DE2741531A1 - CONTROL DEVICE FOR A LOCKABLE DIFFERENTIAL GEAR OF A VEHICLE, IN PARTICULAR AN AGRICULTURAL AND / OR CONSTRUCTION TRACTOR - Google Patents
CONTROL DEVICE FOR A LOCKABLE DIFFERENTIAL GEAR OF A VEHICLE, IN PARTICULAR AN AGRICULTURAL AND / OR CONSTRUCTION TRACTORInfo
- Publication number
- DE2741531A1 DE2741531A1 DE19772741531 DE2741531A DE2741531A1 DE 2741531 A1 DE2741531 A1 DE 2741531A1 DE 19772741531 DE19772741531 DE 19772741531 DE 2741531 A DE2741531 A DE 2741531A DE 2741531 A1 DE2741531 A1 DE 2741531A1
- Authority
- DE
- Germany
- Prior art keywords
- control device
- differential gear
- locked
- bolt
- brake
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- F16H48/00—Differential gearings
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H48/30—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable 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
- B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
- B60K23/04—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for differential gearing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/44—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal
- B60Q1/441—Electric switches operable by the driver's pedals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/005—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles by locking of wheel or transmission rotation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
-
- 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
- F16H48/00—Differential gearings
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H48/30—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means
- F16H48/34—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
-
- 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
- F16H48/00—Differential gearings
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H2048/204—Control of arrangements for suppressing differential actions
-
- 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
- F16H48/00—Differential gearings
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H48/30—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means
- F16H48/34—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
- F16H2048/346—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators using a linear motor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
Description
Durch das Bremspedal insbesondere eines land-Vund/oder ba wirtschaftlich nutzbaren Fahrzeuges betätig/sare Steuereinrichtung zum Entriegeln der Sperrvorrichtung eines sperrbaren AusgleichsgetriebesBy the brake pedal in particular a land-V and / or ba economically usable vehicle actuated / sare control device to unlock the locking device of a lockable Differential
ugug
Die Erfindung bezieht sich auf eine Steuereinrichtung wie sie im Oberbegriff des Anspruches 1 beschrieben ist.The invention relates to a control device as described in the preamble of claim 1.
Durch die ÖT-OS 1 430 928 ist bereits eine derartige Steuereinrichtung bekannt geworden. Bei dieser Steuereinrichtung besteht das Betätigungsglied zur Überführung des Ausgleichgetriebes in den gesperrten oder entsperrten Zustand aus einem Pedal, das über ein Gestänge mit dem Steuerventil für eine hydraulische Kupplung in Verbindung steht, die in beaufschlagtem Zustand die beiden Abtriebswellen des Ausgleichsgetriebes miteinander verbindet. Die Anordnung des Pedals mit dem Gestänge ist dabei so getroffen, daß es als Kniehebel wirkt, wobei den jeweiligen Endstellungen des Kniehebels die beiden möglichen Positionen des Steuerventils zugeordnet sind.The ÖT-OS 1 430 928 already has such a control device known. In this control device, the actuator is used to transfer the differential gear in the locked or unlocked state from a pedal that is connected to the control valve via a linkage for a Hydraulic clutch is in connection, which in the acted upon state, the two output shafts of the differential gear with each other connects. The arrangement of the pedal with the linkage is made so that it acts as a toggle lever, with the the two possible positions of the control valve are assigned to the respective end positions of the toggle lever.
Da mechanische Gestänge dieser Art nicht nur in der Herstellung einen erheblichen Aufwand erfordern, sondern auch infolge unvermeidlicher Lagerreibung insbesondere, wenn das Ausgleichgetriebe gesperrt ist, einen erhöhten Kraftaufwand am Bremspedal erfordern, ist durch die DT-OS 1 680 172 bereits ein Ausgleichgetriebe vorgeschlagen worden, das kein mechanisches Gestänge zu seiner Sperrung benötigt. Vielmehr wird hier der beim Betätigen eines Bremspedals auftretende erhöhte Druck im Bremssystem über ein Steuerventil einer Reibungskupplung zugeleitet, deren Kupplungshälften auf jeweils einer der Abtriebswellen des Ausgleichgetriebes sitzen.Since mechanical linkages of this type require considerable effort not only in production, but also as a result unavoidable bearing friction, especially when the differential is locked, an increased effort on the Require brake pedal, a differential gear has already been proposed by DT-OS 1 680 172 that is not a mechanical one Linkage needed to lock it. Rather, the increased pressure that occurs when a brake pedal is actuated is used here in the brake system fed via a control valve to a friction clutch, the clutch halves of which are each on one of the output shafts of the differential.
