Including A Stroke Sensor Patents (Class 303/113.4)
  • Patent number: 10336317
    Abstract: Methods, systems, and vehicles are provided for controlling lift for vehicles. In accordance with one embodiment, a vehicle includes a body, one or more sensors, and a processor. The one or more sensors are configured to measure values pertaining to one or more parameter values for a vehicle during operation of the vehicle. The processor is coupled to the one or more sensors, and is configured to at least facilitate determining whether an unplanned lift of the body of the vehicle is likely using the parameters, and implementing one or more control measures when it is determined that the unplanned lift of the body of the vehicle is likely.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: July 2, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jason D. Fahland, Joshua R. Auden, David Dominguez, Samantha J. Bray, Eric E. Krueger
  • Patent number: 10336304
    Abstract: A brake system for a vehicle, may include a brake input device to apply a brake input of a driver; a brake actuator generating braking hydraulic pressure; wheel cylinders generating braking force for each vehicle wheel by the braking hydraulic pressure generated by the brake actuator; and a hydraulic pressure supply line connecting the brake actuator and the wheel cylinders, wherein the brake actuator includes a main pump device by which braking force is applied, and a sub control device configured for adjusting the braking force applied by the main pump device.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: July 2, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Joung Hee Lee, Jong Yun Jeong, Dong Yoon Hyun
  • Patent number: 10315640
    Abstract: A vehicle includes a brake pedal, a master cylinder, a braking circuit with a wheel cylinder, and a brake pressure generator with strokable piston. A pedal feel simulator is coupled to the master cylinder through a switchable valve, the simulator providing a reaction force. An isolation valve closes to isolate the braking circuit from the master cylinder and the simulator circuit. A controller is programmed to place the simulator in fluid communication with an output of the brake pressure generator, and to stroke the piston at a designated diagnostic time. The resulting pressure increase is observed, and the controller checks whether the pressure-increase to piston-stroke relationship is within a predetermined acceptable range for continued operation of a brake-by-wire mode in which the master cylinder is coupled to the simulator circuit and decoupled from the braking circuit.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: June 11, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Rosalin Irwan, Quingyuan Li, Wenguang Zhou
  • Patent number: 10315639
    Abstract: A leakage inspecting method of an electric brake system, which includes a master cylinder connected to a reservoir, a simulation device having one side connected to the master cylinder to provide a reaction force according to the pedal effort of the brake pedal, a simulation valve provided at a flow path connected to the master cylinder or a flow path connected to the reservoir, a hydraulic pressure supply device operated by an electrical signal of a pedal displacement sensor sensing a displacement of the brake pedal and configured to generate hydraulic pressure, and a hydraulic pressure control unit, comprising: executing an inspection mode for inspecting for a leak of the simulation valve and a sealing member provided inside a chamber of the master cylinder by providing an inspection valve at a flow path connecting the master cylinder to the reservoir, wherein the inspection mode includes: (a1) closing a cut valve provided at a flow path connecting the master cylinder to the hydraulic pressure control unit
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: June 11, 2019
    Assignee: MANDO CORPORATION
    Inventors: Seong-Ho Choi, In-Wook Jeon, Hyun-Ho Kim
  • Patent number: 10279788
    Abstract: A method for adjusting brake pressures on pneumatically operated wheel brakes of a motor vehicle includes adjusting, in a normal braking mode, the brake pressures depending on a driver brake request; and adjusting, by a control unit in a pressure control mode, the brake pressures at the respective wheel brakes during reception of an external brake request, which is independent of the driver brake request and defined for the control unit as an external target deceleration value, as a function of a resulting target deceleration value of the vehicle deceleration. The control unit determines the resulting target deceleration value by linking the external target deceleration value according to the external brake request and a value corresponding to the driver brake request. A braking power index is determined which quantitatively represents the braking effect of the wheel brakes, and is provided to be taken into account in pressure control mode.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: May 7, 2019
    Assignee: WABCO GMBH
    Inventor: Horst Eckert
  • Patent number: 10239510
