Electric Control Patents (Class 303/20)
  • Patent number: 11198416
    Abstract: A method for operating an automated locking brake in a motor vehicle includes setting a defined deceleration of the vehicle with the locking brake during a locking brake process, shutting-off activation of the locking brake when a shut-off condition has been satisfied, and taking into account at least one predicted value of the locking brake process in the shut-off condition.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: December 14, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Edith Mannherz, Philipp Schmaelzle
  • Patent number: 11130480
    Abstract: An apparatus for operating an electric parking brake of a vehicle includes a generator and a control device. The generator is designed to provide energy for supplying the electric parking brake of the vehicle with energy, and the control device is designed to activate the generator for supplying the electric parking brake with energy depending on a result of a monitoring of an energy supply to the electric parking brake.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: September 28, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Christian Bohne, Matthew Nimmo, Norbert Kearney, Steffen Ackermann, Steffen Zechmeister
  • Patent number: 11124169
    Abstract: A motor vehicle system comprising a first electric parking brake actuation unit assigned to a first vehicle wheel, and a second electric parking brake actuation unit assigned to a second vehicle wheel. The system further comprises a first control unit which includes at least one first microprocessor and which is designed to control at least the first electric parking brake actuation unit and an anti-lock and/or vehicle stability control system. A second control unit of the system comprises at least one second microprocessor and is designed to control at least the second electric parking brake actuation unit and an electric braking power generator and/or an automatic transmission. In some variants, a separate parking brake control unit can be dispensed with as the braking brake control function is shared between control units that can be used for other purposes.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: September 21, 2021
    Assignee: ZF Active Safety GmbH
    Inventors: Erwin Michels, Benedikt Ohlig, Matthias Fuchs
  • Patent number: 11097700
    Abstract: Disclosed herein is an electronic brake system using an integrated sensor, which includes a hydraulic block configured to distribute and supply a fluid to a wheel brake, and having a through-hole penetrated at both sides thereof, a sensor module installed at one side of the hydraulic block having the through-hole, for sensing a linear displacement of a brake pedal and a position of a motor, and an electronic control unit installed to a side of the hydraulic block opposite to the sensor module, in order to determine a movement distance of the pedal, based on the linear displacement of the pedal sensed by the sensor module, and control rotation of the motor depending on the linear displacement of the pedal.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: August 24, 2021
    Assignee: ZF Active Safety GmbH
    Inventors: Sung Hwan Shin, Min Seok Kwon
  • Patent number: 10960860
    Abstract: A brake controller has a control dial with a series of full color LEDs arranged around the dial. The dial with its LEDs is in a module mounted on the dash of the towing vehicle and connected by a cable to a main module mounted out of sight. The dial is a rotary encoder pushbutton mounted on the same circuit board as the LED chips. Status information is output using the LEDs primarily based on color. Substantially all setting input is provided solely by user manipulation of the dial, pushing the dial in to change setting input mode, with the value of the input reflected in the number of LEDs being lit in a color corresponding to the brake controller setting being changed, as the user rotates the dial either clockwise or counterclockwise to change setting values.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: March 30, 2021
    Assignee: CURT Manufacturing, LLC
    Inventors: Joecyl Sanchez, Harsh Desai, Robert Lange, III
  • Patent number: 10913435
    Abstract: A braking system includes a brake actuator, a control valve, a control assembly, at least one pressure sensor, and at least one flow sensor. The control valve is disposed to direct hydraulic fluid to the brake actuator at a rate corresponding to a magnitude of a control signal. The at least one flow sensor and the at least one pressure sensor, in communication with the control assembly, are disposed between the control valve and the brake actuator and configured to measure a respective flow rate and pressure of the hydraulic fluid to the brake actuator. The control assembly is configured to ramp the control signal from a first signal level to a second signal level at a predetermined rate of change. The control assembly is configured to determine a flow-based position of the brake actuator based on the flow rate.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: February 9, 2021
    Assignee: Goodrich Corporation
    Inventors: Naison E. Mastrocola, Tyler Arsenault
  • Patent number: 10870422
    Abstract: A method for detecting a fail of an electronic parking brake may include: detecting, by an electronic control unit (ECU), a current applied to a motor during a parking operation of an eDIH parking brake, and detecting a current inflection point at which the slope of the current is changed, the slope of the current having started to rise in a load generation section following a no-load section after a starting current of the motor was generated; and comparing, by the ECU, the current value of the detected current inflection point to a current value of a preset reference current inflection point, and recognizing that a fail occurred during the parking operation of the eDIH parking brake, when the current value of the detected current inflection point is different by a preset error range or more from the current value of the reference current inflection point.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: December 22, 2020
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventors: Chi Hoon Jo, Min Kyu Jung
  • Patent number: 10829101
    Abstract: An electric motor-driven parking brake of a motor vehicle can be released in an emergency by applying emergency current from a parallel emergency current source to the motors controlling the parking brake. The direction of the emergency current is selected to reverse the motors, i.e., release the parking brake.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: November 10, 2020
    Assignee: Continental Automotive Systems, Inc.
