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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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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 9425. Отображено 100.
08-03-2012 дата публикации

Sprung mass damping control system of vehicle

Номер: US20120059544A1
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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18-10-2012 дата публикации

Vehicle systems control for improving stability

Номер: US20120265402A1
Принадлежит: Honda Motor Co Ltd

Improved methods of controlling the stability of a vehicle are provided via the cooperative operation of vehicle stability control systems such as an Active Yaw Control system, Antilock Braking System, and Traction Control System. These methods use recognition of road surface information including the road friction coefficient (mu), wheel slippage, and yaw deviations. The methods then modify the settings of the active damping system and/or the distribution of drive torque, as necessary, to increase/reduce damping in the suspension and shift torque application at the wheels, thus preventing a significant shift of load in the vehicle and/or improving vehicle drivability and comfort. The adjustments of the active damping system or torque distribution temporarily override any characteristics that were pre-selected by the driver.

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20-12-2012 дата публикации

Linkage Lift Mechanism for Off-Road Vehicle

Номер: US20120318588A1
Принадлежит: AGCO Corp

A self-propelled implement may include a suspension arrangement with a suspension spring, an elevation toggling linkage, and a wheel. The suspension spring may support a main frame of the self-propelled implement at a sprung end. The elevation toggling linkage may be mounted at an unsprung end of the suspension spring. The elevation toggling linkage may be used to configure the self-propelled implement at a raised elevation or a lowered elevation.

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21-03-2013 дата публикации

Tilting Vehicle and a Method of Tilting a Vehicle with Rear Wheel Supports Having Hydraulic Cylinders Communicating Through a Pump

Номер: US20130068550A1
Автор: David Andrew Gale
Принадлежит: Individual

There is disclosed herein a vehicle configuration comprising a chassis, at least one front wheel, two rear wheels, and a propulsion unit driving the rear wheels. The rear wheels are connected to the chassis by a wheel support assembly configured for allowing movement of each rear wheel relative to the chassis, a hydraulic cylinder connected to the chassis and the rear wheel supports, and a piston connected the rear wheel supports and the chassis. The piston dividing the hydraulic cylinder into fluidly connected first and second chambers such that movement of hydraulic fluid from the first or second chamber of a hydraulic cylinder to the respective first or second chamber of another hydraulic cylinder displaces the pistons of the hydraulic cylinders in opposing directions relative to the respective housings and causes the chassis to articulate with respect to the surface.

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11-04-2013 дата публикации

Hydraulic Suspension System for Work Vehicle

Номер: US20130087421A1
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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23-05-2013 дата публикации

Method for operating a motor vehicle and motor vehicle

Номер: US20130131920A1
Принадлежит: Audi AG

A motor vehicle can have multiple drive modes, for example rear wheel drive, four wheel drive, front wheel drive. Here, an active chassis device is used to make different adjustments, for example with respect to the toe-in angle and the camber angle, of a wheel or else with respect to wheel loads as a function of the drive load. As a result, the driving behaviour can be matched in each case in an optimum way to the drive mode, or conversely can be configured in such a way that changing the drive mode does not have a perceptible effect for the driver.

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06-06-2013 дата публикации

Biasing air suspension system for a trailer

Номер: US20130140784A1
Автор: Rodney P. Ehrlich
Принадлежит: Individual

An air suspension system of a tandem axle assembly for a trailer includes a front axle air spring configured to be coupled to a front axle assembly of the tandem axle assembly and a rear axle air spring configured to be coupled to a rear axle assembly of the tandem axle assembly. The air suspension system further includes an air reservoir in fluid communication with the front axle air spring and the rear axle air spring and a ratio valve in fluid communication with the air reservoir, the front axle air spring, and the rear axle air spring. The ratio valve is positioned between the air reservoir and the front axle air spring. Further, the ratio valve is selectively operable to send a lesser amount of air from the air reservoir to the front axle air spring than to the rear axle air spring.

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21-11-2013 дата публикации

Tire management system

Номер: US20130306192A1
Автор: Mark Kevin Hennig
Принадлежит: Equalaire Systems Inc

A tire management system for a truck or trailer comprising an axle having a first tire mounted thereto, the system comprising an air pressure supply connected to the tire so as to allow sealed communication of pressurized air between the air pressure supply and the first tire, and a first pilot-operated check valve in sealed fluid communication with the air pressure supply and with the first tire, the first pilot-operated check valve being configured to allow air to flow only from the air pressure supply to the first tire when a pilot of the first pilot check valve is not activated, and to allow air to flow between the first tire and the air pressure supply when the pilot of the first pilot-operated check valve is activated.

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27-03-2014 дата публикации

Wading vehicle water level display

Номер: US20140085066A1
Принадлежит: Jaguar Land Rover Ltd

A vehicle ( 100 ) comprising a wading information display ( 1020 ), a memory and a processor, the memory containing a program configured to run on the processor to calculate the maximum wading depth of the vehicle from the measured suspension travel, and to display the maximum wading depth on the display. The display may also show a dual wading depth, an advisory wading speed, and vehicle inclination.

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07-01-2016 дата публикации

METHOD FOR ADJUSTING A ROLL MOMENT OF AN AXLE OF A VEHICLE FOR ROLL STABILIZATION

Номер: US20160001626A1
Автор: Illg Igor, MIRWALDT Thomas
Принадлежит:

A method for adjusting a roll moment of an axle of a vehicle for roll stabilization of a body of the vehicle, wherein the axle has two stabilizers which are operatively connected to in each case one wheel suspension system of the vehicle body, wherein an actuator is provided which is operatively connected to the two stabilizers, wherein an angular position for at least one stabilizer is determined depending on a setpoint roll moment of the axle and depending on angular positions of the two stabilizers, and wherein the actuator turns the at least one stabilizer to the determined angular position. 1. A method for adjusting a roll moment of an axle of a vehicle for roll stabilization of a body of the vehicle , wherein the axle has two stabilizers which are operatively connected to in each case one wheel suspension system of the vehicle body , wherein an actuator is provided which is operatively connected to the two stabilizers , comprising the steps of determining a desired angular position for at least one stabilizer depending on a setpoint roll moment of the axle and depending on angular positions of the two stabilizers , and turning the at least one stabilizer to the determined angular position via the actuator.2. The method as claimed in claim 1 , wherein at least an initial angle of one stabilizer is taken into account in order to determine the value of the angular position of the at least one stabilizer claim 1 , wherein an angular position of the stabilizer corresponds to the initial angle in a moment-free state of the stabilizer.3. The method as claimed in claim 2 , wherein at least an initial angle of the second stabilizer is taken into account in order to determine the value of the angular position of the at least one stabilizer.4. The method as claimed in claim 1 , wherein the desired angular positions are determined by the two stabilizers claim 1 , and the stabilizers are rotated by the actuator in accordance with the desired angular positions.5. The method ...

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03-01-2019 дата публикации

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

Номер: US20190001775A1
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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03-01-2019 дата публикации

VEHICLE HEIGHT ADJUSTMENT DEVICE

Номер: US20190001776A1
Принадлежит: Showa Corporation

A vehicle height adjustment device includes front forks, a rear suspension, a weight estimation unit, and a front wheel-side target movement amount determination unit. The front fork includes a front wheel-side suspension spring and a front wheel-side support member, which supports one end of the front wheel-side suspension spring, and moves toward another end of the front wheel-side spring to change the front wheel-side suspension spring length. The rear suspension includes a rear wheel-side suspension spring and a rear wheel-side support member, which supports one end of the rear wheel-side suspension spring, and moves toward another one end of the rear wheel-side spring to change the rear wheel-side suspension spring length. The weight estimation unit estimates a weight applied to a vehicle. The front wheel-side target movement amount determination unit decreases, a movement amount of the front wheel-side support member as the estimated weight increases. 1. A vehicle height adjustment device comprising: a front wheel-side spring disposed between a body of a vehicle and a front wheel; and', 'a front wheel-side support member supporting one end of the front wheel-side spring, the front wheel-side support member being configured to move toward another one end of the front wheel-side spring to change a length of the front wheel-side spring;, 'a front wheel-side suspension device comprising a rear wheel-side spring disposed between the body and a rear wheel; and', 'a rear wheel-side support member supporting one end of the rear wheel-side spring, the rear wheel-side support member being configured to move toward another one end of the rear wheel-side spring to change a length of the rear wheel-side spring;, 'a rear wheel-side suspension device comprisinga weight estimation unit configured to estimate a weight applied to the vehicle based on a length of the rear wheel-side suspension device and a movement amount of the rear wheel-side support member; anda control unit ...

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03-01-2019 дата публикации

Method for operating an electronically controllable air spring system in a vehicle and an electronically controllable air spring system

Номер: US20190001778A1
Принадлежит: WABCO GmbH

A method for operating an electronically controllable air spring system having air springs includes ascertaining a vehicle velocity of a vehicle and performing a procedure of monitoring a loading procedure and/or a procedure of monitoring an unloading procedure if the vehicle velocity indicates that the vehicle is at a standstill. The method further includes suppressing a level control procedure via the air spring system for a determined time period if at least one pressure difference that is allocated to the air springs exceeds the respective loading pressure limit difference or undercuts the unloading pressure difference and/or a loading criterion or an unloading criterion are met.

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03-01-2019 дата публикации

ACTIVE VEHICLE SUSPENSION SYSTEM

Номер: US20190001782A1
Принадлежит: ClearMotion, Inc.

A method of on-demand energy delivery to an active suspension system comprising an actuator body, hydraulic pump, electric motor, plurality of sensors, energy storage facility, and controller is provided. The method comprises 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. 144-. (canceled)45. A vehicle suspension system comprising:a controller adapted to control an electric motor that creates a force applied to a hydraulic actuator, wherein the actuator is capable of being controlled in at least three operational quadrants;an air spring operatively coupled in parallel to the hydraulic actuator; andan air spring controller adapted to control at least one of air pressure and air volume of the air spring, wherein at least one of air pressure and air volume, and the force applied to the hydraulic actuator are coordinated among the controllers.46. The vehicle suspension system of claim 45 , wherein the hydraulic actuator response time is substantially faster than the air spring response time.47. The vehicle suspension system of claim 45 , wherein the actuator and the air spring create force in the same direction during a first mode claim 45 , and opposite directions during a second mode claim 45 , and wherein the controller can command one of a first and second mode regardless of input to the wheel from the road.48. The vehicle suspension system of claim 45 , wherein the actuator is capable of both providing wheel damping and actively changing wheel position.49. The vehicle suspension system of claim 45 , wherein air pressure in the air spring and force from the actuator are controlled independently in each wheel.5056-. (canceled)57. The vehicle suspension system of claim 45 , wherein the air spring and the hydraulic actuator are ...

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03-01-2019 дата публикации

ROAD SURFACE FRICTION COEFFICIENT ESTIMATION APPARATUS FOR VEHICLE AND ROAD SURFACE FRICTION COEFFICIENT ESTIMATION METHOD FOR VEHICLE

Номер: US20190001988A1
Принадлежит:

A road surface friction coefficient estimation apparatus for a vehicle includes: a first estimator; a second estimator; and a third estimator. The first estimator estimates a first road surface friction coefficient on a basis of a vehicle information acquired from the vehicle. The second estimator estimates a second road surface friction coefficient on a basis of an external information acquired from an outside of the vehicle. The third estimator estimates a road surface friction coefficient from the first road surface friction coefficient and the second road surface friction coefficient on a basis of a first reliability degree and a second reliability degree, the first reliability degree indicating a reliability of the first road surface friction coefficient, the second reliability degree indicating a reliability of the second road surface friction coefficient. 1. A road surface friction coefficient estimation apparatus for a vehicle , the road surface friction coefficient estimation apparatus comprising:a first estimator configured to estimate a first road surface friction coefficient on a basis of a vehicle information acquired from the vehicle;a second estimator configured to estimate a second road surface friction coefficient on a basis of an external information acquired from an outside of the vehicle; anda third estimator configured to estimate a road surface friction coefficient from the first road surface friction coefficient and the second road surface friction coefficient on a basis of a first reliability degree and a second reliability degree, the first reliability degree indicating a reliability of the first road surface friction coefficient, the second reliability degree indicating a reliability of the second road surface friction coefficient.2. The road surface friction coefficient estimation apparatus for a vehicle according to claim 1 , comprising:a first reliability degree calculator configured to calculate the first reliability degree, whereinthe ...

