WO2008077666A1 - Electrical drive apparatus with an electronic control unit - Google Patents
Electrical drive apparatus with an electronic control unit Download PDFInfo
- Publication number
- WO2008077666A1 WO2008077666A1 PCT/EP2007/061474 EP2007061474W WO2008077666A1 WO 2008077666 A1 WO2008077666 A1 WO 2008077666A1 EP 2007061474 W EP2007061474 W EP 2007061474W WO 2008077666 A1 WO2008077666 A1 WO 2008077666A1
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- WO
- WIPO (PCT)
- Prior art keywords
- control unit
- electronic control
- magnetic field
- drive device
- field sensor
- 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.)
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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
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
- B60S1/16—Means for transmitting drive
- B60S1/166—Means for transmitting drive characterised by the combination of a motor-reduction unit and a mechanism for converting rotary into oscillatory movement
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/38—Control circuits or drive circuits associated with geared commutator motors of the worm-and-wheel type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
- H02K7/1163—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion
- H02K7/1166—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion comprising worm and worm-wheel
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
Definitions
- the present invention relates to an electric drive device according to the preamble of claim 1, in particular an electric drive device for a windshield wiper, and an electronic control unit according to the preamble of claim 8 for the electric drive device.
- Such an electric drive device is disclosed in DE 90 13 006 and comprises a magnetic element, a magnetic field sensor, an electronic control unit and a drive gear, which is non-rotatably mounted on a drive shaft.
- the magnetic element is rotatably mounted on a worm shaft, which is integrally formed as an extension of a rotor shaft of an electric motor and in which engages the drive gear.
- the magnetic field sensor is arranged laterally of the worm shaft at the level of the magnetic element.
- the electronic control unit is housed in a separate housing on a printed circuit board to control the electric motor based on signals from the magnetic field sensor.
- circuit board has a separate housing, which leads to an increased weight and a large installation space. Disclosure of the invention
- the present invention has for its object, an electric drive device, which requires little space, has a low weight and can be assembled quickly, and to provide an electronic control unit for such a drive device.
- the magnetic element is fixed to one side of the drive gear, and the magnetic field sensor and the electronic control unit are provided laterally from the side.
- an available space at the side of the drive gear for mounting the electronic control unit and the magnetic field sensor in a flat arrangement is suitable, so that a separate housing is not required.
- the magnetic field sensor can detect all angular positions of the drive shaft in this position.
- control unit and the magnetic field sensor are arranged on a printed circuit board.
- the magnetic field sensor and the electronic components can be electrically connected to one another without a cabling and before their attachment.
- the electronic control unit is formed as an integrated circuit.
- the electronic components can be made particularly compact thereby.
- the production of a large number of integrated circuits requires little effort and is therefore inexpensive.
- the magnetic field sensor is integrated in the integrated circuit.
- the integrated circuit is housed in an electronics housing and the electronics housing is a molded plastic housing.
- the sensitive electronic components can thereby be protected from the environment.
- a molded plastic housing can be produced particularly easily and at the same time is permeable to the magnetic field of the magnetic element.
- electrical plug contacts protrude from the electronics housing.
- the magnetic field sensor is a Hall sensor.
- the signals can be a Hall sensor particularly easy to process electronically and a Hall sensor can also be easily integrated into an integrated circuit.
- the present invention relates to an electronic control unit for an electric drive device, wherein the control unit is formed as an integrated circuit.
- control unit can thereby be made particularly compact.
- the electronic control unit is programmable to individually set certain parameters that may differ for different types of vehicles and different drive units.
- a control unit can thus be used for a large number of vehicle types and drive units.
- the magnetic field sensor is integrated in the integrated circuit.
- control unit and magnetic field sensor can thereby be made even more compact.
- FIG. 1 is a sectional view of an electric drive device
- FIG. 2 shows a further sectional view of the electric drive device along the section line XX from FIG. 1
- FIG. 3 is a sectional view of an electric drive device with a printed circuit board.
- electrical drive devices are described which are provided for a windscreen wiper of a motor vehicle.
- FIG. 1 shows a sectional view of an electric drive device.
