With Failure Responsive Means Patents (Class 303/122)
  • Patent number: 10752232
    Abstract: Disclosed are an electronic parking brake (EPB) system and a method of controlling the same. The EPB system includes a motor, a first Hall sensor configured to sense a current flowing through the motor, a second Hall sensor configured to sense a current flowing through the motor, and a controller configured to determine the motor to have a failure when a magnetic change of the first Hall sensor and a magnetic change of the second Hall sensor do not match a preset pattern during an apply operation of the motor.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: August 25, 2020
    Assignee: MANDO CORPORATION
    Inventor: Jong Jin Choi
  • Patent number: 10661655
    Abstract: A method is indicated for operating a motor vehicle, as well as a motor vehicle, having an electric machine for the positive or negative acceleration of the motor vehicle as well as a mechanical brake device for reducing the vehicle speed of the motor vehicle. In a special brake operation mode, a deceleration demand (V) is detected, and a target rotational speed curve (nsoll) of the electric machine is determined in dependence on the deceleration demand (V). An actual rotational speed (nist) of the electric machine for reducing the vehicle speed of the motor vehicle is then adapted to the target rotational speed curve (nsoll) so determined.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: May 26, 2020
    Assignee: AUDI AG
    Inventor: Herbert Ernst
  • Patent number: 10583844
    Abstract: A vehicle dynamic control monitoring system includes an electronic display, a vehicle dynamic control system (VDC), a tire pressure monitoring system (TPMS) system and an electronic controller. The electronic display, the VDC and the TPMS are all installed to a vehicle and are all connected to the electronic controller. The electronic controller is configured such that in response to determining that at least one of the wheels has a tire pressure that is below a predetermined tire pressure range, a tire pressure warning signal is indicated by the electronic display, and in response to determining that at least one of the wheels has a tire pressure that is below the predetermined tire pressure range and the vehicle is moving above a predetermined vehicle speed, a VDC warning indicator is displayed on the electronic display indicating that the at least one VDC will operate with reduced effectiveness.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: March 10, 2020
    Assignee: Nissan North America, Inc.
    Inventors: Paul Robson, Scott Warnecke
  • Patent number: 10562510
    Abstract: A method for operating a vehicle brake system, including: classifying a fault signal, indicating a fault of an electronic actuating device of the brake system, the actuating device outputting a brake pressure for a brake of the vehicle in a normal operating mode and a pneumatic actuating device for outputting the brake pressure in a backup operating mode, as a fault signal of a first fault category if the fault is a fault in which a switchover from the electronic actuating device afflicted with the fault to the pneumatic actuating device leads to an improvement in the outputting of the brake pressure; and switching from the electronic actuating device to the pneumatic actuating device, to output the brake pressure using the pneumatic actuating device, if the fault signal is a fault signal of the first fault category. A related computer readable medium, apparatus and brake system are also described.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: February 18, 2020
    Assignee: KNORR-BREMSE SYSTEME FUER NUTZFAHRZEUGE GMBH
    Inventors: Dieter Woerner, Michael Herges, Friedbert Roether, Frank Schwab
  • Patent number: 10538229
    Abstract: The assembly comprises a body wherein there are defined a chamber, a supply valve adapted to connect the chamber to a pressure source or to the atmosphere, and a vent valve adapted to allow or prevent the connection of the chamber to the atmosphere. The valves are provided with control solenoids to which respective electronic switches are coupled. The assembly also comprises electronic control devices adapted to provide, as a function of the values of at least one input signal, logic control signals to the electronic switches so as to control, through the valves, the value of the pressure in the chamber. The control means comprise two processing and control devices independent of one another, both receiving the input signal and designed to execute strategies for controlling the pressure in the chamber, equivalent to one another.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: January 21, 2020
    Assignee: FAIVELEY TRANSPORT ITALIA S.P.A.