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13-01-2022 дата публикации

A CONTROL SYSTEM FOR A VEHICLE

Номер: US20220009303A1
Принадлежит:

Aspects of the present invention relate to a control system, a suspension system, a vehicle and a method. A control system comprising one or more controllers is configured to: receive at least one vehicle dynamics signal, wherein the at least one vehicle dynamics signal is indicative of a vehicle dynamics parameter, determine a current dynamic usage of a vehicle in dependence on the received at least one vehicle dynamics signal, determine a control parameter for an actuator of the vehicle in dependence at least in part on the current dynamic usage of the vehicle, and output a control signal to control the actuator in dependence on the control parameter. 113-. (canceled)14. A control system for a vehicle suspension system , the control system comprising one or more controllers configured to:receive at least one vehicle dynamics signal, wherein the at least one vehicle dynamics signal is indicative of at least one vehicle dynamics parameter;determine a current dynamic usage of a vehicle in dependence on the received at least one vehicle dynamics signal;determine an operating limit for a control parameter of an actuator of the vehicle suspension system in dependence at least in part on the current dynamic usage of the vehicle; andoutput a control signal to control the actuator in dependence on the operating limit.15. The control system according to claim 14 , wherein the one or more controllers is configured to:determine, in dependence on the at least one vehicle dynamics signal, at least one of:an anti-roll torque demand, anda disturbance characteristic value; anddetermine the current dynamic usage of the vehicle at least in part in dependence on the anti-roll torque demand and/or the disturbance characteristic value.16. The control system according to claim 14 , wherein the at least one vehicle dynamics signal is indicative of a movement of one or more components associated with the vehicle suspension system.17. The control system according to claim 14 , wherein ...

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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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12-01-2017 дата публикации

METHOD AND APPARATUS FOR AN ADJUSTABLE DAMPER

Номер: US20170008363A1
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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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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12-01-2017 дата публикации

ANTI-ROLL BAR FOR THE ROLLING STABILIZATION OF A VEHICLE AND METHOD FOR OPERATING SUCH AN ANTI-ROLL BAR

Номер: US20170008366A1
Принадлежит: ZF FRIEDRICHSHAFEN AG

A stabilizer () for the anti-roll stabilization of a vehicle (). The stabilizer () has a first stabilizer element () and a second stabilizer element (). The first stabilizer element () is, or can be, coupled to a first wheel suspension element () of the vehicle () and the second stabilizer element () is, or can be, coupled to a second wheel suspension element () of the vehicle (). Furthermore, the stabilizer () is provided with an electric motor () designed to rotate the first stabilizer element (), relative to the second stabilizer element () in response to a control signal, so as to decouple the first wheel suspension element () from the second wheel suspension element (). In this case the control signal represents a signal determined on the basis of a field-orientated control system. 110-. (canceled)11105100105. A stabilizer () for anti-roll stabilization of a vehicle () , wherein the stabilizer () comprises:{'b': 1101', '115, 'a first stabilizer element (, and a second stabilizer element (),'}{'b': 110', '120', '100', '115', '125', '100, 'the first stabilizer element () is connectable to a first wheel suspension element () of the vehicle () and the second stabilizer element () is connectable to a second wheel suspension element () of the vehicle (); and'}{'b': 135', '110', '115', '120', '125, 'at least one electric motor (), which is designed to rotate the first stabilizer element () relative to the second stabilizer element () in response to a control signal, in order to decouple the first wheel suspension element () from the second wheel suspension element (), and the control signal is a signal determined by using an algorithm of a field-orientated control system.'}12100105100105. A vehicle () in combination with at least one stabilizer () for anti-roll stabilization of the vehicle () , the stabilizer () comprises:{'b': 110', '115, 'a first stabilizer element () and a second stabilizer element (),'}{'b': 110', '120', '100', '115', '125', '100, 'the first ...

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11-01-2018 дата публикации

SECURING ATTACHMENTS TO WORK VEHICLES WITH SUSPENSION CONTROL

Номер: US20180009285A1
Принадлежит:

A system and a method for securing an attachment to a work vehicle with a chassis and a suspension are described. A mounting frame with a frame attachment point disposed on a support can be attached to a work vehicle. The suspension can be caused to lower the mounting frame relative to ground by lowering the chassis of the work vehicle. The work vehicle can be maneuvered to align the frame attachment point with a corresponding attachment point on the attachment. The suspension can then be caused to raise the mounting frame relative to ground by raising the chassis of the work vehicle. The frame attachment point can thereby engage the corresponding attachment point on the attachment, as the mounting frame is raised, in order to lift the attachment, with the attachment being thereby supported by the work vehicle solely via the mounting frame. 1. An attachment system for a work vehicle with a suspension , the attachment system comprising:an attachment having one or more legs to support the attachment relative to ground when not carried by the work vehicle;a mounting frame attached to the work vehicle at one or more vehicle attachment points, the mounting frame including at least one support extending one of forward of a leading end of the work vehicle and rearward of a trailing end of the work vehicle, such that at least one frame attachment point on the at least one support is disposed, respectively, one of forward of the leading end of the work vehicle and rearward of the trailing end of the work vehicle;a user interface configured to receive user commands for adjustment of the suspension; anda controller configured to cause the suspension to be raised and lowered relative to ground based upon the user commands received at the user interface;wherein, when the at least one frame attachment point is vertically aligned with a corresponding at least one attachment point on the attachment and a user command for lifting is received at the user interface, the controller ...

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14-01-2021 дата публикации

ELECTRIC SUSPENSION DEVICE

Номер: US20210008943A1
Принадлежит:

An electric suspension device, includes: an electromagnetic actuator which is arranged in parallel to a spring member provided between a body and a wheel of a vehicle and produces a drive force concerning damping operation and expansion-contraction operation; an information acquisition section which acquires roll velocity of the vehicle; a damping force calculation section which calculates a target damping force as a target value for the damping operation of the electromagnetic actuator; and an ECU which performs drive control for the electromagnetic actuator using a target drive force based on the calculated target damping force. The damping force calculation section calculates a standard damping force of the electromagnetic actuator as a standard value, calculates a supplementary damping force which supplements the standard damping force based on the roll velocity acquired by the information acquisition section, and adds the calculated standard and supplementary damping forces to calculate the target damping force. 1. An electric suspension device , comprising:an electromagnetic actuator which is arranged in parallel to a spring member provided between a body and a wheel of a vehicle and produces a drive force concerning damping operation and expansion-contraction operation;an information acquisition section which acquires roll velocity of the vehicle;a damping force calculation section which calculates a target damping force as a target value for the damping operation of the electromagnetic actuator; anda drive controller which performs drive control for the electromagnetic actuator using a target drive force based on the target damping force calculated by the damping force calculation section, whereinthe damping force calculation section calculates a standard damping force of the electromagnetic actuator as a standard value, calculates a supplementary damping force which supplements the standard damping force based on the roll velocity acquired by the ...

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10-01-2019 дата публикации

AUTO-LEVELING DRIVE AXLE DEVICE FOR WHEELED TRACTOR, AND LEVELING METHOD

Номер: US20190009844A1
Принадлежит: Jiangsu University

An auto-leveling drive axle device for a wheel tractor, and leveling method. The device comprises a transmission device and a leveling device. The device of the present invention changes only a vertical position of a drive axle with respect to a wheel, and a wheel shaft distance and wheel center spacing are not changed, thus improving traveling stability of a vehicle. 1. An auto-leveling drive axle device for a wheeled tractor comprising a transmission device and a leveling device; wherein:the transmission device comprises a drive axle housing, a half-shaft bevel gear, a vertical transmission shaft, and a wheel-side planetary reduction gear mechanism; the upper end of vertical transmission shaft is equipped with a vertical shaft upper bevel gear that can slide upward and downward along the vertical transmission shaft, and a lower end integrally fixed with a vertical shaft lower bevel gear;wherein the half-shaft bevel gear is mounted in the drive axle housing, and the rotation of the half-shaft bevel gear in the drive axle housing is driven by engine power;the half-shaft bevel gear meshes with the vertical shaft upper bevel gear, to drive the rotation of the vertical shaft upper bevel gear;the rotation of the vertical transmission shaft is driven by the rotation of the vertical shaft upper bevel gear, and thereby drives the rotation of the vertical shaft lower bevel gear;the vertical shaft lower bevel gear meshes with a bevel gear of the wheel-side planetary reduction gear mechanism, to drive the rotation of a wheel by the wheel reduction gear mechanism; andthe levelling device employs a hydraulic system, the hydraulic system drives the drive axle housing to move upward and downward with respect to the wheel, so that the drive axle housing is kept horizontality.2. The auto-leveling drive axle device for a wheeled tractor according to claim 1 , wherein claim 1 , the hydraulic system comprises an inclination sensor claim 1 , an electronic control unit claim 1 , a ...

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09-01-2020 дата публикации

DAMPER WITH VEHICLE INTERFACE ADAPTER

Номер: US20200009933A1
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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14-01-2021 дата публикации

Valve device and shock absorber

Номер: US20210010558A1
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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03-02-2022 дата публикации

UNMANNED GROUND-BASED HYGIENE MAINTENANCE VEHICLE AND METHOD FOR IMPROVING HYGIENE CONDITIONS

Номер: US20220031895A1
Принадлежит:

An unmanned ground-based hygiene maintenance vehicle, UGV, includes a housing with a base plate, top plate and housing side wall substantially perpendicular to the base plate. Arranged in the housing is at least one wheel drive coupled to at least one wheel in a recess in the base plate. The UGV includes sensors for sensing the environment of the UGV, and a controller for autonomous location and navigation of the UGV based on sensing parameters of the sensors. The UGV includes an articulated robot arm on the top plate of the housing and to support a hygiene maintenance tool. The UGV includes at least one load-receiving element coupled to the housing side wall and extending outwards from the housing side wall, wherein the load-receiving element includes a load support surface for supporting a hygiene maintenance tool supply module with respect to a vertical direction extending transverse to the base plate. 1. An unmanned ground-based hygiene maintenance vehicle , UGV , comprising:a housing having a base plate, a top plate and at least one housing side wall that is substantially perpendicular to the base plate;at least one wheel drive, which is in the housing;at least one wheel, which is coupled to the at least one wheel drive and in a recess in the base plate;a plurality of sensors for sensing an environment of the UGV;a controller for autonomous location and navigation of the UGV on a basis of sensing parameters of the plurality of sensors;an articulated robot arm mounted on or through the top plate of the housing and configured to support a hygiene maintenance tool; andat least one load-receiving element that is coupled to the housing side wall and extends outwards from the housing side wall, the at least one load-receiving element comprising a load support surface for supporting a hygiene maintenance tool supply module with respect to a vertical direction which extends transverse to the base plate.2. The UGV according to claim 1 , wherein the at least one load- ...

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03-02-2022 дата публикации

SUSPENSION SYSTEM FOR ELECTRIC HEAVY-DUTY VEHICLE

Номер: US20220032704A1
Принадлежит:

Methods and systems are provided for an electric heavy-duty vehicle. In one example, a system for the vehicle may include a wheel hub assembly coupled to a frame of the vehicle via a first wishbone arm and a second wishbone arm, and an air spring coupled at opposite ends to a first link and a second link, each of the first link and the second link being pivotably coupled to the frame of the vehicle, the second link further being pivotably coupled to the first wishbone arm. The air spring may be positioned above the wheel hub assembly with respect to the vehicle. 1. A system for a vehicle , the system comprising:a wheel hub assembly coupled to a frame of the vehicle via a first wishbone arm and a second wishbone arm; andan air spring coupled at opposite ends to a first link and a second link, each of the first link and the second link being pivotably coupled to the frame of the vehicle, the second link further being pivotably coupled to the first wishbone arm,wherein the air spring is positioned above the wheel hub assembly with respect to the vehicle.2. The system of claim 1 , wherein the air spring is coupled to the first link and the second link via respective first and second plates claim 1 , the first and second plates being maintained substantially parallel to one another during compression and expansion of the air spring.3. The system of claim 2 , wherein the air spring comprises an air bag partially surrounding a stem claim 2 , andwherein the first plate is directly coupled to the air bag and the second plate is directly coupled to the stem.4. The system of claim 1 , wherein the second link is configured to inhibit buckling of the air spring during pivoting of the first wishbone arm within a target angular range.5. The system of claim 4 , wherein the target angular range comprises up to 30 degrees of rotation.6. The system of claim 1 , wherein the first wishbone arm and the second wishbone arm are coupled to opposite ends of the wheel hub assembly claim 1 , ...

