KR100807997B1 - A ground open monitoring apparatus of electronic control unit - Google Patents

A ground open monitoring apparatus of electronic control unit Download PDF

Info

Publication number
KR100807997B1
KR100807997B1 KR1020040016005A KR20040016005A KR100807997B1 KR 100807997 B1 KR100807997 B1 KR 100807997B1 KR 1020040016005 A KR1020040016005 A KR 1020040016005A KR 20040016005 A KR20040016005 A KR 20040016005A KR 100807997 B1 KR100807997 B1 KR 100807997B1
Authority
KR
South Korea
Prior art keywords
ground
electronic control
control unit
resistor
pull
Prior art date
Application number
KR1020040016005A
Other languages
Korean (ko)
Other versions
KR20050090766A (en
Inventor
이형욱
Original Assignee
주식회사 만도
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 주식회사 만도 filed Critical 주식회사 만도
Priority to KR1020040016005A priority Critical patent/KR100807997B1/en
Publication of KR20050090766A publication Critical patent/KR20050090766A/en
Application granted granted Critical
Publication of KR100807997B1 publication Critical patent/KR100807997B1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02—Cages, i.e. cars
    • B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
    • B66B11/0233—Lighting systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Regulating Braking Force (AREA)

Abstract

본 발명은 전자제어장치의 접지오픈 감지장치에 관한 것으로, 본 발명의 목적은 전자제어장치의 접지오픈을 모니터 하는 전자제어장치의 접지오픈 감지장치를 제공함에 있다.The present invention relates to a ground open detection device of an electronic control device, and an object of the present invention is to provide a ground open detection device of an electronic control device for monitoring the ground open of the electronic control device.

이를 위해 본 발명은 정전압원, 상기 정전압원에 연결된 풀업저항, 상기 풀업저항과 접지 사이에 연결된 제어부를 포함하되, 상기 전자제어장치는 상기 풀업저항과 접지 사이의 전압을 감지하여 접지 오픈여부를 모니터링한다.To this end, the present invention includes a constant voltage source, a pull-up resistor connected to the constant voltage source, and a control unit connected between the pull-up resistor and the ground, wherein the electronic controller detects a voltage between the pull-up resistor and the ground to monitor whether the ground is open. do.

Description

전자제어장치의 접지오픈 감지장치{A ground open monitoring apparatus of electronic control unit} A ground open monitoring apparatus of electronic control unit             

도 1은 본 발명의 일실시예에 따른 전자제어장치의 접지오픈 감지장치를 도시한 회로도이다.
1 is a circuit diagram illustrating a ground-open sensing device of an electronic control apparatus according to an embodiment of the present invention.

*도면의 주요 기능에 대한 부호의 설명** Description of the symbols for the main functions of the drawings *

10:정전압원 11:풀업저항10: constant voltage source 11: pull-up resistor

12:접지 13:제어부                12: ground 13: control unit

14:필터 15:FET                14: filter 15: FET

16:솔레노이드 밸브 17:배터리

16: Solenoid valve 17: Battery

본 발명은 전자제어장치의 접지오픈 감지장치에 관한 것으로, 더욱 상세하게 는 전자제어장치의 접지가 오픈되었는지 감지할 수 있는 전자제어장치의 접지오픈 감지장치에 관한 것이다.The present invention relates to a ground open sensing device of an electronic control device, and more particularly, to a ground open sensing device of an electronic control device capable of detecting whether the ground of the electronic control device is opened.

