Fluid And Electric Patents (Class 303/15)
  • Patent number: 11014585
    Abstract: An ECP overlay system for a W-type triple valve includes a manifold body having a pipe bracket face configured to engage a face of a pipe bracket of a vehicle brake system, a valve face configured to engage a face of a W-type triple valve of a vehicle brake system, and an electric manifold face. The system also includes an electric manifold assembly engaged with the electric manifold face of the manifold body, with the electric manifold assembly having a pneumatic mode here the electric manifold assembly is configured to allow pneumatic-only control of a brake cylinder of vehicle brake system and an ECP mode where the electric manifold assembly is configured to allow electronic control of a brake cylinder of a vehicle brake system.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: May 25, 2021
    Assignee: WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION
    Inventor: Jeffrey B. Skweres
  • Patent number: 10981548
    Abstract: A method for compensating for excessively low actuating dynamics of a mechanical brake of a transportation vehicle, wherein a dividing unit receives a predefinition for a target overall retardation of the transportation vehicle and determines a mechanical target braking torque based on the target overall retardation and signals the same to the mechanical brake. The dividing unit predicts a mechanical actual braking torque of the brake by a model of the brake actuator and, based on the predicted mechanical actual braking torque, by activating at least one predetermined transportation vehicle component that is different from the mechanical brake, to generate a compensation torque, by which a control deviation which results when adjusting the mechanical actual braking torque to the mechanical target braking torque is compensated and the target overall retardation results in the transportation vehicle.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: April 20, 2021
    Assignee: Volkswagen Aktiengesellschaft
    Inventors: Oliver Busse, Frank Hausdörfer
  • Patent number: 10933852
    Abstract: A fluid-operated braking system (1) for a tractor-trailer vehicle includes a trailer control valve (2), a parking brake module (3), and an electronic control unit (4) electrically connected to the trailer control valve (2) and to the parking brake module (3). A pressure fluid accumulator (13) of the braking system (1) is connected to a control pressure input (P43) of the trailer control valve (2). A redundancy circuit controls the control pressure input (P43), even during a malfunction of the control unit (4). The parking brake module (3) includes a control valve (14), a redundancy valve (15) and a changeover valve (16) controlled by an electronic switch unit (20) with a holding function. When the control unit (4) malfunctions, the last error-free switching position of the control valve (14) or the redundancy valve is maintained until a operationally safe resting state is reached or the ignition system is switched off.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: March 2, 2021
    Assignee: WABCO GmbH
    Inventors: Andreas Goers, Thomas Müller, Jakob Friedrich Schmidt
  • Patent number: 10933854
    Abstract: A brake module for a hydraulically braked tractor coupled to a pneumatically braked trailer has a trailer control valve connected via hydraulic control inlet to a hydraulic pressure line leaving a master brake cylinder, and via pneumatic inlet to a compressed air reservoir. Hydraulic control pressure determines pneumatic output pressure level at a trailer control valve pneumatic outlet. The brake module has a break-off prevention module which, if the control line leaks or separates from the trailer control valve relative to the trailer brake system, closes a supply pressure coupling head supply line and causes trailer brake system venting. The break-off prevention module has a pneumatic supply pressure inlet and a pneumatic tear-off control pressure inlet connected to the air reservoir independently of trailer control valve pressure inlets. Supply pressure inlet supply pressure passes through the break-off prevention module and feeds to a trailer control valve pneumatic supply pressure inlet.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: March 2, 2021
    Assignees: WABCO GmbH, AGCO International GmbH
    Inventors: Mirko Bruett, Georg Frank, Stefan Prestel, Jan Spremberg
  • Patent number: 10906513
    Abstract: Disclosed herein is an electronic brake system.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: February 2, 2021
    Assignee: MANDO CORPORATION
    Inventor: Hans Joerg Feigel
  • Patent number: 10900348
    Abstract: Coriolis direct wellhead measurement devices and methods are provided. The devices and methods allow for continuous monitoring, more frequent data, and greater accuracy in quantitative and qualitative measurements of well performance. In an embodiment: an entrained gas severity of a wellhead is determined based on a determined drive gain threshold, at least one variable is output based on the determined entrained gas severity, and a respective confidence indicator correlating to the at least one variable is output. One mode of operation includes continually averaging the at least one variable over a predetermined time interval and outputting a respective single averaged data value. Another mode of operation includes outputting at least one instantaneous variable at predetermined and uniform time intervals. Diagnostic information and user alerts are also output to provide reliable decision making information to an operator.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: January 26, 2021
    Assignee: Micro Motion, Inc.
