DE102015008622B3 - Device and method for adjusting the level of a vehicle - Google Patents
Device and method for adjusting the level of a vehicle Download PDFInfo
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- DE102015008622B3 DE102015008622B3 DE102015008622.7A DE102015008622A DE102015008622B3 DE 102015008622 B3 DE102015008622 B3 DE 102015008622B3 DE 102015008622 A DE102015008622 A DE 102015008622A DE 102015008622 B3 DE102015008622 B3 DE 102015008622B3
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- vehicle
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- rear wheels
- vertical suspension
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/017—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their use when the vehicle is stationary, e.g. during loading, engine start-up or switch-off
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/0152—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit
- B60G17/0155—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit pneumatic unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/016—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
- B60G17/0164—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input mainly during accelerating or braking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
- B60G17/052—Pneumatic spring characteristics
- B60G17/0523—Regulating distributors or valves for pneumatic springs
- B60G17/0525—Height adjusting or levelling valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/15—Fluid spring
- B60G2202/152—Pneumatic spring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/15—Fluid spring
- B60G2202/154—Fluid spring with an accumulator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/20—Spring action or springs
- B60G2500/201—Air spring system type
- B60G2500/2014—Closed systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/20—Spring action or springs
- B60G2500/204—Pressure regulating valves for air-springs
- B60G2500/2041—Pressure regulating valves for air-springs for variable volume air springs, e.g. using accumulators as expansion chambers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/20—Spring action or springs
- B60G2500/204—Pressure regulating valves for air-springs
- B60G2500/2046—Pressure equalising valves between two units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/30—Height or ground clearance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/20—Stationary vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/22—Braking, stopping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/22—Conjoint control of vehicle sub-units of different type or different function including control of suspension systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/18—Braking system
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Die Erfindung betrifft eine Einrichtung und ein Verfahren zur Niveauverstellung eines Fahrzeugs, dessen Vorder- und Hinterräder über Radaufhängungen an einer Karosserie aufgehängt sind und das eine Bremse aufweist, die bei einem Bremseneingriff die Drehung die Räder des Fahrzeugs abbremst oder blockiert, die dadurch gekennzeichnet ist, dass die Radaufhängungen wenigstens der Hinterräder jeweils in ihrer Lage arretierbare Vertikalfederungseinrichtungen (2, 22) umfassen, und dass die Vertikalfederungseinrichtungen (2, 22) konfiguriert sind, um bei Bremseneingriff und gleichzeitigem Antrieb des Rades (14) einen Hub des Fahrzeugs zu bewirken und dann arretiert zu werden, um eine Hubfunktion umzusetzen. Das Verfahren umfasst die Schritte, dass die Bremse des Fahrzeugs in Bremseneingriff gebracht wird, dass bei Bremseingriff das Fahrzeug in angetrieben wird, wobei sich das Fahrzeug an seinen Hinterrädern aufzieht, dass die Vertikalfederungseinrichtungen (2, 22) nachgestellt und dann arretiert wird, wonach die Bremse gelöst wird.The invention relates to a device and a method for level adjustment of a vehicle, the front and rear wheels are suspended via suspensions on a body and having a brake which brakes or blocks the rotation of the wheels of the vehicle during a braking engagement, which is characterized in that the wheel suspensions of at least the rear wheels each comprise position-lockable vertical suspension devices (2, 22), and in that the vertical suspension devices (2, 22) are configured to cause a stroke of the vehicle during braking engagement and simultaneous drive of the wheel (14) and then to be locked to implement a lifting function. The method comprises the steps of bringing the brake of the vehicle into braking engagement, that the vehicle is driven in at braking engagement, the vehicle is raised at its rear wheels, the vertical suspension devices (2, 22) is adjusted and then locked, after which Brake is released.
