KR970005811B1 - Safety distance display device for a car - Google Patents

Safety distance display device for a car Download PDF

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Publication number
KR970005811B1
KR970005811B1 KR1019940027503A KR19940027503A KR970005811B1 KR 970005811 B1 KR970005811 B1 KR 970005811B1 KR 1019940027503 A KR1019940027503 A KR 1019940027503A KR 19940027503 A KR19940027503 A KR 19940027503A KR 970005811 B1 KR970005811 B1 KR 970005811B1
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South Korea
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vehicle
signal
safety distance
sensor
distance
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KR1019940027503A
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Korean (ko)
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KR960015339A (en
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김태련
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대우자동차 주식회사
김태구
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Priority to KR1019940027503A priority Critical patent/KR970005811B1/en
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    • 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
    • B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
    • B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
    • B60W40/105—Speed
    • 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
    • B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
    • B60W40/12—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to parameters of the vehicle itself, e.g. tyre models
    • B60W40/13—Load or weight
    • 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
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
    • G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • 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
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
    • B60W2050/143—Alarm means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2302/00—Responses or measures related to driver conditions
    • B60Y2302/03—Actuating a signal or alarm device
    • 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

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Transportation (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Mechanical Engineering (AREA)
  • Mathematical Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Human Computer Interaction (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

a sensor means detecting the weight of the automobile, the distance covered and the distance with the preceding automobile; an amplifying means amplifying the signal detected from the sensor means to a level; an A/D converting means converting the amplified analog detection signal to a digital signal; a control means controlling the whole operation for the detection of safety distance; a memory means storing program data to calculate safety distance according to the signal detected by the sensor means; a display means displaying a signal for the acquisition of safety distance according to the signal applied from the control means; and a selection switch means switching the selection of safety distance detection mode.

Description

자동차의 안전거리 표시장치Safety distance indicator of car

제1도는 본 발명에 따른 자동차의 안전거리 표시장치 구성 블럭도.1 is a block diagram of a safety distance display device of a vehicle according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 제1센서부 20 : 제2센서부10: first sensor unit 20: second sensor unit

30 : 제3센서부 40 : 증폭부30: third sensor unit 40: amplification unit

50 : A/D 변환기 60 : 제어부50: A / D converter 60: control unit

70 : 메모리부 80 : 표시부70 memory unit 80 display unit

90 : 선택스위치90: selection switch

본 발명은 자동차의 지시장치에 관한 것으로, 특히 자동차의 주행속도와 중량 및 도로조건에 따라 선행되는 자동차와의 안전거리를 검출하여 운전자에게 경고 및 지시하도록 한 자동차의 안전거리 표시장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indication device for a vehicle, and more particularly, to a safety distance display apparatus for a vehicle, which detects and warns a driver of a safety distance with a vehicle ahead of time according to a driving speed, weight, and road conditions of the vehicle.

일반적으로 자동차가 주행하고 있는 상태에서는 동력의 전달을 차단하여도 자동차는 정지하지 않고 관성에 의하여 어느 정도의 거리를 주행하게 되므로 주행하는 자동차의 속도를 감속시키거나 정지시킬때 관성에너지를 흠수하는 제동장치가 필요한데, 이 제동장치는 마찰작용을 통하여 운동에너지를 열에너지로 변환한후 마찰력을 방출시켜 제동력을 발생시킨다.In general, when the vehicle is running, the car does not stop even if the power transmission is interrupted, but the vehicle is driven a certain distance by inertia. Therefore, the braking which damages the inertia energy when decelerating or stopping the speed of the driving car An apparatus is required, which converts kinetic energy into thermal energy through friction, and then releases friction to generate braking force.

현재 자동차의 주행에 있어서 선행되는 자동차와 후속 주행하는 자동차의 안전거리를 후속 주행하는 자동차 운전자의 주관적인 판단에 따라 제동장치 및 가속장치를 이용하여 확보하고 있으나, 이는 주행중인 자동차의 중량과 주행속도 및 도로의 조건을 고려하지 않은 운전자 개인의 주관적인 판단에 의존하는 관계로 고속도로 등 주행조건이 양호한 상태에서는 속도감의 상실로 인하여 선행하는 자동차와 추돌을 일으키는 문제점이 있으며, 도로의 조건이 매우 불량한 비포장 도로나 우천시 및 결빙된 도로 상황에서는 연쇄적인 추돌을 일으키는 문제점이 있었다.At present, the safety distance between the preceding vehicle and the subsequent driving vehicle is secured by using the braking device and the acceleration device according to the subjective judgment of the driver of the subsequent vehicle. As it depends on the subjective judgment of the driver who does not consider the condition of the road, there is a problem of causing the collision with the preceding car due to the loss of speed in the good driving conditions such as the highway. In rainy weather and frozen road conditions, there was a problem of causing a serial collision.