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03-02-2022 дата публикации

SUSPENSION SYSTEM

Номер: US20220032707A1
Принадлежит:

A stopped vehicle height of an air suspension for a stop-side wheel on a side that stops first is determined in consideration of a vehicle height that changes in accordance with a vehicle height change of the air suspension for a supply/discharge-side wheel on another side after a stop. Thus, when vehicle height adjustment of the air suspension for the supply/discharge-side wheel is finished, the stopped vehicle height of the air suspension for the stop-side wheel can be adjusted to the vicinity of a target value and the precision in the vehicle height adjustment can be increased. 1. A suspension system , comprising:a right-side suspension and a left-side suspension interposed between a vehicle body and an axle, each of the right-side suspension and the left-side suspension being provided on at least one of a front side and a rear side so as to be capable of adjusting a vehicle height in accordance with supply and discharge of working fluid;a supply/discharge mechanism configured to supply and discharge the working fluid to and from each of the right-side suspension and the left-side suspension; anda vehicle height detector configured to detect or estimate the vehicle height of each of the right-side suspension and the left-side suspension,wherein when vehicle height adjustment of each of the right-side suspension and the left-side suspension is performed through use of the supply/discharge mechanism so that a detection value of the vehicle height detector approaches a target vehicle height, a stopped vehicle height of a suspension on one side, which is one of the right-side suspension and the left-side suspension, and stops first, is determined in consideration of a vehicle height changed in accordance with a change in vehicle height of a suspension on another side after the stop.2. The suspension system according to claim 1 , wherein the stopped vehicle height of the suspension on the one side is determined based on a vehicle height change rate of the suspension ...

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03-02-2022 дата публикации

STABILIZER SYSTEM

Номер: US20220032708A1
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A vehicle stabilizer system, including: a stabilizer device and a switching mechanism to switch a roll suppressing function by a stabilizer bar between an effective state in which the roll suppressing function is rendered effective and an ineffective state in which the roll suppressing function is rendered ineffective; and a controller configured to determine whether a lateral acceleration of a vehicle body is greater than a threshold lateral acceleration and control the switching mechanism to render the roll suppressing function effective when the lateral acceleration is greater than the threshold lateral acceleration and ineffective when the lateral acceleration is not greater than the threshold lateral acceleration, wherein the controller employs, as a determination lateral acceleration for determining whether the lateral acceleration is greater than the threshold lateral acceleration, a smaller one of an actual lateral acceleration and an estimated lateral acceleration estimated based on a turning degree of the vehicle. 1. A stabilizer system for a vehicle , comprising:a stabilizer device including a stabilizer bar and a switching mechanism configured to switch a roll suppressing function of suppressing roll of a body of the vehicle by the stabilizer bar between an effective state in which the roll suppressing function is rendered effective and an ineffective state in which the roll suppressing function is rendered ineffective; anda controller configured to determine whether a lateral acceleration of the body of the vehicle is greater than a threshold lateral acceleration and to control the switching mechanism to render the roll suppressing function effective when the lateral acceleration is greater than the threshold lateral acceleration and to render the roll suppressing function ineffective when the lateral acceleration is not greater than the threshold lateral acceleration,wherein the controller employs, as a determination lateral acceleration for ...

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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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03-02-2022 дата публикации

DEVICE AND APPARATUS FOR THE HEIGHT ADJUSTMENT OF A ROAD VEHICLE AND RELATIVE ROAD VEHICLE

Номер: US20220032713A1
Принадлежит:

A device for the height adjustment of a road vehicle interposed between a frame and a suspension of the road vehicle so as to allow the vehicle to shift from a road configuration to a race configuration and vice versa. The device comprises a base body provided with a first end, which can mechanically be connected to the frame of the road vehicle; a first mass, which can be connected to the base body so as to be movable along a sliding axis; a second mass, which is connected to the first mass so as to be movable along the sliding axis as well and is configured to be able to be connected to a suspension of the road vehicle and to change the stroke of the suspension depending on the position of the second movable mass. 12242) A device () for the height adjustment of a high-performance road vehicle; the device () being configured to be at least partially interposed between a frame and a suspension () of the road vehicle and to allow the vehicle to shift from a road configuration to a race configuration and vice versa; the device () comprising:{'b': 6', '7, 'a base body () comprising a first end (), which can mechanically be connected to the frame of the road vehicle;'}{'b': 8', '6', '8', '10', '4, 'a first mass (), which is connected to the base body () so as to be movable along a sliding axis (A) and is capable of assuming at least a first position in the road configuration and a second position in the race configuration; wherein the first movable mass () comprises a plate (), which is configured to at least partially compress a main elastic element of the suspension ();'}{'b': 2', '9', '8', '9', '16', '7', '4', '4', '9', '9', '8, 'the device () being characterized in that it comprises a second mass (), which is connected to the first mass () so as to be movable along the sliding axis (A) as well and is capable of assuming at least a third position in the road configuration and a fourth position in the race configuration; wherein the second movable mass () comprises a ...

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03-02-2022 дата публикации

Electronic suspension control system for a vehicle

Номер: US20220032715A1
Принадлежит: Valid Manufacturing Ltd

A system and method are provided for configuring suspension ratios in a multi-rear axle vehicle, the vehicle having a drive axle suspension and at least one tag axle suspension, each suspension having one or more air springs. The timing of the performance of an adjustment cycle series of steps for adjusting the suspension height and air spring pressure readings is optimized by monitoring the acceleration of the vehicle and conducting the adjustment cycle steps when the vehicle acceleration is below an acceleration threshold. Additionally, air spring pressure adjustments may be scaled based on a confidence factor of the air spring pressure readings. Finally, a method is provided for configuring suspension ratios in a multi-rear axle vehicle, the vehicle having a drive axle suspension and at least one tag axle suspension, and for adjusting the air suspension pressures.

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03-02-2022 дата публикации

ACTIVE ROLL STABILIZER

Номер: US20220032723A1
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

An active roll stabilizer includes a divided torsion bar () having torsion bar parts () which are arranged one behind the other along a torsion bar axis. An actuator () for transmitting torsional torques to the torsion bar () is provided. An electric motor () and a transmission () connected to the electric motor () are arranged in an actuator housing (). The actuator housing () is connected to the one torsion bar part () for conjoint rotation and the transmission () is connected, on the output side, to the other torsion bar part () for conjoint rotation. A motor housing () of the electric motor () is connected, by means of only one of the two axial ends of said motor housing, to the actuator housing () for conjoint rotation. 1. An active roll stabilizer , having a divided torsion bar with two torsion bar parts arranged one behind the other along a torsion bar axis , an actuator for applying torque to the torsion bar parts , the actuator having an electric motor and a transmission connected to the electric motor arranged within an actuator housing , the actuator housing being connected to one of the two torsion bar parts for conjoint rotation and the transmission being connected , on an output side , to another of the two torsion bar parts for conjoint rotation , wherein a motor housing of the electric motor is connected at only a first of two axial ends to the actuator housing for conjoint rotation.2. The active roll stabilizer according to claim 1 , wherein a clearance fit is provided between a second of the two axial ends of the motor housing and the actuator housing.3. The active roll stabilizer according to claim 1 , wherein the motor housing has a hollow sleeve and two bearing shields claim 1 , one bearing shield arranged at each axial end of the sleeve.4. The active roll stabilizer according to claim 3 , wherein one of the bearing shields faces the transmission and has a bushing for a motor shaft of the electric motor and the other bearing shield faces away ...

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18-01-2018 дата публикации

RIDE PERFORMANCE OPTIMIZATION SYSTEMS AND DEVICES, AND RELATED METHODS

Номер: US20180015801A1
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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18-01-2018 дата публикации

DEVICE AND METHOD FOR ESTIMATING DAMPER FORCE AND DAMPER VELOCITY IN ACTIVE SUSPENSION SYSTEM

Номер: US20180015802A1
Автор: JEONG Seung Hwan
Принадлежит:

A device and a method of estimating damper force and damper velocity in an active suspension system. First and second pressure sensors sense pressures of a rebound chamber and a compression chamber of a damper in the active suspension system. A controller calculates damper force using the pressures and effective hydraulic pressure areas of the rebound chamber and the compression chamber and calculating damper velocity using pressure-fluid rate characteristics of first to third valve sets and the pressures of the rebound chamber and the compression chamber such that a sum of fluid rates is zero in a node connected between any one of the first to third valve sets and the rebound chamber or the compression chamber, the first to third valve sets being connected between the rebound chamber and an accumulator, between the rebound chamber and the compression chamber, or between the compression chamber and the accumulator. 1. A device for estimating damper force and damper velocity in an active suspension system , the device comprising:first and second pressure sensors for sensing pressures of a rebound chamber and a compression chamber of a damper in the active suspension system, respectively; anda controller for calculating damper force using the pressures and effective hydraulic pressure areas of the rebound chamber and the compression chamber and calculating damper velocity using pressure-fluid rate characteristics of first to third valve sets and the pressures of the rebound chamber and the compression chamber such that a sum of fluid rates is zero in a node connected between any one of the first to third valve sets and the rebound chamber or the compression chamber, the first to third valve sets being connected between the rebound chamber and an accumulator, between the rebound chamber and the compression chamber, or between the compression chamber and the accumulator.2. The device according to claim 1 , wherein the controller calculates the damper force from a ...

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16-01-2020 дата публикации

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

Номер: US20200016952A1
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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21-01-2021 дата публикации

CONTROLLING DAMPER FRICTION EFFECTS IN A SUSPENSION

Номер: US20210016620A1
Принадлежит:

In some examples, a vehicle suspension for supporting, at least in part, a sprung mass, includes a damper connected to the sprung mass, the damper including a movable piston. The vehicle suspension further includes an actuator and a controller. The controller may be configured to determine a frequency of motion associated with the sprung mass. When the frequency of motion is below a first frequency threshold, the controller may send a control signal to cause the actuator to apply a deceleration force to the sprung mass. Further, when the frequency of motion associated with the sprung mass exceeds the first frequency threshold, the controller may send a control signal to cause the actuator to apply a compensatory force to the sprung mass. For instance, a magnitude of the compensatory force may be based on a friction force determined for the damper. 1. A vehicle suspension system for supporting , at least in part , a sprung mass , the system comprising:a damper supporting the sprung mass, the damper including a movable piston;an actuator; determining a frequency of motion associated with the sprung mass;', 'when the frequency of motion associated with the sprung mass is below a first frequency threshold, sending a control signal to cause the actuator to apply a deceleration force to the sprung mass; and', 'when the frequency of motion associated with the sprung mass exceeds the first frequency threshold, sending a control signal to cause the actuator to apply a compensatory force to the sprung mass, wherein a magnitude of the compensatory force is based on a friction force determined for the damper., 'a controller configured to perform operations comprising2. The system as recited in claim 1 , the operations further comprising:determining a lateral acceleration associated with the sprung mass;when the lateral acceleration is below a lateral acceleration threshold, causing the actuator to apply the compensatory force to the sprung mass; andwhen the lateral acceleration ...

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21-01-2021 дата публикации

SWITCHING VALVE FOR AN AIR SPRING ARRANGEMENT AND AN AIR SPRING ARRANGEMENT

Номер: US20210016622A1
Автор: Sprengel Thomas

A switching valve for an air spring arrangement of a motor vehicle, which switching valve has a valve housing arrangement which, in the installed state, is arranged between a first air volume and a second air volume. A valve closing member arrangement is actuatable by an actuator is provided such that the valve closing member arrangement, in a first position, fluidically connects the first air volume to the second air volume and, in a second position, fluidically separates the first air volume from the second air volume. The valve closing member arrangement is designed as a rotary slide arrangement. A rotary slide member with first openings is provided between two valve closing bodies, wherein, in the first position, the first openings correspond with second openings of the valve closing body such that a fluidic connection can be produced between the first and the second air volume. 1. A switching valve for an air spring arrangement of a motor vehicle , the switching valve comprising:a valve housing arrangement which, in an installed state, is arranged between a first air volume and a second air volume,a valve closing member arrangement which is actuatable by way of an actuator, between a first position that fluidically connects the first air volume to the second air volume and, a second position that fluidically separates the first air volume from the second air volume,wherein the valve closing member arrangement is a rotary slide arrangement comprising two valve closing bodies and a rotary slide member with first openings and disposed between the two valve closing bodies,wherein, in the first position, the first openings register with second openings of the valve closing bodies such that a fluidic connection is produced between the first and the second air volume,wherein the rotary slide member and the two valve closing bodies have interacting sealing surfaces which are directed toward one another and which each have at least one helical run-on surface, which run- ...