    Inventors: Marjan Deljosevic, Ermal Gjoni, John Truax
  • Patent number: 10800385
    Abstract: A method for operating a brake system with an automated parking brake for a motor vehicle, includes detecting a defined fault. The method further includes activating a parking mode of the parking brake automatically when the defined fault is detected. The automated parking brake is operable in different operating modes, a first operating mode corresponding to a drive mode and a second operating mode corresponding to the parking mode.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: October 13, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Dieter Blattert, Frank Baehrle-Miller
  • Patent number: 10795849
    Abstract: A system of automation components, having a control unit, having a memory area which includes a parameter data record, and a key memory, which is able to be connected to the control unit via an unambiguously allocatable, electrically conductive connection. The key memory is location-bound, in particular able to be spatially fixedly allocatable to a specific point in a system as a whole, the key memory having at least one non-volatile memory area, including an unambiguous item of identifying information. The control unit is able to read out the identifying information. The system also includes an external data memory, which is able to be directly accessed, and data is able to be exchanged between the control unit and the external data memory.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: October 6, 2020
    Assignee: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Benjamin Norenburg, Christian Senft, Sebastian Richter
  • Patent number: 10792821
    Abstract: A method for decelerating a robot axis arrangement having at least one output link includes steps of applying a braking force on the output link with a brake and, in so doing, controlling a driving force of a drive that acts on the output link, and/or controlling the braking force on the basis of a dynamic variable of the output link, wherein the dynamic variable is a function of the braking force.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: October 6, 2020
    Assignee: KUKA Deutschland GmbH
    Inventors: Hartmut Keyl, Michael Thummel, Dietmar Tscharnuter, Tobias Weiser
  • Patent number: 10737673
    Abstract: An electric-brake controller includes an antilock controller configured to control a pressing force of an electric brake. The electric brake includes a pressing member that is advanced by rotation of an electric motor in a forward direction to press a friction member against a brake rotation member. The electric brake includes a return spring that applies a spring force such that the pressing member is moved away from the brake rotation member. The antilock controller includes a pressing-force reducer that reduces the pressing force. The pressing-force reducer includes: a reverse-rotation-current supplier that supplies reverse-rotation current for rotating the electric motor in a reverse direction for a reverse-rotation-current supply time; and a forward-rotation-current supplier that supplies forward-rotation current, for rotating the electric motor in the forward direction, to the electric motor after the reverse-rotation current is supplied for the reverse-rotation-current supply time.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: August 11, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroshi Nakaoka
  • Patent number: 10731720
    Abstract: Methods, systems, and media for non-contact brake pad wear determination of one or more brake pads associated with a vehicle are provided.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: August 4, 2020
    Assignee: Rivian IP Holdings, LLC
    Inventor: Thomas J. Hall
  • Patent number: 10723329
    Abstract: A trailer mounted proportional brake controller for a towed vehicle and a method of controlling the brakes of a towed vehicle is described. The brake control unit may control the brakes of a towed vehicle. The brake control unit may include a power control unit and a hand control unit. The power control unit may be connected to the brakes of the towed vehicle and the power control unit may be capable of selectively controlling the brakes of the towed vehicle based on a set of braking parameters. The hand control unit may be configured to remotely communicate with the power control unit. The hand control unit may be capable of transmitting information to the power control unit to adjust at least one of the braking parameters and receiving information from the power control unit.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: July 28, 2020
    Assignee: HORIZON GLOBAL AMERICAS INC.
