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DE3645148A1 - Level control for vehicle hydropneumatic suspension - Google Patents

Level control for vehicle hydropneumatic suspension

Info

Publication number
DE3645148A1
DE3645148A1 DE19863645148 DE3645148A DE3645148A1 DE 3645148 A1 DE3645148 A1 DE 3645148A1 DE 19863645148 DE19863645148 DE 19863645148 DE 3645148 A DE3645148 A DE 3645148A DE 3645148 A1 DE3645148 A1 DE 3645148A1
Authority
DE
Germany
Prior art keywords
level
level control
electromagnetic drive
hydropneumatic suspension
valves
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.)
Granted
Application number
DE19863645148
Other languages
German (de)
Other versions
DE3645148C2 (en
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 filed Critical
Priority to DE19863645148 priority Critical patent/DE3645148A1/en
Publication of DE3645148A1 publication Critical patent/DE3645148A1/en
Application granted granted Critical
Publication of DE3645148C2 publication Critical patent/DE3645148C2/de
Granted legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The system controls the level of a vehicle part carried by a hydropneumatic spring using valves located in the inlet and outlet lines of hydraulic cylinders. Each valve (5,7) has an electromagnetic drive as operating device. Level sensors (13) are mecahnical transducers producing electrical signals describing position deviations. Between each level sensor and the electromagnetic drive it serves is an electronic signal processing stage (16). Each hydraulic cylinder (1) has at least two valves. The level sensors may be proximity switches and each has a delay circuit assigned to it in the processing stages. The delay is 5-7 seconds.
DE19863645148 1986-06-12 1986-06-12 Level control for vehicle hydropneumatic suspension Granted DE3645148A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863645148 DE3645148A1 (en) 1986-06-12 1986-06-12 Level control for vehicle hydropneumatic suspension

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863645148 DE3645148A1 (en) 1986-06-12 1986-06-12 Level control for vehicle hydropneumatic suspension

Publications (2)

Publication Number Publication Date
DE3645148A1 true DE3645148A1 (en) 1989-11-30
DE3645148C2 DE3645148C2 (en) 1990-06-13

Family

ID=6317466

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863645148 Granted DE3645148A1 (en) 1986-06-12 1986-06-12 Level control for vehicle hydropneumatic suspension

Country Status (1)

Country Link
DE (1) DE3645148A1 (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2844413A1 (en) * 1978-10-12 1980-04-30 Daimler Benz Ag Attitude control for car suspension - incorporates displacement monitors on dampers and inertial sensors linked to central control
US4266790A (en) * 1978-04-20 1981-05-12 Tokico Ltd. Vehicle height adjusting apparatus
DE3101247A1 (en) * 1980-01-17 1982-01-28 Honda Giken Kogyo K.K., Tokyo CIRCUIT ARRANGEMENT FOR CONTROLLING THE HEIGHT ADJUSTMENT OF VEHICLES
DE3145148A1 (en) * 1980-11-13 1982-06-09 Honda Giken Kogyo K.K., Tokyo CIRCUIT ARRANGEMENT FOR A VEHICLE HEIGHT ADJUSTMENT SYSTEM
DE3300662A1 (en) * 1983-01-11 1984-07-12 Mannesmann Rexroth GmbH, 8770 Lohr Level control device for vehicles
DE3427843A1 (en) * 1983-07-29 1985-02-14 Tokico Ltd., Kawasaki, Kanagawa HYDRO-PNEUMATIC SUSPENSION DEVICE
DE3428397A1 (en) * 1983-08-19 1985-03-07 Mitsubishi Jidosha Kogyo K.K., Tokio/Tokyo ELECTRONICALLY CONTROLLED SUSPENSION SYSTEM
DE3439309A1 (en) * 1983-10-27 1985-05-23 Nippondenso Co., Ltd., Kariya, Aichi SYSTEM FOR CONTROLLING THE VEHICLE LEVEL
DE3512232A1 (en) * 1985-02-07 1986-08-14 Liebherr-Werk Ehingen Gmbh, 7930 Ehingen Hydropneumatic axle suspension for vehicles, preferably for motorised and mobile cranes

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4266790A (en) * 1978-04-20 1981-05-12 Tokico Ltd. Vehicle height adjusting apparatus
DE2844413A1 (en) * 1978-10-12 1980-04-30 Daimler Benz Ag Attitude control for car suspension - incorporates displacement monitors on dampers and inertial sensors linked to central control
DE3101247A1 (en) * 1980-01-17 1982-01-28 Honda Giken Kogyo K.K., Tokyo CIRCUIT ARRANGEMENT FOR CONTROLLING THE HEIGHT ADJUSTMENT OF VEHICLES
DE3145148A1 (en) * 1980-11-13 1982-06-09 Honda Giken Kogyo K.K., Tokyo CIRCUIT ARRANGEMENT FOR A VEHICLE HEIGHT ADJUSTMENT SYSTEM
DE3300662A1 (en) * 1983-01-11 1984-07-12 Mannesmann Rexroth GmbH, 8770 Lohr Level control device for vehicles
DE3427843A1 (en) * 1983-07-29 1985-02-14 Tokico Ltd., Kawasaki, Kanagawa HYDRO-PNEUMATIC SUSPENSION DEVICE
DE3428397A1 (en) * 1983-08-19 1985-03-07 Mitsubishi Jidosha Kogyo K.K., Tokio/Tokyo ELECTRONICALLY CONTROLLED SUSPENSION SYSTEM
DE3439309A1 (en) * 1983-10-27 1985-05-23 Nippondenso Co., Ltd., Kariya, Aichi SYSTEM FOR CONTROLLING THE VEHICLE LEVEL
DE3512232A1 (en) * 1985-02-07 1986-08-14 Liebherr-Werk Ehingen Gmbh, 7930 Ehingen Hydropneumatic axle suspension for vehicles, preferably for motorised and mobile cranes

Also Published As

Publication number Publication date
DE3645148C2 (en) 1990-06-13

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