DE4434237A1 - Vehicle axle with wheels powered by individual electric drives - Google Patents

Vehicle axle with wheels powered by individual electric drives

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Publication number
DE4434237A1
DE4434237A1 DE4434237A DE4434237A DE4434237A1 DE 4434237 A1 DE4434237 A1 DE 4434237A1 DE 4434237 A DE4434237 A DE 4434237A DE 4434237 A DE4434237 A DE 4434237A DE 4434237 A1 DE4434237 A1 DE 4434237A1
Authority
DE
Germany
Prior art keywords
vehicle axle
axle according
clutch
drive
vehicle
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.)
Ceased
Application number
DE4434237A
Other languages
German (de)
Inventor
Heinz Weiss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deere and Co
Original Assignee
Deere and Co
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 Deere and Co filed Critical Deere and Co
Priority to DE4434237A priority Critical patent/DE4434237A1/en
Publication of DE4434237A1 publication Critical patent/DE4434237A1/en
Ceased legal-status Critical Current

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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
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
    • 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
    • B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
    • 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
    • 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
    • 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
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0061—Disposition of motor in, or adjacent to, traction wheel the motor axle being parallel to the wheel axle
    • 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
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/40—Electrical machine applications
    • B60L2220/44—Wheel Hub motors, i.e. integrated in the wheel hub
    • 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
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/40—Electrical machine applications
    • B60L2220/46—Wheel motors, i.e. motor connected to only one wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
    • F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts

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  • 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

A vehicle axle powered by an individual electric drive to each of the roadwheels (10) for particular application to farm tractors and agricultural machines has an axially aligned controllable coupling (52) for regulating the drive-to-drive load distribution. The electric motors (22) are powered by a suitable IC engined generator (not shown) and their outputs are available at the respective wheels (10) via an intermediate train (34,40) and a sun and planet reduction gear (44,46,48) in the fixed end-drive housings (18). A sensor (not shown) registers movements of the steering attachments (20) during cornering and the individual motor loads are measured to ensure optimal power distribution via a coupling controller (not shown) subject to a maximum steering angle.

Description

Die Erfindung betrifft eine Fahrzeugachse mit elektrischen Einzelradantrieben insbesondere für landwirtschaftliche Fahrzeuge.The invention relates to a vehicle axle with electrical Independent wheel drives especially for agricultural Vehicles.

Durch die DE-A-41 08 647 und die US-A-4,953,646 sind elek­ trische Einzelradantriebe für Fahrzeuge bekannt geworden, bei denen die Antriebsleistung von einer fahrzeugeigenen Verbren­ nungskraftmaschine erzeugt, in einem Generator in elektrische Energie umgewandelt und auf Elektromotoren verteilt wird, die jeweils ein zugehöriges Rad des Fahrzeuges antreiben.By DE-A-41 08 647 and US-A-4,953,646 are elek trical independent wheel drives for vehicles become known which the drive power from a vehicle's own combustion generated in a generator in electrical Energy is converted and distributed to electric motors that each drive an associated wheel of the vehicle.

Insbesondere bei landwirtschaftlichen Fahrzeugen, wie bei­ spielsweise Ackerschleppern, werden die Einzelradantriebe in Abhängigkeit der Einsatzbedingungen unterschiedlich belastet.Especially with agricultural vehicles, such as for example, agricultural tractors, the single wheel drives in Depending on the operating conditions, different loads.

Beispielsweise werden bei Ackerschleppern bei schwerem Zug über die Hinterräder wesentlich höhere Antriebsmomente als über die Vorderräder übertragen. Selbst wenn man davon aus­ geht, daß die Vorderachse und die Hinterachse für den Aus­ legungsfall gleichmäßig mit je 50% des Gesamtgewichtes bela­ stet sind, werden bei schwerem Zug beispielsweise nur 30% des Gesamtantriebsmomentes über die Vorderachse und die rest­ lichen 70% über die Hinterachse aufgebracht.For example, in the case of agricultural tractors when there is a heavy train much higher torque than the rear wheels transmitted via the front wheels. Even if you assume goes that the front axle and the rear axle for the off load evenly with 50% of the total weight steady, for example, only 30% of the total drive torque via the front axle and the rest 70% applied over the rear axle.