    Inventors: Bruce Edward Smith, Mark William Austin, Richard Lyons Hilsbos, Chandrakumar Kulkarni
  • Patent number: 10717423
    Abstract: Disclosed is a method for controlling brakes in a trailer vehicle comprising a pneumatic brake system, service brakes and an electronic brake system with anti-lock control, wherein at least one axle of the trailer vehicle is fitted with spring-loaded brakes and revolution rate sensors. The method comprises: monitoring with the electronic brake system whether there is a braking demand, monitoring with the electronic brake system whether at least one wheel of at least one axle is locking up, and if there is no braking demand and at least one wheel of the at least one axle is locked while traveling, controlling the pneumatic braking system with the electronic brake system to pressurize the spring-loaded brakes and to brake the trailer vehicle by the service brakes automatically and with anti-lock control. A valve arrangement is also disclosed.
    Type: Grant
    Filed: June 4, 2016
    Date of Patent: July 21, 2020
    Assignee: WABCO GmbH
    Inventors: Rainer Risse, Armin Sieker, Axel Stender
  • Patent number: 10668810
    Abstract: A method and system are provided for vehicle stabilization of a hybrid vehicle in an event of brake slip of the drive wheels or an increased risk thereof. The method presupposes that the hybrid vehicle includes, between the internal combustion engine and the electric motor, a clutch by which the torque of the internal combustion engine can be decoupled from the drive wheels. With the clutch engaged, the resulting torque on the electric motor is produced by the torque of the internal combustion engine and the torque of the electric motor. The presence of a specific vehicle condition indicative of brake slip of the drive wheels or a risk thereof is recognized. If such a vehicle condition is recognized, the clutch between the internal combustion engine and the electric motor is released and the torque of the electric motor is increased.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: June 2, 2020
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Florian Schnappauf, Michael Prommnitz, Stephan Capellaro, Thomas Baer, Jerome Willot, Johann Knoeferl, Thomas Hardtke
  • Patent number: 10661769
    Abstract: Disclosed is a method for automatically controlling brakes in a trailer vehicle having antilock control, wherein wheel rotational speeds are continuously monitored and evaluated at wheels having antilock control. According to the method, lateral acceleration and longitudinal acceleration of the trailer vehicle are determined. If a predefined, critical lateral acceleration is exceeded, an automatic braking process occurs. A control unit and trailer vehicle are also disclosed in connection with the inventive method.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: May 26, 2020
    Assignee: WABCO GmbH
    Inventors: Daniel Czaja, Hauke Diers, Axel Stender
  • Patent number: 10630128
    Abstract: A method and apparatus for controlling an electric motor. A flow of an alternating current through stator coils in the electric motor is controlled based on a position of a rotor in the electric motor such that a repulsive force between a rotor and a stator coil in the stator coils occurs when the alternating current flows through the stator coil.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: April 21, 2020
    Assignee: The Boeing Company
    Inventors: Brian Jay Tillotson, Peng Zeng
  • Patent number: 10532724
    Abstract: A method for operating an electric parking brake includes determining a fault relating to a first control unit which in a normal operating mode operates the electric parking brake. The method further includes operating a second control unit in an emergency operating mode as a function of the determined fault and determining a state for an operator control element of the parking brake using the second control unit and operating the parking brake as a first function of the determined state of the operator control element using the second control unit in the emergency operating mode.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: January 14, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Peter Rebholz-Goldmann, Toni Frenzel
  • Patent number: 10518760
    Abstract: The system provides for the control of a railway train for the transport of goods, comprising a plurality of wagons a master locomotive at the head of the train and one or more slave locomotives distributed along the train. The train is equipped with a pneumatic brake pipe which extends along the whole train. The master locomotive is equipped with a master control system for controlling the train, and the at least one slave locomotive is equipped with a slave control system subordinated to the master control system. The master and slave systems can communicate with each other via a radio channel. The or each slave system is designed to control traction apparatuses, apparatuses for controlling the pressure in the brake pipe and apparatuses for applying the emergency brake of the corresponding slave locomotive, and for retransmitting signals indicating the status of these apparatuses of the slave locomotive to the master system.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: December 31, 2019
    Assignee: FAIVELEY TRANSPORT ITALIA S.P.A.
