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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 4417. Отображено 100.
12-01-2012 дата публикации

Damping force control apparatus

Номер: US20120010780A1
Автор: Taisuke Hayashi, Yanqing Liu, Yuichi Mizuta
Принадлежит: Toyota Motor Corp

A control mode for a damping force characteristic is set to be a variable control when a product of the sum x b ′ of sprung member speeds and a sprung-member-unsprung-member-relative-speed x s ″ is positive. Accordingly, when the vibration in a middle/high frequency range is not being input to a suspension apparatus, an operation of a variable throttle mechanism is controlled so that a step number representing the damping force characteristic of a damper varies with a vibration state of a sprung member HA based on a Nonlinear H ∞ control theory. When the product of x b ′ and x s ′ is negative, the control mode is set to be an operation prohibiting control. When the vibration in the middle/high frequency range is input to the suspension apparatus, operation of the variable throttle mechanism is prohibited, and suppresses an increase in the operation frequency or in the operation amount of the variable throttle mechanism.

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Номер записи: 1
08-03-2012 дата публикации

Shock absorber having self pumping unit

Номер: US20120055747A1
Автор: Myung Hwa Hyun, Woo Jin Jung
Принадлежит: Mando Corp

A shock absorber, in which external gas is sucked by movement of a piston rod to obtain compressed gas, which is used for inhibiting the “lag” phenomenon. A piston valve is connected to one end of a piston rod received in an inner shell and moved between rebound and compression strokes, an inner space of the inner shell being divided into a rebound chamber and a compression chamber by the piston valve. A reservoir chamber is provided in an outer shell outside of the inner shell to supply oil to the compression chamber in the rebound stroke and to recover oil in the compression stroke. The shock absorber has a high pressure tank with a high pressure chamber installed outside of the outer shell, and a self pumping unit for sucking gas and pumping it into the high pressure chamber using energy generated by movement of the piston rod.

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Номер записи: 2
08-03-2012 дата публикации

Sprung mass damping control system of vehicle

Номер: US20120059544A1
Автор: Akihiro Kimura, Eiji Fukushiro, Gohki Kinoshita, Kaiji Itabashi, Koichiro Muta, Masaya Yamamoto, Shunsuke Oyama, Takanori Aoki, Takashi Saito, Toshiya Hashimoto, Yoshitaka Oikawa
Принадлежит: Toyota Motor Corp

A sprung mass damping control system of a vehicle, which aims to suppress sprung mass vibration generated in a vehicle body of a vehicle provided with at least a motor-generator (first and second motor-generators) as a drive source, includes a sprung mass damping control amount calculating device that sets a sprung mass damping control amount for suppressing the sprung mass vibration, and a drive source control device (a motor-generator control device) that executes sprung mass damping control by controlling a motor-generator control amount of the motor-generator to realize the sprung mass damping control amount.

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Номер записи: 3
20-12-2012 дата публикации

Piston-Type Actuator and Static Fluid Damper and Vehicles Including Same

Номер: US20120319376A1
Автор: Hiroyuki Tokunaga, Jinghong Yu
Принадлежит: Individual

A vehicular fluid damper system comprises a piston-type actuator, a static fluid damper, first and second flow passages, a first flow control valve, and a controller. The piston-type actuator comprises a cylinder and a piston that cooperate with one another to define first and second chambers. The static fluid damper defines first, second, and third dampening chambers. The first and second dampening chambers are in fluid communication with one another. The second and third dampening chambers are in fluid communication with each other. The first flow passage is in fluid communication with the first dampening chamber and the first chamber. The second flow passage is in fluid communication with the second dampening chamber and the second chamber. The controller is configured to facilitate operation of the first flow control valve to change a flow rate of fluid through the first flow passage.

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Номер записи: 4
11-04-2013 дата публикации

Hydraulic Suspension System for Work Vehicle

Номер: US20130087421A1
Автор: Akihiro Matsuzaki, Atsushi Hayashi, Kenichi Iwami, Nobuyuki Okabe, Shigeki Hayashi, Toshimitsu Yazaki
Принадлежит: Kubota Corp

The hydraulic suspension system comprises a suspension mechanism ( 100 ) for a traveling vehicle body, a suspension reference position variation mechanism ( 18 ) for varying a reference position of a suspension stroke of the suspension mechanism, and a stopped state detector ( 58 ) for detecting a state in which operation of the suspension mechanism ( 100 ) has stopped. The control management unit ( 60 ) controls the suspension reference position variation mechanism ( 18 ) so that when operation of the suspension mechanism ( 100 ) is detected by the stopped state detector ( 58 ) to be in a stopped state, the operation of the suspension mechanism ( 100 ) moves toward a target range, in preference to control based on a suspension stroke position obtained from a suspension stroke position sensor ( 37 ).

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Номер записи: 5
11-04-2013 дата публикации

Multi-function damper system

Номер: US20130090808A1
Автор: Charles Lemme, William Richards
Принадлежит: Individual

The embodiments of the invention are directed to a method and apparatus for improvement in the function of dampers used on mobile vehicles such as recreational vehicles. The main function of current dampers (sometimes called shock absorbers) is to extract energy from the suspension system of a moving vehicle by forcing liquid through a system of valves internal to the damper. This invention adds two more functions. One is to lock the suspension so it cannot move when the vehicle is stationary. The second additional function is to level the chassis of the vehicle with respect to the gravity field.

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Номер записи: 6
18-07-2013 дата публикации

Active damping device, vehicle, method for controlling active damping device

Номер: US20130184935A1
Автор: Kenta Adachi, Yasushi Muragishi
Принадлежит: Sinfonia Technology Co Ltd

Provided is an active damping device (X) that suppresses vibrations of an object (T) to be damped by utilizing a reaction force generated when an auxiliary mass ( 1 ) is driven by an actuator ( 2 ). The active damping device (X) includes a stiffness/damping controller ( 5 ) that multiplies the displacement and the operating speed of the actuator ( 2 ) by the stiffness gain (k 1a ) and the damping gain (c 1a ) and provides feedback of the multiplication result so that the natural frequency of a damping device machine system (X 1 ) becomes equal to the excitation frequency (ω) of the object (T) to be damped and the damping device machine system (X 1 ) is controlled to have properties of counteracting the damping thereof. The stiffness/damping controller ( 5 ) is configured to adjust the stiffness gain (k 1a ) and the damping gain (c 1a ) according to the varying excitation frequency (ω). The active damping device (X) capable of suitably suppressing the vibration corresponding to the excitation frequency component even when the excitation frequency varies can thus be provided.

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Номер записи: 7
10-10-2013 дата публикации

Method and apparatus for an adaptive suspension support system

Номер: US20130264455A1
Автор: II William E. Woodbury, Jody G. Robbins
Принадлежит: Individual

A method and apparatus for an adaptive, multi-axis suspension system providing both coarse and fine suspension for payloads such as passenger seats, trailers, passenger compartments of motor vehicles, shock/vibration generating devices etc. Coarse suspension control is provided to maintain the payload within a selected position regardless of the weight of the payload. Fine suspension control is provided by monitoring and analyzing vibration characteristics in time and/or frequency domains to determine a variable amount of damper resistance to be exerted by a magnetorheological (MR) device. A nominal damper resistance of the MR device is selected based at least on the combined weight of the payload. A piston of the MR device is centered about its throw range and the piston is actuated at angles not parallel to the movement of the payload to provide low-profile operation.

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Номер записи: 8
01-01-2015 дата публикации

Vehicle axle suspension system

Номер: US20150001825A1
Автор: Benedikt Müller, Christof BOGE, Jacek Zatrieb, Thilo Kazimiers
Принадлежит: Deere and Co, Weber Hydraulik GmbH Germany, Weber-Hydraulik GmbH

A suspension system is provided for a movable, supported vehicle axle. The suspension system includes a pair of hydraulic suspension cylinders, which are placed between the vehicle axle and a supporting vehicle structure. Each hydraulic suspension cylinder includes a first work chamber connected to a first pressure accumulator, and a second work chamber connected to a second pressure accumulator. A pressure-limiting valve is exposed to pressure in the first work chamber and has an outlet connected to the second pressure accumulator.

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Номер записи: 9
05-01-2017 дата публикации

NOSE-DIVE REDUCING SUSPENSION LOCK ARRANGEMENT FOR MOTOR VEHICLE

Номер: US20170001672A1
Автор: BODIN Anders
Принадлежит: BAE SYSTEMS HÄGGLUNDS AKTIEBOLAG

The present invention relates to a method for controlling a suspension system of a motor vehicle comprising a vehicle body and a plurality of wheel pairs (), wherein the suspension system comprises spring members arranged for resilient connection between the wheels of the vehicle and said vehicle body. The method comprises the step of: monitoring at least one first parameter indicating braking of thee motor vehicle, and when said parameter indicates braking of the motor vehicle, preventing compression of the spring members of at least one wheel pair () of the motor vehicle for counteracting a rotation of the vehicle body in connection to braking. 12222abcd. A method for controlling a suspension system of a motor vehicle comprising a vehicle body and a plurality of wheel pairs (/ , /) , wherein the suspension system comprises spring members arranged for resilient connection between the wheels of the vehicle and said vehicle body , wherein the method comprises the step of:monitoring at least one first parameter indicating braking of the motor vehicle; and{'b': 2', '2', '2', '2, 'i': a', 'b', 'c', 'd, 'when said parameter indicates braking of the motor vehicle, preventing compression of the spring members of at least one wheel pair (/, /) of the motor vehicle for counteracting a rotation of the vehicle body in connection to braking.'}22222abcd. A method according to claim 1 , wherein the step of preventing compression of the spring members is performed such that wheel suspension compression is prevented only if the wheel forces from the ground acting on the wheel in the wheel pair (/ claim 1 , /) do not exceed a certain threshold value.3. A method according to claim 1 , wherein the step of preventing compression of the spring members comprises applying a locking torque or a locking force on the spring members or thereto connected components.422ab. A method according to claim 3 , wherein the locking torque or the locking force is applied in such a way that compression ...

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Номер записи: 10
03-01-2019 дата публикации

Distributed active suspension with an electrically driven pump and valve controlled hydraulic pump bypass flow path

Номер: US20190001775A1
Автор: Ryan Bavetta, Zachary J. Jackowski, Zackary Martin Anderson
Принадлежит: ClearMotion Inc

A regenerative shock absorber that include a housing and a piston that moves at least partially through the housing when the shock is compressed or extended from a rest position. When the piston moves, hydraulic fluid is pressurized and drives a hydraulic motor. The hydraulic motor, in turn, drives an electric generator that produced electric energy. The electric energy may be provided to a vehicle, among other things. The regenerative shock absorber may also provide ride performance that comparable to or exceeds that of conventional shock absorbers.

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Номер записи: 11
03-01-2019 дата публикации

TRAVELING CONTROL SYSTEM FOR VEHICLE

Номер: US20190001781A1
Автор: FURUTA Hiroki
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A traveling control system for a vehicle includes a first sprung structure acceleration sensor, a second sprung structure acceleration sensor, a third sprung structure acceleration sensor, a fourth sprung structure acceleration sensor, and an electronic control unit. The electronic control unit is configured to calculate a vertical acceleration, a roll acceleration, and a pitch acceleration at a gravity center position, calculate vertical accelerations of a sprung structure at positions of a front right wheel, a front left wheel, a rear right wheel, and a rear left wheel, and control traveling of the vehicle based on the vertical accelerations of the sprung structure at the positions of the front right wheel, the front left wheel, the rear right wheel, and the rear left wheel. 1. A traveling control system for a vehicle including a sprung structure , a front right wheel , a front left wheel , a rear right wheel , and a rear left wheel , the traveling control system comprising:a first sprung structure acceleration sensor configured to detect a vertical acceleration of the sprung structure at a first position of the sprung structure in a direction of the front right wheel when viewed from a gravity center position of the sprung structure;a second sprung structure acceleration sensor configured to detect a vertical acceleration of the sprung structure at a second position of the sprung structure in a direction of the front left wheel when viewed from the gravity center position of the sprung structure;a third sprung structure acceleration sensor configured to detect a vertical acceleration of the sprung structure at a third position of the sprung structure in a direction of the rear right wheel when viewed from the gravity center position of the sprung structure;a fourth sprung structure acceleration sensor configured to detect a vertical acceleration of the sprung structure at a fourth position of the sprung structure in a direction of the rear left wheel when viewed ...

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Номер записи: 12
03-01-2019 дата публикации

Damper With Volume Reducing Insert

Номер: US20190001783A1
Автор: DIEZ Veronica, GARCIA Iñaki
Принадлежит:

A shock absorber including a pressure tube, a piston assembly slidably disposed within the pressure tube, and a fluid transfer tube that extends about the pressure tube is provided. The piston assembly divides an inner volume of the pressure tube into first and second working chambers. An intermediate chamber between the pressure tube and the fluid transfer tube is arranged in fluid communication with the first working chamber. A valve assembly is disposed in fluid communication with the intermediate chamber and the second working chamber. The valve assembly controls fluid flow between the intermediate chamber and the second working chamber. At least part of the intermediate chamber is formed by a fluid transfer channel that extends longitudinally within the fluid transfer tube to provide a fluid flow path extending between the first working chamber and the valve assembly. 1. A shock absorber comprising:a pressure tube extending about a longitudinal axis and defining an inner volume;a piston assembly attached to a piston rod and slidably disposed within the pressure tube, the piston assembly dividing the inner volume of the pressure tube into a first working chamber and a second working chamber;a fluid transfer tube extending about the pressure tube such that an intermediate chamber is defined between the pressure tube and the fluid transfer tube, the intermediate chamber disposed in fluid communication with the first working chamber; anda valve assembly disposed in fluid communication with and controlling fluid flow between the intermediate chamber and the second working chamber,wherein at least part of the intermediate chamber is formed by a fluid transfer channel that extends longitudinally within the fluid transfer tube to provide a fluid flow path extending between the first working chamber and the valve assembly.2. The shock absorber of claim 1 , further comprising:an insert positioned in the intermediate chamber that reduces the volume of the intermediate ...

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Номер записи: 13
13-01-2022 дата публикации

Shock absorber for a vehicle

Номер: US20220009304A1
Автор: Daniel Leclerc
Принадлежит: BOMBARDIER RECREATIONAL PRODUCTS INC

A shock absorber for a vehicle includes an inner tube at least partially defining an inner fluid compartment and an outer tube enclosing at least in part the inner tube therein. Together, the inner tube and the outer tube at least partially define an outer fluid compartment therebetween. The inner tube defines a bypass zone having a plurality of bypass apertures that fluidly communicate the inner fluid compartment with the outer fluid compartment. A piston is movably mounted within the inner tube and moves in compression and in rebound. The piston defines a piston passage extending through the piston for permitting fluid flow between a first side and second side of the piston. An electronically controlled valve is connected to the piston and controls fluid flow through the piston passage. A method for controlling the shock absorber is also disclosed.

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Номер записи: 14
20-01-2022 дата публикации

ROUGH ROAD DETECTION

Номер: US20220016950A1
Автор: DIAO Andrew, ERICKSEN Everet Owen, FRAGUGLIA Mike, PETERSON Evan, Pickett James T.
Принадлежит: Fox Factory, Inc.

A rough road detection system is disclosed. The system includes a sensor data receiver to receive sensor data from one or more sensors monitoring a vehicle. A sensor data evaluator to: identify a repeating pattern in the sensor data, the repeating pattern indicative of a terrain type being traversed by the vehicle, determine a value of the repeating pattern, obtain a present set of operational values for at least one damping characteristic of an active valve damper coupled with the vehicle, and modify the present set of operational values for the at least one damping characteristic of the active valve damper based on the value of the repeating pattern to develop a modified set of operational values for the at least one damping characteristic of the active valve damper. 1. A system comprising:a sensor data receiver configured to receive sensor data from one or more sensors monitoring a vehicle; identify a repeating pattern in said sensor data, said repeating pattern indicative of a terrain type being traversed by said vehicle;', 'determine a value of said repeating pattern;', 'obtain a present set of operational values for at least one damping characteristic of an active valve damper coupled with said vehicle; and', 'modify said present set of operational values for said at least one damping characteristic of said active valve damper based on said value of said repeating pattern to develop a modified set of operational values for said at least one damping characteristic of said active valve damper., 'a sensor data evaluator configured to2. The system of further comprising:a sensor data storage configured to store said received sensor data from said one or more sensors monitoring said vehicle.3. The system of further comprising:a performance data storage configured to store said present set of operational values for said at least one damping characteristic of said active valve damper and said modified set of operational values for said at least one damping ...

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Номер записи: 15
12-01-2017 дата публикации

METHOD AND APPARATUS FOR AN ADJUSTABLE DAMPER

Номер: US20170008363A1
Автор: Cox Christopher Paul, ERICKSEN Everet Owen, Galasso Mario, Larson Mark, MCLELLAN Matt, TSIARAS Philip
Принадлежит: Fox Factory, Inc.

A method for controlling vehicle motion is described. The method includes accessing a set of control signals including a measured vehicle speed value associated with a movement of a vehicle. A control signal associated with user-induced input is also accessed. The method compares the measured vehicle speed value with a predetermined vehicle speed threshold value to achieve a speed value threshold approach status, and then compares the set of values to achieve a user-induced input threshold value approach status. The method monitors a state of a valve within the vehicle suspension damper, and determines a control mode for the vehicle suspension damper. The method also regulates damping forces within the vehicle suspension damper. 1. A non-transitory computer readable storage medium having stored thereon , computer-executable instructions that , when executed by a computer , cause the computer to perform a method for controlling vehicle motion , said method comprising:accessing a set of control signals, wherein a first control signal of said set of control signals comprises a measured vehicle speed value associated with a movement of a vehicle, and wherein a second control signal of said set of control signals comprises a set of values associated with at least one user-induced input, wherein a vehicle suspension damper is coupled with a frame of said vehicle;comparing said measured vehicle speed value with a predetermined vehicle speed threshold value that corresponds to said vehicle, to achieve an speed value threshold approach status;comparing said set of values associated with said at least one user-induced input with a predetermined user-induced input threshold value, to achieve a user-induced input threshold value approach status;monitoring a state of a valve within said vehicle suspension damper, wherein said state controls a damping force within said vehicle suspension damper;based on at least one of said vehicle speed value threshold approach status and said ...