    Inventors: Roberto Tione, Andrea Cavazzin, Angelo Grasso
  • Patent number: 10196050
    Abstract: It is an object of the invention to provide a brake device capable of detecting a failure in each of components, by which booster control is performed, at an early stage even during vehicle running. The brake device is configured to discharge brake fluid into a communicating fluid path that connects a fluid path of a primary system and a fluid path of a secondary system, and to control a first communicating valve for restricting a flow of brake fluid from the communicating fluid path to the fluid path of the primary system and a second communicating valve for restricting a flow of brake fluid from the communicating fluid path to the fluid path of the secondary system in respective valve-closing directions, so as to check at least a state of the pump.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: February 5, 2019
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventor: Asahi Watanabe
  • Patent number: 10055900
    Abstract: Various examples of a controller and system for transmitting and indicating a fault in a combination vehicle are disclosed. A first towed vehicle controller comprises a communications port and a processor with control logic. The control logic determines the status of the first towed vehicle, receives fault messages on an associated vehicle communications bus, and transmits fault messages and status messages on the associated vehicle communications bus. When the control logic receives a fault message from an associated second towed vehicle controller on the associated vehicle communications bus, the control logic transmits the fault message of the associated second towed vehicle controller to the associated vehicle communications bus. The first towed vehicle controller may transmit the fault message at a first period in time, which is different than the second period in time in which the second towed vehicle controller transmitted the fault message.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: August 21, 2018
    Assignee: Bendix Commercial Vehicle Systems LLC
    Inventor: Daniel P. Zula
  • Patent number: 10053079
    Abstract: To effect redundant signal processing of a safety-relevant application, such as for a safety control unit of a motor vehicle, at least two redundant signals are fed from at least one sensor to an electronic circuit assembly as input signals for processing. At least one input signal is converted into a different test signal. In the electronic circuit assembly, the input signals are fed to a first peripheral module of a microcontroller, and the test signal is fed to an additional peripheral module. The sensor information of the input signals and of the test signal are thus redundantly processed independently of each other in a respective peripheral module of the microcontroller.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: August 21, 2018
    Assignee: WABCO GMBH
    Inventors: Christoph Brockmann, Andreas Goers, Jann Loll, Marco Michel, Otmar Struwe
  • Patent number: 10044410
    Abstract: A system for data transfer in a rotorcraft includes a power bus extending from a power source in a main fuselage of the rotorcraft to provide electrical power to electrical loads located in a tail boom section of the rotorcraft, a first power line communication node on the power bus in the tail boom section of the rotorcraft, a second power line communication node on the power bus in the main fuselage of the rotorcraft, and a digital sensor bus connected to the first power line communication node. Information from the digital sensor bus is transmitted to the first power line communication node and across the power bus to the second power line communication node.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: August 7, 2018
    Assignee: Simmonds Precision Products, Inc.
    Inventors: Michael A. Lynch, David F. Larsen
  • Patent number: 9969379
    Abstract: A method for detecting fluid leakage from a pressure-decrease valve in a hydraulic brake system having an ABS device including: a shutoff valve for shutting off supply of a working fluid from a fluid-pressure supply source to a brake device provided for a wheel; the pressure-decrease valve for discharging the working fluid from the brake device; a reservoir for storing the working fluid discharged from the pressure-decrease valve; and a return pump for returning the working fluid stored in the reservoir to a portion between the shutoff valve and the fluid-pressure supply source, the method including the steps of: activating the return pump in a state in which the hydraulic brake system is not in ABS operation, and detecting the fluid leakage from the pressure-decrease valve based on a variation in a pressure of the working fluid in the fluid-pressure supply source caused when the return pump is activated.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: May 15, 2018
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, ADVICS CO., LTD.
    Inventors: Masaki Nanahara, Masayasu Ohkubo, Kazutaka Noro, Masaki Ninoyu, Takahiro Okano
  • Patent number: 9937916
    Abstract: Systems and methods for operating a transmission of a hybrid powertrain that includes a motor/generator are described. The systems and methods may permit or inhibit transmission shifting in response to objects or conditions in a vehicles travel path. Transmission shifting is not permitted when conditions indicate the possibility of excessive transmission shifting.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: April 10, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Andrew E. Burt, Bernard D. Nefcy
  • Patent number: 9919690
