Rotary Motor Patents (Class 188/162)
  • Patent number: 11213408
    Abstract: An asymmetric linear actuator is provided which integrates a hydraulic dissipater and an electric motor and power screw which generates small forces. The actuator is configured so that an electric motor drives a power screw which drives a rod through a cylinder to provide linear actuation. The cylinder is fluid-filled and incorporates a piston that separates the cylinder into a first and second fluid chamber which are filled with a first and second volume of working fluid. Movement of the piston and rod assembly results in fluid movement between the first and second volumes of working fluid and through the fluidic restriction. The fluidic restriction can be proportionally controllable via an electric motor which enables controllable power dissipation via control of the fluidic restriction motor and controllable power generation via control of the power screw motor.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: January 4, 2022
    Assignee: Vanderbilt University
    Inventors: Michael Goldfarb, Harrison Bartlett, Brian Lawson
  • Patent number: 11192529
    Abstract: A parking brake control device is a control device for a vehicle used in a vehicle on which a shift by wire system and an electric parking brake system are mounted. A function of automatically operating an electric parking brake without an operation of the driver of the vehicle is referred to as an EPB automatic operation function, and a request by the driver for disabling the EPB automatic operation function is referred to as a disabling request. The parking brake control device includes a disabling determination part configured to determine a presence or absence of the disabling request, a vehicle stop determination part configured to determine whether the vehicle is stopped, a slope determination part configured to determine whether the vehicle is located on a slope, and an EPB automatic operation part. The EPB automatic operation part operates the electric parking brake when the vehicle is stopped on the slope even if the disabling request is made.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: December 7, 2021
    Assignee: DENSO CORPORATION
    Inventor: Shigeru Kamio
  • Patent number: 11187292
    Abstract: Disclosed herein are a brake actuator and an electromechanical brake using the brake actuator and a control method thereof. The brake actuator provided in a disc brake to press or release a piston and controlled by an electrical signal includes a first actuator including a first power transmission unit configured to transmit power to the piston side; and a second actuator including a second power transmission unit configured to transmit power to the piston side; wherein the first and second power transmission units are arranged coaxially.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: November 30, 2021
    Assignee: Mando Corporation
    Inventor: Joon-Kyu Song
  • Patent number: 11190081
    Abstract: The electric linear motion actuator includes an electric motor, a linear motion mechanism configured to convert rotary motion of the electric motor to linear motion of a linear motion part via a rotation input-output shaft, and a housing holding the linear motion mechanism. The electric motor includes a stator and a rotor which are arranged such that the directions of magnetic poles that generate interlinkage flux contributing to a motor torque are parallel with a rotation axis of the electric motor. The stator is arranged so as to be coupled with an axial end surface of the housing. The rotor is arranged so as to have a space, in the axial direction, from the torque generating surface of the stator, and the rotor is fixed to the rotation input-output shaft of the linear motion mechanism.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: November 30, 2021
    Assignee: NTN CORPORATION
    Inventor: Yui Masuda
  • Patent number: 11098789
    Abstract: A linear actuator includes a sliding rod, a motor and a buffer assembly. The motor connects the sliding rod to drive the sliding rod. The buffer assembly is disposed at an end of the sliding rod and includes an elastic element and an outer sleeve. The elastic element is received in the outer sleeve. The sliding rod connects the outer sleeve. The outer sleeve is movable along an axial direction of the sliding rod. The elastic element separately pushes an inner wall of the outer sleeve and the sliding rod. The elastic element is pre-compressed along the axial direction of the sliding rod. The buffer assembly can absorb vibration and impact caused by the motor driving the sliding rod.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: August 24, 2021
    Assignee: TIMOTION TECHNOLOGY CO., LTD.
    Inventor: Chou-Hsin Wu
  • Patent number: 11101716
    Abstract: Provided is an electric actuator (1), including: a motor part (A); and a motion conversion mechanism part (B). The motion conversion mechanism part (B) includes: a ball screw shaft (33); and a ball screw nut (32), which is rotatably fitted to an outer periphery of the ball screw shaft (33), and is provided so as to be capable of transmitting torque with a rotor (24) of the motor part (A) rotatably supported through intermediation of a rolling bearing (27, 30). The ball screw shaft (33) advances toward one side in the axial direction or retreats toward another side in the axial direction in accordance with a rotation direction of the ball screw nut (32). In the electric actuator (1), a needle roller bearing (47) serving as a thrust bearing is arranged adjacent to the ball screw nut (32) on the another side in the axial direction.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: August 24, 2021
    Assignee: NTN CORPORATION
    Inventors: Takushi Matsuto, Yoshinori Ikeda, Yuuki Naitou
  • Patent number: 11059468
    Abstract: This braking control device comprises a differential mechanism, a first electric motor that generates assisting force in a braking operation member, a second electric motor that adjusts output rod shift of the differential mechanism, and a controller that controls the first and second electric motors. In the controller, the first electric motor is controlled on the basis of an assistance map in which the assisting force is calculated, and the second electric motor is controlled on the basis of a displacement map in which the output rod shift is calculated. When the displacement map is changed, the assistance map is corrected as well.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: July 13, 2021
    Assignee: ADVICS CO., LTD.