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Номер записи: 16
12-01-2017 дата публикации

VEHICLE SHOCK ABSORBER SYSTEM AND ACCESSORY THEREOF

Номер: US20170008364A1
Автор: KAMIL Ami, MINI Izik
Принадлежит: REGO VEHICLES LTD.

A vehicle shock absorber system configured with more than one pressure cylinder that provides advantageous damping characteristics for different loads. There is provided a vehicle shock absorber system having a primary pressure cylinder including upper and lower primary chambers separated by a primary piston head, an auxiliary pressure cylinder including upper and lower auxiliary chambers separated by an auxiliary piston head, a first connection conduit connecting the upper primary chamber and the upper auxiliary chamber, a second connection conduit connecting the lower primary chamber and the lower auxiliary chamber, and a cylinder valve arrangement configured to regulate fluid flow to the auxiliary pressure cylinder. 1. A vehicle shock absorber system mounted between a wheel axle support of the vehicle and a different portion of the vehicle , comprising:a primary pressure cylinder comprising upper and lower primary chambers separated by a primary piston head, wherein said primary piston head is connected to said wheel axle support of the vehicle, and said primary pressure cylinder is connected to said different portion of the vehicle;an auxiliary pressure cylinder comprising upper and lower auxiliary chambers separated by an auxiliary piston head;a first connection conduit connecting said upper primary chamber and said upper auxiliary chamber;a second connection conduit connecting said lower primary chamber and said lower auxiliary chamber; anda cylinder valve arrangement configured to regulate fluid flow to said auxiliary pressure cylinder.2. The vehicle shock absorber system according to claim 1 , wherein said cylinder valve arrangement comprises a first valve located in said first connection conduit and/or a second valve located in said second connection conduit.3. The vehicle shock absorber system according to claim 1 , further comprising a bypass conduit connecting said upper and lower primary chambers.4. The vehicle shock absorber system according to claim 3 ...

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Номер записи: 17
11-01-2018 дата публикации

SYSTEM AND METHOD FOR CONTROLLING A VEHICLE

Номер: US20180009443A1
Автор: Norstad Tim P.
Принадлежит: Polaris Industries Inc.

A vehicle is provided including an electronic power steering system, an electronic throttle control system, and a stability control system. 1. A power steering method for a vehicle , the method including:detecting, by a controller of a power steering system, a selected gear of a transmission of the vehicle;determining, by the controller, a power steering assist level based on the selected gear of the transmission and a user torque input to a steering assembly of the vehicle; andoutputting, by the power steering system, steering torque assistance to the steering assembly of the vehicle based on the power steering assist level.2. The method of claim 1 , wherein the controller determines a first power steering assist level for a low range gear of the transmission and a second power steering assist level for a high range gear of the transmission claim 1 , the first power steering assist level being greater than the second power steering assist level.3. The method of claim 1 , further including detecting a ground speed of the vehicle based on output from a ground speed sensor claim 1 , wherein the determining the power steering assist level is further based on the detected ground speed.4. The method of claim 3 , wherein the power steering assist level for a same selected gear of the transmission is greater for low ground speeds than for high ground speeds.5. The method of claim 1 , further including estimating claim 1 , by the controller claim 1 , a ground speed of the vehicle based on the engine speed claim 1 , a predetermined maximum engine speed claim 1 , and a predetermined maximum ground speed claim 1 , wherein the determining the power steering assist level is further based on the estimated ground speed.6. The method of claim 1 , further including detecting a driveline condition of the vehicle claim 1 , the determining the power steering assist level further being based on the driveline condition claim 1 , wherein the driveline condition includes at least one of a ...

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Номер записи: 18
27-01-2022 дата публикации

Active valve customizable tune application

Номер: US20220025954A1
Автор: Andrew DIAO, Evan Peterson, Everet Owen Ericksen, James T. PICKETT, Mike FRAGUGLIA
Принадлежит: Fox Factory Inc

A system and method for utilizing an active valve customizable tune application is disclosed. The system initiates an active valve tune application. Receive a suspension tune for a vehicle, the suspension tune comprising a number of performance range adjustable settings. Presents the suspension tune within the active valve tune application on the display. Receive input to modify, at the active valve tune application, one or more of the number of performance range adjustable settings. Generates a modified suspension tune based on the modification input.

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Номер записи: 19
10-01-2019 дата публикации

SUSPENSION CONTROL SYSTEM

Номер: US20190009631A1
Автор: FURUTA Hiroki
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A suspension control system includes: a suspension, a damping force of which fluctuates in accordance with a control amount; and a control unit controlling the damping force by determining the control amount. The control unit executes a control amount correction process of determining the control amount by combining a base control amount and a correction control amount. The control unit executes the control amount correction process such that the damping force becomes smaller than a base damping force regardless of a stroke speed in the case where a requested damping direction is an upward direction, and executes the control amount correction process such that the damping force becomes larger than the base damping force regardless of the stroke speed in the case where the requested damping direction is a downward direction. 1. A suspension control system mounted on a vehicle , the suspension control system comprising:a suspension provided for a wheel of the vehicle and a damping force of which fluctuates in accordance with a control amount; anda control unit configured to determine the control amount and control the damping force, whereinthe control unit is configured to execute a base calculation process of calculating a base control amount that is a base value of the control amount and a control amount correction process of determining the control amount by combining the base control amount and a correction control amount,a base damping force is the damping force that corresponds to the base control amount,a stroke speed is a relative speed between a sprung structure and an unsprung structure that are mutually coupled via the suspension,a requested damping direction is a direction of the damping force that is requested to suppress vibrations of the sprung structure, andthe control unit is configured to execute the control amount correction process such that the damping force becomes smaller than the base damping force regardless of the stroke speed in the case ...

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Номер записи: 20
09-01-2020 дата публикации

DAMPER WITH VEHICLE INTERFACE ADAPTER

Номер: US20200009933A1
Автор: FLINT Jason Edward, HAIGHT Trevor Daniel
Принадлежит:

Some examples include a damper having an outer tube with a piston reciprocally mounted on an interior of the outer tube. A dampening force generating mechanism may be mounted on the outer tube within a threshold distance from a first end of the outer tube to control a dampening property of the piston. In addition, a vehicle interface adapter may seal the first end of the outer tube. The vehicle interface adapter may include an insertion portion extending outward from the first end of the outer tube. The insertion portion is able to be inserted into a cup-shaped portion of a vehicle attachment receptacle. 1. A damper comprising:an outer tube;an inner tube mounted within the outer tube to form an annular outer chamber between the outer tube and the inner tube;an intermediate tube sealed to the inner tube to form an intermediate annular chamber between the intermediate tube and the inner tube;a piston reciprocally mounted in an interior of the inner tube, wherein the interior of the inner tube includes an inner chamber in fluid communication with the intermediate annular chamber;a base valve that regulates fluid flow between the annular outer chamber and the inner chamber;a solenoid valve operable by a solenoid, the solenoid valve in fluid communication with the annular outer chamber and the annular intermediate chamber to control a pressure level in the inner chamber; anda vehicle interface adapter sealing a first end of the outer tube, the cylindrical vehicle interface adapter including a cylindrical insertion portion extending outward from the first end of the outer tube for insertion into a cup-shaped portion of a vehicle attachment receptacle.2. The damper as recited in claim 1 , wherein the cylindrical insertion portion has a length greater than a height of a wall of the cup-shaped portion of vehicle attachment receptacle to provide clearance for the solenoid.3. The damper as recited in claim 1 , wherein:a diameter of the cylindrical insertion portion is sized to ...

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Номер записи: 21
14-01-2021 дата публикации

Valve device and shock absorber

Номер: US20210010558A1
Автор: Hidemasa Kato, Ryosuke Kamakura
Принадлежит: KYB Corp

Provided is a valve device and a shock absorber that can prevent them from being in a failure state at the normal time and can freely set a passive valve even when both pressure control and passage opening/closing are performed by a solenoid valve. For this reason, the valve device includes a first passage and a second passage connected downstream of the pressure introducing passage, a solenoid valve that opens the first passage to control the upstream pressure and closes the second passage when energized, and that closes the first passage and opens the second passage when not energized, and a passive valve provided downstream of the solenoid valve in the second passage.

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Номер записи: 22
03-02-2022 дата публикации

APPARATUS AND METHOD FOR CONTROLLING VEHICLE SUSPENSION

Номер: US20220032711A1
Автор: LEE Baek Hee, LEE Jin Hee
Принадлежит:

An apparatus and a method for controlling vehicle suspension, which controls a variable damper in consideration of virtual tire damping, may include a variable damper which is installed between a vehicle body and a wheel, a first acceleration sensor which is installed at each corner of the vehicle body to measure a vehicle body corner vertical acceleration, a second acceleration sensor which is installed to each wheel to measure a wheel vertical acceleration, and a controller that estimates a road surface roughness based on the vehicle body corner vertical acceleration and the wheel vertical acceleration, determines a virtual tire damping required damping force based on the estimated road surface roughness, and adjusts a damping force of the variable damper based on the determined virtual tire damping required damping force. 1. An apparatus of controlling vehicle suspension , the apparatus comprising:a variable damper mounted between a vehicle body and a wheel of a vehicle;a first acceleration sensor mounted at each corner of the vehicle body and configured to measure a vehicle body corner vertical acceleration;a second acceleration sensor mounted to each wheel of the vehicle and configured to measure a wheel vertical acceleration; anda controller engaged to the first acceleration sensor and the second acceleration sensor and configured to estimate a road surface roughness according to the vehicle body corner vertical acceleration and the wheel vertical acceleration, to determine a virtual tire damping required damping force according to the estimated road surface roughness, and to adjust a damping force of the variable damper according to the determined virtual tire damping required damping force.2. The apparatus of claim 1 , wherein the controller is configured to remove noise from measured signals output from the first acceleration sensor and the second acceleration sensor through filtering the noise from the measured signals and to obtain a vehicle body corner ...

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Номер записи: 23
03-02-2022 дата публикации

Hydraulic suspension system and method for operation of said system

Номер: US20220032719A1
Автор: Alessandro Benevelli, Daniele DODI, Stefano Fasano
Принадлежит: Dana Motion Systems Italia SRL

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.

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Номер записи: 24
19-01-2017 дата публикации

DAMPER ASSEMBLY AND A METHOD OF FORMING THE DAMPER ASSEMBLY

Номер: US20170015172A1
Автор: Izak Robert G., Marble Robert P.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A damper assembly includes a housing. A method of forming a damper assembly includes extruding the housing formed of aluminum. The housing defines a first chamber and a first passage spaced from each other, with a first inlet fluidly connecting the first chamber and the first passage. A piston is disposed in the first chamber and is movable in a first direction and a second direction opposite the first direction. A first restrictor valve is disposed in the first passage. The first restrictor valve is configured to restrict a flow of liquid into the first passage from the first chamber and the first inlet as the piston moves in one of the first and second directions which causes the liquid in the first chamber to increase a pressure applied to a first side of the piston to dampen movement of the piston. 1. A damper assembly comprising:a housing defining a first chamber and a first passage spaced from each other, wherein the housing defines a first inlet that fluidly connects the first chamber and the first passage, with the first chamber, the first passage and the first inlet each configured to contain a liquid;a piston disposed in the first chamber and movable in a first direction and a second direction opposite the first direction, with the piston configured to displace the liquid during movement in the first and second directions; anda first restrictor valve disposed in the first passage and configured to restrict a flow of the liquid into the first passage from the first chamber and the first inlet as the piston moves in one of the first and second directions which causes the liquid in the first chamber to increase a pressure applied to a first side of the piston to dampen movement of the piston.2. The assembly as set forth in wherein the first chamber and the first passage are substantially parallel to each other in a non-concentric orientation.3. The assembly as set forth in :wherein the housing defines a first outlet that fluidly connects the first chamber and ...

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Номер записи: 25
18-01-2018 дата публикации

RIDE PERFORMANCE OPTIMIZATION SYSTEMS AND DEVICES, AND RELATED METHODS

Номер: US20180015801A1
Автор: BULAT Benjamin, LENIUS Phil, Mohamed Ahmed, NORTON Russ Lee
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

A vehicle suspension control system includes a controller configured to receive recorded information related to a location and severity of a surface irregularity to be traversed by a vehicle, determine a desired damping force based on the information, and send a damper adjustment signal based on the desired damping force. The vehicle suspension control system further includes an adjustable damper configured to adjust a damping force of the vehicle suspension system in response to the damper adjustment signal. Methods include controlling vehicle suspension systems and gather information related to irregularities in a surface. 1. A vehicle suspension control system , comprising: receive from a remote information storage medium recorded information related to a location and severity of a surface irregularity to be traversed by a vehicle,', 'transmit to the remote information storage medium information related to the irregularity and one or both of a velocity and a steering angle of the vehicle when the vehicle traversed the location of the irregularity,', 'determine a desired damping force based on the information, and', 'send a damper adjustment signal based on the desired damping force; and, 'a controller configured toan adjustable damper configured to adjust a damping force of the vehicle suspension system in response to the damper adjustment signal.2. The vehicle suspension control system of claim 1 , wherein the controller is configured to receive the recorded information prior to the vehicle encountering the surface irregularity.3. The vehicle suspension control system of claim 1 , further comprising a receiver operably coupled with the controller and configured to receive the recorded information from the remote information storage medium.4. The vehicle suspension control system of claim 3 , wherein the remote information storage medium comprises cloud-based data storage.5. The vehicle suspension control system of claim 3 , further comprising a sensor operably ...

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Номер записи: 26
17-01-2019 дата публикации

Damping control device, damping control method, and moving body

Номер: US20190016188A1
Автор: Hiroshi Uji, Kazuma Yoshi, Kenichi Matsuhisa, Sho Tanaka, Takumi Hachisuka
Принадлежит: Sony Corp

A damping control device and a damping control method for controlling damping of a vehicle are provided. Damping control of the vehicle is performed by adaptively switching a damping mode while considering energy consumption (fuel economy, a consumption amount of a battery, and the like) according to a state of the vehicle such as a state of an interior of the vehicle, a driving state of the vehicle, and an ambient environment. That is, the state of an interior of the vehicle, the driving state of the vehicle, and the ambient environment are constantly monitored, and the damping mode is switched to a weak damping mode in the case where unnecessity of damping as strong as a current state is determined whereas the damping mode is switched to a strong damping mode in the case where necessity of stronger damping is determined.

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Номер записи: 27
16-01-2020 дата публикации

Suspension system using optically recorded information, vehicles including suspension systems, and methods of using suspension systems

Номер: US20200016952A1
Автор: Felix Weinreich, Michael Seemann, Mohsen Lakehal-ayat, Uwe Hoffmann, Yvonne Baeumchen
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A method for controlling a suspension system of a vehicle, as well as suspension systems, and a vehicle including a suspension system is provided. The suspension system may include at least one adjustable damping device that is controlled via a control signal, such as from a controller of the suspension system, in order to dynamically adjust the damping characteristic of the damping device. The control signal may be generated on the basis of at least one of current driving dynamics data and optically recorded information about an area of a ground surface.

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Номер записи: 28
16-01-2020 дата публикации

ADJUSTABLE VEHICLE SUSPENSION SYSTEM

Номер: US20200016953A1
Автор: Krosschell Brian D., Oakden-Graus Jonathon P.
Принадлежит: Polaris Industries Inc.

A damping control system for a vehicle having a suspension located between a plurality of ground engaging members and a vehicle frame includes at least one adjustable shock absorber having an adjustable damping profile and a driver actuatable input. The driver actuatable input may be positioned to be actuatable by the driver in the absence of requiring a removal of either of the hands of the driver from a steering device of the vehicle. 1. A method of controlling a damping characteristic of an adjustable shock absorber of a vehicle being operated by a driver , the driver steering the vehicle by holding a steering device with the hands of the driver , the method comprising the steps of:(a) electronically controlling with at least one controller the damping characteristic of the adjustable shock absorber based on a plurality of inputs from a plurality of sensors supported by the vehicle at a first time;(b) receiving at a second time subsequent to the first time a driver initiated request to alter the damping characteristic of the adjustable shock absorber through an driver actuatable input;(c) altering with the at least one controller, at a third time subsequent to the second time, the damping characteristic of the adjustable shock absorber based on the received driver initiated request; and(d) automatically altering with the at least one controller, at a fourth time subsequent to the third time, the damping characteristic of the adjustable shock absorber based on the plurality of inputs from the plurality of sensors.2. The method of claim 1 , wherein the vehicle maintains a ground speed of greater than zero from the first time through the fourth time.3. The method of claim 1 , wherein the damping characteristic at the fourth time is based on the plurality of inputs from the plurality of sensors supported by the vehicle at the fourth time.4. The method of claim 1 , wherein step (c) includes the steps of:deviating a stiffness of the damping characteristic of the ...

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Номер записи: 29
17-04-2014 дата публикации

Damper with digital valve

Номер: US20140102842A1
Автор: Daniel T. Keil, Darrell G. Breese, Jeffrey T. Gardner, Jeroen K. Paenhuysen, Karl C. Kazmirski, Matthew L. Roessle, Thomas P. Mallin
Принадлежит: Tenneco Automotive Operating Co Inc

A shock absorber has a compression valve assembly that provides a high damping load during a compression stroke and an extension valve assembly that provides a high damping load during an extension stroke. One or more digital valve assemblies is positioned to work in parallel with the compression valve assembly and the extension valve assembly to provide a lower damping load. The lowering of the damping load is based upon the cross sectional area of flow passages provided by the one or more digital valve assemblies.