    Abstract: A master cylinder generates master cylinder pressures in response to a brake operation by a driver on a brake pedal. A power hydraulic pressure generation device includes a pressure pump and an accumulator, and the accumulator accumulates an accumulator pressure increased by the pressure pump. A hydraulic pressure control valve device includes holding valves, pressure decreasing valves, and master cut valves for carrying out transmission of the master cylinder pressures from the master cylinder or the accumulator pressure from the accumulator. A stroke simulator is connected to a master pressure pipe via a simulator cut valve. The normally-open master cut valves and the normally-closed simulator cut valve for carrying out transmission of the master cylinder pressures mechanically generated by the master cylinder are backed up with backup electric power so that the operations continue even in the event of a change in state of electric power supply.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: March 20, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Tetsuya Miyazaki
  • Patent number: 9824506
    Abstract: Various embodiments of an apparatus, system and method for transmitting and indicating a fault in a combination vehicle are disclosed. A first towed vehicle controller comprises a processor with control logic capable of receiving fault messages and status messages on an associated vehicle communications bus; determining the status and faults of the first towed vehicle; and transmitting fault messages and status messages on the associated vehicle communications bus. When the control logic receives a fault message from an associated second towed vehicle controller on the associated vehicle communications bus at a second period in time, the control logic transmits the fault message of the associated second towed vehicle controller to the associated vehicle communications bus at a first period in time, different than the second period in time.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: November 21, 2017
    Assignee: Bendix Commercial Vehicle Systems LLC
    Inventor: Daniel P. Zula
  • Patent number: 9725078
    Abstract: A means for wiring a heavy load vehicle module to connect and disconnect a multiplicity of data cables to conduct and transmit brake signal data to an electronic braking system of the heavy load vehicle module, wherein the electronic braking system comprises a data input to receive the brake signal data and a data output to transmit the brake signal data, and connects among the multiplicity of data cables one data cable to the data input of the electronic braking system and another data cable to the data output of the electronic braking system, and disconnects the remaining data cables, wherein the multiplicity of data cables is greater than or equal to four. Furthermore, an electronic braking system for a heavy load vehicle module, and one such for a heavy load vehicle, with a means for wiring, is described.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: August 8, 2017
    Assignee: Goldhofer Aktiengesellschaft
    Inventors: Thomas Boeer, Armin Baader
  • Patent number: 9452760
    Abstract: During a self-driving control, when an acquisition failure occurs in traveling environment information acquisition required for performing self-driving, and a failure of a steering system of a vehicle equipped with the vehicle driving control apparatus is detected, a brake controller sets an evacuation course along which the vehicle is to travel safely within traveling environment, based on traveling environment information detected last time before the acquisition failure of the traveling environment information, and executes a deceleration of the vehicle and a yaw brake control that applies a yaw moment to the vehicle based on the evacuation course.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: September 27, 2016
    Assignee: FUJI JUKOGYO KABUSHIKI KAISHA
    Inventors: Hajime Oyama, Masato Mizoguchi, Yasushi Takaso, Koji Matsuno, Shiro Ezoe, Satoru Akiyama, Eiichi Shiraishi, Takayuki Nagase, Harunobu Horiguchi
  • Patent number: 9434308
    Abstract: A status monitoring circuit for monitoring the status of an external device coupled to an electrical system of a vehicle, the status monitoring device including a sensing unit coupled to the external device and configured to sense an input voltage and an input current at the external device, a monitoring unit coupled to the sensing unit and configured to determine a normal operation of the external device based on the sensed input voltage, and, in response, to detect an undercurrent condition of the external device based on the sensed input current, and a status indicator coupled to the monitoring unit and configured to display a fault indication in response to the monitoring unit detecting the undercurrent condition.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: September 6, 2016
    Assignee: R.A. PHILLIPS INDUSTRIES, INC.
    Inventor: Adam Bean
  • Patent number: 9381899
    Abstract: An apparatus and method for protecting an intact portion of a service brake system from a failed wheel end of a vehicle is provided. A failure in a wheel end is detected by determining an operation state of each of the wheel ends by monitoring parameters including the pressure in a parking brake air supply line. When it is determined that a failed wheel end is present in the service brake system, an antilock braking modulator or a service brake isolation valve is switched to a state in which the failed wheel end is isolated from the rest of the brake system. The service brake of the failed wheel end is disabled, while the service brakes of the other wheel ends are enabled for normal operation including antilock braking. And the parking brake of the failed wheel end is enabled, while the parking brakes of the other wheel ends are disabled to prevent immobilization of the vehicle.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: July 5, 2016
    Assignee: Bendix Commercial Vehicle Systems, LLC
    Inventors: Charles E. Eberling, Fred W. Hoffman, Ronald S. Plantan
  • Patent number: 9333962
