And Traction Control Patents (Class 303/139)
  • Patent number: 10988128
    Abstract: In a hydraulic brake system, which includes: a hydraulic pump which is driven by an electric motor and has the purpose of generating a fluid volume flow for the hydraulic brake system; and a solenoid valve for controlling the fluid volume flow from the hydraulic pump to a wheel brake, a method includes actuating the solenoid valve in such a way that by this means a fluid pulsation at the wheel brake is counteracted. Furthermore, the method may be implemented in a corresponding device.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: April 27, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Christoph Emde, Heiko Druckenmueller, Holger Kurz, Patrick Schellnegger, Yakup Navruz, Andreas Schmidtlein
  • Patent number: 10948064
    Abstract: A method for controlling a differential braking arrangement of a vehicle, said vehicle comprising at least one auxiliary braking arrangement and at least one differential braking arrangement, said auxiliary braking arrangement and said differential braking arrangement being connected to a pair of propelled wheels of said vehicle, wherein the differential braking arrangement is arranged to control a relative rotational speed between the pair of propelled wheels, wherein the method comprises the steps of receiving a signal indicative of a downhill slope for a road ahead of said vehicle; determining an inclination of said downhill slope; determining a braking power needed for the at least one auxiliary braking arrangement for preventing the vehicle speed of the vehicle from exceeding a predetermined speed limit when driving at the downhill slope; and engaging the at least one differential braking arrangement for reducing the relative rotational speed between the propelled wheels if the determined braking power o
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: March 16, 2021
    Assignee: VOLVO TRUCK CORPORATION
    Inventors: Niklas Öberg, Anders Eriksson
  • Patent number: 10940862
    Abstract: A method of substantially preventing road speed excursions while traversing a road grade event includes receiving, by a controller, vehicle operations data regarding operation of a vehicle and road grade data regarding an upcoming road grade of a path ahead of the vehicle. The method additionally includes determining, by the controller, an amount of braking power that substantially prevents the vehicle from exceeding a speed threshold regarding operation of the vehicle based on the road grade and vehicle operations data, and determining an amount of engine braking power based on a current transmission setting. The method further includes controlling, by the controller, a transmission setting in response to a determination that the amount of engine braking power is less than the amount of braking power.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: March 9, 2021
    Assignee: Cummins Inc.
    Inventors: Daniel Reed Dempsey, Joseph R. Dynes, Nathanael G. Long
  • Patent number: 10933849
    Abstract: An antiskid controller for controlling braking operation of a wheel of a vehicle based on an output signal provided by a wheel speed sensor coupled to the wheel may comprise a delay toggle, a switch logic for switching between an initial rate and a running rate, and a linear control used for calculating an antiskid correction signal, wherein the linear control receives one of the initial rate and the running rate, depending on a state of the switch logic. The linear control receives the initial rate upon initialization of the antiskid controller. The linear control receives the running rate after a predetermined duration or after the linear control has converged on a desired solution.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: March 2, 2021
    Assignee: Goodrich Corporation
    Inventors: Tyler Arsenault, Naison E Mastrocola
  • Patent number: 10864909
    Abstract: A vehicle control method of performing automatic braking for automatically braking a vehicle or alarm output, depending on a possibility of a collision between the vehicle and an obstacle, includes: cancelling the automatic braking or the alarm output, when an accelerator operation amount is equal to or larger than a predetermined threshold value, during the automatic braking or the alarm output, and cancelling the automatic braking or the alarm output, when a given cancellation condition is satisfied under a situation where the accelerator operation amount of the vehicle is smaller than the predetermined threshold value, during the automatic braking or the alarm output.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: December 15, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoki Taki, Masaaki Uechi, Yoji Mizoguchi, Hiroshi Harada, Kumiko Kondo
  • Patent number: 10843688
    Abstract: A vehicle control method of performing automatic braking for automatically braking a vehicle or alarm output, depending on a possibility of a collision between the vehicle and an obstacle, includes: cancelling the automatic braking or the alarm output, when an accelerator operation amount is equal to or larger than a predetermined threshold value, during the automatic braking or the alarm output, and cancelling the automatic braking or the alarm output, when a given cancellation condition is satisfied under a situation where the accelerator operation amount of the vehicle is smaller than the predetermined threshold value, during the automatic braking or the alarm output.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: November 24, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoki Taki, Masaaki Uechi, Yoji Mizoguchi, Hiroshi Harada, Kumiko Kondo
  • Patent number: 10717433
    Abstract: A method for assisted parking of a vehicle performed by a parking control device. The method includes: determining a current position of a vehicle based on at least one of GPS information or environment information of the vehicle; generating traveling map information during manual driving of the vehicle, the traveling map information including a traveling path of the vehicle from the current position of the vehicle, based on at least one user input received through a vehicle manipulation device and at least one sensor value acquired through at least one sensor; and transmitting, based on receiving a rollback request signal, a rollback control signal that causes the vehicle to autonomously drive in a reverse direction along at least part of the traveling path from a rollback starting position of the vehicle.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: July 21, 2020
    Assignee: LG Electronics Inc.
