DE29616825U1 - Road vehicle - Google Patents
Road vehicleInfo
- Publication number
- DE29616825U1 DE29616825U1 DE29616825U DE29616825U DE29616825U1 DE 29616825 U1 DE29616825 U1 DE 29616825U1 DE 29616825 U DE29616825 U DE 29616825U DE 29616825 U DE29616825 U DE 29616825U DE 29616825 U1 DE29616825 U1 DE 29616825U1
- Authority
- DE
- Germany
- Prior art keywords
- wheel
- road vehicle
- wheels
- vehicle according
- sensor device
- 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.)
- Expired - Lifetime
Links
- 239000000725 suspension Substances 0.000 claims description 15
- 244000309464 bull Species 0.000 claims 1
- 230000007423 decrease Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
- B60G11/27—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs wherein the fluid is a gas
-
- 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
- B60G17/0165—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 to an external condition, e.g. rough road surface, side wind
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/20—Semi-rigid axle suspensions
-
- 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
-
- 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
- B60G2202/1524—Pneumatic spring with two air springs per wheel, arranged before and after the wheel axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/011—Modular constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/60—Subframe construction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/14—Buses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/25—Stroke; Height; Displacement
- B60G2400/252—Stroke; Height; Displacement vertical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/80—Exterior conditions
- B60G2400/82—Ground surface
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2600/00—Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
- B60G2600/18—Automatic control means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Description
GR 96 G 3788GR 96 G 3788
Beschreibung
Straßenfahrzeug
Die Erfindung betrifft ein Straßenfahrzeug.Description
Road vehicle
The invention relates to a road vehicle.
Derartige Straßenfahrzeuge dienen z. B. als Busse zur Personenbeförderung. Bei Bussen ist der Wagenkasten über jeweils wenigstens einen Luftfederbalg auf einer vorgebbaren Zahl von Rädern abgestützt, wobei die vertikale Bewegung der Räder über Hydraulikstoßdämpfer gedämpft wird. Konstruktionsbedingt führen auftretende Fahrbahnunebenheiten zu einem Nachschwingen des Wagenkastens und werden somit nicht besonders gut ausgeglichen. Damit weisen Busse gegenüber Straßenbahnen einen schlechteren Fahrkomfort auf.Such road vehicles are used, for example, as buses to transport people. In buses, the car body is supported by at least one air bellows on a predefined number of wheels, with the vertical movement of the wheels being dampened by hydraulic shock absorbers. Due to the design, unevenness in the road surface leads to the car body continuing to swing and is therefore not compensated for particularly well. This means that buses are less comfortable to ride than trams.
Aufgabe der vorliegenden Erfindung ist es deshalb, ein Straßenfahrzeug der eingangs genannten Art zu schaffen, das insbesondere bei seinem Einsatz als Personentransportmittel ei-0 nen höheren Fahrkomfort aufweist.The object of the present invention is therefore to create a road vehicle of the type mentioned at the outset which has a higher driving comfort, particularly when used as a means of transporting people.
Die Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind jeweils Gegenstand von weiteren Ansprüchen.The object is achieved according to the invention by the features of claim 1. Advantageous embodiments of the invention are each the subject of further claims.
Das Straßenfahrzeug nach Anspruch 1 umfaßt einen Wagenkasten, der sich über ein Federungssystem auf eine vorgebbare Zahl von Rädern abstützt, wobei das Federungssystem zumindest einen Federbalg für jedes Rad sowie wenigstens einen Kompressor und Druckventile umfaßt. Weiterhin ist wenigstens eine Sensoreinrichtung pro Wagenseite in Vorwärtsfahrtrichtung gesehen vor dem ersten Rad angeordnet. Durch die Sensoreinrichtung ist der Abstand zwischen Wagenkastenboden und Fahrbahn meßbar. Ferner umfaßt das erfindungsgemäße Straßenfahrzeug wenigstens eine Recheneinheit, welcher der von der Sensorein-The road vehicle according to claim 1 comprises a car body which is supported by a suspension system on a predeterminable number of wheels, the suspension system comprising at least one bellows for each wheel and at least one compressor and pressure valves. Furthermore, at least one sensor device is arranged per car side in front of the first wheel as seen in the forward direction of travel. The sensor device can measure the distance between the car body floor and the roadway. Furthermore, the road vehicle according to the invention comprises at least one computing unit, which is connected to the sensor device.