- the electric drive device comprises an electric motor which is housed in a motor housing 1, and a rotor 2, a stator 3, a commutator 4 and sliding contacts 5 has.
- the rotor 2 is rotatably mounted on a rotor shaft 6.
- the rotor shaft 6 is integrally formed with a worm shaft 7, which protrudes from the motor housing 1 in a transmission housing 8, which is bolted to the motor housing 1.
- the rotor shaft 6 or worm shaft 7 is mounted at its two ends in the bearings 9 and 10. In the thread (not shown) of the worm shaft 7 engages a spur gear (not shown) of a drive gear 11 a.
- the drive gear 11 has a cylindrical end face, on which the spur toothing is formed, and two parallel side faces, between which the cylindrical end face is formed.
- the drive gear has a large diameter to ensure a stable connection to the worm shaft with little play. Therefore, much space can be obtained laterally from the side surfaces by the transmission housing 8 is increased only slightly perpendicular to these side surfaces.
- the direction of rotation of the drive gear 11 and thus the direction of rotation and maximum deflection (wiper end positions) of the wiper is determined by changing the direction of rotation of the electric motor.
- FIG. FIG. 2 shows a further sectional view of the electric drive device along the section line XX from FIG. 1.
- the drive gear 11 is rotatably mounted on a drive shaft 13, on which the wiper arm of a windshield wiper (not shown) sits.
- the drive shaft 13 is provided on the side of the drive gear 11 facing away from the integrated circuit 15, and is aligned perpendicular to the two parallel side surfaces of the drive gear 11.
- the integrated circuit 15 is housed, which was prepared by a standard method of semiconductor technology from a silicon wafer.
- Integrated in the integrated circuit 15 is also a magnetic field sensor which is designed as a Hall sensor 16.
- the side of the integrated circuit on which the electronic components are formed faces the magnetic element 14.
- the Hall sensor 16 serves to the magnetic field of the magnetic element 14 and thus the angular position to detect the drive shaft 13.
- the integrated circuit 15 is configured to evaluate the signals of the Hall sensor 16, thereby determining the position of the windscreen wiper and depending on the signals of the Hall sensor 16, the direction of rotation of the electric motor Wischendpositionen (maximum deflection of the windscreen wiper) and parking position of the windscreen wiper to control.
- the integrated circuit 15 is programmable prior to assembly in order to set individual parameters (park position, wiper end positions) that can differ for different vehicle types and different drive units. For the wiper end positions is determined by programming that for certain signals of the Hall sensor, the direction of rotation of the electric motor is to be reversed. For the parking position it is determined by programming that for a specific signal of the
- the electric motor should not be driven further.
- the plug contacts 17 provide an electrical connection with power supply terminals 19 and at the same time ensure a fixation of the electronics housing 12 to the transmission housing 8.
- Further plug contacts, which are shown in FIG. 2 are hidden by the plug contacts 17, for example, establish electrical connections with the motor for its control.
- FIG. 3 shows a sectional view of an electric drive device with a printed circuit board 20.
- This drive device differs from the preceding one only in that a printed circuit board 20 is provided as the control unit instead of the integrated circuit.
- the circuit board 20 has the same function and position of the integrated circuit of the previous embodiment and is also programmable.
- On the circuit board 20 discrete electronic components 22 and a Hall sensor 23 are arranged.
- the printed circuit board te 20 is connected via electrical connections 21 to the power supply terminals 19.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
ROBERT BOSCH GMBH, 70442 StuttgartROBERT BOSCH GMBH, 70442 Stuttgart
Elektrische Antriebsvorrichtung mit einer elektronischen SteuerungseinheitElectric drive device with an electronic control unit
Stand der TechnikState of the art
Die vorliegende Erfindung betrifft eine elektrische Antriebsvorrichtung gemäß dem Oberbegriff des Patentanspruchs 1, insbesondere eine elektrische Antriebsvorrichtung für einen Scheibenwischer, und eine elektronische Steuerungseinheit gemäß dem Oberbegriff des Patentanspruchs 8 für die elektrische Antriebsvorrichtung.The present invention relates to an electric drive device according to the preamble of claim 1, in particular an electric drive device for a windshield wiper, and an electronic control unit according to the preamble of claim 8 for the electric drive device.