    Inventors: Soonhong Jung, Moonjung Kim, Aram Kim, Hyongguk Kim, Hyeongjin Im
  • Patent number: 10493990
    Abstract: A system for performing ride control blending in an electric vehicle may include a control distribution module, a torque control module, and a vertical force control module. The control distribution module may calculate a torque control demand and a vertical force control demand associated with a wheel of the vehicle based on a generalized vertical force, a pitch moment, and a roll moment associated with a body of the vehicle. The torque control module may adjust torque applied by an electric motor to the wheel based on the torque control demand. The vertical force control module may adjust vertical force applied by a suspension actuator to the wheel based on the vertical force control demand.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: December 3, 2019
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: Miguel Dhaens, Dzmitry Savitski, Valentin Ivanov, Klaus Augsburg
  • Patent number: 10321622
    Abstract: An agricultural working machine has a first axle and a second axle, multiple ground-engaging means disposed at the first and second axles that are at least partially drivable by a drive engine or are steerable using steering-knuckle steering, a steering-angle sensor disposed at a steerable ground-engaging means for detecting a set steering angle (?th) and a steering brake for the selective braking of one or more drivable, ground-engaging means for steering support. A control unit controls and regulates the at least one steering brake based on a steering angle (?th, ?tat) or a slip angle (?) of at least one of the steerable ground-engaging means.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: June 18, 2019
    Assignee: CLAAS Industrietechnik GmbH
    Inventors: Philipp Muemken, Helmut Claas, Robert Obermeier-Hartmann, Hendrik Schulze Zumkley, Thomas Schulte, Carolin Hammacher
  • Patent number: 10266159
    Abstract: The present invention relates to a vehicle braking arrangement for a vehicle with wheels contacting the ground during normal running. The vehicle braking arrangement includes an emergency brake control unit, a first emergency braking system including non-reversible braking means arranged to operate independently of the vehicle wheels, at least one acceleration detector, and a wheel brake anti-locking system. The emergency brake control unit is arranged to input acceleration data (a) when the wheel brake anti-locking system is active, and to calculate the coefficient of friction (?) between the wheels and the ground. The emergency brake control unit is arranged to determine if the first emergency braking system should be activated in dependence of a first plurality of parameters, where one of these parameters is the coefficient of friction (?).
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: April 23, 2019
    Assignee: VEONEER SWEDEN AB
    Inventors: Ulrich Sander, Christian Svenson
  • Patent number: 10099688
    Abstract: A vehicle control method of performing automatic braking for automatically braking a vehicle or alarm output, depending on a possibility of a collision between the vehicle and an obstacle, includes: cancelling the automatic braking or the alarm output, when an accelerator operation amount is equal to or larger than a predetermined threshold value, during the automatic braking or the alarm output, and cancelling the automatic braking or the alarm output, when a given cancellation condition is satisfied under a situation where the accelerator operation amount of the vehicle is smaller than the predetermined threshold value, during the automatic braking or the alarm output.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: October 16, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoki Taki, Masaaki Uechi, Yoji Mizoguchi, Hiroshi Harada, Kumiko Kondo
  • Patent number: 10029664
    Abstract: A control system for a vehicle includes an electric drive system associated with a first set of wheels (e.g., rear wheels) of a vehicle and a drive system control unit configured to control the electric drive system to selectively provide electric motive power to the first set of wheels to propel the vehicle and electric retarding to slow the vehicle. The system further includes a friction brake system having a first friction brake unit associated with the first set of wheels and a second friction brake unit associated with a second set of wheels (e.g., front wheels) of the vehicle. The drive system control unit is further configured, in at least one mode of operation, to independently control the first and second friction brake units to concurrently apply different levels of friction braking to the first and second sets of wheels, to reduce wear unevenness.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: July 24, 2018
    Assignee: General Electric Company
    Inventors: Jeffrey Wolff, Henry Young, Timothy Brown, Carlos Vallejo, Sean Cillessen, Kenneth Nedley, Larry Bench
  • Patent number: 9789875
    Abstract: A brake/drive force controlling apparatus for a vehicle includes an engine for applying drive forces to driving wheels of the vehicles, a control diff for distributing the drive forces to the left and right driving wheels independently, and an electronic control system brake device for applying brake forces to the left and right driving wheels independently. An ECU is configured so as to be able to control the engine, the control diff, and the electronic control system brake device according to an operating state of the vehicle. When the electronic control system brake device is operated, this ECU stops the operation of the control diff, thereby avoiding a sudden input of load on the drive force distribution mechanism, regardless of the running state of the vehicle. This makes the apparatus simpler and more lightweight.
