EP2489871A2 - Anregungssteuerungseinheit für Zündkerzen - Google Patents

Anregungssteuerungseinheit für Zündkerzen Download PDF

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Publication number
EP2489871A2
EP2489871A2 EP20120156200 EP12156200A EP2489871A2 EP 2489871 A2 EP2489871 A2 EP 2489871A2 EP 20120156200 EP20120156200 EP 20120156200 EP 12156200 A EP12156200 A EP 12156200A EP 2489871 A2 EP2489871 A2 EP 2489871A2
Authority
EP
European Patent Office
Prior art keywords
fet
energizing
reverse connection
connection protection
glow plug
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP20120156200
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English (en)
French (fr)
Inventor
Kazunari Kobuko
Takayuki Sakurai
Masayoshi Matsui
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Niterra Co Ltd
Original Assignee
NGK Spark Plug Co Ltd
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 NGK Spark Plug Co Ltd filed Critical NGK Spark Plug Co Ltd
Publication of EP2489871A2 publication Critical patent/EP2489871A2/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P19/00—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition
    • F02P19/02—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs
    • F02P19/027—Safety devices, e.g. for diagnosing the glow plugs or the related circuits

Definitions

  • the present invention relates to an energization control unit of a glow plug used for preheating a diesel engine, or the like.
  • a glow plug having a heater is used for preheating a combustion engine such as a diesel engine, and the glow plug generates heat based on power supplied from a power supply (a battery).
  • an energization control unit which controls heat generation of a glow plug
  • an energization signal output portion for outputting an energization signal (a PWM signal) which determines whether or not the glow plug can be energized by a power supply
  • an energizing FET field effect transistor
  • the energizing FET has a parasitic diode formed in parallel between the source and the drain of the energizing FET.
  • the parasitic diode is in a reverse direction with respect to a direction in which current flows between the power supply and glow plug, no current flows through the parasitic diode in the event that the power supply is connected in correct polarity.
  • the parasitic diode is in a forward direction with respect to a direction in which reverse current flows between the power supply and glow plug. This may lead to a possibility that the glow plug is continuously energized. As a result of this, there is fear that the glow plug is overheated and fails.
  • a reverse connection protection FET is provided in series between the power supply VA and energizing FET in such a way that the source and the drain of the reverse connection protection FET are in a reverse direction with respect to those of the energizing FET (for example, refer to Patent Document 1).
  • a parasitic diode formed in the reverse connection protection FET is in a reverse direction with respect to the parasitic diode of the energizing FET. Because of this, even when the power supply is connected in reverse, the parasitic diode of the reverse connection protection FET is in a reverse direction. Thus, it is possible to avoid energization of the glow plug.
  • a conducting member configuring one portion of the electricity supply path after being fixed by solder, is biased by a spring member, and the conducting member is flipped up by the biasing force of the spring member when the solder melts owing to the heat generation of the energizing FET, thereby disconnecting the electricity supply path.
  • Patent Document 1 W02008/108330
  • Patent Document 2 DE102005040308B4
  • an ON failure occurs in the energizing FET
  • the failure condition differs widely. Specifically, when the energizing FET becomes internally conductive due to the ON failure, the internal resistance value thereof varies according to the failed FET, and the energizing FET becomes conductive by having a high resistance component (an "ON failure"), or conversely, becomes conductive by having a low resistance component. Consequently, there is fear that variation (an ON failure due to differing internal resistance) occurs in the heat generation behavior of the energizing FET, and furthermore, that variation occurs in a time from an ON failure occurring in the energizing FET until the energizing FET is de-energized (the conducting member is flipped up). That is, with the technology described in Patent Document 2, there is fear that it is not possible to stably operate a de-energization function (it is not possible to predict the operation of the de-energization function).
  • the invention has been contrived bearing in mind the heretofore described circumstances, and an object thereof lies in providing a glow plug energization control unit which can stably operate a function of de-energizing an energizing FET when an ON failure occurs in the energizing FET.
  • a glow plug energization control unit of this configuration is a glow plug energization control unit including:
  • the reverse connection protection FET As the reverse connection protection FET is provided, it is possible to prevent continuous energization of the glow plug when the power supply is connected in reverse.