Eine solche elektrische Antriebsvorrichtung ist in der DE 90 13 006 offenbart und umfaßt ein Magnetelement, einen Magnetfeldsensor, eine elektronische Steuerungseinheit und ein An- triebszahnrad, das drehfest an einer Antriebswelle befestigt ist .Such an electric drive device is disclosed in DE 90 13 006 and comprises a magnetic element, a magnetic field sensor, an electronic control unit and a drive gear, which is non-rotatably mounted on a drive shaft.
Das Magnetelement ist drehfest an einer Schneckenwelle angebracht, welche einstückig als Verlängerung einer Rotorwelle eines elektrischen Motors ausgebildet ist und in welche das Antriebszahnrad eingreift. Der Magnetfeldsensor ist seitlich von der Schneckenwelle auf Höhe des Magnetelements angeordnet. Die elektronische Steuerungseinheit ist in einem separaten Gehäuse auf einer Leiterplatte untergebracht, um den E- lektromotor auf Grundlage von Signalen des Magnetfeldsensors zu steuern.The magnetic element is rotatably mounted on a worm shaft, which is integrally formed as an extension of a rotor shaft of an electric motor and in which engages the drive gear. The magnetic field sensor is arranged laterally of the worm shaft at the level of the magnetic element. The electronic control unit is housed in a separate housing on a printed circuit board to control the electric motor based on signals from the magnetic field sensor.
Ein Nachteil liegt darin, daß die Leiterplatte ein separates Gehäuse aufweist, was zu einem erhöhten Gewicht und zu einem großem Bauraum führt. Offenbarung der ErfindungA disadvantage is that the circuit board has a separate housing, which leads to an increased weight and a large installation space. Disclosure of the invention
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine elektrische Antriebsvorrichtung, die wenig Bauraum erfordert, ein geringes Gewicht hat und schnell zusammengesetzt werden kann, und eine elektronische Steuerungseinheit für eine derartige Antriebsvorrichtung zu schaffen.The present invention has for its object, an electric drive device, which requires little space, has a low weight and can be assembled quickly, and to provide an electronic control unit for such a drive device.
Die der Erfindung zugrunde liegende Aufgabe wird durch eine elektrische Antriebsvorrichtung mit den Merkmalen des kennzeichnenden Teils des Patentanspruchs 1 und eine elektronische Steuerungseinheit mit den Merkmalen des kennzeichnenden Teils des Patentanspruchs 8 gelöst.The object underlying the invention is achieved by an electric drive device having the features of the characterizing part of patent claim 1 and an electronic control unit having the features of the characterizing part of patent claim 8.
Erfindungsgemäß ist das Magnetelement an einer Seite des Antriebszahnrads befestigt, und sind der Magnetfeldsensor und die elektronische Steuerungseinheit seitlich von der Seite vorgesehen .According to the invention, the magnetic element is fixed to one side of the drive gear, and the magnetic field sensor and the electronic control unit are provided laterally from the side.
Vorteilhafterweise ist ein vorhandener Raum seitlich von dem Antriebszahnrad zur Anbringung der elektronischen Steuerungseinheit und des Magnetfeldsensors in einer flachen Anordnung geeignet, so daß ein separates Gehäuse nicht erforderlich ist. Zudem kann der Magnetfeldsensor in dieser Lage sämtliche Winkelstellungen der Antriebswelle erfassen.Advantageously, an available space at the side of the drive gear for mounting the electronic control unit and the magnetic field sensor in a flat arrangement is suitable, so that a separate housing is not required. In addition, the magnetic field sensor can detect all angular positions of the drive shaft in this position.
In einer bevorzugten Ausführungsform sind die Steuerungseinheit und der Magnetfeldsensor auf einer Leiterplatte angeordnet .In a preferred embodiment, the control unit and the magnetic field sensor are arranged on a printed circuit board.
