公开(公告)号：US12083848B1

公开(公告)日：2024-09-10

申请号：US18197142

申请日：2023-05-15

Applicant: DRiV Automotive Inc.

Inventor： Miguel Dhaens ,  Monzer Al Sakka

IPC: B60G17/08 ,  B60G13/08 ,  F15B1/04 ,  F15B13/06

CPC classification number: B60G17/08 ,  B60G13/08 ,  F15B1/04 ,  F15B13/06 ,  B60G2202/24 ,  B60G2204/62 ,  B60G2500/104

Abstract: A single axle suspension system including right and left dampers, first and second hydraulic circuits, one or more pressurizing mechanisms with a variable volume chamber that is connected in fluid communication with the first or second hydraulic circuits, and a bi-directional pump with a first impeller that is arranged in fluid communication with the first hydraulic circuit, a second impeller that is arranged in fluid communication with the second hydraulic circuit, and a motor that is configured to drive rotation of the first and second impellers to simultaneously pump the hydraulic fluid through the first and second hydraulic circuits in opposite directions. Each pressurizing mechanism includes a driven piston that is moveable in first and second directions to increase and decrease the volume of the variable volume chamber and therefore increase and decrease static pressure within the first and/or second hydraulic circuits independent of damper movements.

公开(公告)号：US20240066940A1

公开(公告)日：2024-02-29

申请号：US17823156

申请日：2022-08-30

Applicant: DRiV Automotive Inc.

Inventor： Miguel Dhaens ,  Monzer Al Sakka ,  Emilie Florence Simone Boulay ,  Vytautas Bucinskas

IPC: B60G17/052 ,  B60G11/27 ,  B60G11/30

CPC classification number: B60G17/0528 ,  B60G11/27 ,  B60G11/30 ,  B60G2202/152

Abstract: An air-spring assembly includes a flexible bellows extending from a top end to a bottom end and enclosing an air-spring chamber between the top end and the bottom end, a first panel partially defining the air-spring chamber and movable in response to a pressure of the air-spring chamber, an enclosure partially defining a working chamber fluidly isolated from the air-spring chamber, a second panel partially defining the working chamber and movable relative to the enclosure, and a linkage member fixed relative to the first panel and to the second panel and defining a fixed distance between the first panel and the second panel. The top and bottom ends are fixable to a frame and a wheel of a vehicle, respectively. A volume of the air-spring chamber varies with movement of the bottom end relative to the top end. Movement of the second panel changes a volume of the working chamber.

公开(公告)号：US12291072B2

公开(公告)日：2025-05-06

申请号：US17823156

申请日：2022-08-30

Applicant: DRiV Automotive Inc.

Inventor： Miguel Dhaens ,  Monzer Al Sakka ,  Emilie Florence Simone Boulay ,  Vytautas Bucinskas

IPC: B60G17/052 ,  B60G11/27 ,  B60G11/30

Abstract: An air-spring assembly includes a flexible bellows extending from a top end to a bottom end and enclosing an air-spring chamber between the top end and the bottom end, a first panel partially defining the air-spring chamber and movable in response to a pressure of the air-spring chamber, an enclosure partially defining a working chamber fluidly isolated from the air-spring chamber, a second panel partially defining the working chamber and movable relative to the enclosure, and a linkage member fixed relative to the first panel and to the second panel and defining a fixed distance between the first panel and the second panel. The top and bottom ends are fixable to a frame and a wheel of a vehicle, respectively. A volume of the air-spring chamber varies with movement of the bottom end relative to the top end. Movement of the second panel changes a volume of the working chamber.

公开(公告)号：US12251978B2

公开(公告)日：2025-03-18

申请号：US18197138

申请日：2023-05-15

Applicant: DRiV Automotive Inc.

Inventor： Miguel Dhaens ,  Monzer Al Sakka

IPC: B60G21/073 ,  B60G9/02 ,  B60G13/08 ,  B60G17/08 ,  F15B21/00 ,  B60G17/015 ,  B60G17/016

Abstract: A single axle suspension system including right and left dampers, first and second hydraulic circuits, and a first pressurizing mechanism connected in fluid communication with the first and second hydraulic circuits. The first pressurizing mechanism includes a dual chamber ball/screw mechanism to adjust the volumetric capacity of a pair of first and second variable volume chambers that are arranged in fluid communication with the first and second hydraulic circuits. Thus, the first pressurizing mechanism provides roll control by generating a pressure differential between the first and second hydraulic circuits, which causes an increase in the fluid pressure inside either the first working chamber of the right damper and the second working chamber of the left damper or inside the first working chamber of the left damper and the second working chambers of the right damper to provide roll stiffness that counters vehicle roll during cornering.

