WO1999056139A1 - Appareil permettant de detecter les defaillances d'un dispositif a solenoide - Google Patents

Appareil permettant de detecter les defaillances d'un dispositif a solenoide Download PDF

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Publication number
WO1999056139A1
WO1999056139A1 PCT/JP1999/001753 JP9901753W WO9956139A1 WO 1999056139 A1 WO1999056139 A1 WO 1999056139A1 JP 9901753 W JP9901753 W JP 9901753W WO 9956139 A1 WO9956139 A1 WO 9956139A1
Authority
WO
WIPO (PCT)
Prior art keywords
electromagnetic coil
voltage signal
value
power supply
voltage
Prior art date
Application number
PCT/JP1999/001753
Other languages
English (en)
Japanese (ja)
Inventor
Tetsuo Muraji
Original Assignee
Mikuni Corporation
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 Mikuni Corporation filed Critical Mikuni Corporation
Priority to EP99910824A priority Critical patent/EP0995997A4/fr
Publication of WO1999056139A1 publication Critical patent/WO1999056139A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1844—Monitoring or fail-safe circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1872—Bistable or bidirectional current devices

Definitions

  • the present invention relates to a failure determining device for an electromagnetic coil operating device comprising an electromagnetic coil.
  • the direction of the power supply current supplied to the electromagnetic coil is changed in the forward or reverse direction.
  • the device shown in Fig. 1 is known as a device for determining the failure of the electromagnetic coil operating device. I'm afraid.
  • This device has a fault (hereinafter referred to as a ground fault) in which the connection line of the electromagnetic coil operation device and the ground wire are short-circuited, and the connection line of the electromagnetic coil operation device and the power supply line.
  • This is a device to protect the electromagnetic coil operating device or prevent electric leakage to the outside of the device by judging a fault (hereinafter referred to as a short-to-power fault) in which the and are short-circuited.
  • a power supply line of a power supply (not shown) is connected to FETs 10 and 30 which are switching elements via resistors 62 and 63.
  • the operational amplifier element 61 is connected to the connection line between the resistor 62 and the FET 10 and the connection line between the resistor 63 and the FET 30.
  • FETs 10 and 30 are connected to FETs 20 and 40, respectively. Both ends of the electromagnetic coil 1 are connected to a connection line between the FET 10 and the FET 20 and a connection line between the FET 30 and the FET 40, respectively.
  • FET 2 0
  • the FET 40 and the FET 40 are grounded via a resistor 72 and connected to the operational amplifier 71.
  • a supply current detection circuit 60 is composed of the operational amplifier element 61 and the resistors 62 and 63, and the supply current detection circuit 60 has a voltage generated by the resistors 62 and 63. The value of the current supplied to the FETs 10 and 30 is detected from the drop. Further, the operational amplifier element 71 and the resistor 72 constitute an overcurrent detection circuit 70, and the supercharging current detection circuit 70 detects the FET 20 and the FET 20 from the voltage drop generated by the resistor 72. And the value of the current passing through 40.
  • the device shown in FIG. 1 requires two detection circuits, that is, a supply current detection circuit 60 and an overcurrent detection circuit 70, and also requires a detection circuit.
  • An inconvenience has arisen that the program for determining the failure of the electromagnetic coil operating device from the current value detected by the circuit is complicated.
  • the resistors 62, 63, and 72 provided for current detection, half of the CPU, FET, etc. installed near these resistors As the temperature of the conductor elements rises and these elements are liable to malfunction, there is also a problem that it is not possible to properly supply current to the electromagnetic coil. I did.
  • the signal supplied to the operational amplifying element of the current detection circuit is a very small signal, it is easily affected by noise, and the noise occurs. Is There was also the inconvenience that it was easy to misidentify a malfunction in the electromagnetic coil operating device.
  • the present invention has been made in view of the above points, and its purpose is to reduce the cost and to appropriately supply a current to an electromagnetic coil.
  • An object of the present invention is to provide a failure determination device for an electromagnetic coil operating device capable of accurately determining a failure of the electromagnetic coil operating device while supplying the failure.
  • the electromagnetic coil operating device is provided with a fault detecting device which comprises two current paths each comprising a switch pair connected in series with each other.
  • An electromagnetic coil connected between the connection points of each of the switch pairs, a drive circuit for selectively operating the switches, and power supplies at both ends of both the current paths.