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: October 17, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoji Mizoguchi, Koji Taguchi, Hirokazu Kato
  • Patent number: 9605740
    Abstract: A method for controlling a locking differential of a motor vehicle includes locking the differential, if vehicle speed is less than a reference speed, and a wheel speed differential due to wheel slip is greater than a reference speed; and unlocking the differential and preventing its engagement, if vehicle speed is greater than the reference speed, and said wheel speed differential is less than a reference speed.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: March 28, 2017
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Jacob M. Povirk, Brian J. Andonian, Joseph J. Torres, Kenneth G. Walega
  • Patent number: 9150203
    Abstract: A vehicle braking control device includes a braking force simultaneous control mode executing unit capable of executing a braking force simultaneous control mode for simultaneously controlling right/left wheels cylinders by a brake hydraulic pressure circuit according to slip ratios of right/left wheels, a braking force independent control mode executing unit capable of executing a braking force independent control mode for independently controlling the right/left wheels cylinders, and a switching controller capable of switching the braking force simultaneous control mode and the braking force independent control mode, wherein the switching controller switches to the braking force independent control mode at the time a slip ratio difference of the right/left rear wheels becomes equal to or less than a preset and predetermined value during switching from the braking force simultaneous control mode to the braking force independent control mode.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: October 6, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yoshinori Watanabe
  • Patent number: 8924120
    Abstract: A regenerative brake control system for a vehicle includes a vehicle controller, a driveline torque distribution device interfacing with the vehicle controller, an electric machine interfacing with the driveline torque distribution device, a plurality of wheels coupled to the electric machine and at least one traction condition input indicating traction of the plurality of wheels provided to the vehicle controller. The vehicle controller engages the driveline torque distribution device and the electric machine apportions regenerative brake torque to the wheels in proportion to the traction of the wheels. A regenerative brake control method for a vehicle is also disclosed.
    Type: Grant
    Filed: June 6, 2009
    Date of Patent: December 30, 2014
    Assignee: Ford Global Technologies, LLC
    Inventor: William Paul Perkins
  • Patent number: 8909386
    Abstract: In a vehicle control system, an index used to set a running characteristic of a vehicle is obtained based on a running condition of the vehicle. A change of the index that makes behavior of the vehicle crisper is more likely to occur than a change of the index that makes the behavior of the vehicle milder. When it is determined that the vehicle is in a turning condition, the change of the index or a change of the miming characteristic based on the index is less likely to occur than when it is determined that the vehicle is not in the turning condition.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: December 9, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Keisuke Takeuchi, Toshio Tanahashi, Hiroyuki Hanamura, Shin Noumura, Ken Koibuchi, Kaiji Itabashi, Yoji Takanami, Norimi Asahara
  • Patent number: 8788144
    Abstract: A method for adjusting braking in a vehicle having wheels and a regenerative braking system is provided. The method comprises the steps of providing regenerative braking torque for the vehicle via the regenerative braking system at a first level if a wheel slip of the vehicle is not present, and providing regenerative braking torque for the vehicle via the regenerative braking system at one of a plurality of modulated levels if the wheel slip is present. Each of the plurality of modulated levels is dependent on a magnitude, a location, or both, of the wheel slip. Each of the modulated levels is less than the first level.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: July 22, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Eric E. Krueger, Kevin S. Kidston, Eric J. Holdorf, Mahir Hodzic
  • Patent number: 8781701
    Abstract: In a vehicular brake-by-wire braking system, during a four wheel simultaneous control mode when regeneration cooperative braking is implemented, a pair of electromagnetic isolation control valves and one of normally closed electromagnetic pressure relief valves corresponding to regeneration side left and right wheel brakes and normally closed electromagnetic pressure relief valves corresponding to non-regeneration side left and right wheel brakes are caused to operate to open and close, while the other of the normally closed electromagnetic pressure relief valves corresponding to the regeneration side left and right wheel brakes and the normally closed electromagnetic pressure relief valves corresponding to the non-regeneration side left and right wheel brakes are put in de-energized states in which the valves concerned are kept closed, and all normally open electromagnetic pressure supply valves are put in de-energized states in which the valves concerned are kept opened.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: July 15, 2014
    Assignees: Honda Motor Co., Ltd., Nissin Kogyo Co., Ltd.
