Torque Sensing Patents (Class 303/112)
  • Patent number: 10737669
    Abstract: A brake control system for a landing gear of an aircraft is provided. The system includes a first control channel for providing brake control signals to one or more brakes on the landing gear, and a second control channel for providing brake control signals to another one or more brakes on the landing gear. At least one of the first control channel and the second control channel is configured to act as an executive in monitoring braking efforts applied by the one or more brakes as compared to braking efforts applied by the another one or more brake, and to cause the braking efforts of at least one of the one or more brakes or the another one or more brakes to be modified in an effort to equalize the braking efforts.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: August 11, 2020
    Assignee: Goodrich Corporation
    Inventor: Eric D. Cahill
  • Patent number: 10661766
    Abstract: A braking system of a work machine includes a pressurized fluid supply, a base valve fluidly coupled to the supply, a proportional control valve fluidly coupled to the supply, and a fluid output configured to be fluidly coupled to a braking system of a trailer. A first fluid path is selectively fluidly coupling the supply to the fluid output via the base valve, and a second fluid path is selectively fluidly coupling the supply to the fluid output via the proportional control valve. The base valve includes a predefined fixed gain and the proportional control valve includes an adjustable ratio.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: May 26, 2020
    Assignee: DEERE & COMPANY
    Inventors: Troy E. Schick, Ryan A. Pence, Brandon J. McMillen, Jordan Tagtow, Aaron M. Quinn
  • Patent number: 10658952
    Abstract: A drive system includes a power converter and a motor powered from the power converter via supply leads. An electromagnetically actuatable brake is disposed on the motor. The brake is able to be supplied and is therefore controllable from an AC/DC converter, which is powered via lines from a DC/AC converter that is powered and/or controlled by signal electronics of the power converter.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: May 19, 2020
    Assignee: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Josef Schmidt, Michael Geissler, Maja Sliskovic, Dieter Groß, Jürgen Böckle
  • Patent number: 10464647
    Abstract: An outboard motor includes an outboard motor main body, a mount, a turning mechanism, an electric actuator, and a controller. The mount attaches the outboard motor main body to a hull. The outboard motor is turnable around a tilt shaft. The turning mechanism turns the outboard motor main body around the tilt shaft to incline the outboard motor main body. The electric actuator supplies a driving force to the turning mechanism. The outboard motor includes an inclination angle sensor that detects an inclination angle of the outboard motor main body. The controller energizes the electric actuator in response to an operation switch and performs energization limiting control to limit energization of the electric actuator when a magnitude of a rate of change of the inclination angle is equal to or less than a predetermined determination threshold for a predetermined duration of time.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: November 5, 2019
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Kota Tokuda
  • Patent number: 10351057
    Abstract: An in-vehicle production lighting system includes: an acceleration sensor configured to detect an acceleration of a vehicle; light emitters arranged at a prescribed position in a cabin of the vehicle and capable of changing light intensity and light color in a prescribed lighting pattern; and a controller configured to generate or select the prescribed lighting pattern depending on a detection result obtained by the acceleration sensor and control the light emitters.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: July 16, 2019
    Assignee: YAZAKI CORPORATION
    Inventor: Tomonori Ohashi
  • Patent number: 10227021
    Abstract: A road load module is configured to determine a road load torque to maintain zero vehicle acceleration. An initialization module is configured to determine an initial torque based on the road load torque. A closed loop (CL) module is configured to: when a CL state transitions from an inactive state to an active state, set a CL torque to the initial torque; and when the CL state is in the active state after transitioning to the active state, adjust the CL torque based on a difference between a target vehicle speed and a vehicle speed. A motor torque module is configured to determine a motor torque command based on the CL torque and a motor torque request determined based on an accelerator pedal position. A switching control module is configured to, based on the motor torque command, control switching of an inverter and apply power to an electric motor.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: March 12, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Love Lor, Adam J. Heisel, Nathaniel S. Michaluk, Robert L. Morris
  • Patent number: 10173652
    Abstract: A braking system of a work machine includes a pressurized fluid supply, a base valve fluidly coupled to the supply, a proportional control valve fluidly coupled to the supply, and a fluid output configured to be fluidly coupled to a braking system of a trailer. A first fluid path is selectively fluidly coupling the supply to the fluid output via the base valve, and a second fluid path is selectively fluidly coupling the supply to the fluid output via the proportional control valve. The base valve includes a predefined fixed gain and the proportional control valve includes an adjustable ratio.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: January 8, 2019
    Assignee: DEERE & COMPANY
    Inventors: Troy E. Schick, Ryan A. Pence, Brandon J. McMillen, Jordan Tagtow, Aaron M. Quinn
  • Patent number: 10155520
    Abstract: A driver assistance apparatus for a vehicle may be provided with Idle Stop and Go (ISG), and the driver assistance apparatus may include: an interface configured to receive information; and a processor. The processor may be configured to: receive, through the interface, driving information of the vehicle; and based on a determination that the vehicle is stopped in a first state in which the ISG is enabled or that the vehicle is stopped in a second state in which a gearshift of the vehicle is engaged in a Park (P) mode and an engine of the vehicle is turned on, perform a stopping operation for the vehicle based on the driving information of the vehicle.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: December 18, 2018
    Assignee: LG Electronics Inc.