    Inventors: Angelo Grasso, Stefano Lucarelli, Roberto Tione
  • Patent number: 10494003
    Abstract: An intelligent locomotive brake control system which selects and optimizes use of dynamic, independent, and automatic brakes on the locomotive to assure intended brake power, to minimize in-train forces, minimize brake component wear, and to automate standard train brake protocol. The system may be programmed to alter an automatic brake application commanded by a train driver to omit or reduce the amount of the automatic brake application in favor of a dynamic brake application, and independent brake application, or combination thereof.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: December 3, 2019
    Assignee: NEW YORK AIR BRAKE, LLC
    Inventors: Eric C. Wright, John M. Reynolds
  • Patent number: 10486660
    Abstract: The disclosure relates to a method for operating at least one parking brake of a motor vehicle, which parking brake can be activated and deactivated in an automated manner, wherein, for the purpose of automated operation of the parking brake, state values of the motor vehicle are monitored and compared with prespecifiable conditions, and wherein the parking brake is activated when a first group of the conditions is met and is deactivated when a second group of the conditions is met. It is provided that the parking brake is activated only when all of the conditions of the second group can be successfully checked for compliance or non-compliance with the respective condition.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: November 26, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Edith Mannherz, Helmut Wolff
  • Patent number: 10479342
    Abstract: The electric brake device includes an electric motor, a friction member operator, a friction member, a brake rotor, and a control device. A braking force estimator provided in the control device includes: a direct estimator configured to convert output of a braking force sensor which detects a load or displacement corresponding amount, to a braking force; and an indirect estimator configured to estimate the braking force on the basis of information other than output of the braking force sensor. A range in which the braking force is estimated by the direct estimator is a specified low-braking-force range, and in a range beyond this range, estimation of the braking force is performed by the indirect estimator.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: November 19, 2019
    Assignee: NTN CORPORATION
    Inventors: Yui Masuda, Tatsuya Yamasaki
  • Patent number: 10442421
    Abstract: A method for determining the functional capability of a brake system with a wheel brake and a movable brake piston includes setting first and second braking forces on the brake piston with a hydraulic pressure generator and an electromechanical actuator, respectively, to set a parking brake force at the wheel brake. The method further includes actuating the actuator to set a third braking force on the brake piston with a value lower than the first and second braking forces. The hydraulic pressure generator is then actuated to set the first braking force after the third braking force is set. The actuator is then actuated to set the second braking force after the first braking force is set. The functional capability of the brake system is determined when the operating current during application of the second braking force temporarily corresponds to an open-circuit current of the actuator.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: October 15, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Edith Mannherz, Helmut Wolff
  • Patent number: 10399581
    Abstract: A deadhead return control system for a locomotive or a control car similar to a locomotive having a deadhead stop and a piston valve with the connection status of the piston valve being controlled by the status of the deadhead stop. A first end of the deadhead stop is connected to a pilot end of the piston valve, a second end of the deadhead stop is connected to the atmosphere, a third end of the deadhead stop is connected to the external main air pipe. When the deadhead stop has a closed status, the first end of the stop is connected to the second end of the stop and when the stop has an open status, the first end of the stop is connected to the third end of the stop to allow for the air from said main air pipe to flow into the piston valve.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: September 3, 2019
    Assignee: Knorr-Bremse Systems For Rail Vehicles (Suzhou) Co., Ltd.