  • the reverse connection protection FET when an ON failure of the energizing FET is detected by the failure detection portion, the reverse connection protection FET is caused to generate heat by the reverse connection protection FET being turned off to cause current to flow through the parasitic diode of the reverse connection protection FET. Then, owing to the heat generation of the reverse connection protection FET, an electrical connection of the power supply and energizing FET is disconnected in the protection portion, which results in de-energizing the energizing FET.
  • the energizing FET is de-energized based on the heat generation of the reverse connection protection FET, whose heat generation condition varies little, caused by causing current to flow through the parasitic diode, rather than the heat generation of the energizing FET whose heat generation condition may vary according to a failure condition.
  • a voltage drop in the parasitic diode is stable at a typical value of, for example, on the order of 0.8V, because of which it is also possible to predict a heat generation temperature at which the reverse connection protection FET generates heat. Consequently, it is possible to operate a function of de-energizing the energizing FET stably (as assumed on a designer and manufacturer side).
  • protection portion which de-energizes the energizing FET, it is possible to employ, for example, configurations 2 and 3 to be described hereafter.
  • a glow plug energization control unit of this configuration is such that, in the configuration 1, the protection portion is a fuse, connected in series between the power supply and energizing FET, which melts down owing to the heat generation of the reverse connection protection FET through feeding an electrical current to the parasitic diode of the reverse connection protection FET.
  • the fuse may be brought into direct contact with the reverse connection protection FET, or may be brought into indirect contact with the reverse connection protection FET via a high thermal conductive member.
  • the high thermal conductive member preferably has a certain degree of thermal resistance, considering the heat generation of the reverse connection protection FET.
  • a glow plug energization control unit of this configuration is such that, in the configuration 1, the protection portion includes:
  • a glow control unit (GCU) 31 acting as an energization control unit controls energization of a glow plug 1, and is used for a starting aid, an improvement in drive stability, and the like, of a diesel engine (hereafter called an "engine") EN of an automobile.
  • GCU glow control unit
  • Fig. 1 (a) is a partially broken front view of the glow plug 1
  • Fig. 1 (b) is a partially enlarged sectional view of a leading end portion of the glow plug 1.
  • Figs. 1 (a) and 1 (b) a description will be given with the lower side of the drawings as the leading end side of the glow plug 1 and the upper side as the rear end side.
  • the glow plug 1 includes a housing 2, a center pole 3, a ceramic heater 4, a metal pipe 5, a terminal pin 6, and the like.
  • the housing 2 as well as being formed from a predetermined metallic material (for example, an iron-based material such as S45C), has an axial hole 7 extending in a direction of an axis CL1. Furthermore, a threaded portion 8 for use in mounting the glow plug 1 in the engine EN and a tool engagement portion 9 of hexagonal cross section for bringing a tool such as a torque wrench into engagement therewith are formed on the outer periphery of the housing 2.
  • a predetermined metallic material for example, an iron-based material such as S45C
  • the metallic center pole 3 of a round bar form is housed in the axial hole 7 of the housing 2. Furthermore, the leading end portion of the center pole 3 is press fitted into the rear end portion of a cylindrical connecting member 10 formed from a metallic material (for example, an iron-based material such as SUS), and the rear end portion of the ceramic heater 4 is press fitted into the leading end portion of the connecting member 10. Because of this, the center pole 3 and ceramic heater 4 are mechanically and electrically connected via the connecting member 10.
  • a metallic material for example, an iron-based material such as SUS
  • the metallic terminal pin 6 for connecting an energizing cable is fixed by caulking onto the rear end portion of the center pole 3.
  • the metal pipe 5 is formed into a cylindrical shape from a predetermined metallic material, and joined to the leading end portion of the housing 2.
  • the metal pipe 5 holds an intermediate portion of the ceramic heater 4 in the direction of the axis CL1, and the leading end portion of the ceramic heater 4 is in a condition in which it is exposed from the leading end of the metal pipe 5.
  • the ceramic heater 4 includes a base substance 21 of a round bar form extending in the direction of the axis CL1 and an elongated U-shaped heater element 22 embedded inside the base substance 21.
  • the base substance 21 is configured of an insulating ceramic (for example, silicone nitride or alumina), while the heater element 22 is configured of a conductive ceramic, based on a ceramic material, which contains a conductive material (for example, molybdenum or tungsten silicide, nitride, or carbide).
  • the heater element 22 includes a heat generating portion 23 disposed at the leading end portion of the ceramic heater 4 and a pair of bar-like lead portions 24 and 25 extending from the heat generating portion 23 to the rear end side. Then, an electrode lead-out portion 26 is provided in a position closer to the rear end of one lead portion 24, protruding in a direction of the outer periphery in such a way as to be exposed on an outer peripheral surface of the ceramic heater 4, and the electrode lead-out portion 26 is in contact with an inner peripheral surface of the connecting member 10.