Vorteilhafterweise können der Magnetfeldsensor und die elektronischen Bauelemente ohne eine Verkablung und vor deren Anbringung elektrisch miteinander verbunden werden.Advantageously, the magnetic field sensor and the electronic components can be electrically connected to one another without a cabling and before their attachment.
In noch einer bevorzugten Ausführungsform ist die elektronische Steuerungseinheit als eine integrierte Schaltung ausgebildet. Vorteilhafterweise können die elektronischen Bauelemente dadurch besonders kompakt ausgebildet werden. Außerdem erfordert die Herstellung einer großen Anzahl von integrierten Schaltungen einen geringen Aufwand und ist somit kostengünstig.In yet a preferred embodiment, the electronic control unit is formed as an integrated circuit. Advantageously, the electronic components can be made particularly compact thereby. In addition, the production of a large number of integrated circuits requires little effort and is therefore inexpensive.
In einer Weiterbildung der bevorzugten Ausführungsform ist der Magnetfeldsensor in der integrierten Schaltung integ- riert.In a development of the preferred embodiment, the magnetic field sensor is integrated in the integrated circuit.
Vorteilhafterweise kann so eine noch kompaktere Anordnung aus elektronischen Bauelementen und einem Magnetfeldsensor geschaffen werden.Advantageously, such an even more compact arrangement of electronic components and a magnetic field sensor can be created.
In noch einer Weiterbildung der bevorzugten Ausführungsform ist die integrierte Schaltung in einem Elektronikgehäuse untergebracht und ist das Elektronikgehäuse ein gespritztes Kunststoffgehäuse .In yet another embodiment of the preferred embodiment, the integrated circuit is housed in an electronics housing and the electronics housing is a molded plastic housing.
Vorteilhafterweise können die empfindlichen elektronischen Bauelemente dadurch vor der Umgebung geschützt werden. Zudem läßt sich ein gespritztes Kunststoffgehäuse besonders leicht herstellen und ist gleichzeitig durchlässig für das magneti- sehe Feld des Magnetelements.Advantageously, the sensitive electronic components can thereby be protected from the environment. In addition, a molded plastic housing can be produced particularly easily and at the same time is permeable to the magnetic field of the magnetic element.
In noch einer Weiterbildung der bevorzugten Ausführungsform ragen aus dem Elektronikgehäuse elektrische Steckkontakte heraus .In a further development of the preferred embodiment, electrical plug contacts protrude from the electronics housing.
Vorteilhafterweise läßt sich dadurch die integrierte Schaltung besonders einfach ein- und ausbauen.Advantageously, this makes the integrated circuit particularly easy to install and remove.
In noch einer bevorzugten Ausführungsform ist der Magnetfeld- sensor ein Hallsensor ist. Vorteilhafterweise lassen sich die Signale ein Hallsensor besonders einfach elektronisch weiterverarbeiten und kann ein Hallsensor zudem einfach in einer integrierten Schaltung integriert werden.In a further preferred embodiment, the magnetic field sensor is a Hall sensor. Advantageously, the signals can be a Hall sensor particularly easy to process electronically and a Hall sensor can also be easily integrated into an integrated circuit.
Ferner betrifft die vorliegende Erfindung eine elektronische Steuerungseinheit für eine elektrische Antriebsvorrichtung, wobei die Steuerungseinheit als integrierte Schaltung ausgebildet ist.Furthermore, the present invention relates to an electronic control unit for an electric drive device, wherein the control unit is formed as an integrated circuit.
Vorteilhafterweise kann die Steuerungseinheit dadurch besonders kompakt ausgebildet werden.Advantageously, the control unit can thereby be made particularly compact.
In einer bevorzugten Ausführungsform ist die elektronische Steuerungseinheit programmierbar, um bestimmte Parameter, die sich für unterschiedliche Fahrzeugtypen und unterschiedliche Antriebseinheiten unterscheiden können, individuell festzulegen .In a preferred embodiment, the electronic control unit is programmable to individually set certain parameters that may differ for different types of vehicles and different drive units.
Vorteilhafterweise kann somit eine Steuerungseinheit für eine Vielzahl von Fahrzeugtypen und Antriebseinheiten verwendet werden .Advantageously, a control unit can thus be used for a large number of vehicle types and drive units.