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Номер записи: 30
28-01-2016 дата публикации

TORSION DEVICE

Номер: US20160023528A1
Автор: BOUGHTWOOD Martin Hugh
Принадлежит: DEREGALLERA HOLDINGS LTD

A torsion device comprising: a first part comprising a first resilient torsion member including: a first support end; a first free end spaced from the first support end; and a first engagement region; a second part comprising a second resilient torsion member including: a second support end; a second free end spaced from the second support end; and a second engagement region; wherein the second part is rotatable relative to the first part about an axis of rotation (A) between a first angular position and a second angular position, and the first and second torsion members are configured to urge the first and second engagement regions together to cause flexure of at least one of the first and second resilient torsion members as the second part rotates relative to the first part from the first angular position to the second angular position. 1. A torsion device comprising: a first support end;', 'a first free end spaced from the first support end; and', 'a first engagement region;, 'a first part comprising a first resilient torsion member including a second support end;', 'a second free end spaced from the second support end; and', 'a second engagement region;, 'a second part comprising a second resilient torsion member includingwherein the second part is rotatable relative to the first part about an axis of rotation between a first angular position and a second angular position, and the first and second torsion members are configured to urge the first and second engagement regions together to cause flexure of at least one of the first and second resilient torsion members as the second part rotates relative to the first part from the first angular position to the second angular position.2. A torsion device according to claim 1 , wherein the first and second torsion members are configured to urge the first and second engagement regions together as angular spacing between the first and second support ends increases as the second part rotates relative to the first part ...

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Номер записи: 31
24-01-2019 дата публикации

Estimating loads acting on a rear axle of a motor vehicle

Номер: US20190023096A1
Автор: Ahmed Mohamed, Mina Kaldas, Thorsten Wilhelm Hestermeyer
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

The disclosure relates to a method to estimate dynamic loads acting vertically on a rear axle of a motor vehicle during a forward driving operation. To enable an estimation of the dynamic loads acting vertically on the rear axle during the forward driving operation of the motor vehicle cost-effectively, the dynamic loads are estimated in consideration of dynamic mechanical forces engaging vertically at a front axle of the motor vehicle during the forward driving operation. In addition, dynamic acceleration forces engaging at a spring mass of the motor vehicle during the forward driving operation are also considered when estimating the dynamic loads during the forward driving operation.

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Номер записи: 32
23-01-2020 дата публикации

Vehicle suspension system

Номер: US20200023704A1
Автор: Tomoya Toyohira
Принадлежит: Honda Motor Co Ltd

A suspension system includes: an electromagnetic damper 2 that is provided between a vehicle body B which is a sprung member of a vehicle and a tire T which is an unsprung member of the vehicle, and applies a damping force and a drive force in a stroke direction to the vehicle body B and the tire T by a motor; an unsprung member acceleration sensor that detects unsprung member acceleration in the stroke direction of the tire; and an ECU that controls the motor. The ECU controls the motor to generate a load F m in such a direction that increases the relative velocity of the vehicle body B with respect to the tire T and of an amount corresponding to the unsprung member acceleration.

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Номер записи: 33
23-01-2020 дата публикации

VEHICLE BEHAVIOR CONTROL APPARATUS

Номер: US20200023705A1
Автор: HIRAO Ryusuke, ICHIMARU Nobuyuki
Принадлежит:

A controller as a generation mechanism control portion includes a base control portion that determines a lower limit value on an instruction signal (i.e., a base instruction value) that serves as a lower limit on a force to be generated by a variable damper (a force generation mechanism) according to at least a running speed of a vehicle. The base control portion corrects the base instruction value by a base instruction value calculation portion based on a result of a determination about a road surface output from a road surface determination portion (i.e., a result of detection by a road surface state detection portion). A vehicle behavior control apparatus is configured to variably control a damping force characteristic of the variable damper according to a road surface state with use of an instruction value output from the controller 1. A vehicle behavior control apparatus comprising:a force generation mechanism provided between a vehicle body side and a wheel side of a vehicle and configured to generate an adjustable force between the vehicle body side and the wheel side;a road surface state detection portion configured to be able to detect a road surface state ahead of the vehicle as a feedforward road surface state value;a vehicle body behavior information calculation portion configured to detect or estimate a state of a behavior of a vehicle body of the vehicle and calculate behavior information of the vehicle body as a feedback road surface state value; anda generation mechanism control portion configured to determine a value to be generated by the force generation mechanism based on the value of the vehicle body behavior information calculation portion and output an instruction signal therefor to the force generation mechanism,wherein the generation mechanism control portion includes a base control portion configured to determine a lower limit value on the instruction signal, the lower limit value serving as a lower limit on the force to be generated by the ...

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Номер записи: 34
28-01-2021 дата публикации

METHOD AND APPARATUS FOR AN ADJUSTABLE DAMPER

Номер: US20210023900A1
Автор: Cox Christopher Paul, ERICKSEN Everet Owen, Galasso Mario, Larson Mark, MCLELLAN Matt, TSIARAS Philip
Принадлежит: Fox Factory, Inc.

A method for controlling vehicle motion is described. The method includes accessing a set of control signals including a measured vehicle speed value associated with a movement of a vehicle. A control signal associated with user-induced input is also accessed. The method compares the measured vehicle speed value with a predetermined vehicle speed threshold value to achieve a speed value threshold approach status, and then compares the set of values to achieve a user-induced input threshold value approach status. The method monitors a state of a valve within the vehicle suspension damper, and determines a control mode for the vehicle suspension damper. The method also regulates damping forces within the vehicle suspension damper. 1accessing a set of control signals, wherein at least a first control signal of said set of control signals comprises a set of values associated with at least one user-induced input, wherein at least one vehicle suspension damper is coupled to a frame of said vehicle;accessing a set of release thresholds associated with a throttle position and a throttle velocity of said at least one user-induced input;comparing said set of values associated with said at least one user-induced input with a predetermined user-induced input threshold value, to achieve a user-induced input threshold value approach status;monitoring a state of at least one valve within said at least one vehicle suspension damper, wherein said state controls a damping force within said at least one vehicle suspension damper;based on said user-induced input threshold value approach status and said set of release thresholds, determining a control mode for said at least one vehicle suspension damper; andaccording to said control mode and based on said monitoring, regulating damping forces within said at least one vehicle suspension damper by actuating said at least one valve to adjust to a desired state, such that a tilt of said frame is reduced.. A non-transitory computer readable ...

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Номер записи: 35
28-01-2021 дата публикации

METHODS AND APPARATUS FOR SUSPENSION SET UP

Номер: US20210023901A1
Автор: BASS Charles, BAVETTA Ryan, FRANKLIN Joseph, Galasso Mario, Laird Andrew
Принадлежит: Fox Factory, Inc.

A method and apparatus are disclosed that assist a user in performing proper setup of a vehicle suspension. A user may utilize a device equipped with an image sensor to assist the user in proper setup of a vehicle suspension. The device executes an application that prompts the user for input and instructs the user to perform a number of steps for adjusting the suspension components. In one embodiment, the application does not communicate with sensors on the vehicle. In another embodiment, the application may communicate with various sensors located on the vehicle to provide feedback to the device during the setup routine. In one embodiment, the device may analyze a digital image of a suspension component to provide feedback about a physical characteristic of the component. 1 "a live view captured by an image sensor of a user's device, said live view including an image of said suspension component; and", 'receiving input related to said suspension component utilizing said input related to said suspension component to determine product information related to said suspension component, said input comprisingproviding instructions regarding said initial set up of said suspension component, wherein said instructions enable a user to properly achieve said initial set up of said suspension component, wherein said providing instructions regarding said initial set up of said suspension component further comprises providing pictures that show said user how to properly achieve said initial set up of said suspension component.. A non-transitory computer-readable storage medium including instructions that, when executed by a processor, cause the processor to perform steps for enabling initial set up of a suspension component of a vehicle, the steps comprising: This patent application is a continuation application of and claims the benefit of co-pending U.S. patent application Ser. No. 16/147,200, filed Sep. 28, 2018, entitled, “METHODS AND APPARATUS FOR SUSPENSION SET UP”, by ...

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Номер записи: 36
28-01-2021 дата публикации

Suspension control apparatus

Номер: US20210023904A1
Автор: Kentaro Kasuya, Nobuyuki Ichimaru, Ryusuke Hirao
Принадлежит: Hitachi Astemo Ltd

A suspension control apparatus includes a control device configured to control a damping characteristic of each of damping force adjustable shock absorbers. The control device includes an external force calculation portion configured to calculate a total external force working on a vehicle body based on a physical amount output from a physical amount extraction portion, an operation force calculation portion configured to calculate an operation-derived force applied to each of the damping force adjustable shock absorbers according to a load movement due to an operation on the vehicle, and a vehicle behavior extraction portion configured to determine an external force derived from a road surface input by separating the operation-derived force calculated by the operation force calculation portion from the total external force calculated by the external force calculation portion.

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Номер записи: 37
28-01-2021 дата публикации

Damping valve and shock absorber

Номер: US20210025471A1
Автор: Tomoyasu ABE, Yoshifumi Kobayashi, Yuusuke Furuta
Принадлежит: KYB Corp

A damping valve includes a valve seat member, a first valve element stacked on the valve seat member, a second valve element provided between an inner circumference valve seat of the valve seat member and the first valve element, the second valve element being configured to open and close a hole of the first valve element, and a biasing member configured to bias the first valve element towards the second valve element, wherein a surface of the second valve element on an opposite side from the valve seat member is higher than the outer circumference valve seat of the valve seat member.

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Номер записи: 38
04-02-2016 дата публикации

DAMPER CONTROL APPARATUS

Номер: US20160031286A1
Автор: KUBOTA Tomoo, OKUMURA Masatoshi
Принадлежит: KAYABA INDUSTRY CO., LTD.

A damper control apparatus damps vibration of an unsprung member by controlling a damping force of a damper in a vehicle, the damper being interposed between a sprung member and the unsprung member. The damper control apparatus includes a vibration level detecting unit that detects a vibration level serving as a magnitude of the vibration of the unsprung member, and a stroke speed detecting unit that detects a stroke speed of the damper. The damper control apparatus further includes a command value calculating unit that determines a control command value, the control command value is a command value for controlling the damping force of the damper on the basis of the vibration level of the unsprung member and the stroke speed of the damper. 1. A damper control apparatus for damping vibration of an unsprung member by controlling a damping force of a damper in a vehicle , the damper being interposed between a sprung member and the unsprung member , the damper control apparatus comprising:a vibration level detecting unit configured to detect a vibration level, the vibration level serving as a magnitude of vibration of the unsprung member;a stroke speed detecting unit configured to detect a stroke speed of the damper; anda command value calculating unit configured to determine a control command value on the basis of the vibration level of the unsprung member and the stroke speed of the damper, the control command value being a command value for controlling the damping force of the damper.2. The damper control apparatus as defined in claim 1 , wherein the command value calculating unit determines the control command value so that an incline of a characteristic line between the control command value and the stroke speed of the damper increases as the vibration level of the unsprung member increases.3. The damper control apparatus as defined in claim 1 , wherein the damper control apparatus is configured to hold a plurality of maps each representing a relationship between ...

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Номер записи: 39
17-02-2022 дата публикации

CONTROL DEVICE AND CONTROL METHOD FOR CONTROLLING ACTUATING MECHANISM FOR VEHICLE

Номер: US20220048354A1
Автор: IKEDA Yoshinori
Принадлежит: Hitachi Astemo, Ltd.

A control device and a control method for controlling an actuating mechanism for a vehicle according to the present invention are designed to detect whether an abnormality occurs in the voltage application device provided with a booster circuit to generate a boosted voltage to be applied to an electrorheological fluid, and to stop boosting of the booster circuit when an abnormality occurs in the voltage application device for preventing overheating caused by overcurrent flowing to the voltage application device when an abnormality occurs such as short-circuit and ground fault in the voltage application device. 1. A control device for controlling an actuating mechanism for a vehicle , the actuating mechanism for a vehicle using an electrorheological fluid as a working fluid , the actuating mechanism including a voltage application device provided with a booster circuit for boosting a source voltage and for generating a voltage to be applied to the electrorheological fluid , the control device comprising:an abnormality detection unit for detecting whether an abnormality occurs in the voltage application device; anda boost stopping unit that outputs a command to stop boosting of the booster circuit when an abnormality occurs in the voltage application device.2. The control device for controlling an actuating mechanism for a vehicle according to claim 1 , wherein:the voltage application device comprises a relay provided on a source voltage supply line to the booster circuit; andthe boost stopping unit outputs a command to turn the relay off as a command to stop boosting of the booster circuit when an abnormality occurs in the voltage application device.3. The control device for controlling an actuating mechanism for a vehicle according to claim 1 , wherein:the booster circuit comprises a transformer having a primary coil and a secondary coil, and a switching element connected to the primary coil in series, andthe boost stopping unit outputs a command to turn the ...

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Номер записи: 40
01-05-2014 дата публикации

Recuperating passive and active suspension

Номер: US20140116243A1
Автор: Koen Reybrouck, Kristoff Six, Stefan Van Raemdonck
Принадлежит: Tenneco Automotive Operating Co Inc

A hydraulic actuator assembly includes an actuator, a first sink subsystem in fluid communication with an upper working chamber of the actuator, a second sink subsystem in fluid communication with a lower working chamber of the actuator and a source subsystem in fluid communication with both the upper and lower working chambers of the actuator. A low pressure accumulator is in fluid communication with the upper and lower working chambers, the first and second sink subsystems and source subsystem. A high pressure accumulator is in fluid communication with the first and second sink subsystems and the source subsystem. The hydraulic actuator assembly can generate passive or active forces with or without energy recuperation.

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Номер записи: 41
17-02-2022 дата публикации

DAMPER ASSEMBLY

Номер: US20220049753A1
Автор: Deferme Stefan
Принадлежит:

A damper assembly includes a damper, an accumulator, and a tube mount. The damper includes a tube having an outer surface. The tube defines a central axis and a first cavity in the outer surface. The accumulator has an end defining a second cavity. The accumulator defines a longitudinal axis. The tube mount is attached to the outer surface of the tube around the first cavity. The tube includes a damper fluid. The end of the accumulator is supported by the tube mount to allow the damper fluid to flow from the tube through the first cavity and into the accumulator through the second cavity. The longitudinal axis of the accumulator is transverse to the central axis of the tube. 1. A damper assembly , comprising:a damper including a tube having an outer surface, the tube defining a central axis and a first cavity in the outer surface;an accumulator having an end defining a second cavity, the accumulator defining a longitudinal axis; anda tube mount attached to the outer surface of the tube around the first cavity;wherein the tube includes a damper fluid;wherein the end of the accumulator is supported by the tube mount to allow the damper fluid to flow from the tube through the first cavity and into the accumulator through the second cavity;wherein the longitudinal axis of the accumulator is transverse to the central axis of the tube.2. The damper assembly of claim 1 , wherein the tube mount includes a ring claim 1 , and the accumulator is supported by the ring.3. The damper assembly of claim 2 , wherein the end of the accumulator is welded to the ring.4. The damper assembly of claim 1 , wherein the tube mount and the end of the accumulator form a fluid-tight seal.5. The damper assembly of claim 1 , wherein the tube mount and the end of the accumulator form a substantially circular seal.6. The damper assembly of claim 1 , wherein the accumulator includes a piston and the damper fluid is movable into the accumulator to move the piston.7. The damper assembly of claim 1 , ...

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Номер записи: 42
17-02-2022 дата публикации

Damper assembly

Номер: US20220049754A1
Автор: Jacobus Schel
Принадлежит: Driv Automotive Inc

A damper includes a pressure tube extending about a longitudinal axis and defining an inner volume. The damper includes a piston attached to a piston rod and slidably disposed within the pressure tube. The piston divides the inner volume of the pressure tube into a first working chamber and a second working chamber. The damper includes a fluid connector having a first wall and a second wall, each elongated along the longitudinal axis and sealed to the pressure tube. The fluid connector has a third wall elongated along the longitudinal axis and extending from the first wall to the second wall. The pressure tube defines an opening at the first working chamber, and the third wall of the fluid connector defines an opening spaced from the opening of the pressure tube. The first wall, the second wall, and the third wall define a passage extending from the opening of the pressure tube to the opening of the third wall.

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Номер записи: 43
30-01-2020 дата публикации

HYDRAULIC VIBRATION DAMPER, IN PARTICULAR FOR A VEHICLE CHASSIS

Номер: US20200031190A1
Автор: HAMERS Wolfgang
Принадлежит:

A hydraulic vibration damper, in particular for a vehicle chassis, includes a cylinder tube for receiving a hydraulic fluid. A piston is axially movable within the cylinder tube along a cylinder tube axis and subdivides the cylinder tube into two working chambers. A piston rod is oriented parallel to the cylinder tube axis and is connected to the piston. At least one valve assembly for damping the piston movement in a direction of actuation is arranged at a fluid leadthrough. A bypass duct includes a sub-duct provided in addition to the fluid leadthrough between the two working chambers. A valve arrangement with continuously adjustable damping force is provided which regulates the throughflow through the fluid leadthrough and the sub-duct. The sub-duct includes a throttling mechanism, having a throttle, and a non-return valve. The throttle and the non-return valve of the sub-duct are arranged in series. 114.-. (canceled)15. A hydraulic vibration damper , in particular for a vehicle chassis , comprising:a cylinder tube shaped and sized to receive a hydraulic fluid,a piston that is axially movable within the cylinder tube along a cylinder tube axis and subdivides the cylinder tube into two working chambers,a piston rod that is oriented parallel to the cylinder tube axis and is connected to the piston,a valve assembly is arranged at a fluid leadthrough and is configured to damp the piston movement in a direction of actuation,a bypass duct that includes a sub-duct is provided in addition to the fluid leadthrough between the two working chambers, anda valve arrangement configured to generate a continuously adjustable damping force is configured to regulate the throughflow through the fluid leadthrough and the sub-duct,wherein the sub-duct comprises a throttling mechanism, the throttling mechanism having a throttle and a non-return valve arranged in series with respect to one another.16. The hydraulic vibration damper of claim 15 , wherein the non-return valve has a ...

