Rotary Motor Patents (Class 188/162)
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Patent number: 12257996Abstract: The present disclosure in at least one embodiment provides a corner module for a vehicle, including a front-wheel corner module configured to drive a front wheel and including a front-wheel inwheel motor installed on the front wheel to generate a driving force and a friction braking device configured to generate a braking force on the front wheel, a rear-wheel corner module configured to drive a rear wheel and including a rear-wheel inwheel motor installed on the rear wheel to generate a driving force, a driving information detector configured to detect driving information of the vehicle, and an electronic control unit configured to control the front-wheel corner module to form a friction braking force by using the driving information and to control the rear-wheel corner module to form a regenerative braking force, wherein the front-wheel corner module uses the front-wheel inwheel motor that is provided with a lower specification than the rear-wheel inwheel motor to save the manufacturing cost, and the rear-wType: GrantFiled: June 30, 2021Date of Patent: March 25, 2025Assignee: HYUNDAI MOBIS CO., LTD.Inventor: Jong Sung Kim
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Patent number: 12241514Abstract: Disclosed is an actuator for a brake device.Type: GrantFiled: January 19, 2021Date of Patent: March 4, 2025Assignee: HL MANDO CORPORATIONInventors: Woochul Lim, Soosung Kim, Daejune Jung, Joon-kyu Song
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Patent number: 12227153Abstract: A hydraulic and electromechanical service and parking disc brake may have a service braking system, having at least one hydraulic actuator, a parking braking system having at least one electromechanical actuator transmission irreversibility, a control system connected to the service braking system and to the parking system and a user interface. A translational member of the electromechanical actuator is restrained to be rotationally integral with respect to the caliper via an anti-rotation shape coupling with a guide portion which is integral with the caliper and arranged on a rear side of the translational member, opposite to the free end.Type: GrantFiled: July 23, 2020Date of Patent: February 18, 2025Assignee: Brembo S.p.A.Inventors: Paolo Sala, Martina Truffello, Corrado Manzoni
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Patent number: 12227158Abstract: Disclosed herein an electric parking brake (EPB) system including a motor actuator operated by an electric motor includes a motor driving circuit configured to drive the electric motor; a current sensor detecting a current flowing through the electric motor; a voltage sensor detecting a voltage input to the electric motor; and a controller configured to determine a total energy consumption based on the current and voltage of the electric motor during a parking operation, determine whether a target current of a parking operation mode needs to be changed in response to the determined total energy consumption, in response to determining that the target current needs to be changed, change the target current based on at least one of a period of use and the number of times of operation of the EPB system, and control the electric motor in response to the changed target current.Type: GrantFiled: October 14, 2020Date of Patent: February 18, 2025Assignee: HL MANDO CORPORATIONInventor: Wookhyeon Kim
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Patent number: 12222023Abstract: A ball screw device has a screw shaft that has a screw portion having a spiral-shaped shaft-side ball screw groove on an outer peripheral surface thereof, and a carrier integrally formed with the screw portion and constituting a planetary speed-reducing mechanism; a nut that has a spiral-shaped nut-side bass screw portion on an inner peripheral surface thereof; a plurality of balls arranged between the shaft-side ball screw groove and the nut-side ball screw groove; and a rolling bearing for supporting the carrier which has an outer ring having an outer ring raceway, an inner ring raceway provided on a portion facing the outer ring raceway in a radial direction, and a plurality of rolling bodies arranged between the outer ring raceway and the inner ring raceway, which is directly formed on an outer peripheral surface of the carrier.Type: GrantFiled: December 12, 2022Date of Patent: February 11, 2025Assignee: NSK LTD.Inventor: Ryo Segawa
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Patent number: 12215748Abstract: The invention relates to a brake pad spring (1) for at least one brake pad (2), in particular for two brake pads, wherein the brake bad spring (1) comprises, for each of the at least one brake pad (2), two opposing walls (9, 10), configured for receiving a portion of a backplate (3) of the respective brake pad (2) therebetween, and for guiding the respective brake pad (2) between a non-braking position (A) in which the respective brake pad (2) is located at a first section (S1) of the opposing walls (9, 10), and a braking position (B) in which the brake pad (2) is located at a second section (S2) of the opposing walls (9, 10).Type: GrantFiled: April 21, 2022Date of Patent: February 4, 2025Assignee: HL MANDO CORPORATIONInventor: Hatem Shahin
