With Means For Detecting Wheel Slip During Vehicle Acceleration And Controlling It By Reducing Application Of Power To Wheel Patents (Class 180/197)
  • Patent number: 11180146
    Abstract: A vehicle control system configured to control a braking operation of a hitch ball to a coupler on a trailer. The system may comprise a vehicle brake control system, a maneuvering system, an image sensor configured to capture an image data, and a velocity sensor. The system may also comprise a vehicle mass sensor configured to detect a vehicle mass and a controller. The controller may be configured to control the maneuvering system of the vehicle along a vehicle path. The controller may also identify a coupler distance based on the image data depicting a coupler of the trailer. The controller may also calculate a stopping distance for the braking operation based on a plurality of braking parameters, wherein the braking parameters comprise the velocity, the brake pressure, and the vehicle mass.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: November 23, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Li Xu, Eric Hongtei Tseng, Luke Niewiadomski
  • Patent number: 11148660
    Abstract: This vehicle turning control device controls the turning characteristic of a vehicle having braking/driving sources capable of independently controlling a braking/driving torque for each wheel. The vehicle turning control device includes a yaw moment control device for controlling a yaw moment occurring in the vehicle, and a slip determination device for determining a road surface state from the angular velocity and the angular acceleration of the wheel and the vehicle speed. The yaw moment control device includes a control gain calculator for calculating a control gain, a target yaw rate calculator for calculating a target yaw rate from the vehicle speed, the steering angle, and the control gain, and a yaw moment calculator for calculating the braking/driving torque for each wheel in accordance with the target yaw rate. The control gain calculator calculates the control gain on the basis of a determination result of the slip determination device.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: October 19, 2021
    Assignee: NTN CORPORATION
    Inventor: Yuta Suzuki
  • Patent number: 11142209
    Abstract: A road friction is determined for a road location based on a traffic speed determined from respective speeds of each of a plurality of vehicles. A vehicle can be operated based on the determined road friction.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: October 12, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Kyle Simmons, Eric Hongtei Tseng, Michael Hafner, Mohsen Lakehal-Ayat
  • Patent number: 11143249
    Abstract: A driving force distribution control device mounted on a four-wheel drive vehicle is provided. A coupling mechanism controller connects a drive shaft with an auxiliary driving wheel and sets a fastening force as a first fastening force, when an increase rate in an accelerator opening becomes more than a given value and a vehicle speed is below a given first speed, and changes the fastening force from the first fastening force to a second fastening force, when a slip of at least one of main driving wheels is detected after the fastening force is set to the first fastening force, and before a given time period has lapsed from the setting of the fastening force, or before the vehicle speed becomes faster than a given second speed. The second fastening force at least immediately after the change of the fastening force is a value larger than the first fastening force.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: October 12, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Yasumasa Imamura, Naoki Nobutani, Keisuke Haruta, Daisuke Umetsu, Yasushi Yagi
  • Patent number: 11136931
    Abstract: Provided is a vehicle control system capable of controlling the behavior of a vehicle, in conformity to a tire longitudinal spring constant, to improve responsivity and linear feeling of the vehicle behavior with respect to a steering manipulation. The vehicle control system comprises a steering angle sensor (8) and a PCM (14). The PCM is configured to set, based on a detection value of the steering angle sensor, an additional deceleration to be added to a vehicle (1), and control the vehicle to generate the set additional deceleration in the vehicle, wherein the additional deceleration is set to be larger when a tire longitudinal spring constant (Kt) of each road wheel of the vehicle is relatively small than when it is not relatively small.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: October 5, 2021
    Assignee: MAZDA MOTOR CORPORATION
    Inventor: Daisuke Umetsu
  • Patent number: 11136040
    Abstract: A method of determining wheel slippage condition in a work vehicle includes moving the work vehicle from a first position to a second position, determining a drivetrain ground speed of the work vehicle using a drivetrain component, determining a predicted ground speed of the work vehicle using a sensor, detecting a wheel slippage condition by comparing the drivetrain ground speed to the predicted ground speed, and generating a driveline modification command to adjust propulsion power of the drivetrain component until the wheel slippage condition reaches a specified target. A method of adjusting acceleration for a work vehicle includes measuring a drivetrain acceleration, measuring an absolute acceleration, using the absolute acceleration to predict a ground speed, determining a steady state condition based on the commanded machine motion, the drivetrain speed, and the absolute acceleration, and modifying the predicted ground speed based on determination of the steady state condition.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: October 5, 2021
    Assignee: DEERE & COMPANY