    Abstract: A method of controlling a brake system of a motor vehicle having a braking assistance function. The brake system including a master brake cylinder, activated with a brake pedal. A distance s between a valve piston connected to the brake pedal, and a transmission element, connected to a pressure piston of the master brake cylinder is sensed and the brake system is controlled as a function of the sensed distance s. Within the scope of this monitoring process, brake pedal release is detected even when the pressure-generating unit is activated. In addition, despite an active braking assistance function, consistent interplay occurs between activation by the driver and assistance-side activation of the brakes given satisfactory pedal feedback.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: March 26, 2019
    Assignee: Ford Global Technologies, LLC
    Inventor: Thomas Svensson
  • Patent number: 10239505
    Abstract: A method for controlling a vehicle deceleration in a vehicle with an ABS brake system. The method includes detecting a target vehicle deceleration specified by a driver; defining a maximum deceleration and a minimum deceleration, each depending on the detected target vehicle deceleration; detecting an actual vehicle deceleration; and controlling a braking pressure on wheel brakes of a first vehicle axle and a second vehicle axle depending on the detected actual vehicle deceleration by actuation of ABS brake valves. Controlling the braking pressure by the actuation of the ABS brake valves comprises controlling the braking pressure on the wheel brakes of the second vehicle axle depending on a detected actual differential slip if the actual vehicle deceleration is less than the maximum deceleration and greater than the minimum deceleration, wherein the actual differential slip indicates the difference in a rotational behavior of the first vehicle axle.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: March 26, 2019
    Assignee: WABCO GMBH
    Inventors: Andreas Boethel, Horst Eckert, Torsten Wallbaum
  • Patent number: 10220822
    Abstract: A brake control device for at least four fluidically actuatable, especially hydraulically actuatable, wheel brakes of a vehicle brake system, which device includes at least one input pressure connection, a wheel-specific output pressure connection for every wheel brake, a pressure regulating valve array for setting wheel-specific brake pressures at the output pressure connections and a pressure source the brake control device having a wheel specific input pressure connection for every wheel brake.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: March 5, 2019
    Assignee: Continental Teves AG & Co. oHG
    Inventors: Paul Linhoff, Andreas Heise
  • Patent number: 10214188
    Abstract: A control apparatus for hydraulic components of a braking system of a vehicle, having a control application device that is designed to establish by application of control to the hydraulic components, in consideration of the braking request, at least one brake pressure in at least one wheel brake cylinder in such a way that the braking request is satisfiable; and to execute an antilock braking function at the at least one wheel brake cylinder, the control application device additionally being designed to ascertain whether at least one furnished actual value with regard to a displacement travel (s) of a brake actuation element of the vehicle out of its initial position, and/or with regard to a simulator volume shifted out of a brake master cylinder of the vehicle into a linked simulator, lies within at least one predefined extreme value range.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: February 26, 2019
    Assignee: ROBERT BOSCH GMBH
    Inventors: Rolf Ellwein, Urs Bauer, Bertram Foitzik, Otmar Bussmann, Matthias Kistner, Robert Kaster
  • Patent number: 10207691
    Abstract: A brake apparatus includes a brake operation member, a state detection unit, a cylinder, a first portion, an operation rod, a stepped piston, first, second, and third seal members, first and second pressure chambers, a hydraulic source, and first and second oil passages. The brake apparatus also includes a fluid amount control unit. The fluid amount control unit is configured to control an amount of the brake fluid to be supplied to the first pressure chamber and the second pressure chamber. The fluid amount control unit is also configured to increase the amount of the brake fluid to be supplied to the second pressure chamber when the detected state is equal to a preset pressure increase request.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: February 19, 2019
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Chiharu Nakazawa, Ryohei Maruo
  • Patent number: 10124778
    Abstract: A stroke sensor assembly for a vehicle braking system may include a stroke sensor, a sensor circuit board, and a sensor housing. The stroke sensor may be operable to detect a position of a piston within a hydraulic block. The sensor circuit board may be in communication with the stroke sensor and may be electrically connected to a plurality of terminals. The sensor housing may surround the stroke sensor and the sensor circuit board. The sensor housing may include a single mounting aperture for mounting the sensor housing to the hydraulic block. The sensor housing may include an integrally formed female electrical connector that at least partially houses the terminals. The female electrical connector may include an inlet opening through which a male electrical connector is received for electrical connection with the terminals. The female electrical connector may include one or more ramped surfaces defining the inlet opening.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: November 13, 2018
    Assignee: VEONEER US, INC.