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Patent number: 12196280Abstract: The disclosure relates to an actuation device for an electromechanically actuatable motor vehicle brake, for actuating at least one brake lining of the motor vehicle brake. The actuation device comprises at least one drive element, a first power transmission train, a second power transmission train and at least one actuation element. The actuation element is designed to actuate the at least one brake lining. The at least one drive element can optionally transmit drive power to the first power transmission train or to the first and the second power transmission train. The two power transmission trains are operatively connected to the at least one actuation element or can be brought into operative connection therewith.Type: GrantFiled: March 28, 2022Date of Patent: January 14, 2025Assignee: ZF Active Safety GmbHInventor: Lukas Madzgalla
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Patent number: 12169005Abstract: A centering mechanism with a brake piston of a disk brake of a motor vehicle, with a spindle extending into a cavity in the brake piston, has dimensions that prevent a force equilibrium of a nut-spindle assembly moved completely out of the vertical position. A force vector of the gravitational force on the nut-spindle assembly extends within a contact surface between a nut and the brake piston. Thus, the brake piston can be easily assembled with the nut-spindle assembly.Type: GrantFiled: June 4, 2020Date of Patent: December 17, 2024Assignees: CONTINENTAL AUTOMOTIVE TECHNOLOGIES GMBH, SFS GROUP INTERNATIONAL AGInventors: Thomas Winkler, Lazar Milisic, Thomas Hess, Marijo Zach
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Patent number: 12162448Abstract: A brake control device includes a control unit configured to calculate a target current value, which is a target current value to the motor, based on master cylinder hydraulic pressure, and reduce an energization level to the motor when an actual current value, which is an actual current value to the motor, reaches the target current value, set a hydraulic pressure threshold value, which is a threshold value of the master cylinder hydraulic pressure corresponding to a braking force necessary for the vehicle to stop based on an inclination angle of a road on which the vehicle is stopped, and calculate a time change amount of the master cylinder hydraulic pressure, and in a case where the time change amount exceeds a predetermined change amount, increase an energization level to the motor when the master cylinder hydraulic pressure subsequently becomes less than or equal to the hydraulic pressure threshold value.Type: GrantFiled: May 21, 2020Date of Patent: December 10, 2024Inventors: Tatsuya Urano, Terushige Uraoka
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Patent number: 12151658Abstract: A controller of an electric brake device includes first, second and third PKB operators. Upon receipt of an instruction to produce a parking brake active state while a parking brake is released, the first PKB operator exerts a braking force without depending on a brake pedal and determines if a desired braking force is exerted. After the determination by the first PKB operator, the second PKB operator makes a movable part ready to come into engagement with an engaged part and causes an electric motor to rotate in a direction in which the braking force is decreased, so that the movable part comes into engagement with the engaged part to prevent the rotation of the electric motor. Then, the third PKB operator produces the parking brake active state where no driving power is generated to the electric motor.Type: GrantFiled: December 17, 2021Date of Patent: November 26, 2024Assignee: NTN CORPORATIONInventor: Yui Masuda
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Patent number: 12145567Abstract: A braking system for vehicles has a pilot pump with a manual actuation device, which is fluidically connected to an absorber device which simulates the driving resistance offered by at least one braking device. The system has at least one control unit operatively connected to at least one sensor and to the manual actuator device and is programmed to actuate the braking device via the actuator device when it receives from the sensors a braking action request signal. The control unit is programmed so as to correct the braking action requested by the user, actuating the manual actuator device so as to avoid blocking of one or more wheels or the occurrence of instability of the vehicle during braking. The control unit is programmed to induce on the manual actuation device at least one vibration when it corrects the braking action requested by the user.Type: GrantFiled: May 8, 2018Date of Patent: November 19, 2024Assignee: Brembo S.p.A.Inventors: Luca D'Urso, Massimo Di Stefano, Valerio Galizzi, Fabio Alemanno, Francesco Dozzi, Beniamin Szewczyk