    Inventors: Frederick Scott Schollenberger, Joel Weinstein
  • Patent number: 10843673
    Abstract: A method for controlling a compressed air brake system of a vehicle includes outputting an analog driver brake pressure via a brake pressure control line during driver braking by operating a brake pedal, a switching device set in a driver braking position to a brake circuit with at least one ABS stop valve device, a brake line, and a wheel brake. The method additionally includes, in the presence of both driver braking and the external brake demand signal, measuring the driver brake pressure and determining a driver brake pressure value. Furthermore, the method includes forming a combined brake pressure value by adding or superimposing the driver brake pressure value and an external brake pressure value contained in the external brake demand signal, and switching the switching device into the functional position and controlling the combined brake pressure value from the system pressure by actuating the ABS stop valve device.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: November 24, 2020
    Assignee: WABCO GMBH
    Inventors: Daniel Hanslik, Stephan Kallenbach, Alexander Wendlandt
  • Patent number: 10807581
    Abstract: A driver brake valve for a compressed air brake system of a commercial vehicle is configured to be controlled by a brake pedal and is further configured to output an analog driver braking pressure and an electrical sensor desired signal in dependence upon the actuation of the brake pedal. The driver brake valve includes a compressed air input configured to connect to a system pressure, a compressed air output configured to connect to a brake control line, a sensor configured to determine an actuation of the brake pedal, a characteristic curve storage device configured to store characteristic curve data, and a determining device. The sensor is configured to generate an actuating signal in dependence upon the actuation of the brake pedal. The determining device is configured to generate a sensor desired signal from the actuating signal in dependence upon the characteristic curve data.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: October 20, 2020
    Assignee: WABCO EUROPE BVBA
    Inventors: Arnd Gaulke, Torsten Wallbaum
  • Patent number: 10766471
    Abstract: A system in which the device connecting the brake pedal to the brake actuator includes a control rod and a thrust rod guided in a cylinder, connected to the rod by a ball joint and returned by a spring. The end of the rod comprises a spherical cap having a spherical front bearing surface and a flat rear surface, perpendicular to the axis of the rod. A centering sleeve freely surrounding the control rod presses with its front edge against the rear face of the cap, pushed by a centering spring bearing on the thrust rod and on the centering sleeve to tilt the spherical cap and the rod toward the axis of the thrust rod.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: September 8, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Chris Anderson, Florent Yvonet, Raynald Sprocq
  • Patent number: 10696286
    Abstract: Disclosed are an electronic brake system and a control method thereof.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: June 30, 2020
    Assignee: MANDO CORPORATION
    Inventor: Hyojin Jeong
  • Patent number: 10688870
    Abstract: A device and method controls the different energy sources for supplying a vehicle with main and auxiliary air, for which compressed air is produced for pressurizing a main air tank and an auxiliary air tank using at least one compressor. That compressor is driven via a respective associated electric motor, wherein the main air is supplied via an external primary energy source and the auxiliary air is supplied at least partially via an internal secondary energy source which is weaker in contrast. There is a shift between the two different energy sources depending on the operating status of the vehicle, wherein the auxiliary air supply is switched off by decoupling the electric motor from the secondary energy source.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: June 23, 2020
    Assignee: KNORR-BREMSE SYSTEME FÜR SCHIENENFAHRZEUGE GMBH
    Inventors: Thomas Merkel, Boris Wittich, Martin Kutschker, Martin Linner
  • Patent number: 10611348
    Abstract: A braking system operable independent of driver input, where the braking system includes a primary brake system, a secondary brake system, a primary controller controlling fluid pressure in the primary brake system, and a secondary controller controlling fluid pressure in the secondary brake system independently of the primary controller. There is also an actuator which is part of the primary brake system, where the actuator is controlled by the primary controller. A reservoir is in fluid communication with both the primary brake system and the secondary brake system, to supply fluid to both the primary brake system and the secondary brake system. The primary controller selectively actuates the actuator to control the fluid pressure in the primary brake system independently of driver input, to provide braking capability to a fully autonomous driving vehicle.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: April 7, 2020
    Assignee: Continental Automotive Systems, Inc.