    Inventors: Daniel M. Kassen, Michael G. Kean
  • Patent number: 11124193
    Abstract: Vehicle alert and control systems and methods taking into account a detected road friction at a following vehicle and a predicted road friction by the following vehicle. The detected road friction between the following vehicle tires and the road surface may be assessed using a variety of methodologies and is used to compute a critical safety distance between the following vehicle and the preceding vehicle and a critical safety speed of the following vehicle. The predicted road friction ahead of the following vehicle may also be assessed using a variety of methodologies (lidar, camera, and cloud-based examples are provided) and is used to compute a warning safety distance between the following vehicle and the preceding vehicle and a warning safety speed of the following vehicle. These functionalities may be applied to vehicle/stationary object warning and response scenarios as well.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: September 21, 2021
    Assignee: Volvo Car Corporation
    Inventors: Saurabh Gawande, Srikar Muppirisetty, Sohini Roy Chowdhury, Minming Zhao
  • Patent number: 11117585
    Abstract: In a method for drive optimization in a motor vehicle including at least two drivable wheels at a vehicle axle having individually settable drive torque, to increase the propelling force, the drive torque at at least one wheel is increased in such a way that an increased longitudinal slip of at least 20% results at the wheel.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: September 14, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Lars Bieniek, Martin Nordmann
  • Patent number: 11091030
    Abstract: A vehicle includes a tandem axle system having an inter-axle differential and clutching assembly, a forward or first axle assembly, and a rear or second axle assembly. The inter-axle differential and clutching assembly includes a differential mechanism having first and second side gears and a clutch mechanism having a clutch member and an actuator assembly. At least one of the first axle assembly and the second axle assembly is in selective driving engagement with the inter-axle differential and clutching assembly.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: August 17, 2021
    Assignee: Dana Heavy Vehicle Systems Group, LLC
    Inventors: Rahul S. Shah, Jayawant Chaudhari
  • Patent number: 11084470
    Abstract: A method for regulating a vehicle-actual-deceleration in a vehicle with an ABS brake system includes detecting the vehicle-actual-deceleration; determining a target vehicle deceleration and detecting at least one actual wheel rotational behavior. The method further includes calculating actuation times for actuation of pressure control valves of the ABS brake system associated with the wheels of the first vehicle axle and the wheels of the further vehicle axle and determining correction actuation times if at least one of the respective calculated actuation times is less than a minimum actuation time associated with the respective pressure control valve. Calculation of each of the respective actuation times is carried out at least for all of a first number of pressure control valves with which wheels are associated whose rotational behavior follows the at least one actual wheel rotational behavior.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: August 10, 2021
    Assignee: ZF CV SYSTEMS HANNOVER GMBH
    Inventors: Horst Eckert, Florian Schwagmeyer
  • Patent number: 11084375
    Abstract: A drive force transmission apparatus is mountable on a four-wheel drive vehicle switchable between a four-wheel drive mode that transmits a drive force of an engine to front wheels and rear wheels, and a two-wheel drive mode that transmits the drive force to only the front wheels. The drive force transmission apparatus allows adjustment of the drive force to the rear wheels, and includes a multi-plate clutch, a piston for axially pressing the multi-plate clutch, an actuator for axially moving the piston, and a control unit for controlling the actuator. Upon satisfaction of a predetermined condition that indicates a high probability of the vehicle needing to be switched from the two-wheel drive mode to the four-wheel drive mode, the control unit causes the actuator to displace the piston by a predetermined amount with respect to an initial position of the piston toward the multi-plate clutch.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: August 10, 2021
    Assignee: JTEKT CORPORATION
    Inventors: Tomohiro Nozu, Tsutomu Matsumoto, Tomoaki Kato, Akiyoshi Kakita, Kenta Taniguchi
  • Patent number: 11084471
    Abstract: A braking control method according to friction of road surface includes computing a real-time wheel speed according to a signal received from a wheel speed sensor; storing the real-time wheel speed as a wheel initial velocity when a braking event occurs; determining a relative-peak value according to the real-time wheel speed; estimating a vehicle deceleration according to the relative-peak value and the wheel initial velocity; computing an adjustment parameter according to the vehicle deceleration and a tire slip threshold, wherein the adjustment parameter reflects friction coefficient of road surface; and adjusting time length of an enhancement stage in an enhance-pressure control period of a stepped pressure-increasing phase according to the adjustment parameter; or adjusting time length of a reduction stage in a reduce-pressure control period of a stepped pressure-decreasing phase according to the adjustment parameter.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: August 10, 2021
    Assignee: AUTOMOTIVE RESEARCH & TESTING CENTER
    Inventors: Hsin-Chuan Lin, Jia-Le Wei
  • Patent number: 11077835