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26-01-2017 дата публикации

VEHICLE HEIGHT ADJUSTMENT DEVICE

Номер: US20170021688A1
Принадлежит: Showa Corporation

A vehicle height adjustment device includes an actuator, a detector, and a controller. The actuator is driven when supplied with a current and is configured to change a relative position of a body of a vehicle relative to an axle of a wheel of the vehicle. The detector is configured to detect the relative position. The controller is configured to control the current supplied to the actuator to make the relative position a target value so as to adjust a vehicle height of the body. When a detection value of the detector is smaller than the target value of the relative position, the controller is configured to alternately supply an increase current and a maintenance current to the actuator. The increase current increases the relative position to increase the vehicle height. The maintenance current maintains the relative position to maintain the vehicle height. 1. A vehicle height adjustment device comprising:an actuator driven when supplied with a current and configured to change a relative position of a body of a vehicle relative to an axle of a wheel of the vehicle;a detector configured to detect the relative position; anda controller configured to control the current supplied to the actuator to make the relative position a target value so as to adjust a vehicle height of the body, the controller being configured to, when a detection value of the detector is smaller than the target value of the relative position, alternately supply an increase current and a maintenance current to the actuator, the increase current increasing the relative position to increase the vehicle height, the maintenance current maintaining the relative position to maintain the vehicle height.2. The vehicle height adjustment device according to claim 1 , wherein the controller is configured to alternately supply the increase current and the maintenance current to the actuator when a deviation obtained by subtracting the detection value of the detector from the target value of the relative ...

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26-01-2017 дата публикации

Securing attachments to work vehicles with suspension control

Номер: US20170021690A1
Принадлежит: Deere and Co

A system and a method for securing an attachment to work vehicle with a chassis and a suspension are described. A mounting frame with a frame attachment point disposed on a support can be attached to a work vehicle. The suspension can be caused to lower the mounting frame relative to ground by lowering the chassis of the work vehicle. The work vehicle can be maneuvered to align the frame attachment point with a corresponding attachment point on the attachment. The suspension can then be caused to raise the mounting frame relative to ground by raising the chassis of the work vehicle. The frame attachment point can thereby engage the corresponding attachment point on the attachment, as the mounting frame is raised, in order to lift the attachment, with the attachment being thereby supported by the work vehicle solely via the mounting frame.

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10-02-2022 дата публикации

METHOD OF OPERATING VEHICLE CONTROL SYSTEM

Номер: US20220041028A1
Принадлежит:

A vehicle control system, such as for an air suspension system of a vehicle, includes a control module having a sleep state and an awake state. Methods for operating the control system use a wake trigger to switch the control module, which is electrically coupled with a vehicle battery, from the sleep state to the awake state. 1. A method of operating a control system for an air suspension system of a vehicle having a battery and an air spring adapted to inflate and deflate in order to raise and lower the height of the vehicle , the method comprising:providing a control module, electrically coupled with the battery, with a default sleep state comprising a low power mode;generating a wake trigger to switch the control module from the sleep state to an awake state, wherein the wake trigger is at least one of a periodic wake trigger automatically generated after the elapse of a predefined time interval or an aperiodic wake trigger generated after the detection of movement of the vehicle; andswitching the control module from the awake state to back to the sleep state.2. The method of claim 1 , wherein the predefined time interval is 5-10 minutes.3. The method of claim 2 , wherein the predefined wake period is 3 minutes.4. The method of claim 1 , and further comprising determining if the vehicle is moving or not moving by monitoring sensors internal to the control system without monitoring a wired trigger input external to the control system.5. The method of claim 4 , wherein determining if the vehicle is moving comprises sensing pressure in a flow path between a pressure control valve and the air spring via a pressure sensor onboard the vehicle claim 4 , wherein if a pressure fluctuation detected in the sensed pressure does not exceed a pre-defined threshold claim 4 , the vehicle is determined to be not moving.6. The method of claim 4 , wherein determining if the vehicle is moving comprises sensing acceleration of the vehicle via an accelerometer onboard the vehicle ...

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24-01-2019 дата публикации

Estimating loads acting on a rear axle of a motor vehicle

Номер: US20190023096A1
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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23-01-2020 дата публикации

ELECTRONIC ANOMALY DETECTION UNIT FOR USE IN A VEHICLE, AND METHOD FOR DETECTING AN ANOMALY IN A COMPONENT OF A VEHICLE

Номер: US20200023858A1
Принадлежит: INFINEON TECHNOLOGIES AG

An electronic anomaly detection unit for use in a vehicle includes an input component for capturing an input variable, wherein the input variable contains state information for at least one component of the vehicle, a memory component for storing state values based on the input variable, a selection component for selecting selected state values from the stored state values, an association component for associating the selected state values with predefined values, wherein the predefined values define a normal state of the component of the vehicle, and a decision component for deciding whether there is an anomalous behavior in the at least one component of the vehicle, based on the association, wherein one or more of the input component, the memory component, the selection component, the association component and the decision component are implemented in hardware. 1. An electronic anomaly detection unit for use in a vehicle , the anomaly detection unit comprising:an input component configured to capture an input variable, wherein the input variable contains state information for at least one component of the vehicle;a memory component configured to store state values based on the input variable;a selection component configured to select selected state values from the stored state values;an association component configured to associate the selected state values with predefined values to form an association, wherein the predefined values define a normal state of the component of the vehicle; anda decision component configured to determine whether there is an anomalous behavior in the at least one component of the vehicle, based on the association,wherein one or more of the input component, the memory component, the selection component, the association component, and the decision component are implemented in hardware.2. The electronic anomaly detection unit as claimed in claim 1 , wherein the state information comprises a network activity claim 1 , at least one state ...

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28-01-2021 дата публикации

METHOD AND APPARATUS FOR AN ADJUSTABLE DAMPER

Номер: US20210023900A1
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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28-01-2021 дата публикации

Method of Anti-Roll Moment Distribution

Номер: US20210023902A1
Принадлежит:

A method of producing an anti-roll moment distribution module for a vehicle comprises determining understeer characteristics of the vehicle, determining a maximum lateral acceleration of the vehicle, adjusting understeer characteristics of the vehicle based on the maximum lateral acceleration, determining reference understeer characteristics, determining a plurality of reference yaw rates based on (i) the maximum lateral acceleration and (ii) the reference understeer characteristics using a non-linear quasi static vehicle model, storing the plurality of reference yaw rates in a first look up table in the anti-roll moment distribution module, determining a plurality of feedforward contributions using the non-linear quasi static model of the vehicle. Each feedforward contribution of the plurality of feedforward contributions can be used to determine a front to total anti-roll moment distribution for the vehicle. The plurality of feedforward contributions are stored in a second look up table in the anti-roll moment distribution module. 1. A method of producing an anti-roll moment distribution module for a vehicle , comprising:determining understeer characteristics of the vehicle;determining a maximum lateral acceleration of the vehicle;adjusting the understeer characteristics of the vehicle based on the determined maximum lateral acceleration;determining reference understeer characteristics;determining a plurality of reference yaw rates based on (i) the maximum lateral acceleration and (ii) the reference understeer characteristics using a non-linear quasi-static model of the vehicle;storing the plurality of reference yaw rates in a first look-up table in the anti-roll moment distribution module;determining a plurality of feedforward contributions using the non-linear quasi-static model of the vehicle, wherein each feedforward contribution of the plurality of feedforward contributions can be used to determine a front-to-total anti-roll moment distribution for the ...

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28-01-2021 дата публикации

Method for determining a desired speed of a vehicle

Номер: US20210023903A1
Принадлежит: Volvo Truck Corp

The present invention relates to a method for determining a desired speed of a vehicle (1), preferably an autonomous vehicle. The vehicle comprises a shock absorber arrangement (2), preferably an hydraulic shock absorber arrangement, having an elastic hysteresis. The method comprises—obtaining (501) a reference value indicative of the energy dissipated by the shock absorber arrangement (2) in a reference driving condition of a vehicle and—determining (502) a speed of the vehicle for which the value indicative of the energy dissipated by the shock absorber arrangement (2) in a similar driving condition is expected to fall within a predetermined energy dissipation range, using said reference value.

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10-02-2022 дата публикации

AUTOMATED ROAD DAMAGE DETECTION

Номер: US20220044034A1
Принадлежит:

A vehicle safety system and technique are described. In one example, a vehicle safety system communicably coupled to a vehicle, comprises processing circuitry coupled to a camera unit and a LiDAR sensor, the processing circuitry to execute logic operative to analyze an image captured by one or more cameras to identify predicted regions of road damage, correlate LiDAR sensor data with the predicted regions of road damage, analyze the LiDAR sensor data correlated with the predicted regions of road damage to identify regions of road damage in three-dimensional space; and output one or more indications of the identified regions of road damage, wherein the processing circuitry is coupled to an interface to the vehicle, the processing circuitry to output an identification of road damage. 1. A method of detecting road damage:analyzing an image captured by one or more cameras to identify predicted regions of road damage;correlating point cloud data from at least one LiDAR sensor with the predicted regions of road damage;analyzing the point cloud data from the at least one LiDAR sensor data correlated with the predicted regions of road damage to identify regions of road damage in three-dimensional space; andoutputting one or more indications of the identified regions of road damage.2. The method of claim 1 , wherein analyzing the image further comprises identifying the predicted regions of road damage using a machine learning model that is trained using images having annotated regions of road damage claim 1 , wherein the machine learning model comprises at least one of a deep-learning structure or a feature-based classifier.3. The method of claim 1 , wherein analyzing the image claim 1 , correlating the point cloud data from the at least one LiDAR sensor claim 1 , and analyzing the point cloud data from the at least one LiDAR sensor further comprises:applying a first model to two-dimensional image data to identify the predicted regions of road damage, wherein the second ...

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28-01-2021 дата публикации

Damping valve and shock absorber

Номер: US20210025471A1
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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02-02-2017 дата публикации

ELECTRIC VEHICLE

Номер: US20170028983A1
Автор: FUKUDOME Hideki
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

An electric vehicle includes electric motors imparting driving forces to the corresponding driving wheels, a brake device imparting braking forces to the driving wheels, a control unit which calculates final target braking-driving forces (Tti) of the driving wheels and controls the electric motors and the brake device so that braking-driving forces of the driving wheels conform to the corresponding final target braking-driving forces. The control unit calculates longitudinal speeds (ΔVi) of the wheels relative to a vehicle body; calculates target correction amounts (Tt) of the target braking-driving forces for reducing in magnitude longitudinal speeds of the driving wheels relative to the vehicle body based on the relative longitudinal speeds; and corrects the target braking-driving forces (Tt) with the target correction amounts (Tt) to calculate final target braking-driving forces (Tti) of the driving wheels. 1. An electric vehicle comprising:driving wheels suspended from a vehicle body by suspensions configured to resiliently allow the driving wheels to displace longitudinally relative to the vehicle body,electric motors configured to impart driving forces to the corresponding driving wheels independently from each other,a brake device configured to impart braking forces to the driving wheels independently from each other,a controller configured to calculate, for at least one wheel of the electric vehicle, final target braking-driving forces of the driving wheels, and control, for the at least one wheel, an electric motor of the electric motors or the brake device so that braking-driving forces of the driving wheels conform to the corresponding final target braking-driving forces, 'the controller is configured to, for the at least one wheel, calculate relative longitudinal speeds of the driving wheels which are relative to the vehicle body; calculate target correction amounts of the target braking-driving forces for reducing in magnitude longitudinal accelerations ...