  • an electrode lead-out portion 27 is also provided in a position closer to the rear end of the other lead portion 25, protruding in a direction of the outer periphery in such a way as to be exposed on an outer peripheral surface of the ceramic heater 4, and the electrode lead-out portion 27 is in contact with an inner peripheral surface of the metal pipe 5.
  • Fig. 2 is a block diagram showing an outline configuration of the GCU 31 which carries out a control of energization of the glow plug 1, and the like.
  • the glow plug 1 is provided in each cylinder of the engine EN, and power is supplied to each glow plug 1 via a diverging point DP from a power supply VA which outputs a predetermined voltage (for example, 12V).
  • a predetermined voltage for example, 12V.
  • an energizing FET 51 to be described hereafter, is provided corresponding to each glow plug 1.
  • the GCU 31 operates in accordance with power supplied from the power supply VA, and is connected via a predetermined communication unit (for example, a CAN) to an electronic control unit (ECU) 91 of the automobile. Also, the GCU 31 includes a reverse connection protection FET (field effect transistor) 41, the energizing FET 51, a controller (in the embodiment, an ASIC) 61, a switch 71, and a fuse 81 acting as a protection portion.
  • a reverse connection protection FET field effect transistor
  • the reverse connection protection FET 41 is for preventing an overheat failure of the energizing FET 51 when the power supply VA is connected in reverse polarity.
  • the reverse connection protection FET 41 is interposed in an electricity supply path electrically connecting the power supply VA and glow plug 1, and specifically, the drain thereof is connected to the energizing FET 51, while the source thereof is connected to the power supply VA. That is, the reverse connection protection FET 41 is disposed in such a way that the source and drain thereof are in a reverse direction with respect to the source and drain of the energizing FET 51.
  • the reverse connection protection FET 41 is configured of an N-channel MOSFET, and only one is provided between the diverging point DP of power supplied from the power supply VA to each glow plug 1 and the power supply VA.
  • the reverse connection protection FET 41 in the embodiment is of very low on resistance (for example, several milliohms).
  • the reverse connection protection FET 41 has a parasitic diode 411 formed in parallel between the source and drain of the same reverse connection protection FET 41, and the parasitic diode 411 is in a forward direction with respect to the direction in which current flows from the power supply VA to the glow plug 1.
  • a voltage drop when current flows through the parasitic diode 411 is much larger than a voltage drop when current flows through the on resistance of the reverse connection protection FET 41. Consequently, in a condition in which current is flowing from the power supply VA to the glow plug 1, little or no current flows through the parasitic diode 411 unless the reverse connection protection FET 41 is turned off.
  • the energizing FET 51 is provided in each glow plug 1, and the drain is connected to the drain of the reverse connection protection FET 41, while the source is connected to the glow plug 1.
  • an N-channel MOSFET is used as the energizing FET 51, and the energizing FET 51 is such that the on resistance thereof is very low (for example, several milliohms).
  • the energizing FET 51 has a parasitic diode 511 formed in parallel between the source and drain of the same energizing FET 51, and the parasitic diode 511 is in a reverse direction with respect to the direction in which current flows from the power supply VA to the glow plug 1.
  • the controller 61 controls energization of the glow plug 1 by the power supply VA, and is an ASIC including an energization signal output portion 62 which outputs signals for switching between energization and de-energization of the glow plug 1 to the gate of the energizing FET 51, a charge pump circuit (CP circuit) 63 with a voltage rise function, and a failure detection portion 64. Power for the controller 61 to operate inside the GCU 31 is supplied to the controller 61 from the power supply VA.
  • CP circuit charge pump circuit
  • the energization signal output portion 62 is controlled by the ECU 91, and inputs a rectangular energization signal (a PWM signal) indicating a timing of energization of the glow plug 1 by the power supply VA into the gate of the energizing FET 51. Specifically, when the glow plug 1 is energized by the power supply VA, a high signal is output to the energizing FET 51. Meanwhile, when stopping the energization of the glow plug 1 by the power supply VA, a low signal is output to the energizing FET 51.
  • the energization signal output portion 62 is connected to the charge pump circuit 63, and an energization signal output from the energization signal output portion 62 is raised in voltage by the charge pump circuit 63.
  • the charge pump circuit 63 is connected to the gate of the reverse connection protection FET 41 via a drive circuit 65 having predetermined transistor 651, diodes 652 and 653, and the like, and outputs a predetermined high voltage [for example, (a voltage output from the power supply VA)+10V] to the gate of the reverse connection protection FET 41.