Description
Die Erfindung betrifft eine Einrichtung zur Niveauverstellung bei einem Fahrzeug gemäß dem Oberbegriff des Patentanspruch 1 und ein Verfahren zur Niveauverstellung bei einem Fahrzeug gemäß dem Oberbegriff des Patentanspruches 4.The invention relates to a device for level adjustment in a vehicle according to the preamble of patent claim 1 and a method for level adjustment in a vehicle according to the preamble of
Die herkömmlichen Einrichtungen zur Niveauverstellung benötigen einen eigenen Antrieb, in der Regel als Elektromotor ausgeführt. Dieser Motor bedient entweder eine Pumpe, beispielweise einen Luftkompressor oder eine Hydraulikpumpe, oder verstellt mittels eines Getriebes mechanisch einen Federfußpunkt. Die Einrichtung nach der
Es ist Aufgabe der Erfindung, eine Einrichtung und ein Verfahren zur Niveauverstellung bei einem Fahrzeug gemäß der im Oberbegriff der Patentansprüche 1 und 4 angegeben Art derart weiterbilden, dass die Niveauverstellung bei stehendem Fahrzeug durchgeführt werden kann, ohne dass ein zusätzlicher Motor erforderlich wäre.It is an object of the invention to provide a device and a method for level adjustment in a vehicle according to the type specified in the preamble of
Diese Aufgabe wird für die Einrichtung gelöst durch die Merkmale des Patentanspruch 1 und für das Verfahren durch die Merkmale des Patentanspruches 4.This object is achieved for the device by the features of claim 1 and for the method by the features of claim. 4
Die erfindungsgemäße Einrichtung zeichnet sich dadurch aus, dass die Vertikalfederungseinrichtung als eine geschlossene Fluid-Federeinrichtung ohne Verbindung zur Außenluft ausgeführt ist und die Fluid-Federeinrichtung eine Fluid-Feder, einen Druckspeicher und ein dazwischen angeordnetes Fluid-Schaltventil aufweist. Die erfindungsgemäße Einrichtung kommt somit mit einem Minimum an zusätzlichem Bauaufwand aus, da derartige geschlossene Luftfedersysteme in vielen. Fahrzeugmodellen bereits vorhanden sind und der ansonsten erforderliche Fluid-Kompressor entfallen kann. Weiterhin ist vorteilhaft, dass die Betriebsbremse des Fahrzeugs an der Vorderachse und/oder der Hinterachse genutzt werden kann, sodass auch hier kein zusätzlicher Bauaufwand erforderlich ist.The inventive device is characterized in that the vertical suspension device is designed as a closed fluid spring device without connection to the outside air and the fluid spring means comprises a fluid spring, a pressure accumulator, and a fluid switching valve disposed therebetween. The inventive device thus comes with a minimum of additional construction costs, since such closed air spring systems in many. Vehicle models already exist and the otherwise required fluid compressor can be omitted. It is also advantageous that the service brake of the vehicle can be used on the front axle and / or the rear axle, so that no additional construction costs are required here.
Nach einer weiteren vorteilhaften Ausführungsform ist die erfindungsgemäße Einrichtung dadurch gekennzeichnet, dass die Fluid-Federeinrichtung eine pneumatische Federeinrichtung ist, wobei in vorteilhafter Weise die gewöhnlich mit Flüssigkeitssystemen verbundenen Probleme vermieden werden.According to a further advantageous embodiment, the device according to the invention is characterized in that the fluid spring device is a pneumatic spring device, advantageously avoiding the problems usually associated with fluid systems.
Das erfindungsgemäße Verfahren ist dadurch gekennzeichnet, dass wenn nur die Radaufhängungen der Hinterräder mit Niveauverstellungseinrichtungen versehen sind, die Bremse des Fahrzeugs in Bremseneingriff gebracht wird, dass bei Bremseneingriff das Fahrzeug in Rückwärtsrichtung angetrieben wird, wobei sich das Fahrzeug an seinen Hinterrädern aufzieht, dass das Fluid-Schaltventil geöffnet wird, so dass der Druck in der Fluid-Feder und in dem Druckspeicher ausgeglichen wird, wonach das Fluid-Schaltventil geschlossen wird, und dass die Bremse gelöst wird, und dass wenn die Radaufhängungen der Vorderräder und der Hinterräder mit Niveauverstellungseinrichtungen versehen sind, des weiteren die Bremse des Fahrzeugs in Bremseneingriff gebracht wird, dass das Fahrzeug in Vorwärtsrichtung angetrieben wird, wobei sich das Fahrzeug an seinen Vorderrädern aufzieht, dass das Fluid-Schaltventil geöffnet wird, so dass der Druck in der Fluid-Feder und in dem Druckspeicher ausgeglichen wird, wonach das Fluid-Ventil geschlossen wird, und dass die Bremse gelöst wird.The method according to the invention is characterized in that, when only the wheel suspensions of the rear wheels are provided with leveling means, the brake of the vehicle is brought into braking engagement, that under braking engagement the vehicle is driven in the reverse direction, the vehicle rearing up on its rear wheels Is opened, so that the pressure in the fluid spring and in the pressure accumulator is compensated, after which the fluid switching valve is closed, and that the brake is released, and that when the suspensions of the front wheels and the rear wheels are provided with level adjustment in addition, the brake of the vehicle is brought into braking engagement, that the vehicle is driven in the forward direction, wherein the vehicle rears on its front wheels, that the fluid switching valve is opened, so that the pressure in the fluid spring and in the pressure accumulator we compensate d, after which the fluid valve is closed, and that the brake is released.
