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: 11512652
    Abstract: An internal combustion engine system includes an internal combustion engine, a controller, and an increased brake load event communicator. The internal combustion engine includes a first cylinder and a first cylinder deactivation prevention mechanism. The first cylinder is configured to be selectively activated and deactivated. The first cylinder deactivation prevention mechanism is configured to selectively prevent the first cylinder from being deactivated. The controller is communicable with the first cylinder deactivation prevention mechanism. The controller includes an increased brake load event detection module that is configured to selectively control the first cylinder deactivation prevention mechanism to prevent the first cylinder from being deactivated. The increased brake load event communicator is communicable with the controller.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: November 29, 2022
    Assignee: Cummins Inc.
    Inventor: Jennifer Kay Light-Holets
  • Patent number: 11498550
    Abstract: A vehicle control device controls a driving device in such a manner that driving torque coincides with normal torque. The vehicle control device starts a traction control for controlling the driving device in such a manner that the driving torque coincides with suppressed torque which is smaller than the normal torque, when a predetermined traction control start condition is satisfied. The vehicle control device determines that the driver is in a non-grasp state, when an operation amount has changed to satisfy a condition in an initial determination time period. The vehicle control device starts, at an acceleration time point, an operation priority control for controlling the driving device in such a manner that the driving torque coincides with acceleration priority torque which is larger than the suppressed torque and smaller than the normal torque, if the control device had not determined that the driver was in the non-grasp state.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: November 15, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ryochi Watanabe
  • Patent number: 11492989
    Abstract: A method to control a road vehicle during a slip of the drive wheels, which are caused to rotate by an internal combustion engine provided with a plurality of cylinders arranged in two banks, and with a plurality of fuel injectors each injecting fuel into a corresponding cylinder. The control method comprises the steps of: detecting a slip of at least one drive wheel; and controlling the internal combustion engine, only during a slip of at least one drive wheel, with a signalling law, which causes the internal combustion engine to work in an abnormal manner so as to generate an abnormal vibration and/or an abnormal noise, which can be perceived by the driver. The internal combustion engine has two twin control units, each of which is associated with a corresponding bank, controls all and the sole injectors of its own bank and actuates the signalling law completely independently of and autonomously from the other control unit.
    Type: Grant
    Filed: February 1, 2022
    Date of Patent: November 8, 2022
    Assignee: FERRARI S.P.A.
    Inventor: Stefano Marconi
  • Patent number: 11491997
    Abstract: A sensor abnormality determination device of a four-wheel drive vehicle including a drive source, main drive wheels and sub-drive wheels, a power transmitting member, a first connecting/disconnecting device, a second connecting/disconnecting device, a first sensor, and a rotation sensor, the sensor abnormality determination device comprises a first sensor abnormality determining portion determining that the first sensor is abnormal when the rotation sensor detects the rotation of the power transmitting member and it is presumed that the four-wheel drive vehicle is in the four-wheel drive state, when the first sensor detects that the first connecting/disconnecting device is in the disconnecting state, and when the rotation sensor detects the rotation of the power transmitting member after the second connecting/disconnecting device is switched to the disconnecting state.
    Type: Grant
    Filed: November 27, 2020
    Date of Patent: November 8, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Shunro Fukada
  • Patent number: 11492103
    Abstract: A brake assembly may comprise a brake stack including a plurality of rotors and a plurality of stators. A piston assembly may be configured to apply a force to the brake stack. A brake control valve may be mounted to the piston assembly and fluidly coupled to a fluid inlet of the piston assembly.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: November 8, 2022
    Assignee: Goodrich Corporation
    Inventor: Tyler Arsenault
  • Patent number: 11488467
    Abstract: An object detection, tracking and alert system for use in connection with a waste collection vehicle is provided. The system can determine if an external moving object in the surrounding environment of the waste collection vehicle, such as another vehicle or a bicycle, is moving directly towards the waste collection vehicle, and then send one or more alerts to the driver and/or riders on the waste collection vehicle as well as any other waste collection vehicles in the surrounding area.
    Type: Grant
    Filed: September 1, 2021
    Date of Patent: November 1, 2022
    Assignee: WM INTELLECTUAL PROPERTY HOLDINGS, L.L.C.