  • the charge pump circuit 63 operates when an engine key (not shown) is turned on, and when the engine key is on, the reverse connection protection FET 41 is turned on by the charge pump circuit 63 and drive circuit 65 except when a failure of the energizing FET 51 is detected by the failure detection portion 64.
  • the output from the charge pump circuit 63 is turned off, as a result of which the reverse connection protection FET 41 is turned off.
  • the charge pump circuit 63 controller 61
  • the reverse connection protection FET 41 is turned off in the same way as when the engine key is in the off condition.
  • the parasitic diode 511 of the energizing FET 51 is in a forward direction with respect to a direction in which reverse current flows, but the reverse connection protection FET 41 is off, and the parasitic diode 411 thereof is in a reverse direction with respect to the direction in which the reverse current flows.
  • current is prevented from flowing through the parasitic diode 511 of the energizing FET 51, thus preventing an overheat failure of the energizing FET 51.
  • the failure detection portion 64 determines whether or not the energizing FET 51 is failed in an "ON condition", and outputs a result of the determination to the ECU 91. Specifically, when voltage across the energizing FET 51 is comparatively high at a timing at which the energizing FET 51 is turned off (that is, when the energizing FET 51 is energized despite being at an off timing), the failure detection portion 64 determines that the energizing FET 51 is failed while remaining in the ON condition (an "ON failure"), and sends a failure signal to the ECU 91.
  • the ECU 91 outputs an energization enable signal to the controller 61 at a normal time, but stops outputting the energization enable signal when receiving a failure signal.
  • the switch 71 includes a switching portion 72 and a signal detection portion 73.
  • the switching portion 72 includes a transistor or the like, and is interposed between the reverse connection protection FET 41 and charge pump circuit 63.
  • the switching portion 72 enables the gate voltage output from the charge pump circuit 63 to the reverse connection protection FET 41 to switch between on and off.
  • the signal detection portion 73 detects whether or not an energization enable signal is output from the ECU 91, and outputs a detection result signal to the switching portion 72. Specifically, when an energization enable signal is output from the ECU 91 (at the normal time), the signal detection portion 73 outputs a signal which turns on the switching portion 72 as a detection result signal. That is, when the energizing FET 51 is normal, the reverse connection protection FET 41 and charge pump circuit 63 are electrically connected, and the reverse connection protection FET 41 is turned on.
  • the signal detection portion 73 outputs a signal which turns off the switching portion 72 as a detection result signal. That is, when an ON failure occurs in the energizing FET 51, the electrical connection of the reverse connection protection FET 41 and charge pump circuit 63 is disconnected, and the reverse connection protection FET 41 is turned off. As a result of this, current flows to the parasitic diode 411 of the reverse connection protection FET 41.
  • an energization enable signal from the ECU 91 is stopped, but in this case, the energizing FET 51 is off in the event that the energizing FET 51 is normal. Because of this, no current flows between the power supply VA and glow plug 1, and it does not happen that the reverse connection protection FET 41 generates heat.
  • the fuse 81 is connected in series between the power supply VA and reverse connection protection FET 41, and as shown in Figs. 3(a) and 3(b) , is fixed to a substrate CB on which the reverse connection protection FET 41 and energizing FET 51 are disposed [the controller 61, the switch 71, a harness, and the like, are provided on the substrate CB, but in Figs. 3 (a) and 3 (b) , an illustration thereof is omitted for the sake of simplicity]. Also, in the embodiment, the fuse 81 is disposed on the reverse connection protection FET 41, and is in contact with the reverse connection protection FET 41 across an adhesive AD superior in both thermal resistance and thermal conductivity.
  • the heat of the reverse connection protection FET 41 is efficiently transferred to the fuse 81.
  • the fuse 81 does not melt down owing to heat generation (for example, up to the order of 175°C) of the reverse connection protection FET 41 or energizing FET 51 at a time of normal use, while when the reverse connection protection FET 41 is caused to generate heat by causing current to flow through the parasitic diode 411, the preset meltdown temperature of the fuse 81 is set to a predetermined temperature (for example, 200°C to 250°C) in such a way that the fuse 81 melts down owing to the heat generation (for example, up to the order of 300°C) of the reverse connection protection FET 41.
  • a predetermined temperature for example, 200°C to 250°C
  • the switching portion 72 is turned on, and the reverse connection protection FET 41 is also turned on.
  • the ON failure of the energizing FET 51 is detected by the failure detection portion 64, and a failure signal is output to the ECU 91.
  • the ECU 91 which has received the failure signal stops the output of the energization enable signal, as a result of which the switching portion 72 and thus the reverse connection protection FET 41 are turned off.
