WO1994001308A1 - Circuit pour systeme essuie-glace et lave-vitre de vehicules a moteur - Google Patents

Circuit pour systeme essuie-glace et lave-vitre de vehicules a moteur Download PDF

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Publication number
WO1994001308A1
WO1994001308A1 PCT/EP1993/001706 EP9301706W WO9401308A1 WO 1994001308 A1 WO1994001308 A1 WO 1994001308A1 EP 9301706 W EP9301706 W EP 9301706W WO 9401308 A1 WO9401308 A1 WO 9401308A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit arrangement
switch
arrangement according
circuit
wiper
Prior art date
Application number
PCT/EP1993/001706
Other languages
German (de)
English (en)
Inventor
Norbert Normann
Gunter Lothar Schulze
Günter Uhl
Original Assignee
Doduco Gmbh & Co. Dr. Eugen Dürrwächter
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 Doduco Gmbh & Co. Dr. Eugen Dürrwächter filed Critical Doduco Gmbh & Co. Dr. Eugen Dürrwächter
Publication of WO1994001308A1 publication Critical patent/WO1994001308A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
    • B60S1/48—Liquid supply therefor
    • B60S1/481—Liquid supply therefor the operation of at least part of the liquid supply being controlled by electric means
    • B60S1/482—Liquid supply therefor the operation of at least part of the liquid supply being controlled by electric means combined with the operation of windscreen wipers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven

