AT7740U1 - ELECTRICAL AUXILIARY DRIVE FOR MOTOR VEHICLES - Google Patents

ELECTRICAL AUXILIARY DRIVE FOR MOTOR VEHICLES Download PDF

Info

Publication number
AT7740U1
AT7740U1 AT0050504U AT5052004U AT7740U1 AT 7740 U1 AT7740 U1 AT 7740U1 AT 0050504 U AT0050504 U AT 0050504U AT 5052004 U AT5052004 U AT 5052004U AT 7740 U1 AT7740 U1 AT 7740U1
Authority
AT
Austria
Prior art keywords
auxiliary drive
driven
electric motor
axle
clutches
Prior art date
Application number
AT0050504U
Other languages
German (de)
Inventor
Helmut Ing Kassler
Konstantin Dipl Ing Erjawetz
Original Assignee
Magna Steyr Fahrzeugtechnik Ag
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 Magna Steyr Fahrzeugtechnik Ag filed Critical Magna Steyr Fahrzeugtechnik Ag
Priority to AT0050504U priority Critical patent/AT7740U1/en
Publication of AT7740U1 publication Critical patent/AT7740U1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
    • B60K17/046—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
    • B60K17/356—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having fluid or electric motor, for driving one or more wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/52—Driving a plurality of drive axles, e.g. four-wheel drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/15—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with additional electric power supply
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/001—Arrangement or mounting of electrical propulsion units one motor mounted on a propulsion axle for rotating right and left wheels of this axle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Arrangement And Driving Of Transmission Devices (AREA)

Abstract

Ein elektrischer Zusatzantrieb für die im Normalbetrieb nicht angetriebene Achse (2) eines Kraftfahrzeuges besteht aus einem Elektromotor, einem Untersetzungsgetriebe, den beiden Achswellen und einer Trennkupplung für den Normalbetrieb. Um einen Zusatzantrieb zu schaffen, der möglichst klein baut und möglichst billig ist, treibt der Elektromotor (10) über ein Untersetzungsgetriebe (13) eine Zentralwelle (15) an, die über je eine steuerbare Kupplung (16,17) mit den beiden Achswellen (18,19) antriebsverbunden ist.An electric auxiliary drive for the non-driven in normal operation axis (2) of a motor vehicle consists of an electric motor, a reduction gear, the two axle shafts and a clutch for normal operation. To create an auxiliary drive which is as small as possible and as cheap as possible, drives the electric motor (10) via a reduction gear (13) to a central shaft (15) via one controllable coupling (16,17) with the two axle shafts ( 18, 19) is drive-connected.

Description

AT 007 740 U1AT 007 740 U1

Die Erfindung betrifft einen elektrischen Zusatzantrieb für die im Normalbetrieb nicht angetriebene Achse eines Kraftfahrzeuges, bestehend aus einem Elektromotor, einem Untersetzungsgetriebe, den beiden Achswellen und einer Vorrichtung zum Trennen der Antriebsverbindung im Normalbetrieb. Derartige Zusatzantriebe werden für Kraftfahrzeuge mit nur einer angetriebenen 5 Achse vorgesehen, um bei unzureichendem Reibschluß eines der angetriebenen Räder oder beider das Fahrzeug wieder flott zu machen. Sie können helfen, wenn das Fahrzeug entweder bei Glatteis und gegebenenfalls auf einer Steigung nicht anfahren kann, oder wenn es in tiefem Boden stecken geblieben ist. Naturgemäß wird der Zusatzantrieb dann nur bei kleinen Geschwindigkeiten benötigt. Ist das Fahrzeug dann flott, muss der Zusatzantrieb, um den Elektromotor nicht zu über-10 drehen und um Verluste zu vermeiden ausgekuppelt werden.The invention relates to an electric auxiliary drive for non-driven in normal operation axis of a motor vehicle, consisting of an electric motor, a reduction gear, the two axle shafts and a device for separating the drive connection in normal operation. Such auxiliary drives are provided for motor vehicles with only one driven 5 axis to make the vehicle afloat again with insufficient frictional engagement of one of the driven wheels or both. They can help if the vehicle can not get on either in the case of black ice and, if necessary, on a slope, or if it has become stuck in the ground. Naturally, the additional drive is then required only at low speeds. If the vehicle is then afloat, the auxiliary drive must be disengaged so as not to turn the electric motor over-10 and to avoid losses.