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02-02-2017 дата публикации

VEHICLE FUEL ECONOMY BY OPTIMIZING EFFECTIVE TIRE ROLLING RESISTANCE

Номер: US20170029050A1
Принадлежит:

The subject matter of the present invention relates generally to a vehicle that has axles with tires mounted thereon with at least one axle that is a lift axle, and more specifically, to a method that optimizes the effective tire rolling resistance by adjusting the load on the tires, resulting in an improvement in the fuel economy of the vehicle. According to one embodiment, the method takes into consideration the rolling resistance characteristics of the tires placed onto the axles of the vehicle and provides an algorithm for optimizing their rolling resistance by raising or lowering the lift axle. 1. A vehicle suspension system for improving a fuel economy of a vehicle by optimizing effective tire rolling resistance , the vehicle suspension system comprising:an at least one principal axle;an at least one lift axle;an at least one tire mounted on each of the axles;a memory for storing instructions, data or programs having algorithms;load sensors for determining a load on each of the principal and lift axles;a lift mechanism for lowering or raising the lift axle;at least one processing device in communication with said memory, said load sensors, said lift mechanism, said at least one processing device configured for:determining whether a total load carried by the vehicle is greater than a sum of maximum allowable axle load multiplied by a number of lift axles added to a minimum allowable axle load necessary multiplied by a number of principal axles; ordetermining whether the total load carried by the vehicle is less than or equal to the sum of maximum allowable axle load multiplied by the number of lift axles added to the minimum allowable axle load necessary multiplied by the number of principal axles while also being greater than the total number of axles multiplied by the minimum allowable axle load necessary, ordetermining whether the total load carried by the vehicle is less than or equal to a total number of axles multiplied by minimum allowable axle load ...

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24-04-2014 дата публикации

THREE WHEEL VEHICLE ELECTRONIC STABILITY SYSTEM AND CONTROL STRATEGY THEREFOR

Номер: US20140114546A1
Принадлежит: BOMBARDIER RECREATIONAL PRODUCTS INC.

A method for enhancing stability of a three wheel vehicle having a pair of front wheels and a single rear wheel, each of the wheels having a tire with a tire grip threshold. The method including deploying an electronic stability system (ESS) on the vehicle, providing the ESS with input from various vehicle sensors related to the longitudinal and lateral acceleration of the vehicle, causing the ESS to determine whether (i) a precursory condition indicative of a wheel lift exists and (ii) the tire grip threshold of any of the tires has been exceeded; and when a precursory condition indicative of a wheel lift exists and the tire grip threshold of none of the tires has been exceeded, causing the ESS to reduce the longitudinal acceleration of the vehicle by a first amount less than that which would cause the tire grip threshold of any of the tires to be exceeded. 1. A three wheel vehicle having:a frame,a pair of front wheels, the front wheels being connected to the frame via a front suspension, each of the front wheels having a tire, the tire having a tire grip threshold,a single rear wheel, the rear wheel being connected to the frame via a rear suspension, the rear wheel having a tire, each of the tires having a tire grip threshold,an engine supported by the frame and operatively connected to at least one of the wheels to provide power to propel the vehicle,a braking system including brakes associated with each of the wheels to brake the vehicle,a steering system operatively connected to the front wheels to steer the vehicle,a seat disposed on the frame, the seat being suitable for accommodating at least a driver of the vehicle, the tire grip thresholds of tires being, for a set of combinations of lateral and longitudinal accelerations that the vehicle may undergo, greater than a wheel lift threshold of a vehicle, such that the vehicle experiences wheel lift before the tires lose grip,a plurality of sensors arranged on the vehicle so as to provide electronic signals ...

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01-02-2018 дата публикации

Method and device for performing open-loop control of a driver's cab mount

Номер: US20180029651A1
Принадлежит: MAN Truck and Bus SE

A method for performing open-loop or closed-loop control of a driver's cab mount of a motor vehicle, wherein the driver's cab mount has dampers whose damper force can be adjusted, wherein the motor vehicle can be operated a first driving mode in which the motor vehicle automatically carries out vehicle guidance comprising both a longitudinal guidance operation and a transverse guidance operation of the motor vehicle, and in a second driving mode where the motor vehicle can be controlled by the driver, in which driving mode a driver of the motor vehicle is intended to carry out at least part of the vehicle guidance himself, wherein when the motor vehicle is operated in the first driving mode, the adjustable dampers of the driver's cab mount are actuated or adjusted in such a way that pitching or rolling movements are reduced compared to the second driving mode.

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17-02-2022 дата публикации

VEHICULAR SHOCK-ABSORBING DEVICE USING WHEEL DEFORMATION MECHANISM

Номер: US20220048351A1
Автор: TADA SHIGEKI
Принадлежит:

[Technical Field] The present invention relates to a wheel deformation mechanism and a structure of a vehicular shock-absorbing device using the mechanism. [Technical Problem] In the conventional suspension device, there are problems that a vibration damping effect for an in-wheel motor vehicle is too low to alleviate an impact on the wheel and that a mounting space is required on the vehicle body side. There is a problem that since the conventional tire is poor in ability to absorb distortion of a contact patch caused by turning, the contact patch of the wheel is subjected to horizontal friction at the time of direction change. [Solution] An expansion and contraction mechanism as shown in that connects two rotors and a band-shaped tread by a movable arm is incorporated in a wheel, [Main Use of Invention] The vehicle wheel is expanded and contracted by a rotation speed difference between the two rotors so as to control the posture of the vehicle body. 1. An expandable and contractable wheel structure comprising:two rotors that share a rotation shaft;a plurality of arms each of which bends at a central part of the each arm, both ends of each arm being connected to respective ones of the two rotors; andtreads each attached to a bending point of one of the arms,a vehicular shock-absorbing device that alleviates an impact and a vibration given to a vehicle from a road surface by converting the impact and the vibration into rotational kinetic energy of the rotors by using a crank motion of the arms and the rotors and using expansion and contraction of an outer diameter of the wheel,a component shape in which an outer periphery of the wheel is maintained at a curvature closer to a circular shape by causing axe-shaped leaf springs provided at parts of the bending of the arms to also serve to maintain a shape of the tread, anda vehicular steering assist mechanism in which the plurality of arms and the tread are deformed to distribute and absorb a horizontal distortion ...

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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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01-02-2018 дата публикации

Method for detecting an inclination of a wheel relative to the horizontal

Номер: US20180030910A1

Disclosed is a method for detecting an inclination, relative to the ground, of a wheel of a motor vehicle which includes: —measuring two accelerations by using two accelerometers mounted on the wheel and suitable for measuring the acceleration of the wheel along a first axis and along a second axis, respectively, the first axis and the second axis being in the plane of the wheel and orthogonal, and —calculating the components of a gravity vector in a reference frame formed by the first axis and the second axis from the measurements of acceleration, —determining a modulus of the gravity vector from the calculated components, and —determining a position of inclination of the wheel relative to the ground by comparing the value of the modulus of the gravity vector with a predetermined value.

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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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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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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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04-02-2021 дата публикации

METHOD AND APPARATUS FOR AN ADJUSTABLE DAMPER

Номер: US20210031582A1
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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04-02-2021 дата публикации

VIBRATION DAMPER COMPRISING A LEAKAGE INDICATOR, LEAKAGE INDICATOR, METHOD FOR INDICATING A LEAK IN A VIBRATION DAMPER AND COLOUR CHANGE INDICATOR FOR USE AS LEAKAGE INDICATOR

Номер: US20210033162A1
Принадлежит:

A vibration damper for vehicles includes a damper tube which is at least partially filled with damper medium and which has a longitudinal axis along which a piston rod is movable back and forth. A working piston is movable jointly with the piston rod, by means of which working piston the interior space of the damper tube is divided into a piston-rod-side working space and a piston-rod-remote working space. The vibration damper has a leakage indicator for the damper medium. 111.-. (canceled)12. A vibration damper for vehicles , comprising:a damper tube comprising an interior space which is at least partially filled with damper medium and which has a longitudinal axis and an outer wall,a piston rod movably disposed in the damper tube,a working piston movable jointly with the piston rod, the working piston configured to divide the interior space of the damper tube into a piston-rod-side working space and a piston-rod-remote working space, anda leakage indicator configured to detect leakage of damper medium from the damper, wherein the leakage indicator comprises at least one indicator reaction composition for reaction with the damper medium upon contact therewith, and wherein the leakage indicator is at least partially covered by at least one protective element.13. The vibration damper of wherein the leakage indicator is arranged in an at least partially radially encircling manner on the damper tube.14. The vibration damper of wherein the leakage indicator has at least one distributing element configured to at least partially distribute the damper medium at least partially in a circumferential direction of the damper tube upon contact of the damper medium with the leakage indicator.15. The vibration damper of wherein the leakage indicator comprises at least one color change composition.16. A method for indicating a leakage of a vibration damper claim 12 , the damper comprising a damper tube comprising an interior space which is at least partially filled with damper ...

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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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31-01-2019 дата публикации

VEHICLE CALIBRATION BASED UPON PERFORMANCE PRODUCT DETECTION

Номер: US20190035174A1
Принадлежит:

Method and apparatus are disclosed for vehicle calibration based upon performance product detection. An example vehicle includes a receiver to receive a wireless signal from a transducer of an performance product that includes characteristics of the performance product. The example vehicle also includes a product controller to authenticate the performance product based upon the wireless signal and send, upon authentication, a calibration instruction that includes the characteristics. The example vehicle also includes an electronic control unit to receive the calibration instruction and adjust a calibration to a target setting based upon the characteristics. 1. A vehicle comprising:a receiver to receive a wireless signal from a transducer of an performance product that includes characteristics of the performance product; authenticate the performance product based upon the wireless signal; and', 'send, upon authentication, a calibration instruction that includes the characteristics; and, 'a product controller to receive the calibration instruction; and', 'adjust a calibration to a target setting based upon the characteristics., 'an electronic control unit to2. The vehicle of claim 1 , wherein the receiver is a short-range wireless module or an RFID reader.3. The vehicle of claim 1 , wherein the performance product is an aftermarket product.4. The vehicle of claim 1 , further including a display in communication with the product controller that presents information corresponding to the characteristics of the performance product and the calibration of the electronic control unit.5. The vehicle of claim 1 , wherein the product controller is to:determine whether the performance product affects performance of the electronic control unit based upon the characteristics of the performance product and identification of the electronic control unit; andsend the calibration instruction to the electronic control unit upon determining that the performance product affects the ...

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31-01-2019 дата публикации

Driving Assistance Method and Device

Номер: US20190035278A1
Принадлежит:

A driving assistance method includes extracting interference traffic line that is a route along which another vehicle can move and that interfere with a planned travel route of a subject vehicle, selecting an interference traffic line of another vehicle necessary for determining a driving action of the subject vehicle from among the extracted interference traffic lines on the basis of at least one of a road shape, a traffic rule, and a traffic situation, and determining the driving action of the subject vehicle to respond to another vehicle moving along the selected interference traffic line. 111.-. (canceled)12. A driving assistance method comprising:extracting interference traffic line interfering with a planned travel route of a subject vehicle, the interference traffic line being a route along which another vehicle can move;selecting an interference traffic line necessary for determining a driving action of the subject vehicle from among the extracted interference traffic lines on a basis of at least one of a road shape, a traffic rule, and a traffic situation;determining the driving action of the subject vehicle to respond to another vehicle moving along the selected interference traffic line; andwhen a state of a traffic signal corresponding to the selected interference traffic line of another vehicle changes from a passable state to an impassable state, switching the selected interference traffic line to unselected one by reducing a length of the selected interference traffic line.13. The driving assistance method according to claim 12 , comprisingwhen the state of the traffic signal corresponding to the selected interference traffic line changes from the passable state to the impassable state, reducing the length of the selected interference traffic line at a decrease amount per unit time in accordance with a vehicle speed of another vehicle moving along the selected interference traffic line.14. A driving assistance method comprising:extracting interference ...

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08-02-2018 дата публикации

Method Of Operating A Motor Vehicle, And Motor Vehicle

Номер: US20180037080A1
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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08-02-2018 дата публикации

METHOD FOR COMPENSATING FOR VERTICAL MOVEMENTS

Номер: US20180037081A1
Принадлежит: Audi AG

The invention relates to a method for compensating for vertically oriented movements of a superstructure of a vehicle. The vehicle is provided with the superstructure and with an active undercarriage having a plurality of wheel which are in contact with the carriageway, wherein each wheel is connected via an actuator adjustable over its length at a wheel assigned to a suspension point with the superstructure. Vertically oriented movements of the superstructure are caused by an inclination of the carriageway and by unevennesses of the carriageway, a first change of the length of at least one actuator is carried out for frequencies in a first, lower frequency range, and a second change of the length of the at least one actuator is carried out for frequencies in a second, higher frequency range. 123-. (canceled)24. A method for compensating for vertically oriented movements of a superstructure of a vehicle , wherein the vehicle is provided with the superstructure and with an active undercarriage having several wheels which are in contact with the carriageway , wherein each wheel is connected by means of an actuator which is adjustable over its length to a suspension point assigned to a wheel with the superstructure , comprising:the vertically oriented movements of the superstructure are caused by an inclination of the carriageway and by unevennesses of the carriageway,a first change of the length of at least one actuator is carried out for compensating for the inclination of the carriageway for frequencies in a first, lower frequency range, which is limited by a first minimum frequency and a first maximum frequency, anda second change of the length of the at least one actuator is carried out for compensating for unevennesses of the carriageway for frequencies in a second, higher frequency range, which is limited by a second minimum frequency and a second maximum frequency.25. The method according to claim 24 , wherein the first maximum frequency is lower than the ...