    Inventors: Zili Huang, Minye Zhang
  • Patent number: 10391990
    Abstract: A vehicle braking system includes a wheel cylinder, a master cylinder, a brake pedal operable to transmit a user input force to the master cylinder, a primary braking unit including a first electronically controlled pressure generating unit distinct from the master cylinder and operable to generate a braking force at the wheel cylinder in a first mode of operation, a secondary braking unit including a second electronically controlled pressure generating unit distinct from the master cylinder and operable to generate a braking force at the wheel cylinder in a second mode of operation and a pedal feel simulator operable to provide feedback to the brake pedal according to a fixed characteristic of the pedal feel simulator defining a predetermined force-stroke relationship relating a travel distance of the brake pedal to the user input force.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: August 27, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Ryan Kuhlman, Simon Hansmann
  • Patent number: 10384659
    Abstract: A controller of the electric brake device includes a reaction force compensator to perform compensation such that a rotational resistance, of an electric motor, generated by a reaction force to a pressing force of a friction member against a brake rotor is cancelled out. The reaction force compensator includes: a direct estimator to directly estimate the reaction force from information including at least either a drive voltage or current of the electric motor and at least either a rotational angle of the electric motor or a value obtained by differentiating the rotational angle one or more times; an indirect estimator to estimate the reaction force from an estimated braking force on the basis of a set correlation; and a compensation reaction force determiner to determine a reaction force, to perform the compensation, by using estimation results of direct estimation and indirect estimation at predetermined proportions.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: August 20, 2019
    Assignee: NTN CORPORATION
    Inventor: Yui Masuda
  • Patent number: 10351119
    Abstract: An automated parking brake for a motor vehicle having at least one brake device is configured to adopt at least two states. In a first state, no clamping force is established by the parking brake, and in a second state, a clamping force is established by the parking brake. A transition point defines a transition between the two states. An identification of the transition point is carried out during a releasing process of the parking brake.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: July 16, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Helmut Wolff, Andreas Englert, Tobias Putzer
  • Patent number: 10328876
    Abstract: An electrical line system for a vehicle, includes a first line arrangement for electrically connecting a first vehicle system to a first controller, a second line arrangement for electrically connecting a second vehicle system to a second controller, and an external sheath which surrounds the first line arrangement and the second line arrangement at least in sections, wherein an isolating medium is arranged within the external sheath, wherein the isolating medium is designed to surround the first line arrangement and the second line arrangement and to keep the line arrangements at a distance from the external sheath in order to reduce a pull-off force when pulling off the external sheath.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: June 25, 2019
    Assignee: Continental Teves AG & Co. oHG
    Inventors: Akihiro Koeda, Isao Ohno, Alejandro Gonzalez, Hideki Sakai
  • Patent number: 10293799
    Abstract: Methods for transitioning a braking system between primary and fallback modes are provided. A method in accordance with the present disclosure may include identifying a failure in the functionality of the primary braking system, and, upon identifying the failure, mitigating an abrupt increase in a pedal travel distance required to brake or otherwise decelerate the vehicle so as to provide smooth transition from a primary braking mode to a fallback braking mode. The mitigating the increase in the pedal travel distance may include initiating a transition to the fallback braking mode, activating at least one of a plurality of transition braking modes, and gradually increasing the pedal travel distance by deactivating at least one of the previously activated transition braking modes.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: May 21, 2019
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventor: Brandon Beauvais
  • Patent number: 10286890
    Abstract: A wake-up device for a brake system component of a vehicle includes a magnet that is arranged to be set, via a transmission device, in rotational motion jointly with a shifting of a driver brake force transmission component, thereby effecting a relative motion between the magnet and an electrical conductor. The relative motion induces an induction voltage. An output device outputs the induction voltage or a wake-up signal generated based on the induction voltage to the brake system component, thereby controlling the brake system component to transition from a first energy use mode to a second energy use mode. A method includes controlling the brake system component to transition from the first energy use mode to the second energy use mode by outputting the induction voltage or wake-up signal generated as described above.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: May 14, 2019
    Assignee: ROBERT BOSCH GMBH
    Inventors: Jochen Mayer, Joerg Riethmueller
  • Patent number: 10252736
    Abstract: A system for controlling grade of automation (GOA) of train operation includes an onboard information recording unit that is used to record a first set of GOAs; an onboard switch of GOA of train operation that is used to switch a value of GOA of train operation of the train; an onboard train positioning information acquisition unit that is used to collect current positioning information of the train; and an onboard controlling and processing unit that is used to determine a current GOA relating to the train.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: April 9, 2019
    Assignee: COORDEM TRANSPORT TECH. CO., LTD.