    Abstract: A method for detecting a malfunction of a brake system may include measuring a deceleration/acceleration upon braking and determining whether the brake system has the malfunction by comparing the measured deceleration/acceleration and a required deceleration/acceleration. If it is determined that the brake system has the malfunction, the method further includes determining whether a braking interval is an interval where braking is performed only through regenerative braking. If so, the method determines that a regenerative brake system has the malfunction. If not, the method further includes determining whether a left friction brake system or a right friction brake system has the malfunction by measuring a yaw rate value and determining whether a front wheel friction brake system or a rear-wheel friction brake system has the malfunction by using a variation amount of a measurement value of the deceleration/acceleration.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: May 10, 2016
    Assignees: Hyundai Motor Company, Research & Business Foundation Sungkyunkwan University
    Inventors: In Su Kim, Ji Weon Ko, Hyun Soo Kim
  • Patent number: 9108604
    Abstract: A system and method for operating a brake system for motor vehicles, includes a master brake cylinder actuated by a brake pedal and separably connected to at least one hydraulically acutuatable wheel brake by at least one brake circuit, a hydraulically operable pedal travel simulator is connectable to the master brake cylinder, an electrically controllable pressure provision apparatus is separably connected to the brake circuit, and an electronic open-loop and closed-loop control unit. Upon brake pedal actuation, a pressure of the pressure provision apparatus is applied to the brake circuit in a first operating mode and the pressure of the master brake cylinder is applied to the brake circuit in a second operating mode. In the event of transition from the second operating mode to the first operating mode while the brake pedal is actuated, the actuation travel of the brake pedal is adjusted by electronic open-loop or closed-loop control.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: August 18, 2015
    Assignee: Continental Teves AG & Co. oHG
    Inventors: Jürgen Böhm, Johann Jungbecker, Stefan Drumm, Marco Besier, Harald Biller, Zlatko Penzar, Jochen Führer, Steffen Linkenbach
  • Patent number: 9004616
    Abstract: A brake control system for motor vehicles includes a stability system for stabilizing the vehicle from the standpoint of driving dynamics during braking, a triggering unit for the automatic output of a braking demand as a function of the traffic situation, a braking unit which converts the braking demand into a braking action, and a control unit for modifying the braking demand prior to its implementation as a function of the state of the stability system.
    Type: Grant
    Filed: January 20, 2005
    Date of Patent: April 14, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Martin Heinebrodt, Martin Randler
  • Patent number: 8915553
    Abstract: A braking device for braking a moving mass includes a movably guided coupling member for pressing a brake lining against a braking surface, a brake cylinder, filled with a hydraulic liquid, a brake piston which is movable inside the brake cylinder and which is connected to the coupling member. At least one hydraulic line can be connected to the brake cylinder. The device ensures the moving masses to be reliably decelerated. For that purpose, a fluidic-mechanical safety brake device is used to connect the brake cylinder to the one or more hydraulic lines.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: December 23, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Matthias Liermann, Toni Schiffers, Christian Stammen
  • Patent number: 8918261
    Abstract: Various embodiments provide braking systems and methods for a motor vehicle. One braking system includes a primary braking system, a speed sensor, a brake pedal, a parking brake, and a processor coupled to the parking brake and the primary braking system. The processor is configured to engage the primary braking system when the parking brake is activated and the motor vehicle is traveling at a speed at least equal to a pre-determined speed.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: December 23, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Adam Busack, Eric E. Krueger
  • Patent number: 8894159
    Abstract: In a brake controlling device (20), a separating valve (60) is provided in a main flow path (45) for interconnecting a first liquid pressure circuit and a second liquid pressure circuit. When an abnormality detecting section detects an abnormality relating to brake fluid pressure, a controlling section sets the separating valve (60) to a closed state. A leakage suppressing section performs leakage suppressing processing for suppressing entry of a brake fluid, which is in the first liquid pressure circuit, into the second liquid pressure circuit after the separating valve (60) is set to the closed state. A leakage suppressing section sets a master cut valve (64) to a closed state to perform the leakage suppressing processing.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: November 25, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Daisuke Nakata, Tsukasa Fukasawa, Eiji Nakamura, Takahiro Okano
  • Patent number: 8831819
    Abstract: The running control device and method according to the present invention are those for determining abnormality of a longitudinal acceleration sensor which detects vehicular longitudinal acceleration that is used in a vehicle running control. An integrated value of a vehicular longitudinal acceleration that is detected by the longitudinal acceleration sensor is calculated, and determination whether or not the longitudinal acceleration sensor is abnormal is conducted on the basis of the integrated value and a vehicle speed based on vehicle wheel speeds. The calculation of the integrated value is initiated when a situation where the vehicle speed based on vehicle wheel speeds is zero and the increasing rate of the detected vehicular longitudinal acceleration is equal to or larger than a reference value for the increasing rate continues for a period which is equal to or larger than a reference value for the initiation of calculation.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: September 9, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takashi Saito, Kaiji Itabashi
