Braking Pressure Demand Or Braking Force Desire Patents (Class 303/155)
  • Patent number: 11958453
    Abstract: A method for operating a brake system. A brake request signal characterizing a brake request is generated by actuating a positioner system of an actuating circuit, and a setpoint brake pressure required in an active circuit is ascertained based on the brake request signal. An actual brake pressure is set in the active circuit according to the setpoint brake pressure using a pressure generation device by moving a displacement piston using an electric motor to actuate a wheel brake coupled with the active circuit. Under the condition that the brake request signal is constant over a predefined period of time, a pressure modulation is carried out, which includes setting the actual brake pressure in the active circuit to a value that is greater than the setpoint brake pressure, and lowering the actual brake pressure by moving the displacement piston using the electric motor until the setpoint brake pressure is reached.
    Type: Grant
    Filed: May 25, 2019
    Date of Patent: April 16, 2024
    Assignee: ROBERT BOSCH GMBH
    Inventors: Bertram Foitzik, Joerg Riethmueller, Oliver Fuchs, Timo Haible
  • Patent number: 11884253
    Abstract: A vehicle brake system is disclosed for dynamic braking of a vehicle based on wheel speeds, including a first wheel speed sensor, a second wheel speed sensor, a main controller for calculating a first wheel speed of each wheel by a signal received from the first wheel speed sensor to generate a first wheel speed signal and to perform dynamic braking control based on the first wheel speed signal, an auxiliary controller for calculating a second wheel speed of each wheel by a signal received from the second wheel speed sensor to generate a second wheel speed signal, and digital signal transfer lines for transceiving a normal signal or abnormality signal between the main and auxiliary controllers.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: January 30, 2024
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventor: Woo Hyun Hwang
  • Patent number: 11872966
    Abstract: An electromechanical or electromagnetic wheel brake cylinder for a braking system, embodied with at least one hydraulic braking circuit, of a vehicle, including a pressure chamber that is embodied in the electromechanical or electromagnetic wheel brake cylinder and is delimited by a displaceable first brake piston of the electromechanical or electromagnetic wheel brake cylinder, and is linkable to a sub-volume of the at least one hydraulic braking circuit of the braking system in such a way that the first brake piston is displaceable by way of a pressure that is increased at least in in the respective sub-volume. The electromechanical or electromagnetic wheel brake cylinder encompasses an electromechanical or electromagnetic actuator and a second brake piston which is displaceable by operation of the electromechanical or electromagnetic actuator.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: January 16, 2024
    Assignee: ROBE IT BOSCH GMBH
    Inventors: Thomas Schmidt, Dieter Blattert, Julian Ewald
  • Patent number: 11859679
    Abstract: A control device controls a torque transmission device. The torque transmission device includes an actuator that operates by being energized and a torque transmission portion that is switched to a transmission state or a non-transmission state by the actuator operating, and transmits a torque between a first transmission portion and a second transmission portion when the torque transmission portion is in the transmission state. The control device includes a target calculation unit, a mode determination unit, and a control unit. The target calculation unit calculates a target transmission torque that is a torque to be transmitted between the first transmission portion and the second transmission portion. The mode determination unit determines an operating mode among an engagement mode, a release mode, and a steady mode. The control unit controls the actuator based on the operating mode determined by the mode determination unit.
    Type: Grant
    Filed: March 10, 2023
    Date of Patent: January 2, 2024
    Assignee: DENSO CORPORATION
    Inventor: Masashi Nakagawa
  • Patent number: 11846331
    Abstract: A control device controls a torque transmission device. The torque transmission device includes an actuator that operates by being energized and a torque transmission portion that is switched to a transmission state or a non-transmission state by the actuator operating, and transmits a torque between a first transmission portion and a second transmission portion when the torque transmission portion is in the transmission state. The control device includes a target calculation unit, a mode determination unit, and a control unit. The target calculation unit calculates a target transmission torque that is a torque to be transmitted between the first transmission portion and the second transmission portion. The mode determination unit determines an operating mode among an engagement mode, a release mode, and a steady mode. The control unit controls the actuator based on the operating mode determined by the mode determination unit.
