公开(公告)号：US20230349397A1

公开(公告)日：2023-11-02

申请号：US18305600

申请日：2023-04-24

Applicant: Dana Motion Systems Italia S.r.l.

Inventor： Stefano FASANO ,  Daniele DODI ,  Bartoli MAURIZIO ,  Alessandro SASSI

IPC: F15B11/17 ,  F15B13/02

CPC classification number: F15B11/17 ,  F15B13/026 ,  F15B2211/20576

Abstract: The present document relates to a hydraulic system having a first hydraulic pump, a second hydraulic pump, at least one hydraulic actuator, a low-pressure tank, and a pressure controlled flow compensating valve. A high-pressure port of the first hydraulic pump and a high-pressure port of the second hydraulic pump are fluidly connected or fluidly connectable to the at least one hydraulic actuator. The high-pressure port of the second hydraulic pump is selectively fluidly connectable to the low-pressure tank via the flow compensating valve. The flow compensating valve is controllable by or based on one or more of: a hydraulic pressure provided by the first hydraulic pump, a hydraulic pressure provided by the second hydraulic pump, and a hydraulic pressure at a fluid port of the at least one hydraulic actuator.

公开(公告)号：US20220032719A1

公开(公告)日：2022-02-03

申请号：US16943404

申请日：2020-07-30

Applicant: Dana Motion Systems Italia S.R.L.

Inventor： Alessandro BENEVELLI ,  Stefano FASANO ,  Daniele DODI

IPC: B60G17/08 ,  B60G17/005 ,  B60G13/08

Abstract: Methods and systems for hydraulic vehicle suspension are provided. A hydraulic suspension system, in one example, includes a first manifold including a piston-side interface and a rod-side interface fluidically coupled to a piston chamber and a rod chamber, respectively, for each of a first hydraulic cylinder and a second hydraulic cylinder. In the system, the first manifold includes a first electrically activated valve fluidically coupled to the piston-side interfaces, a first damping device, and a second damping device, the first electrically activated valve is configured to lock and unlock vertical motion of the first and second hydraulic cylinders and, while vertical motion of the first and second hydraulic cylinders is locked, the first electrically activated valve permits fluidic communication between the first and second hydraulic cylinders to permit free roll motion in the hydraulic suspension system.

公开(公告)号：US20230219393A1

公开(公告)日：2023-07-13

申请号：US18183452

申请日：2023-03-14

Applicant: Dana Motion Systems Italia S.R.L.

Inventor： Alessandro BENEVELLI ,  Stefano FASANO ,  Daniele DODI

IPC: B60G17/08 ,  B60G13/08 ,  B60G17/005

CPC classification number: B60G17/08 ,  B60G13/08 ,  B60G17/005 ,  B60G2204/62 ,  B60G2400/252 ,  B60G2202/24 ,  B60G2400/60 ,  B60G2204/4605 ,  B60G2500/11 ,  B60G2206/41

Abstract: Methods and systems for hydraulic vehicle suspension are provided. A hydraulic suspension system, in one example, includes a first manifold including a piston-side interface and a rod-side interface fluidically coupled to a piston chamber and a rod chamber, respectively, for each of a first hydraulic cylinder and a second hydraulic cylinder. In the system, the first manifold includes a first electrically activated valve fluidically coupled to the piston-side interfaces, a first damping device, and a second damping device, the first electrically activated valve is configured to lock and unlock vertical motion of the first and second hydraulic cylinders and, while vertical motion of the first and second hydraulic cylinders is locked, the first electrically activated valve permits fluidic communication between the first and second hydraulic cylinders to permit free roll motion in the hydraulic suspension system.

公开(公告)号：US20230086720A1

公开(公告)日：2023-03-23

申请号：US18057701

申请日：2022-11-21

Applicant: Dana Motion Systems Italia S.R.L.

Inventor： Stefano FASANO ,  Daniele DODI

IPC: F16D48/02

Abstract: The present disclosure describes a hydraulic control system comprising a first pressure chamber and a second pressure chamber, each pressure chamber configured to receive a hydraulic fluid, a first movable member configured to assume a position depending on a hydraulic pressure of the hydraulic fluid in the first pressure chamber and a second movable member configured to assume a position depending on a hydraulic pressure of the hydraulic fluid in the second pressure chamber, a hydraulic command circuit configured to provide the hydraulic fluid and to control the hydraulic pressure of the hydraulic fluid in the first pressure chamber and/or the second pressure chamber, having a switchable valve in fluid communication with the first pressure chamber, wherein the switchable valve is configured to be pilotable depending on the hydraulic pressure of the hydraulic fluid in the second pressure chamber.

公开(公告)号：US20220003278A1

公开(公告)日：2022-01-06

申请号：US17364709

申请日：2021-06-30

Applicant: Dana Motion Systems Italia S.R.L.

Inventor： Stefano FASANO ,  Daniele DODI

IPC: F16D25/06 ,  F16D48/02

Abstract: The present disclosure describes a hydraulic control system comprising a first pressure chamber and a second pressure chamber, each pressure chamber configured to receive a hydraulic fluid, a first movable member configured to assume a position depending on a hydraulic pressure of the hydraulic fluid in the first pressure chamber and a second movable member configured to assume a position depending on a hydraulic pressure of the hydraulic fluid in the second pressure chamber, a hydraulic command circuit configured to provide the hydraulic fluid and to control the hydraulic pressure of the hydraulic fluid in the first pressure chamber and/or the second pressure chamber, having a switchable valve in fluid communication with the first pressure chamber, wherein the switchable valve is configured to be pilotable depending on the hydraulic pressure of the hydraulic fluid in the second pressure chamber.