KR970044936A - Knock control circuit - Google Patents

Knock control circuit Download PDF

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Publication number
KR970044936A
KR970044936A KR1019950056268A KR19950056268A KR970044936A KR 970044936 A KR970044936 A KR 970044936A KR 1019950056268 A KR1019950056268 A KR 1019950056268A KR 19950056268 A KR19950056268 A KR 19950056268A KR 970044936 A KR970044936 A KR 970044936A
Authority
KR
South Korea
Prior art keywords
knock
signal output
outputting
signal
variable
Prior art date
Application number
KR1019950056268A
Other languages
Korean (ko)
Inventor
임종석
Original Assignee
전성원
현대자동차 주식회사
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 전성원, 현대자동차 주식회사 filed Critical 전성원
Priority to KR1019950056268A priority Critical patent/KR970044936A/en
Publication of KR970044936A publication Critical patent/KR970044936A/en

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  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Ignition Timing (AREA)

Abstract

본 발명은 노크 제어 시스템에 관한 것으로 특히, 엔진에서 발생되는 노크현상을 감지하여 노크 발생 주기에 관한 신호를 발생시키는 노크센서(10)와; 노크센서에서 발생되는 신호를 증폭하여 출력하는 증폭기(20)와; 입력되는 제어신호에 따라 필터링 주파수 대역을 가변시키며 가변되어진 필터링 주파수 대역에 따라 증폭기에서 출력되는 신호를 입력받아 노이즈를 없애는 가변 대역 필터(40)와; 가변 대역 필터에서 출력되는 신호를 정류(50)하여 출력하는 정류부와; 정류부에서 출력되는 신호를 소정시간 적분하여 출력하는 적분기(60)와; 적분기에서 출력되는 신호를 입력받아 A/D변환하여 노크상태를 감지하고 가변 대역 필터의 필터링 대역을 조정하며 그에 따라 점화시기를 조정하는 노크 제어부(70)로 구성되는 것을 특징으로 하는 노크 콘트롤 회로를 제공하면 종래 기술에서 구성 기기들이 외부 노이즈에 약하다는 문제점으로 인해 부정확한 자료에 의한 시스템 제어가 이루어지는 문제점을 해소할 수 있으며, 고정된 대역 필터가 아니므로 입력신호의 변화에 적절한 대응을 통해 보다 정교한 시스템 제어를 이룰 수 있다는 효과가 있다.The present invention relates to a knock control system, and in particular, a knock sensor (10) for detecting a knock phenomenon generated in the engine to generate a signal relating to the knock generation period; An amplifier 20 for amplifying and outputting a signal generated from the knock sensor; A variable band filter 40 for varying the filtering frequency band according to the input control signal and removing the noise by receiving a signal output from the amplifier according to the variable filtering frequency band; A rectifying unit rectifying and outputting a signal output from the variable band filter; An integrator 60 for integrating and outputting a signal output from the rectifier for a predetermined time; A knock control circuit comprising a knock control unit 70 configured to receive a signal output from an integrator and detect A / D conversion, adjust a filtering band of a variable band filter, and adjust an ignition timing accordingly. In this case, the problem of system control by inaccurate data can be solved due to the weakness of external devices in the prior art, and it is not a fixed band filter. The effect is that system control can be achieved.

(공개도면 제2도)(Open Drawing 2)

Description

노크 콘트롤 회로Knock control circuit

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

제2도는 본 발명에 따른 노크 콘트롤 회로의 블록 구성도,2 is a block diagram of a knock control circuit according to the present invention,

제3도는 본 발명에 따른 동작 순서도3 is a flowchart of operation according to the present invention.

Claims (1)

엔진에서 발생되는 노크현상을 감지하여 노크 발생 주기에 관한 신호를 발생시키는 노크센서와; 상기 노크센서에서 발생되는 신호를 증폭하여 출력하는 증폭기와; 입력되는 제어신호에 따라 필터링 주파수 대역을 가변시키며 가변되어진 필터링 주파수 대역에 따라 상기 증폭기에서 출력되는 신호를 입력받아 노이즈를 없애는 가변 대역 필터와; 상기 가변 대역 필터에서 출력되는 신호를 정류하여 출력하는 정류부와; 상기 정류부에서 출력되는 신호를 소정시간 적분하여 출력하는 적분기; 및 상기 적분기에서 출력되는 신호를 입력받아 A/D변환하여 노크상태를 감지하고 상기 가변 대역 필터의 필터링 대역을 조정하며 그에 따라 점화시기를 조정하는 노크 제어부로 구성되는 것을 특징으로 하는 노크 콘트롤 회로.A knock sensor for detecting a knock phenomenon generated in an engine and generating a signal relating to a knock generation period; An amplifier for amplifying and outputting a signal generated by the knock sensor; A variable band filter which varies a filtering frequency band according to an input control signal and removes noise by receiving a signal output from the amplifier according to the variable filtering frequency band; A rectifier for rectifying and outputting a signal output from the variable band filter; An integrator for integrating and outputting a signal output from the rectifier for a predetermined time; And a knock control unit configured to receive a signal output from the integrator, perform A / D conversion, detect a knock state, adjust a filtering band of the variable band filter, and adjust an ignition timing accordingly.
KR1019950056268A 1995-12-26 1995-12-26 Knock control circuit KR970044936A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950056268A KR970044936A (en) 1995-12-26 1995-12-26 Knock control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950056268A KR970044936A (en) 1995-12-26 1995-12-26 Knock control circuit

Publications (1)

Publication Number Publication Date
KR970044936A true KR970044936A (en) 1997-07-26

Family

ID=66617972

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950056268A KR970044936A (en) 1995-12-26 1995-12-26 Knock control circuit

Country Status (1)

Country Link
KR (1) KR970044936A (en)

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