    Type: Grant
    Filed: March 8, 2023
    Date of Patent: December 19, 2023
    Assignee: DENSO CORPORATION
    Inventor: Masashi Nakagawa
  • Patent number: 11827199
    Abstract: A vehicle brake device includes a stroke simulator, a stroke sensor, and a brake start determination unit. The stroke simulator includes a cylinder, a piston, an orifice, and a pressure sensor. The cylinder defines a liquid pressure chamber to which a brake liquid is supplied via a fluid path. The piston slides in the cylinder by the brake liquid supplied to the liquid pressure chamber. The orifice is formed in the fluid path. The pressure sensor detects a reaction pressure. The stroke sensor is configured to detect the stroke. The brake start determination unit determines an operation of the brake operation member has been started in a case where the reaction pressure detected by the pressure sensor becomes equal to or greater than a first threshold value and the stroke detected by the stroke sensor becomes equal to or greater than a second threshold value.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: November 28, 2023
    Assignee: ADVICS CO., LTD.
    Inventors: Tatsushi Kobayashi, Tomotaka Asano, Yasuhito Ishida, Ryosuke Endo, Takayuki Yamamoto
  • Patent number: 11815141
    Abstract: The present disclosure provides a disk brake capable of making it easier for the piston to return than conventional ones when the brake is released from a state where the brake is applied. In the disk brake, the seal groove 5 includes a front wall 51, a rear wall 52 farther from the brake rotor than the front wall 51 in the axial direction Dl, and a bottom wall 53 extending along the axial direction Dl between the rear wall 52 and the front wall 51. The bottom wall 53 includes a front bottom wall 53a adjacent to the front wall 51 and a rear bottom wall 53b adjacent to the rear wall 52. The rear bottom wall 53b has a depth d2 from the inner circumferential surface 42a of the cylinder 42, the depth d2 being larger than a dimension d3 of the uncompressed piston seal 6 in the direction of the depth d2 and being larger than a depth d1 from the inner circumferential surface 42a of the cylinder 42 of the front bottom wall 53a.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: November 14, 2023
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Kohei Matsushita, Kisho Ashida, Hisashi Tanie, Yusuke Nishino, Kazumoto Sano, Ryota Ashizawa
  • Patent number: 11780418
    Abstract: According to an embodiment of the present invention, provided is an electro-hydraulic braking system including an auxiliary braking system capable of performing a 2-channel compression/decompression control and a 1-channel decompression control.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: October 10, 2023
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventor: Sung Ki Ahn
  • Patent number: 11738729
    Abstract: Towed vehicles can be extremely heavy. Accordingly, it is too much of a burden to the braking system of a towing vehicle to not have brakes on the towed vehicle. Controlling the brakes of the towed vehicle must be accurately applied otherwise very dangerous conditions can be created. A method of controlling braking of a towed vehicle is, therefore, needed. The method comprises receiving speed signals based on speed of a towing vehicle, or a towed vehicle, or both said towing vehicle and said towed vehicle, receiving pressure signals based on pressure of a hydraulic brake system of the towing vehicle, and generating a brake output signal based on the speed signals and the pressure signals.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: August 29, 2023
    Assignee: Horizon Global Americas Inc.
    Inventors: Marcia Albright, Chandrakumar Kulkarni
  • Patent number: 11679746
    Abstract: A braking control apparatus for a vehicle including: a pedal stroke sensing unit configured to sense a pedal stroke of a brake pedal; a pedal simulator pressure sensing unit configured to sense pressure of a pedal simulator that provides a reaction force in response to a stepping force of the brake pedal; and a control unit configured to apply different computation methods by selectively utilizing a pedal stroke STR sensed by the pedal stroke sensing unit and pedal simulator pressure P_SIM sensed by the pedal simulator pressure sensing unit at a plurality of stages defined while the brake pedal is pressed and released, and decide required braking pressure P which is required for braking the vehicle.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: June 20, 2023
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventors: Ji Weon Ko, Jin Ho Seong
  • Patent number: 11661046
    Abstract: A pedal feel emulator comprises a housing extending along a center axis between a closed end and an opened end and defining a chamber extending therebetween. A first piston is slidably disposed in the chamber. The first piston defines a compartment in fluid communication with the chamber. A second piston is slidably disposed in the compartment. A spring seat extends radially outwardly from the second piston. A first elastic member is located in the chamber extending between the spring seat and the closed end. A second elastic member is located in the compartment and extending between the spring seat and the first piston. A third elastic member is located between the second piston and the first piston. A brake system including the pedal feel emulator is also disclosed herein.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: May 30, 2023
    Assignee: BWI (SHANGHAI) CO., LTD
    Inventors: Steven Glenn Hoxie, Dongqiang Luo
  • Patent number: 11628869
    Abstract: A system and method for automating railroad maintenance by a tie gang using electronic tie marking (ETM) configured to optimize railroad asset maintenance. The system enables collision avoidance between members of the tie gang performing maintenance on railway assets (e.g., Rails, Ties, Ballasts, Turnouts, Crossings, etc.). The system can generate production numbers for the railway assets and evaluate an asset queue for the tie gang to perform maintenance. The system can utilize real-time updates from the tie gang to optimize work output. The system can provide a customizable user interface to identify, track, and process information related to maintenance of the railroad asset. The system also provides for a heads-up-display (HUD) to notify an operator of relevant information, such as maintenance information, travel indicators, and updated asset queue. The system can identify a next location and calculate an optimum path based on sensor input incorporating machine-specific and environmental characteristics.