일반적으로, 차량에는 각 장치들의 움직임을 전자적으로 제어하기 위한 전자제어장치가 구비된다. 본 발명이 적용되는 전자제어장치 중의 하나인 ABS(Anti-lock brake system)의 전자제어장치는 ABS의 동작을 제어하는 메인마이컴과, 메인마이컴의 기능을 보조하는 보조마이컴과, 메인마이컴 및 보조마이컴에 일정한 전력을 공급하기 위한 전압조정기와, 휠속도센서와 메인마이컴을 상호접속시키는 휠속도센서 인터페이스와, 휠속도센서에 오류가 있는지를 감지하는 휠속도센서 오류모니터 등을 구비한다. 또한, 본 발명이 적용되는 전자제어장치는 단순히 마이컴만으로 구현될 수도 있다.In general, a vehicle is provided with an electronic control device for electronically controlling the movement of each device. The electronic control device of the anti-lock brake system (ABS), which is one of the electronic control devices to which the present invention is applied, includes a main microcomputer for controlling the operation of the ABS, an auxiliary microcomputer for assisting the functions of the main microcom, and a main microcomputer and a submicrocom And a voltage regulator for supplying constant power to the wheel, a wheel speed sensor interface interconnecting the wheel speed sensor and the main microcomputer, and a wheel speed sensor error monitor for detecting an error in the wheel speed sensor. In addition, the electronic control apparatus to which the present invention is applied may be simply implemented by a microcomputer.

이러한 구성요소를 가지는 ABS의 전자제어장치는 휠에 장착된 휠속도센서와 브레이크 스위치에서 입력신호를 받아서 각 휠의 제동상태를 감지하고 모듈레이터에 신호를 보내 브레이크압력을 조절한다. 따라서 ABS의 전자제어장치는 ABS제어에 있어 핵심이 되는 중요한 구성요소이며, 다른 전자제어장치 또한 차량의 제어에 있어 중요한 역할을 한다.ABS electronic control device having such a component receives input signals from wheel speed sensors and brake switches mounted on the wheels, detects the braking state of each wheel, and sends a signal to the modulator to adjust the brake pressure. Therefore, the electronic control device of ABS is an important component that is the core of the ABS control, and other electronic control devices also play an important role in the control of the vehicle.

그러나 이와같은 종래의 전자제어장치는 접지(Ground)와 전자제어장치의 접촉이 불량한 경우 전자제어장치의 접지레벨이 불안정해져 잘못된 제어명령이 발생되는 문제점이 있었다.However, such a conventional electronic controller has a problem in that an incorrect control command is generated when the ground level of the electronic controller is unstable when the contact between the ground and the electronic controller is poor.

본 발명은 전술한 문제점을 해결하기 위한 것으로, 본 발명의 목적은 전자제 어장치의 접지오픈을 모니터 하는 전자제어장치의 접지오픈 감지장치를 제공함에 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a ground open detection device of an electronic control device for monitoring the ground open of the electronic control device.

전술한 목적을 달성하기 위한 본 발명은 정전압원, 상기 정전압원에 연결된 풀업저항, 상기 풀업저항과 접지 사이에 연결된 제어부를 포함하되, 상기 제어부는 상기 풀업저항과 접지 사이의 전압을 감지하여 접지 오픈여부를 모니터링하는 것을 특징으로 한다.The present invention for achieving the above object includes a constant voltage source, a pull-up resistor connected to the constant voltage source, the control unit connected between the pull-up resistor and the ground, the control unit senses the voltage between the pull-up resistor and ground open ground It is characterized by monitoring whether or not.

또한 상기 전자제어장치는 상기 풀업저항과 상기 접지 사이의 전압이 상기 정전압원의 전압과 같은 경우 접지오픈으로 판단하는 것을 특징으로 한다.In addition, the electronic control device is characterized in that the ground open when the voltage between the pull-up resistor and the ground is equal to the voltage of the constant voltage source.

또한 상기 접지오픈시 상기 전자제어장치에 의해 제어되는 각종 장치들의 구동을 방지하는 것을 특징으로 한다.
In addition, it is characterized in that the driving of the various devices controlled by the electronic control device when the ground is open.

