公开(公告)号：US20240109383A1

公开(公告)日：2024-04-04

申请号：US18127911

申请日：2023-03-29

申请人： PRATT & MILLER ENGINEERING & FABRICATION, LLC

发明人： Kenneth J. Flory ,  Jesper Slattengren ,  Guido Francesco Ritelli

IPC分类号： B60G11/26 ,  B60G17/056

CPC分类号： B60G11/265 ,  B60G17/056 ,  B60G2202/154 ,  B60G2202/413 ,  B60G2202/414 ,  B60G2202/416 ,  B60G2300/07 ,  B60G2500/114 ,  B60G2600/182 ,  B60G2800/912

摘要： A hydraulic suspension system for a motor vehicle having at least a pair of road engaging wheels. The suspension system includes, a hydraulic cylinder coupled with the each of the pair of road engaging wheels, the hydraulic cylinder defining a cap end volume and a rod end volume separated by a piston. A hydraulic supply circuit for the hydraulic cylinder includes, a high pressure hydraulic source, a low pressure hydraulic drain, a pair of hydraulic sub circuits each coupled to one of the hydraulic cylinder cap and rod end volumes. Each hydraulic sub circuit includes, a proportional supply flow valve coupled with the high pressure hydraulic source and one of the cylinder volumes, a return flow control proportional valve coupled with the low pressure hydraulic drain and the one cylinder volume, and an accumulator coupled to the associated hydraulic cylinder volume through an accumulator fill control proportional valve.

公开(公告)号：US11938776B1

公开(公告)日：2024-03-26

申请号：US17671256

申请日：2022-02-14

申请人： Zoox, Inc.

发明人： Alexandre Nunes ,  Johannes Edren

IPC分类号： B60G17/0165 ,  B60G17/018

CPC分类号： B60G17/0165 ,  B60G17/0182 ,  B60G2400/821 ,  B60G2600/172 ,  B60G2600/182 ,  B60G2600/1874

摘要： An active suspension control system for a vehicle includes a mathematical model based on a modal expansion of the vehicle. Model parameters of the vehicle can be extracted from the modal expansion using sensor data generated on the vehicle, e.g., on demand and/or in real time. The model parameters and the modal expansion can be used to determine a vehicle state, predict future vehicle states, and control aspects of an active suspension system based on the predicted future vehicle states. The model parameters may also be used to update the mathematical model, e.g., to account for component wear over time, and/or to detect anomalies or defects in the active suspension system.

公开(公告)号：US11938775B2

公开(公告)日：2024-03-26

申请号：US17478179

申请日：2021-09-17

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Hiroki Furuta

IPC分类号： B60G17/0165

CPC分类号： B60G17/0165 ,  B60G2204/62 ,  B60G2400/821 ,  B60G2600/182 ,  B60G2800/162 ,  B60G2800/916

摘要： A damping control system comprises a first vehicle, a second vehicle, and a storage device. The first vehicle provides, to the storage device, travel information including a change value of a road surface, position information, and position reliability of the position information. The storage device executes first update processing of updating related value information based on a road surface displacement-related value identified based on the change value, when the position reliability is equal to or higher than a threshold reliability, and executes second update processing of updating the related value information, when the position reliability is lower than the threshold reliability. The second vehicle executes preview damping control using a target control force calculated based on a control related value being a road surface displacement-related value at a predicted passing position.

公开(公告)号：US11906392B2

公开(公告)日：2024-02-20

申请号：US16980002

申请日：2019-08-01

申请人： Yanshan University

发明人： Dingxuan Zhao ,  Mingde Gong ,  Shuang Liu ,  Zhiguo Sun ,  Zhuxin Zhang ,  Bin Yang ,  Tao Ni ,  Qinghe Guo ,  Mengke Yang

IPC分类号： G01M17/04 ,  B60G17/00 ,  B60G17/015 ,  B60G17/016 ,  B60G17/018 ,  B60G17/0195

CPC分类号： G01M17/04 ,  B60G17/018 ,  B60G17/0152 ,  B60G17/0161 ,  B60G17/0195 ,  B60G17/015 ,  B60G2202/413 ,  B60G2204/62 ,  B60G2400/0511 ,  B60G2400/0512 ,  B60G2400/252 ,  B60G2500/30 ,  B60G2600/182 ,  B60G2600/602 ,  B60G2800/01