    Inventor: Jeongsu Kim
  • Patent number: 10140116
    Abstract: An embedded modem communicates over a vehicle bus with controllers that each include data storage. The embedded modem queries the controllers over the bus to identify controllers having available storage, such that if the available storage is located on a priority controller, the embedded modem sends received data over the bus to the priority controller. Otherwise, if the available storage is available on a non-priority controller, the embedded modem send the data over the bus to the non-priority controller. The embedded modem queries the controllers over the bus to confirm that the controllers storing the received data are available for data offload, and responsive to the confirmation, requests the stored data over the bus and transmits the stored data over a wide-area network to a telematics server.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: November 27, 2018
    Assignee: Ford Global Technologies, LLC
    Inventor: Brunilda Bleta Caushi
  • Patent number: 10000194
    Abstract: Various embodiments of an apparatus and method for monitoring a brake operation are disclosed. In accordance with one aspect, the brake operation monitoring system comprises a plurality of wheel speed sensors, a brake demand sensor; a plurality of stability sensors and a controller. The controller comprises wheel speed ports; a brake demand port; stability sensor ports; a communication port for receiving a plurality of messages; and a processing unit comprising control logic. The control logic receives a brake demand signal, at least one stability signal indicative of the cornering of the vehicle, and individual wheel speeds. The control logic calculates a master value to compare to individual wheel speed signals if the brake demand signal indicates no braking.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: June 19, 2018
    Assignee: Bendix Commercial Vehicle Systems LLC
    Inventor: Mark A Bennett
  • Patent number: 9994204
    Abstract: The vehicular brake system includes a hydraulic brake device and an electromechanical brake device. The electromechanical brake device includes: an electric motor; a braking force application mechanism to apply, to wheels, a braking force having a value based on an output from the electric motor; and a control device to control the electric motor. A brake operation input detector to detect an input of a brake operation is provided. The control device includes: determination section to determine whether a vehicle speed detected by vehicle speed detector is less than or equal to a predetermined vehicle speed; and operation limiter to limit or halt an output from the electric motor even when the brake operation input detector detects an input of a brake operation in a case where the determination section determines that the vehicle speed is less than or equal to the predetermined vehicle speed.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: June 12, 2018
    Assignee: NTN CORPORATION
    Inventor: Makoto Yasui
  • Patent number: 9694796
    Abstract: A hill-hold control system for a vehicle. The hill-hold control system includes a first wheel brake (120A, 120B), a second wheel brake (120C, 120D), a braking indicator (brake pedal), a drive away indicator (accelerator), and a controller (130). The controller is configured to determine that the vehicle is at standstill, detect from the braking indicator that braking is no longer desired, adjust a braking pressure at the first wheel brake, adjust a braking pressure at the second wheel brake, detect from the drive away indicator an operator's desire to drive away, and when the operator's desire to drive away is detected, removing the braking pressure at the first wheel brake and the braking pressure at the second wheel brake.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: July 4, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Jiamu Hu, James Timpa, Joseph J. Anderson, Dushyant Wadivkar, Arthur Stephenson, Nick LaPlaca
  • Patent number: 9604622
    Abstract: A vehicle electric braking device wherein: a first degree of contribution associated with the actual pressing force value and a second degree of contribution associated with an estimated pressing force value, are determined based on operation amount of a braking operation member; the second degree of contribution is determined to be larger than the first degree when the operation amount is small; the first degree of contribution is determined to be larger than the second when the operation amount is large; a combined pressing force is calculated based on a value obtained by accounting for the first degree of contribution in the actual pressing force value and a value obtained by accounting for the second degree of contribution in the estimated pressing force value; and an electric motor target power supply amount is calculated based on the combined pressing force and a target pressing force calculated from the operation amount.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: March 28, 2017
    Assignee: ADVICS CO., LTD.
