Antiskid, Antilock, Or Brake Slip Control Patents (Class 701/71)
  • Patent number: 11565670
    Abstract: An electric braking system (1) for braking an aircraft, the system comprising: a brake (3) comprising an electromechanical actuator (5) designed so that when it applies a force to the friction members (4) that is less than or equal to a first maximum threshold, no degradation of the actuator occurs, and when it applies a force to the friction members (4) that is greater than the first maximum threshold, degradation is likely to occur; control means (7) configurable to occupy a first mode in which the controlled braking force cannot exceed the first maximum threshold, and to occupy a second mode in which the controlled braking force can reach the second maximum threshold; and configuration means (10) arranged to configure the control means (7) to occupy the second mode when in a situation preceding a potential interruption of takeoff (RTO) of the aircraft, and otherwise to occupy the first mode.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: January 31, 2023
    Assignee: SAFRAN LANDING SYSTEMS
    Inventors: Nathanaël Richard, Romain Presle
  • Patent number: 11505167
    Abstract: Brake control systems are disclosed herein. A brake control system comprises a first set of analog-to-digital converters in electrical communication with a first set of brake input mechanism sensors and a second set of analog-to-digital converters in electrical communication with a second set of brake input mechanism sensors. The first and second sets of analog-to-digital converters comprise one or more of different hardware and different software for differentially manipulating sensor outputs received from the brake input mechanism sensors.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: November 22, 2022
    Assignee: The Boeing Company
    Inventors: David T. Yamamoto, Steven Elliot Smith, Nima Forghani, Bruce Van Deventer
  • Patent number: 11505176
    Abstract: Systems and methods are provided herein for operating a vehicle in a vehicle yaw mode. In response to initiating vehicle yaw mode, the system engages an open-loop mode, that provides open-loop forward torque to the outer wheels of the vehicle and open-loop backward torque to the inner wheels of the vehicle until a sufficient number of wheels are slipping. In response to determining that a sufficient number of wheels are slipping, engaging a closed-loop mode. While operating in the closed-loop mode, one or both of the wheel rotation and vehicle yaw rate are monitored to adjust the torques provided to the wheels of the vehicle to control the vehicle yaw rate.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: November 22, 2022
    Assignee: RIVIAN IP HOLDINGS, LLC
    Inventors: Mason Verbridge, Rahul Madineni, Nachiket Vader, Bhushan Nagarajan, Bhuvanesh Sainath
  • Patent number: 11498571
    Abstract: A road surface state estimation device includes a tire-side device and a vehicle-body-side system. The tire-side device is disposed in a tire. The vehicle-body-side system is disposed in a vehicle body. The tire-side device outputs a detection signal corresponding to a magnitude of vibration of the tire, generates road surface data based on the detection signal, and performs data communication with the vehicle-body-side system. The vehicle-body-side system acquires information related to the road surface state, performs the data communication with the tire-side device, transmits vehicle-body-side information indicating that the change in the road surface state occurs to the tire-side device when determining that a change in the road surface state occurs based on the information related to the road surface state, and estimates the road surface state based on the road surface data received by the second transceiver.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: November 15, 2022
    Assignee: DENSO CORPORATION
    Inventor: Takatoshi Sekizawa
  • Patent number: 11448150
    Abstract: For an engine that draws a complicated torque trajectory, it has been taken a lot of time to adapt a time constant for calculation of estimated torque. Therefore, an ECU 102 includes a target torque calculation unit 203 that calculates target torque of an engine for which torque-based engine control is performed using estimated torque, and an estimated torque calculation unit 210 that calculates the estimated torque by calculating a primary delay coefficient 304 equivalent to a time constant calculated for each control cycle based on a change in an actual intake air amount with respect to a target intake air amount of air sucked into the engine and performing primary delay processing on the target torque using the primary delay coefficient 304.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: September 20, 2022
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Yoshimasa Ishikawa, Shinya Sato
  • Patent number: 11441905
    Abstract: An inertial navigation device that includes a processor that is configured to: assume a vertical velocity and a lateral velocity of a vehicle to be 0, and estimate a roll angle, a pitch angle and an azimuth angle, which are attitude angles of the vehicle, based on angular velocities and accelerations detected by the inertial measurement device, a longitudinal velocity detected by a vehicle velocity sensor, and an initial value of the azimuth angle of the vehicle, and assume the vertical velocity of the vehicle to be 0, and estimate a current position of the vehicle based on the estimated attitude angles, the angular velocities and the accelerations detected by the inertial measurement device, the longitudinal velocity detected by the vehicle velocity sensor, a steering angle detected by a steering angle sensor, and an initial value of a position of the vehicle.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: September 13, 2022