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Номер записи: 44
04-02-2021 дата публикации

METHOD AND APPARATUS FOR AN ADJUSTABLE DAMPER

Номер: US20210031582A1
Автор: Cox Christopher Paul, ERICKSEN Everet Owen, Galasso Mario, Larson Mark, MCLELLAN Matt, TSIARAS Philip
Принадлежит: Fox Factory, Inc.

A method for controlling vehicle motion is described. The method includes accessing a set of control signals including a measured vehicle speed value associated with a movement of a vehicle. A control signal associated with user-induced input is also accessed. The method compares the measured vehicle speed value with a predetermined vehicle speed threshold value to achieve a speed value threshold approach status, and then compares the set of values to achieve a user-induced input threshold value approach status. The method monitors a state of a valve within the vehicle suspension damper, and determines a control mode for the vehicle suspension damper. The method also regulates damping forces within the vehicle suspension damper. 1accessing a set of control signals, wherein at least a first control signal of said set of control signals comprises a measured location information associated with a location of a vehicle, wherein a vehicle suspension damper is coupled with a frame of said vehicle, wherein at least a second control signal of said set of control signals comprises measured environmental information;accessing a set of date values;comparing said measured environmental information with predetermined environmental threshold values;monitoring a state of at least one valve within said at least one vehicle suspension damper, wherein said state controls a damping force within said at least one vehicle suspension damper;based on said measured location information, said set of date values and said comparing, determining a control mode for said at least one vehicle suspension damper; andaccording to said control mode and based on said monitoring, regulating damping forces within said at least one vehicle suspension damper by actuating said at least one valve to adjust to a desired state, such that a tilt of said frame is reduced.. A non-transitory computer readable storage medium having stored thereon, computer-executable instructions that, when executed by a computer, ...

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Номер записи: 45
04-02-2021 дата публикации

METHOD AND SYSTEM FOR QUANTIFYING DYNAMIC RESPONSE CHARACTERISTICS OF A REAL-TIME DAMPER

Номер: US20210033494A1
Автор: OBLIZAJEK KENNETH L.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method for quantifying dynamic response characteristics of a real-time damper includes positioning the damper between a stationary member and a moveable member of a shock press having a force transducer, and transmitting motion control signals to the shock press, via a test controller, to stroke the moveable member and cause the damper to move with a constant velocity between extremes of stroke. A test drive signal is transmitted to the damper for a calibrated test duration. The test drive signal has a calibrated discrete frequency, frequencies, or a frequency sweep range. The method includes measuring, via the force transducer, a force component of the damper while transmitting the test drive signal, and quantifying the response characteristics of the damper over the test duration, including recording the response characteristics in a memory device. A test system includes a shock press, force transducer, and test controller. 1. A method for quantifying dynamic response characteristics of a real-time damper , the method comprising:positioning the real-time damper between a stationary member and a moveable member of a shock press having a force transducer;transmitting motion control signals to the shock press, via a test controller, to thereby stroke the moveable member and the real-time damper with a constant velocity between consecutive extremes of stroke;transmitting a test drive signal to the real-time damper for a calibrated test duration, via the test controller, wherein the test drive signal has a calibrated test frequency, dwell points at multiple calibrated frequencies, or a swept range of test frequencies;measuring, via the force transducer, a force component along a longitudinal axis of the real-time damper while transmitting the test drive signal; andquantifying the dynamic response characteristics of the real-time damper over the calibrated test duration, as a quantified dynamic response, including recording the dynamic response characteristics in a ...

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Номер записи: 46
09-02-2017 дата публикации

METHOD FOR CONTROLLING A SUSPENSION SYSTEM

Номер: US20170036504A1
Автор: SCHINDLER ANDREAS
Принадлежит: Audi AG

A method for controlling an active suspension system which includes at least on spring and at least one damper as actuators and electromechanical controllers which are assigned to the actuators and can be either operated as a generator or as a motor. The method includes subtracting a value for an amount of electrical energy converted by the suspension system in a driving maneuver from an actual value of electrical energy stored in the electrical energy storage, thereby forming a differential value; comparing the differential value with at least one threshold value; when the differential value is greater than a maximal threshold value and at least a first one of electromechanical controllers is operated as a generator, operating at least one second one of the electromechanical controllers as a motor, wherein at least a portion of electrical energy which is generated by the at least one first electromechanical controller is simultaneously converted by the at least one second electromechanical controller into mechanical energy 110.-. (canceled)11. A method for controlling an active suspension system of a motor vehicle said method comprising:providing an active suspension system having actuators and electromechanical controllers, said actuators including at least one spring and at least one damper, wherein a respective one of the electromechanical controllers is assigned to each one of the actuators and cooperates with the one of the actuators, each of the electromechanical controllers being connected with at least one electrical energy storage of the motor vehicle via an onboard network of the motor vehicle;during a driving maneuver of the motor vehicle operating at least one of the electromechanical controllers either as a generator or as a motor, wherein when the least one electromechanical controller is operated as a generator the at least one electromechanical controller during the driving maneuver generates electrical energy, whose amount has a negative value, ...

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Номер записи: 47
08-02-2018 дата публикации

Method Of Operating A Motor Vehicle, And Motor Vehicle

Номер: US20180037080A1
Автор: ACKERMANN Norbert, BAALMANN Helmut, FÖRSTER Andreas, GREGER Sven, HEYN Steffen, Kirchner Holger, KRÜGER Sven Philip, MANGER Thomas, MARQUAR Hendrick, MAURISCHAT Christian, RAPPELT Stefen, Schwarz Alexander, SEILER Jens, THOMAE Achim, TRIEBEL Michael
Принадлежит:

A method of operating a motor vehicle with a chassis system comprising at least two, preferably four vibration damper includes carrying out a body control and a wheel control with the chassis system, and controlling the energy supply for the chassis system via an energy control arrangement. A motor vehicle performing the method is also disclosed. 114-. (canceled)15162345. A method of operating a motor vehicle () with a chassis system () having at least two vibration dampers ( , , , ) , the method comprising the following steps:{'b': '6', 'carrying out a body control and a wheel control with the chassis system ();'}providing an energy control arrangement; and{'b': 6', '7, 'controlling the energy supply for the chassis system () with the energy control arrangement ().'}16. The method according to claim 15 , wherein the energy consumption of the chassis system is limited.17. The method according to claim 15 , additionally comprising the step of predetermining a maximum value for a peak load and a predetermining a maximum value for a continuous load.18. The method according to claim 17 , comprising using a value between 400 W and 600 W as maximum value for the peak load.19. The method according to claim 17 , comprising using a value between 100 W and 300 W as maximum value for the continuous load.20102012141661020. The method according to claim 15 , comprising distributing the available energy amount ( claim 15 , ) when the energy requirement ( claim 15 , claim 15 , ) of the chassis system () exceeds the available energy amount ( claim 15 , ) or a maximum value.211020. The method according to claim 15 , comprising making available the available energy amount ( claim 15 , ) first for the wheel control and then for the body control.22. The method according to claim 15 , comprising using claim 15 , on the average claim 15 , of the available energy 5% to 15% for the wheel control and 85% to 95% for the body control.23. The method according to claim 15 , comprising carrying ...

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Номер записи: 48
11-02-2016 дата публикации

SHOCK ABSORBER AND VEHICLE USING THE SAME

Номер: US20160040742A1
Автор: TAKIGUCHI Kunio, YAMASHITA MIKIO
Принадлежит:

A minimum length-side property in which an extension-side damping coefficient signifies a hard state in a range (Aa) where the piston rod enters further inside the cylinder than a minimum length-side predetermined position (Sa), and a maximum length-side property in which the extension-side damping coefficient signifies a soft state in a range (Aa) where the piston rod extends further outside the cylinder than a maximum length-side predetermined position (Sa) are included. An extension-side damping force property between the minimum length-side predetermined position (Sa) and the maximum length-side predetermined position (Sa) includes a part (Sa to Sa, Sa to Sa) in which a damping coefficient change rate with respect to a stroke of the piston rod is large and a part (Sa to Sa) in which the damping coefficient change rate is small. At least when the piston rod strokes to the extension side from the minimum length-side predetermined position (Sa), the damping coefficient change rate is allowed to be large. 1. A shock absorber comprising:a cylinder in which a working fluid is sealed;a piston slidably fitted into the cylinder and configured to divide the inside of the cylinder into two chambers;a piston rod connected to the piston and extending toward the outside of the cylinder;a communication passage configured to cause the two chambers to communicate and configured to allow the working fluid to flow between the two chambers according to movement of the piston; anda damping force generating device installed at the communication passage and configured to limit a flow of the working fluid generated by movement of the piston to generate a damping force, wherein: a minimum length-side property in which an extension-side damping coefficient signifies a hard state in a range where the piston rod enters further inside the cylinder than a minimum length-side predetermined position,', 'a maximum length-side property in which the extension-side damping coefficient signifies a ...

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Номер записи: 49
09-02-2017 дата публикации

HYDRAULIC SHOCK ABSORBER WITH COMPRESSION FILTERING

Номер: US20170037923A1
Автор: Sirven Francois, Sirven Jacques, Sirven Marc, Sirvin Aude
Принадлежит:

The invention relates to a shock absorber (), in particular for a motor vehicle, which comprises: a cylinder () containing a hydraulic fluid; a main piston () actuated by a rod (), defining in the cylinder a first main chamber () and a second main chamber (), the second main chamber containing the rod; a hydraulic fluid vessel (); and a valve () placed in the flow of the hydraulic fluid between the first main chamber and the second main chamber or between the first main chamber and the vessel. The valve comprises a mobile gate () engaging with a seat (), a spring () tending to urge the gate against the seat thereof, and a mobile valve piston (), defining a first valve chamber () and a second valve chamber () in the valve, said mobile valve piston being capable of compressing the spring and closing the gate. The shock absorber also includes a control restriction () mounted in the flow of the hydraulic fluid from the first main chamber () during a compression movement, the control restriction being capable of generating a pressure difference acting on the respective surfaces of the mobile valve piston in a direction that tends to compress the spring during a compression movement and a means () for slowing the movement of the mobile valve piston (). 112435624111413201778188219831551778. A shock absorber () , notably for a motor vehicle , comprising a cylinder () containing a hydraulic fluid , a main piston () actuated by a rod () , defining within the cylinder a first main chamber () and a second main chamber () , the second main chamber containing the rod , a reservoir of hydraulic fluid () and a valve () placed in the flow of hydraulic fluid between the first main chamber and the second main chamber or between the first main chamber and the reservoir , the valve comprising a mobile shutter () collaborating with a seat () , a spring () tending to press the valve shutter onto its seat , and a mobile valve piston ( , ) defining within the valve a first valve chamber ( , ...

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Номер записи: 50
24-02-2022 дата публикации

Compensation of the Thermal Effect in a Vehicle Suspension System

Номер: US20220055435A1
Автор: Fabio Cotto, Giordano Greco, Marco DI VITTORIO, Piero Antonio Conti, Simone MARCHETTI, Walter Bruno
Принадлежит: Marelli Suspension Systems Italy SpA

A method for controlling the damping characteristic of a shock absorber of a vehicle, particularly for compensating the variation of the operating temperature of the shock absorber, in an active or semi-active suspension system. The compensation of the variation of the operating temperature of the shock absorber takes place by: estimating a mechanical power dissipated in heat by the shock absorber; estimating a thermal power exchanged by the shock absorber with the environment; evaluating the current operating temperature of the shock absorber as a function of the dissipated mechanical power and of the thermal power exchanged with the environment; and controlling the driving current of the control valve of the shock absorber according to a shock absorber reference model indicating a relationship between the damping force of the shock absorber, the operating temperature of the shock absorber and the driving current of the control valve.

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Номер записи: 51
24-02-2022 дата публикации

INTERNAL BYPASS SHOCK ABSORBER

Номер: US20220056976A1
Автор: Anderson Jake R.
Принадлежит: Raptor Performance Shocks

A shock absorber is provided that includes a shock body and a shaft assembly. The shock body has an inner chamber. The inner chamber is defined by a cylindrical interior surface. At least one groove is formed in the interior surface within at least one select length of the shock body. A piston of the shaft assembly is received within the inner chamber of the shock body. The piston includes valving to allow dampening matter that is received within the inner chamber to pass through the piston to allow the piston to move within the inner chamber. The at least one groove that is formed within the interior surface is configured to allow at least some of the dampening matter to bypass the valving of the piston to allow the piston to move through the at least one select length with less resistance. 1. A shock absorber comprising:a shock body of a mono tube shock absorber having an inner chamber, the inner chamber defined by a cylindrical interior surface of the shock body, at least one groove formed in the interior surface of the shock body within at least one select length of the shock body; anda piston of a shaft assembly of the mono tube shock absorber received within the inner chamber of the shock body, the at least one groove configured to allow dampening material to pass along a side of the piston within the at least one groove as the piston moves along the at least one select length of the shock body.2. The shock absorber of claim 1 , further comprising:the piston including valving to allow dampening matter that is received within the inner chamber to pass through the piston to allow the piston to move within the inner chamber of the shock body, the at least one groove formed within the interior surface being configured to allow at least some of the dampening matter to bypass the valving of the piston to allow the piston to move along the at least one select length of the shock body including the at least one groove with less resistance than is encountered with the ...

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Номер записи: 52
06-02-2020 дата публикации

SHOCK ABSORBER

Номер: US20200039313A1
Автор: HAMSO Vegard, Marking John
Принадлежит: Fox Factory, Inc.

A shock absorber including: a first cylinder having an interior, first and second ends and defining an axis, wherein the interior includes a damping fluid chamber and a damping piston movably mounted therein for movement between the first and second ends, wherein the damping piston is mounted on a first end of a shaft, wherein the first end of the shaft is movably retained within the interior of the first cylinder; first and second bypass openings configured for opening into the damping fluid chamber at first and second axially spaced-apart positions; a bypass channel fluidly coupling the first and second bypass openings; a fluid metering valve; and a floating piston dividing a portion of the shock absorber into a gas chamber and the reservoir chamber, wherein the fluid metering valve and the floating piston define the reservoir chamber there between. 1. A shock absorber comprising:a cylinder having an interior and a cylindrical axis, said cylinder having a first end and a second end, said first end disposed separated from said second end along said cylindrical axis, wherein said interior comprises a damping fluid chamber and a damping piston, said damping piston mounted on a first end of a shaft, wherein said first end of said shaft is retained within said interior of said cylinder and movable along at least a portion of said cylindrical axis such that said damping piston is movable within said interior of said cylinder between said first end and said second end;a first bypass opening configured for opening into said damping fluid chamber at a first axial position of said cylinder;a second bypass opening configured for opening into said damping fluid chamber at second axial position of said cylinder, said first axial position and said second axial position being spaced apart from each;a bypass channel fluidly coupling said first bypass opening and said second bypass opening;a reservoir chamber;a gas chamber;a floating piston disposed separating said gas chamber and ...

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Номер записи: 53
06-02-2020 дата публикации

VEHICLE STATE ESTIMATION DEVICE, CONTROL DEVICE, SUSPENSION CONTROL DEVICE, AND SUSPENSION DEVICE

Номер: US20200039314A1
Автор: IZAWA Masaki, MINAKUCHI Yuichiro
Принадлежит:

It is an object of the present invention to suitably estimate a state of a vehicle. A vehicle state estimation section () includes: a main computation section () configured to carry out linear computation with respect to a state amount related to a state of a vehicle; and a tire model computation section () configured to carry out nonlinear computation with direct or indirect reference to at least part of a result of the linear computation carried out by the main computation section (). 1. An in-vehicle vehicle state estimation device configured to estimate a state of a vehicle , the in-vehicle vehicle state estimation device comprising a vehicle model computation section configured to carry out computation with use of a vehicle model , a linear computation section configured to calculate one or more output values by carrying out, with reference to one or more input values, linear computation with respect to a state amount related to the state of the vehicle; and', 'a nonlinear computation section configured to carry out nonlinear computation with direct or indirect reference to at least part of a result of the linear computation carried out by the linear computation section,, 'the vehicle model computation section includingthe state amount related to the state of the vehicle including a sprung speed of the vehicle, a sprung angular speed of the vehicle, and an unsprung speed of a wheel.2. An in-vehicle vehicle state estimation device configured to estimate a state of a vehicle , the in-vehicle vehicle state estimation device comprising a vehicle model computation section configured to carry out computation with use of a vehicle model , a linear computation section configured to calculate one or more output values by carrying out, with reference to one or more input values, linear computation with respect to a state amount related to the state of the vehicle; and', 'a nonlinear computation section configured to carry out nonlinear computation with direct or indirect ...

