公开(公告)号：US11912092B2

公开(公告)日：2024-02-27

申请号：US17499620

申请日：2021-10-12

Applicant: DRiV Automotive Inc.

Inventor： Bert Vandersmissen ,  Stein Slootmaekers ,  Peter Boon

IPC: B60G17/0185 ,  B60G17/015

CPC classification number: B60G17/0185 ,  B60G17/0152 ,  B60G2202/414 ,  B60G2202/416 ,  B60G2400/51 ,  B60G2600/08

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 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 in a first direction to increase hydraulic fluid pressure in a first portion of the suspension system; and a leak module configured to selectively diagnose a leak in a first one of the valves associated with the first state based on a first pressure in the first portion of the suspension system while the valves are open and closed according to the first target open and closed states.

公开(公告)号：US12269311B2

公开(公告)日：2025-04-08

申请号：US18302318

申请日：2023-04-18

Applicant: DRiV Automotive Inc.

Inventor： Peter Boon ,  Tom Daniels ,  Paolo Diomedi

IPC: B60G17/08 ,  B60G13/08 ,  B60G21/06

Abstract: A suspension system including hydraulic circuits that extend between dampers located at opposite corners of the vehicle and at least one load distribution unit that is connected in fluid communication with at least two hydraulic circuits. The load distribution unit includes a manifold block with a cylinder bore, a pair of pressure tubes, a piston rod assembly, and a pair of reserve tubes. The pressure tubes are partially received in the cylinder bore to define a pair of opposed cylinders. The piston rod assembly includes a piston rod and a pair of opposed pistons that are slidingly received within the opposed cylinders. The reserve tubes are at least partially received in the cylinder bore and are arranged annularly about the pressure tubes to define a first pair of reservoir chambers between the pressure tubes and the reserve tubes.

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：US11938772B2

公开(公告)日：2024-03-26

申请号：US17499556

申请日：2021-10-12

Applicant: DRIV Automotive Inc.

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

IPC: B60G17/015 ,  B60G17/019

CPC classification number: B60G17/0152 ,  B60G17/019 ,  B60G2202/416 ,  B60G2400/5182 ,  B60G2500/10

Abstract: A system for grading filling of a suspension system includes: a pump control module configured to, during first and second periods, operate an electric pump of the suspension system in first and second directions and decreasing and increasing hydraulic fluid pressure within the suspension system, respectively; a monitoring module configured to: store a first pressure of hydraulic fluid within the suspension system measured using a pressure sensor when the first pressure is less than or equal a first predetermined pressure while the pump is operated in the first direction; and store a second pressure measured using the pressure sensor when the second pressure is greater than or equal a second predetermined pressure while the pump is operated in the second direction; and a grade module configured to determine a grade value for the filling of the suspension system based on the first and second pressures.

公开(公告)号：US12097739B2

公开(公告)日：2024-09-24

申请号：US17499507

申请日：2021-10-12

Applicant: DRiV Automotive Inc.

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

IPC: B60G17/056 ,  B60G17/044 ,  B60G17/048 ,  B60G17/08 ,  B60G21/06 ,  B60G21/067 ,  B60G21/073 ,  F04B49/03 ,  F04B49/06

CPC classification number: B60G17/056 ,  B60G17/044 ,  B60G17/048 ,  B60G17/08 ,  B60G21/06 ,  B60G21/067 ,  B60G21/073 ,  F04B49/03 ,  F04B49/06 ,  B60G2202/15 ,  B60G2202/413 ,  B60G2202/416 ,  B60G2204/81 ,  B60G2204/8102 ,  B60G2204/82 ,  B60G2204/8304 ,  B60G2400/252 ,  F04B2203/0201

Abstract: A rinsing system includes: a pump control module configured to, when a hydraulic line is connected to a port that is fluidly connected to a hydraulic line of a suspension system, selectively operate a hydraulic fluid pump of the suspension system and pump hydraulic fluid from a hydraulic fluid tank of the suspension system through the hydraulic fluid pump toward the hydraulic line; and a valve control module configured to, when the hydraulic line is connected to the port and the hydraulic fluid pump is pumping hydraulic fluid, open valves of the suspension system and fluidly connect the hydraulic fluid pump with the hydraulic line.

公开(公告)号：US11919355B2

公开(公告)日：2024-03-05

申请号：US17499581

申请日：2021-10-12

Applicant: DRiV Automotive Inc.

Inventor： Nandish Calchand ,  Stein Slootmaekers ,  Peter Boon

IPC: B60G21/073 ,  B60G17/00 ,  B60G17/015 ,  B60G17/0185 ,  B60G17/019 ,  G01M3/28 ,  G01M17/04

CPC classification number: B60G17/0185 ,  B60G17/0152 ,  B60G17/019 ,  B60G2202/414 ,  B60G2202/416 ,  B60G2400/51 ,  B60G2600/08 ,  B60G2600/1875

Abstract: A state module selectively sets a present state to a first state in a predetermined order of states; a valve control module determines first target open and closed states for valves of a suspension system based on the present state and opens and closes the valves 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 pump hydraulic fluid toward the suspension system; and a diagnosis module configured to: record first and second values of pressures within the suspension system measured using pressure sensors, respectively, before and after the operation of the electric pump in the first direction, respectively; and selectively diagnose faults in a first subset of the valves based on whether pressure increases occurred.