  • the reverse connection protection FET 41 being turned off, current flows through the parasitic diode 411 of the reverse connection protection FET 41, and the reverse connection protection FET 41 generates heat.
  • the reverse connection protection FET 41 As heretofore described in detail, according to the embodiment, as the reverse connection protection FET 41 is provided, it is possible to prevent continuous energization of the glow plug 1 when the power supply VA is connected in reverse.
  • the failure detection portion 64 when an ON failure of the energizing FET 51 is detected by the failure detection portion 64, current is caused to flow through the parasitic diode 411 to cause the reverse connection protection FET 41 to generate heat by turning off the reverse connection protection FET 41, and the fuse 81 is caused to melt down by the heat generation of the reverse connection protection FET 41, thus de-energizing the energizing FET 51. That is, the energizing FET 51 is de-energized based on the heat generation of the reverse connection protection FET 41, whose heat generation condition varies little, caused by causing current to flow through the parasitic diode 411, rather than the heat generation of the energizing FET 51 whose heat generation condition may vary according to a failure condition.
  • the fuse 81 is in contact with the reverse connection protection FET 41 across the adhesive AD superior in thermal conductivity, it is possible to efficiently transfer the heat of the reverse connection protection FET 41 to the fuse 81. Consequently, when an ON failure occurs in the energizing FET 51, it is possible to cause the fuse 81 to melt down swiftly, and furthermore, it is possible to promptly de-energize the energizing FET 51.
  • a metal glow plug having a heating coil it may happen that the heating coil is disconnected comparatively early by continuous energization accompanying an ON failure of an energizing FET, and the energizing FET is de-energized at a comparatively early point from the ON failure occurring.
  • a disconnection or the like of the glow plug 1 is unlikely to occur, and it is easy for current to flow through the energizing FET 51 over a long period (that is, it is easy for the energizing FET 51 to overheat).
  • the GCU 31 which can rapidly de-energize the energizing FET 51 when an ON failure occurs is particularly effective when used for a control of energization of the ceramic glow plug for which energization of the energizing FET 51 for a long period is a concern.
  • the fuse 81 is used as the protection portion, but in the second embodiment, as shown in Fig. 4 and Figs. 5(a) to 5 (c) [in Figs. 5(a) to 5(c) , in the same way as in Figs. 3 (a) and 3 (b) , the controller 61 and the like are omitted from the illustration for the sake of simplicity of illustration], a mechanism including a conducting portion 102 and a biasing portion 103 is used as a protection portion 101.
  • the conducting portion 102 is formed from a conductive metallic plate (for example, a copper plate) superior in thermal resistance. Also, the conducting portion 102, by being fixed to the back surface of the substrate CB by predetermined solders 104 disposed on the substrate CB, is interposed in an electricity supply path between the power supply VA and reverse connection protection FET 41.
  • a conductive metallic plate for example, a copper plate
  • the solders 104 are such that the constituent material, disposal position, volume, and the like, are set in such a way that the solders 104 do not melt owing to the heat generation of the reverse connection protection FET 41 or energizing FET 51 at the time of normal use, while the solders 104, when the reverse connection protection FET 41 is caused to generate heat by causing current to flow through the parasitic diode 411, melt owing to the heat generation.
  • the biasing portion 103 is configured of a predetermined spring member, and one end thereof is in contact with the conducting portion 102 through a hole portion HO formed in the substrate CB, while the other end is fixed to a casing CA to which the substrate CB is attached. Also, the biasing portion 103 is provided between the conducting portion 102 and casing CA in a condition in which it is compressed in a longitudinal direction, and biases the conducting portion 102 toward a side away from the electricity supply path between the power supply VA and reverse connection protection FET 41.
  • the reverse connection protection FET 41 when an ON failure occurs in the energizing FET 51, the reverse connection protection FET 41 is turned off, and current is caused to flow through the parasitic diode 411, in the same way as in the first embodiment. Because of this, the reverse connection protection FET 41 reaches a high temperature, meaning that the solders 104 melt, the conducting portion 102 becomes detached from the substrate CB, and the conducting portion 102 is separated from the substrate CB by a biasing force from the biasing portion 103. As a result of this, the electrical connection of the power supply VA and energizing FET 51 is disconnected, and the energization of the energizing FET 51 is stopped.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Dc-Dc Converters (AREA)
  • Power Conversion In General (AREA)
  • Control Of Transmission Device (AREA)
EP20120156200 2011-02-21 2012-02-20 Anregungssteuerungseinheit für Zündkerzen Withdrawn EP2489871A2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011034337A JP5667468B2 (ja) 2011-02-21 2011-02-21 グロープラグの通電制御装置

