DE4228739C2 - Fahrzeughöhensteuersystem - Google Patents
FahrzeughöhensteuersystemInfo
- Publication number
- DE4228739C2 DE4228739C2 DE4228739A DE4228739A DE4228739C2 DE 4228739 C2 DE4228739 C2 DE 4228739C2 DE 4228739 A DE4228739 A DE 4228739A DE 4228739 A DE4228739 A DE 4228739A DE 4228739 C2 DE4228739 C2 DE 4228739C2
- Authority
- DE
- Germany
- Prior art keywords
- valve
- vehicle height
- control system
- oil
- piston
- 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 - Fee Related
Links
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
- B60G17/02—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
- B60G17/056—Regulating distributors or valves for hydropneumatic systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/08—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring
- B60G15/12—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring and fluid damper
-
- 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
- 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
- B60G17/0416—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics regulated by varying the resiliency of hydropneumatic suspensions
- B60G17/0424—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics regulated by varying the resiliency of hydropneumatic suspensions by varying the air pressure of the accumulator
-
- 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
- B60G17/0416—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics regulated by varying the resiliency of hydropneumatic suspensions
- B60G17/0432—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics regulated by varying the resiliency of hydropneumatic suspensions by varying the number of accumulators connected to the hydraulic cylinder
-
- 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
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/80—Interactive suspensions; arrangement affecting more than one suspension unit
-
- 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
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/30—Height or ground clearance
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Description
Eine erste Ausführungsform des Fahrzeughöhensteuersystems nach der vorliegenden Erfindung wird im folgenden mit Bezug auf Fig. 1 beschrieben werden.
Claims (5)
ein Kolben-Zylinder-Aggregat (3a-3d) für jedes Rad, welches über eine Hauptleitung (5) und eine zugehörige, davon abzweigende Zweigleitung (6a-6d) mit einer hydraulischen Pumpe (1) oder mit einem Tankreservoir (7) verbindbar ist;
ein in jeder Zweigleitung (6a-6d) angeordnetes Steuerventil (8a-8d), welches in einer ersten Stellung die Ölzufuhr verhindert und in einer zweiten Stellung die Ölzu- und abfuhr zuläßt;
ein zwischen der Hauptleitung (5) und dem Tankreservoir (7) angeordnetes Ölentladeventil (18), welches in einer ersten Stellung die Ölabfuhr verhindert und in einer zweiten Stellung die Ölabfuhr zuläßt, mindestes zwei, in Parallelschaltung mit jedem Kolben-Zylinder-Aggregat (3a-3d) verbundene hydropneumatische Federn (10a-10d, 11a-11d)
ein zwischen den hydropneumatischen Federn (10a-10d, 11a-11d) eines jeden Kolben-Zylinder-Aggregats (3a-3d) angeordnetes Umschaltventil (14a-14d), welches in einer ersten Stellung die hydropneumatischen Federn (10a-10d, 11a-11d) des jeweiligen Kolben-Zylinder-Aggregats (3a- 3d) miteinander verbindet und in einer zweiten Stellung die hydropneumatischen Federn (10a-10d, 11a-11d) voneinander trennt;
dadurch gekennzeichnet, daß
jedes Umschaltventil (14a-14d) von einer, zwischen hydraulischer Pumpe (1) und dem zugehörigen Steuerventil (8a-8d) abzweigenden Steuerleitung (15a-15d) druckabhängig angesteuert wird, wobei die Umschaltventile (14a-14d) entweder die erste oder die zweite Stellung einnehmen, wenn die hydraulische Pumpe (1) in Betrieb und das Ölentladeventil (18) geschlossen ist, und die andere Stellung, wenn das Ölentladeventil (18) geöffnet ist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4244768A DE4244768C2 (de) | 1991-08-30 | 1992-08-28 | Hydropneumatische Feder für ein Fahrzeughöhensteuersystem |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24506991 | 1991-08-30 | ||
JP4193451A JPH05185822A (ja) | 1991-08-30 | 1992-06-26 | 車高調整システム |
Publications (2)
Publication Number | Publication Date |
---|---|
DE4228739A1 DE4228739A1 (de) | 1993-03-04 |
DE4228739C2 true DE4228739C2 (de) | 1998-03-26 |
Family
ID=26507897
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4228739A Expired - Fee Related DE4228739C2 (de) | 1991-08-30 | 1992-08-28 | Fahrzeughöhensteuersystem |
Country Status (3)
Country | Link |
---|---|
US (2) | US5288102A (de) |
JP (1) | JPH05185822A (de) |