    Abstract: A control apparatus for a vehicle includes: a first road surface friction coefficient calculator; a second road surface friction coefficient calculator; and a braking and driving force controller. The first road surface friction coefficient calculator calculates a first road surface friction coefficient that is a friction coefficient of a road surface in a contact with a wheel. The second road surface friction coefficient calculator calculates a second road surface friction coefficient on a basis of a detection value from a contactless sensor that contactlessly detects a road surface state.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: August 3, 2021
    Assignee: SUBARU CORPORATION
    Inventors: Yuya Maeda, Noeru Sato, Fumiya Sato
  • Patent number: 11077757
    Abstract: A vehicle includes: a plurality of wheels; a motor for providing a driving force to the plurality of wheels based on electrical energy stored in a battery; a modulator for controlling a number of rotations of the motor; and a controller for controlling the modulator based on a first control value at a coasting control and controlling the modulator based on a second control value when a wheel slip occurs in a safety control.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: August 3, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Song Il Park
  • Patent number: 11072217
    Abstract: In a pneumatically sprung vehicle (1) with a front steering axle (A), one rear drive axle (TA) and one trailing axle (SA), traction is controlled by an air suspension system (36), having a “pressure ratio control” mode maintaining a parametrised ratio of air pressures in supporting bellows (2, 4) of the drive axle (TA) compared to air pressures in supporting bellows (3, 5) of the trailing axle (SA); a “relieve loading of trailing axle” mode checking whether relieving of the loading of the trailing axle (SA) is possible without overloading the drive axle (TA); and an “optimum traction” control mode increasing the pressure in the supporting bellows (2, 4) of the drive axle (TA) and reducing the pressure in the supporting bellows (3, 5) of the trailing axle (SA) without exceeding the maximum permissible axle load of the drive axle (TA) while maintaining residual pressure of the trailing axle (SA).
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: July 27, 2021
    Assignee: WABCO GmbH
    Inventor: Uwe Lentz
  • Patent number: 11066095
    Abstract: A controller includes a control circuit configured to calculate a target corresponding steered angle that is a target value of a corresponding steered angle based on the transmission ratio associated with the vehicle speed. The corresponding steered angle is a rotation angle of a rotation shaft, which is convertible to the steered angle whose magnitude is changed relative to a value indicating the steering angle. The control circuit is configured to control the actuation of the motor so that an actual corresponding steered angle is a final target corresponding steered angle that is based on the target corresponding steered angle. The control circuit is configured to calculate the target corresponding steered angle by adjusting the transmission ratio based on a value indicating acceleration or deceleration of a vehicle.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: July 20, 2021
    Assignees: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Kodera, Masayuki Kita, Toru Takashima, Tetsuya Morino
  • Patent number: 11059467
    Abstract: A braking force control device is provided which has a control unit that controls an upstream braking actuator that generates a common upstream pressure for four wheels and a downstream braking actuator that individually controls the braking pressure supplied to each wheel using the upstream pressure. The control unit controls the upstream pressure so that the braking pressure of the front wheels is permitted to be higher than a lock pressure of the rear wheels but does not become higher than a lock pressure of the front wheels, and suppresses an increase of the braking pressure of the rear wheels so that the braking pressure does not become higher than the lock pressure of the rear wheels, in a situation where the upstream pressure can be supplied to each braking force generating device but the braking pressure of any one of the wheels cannot be decreased.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: July 13, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Satoru Akahane
  • Patent number: 11059488
    Abstract: A control device of a vehicle including an engine, a power transmission device, a shift operation device, and a switching device includes: a shift-switching control portion outputting the control command signal when it is determined that the shift switching is permitted, and not outputting the control command signal when it is determined that the shift switching is prohibited, at the time of a shift switching operation; and an engine-starting control portion outputting a first signal causing the shift-switching control portion to determine that the shift switching is prohibited and initiating starting of the engine after determining that the shift switching is not being performed when it is determined that the shift switching is permitted at the time of an engine starting operation performed by the driver for starting the engine, and immediately initiating the engine when it is determined that the shift switching is prohibited.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: July 13, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takashi Tomita
  • Patent number: 11052767