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: April 18, 2023
    Assignee: BNSF Railway Company
    Inventors: Michael James Brick, Lisa Marie Kelly, Samuel Minton, Richard William Keller
  • Patent number: 11554780
    Abstract: A regenerative braking control system of an AWD (all-wheel-drive) hybrid vehicle including a front wheel HEV (hybrid electric vehicle) powertrain and a rear wheel EV (electric vehicle) powertrain is provided. The control system includes a manipulating instrument mounted to a steering wheel for manual shifting and regenerative braking control by a driver's manipulation, and a controller for adjusting a regenerative braking amount and controlling a shift pattern of each of a front wheel motor of the front wheel HEV powertrain and a rear wheel motor of the rear wheel EV powertrain by receiving a (?) or (+) manipulation signal or a hold manipulation signal of the manipulating instrument.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: January 17, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yong Kak Choi, Joon Shik Park, Chang Min Lee
  • Patent number: 11554761
    Abstract: A method for operating an electromechanical braking system for a transportation vehicle having a brake pedal, a brake master cylinder, and an electromechanical brake booster. The electromechanical brake booster includes an actuator motor for increasing or decreasing the pedal force on the brake master cylinder to boost or reduce the braking power accordingly. A change in the boosting force of the electromechanical brake booster is limited to avoid uncontrolled changes of the brake boosting.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: January 17, 2023
    Inventors: Michael Schmalbruch, Adrian Szawlowski
  • Patent number: 11548625
    Abstract: A braking system is disclosed. In various embodiments, the braking system includes a brake stack; an actuator configured to apply a compressive load to the brake stack; a servo valve coupled to a power source and to the actuator; and a brake control unit configured to operate the servo valve at a current ramp rate in response to a pedal deflection signal, wherein the current ramp rate is determined via a relationship between the current ramp rate and a brake pressure command signal.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: January 10, 2023
    Assignee: Goodrich Corporation
    Inventors: Tyler Arsenault, Naison E. Mastrocola, Marc Georgin, Resham Bains
  • Patent number: 11541860
    Abstract: A system and method for detecting brake judder in a vehicle may include storing information related to determining whether judder was generated when a vehicle was braked, and facilitating easy recognition of a vehicle in which judder was generated, on the basis of stored information without performing methods such as a separate driving reproduction test and a disc thickness measurement test when maintaining later.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: January 3, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sun Joo Kim, Gwang Yun Kim, Hyun Dong Her, Jae Kwang Seol, Jae Min Yun
  • Patent number: 11524679
    Abstract: A vehicle includes an engine, an accelerator pedal, and a controller. The controller is programmed to command torque to the engine based on a set speed of adaptive cruise control and is programmed to, in response to the adaptive cruise control being active, a measured lateral acceleration of the vehicle exceeding a user-defined lateral acceleration threshold during a road curve, and the accelerator pedal being released, reduce a speed of the vehicle below the set speed until the measured lateral acceleration is less than the lateral acceleration threshold.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: December 13, 2022
    Assignee: Ford Global Technologies, LLC
    Inventors: Guopeng Hu, Yang Xu, Zhengyu Dai, Hong Jiang
  • Patent number: 11518405
    Abstract: Provided is a vehicle control system capable of, when a swaying phenomenon occurs during towing, preventing the swaying phenomenon from becoming worse due to driving force reduction control based on an increase in steering angle-related value. This vehicle control system comprises a steering wheel, a driving force control mechanism to control a driving force of a vehicle, and a power-train control module to control the driving force control mechanism. The power-train control module is operable, upon an increase in steering angle, to control an engine to reduce an output torque of the engine and, when a reversal of yaw rate of the vehicle is repeated in a situation where the vehicle is performing a towing operation, to restrict the output torque reduction based on the increase in the steering angle.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: December 6, 2022
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Daisaku Ogawa, Daisuke Umetsu, Setsuya Kishimura
  • Patent number: 11465509
    Abstract: A vehicle control apparatus includes a generator, a brake system, first and second sensors, first and second deceleration rate setting units, and a power generation torque controller. The first deceleration rate setting unit sets, when a first control mode that decelerates a vehicle on the basis of a brake operation performed by an occupant is executed, an allowable deceleration rate upon deceleration of the vehicle on the basis of a brake operation amount. The second deceleration rate setting unit sets, when a second control mode that decelerates the vehicle on the basis of a situation ahead of the vehicle is executed, the allowable deceleration rate upon deceleration of the vehicle on the basis of a brake fluid pressure. The power generation torque controller controls power generation torque of the generator on the basis of the allowable deceleration rate that is set by the first or second deceleration rate setting unit.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: October 11, 2022