    Inventors: Yoshiyuki Yasui, Hiroyuki Kodama, Yusuke Oshio
  • Patent number: 9555784
    Abstract: A braking system for a machine includes a first valve assembly having a first electronically actuated proportional valve, and a second valve assembly having a second electronically actuated proportional valve. The braking system includes a first pressure sensor and a second pressure sensor disposed downstream of the first and second valve assemblies, respectively. The first and second pressure sensors are configured to determine a first pressure and a second pressure of a braking fluid from the first and second valve assembly. The braking system also includes a controller configured to receive a signal indicative of the first pressure and the second pressure of the braking fluid and compare the first pressure and the second pressure. The controller is configured to selectively actuate at least one of the first electronically actuated proportional valve and the second electronically actuated proportional valve to substantially equalize the first pressure and the second pressure.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: January 31, 2017
    Assignee: Caterpillar Inc.
    Inventors: Bryan D. Van Dyke, Ethan M. Tevis, Dwanz M. Mwasi, Michael R. Kunde, Aaron P. Hofner, Steven E. Johnson, Chad L. Kassube, Matthew D. Meads
  • Patent number: 9440632
    Abstract: Various embodiments of an apparatus and method for monitoring a brake operation are disclosed. In accordance with one aspect, the brake operation monitoring system comprises a plurality of wheel speed sensors, a brake demand sensor; a plurality of stability sensors and a controller. The controller comprises wheel speed ports; a brake demand port; stability sensor ports; a communication port for receiving a plurality of messages; and a processing unit comprising control logic. The control logic receives a brake demand signal, at least one stability signal indicative of the cornering of the vehicle, and individual wheel speeds. The control logic calculates a master value to compare to individual wheel speed signals if the brake demand signal indicates no braking.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: September 13, 2016
    Assignee: Bendix Commercial Vehicle Systems LLC
    Inventor: Mark A Bennett
  • Patent number: 9403519
    Abstract: The object of the present invention is to provide a vehicle brake system capable of appropriately setting an upper limit value of hydraulic pressure of a by-wire brake during stopping of a vehicle in accordance with conditions. When the vehicle is stopped, a maximum allowable drive voltage calculation unit sets a maximum allowable drive voltage to V2, and sets a brake pressure generated by a motor to P2. When the vehicle is stopped, if a duration time of stopping of the vehicle or a duration time of generation of the brake pressure exceeds a reference value, the maximum allowable drive voltage calculation unit sets the maximum allowable drive voltage to V3, and sets the brake pressure generated by the motor to P3 which is lower than P2.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: August 2, 2016
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takashi Shimada, Soichiro Ueura, Kazuharu Kidera
  • Patent number: 9221340
    Abstract: A control system for a machine having a transmission system is provided. The control system includes a wheel speed sensor and a controller. The wheel speed sensor is configured to generate a signal indicative of a wheel speed. The controller is in communication with the wheel speed sensor. The controller is configured to modulate a parameter of a power source based, at least in part, on a comparison of the wheel speed and a localized speed of the machine near the wheel.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: December 29, 2015
    Assignee: Caterpillar Inc.