Aus der US 2003/0054913 A1 ist ein elektrischer Zusatzantrieb bekannt, bei dem der Elektromotor über ein zweistufiges Stirnradgetriebe, eine Kupplung und über ein Achsdifferentialgetriebe die beiden Achswellen antreibt. Diese Vorrichtung ist wegen des nicht sperrbaren Differentials bei kleinem Reibwert nur an einem Rad hilflos. Ausserdem nimmt sie viel Bauraum in Anspruch und ist 15 in Konstruktion und Fertigung aufwändig. Beide Nachteile sind gravierend, weil ein derartiger Zusatzantrieb ja in ein konventionelles Fahrzeug eingebaut werden soll, in dem dort kein Platz vorgesehen ist, und weil die Zusatzvorrichtung nur selten verwendet wird. Schließlich soll der Zusatzantrieb ja jenen Käufern helfen, die sich kein „richtiges“ Allradfahrzeug leisten können oder wollen. 20 Zwar ist es bei „richtigen“ Allradfahrzeugen, wie etwa im US Patent 5,699,888, beschrieben, eine der beiden von einem einzigen Verbrennungsmotor angetriebenen Achsen über zwei unabhängig voneinander steuerbare Kupplungen, eine für jede der beiden Radantriebswellen, anzutreiben. Doch ist es damit weder möglich noch vorgesehen, den Antrieb der Achse zu unterbrechen.From US 2003/0054913 A1 an electric auxiliary drive is known in which the electric motor via a two-stage spur gear, a clutch and an axle differential drives the two axle shafts. This device is helpless because of the non-lockable differential at low friction only on one wheel. In addition, it takes up a lot of space and is complex in construction and production. Both disadvantages are serious, because such an additional drive is to be installed yes in a conventional vehicle in which there is no space provided, and because the additional device is rarely used. After all, the additional drive should help those buyers who can not afford or want a "real" four-wheel drive vehicle. While "true" 4WD vehicles, such as described in US Patent 5,699,888, drive one of the two axles driven by a single internal combustion engine via two independently controllable clutches, one for each of the two wheel drive shafts. However, it is neither possible nor intended to interrupt the drive of the axle.

Es ist somit die der Erfindung zugrunde liegende Aufgabe, einen Zusatzantrieb zu schaffen, 25 der auch bei einseitig niederem Reibwert zwischen Rad und Boden wirksam ist und möglichst klein und billig baut. Erfindungsgemäß wird das dadurch erreicht, dass der Elektromotor über ein Untersetzungsgetriebe einen Zentralteil antreibt, der über je eine steuerbare Kupplung mit den beiden Achswellen antriebsverbunden ist. Wegen des Zentralteiles mit den beiden Kupplungen ist kein Achsdifferentialgetriebe mehr nötig, weil die Kupplungen Drehzahldifferenzen der Achswellen 30 ausgleichen können. Weil für das vollständige Trennen des Antriebes sowieso eine Kupplung für das auf beide Achswellen übertragene Drehmoment benötigt wird, ist die Hinzufügung einer Kupplung kein wesentlicher Mehraufwand. So ist jede der beiden Kupplungen nur einer Achswelle zugeordnet. Wenn ein Rad keine Bodenhaftung findet, wird durch verstärktes Anlegen der Kupplung auf der anderen Seite dieser ein höheres Drehmoment zugeteilt. Dadurch ist auch der Bau-35 aufwand, das Gewicht und der Raumbedarf des Zusatzantriebes bereits wesentlich verringert.It is therefore the object underlying the invention to provide an auxiliary drive, 25 which is effective even with one-sided lower coefficient of friction between the wheel and ground and builds as small and cheap. According to the invention this is achieved in that the electric motor drives a central part via a reduction gear, which is drive-connected via a respective controllable coupling with the two axle shafts. Because of the central part with the two clutches no axle differential is no longer necessary because the clutches 30 can compensate for speed differences of the axle shafts. Because a clutch for the torque transmitted to both axle shafts is needed anyway for the complete separation of the drive, the addition of a clutch is not a significant additional effort. So each of the two clutches is assigned to only one axle shaft. If a wheel does not have traction, the increased torque is applied by applying more force to the other side of the clutch. As a result, the construction-35 effort, the weight and space requirements of the auxiliary drive already significantly reduced.