본 발명은 전술한 문제점을 감안하여 안출한 것으로 그 목적은 주행되는 자동차의 중량과 주행 속도 및 도로의 조건을 고려하여 선행되는 자동차와의 안전거리를 검출한 후 인스트루먼트 판넬의 경고등 또는 소정의 음향출력수단을 통해 운전자에게 경고 및 지시하여 선행되는 자동차와의 추돌을 미연에 방지하여 인명 및 재산피해를 배제하도록 한 것이다.SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and its object is to detect a safety distance from a preceding vehicle in consideration of the weight of the vehicle being driven, the driving speed, and the conditions of the road, and then to warn or output a predetermined sound output of the instrument panel. By means of warning and instructing the driver through the means, the collision with the preceding vehicle is prevented beforehand to prevent the loss of life and property.

이와 같은 목적을 달성하기 위한 본 발명의 특징은 자동차에 있어서, 주행되는 자동차의 중량과 주행속도 및 선행되는 자동차와의 거리를 검출하는 센서수단과, 상기 센서수단으로부터 검출되어 인가되는 신호를 소정의 레벨로 증폭하는 증폭수단과, 상기 증폭되어 인가되는 아날로그 검출신호를 다지탈신호로 변환시키는 A/D 변환 수단과, 안전거리 검출에 대한 전반적인 동작을 제어하는 제어수단과, 상기 센서수단으로 검출된 신호에 따라 안전거리 산출을 위한 프로그램 데이타가 저장되는 메모리 수단과, 상기 제어수단으로부터 인가되는 신호에 따라 안전거리 확보여부에 대한 신호를 디스플레이 하는 표시수단 및, 안전거리 검출모드 선택여부를 절환하는 선택스위치 수단을 구비하는 것을 특징으로 하는 자동차의 안전거리 표시장치를 제공한다.A feature of the present invention for achieving the above object is that in a vehicle, the sensor means for detecting the weight and traveling speed of the vehicle being driven and the distance between the preceding vehicle, and a signal detected and applied from the sensor means Amplification means for amplifying to a level, A / D conversion means for converting the amplified and applied analog detection signal into a digital signal, control means for controlling the overall operation for safety distance detection, and the sensor means Memory means for storing the program data for calculating the safety distance in accordance with the signal, Display means for displaying a signal for securing the safety distance in accordance with the signal applied from the control means, and the selection to switch the safety distance detection mode selection Providing a safety distance display device for a vehicle, characterized in that it comprises a switch means .

이하 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

제1도는 본 발명에 따른 자동차의 안전거리 표시장치 구성 블럭도이다.1 is a block diagram of a safety distance display device of a vehicle according to the present invention.

도면에서 알 수 있는 바와 같이 본 발명은 제1센서부(10), 제2센서부(20), 제3센서부(30), 증폭부(40), A/D 변환기(50), 제어부(60), 메모리부(70), 표시부(80) 및 선택스위치(90)로 구성되는데, 제1센서부(10)는 자동차의 그릴(Grille) 소정위치에 설치되어 적외선 또는 초음파를 통해 선행되는 자동차와의 거리를 검출한다.As can be seen in the drawing, the present invention includes a first sensor unit 10, a second sensor unit 20, a third sensor unit 30, an amplifier unit 40, an A / D converter 50, a control unit ( 60, the memory unit 70, the display unit 80, and the selector switch 90, wherein the first sensor unit 10 is installed at a predetermined position of the grille of the vehicle and is preceded by infrared rays or ultrasonic waves. Detect distance to

제2센서부(20)는 자동차의 충격을 완화하는 전륜 및 후륜의 쇽업소오버(Shock Absorber) 소정위치에 설치되어 주행되는 자동차의 중량(하중)을 검출한다. 제3센서부(30)는 자동차의 트랜스밋션(Transmission)에 설치되어 변속되는 기어의 배열과 회전속도에 따라 자동차의 주행속도를 검출한다. 증폭부(40)는 제1센서부(10)와 제2센서부(20) 및 제3센서부(30)로부터 인가되는 검출된 신호를 소정의 레벨로 증폭한다. A/D 변환기(50)는 증폭되어 인가되는 아날로그 검출신호를 디지탈신호로 변환시켜 출력한다. 제어부(60)는 주행되는 자동차의 안전거리검출에 대한 전반적인 동작을 제어한다. 메모리부(70)는 주행되는 자동차의 중량과 주행속도에 따라 안전거리산출에 대한 소정의 데이타와 전반적인 프로그램 데이타가 저장된다. 선택스위치(90)는 안전거리 검출모드 선택접점과 일반주행모드 선택접점으로 이루어지며 운전자의 선택에 소정의 모드를 설정한다. 표시부(80)는 운전자가 쉽게 인지할 수 있는 인스트루먼트 판넬에 구비되며 제어부(60)로부터 인가되는 소정의 제어신호에 따라 점등 및 소등된다.The second sensor unit 20 detects the weight (load) of the vehicle that is installed at predetermined positions of the shock absorbers of the front wheels and the rear wheels to alleviate the impact of the vehicle. The third sensor unit 30 is installed in the transmission of the vehicle and detects the traveling speed of the vehicle according to the arrangement and rotational speed of the gear that is shifted. The amplifier 40 amplifies the detected signal applied from the first sensor unit 10, the second sensor unit 20, and the third sensor unit 30 to a predetermined level. The A / D converter 50 converts the amplified analog detection signal into a digital signal and outputs the digital signal. The controller 60 controls the overall operation for detecting the safety distance of the vehicle being driven. The memory unit 70 stores predetermined data and overall program data on safety distance calculation according to the weight and driving speed of the vehicle being driven. The selection switch 90 includes a safety distance detection mode selection contact point and a general driving mode selection contact point, and sets a predetermined mode to the driver's selection. The display unit 80 is provided in an instrument panel that can be easily recognized by the driver and is turned on and off in accordance with a predetermined control signal applied from the controller 60.

