公开(公告)号：US20170267050A1

公开(公告)日：2017-09-21

申请号：US15616081

申请日：2017-06-07

Applicant: HOERBIGER AUTOMOTIVE KOMFORTSYSTEME GmbH

Inventor： Klaus STOLLE

IPC: B60G17/056 ,  B60G15/06 ,  B60G17/027

CPC classification number: B60G17/056 ,  B60G15/063 ,  B60G17/0272 ,  B60G2202/312 ,  B60G2202/32 ,  B60G2202/415 ,  B60G2202/416 ,  B60G2204/124 ,  B60G2500/203 ,  B60G2500/32

Abstract: A hydraulic level-adjustment device has a reservoir, a reversible hydraulic unit with a hydraulic pump, and a single-acting hydraulic linear actuator. To lift a vehicle chassis, the working space of the linear actuator can be pressurized by the hydraulic pump operated in its first pumping direction via its first pump connection and a fill line with a fill-check valve arranged therein. To lower the chassis, via its second pump connection, the hydraulic pump, operated in the reverse pumping direction, pumps hydraulic fluid into the reservoir via an outflow line with a throttle unit arranged therein. The pressure present upstream of the throttle unit acts on the control connection of a lockable, drainage-check valve via a control line and opens same, so that, under the weight of the motor vehicle, hydraulic fluid is forced out of the working space of the hydraulic linear actuator into the reservoir via the drainage line.

公开(公告)号：US20180257451A1

公开(公告)日：2018-09-13

申请号：US15977044

申请日：2018-05-11

Applicant: HOERBIGER AUTOMOTIVE KOMFORTSYSTEME GMBH

Inventor： Klaus STOLLE ,  Gerhard HUBER ,  Gisela SCHLEICH ,  Jürgen OSTERRIED ,  Peter MÜLLER

IPC: B60G17/027 ,  B60G17/015 ,  B60G15/02

CPC classification number: B60G17/0272 ,  B60G15/02 ,  B60G15/06 ,  B60G17/0152 ,  B60G2202/12 ,  B60G2202/30 ,  B60G2202/32 ,  B60G2202/413 ,  B60G2500/30

Abstract: In a motor vehicle chassis, at least one wheel suspension, which comprises a spring in the form of a coil spring, has associated therewith a hydraulic height adjustment device having a cylinder-piston arrangement which acts on a base point of the coil spring. The cylinder-piston arrangement can be supplied by a decentral hydraulic aggregate which is associated with the relevant wheel and comprises a storage container for hydraulic fluid and a hydraulic pump driven by an electric motor. At least the electric motor of the hydraulic aggregate is situated within the coil spring.

公开(公告)号：US20230219392A1

公开(公告)日：2023-07-13

申请号：US17575280

申请日：2022-01-13

Applicant: HOERBIGER AUTOMOTIVE KOMFORTSYSTEME GMBH

Inventor： Klaus STOLLE ,  Martin STORZ ,  Thomas GLAS

IPC: B60G17/08 ,  B60G17/015

CPC classification number: B60G17/08 ,  B60G17/0155 ,  B60G2401/10 ,  B60G2500/206 ,  B60G2200/10

Abstract: A motor vehicle chassis is provided having a base structure that can be hydraulically adjusted in level between a raised and a lowered position. A hydraulic adjuster is assigned to one of the two foot points of the corresponding suspension spring in each of the four wheel suspensions. At least two of the adjusters can be pressurized in parallel by a common hydraulic aggregate comprising a tank and a motor-pump unit and activated by a control unit. The at least two hydraulic adjusters that can be pressurized by the common hydraulic aggregate communicate hydraulically with the accumulator chamber of a spring-piston accumulator, which has at least one piston-position transmitter linked by signal transmission to the control unit.

公开(公告)号：US20180257450A1

公开(公告)日：2018-09-13

申请号：US15977037

申请日：2018-05-11

Applicant: HOERBIGER AUTOMOTIVE KOMFORTSYSTEME GMBH

Inventor： Klaus STOLLE

IPC: B60G17/027 ,  B60G15/06

CPC classification number: B60G17/0272 ,  B60G15/06 ,  B60G15/062 ,  B60G2202/30 ,  B60G2202/312 ,  B60G2202/413 ,  B60G2202/416 ,  B60G2202/42 ,  B60G2500/30

Abstract: In a motor vehicle chassis, all four wheel suspensions each have associated therewith a hydraulic height adjustment device having a cylinder-piston arrangement which acts on a base point of the relevant spring and is supplied by a decentral hydraulic aggregate. The hydraulic height adjustment devices each comprise a complex, integrated electrohydraulic adjustment assembly comprising the allocated hydraulic aggregate and the associated cylinder-piston arrangement and having a specific adapter into which the allocated cylinder-piston arrangement is integrated in such a way that there are no exposed hydraulic lines between the allocated hydraulic pump and the associated cylinder-piston arrangement. The front wheel height adjustment devices and the rear wheel height adjustment devices differ in terms of the adapter.