    Inventors: Brian A. Byers, David R. Wisley, Fazal A. Goraya, Gerard O. McCann, Justin L. Steinlage, Kevin Grover, Nathan S. Pauli, Yun Liu
  • Patent number: 9175701
    Abstract: A method for efficiently decelerating a vehicle having front and rear wheel brakes by isolating the rear wheel brakes and applying pressurized brake fluid only to the front wheel brakes.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: November 3, 2015
    Assignee: Kelsey-Hayes Company
    Inventor: Arnold H. Spieker
  • Patent number: 9150176
    Abstract: A device and a method for triggering passenger protection systems, the passenger protection systems being triggered as a function of a rollover process. A signal which characterizes a road grip coefficient (coefficient of friction) is received via an interface. An evaluation circuit is provided which triggers the passenger protection systems as a function of the signal and a stability factor, the evaluation circuit determining the stability factor as a function of at least one kinematic variable.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: October 6, 2015
    Assignee: ROBERT BOSCH GMBH
    Inventors: Marc Andre Tichy, Michael Schmid, Alfons Doerr, Holger Denz
  • Patent number: 9062618
    Abstract: A system and method for controlling an automatic stop-start system of an automotive vehicle is disclosed. The system monitors the status of the parking brake to determine if the parking brake is in a state of transition between an applied state and a released state (in either direction). If the parking brake is in a state of transition, then the automatic re-starting of the engine is inhibited until the parking brake is no longer in a state of transition.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: June 23, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Eric Michael Rademacher, Kirk Pebley, Karl-Peter Hesseler, David Anthony Symanow, Donna L. Bell
  • Patent number: 9020725
    Abstract: A brake control system and method for motor vehicles is provided with an electronic control unit, by which, when the motor vehicle is stationary, a parking brake function can be activated manually or automatically. Its deactivation occurs upon reaching a predefined release condition. In the presence of a release condition the brake pressure, which was built up for the parking brake function, is released in a time offset manner at least in relation to the axles of the vehicle by way of the control unit.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: April 28, 2015
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventor: Guenther Sokoll
  • Patent number: 8812202
    Abstract: A drive controller of an operating machine configured to drive a structure by a hydraulic motor and an electric motor includes: a remote control valve configured to determine the operation amount of the structure; an electric motor torque calculation portion configured to calculate torque of the electric motor; a hydraulic motor torque calculation portion configured to calculate torque of the hydraulic motor; a controller configured to transmit an opening position control signal to the control valve based on the operation amount determined by the remote control valve such that torque necessary to drive the structure is obtained from the torque of the electric motor and the torque of the hydraulic motor; and solenoid-operated reducing valves and each configured to reduce a pilot pressure, to be applied to the control valve, based on the opening position control signal output from the controller.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: August 19, 2014
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Ryo Yamamoto, Masahiro Yamada, Yoji Yudate
  • Patent number: 8770351
    Abstract: A disk brake device for rail vehicles includes a brake disk for attachment to a chassis and a brake assembly for providing a braking force. The brake assembly has a brake cylinder and a brake caliper that carries a brake pad for cooperating with the brake disk. A sensor is provided on a force transmission path from the brake cylinder to the brake pad. The sensor is configured and arranged to detect a force transfer to the brake disk.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: July 8, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventor: Gerhard Engels
  • Patent number: 8571779
    Abstract: A brake control apparatus is provided with a frictional braking unit configured to generate frictional braking force, a regenerative braking unit configured to generate regenerative braking force, a fluid pressure control valve configured to adjust an operating fluid pressure, and a controlling unit configured to execute regenerative control to cover entire required braking force required by a driver by the regenerative braking force and executing switching control to cover the required braking force by the frictional braking force in place of the regenerative braking force by adjusting to increase the operating fluid pressure by the fluid pressure control valve when a predetermined condition is satisfied. By covering the entire required braking force by regenerative braking force and executing the switching control to adjust to increase the operating fluid pressure by the fluid pressure control valve to cover the required braking force when a predetermined condition is satisfied.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: October 29, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Eiji Nakamura
  • Patent number: 8463462
    Abstract: Systems and methods are provided that may he useful for testing braking systems for use in, for example, an aircraft. A system is disclosed that allows for built in testing. For example, a method if provided comprising sending, from a brake controller, a test command set to at least one of an electromechanical actuator (EMAC) and a brake servo valve (BSV) in response to a landing gear retraction, receiving, at the brake controller, feedback from the at least one of the EMAC and the BSV in response to the test command set, and comparing, at the brake controller, the feedback with a predetermined signature.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: June 11, 2013
    Assignee: Goodrich Corporation
    Inventor: Eric D. Cahill
  • Patent number: 8423253
    Abstract: A torque applying device is provided for applying a driving torque to at least a pair of wheels, and a torque restraining device is provided for restraining the torque created on the wheels to be applied with the torque by the torque applying device. A friction braking device is provided for applying a braking torque to each wheel in response to operation of a brake pedal. An automatic braking control device automatically actuates the friction braking device independently of operation of the brake pedal, to apply the braking torque to each wheel. And, a torque restraining cancellation device is provided for cancelling the torque restraining operation for a time period determined in response to a vehicle speed decreasing state, after a condition for initiating the automatic braking control was fulfilled.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: April 16, 2013
    Assignee: Advics Co., Ltd.