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Patent number: 12145450Abstract: A vehicle control device controls a vehicle drive system including a main motor as a drive source of a vehicle, a parking lock mechanism, and an actuator. The vehicle control device includes an actuator drive control section that controls a drive of the actuator, a main motor drive control section that controls a drive of the main motor, and a range determination unit that determines whether or not a shift range is a parking range. When releasing the parking lock, if the parking range is not released within a parking range release determination time that is variable according to an operating environment, the main motor drive control section performs a meshing surface pressure reduction control for driving the main motor so as to reduce a meshing surface pressure between a parking gear and a parking lever.Type: GrantFiled: October 24, 2023Date of Patent: November 19, 2024Assignee: DENSO CORPORATIONInventors: Akihiro Harada, Shigeru Kamio, Seiji Nakayama
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Patent number: 12128861Abstract: A brake caliper for a disc brake has a caliper body straddling a brake disc. The caliper body has a thrust device housing accommodating a thrust device configured to apply a bias on at least one brake pad to abut the at least one brake pad against braking surfaces of the brake disc. The thrust device is operatively connected to a translating screw nut. The translating screw nut is operatively connected to a worm. The worm is operatively connected to a gearbox and rotatably supported by a screw thrust bearing configured to apply for the worm an axial reaction. At least one part of the gearbox is rotatably supported by at least one gearbox thrust bearing configured to apply for the at least one part of the gearbox a radial reaction. The screw thrust bearing and the gearbox thrust bearing are a same thrust bearing.Type: GrantFiled: May 11, 2020Date of Patent: October 29, 2024Assignee: Brembo S.p.A.Inventors: Marco Carrara, Paolo Sala, Luca D'Urso, Mauro Reolon
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Patent number: 12071113Abstract: The electric-powered actuator includes a control device including: a motor angle estimation unit, and a reverse-input holding control section having a function of engaging an engaging part with an engaged part by controlling a solenoid to set the reverse-input holding mechanism into a reverse-input holding state while the electric-powered actuator is applying a load and a function of, from the reverse-input holding state, disengaging the engaging part from the engaged part to set the reverse-input holding mechanism into a reverse-input holding release state. The reverse-input holding control section includes an engagement intermediate control function section configured to control the estimated rotation angle such that the engaged part and the engaging part come into a predetermined positional relation within a certain period of time, when the engaging part is brought into engagement with the engaged part and when the engaging part is brought out of engagement with the engaged part.Type: GrantFiled: September 21, 2021Date of Patent: August 27, 2024Assignee: NTN CORPORATIONInventor: Yui Masuda
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Patent number: 11994184Abstract: A brake assembly with multiple telescoping structures comprises: a rotatable part configured to be rotated by an actuator; a fixed part comprising an outer ball nut fixed to a housing; a rotatable and translatable part comprising an outer ball screw and an inner ball nut, wherein the outer ball screw is operably coupled with the outer ball nut through first rolling bodies, and the rotatable and translatable part is operably coupled with the rotatable part and is rotatable relative to the outer ball nut and axially translatable relative to the rotatable part and the outer ball nut simultaneously by rotation of the rotatable part; a translatable part comprising an inner ball screw operably coupled with the inner ball nut through second rolling bodies and configured to be axially translated relative to the inner ball nut by rotation of the inner ball nut to move a brake pad assembly.Type: GrantFiled: January 13, 2022Date of Patent: May 28, 2024Assignee: HL MANDO CORPORATIONInventors: Suersh Babu Koduri, Daniel Smith