In noch einer bevorzugten Ausführungsform ist der Magnetfeld- sensor in der integrierten Schaltung integriert.In a further preferred embodiment, the magnetic field sensor is integrated in the integrated circuit.
Vorteilhafterweise kann die Anordnung aus Steuerungseinheit und Magnetfeldsensor dadurch noch kompakter ausgebildet werden .Advantageously, the arrangement of control unit and magnetic field sensor can thereby be made even more compact.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Im folgenden wird die Erfindung mit Bezugnahme auf die Zeichnungen näher beschrieben. Es zeigt: FIG. 1 eine Schnittansicht einer elektrischen Antriebsvorrichtung; FIG. 2 eine weitere Schnittansicht der elektrischen Antriebsvorrichtung entlang der Schnittlinie X-X aus FIG. 1; und FIG. 3 eine Schnittansicht einer elektrischen Antriebsvorrichtung mit einer Leiterplatte.In the following the invention with reference to the drawings will be described in more detail. It shows: FIG. 1 is a sectional view of an electric drive device; FIG. FIG. 2 shows a further sectional view of the electric drive device along the section line XX from FIG. 1; and FIG. 3 is a sectional view of an electric drive device with a printed circuit board.
Ausführungsformen der ErfindungEmbodiments of the invention
In den Ausführungsformen der Erfindung werden elektrische Antriebsvorrichtungen beschrieben, die für einen Scheibenwi- scher eines Kraftfahrzeugs vorgesehen sind.In the embodiments of the invention, electrical drive devices are described which are provided for a windscreen wiper of a motor vehicle.
FIG. 1 zeigt eine Schnittansicht einer elektrischen Antriebsvorrichtung. Die elektrische Antriebsvorrichtung umfaßt einen elektrischen Motor, der in einem Motorgehäuse 1 untergebracht ist, und einen Rotor 2, einen Stator 3, einen Kommutator 4 und Schleifkontakte 5 aufweist. Der Rotor 2 sitzt drehfest auf einer Rotorwelle 6. Die Rotorwelle 6 ist einstückig mit einer Schneckenwelle 7 ausgebildet, die aus dem Motorgehäuse 1 in ein Getriebegehäuse 8 hineinragt, welches mit dem Motor- gehäuse 1 verschraubt ist. Die Rotorwelle 6 bzw. Schneckenwelle 7 ist an ihren beiden Enden in den Lagern 9 und 10 gelagert. In das Gewinde (nicht dargestellt) der Schneckenwelle 7 greift eine Stirnverzahnung (nicht dargestellt) eines Antriebszahnrads 11 ein. Das Antriebszahnrad 11 weist eine zy- lindrische Stirnfläche, auf welcher die Stirnverzahnung ausgebildet ist, und zwei parallele Seitenflächen auf, zwischen denen die zylindrische Stirnseite ausgebildet ist. Das Antriebszahnrad hat einen großen Durchmesser, um eine stabile Verbindung zu der Schneckenwelle mit wenig Spiel zu gewähr- leisten. Daher kann seitlich von den Seitenflächen viel Bauraum gewonnen werden, indem das Getriebegehäuse 8 senkrecht zu dieser Seitenflächen nur etwas vergrößert wird. Die Drehrichtung des Antriebszahnrads 11 und somit die Drehrichtung und maximale Auslenkung (Wischerendpositionen) des Scheiben- Wischers wird bestimmt, indem die Drehrichtung des elektrischen Motors geändert wird. Somit entfällt ein aufwendiges Umsetzgetriebe, welches die Drehrichtung des zugehörigen Scheibenwischers umschaltet, ohne daß der elektrische Motor seine Drehrichtung wechselt, mit einer Vielzahl von Stirnrädern und Kontaktscheiben, die für unterschiedliche Wischwinkel und eine Parkstellung erforderlich sind, wie aus dem Stand der Technik bekannt. Dadurch wird Bauraum gewonnen, wird das Gewicht der Antriebsvorrichtung verringert, und werden Geräusche verhindert. Gleichzeitig werden dadurch in vorliegenden Fall zusätzliche Steuerungsfunktionen für den Motor erforderlich, der durch einen Wechsel seiner Drehrichtung die maximale Auslenkung und Drehrichtung des zugehörigen Scheibenwischers bestimmt. Diese zusätzlichen Steuerungsfunktionen werden auch von einer integrierte Schaltung durchgeführt, die seitlich von dem