    Abstract: The motor vehicle comprises a first motor configured to drive front wheels; a second motor configured to drive rear wheels; and a control device configured to control the first motor and the second motor, such that the motor vehicle is driven with a required torque for driving. The control device controls the first motor and the second motor to set a larger value to a rear wheel distribution ratio that is a ratio of a torque of the rear wheels to the required torque, when the motor vehicle runs on a low ? road having a road surface friction coefficient equal to or less than a predetermined value and is currently turned, compared with a value when the motor vehicle does not run on the low ? road or when the motor vehicle is not currently turned.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: July 6, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroyuki Tsukashima
  • Patent number: 11034240
    Abstract: A method for a speed controller for a motor vehicle, wherein a speed prescription is set by the driver and automatic adjustment of the speed to the speed prescription is carried out at least by setting an engine torque prescription, wherein at the start of the speed control the engine torque prescription is set to an initial value, wherein the initial value is determined in accordance with at least one parameter.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: June 15, 2021
    Inventors: Andreas Brizzi, Johannes Bufe, Kerstin Grohmann, Frank Haller, Benjamin Jüstel, Jörg Kaiser, Philipp Marioneck
  • Patent number: 11034359
    Abstract: A control device for a vehicle as at least one input for vehicle data of the vehicle and at least one output for manipulated values for actuators of the vehicle. The control device is configured to determine manipulated values for the actuators of the vehicle on the basis of a first single track model for the vehicle and of a second single track model for a reference vehicle in order to approximate the side forces of the vehicle in the first single track model to the side forces of the reference vehicle in the second single track model.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: June 15, 2021
    Inventor: Yannik Peters
  • Patent number: 11031891
    Abstract: A modified reference transformation removes weighting factor from predictive torque control, and a reduced order PI observer based disturbance rejection control (DOBC) is combined to improve transient response. The resulting scheme shows superior performance as compared to previously proposed methods. The superiority of the disclosed MPTC is demonstrated by lower load estimation error and effective current surge suppression at speed jumps while maintaining comparable inner loop performance. Moreover, removal of weighting factor from the cost function gives an additional benefit of optimal balance between flux and torque regulation as evident from simulation and experimental results.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: June 8, 2021
    Assignee: KING ABDULAZIZ UNIVERSITY
    Inventors: Hussain Bassi, Muhyaddin Jamal Hosin Rawa, M. Abbas Abbasi, Abdul Rashid Husain, Nik Rumzi Nik Idris, Waqas Anjum
  • Patent number: 11021057
    Abstract: A transfer case with an actuator for operating a two-speed transmission (i.e., range mechanism) and a clutch (i.e., mode mechanism). The actuator employs a motor-driven cam structure that coordinates the movement of a first fork, which is associated with the range mechanism, and a second fork that is associated with the mode mechanism. A resilient coupling is employed to provide compliance between the motor and the cam structure in the event that tooth-on-tooth contact inhibits the range mechanism from changing from a high-range mode and a low range mode. Compliance is provided between the cam structure and the second fork in the event that tooth-on-tooth contact inhibits the mode mechanism from changing from a 2WD mode to a 4WD mode. A sensor system identifies the placement of the first and second forks in various positions and responsively generates associated sensor signals.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: June 1, 2021
    Assignee: BorgWarner Inc.
    Inventors: Abhinav Jain, Stephen D. Tucker, Travis J. Wentz
  • Patent number: 11015369
    Abstract: Disclosed are various embodiments of lock devices, systems, and methods. A locking system includes a locking mechanism with a controller configured to provide an actuation signal to an electronic actuator to extend or retract a locking mechanism and to adjust an allowable peak current for operating the electronic actuator to throw the deadbolt based on whether the allowable peak current is sufficient for the locking mechanism to achieve its locked or unlocked positions. The allowable peak current can be adjusted over time between a minimum and maximum peak current, thus optimizing the actual current draw from the electronic actuator required to throw the locking mechanism and minimizing power consumption.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: May 25, 2021
    Assignee: Schlage Lock Company LLC
    Inventors: David M. Baty, Donald L. Beene, Raymond F. Rettig, William B. Ainley
  • Patent number: 11008029
    Abstract: A system includes a locator device and one or more processors operably connected to the locator device. The locator device determines a trailing distance between a trailing vehicle system that travels along a route and a leading vehicle system that travels along the route ahead of the trailing vehicle system in a same direction of travel. The one or more processors compare the trailing distance to a first proximity distance relative to the leading vehicle system. In response to the trailing distance being less than the first proximity distance, the one or more processors set a permitted power output limit for the trailing vehicle system to be less than a maximum achievable power output for the trailing vehicle system, the permitted power output limit being set based on a power-to-weight ratio of the leading vehicle system.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: May 18, 2021
    Assignee: TRANSPORTATION IP HOLDINGS, LLC
    Inventors: James D. Brooks, Harry Kirk Mathews, Jr.