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Patent number: 11982350Abstract: The present invention relates to a locking actuator (2) for a brake transmission (1), in particular for a brake transmission (1) of an electric parking and/or service brake, having a driving device (5), a housing (10), a transmission (20) with an axis of rotation (R) and an output (24), and a ratchet slide (30), which is movable in an axis (L) between a first position and a second position along a locking path, wherein the output (24) is coupled to the ratchet slide (30) via an eccentric (25) and can move the ratchet slide (30) in the axis (L) when the output (24) is rotated. In addition, the present invention relates to a brake transmission (1) and an operating and/or parking brake.Type: GrantFiled: April 1, 2022Date of Patent: May 14, 2024Assignee: IMS GEAR SE & CO. KGAAInventors: Johannes Stoehr, Fabian Gruler, Wilfried Synovzik
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Patent number: 11981305Abstract: An electromechanically drivable brake pressure generator for a hydraulic brake system of a vehicle. The brake pressure generator including a spindle drive unit for converting a rotary movement on the drive side into a translational movement for the purpose of actuating a piston of a hydraulic piston-and-cylinder unit. A gear unit is arranged between the spindle drive unit and an electric drive motor. A drive motor axis and an axis of the spindle drive unit are arranged radially offset from one another. The piston-and-cylinder unit and the electric drive motor are arranged on axially opposite sides of the gear unit.Type: GrantFiled: October 29, 2020Date of Patent: May 14, 2024Assignee: ROBERT BOSCH GMBHInventors: Claus Oehler, Mark Boehm
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Patent number: 11953093Abstract: The invention relates to an actuator having a drive device which drives a drive shaft, a first actuating element which is operatively connected to the drive shaft, a spring element which can be supported on one side on a housing component of the actuator and is supported on the other side on a second actuating element which is configured for stressing the spring element, wherein a rotational element which can be driven by means of the drive shaft and is rotatably mounted is provided. According to the invention, a further actuating element for actuating a switching device is provided, which further actuating element is operatively connected to the first actuating element, and a transmission device with a transmission element is provided between the first actuating element and the actuating element of the switching device.Type: GrantFiled: November 10, 2020Date of Patent: April 9, 2024Assignee: Küster Holding GmbHInventors: René Engel, Thomas Schmidt
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Patent number: 11912156Abstract: A dual motor powered compact drive comprises two electrical motors powering the planetary gear mechanism. The dual drive can provide variable speed and torque. A single electric motor operated braking system with a screw-driven wedged brake pads is described using a compact test set-up. The system comprises at least one motor and a screw shaft connected to transmit the power to a sliding plunger, and braking pads located on a braking disc, and a force sensor applied to measure the braking force, and a device to measure the parameters of the braking motor and the parameters are used as the inputs to establish a control strategy. Systems and methods for monitoring a battery pack including multiple cells are provided. The battery management system further comprises a control strategy for implementing a balancing algorithm. A balancing strategy comprises a determination of battery cells to be balanced, and a calculated balancing current.Type: GrantFiled: April 28, 2020Date of Patent: February 27, 2024Assignees: DdaniGo LLC, Coetec Company LimitedInventor: Chong Du Cho
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Patent number: 11821479Abstract: A system for controlling an electric brake for a wheel rotor having a brake pad associated therewith includes a housing defining a passage. An assembly is provided in the passage and includes a spindle rotatable about an axis and a piston aligned with the brake pad and axially movable in response to rotation of the spindle. A planetary gear stage includes a sun gear, a ring gear, and planetary gears. A first motor is coupled to the sun gear. A second motor coupled to the ring gear. A control system is configured to, in response to a detected braking event, rotate the first motor in a first direction to supply torque to the sun gear while the second motor is rotated in a second direction at varying speeds to supply torque to the ring gear such that the piston is cyclically moved towards and away from the brake pad to modulate a braking force on the rotor.Type: GrantFiled: January 11, 2022Date of Patent: November 21, 2023Assignees: ZF Active Safety US Inc., ZF Active Safety GmbHInventors: Galus Chelaidite, Kraig Gerber, Bogdan Draghici