    Inventors: Thomas Zipfel, Yuji Nakayasu, James Rizzo
  • Patent number: 10604017
    Abstract: An electric braking device includes: a first valve unit for adjusting a first differential pressure between a master cylinder side liquid pressure and a wheel cylinder side liquid pressure; a storage unit forming a fluid storage chamber; second valve units for adjusting a second differential pressure between the master cylinder side liquid pressure and a storage chamber side liquid pressure; an electric pump for discharging the fluid in the storage chamber; and a control unit which, while operating the electric pump during a time from initiation of braking force application until a request value acquired by a request braking force acquiring unit reaches a maximum value, controls the first valve unit such that the first differential pressure becomes zero, and controls the second valve units such that the second differential pressure becomes zero.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: March 31, 2020
    Assignee: ADVICS CO., LTD.
    Inventors: Masaki Maruyama, Takahiro Yamaguchi, Koichi Kokubo
  • Patent number: 10549731
    Abstract: A vehicle parking brake system includes a power bridge. The power bridge is electrically connected to a primary power source and to a secondary power source. The power bridge has a first condition in which the primary power source is active in which the primary source is electrically connected to a parking brake actuator. The power bridge has a second condition in which the primary power source is not active in which the secondary power source is electrically connected to the parking brake.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: February 4, 2020
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Scott J. Lauffer, John P. Joyce, Daniel A. Gabor, Samer Abbas, Steven R. El Aile
  • Patent number: 10549742
    Abstract: A vehicle trailer brake system and method with a hydraulic control line and supplementary line arranged between a towing vehicle and a towed trailer, wherein the trailer braking system is actuated from the towing vehicle by controlling the hydraulic pressure in the control line and the supplementary line. The trailer brake system may be operated to actuate a trailer brake using a trailer-based hydraulic accumulator, to provide for relatively fast response time for the trailer brake.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: February 4, 2020
    Assignee: AGCO International GmbH
    Inventor: Guillaume Boulivan
  • Patent number: 10525947
    Abstract: The friction brake system includes a braking force distributor configured to output load command values to friction brake devices for a plurality of wheels, and a friction coefficient estimation calculation section configured to estimate a friction coefficient between a brake rotor and a friction material of each friction brake device. The friction coefficient estimation calculation section includes a distribution adjustment section configured to change distribution of brake pressing force to be distributed by the braking force distributor, for estimation of the friction coefficient, and an estimation calculation section configured to estimate the friction coefficient on the basis of a relationship between deceleration of a vehicle and the load command values the distribution of which is changed.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: January 7, 2020
    Assignee: NTN CORPORATION
    Inventor: Yui Masuda
  • Patent number: 10501062
    Abstract: An electronically controllable pneumatic brake system in a vehicle includes wheel brakes for braking respective wheels of the vehicle. Wheel brakes of at least one vehicle axle include spring-loaded cylinders for implementing a pneumatic parking brake in a parking brake braking circuit of the vehicle. The brake system further includes an electronically controllable monostable bypass valve, wherein the monostable bypass valve is disposed between a manually operated parking brake valve and the spring-loaded cylinders. The monostable bypass valve controls, in a first switching position, a bypass control pressure based on an actuation pressure produced by the parking brake valve to implement a manually specified parking brake force. The monostable bypass valve further controls, in a second switching position, a bypass control pressure depending on a venting pressure prevailing in a bypass vent connection to implement an electrically specified parking brake force.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: December 10, 2019
    Assignee: WABCO EUROPE BVBA
    Inventor: Oliver Wulf
  • Patent number: 10464543
    Abstract: The apparatus comprises a sensor for generating a vehicle load signal, weighting devices designed to supply a weighted pneumatic pressure as a function of the load signal, and first and second braking control apparatus, both coupled to the weighting devices and comprising respective relay valves which supply at their outlets respective braking pressures, modulated as a function of said weighted pneumatic pressure, to respective braking actuators associated with the wheels of a respective axle or of a respective bogie of the vehicle. The weighting devices comprise an electro-pneumatic drive assembly which is interposed between pneumatic pressure supply means and the drive inlet of the relay valves and an electronic weighting control unit which controls the drive assembly as a function of the load signal, so as to modulate in a predetermined way the pressure at the drive inlet of the relay valves.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: November 5, 2019
    Assignee: FAIVELEY TRANSPORT ITALIA S.P.A.