  • Patent number: 10981554
    Abstract: A system for delivering fluid in a machine is provided. The system includes a pump, a first valve disposed downstream of the pump, a check valve disposed downstream of the first valve, at least one accumulator disposed downstream of the check valve, and an auxiliary system disposed upstream of the check valve. The system further includes a control unit configured to receive a signal indicative of a fluid demand from the auxiliary system. The control unit is also configured to selectively control the first valve in a first position to limit flow of the fluid from the pump to the auxiliary system, and in a second position to allow flow of the fluid from the pump to the auxiliary system based, at least in part, on the received signal. The check valve limits flow of a fluid from the at least one accumulator to the auxiliary system.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: April 20, 2021
    Assignee: Caterpillar SARL
    Inventors: Adam J. Adeeb, Steven Edward Johnson, Anthony Joseph Weltzer, Ernest Everett Stoops
  • Patent number: 10974564
    Abstract: A system for damping control for a vehicle includes a parameter component and a damping adjustment component. The parameter component is configured to determine one or more driving parameters of a vehicle. The one or more driving parameters include a velocity of the vehicle. The damping adjustment component is configured to adjust damping of suspension of the vehicle during driving based on the one or more driving parameters. The damping adjustment component is also configured to adjust damping of suspension at a zero velocity for a threshold time period in response to transitioning from a non-zero velocity to the zero velocity.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: April 13, 2021
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: David Michael Russell, Charles Gavin McGee, Ben Bulat, Russ Lee Norton, John Keller, Darrell Erick Butler
  • Patent number: 10960924
    Abstract: Vehicle systems are disclosed. A vehicle system includes one or more sensors, a steering wheel, an accelerator pedal, a steering wheel actuator, an accelerator pedal actuator, and a controller. The controller is communicatively coupled to the one or more sensors and the steering sensitivity adjusting unit. The controller includes at least one processor and at least one memory module storing computer readable and executable instructions that, when executed by the processor, cause the controller to detect an object based on output from the one or more sensors, and send to the steering sensitivity adjusting unit an instruction for adjusting a sensitivity of the steering wheel in response to detecting the object.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: March 30, 2021
    Assignee: TOYOTA RESEARCH INSTITUTE, INC.
    Inventors: Todd J. Rowell, Michael L. Elkins
  • Patent number: 10953918
    Abstract: Self-propelled vehicles that include swiveling caster wheels and independent drive wheels are disclosed. The self-propelled vehicles are selectively steered in a caster wheel steering mode or a drive wheel steering mode. The vehicle includes a differential system that may include a differential valve that allows hydraulic fluid to be transferred between the left and right drive systems. The differential system may be operable during the caster wheel steering mode such as when the vehicle is driven for transport between sites.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: March 23, 2021
    Assignee: Vermeer Manufacturing Company
    Inventors: Curt T. Graham, Nathan D. Dockter, Kent M. Recker, Gary J. Burns, Kent L. Thompson, Scott A. Rempe, Jeffrey T. Knapp
  • Patent number: 10933742
    Abstract: An alternative traction control system, in addition to a primary traction control system, is associated with an agricultural machine in which a user selectable input can allow wheels of an the agricultural machine to spin freely, such as for clearing debris from tires, until a predetermined deactivate condition occurs. Such a deactivate condition could comprise, for example, reaching a maximum rotation speed and/or temperature threshold with respect to a wheel. To minimize the risk of damage to propulsion components which may be caused by excessive rotation speeds and/or temperatures, upon reaching such a threshold, operation can return from the alternative traction control system to the primary traction control system. Such a system can therefore allow an “on the fly” change that would permit an operator to selectively spin the tires without damaging mechanical aspects of the agricultural machine.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: March 2, 2021
    Assignee: CNH Industrial America LLC
    Inventors: Roy Bittner, Nathan Brooks, Lawrence Borucki, Jr., Steven Winkel, Blaine Schwalbe
  • Patent number: 10926794
    Abstract: A vehicular behavior control apparatus in which a control unit that controls a driving device and a braking device is configured to calculate a target yaw moment and a target deceleration of the vehicle for ensuring stable behavior of the vehicle during non-braking turning, to calculate a first vehicle longitudinal force applied to a turning inner wheel to achieve the target yaw moment and a second vehicle longitudinal force necessary to achieve the target deceleration, to control, when the first vehicle longitudinal force is equal to or less than the second vehicle longitudinal force, the driving device so as to generate a driving force equal to a value obtained by subtracting the second vehicle longitudinal force from a driver-requested driving force and adding the first vehicle longitudinal force, and to apply the first vehicle longitudinal force to the turning inner wheel.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: February 23, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takemi Murayama, Hisanori Mitsumoto, Takuya Shoji, Noritsugu Iwazaki, Go Inoue