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Patent number: 11745713Abstract: An electric brake booster for an autonomous vehicle is provided. The electric brake booster includes a body part that receives a power cylinder generating braking pressure in an autonomous driving/braking mode and a master cylinder generating braking pressure in a manual driver braking mode. A driving shaft is movable in an axial direction in the power cylinder and coupled to a piston. A first motor is connected to a first side of the driving shaft and provides driving power thereto. A second motor is connected to a second side of the driving shaft and provides driving power thereto in a direction equal to that of the driving power provided from the first motor. A controller determines whether the first or second motor normally operates and simultaneously or separately operates the first and second motors based on a magnitude of the pressure in the power cylinder or whether emergency braking occurs.Type: GrantFiled: September 21, 2020Date of Patent: September 5, 2023Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Joung-Hee Lee, Ung-Hee Shin, Jae-Hun Shim
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Patent number: 11724675Abstract: A braking system for vehicles comprising —a manual actuator device, operable by means of a lever and/or pedal, operatively connected to at least a first braking device acting on a brake disc or drum, so as to exercise a braking action, —an automatic actuator device, operatively connected to said manual actuator device and/or to said first braking device, —at least one command panel which supervises the functioning of the braking system, said command panel being operatively connected to the automatic actuator device and being programmed so that when the manual actuator device is operated, the panel commands the operation of the automatic actuator device so as to be able to: —increase the overall braking action of the braking system, further operating the first braking device or further braking devices provided in said system and acting on further brake discs or drums, —control the braking action of the braking system so as not to further operate the first braking device or further braking devices of the systemType: GrantFiled: December 17, 2014Date of Patent: August 15, 2023Assignee: Brembo S.p.A.Inventors: Carlo Cantoni, Roberto Arienti, Massimo Gualandris, Pierangelo Gherardi
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Patent number: 11608043Abstract: An electric brake device for a vehicle, including: a rotation body that rotates with a wheel; a friction member; and an actuator including (a) a piston configured to come into engagement with the friction member, (b) two electric motors each as a drive source, and (c) a motion converting mechanism configured to convert a rotating motion of each of the two electric motors into an advancing and retracting movement of the piston, the actuator being configured such that the piston is advanced to push the friction member against the rotation body so as to generate a braking force and the piston is retracted to move the friction member away from the rotation body so as to cancel the braking force.Type: GrantFiled: October 21, 2020Date of Patent: March 21, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Masayasu Ohkubo
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Patent number: 11493103Abstract: An electric brake apparatus of a vehicle includes a caliper body formed with a cylinder section and a boost force support section disposed to face the cylinder section with a brake disc interposed therebetween; an internal motor installed in the cylinder section, and generating a rotational displacement by application of current; a push rod disposed coaxially with the internal motor; a ball-in-ramp disposed between the internal motor and the push rod, converting the rotation displacement of the internal motor into a linear displacement, and transferring the linear displacement to the push rod; a piston disposed in an open part of the cylinder section, pushed and moved by the push rod; a first friction pad coupled to the piston, and disposed on one side of the brake disc; and a second friction pad coupled to the boost force support section, and disposed on the other side of the brake disc.Type: GrantFiled: October 1, 2020Date of Patent: November 8, 2022Assignee: HYUNDAI MOBIS CO., LTD.Inventor: Ha Min Jung
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Patent number: 11472381Abstract: A system and method for controlling a vehicle wheel brake are provided. The system includes one or more inertial sensors disposed within a handle coupled to, and configured for movement relative to, a fixed reference frame in the vehicle between a neutral position and one or more input positions. Each sensor generates an inertial measurement signal indicative of a value of an inertial measurement associated with movement of the handle and sensor between the neutral and input positions. A controller receives the signals, identifies a turning point in a rate of change of the value of one of the inertial measurement indicated by the signals, and generates an operator command signal when the value meets a predetermined condition. The operator command signal is configured to cause one of application or release of the wheel brake.Type: GrantFiled: September 11, 2019Date of Patent: October 18, 2022Assignee: Bendix Commercial Vehicle Systems LLCInventors: Daniel P. Zula, Nianqing Zhou, Vadim V. Nikiforov, Rajkumar Senthilkumar, Péter Gyetván