Durch die ungleiche Belastung eines Hinterrades, z, B. beim Pflügen in der Furche, muß davon ausgegangen werden, daß ein Einzelradantrieb der Hinterachse mit etwa 50% des Gesamtan­ triebsmomentes des Schleppers ausgelegt werden muß. Dies führt zu einer Überlastung oder Überdimensionierung der An­ triebsmotoren.Due to the uneven loading of a rear wheel, e.g. Plowing in the furrow, it must be assumed that a Independent wheel drive of the rear axle with about 50% of the total drive torque of the tractor must be designed. This leads to an overload or oversizing of the type drive motors.

Die der Erfindung zugrunde liegende Aufgabe wird darin gese­ hen, eine Fahrzeugachse mit elektrischen Einzelradantrieben vorzuschlagen, bei der die genannten Nachteile vermieden wer­ den. Insbesondere soll vermieden werden, daß bei ungleich­ mäßiger Belastung der Antriebsräder der Fahrzeugachse einer der Einzelradantriebe über längere Zeit überbeansprucht wird. Ferner soll eine Überdimensionierung der Einzelradantriebe vermieden werden.The object underlying the invention is seen therein hen, a vehicle axle with electric independent wheel drives To propose who avoided the disadvantages mentioned the. In particular, it should be avoided that in the case of unequal moderate load on the drive wheels of the vehicle axle the single wheel drives are overused for a long time. Furthermore, an oversizing of the independent wheel drives is said be avoided.

Die Aufgabe wird erfindungsgemäß durch die Lehre des Patent­ anspruchs 1 gelöst. Weitere vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung gehen aus den Unteransprüchen hervor.The object is achieved by the teaching of the patent claim 1 solved. Further advantageous configurations and Further developments of the invention result from the subclaims forth.

Durch die kraftschlüssige Verbindung der Einzelradantriebe können die Antriebsmomente der Elektromotoren zusammengefaßt und gleichzeitig auf beide Räder der Fahrzeugachse geleitet werden. Damit unterstützt der Einzelradantrieb, der das An­ triebsrad antreibt, das das kleiner Drehmoment aufnimmt, den anderen Einzelradantrieb, der das Antriebsrad antreibt, das das größere Drehmoment aufnimmt. Hierdurch können einerseits Überbelastungen eines der Einzelradantriebe und andererseits Überdimensionierungen vermieden werden.Due to the positive connection of the independent wheel drives can summarize the driving torques of the electric motors and simultaneously directed to both wheels of the vehicle axle will. The single wheel drive that supports the An drive wheel that absorbs the small torque that other single wheel drive that drives the drive wheel that absorbs the greater torque. In this way, on the one hand Overloads of one of the independent wheel drives and on the other Oversizing can be avoided.

Gemäß einer bevorzugten Ausgestaltung der Erfindung sind Mittel zur Erfassung des aktuellen Lenkwinkels und/oder der Belastungen der Einzelradantriebe vorgesehen. Die entspre­ chenden Meßwerte werden durch eine Steuereinrichtung ausge­ wertet, um die Kupplung, durch die die beiden Einzelradan­ triebe miteinander verbindbar sind, bei Geradeausfahrt und/ oder bei ungleichmäßiger Belastung der Einzelradantriebe automatisch zu schließen.According to a preferred embodiment of the invention Means for detecting the current steering angle and / or the Loads of the independent wheel drives are provided. The correspond The measured values are output by a control device evaluates to the clutch through which the two independent wheels drives are interconnectable when driving straight ahead and / or if the independent wheel drives are loaded unevenly to close automatically.

Durch einen Umschalter läßt sich die Kupplung dauerhaft ein­ schalten, dauerhaft ausschalten oder auf Automatikbetrieb einstellen, bei dem eine Umschaltung der Kupplung aufgrund der Meßwerte des Lenkwinkels und/oder der Einzelradbelastung erfolgt.The clutch can be permanently engaged by means of a changeover switch switch, switch off permanently or switch to automatic mode  adjust in which a clutch changeover due to the measured values of the steering angle and / or the individual wheel load he follows.

Anhand der Zeichnung, die ein Ausführungsbeispiel der Erfin­ dung zeigt, werden nachfolgend die Erfindung sowie weitere Vorteile und vorteilhafte Weiterbildungen und Ausgestaltungen der Erfindung näher beschrieben und erläutert.Based on the drawing, which is an embodiment of the Erfin shows the invention and the others below Advantages and advantageous developments and refinements the invention described and explained in more detail.