  • Patent number: 10919533
    Abstract: A vehicle control system and a control method thereof are disclosed. The vehicle control system according to an embodiment includes an inputter configured to receive a wheel speed of a vehicle; and a controller configured to determine a wheel spin based on the wheel speed, determine whether the vehicle passes over a pothole based on the tendency of the wheel spin, and cancel engine traction control entry for a time corresponding to the wheel speed when it is determined that the vehicle passes over the pothole.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: February 16, 2021
    Assignee: MANDO CORPORATION
    Inventor: Byoung Jin Park
  • Patent number: 10889299
    Abstract: This driving assist apparatus for a vehicle sets target wheel speed of an inside rear wheel in turning to substantially zero when a state of a center differential apparatus is a locked state in a case where the vehicle is turned in an extremely low speed traveling control. Further, the apparatus sets target wheel speed of each of wheels other than the inside rear wheel in turning such that a mean value of target wheel speeds of front wheels is equal to a mean value of target wheel speeds of rear wheels and the mean value of target wheel speeds of front wheels is equal to target vehicle body speed. Furthermore, the apparatus adjusts driving force and braking force such that wheel speed of each of the wheels becomes equal to the target wheel speed set for each of the wheels.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: January 12, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Taisuke Yasutomi
  • Patent number: 10889185
    Abstract: A drive switching mechanism of a utility vehicle includes: a two-wheel drive and four-wheel drive switching device that switches between two-wheel drive and four-wheel drive of the utility vehicle; and a control unit that controls the drive switching mechanism. The two-wheel drive and four-wheel drive switching device switches between two-wheel drive and four-wheel drive by using a first clutch. The control unit permits the two-wheel drive and four-wheel drive switching device to switch from two-wheel drive to four-wheel drive when a rotation difference of the first clutch becomes equal to or smaller than a predetermined value.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: January 12, 2021
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Seiji Itoo, Ayumi Hamada, Manabu Hidaka, Masahiko Nakagawa
  • Patent number: 10865730
    Abstract: A fuel supply system includes an injector, an air flow meter, and an engine controller. The engine controller includes a fuel supply amount setting unit, a fuel cut controller, a fuel supply amount correcting unit, and an injector controller. The fuel supply amount setting unit sets a fuel supply amount on the basis of an intake air amount. The fuel cut controller executes and ends a fuel cut. The fuel supply amount correcting unit increases, on the basis of a reverse air amount, the fuel supply amount after the fuel cut in at least one cylinder, with respect to a basic supply amount corresponding to the intake air amount. An amount of the increase is greater at an initial fuel supply than in fuel supply at a second time and onward. The injector controller outputs, to the injector, a signal corresponding to the increased fuel supply amount.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: December 15, 2020
    Assignee: SUBARU CORPORATION
    Inventors: Daiki Nishi, Shunsuke Ohsawa
  • Patent number: 10851720
    Abstract: An actuator is provided for driving a turbocharging pressure control valve of a turbocharger. The actuator comprises a motor, an output shaft and a speed reduction mechanism for transmitting rotation of the motor to the output shaft by reducing a rotation speed. The speed reduction mechanism includes at least one gear having a shaft hole, a support shaft inserted into the shaft hole and holding the gear rotatably, and wall portions provided at both ends of the support shaft in a manner sandwiching the gear. The speed reduction mechanism further includes a wear powder holding portion provided radially outside an outer periphery of the support shaft and in at least one of two end portions of the shaft hole and the wall portions in a manner to hold wear powder or foreign substance without scattering.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: December 1, 2020
    Assignee: DENSO CORPORATION
    Inventors: Naoaki Kono, Etsugo Yanagida, Masashi Yamaguchi, Tetsuji Yamanaka, Atsushi Tanaka, Kunio Namba
  • Patent number: 10807579
    Abstract: Apparatus and associated methods relate to controlling a brake mechanism during braking operation to provide near-maximal braking power. Maximal braking power occurs at when the wheel slip has a target value. Wheel slip can be monitored during braking operation so as to be used in control the brake mechanism to operate at the maximal braking power. The braking power is modulated so as to dither the braking power about a nominal braking power. The monitored wheel slip will have a dither component in response to the dithering of the braking power. A volatility of the dither component of the monitored wheel slip can be indicative of nominal braking power proximity to the maximal braking power. A nominal brake signal can be generated so as to change the nominal braking power in the direction of the maximal braking power based on the volatility of the dither component of the monitored wheel slip.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: October 20, 2020