    Inventors: Roberto Tione, Roberto Correndo, Giuseppe Lore', Hervé Savary
  • Patent number: 10442419
    Abstract: A brake retarder valve for a tractor-trailer combination includes a valve housing and a valve assembly. The valve assembly includes a poppet valve biased by a spring and a gravity spool. The valve assembly is selectively operable between the operative closed configuration and an open configuration in response to a resultant of the fluid pressure between a trailer axle brake and a tractor axle brake. The tractor axle brake is actuated with a time delay from actuation of the trailer axle brake. This delay is actuation of the tractor axle brake prevents jack knifing of the trailer onto the tractor in a tractor-trailer combination, thereby ensuring safety during operation of a tractor-trailer combination.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: October 15, 2019
    Assignee: Deere & Company
    Inventors: Prashantha Kini, Rajgopal Raibagi, Ravi Ranjan Thakur
  • Patent number: 10427681
    Abstract: A controller for a host vehicle having adaptive cruise control comprises control logic that determines an actual time gap behind a detected target object and transmits a deceleration message having a deceleration value in response to the actual time gap being less than a predetermined minimum time gap. The control logic receives a torque message from a vehicle retarder indicating that the vehicle retarder is at a limit. If the actual time gap is less than the predetermined minimum time gap, the control logic transmits a transmission control message requesting the transmission to shift to a lower gear. The control logic transmits another deceleration message if the actual time gap is still less than the predetermined minimum time gap, wherein at least one of an associated transmission and an associated braking system respond to decelerate the host vehicle in response to the transmission control message and deceleration messages.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: October 1, 2019
    Assignee: Bendix Commercial Vehicle Systems LLC
    Inventors: Mathew J John, Vipin A Guda, Thomas S Miller, Jr.
  • Patent number: 10407084
    Abstract: A pneumatically piloted retainer valve for bottling brake cylinder pressure that can be set and released in response to changes in the brake pipe pressure. Pneumatically piloted retainer valve provides a brake cylinder pressure retaining function that bottles applied brake cylinder pressure in the brake cylinder when brake pipe pressure is less than a predetermined cut-in pressure. Pneumatically piloted retainer valve includes a retainer valve movable between a reset position, where brake cylinder pressure is in communication with exhaust and a bottle position, wherein brake cylinder pressure is isolated from exhaust. A retainer pilot control valve provides for piloting of the retainer valve in response to a predetermined reduction or threshold increase in brake pipe pressure.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: September 10, 2019
    Assignee: NEW YORK AIR BRAKE, LLC
    Inventors: Eric C. Wright, Jason Connell
  • Patent number: 10391992
    Abstract: A braking method is used for a vehicle that has at least one front wheel and at least one rear wheel. A hydraulically actuatable brake is provided at the front wheel and the rear wheel, and an automatic parking brake is provided at the rear wheel. The braking method enables an optimal brake pressure to be built up as rapidly as possible. In a first step of an initiation phase of the braking method, the front wheel is braked by the hydraulically actuatable brakes and the rear wheel is braked exclusively by the automatic parking brake.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: August 27, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Michael Kunz, Tobias Putzer
  • Patent number: 10322640
    Abstract: A vehicle having a traction battery and at least one electric machine for propelling the vehicle is provided. A high voltage DC bus electrically connects the traction battery to the electric machine. A controller monitors and commands power flow through the DC bus, the electric machine, and the battery. In response to a key-off event, the controller immediately discharges the DC bus by providing a current to the electric machines. This discharge continues until the voltage on the DC bus reaches a threshold. As the speed of the electric machine decreases towards a speed threshold, the voltage in the DC bus is maintained. Once the electric machine speed reduces past the threshold, the DC bus discharges the remaining voltage in the DC bus at a rate slower than the first immediate discharge.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: June 18, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Yuan Zhang, Michael W. Degner
  • Patent number: 10259569
    Abstract: A brake system for an aircraft is provided according to various embodiments. The system may include a left pedal arrangement comprising a left pedal, a first left sensor to generate a first left signal in response to translation of the left pedal. The system also includes a right pedal arrangement comprising a right pedal, a first right sensor to generate a first right signal in response to translation of the right pedal. Normal brake control logic controls the brake system in response to a normal condition being set. The normal brake control logic commands a left brake based on the left signal, and a right brake based on the first right signal. Emergency brake control logic controls the brake system in response to an emergency condition being set. The emergency brake control logic commands a same force to the left and right brakes based the left and right signals.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: April 16, 2019
    Assignee: Goodrich Corporation
    Inventors: Eric Cahill, Efrem E. Ayichew
  • Patent number: 10239508
    Abstract: Provided is a brake apparatus having a detachable pump housing. The brake apparatus having a detachable pump housing includes a master cylinder that receives an operating force of a pedal, a main housing in which the master cylinder is accommodated and a through-hole is formed at one side thereof, a motor that provides a driving force, a pump piston that is accommodated in the main housing, and moves in and out of the main housing through the through-hole by receiving the driving force from the motor, a gear unit that converts the driving force of the motor into a linear motion and transmits the linear motion to the pump piston, and a pump housing in which the pump piston is accommodated and an opening is formed at one side thereof, and that is detachably fastened to the main housing such that the opening communicates with the through-hole.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: March 26, 2019