公开(公告)号：US12168378B2

公开(公告)日：2024-12-17

申请号：US17499650

申请日：2021-10-12

Applicant: DRiV Automotive Inc.

Inventor： Nandish Calchand ,  Bert Vandersmissen ,  Stein Slootmaekers ,  Peter Boon ,  Monzer Al Sakka ,  Kylian Praet

IPC: B60G17/0185 ,  B60G13/14

Abstract: A system includes: a state module configured to selectively set a present state to a first state; a valve control module configured to determine first target open and closed states for valves of a suspension system based on the present state and to open and close the valves of the suspension system according to the first target open and closed states, respectively; a pump control module configured to, when the valves are in the first target open and closed states, respectively, selectively operate an electric pump of the suspension system in a first direction and increase a pressure of hydraulic fluid in a first portion of the suspension system including an accumulator, where the valve control module is configured to decrease the pressure in the first portion after the increase; and a diagnosis module configured to selectively diagnose a fault in the accumulator based on a pressure during the decrease.

公开(公告)号：US12291073B2

公开(公告)日：2025-05-06

申请号：US18197288

申请日：2023-05-15

Applicant: DRiV Automotive Inc.

Inventor： Monzer Al Sakka ,  Miguel Dhaens

IPC: B60G13/08 ,  B60G17/08

Abstract: A suspension system including four dampers is disclosed where each damper includes a compression chamber and a rebound chamber. First and second hydraulic circuits interconnect the compression and rebound chambers of the front left and back right dampers, while third and fourth hydraulic circuits interconnect the compression and rebound chambers of the front right and back left dampers. A first bi-directional pump is connected between the first and second hydraulic circuits and a second bi-directional pump is connected between the third and fourth hydraulic circuits. The first and second bi-directional pumps can either pump in the same direction or in opposite directions. The level of pitch and roll stiffness can be adjusted by running the first and second bi-directional pumps to change the pressure in select hydraulic circuits of the system.

公开(公告)号：US12179541B2

公开(公告)日：2024-12-31

申请号：US18197382

申请日：2023-05-15

Applicant: DRIV Automotive Inc.

Inventor： Monzer Al Sakka ,  Miguel Dhaens

IPC: B60G17/08 ,  B60G13/08

Abstract: A suspension system including four dampers each having a compression chamber and a rebound chamber. First and second hydraulic circuits interconnect the compression and rebound chambers of the front dampers, while third and fourth hydraulic circuits interconnect the compression and rebound chambers of the back dampers. A first longitudinal hydraulic line extends between and connects the first and third hydraulic circuits and a second longitudinal hydraulic line extends between and connects the second and fourth hydraulic circuits. A first bi-directional pump is connected in-line with a fluid distribution line that extends between and connects the first and second longitudinal hydraulic lines a can pump fluid in opposite directions through the fluid distribution line to provide active roll stiffness.

公开(公告)号：US12083851B1

公开(公告)日：2024-09-10

申请号：US18197133

申请日：2023-05-15

Applicant: DRiV Automotive Inc.

Inventor： Miguel Dhaens ,  Monzer Al Sakka

IPC: B60G17/015 ,  B60G17/08 ,  B60G21/073

CPC classification number: B60G21/073 ,  B60G17/0157 ,  B60G17/08 ,  B60G2202/24 ,  B60G2204/8304 ,  B60G2500/114 ,  B60G2800/9124

Abstract: A single axle suspension system that includes right and left dampers, first and second hydraulic circuits, a first pressurizing mechanism that is connected in fluid communication with the first hydraulic circuit, and a second pressurizing mechanism that is connected in fluid communication with the second hydraulic circuit. The first and second pressurizing mechanisms are configured to provide active roll control by adding and removing hydraulic fluid to and from the first and second hydraulic circuits to increase and decrease pressure inside the first and second hydraulic circuits independent of damper movements. This in turn causes a simultaneous increase in the fluid pressure inside either the first working chamber of the right and the second working chamber of the left damper or the first working chamber of the left damper and the second working chambers of the right damper to provide roll stiffness that counters vehicle roll during cornering.