KR930007746A - Electronic control circuit of automotive power steering - Google Patents

Electronic control circuit of automotive power steering Download PDF

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Publication number
KR930007746A
KR930007746A KR1019910017410A KR910017410A KR930007746A KR 930007746 A KR930007746 A KR 930007746A KR 1019910017410 A KR1019910017410 A KR 1019910017410A KR 910017410 A KR910017410 A KR 910017410A KR 930007746 A KR930007746 A KR 930007746A
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KR
South Korea
Prior art keywords
vehicle speed
signal
voltage
resistor
solenoid
Prior art date
Application number
KR1019910017410A
Other languages
Korean (ko)
Inventor
김제덕
Original Assignee
정몽원
만도기계 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 정몽원, 만도기계 주식회사 filed Critical 정몽원
Priority to KR1019910017410A priority Critical patent/KR930007746A/en
Publication of KR930007746A publication Critical patent/KR930007746A/en

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  • Steering Control In Accordance With Driving Conditions (AREA)

Abstract

본발명은 자동차의 차속에 따라 핸들의 조향력을 적절히 제어할수 있는 파워스티어링에 있어서, 차속의 불균형 발생시나, 내외부적인 원인에 인한 오동작으로 이상전류 또는 과전류발생시 이를 검출하고 이 검출된 신호를 제어하여 파워스티어링을 제어함으로써 상기 차속의 불균형 또는 이상전류로 인하여 핸들의 조형력제어가 저하되는 것을 방지시킴은 물론 특히 고속주행시 조향력저하로 인하여 야기될수 있는 불안정성을 해소할 수 있도록 한것임.The present invention is a power steering that can properly control the steering force of the steering wheel according to the vehicle speed of the vehicle, and detects when abnormal current or overcurrent occurs due to unbalance of the vehicle speed or malfunction due to internal and external causes, and controls the detected signal to control the power. By controlling the steering, it is possible to prevent the deterioration of the molding force control of the steering wheel due to the imbalance or abnormal current of the vehicle, as well as to solve the instability which may be caused by the steering force deterioration, especially at high speeds.

Description

자동차용 파워스티어링 전자제어회로Automotive Power Steering Electronic Control Circuit

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

제1도는 본 발명에 이용되는 파워스티어링의 개략도,1 is a schematic diagram of the power steering used in the present invention,

제2도는 제1도의 A-A선 확대단면도,2 is an enlarged cross-sectional view taken along the line A-A of FIG.

제3도는 본 발명 파워스티어링의 전자제어회로의 블럭도.3 is a block diagram of an electronic control circuit of the power steering of the present invention.

Claims (1)