  • Patent number: 8807668
    Abstract: Provided are a vehicle braking system and a master cylinder which are capable of providing a good pedal feel. A valve-opening pressure for a pressure-reducing valve of the master cylinder is set higher than a hydraulic pressure which is obtained with a pressing force on a brake pedal being 500 N and lower than a hydraulic pressure obtained at a time when a booster reaches a full-load point in case of failure of the booster so as to be specialized for improving pedal feel. Required performance in case of failure of the booster is realized by a pressure-intensifying unit.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: August 19, 2014
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Naganori Koshimizu, Takato Ogiwara
  • Patent number: 8774990
    Abstract: A method for demanding safety reactions for a rail vehicle having a plurality of appliances each able to demand a safety reaction when required, namely a braking process or a traction inhibit or both for the rail vehicle, includes: a) identification of a state in which one of the safety reactions should be carried out by one of the appliances, b) demanding the safety reaction by the appliance through a data bus, and c) feeding back information to the demanding appliance that the safety reaction has been carried out or intervening in a safety loop to initiate the desired safety reaction, if the safety reaction is not carried out.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: July 8, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wilhelm Burg, Norbert Werkmeister
  • Patent number: 8775046
    Abstract: Systems and methods for detecting unintended acceleration of a vehicle. One system includes a first sensor that provides information on a brake booster vacuum. The vacuum is provided by the vehicle's engine and the brake booster multiplies a braking force initiated by a driver. A second sensor provides information on the vehicle's speed, and a third sensor provides information on the braking force initiated by the driver. The system also includes a controller configured to receive the information from the first sensor, second sensor, and third sensor and initiate corrective action if the brake booster vacuum is less than a predetermined threshold, the vehicle's speed is greater than a predetermined threshold, and the braking force initiated by the driver is greater than a predetermined threshold.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: July 8, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Robert M. Kaster, Francis Henry Kasperski, III, Carlos H. Atoche, Hideo Takada
  • Publication number: 20140110999
    Abstract: An apparatus and method for protecting an intact portion of a service brake system from a failed wheel end of a vehicle is provided. A failure in a wheel end is detected by determining an operation state of each of the wheel ends by monitoring parameters including the pressure in a parking brake air supply line. When it is determined that a failed wheel end is present in the service brake system, an antilock braking modulator or a service brake isolation valve is switched to a state in which the failed wheel end is isolated from the rest of the brake system. The service brake of the failed wheel end is disabled, while the service brakes of the other wheel ends are enabled for normal operation including antilock braking. And the parking brake of the failed wheel end is enabled, while the parking brakes of the other wheel ends are disabled to prevent immobilization of the vehicle.
    Type: Application
    Filed: October 18, 2012
    Publication date: April 24, 2014
    Inventors: Charles E. EBERLING, Fred W. HOFFMAN, Ronald S. PLANTAN
  • Patent number: 8504272
    Abstract: A verification system is provided for verifying the availability of a first level of a braking system in a powered system. The powered system travels along a route. The verification system includes a controller coupled to an engine and a braking system of the powered system. The controller is configured to predetermine one of an activation level of the engine and/or an activation level of the braking system at a plurality of incremental locations along the route. The controller is further configured to activate the first level of the braking system at an incremental location having a predetermined activation level of the braking system which is lower than the first level of the braking system. A method is also provided for verifying the availability of the first level of a braking system in a powered system.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: August 6, 2013
    Assignee: General Electric Company
    Inventor: Ajith Kuttannair Kumar
  • Patent number: 8355851
    Abstract: A vehicle cruise control apparatus includes a vehicle speed adjusting device that adjusts a vehicle speed to a set target vehicle speed, a brake operation detecting device that detects brake operation performed by a driver, and a first controller that controls the vehicle speed adjusting device based on a target driving force that maintains a vehicle in a stopped condition, when the brake operation performed by the driver is detected.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: January 15, 2013
    Assignees: Toyota Jidosha Kabushiki Kaisha, Advics Co., Ltd.
    Inventors: Gen Inoue, Katsuyuki Kawai, Hiroyuki Sawada, Ichiro Kitaori, Yasuhito Ishida
  • Publication number: 20120299368
    Abstract: An electromagnetic pressure control module for a pressure-medium-actuated brake system of a motor vehicle, having at least two channels, the module being controlled electrically in undisrupted operation and pneumatically in the event of a fault in the electrics, and also from a method for operating the electropneumatic pressure control module.