Nach einer vorteilhaften Ausführungsform ist das erfindungsgemäße Verfahren dadurch gekennzeichnet, dass eine elektronische Parkbremse oder eine Betriebsbremse mit Hydroaggregat als Bremse an den Rädern, an denen auch die Verstelleinrichtung vorgesehen ist, eingesetzt wird. Dadurch wird in vorteilhafter Weise eine von den Umgebungsbedingungen unabhängige Verstellfunktion gewährleistet.According to an advantageous embodiment, the method according to the invention is characterized in that an electronic parking brake or a service brake with a hydraulic unit is used as a brake on the wheels, on which the adjusting device is also provided. As a result, an independent of the ambient conditions adjustment function is ensured in an advantageous manner.
Weitere Vorteile und Anwendungsmöglichkeiten der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung in Verbindung mit den in den Zeichnungen dargestellten Ausführungsbeispielen.Further advantages and possible applications of the present invention will become apparent from the following description in conjunction with the embodiments illustrated in the drawings.
In der Beschreibung, in den Ansprüchen und in der Zeichnung werden die in der unten aufgeführten Liste der Bezugszeichen verwendeten Begriffe und zugeordneten Bezugszeichen verwendet. In der Zeichnung bedeutet:In the description, the claims, and the drawing, the terms and associated reference numerals used in the list of reference numerals below are used. In the drawing:
Die Vertikalfederungseinrichtung
Mit der Vertikalfederungseinrichtung
Wenn nur die Radaufhängung der Hinterräder mit den Niveauverstellungseinrichtungen versehen sind, wird eine Bremse des Fahrzeugs in Bremseneingriff gebracht, bei Bremseneingriff wird das Fahrzeug in Rückwärtsrichtung angetrieben, wobei sich das Fahrzeug an seinen Hinterrädern aufzieht, das Fluid-Schaltventil
Wenn die Radaufhängungen der Vorderräder und der Hinterräder mit Niveauverstellungseinrichtungen versehen sind, wird des weiteren die Bremse des Fahrzeugs in Bremseneingriff gebracht, das Fahrzeug wird in Vorwärtsrichtung angetrieben, wobei sich das Fahrzeug an seinen Vorderrädern aufzieht, das Fluid-Schaltventil
Als Bremse an den Rädern
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102015008622.7A DE102015008622B3 (en) | 2015-07-02 | 2015-07-02 | Device and method for adjusting the level of a vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102015008622.7A DE102015008622B3 (en) | 2015-07-02 | 2015-07-02 | Device and method for adjusting the level of a vehicle |
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DE102015008622B3 true DE102015008622B3 (en) | 2016-11-03 |
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DE102015008622.7A Active DE102015008622B3 (en) | 2015-07-02 | 2015-07-02 | Device and method for adjusting the level of a vehicle |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019206553A1 (en) | 2018-04-27 | 2019-10-31 | Bayerische Motoren Werke Aktiengesellschaft | Vehicle wheel suspension having a suspension spring and having an additional spring element connectable in series with said suspension spring |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10256895A1 (en) * | 2001-12-13 | 2003-06-18 | Volkswagen Ag | Level control device for motor vehicle enables set desired level position to be fixed and threshold speed to be assigned to fixed level and then not exceeded |
DE102004017986A1 (en) * | 2004-04-14 | 2005-11-03 | Daimlerchrysler Ag | Computer aided change of ground clearance for easier entering of vehicle, using speed and selected gear as parameters |
DE102013211660A1 (en) * | 2013-06-20 | 2014-12-24 | Bayerische Motoren Werke Aktiengesellschaft | Method and device for height adjustment of the construction of a motor vehicle |
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2015
- 2015-07-02 DE DE102015008622.7A patent/DE102015008622B3/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10256895A1 (en) * | 2001-12-13 | 2003-06-18 | Volkswagen Ag | Level control device for motor vehicle enables set desired level position to be fixed and threshold speed to be assigned to fixed level and then not exceeded |
DE102004017986A1 (en) * | 2004-04-14 | 2005-11-03 | Daimlerchrysler Ag | Computer aided change of ground clearance for easier entering of vehicle, using speed and selected gear as parameters |
DE102013211660A1 (en) * | 2013-06-20 | 2014-12-24 | Bayerische Motoren Werke Aktiengesellschaft | Method and device for height adjustment of the construction of a motor vehicle |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019206553A1 (en) | 2018-04-27 | 2019-10-31 | Bayerische Motoren Werke Aktiengesellschaft | Vehicle wheel suspension having a suspension spring and having an additional spring element connectable in series with said suspension spring |
US11465459B2 (en) | 2018-04-27 | 2022-10-11 | Bayerische Motoren Werke Aktiengesellschaft | Vehicle wheel suspension having a suspension spring and having an additional spring element connectable in series with said suspension spring |
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