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Номер записи: 54
07-02-2019 дата публикации

Vibration damper arrangement

Номер: US20190040927A1
Автор: Joachim Funke
Принадлежит: Hitachi Automotive Systems Europe GmbH

The invention relates to a vibration damper arrangement, in particular for damping compression and rebound forces on motor vehicles, which comprises a pressure medium cylinder (1), in which a piston (2) with a piston rod (3) is guided axially displaceably, which piston (2) divides the pressure medium cylinder (1) into a compression chamber (4) and a rebound chamber (5), a gas pressure accumulator (8) also being provided for volume compensation of the piston rod (3), which gas pressure accumulator (8) is connected to the compression chamber (4) by way of at least one first check valve (6) which can open toward the compression chamber (4), and a second check valve (7) which can open toward the rebound chamber (5) and, parallel thereto, at least one first controllable operating valve (12) being provided between the compression chamber (4) and the rebound chamber (5).

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Номер записи: 55
12-02-2015 дата публикации

Switchable Mount System For A Vehicle And Methods For Controlling The System

Номер: US20150046031A1
Автор: Ebert Stephen D., Gagliano Charles J., Igami Hajime, Kern John Louis, McCain Daniel S., Plank Dennis J., STEINMEYER Christopher L.
Принадлежит: HONDA MOTOR CO., LTD.

A switchable mount system includes a switchable mount and an electronic control unit for switching the switchable mount between a first damping mode and a second damping mode. A method for controlling the switchable mount includes controlling the mount according to vehicle speed information, engine torque information, variable cylinder management information, and brake information. At least one of the damping modes may be tuned to damp vibrations approximately in the range approximately between 30 Hz and 60 Hz. 1. A method for controlling a switchable mount in a motor vehicle , comprising:receiving a vehicle speed;receiving an engine torque;receiving a brake status;receiving a variable cylinder management operating mode;retrieving a predetermined engine torque;retrieving a predetermined vehicle speed;comparing the vehicle speed with the predetermined engine speed;comparing the engine torque with the predetermined engine torque;switching the switchable mount between a first damping mode and a second damping mode according to the brake status, the variable cylinder management operating mode, the comparison of the vehicle speed with the predetermined engine speed, and the comparison of the engine toque with the predetermined engine torque; andwherein the first damping mode and the second damping mode are configured to damp substantially different ranges of frequencies.2. The method according to claim 1 , wherein the first damping mode is configured to damp lower frequencies than the second damping mode.3. The method according to claim 1 , wherein the first damping mode is associated with frequencies approximately in the range between 0 Hz and 30 Hz.4. The method according to claim 3 , wherein the first damping mode is associated with frequencies approximately in the range between 10 Hz and 20 Hz.5. The method according to claim 1 , wherein the second damping mode is associated with frequencies approximately in the range between 30 Hz and 60 Hz.6. The method according ...

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Номер записи: 56
18-02-2016 дата публикации

RIDE PERFORMANCE OPTIMIZATION IN AN ACTIVE SUSPENSION SYSTEM

Номер: US20160046166A1
Автор: BULAT Benjamin, Butler Darrell Erick, HOFFMANN Uwe, JAMAIL Louis Joseph, NORTON Russ Lee, RUSSELL David Michael, SALIB Albert Chenouda, SUERMANN Marc, SUTER William Gregory
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

An active vehicle suspension system includes an active damping mechanism operatively coupled to a vehicle wheel and configured for controlling a damping force applied to the wheel responsive to a control signal. A controller is operatively coupled to the damping mechanism and configured for generating a control signal to the damping mechanism responsive to velocity of the wheel in a downward vertical direction. At least one of a timer threshold and velocity threshold, used to determine whether a vehicle wheel has encountered a depression in a road surface, may be varied on a basis of a speed of the vehicle. A damping mechanism for a rear wheel of a vehicle may be controlled on a basis of how a damping mechanism for a front wheel is controlled. 1. A method of controlling a vehicle suspension for a wheel via a controller , the method comprising:repeatedly calculating a vertical velocity of the wheel until the vertical velocity exceeds a first velocity threshold;in response to the vertical velocity exceeding the first velocity threshold, initiating a timer while repeatedly recalculating the vertical velocity of the wheel until the recalculated vertical velocity exceeds a second velocity threshold; andin response to the recalculated vertical velocity exceeding the second velocity threshold before the timer exceeds a first time threshold, increasing a damping level of the suspension;wherein at least one of the velocity thresholds and the first time threshold is varied on a basis of a speed of the vehicle.2. The method of claim 1 , wherein the first time threshold is varied on the basis of the speed of the vehicle by decreasing the first time threshold as the speed of the vehicle increases.3. The method of claim 1 , wherein the velocity thresholds are varied on the basis of the speed of the vehicle by increasing the velocity thresholds as the speed of the vehicle increases.4. The method of claim 1 , wherein the adjusting the vehicle suspension to increase the damping ...

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Номер записи: 57
15-02-2018 дата публикации

TWIN TUBE DAMPER WITH REMOTE GAS RESERVOIR

Номер: US20180043742A1
Автор: Cox Christopher Paul
Принадлежит: Fox Factory, Inc.

A damper is provided having a twin tube construction interconnected to a gas reservoir. The connection of each of the inner and outer volumes of the twin tube to the gas reservoir is independently valved, and each of these valves are independently settable to change the differential pressure thereacross at which they open. The damper provides flow passages directly from the inner and outer volumes to enable flow form the compression to rebound sides thereof, as well as through the valved connections to the gas reservoir and at least one valved opening in the damper piston. 1. A fluid damper comprising:an inner tube forming an inner fluid volume;an outer tube forming an outer fluid volume;a plurality of flow passages extending through said inner tube to enable fluid communication between said inner fluid volume and said outer fluid volume; a fluid portion;', 'a gas portion; and', 'a floating piston separating said fluid portion and said gas portion;, 'a remote reservoir in fluid communication with said inner fluid volume and said outer fluid volume, said remote reservoir comprising a first flow passage extending between said inner fluid volume and said fluid portion of said remote reservoir;', 'a second flow passage extending between said outer fluid volume and said fluid portion of said remote reservoir; and', 'at least one valve interposed in at least one of said first flow passage and said second flow passage, wherein said at least one valve controls fluid flow through said at least one of said first flow passage and said second flow passage; and, 'a valved interconnection fluidically coupling said remote reservoir with said inner fluid volume and said outer fluid volume, said valved interconnection comprisinga damping piston moveable within said inner tube and connected to a shaft extending outwardly of said inner tube through a sealed end thereof, movement of said damping piston enabling fluid to flow between one side of said damping piston and said fluid ...

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Номер записи: 58
03-03-2022 дата публикации

ADJUSTABLE HYDRAULIC SUSPENSION DAMPER

Номер: US20220063367A1
Автор: Wilber Alan Jeffrey
Принадлежит: AFCO Performance Group, LLC

A hydraulic damper with one end connected to the body of a vehicle and a second end connected to a suspension system of a vehicle. The mechanism allows for multiple hydraulic-fluid metering valve positions to control piston resistance based on a variable pressure input using pressurized gas. The use of compressed gas to mechanically control a valve position allows changes to the piston resistance to be made quickly and to be increased or decreased as desired. The hydraulic damper features a control piston which in turn mechanically controls a valve needle within a hydraulic suspension piston. The position of the valve needle controls the damping characteristics of the suspension piston. When the control piston moves, the position of the valve needle is proportionally adjusted.

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Номер записи: 59
03-03-2022 дата публикации

Damper assembly including valve connectors having one-way valves

Номер: US20220065323A1
Автор: Alexander Alvarez Zendoia
Принадлежит: Driv Automotive Inc

A damper assembly includes an outer tube and an inner tube disposed in the outer tube defining a reserve chamber. The inner tube defines an inner volume. A piston is slidably disposed in the inner tube and divides the inner volume into a rebound working chamber and a compression working chamber. A rebound valve is fluidly connected to the rebound working chamber and the reserve chamber, and a compression valve is fluidly connected to the reserve chamber and the compression working chamber. A rebound valve connector fluidly connects the rebound valve and the rebound working chamber and a compression valve connector fluidly connects the compression valve and the compression working chamber. The rebound valve connector includes a one-way valve from the reserve chamber to the rebound working chamber and the compression valve connector includes a one-way valve from the reserve chamber to the compression working chamber.

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Номер записи: 60
14-02-2019 дата публикации

Vibration Damper, Method For Operating A Vibration Damper, Control Device And Motor Vehicle

Номер: US20190047350A1
Автор: BAALMANN Helmut, FÖRSTER Andreas, HEYN Steffen, SIMON Eberhard, THOMAE Achim
Принадлежит:

A vibration damper with a damping force adjusting device and a height adjusting device for changing the axial position of a piston of the vibration damper, characterized in that the damping force adjusting device is adjusted depending on at least one operating parameter of the height adjusting device, and when there is a change in the at least one operating parameter there is also a change in at least one operating parameter of the damping force adjusting device. A method of operating a vibration damper with a controller and a motor vehicle including such vibration damper and controller is also disclosed. 116-. (canceled)17. A vibration damper comprising:a damping force adjusting device and a height adjusting device for changing the axial position of a piston of the vibration damper, the damping force adjusting device and the height adjusting device constructed to be operated by at last one operating parameter;the damping force adjusting device constructed to be adjusted depending on the at least one operating parameter of the height adjusting device, and wherein, when there is a change in the at least one operating parameter of the height adjusted device, there is also a change in the at least one operating parameter of the damping force adjusting device.18. The vibration damper according to claim 17 , wherein the damping force adjusting device comprises at least one valve with a variable flow resistance.19. The vibration damper according to claim 17 , additionally comprising a working cylinder claim 17 , and wherein the height adjusting device comprises a hydraulic pump which is hydraulically connected to the working cylinder of the vibration damper.20. The vibration damper according to claim 17 , wherein the at least one operating parameter of the height adjusting device is a pressure generated by the height adjusting device.21. The vibration damper according to claim 20 , wherein the at least one operating parameter of the damping force adjusting device is an ...

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Номер записи: 61
14-02-2019 дата публикации

2-WAY SOFT OPENING VALVE ARRANGEMENT FOR A SHOCK ABSORBER

Номер: US20190048967A1
Автор: Hovén Arnold
Принадлежит:

Valve arrangement for a shock absorber is described, comprising a valve housing () having a first () and a second port (), a pilot chamber () being in fluid communication with the first () and/or second port (), wherein a pilot pressure (Pp) is defined by a hydraulic pressure in the pilot chamber (). The arrangement further comprises a main valve member () being axially movably arranged in the valve housing () and being arranged to interact with a main valve seat member () in order to restrict a main fluid flow between the first () and second ports () in response to the pilot pressure (Pp) acting on the main valve member (). Moreover, the main valve seat member () is movable between a first compression stroke position and a second rebound stroke position so that, during the compression stroke, the main fluid flow is restricted at a first restriction (R) and a cooperating serially arranged second restriction (R), and during the rebound stroke, the main fluid flow is restricted at a third restriction (R) and a cooperating serially arranged fourth restriction (R). 21212. The valve arrangement according to claim 1 , wherein the first restriction (R) is arranged upstream relative the second restriction (R) claim 1 , in view of the compression fluid flow direction and the first restriction (R) has a smaller orifice (O) than the second restriction's (R) orifice (O) in at least an initial stroke and when being at least partly opened.33434. The valve arrangement according to claim 1 , wherein the third restriction (R) is arranged upstream relative the fourth restriction (R) claim 1 , in view of the rebound fluid flow direction claim 1 , and wherein the third restriction (R) has a smaller orifice (O) than the fourth restriction's (R) orifice (O) in at least an initial stroke and when being at least partly opened.412. The valve arrangement according to claim 1 , comprising a fifth restriction (R′) being arranged in series with the second restriction (R).5143. The valve ...

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Номер записи: 62
25-02-2021 дата публикации

Vibration Damper Having Adjustable Damping Valve

Номер: US20210054900A1
Автор: Bernd Zeissner, Lukas RUHMANN, Manuel Gumpert, Stefan Schmitt, Thomas Manger, Thomas Solf
Принадлежит: ZF FRIEDRICHSHAFEN AG

A vibration damper includes at least one adjustable damping valve having an outer housing connected to one end of an outer receptacle of the vibration damper. A longitudinal axis of the adjustable damping valve and a longitudinal axis of the vibration damper run parallel. The outer housing of the adjustable damping valve has a clamping surface for an axle connection part.

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Номер записи: 63
13-02-2020 дата публикации

INTERNAL BYPASS SHOCK ABSORBER

Номер: US20200049221A1
Автор: Anderson Jake R.
Принадлежит: Raptor Performance Shocks, LLC

A shock absorber is provided that includes a shock body and a shaft assembly. The shock body has an inner chamber. The inner chamber is defined by a cylindrical interior surface. At least one groove is formed in the interior surface within at least one select length of the shock body. A piston of the shaft assembly is received within the inner chamber of the shock body. The piston includes valving to allow dampening matter that is received within the inner chamber to pass through the piston to allow the piston to move within the inner chamber. The at least one groove that is formed within the interior surface is configured to allow at least some of the dampening matter to bypass the valving of the piston to allow the piston to move through the at least one select length with less resistance. 1. A shock absorber comprising:a shock body having an inner chamber, the inner chamber defined by a cylindrical interior surface of the shock body, at least one groove formed in the interior surface of the shock body within at least one select length of the shock body; anda piston of a shaft assembly received within the inner chamber of the shock body, the piston including valving to allow dampening matter that is received within the inner chamber to pass through the piston to allow the piston to move within the inner chamber of the shock body, the at least one groove formed within the interior surface being configured to allow at least some of the dampening matter to bypass the valving of the piston to allow the piston to move along the at least one select length of the main shock body including the at least one groove with less resistance than is encountered with the dampening matter only flowing through the valving.2. The shock absorber of claim 1 , wherein the at least one groove forms a helix shape within the interior surface of the inner chamber of the shock body.3. The shock absorber of claim 1 , wherein the at least one groove includes a plurality of spaced grooves that ...

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Номер записи: 64
03-03-2016 дата публикации

Vibration Damper

Номер: US20160059656A1
Автор: Adams Dorothea, Bruns Matthias, Funke Joachim, HERRMANN Nils, JOHNSTON Lucien
Принадлежит:

The invention relates to a vibration damper for damping spring retraction and/or spring extension forces on motor vehicles, which includes an inner pressure medium cylinder (), in which a piston () with a piston rod () is axially slidably arranged, which divides the inner pressure medium cylinder () into a retraction chamber () and an extension chamber (), in which an electrorheological fluid as a pressure medium is contained, wherein the retraction chamber () and the extension chamber () is connected through at least one throttle gap () between the inner cylinder tube () and an electrode tube () arranged coaxially thereto, and that the electrode tube () is surrounded coaxially by a spaced-apart further outer tube (), which together with the electrode tube () forms a gas pressure chamber (), which is connected through a bottom valve () with the retraction chamber (). The invention is characterized in that at least two axially linear or helically shaped seal means () are arranged between the inner cylinder tube () and the electrode tube (), wherein the seal means divide the throttle gap () into at least two similar valve partial gaps (), and that a first throttled non-return valve () which opens toward the gas pressure chamber () is arranged between the extension chamber () and the gas pressure chamber (). 112314545617787910411176121314959. Vibration damper for damping spring retraction and/or spring extension forces on motor vehicles , which includes an inner pressure medium cylinder () , in which a piston () with a piston rod () is axially slidably arranged , which divides the inner pressure medium cylinder () into a retraction chamber () and an extension chamber () , in which an electrorheological fluid as a pressure medium is contained , wherein the retraction chamber () and the extension chamber () is connected through at least one throttle gap () between the inner cylinder tube () and an electrode tube () arranged coaxially thereto , and that the electrode tube ...

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Номер записи: 65
03-03-2016 дата публикации

SHOCK ABSORBER

Номер: US20160059663A1
Автор: MASAMURA Tatsuya, Teraoka Takashi
Принадлежит: KAYABA INDUSTRY CO., LTD.

A shock absorber includes a suction passage allowing flow only from a reservoir towards a pressure side chamber, a rectifying passage allowing flow only from the pressure side chamber towards an expansion side chamber, and a damping force variable valve allowing flow only from the expansion side chamber towards the reservoir. Large, and small and outer peripheral chambers in a bottom housing sandwich a free piston. The small chamber communicates the outer peripheral chamber with the expansion side chamber. The large chamber communicates with the pressure side chamber through first and second valves. During a contraction in which a piston moves downward, even in a uniflow-type shock absorber in which pressure in the expansion side chamber and the pressure side chamber become equal, the free piston can move downward due to a difference in pressure-receiving areas. Even if a stretching speed reaches a high range, the first and second valves are opened, and damping force is reduced. 1. A shock absorber , comprising:a cylinder;a piston slidably inserted into the cylinder, the piston defining an expansion side chamber and an pressure side chamber inside the cylinder;a reservoir;a suction passage that allows only a flow of liquid from the reservoir toward the pressure side chamber;a rectifying passage that allows only a flow of liquid from the pressure side chamber toward the expansion side chamber;a damping force adjusting unit that allows only a flow of liquid from the expansion side chamber toward the reservoir, the damping force adjusting unit being configured to change resistance provided to the flow of liquid;a housing that includes a pressure chamber including a small-cross-sectional-area portion and a large-cross-sectional-area portion;a free piston that includes: a small-piston portion slidably inserted into the small-cross-sectional-area portion of the pressure chamber; and a large-piston portion slidably inserted into the large-cross-sectional-area portion of ...