    Inventors: Yukio Mori, Koicho Kokubo
  • Patent number: 8412436
    Abstract: A hill start assistance method for a user of a vehicle having a braking system and an electronic braking control, provided with at least one master cylinder pressure sensor, whereby the pressure on each caliper of the vehicle can be controlled. The method includes: estimating the torque transmitted by the clutch, recording information corresponding to the value of the master cylinder pressure resulting from a user's actuation of the brake pedal, and recording the information recorded corresponding to the value of the master cylinder pressure when the user actuates the brake pedal again by pressing harder on the pedal or partially releasing same. When the user releases the brake pedal fully, the braking system maintains the pressure on the calipers for a predetermined period of time, as a function of a pressure set value equal to the value of the last item of information recorded.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: April 2, 2013
    Assignee: Renault S.A.S.
    Inventors: Mickael Mallet, Richard Pothin
  • Patent number: 8201668
    Abstract: A device for decelerating or braking a moving mass includes a movably guided coupling member for pressing a brake lining against a braking surface and a brake actuator, filled with hydraulic liquid and connected to the coupling member, for generating a pressure force that can be passed into the brake lining through the coupling member. The brake lining is connected to a pressure transducer that can be fastened on a frame of the mass to be decelerated or braked through a connecting device. The pressure transducer has a hydraulic liquid-filled supporting cylinder and a supporting piston interacting therewith. The supporting cylinder communicates with a brake cylinder through hydraulic lines. This allows an improved adjustment of deceleration or braking. For this purpose, a regulating device adjusts the brake force depending on a predetermined theoretical value.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: June 19, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Toni Schiffers, Christian Stammen
  • Patent number: 8140230
    Abstract: The present invention provides an improved method and apparatus for regulating active damping in a hybrid vehicle powertrain. The method includes: monitoring the damping command sent to the active damping system; determining a mean reference point, which may be a filtered value of the damping torque command; determining if the unfiltered damping torque command value switches from one side to the other of the mean reference point; if a switch is detected, determining if the size of the switch exceeds a predetermined minimum; if it does, then increasing a total number of switches; determining if the total number of switches exceeds a switch threshold; if the total number of switches exceeds the switch threshold, determining if the current damping torque exceeds a damping torque threshold; and decreasing the damping torque if the total number of switches exceeds the switch threshold and the current damping torque exceeds the damping torque threshold.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: March 20, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Michael D. Haggerty, Robert L. Morris, R. Anthony Hansen
  • Patent number: 8135517
    Abstract: A control method of the torque of a road vehicle having a powertrain system provided with an engine and a driveline which transmits the torque generated by the engine to the road surface; the method contemplates the steps of: determining a target torque; modeling the powertrain system as a single physical component which presents a characteristic mechanical inertia and a characteristic torsional elasticity; determining a current load torque of the vehicle; determining a target torsion of the powertrain system according to the target torque and the current load torque; determining a current torsion of the powertrain system and a current torsion speed of the powertrain system; determining a requested torque on the basis of the energy balance according to the target torsion, the current torsion, the current torsion speed, and the current load torque; and using the requested torque on the basis of the energy balance to control the torque generation of the engine.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: March 13, 2012
    Assignee: Magneti Marelli Powertrain S.p.A.
    Inventors: Savino Luigi Lupo, Gabriele Serra, Filippo Para
  • Patent number: 8042883
    Abstract: To provide a brake device for a motor vehicle that can suppress variation in braking force applied to a wheel regardless of variation in friction coefficient between a rotator and a braking means in a fluid pressure brake. A brake device for a motor vehicle is provided with a fluid pressure brake 2 (braking means) that applies brake force according to brake fluid pressure to a brake disk (rotator) 20 fixed to a driving wheel (wheel) 3, and has a first feedback mechanism (pressure-reducing means) 15-1 that applies reaction force inputted from the brake disk 20 to the fluid pressure brake 2 in brake operation in a reducing direction of the brake fluid pressure.