    Assignee: SUBARU CORPORATION
    Inventor: Takahiro Kinoshita
  • Patent number: 11453372
    Abstract: Provided is a brake apparatus, a brake control method, and a method for determining a lock abnormality in a motor capable of reducing motor drive noise at the time of a self-diagnosis of the motor regardless of a condition.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: September 27, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventor: Masanori Segawa
  • Patent number: 11332112
    Abstract: A brake system for a motor vehicle having hydraulically actuatable wheel brakes. Each wheel an electrically actuatable inlet valve and electrically actuatable outlet valve for setting wheel-specific brake pressures. A first electrically controllable pressure provision device is connected to a brake supply line to which the wheel brakes are connected. A second electrically controllable pressure provision device is connected to the brake supply line. A first electrical device activates the first pressure provision device. A second electrical device activates the second pressure provision device. Electrically independent first and second electrical partitions are provided. The first pressure provision device and the first electrical device are assigned to the first electrical partition and the second pressure provision device, the second electrical device and the inlet and outlet valves are assigned to the second electrical partition. The inlet and outlet valves are activated by the second electrical device.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: May 17, 2022
    Inventors: Jochen Zimmermann, Robert Grimm, Jochen Beuss, Roland Caspari
  • Patent number: 11325575
    Abstract: A brake valve for a compressed air brake system of a utility vehicle includes a compressed air input configured to connect to a system pressure, a compressed air output configured to connect a brake control line, and at least one sensor configured to determine a brake valve actuation travel of an actuating element of the brake valve with a working interconnection to the brake pedal. The brake valve further includes a characteristic curve memory storing two stored characteristic curves and/or dependences and at least one determination device. The brake valve is configured to output at least two useful sensor signals, a first of which represents a brake valve output pressure and a second of which represents a percentage actuation position of the actuating element. The at least one sensor is configured to generate an actuating signal depending on the brake valve actuation travel of the actuating element.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: May 10, 2022
    Assignee: ZF CV SYSTEMS EUROPE BV
    Inventors: Torsten Wallbaum, Malte Berroth, Arnd Gaulke
  • Patent number: 11148647
    Abstract: A method of operating an anti-lock braking system includes that real-time brake corner temperature data, real-time brake corner pressure data real-time brake corner torque data, and deceleration parameters of the vehicle are detected. The method also includes that an apparent friction at the brake corner is determined in response to at least the real-time brake corner temperature data, the real-time brake corner pressure data, the real-time brake corner torque data, and the deceleration parameters of the vehicle.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: October 19, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Alexander A. Nygaard, Chong Keong Tang, Matthew A. Robere, Steven J. Weber, Anthony J. Rifici, Ali Shabbir
  • Patent number: 11072314
    Abstract: Am electric braking system is disclosed. The electric braking system comprising: a cylinder unit having a first piston connected to a brake pedal, a cylinder chamber with the volume varying by displacement of the first piston, and a pressing chamber with the volume varying by a pressing member, and sending an intention of braking to an electronic control unit; a reservoir storing a working fluid, a pressure applier having a second piston operating by receiving power and a pump chamber with the volume varying by displacement of the second piston, and hydraulically coupled to wheel brakes, a reservoir line connecting the cylinder chamber and the reservoir and having a reservoir valve; and a pump reservoir line connecting the pump chamber and the reservoir and having a dump valve.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: July 27, 2021
    Assignee: MANDO CORPORATION
    Inventor: Hans Joerg Feigel
  • Patent number: 11066055
    Abstract: A braking system for a motor vehicle for actuating hydraulically actuatable wheel brakes comprises a first and a second electrically controllable pressure source for providing a brake pressure for actuating the wheel brakes. A first electric energy supply unit and a second electric energy supply unit that is independent of the first electric energy supply unit are provided. An electrically controllable pressure modulation device for setting brake pressures that are individual to each of the wheel brakes has at least one electrically actuatable inlet valve for each wheel brake. The first pressure source can be supplied with electric energy by the first energy supply unit, the second pressure source can be supplied with electric energy by the second energy supply unit, and the pressure modulation device can be supplied with electric energy by the first energy supply unit and by the second energy supply unit.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: July 20, 2021
    Assignee: Continental Automotive Systems, Inc.