  • An adding means for generating an added voltage signal according to the added value, and an operation state of the switch pair Said electromagnetic Coil failure determining means you determine the failure of the Le operation device based on the value of the sum voltage signal, that has features and this pressurized et ing.
  • the cost can be reduced, the current can be appropriately supplied to the power supply coil, and the target can be appropriately reduced.
  • the failure of the electromagnetic coil operating device can be determined with certainty.
  • FIG. 1 is a circuit diagram showing a conventional failure determination device for an electromagnetic coil operating device.
  • FIG. 2 is a circuit diagram showing a failure determining device for an electromagnetic coil operating device according to the present invention.
  • FIG. 3 is a circuit diagram showing the operation of the electromagnetic coil operating device in the on mode.
  • FIG. 4 is a circuit diagram showing the operation of the electromagnetic coil operating device in the off mode.
  • Figure 5 is a flow chart showing a subroutine that determines a ground fault.
  • Fig. 6 is a flow chart showing a subroutine for determining a short-to-power fault.
  • Figure 7 is a timing chart showing the changes in voltage and current in an experiment in which a ground fault occurred.
  • Fig. 8 is a timing chart showing changes in voltage and current in an experiment in which a short-to-supply fault was generated.
  • FIG. 2 shows a failure judging device for an electromagnetic coil operating device according to the present invention. Note that the same reference numerals are given to components corresponding to the components shown in FIG.
  • Supply voltage V B is to via the power supply line VL, the scan I pitch in g elements, Ru is supplied to the FET 1 0 and 3 0
  • the switching elements 10 and 30 are connected to switching elements, for example, FETs 20 and 40, respectively, and the switching elements 20 and 40 are connected to the switching elements 20 and 40, respectively. Connected to ground GND via ground line G. Both ends of the electromagnetic coil 1 are connected to a connection line between the switching element 10 and the switching element 20 and to the switching element 30 and the switching element. It is connected to each of the connection lines to the element 40.
  • connection point 2 of a connection line between the switching element 10 and the switching element 20 a resistor 3 is connected, and the switching element is connected.
  • a connection point 4 of a connection line between 30 and the switching element 40 a resistor 5 is connected.
  • V p a resistor that your only that voltage value to the connection point 4 is referred to as V N.
  • the resistors 3 and 5 are connected to the engine control unit 50 via a resistor 7 for changing the voltage to a predetermined value. It is connected to the A / D converter 51.
  • the AZD converter 51 converts the supplied signal into a digital signal, and supplies the digital signal to the input / output node 52.
  • the input / output node 52 is configured so that a data signal or an address signal is input / output to the CPU 53.
  • the input / output node 52 includes ROM 54, RAM 55, and switching elements 10, 20, 30 and 30.
  • the drive circuit group 56 connected to the drive circuit group 56 for driving 40 controls the switching elements 10, 20, 30, and 40. Connected to signal input terminal.
  • the R ⁇ M 54 is a program for determining the failure of the electromagnetic coil operating device according to the flowchart described in FIGS. 5 and 6. Is memorized.
  • the current path is constituted by the switching elements 10 and 20 or the switching elements 30 and 40 and the connection lines thereof, and An electromagnetic coil operating device is composed of the switching elements 10, 20, 30, and 40 and the electromagnetic coil 1, and a drive circuit is composed of the drive circuit group 56.
  • a power supply means is constituted by a power supply not shown, and a voltage detection means is constituted by a connection line between the connection point 2 and the resistance 3 and a connection line between the connection point 4 and the resistance 5.
  • the resistors 3 and 5 constitute an adding means, and the AZD converter 51, the input / output noise 52, the CPU 53, the ROM 54, and the RAM 55 constitute a determining means.
  • the state in which the switching elements 10 and 30 are opened and the switching elements 20 and 40 are connected is described in an off mode.
  • a state in which the switching elements 10 and 40 are open and the switching elements 20 and 30 are connected is called an on mode.
  • the switching between the on-mode and the off-mode is performed by switching the switching element 1 in response to the above-mentioned instruction signal issued from the CPU 53. 0, 20, 30, and 40 are driven by being driven.
  • the value of the input resistance of the A / D converter 51 is large, and the value of the current supplied to the A / D converter 51 is negligible.
  • the resistors 12, 22, 32, and 42 in FIGS. 3 and 4, which will be described later, correspond to the switching elements 10, 20, 30, and 40, respectively. , For example, on-resistance, each having the same resistance value.