    Inventors: Marshall Bull, Shun Tsukamoto
  • Patent number: 10925754
    Abstract: An asymmetric linear actuator is provided which integrates a hydraulic dissipater and an electric motor and power screw which generates small forces. The actuator is configured so that an electric motor drives a power screw which drives a rod through a cylinder to provide linear actuation. The cylinder is fluid-filled and incorporates a piston that separates the cylinder into a first and second fluid chamber which are filled with a first and second volume of working fluid. Movement of the piston and rod assembly results in fluid movement between the first and second volumes of working fluid and through the fluidic restriction. The fluidic restriction can be proportionally controllable via an electric motor which enables controllable power dissipation via control of the fluidic restriction motor and controllable power generation via control of the power screw motor.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: February 23, 2021
    Assignee: Vanderbilt University
    Inventors: Michael Goldfarb, Harrison Bartlett, Brian Lawson
  • Patent number: 10926745
    Abstract: A system and associated method for achieving both force and position control of motor-driven electrical brake actuators for a brake disc stack that has, and seeks to maintain, a characteristic built-in clearance among the discs. The system employs both force feedback and motor turns position feedback associated with the actuator during a braking operation in order to obtain a motor turns position that achieves the characteristic built-in clearance following braking action or the like.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: February 23, 2021
    Assignee: Meggitt Aircraft Braking Systems Corporation
    Inventors: Arnold A. Beck, Scott G. Knight
  • Patent number: 10829109
    Abstract: Systems and methods for controlling a park pawl system of a hybrid vehicle having a hybrid powertrain comprising an engine and a hybrid transmission comprising at least one electric propulsion motor, the systems and methods each utilizing a control system configured to detect, using a main control system portion, a desired park state based on at least an input via a transmission gear selector and an input via a brake pedal and detect, using a distinct monitoring system portion, whether the desired park state is valid based on at least the transmission gear selector and brake pedal inputs. When the desired park state is valid, the control system commands the park pawl system to the desired park state. When the desired park state is invalid, however, the control system commands an electric park brake of the vehicle to prevent movement at a driveline of the vehicle.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: November 10, 2020
    Assignee: FCA US LLC
    Inventors: Sathya Manivasagam, Behrouz Ashrafi, Feisel F Weslati
  • Patent number: 10800391
    Abstract: An actuation device for an electromechanically actuatable vehicle brake, comprising an electric motor, at least one multistage transmission that has at least one intermediate transmission unit and at least one output transmission unit. The rotational axis of the output transmission unit extends through the at least one output shaft section and parallel to the rotational axis of the intermediate transmission unit and the rotational axis of the electric motor. One of the rotational axes of the electric motor, the intermediate transmission unit and the output transmission unit lies outside of a plane defined by two respective rotational axes of the rotational axes of the electric motor, the intermediate transmission unit and the output transmission unit.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: October 13, 2020
    Assignee: ZF Active Safety GmbH
    Inventor: Gregor Poertzgen
  • Patent number: 10697510
    Abstract: A braking device for a motor vehicle includes at least one brake, at least one brake pad, a brake disk, and an elastic element. The elastic element is configured to place the brake pad against the brake disk such that the brake pad and the brake disk generate either no braking force or a small braking force acting on the motor vehicle. The at least one brake is operatively interrelated with the elastic element.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: June 30, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Frank Baehrle-Miller, Simon Hauber
  • Patent number: 10683917
    Abstract: A linear actuator includes a sliding rod, a motor and a buffer assembly. The motor connects the sliding rod to drive the sliding rod. The buffer assembly is disposed at an end of the sliding rod and includes an elastic element and an outer sleeve. The elastic element is received in the outer sleeve. The sliding rod connects the outer sleeve. The outer sleeve is movable along an axial direction of the sliding rod. The elastic element separately pushes an inner wall of the outer sleeve and the sliding rod. The elastic element is pre-compressed along the axial direction of the sliding rod. The buffer assembly can absorb vibration and impact caused by the motor driving the sliding rod.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: June 16, 2020
    Assignee: TIMOTION TECHNOLOGY CO., LTD.