    Inventors: Marco Besier, Stefan Drumm
  • Patent number: 11059465
    Abstract: To be able to set a spring force of a first simulator spring of a pedal travel simulator of a hydraulic power vehicle braking system, a stroke limiter is provided, which is situated between a simulator piston and the simulator spring, including two rams projecting in opposite directions as stops, which are plastically compressed for setting the spring force. To set a “jump-in,” the stroke limiter includes laterally projecting, plastically bendable wings as supports for a second simulator spring, which is situated between the stroke limiter and the simulator piston.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: July 13, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Andreas Weh, Martin Hagspiel
  • Patent number: 10940865
    Abstract: A method for determining a state of a roadway of a vehicle. A first distance value of a measurement coordinate to a first tire characteristic curve associated with a first state of the roadway is ascertained. A second distance value of the measurement coordinate to a second tire characteristic curve associated with a second state of the roadway is ascertained. The measurement coordinate represents a measurement carried out using at least one vehicle sensor of a presently utilized traction between wheels of the vehicle and the roadway and a wheel slip of the wheels, while the first tire characteristic curve and the second tire characteristic curve are based on a model function for the modeled representation of the traction as a function of the wheel slip. An output signal representing the state of the roadway is output using the first distance value and the second distance value.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: March 9, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Nils Hagenlocher, Tobias Oberhardt
  • Patent number: 10857987
    Abstract: A control device including a fluid pressure control unit for controlling a pressure in a wheel cylinder by driving an electric motor of a pump on the basis of a command value; a motor target calculation unit for calculating a motor speed target value in accordance with an amount of increase in a fluid pressure target value; and a difference calculation unit for deriving a calculated value representing a difference obtained by subtracting the actual value from the target value for either the electric motor rotation speed or the pressure. The fluid pressure control unit derives the command value such that when the motor speed target value is less than the previous actual value for the electric motor rotation speed, the previous actual value is made the upper-limit of the command value, and the command value increases in proportion to the motor speed target value and to the calculated value.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: December 8, 2020
    Assignee: ADVICS CO., LTD.
    Inventors: Kazuya Morishita, Takanori Iida
  • Patent number: 10807576
    Abstract: A method of controlling brake clearance of a braking system of a vehicle includes providing a brake actuator, a brake input device, and a cross-drive transmission having an output and a brake pack. The method includes receiving a brake input request from the brake input device, actuating the brake actuator to apply the brake pack, and moving the brake actuator from a first position to a second position during the actuating step. The method also includes detecting an axial movement of the actuator from the first position to the second position, comparing the axial movement to a clearance threshold, and adjusting a return position of the brake actuator that is offset from the first position when the axial movement exceeds the clearance threshold. The method further includes controlling movement of the brake actuator from the second position to the return position.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: October 20, 2020
    Assignee: ALLISON TRANSMISSION, INC.
    Inventor: Bruce E. Crum
  • Patent number: 10766470
    Abstract: This brake control device includes: an operation amount sensor which detects the brake operating member operation amount; front-wheel and rear-wheel actuators which generate braking force in front/rear wheels; front-wheel and rear-wheel sensors which detect the outputs of the front-wheel and rear-wheel actuators; and a controller which controls the front-wheel and rear-wheel actuators based on the operation amount and the outputs of the front and rear wheels. On the basis of the operation amount and/or the output of the rear wheels, the controller determines whether or not a long-term low-load state in which the friction member is continuously pressed against the rotary members of the rear wheels within a predetermined range over a long period of time is established. If so, the distribution ratio of the rear-wheel braking force to the total applied braking force is decreased compared to when a long-term low-load state is not determined to be established.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: September 8, 2020
    Assignee: ADVICS CO., LTD.