    Assignee: MANDO CORPORATION
    Inventors: Sang-Soo Han, Youngsong Lee
  • Patent number: 10174770
    Abstract: A hydraulic control system for a machine is provided. The hydraulic control system includes a fluid reservoir and a pump motor. The pump motor is fluidly coupled to the fluid reservoir. The pump motor is configured to provide pressurized fluid and to receive fluid to provide a power output to the shaft. The hydraulic control system further includes an actuator and an accumulator fluidly coupled to the pump motor and the actuator. The hydraulic control system further includes an accumulator valve and a controller. The accumulator valve is fluidly coupled between the accumulator and the pump motor. The controller is in communication with the pump motor and the accumulator valve. The controller is configured to detect an operator command to operate the power source; determine pressure at the accumulator; and selectively move the accumulator valve to fluidly connect the accumulator with the pump motor.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: January 8, 2019
    Assignee: Caterpillar Inc.
    Inventors: Jiao Zhang, Dayao Chen, Sudheer Holenarasipura
  • Patent number: 10131336
    Abstract: A valve includes at least one of an electrical port adapted to receive an electronic control signal and a pneumatic control port adapted to receive a pneumatic control signal. The valve also includes a pneumatic delivery port. The pneumatic delivery port is adapted to transmit a pneumatic fluid, based on the at least one of the received electronic control signal and the received pneumatic control signal, from a second independent source to control i) a second associated service brake and ii) delivery of the pneumatic fluid from a first independent source to control a first associated service brake.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: November 20, 2018
    Assignee: Bendix Commercial Vehicle Systems LLC
    Inventors: Paul C. Niglas, Michael D. Tober, David W. Howell, Gerhard Wieder, Adnan Mustapha, Friedbert Roether
  • Patent number: 10106193
    Abstract: A trailer backup assist system for a vehicle reversing a trailer includes a sensor module adapted to attach to the trailer and generate a trailer yaw rate or a trailer speed. The trailer backup assist system also includes a vehicle sensor system that generates a vehicle yaw rate and a vehicle speed. Further, the trailer backup assist system includes a controller that estimates a hitch angle based on the trailer yaw rate or the trailer speed and the vehicle yaw rate and the vehicle speed in view of a kinematic relationship between the trailer and the vehicle.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: October 23, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Erick Michael Lavoie, Donald Jacob Mattern
  • Patent number: 10086806
    Abstract: A vehicle is provided. The vehicle includes a vehicle system. The vehicle system includes a brake-by-wire portion, which also includes a controller. The controller can cause a forced coastdown of the vehicle. The forced coastdown includes performing analyzing conditions of the vehicle system to determine whether the vehicle is in a stable state and to determine an amount of energy available to the vehicle system and automatically applying the forced coastdown when the vehicle is not in the stable state and the amount of energy is less than or equal to a threshold for continued manual operation of the vehicle. The forced coastdown also includes utilizing brake pressure to reduce a speed of the vehicle.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: October 2, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Brandon C. Pennala, Paul A. Kilmurray, Christopher C. Chappell
  • Patent number: 10059184
    Abstract: A drive system, in particular for a self-propelled construction machine, in particular a soil compactor, comprising an internal combustion engine comprising a drive unit, at least one hydraulic circuit with a hydraulic pump that can be driven by the drive unit, as well as a hydraulic-drive support unit with a hydraulic pump/motor assembly and at least one pressure fluid reservoir, wherein the hydraulic pump/motor assembly is or can be drivingly coupled with the drive unit or/and at least one hydraulic circuit, wherein the hydraulic pump/motor assembly can be operated in a charging operating mode by the drive unit or/and at least one hydraulic circuit as a pump to charge at least one pressure fluid reservoir and be operated in an drive support operating mode as a motor to provide a drive support torque for the hydraulic pump of at least one hydraulic circuit, characterized in that the hydraulic pump/motor assembly can be operated in a recirculation operating mode as a motor to start the drive unit.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: August 28, 2018
    Assignee: HAMM AG
    Inventors: Andreas Röhr, Thomas Henker, Ronny Pieske
  • Patent number: 10053064
    Abstract: A braking system for controlling braking of a machine is disclosed. The braking system includes a first set of sensors to detect a first set of information indicative of operational characteristics of an engine and a transmission system. The braking system includes a second set of sensors to detect a second set of information indicative of a load of the machine and a profile of a work surface. The braking system includes a receiving unit to receive a third set of information indicative of a predefined route of the machine. The braking system includes a controller configured to control an actuator for opening and closing of an exhaust port for engine braking, and to control a valve for achieving a predetermined gear-ratio during the engine braking, based on the first set of information, the second set of information, and the third set of information.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: August 21, 2018
    Assignee: Caterpillar Inc.