Definitions

  • the invention relates to a circuit arrangement with the features specified in the preamble of claim 1.
  • Such a circuit arrangement is known from DE-OS 39 22 230.
  • An electrical windshield wiper and washer system in motor vehicles usually includes a wiper motor for pivoting the wiper arms; a limit switch assigned to the wiper motor, sometimes also referred to as a parking switch, which is located in the circuit of the wiper motor and is controlled by the latter or by a linkage driven by the wiper motor in such a way that it opens in one end position of the windshield wipers and in any other position Wiper is closed, which ensures that the windshield wiper continues to run into that one end position after being switched off; at least one washing pump, with which water or a special washing liquid can be sprayed onto the pane to be cleaned; possibly a control circuit for interval operation of the wiper (hereinafter referred to as interval switching); and a multiple control switch for actuating the above-mentioned components, which is usually attached to the longitudinal column or in the immediate vicinity of the steering wheel on the dashboard.
  • a limit switch assigned to the wiper motor sometimes also referred to as a parking switch, which is located in the circuit of the wiper motor and is controlled
  • the wiper motor In the usual type of electrical installation of the windshield wipers and washers in motor vehicles, the wiper motor is combined with the limit switch to form one structural unit; Otherwise, the components mentioned are connected to one another by numerous electrical lines in order to be able to carry out the different functions for the wiping operation, for the washing operation and for the interval wiping operation.
  • six lines lead to the multiple switch, six lines to the interval switch, five lines to the unit formed from the wiper motor and the limit switch, and two lines to the wash pump.
  • numerous lines have to be laid, with the exception of the control line between the multiple switch and the interval switch, all lines carry the load current of the wiper motor or the washing pump and must accordingly have a sufficiently large line cross section.
  • DE-OS 39 22 230 has therefore already proposed that the load current for the wiper motor and for the wash pump no longer be conducted via the multiple operating switch, but rather to provide separate load switches which are combined in a switching module which is connected to the Wiper motor combined into a common assembly and is controlled by the multiple control switch, so that only weak control currents have to be transmitted between the latter and the switching module via correspondingly thin lines. This reduces the wiring effort.
  • the object of the present invention is to improve a circuit arrangement of the type mentioned at the outset in such a way that further simplification of the wiring in the motor vehicle can be achieved in the most economical manner possible.
  • an interval switch and the various load switches for the windshield wiper and washer system are not combined in a common switching module and combined with the wiper motor to form an assembly, rather a uniform control device is introduced, which is accommodated separately from the wiper motor.
  • This control device is connected on the one hand only via control lines to the operating switch and on the other hand only via a single-wire line to a switching module which Load switch for the wiper motor and the washing pump contains and is preferably combined with the wiper motor to form a module.
  • This structure is outstandingly suitable for incorporating further end devices into a central control system, in particular further end devices for producing good visibility in the vehicle, namely the rear window wiping and washing system, the rear window heating and a headlight wiping and washing system as well as the lamps of the vehicle's lighting system. All of these terminal devices can be controlled via one and the same control device, so that only control lines, but no lines carrying load current, have to originate from the operating switches assigned to them.
  • the different switch positions in the switch modules are assumed in that the switch modules are supplied with correspondingly coded signals from the control unit via the single-wire lines, no complex digital data bus being required for this, rather a simple analog coding is sufficient because the number of data which is to be transmitted (in contrast to a digital motor control) is only slight and does not have to be transmitted particularly quickly and in a particularly dense succession of times. It is therefore sufficient and preferred that the control unit contains a driver which generates graduated analog DC voltage signals and applies them to the single-wire lines and that the respective switching module to which the respective leads single-wire line, has a detection circuit for such voltage signals. An example of this is described in DE-OS 29 44 224. By means of such an analog coding, as described in DE-OS 29 44 224, several control signals can also be transmitted from the operating switches via a common line to the control device.
  • the control unit receives feedback about the switching states assumed in the switching modules.
  • a feedback switch is preferably provided in the switching modules, which has the effect that a predetermined direct current signal is fed into the single-wire line in response to a changed direct voltage signal and that the control unit contains a current measuring element and an evaluation circuit assigned to it.
  • the direct current signal can be generated by changing the ohmic load on the single-wire line as a function of the switching state, as a result of which the current in the single-wire line also changes in conjunction with the control voltage.
  • the single-wire line impressed by the feedback switch as a function of the switching state of the switching module, a current from a separate direct current source (battery).
