公开(公告)号：US20240383304A1

公开(公告)日：2024-11-21

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：US20240383303A1

公开(公告)日：2024-11-21

申请号：US18197288

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 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：US20240383307A1

公开(公告)日：2024-11-21

申请号：US18324486

申请日：2023-05-26

Applicant: DRiV Automotive Inc.

Inventor： Miguel DHAENS ,  Monzer AL SAKKA

IPC: B60G21/073

Abstract: A single axle suspension system including right and left dampers, first and second hydraulic circuits, a first pressurizing mechanism connected in fluid communication with the first and second hydraulic circuits, and a second pressurizing mechanism connected in series with the first pressurizing mechanism. The first pressurizing mechanism is a gerotor pump that provides roll control by generating a pressure differential between the first and second hydraulic circuits, which increases 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. The second pressurizing mechanism adjusts static pressure within the first and second hydraulic circuits by adding and removing hydraulic fluid to and from the first and second hydraulic circuits.

公开(公告)号：US20240383306A1

公开(公告)日：2024-11-21

申请号：US18197138

申请日：2023-05-15

Applicant: DRiV Automotive Inc.

Inventor： Miguel DHAENS ,  Monzer AL SAKKA

IPC: B60G17/08 ,  B60G9/02 ,  B60G13/08 ,  F15B21/00

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：US20240383302A1

公开(公告)日：2024-11-21

申请号：US18197130

申请日：2023-05-15

Applicant: DRiV Automotive Inc.

Inventor： Miguel DHAENS ,  Monzer AL SAKKA

IPC: B60G17/08 ,  B60G9/02 ,  B60G13/08 ,  F15B21/00

Abstract: A single axle suspension system including right and left dampers, first and second hydraulic circuits, a first pressurizing mechanism connected in fluid communication with the first and second hydraulic circuits, and a second pressurizing mechanism connected in series with the first pressurizing mechanism. The first pressurizing mechanism provides roll control by generating a pressure differential between the first and second hydraulic circuits. This 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. The second pressurizing mechanism adjusts static pressure within the first and second hydraulic circuits by adding and removing hydraulic fluid to and from the first and second hydraulic circuits.

公开(公告)号：US20240383301A1

公开(公告)日：2024-11-21

申请号：US18197126

申请日：2023-05-15

Applicant: DRiV Automotive Inc.

Inventor： Miguel DHAENS ,  Monzer AL SAKKA

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

Abstract: A single axle suspension system that includes right and left dampers, first and second hydraulic circuits, and a pressurizing mechanism that is connected in fluid communication with at least one of the hydraulic circuits. The pressurizing mechanism is configured to provide active heave control by adding and removing hydraulic fluid to and from at least one of the hydraulic circuits to increase and decrease pressure inside at least one of the hydraulic circuits independent of damper movements. This in turn causes a simultaneous increase in the fluid pressure inside either the first working chambers of the right and left dampers or the second working chambers of the right and left dampers to provide pitch stiffness that counters fore and aft heave of the vehicle. The pressurizing mechanism is either a bi-directional pump or a ball/screw mechanism that actuates a variable volume chamber.

公开(公告)号：US20240383295A1

公开(公告)日：2024-11-21

申请号：US18197411

申请日：2023-05-15

Applicant: DRiV Automotive Inc.

Inventor： Monzer AL SAKKA ,  Miguel DHAENS

IPC: B60G17/015 ,  B60G13/08 ,  B60G17/016 ,  B60G17/08 ,  F15B1/26 ,  F15B13/06

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 bi-directional pump is connected in-line with a first longitudinal hydraulic line that extends between the first and third hydraulic circuits and a second bi-directional pump is connected in-line with a second longitudinal hydraulic line that extends between the second and fourth hydraulic circuits. The first and second bi-directional pumps can pump independently on one another, in the same direction at the same time, or in opposite directions at the same time. 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：US20230110337A1

公开(公告)日：2023-04-13

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.