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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 4350. Отображено 100.
02-01-2014 дата публикации

Method for integrating an electronic component into a printed circuit board or a printed circuit board intermediate product, and printed circuit board or printed circuit board intermediate product

Номер: US20140000941A1
Автор: Andreas Zluc, Gerald Weidinger, Johannes Stahr
Принадлежит: AT&S Austria Technologie und Systemtechnik AG

In a method for integrating at least one electronic component into a printed circuit board or a printed circuit board intermediate product, the following steps are provided: providing a layer for at least temporarily supporting the electronic component, fixing the electronic component on the layer, arranging a conductive layer on the supporting layer with at least one cutout corresponding to the dimensions of the electronic component to be fixed, at least partly encapsulating or covering the component fixed on the supporting layer with an insulating material, exposing the electronic component, and at least partial regions of the conductive layer, which adjoins the component and is arranged on the supporting layer, and at least partly making contact between the electronic component and the conductive layer adjoining the component. Furthermore, a printed circuit board and a printed circuit board intermediate product having an integrated electronic component are provided.

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Номер записи: 1
07-01-2021 дата публикации

SELECTIVE BRAKING OF CARBON BRAKES TO IMPROVE LIFE

Номер: US20210001823A1
Автор: Georgin Marc, Kordik Michael
Принадлежит: GOODRICH CORPORATION

A method for active brake selection, in accordance with various embodiments is disclosed. The method comprises detecting an outbound taxiing event for an aircraft. The method further comprises determining whether an inboard or outboard brake has less wear than a respective inboard or outboard brake on a respective landing gear. The method may further comprise selecting an inboard or outboard brake to use during the outbound taxiing event. 1. A method for active brake selection , comprising:detecting, by a brake control unit (BCU), an outbound taxiing event in an aircraft;determining, by the BCU, a first inboard wear state of a left landing gear inboard brake and a first outboard wear state of a left landing gear outboard brake;selecting, by the BCU, the left landing gear inboard brake or the left landing gear outboard brake as a selected left landing gear brake for exclusive use during the outbound taxiing event;determining, by the BCU, a second inboard wear state of a right landing gear inboard brake and a second outboard wear state of a right landing gear outboard brake;selecting, by the BCU, at least one of the right landing gear inboard brake or the right landing gear outboard brake as a selected right landing gear brake for exclusive use during the outbound taxiing event.2. The method of claim 1 , further comprising:monitoring, by the BCU, a first temperature of the selected left landing gear brake and a second temperature of the selected right landing gear brake during the outbound taxiing event.3. The method of claim 2 , further comprising:alternating, by the BCU, the selected left landing gear brake to an unselected left landing gear brake if at least one of the first temperature exceeds a predetermined temperature threshold or the selected right landing gear brake to an unselected right landing gear brake if the second temperature exceeds the predetermined temperature threshold.4. The method of claim 1 , wherein the first inboard wear state claim 1 , the ...

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Номер записи: 2
02-01-2020 дата публикации

SYSTEM AND METHOD FOR DETERMINING WATER CONTENT IN BRAKE FLUID

Номер: US20200001850A1
Автор: PEINERT Niklas, STOOPENDAHL Madeleine
Принадлежит:

A brake system for a vehicle including: a brake caliper; a brake fluid container connected to a brake pipe; a brake hose connecting the brake pipe to the brake caliper; a refractometer arranged in the proximity of the brake caliper and configured to measure a refraction of the brake fluid at the brake caliper; a temperature sensor arranged in the proximity of the refractometer and configured to measure a temperature of the brake fluid in the proximity of the brake caliper; and a control unit configured to determine a water content of the brake fluid based on the measured refraction and the measured temperature. 1. A brake system for a vehicle , comprising:a brake caliper;a brake fluid container connected to a brake pipe;a brake hose connecting the brake pipe to the brake caliper;a refractometer arranged in the proximity of the brake caliper and configured to measure a refraction of the brake fluid at the brake caliper;a temperature sensor arranged in the proximity of the refractometer and configured to measure a temperature of the brake fluid in the proximity of the brake caliper; anda control unit configured to determine a water content of the brake fluid based on the measured refraction and the measured temperature.2. The brake system according to claim 1 , wherein the refractometer is arranged in a connector connecting the brake hose to the brake caliper.3. The brake system according to claim 1 , wherein the refractometer is arranged in a portion of the brake hose adjacent to the brake caliper.4. The brake system according to claim 1 , wherein the refractometer is arranged within the brake caliper.5. The brake system according to claim 1 , wherein the refractometer is arranged in the brake pipe.6. The brake system according to claim 1 , wherein the refractometer is arranged in a connection between the brake pipe and the brake hose.7. The brake system according to claim 1 , wherein the temperature sensor is arranged in an integrated sensor module together with the ...

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Номер записи: 3
02-01-2020 дата публикации

BRAKE CHAMBER STROKE SENSOR

Номер: US20200001853A1
Автор: Drake Will, Gaufin Carl
Принадлежит:

A brake chamber includes a chamber housing having an end, a push rod configured for reciprocal movement in the chamber housing in a first direction and a second direction over a stroke distance, a return spring disposed in the chamber housing configured to urge the push rod in the second direction and a sensor assembly having a sensor and a magnet movable relative to the sensor with movement of the push rod. The sensor is configured to detect a magnetic field strength of the magnet and output sensor data representative of the detected magnetic field strength. The sensor assembly is configured to determine a position of the push rod based on the sensor data over the entire stroke distance. 1. A brake chamber comprising:a chamber housing having an end;a push rod configured for reciprocal movement in the chamber housing in a first direction and a second direction over a stroke distance;a return spring disposed in the chamber housing configured to urge the push rod in the second direction; anda sensor assembly comprising a sensor and a magnet movable relative to the sensor with movement of the push rod,wherein the sensor is configured to detect a magnetic field strength of the magnet and output sensor data representative of the detected magnetic field strength, andwherein the sensor assembly is configured to determine a position of the push rod based on the sensor data over the entire stroke distance.2. The brake chamber of claim 1 , wherein the sensor is positioned at the end of the chamber housing and the magnet is disposed on the push rod plate.3. The brake chamber of claim 1 , wherein the sensor assembly is positioned at the end of the chamber housing and the return spring is seated on the sensor assembly.4. The brake chamber of claim 3 , wherein the sensor assembly further comprises:a top plate;a base plate; andat least one resilient member disposed between the top plate and the base plate.5. The brake chamber of claim 4 , wherein the magnet is disposed on the top ...

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Номер записи: 4
05-01-2017 дата публикации

SMART BRAKING DEVICES, SYSTEMS, AND METHODS

Номер: US20170002883A1
Автор: Donzelli Daniele, Martinotto Luca, Serra Stefano, Solari Mattia, Terranova Marco
Принадлежит:

Various braking devices, systems, and methods are disclosed. In some embodiments, the braking device includes a support element, a block of friction material supported by the support element, at least one piezoceramic sensor supported by the support element and interposed between the block of friction material (and the support element, and a protective element located at the piezoceramic sensor and embedding the latter. The protective element can have one or more layers of resin-based material applied to protect the piezoceramic sensor and direct a predetermined part of the external compression force onto an area of the support element surrounding the piezoceramic sensor. In some embodiments, a signal transduction device is provided and includes at least one piezoceramic sensor supported on a support element and has an integral protective coating having properties of mechanical and temperature resistance. 1. A braking device for vehicles , comprising:a support element;a block of friction material supported by the support element; andat least one piezoceramic sensor supported by the support element and interposed between the block of friction material and the support element,wherein the support element supports at least one protective element that encloses the at least one piezoceramic sensor, and{'sup': '2', 'wherein the at least one protective element exhibits mechanical properties adapted to maintain the at least one piezoceramic sensor below its maximum load condition when an external compression force exceeding 400 kg/cmis applied to integrate the block of friction material on the support element.'}2. The braking device for vehicles of claim 1 , wherein the block of friction material claim 1 , the piezoceramic sensor and the protective element exhibit a linear elastic behaviour with elastic constants in a direction of the external compression force (F) applied to the block of friction material claim 1 ,wherein the protective element experiences a resultant force ...

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Номер записи: 5
13-01-2022 дата публикации

SYSTEMS AND METHODS FOR MEASURING BRAKE WEAR

Номер: US20220009466A1
Автор: Boggs Clifton Randolph, Kordik Michael
Принадлежит: GOODRICH CORPORATION

A system for determining brake wear based on hydraulic fluid volume may comprise a brake actuator and a fluid supply line fluidly coupled to the brake actuator. The brake actuator may include a brake ram configured to translate in response to changes in fluid pressure in the brake actuator. A piston may be fluidly coupled between a first portion of the fluid supply line and a second portion of the fluid supply line. The piston may include a cylinder and a ram configured to translate within the cylinder. A first sensor may be operably coupled to the piston. 1. A system for determining brake wear based on fluid volume , comprising:a brake actuator including a brake ram configured to translate in response to changes in fluid pressure in the brake actuator;a fluid supply line fluidly coupled to the brake actuator;a piston fluidly coupled between a first portion of the fluid supply line and a second portion of the fluid supply line, the piston including a cylinder and a ram configured to translate within the cylinder; anda first sensor operably coupled to the piston.2. The system of claim 1 , wherein the first sensor is configured to output a detection signal in response to the ram being located within a field of view of the first sensor.3. The system of claim 2 , wherein the first sensor is coupled to the cylinder.4. The system of claim 3 , further comprising a second sensor coupled to the cylinder claim 3 , the second sensor being located closer to the second portion of the fluid supply line as compared to the first sensor.5. The system of claim 4 , further comprising a display electrically coupled to the first sensor and the second sensor.6. The system of claim 1 , wherein the first sensor is coupled to the ram claim 1 , and wherein the first sensor comprises a linear variable differential transformer.7. The system of claim 1 , wherein the ram is configured to contact a floor of the cylinder and block a flow of fluid to the second portion of the fluid supply line in ...

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Номер записи: 6
03-01-2019 дата публикации

SIGNAL TRANSDUCER DEVICES, SYSTEMS, AND METHODS

Номер: US20190003541A1
Автор: Donzelli Daniele, Martinotto Luca, Serra Stefano, Solari Mattia, Terranova Marco
Принадлежит:

Various braking devices, systems, and methods are disclosed. In some embodiments, the braking device includes a support element, a block of friction material supported by the support element, at least one piezoceramic sensor supported by the support element and interposed between the block of friction material (and the support element, and a protective element located at the piezoceramic sensor and embedding the latter. The protective element can have one or more layers of resin-based material applied to protect the piezoceramic sensor and direct a predetermined part of the external compression force onto an area of the support element surrounding the piezoceramic sensor. In some embodiments, a signal transduction device is provided and includes at least one piezoceramic sensor supported on a support element and has an integral protective coating having properties of mechanical and temperature resistance. 1. A signal transduction device comprising:a support element;a piezoceramic sensor supported by the support element, the piezoceramic sensor comprising a piezoceramic material; anda protective element covering a portion of the piezoceramic sensor, the protective element having an elastic modulus that is less than or equal to an elastic modulus of the piezoceramic material of the piezoceramic sensor,wherein the piezoceramic sensor is enclosed by the protective element and the support element.2. The signal transduction device according to claim 1 , wherein the protective element is configured to dampen a force applied to the protective element such that a force received by the piezoceramic sensor is less than the force applied to the protective element.3. The signal transduction device according to claim 1 , wherein the protective element comprises a resin-based material or a ceramic material.4. The signal transduction device according to claim 3 , wherein the resin-based material comprises a material selected from polyimide resins claim 3 , epoxy resins claim 3 , ...

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Номер записи: 7
03-01-2019 дата публикации

SENSORIZED BRAKE PAD CALIBRATION MACHINES, SYSTEMS, AND METHODS

Номер: US20190005743A1
Автор: Meduri Laura, Serra Stefano, Solari Mattia, Truccone Paolo
Принадлежит:

Various machines, systems, and methods for generating calibration data for a sensorized brake pad are disclosed. In some embodiments, a system includes a fixture, a brake pad retainer, a pressure plate, an actuator and a controller. The actuator applies a pressure to the sensorized brake pad and signals from the pressure sensors are received. Calibration data is generated based on the signals received from the pressures sensors when the pressure is applied to the sensorized brake pad. 1. A machine for determining calibration data for a sensorized brake pad , the sensorized brake pad having pressure sensors configured to detect pressure applied to friction material of the sensorized brake pad , the machine comprising:a fixture;a brake pad retainer supported by the fixture and configured to hold the sensorized brake pad fixed relative to the fixture;a pressure plate configured to contact the friction material of the sensorized brake pad;an actuator supported by the fixture at a first end and connected to the pressure plate at a second end; and an actuator control portion configured to control the actuator to apply a pressure to the pressure plate such that the sensorized brake pad is compressed between the pressure plate and the brake pad retainer,', 'a pressure sensor signal receiving portion configured to receive signals from the pressure sensors when the pressure is applied to the sensorized brake pad, and', 'a calibration data generator configured to generate calibration data based on the signals received from the pressure sensors when the pressure is applied to the sensorized brake pad., 'a controller comprising2. The machine of claim 1 , wherein the actuator is positioned at an angle relative to a rotor-contacting surface such that pressure applied to the sensorized brake pad includes a normal force component and a shear force component.3. The machine of claim 1 , wherein the angle is adjustable.4. The machine of claim 1 , wherein the angle is adjustable within ...

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Номер записи: 8
03-01-2019 дата публикации

SENSORIZED BRAKE PAD CALIBRATION MACHINES, SYSTEMS, AND METHODS

Номер: US20190005747A1
Автор: Meduri Laura, Serra Stefano, Solari Mattia, Truccone Paolo
Принадлежит:

Various machines, systems, and methods for generating calibration data for a sensorized brake pad are disclosed. In some embodiments, a system includes a fixture, a brake pad retainer, a pressure plate, an actuator and a controller. The actuator applies a pressure to the sensorized brake pad and signals from the pressure sensors are received. Calibration data is generated based on the signals received from the pressures sensors when the pressure is applied to the sensorized brake pad. 1. A method for determining calibration data for a sensorized brake pad that comprises pressure sensors configured to output signals in response to pressure applied to the sensorized brake pad , the method comprising:retaining the sensorized brake pad in a fixture in a calibration machine;applying, with one or more actuators of the calibration machine, pressure to the sensorized brake pad;receiving signals outputted from the pressure sensors while the pressure is being applied to the sensorized brake pad;determining calibration data for the sensorized brake pad based on the signals;storing the calibration data into a memory; andproviding the calibration data to a user for installing in a controller of a vehicle on which the sensorized brake pad is installed.2. The method of claim 1 , wherein the applying of pressure further comprises applying the pressure at a substantially 90 degree angle relative to the friction element of the sensorized brake pad.3. The method of claim 1 , wherein the applying of pressure comprises applying a normal force and a shear force to the sensorized brake pad.4. The method of claim 3 , wherein a ratio of the shear force to the normal force is less than a static coefficient of friction of the friction element of the brake pad.5. The method of claim 3 , wherein the pressure is applied to the brake pad at an angle θ relative to the friction element of the brake pad claim 3 , and wherein the ratio of the shear force over the normal force is equal to about tan θ. ...

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Номер записи: 9
14-01-2016 дата публикации

MACHINE TOOL WITH ROTARY TABLE

Номер: US20160008939A1
Автор: MASUYA Michi
Принадлежит:

A machine tool with a rotary table includes a disturbance torque calculation unit configured to calculate a disturbance torque imposed on the brake while the rotary table is retained by the brake, a first coefficient storing unit for storing a first coefficient corresponding to a disturbance torque, an accumulation unit configured to, when the disturbance torque is imposed on the brake, find a first coefficient corresponding to the disturbance torque and accumulate a value of the first coefficient, and, an annunciation unit configured to annunciate necessity of a brake replacement when the value of the first coefficient accumulated reaches a predetermined value. 1. A machine tool with a rotary table configured to index a rotary table with a workpiece mounted thereupon and retain an indexed position by a brake , the machine tool with the rotary table comprising:a disturbance torque calculation unit configured to calculate a disturbance torque imposed on the brake while the rotary table is retained by the brake;a first coefficient storing unit configured to store a first coefficient corresponding to the disturbance torque;an accumulation unit configured to, when the disturbance torque is imposed on the brake, calculate a disturbance torque using the disturbance torque calculation unit, find a first coefficient corresponding to the disturbance torque based on the disturbance torque calculated and referring to the first coefficient storing unit, and accumulate a value of the first coefficient; and,an annunciation unit configured to annunciate necessity of a brake replacement when the value of the first coefficient accumulated reaches a predetermined value.2. A machine tool with a rotary table configured to index a rotary table with a workpiece mounted thereupon and retain an indexed position by a brake , the machine tool with the rotary table comprising:an inertia storing unit configured to preliminary store an inertia of the rotary table corresponding to the workpiece; ...

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Номер записи: 10
11-01-2018 дата публикации

Electric braking device for vehicle

Номер: US20180009420A1
Автор: Koichi Kokubo, Shun Tsukamoto
Принадлежит: Advics Co Ltd

Provided is an electric braking device that transmits power generated by an electric motor MTR to a pressing member PSN and causes pressing force to be generated by the pressing member PSN with respect to a friction member MSB. Hysteresis characteristics in the relation between the power supply amount to the electric motor and the pressing force of the pressing member are detected each time a predetermined point in time arrives. Upon determination of a “holding state in which the pressing force is held constant”, a minimum value for a power supply amount that makes it possible to maintain the current pressing force is obtained on the basis of the most recently detected hysteresis characteristics and the power supply amount is set to a value determined on the basis of the obtained minimum value for the power supply amount.

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Номер записи: 11
11-01-2018 дата публикации

Electric brake device

Номер: US20180009426A1
Автор: Yui Masuda
Принадлежит: NTN Corp

An electric brake device includes: a brake rotor; a friction member; friction member contactor; an electric motor; braking force estimation unit; and a control device. The control device has a control system in which a motor rotation angle of the electric motor is included in a state quantity in a control computing of a follow-up control. The control device includes a state quantity reset function unit that resets at least the motor rotation angle to a predetermined value, on the basis of a predetermined condition using at least one of a target braking force, an estimated value of a braking force, an amount of change of a target braking force, an amount of change of an estimated value of a braking force, and a deviation between a target braking force and an estimated value of the braking force.