    Inventor: Chou-Hsin Wu
  • Patent number: 10670096
    Abstract: A disk brake includes a disk overlapped by a caliper, at least one pad carried by the caliper, two different actuators, each one including a pinion and a mobile piston for pressing the pad against the disk by rotation of the pinions, a rotating shaft including two endless screws having opposite winding directions, the shaft being mobile in translation in the longitudinal direction thereof, and an electric motor for driving the rotating shaft. The rotating shaft extends between the two pinions with the two endless screws thereof each engaged in a pinion.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: June 2, 2020
    Assignee: FOUNDATION BRAKES FRANCE
    Inventor: Didier Esnee
  • Patent number: 10436298
    Abstract: Provided a screw feeding device, in which a buffer mechanism is incorporated between a rod member and a nut member. The screw feeding device includes: a screw shaft; the nut member, which has a flange portion, the rod member, which has a mounting portion facing the flange portion and a hollow portion; and a buffer mechanism, which connects the flange portion and the mounting portion, in which the buffer mechanism includes: a plurality of shafts, a pair of separators, through which the plurality of shafts pass, and which is movable along the plurality of shafts; and an elastic member, provided between the pair of separators, in which the plurality of shafts include: a shaft, fixed to the flange portion; and a shaft fixed to the mounting portion.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: October 8, 2019
    Assignees: HIRATA CORPORATION, THK CO., LTD.
    Inventors: Bungo Matsumoto, Yuji Kubota, Tomoya Uchikoshi
  • Patent number: 10353422
    Abstract: A bidirectional pedal assembly for a vehicle. The assembly includes a support mounted on the vehicle and a pedal pivotally coupled to the support about a pivot shaft. The pedal pivots between a neutral position and first and second operational positions. A biasing member is mounted within the support and continuously biases the pedal to the neutral position. A control mechanism is coupled to the support and the pedal to retard pivotal movement of the pedal as the pedal returns from the operational positions to the neutral position. A handle can be coupled to the pedal and pivot concurrently with the pedal. A frictional mechanism can be disposed within the support and provide increasing resistance as the pedal moves increasingly away from the neutral position. The biasing mechanism, frictional mechanism, and/or control mechanism are configured to force the pedal to the neutral position with no overshoot within a predetermined period.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: July 16, 2019
    Assignee: KONGSBERG POWER PRODUCTS SYSTEMS I, INC.
    Inventors: Ronda Poirier, Anthony Bugamelli, Aaron Hengst, Jesse Henrikson
  • Patent number: 10344840
    Abstract: A screw actuator comprises a screw shaft for threaded engagement with an actuator output device such that rotation of the screw shaft causes linear movement of the actuator output device; and a motor for driving rotation of the screw shaft. A no-back device is included for restricting movement of the screw shaft in response to feedback torque applied due to external forces on the actuator output device.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: July 9, 2019
    Assignee: RATIER-FIGEAC SAS
    Inventor: Frédéric Vermande
  • Patent number: 10316915
    Abstract: A brake gear motor (1) comprising an electric motor (2) having a motor shaft (3); a reducer (4) operatively connected, with its input side (9), to said motor shaft (3), to receive a movement and a driving torque and transmit them with its side output (10) to the brake; a housing (5) having at least one chamber (6, 28, 29); said at least one chamber (6, 28, 29) being at least partly delimited by at least one chamber wall or mantle (7) wherein a support plate (8) is provided in said housing; said motor (2) is accommodated, at least in part, in said at least one chamber (6, 28, 29); said motor shaft (3) is supported freely rotatable in said support plate (8); said reducer (4) is accommodated in said at least one chamber (6, 28, 29); said reducer (4) is supported freely rotatable in said support plate (8); said housing (5) comprises a connection rim to the brake (11) suitable to couple said housing (5) to a brake calliper (12) so as to interface with said output side (10) of the brake and allow the movement of at
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: June 11, 2019
    Assignee: Freni Brembo S.P.A.