    Inventors: Yasushi Aoki, Jiro Suzuki, Kouji Sakai
  • Patent number: 8727453
    Abstract: A hydraulic pressure control apparatus has an electromagnetic valve having a valve body forced to one side by an elastic member and a coil driving the valve body to the other side; a hydraulic pressure control section for calculating a command current value to drive the electromagnetic valve and controlling a hydraulic pressure in a hydraulic circuit by opening/closing the electromagnetic valve; a current detection section detecting a value of the current passing through the coil; and a command current value correction section. The command current value correction section detects a change of an inductance of the coil when the valve body moves from the one side to the other side or from the other side to the one side through the current detection section, and corrects the command current value using the detected inductance change.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: May 20, 2014
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Norihiro Saita, Taichi Shibata, Masamichi Imamura, Shinichiro Nishida, Satoshi Doi, Tadaharu Yokota
  • Patent number: 8706376
    Abstract: To provide an ABS control system and software with an automatic parameter calibration function. An ABS control system according to the present invention includes an electronic control unit (ECU), a wheel speed sensor, and a brake pressure sensor. The wheel speed sensor and the brake pressure sensor measure wheel speed and brake pressure during ABS braking, and the ABS control system automatically calibrates an internal parameter used in ABS control in response to the wheel speed and brake pressure measurement results.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: April 22, 2014
    Assignee: Bosch Corporation
    Inventors: Shunsaku Ono, Shuichi Miyagawa
  • Patent number: 8706378
    Abstract: The vehicle described herein employs a mu logic module. The mu logic module monitors vehicle operating conditions, and based on those operating conditions determines a road surface mu in response to a wheel slip event. The road surface mu is then used to determine a drive force to minimize or control the wheel slip event. The mu logic module continually monitors and adjusts the drive force provided to at least one of the wheels to maximize the applied drive force, while stabilizing and controlling wheel slip events to ensure safe operation of a vehicle.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: April 22, 2014
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventor: Jordan Choby
  • Patent number: 8589045
    Abstract: A system for determining a safe maximum speed of an vehicle has a processor and a global positioning system receiver in communication with the processor. The processor is configured to determine a grade and distance to an end of an upcoming or a current road segment the vehicle is traveling on based on the global positioning system information received from the global positioning system receiver. The processor is further configured to determine the safe maximum speed of the vehicle based on the distance to the end and pitch of the grade of the upcoming or current road segment the vehicle is traveling on and the braking efficiency of the vehicle.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: November 19, 2013
    Assignee: Continental Automotive Systems, Inc
    Inventors: Shafer Seymour, David Pivonka
  • Publication number: 20130257142
    Abstract: Disclosed are electronic control brake systems for vehicles which suppress residual frictional force generated due to contact between pads and a disc.
    Type: Application
    Filed: March 8, 2013
    Publication date: October 3, 2013
    Inventors: Hee Jun Kim, I Jin Yang
  • Patent number: 8527125
    Abstract: A traction control system for a machine having an electric drive configuration is disclosed. The traction control system includes an electric motor associated with at least one wheel and adapted to provide braking torque to the wheel. The control system further includes a controller configured to determine a rotational speed of the at least one wheel, compare the rotational speed to an allowable slide threshold, and adjust the braking torque to the at least one wheel during retarding if the speed is less than the allowable slide threshold.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: September 3, 2013
    Assignee: Caterpillar Inc.