    Assignee: Goodrich Corporation
    Inventor: Tyler Arsenault
  • Patent number: 10807634
    Abstract: An electric power steering control method includes: measuring an operation state of a vehicle and determining whether the operation state of the vehicle corresponds to a sudden start-up condition; measuring a steering operation state and determining whether the steering operation state corresponds to a torque steer compensation control condition; determining a compensation torque according to a speed difference between left and right front wheels when the sudden start-up condition and the torque steer compensation control condition are satisfied; and outputting a compensation torque signal to an electric power steering according to the determined compensation torque.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: October 20, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Kyung Lae Lee, Shen Guo
  • Patent number: 10793010
    Abstract: A control method for a motor-driven vehicle is provided. The method includes calculating a correction torque of a drive motor through a difference between speeds of wheels or a variance rate of the difference between speeds of the wheels and comparing a calculated correction torque with a current required torque of the drive motor. When the calculated correction torque is greater than the current required torque, the drive motor is operated based on the current required torque. When the calculated correction torque is less than or equal to the current required torque, the drive motor is operated based on the calculated correction torque, or the required torque of the drive motor is corrected to correspond to the calculated correction torque and the drive motor is operated based on a corrected required torque of the drive motor.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: October 6, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jae Won Jung, Kang Sik Jeon, Seung Yoon Lee, Sung Ho Yang, Jae Young Shim, Min Gon Kim
  • Patent number: 10793157
    Abstract: A vehicle includes a drivetrain and multiple motors. The drivetrain includes at least one wheel, and is mechanically connected to the motors. The vehicle additionally includes multiple control modules communicatively connected to the motors. The control modules include a power control module per motor. Each power control module is assigned a motor, communicatively connected to the assigned motor, and configured to operate the assigned motor. In response to a traction event, the control modules are configured to switch from a drive mode to a traction control mode. In the drive mode, the power control modules are configured to operate the respective assigned motors to contributorily satisfy at least one propulsion demand global to the vehicle. In the traction control mode, one of the control modules is configured to operate the motors to contributorily satisfy at least one propulsion demand global to the vehicle.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: October 6, 2020
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Sheldon Z. Brown, Giorgio L. Zoia, Takehito Yokoo
  • Patent number: 10796515
    Abstract: The present disclosure provides a vehicle control system. The vehicle control system includes a transceiver operating in a sub-GHz frequency band configured to transmit and receive data from a RKE user terminal of the vehicle, a set of TPMS sensors and at least one remote control terminal located outside the vehicle; and an ECU connected to the transceiver and configured to: perform lock or unlock and engine start functions in responding to data from the RKE user terminal, receive tire pressure data from the TPMS sensors and control the remote control terminal in responding to a user action.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: October 6, 2020
    Assignee: VALEO INTERIOR CONTROLS (SHENZHEN) CO., LTD
    Inventor: Stephane Schuler
  • Patent number: 10780887
    Abstract: A utility vehicle and a method of operating a utility vehicle having a rear axle driven by a drive engine, a rear axle differential on the rear axle, and a front axle that is configured to be switched on to perform four-wheel drive are provided. The method includes activating a differential lock for locking the rear axle differential on the basis of at least one of a rear axle slippage variable, which characterizes a drive slippage occurring at the rear axle, an engine power of the drive engine, a status of at least one brake device associated with the rear axle, and a status regarding the four-wheel drive.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: September 22, 2020
    Assignee: Deere & Company
    Inventors: Thomas Woopen, Florian Reinmuth
  • Patent number: 10780904
    Abstract: A method for controlling and recovering the adhesion, during a slipping phase, of wheels (Wi) belonging to at least two controlled axles (Ai) of a railway vehicle, comprising the steps of: generating speed signals indicative of the angular speed (?i) of said wheels (Wi); estimating the value of the instantaneous adhesion (?(Tj)) at the point of contact of such wheels (Wi) and the rails, using an adhesion observer; generating a target-slip value (?) for the wheels (Wi) of the controlled axles (Ai) by means of an optimization algorithm which processes the estimated adhesion values (?i(Tj)), and modifying the target-slip value continuously in time, with a predetermined sampling period, such as to maximize the average value of the adhesion of the wheels of the vehicle.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: September 22, 2020
    Assignee: FAIVELEY TRANSPORT ITALIA S.P.A.