    Inventors: Shinichiro Yukoku, Takahisa Hishikawa
  • Patent number: 10670145
    Abstract: A powertrain for an electric vehicle includes: a motor that generates torque, a motor controller that controls the motor; a two-stage speed reducer connected to the motor and having a synchronizer movable to a neural position when the electric vehicle is parked; a pair of drive wheels connected to the two-stage speed reducer through a differential gear; a pair of electric parking brakes (EPBs) that locks or unlocks the pair of drive wheels, respectively, and a vehicle controller that controls the pair of EPBs. The synchronizer moves to the neutral position to prevent the torque of the motor from being delivered to the drive wheels.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: June 2, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Jong Hyun Kim, Seung Hyun Youn, Yeon Ho Kim
  • Patent number: 10668911
    Abstract: A controller is configured to control at least one valve of a brake system of a vehicle that is closed in a de-energized state. The controller includes an actuation device configured to actuate the valve into an open state and to keep the valve in the open state. A holding current with at least one first average target current strength is output as a control signal by the actuation device to the valve. The holding current output to the valve is increased to at least one second average target current strength which is greater than the first average target current strength while taking into consideration provided information pertaining to a current rotational speed of an electric motor of a piston/cylinder device of the brake system and/or at least one current hydraulic pressure in at least one sub-volume of the brake system.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: June 2, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Andreas Bresser, Michael Knoop
  • Patent number: 10661771
    Abstract: Disclosed herein are an electronic parking brake system for a vehicle and a method of driving the system, which are capable of stopping the vehicle when the operation of a vehicle service brake is impossible during the travel of the vehicle. The electronic parking brake system for the vehicle includes a controller that stores a control value of a parking brake for decelerating the vehicle to a target deceleration and outputs a braking command including the control value of the parking brake, and an electronic parking brake that generates a clamping force based on a braking command inputted from the controller.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: May 26, 2020
    Assignee: MANDO CORPORATION
    Inventor: Kwang Hyun Ryu
  • Patent number: 10637918
    Abstract: A high availability and load balanced content delivery system and method. A cloud computing content delivery system is provided including multiple content delivery servers (CDSs) configured to deliver content to multiple client devices. The client devices are configured to maintain a source list identifying the multiple CDSs and a primary CDS. The client devices send requests (e.g., yum requests) to the CDS for the mirror list. The client device then uses the mirror list and sends content requests to a first entry on the mirror list. Each CDS is configured to update the mirror list by applying a load balancing algorithm and provide the mirror list to a client device in the event that one or more CDSs are unavailable.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: April 28, 2020
    Assignee: Red Hat, Inc.
    Inventors: Jason Edward Dobies, Todd Brian Sanders
  • Patent number: 10358120
    Abstract: A vehicle stop maintaining system is provided, which includes a foot brake mechanism for braking vehicle wheels by applying hydraulic brake pressure according to brake pedal depression, a brake force control mechanism for braking the wheels by controlling a pressurizer, an electric parking brake mechanism for braking the wheels by operating an electric brake mechanism, and a controller comprising a processor for entering a first stop mode when a vehicle stopped state is detected. The processor executes a first determining module for determining existence of an interruptive factor, and a second determining module for determining a failure of the electric parking brake mechanism. If the interruptive factor exists, the controller executes a second stop mode. If the electric parking brake mechanism is determined as failed under the second stop mode, the controller operates a notification device for issuing a notification to a vehicle driver.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: July 23, 2019
    Assignee: Mazda Motor Corporation
    Inventors: Masaru Takase, Shigeyuki Uehara
  • Patent number: 10293766
    Abstract: An electrical parking brake device includes an operation switch and a control circuit. The operation switch includes a switch button, miniature switches, operation switch terminals and inside conductors, the switch button being in one of an On state, an Off state and a neutral state, the miniature switches operating in conjunction with the state of the switch button. The control circuit includes control circuit terminals, a switch verification circuit, management circuitry and brake application command circuitry, the management circuitry managing the electrical parking brake device. The operation switch defines closed circuits that are independent in terms of a pair of the operation switch terminals, for each of the operating states. The closed circuits are closed circuits that, when one or more of the miniature switches fail, avoids influence of the failure, by the miniature switches other than the one or more failing miniature switches.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: May 21, 2019
    Assignee: NIDEC ELESYS CORPORATION
    Inventor: Yutaka Watanabe
  • Patent number: 10266165
    Abstract: A braking system for a vehicle includes: a front axle wheel brake cylinder; a rear axle wheel brake cylinder; and a control electronics system for controlling a first brake pressure in the front axle wheel brake cylinder and/or a second brake pressure in the rear axle wheel brake cylinder. A limiting value z-critical is defined for the braking system, which specifies a maximum braking action, at which a traction stress on the front axle of the vehicle and a traction stress on the rear axle of the vehicle are equal. The braking system is mechanically configured for a z-critical of at least 0.7 g, and the braking system is controlled by the control electronics system during operation using a z-critical value of at most 0.7 g.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: April 23, 2019
    Assignee: ROBERT BOSCH GMBH
    Inventors: Jochen Feinauer, Stefan Strengert, Karl-Heinz Willmann
  • Patent number: 10137877
    Abstract: A brake system for motor vehicles, having a brake master cylinder actuated by a brake pedal with at least one first pressure chamber. The brake master cylinder communicating with wheel brakes; and a hydraulic fluid storage container. A pressure balancing connection connects to the fluid storage container. A first electrically controllable pressure supply device communicating with the wheel brakes. A pressure regulating valve arrangement for regulated wheel brake pressure. A first electronic control and regulating unit actuated the first pressure supply device and the pressure regulating valve arrangement. A second electrically controllable pressure supply device connected to the brake master cylinder and having a pressure outlet connection paired with a second electronic control and regulating unit. The first and the second pressure supply device generate braking pressures independently of each other, and the pressure outlet connection is connected to the pressure balancing connection.