In einer besonders einfachen Ausführungsform der Erfindung ist der Zentralteil ein zylindrischer Hohlkörper, der den Aussenteil beider steuerbaren Kupplungen bildet und über ein festwelliges Untersetzungsgetriebe mit dem Elektromotor antriebsverbunden ist. Bei dieser baut das gemeinsame Gehäuse der beiden Kupplungen sehr klein, aber davor ist Bauraum für das festwellige 40 Getriebe nötig.In a particularly simple embodiment of the invention, the central part is a cylindrical hollow body which forms the outer part of both controllable couplings and is drive-connected to the electric motor via a fixed-wave reduction gear. In this case, the common housing of the two clutches builds very small, but before that space is required for the festwellige 40 gearbox.

In einer besonders vorteilhaften Ausführungsform der Erfindung ist der Zentralteil eine Welle, umgibt der Elektromotor die Welle koaxial und ist das Untersetzungsgetriebe ein ebenfalls koaxiales Planetengetriebe. Das Planetengetriebe selbst ist bereits sehr klein, weil mit einem gewöhnlichen einstufigen Planetengetriebe Untersetzungen verwirklicht werden können, für die ein Stirn-45 radgetriebe zwei Stufen braucht. Der Raumbedarf ist auch achssymmetrisch, weil alle Komponenten koaxial sind, daher ist der Zusatzantrieb auch in kleinen Fahrzeugen mit tiefer Bodenplatte ohne bauliche Veränderungen unterzubringen.In a particularly advantageous embodiment of the invention, the central part is a shaft, the electric motor surrounds the shaft coaxial and the reduction gear is also a coaxial planetary gear. The planetary gear itself is already very small, because with a conventional single-stage planetary gear ratios can be realized for which a front-wheel gearbox needs two stages. The space requirement is also axisymmetric, because all components are coaxial, so the auxiliary drive is to accommodate even in small vehicles with lower base plate without structural changes.

Dank der Erfindung bedeutet es keinen konstruktiven Mehraufwand, die beiden Kupplungen unabhängig voneinander anzusteuern. Dadurch wird nicht nur das sonst nötige Achsdifferential so überflüssig, sondern auch die Wirkung einer steuerbaren Differentialsperre erzielt, die ein konventionelles Differential noch vergrößern und verteuern würde. Darüber hinaus ist es sogar möglich, in begrenztem Umfang Giermomente zu erzeugen. Man denke an ein in einer Haarnadelkurve steckengebliebenes Fahrzeug. Auch die Steuerung selbst ist dadurch einfach und billig, dass der Elektromotor und die Kupplungen von einem Steuergerät angesteuert werden, das seine Ein-55 gangssignale aus dem ABS - Steuergerät bezieht. 2Thanks to the invention, it means no additional design effort to control the two clutches independently. As a result, not only the otherwise necessary axle differential is so superfluous, but also the effect of a controllable differential lock achieved, which would increase a conventional differential and more expensive. In addition, it is even possible to generate yaw momentum to a limited extent. Think of a stuck vehicle in a hairpin bend. The control itself is also simple and cheap in that the electric motor and the clutches are controlled by a control unit that receives its input signals from the ABS control unit. 2

Claims (6)