DE (1) | DE4228739C2 (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2291018A (en) * | 1994-07-15 | 1996-01-17 | New Holland Nv | Utility vehicle suspensions |
JP3189689B2 (ja) * | 1996-06-07 | 2001-07-16 | トヨタ自動車株式会社 | アクチュエータ駆動装置とサスペンション装置 |
BR9907925A (pt) * | 1998-01-27 | 2001-12-26 | Atlas Copco Wagner Inc | Sistema de suspensão hidráulica resistente àlaminação, kit e método para veìculo de manejo decarga |
US6089551A (en) * | 1998-02-10 | 2000-07-18 | Crowe Manufacturing Services, Inc. | Height control valve with integral dump device |
US5961106A (en) * | 1998-06-08 | 1999-10-05 | Shaffer; Theodore E. | Vehicle shock absorber assembly having height adjustment |
GB2373224B (en) * | 1998-12-04 | 2003-02-19 | Land Rover Group Ltd | Vehicle suspensions |
DE19949152C2 (de) * | 1999-10-12 | 2003-07-31 | Mowag Motorwagenfabrik Ag Kreu | Hydropneumatische Federung |
DE10057746A1 (de) * | 2000-11-16 | 2002-06-06 | Hydac Technology Gmbh | Hydrospeicher |
US6669217B2 (en) | 2001-05-17 | 2003-12-30 | Hadley Products | Anti-roll suspension valve body |
DE102011121755A1 (de) * | 2011-12-21 | 2013-06-27 | Wabco Gmbh | Luftfederungsanlage eines Kraftfahrzeugs und Verfahren zu deren Steuerung |
JP6714336B2 (ja) * | 2015-09-30 | 2020-06-24 | Kyb株式会社 | サスペンション装置 |
US10214071B1 (en) * | 2016-05-28 | 2019-02-26 | PAL Suspension LLC | Vehicle suspension system with multi-stage hydraulic cylinder assemblies and external spring packs |
US10442267B2 (en) * | 2016-10-24 | 2019-10-15 | Beijingwest Industries Co., Ltd. | Vehicle suspension control system and method for eliminating manifold exhaust noise on compressor start |
US10737545B1 (en) | 2019-12-19 | 2020-08-11 | PAL Suspension LLC | Vehicle suspension system with multi-stage hydraulic cylinder assemblies and external spring packs |
KR102249799B1 (ko) * | 2019-12-26 | 2021-05-10 | 현대모비스 주식회사 | 전동식 차고 조절장치 |
US11590819B2 (en) * | 2020-06-10 | 2023-02-28 | Continental Automotive Systems, Inc. | CAirS with integrated fast down leveling valves |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1293614B (de) * | 1969-04-24 | Siepmann-Werke Kg, 4785 Belecke | Hydropneumatisches Federbein für Schwerfahrzeuge | |
JPS60102114U (ja) * | 1983-12-17 | 1985-07-12 | トキコ株式会社 | ハイドロニユ−マチツクサスペンシヨン |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1089112A (fr) * | 1952-12-08 | 1955-03-15 | Siegener Eisenbahnbedarf Ag | Suspension de véhicules |
JPS50146022A (de) * | 1974-05-10 | 1975-11-22 | ||
FR2436030A1 (fr) * | 1978-09-12 | 1980-04-11 | Leduc & Fils Rene | Perfectionnements aux dispositifs de suspension hydro-pneumatique pour vehicules |
JPS60102114A (ja) * | 1984-08-17 | 1985-06-06 | 川辺農研産業株式会社 | 深根性作物の収穫機 |
FR2569624B1 (fr) * | 1984-09-06 | 1988-11-18 | Peugeot | Suspension a flexibilite et amortissement variables |
FR2632900B1 (fr) * | 1988-06-21 | 1990-11-16 | Peugeot | Dispositif de suspension hydropneumatique et vehicule automobile equipe de ce dispositif |
FR2643024B1 (fr) * | 1989-02-13 | 1994-04-15 | Peugeot Automobiles | Suspension hydropneumatique a amortissement et raideur variables |
FR2658761B1 (fr) * | 1990-02-28 | 1992-06-19 | Peugeot | Suspension hydropneumatique a raideur et amortissement variables. |
-
1992
- 1992-06-26 JP JP4193451A patent/JPH05185822A/ja active Pending
- 1992-08-28 DE DE4228739A patent/DE4228739C2/de not_active Expired - Fee Related
- 1992-08-28 US US07/936,832 patent/US5288102A/en not_active Expired - Lifetime
-
1993
- 1993-08-25 US US08/111,474 patent/US5342080A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1293614B (de) * | 1969-04-24 | Siepmann-Werke Kg, 4785 Belecke | Hydropneumatisches Federbein für Schwerfahrzeuge | |
JPS60102114U (ja) * | 1983-12-17 | 1985-07-12 | トキコ株式会社 | ハイドロニユ−マチツクサスペンシヨン |
Also Published As
Publication number | Publication date |
---|---|
US5342080A (en) | 1994-08-30 |
DE4228739A1 (de) | 1993-03-04 |
JPH05185822A (ja) | 1993-07-27 |
US5288102A (en) | 1994-02-22 |
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Legal Events
Date | Code | Title | Description |
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OP8 | Request for examination as to paragraph 44 patent law | ||
8172 | Supplementary division/partition in: |
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Q171 | Divided out to: |
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8125 | Change of the main classification |
Ipc: B60G 17/04 |
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D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
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8327 | Change in the person/name/address of the patent owner |
Owner name: HITACHI, LTD., TOKIO/TOKYO, JP |
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8339 | Ceased/non-payment of the annual fee |