    Type: Application
    Filed: December 15, 2010
    Publication date: November 29, 2012
    Inventors: Ralf Woerner, Friedbert Roether
  • Patent number: 8276995
    Abstract: A control unit for a rail vehicle, comprising a braking control unit that contains an electronic braking control device for emitting control commands to brake actuators and/or comprising an anti-skid device, which controls the wheel slip of the wheels of at least one axle in accordance with at least one rotational speed signal from an anti-skid sensor. The control unit also comprises a roll monitoring unit with an electronic roll monitoring control device and at least one roll monitoring sensor for detecting the rotational speed of at least some wheels in the form of a rotational speed signal, and comprises a rolling gear monitoring unit for monitoring and/or diagnosing critical conditions of and damage to the rolling gear. The monitoring unit comprises an electronic control device for monitoring the rolling gear.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: October 2, 2012
    Assignee: Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH
    Inventors: Stefan Aurich, Johannes Schuhmacher, Jörg-Johannes Wach, Ulf Friesen
  • Patent number: 8260514
    Abstract: Disclosed is a method for increasing the braking effect in a motor vehicle with a hydraulic brake system. In the method, in case of a reduced effectiveness of the brake system, a brake pressure in at least one wheel brake is increased by switching on an energy supply unit. A check is made whether a brake pressure (pTMC) in a master brake cylinder (3) reaches a predetermined threshold value (pT), and that the energy supply unit (9, 10) is disabled upon expiry of a predetermined length of time (?t), which begins the instant it is detected that the brake pressure (pTMC) has reached the predetermined threshold value (pT). Also disclosed is a device that is appropriate to implement the method.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: September 4, 2012
    Assignee: Continental Teves AG & Co. OHG
    Inventors: Thomas Kuzel, Bernd Ummer, Holger Esslinger
  • Patent number: 8224545
    Abstract: A brake control apparatus (20) includes: a hydraulic pressure source (30) that regulates pressure of hydraulic fluid in accordance with a brake operation input (24,25); a wheel cylinder (23) that applies braking force to a wheel (22) in response to a supply of the hydraulic fluid to the wheel cylinder (23); a hydraulic pressure booster mechanism (31) that amplifies the brake operation input by using the hydraulic pressure source (30), and outputs the amplified brake operation input; a hydraulic fluid supply path (63) through which the hydraulic fluid is supplied from the hydraulic pressure source (30) to the wheel cylinder (23); and a controller (70) that shuts off (valve 66) a flow of the hydraulic fluid-through the hydraulic fluid supply path (63), if a malfunction due to hydraulic fluid leakage is detected in the hydraulic fluid supply path (63) during a brake control mode in which the hydraulic fluid is supplied to the wheel cylinder (23) through the hydraulic fluid supply path (63).
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: July 17, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshito Tanaka, Hiroshi Nakaoka, Masaki Nanahara
  • Patent number: 8201895
    Abstract: The invention relates to an architecture for powering aircraft brakes for an aircraft having at least two undercarriages, each having a certain number of wheels (L1, L2; R1, R2), each of the wheels being fitted with a brake having a certain number of electromechanical braking actuators (1, 2, 3, 4). The architecture has at least four power supply units that power groups of actuators taken from complementary groups of wheels.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: June 19, 2012
    Assignee: Messier-Bugatti-Dowty
    Inventor: David Frank
  • Patent number: 8201896
    Abstract: A vehicle brake apparatus has a wheel cylinder that generates a braking force when a pump is rotated in a first direction and does not generate the braking force when the pump is rotated in a second direction. A brake control section operates a valve to open a channel between the pump and the wheel cylinder and rotates the pump in the first direction to increase the braking force in accordance with a driver braking operation. The brake control section operates the valve to close the channel between the pump and the wheel cylinder to maintain the braking force in accordance with the driver braking operation. The brake control section rotates the pump in the second direction when the driver braking operation is not performed. The diagnosis section detects a rotation state of the pump while the pump rotates in the second direction to diagnose abnormalities in the pump.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: June 19, 2012
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Motoi Ishizuka
  • Patent number: 8177309
    Abstract: A leak diagnostic system for a vehicle comprises a calculation module and a diagnostic enabling module. The calculation module calculates a decay rate of a brake booster vacuum. The diagnostic enabling module selectively enables the decay rate calculation based on mass airflow (MAF) into an engine and engine vacuum.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: May 15, 2012
    Inventors: Zhong Wang, Tony T. Hoang, Lan Wang, Wenbo Wang, Margaret C. Richards, Daryl A Wilson
  • Patent number: 8146858
    Abstract: The invention relates to a no-back device for a mobile element actuating device including a screw shaft having first and second braking means each comprising a ratchet wheel. These ratchet wheels are mounted opposite one another so that the first braking means are adapted to resist an unwanted movement of the screw shaft in a first direction, and the second braking means are adapted to resist an unwanted movement of the screw shaft in an opposite direction. The no-back device also includes means for detecting the state of the rotation of the ratchet wheels and indicating means for furnishing, according to the state of the rotation of the wheels, an indication concerning the operating state of the no-back device.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: April 3, 2012
    Assignee: Goodrich Actuation Systems SAS
    Inventors: Isabelle Port-Robach, Raphael Medina
  • Patent number: 8132867
    Abstract: A brake control apparatus includes a braking force applying apparatus for applying a braking force to each of a plurality of wheels adapted to a vehicle, a braking force testing device for testing the braking force of a predetermined malfunction test subject wheel by controlling the braking force applied thereto to be reduced or maintained for a predetermined time on the basis of a test actuation pattern while the braking force applied to each wheel is increased, a wheel speed detecting device for detecting a wheel speed of each of the plurality of the wheels including the malfunction test subject wheel, and a malfunction detecting device for detecting a malfunctioning state, in a case where changes of the wheel speed of the malfunction test subject wheel towards acceleration is not detected while the braking force testing device testing the braking force applied to the malfunction test subject wheel.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: March 13, 2012
    Assignee: Advics Co., Ltd.