    Inventor: Paolo Sala
  • Patent number: 10259498
    Abstract: A robotic vehicle may include a first chassis platform including a first wheel assembly, a second chassis platform including a second wheel assembly where the first and second chassis platforms are spaced apart from each other, and a combination linkage operably coupling the first and second chassis platforms. The combination linkage may be operably coupled to the first chassis platform via a first link and is operably coupled to the second chassis platform via a second link. The combination linkage employs at least two different coupling features to operably couple the first and second chassis platforms. The at least two different coupling features include at least any two among a fixed attachment, an attachment that enables rotation about a turning axis, and an attachment that enables pivoting about a pivot axis that is substantially perpendicular to the turning axis.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: April 16, 2019
    Assignee: HUSQVARNA AB
    Inventors: Patrik Jägenstedt, Fredrik Kallström, Magnus Bergenholm, Mats Svensson, Magnus Öhrlund, Mattias Kamfors
  • Patent number: 10232716
    Abstract: A power supply device that converts inputted direct-current power to direct-current power with a predetermined voltage to supply the power to the outside includes a voltage conversion circuit that converts the voltage of the inputted direct-current power, a voltage measurement circuit that measures a voltage value indicating a voltage potential difference between a ground voltage potential in the power supply device and a ground point provided outside the power supply device and connected to the ground voltage potential via a ground strap cable, a current measurement circuit that measures a current value of a load current flowing when de direct-current power is supplied from the power supply device, and an arithmetic circuit that calculates a resistance value corresponding ground connection of the power supply device, based on the voltage value measured by the voltage measurement circuit and the current value measured by the current measurement circuit.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: March 19, 2019
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Katsuhiro Higuchi, Toshio Hiraishi, Kenji Kubo
  • Patent number: 10197148
    Abstract: Since a second reinforcing rib (24e) protruding from a motor accommodating portion (24) to outside is provided to a portion formed with a weld line (WL) formed by the merger of molten resin (MR), the material thickness of the portion formed with the weld line (WL) can be increased. Therefore, the strength of the portion formed with the weld line (WL) is improved, and the strength of a case (21) as a whole can be improved. The case (21) sufficiently resistible to outer shocks can be achieved, and can be sufficiently used even in adverse environments such as a place near an undercarriage of a vehicle, and high reliability can be obtained. Since a small flange portion is provided on a caliper fixing portion side which supports an output shaft where large running torque is loaded, the weld line can be kept away from the caliper fixing portion, with this small flange portion taken as an inlet portion for the molten resin.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: February 5, 2019
    Assignees: Mitsuba Corporation, Akebono Brake Industry Co., Ltd.
    Inventor: Satoshi Aida
  • Patent number: 10173682
    Abstract: A P-range engagement method of the vehicle and a device thereof are disclosed. The P-range engagement method is applied to the vehicle equipped with an electronic shift lever, and the method includes performing the vehicle stopping process based on detection of stopping of a traveling vehicle through a control device, holding wheel disks of the vehicle through a controller that is controlled by the control device, comparing the vehicle stopped time period, which is measured by the control device, with a predetermined reference value stored in the control device to determine whether the vehicle stopped time period exceeds the predetermined reference value, and upon determining that the vehicle stopped time period exceeds the predetermined reference value, determining whether conditions for performing P-range engagement are satisfied, and upon determining that the conditions for performing the P-range engagement are satisfied, completing the P-range engagement.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: January 8, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Han Gil Park, Chang Hyun Lee
  • Patent number: 10137876
    Abstract: A braking control device controllable in cooperation with a regenerative brake includes a case member fixed to the master cylinder, a first electric motor fixed to the case member, a second electric motor fixed to the case member independently of the first electric motor, a linearly movable input rod mechanically connected to the braking operation member, an output rod which presses pistons in the master cylinder and which is linearly movable in parallel with a central axis of the input rod, a differential mechanism which receives output from the first and second electric motors, is allowed to relatively move between the input rod and the output rod, and is built in the case member, and a controller which controls the output from the first electric motor and the output from the second electric motor to independently control force acting on the input rod and displacement of the output rod.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: November 27, 2018
    Assignee: ADVICS CO., LTD.
    Inventors: Marshall Bull, Shun Tsukamoto
  • Patent number: 10100892
    Abstract: An electric brake caliper, including: a caliper main body; brake pads; and an actuator including a piston, an electric motor of a rotary type, and a motion converting mechanism, wherein the motion converting mechanism includes a hollow output sleeve configured to be linearly moved to move the piston disposed at one end of the output sleeve nearer to the one of the brake pads and an input shaft disposed in the output sleeve and configured to be rotated by the electric motor, the motion converting mechanism being configured to convert rotation of the input shaft into a linear movement of the output sleeve, wherein the electric motor includes a hollow driving rotary shaft, and wherein the motion converting mechanism is disposed in the driving rotary shaft, and the input shaft includes a flange whose outer circumferential end is in mesh with an inner circumferential portion of the driving rotary shaft.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: October 16, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoki Yabusaki, Ryutaro Misumi, Nao Ikuma
  • Patent number: 10094368
    Abstract: A numerical controlled drive tower pumping unit includes a main tower frame, a power system, a drive system, a control system, a wire rope wheel, a balance weight box, and a suction rod. The power system, drive system, and control system work to alternately raise and lower the suction rod. The pumping unit includes a safety braking system configured to permit free rotation of the drive system in a normal operating state and prevent rotation of the drive system in an abnormal operation state. The pumping unit includes a tower moving mechanism configured to roll the main tower frame along a foundation frame from a normal operation position with the main tower frame proximate to a wellhead borehole to a workover position with the main tower frame distant from the wellhead borehole. The moving mechanism includes retractable roller assemblies to facilitate movement of the main tower frame.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: October 9, 2018
    Assignee: International Business Alliance Management, Inc.