AT 007 740 U1 In Weiterverfolgung dieser Maßnahme kann die Steuerung des Elektromotors und der beiden Kupplungen in das ABS - Steuergerät integriert sein. Dann sind an dem bereits vorhandenen ABS -Steuergerät nur Programmänderungen und die Hinzufügung von drei Ausgängen erforderlich, was weder Bauraum braucht noch die Kosten merklich erhöht. Schließlich schlagen die Vorteile der 5 Erfindung besonders zu Buche, wenn die im Normalbetrieb nicht angetriebene Achse des Kraftfahrzeuges die Hinterachse ist. Im folgenden wird die Erfindung anhand schematischer Darstellungen erfindungsgemäßer Zusatzantriebe beschrieben und erläutert. Es stellen dar: Fig. 1: eine erste Ausführungsform, 10 Fig. 2: eine zweite Ausführungsform. In Fig. 1 ist von dem Kraftfahrzeug nur eine erste angetriebene Achse 1 und eine zweite im Normalbetrieb nicht angetriebene Achse 2 angedeutet. Die erste angetriebene Achse 1 wird von einem Verbrennungsmotor 3 über ein Schaltgetriebe 4 und ein Achsdifferential 5 angetrieben, das die Antriebskraft auf die beiden Halbwellen und ihre Räder 6,7 verteilt. 15 Die zweite Achse 2 hat keine Antriebsverbindung mit der ersten Achse 1, sondern einen elektrischen Zusatzantrieb 9, strichliert eingerahmt. Dieser strichlierte Rahmen enthält einen Elektromotor 10, bestehend aus einem Stator 11 und einem eine Hohlwelle bildenden Rotor 12 in dessen Innerem, ein Planetengetriebe 13, dessen ein Glied mit einem nur angedeuteten Gehäuse 14 verbunden ist, und weiters einer den Rotor 12 des Elektromotors durchsetzenden Zentralwelle 15 20 mit einer Reibungskupplung 16,17 an ihrer jeden Seite. Über die linke Reibungskupplung 16 wird steuerbar die Antriebsverbindung zur linken Achswelle 18 und über die rechte Reibungskupplung 17 wird steuerbar die Antriebsverbindung zur rechten Achswelle 19 hergestellt. So sind die Räder 20,21 angetrieben. Wenn das Kraftfahrzeug, so wie hier, mit einem ABS ausgestattet ist, hat es ein den Bremsein-25 griff in Abhängigkeit von gemessenen Raddrehzahlen (dazu die Raddrehzahlsensoren 31,32,33,34) beeinflussendes ABS - Steuergerät 30. Die Raddrehzahlsignale stehen auch für die Steuerung des Zusatzantriebes zur Verfügung, etwa über einen CAN - Bus. Im beschriebenen Ausführungsbeispiel ist die Steuerung des Zusatzantriebes sogar in das ABS - Steuergerät 30 integriert. Es liefert daher auch die Ausgangssignale für die Steuerung des Zusatzantriebes: durch 30 die Leitung 35 ein Motorsteuerungssignal zur Leistungselektronik, die dem Akkumulator 40 Strom entnimmt und ihn gesteuert über die Speiseleitung 38 dem Elektromotor 10 zuführt; und durch die Leitungen 36,37, die separat generierte Steuersignale zu den beiden Kupplungen senden. Dadurch kann jede der beiden Kupplungen einzeln angesteuert werden und so die beiden Achswellen unabhängig voneinander mit der jeweils berechneten Drehzahl angetrieben werden. Werden beide 35 Kupplungen 16,17 gelöst, so ist der gesamte Zusatzantrieb abgekuppelt und kann stillgesetzt werden. In der Ausführungsform der Fig. 2 sind die Bezugszeichen entsprechender Teile um 100 erhöht. Der Hilfsantrieb wird gebildet von einem Elektromotor 110 und in einem Gehäuse 114 (strichliert angedeutet) ein von miteinander kämmenden Zahnrädern 111,112,113 gebildetes festwelliges 40 Untersetzungsgetriebe 109 und Kupplungen 116,117. Das letzte Zahnrad 113 sitzt auf dem Zentralteil, der auf nicht dargestellte Weise im Gehäuse 114 gelagert und hier ein zylindrischer Hohlkörper 115 ist. Dieser bildet die äussere Kupplungshälfte beider steuerbarer Reibungskupplungen 116,117. Entsprechend sind auch die voneinander unabhängig steuerbaren Aktuatoren 134,135 über Leitungen 136,137 angesteuert. 