    Inventors: Mototsugu Sawada, Shigeru Saito
  • Patent number: 8126593
    Abstract: An apparatus is provided for detecting a malfunction occurring in an electromagnetic brake of a robot. In the apparatus, the main relay and the sub-relay are controlled to open the main contact and the sub-contact when the robot is activated. Detecting is then made whether or not the main contact is malfunctioning, by monitoring an energized state of the main contact. Activation of the robot is stopped when the main contact is malfunctioning and the main relay is controlled to close the main contact for a given period of time when that the main contact is operating normally. Detecting is further made as to whether or not the sub-contact is malfunctioning, by monitoring an energized state of the sub-contact The activation of the robot is stopped when the sub-contact is malfunctioning and the main relay is controlled to close the main contact when the sub-contact is operating normally.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: February 28, 2012
    Assignee: Denso Wave Incorporated
    Inventors: Kazunori Watanabe, Takamitsu Inagaki
  • Patent number: 8090515
    Abstract: Provided is a method for controlling regenerative braking in an electric vehicle, including operating regenerative braking, checking if a data communication using a control area network (CAN) standard is properly made between a regenerative braking torque controller and a hydraulic pressure braking torque controller, and enabling the regenerative braking torque controller and the hydraulic pressure braking torque controller to maintain regenerative braking torque and hydraulic pressure torque at their respective previous levels or to increase regenerative braking torque and/or hydraulic pressure torque until braking ends, when the data communication fails between the regenerative braking torque controller and the hydraulic pressure braking torque controller.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: January 3, 2012
    Assignee: Hyundai Motor Company
    Inventors: Gab Bae Jeon, Byeong Cheol Yang
  • Patent number: 8078376
    Abstract: A verification system is provided for verifying the availability of a first level of a braking system in a powered system. The powered system travels along a route. The verification system includes a controller coupled to an engine and a braking system of the powered system. The controller is configured to predetermine one of an activation level of the engine and/or an activation level of the braking system at a plurality of incremental locations along the route. The controller is further configured to activate the first level of the braking system at an incremental location having a predetermined activation level of the braking system which is lower than the first level of the braking system. A method is also provided for verifying the availability of the first level of a braking system in a powered system.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: December 13, 2011
    Assignee: General Electric Company
    Inventor: Ajith Kuttannair Kumar
  • Patent number: 8060275
    Abstract: An on-board diagnostic system of a vehicle comprises disabling diagnostic operation, such as a misfire monitor, based on road roughness. In one example, the disabling of the diagnostic operation is based on brake actuation and degradation of an anti-lock braking system.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: November 15, 2011
    Assignee: Ford Global Technologies, LLC
    Inventors: Jahan Asgari, Timothy Feldkamp, Craig Stephens, Moses Fridman, Davor Hrovat, Arthur Varady, Mitch McConnell
  • Patent number: 8042885
    Abstract: A brake control apparatus for a vehicle includes a controlling device for actuating the pressure modulating device and the motor, calculating a target braking force corresponding to an operation amount, and driving the motor and the pressure modulating device, wherein, in an electric power supply stopped situation, in which electric power is not supplied by the battery, while an operation amount detected by the operation amount sensor increases, the controlling device starts driving the motor by means of electric power supplied by the capacitor, only when a target braking force corresponding to the operation amount reaches memorized target braking force memorized in the memorizing portion.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: October 25, 2011
    Assignee: Advics Co., Ltd.
