 눈이 올 경우 상황에 따라 다르게 동작하도록 함으로써, 우천시 자동차 충돌 방지 장치에서 우천시 성능 저하에 따른 안전성의 저하를 감소시킬 수 있도록 한 우천시 자동차 충돌 방지 방법에 관한 것이다.The present invention relates to a vehicle collision avoidance device for measuring the distance by using light, and in particular to operate differently depending on the situation in the rain or snow, it is possible to reduce the deterioration of safety due to the performance degradation in the rain in the vehicle collision prevention device in rainy weather. It is about how to avoid car collision in rainy weather.

일반적으로, 자동차의 사고를 사전에 예방하기 위하여 개발되는 충돌 방지 장치들은 대부분 광을 이용하여 비접촉으로 전방차와의 거리를 인식함으로써, 자차와 전방차와의 거리가 안전거리 이하로 되면 자동적으로 제동을 걸어 사고를 예방하거나 운전자에게 경보를 해주어 사고를 예방하도록 되어 있다.In general, most of the collision avoidance devices developed to prevent an accident of a vehicle recognize the distance between the vehicle in front without contact by using light, and automatically brake when the distance between the vehicle and the vehicle falls below a safety distance. To prevent accidents or to alert drivers to prevent accidents.

이러한 장치에서는 자차의 속도와 전방차의 속도, 전방차와의 거리, 차의 제동거리ㆍ사람의 반응시간등을 고려하여 각 상황에 맞게 적합한 안전거리를 미리 설정하여 놓고 자동차 주행중 주위 각 상황을 분석하여 해당 상황하에서 자차와 전방차의 거리가 안전거리 이하로 되면 운전자에게 경보를 하거나 자동적으로 제동을 걸어준다.In such a device, considering the speed of the own vehicle, the speed of the vehicle ahead, the distance from the vehicle ahead, the braking distance of the car, and the reaction time of the person, the appropriate safety distance is set in advance for each situation and the surrounding conditions are analyzed while driving. In this situation, when the distance between the own vehicle and the front vehicle is less than the safety distance, the driver is alerted or braked automatically.

그러나, 이와같은 종래의 자동차 충돌 방지 장치에 사용되는 광학식 거리 측정장치에서 기준으로 취한 안전거리 데이타는 맑은 날의 정상적인 도로상황을 기준으로 하여 설정한 거리이므로, 우천시에는 비나 눈과 같은 기후조건에 따라 목표물에 맞고 반사되어 돌아오는 광이 영향을 받기 때문에 기후조건이 좋지 못한 날은 그 성능을 제대로 발휘하지 못하게 됨으로써, 비나 눈과 같은 악천후의 경우에 맑게 개인 날과 동일하게 장치를 동작시킨다면 시야의 협소, 제동거리의 증가등에 의해 사고 예방 기능의 성능이 저하되는 문제점이 있었다.However, the safety distance data taken as a reference in the optical distance measuring device used in such a conventional vehicle collision avoidance device is set based on the normal road conditions on a clear day, so in rainy weather depending on the weather conditions such as rain or snow Because the light that hits the target and reflects back is affected, it may not be able to perform well in bad weather conditions, so if the device is operated in the same way as the clear day in bad weather such as rain or snow, There is a problem in that the performance of the accident prevention function is degraded due to an increase in the braking distance.

본 발명은 이와같은 종래의 문제점을 감안하여, 우천시와 와이퍼의 상황을 감시하여 안전거리를 조정함으로써, 우천시 사고예방능력을 증가시킴을 특징으로 한다.The present invention is characterized by increasing the accident prevention ability in rainy weather by adjusting the safety distance by monitoring the situation of the rainy weather and the wiper in view of such a conventional problem.

즉, 우천시에 운전자는 차량에 부착된 와이퍼를 비나 눈내리는 상태에 따라 각각 다르게 작동시키게 되므로써, 이 와이퍼 신호의 상태를 이용하여 각종 경보관련 기준 데이타를 기후조건에 맞게 변경 설정함으로써, 우천시 자동차 충돌 방지 장치의 신뢰성을 향상시킬 수 있도록 한 것이다.In other words, the driver operates the wiper attached to the vehicle differently according to the rain or snowing conditions in rainy weather, thereby changing various alarm-related reference data according to the weather conditions by using the state of the wiper signal, thereby preventing the collision of the car in the rainy weather. It is to improve the reliability of the device.

이하 도면을 참조하여 상세히 설명하면 다음과 같다.When described in detail with reference to the drawings as follows.

일반적으로, 자동차에는 어느 회사 어느 차종에나 자동차 전면 유리의 오염상태를 제거하는 장치로 와이퍼를 설치하여 놓고 있다.Generally, wipers are installed in automobiles of any company to remove contamination of the windshield of the automobile.

이 와이퍼 장치는 우천시 그 정도에 따라 운전자가 선택하여 사용할 수 있도록 세가지 모드로 되어 있다.This wiper device has three modes for the driver to select and use according to the degree of rain.