Antriebszahnrad 11 angeordnet ist und in einem Kunststoffgehäuse 12 untergebracht ist, welches vorzugs- weise aus Kunststoff durch ein Spritzgußverfahren hergestellt wurde, wie es aus der Halbleitertechnologie bekannt ist.FIG. 1 shows a sectional view of an electric drive device. The electric drive device comprises an electric motor which is housed in a motor housing 1, and a rotor 2, a stator 3, a commutator 4 and sliding contacts 5 has. The rotor 2 is rotatably mounted on a rotor shaft 6. The rotor shaft 6 is integrally formed with a worm shaft 7, which protrudes from the motor housing 1 in a transmission housing 8, which is bolted to the motor housing 1. The rotor shaft 6 or worm shaft 7 is mounted at its two ends in the bearings 9 and 10. In the thread (not shown) of the worm shaft 7 engages a spur gear (not shown) of a drive gear 11 a. The drive gear 11 has a cylindrical end face, on which the spur toothing is formed, and two parallel side faces, between which the cylindrical end face is formed. The drive gear has a large diameter to ensure a stable connection to the worm shaft with little play. Therefore, much space can be obtained laterally from the side surfaces by the transmission housing 8 is increased only slightly perpendicular to these side surfaces. The direction of rotation of the drive gear 11 and thus the direction of rotation and maximum deflection (wiper end positions) of the wiper is determined by changing the direction of rotation of the electric motor. Thus eliminates a complex transfer gear, which the direction of rotation of the associated Windscreen wiper switches, without the electric motor changes its direction of rotation, with a plurality of spur gears and contact discs, which are required for different wiping angles and a parking position, as known from the prior art. As a result, space is gained, the weight of the drive device is reduced, and noise is prevented. At the same time additional control functions for the engine are required in the present case, which determines the maximum deflection and direction of rotation of the associated windscreen wiper by changing its direction of rotation. These additional control functions are also performed by an integrated circuit, which is arranged laterally of the drive gear 11 and housed in a plastic housing 12, which was preferably made of plastic by an injection molding process, as it is known from semiconductor technology.
FIG. 2 zeigt eine weitere Schnittansicht der elektrischen Antriebsvorrichtung entlang der Schnittlinie X-X aus FIG. 1. Das Antriebszahnrad 11 ist drehfest an einer Antriebswelle 13 befestigt, auf welcher der Wischerarm eines Scheibenwischers (nicht dargestellt) sitzt. Die Antriebswelle 13 ist auf der Seite des Antriebszahnrads 11 vorgesehen, welche von der integrierten Schaltung 15 abgewandt ist, und ist senkrecht zu den zwei parallelen Seitenflächen des Antriebszahnrads 11 ausgerichtet. Auf der Seite des Antriebszahnrads 11, welche der integrierten Schaltung 15 zugewandt ist und somit von der Antriebswelle 13 abgewandt ist, ist ein Magnetelement 14 befestigt. In dem Kunststoffgehäuse 12 ist die integrierte Schaltung 15 untergebracht, die durch ein Standardverfahren der Halbleitertechnologie aus einem Silizium-Wafer hergestellt wurde. In der integrierten Schaltung 15 ist auch ein Magnetfeldsensor integriert, der als Hallsensor 16 ausgebildet ist. Die Seite der integrierten Schaltung, auf welcher die elektronischen Bauelemente ausgebildet sind, ist dem Magnetelement 14 zugewandt. Der Hallsensor 16 dient dazu, das Magnetfeld des Magnetelements 14 und so die Winkelposition der Antriebswelle 13 zu erfassen. Die integrierten Schaltung 15 ist eingerichtet, die Signale des Hallsensors 16 auszuwerten, dadurch die Position des Scheibenwischers zu bestimmen und abhängig von den Signalen des Hallsensors 16 die Dreh- richtung des