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Patent number: 11453389Abstract: A method of parking control for a vehicle equipped with an electric motor independent from a transmission includes calculating external force applied to wheels when predetermined conditions including shifting to a parking (P) stage are satisfied, determining whether a drive shaft fixing apparatus activated according to shifting to the P stage is combined, and controlling the electric motor such that a torque having a magnitude less than the external force is applied to the wheels in a direction opposite to the external force when the drive shaft fixing apparatus is determined to be combined.Type: GrantFiled: November 10, 2020Date of Patent: September 27, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Jin Kyeom Cho, Sung Bae Jeon, Hui Un Son
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Patent number: 11447111Abstract: A brake motor control device for control of an electric brake motor of an electromechanical braking device includes a connection unit configured to be connected to an auxiliary control unit for controlling the electric brake motor in an event of a fault of the brake motor control device. The electric brake motor is configured to displace a brake piston against a brake disc.Type: GrantFiled: January 17, 2018Date of Patent: September 20, 2022Assignee: Robert Bosch GmbHInventors: Peter Rebholz-Goldmann, Steffen Zechmeister, Toni Frenzel
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Patent number: 11433767Abstract: A vehicle kill switch assembly includes a switch that is coupled to a vehicle. The switch is positioned beneath a driver's seat of the vehicle and the switch is electrically coupled to the ignition system of the vehicle. The ignition system is turned off when the switch is disengaged. A biasing unit is coupled to the vehicle and the driver's seat is coupled to the biasing unit. The biasing unit biases the driver's seat upwardly in the vehicle and the biasing unit is compressed when the driver sits in the driver's seat. The switch is engaged when the biasing unit is compressed to facilitate the vehicle to be driven. Conversely, the switch is disengaged when the biasing unit biases the driver's seat upwardly to inhibit the vehicle from being driven.Type: GrantFiled: September 18, 2019Date of Patent: September 6, 2022Inventor: George Rodriguez
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Patent number: 11434961Abstract: A clutch actuator for actuating a clutch in the drive train of a motor vehicle, having a housing, a drive, a pushrod, which can be adjusted in an axial direction by the drive, a tappet, which is coupled to the pushrod, and a guide component which is accommodated movably in the housing and receives that end of the tappet which faces the pushrod. At least one stroke sensor, which is associated with the guide component, and a rotation angle sensor, which is associated with the drive, are provided. Embodiments relate to an assembly having a clutch actuator of this kind and a controller, the controller is set up and designed to determine the start of the release stroke of a clutch actuated by the clutch actuator from a comparison of the signal of the stroke sensor and the signal of the rotation angle sensor.Type: GrantFiled: November 19, 2020Date of Patent: September 6, 2022Assignee: FTE automotive GmbHInventors: Dimitri Ostrohov, Paul Stawinoga
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Patent number: 11332113Abstract: A brake actuator includes: a housing; an electric motor with a hollow motor shaft rotating; a rotating shaft disposed inside the motor shaft to be coaxial therewith; a piston with a rear end disposed inside the motor shaft and a front end engaged with the friction member; a speed reduction mechanism decelerating rotation transmitted from the motor shaft and transmitting the rotation to the rotating shaft; and a motion conversion mechanism converting a rotating motion of the rotating shaft into an advancing/retracting motion of the piston. The motor shaft is rotatably supported by the housing at an outer peripheral surface thereof, and the rotating shaft is rotatably supported by an inner peripheral surface of the motor shaft via rollers at an outer peripheral surface thereof as well as by the housing via a thrust bearing at a rear end of the rotating shaft.Type: GrantFiled: November 18, 2019Date of Patent: May 17, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Nao Ikuma, Masaki Nanahara, Naoki Yabusaki
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Patent number: 11213408Abstract: 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: GrantFiled: January 8, 2021Date of Patent: January 4, 2022Assignee: Vanderbilt UniversityInventors: Michael Goldfarb, Harrison Bartlett, Brian Lawson
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Patent number: 11192529Abstract: 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: GrantFiled: August 30, 2019Date of Patent: December 7, 2021Assignee: DENSO CORPORATIONInventor: Shigeru Kamio