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: October 25, 2011
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Masaki Nakano
  • Patent number: 7938494
    Abstract: Improved anti-lock brake systems (ABS) employed on aircraft and land vehicles and methods of operating same employing a sliding mode observer (SMO) incorporated into an ABS algorithm requiring only measurement of wheel speed to regulate the application of braking torque are disclosed. Braking is optimized simply by maintaining an SMO estimate of differential wheel torque (road/tire torque minus applied brake torque) derived from wheel speed at an extremum via applying or releasing the brakes as the extremum is passed through.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: May 10, 2011
    Inventors: William B. Ribbens, Ronald J. Fredricks
  • Patent number: 7837279
    Abstract: The adaptive brake application and initial skid detection system allows rapid brake application and prevents deep initial skids. Brake torque is compared with a predetermined threshold brake torque. Wheel velocity error signals are also generated to indicated the difference between the wheel velocity and a reference velocity signal. A torque bias modulator integrator responsive to brake torque signals adjusts the wheel velocity error signals to provide an anti-skid control signal. The torque bias modulator integrator can also be initialized to the value of the measured brake torque when the wheel velocity error signals indicate the beginning of a skid. Brake torque difference signals are generated to indicate the difference between brake torque and a commanded brake torque, and an adjusted brake torque error signal is generated in response to the brake torque difference signals.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: November 23, 2010
    Assignee: Hydro-Aire, Inc.
    Inventors: Bijan Salamat, Robert D. Cook
  • Patent number: 7744167
    Abstract: The adaptive brake application and initial skid detection system allows rapid brake application and prevents deep initial skids. Brake pressure is compared with a predetermined threshold brake pressure. Wheel velocity error signals are also generated to indicated the difference between the wheel velocity and a reference velocity signal. A pressure bias modulator integrator responsive to brake pressure signals adjusts the wheel velocity error signals to provide an anti-skid control signal. The pressure bias modulator integrator can also be initialized to the value of the measured brake pressure when the wheel velocity error signals indicate the beginning of a skid. Brake pressure difference signals are generated to indicate the difference between brake pressure and a commanded brake pressure, and an adjusted brake pressure error signal is generated in response to the brake pressure difference signals.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: June 29, 2010
    Assignee: Hydro-Aire, Inc.
    Inventors: Bijan Salamat, Robert D. Cook
  • Patent number: 7739016
    Abstract: The state estimator provides parametric estimates for operating states not readily measurable with production powertrain and driveline hardware, such as real-time torque values of axles and dampers. This facilitates implementation of torque oscillation damping control schemes which use multivariable feedback. A control parameter is estimated for a powertrain system having multiple torque-generative devices operably connected to a transmission device having a torque output to a driveline. This includes establishing a plurality of equations operable to estimate the control parameter and other operating parameters based upon torque inputs. The operating parameters comprise operating speeds of the powertrain system and driveline. The operating parameters that comprise operating speeds of the powertrain system and driveline are determined. Coefficients of the plurality of equations are adjusted based upon the operating speeds of the powertrain system.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: June 15, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventor: Robert L. Morris
  • Patent number: 7695076
    Abstract: Based on whether a requisite braking torque is less than a drive torque of the driving wheel, braking force is generated for only driving wheels, or braking force is generated for driven wheels, in addition to that for the driving wheels. Thus, it is possible to maintain the creep speed to the target speed and achieve a suitable front and rear braking force distribution on downward slope roads where a gravity impellent is acting on the vehicle, as well as on flat roads and upward slope roads. The ability to achieve such a suitable front and rear braking force distribution ensures that the driven wheels will not easily lock up on a low ? road surface or the like.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: April 13, 2010
    Assignee: Advics Co., Ltd.
    Inventors: Yukio Mori, Koichi Kokubo
  • Publication number: 20100001578
    Abstract: A braking device for braking a moving mass includes a movably guided coupling member for pressing a brake lining against a braking surface, a brake cylinder, filled with a hydraulic liquid, a brake piston which is movable inside the brake cylinder and which is connected to the coupling member. At least one hydraulic line can be connected to the brake cylinder. The device ensures the moving masses to be reliably decelerated. For that purpose, a fluidic-mechanical safety brake device is used to connect the brake cylinder to the one or more hydraulic lines.