엔진(ENG)의 회전수와 차속을 검출하고, 이 검출된 차속에 따라 비례적으로 작동하면서 솔레노이드밸브(62)로 파워스티어링(20)에 공급되는 유압을 제어하여 핸들의 조향력을 적절히 제어하도록된 파워스티어링의 전자제어장치에 있어서, 속도메타(60)로부터 차속을 검출하고 검출된 신호에 비계하는 직류전압 신호로 변환시키는 저항(R1), 다이오드(D1)와, 저역통과필터(LPF1), 출력전압크기를 결정하는 저항(R3), 콘덴서(C2)와, 슈미트트리거(IC1), 차속전압변환부(A)와, 연산증폭기(OP1), 다이오드(D2), 저항(R3)(R4)로 구성된 상한치 설정부(B)와, 차속전압변환신호에 솔레노이드구동출력신호를 피드백시켜 오차를 보상하는 저항(R6∼R9), 가산기(OP2)로 구성된 보상회로(C)로 구성된 차속전압변환 검출회로(가)와, 상기 차속전압변환검출회고(가)로부터 차속전압과 비교될 삼각파를 발생시키는 삼각판발생부(나)와, 사익 차속전압과 삼각파를 비교하여 솔레노이드 구동신호를 출력하는 비교부(다)와, 상기 비교부(다)로부터 신호를 받아 솔레노이드(SOL)를 온,오프 구동하는 솔레노이드구동부(라)와, 상기 솔레노이드구동부(라)의 구동출력신호를 상기 비교부(다)에 피드백시키는 저항(R33∼R38), 다이오드(D7), 콘덴서(C12), 차동증촉기(OP3)로 구성된 피드백회로부(자)와, 엔진(ENG)의 회전수를 검출하여 전압으로 변환출력시키는 저항(R15), 다이오드(D8), 저역통과필터(LPF2), 슈미트트리거(IC2), 엔진회전수 전압변환부(D)와, 출력전압크기를 결정하는 저항(R18), 콘덴서(C14)와, 비교기(comp2), 저항(R19∼R22), 다이오드(D9)로 구성된 엔진회전수 검출회로부(마)와, 상기 차속전압변환검출회로(가)로부터 이상차속을 검출하는 연산증폭기(OP4)(OP5)로 구성되는 차속이상검출부(E)와 엔진회전수검출회로부(마)로부터 엔진회전수검출신호전압과를 부논라합하는 노아게이트(NOR3)로 구성하는 차속엔진호전수검출회로부(바)와, 사익 솔레노이드구동부(라)의 솔레노이드과전류를 연산증폭기(OP6)로 검출하고, 노아게이트(NOR2)로 오동작을 검출하는 과전류검출부(F)와, 차속의 불균형으로 이상전류발생시, 차속전압변환검출회로(가)로부터 연산증폭기(OP7)(OP8)로 검출하고 노아게이트(NOR1)로 이상전류를 검출하는 이상전류검출부(사)와, 상기 차속엔진회전수검출회로(바)와 이상전류검출부(사)의 출력신호에 따라 솔레노이드구동부(라)의 전원을 차단하고, 표시램프(LAMP)로 표시하는 릴레이구동부(아)로 구성하여서된 것을 특징으로 하는 자동차용파워스티어링의 전자제어회로.It detects the rotational speed and the vehicle speed of the engine ENG, and operates proportionally according to the detected vehicle speed, controlling the hydraulic pressure supplied to the power steering 20 by the solenoid valve 62 to appropriately control the steering force of the handle. In an electronic control device for power steering, a resistor R1, a diode D1, a low pass filter LPF1, and an output for detecting a vehicle speed from the speed meter 60 and converting it into a DC voltage signal that is scaffolded on the detected signal With resistor R3, capacitor C2, Schmitt trigger IC1, vehicle speed voltage converter A, operational amplifier OP1, diode D2, resistor R3, R4 to determine the voltage magnitude A vehicle speed voltage conversion detection circuit comprising an upper limit value setting section B configured, a resistor R6 to R9 for feeding back a solenoid drive output signal to the vehicle speed voltage conversion signal, and a compensation circuit C including an adder OP2. (A) and the comparison with the vehicle speed voltage from the vehicle speed voltage conversion detection recall (A). A triangular plate generator (b) for generating a triangular wave to be generated, a comparator (c) for outputting a solenoid drive signal by comparing a triangular wave with a wing vehicle speed voltage, and a solenoid (SOL) receiving a signal from the comparator (c). Solenoid drive unit (D) for driving on and off, resistors (R33 to R38), diode (D7), capacitor (C12), and differential for feeding back the drive output signal of the solenoid drive unit (D) to the comparison unit (C) A feedback circuit section consisting of a steam generator OP3, a resistor R15 which detects the rotational speed of the engine ENG and converts it into voltage, a diode D8, a low pass filter LPF2, and a Schmitt trigger IC2. ), An engine speed consisting of an engine speed voltage converter (D), a resistor (R18), a capacitor (C14), a comparator (comp2), a resistor (R19 to R22), and a diode (D9) for determining an output voltage magnitude. Operation amplifier OP4 for detecting abnormal vehicle speed from the number detection circuit section E and the vehicle speed voltage conversion detecting circuit The vehicle speed engine signal detection circuit section (bar) comprising a vehicle speed abnormality detecting section (E) composed of P5) and a noar gate (NOR3) that negatively combines the engine speed detection signal voltage with the engine speed detection circuit section (E); The overcurrent detector (F) detects the solenoid overcurrent of the blade solenoid driver (D) with the operational amplifier (OP6), and detects a malfunction with the noah gate (NOR2), and the vehicle speed voltage conversion detection circuit when an abnormal current occurs due to an unbalance of the vehicle speed. (A) The abnormal current detection unit (A) for detecting with the operational amplifier OP7 (OP8) and detecting the abnormal current with the NOA gate (NOR1), the vehicle engine speed detection circuit (bar) and the abnormal current detection unit ( An electronic control circuit for a power steering for a vehicle, characterized in that it comprises a relay driving unit (h) which cuts off the power supply of the solenoid driving unit (D) in accordance with the output signal). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910017410A 1991-10-04 1991-10-04 Electronic control circuit of automotive power steering KR930007746A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910017410A KR930007746A (en) 1991-10-04 1991-10-04 Electronic control circuit of automotive power steering

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910017410A KR930007746A (en) 1991-10-04 1991-10-04 Electronic control circuit of automotive power steering

Publications (1)

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KR930007746A true KR930007746A (en) 1993-05-20

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Application Number Title Priority Date Filing Date
KR1019910017410A KR930007746A (en) 1991-10-04 1991-10-04 Electronic control circuit of automotive power steering

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100522833B1 (en) * 2000-12-22 2005-10-19 주식회사 만도 Electric way power steering for car use
KR100821787B1 (en) * 2006-07-04 2008-04-11 현대자동차주식회사 Fuel cell vehicles system control apparatus and method whichof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100522833B1 (en) * 2000-12-22 2005-10-19 주식회사 만도 Electric way power steering for car use
KR100821787B1 (en) * 2006-07-04 2008-04-11 현대자동차주식회사 Fuel cell vehicles system control apparatus and method whichof

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