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Номер записи: 66
03-03-2016 дата публикации

ACTIVE SUSPENSION WITH STRUCTURAL ACTUATOR

Номер: US20160059664A1
Автор: Alexandridis Alexander Apstolos, Anderson Zackary Martin, Lewis David Michael, Tucker Clive, Wendell Ross J.
Принадлежит: LEVANT POWER CORPORATION

An active suspension system is configured in a strut arrangement. The active suspension system comprises a hydraulic actuator and a hydraulic pump/electric motor assembly, wherein the actuator movement is preferably in lockstep with the hydraulic motor-pump and electric motor-generator combination. Torque in the electric motor is instantaneously controlled by a controller to create an immediate force change on the hydraulic actuator. The hydraulic actuator is configured so that it can be used as a strut whereby the actuator has sufficient structural rigidity to carry the applied suspension loads while capable of supplying damper forces in at least three quadrants of the force velocity graph of the suspension actuator operation. Embodiments disclosed include low cost active suspension systems for a MacPherson strut application. 1. An active suspension system comprising:a hydraulic motor-pump with a first port and a second port;an actuator assembly comprising a first end, a second end, an internal volume which comprises a rebound volume and a compression volume, and a hollow piston rod with a first end attached to said piston, and a second end; anda reservoir at least partially filled with a compressible medium;wherein said rebound volume is separated from said compression volume by said piston, and said piston rod comprises a first conduit with a first end in fluid communication with said compression volume and a second end in fluid communication with said first port of said hydraulic motor-pump, and a second conduit with a first end in fluid communication with said rebound volume and a second end in fluid communication with said second port of said hydraulic motor-pump.2. The system of wherein said first end of said first conduit is in fluid communication with said compression volume through an opening in said piston.3. The system of wherein said first conduit is substantially cylindrical with a circular cross-section and located along the axis of said piston rod.4. ...

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Номер записи: 67
21-02-2019 дата публикации

DISTRIBUTED ACTIVE SUSPENSION SYSTEM WITH AN ELECTRICALLY DRIVEN PUMP AND VALVE CONTROLLED HYDRAULIC PUMP BYPASS FLOW PATH

Номер: US20190054788A1
Автор: Anderson Zackary Martin, BAVETTA Ryan, Jackowski Zachary J.
Принадлежит: ClearMotion, Inc.

A regenerative shock absorber that include a housing and a piston that moves at least partially through the housing when the shock is compressed or extended from a rest position. When the piston moves, hydraulic fluid is pressurized and drives a hydraulic motor. The hydraulic motor, in turn, drives an electric generator that produced electric energy. The electric energy may be provided to a vehicle, among other things. The regenerative shock absorber may also provide ride performance that comparable to or exceeds that of conventional shock absorbers. 1. A regenerative shock absorber comprising:a housing that includes a compression volume and an extension volume;a piston disposed in the housing and that in a first mode moves through at least a portion of a compression stroke to pressurize hydraulic fluid in the compression volume and that in a second mode moves at least partially through an extension stroke to pressurize hydraulic fluid in the extension volume;a hydraulic motor including a first port and a second port, the first port in fluid communication with the compression volume and the second port in fluid communication with the extension volume, wherein the hydraulic motor always moves in sync with the piston;a reservoir having a reservoir volume;one or more valves that in the first mode provide fluid communication between the second port of the hydraulic motor and the reservoir, and that in the second mode provide fluid communication between the first port of the hydraulic motor and the reservoir.262-. (canceled) This Application is a continuation of U.S. application Ser. No. 15/432,889, filed Feb. 14, 2017, which is a continuation of U.S. application Ser. No. 14/989,725, filed on Jan. 6, 2016, which is a continuation of U.S. application Ser. No. 14/458,711, filed on Aug. 13, 2014, which is a continuation of U.S. application Ser. No. 12/534,629, filed on Aug. 3, 2009, which is a continuation in part of U.S. application Ser. No. 12/104,800, filed on Apr. 17, ...

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Номер записи: 68
21-02-2019 дата публикации

SYSTEM AND METHOD FOR PLACING AN ACTIVE SUSPENSION SYSTEM IN A DEMONSTRATION MODE

Номер: US20190054789A1
Автор: MAKABE Takumi, Ricketts Brandon E., RITCHIE Seth A., SOVERN Jason A., WESTENDORF Dirk G.
Принадлежит:

System and method for operating an active suspension system of a vehicle includes actuating a switch on the vehicle, setting the active suspension system for the vehicle to a demonstration mode, setting a timer when the active suspension system is set to the demonstration mode, and setting the active suspension system for the vehicle to a normal operating mode after the timer reaches a predetermined time. Prior to expiration of the timer, the system and method determines a gear in which the vehicle is placed, determines whether an engine of the vehicle is running if the transmission gear of the vehicle is drive, reverse, or neutral, and determines a throttle angle of the vehicle if the engine is running. The active suspension system is set to a normal operating mode if the throttle angle is greater than a predetermined angle. An iterative process determines the status of the timer. 1. A method for operating an active suspension system for a vehicle , comprising the steps of:actuating a switch on the vehicle;setting the active suspension system for the vehicle to a demonstration mode;setting a timer when the active suspension system is set to the demonstration mode; andsetting the active suspension system for the vehicle to a normal operating mode after the timer reaches a predetermined time.2. The method of further comprising the step of:determining a gear in which a transmission of the vehicle is placed.3. The method of further comprising the step of:setting the active suspension system for the vehicle to a normal operating mode if the transmission gear of the vehicle is drive, reverse, or neutral.4. The method of further comprising the step of:determining whether an engine of the vehicle is running if the transmission gear of the vehicle is drive, reverse, or neutral.5. The method of further comprising the step of:setting the active suspension system for the vehicle to a normal operating mode if the engine is running.6. The method of further comprising the step of ...

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Номер записи: 69
01-03-2018 дата публикации

POSITION DEPENDENT DAMPER FOR A VEHICLE SUSPENSION SYSTEM

Номер: US20180056746A1
Автор: Dillman Patrick S., Ellifson Erik S., Rositch Aaron J., Sollenskog Robert K., Zuleger Jason J.
Принадлежит: Oshkosh Defense, LLC

A damper assembly for a vehicle suspension system includes a primary damper and a secondary damper. The secondary damper includes a housing having a wall that at least partially surrounds at least a portion of the primary damper, the volume between the wall and the primary damper defining a chamber, and the wall defines an aperture. The secondary damper also includes a piston positioned within the chamber, a conduit defining a flow path that includes the aperture, and a valve disposed along the flow path. The secondary damper is configured to provide a damping force that varies based on the position of the piston within the chamber. 1. A damper assembly for a vehicle suspension system , comprising:a primary damper; and a housing including a wall that at least partially surrounds at least a portion of the primary damper, the volume between the wall and the primary damper defining a chamber, wherein the wall defines an aperture;', 'a piston positioned within the chamber;', 'a conduit defining a flow path that includes the aperture; and', 'a valve disposed along the flow path,, 'a secondary damper, comprisingwherein the secondary damper is configured to provide a damping force that varies based on the position of the piston within the chamber.2. The damper assembly of claim 1 , wherein the wall defines a set of apertures claim 1 , the conduit defining the flow path between the set of apertures.3. The damper assembly of claim 2 , wherein the valve comprises a bidirectional flow valve configured to produce different damping forces based on the position and the travel direction of the piston.4. The damper assembly of claim 2 , wherein the wall defines a second set of apertures.5. The damper assembly of claim 4 , further comprising a second conduit forming a second flow path between the second set of apertures claim 4 , wherein the piston is configured such that movement thereof along the housing activates and deactivates the first flow path and the second flow path.6. The ...

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Номер записи: 70
02-03-2017 дата публикации

Active Damper System for a Vehicle

Номер: US20170057317A1
Автор: Schmidt Roland, SCHOLZ Hubert
Принадлежит:

An active damper system is provided for a vehicle, in particular a motor vehicle. It includes a damper unit with a cylinder, a piston which is guided in the cylinder, and a piston rod which is connected to the piston. The piston divides the cylinder into a first chamber and a second chamber, and the damper unit is designed to be arranged between a body and a wheel of the vehicle. The damper system also has a pump for changing the pressure in the two chambers and for moving the piston, a first valve, a second valve, which is connected to the first valve in series, a third valve, and a fourth valve, which is connected to the third valve in series. The first and second valve are connected in parallel to the third and fourth valve. A fluid-conductive first line leads to the first chamber between the first valve and the second valve, and a fluid-conductive second line leads to the second chamber between the third valve and the fourth valve. A low-pressure side of the pump is connected between the first valve and the fourth valve, and a pressure side of the pump is connected between the second valve and the third valve. The first valve, the second valve, the third valve, and the fourth valve can be switched in order to selectively block and release the flow of fluid. A control unit is provided for switching the four valves such that the pump rotates in the same direction when compressing and rebounding during an electromotor operation and a generator operation. 1. An active damper system for a vehicle , comprising:a damper unit having a cylinder, a piston which is guided in the cylinder, and a piston rod which is connected to the piston, the piston dividing the cylinder into a first chamber and a second chamber, and the damper unit being configured for arranging between a vehicle body and a wheel of the vehicle;a pump for changing pressures in the first and second chambers and for moving the piston;a first valve and a second valve which is connected in series with the ...

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Номер записи: 71
04-03-2021 дата публикации

STEERING CONTROL DEVICE AND STEERING DEVICE

Номер: US20210061041A1
Автор: Enomoto Nobuyuki, ISHIMARU Eishi, ISSHIKI Ken, TAGAMI Kyouichi
Принадлежит:

An embodiment of the present invention allows for application of an assist torque or reaction torque which causes a driver to feel less discomfort. An ECU () includes a rack shaft axial force estimating section () configured to estimate a rack shaft axial force with reference to a roll rate of a vehicle body. 1. A rack shaft axial force estimating device , configured to calculate an estimated value of a damping force of a suspension with reference to a roll rate of a vehicle body and estimate a rack shaft axial force on the basis of the estimated value of the damping force of the suspension.2. The rack shaft axial force estimating device as set forth in claim 1 , configured to estimate the rack shaft axial force claim 1 , additionally with reference to a damping coefficient-related value.3. The rack shaft axial force estimating device as set forth in claim 2 , configured to estimate the rack shaft axial force claim 2 , additionally with reference to a roll angle.4. The rack shaft axial force estimating device as set forth in claim 3 , comprising:a first rack shaft axial force estimating section configured to estimate a first rack shaft axial force on the basis of the roll rate and the damping coefficient-related value;a second rack shaft axial force estimating section configured to estimate a second rack shaft axial force on the basis of the roll angle; anda third rack shaft axial force estimating section configured to estimate a third rack shaft axial force with use of the first rack shaft axial force and the second rack shaft axial force.5. The rack shaft axial force estimating device as set forth in claim 2 , wherein:the damping coefficient-related value is a control variable for controlling the damping force of the suspension.6. The rack shaft axial force estimating device as set forth in claim 3 , wherein:the damping coefficient-related value is a control variable for controlling the damping force of the suspension.7. The rack shaft axial force estimating ...

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Номер записи: 72
20-02-2020 дата публикации

METHODS AND APPARATUS TO ADJUST VEHICLE SUSPENSION DAMPING

Номер: US20200055363A1
Автор: Bossio Geoffrey, Collins Daniel, Michener Jason Wallace, Paiva Chris, Sawarynski Tom, Thompson Steven
Принадлежит:

Methods and apparatus to adjust vehicle suspension damping are disclosed herein. An example apparatus includes a sensor interface to obtain wheel position information and vehicle speed information from sensors associated with wheels of a vehicle and obtain throttle position information. The apparatus further includes a parameter analyzer to determine a compression damping command based on the wheel position information, the vehicle speed information, and the throttle position information and an instruction generator to adjust a damping system of the vehicle based on the compression damping command. 1. An apparatus comprising: obtain wheel position information and vehicle speed information from sensors associated with wheels of a vehicle; and', 'obtain throttle position information;, 'a sensor interface to'}a parameter analyzer to determine a compression damping command based on the wheel position information, the vehicle speed information and the throttle position information; andan instruction generator to adjust a damping system of the vehicle based on the compression damping command.2. The apparatus of claim 1 , wherein the parameter analyzer is further to determine a vehicle response parameter based on vehicle characteristics and the vehicle speed information.3. The apparatus of claim 2 , wherein the vehicle characteristics include at least front and rear vehicle balance or vehicle speed sensitivity.4. The apparatus of claim 2 , wherein the parameter analyzer is further to determine a throttle response parameter based on the throttle position information and throttle characteristics.5. The apparatus of claim 4 , wherein the throttle characteristics include at least a dead zone determination or a throttle response rate.6. The apparatus of claim 4 , wherein the parameter analyzer is further to determine a base current command based on the vehicle speed information and a suspension command table.7. The apparatus of claim 6 , wherein the parameter analyzer is ...

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Номер записи: 73
01-03-2018 дата публикации

HYDRAULIC SHOCK-ABSORBER FOR A VEHICLE SUSPENSION

Номер: US20180058533A1
Автор: Bruno Walter, Conti Piero Antonio, Greco Giordano
Принадлежит:

The hydraulic shock-absorber comprises a hydraulic stop member having a cup-shaped body, which is adapted to be mounted in a compression chamber, and a plunger, mounted at an end of a rod of the shock-absorber so as to slide in the cup-shaped body when the shock-absorber moves towards the compression end-of-travel position. The cup-shaped body comprises a side wall and a bottom wall which define, along with the plunger, a working chamber in which a damping fluid of the shock-absorber is compressed by the plunger when the latter slides in the working chamber towards the bottom wall of the body. Axial channels are formed on the inner surface of the side wall of the body and allow the damping fluid to flow axially out of the working chamber when the plunger slides in the working chamber towards the bottom wall of the cup-shaped body. The axial channels extend parallel to a longitudinal axis (z) of the cup-shaped body and have a cross-section whose area decreases continuously along this axis (z) towards the bottom wall of the cup-shaped body. 1. A hydraulic shock-absorber for a vehicle suspension , comprising a first cylindrical tube , a rod which is arranged coaxially and projects partially from , the first cylindrical tube , and a piston attached to an end portion of the rod , the piston being slidably mounted in the first cylindrical tube and separating an inner volume of the first cylindrical tube into a rebound chamber and a compression chamber in which a damping fluid is contained , the shock-absorber further comprising a first valve assembly on the piston) , a second valve assembly on a bottom end of the compression chamber , and a hydraulic stop member which is mounted in the compression chamber and is adapted to operate during the compression stroke of the shock-absorber to hydraulically dissipate kinetic energy when the piston of the shock-absorber moves towards a compression end-of-travel position ,wherein the hydraulic stop member comprises a cup-shaped body ...

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Номер записи: 74
02-03-2017 дата публикации

PRESSURE DAMPING DEVICE

Номер: US20170058987A1
Автор: NAKANO Gota
Принадлежит: Showa Corporation

A pressure damping device includes a cylinder, a partitioning section, a flow channel formation section, a valve section a bypass channel and a throttle section. The flow channel formation section forms a flow channel, through which the fluid flows, in conjunction with a movement of the partitioning section. The valve section controls a flow of the fluid in the flow channel of the flow channel formation section. The bypass channel forms a flow of the fluid that bypasses the flow of the fluid flowing through the flow channel while opening the valve section. The throttle section that throttles the flow of the fluid through the bypass channel further on an outer side than the valve section with respect to the flow channel formation section. 1. A pressure damping device comprising:a cylinder that extends from one side toward another side and that houses a fluid;a partitioning section that is provided so as to be movable in an axial direction in the cylinder and that partitions a space in the cylinder into a first chamber and a second chamber;a flow channel formation section in which a flow channel, through which the fluid flows, is formed in conjunction with a movement of the partitioning section;a valve section that controls a flow of the fluid in the flow channel of the flow channel formation section;a bypass channel that forms a flow of the fluid that bypasses the flow of the fluid flowing through the flow channel while opening the valve section; anda throttle section that throttles the flow of the fluid through the bypass channel further on an outer side than the valve section with respect to the flow channel formation section.2. The pressure damping device according to claim 1 , further comprisinga protruding member that rotates by being driven in the axial direction by a driving section and that protrudes at a prescribed protrusion amount toward the bypass channel in accordance with an amount of rotation, whereinthe throttle section adjusts a throttle amount of ...

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Номер записи: 75
27-02-2020 дата публикации

ACTIVE VEHICLE SUSPENSION

Номер: US20200062067A1
Автор: "OShea Colin Patrick", Anderson Zackary Martin, Giovanardi Marco, Gorelik Vladimir, Leehey Jonathan R., Neil Patrick W., Sawyer Tyson David, Schneider Johannes, Tucker Clive, Wendell Ross J., Zuckerman Richard Anthony
Принадлежит: ClearMotion, Inc.

A method of on-demand energy delivery to an active suspension system is disclosed. The suspension system includes an actuator body, a hydraulic pump, an electric motor, a plurality of sensors, an energy storage facility, and a controller. The method includes disposing an active suspension system in a vehicle between a wheel mount and a vehicle body, detecting a wheel event requiring control of the active suspension; and sourcing energy from the energy storage facility and delivering it to the electric motor in response to the wheel event. 1. (canceled)2. A method of energy delivery to an active suspension system , comprising:providing an active suspension system in a vehicle, the active suspension system comprising a hydraulic pump and an electric motor, the hydraulic pump and electric motor being operatively coupled, one or more sensors, an energy storage facility, one or more bypass valves, a controller, and one or more active suspension actuators, each actuator comprising an actuator body, a compression volume, an extension volume, and a piston;detecting a road induced movement of a wheel of the vehicle with at least one of the one or more sensors;sending data representing the movement from the at least one of the one or more sensors to the controller;determining, at the controller, based on the data representing the movement, a first torque command to be applied to a shaft of the hydraulic pump;receiving a required amount of energy at the electric motor from the energy storage device;applying a first torque corresponding to the first torque command to the shaft of the hydraulic pump using at least a portion of the required amount of energy received thereby altering a pressure in at least one of the compression volume or the extension volume; andmodifying flow of hydraulic fluid to the hydraulic pump from at least one of the compression volume or the extension volume with at least one of the one or more bypass valves.3. The method of claim 2 , further comprising ...