909813/0082 " 4 "909813/0082 " 4 "
Fe 1306 Sa - zf 5.9.77Fe 1306 Sa - zf 5.9.77
-A--A-
Diese bekannte Einrichtung besitzt den Nachteil, daß eine zusätzliche Pumpe zur Beaufschlagung der Reibungskupplung des Ausgleichgetriebes benötigt wird und das benötigte Steuerventil eine nur in begrenzten Stückzahlen anfallende Sonderfertigung darstellt, die entsprechend teuer ist.This known device has the disadvantage that a additional pump is required to act on the friction clutch of the differential gear and the required control valve is a special production that is only available in limited numbers and is correspondingly expensive.
Aufgabe der Erfindung ist es eine Einrichtung der eingangs beschriebenen Art zu schaffen, die aus relativ billigen, in großen Stückzahlen hergestellten Bauteilen hergestellt werden kann.The object of the invention is to provide a device of the type described above, which consists of relatively cheap, in large numbers of manufactured components can be produced.
Diese Aufgabe wird durch den kennzeichnenden Teil des Hauptanspruches gelöst. Durch die Erfindung ist es möglich Schlepper auch nachträglich ohne aufwendige Umbauarbeiten mit einem sperrbaren Ausgleichgetriebe auszurüsten.This task becomes through the characterizing part of the main claim solved. With the invention, it is possible to retrospectively use a tractor without extensive conversion work Equip lockable differential gear.
Weitere Einzelheiten und Merkmale der Erfindung gehen aus den übrigen Ansprüchen sowie der Beschreibung anhand einer Zeichnung hervor.Further details and features of the invention emerge from the remaining claims and the description based on a Drawing.
Es zeigen:Show it:
Fig. 1 ein Bremspedal eines Schleppers,1 shows a brake pedal of a tractor,
Fig. 2 die Steuereinrichtung für die Ausgleichgetriebesperre undFig. 2 the control device for the differential lock and
Fig. 3 die Steuereinrichtung gemäß Fig. 2 in einer Seitenansicht. 3 shows the control device according to FIG. 2 in a side view.
Für die folgende Beschreibung der Erfindung wird davon ausgegangen, daß der Aufbau und die Wirkungsweise sowohl des Ausgleichgetriebes als auch dessen Sperrvorrichtung bekannt sind. In den Fig. 1 und 2 ist von dieser Sperrvorrichtung.For the following description of the invention it is assumed that that the structure and operation of both the differential gear and its locking device are known are. In Figs. 1 and 2 of this locking device.
Θ09813/0082Θ09813 / 0082
Fe 1306 Sa - zf 5.9.1977Fe 1306 Sa - zf 5.9.1977
lediglich der mit einer nicht gezeigten Fußraste versehene Sperrhebel 1 gezeigt, der um die Achse 2 schwenkbar ist. In der gezeigten Stellung des Sperrhebels 1 sei das Ausgleichgetriebe gesperrt, dagegen in der strichpunktierten Stellung entsperrt. In der gesperrten Stellung des Sperrhebels 1 greift ein Riegel 3 mit seiner Nase 3a in die Bewegungsbahn des Sperrhebels 1 hinein und verhindert, daß dieser unter dem Einfluß einer nicht gezeigten Feder in die strichpunktierte Lage gemäß Fig. 2 zurückschwenkt. Der Riegel 3 ist in seinem oberen Bereich an dem Gabelkopf A der Hubstange 5 eines Hubmagneten 6 angelenkt, welcher einen ausreichend großen Hub aufweist, um den Riegel 3 gegen die Kraft der Feder 7 in die und aus der Bewegungsbahn des Sperrhebels 1 zu schwenken.only the locking lever 1, which is provided with a footrest (not shown) and can be pivoted about the axis 2, is shown. In the position of the locking lever 1 shown is the differential locked, but in the dash-dotted position unlocked. In the locked position of the locking lever 1, a bolt 3 engages with its nose 3a in the movement path of the Lock lever 1 in and prevents this under the influence of a spring, not shown, in the dash-dotted line Position according to FIG. 2 pivots back. The bolt 3 is in its upper area on the fork head A of the lifting rod 5 of a lifting magnet 6 hinged, which has a sufficiently large stroke to the bolt 3 against the force of the spring 7 in the and to pivot out of the path of movement of the locking lever 1.