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Номер записи: 12
12-01-2017 дата публикации

ELECTRIC LINEAR MOTION ACTUATOR

Номер: US20170009829A1
Автор: Masuda Yui, Takahashi Toru
Принадлежит: NTN CORPORATION

An electric linear motion actuator includes a linear motion mechanism for converting the rotation of a rotary shaft to a linear motion of an outer ring member. The electric linear motion actuator further includes a reaction force receiving member adapted to receive an axially rearward reaction force, and a stationary member provided axially rearward of the reaction force receiving member. A magnetic pole row is mounted to the reaction force receiving member, while the magnetic sensor is mounted to the stationary member. 1. An electric linear motion actuator comprising:a rotary shaft configured to be driven by an electric motor to rotate about a rotary axis extending in an axial direction;a linear motion mechanism including a linear motion member and configured to covert a rotary motion of the rotary shaft to a linear motion of the linear motion member;a reaction force receiving member located axially rearward of the linear motion member, and configured to receive an axially rearward reaction force applied to the linear motion member when an axially forward pressing force is applied from the linear motion member, and to be axially deformed under the axially rearward reaction force;a stationary member fixed in position at a location axially rearwardly spaced from the reaction force receiving member;a magnetic pole row mounted to one of the reaction force receiving member and the stationary member, and comprising N-poles and S-poles which are arranged alternately with and adjacent to each other in an axial direction; anda magnetic sensor mounted to the other of the reaction force receiving member and the stationary member so as to face the magnetic pole row in a direction perpendicular to the axial direction such that when the reaction force receiving member is axially deformed, relative axial movement in the axial direction of the magnetic pole row with respect to the magnetic sensor occurs, such that the magnetic sensor can detect a change in relative position ...

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Номер записи: 13
10-01-2019 дата публикации

ACTIVELY DEPLOYABLE AND RETRACTABLE FENDER SKIRTS FOR INCREASED FUEL EFFICIENCY

Номер: US20190009831A1
Автор: ALBERTSON CHAD M., Campbell Eric J., OLLERICH NICHOLAS J., Steffen Christopher W.
Принадлежит:

A vehicle with deployable pliable fairing skirts and a controller for controlling deployment of the skirts are provided. The pliable fairing skirts are deployable over openings of wheel wells for the vehicle to provide additional streamlining for the vehicle. The pliable fairing skirts are stowable when the brakes of the vehicle may benefit from additional cooling airflow. The skirts are also stowable when environmental conditions may result in damage to the skirts or when steerable wheels of the vehicle would protrude from the opening. 1. A vehicle , comprising:a fairing that includes an outward-facing surface and defines a wheel well, wherein an opening in the fairing forms a pathway between the outward-facing surface and the wheel well;a wheel disposed in the wheel well, wherein the wheel is operatively connected to a brake, and wherein the wheel is rotatable about a rotation axis to move the vehicle;a pliable fairing skirt that is movable between a stowed state and a deployed state, wherein the pliable fairing skirt is stored above the opening and behind the outward-facing surface of the fairing in the stowed state, and wherein the pliable fairing skirt covers at least a portion of the opening in the deployed state;an actuator operable to move the pliable fairing skirt between the stowed state and the deployed state;a brake temperature sensor operable to detect temperatures of the brake; anda controller in communication with the actuator and with the brake temperature sensor, wherein the controller is operable to move the pliable fairing skirt from the deployed state toward the stowed state upon receiving a signal from the brake temperature sensor indicating a brake temperature that exceeds a temperature threshold.2. The vehicle of claim 1 , further comprising at least one environmental sensor operable to detect an environmental parameter claim 1 , wherein the controller is in communication with the at least one environmental sensor claim 1 , and wherein the ...

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Номер записи: 14
10-01-2019 дата публикации

Emergency Braking of a Flywheel

Номер: US20190011001A1
Автор: Bakholdin Daniel, Hitchcock Roger Nelson, Holloway Mark J., Sanders Seth Robert, Senesky Matthew K., Tennessen Peter Thomas
Принадлежит:

A flywheel device includes an enclosure that surrounds an interior chamber that includes a rotor, which during normal operation is maintained in a vacuum state and spinning, the enclosure includes a first opening, and a valve that attaches to the enclosure, configured to enable, when actuated, ambient air to flow from the exterior of the enclosure into the chamber through the first opening, thus allowing the internal air pressure to rapidly approach ambient air pressure and thereby increase the air drag which acts as a brake on the spinning rotor. 1. A device , comprising:an enclosure that surrounds an interior chamber, which during normal operation is maintained in a vacuum state, wherein the enclosure includes a first opening;a flywheel rotor disposed within the interior chamber; anda valve that attaches to the enclosure, configured to enable, in response to an actuation signal indicating that a reduction in rotation speed of the flywheel rotor is desired, ambient air to flow from the exterior of the enclosure into the chamber through the first opening.2. The device of claim 1 , further comprising: a sensor configured to detect movements of the flywheel device;', 'a processor communicatively coupled to the sensor; and', to detect an emergency event; and', 'to send a signal to actuate the valve., 'a memory in communication with the processor for storing instructions, which when executed by the processor, cause the electronics unit], 'an electronics unit, comprising3. The device of claim 2 , wherein the at least one sensor is selected from the group consisting of an acceleration sensor claim 2 , a temperature sensor claim 2 , a pressure sensor claim 2 , a gyroscope and an acoustic sensor.4. The device of claim 2 , wherein an emergency event is selected from the group consisting of an abnormal movement claim 2 , an excessive vibration claim 2 , an excessive temperature and a pressure loss in the chamber.5. The device of claim 1 , wherein the valve has at least a ...

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Номер записи: 15
03-02-2022 дата публикации

ELECTRIC BRAKE, AND CONTROL DEVICE

Номер: US20220032886A1
Автор: Goto Daisuke
Принадлежит:

An electric brake including: a brake mechanism configured to transmit a thrust force generated through drive of an electric motor to a piston, the piston being configured to move brake pads to be pressed against a disc rotor; a thrust force sensor configured to detect the thrust force transmitted to the piston; and an ECU for rear electric brake configured to control, based on a detection value obtained by the thrust force sensor, the drive of the electric motor in accordance with a brake command. The ECU for rear electric brake is configured to learn, as a reference point of a piston thrust force, a detection value obtained by the thrust force sensor when the electric motor is driven to move the piston in a direction for pressing the piston against the disc rotor in a range in which the brake pads are not in contact with the disc rotor. 1. An electric brake , comprising:a brake mechanism configured to transmit a thrust force generated through drive of an electric motor to a piston, the piston being configured to move brake pads to be pressed against a disc;a thrust force detection unit configured to detect the thrust force transmitted to the piston; anda control device configured to control the drive of the electric motor based on a detection value obtained by the thrust force detection unit,wherein the control device is configured to set, as a reference point of a piston thrust force, a detection value obtained by the thrust force detection unit when the electric motor is driven to move the piston toward a direction for pressing the disc in a range in which the brake pads are not in contact with the disc.2. The electric brake according to claim 1 , wherein the control device is configured to move the piston toward a direction away from the disc claim 1 , and then to move the piston toward the direction for pressing the disc.3. The electric brake according to claim 1 , wherein the control device is configured to move the piston toward the direction for pressing the ...

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Номер записи: 16
03-02-2022 дата публикации

SYSTEM AND METHOD OF EVALUATING PERFORMANCE OF VEHICLE DEVICE HAVING FRICTION COMPONENT

Номер: US20220034378A1
Автор: Cho Sung Hyun
Принадлежит:

A system and method of accurately evaluating the performance of a vehicle device having a friction component, including a brake disc, a clutch disc, or the like, may be achieved by predicting the accurate friction coefficient of the friction component in consideration of changes in the temperature, rotation speed, and hydraulic pressure of the friction component, and determining the operating torque of the vehicle device or system having the friction component through reflecting the predicted friction coefficient, during the performance evaluation simulation process of the vehicle device including the friction component. 1. A system for evaluating performance of a vehicle device having a friction component , the system comprising:a rotation speed determination unit configured to determine a rotation speed of the friction component of the vehicle device;a hydraulic pressure determination unit configured to determine a hydraulic pressure acting on the friction component;a temperature determination unit configured to determine a temperature of the friction component;a friction coefficient modeling unit configured to predict and output a friction coefficient on a basis of three or more input values, including the rotation speed determined by the rotation speed determination unit, the hydraulic pressure determined by the hydraulic pressure determination unit, and the temperature of the friction component determined by the temperature determination unit; anda torque determination unit configured to determine an operating torque of the friction component using the friction coefficient output from the friction coefficient modeling unit.2. The system according to claim 1 , wherein the friction component is a brake disc being selectively in a contact with a friction material of a brake system claim 1 , or a clutch disc being selectively in a contact with a friction material of a clutch system.3. The system according to claim 1 , wherein the rotation speed determination unit ...

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Номер записи: 17
03-02-2022 дата публикации

WEAR VOLUME ESTIMATION DEVICE, WEAR VOLUME ESTIMATION METHOD, AND WEAR VOLUME ESTIMATION PROGRAM

Номер: US20220034379A1
Автор: Matsui Noriyoshi
Принадлежит:

A wear volume estimation device estimates a wear volume of a brake pad of a vehicle. A wear volume function expresses the wear volume as a function of a vehicle speed, a brake pressure, and a brake duration. The wear volume estimation device calculates the wear volume by using the wear volume function. Moreover, the wear volume estimation device estimates a temperature of a contact surface of the brake pad that comes in contact with a brake rotor, and updates temperature history information indicating at least a temperature history of the contact surface based on the temperature of the contact surface. The wear volume estimation device variably sets the wear volume function according to the temperature history of the contact surface indicated by the temperature history information acquired at a time of previous braking. 1. A wear volume estimation device that estimates a wear volume of a brake pad of a vehicle ,the wear volume estimation device comprising:a processor; anda storage configured to store information on a wear volume function that expresses the wear volume as a function of a vehicle speed, a brake pressure, and a brake duration, wherein an information acquisition process acquiring information on the vehicle speed, the brake pressure, and the brake duration, during braking of the vehicle;', 'a wear volume calculation process calculating the wear volume according to the vehicle speed, the brake pressure, and the brake duration by using the wear volume function;', 'a temperature estimation process estimating a temperature of a contact surface of the brake pad that comes in contact with a brake rotor, based on the vehicle speed, the brake pressure, and the brake duration; and', 'a temperature history management process updating temperature history information indicating at least a temperature history of the contact surface, based on the temperature of the contact surface, and, 'the processor is programmed to executein the wear volume calculation process, the ...

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Номер записи: 18
18-01-2018 дата публикации

LOAD DETECTION APPARATUS

Номер: US20180017451A1
Автор: IESATO Naoya, OJIMA Yasukuni, TAGUCHI Kenichi
Принадлежит: AISIN SEIKI KABUSHIKI KAISHA

A load detection apparatus includes an input member for receiving input of a load, a tubular body having a strain element, a strain detection element fixed to a face of the strain element, a circuit board mounted to oppose the strain detection element in a tube axis direction of the tubular body, and a connection member having a first connection portion to be electrically connected to the strain detection element and a second connection portion to be electrically connected to the circuit board. An attaching portion of the strain detection element to be attached to the first connection portion is provided to oppose the circuit board, and also an attaching portion of the circuit board to be attached to the second connection portion is provided in a face of the circuit board opposite a further face of the circuit board which faces the first connection portion. 1. A load detection apparatus comprising:an input member for receiving input of a load;a tubular body having a strain element configured to generate a strain due to the load inputted to the input member;a strain detection element fixed to a face of the strain element, the face being opposite to another face of the strain element, said another face coming into contact with the input member, the strain detection element being configured to detect the strain generated in the strain element;a circuit board mounted to oppose the strain detection element in a tube axis direction of the tubular body, the circuit board being configured to receive input of detection information of the strain detection element;a connection member having a first connection portion to be electrically connected to the strain detection element and a second connection portion to be electrically connected to the circuit board;an attaching portion of the strain detection element to be attached to the first connection portion being provided to oppose the circuit board; andan attaching portion of the circuit board to be attached to the second ...

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Номер записи: 19
16-01-2020 дата публикации

Method for Influencing the Kinematic Behavior of a Vehicle

Номер: US20200017094A1
Автор: GUTSCHI Daniela, KNOLL Markus, SCHINAGL Gerhild
Принадлежит:

A method for influencing the kinematic behavior of a vehicle, in particular a rail vehicle with at least one friction brake system, wherein a brake effect is generated by pressing at least one first and second friction elements against each other, where to achieve advantageous method conditions, temperatures of at least the first friction element are calculated from at least speed, brake pressure, external temperature of the vehicle and absolute times, and heat conduction through the first friction element and a speed-dependent cooling process of the first friction element are taken into consideration during the calculation, and where the kinematic behavior of the vehicle is influenced based on the calculation such that expensive fitting of the friction brake system with sensors for measuring friction element temperatures can be advantageously omitted, and the thermal state of the friction brake system can still be estimated with a high degree of precision. 111.-. (canceled)12. A method for influencing kinematic behavior of a vehicle having at least one friction brake system , wherein a braking effect being generated by pressing at least a first friction element and a second friction element against each other , the method comprising:calculating at least temperatures of at least the first friction element from information relating to at least a speed, a brake pressure, a surrounding external temperature of the vehicle and absolute times, a heat conduction through the at least first friction element and a speed-dependent cooling of the at least first friction element being taken into consideration during said calculation; andinfluence the kinematic behavior of the vehicle based on the calculation.13. The method as claimed in claim 12 , wherein heat conduction through the second friction element and speed-dependent cooling of the second friction element are taken into consideration when performing the calculation.14. The method as claimed in claim 12 , further ...

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Номер записи: 20
17-01-2019 дата публикации

BRAKE ROTOR PROGNOSIS

Номер: US20190017561A1
Автор: Antanaitis David B., Riefe Mark T., Robere Matthew A.
Принадлежит:

Technical solutions are described to for determining thickness of a vehicle brake rotor. An example method includes providing vehicle parameters that identify operating conditions of a vehicle, and using the vehicle parameters to determine work done by a brake of the vehicle as brake-work. Further, the method includes using the brake work to determine brake rotor temperature, and using the brake rotor temperature to determine brake rotor wear. The method further includes accumulating the brake rotor wear to provide an estimation of the thickness of the vehicle brake rotor. 1. A method for determining a thickness of a vehicle brake rotor , the method comprising:providing vehicle parameters that identify operating conditions of a vehicle;using the vehicle parameters to determine work done by a brake of the vehicle as brake-work;using the brake work to determine brake rotor temperature;using the brake rotor temperature to determine brake rotor wear; andaccumulating the brake rotor wear to provide an estimation of the thickness of the vehicle brake rotor.2. The method of claim 1 , wherein the brake rotor wear is an energy-based brake rotor wear claim 1 , and the method further comprising:computing an oxidative brake rotor wear based on a time of exposure of the vehicle brake rotor; andcomputing the brake rotor wear by summing the oxidative brake rotor wear and the energy-based brake rotor wear.3. The method of claim 2 , wherein the oxidative brake rotor wear is computed by scaling the time of exposure of the vehicle brake rotor by a predetermined oxidative wear parameter.4. The method of claim 3 , wherein the predetermined oxidative wear parameter is specific to a material of the vehicle brake rotor.5. The method of claim 1 , wherein providing vehicle parameters includes providing brake rotor friction material claim 1 , brake rotor cooling rate claim 1 , vehicle mass claim 1 , road grade claim 1 , dynamic brake proportioning claim 1 , vehicle weight distribution claim 1 ...

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Номер записи: 21
22-01-2015 дата публикации

Disc brake rotor for heavy-duty vehicles

Номер: US20150021128A1
Автор: Jay D. White, Jeffrey S. Morris
Принадлежит: HENDRICKSON USA LLC

The invention is directed to a rotor of a disc brake system for heavy-duty vehicles. The rotor includes an inboard disc and an outboard disc. The outboard disc is spaced apart from the inboard disc, and a plurality of pins extends between and rigidly connects the inboard disc and the outboard disc. A sleeve includes an inboard end and an outboard end, and is disposed inside an inner perimeter of the outboard disc. A connecting member extends between and rigidly connects an inner perimeter of the inboard disc to the inboard end of the sleeve. The inboard disc attachment to the sleeve and the interconnecting pins cooperate to improve the resistance of the rotor to thermal stress created during braking, thereby increasing the performance and the life of the rotor.

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Номер записи: 22
10-02-2022 дата публикации

BRAKE CONTROL DEVICE AND BRAKE CONTROL METHOD

Номер: US20220041144A1
Автор: Goto Daisuke, ITAKURA Kyoshiro, Ito Takahiro, Matsubara Kenichiro, MATSUURA Makoto
Принадлежит: Hitachi Astemo, Ltd.

There are provided a brake control device and a brake control method capable of estimating a rigidity change due to a temperature change, uneven wear of a brake pad, an inclination of a brake disc, or the like with a low memory load and with high accuracy up to a region with larger thrust than a measurement range. A brake control device controls a braking unit including a friction member pushed on a braking target member, a piston that abuts on the friction member and moves in a linear motion direction by rotation of an electric motor, and a thrust detection unit that detects thrust of the friction member to the braking target member. The brake control device estimates a relation between a piston position being rigidity of the braking unit, and the thrust, based on a first piston range that is a thrust change as a first inclination with respect to the piston position, and a second piston range that is a thrust change as a second inclination different from the first inclination, with respect to the piston position. 1. A brake control device that controls a braking unit including a friction member pushed on a braking target member , a piston that abuts on the friction member and moves in a linear motion direction by rotation of an electric motor , and a thrust detection unit that detects thrust of the friction member to the braking target member ,wherein a relation between a piston position being rigidity of the braking unit, and the thrust is estimated based on a first piston range that is a thrust change as a first inclination with respect to the piston position, and a second piston range that is a thrust change as a second inclination different from the first inclination, with respect to the piston position.2. The brake control device according to claim 1 , wherein the rigidity is estimated based on a difference in position between the first piston range and the second piston range.3. The brake control device according to claim 1 , whereinthe first piston range is ...