    Inventors: Joshua Forwerck, Yoshiteru Matsunaga, Motoyasu Nakamura
  • Patent number: 10065613
    Abstract: A brake system for vehicles, in particular motor vehicles, including a master brake cylinder, in particular a tandem master brake cylinder, a brake booster which is connected upstream of the master brake cylinder, in particular at least four hydraulically actuatable wheel brakes, and a first electrohydraulic brake control device which includes a first pressure regulating valve arrangement for adjusting wheel-specific brake pressures, in particular an electrically actuatable pressure source, and a wheel-specific outlet pressure connection for each wheel brake, wherein the brake booster is designed to be electrically actuatable, and a second electrohydraulic brake control device is provided which includes a second pressure regulating valve arrangement, in particular for adjusting wheel-specific brake pressures, and which is connected in series between the first brake control device and the wheel brakes.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: September 4, 2018
    Assignee: Continental Teves AG & Co. oHG
    Inventors: Paul Linhoff, Alfred Eckert
  • Patent number: 9988031
    Abstract: A hydraulic braking system having: at least one wheel brake cylinder; a primary brake pressure generator that is disconnectably hydraulically coupled to the at least one wheel brake cylinder and is embodied to impinge upon the at least one wheel brake cylinder with pressure by way of a hydraulic fluid; a brake master cylinder that has at least one first pressure chamber and to which at least one wheel brake cylinder is hydraulically coupled; and a secondary brake pressure generator that is coupled to the first pressure chamber of the brake master cylinder and is embodied to impinge upon the first pressure chamber of the brake master cylinder with pressure, the secondary brake pressure generator being controllable independently of the primary brake pressure generator. Also disclosed is a related method.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: June 5, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Urs Bauer, Michael Kunz, Ryan Kuhlman
  • Patent number: 9964128
    Abstract: A master brake cylinder system having a master brake cylinder housing having at least one first pressure chamber and a second pressure chamber, a rod piston at least partially displaceable into the first pressure chamber, a floating piston situated between the first pressure chamber and second pressure chamber, and a simulator device having a simulator piston, which is at least partially displaceable into the simulator chamber counter to a spring force of at least one simulator spring present in a simulator chamber, the simulator piston of the simulator device being situated as to the second pressure chamber so that the simulator piston is displaceable at least partially into the simulator chamber, using a pressure present in the second pressure chamber against the spring force of the at least one simulator spring. In addition, also described is a brake system for a vehicle having a master brake cylinder system.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: May 8, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventor: Matthias Kistner
  • Patent number: 9944265
    Abstract: A method for controlling a brake pressure booster with hydraulic brake boosting wherein the activation of an additional pressure source takes place upon exceeding a specified brake cylinder pressure threshold value. The threshold value lying between 50% and 100%, preferably between 70% and 80%, of a pressure limit value, from which the operating travel/brake pressure curve without additional brake pressure assistance has a knee point. Further upon exceeding a specified piston rod activation travel limit value, which lies at 20% to 100% of the available travel, preferably at 40% to 60% of the available travel. Furthermore, the speed of the vehicle, its lateral deceleration and its longitudinal deceleration can be used as criteria. Deactivation takes place on falling below a specified piston rod deactivation travel limit value. Based on selection of activation/deactivation criteria additional brake pressure boosting can be operational during braking maneuvers.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: April 17, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Thomas Svensson, Thomas Eichhorn
  • Patent number: 9908416
    Abstract: A method for blending a generator braking torque of a generator of a recuperative brake system having two brake circuits, including: controlling one of the at least two brake circuits of the brake system in a blending mode, a hydraulic connection between a master brake cylinder of the brake system and a storage volume of the brake circuit controlled in the blending mode being at least temporarily enabled, so that brake fluid is transferred from the master brake cylinder into the storage volume of the brake circuit controlled in the blending mode; and controlling another of the at least two brake circuits in a non-blending mode, a hydraulic connection between the master brake cylinder and a storage volume of the brake circuit controlled in the non-blending mode being interrupted during the non-blending mode. Also described is a control device for a recuperative brake system having two brake circuits.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: March 6, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Stefan Strengert, Michael Kunz
  • Patent number: 9878697
    Abstract: The invention relates to an actuating device for a vehicle brake system, comprising a first piston-cylinder unit, the at least one working space of which is to be connected to at least one wheel brake of the vehicle via at least one hydraulic line, further comprising an electromechanical drive device and an actuating device, in particular a brake pedal, and to a method for operating an actuating device for a vehicle brake system. According to the invention, the actuating device comprises a further piston-cylinder unit (6, 41), the piston (6) of which can be actuated by means of the actuating device (10, 5) and is connected to a piston of the first piston-cylinder unit (4) via a connecting device.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: January 30, 2018
    Assignee: IPGATE AG
    Inventors: Heinz Leiber, Valentin Unterfrauner
  • Patent number: 9776607
    Abstract: A brake system for a motor vehicle comprises a first brake set and second brake set. A first hydraulic brake circuit is connected to the first brake set and a second hydraulic brake circuit is connected to the second brake set. Further, a first control module is coupled to the first hydraulic brake circuit and the second hydraulic brake circuit. The first control module is configured to control fluid pressure within both the first hydraulic brake circuit and the second hydraulic brake circuit. A second control module is also coupled to the first hydraulic brake circuit and the second hydraulic brake circuit. The second control module is configured to control fluid pressure within both the first hydraulic brake circuit and the second hydraulic brake circuit independent of the first control module. The first control module is disposed in series with the second control module in the first and the second hydraulic brake circuits.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: October 3, 2017
    Assignee: Continental Automotive Systems, Inc.