그 세가지는 비가 약하게 올때 사용하는 간헐모드, 비가 어느정도 올 경우에 사용하는 저속모드, 비가 매우 많이 올 경우에 사용하는 고속모드로 구분된다.The three types are divided into the intermittent mode used when the rain is weak, the low speed mode used when there is some rain, and the high speed mode used when the rain is very heavy.

따라서, 운전자는 자신의 특성에 맞게 우천시 적절한 모드를 사용하여 와이퍼를 구동시킨다.Therefore, the driver drives the wiper using the appropriate mode in the rain according to his characteristics.

본 발명 우천시 자동차 충돌 방지 방법은, 상기와 같이 우천시에 운전자가 작동시키는 와이퍼 신호의 상태를 검지함으로써, 이 와이퍼 신호의 모드를 인식하여 해당모드의 상황에 맞게 안전거리를 변화시켜 주는 것이다. 맑게 개인 날에 설정된 각 상황하의 안전거리를 1로 했을 때 동일한 상황하에서 기후조건만을 고려하여 간헐모드에서는 1.1, 저속모드에서는 1.2, 고속모드에서는 1.3과 같이 우천시에 운전자의 시야가 좁아지는 것에 의한 사고 발생의 가능성과 로면 상태에 따라 차량의 제동거리가 길어지는 것을 각 상황에 따라 안전거리 여유를 설정해 주므로써, 우천시에 자동차 충돌 방지 장치가 기능이 저하되는 것을 보상할 수 있다.In the rainproof vehicle collision prevention method of the present invention, by detecting the state of the wiper signal that the driver operates in the rain as described above, to recognize the mode of the wiper signal to change the safety distance according to the situation of the mode. When the safety distance under each situation set on a clear day is 1, the driver's field of view is narrowed in rainy weather such as 1.1 in intermittent mode, 1.2 in low speed mode and 1.3 in high speed mode, considering only the weather conditions under the same circumstances. By setting the safety distance margin according to the situation that the braking distance of the vehicle is increased according to the possibility of occurrence and the road surface condition, it is possible to compensate the deterioration of the function of the vehicle collision prevention device in the rain.

또한, 사용자가 우천시가 아닌 상태에서 전면 유리의 청소를 위해 와이퍼를 구동시켰을 경우, 장치의 오동작을 방지하기 위해 와이퍼가 일정시간 구동해야 해당모드의 우천시라고 인식하도록 하였다.In addition, when the user drives the wiper for cleaning the front glass in a rainy state, in order to prevent the malfunction of the device, the wiper must be driven for a certain time to recognize that it is rainy in the corresponding mode.

또한, 우천시 운전자들의 시야가 좁아지는 관계로 자차가 전방의 위험상황을 감지하고 제동을 거는 경우, 후속차 운전자에게 보다 알기 쉽게 하기 위해 일정이상의 감속을 하는 경우는 경고등을 자동적으로 점멸시킨다.In addition, when the driver's field of view is narrowed in rainy weather, when the vehicle detects a dangerous situation in front of the vehicle and brakes, the warning light automatically blinks when the driver decelerates more than a certain amount to make it easier for the subsequent driver to understand.

상기 동작을 순서도로 나타내면 첨부한 도면에 도시한 바와같이, 자동차 주행시 충돌 방지 장치를 작동하여 일정속도 이상 감속하면 후방 경고 표시등을 자동적으로 점멸한 후, 간헐모드인가를 판단하는 제1단계(S1)와 ; 간헐모드인 경우 일정시간이 경과되었는가를 판단하는 제2단계(S2)와 ; 일정시간이 경과된 경우, 안전거리 설정을 간헐모드 안전 거리로 변경하여 충돌 방지 장치를 작동하는 제3단계(S3)와 ; 간헐모드 판단 단계(S1)에서 간헐모드가 아닌 경우, 저속모드인가를 판단하는 제4단계(S4)와 ; 저속모드인 경우 일정시간이 경과되었는가를 판단하는 제5단계(S5) ; 일정시간이 경과된 경우 안전거리 설정을 저속모드 안전거리로 변경하여 충돌 방지 장치를 작동시키는 제6단계(S6)와 ; 저속모드 판단 단계(S4)에서 저속모드가 아닌 경우 고속모드인가를 판단하는 제7단계(S7)와 ; 고속모드인 경우 일정시간이 경과되었는가를 판단하는 제8단계(S8)와 ; 일정시간이 경과된 경우, 안전거리 설정을 고속모드 안전거리로 변경하여 충돌 방지 장치를 작동하는 제9단계(S9)와 ; 일정시간이 경과되지 않았거나 고속모드가 아닌 경우, 맑은 날씨 안전거리를 표준으로 설정하여 충돌 방지 장치를 작동하는 제10단계(S10)로 순차 동작한다.As shown in the accompanying drawings, when the operation is shown in a flowchart, the first step (S1) of determining whether the vehicle is in an intermittent mode after automatically blinking the rear warning light when the collision prevention device is operated and the vehicle decelerates more than a predetermined speed is shown. Wow ; A second step S2 of determining whether a predetermined time has elapsed in the intermittent mode; A third step (S3) of operating the collision avoidance device by changing the safety distance setting to an intermittent mode safety distance when a predetermined time has elapsed; A fourth step S4 of determining whether or not the intermittent mode is the low speed mode in the intermittent mode determination step S1; A fifth step (S5) of determining whether a predetermined time has elapsed in the low speed mode; A sixth step (S6) of operating the collision avoidance device by changing the safety distance setting to the low speed mode safety distance when a predetermined time has elapsed; A seventh step S7 of determining whether or not the high speed mode is entered in the low speed mode determination step S4; An eighth step S8 of determining whether a predetermined time has elapsed in the high speed mode; If a predetermined time has passed, the ninth step (S9) to operate the collision avoidance device by changing the safety distance setting to the high-speed mode safety distance; If a predetermined time has not elapsed or the vehicle is not in the high speed mode, the operation is sequentially performed in a tenth step S10 of operating a collision avoidance device by setting a clear weather safe distance as a standard.