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Номер записи: 76
27-02-2020 дата публикации

MAGNETIC INDUCTION ACTUATOR SUSPENSION SYSTEM

Номер: US20200062068A1
Автор: GABAY DOR, TRANGBAEK KLAUS
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A suspension system includes a first and second mass and an actuator connected with the first mass and with the second mass and configured to influence a relative movement between the first mass and the second mass. The actuator includes a tube, and a magnetic assembly disposed in the tube. The actuator is configured to generate a force between the magnetic assembly and the tube as a result of the relative movement between the two. A motor is configured to rotate the magnetic assembly relative to the tube to vary the force in a velocity-dependent relationship. The actuator may generate forces to resist or assist motion between the first and second masses. 1. A suspension system comprising:a first mass;a second mass; and a tube;', 'a magnetic assembly disposed in the tube, wherein the actuator is configured to generate a force between the magnetic assembly and the tube as a result of the relative movement; and', 'a motor configured to rotate the magnetic assembly relative to the tube to vary the force in a velocity-dependent relationship., 'an actuator connected with the first mass and with the second mass and configured to influence a relative movement between the first mass and the second mass, the actuator comprising2. The suspension system of claim 1 , further comprising a shaft extending into the tube claim 1 , wherein the motor is disposed outside the tube and is connected with the magnetic assembly through the shaft.3. The suspension system of claim 1 , wherein the magnetic assembly includes plural magnetic elements configured with polarities in alternating relation.4. The suspension system of claim 1 , wherein the magnetic element is configured to generate the force from a first force component that results from a longitudinal movement of the magnetic element relative to the tube and selectively from a second force component that results from a rotational movement of the magnetic element relative to the tube.5. The suspension system of claim 1 , wherein:the ...

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Номер записи: 77
27-02-2020 дата публикации

LOAD DEPENDENT DAMPER FOR A VEHICLE SUSPENSION SYSTEM

Номер: US20200062071A1
Автор: Sollenskog Robert K., Zuleger Jason J.
Принадлежит: Oshkosh Defense, LLC

A valve assembly for a vehicle suspension system includes a valve body, a first flow controller, a first plunger, a second flow controller, and a second plunger. The valve body defines a first inlet port, a first outlet port, a first chamber connected to the first inlet port and the first outlet port, a second chamber, a second inlet port, a second outlet port, a third chamber connected to the second inlet port and the second outlet port, and a fourth chamber. The first flow controller is positioned within the first chamber. The first plunger is positioned between the first chamber and the second chamber. The second flow controller is positioned within the third chamber. The second plunger is positioned between the third chamber and the fourth chamber. 1. A valve assembly for a vehicle suspension system , the valve assembly comprising: a first inlet port;', 'a first outlet port;', 'a first chamber connected to the first inlet port and the first outlet port;', 'a second chamber;', 'a second inlet port;', 'a second outlet port;', 'a third chamber connected to the second inlet port and the second outlet port; and', 'a fourth chamber;, 'a valve body defininga first flow controller positioned within the first chamber;a first plunger positioned between the first chamber and the second chamber;a second flow controller positioned within the third chamber; anda second plunger positioned between the third chamber and the fourth chamber.2. The valve assembly of claim 1 , wherein the valve body defines a spring port configured to receive pressurized gas claim 1 , wherein the second chamber and the fourth chamber are fluidly coupled together claim 1 , and wherein the second chamber and the fourth chamber are both fluidly coupled to the spring port.3. The valve assembly of claim 1 , wherein the valve body defines a first spring port and a second spring port claim 1 , wherein each of the first spring port and the second spring port is configured to receive pressurized gas claim 1 ...

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Номер записи: 78
09-03-2017 дата публикации

Patient Transport Apparatus For Transporting A Patient Over Disturbances In Floor Surfaces

Номер: US20170065474A1
Автор: Childs William D., Lambarth Clifford E., Nahavandi Kurosh, Patmore Kevin M., Paul Anish, Trepanier Jerald A.
Принадлежит: STRYKER CORPORATION

A patient transport apparatus for moving a patient from one location to another. The patient transport apparatus comprises a suspension system to limit discomfort to the patient when the patient transport apparatus moves over disturbances in floor surfaces. The suspension system comprises suspension devices such as a spring and/or a damper. The suspension system is operable in an energy-absorbing mode in which the suspension system absorbs energy as wheels move over the disturbances during transport or a lockout mode in which the suspension system is relatively more rigid as compared to the energy-absorbing mode. A control system operates to place the suspension system in one of the modes. 1. A patient transport apparatus for transporting a patient over disturbances in floor surfaces , said transport apparatus comprising:a support structure comprising a patient support surface to support the patient;wheels coupled to said support structure;an operator interface coupled to said support structure to enable an operator to transport the patient over the floor surfaces;a suspension system operable in a first mode and a second mode, said suspension system being configured in at least one of said modes to absorb energy as said wheels move over the disturbances in the floor surfaces during transport to limit energy transfer to said patient support surface thereby limiting discomfort to the patient; anda control system to place said suspension system in one of said modes.2. The transport apparatus of wherein said first mode is an energy-absorbing mode in which said suspension system absorbs energy as said wheels move over the disturbances in the floor surfaces during transport to limit energy transfer to said patient support surface thereby limiting discomfort to the patient and said second mode is a lockout mode in which said suspension system is relatively more rigid as compared to said energy-absorbing mode.3. The transport apparatus of wherein said suspension system has ...

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Номер записи: 79
11-03-2021 дата публикации

VEHICLE HAVING SUSPENSION WITH CONTINUOUS DAMPING CONTROL

Номер: US20210070124A1
Автор: Brady Louis J., Franker Steven R., Nysse Aaron J., Scheuerell Alex R.
Принадлежит: Polaris Industries Inc.

A damping control system for a vehicle having a suspension located between a plurality of ground engaging members and a vehicle frame includes at least one adjustable shock absorber having an adjustable damping characteristic. The system also includes a controller coupled to each adjustable shock absorber to adjust the damping characteristic of each adjustable shock absorber, and a user interface coupled to the controller and accessible to a driver of the vehicle. The user interface includes at least one user input to permit manual adjustment of the damping characteristic of the at least one adjustable shock absorber during operation of the vehicle. Vehicle sensors are also be coupled to the controller to adjust the damping characteristic of the at least one adjustable shock absorber based vehicle conditions determined by sensor output signals. 1. A damping control method for a vehicle having a suspension located between a plurality of ground engaging members and a vehicle frame , a controller , a plurality of vehicle condition sensors , and a user interface , the suspension including a plurality of adjustable shock absorbers including a front right shock absorber , a front left shock absorber , and at least one rear shock absorber , the damping control method comprising:receiving with the controller a user input from the user interface to provide a user selected mode of damping operation for the plurality of adjustable shock absorbers during operation of the vehicle;receiving with the controller a plurality of inputs from the plurality of vehicle condition sensors including a z-axis acceleration sensor;determining with the controller when the vehicle is in an airborne event, the airborne event being determined when the input from the z-axis acceleration sensor indicates z-acceleration of less than a first threshold that is sustained for a time greater than a second threshold to identify the airborne event;operating the damping control according to an airborne ...

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Номер записи: 80
11-03-2021 дата публикации

VEHICLE HAVING SUSPENSION WITH CONTINUOUS DAMPING CONTROL

Номер: US20210070125A1
Автор: Brady Louis J., Franker Steven R., Nysse Aaron J., Scheuerell Alex R.
Принадлежит: Polaris Industries Inc.

A damping control system for a vehicle having a suspension located between a plurality of ground engaging members and a vehicle frame includes at least one adjustable shock absorber having an adjustable damping characteristic. The system also includes a controller coupled to each adjustable shock absorber adjust the damping characteristic of each adjustable shock absorber, and a user interface coupled to the controller and accessible to a driver of the vehicle. The user interface includes at least one user input to permit manual adjustment of the damping characteristic of the at least one adjustable shock absorber during operation of the vehicle. Vehicle sensors are also be coupled to the controller to adjust the damping characteristic of the at least one adjustable shock absorber based vehicle conditions determined by sensor output signals. 1. A damping control method for a vehicle having a suspension located between a plurality of ground engaging members and a vehicle frame , a controller , a plurality of vehicle condition sensors , and a user interface , the suspension including a plurality of adjustable shock absorbers including a front right shock absorber , a front left shock absorber , and at least one rear shock absorber , the damping control method comprising:receiving with the controller a user input from the user interface to provide a user selected mode of damping operation for the plurality of adjustable shock absorbers during operation of the vehicle;receiving with the controller a plurality of inputs from the plurality of vehicle condition sensors including a z-axis acceleration sensor;determining with the controller when the vehicle is in an airborne event, the airborne event being determined when the input from the z-axis acceleration sensor indicates z-acceleration of less than a first threshold that is sustained for a time greater than a second threshold to identify the airborne event;operating the damping control according to an airborne ...

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Номер записи: 81
11-03-2021 дата публикации

VEHICLE HAVING SUSPENSION WITH CONTINUOUS DAMPING CONTROL

Номер: US20210070126A1
Автор: Brady Louis J., Franker Steven R., Nysse Aaron J., Scheuerell Alex R.
Принадлежит: Polaris Industries Inc.

A damping control system for a vehicle having a suspension located between a plurality of ground engaging members and a vehicle frame includes at least one adjustable shock absorber having an adjustable damping characteristic. The system also includes a controller coupled to each adjustable shock absorber adjust the damping characteristic of each adjustable shock absorber, and a user interface coupled to the controller and accessible to a driver of the vehicle. The user interface includes at least one user input to permit manual adjustment of the damping characteristic of the at least one adjustable shock absorber during operation of the vehicle. Vehicle sensors are also be coupled to the controller to adjust the damping characteristic of the at least one adjustable shock absorber based vehicle conditions determined by sensor output signals. 1. A damping control method for a vehicle having a suspension located between a plurality of ground engaging members and a vehicle frame , a controller , a plurality of vehicle condition sensors , and a user interface , the suspension including a plurality of adjustable shock absorbers including a front right shock absorber , a front left shock absorber , and at least one rear shock absorber , the damping control method comprising:receiving with the controller a user input from the user interface to provide a user selected mode of damping operation for the plurality of adjustable shock absorbers during operation of the vehicle;receiving with the controller a plurality of inputs from the plurality of vehicle condition sensors including a z-axis acceleration sensor;determining with the controller when the vehicle is in an airborne event, the airborne event being determined when the input from the z-axis acceleration sensor indicates z-acceleration of less than a first threshold that is sustained for a time greater than a second threshold to identify the airborne event;operating the damping control according to an airborne ...

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Номер записи: 82
11-03-2021 дата публикации

SHOCK ABSORBER FOR VEHICLE

Номер: US20210070130A1
Автор: CHEONG Moonsang
Принадлежит:

Disclosed is a shock absorber for a vehicle including a cylinder filled with a fluid, a piston rod disposed inside the cylinder, a piston valve disposed at a lower portion of the piston rod, a stopper installed above the piston valve on the piston rod, a free piston configured to divide the cylinder into a first chamber and a second chamber below the first chamber and installed on the piston rod to be movable upward from the stopper, a spring configured to elastically support the free piston, and a bypass portion provided on an inner circumferential surface of the cylinder. 1. A shock absorber for a vehicle comprising:a cylinder filled with a fluid;a piston rod disposed inside the cylinder;a piston valve disposed at a lower portion of the piston rod;a stopper installed above the piston valve on the piston rod;a free piston configured to divide the cylinder into a first chamber and a second chamber below the first chamber and installed on the piston rod to be movable upward from the stopper;a spring configured to elastically support the free piston; anda bypass portion provided on an inner circumferential surface of the cylinder,wherein the bypass portion forms a path through which the fluid is bypassed between the first chamber and the second chamber when the free piston is located in the bypass portion.2. The shock absorber according to claim 1 , whereinthe bypass portion is formed in a groove shape recessed from the inner circumferential surface of the cylinder in an outer diameter direction thereof.3. The shock absorber according to claim 2 , whereina plurality of the bypass portions extending in a vertical direction based on an axial direction of the piston rod is provided.4. The shock absorber according to claim 3 , whereinthe plurality of bypass portions is provided such that lower end portions thereof are disposed in the first chamber.5. The shock absorber according to claim 3 , whereinthe plurality of bypass portions is provided such that upper end portions ...

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Номер записи: 83
17-03-2016 дата публикации

SHOCK ABSORBER

Номер: US20160075204A1
Автор: HAMSO Vegard, Marking John
Принадлежит:

A shock absorber including: a first cylinder having an interior, first and second ends and defining an axis, wherein the interior includes a damping fluid chamber and a damping piston movably mounted therein for movement between the first and second ends, wherein the damping piston is mounted on a first end of a shaft, wherein the first end of the shaft is movably retained within the interior of the first cylinder; first and second bypass openings configured for opening into the damping fluid chamber at first and second axially spaced-apart positions; a bypass channel fluidly coupling the first and second bypass openings; a fluid metering valve; and a floating piston dividing a portion of the shock absorber into a gas chamber and the reservoir chamber, wherein the fluid metering valve and the floating piston define the reservoir chamber there between. 1. A shock absorber comprising:a first cylinder having an interior, first and second ends and defining an axis, wherein said interior comprises a damping fluid chamber and a damping piston movably mounted therein for movement between said first and second ends, wherein said damping piston is mounted on a first end of a shaft, wherein said first end of said shaft is movably retained within said interior of said first cylinder;first and second bypass openings configured for opening into said damping fluid chamber at first and second axially spaced-apart positions;a bypass channel fluidly coupling said first and second bypass openings;a fluid metering valve configured for metering fluid flowing between said damping fluid chamber and a reservoir chamber during at least one of a compression and a rebound; anda floating piston dividing a portion of said shock absorber into a gas chamber and said reservoir chamber, wherein said fluid metering valve and said floating piston define said reservoir chamber there between.2. The shock absorber of claim 1 , wherein said damping piston is vented.3. The shock absorber of claim 1 , ...

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Номер записи: 84
15-03-2018 дата публикации

VEHICLE DAMPING SYSTEM AND VEHICLE

Номер: US20180072126A1
Автор: SAWAI Seiji
Принадлежит:

An oil channel that connects, a right damper and a left damper includes a switching valve arranged between a right oil channel ER and a left oil channel EL. The switching valve includes a valve main body in which a first switching channel is formed for connecting the right oil channel ER and the left oil channel EL. The valve main body is rotatable to a first position where the first switching channel connects the right oil channel ER and the left oil channel EL to each other and to a second position different from the first position. According to this damping system, it is possible to adjust oil flow in the oil channel by performing a simple operation for the switching valve. 1. A vehicle damping system , comprising:a first damper comprising a first cylinder filled with oil and a first piston separating an inside of the first cylinder into two oil chambers, the first piston comprising an orifice for communication between the two oil chambers, the first piston being configured to move in the first cylinder in accordance with a vertical movement of a first vehicle body support member that supports a vehicle body;a second damper comprising a second cylinder filled with oil and a second piston separating an inside of the second cylinder into two oil chambers, the second piston comprising an orifice for communication between the two oil chambers, the second piston being configured to move in the second cylinder in accordance with a vertical movement of a second vehicle body support member that supports the vehicle body; andan oil channel that connects the first cylinder and the second cylinder and allows oil to move between the first cylinder and the second cylinder,whereinthe oil channel comprises a first oil channel connected to the first cylinder, a second oil channel connected to the second cylinder, and a switching valve arranged between the first oil channel and the second oil channel,the switching valve comprises a valve main body having a first switching channel ...

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Номер записи: 85
24-03-2022 дата публикации

DISTRIBUTED ACTIVE SUSPENSION SYSTEM WITH AN ELECTRICALLY DRIVEN PUMP AND VALVE CONTROLLED HYDRAULIC PUMP BYPASS FLOW PATH

Номер: US20220088985A1
Автор: Anderson Zackary Martin, BAVETTA Ryan, Jackowski Zachary J.
Принадлежит: ClearMotion, Inc.

A regenerative shock absorber that include a housing and a piston that moves at least partially through the housing when the shock is compressed or extended from a rest position. When the piston moves, hydraulic fluid is pressurized and drives a hydraulic motor. The hydraulic motor, in turn, drives an electric generator that produced electric energy. The electric energy may be provided to a vehicle, among other things. The regenerative shock absorber may also provide ride performance that comparable to or exceeds that of conventional shock absorbers. 162-. (canceled)63. A shock absorber system of a vehicle , comprising:a housing that includes a compression volume and an extension volume;a piston disposed in the housing that in a first mode is configured to move through at least a portion of a compression stroke—and that in a second mode is configured to move through at least a portion of an extension stroke;a hydraulic device which is one of a hydraulic motor and a hydraulic pump, wherein the hydraulic device includes a first port and a second port, wherein the first port is in fluid communication with the compression volume and the second port is in fluid communication with the extension volume;a pressurized reservoir having a reservoir volume configured to receive fluid from at least one of the compression volume and the extension volume; anda first valve configured to close fluid communication to the extension volume in at least one mode of operation to prevent the piston from moving in an extension direction.64. The shock absorber system of claim 63 , further comprising hydraulic controls configured to selectively control fluid communication of the pressurized reservoir with the extension volume and the compression volume.65. The shock absorber system of claim 63 , further comprising a second valve claim 63 , wherein and the second valve is configured to close fluid communication to the compression volume in at least one mode of operation to prevent the piston ...