    Inventor: Vu Nguyen
  • Patent number: 11479231
    Abstract: A device for controlling an electronic four-wheel drive (E-4WD) of a vehicle includes: a first powertrain for a front wheel, where the first powertrain includes an engine, and a front wheel motor; and a second powertrain for a rear wheel, where the second powertrain includes a rear wheel motor. The device provides a rear wheel motor driving mode, a front wheel motor driving mode, a combined driving mode in which the front wheel motor and the rear wheel motor are both driven, and an engine-on mode according to driver power demand for the vehicle, such that fuel efficiency of the vehicle is improved.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: October 25, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Jee Wook Huh
  • Patent number: 11467617
    Abstract: A cable-linked brake pedal assembly for an airplane. The assembly includes a first cable assembly with a first end attached to a pilot-side brake pedal and a second end attached to a first bell crank assembly, and a second cable assembly with a first end attached to a copilot-side brake pedal and a second end attached to a second bell crank assembly. A first connecting rod with a first rod end is attached to the first bell crank assembly and a second rod end is attached to the second bell crank assembly. The connection between the first and second cable assemblies, first and second bell crank assemblies, and first connecting rod is configured such that depressing the pilot-side brake pedal moves the first cable assembly, first connecting rod, and second cable assembly in such a way as to cause a corresponding depression of the copilot-side brake pedal.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: October 11, 2022
    Assignee: Woodward, Inc.
    Inventors: Jeffrey T. Voiles, Roy Romana, Steven E. Rickenbrode
  • Patent number: 11458940
    Abstract: A brake ECU sets target slippage degrees of three wheels other than the front outer wheel to the slippage degree of the front outer wheel and feedback-controls the braking forces of the three wheels such that the actual slippage degrees of the three wheels approach the target slippage degrees. The brake ECU computes a correction amount for the slip ratio deviation of the front inner wheel such that the slip ratio deviation becomes zero. The brake ECU multiplies the correction amount for the slip ratio deviation by a load ratio and uses the resultant value as a correction amount for the slip ratio deviation of the rear inner wheel. The brake ECU corrects the slip ratio deviation by using the computed correction amount.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: October 4, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, ADVICS CO., LTD.
    Inventors: Masahiro Hara, Hiroaki Nagase, Kei Amamoto
  • Patent number: 11441677
    Abstract: The invention relates to a control arrangement for vehicles having a hydrostatic auxiliary drive for one or more axles, in particular for motor graders, having a drive engine, driven rear wheels coupled to the drive engine, further wheels which can be activated by associated hydraulic motors and can be operated by a hydraulic pump coupled to the drive engine and which has an adjustable feed volume, wherein each wheel is connected to a hydraulic motor without a clutch. The hydraulic pump and the hydraulic motors can be activated electrically and adjusted in a continuously variable fashion and the hydraulic pump is connected directly, without valves, to the hydraulic motors in parallel by hydraulic lines. The control device controls the respective displacement volume of the hydraulic motors only as a function of the rotational speed signals of the sensors.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: September 13, 2022
    Assignee: CNH BAUMASCHINEN GMBH
    Inventors: Jürgen Weber, Erik Lautner, Thomas Neubert
  • Patent number: 11427167
    Abstract: A method for performing emergency braking in a vehicle includes registering at least one object in surroundings of the vehicle and ascertaining a probability of collision for the vehicle with the at least one registered object to detect an emergency braking situation, autonomously activating service brakes of the vehicle using a vehicle setpoint deceleration to perform emergency braking if an emergency braking situation has been detected, and adapting the vehicle setpoint deceleration during the autonomously performed emergency braking. Adapting the vehicle setpoint deceleration takes place in dependence on at least one driving dynamics parameter. The driving dynamics parameter characterizes a real reaction of the vehicle to the performed emergency braking. The driving dynamics parameter is ascertained during the emergency braking.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: August 30, 2022
    Assignee: ZF CV SYSTEMS EUROPE BV
    Inventors: Karsten Breuer, Ruediger Meyer
  • Patent number: 11409278
    Abstract: The present disclosure is directed to systems and techniques for providing a teleoperation instruction to an autonomous vehicle. While the autonomous vehicle is travelling to a destination, the autonomous vehicle may encounter a situation preventing the autonomous vehicle from travelling to the destination. A control center may receive information from the autonomous device and provide instructions with limited controls for the autonomous vehicle to navigate to an intermediate position. In such an intermediate position, the may make way for an emergency vehicle, obtain additional sensor data for continued autonomous planning, signal intent to other objects in the environment, and the like.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: August 9, 2022
    Assignee: Zoox, Inc.
    Inventors: Ravi Gogna, Meredith James Goldman
  • Patent number: 11401876
    Abstract: A control system for a vehicle is provided, which includes a driving force source configured to generate torque for driving drive wheels, a steering angle related value sensor configured to detect a steering angle related value of a steering device of the vehicle, a grille shutter configured to adjust an opening-and-closing degree of an opening formed in a front surface of a vehicle body, and a controller configured to control the torque to control a vehicle attitude based on the steering angle related value. Based on the steering angle related value, when the controller determines that a turning operation of the steering device is performed, it performs a torque decreasing control for reducing the torque to add deceleration to the vehicle, and when the grille shutter opening is large, the controller increases the torque reduction amount in the torque decreasing control more than when the opening is small.