이하에서는 본 발명의 바람직한 실시예를 본 도면을 참조하여 상세하게 설명하도록 한다. 도1에 도시된 바와 같이 본 발명의 일실시예에 따른 전자제어장치의 접지오픈 감지장치는 5V의 정전압원(10)과, 정전압원(10)에 연결된 풀업저항(11)과, 풀업저항(11) 및 접지(12) 사이의 전압을 감지하는 제어부(13)와, 제어부(13)의 입력단에 연결되어 제어부(13)에 입력되는 신호를 필터링하는 필터(14)와, 제어부(13)의 PWM(Pulse-width modulation)제어신호에 의해 스위칭동작하는 FET(Field effect transistor)(15)와, 스위칭동작하는 FET(15)에 의해 온 또는 오프되는 솔레노이드 밸브(16)와, 솔레노이드 밸브(16)에 전원을 공급하는 배터리(17)를 포함한 다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, the ground-opening sensing device of the electronic control apparatus according to the embodiment of the present invention includes a 5V constant voltage source 10, a pullup resistor 11 connected to the constant voltage source 10, and a pullup resistor ( 11 and a control unit 13 for sensing a voltage between the ground 12, a filter 14 connected to an input terminal of the control unit 13 and filtering a signal input to the control unit 13, and the control unit 13. A field effect transistor (FET) 15 that is switched by a pulse-width modulation (PWM) control signal, a solenoid valve 16 that is turned on or off by the switching FET 15, and a solenoid valve 16. It includes a battery 17 for supplying power.

정전압원(10)과 풀업저항(11)은 A지점이 정상적으로 접지된 상태이면 제어부(13)에 로우신호(0V)가 입력되도록 하고, A지점이 접지와 분리되어 접지오픈이 된 상태이면 제어부(13)에 하이신호(5V)가 입력되도록 한다.The constant voltage source 10 and the pull-up resistor 11 allow a low signal (0V) to be input to the control unit 13 when the point A is normally grounded. Input a high signal (5V).

필터(14)는 R(18),C(19)로 구성된 로우패스(LOW PASS)필터이며, 제어부(13)로 입력되는 전압신호에 포함된 노이즈 성분을 제거하기 위해 설치된다.The filter 14 is a low pass filter composed of R 18 and C 19, and is installed to remove noise components included in the voltage signal input to the control unit 13.

솔레노이드 밸브(16)는 인덕턴스 성분과 저항성분으로 나눠지는 코일을 가지는데 코일에 전류가 흘러 자기장이 발생됨으로써 코일내부에 위치하는 자기코어(미도시)를 이동시키고, 자기코어의 이동정도에 따라 유체의 흐름이 조절된다. 따라서 솔레노이드 밸브(16)의 코일에 흐르는 전류의 크기를 조절하면 유체의 흐름이 조절된다.The solenoid valve 16 has a coil that is divided into an inductance component and a resistance component. A current flows through the coil to generate a magnetic field, which moves a magnetic core (not shown) located in the coil, and moves the fluid according to the degree of movement of the magnetic core. The flow of is controlled. Therefore, by adjusting the magnitude of the current flowing through the coil of the solenoid valve 16, the flow of the fluid is controlled.

FET(15)는 MOSFET(Metal-Oxide semiconductor field effect transistor:금속 산화막 반도체 전계 효과 트랜지스터)으로 구현할 수 있으며, MOSFET의 게이트 단자는 제어부(13)와 연결되어 제어부(13)의 제어신호에 의해 MOSFET이 온 되거나 오프된다. MOSFET이 온 되면 전류가 흐를 수 있는 루프가 형성되므로 솔레노이드 밸브(16)가 온되어 배터리(17)에서 솔레노이드 밸브(16)의 코일로 전류가 흐르게 되고, MOSFET이 오프되면 전류가 흐를 수 있는 루프가 차단되어 솔레노이드 밸브(16)도 오프된다.The FET 15 may be implemented by a metal oxide semiconductor field effect transistor (MOSFET), and the gate terminal of the MOSFET is connected to the controller 13 so that the MOSFET is controlled by a control signal of the controller 13. On or off. When the MOSFET is turned on, a loop through which current flows is formed, so that the solenoid valve 16 is turned on so that current flows from the battery 17 to the coil of the solenoid valve 16, and when the MOSFET is turned off, a loop capable of flowing current is formed. The solenoid valve 16 is also turned off by shutting off.