  • control lines can be connected to the control device, but also the outputs of sensors with which the control can be influenced, e.g. a rain sensor that controls the switching on and off of the wiper motor and / or the pause time of the interval switching, or a speed sensor that controls the pause time of the interval switching and / or the wiping speed as a function of the vehicle speed.
  • sensors with which the control can be influenced e.g. a rain sensor that controls the switching on and off of the wiper motor and / or the pause time of the interval switching, or a speed sensor that controls the pause time of the interval switching and / or the wiping speed as a function of the vehicle speed.
  • the more terminal devices are controlled via the uniform control device, the more the wiring of the vehicle is simplified and the greater the advantage of the invention.
  • FIG. 1 shows a block diagram of a wiper-wash system according to the invention
  • FIG. 2 shows various control voltage signals
  • FIG. 3 shows a feedback signal.
  • the circuit arrangement shown in Figure 1 comprises a control device 1 with a connection 2 for connection to the vehicle battery and with a ground connection 3.
  • a first output of the control device 1 is via a single-wire line 4 with a switching module 5 for a windshield wiper and washer and a second output is connected via a further single-wire line 6 to a switching module 7 for a rear window wiper and washer device.
  • Another output of the control unit 1 is connected via a single-wire line 8 to a further switching module, not shown anymore, for example for a headlight wiping and washing system.
  • the switching module 5 has a connection 9 for the vehicle battery and a ground connection 10.
  • the switching module 7 has a connection 11 for the vehicle battery and a ground connection 12.
  • Outputs of the switching module 5 are provided with a wiper motor 13 and a parking switch 14 coupled to it connected to a washing pump 15.
  • Outputs of the switching module 7 are connected to a wiper motor 16 with a parking switch 17 coupled to it, to a washing pump 18 and to a heating device 19, the switching modules 5 and 7 and the wiper motors connected to them as terminals are connected via the power connections 9 and 11 13 and 16, washing pumps 15 and 18 and the rear window heating device 19 are supplied with current.
  • the various functions for cleaning the front window and rear window are selected by an operating switch 20 with a plurality of switch positions. This switch 20 is connected to an input of control device 1 via one or more control lines 20a.
  • a switch 23 for the rear window heating device is connected to a further input of the control device 1 via a control line 23a, control signals run in both directions via the control line 23a, towards the control device 1 for switching the rear window heating on and off, and towards the switch 23, to switch on a control lamp there when the heating is switched on.
  • a sensor 21 for the driving speed is connected via a control line 21a, a rain sensor 22 via a line 22a and a parking light sensor 24 via a control line 24a.
  • the communication between the control unit and the switching modules 5 and 7 for setting one of these switching states in the respective switching module takes place via the single-wire lines 4 and 6 with the aid of analog coded voltage signals as shown in FIG. 2:
  • the first switching state corresponds to the DC voltage 0, which second switching state the DC voltage 25%, the third switching state 50%, the fourth switching state 75% and the fifth switching state 100% of the supply voltage (battery voltage) of the vehicle.
  • These voltage levels are made available by a driver circuit provided in control unit 1.
  • the switching modules 5 and 7 contain a detection and evaluation circuit which is able to recognize the respective voltage level and to switch the load switches for setting the desired switching state.
  • the switching modules 5 and 7 contain a feedback circuit which changes the ohmic load on the single-wire line 4 and 6 depending on the switching status. With that changes the current strength in the single-wire lines 4 and 6 (see FIG. 3), which can be measured and evaluated by a current measuring device provided in the control unit 1.
  • the communication between the switch 20 and the control device 1 can either take place via a plurality of parallel lines 20a, via which a signal is transmitted in each case, or via a line 20a via which a number of analog-coded DC voltage signals are transmitted, similarly to the single-wire lines 4 and 6.
  • the control device 1 also contains a known, e.g. the interval circuit described in EP-B-0 283 005, which allows the pause time between two wiping processes and possibly the wiping speed to be controlled, this control being able to take place with the aid of sensors 21 and 22 depending on the driving speed and the precipitation.
  • the interval switching means that a headlamp wiper and washer system can also be switched on when the parking light sensor 24 signals that the vehicle is being driven with light.
  • a serial interface 25 is also provided on control unit 1 for connection to a general data bus in the vehicle.
  • the invention has a number of advantages; in that only the most essential components for switching load currents for various end devices are combined in switching modules and combined with one end device to form an assembly, all other control tasks, however, can be carried out by a uniform control device for all switching modules with which the control device is only connected via single-wire lines, this results in a fairly simple installation with only a few lines. Communication can take place via analog signals and only requires simple, conventional evaluation electronics, but no microprocessor. Because of the use of analog coded signals, there are no EMC problems due to the emission of interference signals; rather, interference suppression is easily possible with the methods known in automotive engineering. By dispensing with unnecessary digitization, the control can be implemented cost-effectively.
  • the load currents can be switched both by electromechanical relays and by electronic switches (power semiconductors).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Control Of Direct Current Motors (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