45 ANSPRÜCHE: 1. Elektrischer Zusatzantrieb für die im Normalbetrieb nicht angetriebene Achse (2; 102) so eines Kraftfahrzeuges, bestehend aus einem Elektromotor, einem Untersetzungsgetriebe, den beiden Achswellen und einer Vorrichtung zum Trennen der Antriebsverbindung im Normalbetrieb, dadurch gekennzeichnet, dass der Elektromotor (10;110) über das Untersetzungsgetriebe (13; 109) einen Zentralteil (15;115) antreibt, der über je eine steuerbare Kupplung (16,17; 116, 117) mit den beiden Achswellen (18,19; 118,119) antriebsver-55 bunden ist. 3 5 AT 007 740 U1AT 007 740 U1 Following this measure, the control of the electric motor and the two clutches can be integrated into the ABS control unit. Then, only program changes and the addition of three outputs are required on the existing ABS control unit, which requires neither installation space nor significantly increases the costs. Finally, the advantages of the invention are especially significant if the axle of the motor vehicle, which is not driven in normal operation, is the rear axle. In the following the invention with reference to schematic representations of additional drives according to the invention will be described and explained. FIG. 1 shows a first embodiment, FIG. 10 shows a second embodiment. In Fig. 1 of the motor vehicle only a first driven axle 1 and a second non-driven in normal operation axis 2 is indicated. The first driven axle 1 is driven by an internal combustion engine 3 via a manual transmission 4 and an axle differential 5 which distributes the driving force to the two half shafts and their wheels 6, 7. 15 The second axis 2 has no drive connection with the first axis 1, but an electric auxiliary drive 9, framed by dashed lines. This dashed frame includes an electric motor 10, consisting of a stator 11 and a hollow shaft forming rotor 12 in the interior, a planetary gear 13, whose one member is connected to an only indicated housing 14, and further a rotor 12 of the electric motor passing through the central shaft 15 20 with a friction clutch 16,17 on each side. The drive connection to the left axle shaft 18 is controllably controlled via the left friction clutch 16, and the drive connection to the right axle shaft 19 is controllably established via the right friction clutch 17. So the wheels 20,21 are driven. If the motor vehicle is equipped with an ABS, as here, it has an ABS control unit 30 which influences the brake lever as a function of measured wheel speeds (and the wheel speed sensors 31, 32, 33, 34). The wheel speed signals also stand for The control of the auxiliary drive is available, for example via a CAN bus. In the described embodiment, the control of the auxiliary drive is even integrated into the ABS control unit 30. It therefore also provides the output signals for the control of the auxiliary drive: 30 through the line 35, a motor control signal to the power electronics, which takes the accumulator 40 power and fed him controlled via the feed line 38 to the electric motor 10; and through lines 36, 37 that send separately generated control signals to the two clutches. As a result, each of the two clutches can be controlled individually and so the two axle shafts are driven independently of each other with the respective calculated speed. If both 35 clutches 16,17 solved, the entire auxiliary drive is disconnected and can be shut down. In the embodiment of FIG. 2, the reference numerals of corresponding parts are increased by 100. The auxiliary drive is formed by an electric motor 110 and in a housing 114 (indicated by dashed lines) formed by intermeshing gears 111,112,113 fixed-wave 40 