  • a short-circuit fault between the connection line of the electromagnetic coil operation device and GND is called a ground fault
  • a short-circuit fault between the connection line of the electromagnetic coil operation device and the power supply line is called a short-to-power fault. .
  • FIG. 3 shows the operation of the electromagnetic coil operating device in the on-mode. Note that the same reference numerals are given to the components corresponding to the components shown in FIG.
  • the power supply current from the power supply is supplied to the electromagnetic coil 1 via the on / off switch 11 of the switching element 10 and the resistor 12. After that, the current flows to GND via the on-off switch 41 of the switching element 40 and the resistor 42.
  • V p is lower than the power supply voltage V B by the voltage V 12 across the resistor 12
  • V N is only the voltage V 42 across the resistor 42 and the ground potential. Will also be higher.
  • the electromagnetic coil operating device is in a favorable condition, the current flowing through resistors 12 and 42 is Flow is due but Ru Oh the same, the resistance 1 2 and Ri Do rather equally and 4 2 of the inter-end voltage V 12 and V 42, the sum of V P and V N rather equally and V B It becomes.
  • FIG. 4 shows the operation of the electromagnetic coil operating device in the off mode.
  • the same reference numerals are given to the components corresponding to the components shown in FIGS. 2 and 3.
  • the starting process such as the initialization of the variables used in the CPU 53 is completed, and the electromagnetic coil operating device performs a predetermined constant operation, for example, as described above. It is assumed that the on-mode and the off-mode are repeated at a constant period.
  • Figure 5 shows a subroutine that determines a ground fault.
  • step S11 it is determined whether or not the electromagnetic coil operating device is in the on mode (step S11). If it is determined that the mode is not the on-mode, the subroutine is terminated immediately. On the other hand, if it is determined that the Ru Oh in the on-mode is, V ⁇ , you detect the V ⁇ and V ⁇ (scan STEP S 1 2). In the next doctor, V ⁇ - (V ⁇ + V ⁇ ) is you judged whether or not we can large Ri by the predetermined value V D (scan STEP S 1 3). V B — (V p + V N ) is less than V D Ends this subroutine.
  • V B — (V p + V N ) is larger than V D
  • the ground fault processing is performed.
  • the switching elements 10, 20, 30, and 40 are opened to stop the power supply to the electromagnetic coil operating device (step S 14), and the subroutine is opened. End the session.
  • a ground fault is determined during on-mode.
  • Figure 6 shows a subroutine that determines a short-to-power fault.
  • step S21 it is determined whether or not the electromagnetic coil operating device is in an off-mode (step S21). If it is determined that the mode is not the off-mode, the subroutine is terminated immediately. On the other hand, if it is determine by the Ru Oh in the off mode is, that issue detects the V P and V N (the scan STEP S 2 2). Then, Vp + VN is a predetermined value
  • Figure 7 shows the changes in voltage and current in an experiment that caused a ground fault.
  • Figure 8 shows the changes in voltage and current in an experiment that caused a short-to-supply fault.
  • the electromagnetic coil operating device and the failure determining device of the electromagnetic coil operating device as described above are connected to an electromagnetic actuator for driving a driven member.
  • the electromagnetic coil is used for the control device of the present invention, the electromagnetic coil is not used as a magnetomotive force source for driving the magnetic member for driving the driven member, and the electromagnetic coil operating device is not used for the electromagnetic coil operating device.
  • the failure determination device determines the failure of the electromagnetic coil operating device, so that the reliability of the electromagnetic actuator can be improved. It can be done.
  • the failure determination device according to the present invention may be installed in each electromagnetic coil operating device.
  • the other electromagnetic coil operating device has an electromagnetic actuator. It is possible to drive the air conditioner, and the cost is higher than when a failure determination device according to the prior art is installed in each of two electromagnetic coil operation devices. It can be greatly reduced.
  • the addition means constituted by the two resistors 3 and 5 is shown.
  • an analog addition circuit such as an operational amplification element is used as the addition means. It is clear that you can use it.
  • the cost can be reduced, and the number of resistors serving as a heat generating source can be reduced.
  • the temperature rise of the semiconductor By adopting a configuration that can suppress the current, it is possible to appropriately supply current to the power coil, and at the same time, it is possible to accurately control the electromagnetic coil operating device. Failure can be determined.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