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Daiki Mori, Yoshikazu Hattori, Hideki Sugiura, Hiroyuki Yamaguchi
  • Patent number: 11273909
    Abstract: A brake system for a vehicle is disclosed and includes an energy storage device configured to store and discharge energy, a plurality of wheels, one or more processors operatively coupled to the energy storage device, and a memory coupled to the one or more processors. The memory stores data comprising a database and program code that, when executed by the one or more processors, causes the brake system to determine the brake system is operating in a backup mode of operation. In response to determining the brake system is operating in the backup mode of operation, the brake system calculates a dynamic slip of the plurality of wheels. The brake system is caused to determine a slip error by comparing the dynamic slip with a target slip value of the plurality of wheels. The brake system is also caused to calculate an antiskid command based on the slip error.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: March 15, 2022
    Assignee: The Boeing Company
    Inventors: Nima Forghani, David T. Yamamoto, Steven Elliot Smith
  • Patent number: 11260756
    Abstract: A vehicle braking energy recovering method includes obtaining current location information of a vehicle, determining a current road scenario based on the current location information of the vehicle, determining the current road scenario based on a mapping relationship between a road scenario and a weight, determining a safe distance and a safe speed of the vehicle based on the weight, determining a target torque based on the safe distance and the safe speed of the vehicle, and controlling, based on the target torque, a motor of the vehicle to recover braking energy.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: March 1, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Zuqi Liu, Jianfeng Zheng, Jinbo Ma, Jiajun Huang, Wei Zhang
  • Patent number: 11263770
    Abstract: Systems and methods for navigating a host vehicle. The system may perform operations comprising receiving, from an image capture device, a plurality of images representative of an environment of the host vehicle; analyzing at least one of the plurality of images to identify a first object in the environment of the vehicle, wherein the first object and a road on which the first object is located are at least partially obscured by a second object in the environment of the vehicle; determining scale change information for the first object based on at least two of the plurality of images; determining, based on the determined scale change information for the first object, a lane position of the first object relative to a lane of the road on which the first object is located; and determining a navigational action for the host vehicle based on the determined lane position.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: March 1, 2022
    Assignee: Mobileye Vision Technologies Ltd
    Inventor: Gideon Stein
  • Patent number: 11254216
    Abstract: The invention relates to a control system for controlling a torque generator of a vehicle. The control system is configured to receive one or more electrical signals indicative of a surface indicator; receive one or more electrical signals indicative of a deceleration demand; select a surface type from a plurality of predetermined surface types based on said one or more electrical signals indicative of a surface indicator; determine a target vehicle deceleration in dependence on the selected surface type; determine, based on said one or more electrical signals indicative of a deceleration demand, a requirement to decelerate the vehicle; and in dependence on determining said requirement, output a control signal to the torque generator. The control signal is configured to cause the torque generator to provide the target vehicle deceleration.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: February 22, 2022
    Assignee: JAGUAR LAND ROVER LIMITED
    Inventors: Riccardo Fracchia, Orrin Hipkin
  • Patent number: 11094199
    Abstract: An apparatus for displaying steering information of a preceding vehicle may include: a processor of a host vehicle, where the processor receives steering information of the preceding vehicle among a plurality of platooning vehicles including the host vehicle; and a display controlled by the processor to display the steering information of the preceding vehicle.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: August 17, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Kyung Joo Bang, Hong Gi Park, Sang Yeob Lee, Il Hwan Kim, Seung Hyun Kim, Dong Hyuk Kim
  • Patent number: 11084529
    Abstract: A method of brake steering in a four-wheel drive utility vehicle having a driven front axle carrying at least two front wheels, a driven rear axle carrying at least two rear wheels, a powertrain delivering torque to the front axle via a first motor and to the rear axle via a second motor, a controlled clutch arrangement operable to couple the outputs of the first and second motors to vary the distribution of delivered torque between the front and rear axles, and independently operable service brakes on each of the front and rear wheels. The method includes determining a difference in wheel velocity between front and rear wheels; comparing the difference to a threshold value and, when exceeded, automatically engaging the controlled clutch arrangement. A determination is made as to whether or not the vehicle is performing a brake steering manoeuvre and the threshold value is adjusted accordingly.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: August 10, 2021