摘要： An in-vehicle stable platform system employing active suspension and a control method thereof is provided. The system includes a vehicle body, an in-vehicle stable platform, an inertial measurement device, an electronic control device, a servo controller set, multiple wheels, and suspension servo actuation cylinders and displacement sensors respectively corresponding to the wheels. The wheels are divided into three groups, which form three support points. The heights of the three support points are controlled to control orientation of the vehicle body. An amount of extension/retraction of the suspension servo actuation cylinders required to cause the in-vehicle stable platform to return to a horizontal level is calculated according to a measured pitch angle and a roll angle of the in-vehicle stable platform, and when a vehicle travels on an uneven road, the extension/retraction of each suspension servo actuation cylinder is controlled to cause the in-vehicle stable platform to be horizontal.

公开(公告)号：US11840120B2

公开(公告)日：2023-12-12

申请号：US17185691

申请日：2021-02-25

申请人： Fox Factory, Inc.

发明人： Connor Randall

IPC分类号： B60G17/048 ,  B60G15/12 ,  B63B34/10 ,  B60G15/06

CPC分类号： B60G17/048 ,  B60G15/12 ,  B60G15/065 ,  B60G2202/32 ,  B60G2204/62 ,  B60G2300/07 ,  B60G2300/12 ,  B60G2300/322 ,  B60G2500/30 ,  B60G2600/182 ,  B60G2800/914 ,  B63B34/10

摘要： A shock assembly with automatically adjustable ride height. The shock assembly includes a main chamber with a working fluid therein. A damping piston coupled to a piston shaft, the damping piston disposed in the main chamber to divide the main chamber into a compression side fluid chamber and a rebound side fluid chamber. An automatic ride height adjustment assembly including an internal floating piston (IFP) pump assembly and a spring preload piston assembly.

公开(公告)号：US11813912B1

公开(公告)日：2023-11-14

申请号：US18306025

申请日：2023-04-24

申请人： LIQUIDSPRING TECHNOLOGIES, INC.

发明人： Gary B. Ford ,  Richard J. Meyer

IPC分类号： B60G17/016 ,  B60G17/0185 ,  B60G17/019

CPC分类号： B60G17/0162 ,  B60G17/0185 ,  B60G17/01908 ,  B60G2202/413 ,  B60G2400/61 ,  B60G2500/302 ,  B60G2600/08 ,  B60G2600/182 ,  B60G2800/012 ,  B60G2800/014

摘要： A closed leveling system for a vehicle includes a suspension system having a number of corners, and each corner includes at least one strut to be coupled to at least one wheel of the vehicle. The closed leveling system also includes a sensor and a master controller in communication with the sensor. The master controller includes a memory device including computer-readable instructions, and a processor in communication with the memory device. The leveling system also includes a power module assembly including a reservoir containing compressible liquid, a pump configured to withdraw the compressible liquid from the reservoir, a dump valve configured to transfer the compressible liquid into the reservoir, and isolation valves. Each isolation valve is associated with at least one corner. The leveling system further includes secondary volumes in selective fluid communication with the reservoir. Each secondary volume is associated with one isolation valve and at least one corner.

公开(公告)号：US20230286346A1

公开(公告)日：2023-09-14

申请号：US18173075

申请日：2023-02-23

申请人： HONDA MOTOR CO., LTD.

发明人： Ryosuke YAMAZAKI ,  Kazuya KONADA ,  Takashi YANAGI

IPC分类号： B60G17/0165 ,  B60G17/018 ,  B60G17/019

CPC分类号： B60G17/0165 ,  B60G17/018 ,  B60G17/019 ,  B60G2500/10 ,  B60G2600/182

摘要： A vehicle suspension system includes: a road surface sensor provided in a vehicle body portion ahead of a front wheel to detect an unevenness of a road surface; an electromagnetic damper that applies a damping force and a propulsive force along a stroke direction to a vehicle body and the front wheel with the aid of a motor element; and an ECU. The road surface sensor includes: a first road surface sensor; and a second road surface sensor that overlaps the first road surface sensor in a vehicle width direction and is provided at a position behind the first road surface sensor. The ECU includes: a road surface height calculation unit that calculates a road surface height based on detection values from the road surface sensors and a movement amount of the vehicle; and a damper control unit that controls the motor element based on the calculated road surface height.