    Type: Application
    Filed: August 23, 2007
    Publication date: January 7, 2010
    Applicant: SIEMENS AKTIEGESELLSCHAFT
    Inventors: Matthias Liermann, Toni Schiffers, Christian Stammen
  • Patent number: 7575089
    Abstract: A front steering gear (18) is connected with steerable front wheels (12 and 14) of a vehicle (10). A rear steering gear (28) is connected with steerable rear wheels (30 and 32) of the vehicle (10). A torque sensor (40) connected with a steering wheel (16) provides an output to a controller (42). The controller (42) effects operation of the rear steering gear (28) in response to an output of the torque sensor (40) corresponding to manual application of at least a predetermined force to the steering wheel (16). Alternatively or in addition, the controller (42) may effect operation of a rear wheel brake (50 or 52) which is disposed on a radially inner side of a turn in response to the output from the torque sensor (40).
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: August 18, 2009
    Assignee: TRW Automotive U.S. LLC
    Inventor: Kenneth A. Sherwin
  • Patent number: 7500724
    Abstract: The adaptive brake application and initial skid detection system allows rapid brake application and prevents deep initial skids. Brake torque is compared with a predetermined threshold brake torque. Wheel velocity error signals are also generated to indicated the difference between the wheel velocity and a reference velocity signal. A torque bias modulator integrator responsive to brake torque signals adjusts the wheel velocity error signals to provide an anti-skid control signal. The torque bias modulator integrator can also be initialized to the value of the measured brake torque when the wheel velocity error signals indicate the beginning of a skid. Brake torque difference signals are generated to indicate the difference between brake torque and a commanded brake torque, and an adjusted brake torque error signal is generated in response to the brake torque difference signals.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: March 10, 2009
    Assignee: Hydro-Aire, Inc.
    Inventors: Bijan Salamat, Robert D. Cook
  • Patent number: 7499787
    Abstract: In one example, A method for controlling a powertrain of a vehicle with wheels, the vehicle having a pedal actuated by a driver, is described. The method may include generating powertrain torque transmitted to the wheels in a first relation to actuation of the pedal by the driver during a first condition where said transmitted torque causes said wheels to slip relative to a surface; overriding said driver actuated powertrain torque to control said slip; and during a second condition after said first condition where said vehicle is moving less than a threshold, generating powertrain torque transmitted to the wheels in a second relation to actuation of the pedal by the driver, where for a given pedal position, less powertrain torque is transmitted with said second relation compared to said first relation.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: March 3, 2009
    Assignee: Ford Global Technologies, LLC
    Inventors: Davor Hrovat, Michael Fodor, Mitch McConnell
  • Publication number: 20080238187
    Abstract: A hydraulic system is provided having a reservoir configured to hold a supply of fluid. The hydraulic system also has a variable displacement pump configured to supply charge fluid and pilot control fluid to the hydraulic system. In addition, the hydraulic system has a closed-loop portion configured to receive charge fluid from the variable displacement pump and drive a mechanism. The hydraulic system further has a pilot fluid supply portion configured to direct pilot control fluid from the variable displacement pump to closed-loop portion.
    Type: Application
    Filed: March 30, 2007
    Publication date: October 2, 2008
    Inventors: Stephen Carl Garnett, Michael Jon Grichnik, Randall Alan Harlow, David Jason McIntyre, Eric David Stemler, Timothy Lynn Hand, Adam Hendzel, Ryan Raymond Harken, Nathanael Garnet McRostie
  • Patent number: 7331427
    Abstract: A disc brake (10) is described, comprising a brake disc (12) and two brake shoes (20), which are pressable against both sides of the brake disc (12) and which in relation to a peripheral force (C?) generated upon application of the brake shoes (20) against the brake disc (12) are supported against a vehicle-fixed carrier (14). The disc brake (10) moreover comprises at least one device (34) for measuring and/or converting the peripheral force (C?), which device is disposed in a force transmission chain between the brake shoe (20) and the carrier (14). A force transmission member in the form of e.g. a swivel element (30) is disposed between the brake shoe (20) and the device (34) for measuring and/or converting the peripheral force (C?) and is movable under guidance parallel to the brake disc (12).