GR 96 G 3788GR 96 G 3788
richtung ermittelte Abstandswert zuführbar ist. Die Recheneinheit ermittelt aus der Fahrzeuggeschwindigkeit den Zeitpunkt des Befahrens der Meßstelle durch das Rad und steuert das Volumen in jedem Federbalg proportional zur jeweils ermittelten Änderung des Abstandswertes. Bei einer Vergrößerung des Abstandes zwischen dem Wagenkastenboden und der Fahrbahn (Fahrbahnvertiefung) wird das Volumen im betreffenden Federbalg entsprechend vergrößert und bei einer Verringerung des Abstandes (Bodenwelle, Randstein) wird das Volumen im betreffenden Federbalg entsprechend verringert. Damit wird der Wagenkasten des Straßenfahrzeuges beim Befahren einer Bodenwelle nicht merklich angehoben und beim Befahren einer Fahrbahnvertiefung sackt der Wagenkasten nicht so stark ab. Die aktive Federung des erfindungsgemäßen Straßenfahrzeuges führt damit zu einem erhöhten Fahrkomfort.direction. The computing unit uses the vehicle speed to determine the time at which the wheel passes the measuring point and controls the volume in each spring bellows in proportion to the change in the distance value determined. If the distance between the car body floor and the road (road depression) increases, the volume in the relevant spring bellows is increased accordingly and if the distance decreases (bump, curb) the volume in the relevant spring bellows is reduced accordingly. This means that the car body of the road vehicle is not raised noticeably when driving over a bump and the car body does not sink as much when driving over a road depression. The active suspension of the road vehicle according to the invention therefore leads to increased driving comfort.
Die erfindungsgemäße Lösung ist insbesondere für Straßenfahrzeuge mit einem Luftfederungssystem {Anspruch 2) geeignet.The solution according to the invention is particularly suitable for road vehicles with an air suspension system {claim 2).
Das erfindungsgemäße Straßenfahrzeug umfaßt mindestens eine Sensoreinrichtung. Diese ist vorzugsweise an der Front-Stoßstange anzuordnen. Die Sensoreinrichtung umfaßt jeweils wenigstens einen Sensor für das linke Vorderrad und jeweils einen Sensor für das rechte Vorderrad. Bei besonders langen Fahrzeugen ist es vorteilhaft, für jedes Rad jeweils einen Sensor vorzusehen, der in Vorwärtsfahrtrichtung gesehen, vor dem betreffenden Rad angeordnet ist (Anspruch 4).The road vehicle according to the invention comprises at least one sensor device. This is preferably arranged on the front bumper. The sensor device comprises at least one sensor for the left front wheel and one sensor for the right front wheel. In particularly long vehicles, it is advantageous to provide a sensor for each wheel, which is arranged in front of the relevant wheel when viewed in the forward direction of travel (claim 4).
Falls der Fahrkomfort nicht nur bei Vorwärtsfahrt, sondern 0 auch bei Rückwärtsfahrt gewährleistet sein soll, kann entweder jeweils ein Sensor vor den beiden ersten und nach den beiden letzten Rädern angeordnet sein (Anspruch 5). Falls dieser Fahrkomfort auch bei langen Straßenfahrzeugen gewünscht wird, kann vor und nach jedem Rad ein Sensor angeordnet werden (Anspruch 6).If driving comfort is to be ensured not only when driving forwards but also when reversing, a sensor can be arranged in front of the first two wheels and after the last two wheels (claim 5). If this driving comfort is also desired for long road vehicles, a sensor can be arranged in front of and after each wheel (claim 6).