    Inventors: Hongwei Mao, Dah Kong Chen
  • Patent number: 10077034
    Abstract: A system and method for braking a flat-towed vehicle based upon a braking pressure of a braking fluid in a braking circuit in the towing vehicle, the method includes measuring a piezoresistor voltage drop across a piezoresistor positioned within the braking circuit such that the piezoresistor voltage drop changes in response to the braking pressure within the braking circuit. Based upon the measured piezoresistor voltage drop, a motor frame duration is retrieved. A clutch engages the motor output shaft to initiate a clutch frame. Upon expiration of a programmed clutch delay, a motor frame initiates by supplying power to a motor. Upon expiration of the motor frame duration, power to the motor is interrupted. The clutch continues to be engaged for the duration of the clutch frame. The clutch releases allowing a capstan attached to the clutch to spin freely relative to the motor output shaft.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: September 18, 2018
    Assignee: BRAZEL'S PERFORMANCE PRODUCTS
    Inventor: Alan Sanders
  • Patent number: 10030787
    Abstract: An actuator for actuating a valve mechanism, such as a gate valve mechanism, a blow-out preventer or the like for maritime oil or gas production. The actuator includes at least one motor housing. The motor housing includes an electric motor, a vehicle adapter at a first housing end of the motor housing to dock with a remote controlled vehicle, and a connection adapter at a second housing end to dock with a spring assembly housing disposed on the valve mechanism. The spring assembly housing includes a spring assembly that pressurizes a spring piston displaceably mounted in the spring assembly housing.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: July 24, 2018
    Assignee: ONESUBSEA IP UK LIMITED
    Inventor: Norbert Lenz
  • Patent number: 10011252
    Abstract: 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.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: July 3, 2018
    Assignee: MANDO CORPORATION
    Inventor: Wook-Hyeon Kim
  • Patent number: 9989113
    Abstract: Disclosed herein is an electronic parking brake including: a carrier fixed to a body of a vehicle; a caliper housing that is slidably installed in the carrier; a motor that is disposed at an outside of the caliper housing and generates a rotational force; a decelerator that amplifies the rotational force of the motor; and a conversion unit that converts a rotational force transmitted from the decelerator into a rectilinear motion, wherein the decelerator includes a belt planetary gear part, and the belt planetary gear part includes: a solar gear rotated by receiving the rotational force of the motor; a belt gear engaged with the solar gear; a transmission plate that is connected to the belt gear and has belt support parts for supporting the belt gear so that the belt gear is rotatable; and a ring gear that is engaged with an outer surface of the belt gear and fixed to the belt gear so as to rotate the transmission plate.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: June 5, 2018
    Assignee: Mando Corporation
    Inventor: Jong-Gu Son
  • Patent number: 9982662
    Abstract: A pressure generator for a hydraulic vehicle brake system includes a piston-cylinder unit, a piston, a ball screw drive configured to move the piston, an electric hollow-shaft motor that surrounds and is configured to drive the ball screw drive, and a planetary gear set configured to transmit a rotational movement of the hollow-shaft motor to the ball screw drive. The generator also includes a flange part, a sleeve, and an axial needle-roller bearing. The flange part has a tubular collar configured to axially guide the piston in a movable fashion therein. The sleeve has a flange configured as a counterbearing which is attached to an interior of the tubular collar, and is further configured to support the bearing. The bearing is configured to rotatably mount and axially support the ball screw drive.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: May 29, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Andreas Weh, Marc Micke, Roman Koch, Matthias Mayr
  • Patent number: 9970498
    Abstract: To reduce the attainable actuation times of an electrically actuated friction brake and simultaneously keep the friction brake inexpensive, an electrically actuated friction brake with a brake pad (3) actuated by an actuation device (10) is proposed, wherein for braking the actuation device (10) is driven by a spring and is held open by an electrical actuator (12), so that the spring actuates the friction brake (1) in case of a power loss, wherein a first transmission element (5), that is connected to the brake pad (3), and a second transmission element (8) with an elevation curve (17) are provided and a coupling element (15) is provided on the first transmission element (5), wherein a follower element (14) is arranged on the coupling element (15) that follows the elevation curve (17) under the action of the spring for actuating the first transmission element (5).
