KR950017516A - Vehicle airbag control - Google Patents

Vehicle airbag control Download PDF

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Publication number
KR950017516A
KR950017516A KR1019930031964A KR930031964A KR950017516A KR 950017516 A KR950017516 A KR 950017516A KR 1019930031964 A KR1019930031964 A KR 1019930031964A KR 930031964 A KR930031964 A KR 930031964A KR 950017516 A KR950017516 A KR 950017516A
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KR
South Korea
Prior art keywords
signal
frequency
airbag
airbag control
reflected
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Application number
KR1019930031964A
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Korean (ko)
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KR950011589B1 (en
Inventor
이종대
이광렬
Original Assignee
김준성
사단법인 고등기술연구원
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Priority to KR1019930031964A priority Critical patent/KR950011589B1/en
Publication of KR950017516A publication Critical patent/KR950017516A/en
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Publication of KR950011589B1 publication Critical patent/KR950011589B1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

자동차의 에어백 시스템에서, 자동차 운전자의 움직임을 측정하여 에어백을 구동제어하기 위하여, 일정한 주파수를 가진 신호를 차량내부의 대상물체를 향해 발사하는 송파부(1)와; 상기 송파부(1)에서 발사되어 상기 대상물체에 반사된 신호를 수신하기 위한 수파부(8)와; 상기 반사된 신호의 왕복시간을 측정하기 위한 타이머(5)와; 상기 송파부(1)에서 발사된 신호의 주파수와 상기 수파부(8)에서 수신된 신호의 주파수와의 변화량을 측정하기 위한 주파수변화량측정수단(10, 11, 12, 13)과; 상기 반사된 신호의 왕복시간과 주파수의 변화량에 관한 정보를 처리하여 대상물체와의 거리 및 대상물체의 움직임 속도를 계산하고, 그 거리가 일정치 이하이면 경보 신호를 발생하고 속도가 임계치 이상일때 에어백 팽창개시신호를 발생시키는 마이크로프로세서(4)를 포함하는 에어백 제어장치를 제공한다.In the airbag system of a vehicle, a transmitter (1) for emitting a signal having a constant frequency toward the target object in the vehicle in order to drive the airbag by controlling the movement of the automobile driver; A wave receiver 8 for receiving a signal emitted from the wave receiver 1 and reflected on the object; A timer (5) for measuring a round trip time of the reflected signal; Frequency change amount measuring means (10, 11, 12, 13) for measuring an amount of change between the frequency of the signal emitted from the transmitting part (1) and the frequency of the signal received from the receiving part (8); The distance between the object and the moving speed of the object is calculated by processing information about the round trip time and the frequency change amount of the reflected signal.If the distance is less than a certain value, an alarm signal is generated. An airbag control device including a microprocessor (4) for generating an inflation start signal is provided.

Description

차량의 에어백 제어장치Vehicle airbag control

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 측정대상 물체에 발사되어 반사되는 초음파의 주파수와 물체의 속도와의 관계를 보이기위한 개략도,1 is a schematic diagram for showing the relationship between the frequency of ultrasonic waves emitted and reflected on an object to be measured and the speed of the object,

제2도는 본 발명 시스템의 개략적인 구성도.2 is a schematic diagram of a system of the present invention.

Claims (8)