전술한 바와 같은 기능을 갖도록 이루어지는 본 발명의 동작을 설명하면 다음과 같다.Referring to the operation of the present invention made to have the function as described above are as follows.

도로조건이 양호한 고속도로등을 주행하는 자동차의 경우 운전자가 선행되는 자동차와의 안전거리를 확보하고자 인스트루먼트 판넬의 소정위치에 설치된 선택스위치(90)접점을 안전거리 검출모드로 선택하면 제어부(60)는 인가되는 키신호를 감지하여 안전거리 검출모드를 설정한다.In the case of a car driving on a highway with good road conditions, the controller 60 selects the contact point of the selector switch 90 installed at a predetermined position of the instrument panel as a safe distance detection mode to secure a safe distance from the preceding vehicle. Sets the safe distance detection mode by detecting the applied key signal.

이후 전면의 그릴에 장착된 제1센서부(10)는 적외선 또는 초음파를 통해 선행되는 자동차와의 거리를 검출하여 검출된 소정의 신호를 증폭부(40)측에 인가한다. 증폭부(40)는 인가되는 신호를 소정의 레벨로 증폭한 후 A/D 변환기(50)를 통해 디지탈 신호로 변환시켜 제어부(40)는 인가되는 신호를 소정의 레벨로 증폭한 후 A/D 변환기(50)를 통해 디지탈 신호로 변환시켜 제어부(60)측에 인가하면 제어부(60)는 인가되는 거리값을 소정의 버퍼에 일시 저장한다.Thereafter, the first sensor unit 10 mounted on the grill at the front side detects the distance to the preceding vehicle through infrared rays or ultrasonic waves and applies the detected signal to the amplifier 40. The amplifier 40 amplifies the applied signal to a predetermined level and converts it into a digital signal through the A / D converter 50. The controller 40 amplifies the applied signal to a predetermined level and then A / D. When converted into a digital signal through the converter 50 and applied to the control unit 60 side, the control unit 60 temporarily stores the applied distance value in a predetermined buffer.

이때 제2센서부(20)는 주행되는 자동차의 중량을 검출하여 증폭부(40)를 통해 소정의 레벨로 증폭한후 A/D 변환기(50)를 통해 디지탈 신호로 변환하여 제어부(60)측에 인가하면 제어부(60)는 인가되는 중량값을 소정의 버퍼에 일시저장한다. 또한 제3센서부(30)는 변속되는 기어의 배열과 회전속도에 따라 자동차의 주행속도를 검출한 후 증폭부(40)를 통해 소정의 레벨로 증폭하여 A/D 변환기(50)를 통해 디지탈 신호로 변환시켜 제어부(60)측에 인가하면 제어부(60)는 인가되는 자동차의 주행속도와 중량 및 앞차와의 거리를 메모리부(70)에 설정된 데이타에 따라 산출한 후 현재 주행중인 자동차가 선행되는 자동차와 안전거리가 확보되었는지의 여부를 판단한다.At this time, the second sensor unit 20 detects the weight of the vehicle being driven, amplifies it to a predetermined level through the amplifier 40, and converts the digital signal through the A / D converter 50 to control the controller 60. When applied to the control unit 60 temporarily stores the applied weight value in a predetermined buffer. In addition, the third sensor unit 30 detects the driving speed of the vehicle according to the arrangement and rotation speed of the gear shifted, and then amplifies to a predetermined level through the amplifying unit 40 to digital through the A / D converter 50. When the signal is converted into a signal and applied to the control unit 60, the control unit 60 calculates the driving speed, weight, and distance between the vehicle to be applied according to the data set in the memory unit 70. It is determined whether a safe distance from the vehicle is secured.