    Inventors: Xinyu Ge, Hua Gu
  • Patent number: 10046746
    Abstract: A method allows piloting a braking system of a vehicle, the braking system including at least a pair of coupled brake actuators, that includes a pneumatic actuator supplied with a compressed air tank pressurized by a compressor, and an electric actuator.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: August 14, 2018
    Assignee: Volvo Truck Corporation
    Inventors: Lionel Farres, Jean Sebastien Carle
  • Patent number: 10029658
    Abstract: The invention relates to a technique for boosting the brake force of an electrohydraulic motor vehicle brake system in a mode in which, as a result of a mechanical push-through, an actuating force onto a brake pedal acts upon a master cylinder of the brake system. According to an aspect of this technique, the method comprises the steps of: determining a value of a first variable indicating a current deceleration of the vehicle; determining, based on the first variable, a value of a second variable indicating the actuating force; determining, based on the second variable, a required brake boost; and controlling an electromechanical actuator acting upon the master brake cylinder to obtain the required brake boost.
    Type: Grant
    Filed: November 28, 2013
    Date of Patent: July 24, 2018
    Assignee: Lucas Automotive GmbH
    Inventor: Josef Knechtges
  • Patent number: 10029715
    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: December 16, 2016
    Date of Patent: July 24, 2018
    Assignee: NEW YORK AIR BRAKE, LLC
    Inventors: Eric C. Wright, John M. Reynolds
  • Patent number: 10023165
    Abstract: A method for operating a brake system of a vehicle, in particular a motor vehicle, including at least one wheel brake having a displaceable brake piston and an electric motor first actuator of a parking brake and a hydraulic second actuator of an operating brake for displacing the brake piston in each case. For operating the parking brake, the electric motor first actuator is activated in order to set a specifiable target clamping force of the wheel brake. If the maximum clamping force that is achievable by the electric motor first actuator is lower than the target clamping force, then the hydraulic second actuator is activated to provide an additional clamping force.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: July 17, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Frank Baehrle-Miller, Lars Roters, Ulrike Schaefer
  • Patent number: 9994201
    Abstract: An electro-pneumatic braking system including a pneumatic pressure supply pipe, a generator for generating a vehicle load signal, a weighting system designed to supply a weighted pressure which defines a maximum braking pressure, limited as a function of the load signal, and braking control units connected to the weighting system and having a relay valve connected between the pipe and at least one brake cylinder, to cause the application to this cylinder of a controllable braking pressure, equal to or less than the weighted pressure. The weighting system includes an electro-pneumatic drive assembly, interposed between the pipe and the drive inlet of the relay valve and is connected to the pipe through a pressure limiter, and an electronic weighting control unit which controls this drive assembly as a function of the load signal, so as to modulate in predetermined ways the pressure at the drive inlet of the relay valve.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: June 12, 2018
    Assignee: FAIVELEY TRANSPORT ITALIA S. p. A.