    Assignee: AGCO International GmbH
    Inventor: Martin Brenninger
  • Patent number: 11046293
    Abstract: Systems and methods for facilitating an automatic adjustment of a braking system is provided. In one example, a computer-implemented method can comprise generating, by a system operatively coupled to a processor, a braking curve model based on braking usage pattern data corresponding to one or more vehicles. The computer-implemented method can also comprise adjusting, by the system, a supplemental braking component of the first vehicle based on a simulation of one or more braking components corresponding to the one or more vehicles, wherein the one or more braking components is represented by the braking curve model.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: June 29, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Qi Cheng Li, Jie Ma, Li Jun Mei, Xin Zhang, Xin Zhou
  • Patent number: 11034353
    Abstract: A vehicle includes a torque converter bypass clutch, a wheel, a generator, and a controller. The torque converter bypass clutch is disposed between the wheel and the electric machine. The controller is programmed to, responsive to slip of the clutch exceeding a threshold during regenerative braking, energize the electric machine such that a torque being transferred from the wheel to the electric machine increases at a first rate and increase clutch pressure to decrease the slip. The controller is further programmed to, responsive to the slip decreasing to less than the threshold during the regenerative braking, adjust electric machine energization such the that torque being transferred from the wheel to the electric machine increases at a second rate that is greater than the first rate.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: June 15, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Andrew E. Burt, Kendrick Morrison
  • Patent number: 11027613
    Abstract: A regenerative braking control system includes at least one sensor adapted to sense a front tire impact event and transmit a sensor signal responsive to the front tire impact event during vehicle braking and a regenerative powertrain interfacing with the at least one sensor and adapted to reduce regenerative braking torque responsive to receiving the sensor signal from the at least one sensor. A regenerative braking control method is also disclosed.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: June 8, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Jinkoo Lee, Dale Scott Crombez, Daniel A. Gabor, Kerem Bayar
  • Patent number: 10899323
    Abstract: Systems and methods are described for coordinating and controlling vehicles, for example heavy trucks, to follow closely to behind each other, or linking to form a platoon. In one aspect, on-board controllers in each vehicle interact with vehicle sensors to monitor and control, for example, gross vehicle weight, axle loads, and stopping distance. In some aspects, two vehicles can determine information associated with their gross weight and axle load, and apply that information to assist with determining a bounding box indicating which vehicle will take longer to stop. Based on which vehicle will take longer to stop, an order of vehicles in a potential platoon is determined.
    Type: Grant
    Filed: July 8, 2018
    Date of Patent: January 26, 2021
    Assignee: Peloton Technology, Inc.
    Inventors: Joshua P. Switkes, Stephen M. Erlien
  • Patent number: 10766468
    Abstract: A method of providing an additive offset of a longitudinal acceleration signal of a traveling motor vehicle. The signal being measured by an inertial sensor is ascertained. At least the longitudinal acceleration signal, a braking signal, and a drive signal are detected. A force balance of the longitudinal dynamic of the motor vehicle is analyzed. The signals are detected both during at least one acceleration process as well as during at least one braking process. The signals during the acceleration processes are detected and/or analyzed separately from the signals during the braking processes, and the additive offset is ascertained by comparing the signals detected during the acceleration processes or the values calculated therefrom with the signals detected during the braking processes or the values calculated therefrom. The invention further relates to an electronic controller.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: September 8, 2020
    Assignee: Continental Teves AG & Co. OHG
    Inventors: Chen Zhang, Julien Levrier
  • Patent number: 10730491
    Abstract: Systems and methods are disclosed herein for controlling aircraft brakes. A brake control system may comprise a controller, and a tangible, non-transitory memory configured to communicate with the controller. The tangible, non-transitory memory having instructions stored thereon that, in response to execution by the controller, cause the controller to perform operations comprising: determining a braking power discrepancy of a wheel (eP,i), comparing the braking power discrepancy of the wheel (eP,i) to a threshold discrepancy value, and modulating a braking pressure applied to the wheel based on the comparison of the braking power discrepancy of the wheel (eP,i) to the threshold discrepancy value.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: August 4, 2020