reduction gear 109 and couplings 116,117. The last gear 113 is seated on the central part, which is mounted in a manner not shown in the housing 114 and here is a cylindrical hollow body 115. This forms the outer coupling half of both controllable friction clutches 116,117. Accordingly, the independently controllable actuators 134,135 are controlled via lines 136,137. Requirements: 1. Electric auxiliary drive for the non-driven in normal operation axis (2; 102) such a motor vehicle, consisting of an electric motor, a reduction gear, the two axle shafts and a device for separating the drive connection in normal operation, characterized in that the electric motor (10; 110) via the reduction gear (13; 109) drives a central part (15; 115), which via a respective controllable coupling (16,17; 116, 117) with the two axle shafts (18,19; 55 is bound. 3 5 AT 007 740 U1 2. Elektrischer Zusatzantrieb nach Anspruch 1, dadurch gekennzeichnet, dass der Zentralteil (115) ein zylindrischer Hohlkörper ist, der den Aussenteil beider steuerbarer Kupplungen (116,117) bildet und über ein festwelliges Untersetzungsgetriebe (109) angetrieben ist.2. Electrical auxiliary drive according to claim 1, characterized in that the central part (115) is a cylindrical hollow body which forms the outer part of both controllable clutches (116,117) and is driven by a fixed-wave reduction gear (109). 3. Elektrischer Zusatzantrieb nach Anspruch 1, dadurch gekennzeichnet, dass der Zentralteil (15) eine Welle ist, der Elektromotor (10) den Zentralteil (15) koaxial umgibt und das Untersetzungsgetriebe (13) ein ebenfalls koaxiales Planetengetriebe ist. 103. Electrical auxiliary drive according to claim 1, characterized in that the central part (15) is a shaft, the electric motor (10) surrounding the central part (15) coaxially and the reduction gear (13) is also a coaxial planetary gear. 10 4. Elektrischer Zusatzantrieb nach Anspruch 1, dadurch gekennzeichnet, dass der Elektromotor (10) und die beiden Kupplungen (16,17; 116,117) unabhängig voneinander von einem Steuergerät (37) angesteuert werden, das seine Eingangssignale aus dem ABS -Steuergerät (30) bezieht.4. Electric auxiliary drive according to claim 1, characterized in that the electric motor (10) and the two clutches (16, 17; 116, 117) are controlled independently of one another by a control device (37) which receives its input signals from the ABS control device (30). refers. 5. Elektrischer Zusatzantrieb nach Anspruch 4, dadurch gekennzeichnet, dass die Steuerung des Elektromotors (10;110) und der beiden Kupplungen (16,17; 116,117) in das ABS - Steuergerät (30) integriert ist. 155. Electric auxiliary drive according to claim 4, characterized in that the control of the electric motor (10, 110) and the two clutches (16, 17, 116, 117) is integrated into the ABS control unit (30). 15 6. Elektrischer Zusatzantrieb nach Anspruch 1, dadurch gekennzeichnet, dass die im Normalbetrieb nicht angetriebene Achse (2; 102) des Kraftfahrzeuges die Hinterachse ist. HIEZU 2 BLATT ZEICHNUNGEN 20 25 30 35 40 45 50 4 556. Electrical auxiliary drive according to claim 1, characterized in that the non-driven in normal operation axis (2; 102) of the motor vehicle is the rear axle. HIEZU 2 SHEET DRAWINGS 20 25 30 35 40 45 50 4 55
AT0050504U 2004-07-16 2004-07-16 ELECTRICAL AUXILIARY DRIVE FOR MOTOR VEHICLES AT7740U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT0050504U AT7740U1 (en) 2004-07-16 2004-07-16 ELECTRICAL AUXILIARY DRIVE FOR MOTOR VEHICLES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0050504U AT7740U1 (en) 2004-07-16 2004-07-16 ELECTRICAL AUXILIARY DRIVE FOR MOTOR VEHICLES