    Inventor: Mancang Hou
  • Patent number: 10183685
    Abstract: A ride control system for controlling a plurality of vehicles on a path includes a path processor and a bi-directional voting circuit in circuit with the path processor. Each vehicle of the plurality of vehicles may include a vehicle processor supported by the at least one vehicle and shunt relays in circuit with the at least one vehicle processor. Each vehicle processor may be configured to close a respective shunt relay upon a predetermined condition of the vehicle whereby the bi-directional voting circuit is activated to notify all other vehicles.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: January 22, 2019
    Assignee: Universal City Studios LLC
    Inventors: Steven Morris King, Henry William Long
  • Patent number: 10166956
    Abstract: A method of detecting a leak in a hydraulic trailer brake circuit of a trailer includes providing a controller, a base valve, a first sensor, a second sensor, a control valve having a solenoid, a reduction valve, a hydraulic fluid supply, a first brake output, and a second brake output. The method also includes supplying a first pressure to an inlet of the base valve and outputting a second pressure from an outlet of the base valve to the first brake output. The first pressure is detected by the first sensor and the second pressure is detected by the second sensor, and the detected first and second pressures are communicated to the controller. The difference between the first and second pressures are compared to a threshold, and a leak is detected in the hydraulic trailer brake circuit if the difference satisfies the threshold.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: January 1, 2019
    Assignee: DEERE & COMPANY
    Inventors: Troy E. Schick, Ryan A. Pence, Brandon J. McMillen, Aaron M. Quinn
  • Patent number: 10161984
    Abstract: A solenoid is determined abnormal if a current flowing therethrough at a certain duty ratio falls within an abnormal range. After the abnormal determination, a first duty ratio is used to cause a current to flow through the solenoid at such a current value within a first range as to not drive the solenoid valve. The solenoid is determined provisionally normal if the current at the first duty ratio falls within the first range. After the provisionally normal determination, a second duty ratio is used to cause a current to flow through the solenoid at such a current value within a second range including a current value range greater than the first range as to drive the solenoid valve. The solenoid is determined normal if the current at the second duty ratio falls within the second range.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: December 25, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroki Mima
  • Patent number: 10160434
    Abstract: A method for determining defects of an automated parking brake for a motor vehicle with at least one brake device includes detecting damage to the parking brake on the basis of a time profile of a variable representing an output torque of a parking brake actuator. The parking brake includes the parking brake actuator configured to be activated. The detection of the damage includes analyzing the time profile of the variable representing the output torque of the parking brake actuator during a first phase of an activation process of the parking brake for the identification. The activation process of the parking brake has at least two phases. A first phase of the activation process includes a no build up or reduction of a clamping force between at least one brake lining and a brake disk. A second phase includes a build up or reduction of the clamping force.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: December 25, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Frank Baehrle-Miller, Tobias Putzer
  • Patent number: 10086810
    Abstract: A method for stabilizing a vehicle combination including a towing vehicle and at least one trailer vehicle includes determining wheel revolution rates of a driven axle of the towing vehicle and a vehicle speed of the towing vehicle, checking, as a first criterion, whether there is braking wheel slip at the driven axle of the towing vehicle without the operation of a wheel brake of the driven axle of the towing vehicle, and actuating, in response to the first criterion being met, at least one wheel brake of the trailer vehicle.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: October 2, 2018
    Assignee: WABCO GmbH
    Inventors: Hartmut Binder, Thomas Lenz, Dirk Wohltmann
  • Patent number: 10065622
    Abstract: A second ECU determines whether or not there is an abnormality in a hydraulic-pressure sensor in a first cycle based on a detection value of the hydraulic-pressure sensor, and outputs a signal indicating a determination of an occurrence of the abnormality to a first ECU via a signal line when determining the occurrence of the abnormality in the hydraulic-pressure sensor. The first ECU receives the detection value of the hydraulic-pressure sensor through communication from the second ECU via the signal line to determine whether or not there is the abnormality in the hydraulic-pressure sensor in a second cycle that is shorter than the first cycle. When determining that the hydraulic-pressure sensor is abnormal, the first ECU controls driving of an electric actuator based on a braking command from an operation-amount detection sensor without using the detection value of the hydraulic-pressure sensor determined to be abnormal.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: September 4, 2018
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Masayuki Kikawa, Daisuke Goto, Kentaro Ueno, Toshiyuki Innami, Tatsuji Ohkubo
  • Patent number: 10040437
    Abstract: Towed vehicles can be extremely heavy. Accordingly, it is too much of a burden to the braking system of a towing vehicle to not have brakes on the towed vehicle. Controlling the brakes of the towed vehicle must be accurately applied otherwise undesirable conditions can be created. There is a need for a method for controlling braking of a towed vehicle. This method comprises receiving a first signal via a communication bus of a towing vehicle, the first signal relating to at least one operating condition of at least one the towing vehicle and a towed vehicle, sending a second signal to brakes of the towed vehicle, the second signal based on said first signal.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: August 7, 2018
    Assignee: HORIZON GLOBAL AMERICAS INC.