    Assignee: GOODRICH CORPORATION
    Inventors: Martin Krucinski, Richard A. Poisson
  • Patent number: 10518771
    Abstract: A method for operating a speed control system of a vehicle is provided. The method comprises detecting an occurrence of a slip event, of a step encounter event, or of both events at a leading wheel of the vehicle. The method also comprises predicting that the occurrence of the detected event(s) will occur at a following wheel of the vehicle. The method yet further comprises automatically controlling vehicle speed, vehicle acceleration, or both vehicle speed and acceleration in response to the detection, the prediction, or both the detection and prediction. A speed control system comprising an electronic control unit (ECU) configured to perform the above-described methodology is also provided.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: December 31, 2019
    Assignee: Jaguar Land Rover Limited
    Inventors: Andrew Fairgrieve, Daniel Woolliscroft, James Kelly
  • Patent number: 10343531
    Abstract: A control device for a regenerative braking system having control electronics, the control electronics being designed, in consideration of at least one provided first variable with respect to a utilized coefficient of friction occurring in each case at the at least one wheel which may be regeneratively braked, to determine at least one preset variable with respect to at least one hydraulic minimum braking torque to be exerted on the at least one wheel which may be regeneratively braked, and, in consideration of at least the at least one determined preset variable, to determine the at least one setpoint variable.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: July 9, 2019
    Assignee: Robert Bosch GmbH
    Inventor: Andreas Erban
  • Patent number: 10328914
    Abstract: A method for setting a slip threshold for a vehicle movement dynamics control device of a motor vehicle is provided. The method includes defining a slip threshold starting from which the vehicle movement dynamics control device is activated in order to reduce slip, and determining wheel-specific minimum slip values for the wheels of the motor vehicle, which slip values are derived from the respective wheel-specific slip signals. The method also includes detecting a geometric slip by correlating all the determined wheel-specific minimum slip values with one another, and evaluating the wheel-specific minimum slip values that are correlated with one another. The method also includes raising the slip threshold in the event of geometric slip being detected. The present disclosure also relates to a vehicle movement dynamics control device.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: June 25, 2019
    Assignee: Continental Teves AG & Co. oHG
    Inventors: Henning Kerber, Manuel Kasten, Mario Roszyk, Dieter Burkhard
  • Patent number: 10179577
    Abstract: A method for controlling an emergency braking system of a motor vehicle having a stability control system when the stability control system is deactivated or placed in a reduced mode. The method includes the step of determining whether the stability control system is in a deactivated or reduced mode and keeping the automatic emergency braking system active even if the stability control system is deactivated or in a reduced mode. The system includes temporarily activating the stability control system if a hazardous situation exists requiring generation of an emergency braking command.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: January 15, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Stefan Kappes, Florian Schweter, Markus Jung
  • Patent number: 10160437
    Abstract: A control system for a vehicle includes a camera disposed at the vehicle and having a field of view rearward of the vehicle, and at least one non-imaging sensor disposed at the vehicle so as to sense a region at least rearward and partially sideward of the vehicle. During a reversing maneuver of the vehicle along a pathway, the control, responsive to processing of image data captured by the camera, determines edges of the pathway. During the reversing maneuver of the vehicle along the narrow pathway, the control, responsive to processing of data sensed by the non-imaging sensor, determines distances to objects present at or near the determined pathway and rearward and sideward of the vehicle. The control, responsive to determination of the pathway and determination of objects present along the pathway, is operable to steer the vehicle along the pathway to reverse the vehicle along the pathway.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: December 25, 2018
    Assignee: MAGNA ELECTRONICS INC.
    Inventor: Anthony N. Rinaldo
  • Patent number: 10082436
    Abstract: Method for processing a measurement signal (x) from a pressure measurement cell in order to generate an output signal (y) with the aid of a filter unit (10), wherein the method involves generating the output signal (y) with the aid of the filter unit (10) by at least reducing, preferably eliminating, a noise signal contained in the measurement signal (x), continuously determining a difference between the measurement signal (x) and the output signal (y), and changing a characteristic of the filter unit (10) as soon as the difference becomes greater than a threshold value, wherein the changed characteristic of the filter unit (10) remains as long as the difference becomes smaller than the threshold value, and wherein the changing of the filter characteristic involves decreasing the reduction in the noise signal present in the measurement signal (x).