    Inventors: Kazuya Maki, Hiroaki Niino
  • Patent number: 8010269
    Abstract: Brake apparatus includes a transmission unit for operatively connecting a brake pedal to a master cylinder, and the transmission unit is a mechanism capable of varying a ratio between an output amount of a push rod connected to a master cylinder and an operation amount of the brake pedal. Further, the transmission unit is constructed in such a manner that, in an initial operation region of the brake pedal, a ratio of the operation amount of the brake pedal to the output amount of the push rod is set to be greater than in another operation region immediately following the initial operation region.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: August 30, 2011
    Assignee: Honda Motor Co., Ltd.
    Inventors: Tomoya Toyohira, Arata Inoue, Kazuyoshi Akutsu, Kunimichi Hatano
  • Patent number: 8007056
    Abstract: A brake control apparatus has first and second wheel cylinders; a master cylinder unit; first and second systems; a separation valve; a pressure control mechanism that controls the working fluid pressure transferred to at least one of the first and second wheel cylinders independently of the brake operation, and a brake ECU. The brake ECU generates a differential pressure across the separation valve by operating the pressure control mechanism when there is no brake operation while a running drive source of a vehicle is stopped to determine whether the separation valve has a leakage abnormality.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: August 30, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masayasu Ohkubo, Akihiro Otomo, Tsukasa Fukasawa
  • Patent number: 7871136
    Abstract: A trouble diagnosis device of a vehicle body acceleration sensor by determining that the output fixing trouble of the vehicle body acceleration sensor or the like is not generated at a point of time that the fluctuation width of the output value of a vehicle body acceleration sensor becomes a predetermined value or above during the traveling of the vehicle with the vehicle speed equal to or more than the predetermined speed, and by stopping the trouble diagnosis of the output fixing trouble of the vehicle body acceleration sensor or the like until the vehicle speed is lowered to a value less than the predetermined speed thereafter, it is possible to avoid the trouble diagnosis of the output fixing trouble of the vehicle body acceleration sensor or the like when that the trouble diagnosis of the output fixing trouble of the vehicle body acceleration sensor or the like is unnecessary.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: January 18, 2011
    Assignee: Bosch Corporation
    Inventor: Takayuki Okai
  • Patent number: 7850254
    Abstract: An extreme emergency braking system including at least two brake modules, a pedal feel emulator in communication with at least one of the brake modules by way of a first communication line, an electric park brake switch assembly in communication with the brake modules by at least a second communication line, and an electric circuit adapted to supply at least a first voltage to a first one of the brake modules and a second voltage to a second one of the brake modules, the supplied voltages being indicative of a state of the switch assembly, wherein the first communication line is independent of the second communication line.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: December 14, 2010
    Assignee: BWI Company Limited S.A.
    Inventors: Paul M. Degoul, Jean-Francois M. Larroux, Robert J. Disser
  • Publication number: 20100145565
    Abstract: A motor vehicle (10) has wheels (22F, 22R) on which it travels, a powertrain (12) for delivering propulsion torque to at least some of the wheels to propel the vehicle, and a service brake system (24) having service brakes (28). When the service brakes are applied by a service brake actuator (26), braking torque is applied to at least some of the wheels. A first device (36) provides data representing a velocity that correlates with velocity of the vehicle, and a second device (38) associated with the actuator provides data that distinguishes between application and non-application of the service brakes by the actuator. A processor (34) monitors data from the first and second devices and processes the monitored data (FIG. 2) to provide a data output BPP_FLT when the first device has disclosed velocity change indicative of the service brakes having been applied without the second device having disclosed that the service brakes have been applied.
    Type: Application
    Filed: July 2, 2009
    Publication date: June 10, 2010
    Applicant: International Engine Intellectual Property Company, LLC
    Inventors: Rogelio Rodriguez, Ly V. Tran
  • Patent number: 7734406
    Abstract: A method, computer usable medium including a program, and a system for braking a vehicle during brake failure. The method and computer usable medium include the steps of determining a brake force lost corresponding to a failed brake, and determining a brake force reserve corresponding to at least one non-failed brake. At least one commanded brake force is determined based on the brake force lost and the brake force reserve. Then at least one command brake force is applied to the at least one non-failed brake wherein at least one of an undesired yaw moment and a yaw moment rate of change are limited to predetermined values. The system includes a plurality of brake assemblies wherein a commanded brake force is applied to at least one non-failed brake.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: June 8, 2010
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Michael W. Oppenheimer, David B. Doman, Aleksander B. Hac