    Inventors: Marcia Albright, Chandrakumar Kulkarni, Jerald Prater, Jason Reichard, Dennis Morse, Mark Austin, Pat Burgess, Marvin Hoot, Larry Eccleston, Steve Zavodny
  • Patent number: 10040434
    Abstract: An electromechanical brake booster is provided for a braking system of a vehicle, having a valve body and an input rod, the valve body, to which at a displacement motion in a brake application direction has been imparted, being displaceable up to a differential travel equal to a limit differential travel with reference to the input rod, and then a co-displacement motion in the brake application direction being impartable to the input rod if the co-displacement motion is acted against at most by a retention force below a predefined threshold value, and at least one buffer element being disposed on the input rod and/or on the valve body in such a way that if a retention force above the predefined threshold value acts against the co-displacement motion, the differential travel is increasable above the limit differential travel by way of a deformation of the at least one buffer element.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: August 7, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Manfred Gerdes, Herbert Vollert
  • Patent number: 9889827
    Abstract: Methods and systems are provided for preventing vehicle roll. In one embodiment, a method includes: determining a first switch state; determining a second switch state; evaluating the first switch state and the second switch state to determine whether a condition of a mechanical linkage between a range selection device and a transmission has occurred; and selectively generating at least one of a control signal to control an electronic park brake and a notification message based on the determination.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: February 13, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: David A. Provenza, Michael A. Van Camp, William A. Arnold
  • Patent number: 9868430
    Abstract: An expansion module is disclosed for use in a communication network. The expansion module may include a housing, an input interface connected to the housing and configured to externally connect with at least one analog device, and an output interface connected to the housing and configured to externally connect with the communication network. The expansion module may also include at least one processor located in the housing and configured to receive analog signals from the input interface, to convert the analog signals to digital signals, and to direct the digital signals to the output interface. The expansion module may also include at least one sensor located in the housing and configured to generate digital signals indicative of a performance parameter associated with a fluid in communication with the housing.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: January 16, 2018
    Assignee: Progress Rail Services Corporation
    Inventors: Stephen Harold Humphrey, Marc David Miller, Todd Charles Goergen
  • Patent number: 9856936
    Abstract: An electric brake device includes a brake rotor; a brake pad; an electric motor; a linear motion mechanism configured to convert a rotary motion of the electric motor into a linear motion so as to be transmitted to the brake pad; a controller to control the electric motor; and a brake command device to send a braking force command to the controller. The controller includes an emergency braking detector to detect an emergency braking request; a steady state controller to perform braking in a steady state; and a flux weakening controller to perform flux weakening control. The flux weakening control is performed when the emergency braking detector detects an emergency braking request.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: January 2, 2018
    Assignee: NTN CORPORATION
    Inventor: Yui Masuda
  • Patent number: 9840241
    Abstract: A brake temperature detection device is configured detect brake temperature more accurately. In a situation in which the temperature in the vicinity of the brake has risen above the atmospheric temperature, indicated by a value read off of the detection signal of the temperature sensor, for example when traveling in congested traffic, a value to correct atmospheric temperature is determined, and atmospheric temperature is corrected on the basis of that atmospheric temperature correction value. Subsequently, brake temperature is calculated on the basis of the corrected air temperature. As a result of this configuration, it is possible to have the calculated brake temperature approach the actual brake temperature. This makes it possible to detect brake temperature more accurately.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: December 12, 2017
    Assignee: ADVICS CO., LTD.