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Номер записи: 23
24-01-2019 дата публикации

BRAKE POSITION SYSTEM

Номер: US20190023243A1
Автор: Abbott Michael, MASTROCOLA NAISON
Принадлежит: GOODRICH CORPORATION

A brake actuator system may comprise a brake actuator comprising a ball screw, a ball nut coupled to the ball screw, and a ram coupled to a ram end of the ball nut; a position sensor coupled to the brake actuator; a processor in electronic communication with the brake actuator and the position sensor; and/or a tangible, non-transitory memory configured to communicate with the processor, the tangible, non-transitory memory having instructions stored thereon that, in response to execution by the processor, cause the processor to perform operations. The operations may comprise commanding the brake actuator to translate the ball nut in a first direction toward a brake stack; detecting the ram reaching a furthest forward position; and commanding the brake actuator to translate the ball nut in a second direction opposite the first direction for a total retraction distance. 1. A brake actuator system , comprising:a brake actuator comprising a ball screw, a ball nut coupled to the ball screw, and a ram coupled to a ram end of the ball nut;a position sensor coupled to the brake actuator;a processor in electronic communication with the brake actuator and the position sensor; and commanding, by the processor, the brake actuator to translate the ball nut in a first direction toward a brake stack; and', 'detecting, by the processor, the ram reaching a furthest forward position;', 'commanding, by the processor, the brake actuator to translate the ball nut in a second direction opposite the first direction for a total retraction distance., 'a tangible, non-transitory memory configured to communicate with the processor, the tangible, non-transitory memory having instructions stored thereon that, in response to execution by the processor, cause the processor to perform operations comprising2. The brake actuator system of claim 1 , wherein the operations further comprise determining claim 1 , by the processor claim 1 , a running clearance position of the ram in response to ...

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Номер записи: 24
24-01-2019 дата публикации

BRAKE POSITION SYSTEM

Номер: US20190023244A1
Автор: Abbott Michael, MASTROCOLA NAISON
Принадлежит: GOODRICH CORPORATION

A brake actuator system may comprise a brake actuator comprising a ball screw, a ball nut coupled to the ball screw, and a ram coupled to a ram end of the ball nut; a position sensor coupled to the brake actuator; a processor in electronic communication with the brake actuator and the position sensor; and a tangible, non-transitory memory configured to communicate with the processor, the tangible, non-transitory memory having instructions stored thereon that, in response to execution by the processor, cause the processor to perform operations. The operations may comprise commanding the brake actuator to translate the ball nut in a first direction toward a brake stack; detecting the pusher reaching a furthest forward position; and commanding the brake actuator to translate the ball nut in a second direction opposite the first direction for a predetermined retraction distance. 1. A brake actuator system , comprising:a brake actuator comprising a ball screw, a ball nut coupled to the ball screw, and a ram coupled to a ram end of the ball nut;a position sensor coupled to the brake actuator;a processor in electronic communication with the brake actuator and the position sensor; and commanding, by the processor, the brake actuator to translate the ball nut in a first direction toward a brake stack;', 'detecting, by the processor, the ram reaching a furthest forward position; and', 'commanding, by the processor, the brake actuator to translate the ball nut in a second direction opposite the first direction for a predetermined retraction distance., 'a tangible, non-transitory memory configured to communicate with the processor, the tangible, non-transitory memory having instructions stored thereon that, in response to execution by the processor, cause the processor to perform operations comprising2. The brake actuator system of claim 1 , wherein the operations further comprise determining claim 1 , by the processor claim 1 , a zero torque position of the ram in response to ...

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Номер записи: 25
24-01-2019 дата публикации

Electric braking device for vehicle

Номер: US20190023248A1
Автор: Yoshiyuki Yasui
Принадлежит: Advics Co Ltd

This electric braking device is provided with: an electric motor MTR that, in accordance with an operation amount Bpa of a braking operation member BP caused by the driver of the vehicle, generates a pressing force Fba, being a force pressing a friction member MSB against a rotary member KTB that rotates integrally with a wheel WHL of the vehicle; a caliper CRP fixed to the electric motor MTR; a circuit board KBN to which a microprocessor MPR and a bridge circuit BRG are mounted, such that the electric motor MTR is driven; and a motor pin PMT that feeds power from the circuit board KBN to the electric motor MTR. The motor pin PMT penetrates a holding member HJB and is pressed into the circuit board KBN, which is fixed to the caliper CRP by the holding member HJB and the motor pin PMT.

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Номер записи: 26
24-01-2019 дата публикации

BRAKE ADJUSTMENT DETECTION USING WSS BASED THERMAL MEASUREMENT

Номер: US20190023252A1
Автор: JR. Thomas S., Macnamara Joseph M., MILLER, Szudy James E.
Принадлежит: BENDIX COMMERCIAL VEHICLE SYSTEMS LLC

When detecting a maladjusted brake component on a commercial vehicle, wheel end temperature is determined as a function of resistance measured by a wheel speed sensor at a wheel end. The measured temperature is compared to low and high temperature thresholds defined by a thermal model, as well as to one or more other wheel speed sensor temperatures. If the measured temperature is below the low temperature threshold and substantially different than the one or more other wheel speed sensors, the brake is determined to be under-adjusted and brake force at the under-adjusted brake is increased. If the measured temperature is above the high temperature threshold and substantially different than the one or more other wheel speed sensors, then the brake is determined to be over-adjusted, and brake force is reduced or modulated at the over-adjusted brake to prevent overheating. 1. A system that facilitates identifying and compensating for a maladjusted brake component in a commercial vehicle , comprising:a plurality of wheel speed sensor inputs for receiving wheel speed sensor signals from a plurality of associated wheel speed sensors installed at associated wheel ends each comprising a brake component; and receive a resistance value of an individual wheel speed sensor;', 'determine a temperature of the individual wheel speed sensor as a function of the resistance value and ambient temperature;', 'compare the determined temperature to a predefined expected temperature range for the received resistance value;', 'if the determined temperature is not in the predefined expected temperature range, compare the determined temperature to at least one other determined wheel speed sensor temperature;', 'determine that the determined temperature is not within a predefined percentage of the at least one other determined wheel speed sensor temperature;', 'and', 'generate and transmit an adjustment signal to the maladjusted brake component to compensate for the maladjustment., 'a ...

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Номер записи: 27
25-01-2018 дата публикации

Systems and methods for clamping force estimation in electromechanical brake systems

Номер: US20180023648A1
Автор: Sameep Singh
Принадлежит: Goodrich Corp

An electromechanical brake system may include an electromechanical actuator with a servo motor. A current control is electronically coupled to the servo motor. A resolver is configured to detect an angular velocity and an angular position of the servo motor. A converter may be configured to convert the angular velocity into a linear velocity and the angular position into a linear position. An intelligent observer may also be configured to estimate a load force of the electromechanical actuator based on the linear position and the linear velocity.

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Номер записи: 28
10-02-2022 дата публикации

Anomaly determination device for power transmission device

Номер: US20220042596A1
Автор: Hideaki Bunazawa, Kei Yuasa, Kenichi Yamaguchi, Tetsuya Yoshikawa
Принадлежит: Toyota Motor Corp

A storage device stores a mapping data entry that specifies a mapping and includes data learned through machine learning. A detection value of an oil temperature sensor is an oil temperature detection value. When oil temperature relation data, which is data corresponding to time series data of the oil temperature detection value, is input to the mapping as an input variable, the mapping outputs an output variable that determines whether a frictional engagement element has an anomaly. Processing circuitry executes an obtainment process that obtains the input variable and an anomaly determination process that determines whether the frictional engagement element has an anomaly based on the output variable that is output from the mapping as a result of inputting the input variable obtained in the obtainment process into the mapping.

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Номер записи: 29
28-01-2021 дата публикации

Vehicle control apparatus and vehicle control method

Номер: US20210024044A1
Автор: Su Hwan No
Принадлежит: Mando Corp

A vehicle control apparatus includes: a sensor configured to sense a current value and a voltage value applied to a motor of an actuator of an electronic parking brake (EPB) device; a controller configured to: estimate a speed value of the motor based on the sensed current value and the sensed voltage value; calculate a moving distance value of a spindle of the actuator based on the estimated speed value of the motor; estimate a position value of the spindle based on the calculated moving distance value of the spindle; estimate an EPB clamping force that acts on a brake disc of the EPB device based on the estimated position value of the spindle; calculate an EPB clamping force error compensation value between the estimated EPB clamping force value and a measured EPB clamping force value; and transmit, to the EPB device, a parking force compensation command on which the calculated EPB clamping force error compensation value is reflected to compensate for a parking force of the EPB device.

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Номер записи: 30
28-01-2021 дата публикации

BRAKE DEVICE

Номер: US20210024048A1
Автор: NÉMETH Huba
Принадлежит:

A brake device for a utility vehicle with a drivetrain, including: a vehicle brake, which is arranged along the drivetrain, as seen from at least one wheel hub, downstream of at least one transmission, in which the drivetrain includes the at least one electric drive motor, the at least one transmission and the at least one wheel hub. Also described is a related drive train, vehicle and utility vehicle. 113-. (canceled)14. A brake device for a utility vehicle with a drivetrain , comprising:a vehicle brake, which is arranged along the drivetrain, as seen from at least one wheel hub, downstream of at least one transmission;wherein the drivetrain includes the at least one electric drive motor, the at least one transmission and the at least one wheel hub.15. The brake device of claim 14 , wherein the vehicle brake is arranged along the drivetrain upstream or downstream of the at least one electric drive motor.16. The brake device of claim 14 , wherein the vehicle brake includes at least one of a pneumatic actuator claim 14 , a hydraulic actuator claim 14 , and/or an electric actuator.17. The brake device of claim 14 , wherein there is liquid cooling for the vehicle brake and/or at least one electric prime mover.18. The brake device of claim 14 , wherein the vehicle brake includes a parking brake function.19. A drivetrain for a utility vehicle claim 14 , comprising:at least one electric drive motor;at least one transmission;at least one wheel hub, wherein the at least one transmission is arranged between the at least one electric drive motor and the at least one wheel hub; anda brake device, including a vehicle brake, which is arranged along the drivetrain, as seen from the at least one wheel hub, downstream of the at least one transmission;wherein the drivetrain includes the at least one electric drive motor, the at least one transmission and the at least one wheel hub.20. The drivetrain of claim 19 , wherein there is a differential between the at least one electric ...

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Номер записи: 31
29-01-2015 дата публикации

BRAKE TEMPERATURE DETECTION DEVICE AND ELECTRIC PARKING BRAKE CONTROL DEVICE

Номер: US20150027823A1
Автор: Hanzawa Masatoshi, MURATA Shunsuke, Shiraki Takahiro
Принадлежит:

A brake temperature detection device: acquires a kinetic-energy based temperature rise, which is an increase in an amount of brake heat that occurs when kinetic energy generated in a running vehicle is converted into thermal energy by braking; acquires a braking-energy based temperature rise, which is an increase in an amount of brake heat that is calculated from an amount of work done when a brake's friction material is pressed against a friction target material; determines state of slope of a road surface on which the vehicle is running; and detects a brake temperature in accordance with an increase in an amount of brake heat generated in braking. The brake temperature detection device selects, based on the state of slope, either the kinetic-energy based temperature rise or the braking-energy based temperature rise as the increase in the amount of brake heat generated in braking and achieves brake temperature detection. 1. A brake temperature detection device comprising:a first acquisition means that acquires a kinetic-energy based temperature rise, which is an increase in an amount of brake heat that occurs when kinetic energy generated in a running vehicle is converted into thermal energy by braking;a second acquisition means that acquires a braking-energy based temperature rise, which is an increase in an amount of brake heat that is calculated from an amount of work done when a brake's friction material is pressed against a friction target material;a hill determination means that determines state of slope of a road surface on which the vehicle is running; anda temperature detection means that detects a brake temperature in accordance with an increase in an amount of brake heat generated in braking;wherein, in accordance with the result of determination made by the hill determination means, the temperature detection means selects either the kinetic-energy based temperature rise or the braking-energy based temperature rise as the increase in the amount of brake ...

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Номер записи: 32
29-01-2015 дата публикации

Electric motor and brake assembly

Номер: US20150027824A1
Автор: George H. Waterman, John Jindra, Nirav Pandya, Robert Bekoscke, Thomas Tuckowski
Принадлежит: Invacare Corp

A motor and brake assembly includes a mounting member. A stator winding assembly, a brake assembly, a hub, and a rotor magnet assembly. The stator winding assembly is mounted to the mounting member. The brake assembly is operably connected to the mounting member. The hub is rotatably coupled to the mounting member. The rotor magnet assembly is mounted to an inside of a radially outer wall of the hub. The brake assembly is operable to move a component of the brake assembly between an engaged position where the component engages the inside of the radially outer hub wall and a disengaged position where the component is spaced apart from the inside of the radially outer hub wall.

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Номер записи: 33
01-02-2018 дата публикации

Brake Cylinder of a Motor Vehicle

Номер: US20180029582A1
Автор: EGLSEDER Johann, KAISER Christoph, KRISTL Roland
Принадлежит:

A brake cylinder of a motor vehicle, in particular a pneumatically actuatable brake cylinder of a commercial vehicle, includes a first housing part and a second housing part. An actuation tappet actuates a brake lever of a brake application device, which actuation tappet protrudes from a spring chamber of the first housing part. A membrane, which divides an interior bounded by the first housing part and the second housing part into a pressure chamber and the spring chamber, is provided, as well as a return spring for returning the actuation tappet from a braking position to a non-braking position. The return spring is arranged in a loaded manner between a housing bottom of the first housing part and a plate, which is arranged on the spring chamber side of the membrane and is connected to the actuation tappet. The return spring is provided with at least one elongation-measuring element. 1. A brake cylinder of a motor vehicle , comprising:a first housing portion and a second housing portion;an actuation tappet which protrudes from a spring chamber of the first housing portion for actuating a brake lever of a brake application device;a diaphragm which subdivides an inner space which is delimited by the first housing portion and the second housing portion into a pressure chamber and the spring chamber;a restoring spring for restoring the actuation tappet from a braking position into a non-braking position;wherein the restoring spring is arranged so as to be clamped between a housing base of the first housing portion and a plate which is arranged at the spring chamber side of the diaphragm and which is connected to the actuation tappet; andwherein the restoring spring is provided with at least one expansion measurement element.2. The brake cylinder as claimed in claim 1 , wherein the brake cylinder is a pneumatically actuatable brake cylinder of a commercial vehicle.3. The brake cylinder as claimed in claim 1 , wherein the expansion measurement element is constructed as ...

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Номер записи: 34
01-02-2018 дата публикации

METHOD FOR MONITORING A BRAKE FOR MOTOR VEHICLES, BRAKE SYSTEM FOR IMPLEMENTING THE METHOD, AND MOTOR VEHICLE COMPRISING SAME

Номер: US20180029583A1
Автор: Dieckmann Thomas, Keller Marcos, Kusin Denis, Wallbaum Torsten
Принадлежит:

A method monitoring a pneumatically actuatable brake for motor vehicles, wherein an air gap of the brake is ascertained using measured position values provided by a brake wear sensor, includes ascertaining a reference position value of the brake wear sensor during unbraked travel, determining multiple value pairs of discrete position values and a current brake pressure P at a same point in time during a braking procedure, ascertaining a characteristic function interpolating the value pairs, determining a characteristic position value according to the characteristic function for a selected brake pressure, and determining an actual value of the air gap by subtracting the reference position value from the characteristic position value. 1. A method for monitoring a pneumatically actuatable brake for motor vehicles , wherein an air gap of the brake is ascertained using measured position values provided by a brake wear sensor , the method comprising:ascertaining a reference position value of the brake wear sensor during unbraked travel;determining multiple value pairs of discrete position values and a current brake pressure P at a same point in time during a braking procedure;ascertaining a characteristic function interpolating the value pairs;determining a characteristic position value according to the characteristic function for a selected brake pressure; anddetermining an actual value of the air gap by subtracting the reference position value from the characteristic position value.2. The method as claimed in claim 1 , wherein a fault is inferred if the air gap of the brake falls below a predetermined lower limiting value or if the detected air gap exceeds a predetermined upper limiting value.3. The method as claimed in claim 1 , wherein the brake wear sensor measures continuously and its measured position values claim 1 , as discrete position values claim 1 , are linked to the particular brake pressure at the same point in time for the determination of the ...

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Номер записи: 35
02-02-2017 дата публикации

VEHICLE BRAKING SYSTEMS AND METHODS

Номер: US20170030424A1
Автор: Donzelli Daniele, Martinotto Luca, Merlo Fabrizio
Принадлежит:

A method in which at least one piezoceramic sensor, which converts every mechanical force to which it is subjected into an electrical signal and having a Curie temperature higher than 200° C., is solidarized directly onto the surface of a metal support element of a vehicle braking element, which during use faces a vehicle element to be braked. While in contact with such a surface, an electrical circuit is implemented that picks up and eventually processes the electrical signal, the electrical circuit being connected with a connector integrated with the metal support element. An electrically insulating layer sandwiches the at least one piezoceramic sensor and the electrical circuit, and a block of friction material with an underlying damping layer is formed upon the electrically insulating layer. After forming the block of friction material, the piezoceramic sensor is polarized by applying a predetermined potential difference thereto by means of the connector. 115-. (canceled)16. A braking system for a motorized vehicle , the system comprising: a support element;', 'a friction material attached to the support element;', 'a piezoceramic sensor positioned between the support element and the friction material, the piezoceramic sensor configured to generate an electrical signal according to the piezoelectric effect and to output the electrical signal;', 'an electrical circuit configured to receive the electrical signal output by the piezoceramic sensor;', 'a thermally insulating layer positioned between the support element and the friction material; and', 'an electrically insulating layer positioned between the electrical circuit and the thermally insulating layer;, 'a friction element capable of sensing an external compression force applied to the friction element, the friction element comprisinga central processing unit configured to be removably connected to the electrical circuit and programmable to receive the electrical signal generated by the piezoceramic sensor;a ...