이때 주행되는 자동차가 선행되는 자동차와 안전거리가 확보된 상태이면 제어부(60)는 로우상태의 제어신호를 표시부(80)측에 출력하고, 주행되는 자동차가 선행되는 자동차와 안전거리가 확보되지 않는 상태로 판단되면 제어부(60)는 하이상태의 제어신호를 표시부(80)측에 출력하여 표시부(80)의 소정램프를 점등하거나 벨을 통해 소정의 경고음을 발생시켜 운전자에게 경고 및 지시하여 준다. 따라서 운전자는 제동장치를 이용하여 선행되는 자동차와 충분한 안전거리를 확보한다.At this time, if a safe distance is secured with the preceding vehicle, the controller 60 outputs a control signal in a low state to the display unit 80, and the safe distance with the preceding vehicle is not secured. If it is determined that the state of the control unit 60 outputs a high state control signal to the display unit 80 side to turn on a predetermined lamp of the display unit 80 or generates a predetermined warning sound through the bell to warn and instruct the driver. Thus, the driver uses a braking device to secure a sufficient safety distance from the preceding vehicle.

또한 안전거리 확보가 필요치 않은 병목 및 정체구간에서 운전자는 선택스위치(90)의 접점을 일반모드로 선택하여 안전거리 확보검출을 실행하지 않는다.In addition, in the bottleneck and congestion section that does not need to secure the safety distance, the driver does not execute the safety distance security detection by selecting the contact of the selector switch 90 in the normal mode.

이상에서 설명한 바와 같이 본 발명은 주행하는 자동차의 속도와 중량 및 도로조건에 따라 선행되는 자동차와의 안전거리를 검출하여 운전자에게 경고 및 지시하므로 추돌의 위험성이 배재되어 운행에 신뢰성을 제공한다.As described above, the present invention detects the safety distance with the preceding vehicle according to the speed and weight of the vehicle and the road conditions, and warns and instructs the driver so that the risk of collision is excluded, thereby providing reliability in driving.

Claims (2)

자동차에 있어서, 주행되는 자동차의 중량과 주행속도 및 선행되는 자동차와의 거리를 검출하는 센서수단과, 상기 센서수단으로부터 검출되어 인가되는 신호를 소정의 레벨로 증폭하는 증폭수단과, 상기 증폭되어 인가되는 아날로그 검출신호를 디지탈신호로 변환시키는 A/D 변환 수단과, 안전거리 검출에 대한 전반적인 동작을 제어하는 제어수단과, 상기 센서수단으로 검출된 신호에 따라 안전거리 산출을 위한 프로그램 데이타가 저장되는 메모리 수단과 상기 센서수단으로부터 인가되는 신호에 따라 안전거리 확보여부에 대한 신호를 디스플레이 하는 표시수단 및, 안전거리 검출모드 선택여부를 절환하는 선택스위치 수단을 구비하는 것을특징으로 하는 자동차의 안전거리 표시장치.In an automobile, sensor means for detecting the weight and traveling speed of a vehicle to be driven and a distance from a preceding vehicle, amplifying means for amplifying a signal detected and applied by the sensor means to a predetermined level, and amplified and applied A / D conversion means for converting the analog detection signal to a digital signal, control means for controlling the overall operation for the safety distance detection, and program data for calculating the safety distance according to the signal detected by the sensor means is stored Safety distance display of a vehicle, characterized by comprising a display means for displaying a signal for securing the safety distance according to the signal applied from the memory means and the sensor means, and a selection switch means for switching the selection of the safe distance detection mode selection Device. 제1항에 있어서, 상기 센서수단은 자동차의 그릴 소정위치에 설치되어 적외선 또는 초음파를 이용하여 선행되는 자동차의 중량을 검출하는 제1센서부와, 전륜 및 후륜의 쇽업소오버 소정위치에 설치되어 주행되는 자동차의 중량을 검출하는 제2센서부 및, 트랜스밋션의 소정위치에 설치되어 변속되는 기어 배열 및 회전속도를 통해 자동차의 주행속도를 검출하는 제3센서부로 이루어지는 것을 특징으로 하는 자동차의 안전거리 표시장치.The method of claim 1, wherein the sensor means is installed at a predetermined position of the grill of the vehicle, the first sensor unit for detecting the weight of the preceding vehicle by using infrared or ultrasonic waves, and the shock-absorbing predetermined positions of the front and rear wheels Safety of the vehicle, comprising a second sensor unit for detecting the weight of the vehicle driving, and a third sensor unit for detecting the traveling speed of the vehicle through the gear arrangement and the rotational speed is installed at a predetermined position of the transmission Distance display.
KR1019940027503A 1994-10-26 1994-10-26 Safety distance display device for a car KR970005811B1 (en)

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KR970005811B1 true KR970005811B1 (en) 1997-04-21

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