    Inventors: Martin Brenn, Geoffrey Burke Bauer, Jeremy J McClain
  • Patent number: 9751511
    Abstract: An electric brake system includes a reservoir, a master cylinder including first and second hydraulic ports, a simulation device providing reaction force in response to foot force applied to a brake pedal, a hydraulic-pressure supply device, a hydraulic-pressure control unit, and an electronic control unit (ECU). The hydraulic-pressure supply device converts rotational force of a motor into rectilinear motion upon receiving an electric signal from the pedal displacement sensor, and moves a double-acting piston designed to perform reciprocating motion within a hydraulic cylinder. The double-acting piston moves in both directions to generate hydraulic pressure by pressing a first hydraulic chamber provided in one end thereof, and moves in another direction to generate hydraulic pressure by pressing a second hydraulic chamber provided in the other end thereof.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: September 5, 2017
    Assignee: MANDO CORPORATION
    Inventor: I-Jin Yang
  • Patent number: 9707950
    Abstract: Linear brake pedal travel measurements are provided using a diagnostic unit with at least two linear measurement devices. The at least two linear measurement devices are offset in at least a vertical direction from a face of the brake pedal lever, and therefore directly measure non-linear pedal travel values. Thus, in certain embodiments, the system is further configured to convert the non-linear pedal travel measurements received from each of the at least two linear measurement devices to a linear brake pedal travel value corresponding to an operated position of the brake pedal lever. The resulting linear brake pedal travel information may then be used to evaluate brake pedal performance or measure customer brake feeling in an objective and reproducible way.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: July 18, 2017
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Matthew Wessner, Cristian Zucchetti
  • Patent number: 9688259
    Abstract: A boost arrangement for pressurizing a master cylinder of a vehicle braking system of a vehicle includes a housing, a primary piston and a secondary piston. The housing defines a boost chamber filled with brake fluid. The primary piston is disposed in the boost chamber and defines an opening extending therethrough. The secondary piston has an end extending into the opening defined by the primary piston.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: June 27, 2017
    Assignee: AUTOLIV ASP, INC.
    Inventors: Suat Ali Ozsoylu, Karen Ann Boswell
  • Patent number: 9669814
    Abstract: A sub master cylinder includes a body formed with a chamber in which oil is stored; a first sub piston having one end which is secured to one end of the body and the other end which extends toward the other end of the body and is disposed to cross the chamber; and a second sub piston disposed between an inner surface of the body and an outer surface of the first sub piston to be moved in the chamber.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: June 6, 2017
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventor: Chang Hoe Koo
  • Patent number: 9630598
    Abstract: A method for operating a hydraulic brake system of a motor vehicle, comprising a pressure generating device used to build up additional brake pressure in a master brake cylinder or in addition to a master brake cylinder and in opposition to further pedal actuation wherein the additional pressure is a function of the pedal actuation travel distance. A method that reduces the limitations of a braking system's physical parameters on the build-up of additional braking pressure.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: April 25, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Thomas Svensson, Ian Moore, Rudolf Daniels
  • Patent number: 9580058
    Abstract: A method of determining the integrity of an electric or hydraulic energy source of a braking control system. The energy source is charged or discharged, and two or more measurements of voltage or hydraulic pressure are taken from the braking control system. A difference between at least two of the measurements is determined in order to determine a change or rate of change in voltage or hydraulic pressure caused by the charging or discharging of the energy source. The integrity of the energy source is determined by checking whether the change or rate of change in voltage or hydraulic pressure meets predetermined criteria. The check may comprise comparing the change or rate of change of the voltage or hydraulic pressure to a threshold—for instance checking whether the change exceeds a threshold, or falls between an upper threshold and a lower threshold.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: February 28, 2017
    Assignee: AIRBUS OPERATIONS LIMITED
    Inventors: George Howell, Matthieu Della Nave
  • Patent number: 9566969
    Abstract: The invention relates to a spring-force brake system having a brake operating unit, having at least one sensor for detecting a driver braking demand upon operation of the brake operating unit by the driver, having at least one actuation unit for setting and regulating a braking force. For this purpose, it is provided according to the invention that at least one primary electronic control and regulating unit is provided which is connected at the signal input side to at least one sensor and which activates the actuation unit as a function of or on the basis of the signals of the sensor, and that at least one secondary control and regulating unit is provided which is connected at the signal input side to at least one sensor and which activates the actuation unit on demand on the basis of or as a function of signals of the sensor.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 14, 2017
    Assignee: Continental Teves AG & Co. oHG
    Inventor: Paul Linhoff
  • Patent number: 9561786
    Abstract: A method according to an exemplary aspect of the present disclosure includes, among other things, adjusting the feel of a brake pedal based on a comparison between a predetermined level of resistance to an input braking force and a measured input braking force.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: February 7, 2017
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC.