    Inventors: William J. Tate, Alexander C. Crosman
  • Patent number: 8511758
    Abstract: In a brake system, when setting a control origin position for a resolver for detecting a moved position of a booster piston, communication between a master cylinder and wheel cylinders is interrupted by cut valves. Thereafter, the booster piston is moved forward by an electric actuator in a direction in which a hydraulic pressure is generated so that a position detected by the resolver upon detection of generation of the hydraulic pressure by a hydraulic pressure sensor (position at a time of generation of hydraulic pressure) is obtained. A position obtained by moving backward the position at the time of generation of hydraulic pressure by a predetermined amount is set as the control origin position.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: August 20, 2013
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Kazumoto Sano, Masaru Sakuma
  • Patent number: 8504254
    Abstract: An object of the invention is to provide a traction control apparatus capable of suitably controlling an error, if it occurs, between an estimation of a vehicle speed and an actual vehicle speed. A traction control apparatus according to the invention includes a vehicle speed estimator and a driving-force controller. The traction control apparatus includes a vehicle state determiner that determines whether the vehicle speed of the construction vehicle estimated by the vehicle speed estimator and the driving-force control by the driving-force controller are balanced, and a driving-force control changer that changes a driving-force control by the driving-force controller when the vehicle state determiner determines the vehicle speed and the driving-force control to be unbalanced.
    Type: Grant
    Filed: December 25, 2009
    Date of Patent: August 6, 2013
    Assignee: Komatsu Ltd.
    Inventors: Koji Uematsu, Kazuhiro Hatake
  • 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: 8412435
    Abstract: A system, method and computer program product is provided for detecting if a vehicle has spun. A normal force and a lateral force of each of a front and rear axle of a vehicle is estimated. A coefficient of friction representative of a surface is estimated. Lateral momenta of the front and rear axles based on the coefficient of friction and the normal and lateral forces is calculated. Whether a surplus momentum is present, is determined. If the surplus momentum is present, a yaw rate of the vehicle is integrated respect to time to obtain a vehicle rotation estimation.
    Type: Grant
    Filed: October 8, 2007
    Date of Patent: April 2, 2013
    Assignee: GM Global Technology Operations, LLC
    Inventor: Daniel S. Maitlen
  • Patent number: 8398180
    Abstract: A method of braking a vehicle which includes ground engaging wheels, and a braking system with ABS capability and including an operator actuated brake control, the ABS becoming operative in response to the operator actuating the brake control, and upon the braking system sensing the slippage or impending slippage of at least one of the ground wheels relative to the ground, to vary the braking force applied to the at least one of the wheels between, in alternative periods, an applied state in which the braking force is applied, and a released state in which the braking force is released, and characterised in that the method includes applying torque to assist acceleration of the wheel at least during periods in which the braking force is released by the ABS.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: March 19, 2013
    Assignee: JCB Landpower Limited
    Inventors: Gregory Peter Fitton, Andrew Robert Williams
  • Publication number: 20130026818
    Abstract: An electronic control device for a pressure controller, by way of which solenoid valves for pressure control are actuated with current via an actuating electronic system, and having a pump assembly is actuated as a function of a pressure request, which generates a volumetric flow with a periodically fluctuating amplitude. The wheel brake circuit isolating valve, during an active pressure build-up, discharging part of the delivery volume into a reservoir volume, at least in the case of a control operation which performs an intervention for driving stability which is not critical to safety, if the pressure which is built up by the assembly is higher than the pressure which is to be set, the electric coil current for the actuation of the isolating valve is modulated and the periodic actuation being interrupted at least when the control device has to carry out an intervention for driving stability which is critical to safety.
    Type: Application
    Filed: January 28, 2010
    Publication date: January 31, 2013
    Applicant: CONTINENTAL TEVES AG & CO. OAG
    Inventors: Robert Schmidt, Joachim Bohn, Michael Hitzel
  • Patent number: 8326505
    Abstract: A control system for an electromechanical-braking system provided with actuator elements configured to actuate braking elements for exerting a braking action has a control stage for controlling the braking action on the basis of a braking reference signal. The control stage comprises a model-based predictive control block, in particular of a generalized predictive self-adaptive control type, operating on the basis of a control quantity representing the braking action. The control system further has: a model-identification stage, which determines parameters identifying a transfer function of the electromechanical-braking system; and a regulation stage, which determines an optimal value of endogenous parameters of the control system on the basis of the value of the identifying parameters.
    Type: Grant
    Filed: October 15, 2007
    Date of Patent: December 4, 2012
    Assignee: STMicroelectronics S.r.l.