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: November 27, 2018
    Assignee: CONTINENTAL TEVES AG & CO. OHG
    Inventors: Hans-Jörg Feigel, Harald Biller
  • Patent number: 10112586
    Abstract: An improved system for braking an agricultural vehicle propelled by a hydrostatic drive unit is disclosed. An operator provides a desired speed command from a first user interface, such as a joystick. The joystick generates a command responsive to the deflection and communicates the command to a controller. The agricultural vehicle also includes a second user interface, such as a brake pedal. The brake pedal includes a transducer configured to generate a signal corresponding to a deflection of the brake pedal which is also communicated to the controller. If the operator presses the brake pedal when the joystick is commanding motion, the controller reduces the signal from the joystick. The amount the signal is reduced increases as the deflection of the brake pedal increases until the brake pedal overrides any speed command from the joystick.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: October 30, 2018
    Assignee: CNH Industrial America LLC
    Inventors: Nathan Paul Brooks, Kerry J. Treinen
  • Patent number: 10106138
    Abstract: In one embodiment of the brake system, the control unit executes a fluid suction control to suck in the brake fluid from the supply line. The control unit determines whether or not the fluid suction control needs to be executed, and in the event that the control unit determines that the fluid suction control needs to be executed, the control unit is configured to close the cutoff valve and control the electric actuator to drive the slave cylinder in a depressurizing direction.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: October 23, 2018
    Assignee: AUTOLIV NISSIN BRAKE SYSTEMS JAPAN CO., LTD.
    Inventors: Yasushi Aoki, Hiroaki Tokoi, Nobuyuki Kobayashi
  • Patent number: 10011277
    Abstract: A path of a target object is predicted. A path of a non-moving host vehicle is predicted based on at least one of a predetermined host vehicle acceleration and a predetermined host vehicle speed. A threat number for the target is determined based at least in part on the predicted path of the host vehicle, the threat number indicating a probability of a collision between the target and the host vehicle. A brake is actuated when the threat number is above a threat number threshold.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: July 3, 2018
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Matthew Joseph Meinhart, Alex Maurice Miller, Roger Arnold Trombley, Gang Song, Ahsan Qamar, Fangjun Jiang
  • Patent number: 9566962
    Abstract: A method for controlling a braking system for motor vehicles having a hydraulically actuatable wheel brake which can be actuated by an electronically controllable pressure supply device having a cylinderpiston arrangement with a hydraulic pressure chamber, the piston of which can be displaced by an electromechanical actuator such that a pre-defined desired pressure value can be adjusted, a position of the pressure supply device being detected, and an actual pressure (Pv, act) of the pressure supply device being determined by a measurement device.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: February 14, 2017
    Assignee: CONTINENTAL TEVES AG & CO. OHG
    Inventor: Jürgen Böhm
  • Patent number: 9545906
    Abstract: The invention relates to a method, wherein an electrically operated actuator of a vehicle brake system is controlled in accordance with a braking demand of a vehicle control system, such as occurs in electronic stability control. According to the invention, a supply voltage of the vehicle electrical system applied to the electrically operated actuator is increased if at least one specified condition is met. Thus, the pressure build-up by a hydraulic pump can e.g. be accelerated during emergency braking.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: January 17, 2017
    Assignee: Continental Teves AG & Co. oHG
    Inventors: Tim Zimmermann, Thomas Bauer, Dieter Maus
  • Patent number: 9527484
    Abstract: Methods and systems for controlling regenerative braking in a vehicle having a regenerative braking system are provided. Values of one or more dynamic variables are obtained during operation of the vehicle. A maximum regenerative braking torque is calculated using the dynamic variable values. Regenerative braking torque is provided up to the maximum regenerative braking torque.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: December 27, 2016
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Monika A. Minarcin, Jon K. Logan, Eric M. Rask
  • Patent number: 9518625
    Abstract: To be able to selectively influence the braking effect of a friction brake (1) in a certain operating point to be able to reliably and easily achieve regulation or control of a required setpoint braking effect of the friction brake (1), it is proposed to determine an actuation energy (EE) of the electric motor (21) for the braking operation, and to determine the ascertained actuation energy (EE) as the actual actuation energy (EE_actual) in the predefined setpoint position of the friction brake (1), and to determine a setpoint actuation energy (EE_setpoint) with respect to the setpoint position or with respect to a setpoint braking effect from known data concerning the friction brake (1), and to compensate for a deviation between the actual actuation energy (EE_actual) and the setpoint actuation energy (EE_setpoint) by actuating the friction brake (1).