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: September 25, 2018
    Assignee: INFICON GMBH
    Inventor: Felix Mullis
  • Patent number: 9950701
    Abstract: What is described is a tire pressure sensor for use in a wheel of aircraft landing gear. The tire pressure sensor includes a position sensor configured to detect a movement of the wheel and generate a wheel movement signal based on the movement. The tire pressure sensor also includes a processor coupled to the position sensor. The processor is configured to receive the wheel movement signal, determine a wheel rotational speed of the wheel based on the wheel movement signal and generate a wheel rotational speed signal based on the wheel rotational speed.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: April 24, 2018
    Assignee: GOODRICH CORPORATION
    Inventors: Steven Keller, Paul L. Summers, Lane B. Robbins, Scott Streng
  • Patent number: 9890517
    Abstract: A hybrid wheel loader includes a control device (200) that estimates output power of an engine (1) and an electricity storage device (11) when the hybrid wheel loader is inferred on the basis of output values of detectors (62, 63) to be traveling towards an object of excavation in order to perform an excavating work, and then, if the output power is less than target power considered necessary for the excavating work, accelerates the engine (1) to a target revolution speed while increasing the electric power supplied from the electricity storage device to a traveling motor (9). Accordingly, power necessary for excavation can be drawn from the engine even when the engine revolution speed is low and there is a fear of power deficiency occurring at the time of the excavating work.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: February 13, 2018
    Assignee: KCM CORPORATION
    Inventors: Satoru Kaneko, Takashi Ikimi, Noritaka Itou, Satoshi Sekino
  • Patent number: 9604526
    Abstract: A method for controlling torque delivery in a vehicle powertrain using an enhanced limited operating strategy. The strategy is implemented when a powertrain controller fails to respond properly to a driver command for traction wheel torque whereby a modified wheel torque at vehicle traction wheels under driver control is made available.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: March 28, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Greg Edward Gauthier, John Proietty
  • Patent number: 9604612
    Abstract: A brake hydraulic pressure control device for a vehicle in which operation of a hydraulic pressure adjustment unit that can carry out adjustment involving individually increasing/decreasing brake hydraulic pressures applied to wheel brakes for front and rear wheels is controlled for allowing differential pressure between brake hydraulic pressures of the left and right wheel brakes, wherein allowable differential pressure setting means is arranged for setting the allowable differential pressure corresponding to the coefficient of friction of a road surface, hydraulic pressure acquisition means acquires a lock hydraulic pressure, which is a hydraulic pressure when starting anti-lock brake control for the respective wheel brake, and when the lock hydraulic pressure of the wheel brakes for the front wheels acquired by the hydraulic pressure acquisition means is no greater than a predetermined value, application of the allowable differential pressure corresponding to the coefficient of friction of the road surface
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: March 28, 2017
    Assignees: Autoliv Nissin Brake Systems Japan Co., Ltd., Honda Motor Co., Ltd.
    Inventors: Tomoaki Sekiya, Shigehiro Honda, Ryosuke Ueda
  • Patent number: 9457626
    Abstract: A tire separation warning system and method that includes a sensor that senses pressure of a tire and a receiver that calculates the amount of change in tire radius from the pressure of the tire received from the sensor. In addition, the receive estimates tire separation risk. A display warns a driver of the tire separation risk, when the tire separation risk is transmitted from the receiver.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: October 4, 2016
    Assignee: Hyundai Motor Company
    Inventor: Jong Ho Lee
  • Patent number: 9365196
    Abstract: A method and device for operating a wheel slip control apparatus, including determining wheel speeds of wheels compensated with respect to wheel speed differences during a turn as input variables for the wheel slip control apparatus, with which a) a neutral steering, understeering or oversteering driving condition of the vehicle is determined from the driving behavior during a turn, b) depending on the determined condition of the vehicle, either the reference or actual yaw rate is used to calculate a turn radius related to a selected point on the vehicle, c) wheel-related turn radii for at least some wheels are determined from the turn radius related to the selected point, d) reference factors are determined from the wheel-related turn radii and a common reference turn radius for at least some wheels, and e) the compensated wheel speeds are each determined from the reference factors and measured wheel speeds for at least some wheels, and f) the compensated wheel speeds are used as input variables for a wheel
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: June 14, 2016
    Assignee: KNORR-BREMSE SYSTEME FUER NUTZFAHRZEUGE GMBH
    Inventor: Martin Vorreiter
  • Patent number: 9277385