Publications (1)

Publication Number Publication Date
AT7740U1 true AT7740U1 (en) 2005-08-25

Family

ID=34637583

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0050504U AT7740U1 (en) 2004-07-16 2004-07-16 ELECTRICAL AUXILIARY DRIVE FOR MOTOR VEHICLES

Country Status (1)

Country Link
AT (1) AT7740U1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010057782A1 (en) * 2008-11-19 2010-05-27 Zf Friedrichshafen Ag Multi-axle hybrid drive system for a vehicle
WO2011134673A1 (en) * 2010-04-30 2011-11-03 Magna Steyr Fahrzeugtechnik Ag & Co Kg Drive train
WO2017157479A1 (en) 2016-03-18 2017-09-21 Gkn Automotive Ltd. Electric drive
WO2018206089A1 (en) 2017-05-09 2018-11-15 Gkn Automotive Ltd. Dual clutch unit and electric drive comprising such a dual clutch unit
AT520670A1 (en) * 2018-04-10 2019-06-15 Avl List Gmbh DEVICE FOR SWITCHING A DRIVE TRAIN ARRANGEMENT

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010057782A1 (en) * 2008-11-19 2010-05-27 Zf Friedrichshafen Ag Multi-axle hybrid drive system for a vehicle
US8448730B2 (en) 2008-11-19 2013-05-28 Zf Friedrichshafen Ag Multi-axle hybrid drive system for a vehicle
WO2011134673A1 (en) * 2010-04-30 2011-11-03 Magna Steyr Fahrzeugtechnik Ag & Co Kg Drive train
WO2017157479A1 (en) 2016-03-18 2017-09-21 Gkn Automotive Ltd. Electric drive
US10493978B2 (en) 2016-03-18 2019-12-03 Gkn Automotive Ltd. Electric drive
WO2018206089A1 (en) 2017-05-09 2018-11-15 Gkn Automotive Ltd. Dual clutch unit and electric drive comprising such a dual clutch unit
US11125278B2 (en) 2017-05-09 2021-09-21 Gkn Automotive Ltd. Dual clutch unit with electric drive
AT520670A1 (en) * 2018-04-10 2019-06-15 Avl List Gmbh DEVICE FOR SWITCHING A DRIVE TRAIN ARRANGEMENT

Similar Documents

Publication Publication Date Title
DE10319108B4 (en) Four-wheel drive vehicle with hybrid drive
DE102011056046B4 (en) Drive train of a purely electric all-wheel drive motor vehicle
DE112013002482B4 (en) Interruptible powertrain for a four-wheel drive vehicle
WO2013091763A1 (en) Drive train of a solely electrically driven motor vehicle having two electric motors
DE102009004414B4 (en) VEHICLE WITH A TORQUE DISTRIBUTION SYSTEM TO INTRODUCE A TORQUE DIFFERENCE BETWEEN TWO AXIALLY ALIGNED WHEELS
DE102012100865B4 (en) Drive arrangement with electric machine and motor vehicle with such a drive arrangement
DE102017220165B4 (en) Drive device for a vehicle axle of a two-lane vehicle
WO2014033137A1 (en) Mechanical and electric drive train of a motor vehicle and motor vehicle with mechanical and electric drive train
DE102009056366A1 (en) Drive system for a motor vehicle
WO2005110790A2 (en) Drive device for motor vehicles
WO2013120594A1 (en) Drive train of a purely electrically drivable motor vehicle
EP2221207A1 (en) Drive device for an axle of a motor vehicle and motor vehicle
DE202011109790U1 (en) Powertrain of a purely electric allradbetreibbaren motor vehicle
DE112017006070T5 (en) DRIVE UNIT ASSEMBLY
DE102008000777A1 (en) Vehicle power divider for use in farm vehicle for distributing driving power of e.g. electric motor, has intermediate element detachably connected with housing, and output shaft permanently connected with element of planetary gear train
DE102016221796B4 (en) Hybrid transmission and hybrid powertrain
DE102005029112A1 (en) Powertrain of a motor vehicle
WO2019038001A1 (en) Central drive unit for a vehicle, and drivetrain arrangement having the central drive unit
DE102019132591A1 (en) Drive device for a vehicle axle of a vehicle
WO2014111217A1 (en) Hybrid drive system for a motor vehicle
AT7740U1 (en) ELECTRICAL AUXILIARY DRIVE FOR MOTOR VEHICLES
WO2015185313A1 (en) Transmission for splitting a driving torque as needed
WO2005080116A2 (en) Drive train of an all-wheel drive vehicle
DE102013009541B4 (en) Drive device for all-wheel drive motor vehicles
WO2022128665A1 (en) Tractor grouping with driven trailer

Legal Events

Date Code Title Description
MM01 Lapse because of not paying annual fees

Effective date: 20130731