Es zeigt:It shows:

Fig. 1 das Prinzipbild einer erfindungsgemäßen Rad­ achse, Fig. 1 the principle axis image of a wheel according to the invention,

Fig. 2 die Aufsicht einer Stirnradstufe aus Fig. 1 und Fig. 2 shows the supervision of a spur gear from Fig. 1 and

Fig. 3 die schematische Darstellung einer Steuerung der Kupplung. Fig. 3 is a schematic representation of a control of the clutch.

Aus der Fig. 1 geht der symmetrische Aufbau zweier Einzelrad­ antriebe einer Fahrzeugachse hervor. Gleiche Bauteile wurden mit den selben Bezugsziffern belegt. Die beiden Radantriebe entsprechen den in der DE-A-41 08 647 beschriebenen, die sich für die vorliegende Erfindung besonders eignen.From Fig. 1 shows the symmetrical structure of two independent wheel drives of a vehicle axle. The same components have been given the same reference numbers. The two wheel drives correspond to those described in DE-A-41 08 647, which are particularly suitable for the present invention.

Jeder Einzelradantrieb treibt ein Rad 10 an, dessen Radachse 12 durch zwei Lager 14, 16 in einem fahrzeugfesten Endan­ triebsgehäuse 18 gelagert ist. Das Endantriebsgehäuse 18 wird durch einen Achskörper 20 getragen, bei dem es sich sowohl um eine Starrachse als auch um eine Lenkachse handeln kann. Der Achskörper 20 greift radial zur Radachse 12 versetzt am End­ antriebsgehäuse 18 an. Each single-wheel drive drives a wheel 10 , the wheel axle 12 is mounted by two bearings 14 , 16 in a vehicle-mounted Endan drive housing 18 . The final drive housing 18 is supported by an axle body 20 , which can be both a rigid axle and a steering axle. The axle body 20 engages radially to the wheel axle 12 offset at the end drive housing 18 .

Ebenfalls radial zur Radachse 12 versetzt ist ein Elektromo­ tor 22 an dem Endantriebsgehäuse 18 angeflanscht. Bei dem Elektromotor 22 handelt es sich um einen Asynchronmotor mit einem Rotor 24 und einer Ständerwicklung 26. Die den Rotor 24 tragende Motorwelle 28 ist an einem Ende in einem Lager 30 gehalten, welches als Festlager dient und den Rotor 24 sowohl in radialer als auch in axialer Lage fixiert.Also offset radially to the wheel axis 12 is an Elektromo tor 22 flanged to the final drive housing 18 . The electric motor 22 is an asynchronous motor with a rotor 24 and a stator winding 26 . The motor shaft 28 carrying the rotor 24 is held at one end in a bearing 30 which serves as a fixed bearing and fixes the rotor 24 both in the radial and in the axial position.

Das andere Ende der Motorwelle 28 weist kein solches Lager auf. Es steht lediglich über eine Dichtung 32 mit dem Endan­ triebsgehäuse 18 in Verbindung, um die Durchtrittsöffnung im Endantriebsgehäuse 18 gegen Schmiermittelaustritt abzudich­ ten. Dieses andere Ende der Motorwelle 28 trägt ein Antriebs­ ritzel 34, das in das Endantriebsgehäuse 18 hineinragt.The other end of the motor shaft 28 has no such bearing. It is only via a seal 32 with the Endan drive housing 18 in connection to th the passage opening in the final drive housing 18 against leakage of lubricant. This other end of the motor shaft 28 carries a drive pinion 34 which protrudes into the final drive housing 18 .

Wie es aus Fig. 2 hervorgeht, steht das Antriebsritzel 34 mit einer Stirnradstufe des Endantriebes in Eingriff. Es greift in die Verzahnung zweier sich diametral gegenüberstehender Abtriebsräder 36, 38 ein, die ihrerseits mit einem Eingangs­ rad 40 des Endantriebes in Eingriff stehen. Durch diesen Zahneingriff ist das Antriebsritzel 34 in radialer Richtung festgelegt. Es kann weder seitlich noch in vertikaler Rich­ tung ausbrechen.As apparent from Fig. 2, is the drive pinion 34 having a spur gear of the final drive in engagement. It engages in the teeth of two diametrically opposed driven wheels 36 , 38 , which in turn are in engagement with an input wheel 40 of the final drive. The drive pinion 34 is fixed in the radial direction by this tooth engagement. It cannot break out laterally or vertically.