    Inventors: Mark Allen Shand, Daniel A. Gabor
  • Patent number: 9555789
    Abstract: An electronic brake system may be capable of performing braking operation according to a pedal effort of a driver even when the brake system operates abnormally as well as simplifying a configuration thereof by minimizing the number of valves for controlling a flow of oil pressure and precisely controlling pressure therein.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: January 31, 2017
    Assignee: MANDO CORPORATION
    Inventors: In-Wook Jeon, Seong-Ho Choi
  • Patent number: 9545904
    Abstract: The braking control device for a vehicle is adapted to be used for a vehicle brake device and it is an object of the present invention to prevent an operator of the vehicle from feeling of any an unpleasant feeling by reducing an ineffective operating amount by which no braking force increases in response to the increase of the brake operating amount. The braking control device includes a controlling portion for changing a servo performance to an ineffective operating amount reducing servo performance which is closer to the increase ratio of the hydraulic pressure braking force relative to the increase of the brake operating amount after the input piston has been in contact with the output piston when the brake operating amount reaches to the servo performance change operating amount which is smaller than the assisting limit operating amount.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: January 17, 2017
    Assignee: ADVICS CO., LTD.
    Inventors: Yoshio Masuda, Hiroaki Niino
  • Patent number: 9533665
    Abstract: A master cylinder includes pressurizing chambers and atmospheric pressure chambers which are in communication with a reservoir provided upstream. The pressurizing chambers of the master cylinder are connected to a brake fluid pressure control valve device through master pressure pipes provided with master cut valves. The atmospheric pressure chambers of the master cylinder bypass the master cut valves and are connected to the brake fluid pressure control valve device through bypass pipes provided with check valves. A pump constituting a brake fluid pressurizing section of the brake hydraulic control valve device suctions the brake fluid from the reservoir preferentially through the bypass pipes provided with the check valves and pressurizes the brake fluid to supply a brake fluid pressure to brake fluid pressure adjust sections.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: January 3, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazunori Nimura, Hiroshi Nakaoka
  • Patent number: 9499151
    Abstract: Provided is a brake system for a vehicle including an input side hydraulic system, an output side hydraulic system, a first and a second shutoff valves to shut off flowing of the brake fluid between the input side hydraulic system and the output side hydraulic system when closed, a first and a second out-valves through which the brake fluid flows into a reservoir unit when opened, and a control unit to control a motor cylinder device of the output side hydraulic system to generate the brake fluid pressure according to the operational amount of a brake pedal. The control unit opens one or both of the first and the second shutoff valves and the first and the second out-valves when output characteristic of the brake fluid pressure generated by the motor cylinder device shifts from basic characteristic.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: November 22, 2016
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takashi Shimada, Soichiro Ueura
  • Patent number: 9499147
    Abstract: The vehicle brake system includes a cylinder, an output piston disposed in the cylinder, an input piston disposed in the cylinder but separating from the output piston and defining a separation chamber therebetween, a brake pedal connected to the input piston, a reaction force generating device for generating an elastic reaction force, a separation lock valve for controlling the communication between the separation chamber and the reaction force generating device, a fade state judging portion to judge whether the friction brake device is in a fade state or not and a friction braking force control portion for changing the mode to the fade state when the fade state judging portion judged that the friction brake device is in the fade state, wherein a desired friction braking force can be assured even under the brake fade state.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: November 22, 2016
    Assignee: ADVICS CO., LTD.