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08-02-2018 дата публикации

METHOD FOR COMPENSATING FOR AN INCLINATION

Номер: US20180037082A1
Принадлежит: Audi AG

A method for compensating for an inclination of a vehicle in at least one spatial direction. The vehicle has a vehicle body and an active chassis with a plurality of wheels, which are in contact with the roadway. Each wheel is joined to the vehicle body by way of an actuator, which can be adjusted in terms of its length, at a suspension point associated with the wheel. An inclination of the vehicle body in the at least one spatial direction is determined. For at least two wheels, respectively, a vertical distance to the suspension point of the vehicle body that is associated with the particular wheel is detected. Via the at least two determined distances, an inclination of the chassis in the at least one spatial direction is calculated by transformation of the vertical distance of the at least two wheels to the vehicle body. 111-. (canceled)14. The method according to claim 13 , wherein the translation ratios I claim 13 , iare calculated by way of a distance of an actuator from the center of gravity of the vehicle body in each case claim 13 , and of a wheel from the center of gravity of the vehicle body in each case.15. The method according to claim 12 , wherein claim 12 , in the presence of an upward slope travel claim 12 , a negative angle of pitch θis determined claim 12 , and claim 12 , in the presence of downward slope travel claim 12 , a positive angle of pitch θis determined.17. The method according to claim 16 , wherein a value of θin the case of upward slope travel is chosen to be greater than a value of θin the case of downward slope travel.18. The method according to claim 12 , wherein claim 12 , for the determination of the inclination of the vehicle body claim 12 , a first claim 12 , coordinate system that is fixed relative to the vehicle body is used claim 12 , and claim 12 , for the determination of the inclination of the chassis claim 12 , a second chassis-fixed coordinate system is used claim 12 , and wherein a third claim 12 , inertial coordinate ...

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09-02-2017 дата публикации

HYDRAULIC SHOCK ABSORBER WITH COMPRESSION FILTERING

Номер: US20170037923A1
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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24-02-2022 дата публикации

No roll torsion bar

Номер: US20220055437A1
Автор: Aaron Weidenaar

Methods, systems, devices and apparatuses for a torsion bar system. The torsion bar system includes a first torsion bar. The first torsion bar is configured to adjust a ride height of a first wheel of a vehicle. The torsion bar system includes a first actuator. The first actuator is coupled to the first torsion bar. The first actuator is configured to control a load on the first torsion bar. The torsion bar system includes an electronic control unit. The electronic control unit is coupled to the first actuator. The electronic control unit is configured to set a position of the first torsion bar using the first actuator and based on the load on the first torsion bar.

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07-02-2019 дата публикации

VEHICLE ATTITUDE CONTROL DEVICE

Номер: US20190039429A1
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A vehicle attitude control device includes a controller including a low-pass filter. The controller calculates a manipulated variable of the actuator that allows the roll of the vehicle to be suppressed. The controller processes the roll angle acceleration with the low-pass filter, integrates the roll angle acceleration in which a high-frequency component has been removed by the low-pass filter, and converts a roll angle velocity obtained by the integration, into the manipulated variable. The low-pass filter has a first vehicle speed-cutoff frequency characteristic in which a cutoff frequency becomes higher with increase in the vehicle speed, and the first vehicle speed-cutoff frequency characteristic is designed such that a peak frequency in roll vibration coincides with a local minimum roll frequency in wheelbase filtering, the roll vibration being amplified by a dead time and a phase delay in control by the controller. 1. A vehicle attitude control device comprising:an actuator configured to actively act on roll of a vehicle;a roll angle acceleration sensor configured to measure a roll angle acceleration of the vehicle;a speed sensor configured to measure a vehicle speed of the vehicle; anda controller including a low-pass filter, the controller being configured to calculate a manipulated variable of the actuator based on the roll angle acceleration and the vehicle speed, the manipulated variable being a manipulated variable that allows the roll of the vehicle to be suppressed, wherein to process the roll angle acceleration with the low-pass filter,', 'to integrate the roll angle acceleration in which a high-frequency component has been removed by the low-pass filter, and', 'to convert a roll angle velocity obtained by the integration, into the manipulated variable,, 'the controller is configured'}the low-pass filter has a first vehicle speed-cutoff frequency characteristic in which a cutoff frequency becomes higher with increase in the vehicle speed, andthe ...

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07-02-2019 дата публикации

SYMMETRICALLY DYNAMIC EQUALIZED VOLUME AND PRESSURE AIR MANAGEMENT SYSTEM

Номер: US20190039431A1
Принадлежит: BASE Air Management, Inc.

An air management system for a vehicle having a supply tank, a system controller integrated with the supply tank, a first pneumatic circuit pneumatically connected to the system controller, and a second pneumatic circuit pneumatically connected to the system controller. The system controller adjusts independently air pressure of the first pneumatic circuit and the second pneumatic circuit without establishing pneumatic communication between the first and second pneumatic circuits. The system controller establishes pneumatic communication between the first and second pneumatic circuits when the system controller is not adjusting independently the air pressure of the first pneumatic circuit and the second pneumatic circuit. 1. An air management system for leveling a vehicle operated under dynamic driving conditions , the air management system comprising:a supply tank;a compressor operatively connected to the supply air tank;a system controller integrated with the supply tank;a first pneumatic circuit comprising one or more air springs disposed on a first side of the vehicle and one or more air lines pneumatically connecting the one or more air springs with the system controller;a second pneumatic circuit comprising one or more air springs disposed on a second side of the vehicle and one or more air lines pneumatically connecting the one or more air springs with the system controller; andwherein the system controller is configured to adjust independently air pressure of the one or more air springs of the first pneumatic circuit and adjust independently air pressure of the one or more air springs of the second pneumatic circuit without establishing pneumatic communication between the first and second pneumatic circuits;wherein the system controller is configured to establish pneumatic communication between the first and second pneumatic circuits when the system controller is not adjusting independently the air pressure of the one or more air springs of the first ...

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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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18-02-2021 дата публикации

METHOD AND DEVICE FOR DETECTING VEHICLE TURNING

Номер: US20210046797A1
Принадлежит:

A method and device utilizing pressure and/or height measurements across an axle of a vehicle to detect when the vehicle turns and, when a turn is detected, a control action is taken to avoid pneumatic pressure loss by inhibiting active leveling via the height adjustable suspension. 1. A method for detecting vehicle turning using an electronic controller based on readings from a pair of sensors located on an axle of the vehicle , the method comprising:the electronic controller receiving from the pair of sensors a left reading and a right reading, wherein the pair of readings comprise height readings or pressure readings;the electronic controller calculating a comparison based on the left reading and the right reading;the electronic controller detecting a turn when the comparison varies from a bias by greater than a threshold; andthe electronic controller signaling when a turn is detected.2. The method of claim 1 , wherein:the pair of sensors include a pair of pressure sensors and a pair of height sensors;the received left reading comprises a left pressure reading received by the electronic controller from the pair of pressure sensors and a left height reading received by the electronic controller from the pair of height sensors;the received right reading comprises a right pressure reading received by the electronic controller from the pair of pressure sensors and a right height reading received by the electronic controller from the pair of height sensors; a pressure comparison calculated by the electronic controller based on the left pressure reading and the right pressure reading; and', 'a height comparison calculated by the electronic controller based on the left height reading and the right height reading;, 'the calculated comparison includesthe threshold includes a pressure threshold and a height threshold;the bias includes a pressure bias and a height bias;the electronic controller detects a turn (1) when the pressure comparison varies from the pressure bias by ...

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12-02-2015 дата публикации

WADING VEHICLE CONTROL SYSTEM

Номер: US20150046032A1
Принадлежит: JAGUAR LAND ROVER LIMITED

A vehicle having a system for determining that there is a possibility that the vehicle has or is about to enter water at a vehicle wading depth. In response to determining that there is a possibility that the vehicle has or is about to enter water at a vehicle wading depth, the system is configured to implement one or more vehicle control strategies. The system comprises at least one remote sensor configured to remotely detect the presence of water about or ahead of the vehicle. 123-. (canceled)24. A system for determining that there is a possibility that a land vehicle is about to travel through water at a vehicle wading depth wherein an exhaust tailpipe of the vehicle is submerged in water , the system comprising:at least one remote sensor configured to remotely detect the presence of water about or ahead of the vehicle at a control threshold depth, wherein said control threshold depth is below said wading depth; anda controller configured to, in response to said determining, implement one or more vehicle control strategies in dependence on said detection of the presence of water at said control threshold depth.25. A system according to wherein determining that there is a possibility that a land vehicle is about to travel through water at said vehicle wading depth comprises the system being configured to determine one or more of: a possibility that the vehicle is about to enter water of at least 200 mm in depth and that the vehicle body is about to be at least partially immersed in water; and in response to said determining the system is configured to implement one or more vehicle control strategies before the vehicle enters into water of at least 200 mm in depth and/or before the vehicle body is at least partially immersed in water.26. A system according to wherein said at least one remote sensor(s) comprises at least one ultrasonic transducer sensor.27. A system according to wherein the at least one remote sensor is configured to remotely detect the presence of ...

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12-02-2015 дата публикации

Vehicle control device, and vehicle control method

Номер: US20150046034A1
Автор: Hironobu Kikuchi
Принадлежит: Nissan Motor Co Ltd

A vehicle control device includes a sensor and a controller. The sensor detects wheel speed. The controller estimates sprung mass state based on detected information in a prescribed frequency range. The controller controls a variable-damping force shock absorber to bring the estimated sprung mass state to a target sprung mass state. The controller estimates wheel rim braking/drive torque acting on a wheel. The controller determines the estimation accuracy of the sprung mass state has deteriorated when a rate of change of a stationary component extracted from components of wheel rim braking/drive torque acting on a wheel is detected to equal or exceed a prescribed value. The controller controls the variable-damping force shock absorber to a more limited extent than when the estimation accuracy has not deteriorated.

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18-02-2016 дата публикации

RIDE PERFORMANCE OPTIMIZATION IN AN ACTIVE SUSPENSION SYSTEM

Номер: US20160046166A1
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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18-02-2016 дата публикации

Method for reducing the risk of rollover of an automotive vehicle provided with a controllable suspension system

Номер: US20160046167A1

A method for reducing the rollover risk of an automotive vehicle includes: a first step of calculating, on the basis of a plurality of signals delivered by sensors ( 28, 29 ) of the controllable suspension system, a measured quantity (TCm) as an active value (TC) of a load transfer; a second step of calculating an estimated quantity (TCe), on the basis of signals delivered by kinematic sensors ( 50 - 58 ) placed onboard the vehicle and a dynamic model of the vehicle, the estimated quantity being taken as an active value of the load transfer when the measured quantity is not available; a step of evaluating the rollover risk on the basis of the active value (TC) of the load transfer; and, in the event of increased rollover risk; and a step of the emission of a safety signal (S).

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07-02-2019 дата публикации

REDUNDANT ACTIVE CONTROL SYSTEM COORDINATION

Номер: US20190041837A1
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Methods, systems, and vehicles are provided for controlling an active control system for a vehicle. In one embodiment, a method for controlling an active control system includes determining a health of a first control system, via a first processor of the first control system; determining a health of a second control system, via a second processor of the second control system; selectively controlling the active control system with instructions from the first control system or the second control system, based on the health of the first control system and the second control system; and selectively controlling communications from the first control system and the second control system, based on the health of the first control system and the second control system. 1. A method for controlling an active control system for a vehicle , the method comprising:determining a health of a first control system, via a first processor of the first control system;determining a health of a second control system, via a second processor of the second control system;selectively controlling the active control system with instructions from the first control system or the second control system, based on the health of the first control system and the second control system; andselectively controlling communications from the first control system and the second control system, based on the health of the first control system and the second control system.2. The method of claim 1 , wherein claim 1 , when no faults are detected for the first and second control systems:the active control system is controlled in a full operation mode in accordance with instructions provided by the first control system; andcommunications are provided from both the first control system and the second control system.3. The method of claim 2 , wherein: the active control system is controlled in a degraded mode in accordance with instructions provided by the second control system; and', 'communications are provided from ...