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: May 15, 2018
    Assignee: VE VIENNA ENGINEERING FORSCHUNGS-UND ENTWICKLUNGS GMBH
    Inventor: Michael Putz
  • Patent number: 9902378
    Abstract: An object of the present invention is to obtain a brake system that can generate appropriate braking force without influence of temperature. A brake system includes: a piston that presses pressing members; a motor that moves the piston; a current detection unit that detects current flowing in the motor; a storage unit that stores a correspondence relation between idle running current and motor stopping current; a motor stopping current setting unit that sets the motor stopping current using the storage unit and the idle running current; and a control unit that stops to supply the current to the motor when the current flowing in the motor reaches the motor stopping current. The correspondence relation is set so that the rate of change of the motor stopping current relative to the idle running current becomes smaller when the idle running current is small than that when it is large.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: February 27, 2018
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Shinji Seto, Tatsuro Kobune, Takayasu Sakashita
  • Patent number: 9868423
    Abstract: A pressure generating apparatus for a braking system of a motor vehicle, a flange embodied on a second housing component adjacent to a first housing component, which flange is congruent with a flange-shaped portion of the first housing component, is mounted on the flange-shaped portion of the first housing component, and the second housing component completely surrounds a transmission gear set of the first housing component. Also described is a hydraulic assemblage for interacting with the pressure generating apparatus, to a braking system for a motor vehicle, and to a method for installing a braking system for a motor vehicle.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: January 16, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Andreas Weh, Juergen Tandler, Matthias Mayr
  • Patent number: 9850971
    Abstract: A disk brake piston having a spindle nut, and a load bearing column within a piston body. The load bearing column includes a footing configured to push against a brake pad and a core extending from the metal footing and slidably located within the piston body, wherein the spindle nut is configured to contact and push the metal core which pushes the metal footing which pushes on the brake pad.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: December 26, 2017
    Assignee: MANDO CORPORATION
    Inventors: Antonio Eduardo Demorais, Daniel Alan Smith
  • Patent number: 9841074
    Abstract: An actuator for a motor vehicle functional unit includes a force transmission unit transmitting an actuating force to an actuating member and being displaced by a measuring travel in a force transmission direction. A force measurement device detects an actual value of the actuating force and includes a spring acting in the force transmission direction, having resilient action counter to which the force transmission unit is displaced and being tensioned by the actuating force over a resilient excursion, a micro switch having smaller switching travel than the measuring travel and being actuated upon displacement of the force transmission unit if the actuating force reaches the actual value, and a stop element for actuating the switch. The switch or element are coupled to or fixed relative to the force transmission unit and the switch and/or element are resiliently supported to compensate for a difference between the switching and measuring travels.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: December 12, 2017
    Assignee: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Wuerzburg
    Inventor: Stephan Roos
  • Patent number: 9834189
    Abstract: Disclosed are electro-hydraulic brake system and control method. The system may include a braking input unit to provide a braking input according to an operation of a driver, a control unit to control generation of braking oil pressure according to the braking input of the braking input unit, a pressure generating unit to generate the braking oil pressure, wheel clamping units to generate braking forces to corresponding wheels, and oil supply lines to transfer the braking oil pressure to corresponding wheel clamping units. Each oil supply line is fluidly connected to the pressure generating unit. For each oil supply line, a split valve is installed in a connection portion of the pressure generating unit and the oil supply line. When the split valve is closed, the split valve blocks the braking oil pressure supplied from the pressure generating unit to the oil supply line.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: December 5, 2017
    Assignee: Hyundai Motor Company
    Inventor: Young Suk Jung
  • Patent number: 9758136
    Abstract: A powered hand brake for locomotive brakes that latches a brake chain into a locked position after the brake cylinder has applied the locomotive brakes. A computer controlled brake system may be interconnected to the brake cylinder and the latch and programmed to set the latch into the latched position when the brake cylinder has moved the locomotive brake into the applied position. An actuator is coupled to the brake chain to take up slack in the brake chain as the brake chain moves between the first and second positions. The actuator can comprise a motor or a tensioning cylinder that takes up slack in the brake chain after the brakes have been applied. Alternatively, the actuator may comprise a linkage connecting the brake chain to the locomotive brake so that the slack in the brake chain is taken up as the brakes are applied.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: September 12, 2017
    Assignee: New York Air Brake, LLC
    Inventors: Eric C Wright, Jason Connell
  • Patent number: 9643582
    Abstract: A master brake cylinder for a braking system of a vehicle has: a first filling volume, which is fillable with liquid, and whose first dimension is variable by adjusting at least one first piston wall; a second filling volume, which is fillable with liquid, and whose dimension is variable by adjusting at least one second piston wall; and a valve unit, the first filling volume being connected via the valve unit to the second filling volume in such a way that when the valve unit is switched into a first valve state, a joint first pressure chamber pressure prevails in the first filling volume and in the second filling volume.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: May 9, 2017