公开(公告)号：US11724556B2

公开(公告)日：2023-08-15

申请号：US17694937

申请日：2022-03-15

申请人： Justin Smith

发明人： Justin Smith

IPC分类号： B60G17/019 ,  B60G17/016

CPC分类号： B60G17/019 ,  B60G17/016 ,  B60G2204/422 ,  B60G2204/62 ,  B60G2400/25 ,  B60G2401/00 ,  B60G2401/12 ,  B60G2500/104 ,  B60G2500/30 ,  B60G2600/182 ,  B60G2800/162 ,  B60G2800/914 ,  B60G2800/916

摘要： Described are devices, systems, and methods that enable greater control and customization of variable suspension systems via mechanical modification, among other advantages. In one example, a linkage device is configured to be attached to a suspension arm of a vehicle and to a vehicle frame of the vehicle. The linkage device is configured to mechanically modify one or more physical states detected by a sensor of the vehicle, thereby causing the sensor to output modified signals to a controller, and causing the controller to output modified control signals to a variable shock absorber connected between the vehicle frame and the suspension arm, thereby modifying one or more variable physical properties of the variable shock absorber.

公开(公告)号：US11697317B2

公开(公告)日：2023-07-11

申请号：US17184512

申请日：2021-02-24

申请人： Fox Factory, Inc.

发明人： Ivan Tong

IPC分类号： B60G1/00 ,  B60G17/0165 ,  F16F9/46 ,  B60G17/018 ,  B60G13/08 ,  B60G17/019 ,  B60G17/08 ,  F16F9/19 ,  F16F9/512

CPC分类号： B60G17/0165 ,  B60G13/08 ,  B60G17/018 ,  B60G17/01908 ,  B60G17/08 ,  F16F9/19 ,  F16F9/46 ,  F16F9/5126 ,  B60G2202/24 ,  B60G2204/61 ,  B60G2206/011 ,  B60G2206/99 ,  B60G2300/07 ,  B60G2300/124 ,  B60G2300/27 ,  B60G2400/82 ,  B60G2400/84 ,  B60G2401/142 ,  B60G2500/10 ,  B60G2600/042 ,  B60G2600/084 ,  B60G2600/182 ,  B60G2600/184 ,  B60G2600/1877 ,  B60G2600/20 ,  B60G2600/21 ,  B60G2600/704 ,  B60G2800/87

摘要： A modular electronic damping control system is described and includes a damping component located at a vehicle suspension location. The modular electronic damping control system also includes a control system configured to control the damping component, and determine the type of damping component present. Also, the control system is configured to automatically tune a vehicle's suspension based on the type of damping component present, and automatically monitor the damping component and determine when a change has been made to the damping component so that the control system can then automatically re-tune the vehicle's suspension based on the change to the damping component.

公开(公告)号：US11679820B2

公开(公告)日：2023-06-20

申请号：US17437544

申请日：2020-02-26

申请人： HYDAC MOBILHYDRAULIK GMBH

发明人： Alexander Streit

IPC分类号： B62D33/06 ,  B60G11/26 ,  B60G17/04 ,  B60G17/08 ,  B60G99/00

CPC分类号： B62D33/0608 ,  B60G11/265 ,  B60G17/04 ,  B60G17/08 ,  B60G99/002 ,  B60G2202/154 ,  B60G2202/413 ,  B60G2202/416 ,  B60G2202/44 ,  B60G2204/162 ,  B60G2300/08 ,  B60G2300/09 ,  B60G2500/10 ,  B60G2500/30 ,  B60G2600/182 ,  B60G2800/9123

摘要： A spring-damper system includes at least a differential cylinder (4), a hydraulic accumulator (26) and a control valve device (1, 2). By at least one motor-pump unit (22), pressure fluid can be supplied to the annular end (6) or both the annular end (6) and the piston end (8) of the differential cylinder (4) in a closed circuit using the control valve device (1, 2).