일정 주파수를 가진 신호를 차량내부의 대상물체를 향해 발사하는 송파부(1)와; 상기 송파부(1)에서 발사되어 상기 대상물체에 반사된 신호를 수신하기 위한 수파부(8)와; 상기 반사된 신호의 왕복 시간을 측정하기 위한 타이머(5)와; 상기 송파부(1)에서 발사된 신호의 주파수와 상기 수파부(8)에서 수신된 신호의 주파수와의 변화량을 측정하기 위한 주파수변화량측정수단(10, 11, 12, 13)과; 상기 반사된 신호의 왕복시간과 주파수의 변화량에 관한 정보를 처리하여 대상물체와의 거리 및 대상물체의 움직임 속도를 계산하고, 그 거리가 일정치 이하이면 경보신호를 발생하고 속도가 임 치 이상일 때 에어백 팽창개시신호를 발생시키는 마이크로프로세서(4)를 포함하는 에어백 제어장치.A transmitter 1 for emitting a signal having a predetermined frequency toward an object inside the vehicle; A wave receiver 8 for receiving a signal emitted from the wave receiver 1 and reflected on the object; A timer (5) for measuring a round trip time of the reflected signal; Frequency change amount measuring means (10, 11, 12, 13) for measuring an amount of change between the frequency of the signal emitted from the transmitting part (1) and the frequency of the signal received from the receiving part (8); The distance between the object and the moving speed of the object is calculated by processing information about the round trip time and the frequency change of the reflected signal. When the distance is less than a certain value, an alarm signal is generated and the speed is greater than the threshold. An airbag control device comprising a microprocessor (4) for generating an airbag inflation start signal. 제1항에 있어서, 상기 차량내부의 대상물체는 운전자의 몸체인 것을 특징으로 하는 에어백 제어장치.The apparatus of claim 1, wherein the object inside the vehicle is a body of a driver. 제1항에 있어서, 상기 대상물체를 향해 발사되는 신호는 초음파인 것을 특징으로 하는 에어백 제어장치.The airbag control device of claim 1, wherein the signal emitted toward the object is ultrasonic. 제1항에 있어서, 상기 주파수변화량 측정수단은 입력전압의 크기에 비례하는 주파수를 가진 신호를 출력시키는 전압제어발진기(11)와, 상기 대상물체에 반사되어 상기 수파부(8)에서 수신된 신호와 상기 전압제어발진기(11)의 출력신호의 위상을 비교하여 그 차이값을 출력시키는 위상비교기(10)와, 상기 위상비교기(10)의 출력값을 현재 전압제어발진기(11)에 입력되는 전압에 더하여 주는 덧셈기(12)를 구비하여, 상기 수파부(8)에서 수신되어 상기 위상비교기(10)에 입력되는 신호의 주파수와 상기 전압제어발진기(11)에서 출력되어 상기 위상비교기(10)에 입력되는 신호의 주파수가 같은 상태가 되도록 상기 덧셈기(12)의 출력이 변화되는 것을 특징으로 하는 에어백 제어장치.2. The frequency change oscillator (11) according to claim 1, wherein the frequency change measuring means includes a voltage controlled oscillator (11) for outputting a signal having a frequency proportional to the magnitude of an input voltage, and a signal received by the receiver (8) after being reflected by the object. And a phase comparator 10 for comparing the phase of the output signal of the voltage controlled oscillator 11 and outputting a difference value, and outputting the output value of the phase comparator 10 to a voltage input to the current voltage controlled oscillator 11. In addition to the adder 12, the frequency of the signal received by the receiver 8 and input to the phase comparator 10 and output from the voltage controlled oscillator 11 is input to the phase comparator 10 Airbag control device characterized in that the output of the adder (12) is changed so that the frequency of the signal is the same. 제1항에 있어서, 상기 일정치 이하의 거리는 37.5ms이하인 것을 특징으로 하는 에어백 제어장치.The airbag control apparatus according to claim 1, wherein the distance below the predetermined value is 37.5 ms or less. 제1항에 있어서, 상기 임계치 이상의 속도는 12.5cm인 것을 특징으로 하는 에어백 제어장치.2. The airbag control device according to claim 1, wherein the speed above the threshold is 12.5 cm. 제1항에 있어서, 상기 마이크로프로세서(4)에서 발생된 상기 경보신호를 받아 운전자에게 경보를 발생해 주기 위한 경보수단(14)과, 상기 에어백 팽창개시신호에 따라 에어백을 팽창시켜 주는 에어백 구도시스템(15)을 더 구비하는 에어백 제어장치.The airbag composition system according to claim 1, further comprising: an alarm unit (14) for receiving an alarm signal generated by the microprocessor (4) and generating an alarm to a driver; and inflating an airbag according to the airbag inflation start signal. An airbag control device further comprising 15. 제7항에 있어서, 상기 경보수단은 발광다이오드(LED)인 것을 특징으로 하는 에어백 제어장치.8. The airbag control apparatus according to claim 7, wherein the alarm means is a light emitting diode (LED). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930031964A 1993-12-31 1993-12-31 Air gas control system KR950011589B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930031964A KR950011589B1 (en) 1993-12-31 1993-12-31 Air gas control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930031964A KR950011589B1 (en) 1993-12-31 1993-12-31 Air gas control system

Publications (2)

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KR950017516A true KR950017516A (en) 1995-07-20
KR950011589B1 KR950011589B1 (en) 1995-10-06

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KR1019930031964A KR950011589B1 (en) 1993-12-31 1993-12-31 Air gas control system

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