EP1440230B1 - Vorrichtung zum schutz einer elektronischen schaltung - Google Patents

Vorrichtung zum schutz einer elektronischen schaltung Download PDF

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Publication number
EP1440230B1
EP1440230B1 EP02758111A EP02758111A EP1440230B1 EP 1440230 B1 EP1440230 B1 EP 1440230B1 EP 02758111 A EP02758111 A EP 02758111A EP 02758111 A EP02758111 A EP 02758111A EP 1440230 B1 EP1440230 B1 EP 1440230B1
Authority
EP
European Patent Office
Prior art keywords
housing
electronic circuit
throttle valve
protecting
electronic
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.)
Expired - Lifetime
Application number
EP02758111A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1440230A1 (de
Inventor
Thomas Wizemann
Stefan Josten
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1440230A1 publication Critical patent/EP1440230A1/de
Application granted granted Critical
Publication of EP1440230B1 publication Critical patent/EP1440230B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/3005—Details not otherwise provided for

Definitions

  • a structural unit for a throttle actuator of a drive motor which comprises a housing arranged in a drive motor, arranged on a shaft throttle and a position sensor for detecting the position of the throttle valve. Position sensor and drive motor are connected to the throttle shaft. About connectors, the drive signals of the unit are supplied and returned the determined position signals.
  • the position sensor is at least one potentiometer.
  • the unit is installed in the intake manifold of the internal combustion engine.
  • the electronic circuits that provide measured signal values with a predetermined accuracy, in dependence of which a control function for engine, brake or vehicle control is calculated, must be protected against EMC radiation and ESD pulses.
  • electrostatic charges of the housing of the aggregate e.g. created by the flow of air, derived.
  • the protection of the electronic circuit in particular an integrated circuit, provided with only one component.
  • several ICs which have a common connection, for example a common ground connection, can be protected together with a component.
  • the smaller number of components in addition to the effective protection of the circuit also improves the availability and cost, since the low number of electrical components, the risk of failure and the amount of costs is reduced.
  • FIG. 1 shows a preferred embodiment of a throttle valve actuator, in whose housing, inter alia, an electronic circuit, e.g. the evaluation of a position sensor is housed.
  • Figure 2 shows a preferred embodiment of a circuit for protecting such an electronic circuit.
  • FIG. 1 shows a suction pipe 1, in which a throttle body 2 is installed.
  • the body of this throttle body is made of metal. It is electrically isolated, for example with respect to the intake manifold (if the intake manifold made of plastic), internal combustion engine or vehicle body, stored.
  • the throttle body includes a throttle valve 3 mounted on a shaft 4.
  • This shaft 4 is further connected to the drive shaft of an electric motor 5, which rotates by rotation in one direction or the other, the drive shaft and thus the throttle valve 3.
  • the opening cross section of the suction pipe is changed.
  • at least one position sensor 6, 7 is mounted on the shaft, as shown schematically in FIG. These detect either potentiometrically or without contact (for example, according to the Hall principle) the position of the shaft 4 and thus of the throttle valve 3.
  • the position sensor 6, 7 comprises an electronic circuit 8, 9, which evaluates the measured signal detected by the sensor.
  • the electrical circuit is electrically isolated from the housing of the throttle body.
  • the electronic circuits are implemented in the preferred embodiment as integrated circuits, in other embodiments as discrete circuits.
  • two position sensors 6 and 7 are provided.
  • an electronic control unit 10 which comprises in one embodiment at least one microcomputer which outputs control signals for actuating the electric motor 5 according to its implemented programs, in accordance with measuring signals from measuring devices 16 to 20 supplied via input lines 11 to 15.
  • the control unit 10 does not include a microcomputer, but other means for forming drive signals. These drive signals are fed via the drive lines 21 and 22 to the electric motor 5.
  • the electronic circuits 8 and 9 and optionally the sensors 6 and 7 are supplied by the control unit 10 via the lines 23 and 24 with energy.
  • the line 23 represents the Connection to the positive pole of a voltage source, while the line 24 represents a ground connection. Positive pole and earth connection correspond to the corresponding connections of the control unit 10.
  • the processed measurement signals of the sensors 6 and 7 are supplied from the electronic circuits 8 and 9 via lines 25 and 26 to the electronic control unit 10, which signals in the context of the control Throttle 3 or other functions considered. Sensors and electronic circuits are electrically isolated from the housing of the throttle valve actuator.
  • the ground connection and / or the positive connection is not made from the control unit, but from other components or directly from a voltage source.
  • an electrical device such as a voltage dependent resistor, e.g. a varistor, or components such as diodes, spark gaps, capacitors clip between the housing of the throttle and inserted a suitable terminal, e.g. the ground terminal of the at least one electronic circuit.
  • a protection exclusively against ESD pulses is achieved with two Zener diodes connected in series in the opposite direction.
  • FIG. An example of this is shown in FIG. There, the sensors 6 and 7 and the electronic circuits 8 and 9 are shown as integrated circuits IC1 and IC2 and interconnected in the manner shown in Figure 1. Between the ground line 23 of the electronic circuits and the housing 2 of the throttle body is a voltage-dependent resistor 100 introduced. Electrostatic charges of the housing 2 are accordingly dissipated via the varistor 100 to ground, while electrostatic pulses and electromagnetic radiation are dissipated into the electronic circuits via the varistor 100.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Amplifiers (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
EP02758111A 2001-10-20 2002-07-23 Vorrichtung zum schutz einer elektronischen schaltung Expired - Lifetime EP1440230B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10152252 2001-10-20
DE10152252A DE10152252A1 (de) 2001-10-20 2001-10-20 Vorrichtung zum Schutz einer elektronischen Schaltung
PCT/DE2002/002694 WO2003038257A1 (de) 2001-10-20 2002-07-23 Vorrichtung zum schutz einer elektronischen schaltung

