KR970044949A - Knock Signal Estimation Method by Magnetic State Technique and Its Apparatus - Google Patents

Knock Signal Estimation Method by Magnetic State Technique and Its Apparatus Download PDF

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Publication number
KR970044949A
KR970044949A KR1019950061938A KR19950061938A KR970044949A KR 970044949 A KR970044949 A KR 970044949A KR 1019950061938 A KR1019950061938 A KR 1019950061938A KR 19950061938 A KR19950061938 A KR 19950061938A KR 970044949 A KR970044949 A KR 970044949A
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KR
South Korea
Prior art keywords
knocking
signal
knock
estimating
signal output
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KR1019950061938A
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Korean (ko)
Inventor
박경혁
Original Assignee
전성원
현대자동차 주식회사
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Priority to KR1019950061938A priority Critical patent/KR970044949A/en
Publication of KR970044949A publication Critical patent/KR970044949A/en

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Abstract

본 발명은 자기 상관 기법에 의한 노크신호의 추정방법 및 그 장치에 관한 것으로서, 자동차 엔진에 발생하는 노킹을 감지하여, 그에 따른 전기적인 신호를 출력하는 노킹 감지부(10)와, 상기 노킹 감지부(10)로부터 출력되는 신호를 입력받아, 필터링을 하여 잡음을 제거하는 대역통과필터(Band Pass Filter, 20)와, 상기 대역통과필터(20)로부터 출력되는 신호를 입력받아, 디지탈 신호로 변환하여 출력하는 아날로그-디지탈 변환기(30)와, 상기 아날로그-디지탈 변환기(30)로부터 출력되는 신호를 입력받아, 노킹 상태의 추정값을 생성하여 출력함으로써, 노킹 제어를 할 수 있도록 하는 노킹 추정부(40)와, 상기 노킹 추정부(40)로부터 출력되는 신호를 입력받아 그에 따라 해당하는 노킹을 제어하는 노킹 제어장치(50)로 이루어져 있으며, 자동차 엔진의 노킹이 발생할 경우, 발생하는 노킹을 제어하는 데에 있어서, 자기 상관 기법에 의하여, 노킹의 정도를 추정하여 제어하도록 하는, 자기 상관 기법에 의한 노크신호의 추정방법 및 그 장치에 관한 것이다.The present invention relates to a knock signal estimating method and apparatus therefor by autocorrelation, and includes a knocking sensing unit 10 for detecting knocking occurring in an automobile engine and outputting an electrical signal according to the knocking sensing unit. A band pass filter 20 which receives a signal output from the signal 10, filters the noise, and receives a signal output from the band pass filter 20, converts the signal into a digital signal. A knock estimator 40 for receiving the analog-digital converter 30 to output and a signal output from the analog-digital converter 30, generating an estimated value of the knocking state, and outputting the estimated value. And a knocking control device 50 which receives a signal output from the knocking estimating unit 40 and controls a corresponding knocking accordingly, and knocking of an automobile engine occurs. In this case, the present invention relates to a method and apparatus for estimating a knock signal by an autocorrelation technique for controlling knocking generated by estimating the degree of knocking by an autocorrelation technique.

Description

자기 상관 기법에 의한 노크신호의 추정방법 및 그 장치Knock Signal Estimation Method by Autocorrelation Method and Its Apparatus

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

제1도는 이 발명의 실시예에 따른 자기 상관 기법에 의한 노크신호의 추정장치를 적용한 블록도이고,1 is a block diagram to which an apparatus for estimating a knock signal by an autocorrelation method according to an embodiment of the present invention is applied.

제2도는 이 발명의 실시예에 따른 자기 상관 기법에 의한 노크신호의 추정방법 동작 순서도이다.2 is a flowchart illustrating a method of estimating a knock signal by an autocorrelation method according to an exemplary embodiment of the present invention.

Claims (2)

자동차 엔진에 발생하는 노킹을 감지하여, 그에 따른 전기적인 신호를 출력하는 노킹 감지수단과; 상기 노킹 감지수단으로부터 출력되는 신호를 입력받아, 필터링을 하여 잡음을 제거하는 여파수단과; 상기 여파수단으로부터 출력되는 신호를 입력받아, 디지탈 신호로 변환하여 출력하는 아날로그-디지탈 변환수단과; 상기 아날로그-디지탈 변환기(30)로부터 출력되는 신호를 입력받아, 노킹 상태의 추정값을 생성하여 출력함으로써, 노킹 제어를 할 수 있도록 하는 노킹 추정수단으로 이루어져 있는 것을 특징으로 하는 자기 상관기법에 의한 노크신호의 추정장치.Knocking detecting means for detecting knocking occurring in an automobile engine and outputting an electrical signal accordingly; Filter means for receiving a signal output from the knock detection means and filtering to remove noise; An analog-digital conversion means for receiving a signal output from the filter means, converting the signal into a digital signal and outputting the digital signal; The knock signal by the autocorrelation method, comprising a knock estimating means for receiving a signal output from the analog-to-digital converter 30, generating an estimated value of the knocking state, and outputting the knocked control. Estimation device of. 노킹값을 판독하여 일정 기간 동안의 노킹값을 적분하는 단계와; 상기 단계 이후 일정 기간동안의 노킹값을 적분하여, 상기 단계에서 구한 노킹값을 컨벌루션하는 단계와; 상기 첫번째 단게에서 구한 노킹값과, 두번째 단계에서 구한 컨벌루션값을 곱하여 합성신호를 생성하는 단계와; 상기 단계에서 구한 합성신호를 판정하여, 노킹 상태를 추정하는 단계로 이루어져 있는 것을 특징으로 하는 자기 상관 기법에 의한 노크신호의 추정방법.Reading the knocking value and integrating the knocking value for a predetermined period; Integrating the knock value for a predetermined period after the step, and convolving the knock value obtained in the step; Generating a composite signal by multiplying the knocking value obtained in the first step and the convolution value obtained in the second step; And a step of estimating the knock state by determining the synthesized signal obtained in the above step.
KR1019950061938A 1995-12-28 1995-12-28 Knock Signal Estimation Method by Magnetic State Technique and Its Apparatus KR970044949A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950061938A KR970044949A (en) 1995-12-28 1995-12-28 Knock Signal Estimation Method by Magnetic State Technique and Its Apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950061938A KR970044949A (en) 1995-12-28 1995-12-28 Knock Signal Estimation Method by Magnetic State Technique and Its Apparatus

Publications (1)

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KR970044949A true KR970044949A (en) 1997-07-26

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KR1019950061938A KR970044949A (en) 1995-12-28 1995-12-28 Knock Signal Estimation Method by Magnetic State Technique and Its Apparatus

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