Der Hubmagnet 6 wird über einen Leiter 8 mit Strom versorgt, in dem der Schließkontakt 9a eines Relais 9 liegt. Dieses Relais 9 ist mit dem parallel dazu angeordneten Bremslicht über Kontakte 11a der in bekannter Weise durch Betätigen der Bremspedale 13 gesteuerten Bremslichtschalter 11 an Spannung legbar, sobald auch der Schließkontakt 12a eines bei verriegeltem Ausgleichgetriebe durch den dann niedergetretenen Sperrhebel 1 betätigten Schalters 12 geschlossen ist. Diese Anordnung hat den Vorteil, daß das Bremslicht 10 bei jedem Betätigen der Bremspedale 13 aufleuchtet, ohne daß das Relais 9 nutzlos anzieht. Ein Anziehen des Relais 9 kann erst erfolgen, wenn vorher das Ausgleichgetriebe durch Verschwenken des Sperrhebels 1 gesperrt worden ist..The lifting magnet 6 is supplied with current via a conductor 8 in which the closing contact 9a of a relay 9 is located. This Relay 9 is connected to the brake light arranged parallel to it via contacts 11a of the in a known manner by actuation the brake pedals 13 controlled brake light switch 11 can be applied to voltage, as soon as the closing contact 12a with one locked differential gear is closed by the then depressed locking lever 1 actuated switch 12. This arrangement has the advantage that the brake light 10 lights up each time the brake pedals 13 are pressed, without this Relay 9 picks up uselessly. The relay 9 can only be tightened if the differential gear has been pivoted beforehand the locking lever 1 has been blocked ..
Damit schnell erkannt werden kann, ob das Ausgleichgetriebe gesperrt ist oder nicht, ist eine Kontrolleuchte 14 vorgesehen, deren Stromkreis durch den Öffner 14a eines bei normalA control lamp 14 is provided so that it can be recognized quickly whether the differential gear is locked or not. whose circuit through the break contact 14a one at normal
- 6 90981 3/0082- 6 90981 3/0082
274153 Ί274153 Ί
Fe 1306 Sa - zf 5.9.77Fe 1306 Sa - zf 5.9.77
arbeitenden Ausgleichgetriebe vom Sperrhebel 1 betätigten Schalters 14 geschlossen wird.working differential gear from the locking lever 1 actuated switch 14 is closed.
Die Funktionsweise der Steuereinrichtung ist wie folgt: Im gesperrten Zustand des Ausgleichgetriebes, der durch die Kontrolleuchte 14 angezeigt wird, befindet sich der Sperrhebel 1 in der in Fig. 1 gezeigten Position. Der Schließkontakt 12a ist geschlossen. Trotzdem bleibt das Relais 9 abgefallen, so daß der Hubmagnet 6 unerregt bleibt. Die Nase 3a des Riegels 3 ist unter dem Einfluß der Feder 7 in die Bewegungsbahn des Sperrhebels 1 geschwenkt und verriegelt diesen in der eingenommenen Stellung. Bei einem Betätigen zumindest eines der Bremspedale 13 wird der Kontakt 11a des zugeordneten Bremslichtschalters 11 geschlossen und das Bremslicht 10 leuchtet auf. Gleichzeitig zieht das Relais 9 an und schließt über seinen Schüeflkontakt 9a den Stromkreis des Hubmagneten 6. Dieser zieht den am Gabelkopf 4 angelenkten Riegel 3 aus der Bewegungsbahn des Sperr— hebeis 1 heraus, welcher daraufhin unter der Kraft der nichtgezeigten Feder oder dgl. in die in Fig. 2 gezeigte strichpunktierte Lage schwenkt. Bei diesem Vorgang fällt durch den sich öffnenden Schließkontakt 12a das Relais 9 wieder ab und der Stromkreis des Hubmagneten 6 wird unterbrochen. Als Folge davon schwenkt der Riegel 3 wieder in die Bewegungsbahn des Sperrhebels 1 zurück. Gleichzeitig wird der Schließerkontakt 15a durch den Sperrhebel 1 geöffnet, so daß die Kontrolleuchte 14 erlischt.The mode of operation of the control device is as follows: In the locked state of the differential gear, which is triggered by the Control lamp 14 is displayed, the locking lever is located 1 in the position shown in FIG. The make contact 12a is closed. Nevertheless, the relay 9 remains de-energized, so that the solenoid 6 remains de-energized. The nose 3a of the bolt 3 is under the influence of the spring 7 in the path of movement of the locking lever 1 is pivoted and locked in the assumed position. When at least one of the brake pedals 13 is actuated, the contact 11a of the associated brake light switch 11 is closed and the brake light 10 lights up. At the same time the relay 9 picks up and closes via its Schüeflkontakt 9a the circuit of the lifting magnet 6. This pulls the bolt 3, which is hinged to the fork head 4, out of the path of movement of the locking device. hebeis 1 out, which then under the force of the spring (not shown) or the like. In the one shown in Fig. 2 in phantom Location pivots. During this process, the relay 9 drops again due to the opening contact 12a and the circuit of the solenoid 6 is interrupted. As a result, the bolt 3 pivots back into the path of movement of the locking lever 1 back. At the same time, the normally open contact 15a is opened by the locking lever 1, so that the control lamp 14 goes out.