GR 96 G 3788GR 96 G 3788
Die Erfindung sowie weitere vorteilhafte Ausgestaltungen, die Gegenstand der weiteren Ansprüche sind, werden im folgenden anhand eines schematisch dargestellten Ausführungsbeispiels in der Zeichnung näher erläutert. Es zeigen: 5The invention and further advantageous embodiments, which are the subject of the further claims, are explained in more detail below using a schematically illustrated embodiment in the drawing. They show: 5
FIG 1 eine Seitenansicht des erfindungsgemäßenFIG 1 a side view of the inventive
Straßenfahrzeugs,road vehicle,
FIG 2 und FIG 3 eine Detaildarstellung einer Ausführungsform des Federungssystems.FIG 2 and FIG 3 show a detailed representation of an embodiment of the suspension system.
In FIG 1 ist mit 1 ein Wagenkasten bezeichnet, der sich über ein Federungssystem, das im vorliegenden Ausführungsbeispiel als Luftfederungssystem ausgebildet ist, auf insgesamt zwei Vorderrädern 3 sowie zwei Hinterrädern 4 abstützt. Das Luftfederungssystem 2 umfaßt für jedes Rad 3 bzw. 4 jeweils zwei Luftfederbälge 21 und 22 für jedes Rad 3 bzw. 4 sowie einen in der Zeichnung nicht dargestellten Kompressor (FIG 2 und 3). Weiterhin umfaßt das Luftfederungssystem eine Druckluftleitung 23, die an den Luftfederbalg 21 geführt ist und eine Druckluftleitung 24, die an den Luftfederbalg 22 geführt ist. Beide Druckluftleitungen 23 und 24 münden über eine gemeinsame Verbindungsleitung 25 in einen Kompressortank 26. In der Druckluftleitung 23 ist ein Magnetventil 27 und in der Druckluftleitung 24 ist ein Magnetventil 28 angeordnet.In FIG 1, 1 designates a car body which is supported on a total of two front wheels 3 and two rear wheels 4 via a suspension system, which in the present embodiment is designed as an air suspension system. The air suspension system 2 comprises two air bellows 21 and 22 for each wheel 3 or 4, respectively, as well as a compressor not shown in the drawing (FIGS. 2 and 3). The air suspension system also comprises a compressed air line 23 which is led to the air bellows 21 and a compressed air line 24 which is led to the air bellows 22. Both compressed air lines 23 and 24 open into a compressor tank 26 via a common connecting line 25. A solenoid valve 27 is arranged in the compressed air line 23 and a solenoid valve 28 is arranged in the compressed air line 24.
Das erfindungsgemäße Straßenfahrzeug umfaßt weiterhin eine Sensoreinrichtung 5, die im vorliegenden Ausführungsbeispiel zwei Sensoren 51 und 52 umfaßt, die z. B. nach dem Ultraschall-Prinzip arbeiten können und die im Bereich der Front-Stoßstange &bgr; mit dem Wagenkastenboden 11 verbunden sind (FIG 1 und 3). Durch die Sensoreinrichtung 5 ist der Abstand zwischen Wagenkasten 1 und Fahrbahn 7 meßbar. Die von der Sensoreinrichtung 5 ermittelten Abstandswerte sind einer Recheneinheit 8 zuführbar (FIG 2). Die Recheneinheit 8 ermittelt aus der Fahrzeuggeschwindigkeit den Zeitpunkt des BefahrensThe road vehicle according to the invention further comprises a sensor device 5, which in the present embodiment comprises two sensors 51 and 52, which can operate, for example, according to the ultrasound principle and which are connected to the body floor 11 in the area of the front bumper β (FIGS. 1 and 3). The distance between the body 1 and the roadway 7 can be measured by the sensor device 5. The distance values determined by the sensor device 5 can be fed to a computing unit 8 (FIG. 2). The computing unit 8 determines the time of driving on the roadway from the vehicle speed.