    Assignee: ROBERT BOSCH GMBH
    Inventors: Laurent Lhuillier, Antony Auguste, Bastien Cagnac, Takeshi Kaneko, Tim Albert, Matthias Kistner
  • Patent number: 9616864
    Abstract: A method for operating a wheel braking device having an electrically motorized actuator, wherein the actuator comprises an electric motor and an actuator element that can be moved by means of the electric motor. The actuator element is moved into a brake application position to actuate the wheel braking device and moved into a brake release position to release the wheel braking device. A movement travel of the actuator element is monitored while releasing the wheel braking device. The electric motor is switched from a control operation into a free-running operation during a release process and a free-running voltage is determined and that a minimum duration of movement of the actuator element for achieving the release position is calculated based upon the determined free-running voltage and is compared with a measured duration of movement of the actuator element to perform a plausibility check of the movement travel.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: April 11, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Frank Baehrle-Miller, Tobias Putzer
  • Patent number: 9574633
    Abstract: A method for monitoring a blocking member (12) of an electromechanical actuator (1). The monitoring method comprising the steps of: determining a value representative of a power supply current of a motor (11) during an off-load operating phase of the electromechanical actuator (1); comparing the value representative of the power supply current with a predetermined current threshold defined from nominal off-load operating characteristics of the electromechanical actuator (1); and detecting an accidental locking of the blocking member (12) when the value representative of the power supply current is above or equal to the predetermined current threshold. There also is an electromechanical actuator (1) comprising a blocking member (12) monitored by such a method.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: February 21, 2017
    Assignee: MESSIER-BUGATTI-DOWTY
    Inventors: Thomas Lepage, Philippe Chico, Francois Bonigen, Frederic Ragot
  • Patent number: 9429218
    Abstract: An actuator includes a drive screw (32), an external tube (34), a stretchable tube (35), and a buffer structure (50). The external tube (34) is sleeved around the drive screw (32) externally. The stretchable tube (35) is passed through and connected to the external tube (34), wherein the stretchable tube (35) has a nut (351) screwed to and driven by the drive screw (32). The buffer structure (50) comprises a positioning member (51) and a buffer unit (52). The positioning member (51) is fixed to the drive screw (32). The buffer unit (52) is sleeved around the drive screw (32) and between the nut (351) and the positioning member (51). Therefore, the impact force generated during the fast falling of the stretchable tube (35) can be absorbed.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: August 30, 2016
    Assignee: TIMOTION TECHNOLOGY CO., LTD.
    Inventor: Chou-Hsin Wu
  • Patent number: 9327552
    Abstract: A deflector is arranged to prevent differential oil, as lubrication oil, leaking from a gap between a rod of an axle and a shaft portion of a drive shaft and passing through a unit bearing, from attaching to an inner periphery of a brake drum. A guide groove unit is formed on an inward surface of a hub in a vehicle-width direction so as to guide the differential oil leaking into an internal space defined inside of the deflector to outside of the brake drum.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: May 3, 2016
    Assignee: HINO MOTORS, LTD.
    Inventor: Nobuharu Ono
  • Patent number: 9304859
    Abstract: An improved technique applies polar codes to storage data to improve the reliability of a storage system that uses high-performance, solid-state disks as part of a RAID group for storing frequently-accessed data. Along these lines, a high-performance storage system having n solid-state disks assigns k of those disks as payload disks. The storage system partitions the payload data into a data vector that has k data symbols. The storage system then applies, to the k payload symbols, a (n, k) polar code generator matrix derived from k rows of the ? log2 n?-times Kronecker product of the matrix ? ( 1 0 1 1 ) to produce n encoded symbols and stores each of the encoded payload symbols in a solid-state disk of the RAID group.
    Type: Grant
    Filed: December 29, 2012
    Date of Patent: April 5, 2016
    Assignee: EMC Corporation
    Inventors: Artem Alexandrovich Aliev, Vera Dmitriyevna Miloslavskaya, Peter Vladimirovich Trifonov
  • Patent number: 9205918
    Abstract: Systems and methods for reducing the speed of an aircraft are disclosed herein. An electronic brake control system may include a first braked wheel of a landing gear system, a brake pedal electronically coupled to the first braked wheel, and a first actuator. The first actuator may be configured to deliver a scalable clamping force on the first braked wheel via a brake stack. The first actuator may be configured to deliver an emergency maximum clamping force on the first braked wheel in response to the electronic brake control unit being in an emergency condition braking mode and a signal being received proportional to the brake pedal displacement. The emergency maximum clamping force results in the first actuator being driven in an overdriven state.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: December 8, 2015
    Assignee: GOODRICH CORPORATION
    Inventor: Eric Daniel Cahill
  • Patent number: 9145950
    Abstract: The invention relates to a subassembly for a brake actuator, which is provided for an electromechanically operated parking brake. The subassembly comprises a drive device and a gearing device, which comprises in succession a first, second and third gear stage for transmitting a torque generated by the drive device. The first gear stage is designed in the form of a gearwheel or belt drive, the second gear stage is designed in the form of a gearwheel mechanism, and the third gear stage is designed in the form of a planetary gear, wherein a planet carrier of the third gear stage receives a first gearing shaft for a sun gear of the planetary gear and an output-side gearwheel of the second gear stage that is coupled to rotate with the sun gear, and bearing elements for planet gears of the third gear stage. The invention further relates to an electromechanical brake actuator and to an electric parking brake, which include the sub-assembly.