Soll das nunmehr wieder normal arbeitende Ausgleichgetriebe abermals gesperrt werden, so erfolgt dies durch abermaliges Verschwenken des Sperrhebels 1, wobei der Riegel 3, durch den Sperrheben vorübergehend entgegen dem Uhrzeigersinn verschwenkt, den Sperrhebel 1 arretiert. If the now back to normal working differential gear to be locked again, this is done by again rschwenken V e of the lock lever 1, wherein the catch 3 is swung by the lock temporarily lifting counterclockwise, locks the locking lever. 1
0098 13/00820098 13/0082
Claims (8)
gekennzeichnet durch eine elektrische oder elektromechanische Verbindung zwischen dem Bremspedal (13) und der Sperrvorrichtung, die beim Betätigen des Bremspedals (13) die gesperrte Sperrvorrichtung im Sinne eines Entsperrens beeinflusst.II / Control device that can be actuated by the brake pedal, in particular of a vehicle that can be used in agriculture and / or construction, to unlock the locking device of a lockable differential gear,
characterized by an electrical or electromechanical connection between the brake pedal (13) and the locking device which, when the brake pedal (13) is actuated, influences the locked locking device in the sense of unlocking.
dadurch gekennzeichnet, daß das Schaltelement ein Hubmagnet (6) ist, an dessen Hubstange (5) der Riegel (3) angelenkt ist. 3. Control device according to claim 2,
characterized in that the switching element is a lifting magnet (6), on the lifting rod (5) of which the bolt (3) is articulated.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772741531 DE2741531A1 (en) | 1977-09-15 | 1977-09-15 | CONTROL DEVICE FOR A LOCKABLE DIFFERENTIAL GEAR OF A VEHICLE, IN PARTICULAR AN AGRICULTURAL AND / OR CONSTRUCTION TRACTOR |
FR7824052A FR2403231A1 (en) | 1977-09-15 | 1978-08-17 | Differential lock for tractor - has electro magnetic servo switch mounted on brake pedal and operated by pivoting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772741531 DE2741531A1 (en) | 1977-09-15 | 1977-09-15 | CONTROL DEVICE FOR A LOCKABLE DIFFERENTIAL GEAR OF A VEHICLE, IN PARTICULAR AN AGRICULTURAL AND / OR CONSTRUCTION TRACTOR |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2741531A1 true DE2741531A1 (en) | 1979-03-29 |
Family
ID=6019013
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19772741531 Withdrawn DE2741531A1 (en) | 1977-09-15 | 1977-09-15 | CONTROL DEVICE FOR A LOCKABLE DIFFERENTIAL GEAR OF A VEHICLE, IN PARTICULAR AN AGRICULTURAL AND / OR CONSTRUCTION TRACTOR |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2741531A1 (en) |
FR (1) | FR2403231A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3317247A1 (en) * | 1983-05-11 | 1984-11-15 | Volkswagenwerk Ag, 3180 Wolfsburg | MOTOR VEHICLE WITH 4WD DRIVE |
EP0149742A1 (en) * | 1983-11-25 | 1985-07-31 | Robert Bosch Gmbh | Vehicle with differential locking means |
CN114103913A (en) * | 2021-10-20 | 2022-03-01 | 陕西汽车集团股份有限公司 | Commercial vehicle braking safety monitoring system and method |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2067685B (en) * | 1980-01-23 | 1984-02-15 | Rockwell International Corp | Vehicle drive control system |
DE3418520A1 (en) * | 1984-05-18 | 1985-11-21 | Teves Gmbh Alfred | SLIP-CONTROLLED BRAKE SYSTEM FOR ROAD VEHICLES WITH ALL-WHEEL DRIVE |
DE3533745A1 (en) * | 1985-09-21 | 1987-04-02 | Opel Adam Ag | TRANSMISSION ARRANGEMENT |
-
1977
- 1977-09-15 DE DE19772741531 patent/DE2741531A1/en not_active Withdrawn
-
1978
- 1978-08-17 FR FR7824052A patent/FR2403231A1/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3317247A1 (en) * | 1983-05-11 | 1984-11-15 | Volkswagenwerk Ag, 3180 Wolfsburg | MOTOR VEHICLE WITH 4WD DRIVE |
EP0149742A1 (en) * | 1983-11-25 | 1985-07-31 | Robert Bosch Gmbh | Vehicle with differential locking means |
CN114103913A (en) * | 2021-10-20 | 2022-03-01 | 陕西汽车集团股份有限公司 | Commercial vehicle braking safety monitoring system and method |
Also Published As
Publication number | Publication date |
---|---|
FR2403231A1 (en) | 1979-04-13 |
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Legal Events
Date | Code | Title | Description |
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8139 | Disposal/non-payment of the annual fee |