    Abstract: A method for requesting emergency assistance for a vehicle involved in an accident. The method includes the following: storing vehicle operating conditions prior to the accident in a storage device; detecting the accident; after the accident, deactivating charging of a smartphone being charged on a wireless charging pad; transmitting to the smartphone the vehicle operating conditions stored prior to the accident; transmitting the vehicle operating conditions from the smartphone to emergency authorities; and calling the emergency authorities using the smartphone and initiating handsfree communication with the emergency authorities.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: March 1, 2016
    Assignees: Denso International America, Inc., DENSO CORPORATION
    Inventor: Reiji Iwamoto
  • Patent number: 9221436
    Abstract: A brake controlling unit detects a brake actuation object based on images captured by a running environment recognizing unit and sets a target brake pre-pressure actuation distance based on a relative speed between the brake actuation object and a subject vehicle. When an actual distance between the subject vehicle and the brake actuation object reaches the target brake pre-pressure actuation distance, the brake controlling unit outputs to a brake driving unit a driving signal that generates a brake pre-pressure to make the brake clearance of a brake minimal.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: December 29, 2015
    Assignee: FUJI JUKOGYO KABUSHIKI KAISHA
    Inventor: Yoshiyuki Shimizu
  • Patent number: 9221473
    Abstract: Disclosed is a travel velocity compensation apparatus for railway vehicles and a method thereof for compensating a travel velocity when there is generated a slide between a wheel and a railway, the apparatus including a velocity measurement unit measuring a travel velocity of a railway vehicle, a velocity estimation unit estimating the travel velocity using travel information of railway vehicle and rail information received from at least one sensor, a detection unit generating wheel slide information by determining whether wheels of the railway vehicle slide, using the travel velocity of the railway vehicle measured by the velocity measurement unit and the travel velocity estimated by the velocity estimation unit, and a selection unit selecting, as a travel velocity, any one of the travel velocity measured by the velocity measurement unit using the wheel slide information generated by the detection unit and the travel velocity estimated by the velocity estimation unit.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: December 29, 2015
    Assignee: LSIS Co., Ltd.
    Inventors: Jong Chul Jung, Yong Gee Cho
  • Patent number: 9156451
    Abstract: Systems and methods for a tire/runway friction property estimation method based on measured wheel speed, calculated acceleration, wheel reference and tire normal force estimation are disclosed. Based on the resulting estimations, a map and/or function of position for the friction properties may be formed and transmitted to external systems after an aircraft stop is completed.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: October 13, 2015
    Assignee: GOODRICH CORPORATION
    Inventors: Richard Paul Metzger, Jr., Richard Kolk
  • Patent number: 9156465
    Abstract: A method of operating a brake-assist-steering system of a vehicle comprises the steps of receiving a signal from a wheel position detector. A theoretical wheel speed for an inside non-steered wheel is computed. A brake operably associated with the inside non-steered wheel is actuated when an actual wheel speed of the inside non-steered wheel is greater than the theoretical wheel speed of the inside non-steered wheel.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: October 13, 2015
    Assignee: EATON CORPORATION
    Inventor: Steven John Zumbusch
  • Patent number: 9150109
    Abstract: A braking control device, includes a regenerative braking control part, a wheel speed differential detection part, and a regenerative restriction part. The regenerative braking control part is configured to carrying out regenerative braking on the drive wheels based on a deceleration request operation. The wheel speed differential detection part is configured to determine a wheel speed differential between the driven wheel speed and the regenerative braking wheel speed. The regenerative restriction part is configured to restrict the regenerative braking amount when the wheel speed differential exceeds a restriction initiation threshold value. The regenerative restriction part, during restriction of the regenerative braking amount, is configured to repeatedly carrying out a restriction in accordance with a large restriction phase in which a decrease in gradient of the regenerative braking amount is large and a restriction in accordance with a small restriction phase in which the decrease in gradient is small.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: October 6, 2015
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Keigo Ajiro
  • Patent number: 9150204
    Abstract: A braking force control device can control braking forces of the respective wheels of a vehicle, suppresses an increase of the braking force of a first wheel that is a wheel having a relatively large slip amount in a pair of right/left wheels and increases the braking force of a second wheel that is a wheel having a relatively small slip amount. The braking force control device may suppress the increase of the braking force of the first wheel before the friction coefficient of a road surface to the first wheel reaches a peak and when the friction coefficient is in the vicinity of the peak. It is preferable to suppress the increase of the braking force of the first wheel by holding the braking force of the first wheel.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: October 6, 2015
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, ADVICS CO., LTD.