    Inventors: Yosuke Yamasoe, Hiroaki Niino, Yoshio Masuda, Takashi Kurokawa, Kiyoyuki Uchida, Masaaki Komazawa, Akira Sakai, Yasuji Mizutani, Yusuke Kamiya
  • Patent number: 9415758
    Abstract: The invention relates to a method for providing haptic information to the driver of a motor vehicle, equipped with a brake-by-wire brake system, about the operating state of the brake system, in which method the brake pedal characteristic is generated by a pedal travel simulator, in the form of a functional relationship between the brake pedal opposing force and the brake pedal travel, and is modified as a function of an operating state. In order to provide the driver with the haptic information channel via which electronically controlled information can be communicated to the driver during braking, without the impression of a defect arising, the invention proposes that a basic brake pedal characteristic is generated by a passive simulator spring which assigns pedal travel, on which pedal return travel transporting the haptic information is superimposed, to a given pedal force in an unchanging, constant relationship.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: August 16, 2016
    Assignee: Continental Teves AG & Co. oHG
    Inventors: Stefan Drumm, Steffen Linkenbach, Marco Besier, Jürgen Böhm, Georg Roll
  • Patent number: 9403518
    Abstract: A brake system for a vehicle includes: a main brake cylinder with a floating piston able to be shifted at least partially into the main brake cylinder, and a brake medium storage device into which a specified storage volume of a brake medium is able to be transferred without counterpressure, the brake medium storage device being hydraulically connected via an electrically controllable first valve to the main brake cylinder in such a way that, in response to a shifting of the floating piston partially into the main brake cylinder by a shift travel that is below a shift travel limit corresponding to the storage volume, a brake medium volume less than the specified storage volume is transferred without counterpressure from the main brake cylinder into the brake medium storage device.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: August 2, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Stefan Strengert, Michael Kunz
  • Patent number: 9399452
    Abstract: A method and system is provided for controlling an electrohydraulic braking system for a motor vehicle having an antilock braking control function and an electrically controllable pressure generating device having a cylinder-piston arrangement having a hydraulic pressure chamber and a piston displaceable by an electromechanical actuator so that a predetermined pressure can be set in the chamber, and having a number of hydraulically wheel brakes connected to the hydraulic pressure chamber by an electrically actuatable inlet valve and to a pressure medium reservoir via an electrically actuatable outlet valve. The cylinder-piston arrangement is actuated in case of antilock controlling at all wheel brakes for setting an individual wheel target pressure at each wheel brake, such that the pressure in the hydraulic pressure chamber is set to the greatest wheel target pressure.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: July 26, 2016
    Assignee: CONTINENTAL TEVES AG & CO. OHG
    Inventors: Georg Roll, Jurgen Bohm, Jens Jager
  • Patent number: 9393937
    Abstract: A method for operating a braking system of a vehicle, particularly of a motor vehicle, is described in which an automatic braking process is triggered by the exceeding of a specifiable threshold value by a rate of change conditioned upon the operation of a brake pedal. It is provided, in this context, that the threshold value is specified/varied by the driver in an initialization operation of the braking system. Also described is a related braking system.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: July 19, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventor: Stefan Epple
  • Patent number: 9376097
    Abstract: An object of the invention is to prevent abnormal noise from being generated when the pressure of brake fluid supplied to a brake caliper is reduced. A vehicle brake device includes first and second hydraulic brakes generating a hydraulic brake force and a regenerative brake generating a regenerative brake force and divides a braking force into the hydraulic brake force and the regenerative brake force. The vehicle brake device includes a regulating valve that is provided between the first and second hydraulic brakes and continuously regulates the flow rate of brake fluid flowing to the second hydraulic brake from the first hydraulic brake, and a pressure reducing valve that reduces the pressure of the brake fluid supplied to the second hydraulic brake. An opening of the regulating valve is continuously increased and the pressure reducing valve is opened, when the hydraulic brake force of the first hydraulic brake is reduced.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: June 28, 2016
    Assignee: Bosch Corporation
    Inventors: Motomu Hakiai, Yoshiyasu Takasaki
  • Patent number: 9321436
    Abstract: A “brake-by wire” brake system for motor vehicles, with a brake master cylinder which can be actuated by a brake pedal and has a housing and a piston, which is arranged displaceably in the housing and, together with the housing, delimits a pressure space. The piston of the brake master cylinder is designed as a stepped piston with at least two hydraulic active surfaces A1, A2 of differing size, wherein a first, small active surface A1 is assigned to the pressure space, and a second, large active surface A2 is assigned to a filling space, and, after a closing travel has been overcome, the second, large hydraulic active surface A2 is effective and the active surface A2, A1 are switched over in dependence on a hydraulic pressure in the pressure space and on the pedal force, respectively.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: April 26, 2016
    Assignee: Continental Teves AG & Co. oHG
    Inventor: Lothar Schiel
  • Patent number: 9296368
    Abstract: Methods, systems, and vehicles are provided for determining an effective brake pedal position for a vehicle. A determination is made as to whether automatic braking is occurring for a vehicle. If the automatic braking is occurring, a measure of braking is determined for the vehicle. The effective pedal position of the brake pedal is determined to be a position of the brake pedal that would be expected to be required to attain the measure of braking if automatic braking were not occurring.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: March 29, 2016