제어부(13)는 A지점의 전압변화를 모니터링하다가 B포트로 입력되는 신호가 로우신호이면 제어부(13)가 정상적으로 접지(A지점의 전압은 0V)된 상태로 본다. 그러나 B포트로 하이신호가 입력되면 제어부(13)의 접지가 오픈(A지점의 전압은 5V)된 것으로 판단한다. 접지가 오픈된 것으로 판단되면 제어부(13)는 FET(15)에 오프신호를 전송하여 FET(15)를 오프시킴으로써 배터리(17)로부터 솔레노이드 밸브(16)로 전원이 공급되는 것을 방지한다. 또한, 잘못된 제어명령에 의해 차량이 제어되는 것을 막기 위해 경고램프(미도시)를 온 시켜 운전자의 주의를 환기시킬수도 있다. The controller 13 monitors the voltage change at the point A, and if the signal input to the port B is a low signal, the controller 13 is considered to be normally grounded (the voltage at the point A is 0V). However, when the high signal is input to the B port, it is determined that the ground of the controller 13 is open (the voltage at the point A is 5V). If it is determined that the ground is open, the control unit 13 transmits an off signal to the FET 15 to turn off the FET 15 to prevent power from being supplied from the battery 17 to the solenoid valve 16. In addition, a warning lamp (not shown) may be turned on to alert the driver to prevent the vehicle from being controlled by an incorrect control command.

이상에서 상세히 설명한 바와 같이, 본 발명은 전자제어장치의 접지가 오픈되어 전자제어장치의 접지레벨이 불안정해짐으로써 잘못된 제어명령이 발생하는 것을 막을 수 있다.As described in detail above, the present invention can prevent the wrong control command from being generated because the ground of the electronic control device is opened and the ground level of the electronic control device becomes unstable.

Claims (3)

정전압원(10),Constant voltage source (10), 상기 정전압원(10)에 연결된 풀업저항(11),A pull-up resistor 11 connected to the constant voltage source 10, 상기 풀업저항(11)과 접지(12) 사이에 연결된 제어부를 포함하고,A control unit connected between the pull-up resistor 11 and the ground 12, 상기 제어부는 상기 풀업저항(11)과 접지(12) 사이의 전압을 감지하여 전자제어장치의 접지(12) 오픈 여부를 모니터링하되, 상기 풀업저항(11)과 상기 접지(12) 사이의 전압이 상기 정전압원(10)의 전압과 같은 경우 접지(12)의 오픈으로 판단하는 것을 특징으로 하는 전자제어장치의 접지오픈 감지장치The control unit monitors whether the ground 12 of the electronic controller is opened by sensing a voltage between the pull-up resistor 11 and the ground 12, but the voltage between the pull-up resistor 11 and the ground 12 is increased. Ground open detection device of the electronic control device, characterized in that the same as the voltage of the constant voltage source 10 is determined to open the ground (12) 삭제delete 제1항에 있어서,The method of claim 1, 상기 접지(12) 오픈시 상기 전자제어장치에 의해 제어되는 각종 장치들의 구동을 방지하는 것을 특징으로 하는 전자제어장치의 접지오픈 감지장치Ground open detection device of the electronic control device, characterized in that to prevent the driving of the various devices controlled by the electronic control device when the ground 12 is opened.
KR1020040016005A 2004-03-10 2004-03-10 A ground open monitoring apparatus of electronic control unit KR100807997B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020040016005A KR100807997B1 (en) 2004-03-10 2004-03-10 A ground open monitoring apparatus of electronic control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020040016005A KR100807997B1 (en) 2004-03-10 2004-03-10 A ground open monitoring apparatus of electronic control unit

Publications (2)