Das Eingangsrad 40 steht gemäß Fig. 1 über eine konzentrisch zur Radachse 12 angeordnete Hülse 42 mit einem Sonnenrad 44 eines Planetengetriebes in Verbindung. Das Sonnenrad 44 treibt mehrere auf einem Planetenradträger 46 angeordnete Planetenräder 48 an, die auf einem gehäusefesten Hohlrad 50 abrollen. Der Planetenradträger 46 ist drehfest auf der Radachse 12 montiert und überträgt das Drehmoment auf das Rad 10.The input gear 40 is shown in FIG. 1 via a concentrically arranged to the wheel axis 12 sleeve 42 having a sun gear 44 of a planetary transmission in conjunction. The sun gear 44 drives a plurality of planet gears 48 which are arranged on a planet gear carrier 46 and which roll on a ring gear 50 fixed to the housing. The planet gear carrier 46 is rotatably mounted on the wheel axle 12 and transmits the torque to the wheel 10 .

Die beiden Motorwellen 28 fluchten miteinander. Zwischen ihnen ist eine Kupplung 52 eingefügt, die sich vorzugsweise hydraulisch betätigen läßt und die beiden Motorwellen 28 wahlweise miteinander verbindet. Die Kupplung 52 wird durch eine Steuereinrichtung angesteuert, die schematisch in Fig. 3 dargestellt ist.The two motor shafts 28 are aligned with one another. A clutch 52 is inserted between them, which can preferably be operated hydraulically and optionally connects the two motor shafts 28 to one another. The clutch 52 is controlled by a control device, which is shown schematically in FIG. 3.

Die Steuereinrichtung enthält eine elektronische Steuerein­ heit 58, die die über die Leitung 60 eingelesenen Signale eines Lenkwinkelsensors und die über die beiden Leitungen 62 und 64 eingelesenen Signale der Belastung der Einzelantriebe auswertet. Die Belastung der Einzelantriebe wird durch nicht gezeigte elektrische Kreise ermittelt, die die Eingangslei­ stungen der Elektromotoren 22 feststellen.The control device contains an electronic control unit 58 which evaluates the signals of a steering angle sensor read in via line 60 and the signals read in via the two lines 62 and 64 of the load on the individual drives. The load of the individual drives is determined by electrical circuits, not shown, which determine the inputs of the electric motors 22 .

Die Steuereinheit 58 steht ferner mit einem vorzugsweise in der Fahrzeugkabine angeordneten, durch eine Bedienungsperson einstellbaren Umschalter 66 in Verbindung, der zwischen den Stellungen EIN, AUS und AUTO umschaltbar ist. Die Steuerein­ heit 58 gibt über eine Leitung 68 Steuersignale an die Kupp­ lung 52 aus, um diese einzurücken, wobei die beiden Motorwel­ len 28 kraftschlüssig miteinander verbunden werden, oder auszurücken, wobei die beiden Einzelradantriebe unabhängig voneinander arbeiten.The control unit 58 is also connected to a changeover switch 66 which is preferably arranged in the vehicle cabin and which can be adjusted by an operator and which can be switched between the ON, OFF and AUTO positions. The Steuerein unit 58 outputs control signals to the clutch 52 via a line 68 in order to engage them, the two motor shafts 28 being positively connected to one another, or disengaging, the two independent wheel drives working independently of one another.

Befindet sich der Umschalter 66 in seiner EIN-Stellung, so ist die Kupplung 52 geschlossen, so daß die beiden Elektromo­ toren 22 gemeinsam beide Räder 10 antreiben. Bei der AUS- Stellung ist die Kupplung geöffnet, und die beiden Einzelrad­ antriebe arbeiten unabhängig voneinander. In der AUTO-Stel­ lung wertet die Steuereinheit 58 die Signale des Lenkwinkel­ sensors und der beiden Eingangsleistungen der Elektromotoren 22 aus und schließt die Kupplung 52 nur dann, wenn ein vor­ gebbarer Lenkwinkel des Fahrzeugs unterschritten wird und gleichzeitig eine unterschiedliche Belastung der beiden Ein­ zelradantriebe vorliegt.The switch 66 is in its ON position, the clutch 52 is closed, so that the two electromotors 22 drive both wheels 10 together. In the OFF position, the clutch is open and the two single wheel drives work independently of one another. In the AUTO position, the control unit 58 evaluates the signals from the steering angle sensor and the two input powers of the electric motors 22 and closes the clutch 52 only if the steering angle of the vehicle falls below a predetermined value and at the same time there is a different load on the two individual wheel drives .