    Inventors: Satoshi Udaka, Noritaka Yamada, Hideyuki Aizawa, Akifumi Doura
  • Patent number: 9128115
    Abstract: In accordance with the present inventive concept, there is provided a method for evaluating deceleration of a vehicle. The method comprises: measuring a deceleration of the vehicle during a first time interval, estimating a speed of the vehicle at a first time instant in a second time interval, which is different from the first time interval, based on the measured deceleration, measuring a speed of the vehicle at the first time instant, comparing the estimated speed to the measured speed, and generating a signal based on the comparison. There is also provided an apparatus for evaluating deceleration of a vehicle.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: September 8, 2015
    Assignee: DRIVEC AB
    Inventor: Johan Göthe
  • Patent number: 9102404
    Abstract: The invention relates to a method for controlling the deceleration on the ground of a vehicle. The method obtains, from the crew of the vehicle or from an outside operator, parameters relating to its current position and its current speed. Then it determines a reference position and speed of the vehicle, the reference position being a theoretical position to be reached by the vehicle. Finally it determines, from indicated parameters and from reference parameters, a deceleration command with a view to ending up at a target position at a preselected speed.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: August 11, 2015
    Assignee: AIRBUS OPERATIONS S.A.S.
    Inventors: Malika Essadouni, Xavier Dal Santo
  • Patent number: 9052713
    Abstract: A method for controlling a vehicle, including determining a speed curve on a coasting route, in order to let the vehicle on the coasting route coast from an actual speed to a setpoint speed, detecting an additional vehicle approaching the vehicle from behind on the coasting route, and raising the speed of the vehicle compared to the determined speed behavior on the coasting route, in order to produce a predetermined threshold distance from the additional vehicle.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: June 9, 2015
    Assignee: ROBERT BOSCH GMBH
    Inventors: Udo Schulz, Rainer Bartsch
  • Publication number: 20150149056
    Abstract: A vehicle brake system and a method of control. The vehicle brake system may include a friction brake and a secondary brake that may be applied to slow rotation of a vehicle wheel when a wheel slip condition is detected.
    Type: Application
    Filed: November 22, 2013
    Publication date: May 28, 2015
    Applicant: ArvinMeritor Technology, LLC
    Inventors: Yixin Yao, John Ashley Peterson
  • Patent number: 9043150
    Abstract: Some embodiments provide a mapping application that provides routing information to third-party applications on a device. The mapping application receives route data that includes first and second locations. Based on the route data, the mapping application provides a set of routing applications that provide navigation information. The mapping application receives a selection of a routing application in the set of routing applications. The mapping application passes the route data to the selected routing application in order for the routing application to provide navigation information.
    Type: Grant
    Filed: September 30, 2012
    Date of Patent: May 26, 2015
    Assignee: APPLE INC.
    Inventors: Scott Forstall, Marcel van Os, Bradford A. Moore, Brady A. Law
  • Patent number: 9037377
    Abstract: A vehicle includes a braking force application device that executes braking force holding control which holds braking force irrespective of braking operation by a driver during a stop on a slope; and a control limiting device that limits execution of the braking force holding control when a shift position is set in a neutral position.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: May 19, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Mitsuaki Higa, Katsuhiko Yamaguchi
  • Patent number: 9020744
    Abstract: A method of controlling a three-wheeled vehicle comprises: determining a state of a load sensor associated with a portion of vehicle; selecting a first start mass when the load sensor is in a non-loaded state; selecting a second start mass when the load sensor is in a loaded state; determining at least one vehicle parameter during operation of the vehicle; determining a calculated mass based at least in part on the at least one vehicle parameter; determining an effective mass based at least in part on the calculated mass and a selected one of the first and second start masses; defining an output of an electronic stability system of the vehicle based at least in part on the effective mass; and controlling a stability of the vehicle using the output of the electronic stability system.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: April 28, 2015
    Assignee: Bombardier Recreational Products Inc.
    Inventor: Mario Dagenais
  • Publication number: 20150105990
    Abstract: A method of controlling vehicle stability includes the steps of obtaining a measured yaw rate from the vehicle, generating a predicted yaw rate based on the measured yaw rate, calculating a first error signal based on a difference between the measured yaw rate and a desired yaw rate, calculating a second error signal based on a difference between the predicted yaw rate and the desired yaw rate, and sending a selected one of the first and second error signals to a yaw controller to conduct stability control. The predicted yaw rate can be generated by sending the measured yaw rate through a lead filter.