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15-02-2018 дата публикации

TRANSPORT TRAILER LOAD BALANCING SUSPENSION AND STEERING SYSTEMS

Номер: US20180043741A1
Автор: Behrens Randall Dean
Принадлежит: PREMIER COIL SOLUTIONS, INC.

A multi-axle transport trailer having a plurality of axles includes a suspension comprising air bags associated with each axle, the air bags in communication with an air source, wherein air bags associated with different axles are capable of having different air pressures therein. The trailer further optionally includes a steering system associated with at least one axle, the axle including a tie rod connected between wheels on both ends of the axle, the steering system comprising cylinders configured to articulate the wheels, and a sensing device configured to monitor movement of the tie rod and facilitate actuating the cylinders to turn the wheels. 1. A method of operating a multi-axle transport trailer in reverse , the trailer comprising suspension air bags in communication with an air source and associated with each axle , and a steering system associated with an axle including a tie rod connected between wheels on both ends of the axle and a control valve configured to operate cylinders to articulate the wheels , the method comprising:transmitting a signal to the control valve when the trailer is moved in reverse;reducing air pressure within air bags associated with axles having wheels to be articulated; andactuating the cylinders to articulate the wheels in a direction determined by a sensing cylinder coupled to the tie rod.2. The method of claim 1 , further comprising monitoring pressure within accumulators in fluid communication with each end of the sensing cylinder.3. A steering system associated with at least one axle of a multi-axle transport trailer claim 1 , the axle including a tie rod connected between wheels on both ends of the axle claim 1 , the steering system comprising:steering cylinders configured to articulate the wheels;a sensing cylinder coupled to the tie rod and configured to monitor movement of the tie rod;a first accumulator in fluid communication with a first end of the sensing cylinder, and a second accumulator in fluid communication ...

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15-02-2018 дата публикации

HEAVY-DUTY VEHICLE AIR-RIDE SUSPENSION

Номер: US20180043743A1
Автор: Fulton R. Scott
Принадлежит:

An air-ride axle/suspension system for a heavy-duty vehicle. A frame and at least a pair of suspension assemblies support opposite ends of an axle for movement relative to the frame. An air spring is associated with one of the suspension assemblies that establishes a first relative position between the axle and the frame as a function of fluid pressure in the air spring. A tire and wheel assembly is operatively mounted to an end portion of the axle associated with the air spring. A sensor detects an inflation condition of the tire and wheel assembly. A venting system exhausts fluid pressure from the air spring to establish a second relative position between the axle and the frame that is different than the first relative position in response to detecting a predetermined inflation condition of the tire and wheel assembly. 1. An air-ride axle/suspension system for a heavy-duty vehicle , the heavy-duty vehicle having a frame and a pair of suspension assemblies supporting opposite ends of an axle for relative movement with the frame , the air-ride axle/suspension system comprising:an air spring associated with at least one of the suspension assemblies, the air spring establishing a first relative position between at least a portion of the axle and the frame as a function of fluid pressure in the air spring;a tire and wheel assembly operatively mounted to an end portion of the axle that is associated with the air spring;a sensor to detect an inflation condition of the tire and wheel assembly; anda venting system to exhaust fluid pressure from the air spring and establish a second relative position between the at least a portion of the axle and the frame that is different than the first relative position in response to detecting a predetermined inflation condition of the tire and wheel assembly.2. The air-ride axle/suspension system of further including a system for alerting an operator of the heavy-duty vehicle in response to the predetermined inflation condition of the ...

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03-03-2022 дата публикации

Slip control via active suspension for optimization of braking and accelerating of a vehicle

Номер: US20220063365A1
Принадлежит: ClearMotion Inc

System and method for improving braking efficiency by increasing the magnitude of a frictional force between a tire of a vehicle wheel and a road surface. Braking efficiency may be improved by controlling the normal force applied on the wheel, with an active suspension actuator, based on the wheel's slip ratio.

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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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03-03-2022 дата публикации

Ground load estimation device, control device, and ground load estimation method

Номер: US20220063638A1
Принадлежит: Hitachi Astemo Ltd

The present invention achieves a technique that makes it possible to estimate a ground contact load of a vehicle with sufficiently high accuracy. A ground contact load estimation device ( 100 ) acquires a wheel angular speed, a steady load, and an inertia load of a vehicle, uses the steady load and the inertia load to cause a first gain calculation section ( 122 ) to calculate a first gain, multiplies a variation in wheel angular speed by a second gain so as to cause a tire effective radius variation calculation section ( 121 ) to calculate a tire effective radius variation, and multiplies the tire effective radius variation by the first gain so as to estimate a road surface load.

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03-03-2022 дата публикации

Damper assembly including valve connectors having one-way valves

Номер: US20220065323A1
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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14-02-2019 дата публикации

SELF-PROPELLED VEHICLES WITH PITCH CONTROL

Номер: US20190047345A1
Автор: Dockter Nathan D.
Принадлежит:

Self-propelled vehicles that adjust the pitch of the vehicle during use are disclosed. The vehicle may include a suspension system position sensor and a control unit that adjusts a suspension element based at least in part on a signal from the suspension system position sensor. In some embodiments, the self-propelled vehicle may include an inclinometer for measuring the pitch of the terrain. 1. A self-propelled vehicle comprising:a chassis;first and second rear wheels connected to the chassis;first and second front wheels connected to the chassis;an inclinometer for sensing a ground pitch;a suspension system comprising a suspension element that enables one of the first and second rear wheels and first and second front wheels to move relative to the chassis;a suspension system position sensor, the sensor producing a signal based on the position of the suspension system relative to the chassis; anda control unit that receives signals from the suspension system position sensor, the control unit adjusting the suspension element based at least in part on the signal from the suspension system position sensor.2. The self-propelled vehicle as set forth in wherein the self-propelled vehicle comprises a controller configured to adjust the vehicle based on a signal from the inclinometer after the suspension element has been adjusted.3. The self-propelled vehicle as set forth in wherein the suspension element is a hydraulic cylinder.4. The self-propelled vehicle as set forth in wherein the self-propelled vehicle is a self-propelled baler.5. The self-propelled vehicle as set forth in wherein the self-propelled baler comprises a controller that presents a suggested bale position based at least in part on a signal from the inclinometer.6. The self-propelled vehicle as set forth in wherein the first and second front wheels are caster wheels and the first and second rear wheels are drive wheels.7. The self-propelled vehicle as set forth in wherein the suspension element is a ...

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14-02-2019 дата публикации

TRAILER PITCH CORRECTION WITH AIR SUSPENSION

Номер: US20190047346A1
Автор: Carpenter Kyle P.
Принадлежит: CONTINENTAL AUTOMOTIVE SYSTEMS, INC.

An air suspension system used for controlling trailer pitch angle between a vehicle and a trailer, where the air suspension system includes a plurality of corner assemblies, and a plurality of wheel locations, where each of the corner assemblies is located in proximity to a corresponding one of the wheel locations. The corner assemblies and the wheel locations are part of a vehicle, and a trailer is connected to the vehicle using a trailer hitch such that there is a pitch angle, which is the relative angle between the trailer and the vehicle. One or more of the corner assemblies are used to adjust the position of the vehicle such that the pitch angle is changed, and the vehicle is positioned as desired relative to the trailer. 1. An apparatus , comprising: a plurality of corner assemblies;', 'a plurality of wheel locations, each of the plurality of corner assemblies located in proximity to a corresponding one of the plurality of wheel locations;', 'a vehicle, the plurality of corner assemblies and the plurality of wheel locations being part of the vehicle;', 'a trailer connected to the vehicle;', 'a pitch angle being a relative angle between the trailer and the vehicle;', 'wherein one or more of the plurality of corner assemblies is used to adjust a position of the vehicle such that the pitch angle is changed, and the vehicle is positioned as desired relative to the trailer., 'an air suspension system, including2. The apparatus of claim 1 , further comprising:a first X-Y plane delineating the orientation of the vehicle;a second X-Y plane delineating the orientation of the trailer;wherein one or more of the plurality of corner assemblies is used to adjust the position of the vehicle such that the angle of the first X-Y plane relative to the second X-Y plane is as close to 180° as possible.3. The apparatus of claim 1 , the plurality of corner assemblies further comprising:at least one front corner assembly;at least one rear corner assembly;wherein the at least one ...

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14-02-2019 дата публикации

CONTROL APPARATUS OF DAMPING FORCE VARIABLE DAMPER, CONTROL SYSTEM, AND METHOD

Номер: US20190047347A1
Принадлежит: AISIN SEIKI KABUSHIKI KAISHA

A control apparatus of a damping force variable damper that controls the damping force variable damper includes: a controller configured to control a damping force variation rate at a time of variation in a damping force of the damping force variable damper to be a predetermined damping force variation rate which is smaller than a predetermined oil hammer occurrence damping force variation rate at which an oil hammer occurs. 1. A control apparatus of a damping force variable damper that controls the damping force variable damper , the control apparatus comprising:a controller configured to control a damping force variation rate at a time of variation in a damping force of the damping force variable damper to be a predetermined damping force variation rate which is smaller than a predetermined oil hammer occurrence damping force variation rate at which an oil hammer occurs.2. The control apparatus according to claim 1 ,wherein the predetermined damping force variation rate is made different between when increasing the damping force and when decreasing the damping force.3. The control apparatus according to claim 1 ,wherein the damping force variable damper controls the damping force thereof by current control, and the controller controls the damping force variable damper with a current variation rate corresponding to the damping force variation rate.4. The control apparatus according to claim 1 , further comprising:a target damping force calculation unit configured to calculate a target damping force, which is a damping force required for the damping force variable damper, based on an acceleration detection signal input from an acceleration sensor; anda present damping force calculation unit configured to calculate a present damping force based on a stroke speed, which is calculated from a signal input from a stroke sensor, and an actual current, which is currently supplied to the damping force variable damper,wherein, when the damping force variation rate, which is ...

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14-02-2019 дата публикации

METHOD AND ADJUSTMENT SYSTEM FOR KEEPING A VEHICLE ON COURSE DURING ROLL MOVEMENTS OF A VEHICLE BODY

Номер: US20190047348A1
Принадлежит: Audi AG

A method for keeping a vehicle on course by determining a lateral acceleration of the vehicle; establishing a desired lateral inclination of the vehicle depending on the lateral acceleration determined in step a); adjustment of at least one actuator of an active chassis device of the vehicle, so the vehicle takes on the desired lateral inclination determined in step b); and c) carrying out a compensatory engagement by adjustment of at least one actuator of an active chassis device of the vehicle, so the vehicle takes on the desired lateral inclination determined in step b), wherein, in step d), at least one additional compensatory engagement is carried out by an additional active chassis device for the at least partial compensation of a yaw movement of the vehicle caused by the adjustment of the at least one actuator of the active chassis device. 1. A method for keeping a vehicle on course comprising the following steps:a) determining a lateral acceleration of the vehicle:b) establishing a desired lateral inclination of the vehicle depending on the lateral acceleration determined in step a); 'wherein in that, d), at least one additional compensatory engagement is carried out by means of an additional active chassis device for at least partial compensation of a yaw movement of the vehicle caused by the adjustment of the at least one actuator of the active chassis device.', 'c) carrying out a compensatory engagement by adjustment of at least one actuator of an active chassis device of the vehicle, so that the vehicle takes on the desired lateral inclination determined in step b),'}2. The method according to claim 1 , wherein in that the at least one additional compensatory engagement is carried out synchronously in time with carrying out step c).3. The method according to claim 1 , wherein in that the at least one additional compensatory engagement is carried out based on an adjustment between a yaw rate measured using at least one sensor and a yaw rate that is ...