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Номер записи: 36
01-02-2018 дата публикации

Method for Detecting and Mitigating Excessive Clutch Disc Wear in Manual Transmissions

Номер: US20180031063A1
Автор: Binu Jose Kochucheruvil, David Howe, Glenn W. Hoefflin, Michael Partridge, William L. Cousins
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method for detecting and mitigating excessive clutch disc wear for a manual transmission includes determining if a clutch pedal position is depressed greater than or equal to a first predetermined pedal position threshold and if the vehicle speed is less than or equal to a predetermined vehicle speed threshold. The method further includes determining if the clutch pedal position is depressed greater than or equal to a second predetermined pedal position threshold when the clutch pedal position is depressed less than the first predetermined pedal position threshold. The method still further includes calculating a clutch disc heat flux value and a clutch disc surface temperature. The method further includes displaying an alert/warning and a remedial action message to a vehicle operator when the clutch disc surface temperature is greater than or equal to a predetermined surface temperature threshold.

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Номер записи: 37
31-01-2019 дата публикации

Active Duct System For An Automotive Vehicle

Номер: US20190031160A1
Автор: McMillan Ethan A., Tjoelker Rebecca
Принадлежит:

An automotive vehicle includes a wheel well having an inboard portion and an outboard portion. The vehicle also includes a duct associated with a duct inlet, a first duct outlet, and a second duct outlet. The duct inlet is configured to receive airflow resulting from vehicle motion. The first duct outlet is disposed at the inboard portion of the wheel well, and the second duct outlet is disposed at the outboard portion of the wheel well. The duct has a branch portion, a first length coupling the duct inlet to the branch portion, a second length coupling the branch portion to the first duct outlet, and a third length coupling the branch portion to the second duct outlet. The vehicle further includes a movable member disposed proximate the branch portion for controlling the fractions of airflow from the first length into the second and third lengths, respectively. 1. An automotive vehicle comprising:a body with a wheel well having an inboard portion and an outboard portion;a duct inlet associated with the body and configured to receive airflow resulting from vehicle motion;a first duct outlet disposed at the inboard portion of the wheel well;a second duct outlet disposed at the outboard portion of the wheel well;a duct having a branch portion, a first length coupling the duct inlet to the branch portion, a second length coupling the branch portion to the first duct outlet, and a third length coupling the branch portion to the second duct outlet;a vehicle wheel disposed in the wheel well, wherein the first duct outlet is disposed inboard of the vehicle wheel and the second duct outlet is disposed outboard of the vehicle wheel; anda movable member disposed in the duct and being movable between a first position and a second position, wherein in the first position a first fraction of the airflow is directed from the first length into the second length, and in the second position a second fraction of the airflow is directed from the first length into the second length.2. ...

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Номер записи: 38
04-02-2021 дата публикации

Control System and Method for Controlling an Activation State of a Braking-Torque Assistance System for Reducing Intake of Braking Energy in a Service-Brake System of a Vehicle

Номер: US20210031738A1
Автор: Kubik Lowell, Svensson Thomas, Weber Eugen, WILWERS THOMAS
Принадлежит:

A method for controlling an activation state of a braking-torque assistance system for reducing intake of braking energy in a service-brake system of a vehicle includes capturing and evaluating a plurality of demand indications for a startup of the braking-torque assistance system. If the evaluation of the captured plurality of demand indications reveals a demand for the startup of the braking-torque assistance system, a plurality of operating conditions of the service-brake system are captures and evaluated over a monitoring period. If, in turn, the evaluation of the captured plurality of operating conditions reveals that an overheating of the service-brake system is imminent, the braking-torque assistance system is actuated and one or more deactivation conditions of the braking-torque assistance system are checked. If the deactivation conditions are satisfied, the braking-torque assistance system is deactivated. 1. A method for controlling an activation state of a braking-torque assistance system for reducing intake of braking energy in the service-brake system of a vehicle , the method comprising:capturing and evaluating of a plurality of demand indications for a startup of the braking-torque assistance system; and if the evaluation of the captured plurality of operating conditions reveals that an overheating of the service-brake system is imminent, activating the braking-torque assistance system; and checking of one or more deactivation conditions of the braking-torque assistance system; and', 'if the one or more deactivation conditions are satisfied, deactivating the braking-torque assistance system., 'if the evaluation of the captured plurality of demand indications reveals a demand for the startup of the braking-torque assistance system, starting a capture of a plurality of operating conditions of the service-brake system and evaluation of the captured plurality of operating conditions over a monitoring period; and'}2. The method according to claim 1 , ...

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Номер записи: 39
08-02-2018 дата публикации

Method and Control Device for Avoiding an Overheating of a Brake of a Vehicle

Номер: US20180037209A1
Автор: Hecker Falk, Koch Werner, MAYR Mathias, THEIL Robert, WERTH Alexander
Принадлежит:

In a method for avoiding an overheating of a brake of a vehicle, in particular of a commercial vehicle and/or a trailer, a first temperature signal and at least a second temperature signal are read in, with the first temperature signal representing a temperature of the brake and/or of a functional part of the brake, and the at least second temperature signal representing at least one additional temperature of at least one additional brake of the vehicle. An error state of the brake is detected using the first temperature signal and the second temperature signal in order to avoid an overheating of the brake. A control device for carrying out the method is also disclosed. 1. A method for avoiding overheating of a brake of at least one of a utility vehicle , a trailer , and both a utility vehicle and a trailer , comprising:reading in a first temperature signal and at least a second temperature signal, wherein the first temperature signal represents a temperature of the brake and/or of a functional part of the brake, and wherein the at least second temperature signal represents at least one further temperature of at least one further brake of the vehicle; anddetermining a fault state of the brake using the first temperature signal and the second temperature signal, in order to avoid overheating of the brake.2. The method as claimed in claim 1 , wherein the brake is arranged on an axle claim 1 , and the at least one further brake is arranged on the same axle or on a further axle.3. The method as claimed in claim 1 , wherein for determining the fault state claim 1 , a temperature difference is determined as a difference between the first temperature signal and the further temperature signal claim 1 , and the fault state is determined if the temperature difference exceeds a difference threshold value.4. The method as claimed in claim 1 , wherein claim 1 , when reading in the first temperature signal claim 1 , an additional temperature signal is read in claim 1 , which ...

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Номер записи: 40
08-02-2018 дата публикации

Method for Increasing the Operational Safety of Functional Parts of a Vehicle Brake Exposed to Thermal Stress

Номер: US20180037210A1
Автор: Hecker Falk, Koch Werner, MAYR Mathias, THEIL Robert, WERTH Alexander
Принадлежит:

A method is provided for increasing the operational safety of at least one thermally stressed functional part of at least one vehicle brake, in particular of a commercial vehicle and/or a trailer, and/or for reducing brake wear and/or drive power, wherein the method has the following steps: inputting a temperature signal of the at least one brake, which temperature signal represents at least one temperature of the brake and/or of a functional part of the brake detected by at least one sensor, and inputting a brake request signal and/or brake pressure signal for the at least one brake; determining a thermal error condition by using the temperature signal and the brake requirement signal and/or brake pressure signal; and providing an adapted brake requirement signal and/or adapted brake pressure signal using the determined thermal error condition in order to increase the operational safety of the at least one functional part of the at least one vehicle brake exposed to thermal stress, and/or to reduce the brake wear and/or the drive power. 1. A method for increasing operational reliability of at least one thermally stressed functional part of at least one brake of a vehicle , wherein the method comprises the steps of:(a) reading-in a temperature signal of the at least one brake, which temperature signal represents at least one temperature of the brake and/or of a functional part of the brake which is detected by at least one sensor, and reading-in a braking request signal and/or a brake pressure signal for the at least one brake;(b) determining a thermal fault situation when using the temperature signal and the braking request signal and/or the brake pressure signal; and(c) supplying an adapted braking request signal and/or adapted brake pressure signal using the determined thermal fault situation, in order to increase the operational reliability of the at least one thermally stressed functional part of the at least one brake.2. The method as claimed in claim 1 , ...

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Номер записи: 41
08-02-2018 дата публикации

System and method for the diagnosis, evaluation and prediction of leakages in different hydraulic circuits, quickly and safely for the operator

Номер: US20180037211A1
Автор: Carlos Alberto RAMIREZ ORTIZ, Carlos Cristian RAMIREZ LEANO, Miguel Angel RAMIREZ LEANO
Принадлежит: Ramirez E Hijo Ltda Soc

Transportable system for the diagnosis, evaluation and prediction of leakages in hydraulic circuits of low pressure between 0 to 7 bar and of high pressure from 0 to 170 bar, quickly and safely for the operator is provided having a first independent circuit of high pressure and low flow and a second independent circuit of low pressure and high flow wherein the first independent circuit comprises: a first pressure subsystem, which delivers pressure to a first 4/3 valve with ports A, B, P and T, which is actuated by first solenoids, to deliver pressure to a first coupling A or to a first coupling B, in fluid communication with the ports A and B of the first 4/3 valve respectively a computer arranged to control the pressure of each pressure subsystem and associated method.

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Номер записи: 42
12-02-2015 дата публикации

Electric parking brake

Номер: US20150041261A1
Автор: Makoto Muramatsu, Yui Masuda
Принадлежит: NTN Corp

A parking brake is provided having the function of monitoring malfunction of the brake, thereby preventing accidents. The parking brake includes an electric motor ( 10 ) and a linear motion mechanism ( 11 ) which are connected together through a speed reduction mechanism ( 12 ). The parking brake further includes a locking pin ( 50 ) which can be brought into engagement with the speed reduction mechanism ( 12 ) by a solenoid ( 13 ). The parking brake further includes a monitoring means for detecting the change in reactance (L) of the solenoid ( 13 ). Since the change in reactance (L) as detected corresponds to the displacement of the plunger ( 53 ), it is possible to prevent accidents by monitoring deteriorated sliding properties of the locking pin ( 50 ) base on the displacement detected.

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Номер записи: 43
08-02-2018 дата публикации

BRAKE ACTUATOR

Номер: US20180038428A1
Автор: Severinsson Lars
Принадлежит:

A brake actuator for brakingly engaging a brake block or pad () with a rotating part of a vehicle has spring means () creating a linear brake force. An eccentric mechanism () is arranged in a brake force transmitting chain from the spring means () to the brake block or pad (), and there is a motor () for controlling the angular position of an eccentric () in this mechanism and thus the brake force transmitted from the spring means (). 1. A brake actuator for brakingly engaging a brake block or pad with a rotating part of a vehicle , said brake actuator comprising:spring means for creating a linear brake force;an eccentric mechanism in a brake force transmitting chain from the spring means to the brake block or pad; anda motor for controlling the angular position of an eccentric in said eccentric mechanism and the brake force transmitting chain from the spring means to the brake block or pad.2. The brake actuator according to for brakingly engaging a brake pad with a brake disc of a vehicle claim 1 , comprising said spring means for biasing a drive bridge in a brake application direction claim 1 , said drive bridge being connected to the brake pad and being controlled in its position in this direction by said eccentric claim 1 , which extends through an opening in the drive bridge and is arranged on a control shaft journalled in relation to a housing of the brake actuator and connected to the motor.3. The brake actuator according to claim 2 , wherein said spring means is supported by a cover of the housing of the brake actuator claim 2 , and wherein the control shaft is journalled in shaft supports of the cover.4. The brake actuator according to claim 2 , wherein reduction gearing is provided between the electric motor and an outgoing drive pinion thereof.5. The brake actuator according to claim 4 , wherein the reduction gearing comprises a planetary reduction gearing.6. The brake actuator according to claim 4 , wherein said drive pinion is in gear engagement with a ...

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Номер записи: 44
07-02-2019 дата публикации

Wheel module

Номер: US20190040921A1
Автор: Hiroyuki Furusaki, Shen Zhao, Takanobu Koyama
Принадлежит: MinebeaMitsumi Inc

A wheel module according to an embodiment includes a wheel, a motor, a shaft, a holding member and a brake. A tire is mounted on the wheel. The motor is arranged on the inner side of the wheel and includes a stator and a rotor. The shaft is fixed to the rotor coaxially with a rotation axis of the rotor and transmits rotation force of the rotor to the wheel. The holding member holds the stator. The brake restricts rotation of the shaft. One end portion of the holding member in the axial direction of the rotation axis of the rotor is fixed to and supported by a support member. The brake is on the opposite side to the wheel with the support member interposed therebetween. The shaft extends to an inner portion of the brake while passing through through-holes formed in the one end portion and the supporting member.

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Номер записи: 45
19-02-2015 дата публикации

MONITORING OF BRAKE

Номер: US20150047426A1
Автор: Ekholm Niko, Jantunen Aapo, Kirjavainen Johanna, Toikka Juha, Vilppo Risto
Принадлежит:

The monitoring of a brake is disclosed. The brake includes first and second braking surfaces and a magnetizing device arranged to move the braking surfaces to an open state, in which the braking surfaces are separated from each other, and to a closed state, in which the braking surfaces are connected to each other. During the monitoring of the brake, the time is measured that elapses from the change in the magnetic field caused by the magnetizing device to the shift of the braking surfaces from one state to another.

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Номер записи: 46
15-02-2018 дата публикации

SMART LOAD CELL

Номер: US20180045593A1
Автор: Beason Joseph E., Drennen David, Freshour Thomas, Pant Albert Keith, Rehfus Kevin, Streng Scott
Принадлежит: GOODRICH CORPORATION

The present disclosure includes the use of a smart load cell in a system for controlling an electromechanical actuator. A load cell may be positioned along the outer surface of the electromechanical actuator. Further, the load cell may utilize strain gages and a microcontroller. The load cell may be configured to transmit data to an electric brake actuator controller which includes calibration for operating temperature of the electromechanical actuator. 1. A method for controlling an electromechanical actuator , comprising:calibrating a load cell of an electromechanical actuator system, wherein the load cell comprises a circuit board coupled to the electromechanical actuator and having at least one strain gage, a microcontroller, a bridge, and an output drive circuit in communication with the microcontroller; andtransmitting an output signal from the output drive circuit to an electric brake actuator controller.2. The method for controlling the electromechanical actuator of claim 1 , further comprising transmitting a command signal from the electric brake actuator controller.3. The method for controlling the electromechanical actuator of claim 1 , wherein the calibrating the load cell comprises determining a minimum bridge value at a zero load and determining a maximum bridge value at a maximum load.4. The method for controlling the electromechanical actuator of claim 1 , wherein the load cell further comprises an accelerometer in communication with the microcontroller and the microcontroller is configured to evaluate the health of the load cell.5. The method for controlling the electromechanical actuator of claim 1 , wherein the output drive circuit communicates with the electric brake actuator controller via a serial interface.6. The method for controlling the electromechanical actuator of claim 1 , wherein the load cell further comprises a temperature sensing element and the microcontroller is configured to determine an operating temperature of the ...

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Номер записи: 47
03-03-2022 дата публикации

DRUM BRAKE

Номер: US20220065310A1
Автор: Bach Uwe, Hoffmann Jens, Sefo Ahmed, Vey Christian
Принадлежит: Continental Teves AG & Co. oHG

For controlling electromechanically actuatable brakes of servo type construction, it is necessary to detect the forces acting on the abutment of the brake shoes. The abutment is therefore formed from a massive material which deforms under load, wherein measurement devices are provided which detect this deformation. The shape of the abutment is selected in such a way that the abutment has measurement gaps, the size of which changes when the abutment is loaded. The size of the measurement gaps can be sensed by means of Hall sensors or AMR sensors, for example. 110-. (canceled)11. A drum brake of servo type construction comprising:a brake drum;two brake shoes, which can be applied to the brake drum, each having a pressure end and a supporting end;a spreader device between the pressure ends of the brake shoes, which is mounted to float relative to the carrier plate and is supported in force introduction points at the pressure ends to introduce force into the pressure ends;a ram located between the supporting ends, which is mounted to float relative to the carrier plate and is supported on the supporting ends in order to transmit force;a pressure head at the pressure end on each brake shoe adjacent to the force introduction point, wherein the pressure heads can be supported on an abutment arranged therebetween and connected to the carrier plate, wherein the abutment is deformed elastically under load; andat least one sensor which detects deformation of the abutment that arises under load to enable the braking torque produced in the drum brake to be determined with the sensor signal.12. The drum brake as claimed in claim 11 , wherein the abutment is formed by a base claim 11 , which ends via a web at a pedestal connected to the carrier plate claim 11 , wherein the pressure heads rest against the opposite edges of the base.13. The drum brake as claimed in claim 11 , wherein the base is connected to the pedestal via a central web claim 11 , wherein the mutually facing edges ...

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Номер записи: 48
03-03-2022 дата публикации

Method for adjusting the clearance of an electromechanical brake, brake, and control device

Номер: US20220065316A1
Автор: Arne Reiners, Peter Beier
Принадлежит: ZF CV Systems Europe BV

A method for adjusting the clearance of an electromechanical brake, in particular of a utility vehicle brake, involves the following steps: activating a clearance test cycle for the brake, applying at least one brake lining of the brake in the direction of a brake disc and determining a contact position in which the brake lining enters into contact with the brake disc when application occurs, determining the clearance as well the degree of wear of the lining on the basis of the determined contact position, calculating the clearance which is necessary for the brake and a necessary contact position of the brake lining and brake disc in accordance with the degree of wear of the lining using predefined parameters. The method is performed by a suitable brake and a control device.

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Номер записи: 49
14-02-2019 дата публикации

DISC BRAKE ROTOR ASSEMBLY AND BRAKE SYSTEM

Номер: US20190048952A1
Автор: KUWAYAMA Kazuya
Принадлежит: SHIMANO INC.

A disc brake rotor assembly for a small vehicle including a bicycle comprises a disc brake rotor and at least one rotor state sensor to detect a state of the disc brake rotor. 1. A disc brake rotor assembly for a small vehicle including a bicycle , comprising:a disc brake rotor; andat least one rotor state sensor provided on the disc brake rotor to detect a state of the disc brake rotor.2. The disc brake rotor assembly according to claim 1 , whereinthe at least one rotor state sensor is configured to detect a braking force applied to the disc brake rotor.3. The disc brake rotor assembly according to claim 1 , whereinthe disc brake rotor includes a rotor member and a hub mounting member to connect the rotor member to a hub of the small vehicle.4. The disc brake rotor assembly according to claim 3 , whereinthe at least one rotor state sensor is attached to the hub mounting member.5. The disc brake rotor assembly according to claim 4 , whereinthe at least one rotor state sensor includes a strain gauge to detect a strain of the hub mounting member.6. The disc brake rotor assembly according to claim 5 , whereinthe at least one rotor state sensor includes a temperature sensor to detect a temperature of the strain gauge.7. The disc brake rotor assembly according to claim 4 , whereinthe rotor member is a separate member with respect to the hub mounting member, andthe rotor member is attached to the hub mounting member by a fastener.8. The disc brake rotor assembly according to claim 3 , whereinthe at least one rotor state sensor includes a temperature sensor to detect a temperature of at least one of the rotor member or the hub mounting member.9. The disc brake rotor assembly according to claim 1 , further comprising:a wireless communicator to output information of the state of the disc brake rotor.10. The disc brake rotor assembly according to claim 9 , further comprising:a battery to supply electric power to the wireless communicator and the at least one rotor state ...