Publications (2)

Publication Number Publication Date
EP1440230A1 EP1440230A1 (de) 2004-07-28
EP1440230B1 true EP1440230B1 (de) 2007-07-25

Family

ID=7703422

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02758111A Expired - Lifetime EP1440230B1 (de) 2001-10-20 2002-07-23 Vorrichtung zum schutz einer elektronischen schaltung

Country Status (5)

Country Link
US (1) US7212388B2 (ja)
EP (1) EP1440230B1 (ja)
JP (1) JP3978182B2 (ja)
DE (2) DE10152252A1 (ja)
WO (1) WO2003038257A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2355312A2 (de) 2010-02-05 2011-08-10 Continental Automotive GmbH Entstöranordnung eines Stellglieds mit einem Elektromotor

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7359789B2 (en) * 2004-11-01 2008-04-15 Robert Bosch Gmbh Control system for an internal combustion engine and a vehicle having the same
US7751163B2 (en) 2006-09-29 2010-07-06 Qimonda Ag Electric device protection circuit and method for protecting an electric device
CN102346723A (zh) * 2010-08-03 2012-02-08 鸿富锦精密工业（深圳）有限公司 调试接口电路和具有该调试接口电路的电子装置
JP6242731B2 (ja) * 2014-03-31 2017-12-06 日本電産サンキョー株式会社 電子機器装置
DE102015000380A1 (de) * 2015-01-13 2016-07-14 Wabco Gmbh Sensoreinheit, Sensier- und Auswertevorrichtung mit einer derartigen Sensoreinheit sowie Kraftfahrzeug oder Anhänger damit und Verfahren zum Schützen einer Auswerteeinrichtung

Family Cites Families (15)

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Publication number Priority date Publication date Assignee Title
US4862311A (en) * 1988-04-12 1989-08-29 Reliance Comm/Tec Corporation Overvoltage protector for use with data cables
JP2749967B2 (ja) * 1990-07-02 1998-05-13 三菱電機株式会社 機関のアイドル位置検出スイッチ及びその製造方法
JPH04171251A (ja) 1990-11-05 1992-06-18 Aisan Ind Co Ltd 電子制御式燃料噴射装置
US5270645A (en) * 1991-08-30 1993-12-14 Nartron Corporation Linear-output, temperature-stable rotational sensor including magnetic field responsive device disposed within a cavity of a flux concentrator
JP3206204B2 (ja) * 1992-05-22 2001-09-10 株式会社デンソー スロットルポジションセンサ
DE4241020A1 (de) 1992-12-05 1994-06-09 Bosch Gmbh Robert Drehsteller für Drosselklappe
DE4310860A1 (de) * 1993-04-02 1994-10-06 Bosch Gmbh Robert Elektromagnetischer Verträglichkeits(EMV)-Filter in Hybridtechnologie
US5399099A (en) * 1993-08-12 1995-03-21 The Whitaker Corporation EMI protected tap connector
DE4334963C2 (de) 1993-10-13 2002-08-22 Bosch Gmbh Robert Einrichtung zur Steuerung der Antriebsleistung eines Fahrzeugs bzw. Stellungserfassungsorgan für wenigstens ein Bedienelement in Verbindung mit einer Steuerung der Antriebsleistung eines Fahrzeugs
US5639989A (en) * 1994-04-19 1997-06-17 Motorola Inc. Shielded electronic component assembly and method for making the same
DE19508625C1 (de) * 1995-03-10 1996-06-05 Audi Ag Ableitung elektrostatischer Aufladungen an einem elektrisch isoliert gelagerten Drosselklappenstutzen einer Brennkraftmaschine
US5745324A (en) * 1996-11-20 1998-04-28 Greenspring Computers, Inc. Electrostatic discharge and excessive voltage protection circuit
US6140574A (en) * 1997-09-22 2000-10-31 Itt Manufacturing Enterprises, Inc. Method and apparatus for plated EMI housing with integrated positive contact
US6209398B1 (en) * 1998-09-18 2001-04-03 Texas Instruments Incorporated Fluid pressure transducer apparatus and method for assembling
EP1167724B1 (en) * 1999-03-29 2004-05-26 Hitachi, Ltd. Electronically controlled throttle device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2355312A2 (de) 2010-02-05 2011-08-10 Continental Automotive GmbH Entstöranordnung eines Stellglieds mit einem Elektromotor
DE102010007155A1 (de) 2010-02-05 2011-08-11 Continental Automotive GmbH, 30165 Entstöranordnung eines Stellglieds mit einem Elektromotor

Also Published As

Publication number Publication date
WO2003038257A1 (de) 2003-05-08
JP2005507050A (ja) 2005-03-10
DE10152252A1 (de) 2003-04-30
DE50210568D1 (de) 2007-09-06
JP3978182B2 (ja) 2007-09-19
US7212388B2 (en) 2007-05-01
EP1440230A1 (de) 2004-07-28
US20040252437A1 (en) 2004-12-16

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