    Inventors: Nicola Cesario, Ferdinando Taglialatela Scafati, Olga Scognamiglio
  • Patent number: 8326504
    Abstract: A trailer sway intervention system. The trailer sway intervention system includes a trailer having a plurality of wheels, each wheel having a brake, and a vehicle towing the trailer. The vehicle includes a plurality of sensors configured to sense operating characteristics of the vehicle, and a controller. The controller receives the sensed operating characteristics from the sensors, determines an error based on a difference between an expected yaw rate and a sensed yaw rate, asymmetrically applies braking forces to one or more trailer wheels based on the difference, and symmetrically applies braking forces to the trailer wheels when the absolute value of the difference between the expected yaw rate and the sensed yaw rate is declining.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: December 4, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Hsien-cheng Wu, Jin-jae Chen, Nathan Drummond
  • Patent number: 8311693
    Abstract: Systems and methods for stabilizing a hybrid electric vehicle (“HEV”) towing a trailer. One system includes a regenerative braking system, a non-regenerative braking system, and a stabilization system. The stabilization system determines a direction of rotation and a speed of the HEV and compares the HEV's speed to a predetermined low speed threshold value and a predetermined high speed threshold value. The stabilization system instructs the regenerative braking system to brake at least one wheel when the speed is less than or equal to the predetermined low speed threshold value and instructs the regenerative braking system to brake at least one wheel opposite the direction of rotation and at least one of the regenerative braking system and the non-regenerative braking system to provide an extra stabilizing braking torque to at least one wheel opposite the direction of rotation when the speed is greater than the predetermined high speed threshold value.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: November 13, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Hsien-Cheng (Kevin) Wu, Bo Xu
  • Patent number: 8251461
    Abstract: To improve brake force in front and rear combined brake control, a brake control device includes a front wheel brake caliper having at least two front wheel cylinders, and a rear wheel brake caliper having a rear wheel cylinder. A front wheel brake conduit is disposed between a front wheel master cylinder and one of the front wheel cylinders, and a rear wheel brake conduit is disposed between a rear wheel master cylinder and the rear wheel cylinder. A pressure amplification conduit branches from a first position in the rear wheel brake conduit and merges with the rear wheel brake conduit at a second position downstream of the first position. A combined brake conduit branches from a third position in the rear wheel brake conduit positioned downstream of the first position and is coupled to the other of the front wheel cylinders. A first switch control valve is disposed between the first position and the third position in the rear wheel brake conduit.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: August 28, 2012
    Assignee: Bosch Corporation
    Inventors: Hiroaki Atsushi, Tohru Masuno
  • Patent number: 8219308
    Abstract: An engine-propelled monowheel vehicle comprises two wheels, close together, that circumscribe the remainder of the vehicle. When the vehicle is moving forward, the closely spaced wheels act as a single wheel, and the vehicle turns by leaning the wheels. A single propulsion system provides a drive torque that is shared by the two wheels. A separate steering torque, provided by a steering motor, is added to one wheel while being subtracted from the other wheel, enabling the wheels to rotate in opposite directions for turning the vehicle at zero forward velocity. The vehicle employs attitude sensors, for sensing roll, pitch, and yaw, and an automatic balancing system. A flywheel in the vehicle spins at a high rate around a spin axis, wherein the spin axis is rotatable with respect to the vehicle's frame. The axis angle and flywheel spin speed are continually adjustable to generate torques for automatic balancing.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: July 10, 2012
    Inventor: Karl F. Leeser
  • Patent number: 8191975
    Abstract: A method and system for assessing and preventing overturn of a vehicle, the method and system being particularly suitable for use with commercial vehicles with brake systems typically used in North America, wherein a vehicle equipped with single brake pressure modulator is controlled to increase or decrease brake pressure, depending on braking state, to test vehicle wheel speed by response. If the vehicle wheel speed response indicates the inside wheels of the vehicle are off the ground or only lightly loaded, it may be assumed that the vehicle is approaching overturning. A braking intervention may be then executed by the single brake pressure modulator to prevent the incipient overturn event.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: June 5, 2012
    Assignee: Bendix Commercial Vehicle Systems LLC
    Inventor: William P. Amato
  • Patent number: 8186769