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Номер записи: 50
10-03-2022 дата публикации

Brake system

Номер: US20220073039A1
Автор: Michael Putz
Принадлежит: GREENBRAKES GMBH

The invention relates to a brake system comprising at least one brake with a frictional surface, a pad carrier with a brake pad, and a control and monitoring unit. According to the invention, the brake system additionally comprises a brake temperature sensor which is connected to the control and monitoring unit that is designed to ascertain brake temperature maintenance values on the basis of the brake effectiveness request, to compare a temperature ascertained by the brake temperature sensor with corresponding brake temperature maintenance values, and to ascertain at least one correction factor on the basis of a deviation. The control and monitoring unit is additionally designed to correct the brake control signal by the at least one correction factor and to actuate the controller using the corrected brake control signal.

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Номер записи: 51
10-03-2022 дата публикации

METHOD FOR DETERMINING A CLEARANCE OF AN ELECTROMECHANICAL BRAKE, BRAKE, AND CONTROL UNIT

Номер: US20220073049A1
Автор: Beier Peter, Reiners Arne
Принадлежит:

A method for determining a clearance of an electromechanical brake involves the following steps: Activating a clearance determination cycle for the brake, moving an electromechanical brake actuator by a drive motor into a first end position, moving the electromechanical brake actuator via the drive motor toward a second end position, continuously determining a rotor position and/or a motor current of the drive motor during the movement of the brake actuator toward the second end position, determining a contact positiat which the brake pad comes into contact with the brake disc, on the basis of the rotor position and/or of the motor current, and determining a clearance and/or a degree of pad wear on the basis of the determined contact position. A suitable electomechanical brake and a respective control unit carry out the method. 1200100. A method () for determining a clearance (L) of an electromechanical brake () , in particular a commercial vehicle brake , comprising the steps of:{'b': ['202', '100'], '#text': 'activating () a clearance determination cycle for the electromechanical brake (),'}{'b': ['204', '2', '1', '100'], '#text': 'moving () an electromechanical brake actuator () via a drive motor (A) into a first end position (E), in which the electromechanical brake () is in a non-applied state,'}{'b': ['206', '2', '2', '2', '103', '100'], '#text': 'moving () the electromechanical brake actuator () the drive motor (A) toward a second end position (E), wherein the movement of the electromechanical brake actuator () applies at least one brake pad () of the electromechanical brake () toward a brake disc,'}{'b': ['208', '2', '2'], '#text': 'continuously determining () at least one of a rotor position (φ) and a motor current (i) of the drive motor (A) during the movement of the electromechanical brake actuator () toward the second end position (E),'}{'b': ['210', '103'], '#text': 'determining () a contact position (K), at which the brake pad () comes into contact ...

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Номер записи: 52
28-02-2019 дата публикации

BRAKE SHOE ABRASION DETECTION SYSTEM OF RAILWAY VEHICLE

Номер: US20190063533A1
Автор: IKEDA Kazutsuna, MITSUE Masayuki, Miyazaki Takashi, NISHIMURA Takehiro, SATO Yoshi, SEKIYA Takao, TADA Akihiko, YOSHIMATSU Yuta
Принадлежит: KAWASAKI JUKOGYO KABUSHIKI KAISHA

There is provided a configuration in which an association between a location of each brake shoe of a railway vehicle and each abrasion detection tag is easily learned, and system implementation and management are simplified. A brake shoe abrasion detection system of a railway vehicle includes a computer that receives data of a signal read by a reader from at least one abrasion detection RF tag attached to each of a plurality of brake shoes of the railway vehicle passing the reader. The computer determines an association between a plurality of the signals and the plurality of brake shoes based on an order that the reader reads the plurality of signals from a plurality of the abrasion detection RF tags attached to the plurality of brake shoes, respectively. 1. A brake shoe abrasion detection system of a railway vehicle , the brake shoe abrasion detection system comprising a computer that receives data of a signal read by a reader from at least one abrasion detection RF tag attached to each of a plurality of brake shoes of the railway vehicle passing the reader ,wherein the computer determines an association between a plurality of the signals and the plurality of brake shoes based on an order that the reader reads the plurality of the signals from a plurality of the abrasion detection RF tags attached to the plurality of brake shoes respectively.2. The brake shoe abrasion detection system of the railway vehicle according to claim 1 , wherein the computerreceives data pieces of the plurality of signals respectively read by the reader from a plurality of vehicle body RF tags attached to a plurality of vehicle bodies of the railway vehicle, respectively, anddetermines vehicle specifying information associated with the signal read by the reader from the abrasion detection RF tag based on the data pieces of the signals read by the reader from the vehicle body RF tags.3. The brake shoe abrasion detection system of the railway vehicle according to claim 1 , whereina plurality ...

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Номер записи: 53
09-03-2017 дата публикации

ELECTRIC BRAKE DEVICE

Номер: US20170066428A1
Автор: Masuda Yui
Принадлежит: NTN CORPORATION

Provided is an electric brake device that is able to achieve redundancy when an abnormality occurs in a load sensor, without increasing the size of the load sensor. The electric brake device includes a brake rotor, a friction pad, an electric motor, a transmission mechanism, braking force command section, braking force estimation section, motor rotation angle detector, and a controller. The braking force estimation section includes a load sensor configured to detect elastic deformation of a determined member forming the electric brake device. The controller includes sensor abnormality detector configured to store a sensor output of the load sensor at a motor rotation angle at which a braking force becomes zero, and infer the occurrence of plastic deformation in the load sensor from transition of the stored sensor output. 1. An electric brake device comprising:a brake rotor configured to rotate integrally with a wheel;a friction pad configured to come into contact with the brake rotor to generate a braking force;an electric motor;a transmission mechanism configured to convert an output of the electric motor into a pressing force of the friction pad;a braking force command section configured to detect an operation amount of a brake operation portion and to command a target braking force;a braking force estimation section configured to obtain an estimated value of a braking force that presses the friction pad against the brake rotor;a motor rotation angle detector configured to detect a rotation angle of the electric motor; anda controller configured to control the electric motor in accordance with a command value and the estimated value of the braking force, whereinthe braking force estimation section includes a load sensor configured to detect elastic deformation of a determined member forming the electric brake device, andthe controller includes a sensor abnormality detector configured to store a sensor output of the load sensor at a motor rotation angle at which ...

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Номер записи: 54
27-02-2020 дата публикации

BRAKE OF A LARGE WIND TURBINE

Номер: US20200063711A1
Автор: Glaentz Wolfgang, Kern Henning, Liesegang Hans-Juergen
Принадлежит:

A system includes a wind turbine having a fixed part and a rotational part and a brake having a brake disk mounted to the rotational part for rotation with the rotational part. At least one brake block is fixed relative to the fixed part and has a friction surface facing the brake disk. The brake block is shiftable between a first position with the friction surface spaced from the brake disk and a second position with the friction surface in contact with and pressed against the brake disk, and the friction surface and/or the brake disk are configured such that pressing the at least one brake block against the brake disk creates a micro-interference fit between the at least one brake block and the brake disk. 110-. (canceled)11. A system comprising:a wind turbine having a fixed part and a rotational part,a brake disk mounted to the rotational part for rotation with the rotational part,at least one brake block fixed relative to the fixed part and having a friction surface facing the brake disk, the at least one brake block being shiftable between a first position with the friction surface spaced from the brake disk and a second position with the friction surface in contact with and pressed against the brake disk,the friction surface and/or the brake disk being configured such that pressing the at least one brake block against the brake disk creates a micro-interference fit between the at least one brake block and the brake disk.12. The system according to claim 11 ,wherein the wind turbine comprises a multimegawatt turbine,wherein the rotational part comprises a main shaft of the wind turbine, andwherein the brake block is located proximate a rotational bearing.13. The system according to claim 11 , wherein the brake block is shiftable radially from the first position to the second position.14. The system according to claim 11 , wherein the brake block is shiftable axially from the first position to the second position.15. The system according to claim 11 , wherein ...

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Номер записи: 55
17-03-2022 дата публикации

SENSORIZED BRAKE PAD CALIBRATION MACHINES, SYSTEMS, AND METHODS

Номер: US20220084324A1
Автор: Meduri Laura, Serra Stefano, Solari Mattia, Truccone Paolo
Принадлежит:

Various machines, systems, and methods for generating calibration data for a sensorized brake pad are disclosed. In some embodiments, a system includes a fixture, a brake pad retainer, a pressure plate, an actuator and a controller. The actuator applies a pressure to the sensorized brake pad and signals from the pressure sensors are received. Calibration data is generated based on the signals received from the pressures sensors when the pressure is applied to the sensorized brake pad. 1. (canceled)2. A brake pad calibration machine , comprising:a fixture;a brake pad retainer supported by the fixture and configured to hold a sensorized brake pad relative to the fixture;an actuator supported by the fixture, the actuator controllable to apply force to the sensorized brake pad and movable to adjust an angle θ between a force direction of the actuator and a plane formed by a surface of a friction element of the sensorized brake pad; and{'claim-text': ['control the actuator to apply force to the sensorized brake pad in the force direction to apply both normal and shear forces to the surface of the friction element of the sensorized brake pad; and', 'receive one or more signals from one or more force sensors of the sensorized brake pad when the force is applied to the sensorized brake pad; and', 'generate calibration data based on the signals received from the force sensors when the force is applied to the sensorized brake pad.'], '#text': 'a controller configured to:'}3. The machine of claim 2 , wherein the controller is configured to control the actuator such that a ratio of the shear force to the normal force is less than a static coefficient of friction of the friction element of the brake pad.4. The machine of claim 2 , wherein the controller is configured to control the actuator such that a ratio of the shear force over the normal force is equal to about tan θ.5. The machine of claim 2 , wherein the controller is further configured to move the actuator to adjust the ...

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Номер записи: 56
11-03-2021 дата публикации

VEHICLE BRAKE PAD AND A PRODUCTION PROCESS THEREOF

Номер: US20210071728A1
Автор: Serra Stefano, Terranova Marco, Vignolo Umberto
Принадлежит:

Various systems, devices, and methods for a vehicle smart brake pad comprising a sensor such as a force sensing device, and a production process thereof. For example, a production process of a vehicle brake pad can include the following steps in time sequence: applying an electrical circuit a support plate; screen printing on the electrical circuit of at least a first electrode; screen printing on the at least first electrode of a sheet of piezoelectric material; screen printing on the sheet of at least a second electrode; applying a friction pad on the support plate; and bulk polarizing the sheet of piezoelectric material by a supply of power to the at least first and second electrodes. 1. A vehicle brake pad comprising:support plate;a friction pad;at least a force sensing device; and a sheet of piezoelectric material having a first and a second main faces parallel to each other;', 'at least a first electrode located on said first main face; and', 'at least a second electrode located on said second main face;', 'wherein in that said sheet of piezoelectric material, said first and second electrodes are made each of a screen-printed layer., 'an electrical circuit configured to collect signals from said at least a force sensing device, said force sensing device comprising2. A vehicle brake pad according to claim 1 , wherein said force sensing device is a normal force sensing device.3. A vehicle brake pad according to claim 1 , wherein said force sensing device is a shear force sensing device.4. A vehicle brake pad according to claim 3 , wherein said at least a first electrode and at least said second electrode are digitated.5. A method of making a vehicle brake pad claim 3 , the method comprising:applying an electrical circuit on a support plate;screen printing on said electrical circuit of at least a first electrode;screen printing on said at least first electrode of a sheet of piezoelectric material;screen printing on said sheet of at least a second electrode; ...

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Номер записи: 57
17-03-2016 дата публикации

"Piston Stroke Sensor Arrangement for a Brake Unit"

Номер: US20160075320A1
Автор: Finch, JR. Glyn A., Koon Maria, Mathern Peter D.
Принадлежит:

A piston stroke sensor arrangement for a brake unit includes a brake unit including a piston and a piston tube, and a proximity sensor supported on the brake unit. The proximity sensor may determine the location of the piston within the brake unit based on the position of the piston tube relative to the proximity sensor. The proximity sensor may be an inductive proximity sensor. A groove may be defined in an outer circumferential surface of the piston tube. When the brake unit is in a non-applied position, the proximity sensor may detect metal of the piston tube. When the brake unit is in an applied position, the proximity sensor may not detect the metal of the piston tube. 1. A piston stroke sensor arrangement for a brake unit , comprising:the brake unit comprising a piston and a piston tube; anda proximity sensor supported on the brake unit, wherein the proximity sensor determines the location of the piston within the brake unit based on the position of the piston tube relative to the proximity sensor,wherein a groove is defined in an outer circumferential surface of the piston tube, andwherein, when the brake unit is in an applied position, the proximity sensor is directed towards the groove on the piston tube and does not detect metal of the piston tube, andwherein, when the brake unit is in a non-applied position, the proximity sensor is directed towards a portion of the piston tube that does not include the groove and detects the metal of the piston tube.2. The piston stroke sensor arrangement as claimed in claim 1 , the proximity sensor further comprising an inductive proximity sensor.3. (canceled)4. (canceled)5. The piston stroke sensor arrangement as claimed in claim 1 , wherein a protrusion is provided on an outer circumferential surface of the piston tube claim 1 , andwherein, when the brake unit is applied, the proximity sensor is directed towards the protrusion on the piston tube, andwherein, when the brake unit is not applied, the proximity sensor is ...

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Номер записи: 58
15-03-2018 дата публикации

INTEGRATED WIRELESS DATA SYSTEM FOR A VEHICLE WHEEL HUB ASSEMBLY

Номер: US20180072113A1
Автор: Baker Douglas Martin
Принадлежит:

The present disclosure generally relates to an integrated wireless data system and method for mounting the system on one or more components within a vehicle wheel hub assembly for measuring operational data relating to the condition or status of a brake rotor or other components within a wheel hub assembly, where the integrated wireless data system rotates with the vehicle wheel. 1. An integrated wireless data system for measuring operational characteristics of a wheel hub assembly in a vehicle , comprising:a remote unit having at least one sensor and a remote transceiver and an A/D converter and a microprocessor for measuring operational data of the wheel hub assembly;said remote unit including a power source connected to and providing power to said remote unit;a base unit having a base transceiver and a microprocessor connected to and in communication with a data acquisition system; andsaid remote unit and base unit wirelessly communicating with one another to exchange the operational data in real-time and bi-directionally.2. The system of claim 1 , wherein said remote unit includes a power management strategy for optimizing a life of said power source claim 1 , including a sleep mode for said remote unit when said remote unit is not in use.3. The system of claim 2 , wherein said remote unit contains an energy harvesting device to charge said power source and further prolong the life of said power source.4. The system of claim 1 , wherein said remote unit is mounted on the wheel hub assembly.5. The system of claim 4 , wherein said at least one sensor includes a thermocouple mounted to a brake rotor coupled to the wheel hub assembly and connected to said remote unit claim 4 , wherein said remote unit is configured to measure a temperature of the brake rotor.6. The system of wherein said base unit is adapted to send a signal to said remote unit to alter data acquisition parameters of the operational data.7. The system of claim 1 , wherein said base unit includes ...

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Номер записи: 59
15-03-2018 дата публикации

ELECTRICALLY POWERED BRAKE DEVICE

Номер: US20180072295A1
Автор: Masuda Yui
Принадлежит: NTN CORPORATION

This electric brake device includes: a brake rotor; a friction member; friction member operator configured to bring the friction member into contact with the brake rotor; an electric motor configured to drive the friction member operator; and a controller configured to control a braking force by means of the electric motor. The controller includes: heat balance degree estimator configured to estimate a balance degree among heat generation amounts of a plurality of exciting coils in the electric motor; and heat load balancing section configured to decrease a heat generation amount of a specific exciting coil when the heat balance degree estimator has estimated that the heat generation amount of the specific exciting coil among the plurality of exciting coils is larger than heat generation amounts of the other exciting coils. 1. An electric brake device comprising:a brake rotor;a friction member configured to be brought into contact with the brake rotor;a friction member operator configured to bring the friction member into contact with the brake rotor;an electric motor configured to drive the friction member operator; anda controller configured to control a braking force by means of the electric motor, wherein a heat balance degree estimator configured to estimate a balance degree among heat generation amounts of a plurality of exciting coils in the electric motor; and', 'a heat load balancing section configured to decrease a heat generation amount of a specific exciting coil, when the heat balance degree estimator has estimated that the heat generation amount of the specific exciting coil among the plurality of exciting coils is larger than heat generation amounts of the other exciting coils., 'the controller includes2. The electric brake device as claimed in claim 1 , comprisinga braking force estimator configured to determine an estimated value of a braking force that occurs by the friction member being pressed against the brake rotor, whereinthe controller ...

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Номер записи: 60
07-03-2019 дата публикации

ROTARY TABLE DEVICE AND METHOD OF CONTROLLING THE ROTARY TABLE DEVICE

Номер: US20190070704A1
Автор: XIA Zhizhen
Принадлежит:

In a method of controlling a rotary table device, a clamp mechanism drive unit is controlled to unclamp a brake disk. Thereafter, a pressure of working fluid supplied to an unclamp fluid chamber is decreased, and a motor drive unit is controlled to rotate a motor. Then, the abrasion quantity of the piston and the clamp member is calculated based on a reference pressure and a pressure when the load torque of a spindle exceeded a reference load torque. 1. A rotary table device including a clamp mechanism , the clamp mechanism comprising:a brake disk configured to rotate together with a spindle which rotates a workpiece;a piston configured to move in a clamping direction in which the brake disk is clamped and an unclamping direction in which the brake disk is unclamped;a clamp member configured to hold the brake disk between the clamp member and the piston which has moved in the clamping direction; anda biasing member configured to bias the piston by a restoration force of elastic deformation in the clamping direction,the rotary table device comprising:a clamp mechanism drive unit configured to supply working fluid to a clamp fluid chamber to move the piston in the clamping direction, in a case of clamping the brake disk, and supply the working fluid to an unclamp fluid chamber to move the piston in the unclamping direction and change a pressure of the supplied working fluid, in a case of unclamping the brake disk,a motor drive unit configured to drive the motor which rotates the spindle;a pressure detection unit configured to detect the pressure of the working fluid;a load detection unit configured to detect the load torque of the spindle;a drive control unit configured to control the clamp mechanism drive unit to unclamp the brake disk, and thereafter, decrease the pressure of the working fluid supplied to the unclamp fluid chamber and control the motor drive unit to rotate the motor; andan abrasion quantity calculation unit configured to calculate an abrasion ...