Un système essuie-glace et lave-vitre pour la vitre avant et la vitre arrière, ainsi que d'autres appareils à approvisionner en courant de charge et chargés d'assurer une bonne visibilité de l'intérieur du véhicule (chauffage de la vitre arrière, système de lavage et d'essuyage des phares, le cas échéant les lampes également) sont commandés par un appareil unique de commande (1) qui est relié d'une part par des lignes de commande (20a, 21a, 22a, 23a, 24a) aux commutateurs de commande correspondants (20-24) et d'autre part uniquement par des lignes de commande à un seul conducteur (4, 6) à des modules commutateurs (5, 7) qui contiennent les rupteurs, qui comprennent chacun plusieurs états de commutation et qui sont assemblés chacun avec un des appareils terminaux (13, 15, 16, 18, 19) de manière à former un sous-ensemble.
PCT/EP1993/001706 1992-07-04 1993-07-02 Circuit pour systeme essuie-glace et lave-vitre de vehicules a moteur WO1994001308A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924221972 DE4221972C2 (de) 1992-07-04 1992-07-04 Schaltungsanordnung für eine Scheibenwisch- und -waschanlage in Kraftfahrzeugen
DEP4221972.8 1992-07-04

Publications (1)

Publication Number Publication Date
WO1994001308A1 true WO1994001308A1 (fr) 1994-01-20

Family

ID=6462466

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1993/001706 WO1994001308A1 (fr) 1992-07-04 1993-07-02 Circuit pour systeme essuie-glace et lave-vitre de vehicules a moteur

Country Status (2)

Country Link
DE (1) DE4221972C2 (fr)
WO (1) WO1994001308A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996010500A1 (fr) * 1994-09-30 1996-04-11 Itt Automotive Electrical Systems, Inc. Interface de module de commande de temporisation automatique pour essuie-glace
WO1996011823A1 (fr) * 1994-10-13 1996-04-25 Itt Automotive Electrical Systems, Inc. Systeme et procede de raccordement multiplexe pour la commande d'un essuie-glace
WO1996030237A1 (fr) * 1995-03-30 1996-10-03 Wynn Marine Ltd. Commande d'essuie-glaces
GB2315995A (en) * 1995-03-30 1998-02-18 Wynn Marine Ltd Windscreen wiper control
CN105730375A (zh) * 2016-01-28 2016-07-06 叶少甘 一种车载负载电源控制系统

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DE4427171C2 (de) * 1994-08-01 1996-08-01 Daimler Benz Ag Verfahren und Vorrichtung zum Betrieb einer Scheibenwisch/waschanlage
DE19511755C1 (de) * 1995-03-30 1996-08-22 Framatome Connectors Int Multiplex-Steuerung von Komponenten bzw. Untersystemen in Kraftfahrzeugen
DE19856176C2 (de) * 1998-12-05 2002-07-18 Siemens Ag Scheibenreinigungsanlage für ein Kraftfahrzeug
DE19860673A1 (de) 1998-12-29 2000-07-06 Bosch Gmbh Robert Wischvorrichtung, insbesondere für eine Kraftfahrzeugscheibe
DE19906095A1 (de) * 1999-02-13 2000-08-17 Opel Adam Ag Schaltungsanordnung zur elektrischen Vernetzung von Sensoren und/oder Aktoren in einem Kraftfahrzeug
DE19927928C2 (de) * 1999-06-18 2001-08-09 Daimler Chrysler Ag Verfahren zur Ansteuerung des Heckscheibenwischers eines Kraftfahrzeugs
DE19957029A1 (de) * 1999-11-26 2001-05-31 Opel Adam Ag Schaltungsanordnung für Front- und Heckscheibenwischer von Kraftfahrzeugen
DE10304636B4 (de) * 2003-02-04 2015-02-12 Hella Kgaa Hueck & Co. System zur Bestromung elektrischer Verbraucher in einem Kraftfahrzeug
DE10316694A1 (de) * 2003-04-10 2004-10-28 Intedis Gmbh & Co. Kg Leitungssystem in einem Fahrzeug
DE102013205793A1 (de) 2013-04-02 2014-10-02 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Steuern eines Wisch-Wasch-Vorgangs einer Heckscheiben-Reinigungsanlage eines Kraftfahrzeugs
DE102013220109A1 (de) * 2013-10-02 2015-04-16 Knorr-Bremse Gmbh Steuergerät für ein Scheibenwischersystem für ein Schienenfahrzeug und Verfahrenzum Betreiben eines Scheibenwischersystems für ein Schienenfahrzeug