    Inventors: Shunsuke Murata, Tetsuaki Tsuzuki, Kentaro Yuasa
  • Patent number: 9815374
    Abstract: A braking grid cooling system may include a fan having a hub supporting a rotor and at least partially enclosing a stator, and a plurality of fan blades connected to and projecting radially from the hub; and a dynamic braking grid receiving the fan in a nested relation such that a combined height of the grid and the fan is less than a sum of a height of the grid and a height of the fan.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: November 14, 2017
    Assignee: DAYTON-PHOENIX GROUP, INC.
    Inventors: Gabriel E. Widmer, Bryan E. Ladd, Justin P. Widmer
  • Patent number: 9802586
    Abstract: In a method for providing the clamping force generated by a parking brake, the roadway incline is measured and in the case that the roadway incline exceeds a threshold value, a reengagement process is carried out after a defined time period has elapsed.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: October 31, 2017
    Assignee: ROBERT BOSCH GMBH
    Inventors: Frank Baehrle-Miller, Dieter Blattert, Hubertus Wienken
  • Patent number: 9783174
    Abstract: A control device for an electric parking brake controls a motor for driving a friction member of the electric parking brake. The control device includes a processing unit which starts the motor in order to drive the friction member to a direction for placing the electric parking brake in a locked state; measures a current value of the motor in an operating state thereof; determines a cut-off current value from the measured current value of the motor according to a predetermined rule defining a correlation between the cut-off current value of the motor, by which a braking force necessary for the electric parking brake in the locked state is generated, and an increasing rate of the current; and stops the motor when the current value of the motor reaches the determined cut-off current value.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: October 10, 2017
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Misako Imai, Hidekazu Hori, Hideki Kakizaki
  • Patent number: 9764609
    Abstract: Methods and apparatus are provided for warming a tire of a driven wheel of a vehicle, in which the vehicle includes one or more driven wheels and one or more non-driven wheels. The method includes determining a range of a transmission associated with the vehicle and determining a position of a throttle pedal associated with an engine of the vehicle. Based on the determined range of the transmission and the determined position of the throttle pedal, the method includes outputting one or more control signals to apply a braking force to the one or more non-driven wheels of the vehicle and outputting one or more control signals to drive the one or more driven wheels to warm the tire of the one or more driven wheels.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: September 19, 2017
    Assignees: KELSEY-HAYES COMPANY, GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: J. William Handzel, Jr., Patrick Hartman
  • Patent number: 9718363
    Abstract: The invention relates to a motor vehicle comprising: a number of wheels; a brake system having hydraulically actuatable brakes corresponding to each wheel; at least one brake circuit via which the brakes can be actuated; a brake booster via which the brake circuit can be operated, said brake booster being actuatable via a brake pedal to be actuated by the driver; and at least one pressure generation device and/or pressure accumulator device, which can be controlled by a control device, and via which the hydraulic pressure inside the brake circuit can be modulated. At least one electric motor (9) is provided, which motor is used in the event of a detected failure inside the brake system (2) to generate a deceleration torque by automatically switching into a generator operation, in order to brake the vehicle (1) until same has reached a standstill.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: August 1, 2017
    Assignee: AUDI AG
    Inventor: Martin Stemmer
  • Patent number: 9676403
    Abstract: A vehicle control system and method determine one or more designated speeds of a trip plan for a trip of a vehicle system along a route. The trip plan can designate the one or more designated speeds as a function of one or more of time or distance along the route for the trip. Geometry of the route that the vehicle system will travel along during the trip is determined, as well as one or more prospective forces that will be exerted on the vehicle system during movement of the vehicle system along the route for the trip based at least in part on the geometry of the route. The trip plan is revised to reduce at least one of the prospective forces by reducing at least one of the designated speeds of the trip plan based on the one or more prospective forces that are determined.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: June 13, 2017
    Assignee: General Electric Company
    Inventors: James Brooks, Harry Kirk Mathews, Jr., Dan Dai, Ramu Sharat Chandra, Gabriel De Albuquerque Gleizer, Bruno Paes Leao, Carlos Gonzaga