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Номер записи: 61
24-03-2022 дата публикации

BRAKE ASSEMBLY HAVING A SENSOR

Номер: US20220089139A1
Автор: Adkins Alexander, Philpott Daniel, Polmear Christopher, Sakhare Sukrut
Принадлежит: ARVINMERITOR TECHNOLOGY, LLC

A brake assembly having a sensor assembly that is received inside a shaft of a wear adjuster mechanism. The wear adjuster mechanism may be at least partially received inside a piston that may be rotatable about the axis and may be at least partially received in a tappet. The sensor may provide a signal that is indicative of rotation of the shaft. 1. A brake assembly comprising:a brake caliper;a tappet that is moveable along an axis with respect to the brake caliper and that is adapted to engage a brake pad assembly;a piston that is rotatable about the axis and is at least partially received in the tappet, wherein the piston and tappet have mating threads;a wear adjuster mechanism that is at least partially received inside the piston, wherein the wear adjuster mechanism includes a shaft that is rotatable about the axis; anda sensor assembly that is received inside the shaft and that provides a signal indicative of rotation of the shaft.2. The brake assembly of wherein the shaft has a shaft cavity extends along the axis from a first end of the shaft to a second end of the shaft and the sensor assembly is received inside the shaft cavity.3. The brake assembly of wherein the sensor assembly includes a sensor housing that is received inside the shaft cavity and that is rotatable about the axis with the shaft.4. The brake assembly of wherein the sensor housing is spaced apart from the shaft.5. The brake assembly of wherein an end cap is fixedly mounted to the piston claim 3 , and the sensor assembly has a sensor that is received in the sensor housing and a sensor shaft that extends from the sensor housing and that is rotatable with the end cap and the piston claim 3 , wherein the sensor detects rotation of the sensor shaft about the axis with respect to the sensor housing.6. The brake assembly of wherein the sensor shaft extends along the axis and is spaced apart from the shaft.7. The brake assembly of wherein the end cap has an end cap hole that receives an adapter that ...

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Номер записи: 62
07-03-2019 дата публикации

Brake pad life prognosis system for regenerative braking vehicles

Номер: US20190071062A1
Автор: David B. Antanaitis, Mark T. Riefe, Matthew A. Robere
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A system for determining thickness of a brake pad includes a controller configured to provide a total braking energy of a vehicle with a regenerative energy braking system, and a rotor braking system that includes a plurality of brake pads. The system controller determines the work done by the brake pads as a combination of front brake pad work and rear brake pad work, then accumulates the brake pad wear to provide an estimation of the brake pad thickness using the front brake pad work and the rear brake pad work. The controller outputs a message indicative of the estimation of the brake pad thickness via an output system in communication with the controller

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Номер записи: 63
07-03-2019 дата публикации

HEALTH MONITORING FOR A LINE REPLACEABLE UNIT (LRU)

Номер: US20190071063A1
Автор: Georgin Marc, Kordik Michael
Принадлежит: GOODRICH CORPORATION

A BCU for determining a health status of a LRU having a coil includes a non-transitory memory configured to store instructions and a controller coupled to the non-transitory memory. The controller is designed to receive a temperature from a temperature sensor, to receive a direct current (DC) voltage that is applied to the coil of the LRU, and to receive a detected current corresponding to an amount of current flowing through the coil. The controller is further designed to determine a calculated resistance of the coil based on the detected current and the DC voltage and to determine a compensated resistance of the coil based on the temperature and the calculated resistance of the coil. The controller is further designed to determine the health status of the LRU by comparing the compensated resistance of the coil to a nominal resistance of the coil. 1. A brake control unit (BCU) for determining a health status of a line replaceable unit (LRU) having a coil , comprising:a non-transitory memory configured to store instructions; and receive a temperature from a temperature sensor,', 'receive a direct current (DC) voltage that is applied to the coil of the LRU,', 'receive a detected current corresponding to an amount of current flowing through the coil,', 'determine a calculated resistance of the coil based on the detected current and the DC voltage,', 'determine a compensated resistance of the coil based on the temperature and the calculated resistance of the coil, and', 'determine the health status of the LRU by comparing the compensated resistance of the coil to a nominal resistance of the coil., 'a controller coupled to the non-transitory memory and configured to2. The BCU of claim 1 , wherein the temperature includes a brake temperature detected by a brake temperature sensor (BTS) and an ambient temperature detected by an auxiliary temperature sensor separated from the BTS claim 1 , and the controller is further configured to determine the compensated resistance of ...

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Номер записи: 64
07-03-2019 дата публикации

METHOD FOR MANUFACTURING A SENSORIZED BRAKING ELEMENT, IN PARTICULAR A BRAKE PAD AND A SENSORIZED BRAKE PAD OBTAINED THEREBY

Номер: US20190072143A1
Автор: Donzelli Daniele, Martinotto Luca, Merlo Fabrizio, Solari Mattia
Принадлежит:

A method in which at least one piezoceramic sensor and an electric circuit to collect an electric signal emitted by the piezoceramic sensor when subjected to a mechanical stress and possibly processing it are made as an electrically insulated unit. The unit is equipped with at least a branching ending with respective electric contacts and having the connected at least one piezoelectric sensor. The electric circuit and the at least one sensor are mechanically fixed integral with a first surface of a supporting metal element of a brake pad. Branching is formed so as to position the at least one piezoelectric sensor at a predetermined point of the first surface. 1. A method for making sensorized brake elements for vehicles , comprising the steps of integrating directly on a first surface of a supporting metal element of the brake element intended in use to be facing an element to be braked , such as a disk or drum , of a vehicle:at least one piezoceramic sensor adapted to emit an electric signal when subjected to a mechanical stress; andan electric circuit configured for capturing the electric signal and processing the captured electric signal;whereinthe electric circuit is made as an electrically insulated unit equipped with at least one branching ending with respective electric contacts for the at least one piezoceramic sensor;the at least one piezoceramic sensor being electrically and mechanically connected to the electric contacts arranged at an end of the at least one branching;in which the electric circuit and the at least one piezoceramic sensor are mechanically and integrally fixed to the first surface of the supporting metal element; andthe branching being configured for positioning the at least one piezoceramic sensor at a predetermined point of the first surface of the supporting metal element.2. A method according to claim 1 , wherein the first surface of the supporting metal element is provided with at least one seat for the at least one piezoceramic ...

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Номер записи: 65
18-03-2021 дата публикации

VEHICLE BRAKE SYSTEM

Номер: US20210078618A1
Автор: BEAUVOIS Damien, GONCALVES Claudino
Принадлежит:

Disclosed is a brake system for a railroad vehicle, including a parking brake provided with a piston and having a first configuration in which the piston is in a working position in which it acts on a lining support and applies a predetermined force to a brake disc; a second configuration in which the piston is in a rest position in which it does not act on the support and does not apply any force to the disc; and a third configuration in which, when the vehicle is not at a standstill and the ambient temperature in the environment of the disc is greater than a threshold value, it forces the piston to move towards a trip position different from its working and rest positions, in order to limit or cancel the force applied to the disc. 1. A vehicle braking system comprising:a braking member;a parking brake having an actuator configured to move a braking piston to act on the braking member to apply a load to the braking member,wherein, in a first configuration while the vehicle is moving and an ambient temperature is warmer than a predetermined threshold temperature, the actuator of the parking brake is configured to move from a working position to a fuse position that is different from a resting position,wherein the load applied to the braking member by the actuator is reduced relative to the working position or is eliminated while the actuator is in the first configuration.2. The vehicle braking system of claim 1 , wherein claim 1 , in a second configuration claim 1 , the actuator is in a resting position where the actuator does not apply the load to the braking member and claim 1 , in a third configuration claim 1 , the actuator is configured to apply the load to the braking member and apply the parking brake.3. The vehicle braking system of claim 2 , wherein the actuator includes a spring member in a cavity that also includes the braking piston that delimits a pressure chamber in the actuator.4. The vehicle braking system of claim 3 , wherein the pressure chamber of ...

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Номер записи: 66
14-03-2019 дата публикации

ENERGY BASED PARK BRAKE END OF LIFE DETECTION SYSTEM AND METHOD

Номер: US20190077390A1
Автор: Guo Haibo, Hartman Brian, Vora Kushan
Принадлежит: CNH INDUSTRIAL AMERICA LLC

A vehicle including a shaft, a park brake connected to the shaft and configured to retard a rotation of the shaft, and a park brake prognosis system associated with the shaft and the park brake. The park brake prognosis system includes a controller that is configured to calculate a status of the park brake dependent on a park brake energy of at least one engagement of the park brake and a first sensor operably coupled to the controller and the shaft. The first sensor is configured to provide a speed of the shaft. The park brake prognosis system also includes a second sensor operably coupled to the controller and the shaft. The second sensor is configured to provide an instantaneous torque of the shaft. 1. A vehicle , comprising:a shaft;a park brake connected to the shaft and configured to retard a rotation of the shaft; and a controller configured to calculate a status of said park brake dependent on a park brake energy of at least one engagement of said park brake;', 'a first sensor operably coupled to the controller and the shaft, said first sensor configured to provide a speed of the shaft; and', 'a second sensor operably coupled to the controller and the shaft, said second sensor configured to provide an instantaneous torque of the shaft., 'a park brake prognosis system associated with the shaft and the park brake, including2. The vehicle of claim 1 , further including an indicator operably coupled to the controller and configured for notifying an individual of said status calculated by the controller.3. The vehicle of claim 1 , wherein said park brake energy is a function of the speed of the shaft and the instantaneous torque of the shaft.4. The vehicle of claim 1 , wherein said status is a park brake near end of life status.5. The vehicle of claim 2 , wherein said controller further includes a memory.6. The vehicle of claim 5 , wherein said memory includes a set of predetermined values corresponding to a maximum number of engagements that said park brake may ...

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Номер записи: 67
05-03-2020 дата публикации

Fan brake control system

Номер: US20200076334A1
Автор: Brian A. Lesniak, David F. Johnston, John W. Stacks, Michael M. Mahler, Thomas R. Hendrix
Принадлежит: Babcock and Wilcox SPIG Inc

A control system for mechanical braking devices is provided. The control system is designed to selectively slow, stop, and lock in place rotating machinery that is turning at an RPM that may be much greater than zero while helping minimize shock load on the rotating machinery. A fan brake control system is provided which can include: a fan brake; a position sensor; a microcontroller; an actuator; an operator interface; and a fan motor interface.

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Номер записи: 68
23-03-2017 дата публикации

Vehicle control apparatus and control method thereof

Номер: US20170080909A1
Автор: Wook-Hyeon KIM
Принадлежит: Mando Corp

Disclosed herein are a vehicle control apparatus and a vehicle control method thereof. The vehicle control apparatus includes an input unit to receive first current heat energy calculation information, receive second current heat energy calculation information, and receive a current degree of slope; an estimator to estimate a current temperature of the brake apparatus on the basis of information regarding the difference between the first current heat energy calculation information and the second current heat energy calculation information; a compensator to compensate for braking power between the brake apparatus and the brake friction material; and a controller to receive the first current heat energy calculation information, the second current heat energy calculation information, and the current degree of slope, transmit an estimation command to the estimator, and transmit a compensation command to the compensator.

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Номер записи: 69
24-03-2016 дата публикации

Method of Operating a Brake

Номер: US20160084330A1
Автор: Peter Gibbens, Prashant Narula
Принадлежит: Meritor Heavy Vehicle Braking Systems UK Ltd

A method of operating a mechanically operated brake having an electric motor for operating an adjuster mechanism that may include the steps of: a) providing a brake rotor and friction material for selective engagement with the brake rotor, b) providing a target running clearance between the brake rotor and the friction material, c) applying the brake by forcing the friction material into engagement with the brake rotor, d) determining that the friction material is set in a compressed condition, e) releasing the brake, f) operating the electric motor to operate the adjuster mechanism to adjust the instantaneous running clearance towards the target running clearance, g) then applying the brake.

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Номер записи: 70
24-03-2016 дата публикации

METHOD AND DEVICE FOR REAL TIME ESTIMATION OF THE APPLIED PRESSURE AND OF NOISINESS IN A BRAKE ELEMENT, IN PARTICULAR A BRAKE PAD

Номер: US20160084331A1
Автор: Donzelli Daniele, Martinotto Luca, Merlo Fabrizio, Solari Mattia
Принадлежит:

A brake element is sensorized by at least one piezoceramic sensor arranged between a metallic support element and a block of friction material of a brake element, the sensor being completely embedded within the block. An electrical voltage signal generated by at least one piezoceramic sensor, without the need for a power supply, is picked up by an electrical circuit integrated into the metallic support element. The electrical voltage signal is processed in the form of equal length of samples per unit of time of the detected signal by successively processing in real time each sample of equal length of time sample of the signal by applying an algorithm. The algorithm is selected from at least one of a sequence of integrations of voltage values in the sample carried out in an interval of time in the order of milliseconds; FFT voltage data sample; and integral of the voltage data sample. 1. A method for the real time estimation of the applied pressure and noisiness in a brake element , the method comprising the steps of:i)—providing at least one piezoceramic sensor between a friction material block and a metallic support element of the brake element, the at least one piezoceramic sensor being connected to an electric circuit;ii)—with the brake element in use, picking up from said at least one piezoceramic sensor, by means of said circuit, a respective electric voltage signal (ST) generated by the at least one piezoceramic sensor in response to the application of a mechanical stress on the at least one sensor;iii)—processing in real time the electric voltage signal (ST) by taking equal length of time samples of said electric voltage signal; andiv)—processing in real time each said equal length of time samples of said electric voltage signal by applying an algorithm selected from at least one of the group consisting of: sequence of integrations of the voltage values present in the sample, each integration being carried out in an interval of time in the order of ...

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Номер записи: 71
23-03-2017 дата публикации

SENSOR-EQUIPPED VEHICLE BRAKING SYSTEMS, DEVICES, AND METHODS

Номер: US20170082163A1
Автор: Donzelli Daniele, Martinotto Luca, Serra Stefano, Solari Mattia, Terranova Marco
Принадлежит:

Methods, devices, and systems, for analyzing and managing data generated by a sensor-equipped braking system for vehicles, comprising a support element a block of friction material, at least one sensor interposed between the block of friction material and the support element, comprising at least one central control unit capable of receiving in real time from the sensor means at least the basic data related to one or more of the pressure of the activated braking system, the temperature of the activated braking system, the braking torque, the residual braking torque when the braking system is deactivated, and the wear on the braking system during and after activation thereof. The system can also include one or more auxiliary sensors. 1. A system configured to generate data using a sensor-equipped brake unit , the system comprising: a support;', 'a friction material connected with the support and configured to interface with a brake disk or brake drum; and', 'at least one of a pressure sensor or a temperature sensor positioned between the friction material and the support and configured to output first sensor data;', 'at least one auxiliary sensor configured to output second sensor data indicative of one or more of a location and a kinematic state of a vehicle incorporating the braking unit;, 'a braking device comprising, 'a braking unit comprisingone or more memory devices; anda computing system comprising one or more hardware processors configured to receive the first sensor data and the second sensor data,2. The system of claim 1 , wherein the at least one of a pressure sensor or a temperature sensor comprises a piezoceramic sensor.3. The system of claim 1 , wherein the computing system is configured to store in the one or more memory devices first samples of the first sensor data or derived therefrom claim 1 , and second samples of the location data or derived therefrom claim 1 , such that respective first samples correspond to respective second samples captured at ...

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Номер записи: 72
23-03-2017 дата публикации

Smart braking devices, systems, and methods with signal conditioners

Номер: US20170082165A1
Автор: Daniele Donzelli, Luca Martinotto, Marco Terranova, Mattia Solari, Stefano Serra
Принадлежит: ITT Italia SRL

Various braking devices, systems, and methods are disclosed. In some embodiments, the braking device includes a support element, a block of friction material supported by the support element, at least one piezoceramic sensor supported by the support element and interposed between the block of friction material (and the support element, and a protective element located at the piezoceramic sensor and embedding the latter. The protective element can have one or more layers of resin-based material applied to protect the piezoceramic sensor and direct a predetermined part of the external compression force onto an area of the support element surrounding the piezoceramic sensor. In some embodiments, a signal transduction device is provided and includes at least one piezoceramic sensor supported on a support element and has an integral protective coating having properties of mechanical and temperature resistance.

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Номер записи: 73
23-03-2017 дата публикации

SMART BRAKING DEVICES, SYSTEMS, AND METHODS WITH RESIN FEATURES

Номер: US20170082166A1
Автор: Galimberti Paolo, Martinotto Luca, Merlo Fabrizio, Serra Stefano, Xicola Augusti Sin
Принадлежит:

Various braking devices, systems, and methods are disclosed. In some embodiments, the braking device includes a support element, a block of friction material supported by the support element, at least one piezoceramic sensor supported by the support element and interposed between the block of friction material (and the support element, and a protective element located at the piezoceramic sensor and embedding the latter. The protective element can have one or more layers of resin-based material applied to protect the piezoceramic sensor and direct a predetermined part of the external compression force onto an area of the support element surrounding the piezoceramic sensor. In some embodiments, a signal transduction device is provided and includes at least one piezoceramic sensor supported on a support element and has an integral protective coating having properties of mechanical and temperature resistance. 1. A braking device for vehicles , the device comprising:a support element;a block of friction material connected with the support element;a piezoceramic sensor located between the block of friction material and the support element;an electrically insulated electrical circuit, the electrical circuit being connected to the piezoceramic sensor, the electrical circuit configured to receive an electric response signal emitted by the piezoceramic sensor when the braking device is subjected to an external compression force; anda protective element having one or more layers of resin-based material, the protective element being configured to direct a portion of the external compression force onto an area of the support element adjacent to the piezoceramic sensor,wherein the resin-based material has substantially stable mechanical properties in a temperature interval between −40° C. and 200° C., such that the protective element substantially limits or cancels-out a variation in the response signal of the piezoceramic sensor throughout the temperature interval.2. The braking ...