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14-02-2019 дата публикации

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

Номер: US20190047350A1
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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25-02-2021 дата публикации

APPARATUS AND METHOD FOR ADJUSTING HEIGHT OF VEHICLE

Номер: US20210053410A1
Автор: PARK Jun Sung
Принадлежит:

An apparatus for adjusting a height of a vehicle including a vehicle height adjustment unit configured to adjust a height of the vehicle; a hydraulic pressure supply unit configured to supply a hydraulic pressure supplied to a caliper from a braking device for braking of the vehicle to the vehicle height adjustment unit; and a control unit configured to control a hydraulic pressure supplied to the vehicle height adjustment unit from the braking device, by controlling the hydraulic pressure supply unit depending on whether a predetermined vehicle height adjustment condition is satisfied. 1. An apparatus for adjusting a height of a vehicle , comprising:a vehicle height adjustment unit configured to adjust a height of the vehicle;a hydraulic pressure supply unit configured to supply a hydraulic pressure supplied to a caliper from a braking device for braking of the vehicle, to the vehicle height adjustment unit; anda control unit configured to control a hydraulic pressure supplied to the vehicle height adjustment unit from the braking device, by controlling the hydraulic pressure supply unit depending on whether a predetermined vehicle height adjustment condition is satisfied.2. The apparatus according to claim 1 , further comprising:a vehicle height detection unit configured to detect a vehicle height,wherein the control unit controls the hydraulic pressure supply unit depending on a comparison result by comparing the vehicle height detected by the vehicle height detection unit with a predetermined target vehicle height.3. The apparatus according to claim 1 , wherein the hydraulic pressure supply unit comprises:a hydraulic pressure supply valve installed in the braking device, and configured to regulate a hydraulic pressure supplied from the braking device; anda hydraulic pressure line having one end connected to the hydraulic pressure supply valve and the other end connected to the vehicle height adjustment unit, and configured to supply a hydraulic pressure from the ...

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13-02-2020 дата публикации

VARIABLE RATE FLAT SPRING ARRANGEMENT

Номер: US20200047577A1
Принадлежит:

A suspension system for a vehicle is provided. The suspension system includes a first chassis rail extending longitudinally in an axial direction of the vehicle. The suspension system also includes a second chassis rail extending longitudinally in the axial direction of the vehicle. The suspension system further includes a transverse beam coupled to the first chassis rail and the second chassis rail. The suspension system yet further includes at least one leaf spring extending in a transverse direction of the vehicle, the at least one leaf spring having a spring rate that is actively variable. The suspension system also includes a fulcrum locator operatively coupled to the at least one leaf spring and to the transverse beam, the fulcrum locator in a sliding relationship with the at least leaf one spring. 1. A suspension system for a vehicle , the suspension system comprising:a first chassis rail extending longitudinally in an axial direction of the vehicle;a second chassis rail extending longitudinally in the axial direction of the vehicle;a transverse beam coupled to the first chassis rail and the second chassis rail;at least one leaf spring extending in a transverse direction of the vehicle, the at least one leaf spring having a spring rate that is actively variable; anda fulcrum locator operatively coupled to the at least one leaf spring and to the transverse beam, the fulcrum locator in a sliding relationship with the at least leaf one spring.2. The suspension system of claim 1 , wherein the fulcrum locator comprises a clamping element.3. The suspension system of claim 1 , further comprising:a first leaf spring element extending longitudinally in the axial direction of the vehicle, the first leaf spring element operatively coupled proximate ends thereof to the first chassis rail and at an intermediate location to an axle assembly of the vehicle; anda second leaf spring element extending longitudinally in the axial direction of the vehicle, the second leaf spring ...

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13-02-2020 дата публикации

SYSTEM AND METHOD FOR VEHICLE STABILIZATION

Номер: US20200047580A1
Принадлежит:

A vehicle stabilization system including a frame; a wheel; a control arm connected to the frame and the wheel; a fluid spring connected to the frame and the control arm; a stabilizer connected to the frame and operable between a retracted and extended position; a reservoir; and a fluid manifold connected to the fluid spring and the chamber, fluidly coupling the spring interior and stabilizer chamber to the reservoir interior. A vehicle stabilization method including maintaining an orientation of the vehicle frame, coupling the frame to a support surface using a stabilizer by introducing a fluid to a chamber of the stabilizer, and retracting a wheel by reducing a quantity of fluid within a fluid spring coupling the wheel to the frame. 2. The stabilization system of claim 1 , wherein the second spring end is configured to supply pneumatic pressure to a support surface claim 1 , wherein the extension direction is substantially normal to the support surface.3. The stabilization system of claim 1 , wherein:the actuator further comprises a floating piston comprising a first piston face and a second piston face opposing the first piston face, the second piston face bounding the first chamber;the floating piston fluidly isolates the first chamber from a volume opposing the first chamber across the floating piston; andin the extension mode, the manifold interior fluidly couples the first piston face to the reservoir interior.4. The stabilization system of claim 3 , wherein:the extendible member comprises an interior sidewall substantially rigidly coupled to the first member end, the interior sidewall bounding the first and second chambers;the actuator further comprises an exterior sidewall encircling the interior sidewall;the interior sidewall comprises a travelling seal that forms a fluid seal with the exterior sidewall;the exterior sidewall comprises a fixed seal that forms a fluid seal the interior sidewall, the fixed seal arranged along the extension direction from the ...

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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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23-02-2017 дата публикации

Control System for Tilting Motorcycle trike

Номер: US20170050693A1
Принадлежит: Mystery Designs LLC

A system used to control the orientation of a vehicle's suspension. The system includes a control system receiving input data from a plurality of sensors concerning the relative motion, speed, and orientation of the vehicle. The control system is configured to process the input data and actively control the orientation of the suspension system by selecting a suitable driver speed and tilt angle according to external conditions.

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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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10-03-2022 дата публикации

HARVESTING MACHINE FOR HARVESTING FRUITS FROM THE GROUND AND METHOD OF CONTROL OF THE SAME

Номер: US20220071095A1
Принадлежит:

A harvesting machine for harvesting fruit from the ground has a cart having a frame, which is movable in a moving direction and carries, connected to it in an integral manner, a fruit harvesting device having a harvesting member and wheels rolling on the ground and designed for the height positioning the harvesting member; the cart having a pair of front wheels and a pair of rear wheels; at least the front wheels being coupled to the frame by means of respective height-adjustable suspensions, each having a respective actuator; an electric-hydraulic command and control assembly being provided in order to adjust the height of the frame relative to the front wheels depending on the pressure of a chamber of at least one of the actuators and in order to rotate the frame around an instantaneous rotation axis, which is transverse to the moving direction, so as to adjust the load acting upon the positioning wheels and upon the front wheels. 1. A harvesting machine for harvesting fruits from the ground , the machine comprising a cart comprising a first frame; a front axle comprising at least one front-wheel; a front suspension for coupling the front-wheel to the frame and comprising a front actuator; and a rear axle comprising at least one rear-wheel coupled to the first frame; the machine furthermore comprising a fruit harvesting device , in turn , comprising a second frame , a movable member for picking up the fruits from the ground and coupled to said second frame , and at least one reference member configured to keep said picking member at a predefined height from the ground;the harvesting machine being characterised in that said first and second frames are firmly connected to one another to move in unison, and in that said front suspension is a suspension adjustable in height and said front actuator is configured to move said first frame from and towards said front-wheel and in that it comprises a command and control unit for said front actuator; the command and control ...

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10-03-2022 дата публикации

METHOD FOR ADAPTING A TRANSFER FUNCTION OF AN ACTIVE SUSPENSION OF A VEHICLE

Номер: US20220072924A1
Автор: Smits Thomas
Принадлежит: Continental Automotive GmbH

A method for adapting a transfer function of an active suspension of a vehicle comprises the vehicle driving along a section of road for which a surface profile is stored in a control unit of the vehicle. The active suspension is activated according to a predetermined transfer function for adaptation to the surface profile by means of adjustment values in order to compensate for unevenness of the surface profile. A shock absorber sensor system and/or a tire sensor system of the vehicle is used to record vertical accelerations while driving along the section of road and transfer them to the control unit. The invention provides that the adjustment values and the vertical accelerations are transferred by the vehicle to an external central computer. 110-. (canceled)11. A method for adapting a transfer function of an active suspension of a vehicle , comprising:storing a surface profile of a section of road along which the vehicle drives in a control unit of the vehicle;activating the active suspension by the control unit according to a predetermined transfer function for adaptation to the surface profile with adjustment values to compensate for unevenness of the surface profile;recording vertical accelerations while driving along the section of road with at least one of a shock absorber sensor system and a tire sensor system;transferring the recorded vertical accelerations to the control unit; andtransferring the adjustment values and the recorded vertical accelerations from the vehicle to an external central computer.12. The method as claimed in claim 11 , wherein the external central computer determines a deviation of the recorded vertical accelerations from expected vertical accelerations calculated for the section of road using a vehicle-specific reference model.13. The method as claimed in claim 12 , wherein the reference model is adapted from the deviation by the central computer.14. The method as claimed in claim 12 , further comprising:generating an adapted ...

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21-02-2019 дата публикации

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

Номер: US20190054788A1
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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01-03-2018 дата публикации

Methods And Systems To Calculate And Store GPS Coordinates Of Location-Based Features

Номер: US20180056745A1
Принадлежит:

A method to determine and store a location of a ground feature along a route of travel of a vehicle is disclosed. The method includes receiving a user input commanding a change to a vehicle suspension system setting; receiving first location data corresponding to a vehicle location at a time of receipt of the user input; receiving sensor data corresponding to at least one vehicle characteristic from at least one vehicle sensor; calculating a feature location based on the at least one vehicle characteristic; and storing the feature location. In response to a predicted path of the vehicle passing within a threshold distance of the feature location during a subsequent drive cycle, the actuator may be automatically controlled to change the vehicle suspension setting from a first setting to a second setting. 1. A method to determine and store a location of a ground feature along a route of travel of a vehicle having a vehicle suspension system , the method comprising:providing the vehicle with a user interface and a controller in electronic communication with the user interface;receiving, by the controller, a user input to the user interface commanding a change to a vehicle suspension system setting;receiving, by the controller, first location data corresponding to a vehicle location at a time of receipt of the user input;receiving, by the controller, sensor data corresponding to at least one vehicle characteristic from at least one vehicle sensor;calculating, by the controller, a feature location based on the at least one vehicle characteristic; andstoring, by the controller, the feature location in a non-transient computer-readable data medium.2. The method of claim 1 , further comprising:providing the vehicle with an actuator configured to control the vehicle suspension system; andin response to the user input, controlling, by the controller, the actuator to change the vehicle suspension system setting; andin response to a predicted path of the vehicle passing within ...

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04-03-2021 дата публикации

Device for adjusting height of vehicle

Номер: US20210061044A1
Автор: Kyung Ryul PARK
Принадлежит: Hyundai Mobis Co Ltd

A vehicle height adjustment system includes: a cylinder housing part having an inner space configured to receive working fluid; a piston part positioned in the cylinder housing part, the piston part configured to move linearly, in response to a working fluid, in a moving direction along the cylinder housing part; and a rotation suppressing bracket coupled to the cylinder housing part and connected to a side surface of the piston part, the rotation suppressing bracket configured to suppress rotational movement with respect to the moving direction of the piston part.

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04-03-2021 дата публикации

METHOD OF OPERATING AN ADJUSTABLE ROLL STABILIZER

Номер: US20210061047A1
Принадлежит:

A method of operating an adjustable roll stabilizer for a motor vehicle. The stabilizer has an actuator which can be rotated through a system angle about a rotational axis to apply a system torque and rotate two stabilizer sections relative to one another about the axis. The stabilizer sections are coupled at a radial distance from the axis to a respective wheel suspension, and depending on the system angle and under the external influence of movements of the wheel suspensions, twist relative to one another through a stabilizer angle. In the context of a perturbation magnitude regulation, the actuator is controlled based on the stabilizer angle determined from height levels of the wheels, by virtue of a stored relationship for the roll stabilizer and/or motor vehicle. The plausibility of the stored relationship between the wheel height levels and the stabilizer angle is checked by a model calculation. 19-. (canceled)101123663663778899778899abababababababab. A method for operating an adjustable roll stabilizer () for a motor vehicle , the adjustable roll stabilizer () has an actuator () which is rotatable through a system angle (α) in relation to a rotational axis () to apply a system torque (M) , to rotate two stabilizer sections ( , ) connected thereto relative to one another about the rotation axis () , the stabilizer sections ( , ) are , in each case , coupled radially a distance away from the rotation axis () to a respective wheel suspension ( , , , , , ) and , depending on the system angle (α) and under an external influence of movement of the wheel suspensions ( , , , , , ) , twist relative to one another through a stabilizer angle (β) , the method comprising:{'b': 2', '7', '7', '7', '7', '1, 'i': a, z', 'b', 'a', 'b, 'controlling the actuator (), in context of a perturbation magnitude regulation, as a function of the stabilizer angle (β), which is determined from height levels (z) of wheels (, ) determined by sensors, by virtue of a stored relationship for at ...

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