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US4122357A (en) * 1976-02-13 1978-10-24 Toyo Kogyo Co., Ltd. Wiring system for motor vehicle
FR2453443A1 (fr) * 1979-04-04 1980-10-31 Hitachi Ltd Procede et appareil de commande d'equipements d'un vehicule automobile
DE3101188A1 (de) * 1980-01-17 1981-12-10 Fiat Auto S.p.A., 10100 Torino Steuerschaltung fuer eine elektrische wisch- und waschvorrichtung einer kraftfahrzeugheckscheibe
DE3332921A1 (de) * 1983-09-13 1985-03-28 Robert Bosch Gmbh, 7000 Stuttgart Wisch-waschanlage fuer kraftfahrzeuge
DE3441842A1 (de) * 1984-11-15 1986-05-15 Siemens AG, 1000 Berlin und 8000 München Scheibenwischanlage fuer kraftfahrzeuge
DE3922230A1 (de) * 1989-07-06 1991-01-17 Duerrwaechter E Dr Doduco Schaltungsanordnung fuer eine scheibenwisch- und -waschanlage in kraftfahrzeugen
EP0492693A1 (fr) * 1990-12-20 1992-07-01 General Motors Corporation Dispositif pour commander le système d'essuie-glace d'un véhicule

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DE3047453A1 (de) * 1980-12-17 1982-07-22 SWF-Spezialfabrik für Autozubehör Gustav Rau GmbH, 7120 Bietigheim-Bissingen Wisch- und waschanlage fuer kraftfahrzeuge
IT1185961B (it) * 1985-10-01 1987-11-18 Cavis Cavetti Isolati Spa Apparecchiature elettronica,atta a comandare tutti i servizi elettrici di un autoveicolo,tramite un cavetto semplice o doppio
JPH01503225A (ja) * 1987-03-17 1989-11-02 ドドウコ・ゲーエムベーハー・ウント・コンパニー・ドクトル・オイゲン・デュルヴェヒテル 乗物用ワイパの拭きとり動作間の時間間隔を調整するための回路構成を有するインタバルスイッチおよび方法
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Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122357A (en) * 1976-02-13 1978-10-24 Toyo Kogyo Co., Ltd. Wiring system for motor vehicle
FR2453443A1 (fr) * 1979-04-04 1980-10-31 Hitachi Ltd Procede et appareil de commande d'equipements d'un vehicule automobile
DE3101188A1 (de) * 1980-01-17 1981-12-10 Fiat Auto S.p.A., 10100 Torino Steuerschaltung fuer eine elektrische wisch- und waschvorrichtung einer kraftfahrzeugheckscheibe
DE3332921A1 (de) * 1983-09-13 1985-03-28 Robert Bosch Gmbh, 7000 Stuttgart Wisch-waschanlage fuer kraftfahrzeuge
DE3441842A1 (de) * 1984-11-15 1986-05-15 Siemens AG, 1000 Berlin und 8000 München Scheibenwischanlage fuer kraftfahrzeuge
DE3922230A1 (de) * 1989-07-06 1991-01-17 Duerrwaechter E Dr Doduco Schaltungsanordnung fuer eine scheibenwisch- und -waschanlage in kraftfahrzeugen
EP0492693A1 (fr) * 1990-12-20 1992-07-01 General Motors Corporation Dispositif pour commander le système d'essuie-glace d'un véhicule

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996010500A1 (fr) * 1994-09-30 1996-04-11 Itt Automotive Electrical Systems, Inc. Interface de module de commande de temporisation automatique pour essuie-glace
WO1996011823A1 (fr) * 1994-10-13 1996-04-25 Itt Automotive Electrical Systems, Inc. Systeme et procede de raccordement multiplexe pour la commande d'un essuie-glace
WO1996030237A1 (fr) * 1995-03-30 1996-10-03 Wynn Marine Ltd. Commande d'essuie-glaces
GB2315995A (en) * 1995-03-30 1998-02-18 Wynn Marine Ltd Windscreen wiper control
CN105730375A (zh) * 2016-01-28 2016-07-06 叶少甘 一种车载负载电源控制系统

Also Published As

Publication number Publication date
DE4221972A1 (de) 1994-01-05
DE4221972C2 (de) 2000-11-30

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