이상에서 상세히 설명한 바와같이 본 발명은, 기계의 기능과 사람의 판단력을 조합하여 우천시 충돌 방지 장치의 검지거리가 짧아지고 운전자의 시야도 좁아지며 제동거리도 길어져 장치의 성능이 저하되는 것을, 우천시 해당상황에 따라 운전자가 작동시키는 와이퍼의 동작을 감시하여 표준의 경우보다 동일한 상황하에서의 안전거리를 늘려 줌으로써, 장치 및 시야, 제동거리에 의해 사고예방 능력이 감소되는 것을 보정하여 우천시 안전성을 향상시킬 수 있는 효과가 있다.As described in detail above, the present invention combines the functions of the machine and the judgment of the person, so that the detection distance of the collision avoidance device in the rain becomes shorter, the driver's field of view becomes narrower, and the braking distance increases, so that the performance of the device decreases. By monitoring the movement of the wiper operated by the driver according to the situation and increasing the safety distance under the same situation than the standard case, the accident prevention ability can be compensated for by the device, the field of view, and the braking distance to improve safety in rainy weather. It works.

Claims (1)

자동차 주행시 충돌 방지 장치를 작동하여 일정 속도 이상 감속하면 후방 경고 표시등을 자동으로 점멸한 후, 간헐모드인가를 판단하는 제1단계(S1)와; 간헐모드인 경우 일정시간이 경과되었는가를 판단하는 제2단계(S2)와; 일정시간이 경과된 경우, 안전거리 설정을 간헐모드 안전거리로 변경하여 충돌 방지 장치를 작동하는 제3단계(S3)와; 간헐모드 판단 단계(S1)에서 간헐모드가 아닌 경우, 저속모드인가를 판단하는 제4단계(S4)와; 저속모드인 경우 일정시간이 경과되었는가를 판단하는 제5단계(S5)와; 일정시간이 경과된 경우 안전거리 설정을 저속모드 안전거리로 변경하여 충돌 방지 장치를 작동시키는 제6단계(S6)와; 저속모드 판단 단계(S4)에서 저속모드가 아닌 경우 고속모드인가를 판단하는 제7단계(S7)와; 고속모드인 경우 일정시간이 경과되었는가를 판단하는 제8단계(S8)와; 일정시간이 경과된 경우, 안전거리 설정을 고속모드 안전거리로 변경하여 충돌 방지 장치를 작동하는 제9단계(S9)와; 일정시간이 경과되지 않았거나 고속모드가 아닌 경우, 맑은 날씨 안전거리를 표준으로 설정하여 충돌 방지 장치를 작동하는 제10단계(S10)로 순차 동작함을 특징으로 하는 우천시 자동차 충돌 방지 방법.A first step (S1) of determining whether an intermittent mode is provided after the rear warning light is automatically blinked when the collision prevention device is decelerated by a predetermined speed while driving a vehicle; A second step (S2) of determining whether a predetermined time has elapsed in the intermittent mode; A third step (S3) of operating the collision avoidance device by changing the safety distance setting to an intermittent mode safety distance when a predetermined time has elapsed; A fourth step S4 of determining whether or not the intermittent mode is the low speed mode in the intermittent mode determination step S1; A fifth step (S5) of determining whether a predetermined time has elapsed in the low speed mode; A sixth step (S6) of operating the collision avoidance device by changing the safety distance setting to a low speed mode safety distance when a predetermined time has elapsed; A seventh step S7 of determining whether or not the high speed mode is entered in the low speed mode determination step S4; An eighth step S8 of determining whether a predetermined time has elapsed in the high speed mode; A ninth step (S9) of operating the collision avoidance device by changing the safety distance setting to the high speed mode safety distance when a predetermined time has elapsed; When the predetermined time has not elapsed or in the non-high speed mode, the vehicle collision prevention method in rainy weather, characterized in that the sequential operation to the tenth step (S10) to operate the collision avoidance device by setting the clear weather safe distance as the standard.
KR1019930030579A 1993-12-29 1993-12-29 Car collision preventing method in case of rain KR960002581B1 (en)

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KR960002581B1 true KR960002581B1 (en) 1996-02-23

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