    Inventor: Roberto Tione
  • Patent number: 10781891
    Abstract: A drive system or powertrain including an automatic transmission (AT) for an electric vehicle is provided. At least one 3-position linear motor, 2-way clutch (i.e. CMD) is included in the transmission. The transmission includes a planetary gear set. A magnetic coupling device such as an eddy current by-pass clutch is provided to magnetically transfer a portion of rotating mechanical energy of a single electric powerplant or motor to a transmission output shaft in response to an electrical signal to synchronize angular velocities of the transmission output shaft and an output shaft of the electric powerplant during a change in state of the at least one CMD. Torque is transferred to the transmission output shaft during the change in state. A park function is also provided.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: September 22, 2020
    Assignee: Means Industries, Inc.
    Inventors: John W. Kimes, Philip B. Woodley
  • Patent number: 10780779
    Abstract: A behavior control apparatus for a four-wheel drive vehicle comprising a driving unit, front and rear wheel driving torque transmission paths that transmit driving torques of the driving unit to front and rear wheels, respectively, and control unit. The rear wheel driving torque transmission path includes a speed increasing device for increasing speed of the rear wheels relative to the front wheels and two clutches for the left rear w heel and right rear wheel disposed between the speed, increasing device and the left rear wheel and the right rear wheel, respectively. The control unit engages the clutch on the turning inside when the vehicle is in oversteer state during turning under braking in a situation where the two clutches are disengaged.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: September 22, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Ryochi Watanabe
  • Patent number: 10766530
    Abstract: A system configured to be mounted to a vehicle including a skid-based steering system. The system including a control unit for determining course correction to the vehicle during operation based on a navigation path received from a remote device and data associated with the movement of the vehicle collected by the system.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: September 8, 2020
    Assignee: Robo Industries, Inc.
    Inventors: Liang Wang, Linli Zhang
  • Patent number: 10759433
    Abstract: A map, including potential obstacles, can be generated by a computing device in a vehicle. An estimated coefficient of friction between the vehicle wheels and a roadway surrounding a stuck vehicle can be generated based on sensor data. A path can be determined based on the map, and the stuck vehicle can be operated based on the path and a determined slip ratio based on the vehicle wheels to unstick the stuck vehicle.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: September 1, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: William Falconer, Zachary Konchan, Leonard Eber Carrier, Erick Michael Lavoie
  • Patent number: 10753459
    Abstract: A vehicle transmission braking mode comprises determining a set of available clutches of the plurality of clutches that are not being utilized for engagement of a particular forward gear of the plurality of forward gears, determining at least one of a modeled temperature, a measured temperature, and a modeled energy of each clutch of the set of available clutches to obtain a set of at least one of clutch temperatures and energies, and based on at least the set of available clutches and the set of at least one of clutch temperatures and energies, selectively operate the transmission in the transmission braking mode by at least partially applying at least one clutch of the set of available clutches to mitigate or prevent powerflow through the transmission and thereby decrease or maintain a speed of the vehicle and/or reduce acceleration of the vehicle.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: August 25, 2020
    Assignee: FCA US LLC
    Inventors: Brian J Jacobs, Joshua Haviland, Michael Sowards
  • Patent number: 10744868
    Abstract: A hybrid driveline assembly for a vehicle includes an engine, an electric motor, and a transmission having an input and an output. The transmission input is selectively coupled to the engine and electric motor. The transmission is shiftable between a plurality of drive modes. The driveline assembly further includes a final drive assembly operably coupled to the transmission output. The final drive assembly has a front final drive operably coupled to a rear final drive.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: August 18, 2020
    Assignee: Polaris Industries Inc.
    Inventors: Eric J. Borud, Christopher P. Matko, David F. Buehler, Paul D. Weiss, Benjamin M. Comana
  • Patent number: 10730495
    Abstract: The invention relates to an improved plunger assembly for a vehicle brake system. The plunger assembly is operable as a pressure source to control brake fluid pressure supplied to one or more wheel brakes. The plunger assembly comprises a housing defining a cylinder; a reversible motor supported by the housing and having a rotor; and a linear actuator such as a ball screw/nut mechanism driven by the motor. A plunger head is mounted in the cylinder and driven by the linear actuator in first and second opposite directions. Improvements include an elastomeric tubular torque coupler connected to a ball screw/nut anti-rotation member; and a clamped connection at an inner race of a motor bearing for securing the rotor to the ball screw/nut component.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: August 4, 2020
    Assignee: ZF Active Safety US Inc.
    Inventors: Blaise Ganzel, John Cassidy, William Caldwell