EP1440230A1 - Vorrichtung zum schutz einer elektronischen schaltung - Google Patents
Vorrichtung zum schutz einer elektronischen schaltungInfo
- Publication number
- EP1440230A1 EP1440230A1 EP02758111A EP02758111A EP1440230A1 EP 1440230 A1 EP1440230 A1 EP 1440230A1 EP 02758111 A EP02758111 A EP 02758111A EP 02758111 A EP02758111 A EP 02758111A EP 1440230 A1 EP1440230 A1 EP 1440230A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- electronic circuit
- throttle valve
- connection
- protecting
- 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.)
- Granted
Links
- 230000001419 dependent effect Effects 0.000 claims abstract description 6
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 5
- 238000011156 evaluation Methods 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 230000005670 electromagnetic radiation Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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
- EMC radiation electromagnetic Tolerance
- an assembly for an actuator for a throttle valve of a drive motor which comprises a drive motor arranged in a housing, a throttle valve arranged on a shaft and a position sensor for detecting the position of the throttle valve.
- the position sensor and drive motor are connected to the throttle valve shaft.
- the control signals are fed to the module via plug connections and the determined position signals are fed back.
- the position sensor is at least one potentiometer.
- the assembly is installed in the intake manifold of the internal combustion engine.
- the electronic circuits which deliver measurement signal values with a specified accuracy, depending on which a control function for engine, brake or vehicle control is calculated, must be protected against EMC radiation and ESD pulses.
- electrostatic charges on the housing of the unit e.g. created by the air flow.
- the protection of the electronic circuit, in particular of an integrated circuit, is particularly advantageously circle, provided with only one component.
- several ICs which have a common connection, for example a common ground connection can also be protected together with one component.
- the smaller number of components also improves the availability and the outlay because the small number of electrical components reduces the risk of failures and the amount of the costs.
- FIG. 1 shows a preferred embodiment of a throttle valve actuator, in the housing of which, among other things, an electronic circuit, e.g. the evaluation electronics of a position sensor is housed.
- Figure 2 shows a preferred embodiment of a circuit for protecting such an electronic circuit.
- FIG. 1 shows an intake manifold 1, in which a throttle valve 2 is installed.
- the housing of this throttle body is made of metal. It is electrically insulated, e.g. against the intake manifold (if the intake manifold is made of plastic), internal combustion engine or vehicle body.
- the throttle valve assembly comprises a throttle valve 3 which is fastened on a shaft 4.
- This shaft 4 is also connected to the drive shaft of an electric motor 5, which rotates the drive shaft and thus the throttle valve 3 by rotating in one direction or the other. In this way, the opening cross section of the intake manifold is changed.
- at least one position sensor 6, 7 is attached to the shaft. These detect either the position of the shaft 4 and thus the position either potentiometrically or without contact (for example according to the Hall principle)
- Throttle valve 3 The position sensor 6, 7 comprises an electronic circuit 8, 9 which evaluates the measurement signal detected by the sensor.
- the electrical circuit is electrically isolated from the housing of the throttle valve assembly.
- the electronic circuits are designed as integrated circuits, in another embodiment also as discrete circuits.
- two position sensors 6 and 7 are provided.
- an electronic control unit 10 which in one exemplary embodiment comprises at least one microcomputer, which outputs control signals for actuating the electric motor 5 in accordance with the measurement signals supplied by input lines 11 to 15 from measuring devices 16 to 20 in accordance with its implemented programs.
- the control unit 10 does not include a microcomputer, but other means for generating control signals. These control signals are fed to the electric motor 5 via the control lines 21 and 22.
- the electronic circuits 8 and 9 and optionally the sensors 6 and 7 are supplied with energy by the control unit 10 via the lines 23 and 24.
- the line 23 in the exemplary embodiment shown Connects to the positive pole of a voltage source, while line 24 represents a ground connection. The positive pole and the ground connection correspond to the corresponding connections of the control unit 10.
- the processed measurement signals from the sensors 6 and 7 are emitted by the electronic circuits 8 and 9 via lines 25 and 26 to the electronic control unit 10, which transmit these signals as part of the control of the Throttle valve 3 or other functions are taken into account.
- Sensors and electronic circuits are electrically insulated 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 component such as a voltage dependent resistor, e.g. a varistor, or components such as diodes, spark gaps, capacitors between the housing of the throttle valve and a suitable connection, e.g. the ground connection of the at least one electronic circuit. Protection against ESD pulses is achieved with two Zener diodes connected in series in opposite directions.
- FIG. 2 An example of this is shown in FIG. 2.
- the sensors 6 and 7 and the electronic circuits 8 and 9 are shown as integrated circuits IC1 and IC2 and connected in the manner shown in FIG. 1.
- the device according to the invention has been described above with reference to a preferred exemplary embodiment of a throttle valve actuator.
- an electronic circuit that is installed in an electrically insulated housing in a unit and does not use the unit housing as a ground connection is used accordingly.
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)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims
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 true EP1440230A1 (de) | 2004-07-28 |
EP1440230B1 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 (de) |
EP (1) | EP1440230B1 (de) |
JP (1) | JP3978182B2 (de) |
DE (2) | DE10152252A1 (de) |
WO (1) | WO2003038257A1 (de) |
Families Citing this family (6)
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 |
DE102010007155A1 (de) | 2010-02-05 | 2011-08-11 | Continental Automotive GmbH, 30165 | Entstöranordnung eines Stellglieds mit einem Elektromotor |
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)
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 |
WO2000058614A1 (fr) * | 1999-03-29 | 2000-10-05 | Hitachi, Ltd. | Dispositif d'etranglement commande de maniere electronique |
-
2001
- 2001-10-20 DE DE10152252A patent/DE10152252A1/de not_active Withdrawn
-
2002
- 2002-07-23 US US10/492,958 patent/US7212388B2/en not_active Expired - Fee Related
- 2002-07-23 WO PCT/DE2002/002694 patent/WO2003038257A1/de active IP Right Grant
- 2002-07-23 DE DE50210568T patent/DE50210568D1/de not_active Expired - Lifetime
- 2002-07-23 JP JP2003540504A patent/JP3978182B2/ja not_active Expired - Fee Related
- 2002-07-23 EP EP02758111A patent/EP1440230B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO03038257A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1440230B1 (de) | 2007-07-25 |
DE10152252A1 (de) | 2003-04-30 |
US7212388B2 (en) | 2007-05-01 |
JP2005507050A (ja) | 2005-03-10 |
JP3978182B2 (ja) | 2007-09-19 |
WO2003038257A1 (de) | 2003-05-08 |
US20040252437A1 (en) | 2004-12-16 |
DE50210568D1 (de) | 2007-09-06 |
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