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Patrick J. O'Leary, Bret J. Keller, Barbara A. Shuler, Eric E. Krueger
  • Patent number: 9260091
    Abstract: A system and method for conserving vacuum within a vehicle is described. In one example, vacuum is conserved via limiting volume expansion of a brake booster working chamber.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: February 16, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Ralph Wayne Cunningham, Ross Dykstra Pursifull
  • Patent number: 9254827
    Abstract: The invention describes a method for operating a controllable electromechanical brake booster and the corresponding brake booster which, via a coupling element between the brake booster and pedal rod, is capable of applying a force in opposition to the pedal activation force of a driver, and can therefore be operated as a pedal simulator. For this purpose, a pedal opposing force can be set by a characteristic curve as a function of a pedal position which is predefined by the driver, and can give the driver a pedal sensation even if there is no reaction of, for example, a conventional brake system. In a further operating mode, the brake booster can be operated in its original form.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: February 9, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Reinhard Weiberle, Timo Jahnz
  • Patent number: 9227609
    Abstract: A hydraulic assembly for a vehicle brake system comprising at least two brake circuits and wheel brakes associated with the brake circuits. The hydraulic assembly comprises a pressure generator for generating a central hydraulic pressure for the brake circuits independently of the driver at least in the case of service braking initiated by the driver. Furthermore, at least one pressure adjusting device is provided for adjusting for each individual brake circuit the central hydraulic pressure that is generated by the pressure generator independently of the driver.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: January 5, 2016
    Assignee: Lucas Automotive GmbH
    Inventors: Leo Gilles, Boris Koeth
  • Patent number: 9205819
    Abstract: An electronic control device for a pressure controller, by way of which solenoid valves for pressure control are actuated with current via an actuating electronic system, and having a pump assembly is actuated as a function of a pressure request, which generates a volumetric flow with a periodically fluctuating amplitude. The wheel brake circuit isolating valve, during an active pressure build-up, discharging part of the delivery volume into a reservoir volume, at least in the case of a control operation which performs an intervention for driving stability which is not critical to safety, if the pressure which is built up by the assembly is higher than the pressure which is to be set, the electric coil current for the actuation of the isolating valve is modulated and the periodic actuation being interrupted at least when the control device has to carry out an intervention for driving stability which is critical to safety.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: December 8, 2015
    Assignee: CONTINENTAL TEVES AG & CO. OHG
    Inventors: Robert Schmidt, Joachim Bohn, Michael Hitzel
  • Patent number: 9145121
    Abstract: A method for monitoring a brake system for motor vehicles. The system can be actuated both by a vehicle driver and independently of the vehicle driver in what is known as a brake-by-wire mode. The hydraulic actuation device can be actuated by means of a brake pedal and has a main brake cylinder to which wheel brakes are connected, at least two brake circuits, a simulation device, which comprises at least one elastic element and gives the vehicle driver a comfortable pedal feeling, an electrically controllable pressure-providing device, which is formed by a cylinder/piston assembly, the piston of which can be actuated by an electromagnetic actuator, wherein the first measurement variable (PDBE) characterizing a position of the piston is detected. The detected measurement value of the first and second measurement variable (SDBE, PDBE) are compared to a predetermined characteristic map of the first and second measurement variables in order to monitor a functional status of the brake system.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: September 29, 2015
    Assignee: CONTINENTAL TEVES AG & CO. OHG
    Inventors: Johann Jungbecker, Steffen Linkenbach, Stefan A. Drumm, Marco Besier, Josko Kurbasa, Jochen Führer
  • Patent number: 9114797
    Abstract: An engine control apparatus includes a first operation member and a second operation member for braking a front wheel and a rear wheel of a saddle-type vehicle, and an engine controller that automatically stops and restarts an engine mounted in the saddle-type vehicle in response to the operational state of the first operation member and the second operation member. When a prescribed amount of time has passed while the first operation member and the second operation member are both in an operated state, the engine controller automatically stops the engine; when the first operation member and the second operation member are both released, the engine controller restarts the engine; and when either one of the first operation member and the second operation member is operated after the engine has automatically been stopped, the engine controller allows the engine to continue in the automatically stopped state.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: August 25, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventors: Toshifumi Osawa, Yusuke Takaishi, Koji Inose, Naoki Ikeda, Junichi Sakamoto, Junya Niwa
  • Patent number: 9114785
    Abstract: Braking system with master cylinder (100), decoupled from the brake pedal and hydraulic brake booster (200), comprising a boost chamber (206) in which the rear of the piston (110) of the master cylinder (100) is inserted, supplied in a controlled manner by a high-pressure unit (300), supplying brake fluid under high pressure on command to the boost chamber in order to act on the piston (110) of the master cylinder (100), and an actuator chamber (209) receiving an actuator piston (220) connected to the control rod (230) of the brake pedal. A controlled hydraulic link (320, 321) connects the boost chamber (206) and the actuator chamber (209) and a further controlled hydraulic link (310, 311) connects the actuator chamber (209) to the chamber of a brake simulator (270).