    Type: Application
    Filed: December 16, 2014
    Publication date: April 16, 2015
    Inventors: Christian T. Chimner, John A. Grogg
  • Patent number: 9002578
    Abstract: A vehicle control system configured to judge a vehicle behavior or a driving preference of a driver based on acceleration of the vehicle including at least longitudinal acceleration. An acceleration value used in the judgment is obtained on the basis of a weighted detection value of the actual longitudinal acceleration of the vehicle, and a weighted parameter which is varied by an operation to increase a driving force of the vehicle executed by the driver. A weight on the parameter is reduced in case a weight on the detection value of the longitudinal acceleration is increased, and the weight on the parameter is increased in case the weight on the detection value of the longitudinal acceleration is reduced.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: April 7, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shin Noumura, Kaiji Itabashi, Toshio Tanahashi, Keisuke Takeuchi, Yoshimitsu Agata, Tomohide Kawasaki
  • Patent number: 9002609
    Abstract: A vehicle brake control system includes a regenerative braking control component, a frictional braking control component, a calculating component and a controlling component. The regenerative braking control component controls a regenerative braking device to provide a regenerative braking torque. The frictional braking control component controls a frictional braking device to provide a frictional braking torque. The calculating component calculates a regenerative braking torque filter processing value based on a fluctuation frequency of the regenerative braking torque. The controlling component, during a first condition, operates a motorized power assist control device based on the regenerative braking torque filter processing value, instead of the regenerative braking torque, to moderate the frictional braking torque, such that the regenerative braking torque and the moderated frictional braking torque provide a target braking torque based on a braking operation.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: April 7, 2015
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kensuke Nakamura, Noriaki Fujiki, Keigo Ajiro
  • Patent number: 8996268
    Abstract: A method is provided for controlling a brake system of a motor vehicle having a brake device (40) with a hydraulic brake unit (41) and a recuperation brake unit (42). The method includes calculating (S1) a hydraulic brake force characteristic curve (B2) of the hydraulic brake unit (41) on the basis of at least one detected characteristic of the brake system, selecting (S2) a generator-based brake force characteristic curve (G1-G4) of the recuperation brake unit (42) on the basis of a predefined criterion and as a function of the calculated hydraulic brake force characteristic curve (B2), and controlling (S3) the hydraulic brake unit (41) and the recuperation brake unit (42) in accordance with a detected degree of actuation of the brake pedal (10), the calculated hydraulic brake force characteristic curves (B2), and the selected generator-based brake force characteristic curve (G1-G4).
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: March 31, 2015
    Assignee: Dr. Ing. h.c.F. Porsche Aktiengesellschaft
    Inventors: Thomas Garbe, Bjoern-Hendrik Reinhard
  • Patent number: 8989979
    Abstract: A four-wheel-drive vehicle includes a clutch that is able to allow and interrupt transmission of driving force to a propeller shaft, and a traction control unit that controls at least one of the driving force generated by an engine and braking force applied to right and left front wheels to suppress a slip of the right and left front wheels. When the drive mode is switched from a two-wheel-drive mode to a four-wheel-drive mode, if the relative rotational speed between a first rotary member and a second rotary member constituting a clutch is equal to or higher than a predetermined value, an ECU outputs a control command signal for suppressing the slip of the right and left front wheels to the traction control unit.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: March 24, 2015
    Assignee: JTEKT Corporation
    Inventors: Kenta Taniguchi, Akira Kodama, Tomoaki Kato, Masaki Mita
  • Patent number: 8983749
    Abstract: A road friction coefficient estimation system and method uses tire load estimation sensors attached to a vehicle's tires. Tire load and slip angle for each tire are estimated from sensor data. From vehicle CAN bus sensors, vehicle acceleration and yaw rate operational parameters are obtained and a dynamic observer model calculates lateral and longitudinal force estimates on each of the tires. An individual wheel force estimation is calculated on each tire from the lateral and longitudinal force estimates for each tire. From the dynamic slip angle estimation on each tire and the individual wheel force estimation on each of the tires, a model-based friction estimation is made.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: March 17, 2015
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Kanwar Bharat Singh