    Abstract: To enable, with respect to a vehicle whose vehicle body is easily lifted to a relatively large extent even in a relatively early stage when rear wheel lifting is detected, more rapid and reliable securement of the safety of the vehicle body with respect to that rear wheel lifting. When lifting of a rear wheel is detected, in contrast to what has conventionally been the case, pressure reduction of brake pressure of a front wheel is immediately started (S100, S102) regardless of whether or not there is occurrence of skidding of the front wheel, a stepwise reduction of brake pressure is performed while lifting of the rear wheel is being detected, and when the integrated amount of that amount of pressure reduction reaches a predetermined value, pressure reduction is ended even in a state where rear wheel lifting is being detected.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: May 29, 2012
    Assignees: Bosch Corporationm, Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Takahiro Ogawa, Helge Westerfeld, Markus Hamm
  • Patent number: 8046146
    Abstract: A method is provided for adaptively determining an anti-lock braking strategy that includes monitoring a distance differential of at least one target in proximity to a driven vehicle. An anti-lock braking strategy is determined as a function of the distance differential. The anti-locking braking strategy is applied as a function of the distance differential.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: October 25, 2011
    Assignee: Kelsey-Hayes Company
    Inventors: Douglas Charles Osborn, James Andrew Techentin, Jong Wook Lee
  • Patent number: 8024091
    Abstract: An FB distribution rule 20 determines an actual vehicle actuator operation control input and a vehicle model operation control input such that a difference between a reference state amount determined by a vehicle model 16 and an actual state amount of an actual vehicle 1 (a state amount error) approximates to zero, and the control inputs are used to operate an actuator device 3 of the actual vehicle 1 and the vehicle model 16. In the FB distribution law 20, when an actual vehicle feedback required amount based on the state amount error exists in a dead zone, then an actual vehicle actuator operation control input is determined by using the required amount as a predetermined value. A vehicle model manipulated variable control input is determined such that a state amount error is brought close to zero, independently of whether an actual vehicle feedback required amount exists in a dead zone.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: September 20, 2011
    Assignee: Honda Motor Co., Ltd.
    Inventors: Toru Takenaka, Takayuki Toyoshima, Hiroyuki Urabe, Hiroshi Kono
  • Publication number: 20110193407
    Abstract: An improved braking system and brake control method for a vehicle, in particular a truck, utilizes at least one pressure line for carrying a medium from at least one pressurized medium source to a brake device, and a brake pedal for receiving brake commands from a vehicle driver and for operating a brake line, which can be connected to the brake device. A pilot control valve with accompanying measuring capability quantitatively determines the brake pressure demanded by the vehicle driver.
    Type: Application
    Filed: February 8, 2010
    Publication date: August 11, 2011
    Inventors: Dirk Wohltmann, Thomas Wolf, Thomas Lenz
  • Patent number: 7937194
    Abstract: A method of reducing wheel slip and wheel locking in an electric traction vehicle includes receiving in a first controller a first signal value representative of a first amount of torque to be applied to at least one wheel of the electric traction vehicle by a motor coupled to the wheel and to the first controller, and a second signal value representative of a reference speed of the electric traction vehicle. The first and second signal values are generated by a second controller in communication with the first controller. The method also includes receiving in the first controller a third signal value representative of a speed of the at least one wheel, determining in the first controller a torque output signal using the first, second, and third signal values; and transmitting the torque output signal from the first controller to the motor.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: May 3, 2011
    Assignee: Oshkosh Corporation
    Inventors: Nader Nasr, Peter Werner
  • Patent number: 7914085
    Abstract: In brake control system and method for an automotive vehicle, a vehicle body deceleration increment correction quantity is set to zero during a start of braking, the vehicle body deceleration increment correction quantity is set to be gradually larger along with at least one of a decrease in the traveling velocity of the vehicle and an increase in a braking passage time in a first region in which a traveling velocity of the vehicle is equal to or higher than a first predetermined traveling velocity, and the vehicle body deceleration increment correction quantity is set to a substantially constant value in a second region in which the traveling velocity of the vehicle is lower than the first predetermined traveling velocity.
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: March 29, 2011
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Hiroshi Tsunehara
  • Publication number: 20100289326
    Abstract: The motor of an anti-lock braking system comprises a stator having six stator poles and a rotor with a rotor core having nine teeth. The rotor is rotatably mounted to the stator with the rotor core confronting the stator poles. Rotor windings are wound about the teeth and electrically connect to a commutator fixed to a rotor shaft. A bearing is fixed onto one end of the rotor shaft. Pump pistons radially attach to the bearing. The mechanical centreline of the bearing is offset from the rotational axis of the rotor shaft so that the pistons are driven by the bearing when the rotor turns. The windings comprise a plurality of concentrated coils so that the coils do not overlap with each other. The axial length of the motor is thus reduced.