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: August 25, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Komi Sokou, Roman Winkler, Bastien Cagnac, Chris Anderson, Raynald Sprocq
  • Patent number: 9085288
    Abstract: A method of operating a brake assistance system in a vehicle is disclosed. The method includes determining a braking operation as an emergency braking situation, which in turn includes sensing a braking pressure applied to a brake pedal, determining a braking pressure gradient of the braking pressure, and evaluating at least one factor of the driving situation, checking whether that factor indicates an emergency braking situation. If that factor indicates an emergency braking situation, adjustments to a braking pressure threshold value and a braking pressure gradient threshold value are carried out, reducing those threshold values by a predetermined amount. Thereafter, if both the braking pressure and the braking pressure gradient exceed the adjusted braking pressure threshold value and the adjusted braking pressure gradient threshold value, respectively, the braking operation is identified to be an emergency braking situation, accompanying activation of an emergency braking cycle.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: July 21, 2015
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventor: Thomas Svensson
  • Patent number: 9073528
    Abstract: Disclosed is brake system technology such as a modulator block and an electronic control brake system for vehicles having the same which suppresses residual frictional force generated due to contact between pads and a disc by moving a part of fluid at the wheel brake side to a residual frictional force control unit so as to retract pads from the disc, so that the hydraulic volume is reduced.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: July 7, 2015
    Assignee: MANDO CORPORATION
    Inventors: I Jin Yang, Hee Jun Kim
  • Patent number: 9039102
    Abstract: Systems and methods disclosed herein may be useful emergency braking systems for use in, for example, an aircraft. A system is disclosed that allows emergency braking without the need for a manually operated emergency brake. For example, a system is provided comprising a potentiometer in mechanical communication with a brake pedal, a first electronic switch in electrical communication with the potentiometer, a second electronic switch indicating a displacement of the brake pedal, wherein a brake control valve opens in response to the first electronic switch, and wherein a shutoff valve opens in response to the second electronic switch.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: May 26, 2015
    Assignee: GOODRICH CORPORATION
    Inventors: Eric D. Cahill, Paul R. Burte
  • Patent number: 9022486
    Abstract: In a vehicle brake device, when a brake pedal is depressed normally, high regeneration efficiency and high fuel efficiency can be achieved by positively utilizing the regenerative braking force, and early applying of basic hydraulic braking force can be achieved when the brake pedal is suddenly depressed. The vehicle brake device includes an operation force transmitting mechanism on a connecting member between the brake pedal and the master cylinder piston and having first and second rods and a spring member biasing the first and second rods in a direction separating both rods from each other. The operation force transmitting mechanism includes an inner space between both rods and a communication passage allowing communication of the inner space with the exterior. The communication passage restricts the outflow of fluid in the inner space upon an emergency brake pedal depression and allows the outflow thereof upon non-emergency brake pedal depression.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: May 5, 2015
    Assignee: Advics Co., Ltd.
    Inventor: Kazuya Maki
  • Patent number: 9016805
    Abstract: A vehicle brake system includes a brake pedal unit (BPU) coupled to a vehicle brake pedal and including an input piston connected to operate a pedal simulator during a normal braking mode, and coupled to actuate a pair of output pistons during a manual push through mode. The output pistons are operable to generate brake actuating pressure at first and second outputs of the BPU. A hydraulic pressure source for supplying fluid at a controlled boost pressure is included. The system further includes a hydraulic control unit (HCU) adapted to be hydraulically connected to the BPU and the hydraulic pressure source, the HCU including a slip control valve arrangement, and a switching base brake valve arrangement for switching the brake system between the normal braking mode wherein boost pressure from the pressure source is supplied to first and second vehicle brakes, and the manual push through mode wherein brake actuating pressure from the BPU is supplied to the first and second vehicle brakes.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: April 28, 2015
    Assignee: Kelsey-Hayes Company
    Inventor: Blaise J. Ganzel