Publication Number Publication Date
KR20050090766A KR20050090766A (en) 2005-09-14
KR100807997B1 true KR100807997B1 (en) 2008-02-28

Family

ID=37272687

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020040016005A KR100807997B1 (en) 2004-03-10 2004-03-10 A ground open monitoring apparatus of electronic control unit

Country Status (1)

Country Link
KR (1) KR100807997B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0687401A (en) * 1992-09-09 1994-03-29 Omron Corp Failure diagnosing device for air bag system
KR19990029965A (en) * 1997-09-22 1999-04-26 모리시따요오이 찌 washer
US6188203B1 (en) 1996-11-01 2001-02-13 Lucas Aerospace Power Equipment Corporation Ground fault detection circuit
JP2004053367A (en) 2002-07-18 2004-02-19 Nissan Motor Co Ltd Diagnostic device for ground fault detection circuit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0687401A (en) * 1992-09-09 1994-03-29 Omron Corp Failure diagnosing device for air bag system
US6188203B1 (en) 1996-11-01 2001-02-13 Lucas Aerospace Power Equipment Corporation Ground fault detection circuit
KR19990029965A (en) * 1997-09-22 1999-04-26 모리시따요오이 찌 washer
JP2004053367A (en) 2002-07-18 2004-02-19 Nissan Motor Co Ltd Diagnostic device for ground fault detection circuit

Also Published As

Publication number Publication date
KR20050090766A (en) 2005-09-14

Similar Documents

Publication Publication Date Title
JP4902615B2 (en) Semiconductor switch
JP2009062048A (en) Method and device for controlling automobile brake system
US6111514A (en) Solenoid fail-safe using current feedback as a diagnostic input
KR19990028823A (en) Pressure value measuring method and device
WO1995022160A1 (en) Solenoid current driver circuit
KR100807997B1 (en) A ground open monitoring apparatus of electronic control unit
KR20150057633A (en) Motor drive circuit for vehicle
JP2005286163A (en) Apparatus and method for sensing position of plunger of solenoid, solenoid valve, and directional change valve
KR20140043972A (en) Current control circuit for solenoid valve
KR100884822B1 (en) Error Detection Method of Solenoid Valve
JP2005317612A (en) Apparatus and method for detecting plunger position in solenoid
KR100721382B1 (en) Apparatus for temperature gauge of the solenoid coil in a vehicle
KR100721366B1 (en) Apparatus for monitoring temperature change of the solenoid coil in a vehicle
KR100760860B1 (en) Apparatus for monitoring temperature change of the solenoid coil in a vehicle
KR100799487B1 (en) Driving device of solenoid valve in a vehicle
JP4013116B2 (en) Drive device
KR100751259B1 (en) Solenoid valve control apparatus for anti-lock brake system
KR102310535B1 (en) Apparatus for controlling damper of continuous damping control system
KR100751218B1 (en) Anti-lock brake system
KR100779494B1 (en) A reverse voltage preventing apparatus
KR100807999B1 (en) Solenoid valve control apparatus
KR100758540B1 (en) Apparatus for operating solenoid valve
JPS59120572A (en) Abnormality detecting device in power steering
JPH037259Y2 (en)
KR950005148Y1 (en) Solenoid disorder-inspecting apparatus for automobile a. b. s.

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
G170 Publication of correction
FPAY Annual fee payment

Payment date: 20130121

Year of fee payment: 6

FPAY Annual fee payment

Payment date: 20131223

Year of fee payment: 7

FPAY Annual fee payment

Payment date: 20141222

Year of fee payment: 8

FPAY Annual fee payment

Payment date: 20151222

Year of fee payment: 9

FPAY Annual fee payment

Payment date: 20161222

Year of fee payment: 10

FPAY Annual fee payment

Payment date: 20171222

Year of fee payment: 11

FPAY Annual fee payment

Payment date: 20181226

Year of fee payment: 12

FPAY Annual fee payment

Payment date: 20191219

Year of fee payment: 13