    Inventors: Roberto Correndo, Roberto Tione
  • Patent number: 9994241
    Abstract: A rail vehicle includes a vehicle unit having operating device subsystems and a guide system including a first guide system level in which operating device subsystems are networked with one another by using a digital data bus structure, and at least one second guide system level having at least one line set associated with the analog handling of processes in the operating device subsystems. In order to provide a generic rail vehicle in which a high level of safety can be achieved with little outlay on wiring, the vehicle unit includes a guide system interface device having a first interface unit associated with the data bus structure, at least one second interface unit associated with the line set, and a control unit which, in at least one operating mode, is provided for handling the processes through the second interface unit.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: June 12, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventor: Harald Fischer
  • Patent number: 9945298
    Abstract: A vehicle monitoring system for turning off an idling engine comprises a vehicle speed sensor configured to detect a lack of motion, or “stationary status” of a vehicle and emit a parameter correlated to the motion status of the vehicle, a transmission status detector configured to detect a transmission status of the vehicle, an alerting device capable of warning other drivers of a stationary status of the vehicle and a control device. The control device is coupled to the vehicle speed sensor, the transmission status detector and the alerting device, wherein the vehicle speed sensor and the transmission status detector send a signal to the control device and the control device operates in a manner dependent on the motion status of the vehicle and the transmission status of the vehicle.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: April 17, 2018
    Assignee: Vision Works IP Corporation
    Inventors: Alfred S. Braunberger, Beau M. Braunberger
  • Patent number: 9827874
    Abstract: A vehicle includes a front-wheel/rear-wheel motor, a battery and an ECU. The ECU is configured to (i) control the front-wheel/rear-wheel motors, and (ii) control the front-wheel/rear-wheel motors such that a braking torque of a resonance-side motor, when at least one of the rotation speed of the front-wheel/rear-wheel motors is within a resonance range, is smaller than the braking torque of the resonance-side motor, when the rotation speed of the front-wheel/rear-wheel motors are outside the resonance range, and such that the braking torque of a non-resonance-side motor, when at least one of the rotation speed of the front-wheel/rear-wheel motors is within a resonance range, is larger than the braking torque of the non-resonance-side motor, when the rotation speed of the front-wheel/rear-wheel motors are outside the resonance range, during deceleration caused by a braking torque from the front-wheel/rear-wheel motors.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: November 28, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yoshimitsu Takahashi
  • Patent number: 9802629
    Abstract: A system for automatically performing a bail off of the locomotive brakes in response to certain train braking operations without the need for the train operator to manually bail off the locomotive brakes. The system includes a controller that is programmed to determine when an appropriate train braking operation has been requested and to issue commands to the locomotive braking system to cause the locomotive brake cylinder to be reduced to zero pressure or a predetermined minimum pressure. The controller is also programmed to determine when an automatic bail off should be inhibited and/or cancelled depending on ongoing train conditions.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: October 31, 2017
    Assignee: New York Air Brake, LLC
    Inventors: Erich Leonard, Bryan McLaughlin, Daniel James, Peter Greetham
  • Patent number: 9790922
    Abstract: A braking system for a turbine of a wind powered includes a hydraulic machine connected to a drive shaft of the turbine. A pressure regulating valve in the supply line of the hydraulic machine determines the pressure delivered to the supply line by the hydraulic machine. A control that is responsive to the speed of rotation of the drive shaft modulates the pressure regulating valve so as to increase pressure in the supply line as the rotational speed exceeds a predetermined speed to apply a braking force to the drive shaft.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: October 17, 2017
    Assignee: Orenda Energy Solutions Inc.
    Inventors: Christopher Grant, David Vandermeer
  • Patent number: 9759424
    Abstract: A method for providing thermo-acoustic coupling of a gas turbine engine augmentor includes determining acoustic resonances and heat release phase relationships associated with the augmentor. A fuel injector of the augmentor is positioned at an axial position relative to a flame holder of the augmentor in response to the determined acoustic resonances and heat release phase relationships associated with the augmentor. Heat release and acoustic pressure oscillation cycles associated with the augmentor are out of phase by at least approximately 100 degrees.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: September 12, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Jeffery A. Lovett, Derk S. Philippona
  • Patent number: 9731690
    Abstract: A braking system includes a brake pipe, a pressure sensor and a pressure valve, each operatively associated with the brake pipe. The pressure valve is directed to reduce a pressure in the brake pipe in response to data from the pressure sensor, and a secondary pressure sensor is operatively associated with the brake pipe, wherein a pressure in the brake pipe is reduced in to data from the secondary pressure sensor.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: August 15, 2017
    Assignee: Electro-Motive Diesel, Inc.