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Номер записи: 74
23-03-2017 дата публикации

SIGNAL TRANSDUCER DEVICES, SYSTEMS, AND METHODS

Номер: US20170082167A1
Автор: Donzelli Daniele, Martinotto Luca, Serra Stefano, Solari Mattia, Terranova Marco
Принадлежит:

Various braking devices, systems, and methods are disclosed. In some embodiments, the braking device includes a support element, a block of friction material supported by the support element, at least one piezoceramic sensor supported by the support element and interposed between the block of friction material (and the support element, and a protective element located at the piezoceramic sensor and embedding the latter. The protective element can have one or more layers of resin-based material applied to protect the piezoceramic sensor and direct a predetermined part of the external compression force onto an area of the support element surrounding the piezoceramic sensor. In some embodiments, a signal transduction device is provided and includes at least one piezoceramic sensor supported on a support element and has an integral protective coating having properties of mechanical and temperature resistance. 1. A signal transduction device comprising:a support element;an electrically insulated electric circuit connected with the support element;a piezoceramic sensor connected with the support element, the piezoceramic sensor configured to transmit a signal to the electric circuit; and a main body comprising an electrically insulating material, and', 'an element comprising a thermally insulating material, the element connected with the main body and being in contact with the support element at a region substantially perimetrally surrounding the piezoceramic sensor, the element configured to direct a predetermined portion of an external compression force acting on the signal transduction device onto the region of the support element substantially perimetrally surrounding the piezoceramic sensor., 'an integral protective coating provided on the piezoceramic sensor and having properties of mechanical strength and temperature resistance, the integral protective coating comprising2. The signal transduction device according to claim 1 , wherein the protective coating is ...

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Номер записи: 75
12-03-2020 дата публикации

CONTROLLING AIRCRAFT WHEEL BRAKES

Номер: US20200079332A1
Автор: GADD Matthew, Reid David
Принадлежит:

A method for controlling the application of aircraft wheel brakes including: controlling the application of a first wheel brake of an aircraft and a second wheel brake of the aircraft in dependence upon a determined relationship to control the time taken for the first wheel brake and the second wheel brake to reach respective specified temperatures. The relationship is determined between a first cooling characteristic of the first wheel brake, according to which the first wheel brake cools when in a first retracted position within the aircraft, and a second cooling characteristic of the second wheel brake, according to which the second wheel brake cools when in a second retracted position within the aircraft. 1. A method of controlling application of aircraft wheel brakes , the method comprising:controlling application of a first wheel brake of an aircraft and a second wheel brake of the aircraft in dependence upon a determined relationship in order to control a period during which the first wheel brake and the second wheel brake reach respective specified temperatures,wherein, the relationship is determined between a first cooling characteristic of the first wheel brake, according to which first cooling characteristic the first wheel brake cools when in a first retracted position within the aircraft, and a second cooling characteristic of the second wheel brake, according to which second cooling characteristic the second wheel brake cools when in a second retracted position within the aircraft.2. The method according to claim 1 , comprising determining at least the first cooling characteristic and/or the second cooling characteristic.3. The method according to claim 2 , wherein:the first cooling characteristic is determined based on a first wear indication which indicates the wear state of the first wheel brake; and/orthe second cooling characteristic is determined based on a second indication which indicates the wear state of the second wheel brake.4. The method ...

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Номер записи: 76
21-03-2019 дата публикации

HYBRID BRAKE-BY-WIRE SYSTEM USING A MOTOR-MAGNETOSTRICTIVE ACTUATOR COMBINATION

Номер: US20190084543A1
Автор: BAI Xianxu, CAI Feilong, LI YANG, QIAN Lijun, SI Zhiyuan
Принадлежит:

The present invention discloses a motor-magnetostrictive actuator hybrid brake-by-wire system. The system includes a motor, a transmission mechanism, a magnetostrictive-driving piston mechanism and a floating-caliper disc mechanism. The transmission mechanism includes a planetary gear set and a screw set, and is driven by the motor. The linear motion of the sleeve is achieved by the planetary gear set and screw set. The sleeve pushes forward the piston head of the magnetostrictive-driving piston mechanism and the piston head pushes forward the brake pad back plate of the floating-caliper disc mechanism to clamp the brake disc, which accomplishes braking. The present invention uses the motor and the magnetostrictive-driving piston mechanism as a combined BBW system, which will simultaneously solve the problems of slow response, low precision and motor stalling effect of the only motor-driving braking systems and, also avoid the drawback of insufficient mechanical capabilities of the only magnetostrictive actuator-driving braking systems. 1. A hybrid BBW system using a motor-magnetostrictive actuator combination , comprising:a motor, a transmission mechanism, a magnetostrictive-driving piston mechanism and a floating-caliper disc mechanism,wherein the transmission mechanism including a planetary gear set and a screw set is driven by the motor;the linear motion of a sleeve is achieved by the transmission of the planetary gear set and a screw set; anda piston head of the magnetostrictive-driving piston mechanism pushed forward by both the sleeve and the magnetostrictive rod drives the brake pad back plate to squeeze the brake disc through the right and left brake pads of the floating-caliper disc mechanism, which accomplishes braking.2. The hybrid BBW system using a motor-magnetostrictive actuator combination as claimed in claim 1 , whereinthe motor includes a stator and a rotor;the ring gear of the planetary gear set fixedly connected with the rotor is driven by the ...

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Номер записи: 77
21-03-2019 дата публикации

Rail vehicle braking system for a rail vehicle

Номер: US20190084597A1
Автор: Claudino Goncalves, Damien Beauvois
Принадлежит: Faiveley Transport Amiens SAS

Disclosed is a brake system for a railroad vehicle, including a parking brake provided with a piston and having a first configuration in which the piston is in a working position in which it acts on a lining support and applies a predetermined force to a brake disc; a second configuration in which the piston is in a rest position in which it does not act on the support and does not apply any force to the disc; and a third configuration in which, when the vehicle is not at a standstill and the ambient temperature in the environment of the disc is greater than a threshold value, it forces the piston to move towards a trip position different from its working and rest positions, in order to limit or cancel the force applied to the disc.

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Номер записи: 78
30-03-2017 дата публикации

POSITION DETERMINING METHOD FOR A PARKING LOCK

Номер: US20170088111A1
Автор: Kirchner Eckhard
Принадлежит:

A method for determining the position of a first actuating element of an electrical parking lock device of a motor vehicle, wherein the first actuating element is mounted on a spindle in an axially mobile manner, where the method includes a step in which the first actuating element is moved in an opening direction to a stop, the spindle is then rotated to move the first actuating element in a closing direction, the current input and the energy consumption of a driver are captured at this point, provision is then made for identifying a first reference point if the current input of the spindle drive increases or decreases by at least a first threshold value, the first reference point is assigned to the energy consumption that has been captured, where the first reference point corresponds to the first actuating element coming into contact with an actuating pawl: 1. A method for determining a position of a first actuating element of an electrical parking lock device of a motor vehicle , the first actuating element being mounted on a spindle in an axially mobile manner , the method comprising:a) moving the first actuating element in an opening direction to a stop;b) rotating the spindle in order to move the first actuating element in a closing direction, and capturing a current input and an energy consumption of a driver; and 'wherein the first reference point is assigned to the energy consumption captured in step b) and the first reference point corresponds to the first actuating element coming into contact with an actuating pawl.', 'c) identifying a first reference point if the captured current input of the driver increases or decreases by at least a first threshold value;'}2. A method for determining a position of a first actuating element of an electrical parking lock device of a motor vehicle , the first actuating element being axially moveable via a linear actuator , the method comprising:a) moving the first actuating element in an opening direction to a stop;b) ...

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Номер записи: 79
19-03-2020 дата публикации

Brake beam wear guide

Номер: US20200086898A1
Автор: Ronald D. Golembiewski, Walter J. Peach
Принадлежит: Standard Car Truck Co

Various embodiments provided a railroad car brake beam wear guide for mounting in a brake beam guide bracket of a railroad car truck side frame and including a spacer that partially defines a slide-way for a brake beam lug of a brake beam and that limits lateral movement of the brake beam. In various embodiments, the wear guide can be employed for other uses besides for railroad cars.

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Номер записи: 80
19-03-2020 дата публикации

RESIDUAL BRAKING TORQUE INDICATION DEVICES, SYSTEMS, AND METHODS

Номер: US20200088256A1
Автор: Solari Mattia, Terranova Marco
Принадлежит:

Various residual braking torque indication devices, systems, and methods are described. The devices, systems, and methods can include a sensorized brake pad. An output signal of the sensorized brake pad can be processed to provide an indication of a residual braking torque. The residual braking torque indicator can be calibrated to reference data to provide an actual measurement of the residual braking torque. 1. (canceled)2. A method of measuring residual braking torque applied by a brake pad to a brake rotor of a vehicle , the method comprising:detecting, using a force sensor on the brake pad, braking force applied by the brake pad to the brake rotor;outputting, from the force sensor to a processor, signals indicating the braking force; anddetermining, with the processor and using the signals indicating the braking force, the residual braking torque applied by the brake pad to the brake rotor.3. The method according to claim 2 , wherein the braking force comprises at least one of shear force and pressure applied by the brake pad to the brake rotor.4. The method according to claim 3 , wherein determining the residual braking torque further comprises determining a residual braking torque indicator by at least one of frequency domain and time domain analysis of the signals.5. The method according to claim 4 , wherein determining the residual braking torque further comprises converting the residual braking torque indicator using a calibration curve claim 4 , the calibration curve comprising a relationship between residual torque indicators and residual braking torque.6. The method according to claim 4 , wherein the residual braking torque is determined based on empirical test data of measured residual braking torque.7. A device for measuring residual braking torque applied by a brake pad to a brake rotor of a vehicle claim 4 , the device comprising:a force sensor positioned on the brake pad, the force sensor configured to output signals indicating at least one of ...

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Номер записи: 81
12-05-2022 дата публикации

Brake system and method for controlling a brake system

Номер: US20220144228A1
Автор: LEITER Ralf
Принадлежит:

The invention relates to a brake system for a vehicle, comprising at least one brake (-), at least one sensor (-) for measuring a temperature of the at least one brake (-), and a control unit (). The control unit () is configured for receiving an actuating signal demanding a brake actuation, and for receiving temperature data from the at least one sensor (-), indicating the temperature measured by the at least one sensor (-). The control unit () is further configured for effecting a brake torque of the at least one brake (-) based on the actuating signal. The control unit () is furthermore configured for controlling the brake torque of the at least one brake (-) based on the temperature data. The invention also relates to a method for controlling a brake system of a vehicle. 2. The brake system according to claim 1 , wherein claim 1 , for a given actuating signal claim 1 , the brake torque of the at least one brake is controlled in a closed loop control.4. The brake system according to claim 3 , wherein the first wheel is a front wheel of the vehicle and the second wheel is a rear wheel of the vehicle claim 3 , and the control unit is configured for adapting a front/rear brake-torque distribution based on the temperature data and/or wherein the first wheel is a left wheel of the vehicle and the second wheel is a right wheel of the vehicle and the control unit is configured for adapting a left/right brake-torque distribution based on the temperature data.5. The brake system according to claim 1 , wherein the at least one sensor has a temporal resolution of less than one second claim 1 , preferably less than 0.1 seconds claim 1 , particularly preferably less than 0.01 seconds and wherein the control unit is configured for adapting the brake torque for the at least one brake within less than one second claim 1 , preferably less than 0.1 seconds claim 1 , particularly preferably less than 0.01 seconds after a change in the temperature is detected by the at least one ...

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Номер записи: 82
01-04-2021 дата публикации

ELECTRIC MOTOR CONTROL DEVICE AND BRAKE DEVICE

Номер: US20210095733A1
Автор: FUJITA Haruhiko
Принадлежит:

An electric motor control device includes a control board that controls the driving of an electric motor and temperature detecting portions disposed on the control board at least at two locations that differ in temperature change tendency. 1. An electric motor control device comprising:a control board configured to control driving of an electric motor, andtemperature detecting portions disposed on the control board at least at two locations that differ in temperature change tendency.2. The electric motor control device according to claim 1 ,the electric motor control device being configured to estimate temperature of the electric motor based on ambient temperature obtained from outputs of the temperature detecting portions.3. The electric motor control device according to claim 1 ,the electric motor control device being configured to estimate temperature of the electric motor based on ambient temperature obtained from outputs of the temperature detecting portions and control the electric motor.4. An electric motor control device claim 1 ,the electric motor control device being configured to estimate temperature of an electric motor based on ambient temperature obtained from outputs of at least two temperature detecting portions, which differ in temperature change tendency, and control the electric motor.5. A brake device comprising:an electric motor configured to press a braking member against a braked member to generate a braking force, anda control board configured to control driving of the electric motor,the control board including:a first temperature detecting portion disposed on the control board and configured to detect temperature, anda second temperature detecting portion disposed on the control board at a location where temperature differs in change tendency from temperature detected by the first temperature detecting portion.6. The brake device according to claim 5 ,wherein the first temperature detecting portion is disposed in a heat-generating portion of ...

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Номер записи: 83
28-03-2019 дата публикации

VEHICLE MONITORING BRAKE CONDITION AND METHOD FOR CONTROLLING THE SAME

Номер: US20190092309A1
Автор: AN Daeyun, HONG Gi Beom, Woo Seunghyun, YOUN Seok-Young
Принадлежит:

A vehicle displays a result of monitoring whether a loaded condition is abnormal based on a lining wear condition of a brake. The vehicle includes a lining wear condition detector to detect the lining wear condition of the brake, a load detector to detect a loaded condition, a controller to monitor whether the detected loaded condition is abnormal based on the lining wear condition, and a display to display a monitoring result. 1. A vehicle , comprising:a lining wear condition detector configured to detect a lining wear condition of a brake;a load detector configured to detect a loaded condition;a controller configured to monitor whether the detected loaded condition is abnormal based on the lining wear condition; anda display configured to display a monitoring result.2. The vehicle of claim 1 , wherein the controller is configured to claim 1 , if the detected lining wear condition is determined as being abnormal by comparison between the lining wear condition and a reference lining wear condition claim 1 , compare the loaded condition detected after the determination with a reference loaded condition corresponding to the abnormal lining wear condition and control the display to display that the loaded condition is abnormal.3. The vehicle of claim 2 , wherein the controller is configured to determine the reference loaded condition by comparing the loaded condition detected under the abnormal lining wear condition and the abnormal lining wear condition.4. The vehicle of claim 3 , wherein the controller is configured to determine the reference loaded condition by comparing a lining wear rate pattern at a position of a lining under the lining wear condition and an axial load pattern at a position to which pressure is applied by a load under the loaded condition.5. The vehicle of claim 4 , wherein the controller is configured to determine the reference loaded condition by comparing feature points between the lining wear rate pattern and the axial load pattern.6. The ...

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Номер записи: 84
14-04-2016 дата публикации

BRAKE WITH AUDIBLE LOCK-UP WARNING

Номер: US20160102723A1
Автор: Fiacchino Steve, Person Kurt W., Pfeil Lee A., Scheibe Steve
Принадлежит:

The present invention provides a braking system that is designed to give the rider of a vehicle an audible indication of an impending lock-up condition (i.e., a condition where the wheel of a wheeled vehicle or track or a snowmobile is not rotating relative to the vehicle). Preferably, the frequency of the audible indication is proportional to the speed of the wheel or track. In one embodiment, the characteristics of the sound (e.g., frequency) are tuned to achieve an audible indication that can be readily heard and perceived by a rider under specific conditions, such as when the rider is wearing a helmet and also in the presence of other noise, such as engine and exhaust noise. In general, an audible indication in the range of about 6 kHz+/−1 kHz is preferred. The audible indication can be altered by changing the geometry and dimensions of the brake rotor and brake pads. 1. A method of providing feedback regarding vehicle braking to a rider of a vehicle having a chassis and brakes affecting movement of a traction member relative to the chassis , comprising:applying the brakes;generating a sound having a frequency that is proportional to movement of the traction member relative to the chassis; andcontrolling braking based on the sound.2. A method as claimed in claim 1 , wherein the brake include a rotor coupled for rotation with the traction member and a brake pad mounted to the chassis claim 1 , and wherein the applying step include moving the pad toward the rotor.3. A method as claimed in claim 2 , wherein the frequency of the sound is proportional to a speed of the rotor relative to the brake pad.4. A method as claimed in claim 1 , wherein the traction member comprises at least one of a wheel and a track.5. A method as claimed in claim 1 , wherein the step of applying is initiated by the rider.6. A method as claimed in claim 1 , wherein the generating step includes creating the sound having a frequency of 5 kHz to 7 kHz.7. A method as claimed in claim 1 , wherein ...

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Номер записи: 85
03-07-2014 дата публикации

Tow Hitch System with Brake Sensor

Номер: US20140183841A1
Автор: Dustin Jones
Принадлежит: Dustin Jones

Sensors detect movement between a towing vehicle and a load and adjust braking forces proportionately to the movement.

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Номер записи: 86
08-04-2021 дата публикации

Electromagnetic brake device

Номер: US20210102587A1
Автор: Hiroshi Isono
Принадлежит: Toyota Motor Corp

An electromagnetic brake device presses a pressing plate against a brake rotor along an axis via a friction material by the electromagnetic force of an electromagnetic actuator. The electromagnetic brake device includes a support member that is disposed on the opposite side of the pressing plate to the brake rotor and that is supported by a housing so as to be displaceable along the axis and non-rotatable around the axis, and a shaft member that transmits a force in the direction along the axis between the pressing plate and the support member. An electromagnetic coil and an armature of the electromagnetic actuator are spaced apart from the pressing plate between the pressing plate and the support member, the electromagnetic coil is supported by the housing, and the armature is supported by the support member.