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: December 13, 2016
    Assignee: VE VIENNA ENGINEERING FORSCHUNGS-UND ENTWICKLUNGS GMBH
    Inventor: Michael Putz
  • Patent number: 9469284
    Abstract: A vehicle anti-lock braking system includes at least one automatic hydraulic brake adjuster (AHBA) coupled in flow communication with at least one braking mechanism configured to interact with a vehicle wheel. The system also includes at least one pressure regulating device coupled in flow communication with the at least one AHBA. The system further includes at least one wheel speed sensor coupled to the vehicle wheel. The system also includes a control unit communicatively coupled to the at least one pressure regulating device and the at least one wheel speed sensor. The control unit is configured to actuate the at least one pressure regulating device at least partially as a function of the rotational speed of the vehicle wheel.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: October 18, 2016
    Assignee: Donelson Brake Systems, LLC
    Inventors: Damian Paul Kubick, Terrence Christopher Donelson, Michael James Donelson
  • Patent number: 9428168
    Abstract: Provided is a brake device that can increase energy efficiency. The present invention is provided with: a master cylinder (5) that generates fluid pressure alongside the operation of a brake by a driver; and a booster device that reduces the force of operation of the brake by the driver by means of an energy source (fluid pressure unit 86)). In a predetermined brake operation region, the operation of the booster device is suppressed.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: August 30, 2016
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Ryohei Maruo, Masayuki Saito, Chiharu Nakazawa
  • Patent number: 9422054
    Abstract: An aircraft electromechanical braking system comprising a braking control unit 10 and at least one electromechanical brake 1, the brake 1 being fitted with at least one electromechanical actuator 4 having a pusher 6 suitable for being moved by means of an electric motor 7. The actuator 4 also has a blocking member 8 for blocking the pusher 6 in position. The control unit 10 is adapted to cause the braking system to operate in an additional braking mode referred to as “combined” mode, in which the motor 7 is activated to bring the pusher 6 into a position in which it exerts a given holding force, and then the blocking member 8 is activated, while activation of the motor 7 is maintained.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: August 23, 2016
    Assignee: MESSIER-BUGATTI-DOWTY
    Inventors: Dominique Onfroy, Thomas Lepage, Franck Selles, Frédéeric Ragot
  • Patent number: 9381904
    Abstract: A method and system are provided for controlling overspeeding of a vehicle carrying an internal combustion engine having one or more exhaust brake devices controllable to apply braking torque to the engine. The system may be operable determine a desired speed of the vehicle, to determine a road speed of the vehicle, and if the road speed of the vehicle exceeds the desired speed of the vehicle by more than a threshold speed, to determine a target brake torque required to reduce the road speed of the vehicle speed to the desired speed of the vehicle, and to then control the one or more exhaust brake devices to apply the target brake torque to the engine to thereby control the road speed of the vehicle to the desired speed of the vehicle.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: July 5, 2016
    Assignee: Allison Transmission, Inc.
    Inventors: Steven Andrasko, John Kresse, Kevin Kluemper, Brett Caldwell
  • Patent number: 9340187
    Abstract: A method, and related device, for operating a brake device of a vehicle with brake slip regulation (ABS) on roadways with different friction coefficients on different sides, as a result of which a braking yaw moment is imparted to the vehicle during braking, characterized in that, on at least one axle of the vehicle, an absolute brake pressure difference between the brake pressure at the wheel with the higher friction coefficient and the brake pressure at the wheel with the lower friction coefficient is adapted as a function of a steer input, intended to produce a yaw moment acting counter to the braking yaw moment, by the driver and/or by an automatically intervening auxiliary steering system.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: May 17, 2016
    Assignee: KNORR-BREMSE SYSTEME FUER NUTZFAHRZEUGE GMBH
    Inventors: Falk Hecker, Marco Schmidt