Elektromotors, Wischendpositionen (maximale Auslenkung des Scheibenwischers) und Parklage des Scheibenwischers zu steuern. Die integrierte Schaltung 15 ist vor der Bestückung programmierbar, um bestimmte Parameter (Parklage, Wischendpositionen) , die sich für unterschiedliche Fahrzeug- typen und unterschiedliche Antriebseinheiten unterscheiden können, individuell festzulegen. Für die Wischendpositionen wird durch Programmierung festgelegt, daß für bestimmte Signale des Hallsensors, die Drehrichtung des elektrischen Motors umgekehrt werden soll. Für die Parklage wird durch Pro- grammierung festgelegt, daß für ein bestimmtes Signal desFIG. FIG. 2 shows a further sectional view of the electric drive device along the section line XX from FIG. 1. The drive gear 11 is rotatably mounted on a drive shaft 13, on which the wiper arm of a windshield wiper (not shown) sits. The drive shaft 13 is provided on the side of the drive gear 11 facing away from the integrated circuit 15, and is aligned perpendicular to the two parallel side surfaces of the drive gear 11. On the side of the drive gear 11, which faces the integrated circuit 15 and thus faces away from the drive shaft 13, a magnetic element 14 is attached. In the plastic housing 12, the integrated circuit 15 is housed, which was prepared by a standard method of semiconductor technology from a silicon wafer. Integrated in the integrated circuit 15 is also a magnetic field sensor which is designed as a Hall sensor 16. The side of the integrated circuit on which the electronic components are formed faces the magnetic element 14. The Hall sensor 16 serves to the magnetic field of the magnetic element 14 and thus the angular position to detect the drive shaft 13. The integrated circuit 15 is configured to evaluate the signals of the Hall sensor 16, thereby determining the position of the windscreen wiper and depending on the signals of the Hall sensor 16, the direction of rotation of the electric motor Wischendpositionen (maximum deflection of the windscreen wiper) and parking position of the windscreen wiper to control. The integrated circuit 15 is programmable prior to assembly in order to set individual parameters (park position, wiper end positions) that can differ for different vehicle types and different drive units. For the wiper end positions is determined by programming that for certain signals of the Hall sensor, the direction of rotation of the electric motor is to be reversed. For the parking position it is determined by programming that for a specific signal of the
Hallsensors, der elektrische Motor nicht weiter angetrieben werden soll. Aus dem Kunststoffgehäuse 12 ragen mehrere e- lektrische Steckkontakte 17 heraus, die in entsprechende Einsteckhülsen 18 eingesteckt sind. Die Steckkontakte 17 stellen eine elektrische Verbindung mit Stromversorgungsanschlüssen 19 her und sorgen gleichzeitig für eine Fixierung des Elektronikgehäuses 12 an dem Getriebegehäuse 8. Weitere Steckkontakte, die in FIG. 2 durch die Steckkontakte 17 verdeckt sind, stellen zum Beispiel elektrische Verbindungen mit dem Motor zu dessen Steuerung her. Zusätzlich sind Kontakte, die nicht als Steckkontakte ausgebildet, zur Programmierung vor der Bestückung vorgesehen.Hall sensor, the electric motor should not be driven further. From the plastic housing 12 protrude several e- lectric plug-in contacts 17, which are inserted into corresponding Einsteckhülsen 18. The plug contacts 17 provide an electrical connection with power supply terminals 19 and at the same time ensure a fixation of the electronics housing 12 to the transmission housing 8. Further plug contacts, which are shown in FIG. 2 are hidden by the plug contacts 17, for example, establish electrical connections with the motor for its control. In addition, contacts that are not designed as plug contacts, provided for programming before the assembly.