公开(公告)号：US12059937B2

公开(公告)日：2024-08-13

申请号：US17499693

申请日：2021-10-12

Applicant: DRiV Automotive Inc.

Inventor： Peter Boon ,  Bert Vandersmissen ,  Frank Gommans

IPC: B60G17/00 ,  B60G17/015 ,  B60G17/0165 ,  B60G17/019

CPC classification number: B60G17/0165 ,  B60G17/0152 ,  B60G17/01908 ,  B60G2202/414 ,  B60G2400/10 ,  B60G2400/252 ,  B60G2400/821 ,  B60G2401/16 ,  B60G2500/11 ,  B60G2800/012 ,  B60G2800/014

Abstract: A suspension system and associated control methods for improving comfort by disabling passive pitch stiffness in the suspension system by holding open electromechanical comfort valves positioned in a manifold assembly of the suspension system. The manifold comfort valves are held open to disable the passive pitch stiffness of the suspension system if the vehicle is traveling down a rough road or if the vehicle is approaching a discrete road event like a pot-hole or speed bump. Deactivation of the passive pitch stiffness of the suspension system is determined based on road classification information, saved road events, and/or real-time vehicle data from on-board sensors. The suspension system therefore reduces pitch angles during pitch events induced by inertial forces caused by driver inputs and disables the pitch stiffness when the pitch event is caused by road inputs.

公开(公告)号：US11865887B2

公开(公告)日：2024-01-09

申请号：US17499705

申请日：2021-10-12

Applicant: DriV Automotive Inc.

Inventor： Peter Boon ,  Bert Vandersmissen

IPC: B60G17/015 ,  B60G17/019

CPC classification number: B60G17/0152 ,  B60G17/01908 ,  B60G2400/0511 ,  B60G2400/0512 ,  B60G2400/104 ,  B60G2400/106 ,  B60G2400/252 ,  B60G2400/5182 ,  B60G2500/102 ,  B60G2500/11 ,  B60G2800/012 ,  B60G2800/014

Abstract: A suspension system and associated control methods that reduce temperature related fluctuations in the internal pressures and stiffness of the suspension system. A manifold assembly is connected in fluid communication with a plurality of dampers via hydraulic circuits and a pump assembly via a pump hydraulic line. Onboard sensors generate real-time data regarding the vehicle. A suspension control unit, arranged in electronic communication with the aforementioned components, monitors the real-time data, sets a target stiffness and a target pressure, calculates an effective stiffness based on the real-time data, determines if the effective stiffness is above or below the target stiffness and sets a new target pressure accordingly by making stepwise decreases or increases until the new target pressure is reached.

公开(公告)号：US11697319B2

公开(公告)日：2023-07-11

申请号：US17499428

申请日：2021-10-12

Applicant: DRIV Automotive Inc.

Inventor： Bert Vandersmissen ,  Peter Boon

IPC: B60G17/08 ,  B60G17/016 ,  B60G13/08 ,  B60G21/00

CPC classification number: B60G17/08 ,  B60G13/08 ,  B60G17/016 ,  B60G21/00 ,  B60G21/002 ,  B60G21/005 ,  B60G2202/24 ,  B60G2204/62 ,  B60G2204/81 ,  B60G2204/8102 ,  B60G2204/82 ,  B60G2204/8304 ,  B60G2500/114 ,  B60G2500/302 ,  B60G2800/012 ,  B60G2800/014 ,  B60G2800/162 ,  B60G2800/914 ,  B60G2800/916

Abstract: A suspension system including four dampers is disclosed where each damper includes a compression chamber and a rebound chamber. A first hydraulic circuit includes a front hydraulic line, a rear hydraulic line, and a first longitudinal hydraulic line that extends between and fluidly connects the front and rear hydraulic lines of the first hydraulic circuit. A second hydraulic circuit includes a front hydraulic line, a rear hydraulic line, and a second longitudinal hydraulic line that extends between and fluidly connects the front and rear hydraulic lines of the second hydraulic circuit. First and second longitudinal comfort valves are positioned in the first and second longitudinal hydraulic lines, respectively, between the front and rear hydraulic lines. Both of the first and second longitudinal comfort valves are electromechanical valves and can be actuated to couple and decouple front axle roll control from rear axle roll control.

公开(公告)号：US12220963B2

公开(公告)日：2025-02-11

申请号：US18302382

申请日：2023-04-18

Applicant: DRIV Automotive Inc.

Inventor： Peter Boon ,  Tom Daniels ,  Paolo Diomedi ,  Peter Maex

IPC: B60G17/08 ,  B60G13/08 ,  B60G21/073

Abstract: A suspension system including hydraulic circuits that extend between dampers located at opposite corners of the vehicle and at least one load distribution unit that is connected in fluid communication with at least two hydraulic circuits. The load distribution unit includes a manifold block with a cylinder bore, a pair of pressure tubes, a piston rod assembly, and an integral rod guide and pressure tube coupler. The pressure tubes are partially received in the cylinder bore to define a pair of opposed cylinders and mate with the integral rod guide and pressure tube coupler. The piston rod assembly includes a piston rod and a pair of opposed pistons that are slidingly received within the opposed cylinders. In addition to retaining the pressure tubes, the integral rod guide and pressure tube coupler supports and permits the piston rod to slide longitudinally relative to the manifold block.