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: February 19, 2008
    Assignee: Lucas Automotive GmbH
    Inventor: Kurt Mohr
  • Patent number: 7308350
    Abstract: A control system for an automotive vehicle (10) and method for operating the same includes a controller (26) that is used to control the brake system in response to an adaptive brake gain coefficient. The adaptive brake gain coefficient may be used by a safety system so that a desired brake torque is applied to the wheel.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: December 11, 2007
    Assignee: Ford Global Technologies, LLC
    Inventors: Todd Brown, Chuck Bannon, Keith Mattson
  • Patent number: 7285927
    Abstract: A relay switch for selectively connecting a power supply line of an inverter to a ground line is inserted between the inverter and a power source, and a power consumption unit such as a resistor element is inserted between the relay switch and ground line.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: October 23, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Yuichi Kuramochi, Toshio Manaka
  • Publication number: 20070228815
    Abstract: A brake force detecting apparatus for detecting strain in a caliper bracket. The caliper bracket has two fixed portions fixed to a wheel support and a connecting portion for connecting the fixed portions. The connecting portion of the caliper bracket is formed with a recess at a position radially outside of a line connecting the fixed portions in the radial direction of a brake disc. A sensor plate is press-fitted in the recess of the connecting portion in engaged relationship with the connecting portion so as to undergo deformation generated in the connecting portion in its tensile direction. A strain gauge is attached to the sensor plate.
    Type: Application
    Filed: March 14, 2007
    Publication date: October 4, 2007
    Applicant: Honda Motor Co., Ltd.
    Inventors: Takehiro Horiuchi, Hiromi Inagaki, Takayuki Ohmori
  • Patent number: 7274985
    Abstract: A target vehicle speed is switched between a target slip vehicle speed and a target torque vehicle speed on the basis of a result of a determination regarding whether or not a vehicle is insufficiently accelerated. More specifically, if traction control is not performed, the target slip vehicle speed is set as the target vehicle speed. If it is determined that the vehicle is sufficiently accelerated during traction control, a value obtained by subtracting a maximum permissible value from a value set last time as the target vehicle speed is compared with the target slip vehicle speed, and the larger one of them is set as the target vehicle speed this time.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: September 25, 2007
    Assignee: Advics Co., Ltd.
    Inventors: Junya Nagaya, Toshihisa Kato, Yasuhito Ishida, Tatsuya Yano
  • Patent number: 7249807
    Abstract: A vehicle braking force control device for executing a follow-up (or servo) control of braking force for individual wheels is improved for canceling the difference of braking force between left and right wheels especially during transient condition of braking force variation due to the difference of input-output response characteristics in braking force generating apparatuses and components associated therewith in a braking system. In the inventive control device, a relation between actual values of braking force on left and right wheels, such as the difference between braking force or pressure values on the left and right wheels, is fed back to these braking force generating apparatuses through the modification of target barking force or pressure values. The modification amounts of the target values may be determined so as to keep appropriate braking force distribution among front and rear wheels.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: July 31, 2007
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hideki Sakai
  • Publication number: 20070170775
    Abstract: A brake control section can select an automatic mode in which a mechanical brake is automatically transitioned from a released state to a braking state in response to the running condition of a vehicle. A diagnostic section outputs a fail signal when an abnormal condition of the brake control section is detected. A power control section automatically stops a drive power source of the vehicle when the running condition of the vehicle satisfies a predetermined condition for determining a vehicle stop. When the automatic mode of the brake control section is released or when the diagnostic section outputs a fail signal of the brake control section, the power control section is inhibited to automatically stop the drive power source, so that an unintentional movement of the vehicle caused by an inclination of the road surface and the automatic stop of the drive power source can be prevented.
    Type: Application
    Filed: January 25, 2007
    Publication date: July 26, 2007
    Inventors: Yukiya Uchimura, Katsufumi Ichikawa, Tsuyoshi Nakano
  • Patent number: 7215090
    Abstract: A relay switch for selectively connecting a power supply line of an inverter to a ground line is inserted between the inverter and a power source, and a power consumption unit such as a resistor element is inserted between the relay switch and ground line.
    Type: Grant
    Filed: February 9, 2005
    Date of Patent: May 8, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Yuichi Kuramochi, Toshio Manaka
  • Patent number: 7104616
    Abstract: A brake gain based torque controller utilizes commanded torque, measured torque and measured pressure in order to provide brake control for a vehicle, such as an aircraft. According to one particular aspect of the invention, the brake gain-based torque controller is provided for controlling a braking operation of a wheel of a vehicle based on a computed brake gain calculated in real-time. Under normal breaking conditions, command torque is multiplied by the calculated computed brake gain to produce a pressure signal to control the pressure to be applied to the brake.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: September 12, 2006
    Assignee: Goodrich Corporation
    Inventor: Michael Lee Zierolf