    Inventor: James David Seaton
  • Patent number: 9707847
    Abstract: A hybrid vehicle includes a braking device configured to apply a frictional braking torque to a vehicle wheel in response to movement of an input member of a brake pedal, an electric motor configured to apply a regenerative braking torque to the vehicle wheel, and a control unit. During braking, the control unit is configured to determine a limit value of the regenerative braking torque that can be generated in accordance with an operating condition of the charging device or the electric motor, and reduce a ratio of the regenerative braking torque to the frictional braking torque before the regenerative braking torque reaches the limit value.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: July 18, 2017
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Keigo Ajiro, Kensuke Nakamura, Takuya Higuchi
  • Patent number: 9669717
    Abstract: A vehicle includes: a friction braking device configured to generate a friction braking force; a generator motor configured to generate a regenerative braking force; and a control unit configured to adjust the friction braking force and adjust the regenerative braking force by controlling energization of the generator motor such that a required braking force that is required by the vehicle is generated, interrupt energization of the generator motor at predetermined timing after timing at which a specific operation, which is a combination of a plurality of operations conducted by an occupant, has completed within a threshold time, and control the generator motor so as to prohibit generation of the regenerative braking force by the generator motor when at least one of the plurality of operations combined as the specific operation has been detected within a specific period back from braking start timing at which the required braking force is generated.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: June 6, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daisuke Nakata, Tetsuya Miyazaki
  • Patent number: 9616876
    Abstract: A verification system for an end-of-train unit for a train having a first pressure sensor for determining the air pressure in a brake pipe, the system including: at least one additional pressure sensor to monitor or sense the air pressure in the brake pipe; and a computer to: receive or determine pressure data from the first pressure sensor; receive or determine pressure data from the at least one additional pressure sensor; compare the pressure data received or determined from the first pressure sensor with the pressure data received or determined from the at least one additional pressure sensor; and implement or facilitate an action based at least partially upon the results of the comparison. An improved end-of-train unit is also disclosed.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: April 11, 2017
    Assignee: Westinghouse Air Brake Technologies Corporation
    Inventor: Theodore E. Allwardt
  • Patent number: 9527491
    Abstract: A brake cylinder limiting valve having a first portion that determines actual brake cylinder pressure and a second portion that determines intended brake cylinder pressure based on brake pipe pressure reduction. The two portions are combined so that brake cylinder pressure will be vented if the actual brake cylinder pressure exceeds intended brake cylinder pressure by a predetermined threshold amount, which is preferably two and one-half times the brake pipe pressure reduction. An exhaust cut-off valve may be used to prevent venting of the brake cylinder pressure if it falls below a predetermined value.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: December 27, 2016
    Assignee: New York Air Brake, LLC
    Inventors: Eric C. Wright, Jason Connell
  • Patent number: 9469286
    Abstract: A system and method for automatically calibrating the flow measurement device of a locomotive air brake control system. The air brake control computer controls activates a magnet valve to create a predetermined flow from the brake pipe through an orifice to exhaust, thereby creating a reference flow value to enable the calibration of the flow measurement device. The system reduces the likelihood of human error and variability by automating the steps necessary for flow measurement calibration under computer control.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: October 18, 2016
    Assignee: New York Air Brake, LLC
    Inventor: John M Reynolds
  • Patent number: 9434366
    Abstract: A parking apparatus is provided for a vehicle. The apparatus comprises an electronic parking brake (EPB) valve having an air outlet port. The apparatus also comprises a pneumatic delivery line interconnecting the air outlet port of the EPB valve and a spring brake system to allow air pressure from the EPB valve to be applied to the spring brake system to maintain parking brakes of the vehicle in released position. The apparatus further comprises a normally-open solenoid valve having an air inlet port which is in communication with the delivery line which interconnects the air outlet port of the EPB valve and the spring brake system, wherein the solenoid valve is operable to vent air pressure from the delivery line and thereby to apply the spring brake system to park the vehicle in response to loss of electrical power to the solenoid valve.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: September 6, 2016
    Assignee: Bendix Commercial Vehicle Systems LLC
    Inventors: David J Taneyhill, Travis G Ramler, John J Kemer, Phillip J Kasper
  • Patent number: 9421957
    Abstract: A braking device includes a guide piston which surrounds the outer periphery of a rod part of a second slave piston, a cup seal which is mounted on the second slave piston, and a seal member which is provided on the guide piston. The second slave piston includes an enlarged diameter portion which comes into contact with an axial-direction surface of the guide piston when the second slave piston is in the initial position, and the enlarged diameter portion is provided with a cut-out section which extends in the internal diameter direction of the second slave piston.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: August 23, 2016
    Assignees: Honda Motor Co., Ltd., Nissin Kogyo Co., Ltd.
    Inventors: Kazuaki Murayama, Jiro Suzuki, Makoto Sawai, Takaaki Ohnishi, Nobuyuki Kobayashi, Motoyasu Nakamura