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Patent number: 11187292Abstract: 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: GrantFiled: August 7, 2019Date of Patent: November 30, 2021Assignee: Mando CorporationInventor: Joon-Kyu Song
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Patent number: 11190081Abstract: 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: GrantFiled: November 9, 2018Date of Patent: November 30, 2021Assignee: NTN CORPORATIONInventor: Yui Masuda
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Patent number: 11098789Abstract: 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: GrantFiled: April 21, 2020Date of Patent: August 24, 2021Assignee: TIMOTION TECHNOLOGY CO., LTD.Inventor: Chou-Hsin Wu
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Patent number: 11101716Abstract: 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: GrantFiled: January 26, 2017Date of Patent: August 24, 2021Assignee: NTN CORPORATIONInventors: Takushi Matsuto, Yoshinori Ikeda, Yuuki Naitou
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Patent number: 11059468Abstract: 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: GrantFiled: March 29, 2018Date of Patent: July 13, 2021Assignee: ADVICS CO., LTD.Inventors: Marshall Bull, Shun Tsukamoto
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Patent number: 10926745Abstract: 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: GrantFiled: April 7, 2016Date of Patent: February 23, 2021Assignee: Meggitt Aircraft Braking Systems CorporationInventors: Arnold A. Beck, Scott G. Knight
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Patent number: 10925754Abstract: 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: GrantFiled: January 16, 2018Date of Patent: February 23, 2021Assignee: Vanderbilt UniversityInventors: Michael Goldfarb, Harrison Bartlett, Brian Lawson
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Patent number: 10829109Abstract: 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: GrantFiled: March 25, 2019Date of Patent: November 10, 2020Assignee: FCA US LLCInventors: Sathya Manivasagam, Behrouz Ashrafi, Feisel F Weslati
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Patent number: 10800391Abstract: 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: GrantFiled: April 6, 2017Date of Patent: October 13, 2020Assignee: ZF Active Safety GmbHInventor: Gregor Poertzgen
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Patent number: 10697510Abstract: 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: GrantFiled: July 9, 2015Date of Patent: June 30, 2020Assignee: Robert Bosch GmbHInventors: Frank Baehrle-Miller, Simon Hauber
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Patent number: 10683917Abstract: 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: GrantFiled: October 24, 2017Date of Patent: June 16, 2020Assignee: TIMOTION TECHNOLOGY CO., LTD.Inventor: Chou-Hsin Wu
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Patent number: 10670096Abstract: 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: GrantFiled: December 19, 2016Date of Patent: June 2, 2020Assignee: FOUNDATION BRAKES FRANCEInventor: Didier Esnee
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Patent number: 10436298Abstract: 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: GrantFiled: December 3, 2015Date of Patent: October 8, 2019Assignees: HIRATA CORPORATION, THK CO., LTD.Inventors: Bungo Matsumoto, Yuji Kubota, Tomoya Uchikoshi
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Patent number: 10353422Abstract: 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: GrantFiled: June 23, 2016Date of Patent: July 16, 2019Assignee: KONGSBERG POWER PRODUCTS SYSTEMS I, INC.Inventors: Ronda Poirier, Anthony Bugamelli, Aaron Hengst, Jesse Henrikson
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Patent number: 10344840Abstract: 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: GrantFiled: September 20, 2017Date of Patent: July 9, 2019Assignee: RATIER-FIGEAC SASInventor: Frédéric Vermande
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Patent number: 10316915Abstract: 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 atType: GrantFiled: April 1, 2015Date of Patent: June 11, 2019Assignee: Freni Brembo S.P.A.Inventor: Paolo Sala
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Patent number: 10259498Abstract: 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: GrantFiled: November 25, 2015Date of Patent: April 16, 2019Assignee: HUSQVARNA ABInventors: Patrik Jägenstedt, Fredrik Kallström, Magnus Bergenholm, Mats Svensson, Magnus Öhrlund, Mattias Kamfors
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Patent number: 10232716Abstract: 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: GrantFiled: October 31, 2012Date of Patent: March 19, 2019Assignee: Hitachi Automotive Systems, Ltd.Inventors: Katsuhiro Higuchi, Toshio Hiraishi, Kenji Kubo