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Номер записи: 87
08-04-2021 дата публикации

SYSTEM AND METHOD CONFIGURED TO IDENTIFY CONDITIONS INDICATIVE OF ELECTROMAGNETIC BRAKE TEMPERATURE

Номер: US20210102589A1
Автор: Cardona Camilo, Millett Steven Michael, MU Tao, Shin Jeongki, Watson Benjamin J., Yoon KilMoon
Принадлежит:

This disclosure relates to a system and method configured to identify and, if necessary, respond to conditions indicative of electromagnetic brake temperature, and in particular relates to passenger conveyers, such as elevators, employing the system and method. More specifically, an example passenger conveyer system includes an electromagnetic brake and a controller configured to identify a condition indicative of a temperature of the electromagnetic brake approaching a boundary of a predetermined operating range. 1. A passenger conveyer system , comprising:an electromagnetic brake; anda controller configured to identify a condition indicative of a temperature of the electromagnetic brake approaching a boundary of a predetermined operating range.2. The passenger conveyer system as recited in claim 1 , wherein the controller is configured to take corrective action when the condition is identified.3. The passenger conveyer system as recited in claim 2 , wherein the controller is configured to at least temporarily stop operation of the passenger conveyer system when the condition is identified.4. The passenger conveyer system as recited in claim 1 , wherein the controller identifies the condition without directly determining a temperature of the electromagnetic brake.5. The passenger conveyer system as recited in claim 1 , further comprising:a motor mechanically connected to the electromagnetic brake;a torque sensor configured to provide an output indicative of a torque of the motor; andwherein the controller is configured to identify the condition when the output of the torque sensor exceeds a predetermined torque threshold.6. The passenger conveyer system as recited in claim 1 , wherein the controller is configured to identify the condition when a duty cycle of the passenger conveyer system exceeds a predetermined duty threshold.7. The passenger conveyer system as recited in claim 6 , wherein the controller determines the duty cycle by monitoring a status of a switch ...

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Номер записи: 88
04-04-2019 дата публикации

Additively-Manufactured Brake Pad Assembly with Controlled Compressibility Factor

Номер: US20190101173A1
Автор: Mohseni Hamidreza, Phipps Mark
Принадлежит:

A brake pad assembly having a consolidated lining comprised of an enhancement framework disposed within a tribological lining, the enhancement framework and tribological lining having substantially the same compressibility factor. The enhancement framework or tribological lining may advantageously be manufactured using an additive manufacturing technique. 1. A brake pad assembly comprising:a base plate having a surface;a tribological lining extending from the surface of the base plate, the tribological lining comprising a substantially homogenous-mixture composite and having a first compressibility factor; andan enhancement framework disposed within the tribological lining, the enhancement frame-work having a geometrically-repeating arrangement in a plane substantially parallel to the surface of the base plate from which the lining extends, the geometrically-repeating arrangement comprised of a number of spring-like structures, the spring-like structures having a second compressibility factor and wherein the second compressibility factor is substantially equal to the first compressibility factor.2. The brake pad assembly of claim 1 , wherein the spring-like structures comprise coil-shaped lattices.3. The brake pad assembly of claim 1 , wherein the enhancement framework is a metallic framework.4. The brake pad assembly of claim 1 , wherein the enhancement framework is a composite-material framework.5. The brake pad assembly of claim 1 , wherein the enhancement framework comprises spring-like structures in the form of an interlaced lattice.6. The brake pad assembly of claim 5 , wherein the interlaced lattice has a 3-dimensional structure.7. The brake pad assembly of claim 1 , wherein the spring-like structures are interlocking.8. The brake pad assembly of claim 1 , wherein the enhancement framework has substantially the same surface area at any plane within the extent of the tribological lining parallel to the surface of the baseplate from which the tribological ...

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Номер записи: 89
23-04-2015 дата публикации

Rotor Break Control System

Номер: US20150112515A1
Автор: Gary S. Conway
Принадлежит: BELL HELICOPTER TEXTRON INC

According to one embodiment, a rotor brake control system includes a temperature sensor operable to measure an operating temperature of a rotor brake and a rotor brake control unit operable to instruct a caliper to adjust, based on the measured operating temperature, an amount of friction generated between a brake pad and the rotor brake.

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Номер записи: 90
23-04-2015 дата публикации

Brake control apparatus for vehicle

Номер: US20150112565A1
Автор: Hiroyuki Kodama, Naotoshi SATAKE, Yoshiyuki Yasui
Принадлежит: Advics Co Ltd

Electric motor control is based on a target energization amount calculated using a braking operation member operation amount. A state quantity is acquired as an actual value, indicating an actual actuation state of a movable member located in a power transmission path from the electric motor to a friction member. Using the operation amount, it is determined whether or not inertia compensation control is necessary, which compensates for the inertia influence of a brake actuator during electric motor deceleration. “A target value corresponding to the actual value” is determined as a reference value, which is calculated based on the operation amount at a time when inertia compensation control is necessary. Based on the actual and reference values, “an inertia compensation energization amount for decreasing the target energization amount to compensate for the influence of inertia” is calculated, and the target energization amount is adjusted using the inertia compensation energization amount.

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Номер записи: 91
19-04-2018 дата публикации

RESIDUAL BRAKING TORQUE INDICATION DEVICES, SYSTEMS, AND METHODS

Номер: US20180106319A1
Автор: Solari Mattia, Terranova Marco
Принадлежит:

Various residual braking torque indication devices, systems, and methods are described. The devices, systems, and methods can include a sensorized brake pad. An output signal of the sensorized brake pad can be processed to provide an indication of a residual braking torque. The residual braking torque indicator can be calibrated to reference data to provide an actual measurement of the residual braking torque. 1. A device for detecting the residual braking torque in a vehicle equipped with disk brakes , the device comprising:at least one piezoceramic sensor integrated into the friction material support of a brake assembly, andan electrical circuit connecting the piezoceramic sensor to at least one electronic control unit, the electronic control unit configured to receive signals detected by said piezoceramic sensor directly from said brake assembly friction material,wherein the electronic control unit comprises at least one residual braking torque indicator, the residual braking torque indicator configured to interact via at least one communication interface, to at least one on board computer of the vehicle.2. The device for detecting the residual braking torque in a vehicle equipped with disk brakes according to claim 1 , wherein the residual braking torque indicator enables measurement of residual braking torques in the range of 0.5 Nm to 30 Nm.3. The device for detecting the residual braking torque in a vehicle equipped with disk brakes according to claim 1 , wherein said residual braking torque measurements are from 0.1 Nm to 30 Nm.4. The device for detecting the residual braking torque in a vehicle equipped with disk brakes according to claim 1 , wherein said residual braking torque indicator indirectly measures the actual braking torque and allows for the constant updating in substantially real time of said measurements.5. The device for detecting the residual braking torque in a vehicle equipped with disk brakes according to claim 1 , wherein said residual ...

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Номер записи: 92
19-04-2018 дата публикации

Brake pad wear sensor

Номер: US20180106320A1
Автор: David Leonard Juzswik, Xing Ping Lin
Принадлежит: TRW AUTOMOTIVE US LLC

A brake pad wear measuring system for measuring brake pad wear for a vehicle disc brake system includes a first coil excitable to create a first magnetic field, and a first target associated with the first coil. The first coil and the first target are configured for movement relative to each other in response to application of the disc brake system. The relative movement causes the first target to move within the first magnetic field and affect the inductance of the first coil. The brake pad wear measuring system also includes a second coil excitable to create a second magnetic field, and a second target associated with the second coil. The second coil and the second target are configured for movement relative to each other in response to application of the disc brake system. The relative movement causes the second target to move within the second magnetic field and affect the inductance of the second coil. The first coil and the first target are configured so that the inductance of the first coil increases as brake pad wear increases. The second coil and the second target are configured so that the inductance of the second coil decreases as brake pad wear increases.

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Номер записи: 93
20-04-2017 дата публикации

BRAKE MONITORING SYSTEM

Номер: US20170106995A1
Автор: Burte Paul R., Rook Todd, Walsh Andrew
Принадлежит: GOODRICH CORPORATION

In accordance with various embodiments, disclosed is a brake monitoring system for monitoring the health status of the brakes of an aircraft, the aircraft comprising a plurality of brakes, the brake monitoring system comprising conducting a statistical comparison of a brake temperature against a temperature data centrality value based on the temperature values of the plurality of brakes. 1. A brake health monitoring system , comprising:a temperature sensor system comprising a plurality of temperature sensors in thermal communication with a plurality of brakes; anda processor configured to receive temperature measurements of each of the plurality of brakes from the plurality of temperature sensors, the temperature measurements defined as a temperature data set, the processor further configured to calculate a temperature data centrality value based on the temperature data set, the processor further configured to calculate a temperature deviation value for each of the plurality of brakes based on the relative temperatures measured for each of the plurality of brakes compared to the temperature data centrality value, wherein the processor assigns a health status for each of the plurality of brakes.2. The brake health monitoring system of claim 1 , wherein the processor assigns a health status for each of the plurality of brakes by analyzing the temperature deviation value for each of the plurality of brakes via a process control tool.3. The brake health monitoring system of claim 1 , wherein each of the plurality of brakes is operatively coupled to a wheel of a landing gear of an aircraft.4. The brake health monitoring system of claim 1 , wherein the temperature sensor system is configured to obtain multiple brake temperature data sets over multiple time instances.5. The brake health monitoring system of claim 4 , wherein the temperature sensor system is configured to obtain brake temperature data from a single flight.6. The brake health monitoring system of claim 5 , ...

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Номер записи: 94
02-04-2020 дата публикации

BRAKE COMPONENT PROGNOSIS

Номер: US20200102993A1
Автор: Antanaitis David B., Riefe Mark T.
Принадлежит:

An exemplary method for determining a remaining life expectancy of a brake component includes the steps of providing vehicle parameters that identify operating conditions of a vehicle, using the vehicle parameters to determine work done by a brake of the vehicle as brake work, using the brake work to determine brake rotor temperature, using the brake rotor temperature to determine a fatigue damage of the brake component, accumulating the fatigue damage to determine a cumulative fatigue damage of the brake component, and comparing the cumulative fatigue damage to a damage limit to provide an estimation of the remaining life expectancy of the brake component. 1. A method for determining a remaining life expectancy of a brake component , the method comprising:providing vehicle parameters that identify operating conditions of a vehicle;using the vehicle parameters to determine work done by a brake of the vehicle as brake work;using the brake work to determine brake rotor temperature;using the brake rotor temperature to determine a fatigue damage of the brake component;accumulating the fatigue damage to determine a cumulative fatigue damage of the brake component; andcomparing the cumulative fatigue damage to a damage limit to provide an estimation of the remaining life expectancy of the brake component.2. The method of claim 1 , wherein the brake component is a vehicle brake rotor and the fatigue damage is a thermal and mechanical energy-based damage calculation claim 1 , and the method further comprising:using the brake rotor temperature to determine an energy-based brake rotor wear;accumulating the brake rotor wear to provide an estimation of the thickness of the vehicle brake rotor;computing an oxidative brake rotor wear based on a time of exposure of the vehicle brake rotor;computing the brake rotor wear by summing the oxidative brake rotor wear and the energy-based brake rotor wear; andusing the brake rotor wear to determine the cumulative fatigue damage of the ...

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Номер записи: 95
05-05-2016 дата публикации

Full Load Brake Torque Inspection Method

Номер: US20160123824A1
Автор: Wan Ji An, Xu Kaisheng David
Принадлежит:

A brake torque inspection method to a device having a drive machine and a driven component operatively connected to the drive machine is disclosed. The method comprises applying a brake to the driven component, and using a torque wrench at a shaft of the drive machine to determine the brake torque. 1. A brake torque inspection method to a device having a drive machine and a driven component operatively connected to the drive machine , comprising:applying a brake to the driven component; andusing a torque wrench at a shaft of the drive machine to determine the brake torque.2. The method of claim 1 , wherein the drive machine has a motor shaft and an output shaft.3. The method of claim 2 , further comprising using the torque wrench at the motor shaft to determine the torque at the drive machine.4. The method of claim 2 , further comprising using the torque wrench at the output shaft to determine the torque at the drive machine.5. The method of claim 1 , further comprising multiplying the drive machine torque by a transmission ratio to determine the brake torque.6. The method of claim 1 , further comprising comparing the determined brake torque to a minimum amount of brake torque required by local safety codes for a passenger conveyor.7. The method of claim 1 , wherein the brake and the drive machine are components of a passenger conveyor.8. The method of claim 1 , further comprising transferring power between the drive machine and driven component through at least one transmission element claim 1 , the at least one transmission element comprising one of a gearbox claim 1 , machine drive sprocket claim 1 , main drive chain claim 1 , and main drive sprocket.9. The method of claim 1 , further comprising applying a predetermined torque value by the torque wrench to the shaft to determine if the predetermined torque will cause the shaft to turn claim 1 , wherein the predetermined torque value is calculated from multiplying a minimum amount of brake torque required by local ...

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Номер записи: 96
07-05-2015 дата публикации

Electromechanical actuator strain gauge temperature compensation device

Номер: US20150127233A1
Автор: David Drennen, Steven Keller
Принадлежит: Goodrich Corp

The EMA may comprise an EMA housing, a strain gauge coupled to the EMA housing, the strain gauge comprising a Wheatstone bridge, the Wheatstone bridge comprising a first group of resistors coupled in parallel with a second group of resistors, a controller coupled to the strain gauge, a variable resistance resistor coupled to the Wheatstone bridge, the variable resistance resistor configured to derive a temperature of the EMA housing based upon a temperature of the variable resistance resistor and configured to provide feedback to the controller, the controller adjusting a force applied by the EMA based upon the temperature of the EMA housing.

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Номер записи: 97
25-04-2019 дата публикации

ABS TONE RING MOUNTING STRUCTURE

Номер: US20190120312A1
Автор: Dharaiya Dhawal P., White Jay D.
Принадлежит:

Tone ring mounting structure for an antilock braking system comprising a wheel end assembly rotatable component having at least a first end surface and a first engagement mechanism extending radially and non-cantilevered from the rotatable component, and a tone ring having a second end surface and a second engagement mechanism extending radially from the tone ring. Connecting engagement of the first engagement mechanism of the wheel end assembly rotatable component and the second engagement mechanism of the tone ring affects movement of the second end surface in a direction toward the first end surface. The first engagement mechanism and the second engagement mechanism can be engageable threads. The first engagement mechanism can include lugs formed on the wheel end assembly rotatable component and the second engagement mechanism threads or wedge ramps engageable with the lugs. A corrosion resistant coating can be applied to components of the tone ring mounting structure. 1. Tone ring mounting structure for an antilock braking system , the tone ring mounting structure comprising:a wheel end assembly rotatable component having at least one first end surface and a first engagement mechanism, the first engagement mechanism extending radially and non-cantilevered from the wheel end assembly rotatable component; anda tone ring formed with at least one second end surface and a second engagement mechanism, the second engagement mechanism extending radially from the tone ring, wherein connecting engagement of the first engagement mechanism of the wheel end assembly rotatable component and the second engagement mechanism of the tone ring affects movement of the at least one second end surface in a direction toward the at least one first end surface.2. The tone ring mounting structure of claim 1 , wherein the connecting engagement further includes threaded engagement of the first engagement mechanism of the wheel end assembly rotatable component and the second engagement ...

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Номер записи: 98
16-04-2020 дата публикации

CARBON BRAKE WEAR STATUS MONITORING SYSTEM

Номер: US20200116224A1
Автор: Encinas Ramon Blanco, Li Qixiang, Mylaraswamy Dinkar, Wee Fong
Принадлежит: HONEYWELL INTERNATIONAL INC.

Systems and methods for measuring the wear of carbon brakes of an aircraft are disclosed herein. The systems and methods include a 3-axis acceleration sensor module mounted on a brake assembly, the 3-axis acceleration sensor module configured to detect acceleration events of the brake assembly in three different component directions. The systems and methods further include a memory module operably connected to the 3-axis acceleration sensor module, the memory module configured to store acceleration events detected by the 3-axis acceleration sensor module and to store a pre-determined threshold for determining carbon brake wear based upon a number of acceleration events detected in a single component direction of the three different component directions. The systems and methods also include a processor module operably connected the processor module configured to compare the stored acceleration events detected in a single direction of the three different directions to the stored pre-determined threshold. 1. A system for measuring the wear of carbon brakes of an aircraft , comprising:a 3-axis acceleration sensor module mounted on a brake assembly, the 3-axis acceleration sensor module configured to detect acceleration events of the brake assembly in three different component directions;a memory module operably connected to the 3-axis acceleration sensor module, the memory module configured to store acceleration events detected by the 3-axis acceleration sensor module and to store a pre-determined threshold for determining carbon brake wear based upon a number of acceleration events detected in a single component direction of the three different component directions; anda processor module operably connected to the memory module, the processor module configured to compare the stored acceleration events detected in a single direction of the three different directions to the stored pre-determined threshold.2. The system of claim 1 , wherein the processor module is ...

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Номер записи: 99
10-05-2018 дата публикации

Prediction of Remaining Lifetime for Compressed Air Supply System Component

Номер: US20180126972A1
Автор: Balogh Levente, Bozsik Richard, DOEME Csongor
Принадлежит:

A device is provided for predicting the remaining lifetime of a component in a compressed air supply system for a vehicle. This device includes a memory unit for a value related to the degradation of the component, at least one first input for a usage quantity which is a measure for the operating time and/or number of operating cycles of the component and/or for the amount of compressed air delivered by the compressed air supply system, at least one second input for at least one state variable which is a measure for at least one vehicle and/or air supply operation condition or environmental condition. It also includes an evaluation unit that is configured to combine the usage quantity and the state variable into a lifetime decrement value that is a measure for the degradation of the component caused by the usage according to the usage quantity, and update the value in the memory unit according to this lifetime decrement value. 114.-. (canceled)15. A device for predicting a remaining lifetime of a component in a compressed air supply system for a vehicle , comprising:a memory unit for a value related to degradation of the component;at least one first input for a usage quantity which is a measure for an operating time and/or a number of operating cycles of the component, and/or for an amount of compressed air delivered by the compressed air supply system;at least one second input for at least one state variable which is a measure for at least one vehicle and/or air supply operation condition or environmental condition; andan evaluation unit that is configured to combine the usage quantity and the state variable into a lifetime decrement value that is a measure for the degradation of the component caused by the usage according to the usage quantity, and update the value in the memory unit according to this lifetime decrement value.16. The device according to claim 15 , whereinthe evaluation unit is further configured to determine the lifetime decrement value by ...

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Номер записи: 100