Publications (1)

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EP2489871A2 true EP2489871A2 (de) 2012-08-22

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JP (1) JP5667468B2 (de)
KR (1) KR101562425B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3109458A1 (de) * 2015-06-25 2016-12-28 NGK Spark Plug Co., Ltd. Vorrichtung und verfahren zur regelung der leistungsversorgung einer glühkerze
EP3021485B1 (de) * 2013-08-30 2018-11-14 AutoNetworks Technologies, Ltd. Halbleiterbauelement

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Publication number Priority date Publication date Assignee Title
JP5884694B2 (ja) * 2012-09-20 2016-03-15 株式会社デンソー 半導体装置
JP6359324B2 (ja) * 2014-04-23 2018-07-18 日本特殊陶業株式会社 制御装置
KR101666569B1 (ko) 2015-10-07 2016-10-17 울산과학기술원 저전력 can 송수신기
KR101702435B1 (ko) 2016-09-09 2017-02-06 울산과학기술원 저전력 can 송수신기 제어 방법

Citations (2)

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Publication number Priority date Publication date Assignee Title
WO2008108330A1 (ja) 2007-03-05 2008-09-12 Bosch Corporation グロープラグ駆動装置
DE102005040308B4 (de) 2005-08-24 2009-05-07 Magna Electronics Europe Gmbh & Co.Kg Thermosicherung, insbesondere für ein Leistungsmodul eines Kraftfahrzeugs, sowie Leistungsmodul mit einer derartigen Thermosicherung

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JP4065181B2 (ja) * 2002-11-12 2008-03-19 日信工業株式会社 電気部品駆動回路
JP4637001B2 (ja) * 2005-10-28 2011-02-23 三洋電機株式会社 保護素子とこの保護素子を備えるパック電池
JP5117917B2 (ja) * 2008-04-21 2013-01-16 デクセリアルズ株式会社 保護素子及びその製造方法
JP5091918B2 (ja) * 2009-06-17 2012-12-05 日本特殊陶業株式会社 グロープラグの通電制御装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005040308B4 (de) 2005-08-24 2009-05-07 Magna Electronics Europe Gmbh & Co.Kg Thermosicherung, insbesondere für ein Leistungsmodul eines Kraftfahrzeugs, sowie Leistungsmodul mit einer derartigen Thermosicherung
WO2008108330A1 (ja) 2007-03-05 2008-09-12 Bosch Corporation グロープラグ駆動装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3021485B1 (de) * 2013-08-30 2018-11-14 AutoNetworks Technologies, Ltd. Halbleiterbauelement
EP3109458A1 (de) * 2015-06-25 2016-12-28 NGK Spark Plug Co., Ltd. Vorrichtung und verfahren zur regelung der leistungsversorgung einer glühkerze
US9816477B2 (en) 2015-06-25 2017-11-14 Ngk Spark Plug Co., Ltd. Apparatus and method for controlling power supply to glow plug

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KR20120095807A (ko) 2012-08-29
JP5667468B2 (ja) 2015-02-12
KR101562425B1 (ko) 2015-10-21
JP2012172568A (ja) 2012-09-10

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