La présente invention concerne un appareil permettant de détecter les défaillances d'un dispositif à solénoïde, lequel appareil comprend deux circuits composés de deux paires de commutateurs série (10, 20, 30, 40) et d'une bobine électromagnétique (1) connectée entre les noeuds intermédiaires (2, 4) des paires de commutateurs. L'existence d'une défaillance du dispositif à solénoïde est déterminée sur la base de l'état de fonctionnement de la paire de commutateurs et de l'amplitude d'un signal de tension représentant la somme d'un premier signal de tension (VP) et d'un deuxième signal de tension (VN) correspondant, respectivement, aux potentiels des noeuds intermédiaires (2, 4).
PCT/JP1999/001753 1998-04-28 1999-04-02 Appareil permettant de detecter les defaillances d'un dispositif a solenoide WO1999056139A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99910824A EP0995997A4 (fr) 1998-04-28 1999-04-02 Appareil permettant de detecter les defaillances d'un dispositif a solenoide

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11821998A JPH11311651A (ja) 1998-04-28 1998-04-28 電磁コイル動作装置の故障判別装置
JP10/118219 1998-04-28

Publications (1)

Publication Number Publication Date
WO1999056139A1 true WO1999056139A1 (fr) 1999-11-04

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PCT/JP1999/001753 WO1999056139A1 (fr) 1998-04-28 1999-04-02 Appareil permettant de detecter les defaillances d'un dispositif a solenoide

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EP (1) EP0995997A4 (fr)
JP (1) JPH11311651A (fr)
WO (1) WO1999056139A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005067380A (ja) * 2003-08-25 2005-03-17 Honda Motor Co Ltd 電動パワーステアリング装置の故障検出方法
US8362319B2 (en) 2004-09-20 2013-01-29 Basf Plant Science Gmbh Arabidopsis genes encoding proteins involved in sugar and lipid metabolism and methods of use

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4508320B2 (ja) * 1999-10-01 2010-07-21 株式会社ミクニ 電磁コイル動作装置の故障判別装置
DE102004015932A1 (de) 2004-04-01 2005-10-20 Moeller Gmbh Verfahren und Schaltungsanordnung zum Betreiben eines Magnetantriebes

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Publication number Priority date Publication date Assignee Title
JPH04238272A (ja) * 1991-01-22 1992-08-26 Nippon Inter Electronics Corp 漏洩電流検知機能を備えた電力供給回路
JPH05185937A (ja) * 1991-11-11 1993-07-27 Omron Corp 電動式パワーステアリング装置のモータ駆動装置
JPH0746885A (ja) * 1993-07-30 1995-02-14 Nippon Carbureter Co Ltd 無段変速機の変速比変更用直流電動機の駆動回路

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IT1001997B (it) * 1973-11-28 1976-04-30 Circuito di pilotaggio per elet tromagnete di stampa
JPH0681551B2 (ja) * 1984-10-16 1994-10-12 セイコ−電子工業株式会社 ステップモ−タの回転検出方法
NL8600150A (nl) * 1986-01-23 1987-08-17 Nederlanden Staat Inrichting voor het besturen van de stroomsterkte door een impedantie.
GB2273836A (en) * 1992-12-24 1994-06-29 Rover Group Fuel injector control circuit with voltage boost
DE4326942C2 (de) * 1993-08-11 1997-01-16 Veba Kraftwerke Ruhr Einrichtung und Verfahren zur Überwachung eines Auslösekreises eines elektrischen Betriebsmittels
GB2305560B (en) * 1995-09-19 2000-01-19 Gec Alsthom Ltd Switch circuit for a bistable magnetic actuator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04238272A (ja) * 1991-01-22 1992-08-26 Nippon Inter Electronics Corp 漏洩電流検知機能を備えた電力供給回路
JPH05185937A (ja) * 1991-11-11 1993-07-27 Omron Corp 電動式パワーステアリング装置のモータ駆動装置
JPH0746885A (ja) * 1993-07-30 1995-02-14 Nippon Carbureter Co Ltd 無段変速機の変速比変更用直流電動機の駆動回路

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0995997A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005067380A (ja) * 2003-08-25 2005-03-17 Honda Motor Co Ltd 電動パワーステアリング装置の故障検出方法
US8362319B2 (en) 2004-09-20 2013-01-29 Basf Plant Science Gmbh Arabidopsis genes encoding proteins involved in sugar and lipid metabolism and methods of use

Also Published As

Publication number Publication date
EP0995997A4 (fr) 2004-07-21
JPH11311651A (ja) 1999-11-09
EP0995997A1 (fr) 2000-04-26

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