    Type: Application
    Filed: May 12, 2010
    Publication date: November 18, 2010
    Inventors: Rui Feng Qin, Ting Tuan Xu, Fei Liu
  • Patent number: 7774103
    Abstract: A system for estimating vehicle side-slip in the linear vehicle operating region that includes updating front and rear cornering stiffness signals. The system includes a first state observer processor that employs a bicycle model with state feedback for generating yaw acceleration and lateral acceleration signals. The system further includes a subtractor that receives the yaw acceleration and lateral acceleration signals and measured yaw rate and lateral acceleration signals, and generates yaw acceleration and lateral acceleration error signals. A parameter estimation processor calculates an updated front cornering stiffness and rear cornering stiffness signals. The updated front and rear cornering stiffness signals are sent back to the first state observer processor, and are used by second state observer processor for generating the estimated vehicle side-slip.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: August 10, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Weiwen Deng, Haicen Zhang
  • Patent number: 7769519
    Abstract: A motion control device for a vehicle is configured so that a hydraulic unit mounting therein a pump for generating a controlled hydraulic pressure applied to respective wheel cylinders of the vehicle is integrated with a control unit provided with a yaw rate sensor for detecting a yaw rate of the vehicle and capable of controlling the hydraulic unit. The pump is composed of a pump drive section, drivingly rotated by a motor, and pumping sections which perform a pump function with the rotation of the pump drive section. The yaw rate sensor, the motor and the pump are arranged to satisfy a positional relation that the extending direction of a detection axis of the yaw rate sensor does not coincide with both of the extending directions of a rotational axis of the motor and a rotational axis of the pump drive section.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: August 3, 2010
    Assignee: Advics Co., Ltd.
    Inventors: Masahiko Kamiya, Tadayoshi Usami
  • Patent number: 7734404
    Abstract: A deceleration control apparatus for a vehicle including a controller that performs deceleration control based on a first target deceleration set based on a distance to a starting point of an upcoming curve, when the deceleration control for the curve is started at a position distant from the starting point of the curve; and that performs the deceleration control based on a second target deceleration set based on a lateral acceleration that is estimated to be detected when the vehicle passes the starting point of the curve, when the deceleration control for the curve is started at a position close to the starting point of the curve. With this apparatus, it is possible to perform the deceleration control that provides drive assist according to the intention of the driver and that enhances driving convenience for the driver.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: June 8, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kazuyuki Shiiba, Kunihiro Iwatsuki, Yukihiro Ikeda, Masayoshi Hoshino, Akira Matsui
  • Patent number: 7731304
    Abstract: The invention relates to an electronically regulatable vehicle brake system with traction control, in which a master cylinder is connected indirectly via a hydraulic unit to at least one wheel brake. The hydraulic unit has electromagnet valves and an externally triggerable pressure generator, for modulating the wheel brake pressure, optionally independently of the driver. For preventing wheel slip, the pressure generator is connected by its intake side to an intake conduit, among other things, that is controllable by an intake valve. To enhance the dynamics and improve the regulatability of a vehicle brake system, a self-aspirating pressure fluid storage unit is connected to the intake conduit and makes an aspiration volume available to the pressure generator.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: June 8, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Bernd Groll, Guenther Schnalzger
  • Patent number: 7706945
    Abstract: A vehicle lateral control system that integrates both vehicle dynamics and kinematics control. The system includes a driver interpreter that provides desired vehicle dynamics and predicted vehicle path based on driver input. Error signals between the desired vehicle dynamics and measured vehicle dynamics, and between the predicted vehicle path and the measured vehicle target path are sent to dynamics and kinematics control processors for generating a separate dynamics and kinematics command signals, respectively, to minimize the errors. The command signals are integrated by a control integration processor to combine the commands to optimize the performance of stabilizing the vehicle and tracking the path. The integrated command signal can be used to control one or more of front wheel assist steering, rear-wheel assist steering or differential braking.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: April 27, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Weiwen Deng, Yong H. Lee
  • Patent number: 7698034
    Abstract: An integrated vehicle control system includes a first control system having a maximum authority to selectively operate a first vehicle sub-system and a second control system to selectively operate a second vehicle sub-system. A controller is adapted to monitor a first parameter associated with the first vehicle sub-system and a second parameter associated with the second vehicle sub-system. The controller is operable to control the first and second parameters by selectively invoking operation of the second control system when the first control system exceeds the maximum authority and the second parameter exceeds an upper threshold.
    Type: Grant
    Filed: January 6, 2004
    Date of Patent: April 13, 2010
    Inventor: Youssef A Ghoneim