Claims (9)

1. Fahrzeugachse mit elektrischen Einzelradantrieben, ins­ besondere für landwirtschaftliche Fahrzeuge, dadurch gekennzeichnet, daß eine Kupplung (52) vorgesehen ist, durch die die Einzelradantriebe miteinander kraft­ schlüssig verbindbar sind.1. Vehicle axle with electric independent wheel drives, in particular for agricultural vehicles, characterized in that a clutch ( 52 ) is provided, through which the independent wheel drives can be positively connected to one another. 2. Fahrzeugachse nach Anspruch 1, dadurch gekennzeichnet, daß jeder Einzelradantrieb wenigstens einen stufenlos einstellbaren Elektromotor (22) aufweist, dessen elek­ trische Eingangsenergie durch einen von einer fahrzeug­ eigenen Verbrennungsmaschine angetriebenen Generator erzeugt wird, und der über ein Getriebe mit einem der Antriebsräder (10) der Achse verbunden ist.2. Vehicle axle according to claim 1, characterized in that each independent wheel drive has at least one continuously adjustable electric motor ( 22 ), the elec trical input energy of which is generated by a generator driven by a vehicle's own internal combustion engine, and via a transmission with one of the drive wheels ( 10 ) the axis is connected. 3. Fahrzeugachse nach Anspruch 2, dadurch gekennzeichnet, daß das Getriebe ein Untersetzungsgetriebe nach Art eines Planetengetriebes ist.3. Vehicle axle according to claim 2, characterized in that the transmission is a reduction gear according to Art of a planetary gear. 4. Fahrzeugachse nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Kupplung (52) hydraulisch betä­ tigbar ist.4. Vehicle axle according to one of claims 1 to 3, characterized in that the coupling ( 52 ) can be actuated hydraulically. 5. Fahrzeugachse nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Kupplung (52) elektrisch an­ steuerbar ist.5. Vehicle axle according to one of claims 1 to 4, characterized in that the clutch ( 52 ) is electrically controllable. 6. Fahrzeugachse nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß wenigstens ein Lenkwinkelsensor vorgesehen ist, dessen Ausgangssignal (60) zur automa­ tischen Steuerung der Kupplung (52) herangezogen wird. 6. Vehicle axle according to one of claims 1 to 5, characterized in that at least one steering angle sensor is provided, the output signal ( 60 ) is used for automatic control of the clutch ( 52 ). 7. Fahrzeugachse nach Anspruch 6, dadurch gekennzeichnet, daß Mittel vorgesehen sind, die bei Überschreiten eines vorgebbaren Lenkwinkels die Kupplung (52) öffnen.7. Vehicle axle according to claim 6, characterized in that means are provided which open the clutch ( 52 ) when a predeterminable steering angle is exceeded. 8. Fahrzeugachse nach Anspruch 1, dadurch gekennzeichnet, daß Mittel zur Erfassung der elektrischen Eingangslei­ stung der Elektromotoren (22) vorgesehen sind und daß bei Geradeausfahrt und/oder ungleichmäßiger Belastung der Einzelantriebe diese automatisch kraftschlüssig miteinander verbunden werden.8. A vehicle axle according to claim 1, characterized in that means for detecting the electrical input power of the electric motors ( 22 ) are provided and that when driving straight ahead and / or unevenly loading the individual drives, these are automatically connected to one another in a force-locking manner. 9. Fahrzeugachse nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß ein Umschalter (66) vorgesehen ist, durch den sich die Kupplung (52) dauerhaft einschalten, dauerhaft ausschalten oder auf Automatikbetrieb ein­ stellen läßt.9. Vehicle axle according to one of claims 1 to 8, characterized in that a changeover switch ( 66 ) is provided, through which the clutch ( 52 ) can be permanently switched on, permanently switched off or set to automatic mode.
DE4434237A 1994-09-24 1994-09-24 Vehicle axle with wheels powered by individual electric drives Ceased DE4434237A1 (en)

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DE4434237A DE4434237A1 (en) 1994-09-24 1994-09-24 Vehicle axle with wheels powered by individual electric drives

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Application Number Priority Date Filing Date Title
DE4434237A DE4434237A1 (en) 1994-09-24 1994-09-24 Vehicle axle with wheels powered by individual electric drives