FIG. 3 zeigt eine Schnittansicht einer elektrischen Antriebs- Vorrichtung mit einer Leiterplatte 20. Diese Antriebsvorrichtung unterscheidet sich von der vorhergehenden nur dadurch, daß als Steuerungseinheit statt der integrierten Schaltung eine Leiterplatte 20 vorgesehen ist. Die Leiterplatte 20 hat die selbe Funktion und Position der integrierten Schaltung der vorherigen Ausführungsform und ist genauso programmierbar. Auf der Leiterplatte 20 sind diskrete elektronische Bauelemente 22 und ein Hallsensor 23 angeordnet. Die Leiterplat- te 20 ist über elektrische Anschlüsse 21 mit den Stromversorgungsanschlüssen 19 verbunden. FIG. 3 shows a sectional view of an electric drive device with a printed circuit board 20. This drive device differs from the preceding one only in that a printed circuit board 20 is provided as the control unit instead of the integrated circuit. The circuit board 20 has the same function and position of the integrated circuit of the previous embodiment and is also programmable. On the circuit board 20 discrete electronic components 22 and a Hall sensor 23 are arranged. The printed circuit board te 20 is connected via electrical connections 21 to the power supply terminals 19.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006060621.3 | 2006-12-21 | ||
| DE102006060621A DE102006060621A1 (en) | 2006-12-21 | 2006-12-21 | Electric drive device with an electronic control unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008077666A1 true WO2008077666A1 (en) | 2008-07-03 |
Family
ID=38924446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2007/061474 Ceased WO2008077666A1 (en) | 2006-12-21 | 2007-10-25 | Electrical drive apparatus with an electronic control unit |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102006060621A1 (en) |
| WO (1) | WO2008077666A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008049369A1 (en) * | 2008-09-27 | 2010-04-01 | Valeo Systèmes d'Essuyage | Electromotive auxiliary drive for vehicles |
| RU2510561C2 (en) | 2009-07-30 | 2014-03-27 | Мицуба Корпорейшн | Gearmotor |
| US10320265B2 (en) | 2009-07-30 | 2019-06-11 | Mitsuba Corporation | Wiper motor |
| DE102010002793A1 (en) * | 2010-03-11 | 2011-09-15 | Robert Bosch Gmbh | Drive device with an electric drive motor and a transmission |
| WO2015098789A1 (en) | 2013-12-25 | 2015-07-02 | 株式会社ミツバ | Brushless motor and wiper device, motor device and motor device control method |
| JP6441814B2 (en) * | 2013-12-25 | 2018-12-19 | 株式会社ミツバ | Wiper device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19858232C1 (en) * | 1998-12-17 | 2000-03-30 | Bosch Gmbh Robert | Electric drive unit for motor vehicle window lifter or windscreen wiper, has power switch combined with control unit in integrated circuit arranged on lead frame |
| WO2000046082A1 (en) * | 1999-02-01 | 2000-08-10 | Robert Bosch Gmbh | Windshield wiper drive device |
| US6737593B1 (en) * | 2000-07-28 | 2004-05-18 | Valeo Electrical Systems, Inc. | Non-reversing windshield wiper motor park switch |
| EP1577182A1 (en) * | 2002-12-13 | 2005-09-21 | Mitsuba Corporation | Wiper device control method, wiper device, and motor with speed reuction mechanism |
-
2006
- 2006-12-21 DE DE102006060621A patent/DE102006060621A1/en not_active Withdrawn
-
2007
- 2007-10-25 WO PCT/EP2007/061474 patent/WO2008077666A1/en not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19858232C1 (en) * | 1998-12-17 | 2000-03-30 | Bosch Gmbh Robert | Electric drive unit for motor vehicle window lifter or windscreen wiper, has power switch combined with control unit in integrated circuit arranged on lead frame |
| WO2000046082A1 (en) * | 1999-02-01 | 2000-08-10 | Robert Bosch Gmbh | Windshield wiper drive device |
| US6737593B1 (en) * | 2000-07-28 | 2004-05-18 | Valeo Electrical Systems, Inc. | Non-reversing windshield wiper motor park switch |
| EP1577182A1 (en) * | 2002-12-13 | 2005-09-21 | Mitsuba Corporation | Wiper device control method, wiper device, and motor with speed reuction mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102006060621A1 (en) | 2008-06-26 |
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