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Номер записи: 86
24-03-2022 дата публикации

SUSPENSION SYSTEM WITH OPTIMIZED POSITION SENSITIVE DAMPING AND SYSTEM AND METHOD FOR OPTIMIZING THE SAME

Номер: US20220088987A1
Автор: Otten Erik
Принадлежит:

A method of optimizing a suspension system to avoid pitch resonance may include determining pitch characteristics of a vehicle for a terrain profile and speed range via a model associated with the vehicle, decoupling front and rear axles by removing pitch inertia from the model, and determining optimized damping for a main damper of a position sensitive damper over a linear range of wheel travel in a bounce control zone based on the pitch characteristics. The method may further include recoupling the front and rear axles by adding the pitch inertia back into the model, and selecting a secondary damper associated with a compression zone or a secondary damper associated with a rebound zone as a selected damper for adjustment based on which of the front and rear axles is limiting. The method may also include performing a damping adjustment to the selected damper and cyclically repeating selecting the secondary damper and performing the damping adjustment until pitch resonance is suppressed. 1. A position sensitive suspension system for a vehicle , the system comprising:a plurality of ride height sensors at locations of a chassis of the vehicle corresponding to respective wheels of the vehicle;a plurality of active position sensitive dampers, each active position sensitive damper being associated with one of the respective wheels of the vehicle; anda controller operably coupled to the ride height sensors and the active position sensitive dampers,wherein the controller is configured to determine a payload estimate based on information received from the ride height sensors, andwherein the controller is further configured to provide an adjustment to compensation damping of at least one of the active position sensitive dampers based on the payload estimate and vehicle speed.2. The system of claim 1 , wherein the active position sensitive dampers each include an electrically operable control valve claim 1 , andwherein the controller provides an instruction to the ...

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Номер записи: 87
16-03-2017 дата публикации

DAMPER CONTROL DEVICE

Номер: US20170072762A1
Автор: Kurita Norihiko
Принадлежит: KYB Corporation

A damper control device feeds back a pressure within an extension-side chamber to control an extension-side solenoid valve that adjusts the pressure within the extension-side chamber, and feeds back a pressure within a compression-side chamber to control a compression-side solenoid valve that adjusts the pressure within the compression-side chamber. The damper control device performs a compression-side reduction correction which reduces a compression-side current supplied to the compression-side solenoid valve during extension of a damper, and performs an extension-side reduction correction which reduces an extension-side current supplied to the extension-side solenoid valve during contraction of the damper. 1. A damper control device for controlling a damping force of a damper having an extension-side chamber and a compression-side chamber which are filled with a working fluid , whereinthe damper control device feeds back a pressure within the extension-side chamber to control an extension-side solenoid valve that adjusts the pressure within the extension-side chamber, and feeds back a pressure within the compression-side chamber to control a compression-side solenoid valve that adjusts the pressure within the compression-side chamber,the damper control device performs a compression-side reduction correction which reduces a compression-side current supplied to the compression-side solenoid valve during extension of the damper, andthe damper control device performs an extension-side reduction correction which reduces an extension-side current supplied to the extension-side solenoid valve during contraction of the damper.2. The damper control device according to claim 1 , whereinthe extension-side reduction correction is a correction that subtracts an extension-side reduction amount calculated based on an extension/contraction speed of the damper from the extension-side current, andthe compression-side reduction correction is a correction that subtracts a compression ...

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Номер записи: 88
05-03-2020 дата публикации

Shock absorber

Номер: US20200072312A1
Автор: Adam Reginald Dobinson, Benjamin Luke Dobinson, Christopher Glen Dobinson
Принадлежит: Birkgrove Pty Ltd

A position-sensitive shock absorber 1 comprising an internal fluid space 3, a piston 5 and fluid system 7. The piston divides the internal fluid space into a compression side 3 a and a rebound side 3 b. The fluid system fluidly connects the compression side to the rebound side. The fluid system comprises a chain 9 of three or more external fluid spaces 9 a, 9 b, 9 c, 9 d external to the internal fluid space, space flow-control-arrangements 27 i, 27 ii, 27 iii , and passage arrangements 25 a, 25 b, 25 c, 25 d mutually spaced along the internal fluid space. Each of the space flow-control-arrangements is configured to mutually fluidly connect a respective adjacent two of the external fluid spaces. Each of the external fluid spaces has a respective one of the passage arrangements. Each of the passage arrangements comprises one or more passages opening to the internal fluid space. The piston is movable along the internal fluid space to at least one of pass (at least one of the passages) and at least restrict flow through at least one of the passages.

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Номер записи: 89
24-03-2016 дата публикации

LIQUID DISPENSING EQUIPMENT WITH ACTIVE SUSPENSION SYSTEM

Номер: US20160081264A1
Автор: Bastin Bruce G., Tollefsrud Aaron R.
Принадлежит: CNH INDUSTRIAL AMERICA LLC

Self-propelled liquid dispensing equipment having ground engaging wheels and an active trailing link suspension system in which either suspension struts or air struts control suspension travel. A liquid pressure transducer is connected to a liquid reservoir to provide a control input that varies the assist given by the suspension struts or air strut in direct proportion to the quantity of liquid. A given suspension travel is maintained regardless of the quantity of liquid carried by the equipment. 1. A suspension system for self-propelled liquid application equipment having a reservoir for liquid and ground engaging wheels , said suspension system comprising:articulated suspension links for each wheel enabling up and down travel;a spring connected to each of said suspension links to urge the suspension system to an extended travel;a suspension strut connected to said suspension links and responsive to pressurized fluid inputs to vary the travel of said suspension system;a controller receiving control inputs and providing said pressurized fluid input to said suspension strut; and,a liquid pressure transducer fluidly connected to the liquid reservoir and providing a control input to said hydraulic pressurization unit proportional to the amount of liquid in the reservoir, whereby the suspension strut maintains the travel of said suspension system at a given length, irrespective of the amount of liquid in said reservoir.2. The suspension system as claimed in claim 1 , wherein said suspension links are trailing links.3. The suspension system as claimed in claim 1 , wherein the spring is a coil spring.4. The suspension system as claimed in claim 3 , wherein the suspension strut is positioned within the coil spring.5. The suspension system as claimed in claim 1 , wherein the signal from said pressure transducer is one of multiple inputs to said controller.6. The suspension system as claimed in claim 5 , further comprising an operator input to said controller.7. The ...

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Номер записи: 90
26-03-2015 дата публикации

Ride performance optimization in an active suspension system

Номер: US20150084290A1
Автор: Albert Chenouda Salib, Ben BULAT, David Michael Russell, Gregory SUTER, Marc Suermann, Russ Lee Norton, Uwe Hoffmann
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

An active vehicle suspension system includes an active damping mechanism operatively coupled to a vehicle wheel and configured for controlling a damping force applied to the wheel responsive to a control signal. A controller is operatively coupled to the damping mechanism and configured for generating a control signal to the damping mechanism responsive to velocity of the wheel in a downward vertical direction.

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Номер записи: 91
12-06-2014 дата публикации

Methods and apparatus for suspension lock out and signal generation

Номер: US20140159379A1
Автор: David Haugen
Принадлежит: Fox Factory Inc

Methods and apparatus for regulating the function of a suspension system are disclosed herein. Suspension characteristics often contribute to the efficiency of a suspended system. Depending on the desired operating parameters of the suspended system, it may be desirable to alter the functional characteristics of the suspension from time to time in order to maintain or increase efficiency. The suspension hereof may be selectively locked into a substantially rigid configuration, and the damping fluid may be phase separated and/or cooled to increase damping rate during use (or offset rate degradation). The suspension hereof may generate power usable to achieve any or all of the foregoing or to be stored for use elsewhere in the suspended system or beyond.

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Номер записи: 92
22-03-2018 дата публикации

Hydraulic Damper With An X-Flow Piston Assembly

Номер: US20180079270A1
Автор: Pawel Slusarczyk
Принадлежит: BeijingWest Industries Co Ltd

A hydraulic damper including a piston assembly having a piston body including at least two first channels and at least two second channels. The first and second channels are sloped. A compression side of each of the first channels is positioned radially outward relative to a rebound side. A rebound side of each of the second channels is positioned radially outward relative to a compression side. At least one main disc at least partially covers the rebound side of each of the first channels, and at least one main disc at least partially covers the compression side of each of the second channels. At least one supplementary channel is positioned radially inward with respect to the first and second channels. At least one supplementary disc at least partially covers at least one of a rebound side and a compression side of the at least one supplementary channel.

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Номер записи: 93
22-03-2018 дата публикации

SYSTEM FOR PREDICTIVE CHASSIS CONTROL FOR AN OFF-ROAD UTILITY VEHICLE

Номер: US20180079271A1
Автор: LANG MATTIAS, VON HOLST CHRISTIAN, ZWANZGER MATTHIAS
Принадлежит:

A system for predictive chassis control including a wheel-spring device controllable with respect to a damping or suspension characteristic, a sensor for ascertaining a force profile of a disturbance acting on the wheel-spring device, and a navigation for ascertaining a current geoposition of the off-road utility vehicle in the form of an associated position data. The system includes a memory unit and a control unit for saving the force profile induced by the disturbance or a quantity derived therefrom. The control unit detects an imminent renewed crossing of the disturbance by continuous reconciliation of the current geoposition received from the navigation with the saved position data. The control unit adapts the damping or suspension characteristic on the basis of the saved force profile or the quantity derived therefrom by a pilot control of the wheel-spring device to compensate for an influence of the disturbance on the wheel-spring device. 1. A system for predictive chassis control for an off-road utility vehicle , comprising:a wheel-spring device controllable with respect to a damping or suspension characteristic,a sensor means for ascertaining a force profile of a disturbance acting on the wheel-spring device as a condition of a ground surface being driven along;a navigation means for ascertaining a current geoposition of the off-road utility vehicle in the form of an associated position data; anda memory unit and a control unit for saving the force profile induced by the disturbance or a quantity derived therefrom, the force profile being inclusive of the position data corresponding thereto as an associated data pair;wherein the control unit detects an imminent renewed crossing of the disturbance by continuous reconciliation of the current geoposition received from the navigation means of the off-road utility vehicle with the saved position data;wherein, the control unit adapts the damping or suspension characteristic on the basis of the saved force profile ...

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Номер записи: 94
22-03-2018 дата публикации

Hydraulic shock absorbing apparatus for vehicle

Номер: US20180079275A1
Автор: Seiji Sawai, Yutaka Yamazaki
Принадлежит: Yamaha Motor Co Ltd

A hydraulic shock absorbing apparatus for a vehicle includes left and right front wheels, left and right arms, and hydraulic shock absorbers provided between a vehicle body and the left and right arms. A first end portion of each hydraulic shock absorber includes a cylinder main body partitioned into a first oil chamber and a second oil chamber by a piston. A second end portion of the hydraulic shock absorber includes a piston rod including the piston. A reserve tank is connected to one hydraulic shock absorber via a first hydraulic oil passage and connected to the other hydraulic shock absorber via a second hydraulic oil passage. The first hydraulic oil passage and the second hydraulic oil passage are individually connected to a third oil chamber of the reserve tank.

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Номер записи: 95
24-03-2016 дата публикации

VALVE SWITCHING CONTROLS FOR ADJUSTABLE DAMPER

Номер: US20160082803A1
Автор: BLANKENSHIP David R., DUNAWAY Scott S., Gardner Jeffrey T., Kazmirski Karl C., Paenhuysen Jeroen K.
Принадлежит:

A damper system and method for a vehicle includes a shock absorber and a damper module. The shock absorber includes a plurality of digital valves. The shock absorber is operable at one of multiple damping states based on a valve state of the digital valves. The damper module is coupled to each of the digital valves and controls each of the digital valves to a desired state based on a damper setting. The damper module determines a target damping state, where the target state is one of the multiple damping states. The damper module performs a switch operation to control the valve state of the plurality of digital valves to a given desired state when the target damping state is different from a present damping state. 1. A method for damping motion of a body of a vehicle during travel of the vehicle , wherein at least one shock absorber is coupled between a sprung portion and an unsprung portion of the vehicle , and wherein the shock absorber has a plurality of independently controllable digital valves , each said digital valve being movable between a first position permitting a flow of fluid therethrough , and a second position which does not permit a flow of fluid therethrough , the method comprising:generating a target damping state for the shock absorber;transmitting the target damping state to a damper module associated with the shock absorber; andusing the damper module to compare the target damping state to a present damping state of the shock absorber, and to generate a control operation that selectively controls one or more selected valves of the plurality of digital valves to achieve the target damping state.2. The method of claim 1 , wherein the damper module actuates selected ones of the plurality of digital valves in a predetermined order to achieve the target damping state.3. The method of claim 1 , wherein the damper module selects one of a predetermined plurality of available damping states claim 1 , and controls switching of the plurality of digital ...

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Номер записи: 96
23-03-2017 дата публикации

SHOCK ABSORBER

Номер: US20170080767A1
Автор: YAMASHITA MIKIO
Принадлежит:

A shock absorber includes: a damping valve that suppresses a flow of operating fluid due to the sliding of a piston to generate damping force; a bottomed tubular pilot case that forms a pilot chamber that causes pressure to act on the damping valve in a valve closing direction, together with the damping valve; and an annular seal member () that is provided to be fixed to the outer circumferential side of a rear surface of the damping valve, and is fitted into a tube of the pilot case so as to be slidable and to be in a liquid tight manner. A part of the flow of the operating fluid is guided to the pilot chamber and opening of the damping valve is suppressed by the pressure of the pilot chamber. An annular concave portion () is formed on the outer circumferential side of the seal member (), and an annular convex portion () is formed on the inner circumferential side of the seal member (). 1. A shock absorber comprising:a cylinder in which operating fluid is enclosed;a piston that is slidably fitted into the cylinder;a piston rod of which a first end side is coupled to the piston and a second side extends to the outside of the cylinder;a damping valve that suppresses a flow of the operating fluid due to the sliding of the piston to generate damping force;a bottomed tubular pilot case that forms a pilot chamber that causes pressure to act on the damping valve in a valve closing direction, together with the damping valve; andan annular seal member that is provided to be fixed to the outer circumferential side of a rear surface of the damping valve, and is fitted into a tube of the pilot case so as to be slidable and to be in a liquid tight manner,wherein the damping valve is configured such that the inner circumferential side of the damping valve is clamped and the outer circumferential side of the damping valve is opened,wherein a part of the flow of the operating fluid is guided to the pilot chamber and opening of the damping valve is suppressed by the pressure of the ...

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Номер записи: 97
23-03-2017 дата публикации

DAMPER CONTROL DEVICE

Номер: US20170080769A1
Автор: Kurita Norihiko
Принадлежит: KYB Corporation

The damper control device includes a three axis rate sensor that detects a pitching angular velocity of a vehicle body of a two-wheeled vehicle, a pressure sensor that detects a pressure of a contraction-side chamber in a front-wheel side damper, a pressure sensor that detects a pressure of a contraction-side chamber of a rear-wheel side damper, and a correction unit that corrects the pitching angular velocity. The damper control device controls the pressure of the contraction-side chamber in the front-wheel side damper and the pressure of the contraction-side chamber of the rear-wheel side damper on the basis of the corrected pitching angular velocity, the pressure of the contraction-side chamber in the front-wheel side damper and the pressure of the contraction-side chamber of the rear-wheel side damper. 1. A damper control device comprising:a pitching angular velocity detection unit configured to detect a pitching angular velocity of a vehicle body of a two-wheeled vehicle;a roll angle detection unit configured to detect a roll angle of the vehicle body;a yaw angular velocity detection unit configured to detect a yaw angular velocity of the vehicle body;a front-wheel side pressure detection unit configured to detect a pressure of a contraction-side chamber in a front-wheel side damper, the front-wheel side damper being interposed between the vehicle body and a front-wheel of the two-wheeled vehicle;a rear-wheel side pressure detection unit configured to detect a pressure of a contraction-side chamber in a rear-wheel side damper, the rear-wheel side damper being interposed between the vehicle body and a rear-wheel of the two-wheeled vehicle; anda correction unit configured to correct the pitching angular velocity on the basis of the roll angle and the yaw angular velocity, the correction unit being configured to remove a component based on the roll angle and the yaw angular velocity from the detected pitching angular velocity during turning of the two-wheeled ...

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Номер записи: 98
12-03-2020 дата публикации

Hydraulic damping device

Номер: US20200080612A1
Автор: Gota NAKANO, Kunio Shibasaki
Принадлежит: Showa Corp

The hydraulic damper 1 includes: a cylinder 11 storing oil; a piston unit connected to a rod moving in an axial direction and configured to move within the cylinder 11; an outer cylinder body 12 outside of the cylinder 11 and forming a communication path L through which oil flows along with movement of the piston unit; a damper case 13 outside of the cylinder 11 and forming a reservoir chamber R to retain oil; a damping force changer 52 external to the cylinder 11 and configured to generate a damping force by throttling flow of oil along with movement of the piston unit and configured to change magnitude of the damping force; and a joint piece 61 forming a channel 61R of oil from the communication path L to the damping force changer 52 and including an external valve to control flow of oil flowing through the channel 61R.

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Номер записи: 99
25-03-2021 дата публикации

Vehicle having suspension with continuous damping control

Номер: US20210086578A1
Автор: Aaron J. Nysse, Alex R. Scheuerell, Louis J. Brady, Steven R. Franker
Принадлежит: Polaris Industries Inc

A damping control system for a vehicle having a suspension located between a plurality of ground engaging members and a vehicle frame includes at least one adjustable shock absorber having an adjustable damping characteristic. The system also includes a controller coupled to each adjustable shock absorber to adjust the damping characteristic of each adjustable shock absorber, and a user interface coupled to the controller and accessible to a driver of the vehicle. The user interface includes at least one user input to permit manual adjustment of the damping characteristic of the at least one adjustable shock absorber during operation of the vehicle. Vehicle sensors are also be coupled to the controller to adjust the damping characteristic of the at least one adjustable shock absorber based vehicle conditions determined by sensor output signals.

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Номер записи: 100