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DE4434237A1 true DE4434237A1 (en) 1996-03-28

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DE4434237A Ceased DE4434237A1 (en) 1994-09-24 1994-09-24 Vehicle axle with wheels powered by individual electric drives

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Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2799162A1 (en) * 1999-10-01 2001-04-06 Technicatome Electrical drive for railway wheels, comprises two high torque low speed motors with bell shaped rotors, series parallel stator windings and universal couplings mounted between pairs of wheels
WO2004035342A1 (en) 2002-10-16 2004-04-29 Zf Friedrichshafen Ag Vehicle equipped with individual electric wheel drive trains
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US7530415B2 (en) 2000-01-26 2009-05-12 E-Traction Europe B.V. Wheel provided with driving means
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DE102011005621A1 (en) * 2011-03-16 2012-09-20 Zf Friedrichshafen Ag Drive device for driving a wheel of a suspension strut axle for an electrically driven vehicle
EP2546964A2 (en) 2011-07-11 2013-01-16 Magna Steyr Fahrzeugtechnik AG & Co KG Electrical machine with two rotors, drive unit and vehicle with such a machine
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US9132723B2 (en) 2011-03-16 2015-09-15 Zf Friedrichshafen Ag Drive device for driving a wheel for an electrically powered vehicle
WO2016152452A1 (en) * 2015-03-25 2016-09-29 Ntn株式会社 Two-motor vehicle drive device
CN106402292A (en) * 2016-08-21 2017-02-15 中车戚墅堰机车车辆工艺研究所有限公司 Wheel driving integrated device for vehicle
DE102016217550A1 (en) * 2016-09-14 2018-03-15 Magna powertrain gmbh & co kg METHOD FOR IMPROVING THE DRIVING DYNAMICS OF A VEHICLE AND DRIVE DEVICE SUITABLE FOR IMPLEMENTING THE PROCESS
DE102017203587A1 (en) 2017-03-06 2018-09-06 Audi Ag Drive device for a motor vehicle and motor vehicle with at least one drive device
CN109455043A (en) * 2018-12-27 2019-03-12 苏州绿控传动科技股份有限公司 A kind of new energy electric drive axle retarder
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CN109591583A (en) * 2018-12-26 2019-04-09 北京长城华冠汽车科技股份有限公司 A kind of power output system of electric car, method and electric car
IT201800006201A1 (en) * 2018-06-11 2019-12-11 ROAD VEHICLE WITH ELECTRIC PROPULSION
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DE102019214670A1 (en) * 2019-09-25 2021-03-25 Zf Friedrichshafen Ag Arrangement and method for driving a vehicle axle
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CN116080378A (en) * 2022-11-11 2023-05-09 山东华星精密机械有限公司 Dual-motor three-intermediate-shaft two-stage transmission wheel-side electric drive axle
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FR2799162A1 (en) * 1999-10-01 2001-04-06 Technicatome Electrical drive for railway wheels, comprises two high torque low speed motors with bell shaped rotors, series parallel stator windings and universal couplings mounted between pairs of wheels
US7530415B2 (en) 2000-01-26 2009-05-12 E-Traction Europe B.V. Wheel provided with driving means
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DE10343194B4 (en) 2002-10-15 2023-08-10 Arvinmeritor Technology,Llc Alternative motive power arrangement using a multi-armature electric motor
WO2004035342A1 (en) 2002-10-16 2004-04-29 Zf Friedrichshafen Ag Vehicle equipped with individual electric wheel drive trains
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WO2011067423A1 (en) 2009-12-02 2011-06-09 Fundacion Robotiker Traction system for an electric vehicle and electric vehicle including the traction system
US8640800B2 (en) 2010-02-26 2014-02-04 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Chassis for a motor vehicle having an electrical axle
DE102010010438A1 (en) 2010-02-26 2011-09-01 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Suspension for a motor vehicle with an electrical axis
DE102011005621A1 (en) * 2011-03-16 2012-09-20 Zf Friedrichshafen Ag Drive device for driving a wheel of a suspension strut axle for an electrically driven vehicle
US9132723B2 (en) 2011-03-16 2015-09-15 Zf Friedrichshafen Ag Drive device for driving a wheel for an electrically powered vehicle
DE102011005623A1 (en) * 2011-03-16 2012-09-20 Zf Friedrichshafen Ag Drive device for driving a wheel of a suspension strut axle for an electrically driven vehicle
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