    Type: Grant
    Filed: July 4, 2011
    Date of Patent: September 29, 2015
    Assignees: Lucas Automotive GmbH, Oechsler AG
    Inventors: Stefan Dettenberger, Gregor Poertzgen
  • Patent number: 9097300
    Abstract: A drum brake type electric parking brake apparatus includes an electric actuator unit configured to pull a cable so as to expand an expanding mechanism, a pulling pipe into which the cable is loosely inserted and supported so as to move in an axial direction, a feeding nut supported so as to move in only a rotation direction and provided with a female screw which is engaged with a male screw on the pulling pipe, and a connecting unit connecting a base end of the pulling pipe and a base end of the cable so as to pull the cable in a direction away from the expanding mechanism with the pulling pipe. The base end of the cable is projected from the base end of the pulling pipe which is an end opposite to the expanding mechanism.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: August 4, 2015
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Hironori Akada, Hiroyasu Ishikawa, Michio Suzuki
  • Publication number: 20150136543
    Abstract: The invention relates to an electromechanical actuator for a vehicle brake comprising a body (4) in which are arranged an electric motor (5) and a threaded plunger cooperating via a helical link with a nut (8) driven in rotation by the electric motor (5). According to the invention, the nut (8) is mounted to move axially in the body (4) of the actuator between a rest position towards which the nut (8) is pushed back by elastic means, and an active position towards which the nut is displaced against the elastic means when a braking force is applied, the actuator further comprising means for detecting the axial displacement of the nut.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 21, 2015
    Applicant: MESSIER-BUGATTI-DOWTY
    Inventors: Franck SELLES, Eric EVENOR, Nathanael RICHARD
  • Publication number: 20150136542
    Abstract: An actuator for an electrical parking brake system can decrease the number of components and reduce noise generated in an operation of the actuator. The actuator includes a case, a motor installed in the case to provide power, a driving gear provided to a rotary shaft of the motor, a pair of transmission members installed inside the case to reduce torque of the driving gear and transmit the reduced torque, and an output gear provided to an output shaft to additionally reduce the reduced torque transmitted through the transmission member and output the additionally reduced torque through the output shaft.
    Type: Application
    Filed: August 1, 2014
    Publication date: May 21, 2015
    Applicants: Hyundai Motor Company, Kia Motors Corporation, Dong Ah High Tech Co., Ltd., Hyundai Mobis Co., Ltd.
    Inventors: Sang Bum Goh, Dong Ho Kook, In Wook Park
  • Patent number: 9033117
    Abstract: A motor for actuating brake members of an electric parking (EPB) system, includes a stator and a rotor rotatably mounted to the stator. The rotor has a shaft, a commutator, a rotor core fixed to the shaft, and rotor windings wound about teeth of the rotor core and electrically connected to segments of the commutator. The rotor windings have a plurality of winding units and each of the winding units have at least two coils. The coils of each winding unit are wound about the same teeth and are connected to a same pair of segments.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: May 19, 2015
    Assignee: Johnson Electric S.A.
    Inventors: Hang Cheong Ma, Hing Shing Chung, Hai Ning Liao
  • Publication number: 20150129376
    Abstract: An electromagnetic type retarder includes a stator having spaced, circularly arranged magnetic coils forming multi-phase connections and a steel rotor surrounding the stator and rotated according to the rotation of a tire; a control device; and a driving device including at least two transistors opened and closed by a drive pulse from the control device, respectively. The multi phase connections are formed by the magnetic coils, the magnetic coils of each phase are connected with capacitors to form a resonance circuit, respectively, and each of the transistors is connected in series to at least two phase connections. The revolution speed of a rotary magnetic field induced in he magnetic coils by the rotation of the steel rotor is set smaller than the revolution speed of the steel rotor. A braking torque is controlled by turning ON and OFF the transistor inserted in one phase connection.
    Type: Application
    Filed: November 14, 2013
    Publication date: May 14, 2015
    Inventors: Mitsuyoshi Oba, Akihiro Miyoshi, Koichiro Nishimura