GR 96 G 3788 GR 96 G 3788
der Meßstelle durch das Vorderrad 3 und durch das Hinterrad 4. Entsprechend der von der Sensoreinrichtung 5 ermittelten Änderung des Abstandes zwischen dem Wagenkastenbode 11 und der Fahrbahn 7 ist das Volumen in jedem Luftfederbalg 21 und 22 der Vorderräder 3 und der Hinterräder 4 steuerbar. Bei einer Vergrößerung des Abstandes (Fahrbahnvertiefung) wird das Volumen im betreffenden Luftfederbalg 21 bzw. 22 entsprechend vergrößert und bei einer Verringerung des Abstandes (Bodenwelle, Randstein) wird das Volumen im betreffenden Federbalg 21 bzw. 22 entsprechend verringert. Damit wird der Wagenkasten 1 des erfindungsgemäßen Straßenfahrzeuges beim Befahren einer Bodenwelle nicht merklich angehoben und beim Befahren einer Fahrbahnvertiefung sackt der Wagenkasten 1 nicht so stark ab. Gegenüber den bisher bekannten Straßenfahrzeugen ergibt sich dadurch ein erhöhter Fahrkomfort.the measuring point through the front wheel 3 and through the rear wheel 4. The volume in each air spring bellows 21 and 22 of the front wheels 3 and the rear wheels 4 can be controlled according to the change in the distance between the car body floor 11 and the road surface 7 determined by the sensor device 5. If the distance increases (road surface depression), the volume in the relevant air spring bellows 21 or 22 is increased accordingly, and if the distance decreases (bump, curb), the volume in the relevant bellows 21 or 22 is reduced accordingly. As a result, the car body 1 of the road vehicle according to the invention is not noticeably raised when driving over a bump, and the car body 1 does not sink as much when driving over a road surface depression. This results in increased driving comfort compared to previously known road vehicles.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29616825U DE29616825U1 (en) | 1996-09-26 | 1996-09-26 | Road vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29616825U DE29616825U1 (en) | 1996-09-26 | 1996-09-26 | Road vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
DE29616825U1 true DE29616825U1 (en) | 1997-02-20 |
Family
ID=8029805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE29616825U Expired - Lifetime DE29616825U1 (en) | 1996-09-26 | 1996-09-26 | Road vehicle |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE29616825U1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0157181A1 (en) * | 1984-02-29 | 1985-10-09 | Nissan Motor Co., Ltd. | Vehicular suspension control system with variable damping characteristics depending upon road condition and vehicle speed |
DE4119494A1 (en) * | 1990-06-19 | 1992-01-09 | Mitsubishi Motors Corp | Vehicle suspension regulation system - adjusts spring characteristic in dependence on detected road surface unevenness |
DE4329161A1 (en) * | 1992-08-31 | 1994-03-03 | Fuji Heavy Ind Ltd | Suspension control system for a vehicle |
-
1996
- 1996-09-26 DE DE29616825U patent/DE29616825U1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0157181A1 (en) * | 1984-02-29 | 1985-10-09 | Nissan Motor Co., Ltd. | Vehicular suspension control system with variable damping characteristics depending upon road condition and vehicle speed |
DE4119494A1 (en) * | 1990-06-19 | 1992-01-09 | Mitsubishi Motors Corp | Vehicle suspension regulation system - adjusts spring characteristic in dependence on detected road surface unevenness |
DE4329161A1 (en) * | 1992-08-31 | 1994-03-03 | Fuji Heavy Ind Ltd | Suspension control system for a vehicle |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 19970403 |
|
R163 | Identified publications notified |
Effective date: 19970127 |
|
R156 | Lapse of ip right after 3 years |
Effective date: 20000701 |