    Type: Grant
    Filed: February 10, 2022
    Date of Patent: August 2, 2022
    Assignee: Mazda Motor Corporation
    Inventors: Daisaku Ogawa, Daisuke Umetsu
  • Patent number: 11383727
    Abstract: Methods, apparatuses, and computer-readable media are described. In one example, a method of controlling a vehicle comprises: receiving, using one or more sensors, a first set of measurements of a set of physical attributes of the vehicle in a motion; determining, based on a motion data model that defines a set of relationships among the set of physical attributes of the vehicle in the motion and based on the first set of measurements, a set of expected measurements of the set of physical attributes; determining whether to use an entirety of the first set of measurements to control an operation of the vehicle based on comparing the first set of measurements and the set of expected measurements; and responsive to determining not to use the entirety of the first set of measurements, controlling the operation of the vehicle based on a second set of measurements.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: July 12, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Urs Niesen, Jubin Jose, Xinzhou Wu
  • Patent number: 11380194
    Abstract: To control vehicular congestion at intersections, a method includes detecting a group of two or more vehicles stopped at an intersection regulated by a traffic light, where for each of the vehicles in the group, movement through the intersection in response to a change in a state of the traffic light is affected by movement of at least one other vehicle in the group. The method further includes determining a time when the state of the traffic light changes to allow the group of vehicles to start moving through the intersection, determining acceleration parameters for a certain vehicle in the group in view of potential and/or actual movement of the other vehicles in the group through the intersection, and providing guidance to a device operated by a driver of the certain vehicle regarding the determined acceleration parameters, in accordance with the determined time.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: July 5, 2022
    Assignee: GOOGLE LLC
    Inventors: Cliff Chin Ngai Sze, Catherine Cardinal
  • Patent number: 11370307
    Abstract: A method for controlling an electric motor is described herein. The method includes setting a current limit, a speed limit and a torque limit. The method also includes sensing a DC link current, comparing the sensed DC link current with the current limit and adjusting the torque limit based on the comparison with the current limit to provide an adjusted torque limit. The method also includes sensing the speed of the electric motor, comparing the speed with the speed limit and further adjusting the adjusted torque limit based on the comparison with the speed limit.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: June 28, 2022
    Assignee: Borg Warner Gateshead Limited
    Inventors: Richard Hellinga, Jason Wiseman, Howard Slater, Chris Pearce
  • Patent number: 11333209
    Abstract: Methods and systems for a differential assembly are provided herein. In one example, a method is provided that includes operating a clutch motor coupled to a differential locking clutch to place the differential locking clutch in a locked configuration. The method further includes, after the differential locking clutch is placed in the locked configuration, reducing electric power delivered to the clutch motor at a first rate and increasing the electric power delivered to the clutch motor when it is determined that clutch disengagement is occurring based on outputs from a motor position sensor or outputs from shaft speed sensors coupled to a pair of shafts coupled to the differential locking clutch.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: May 17, 2022
    Assignee: Dana Heavy Vehicle Systems Group, LLC
    Inventor: Perry M. Paielli
  • Patent number: 11312381
    Abstract: A four-wheel drive force distribution apparatus for distributing drive forces to the wheels of a four-wheel drive vehicle, in which the distribution of drive force to the front inside wheel (2a) and the distribution of drive force to the rear inside wheel (3a) are adjusted based on a ground load of the front inside wheel (2a) and a ground load of the rear inside wheel (3a) when the vehicle is turning, and the distribution of drive force to the front inside wheel (2a) compared with distribution of drive force to the rear inside wheel (3a) is reduced the smaller the ratio of the ground load of the front inside wheel (2a) to the ground load of the rear inside wheel (3a) during turning.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: April 26, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hisanori Mitsumoto, Tomohiko Niwa
  • Patent number: 11305795
    Abstract: A method for assessing contamination of a rail, in particular for a railway vehicle, comprises the steps of imposing a first sliding value lower than a first threshold between the wheels of a first controlled axle and the rail, the first controlled axle being the head axle of the railway vehicle, imposing a second sliding value greater than a second threshold between the wheels of a second controlled axle and the rail, the second axle following the first axle and the second threshold being greater than the first threshold, and determining the trend of an adhesion curve between the wheels belonging to a plurality of controlled axles and the rail, based on a first adhesion value between the wheels of the first axle and the rail, and a second adhesion value between the wheels of the second axle and the rail.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: April 19, 2022
    Assignee: FAIVELEY TRANSPORT ITALIA S.P.A.
    Inventors: Matteo Frea, Luc Imbert
  • Patent number: 11279239
    Abstract: A power generation amount of a power generator disposed on a vehicle is appropriately controlled by ordering the power generator a required power generation amount so as to control the power generator, driving a drive motor configured to drive a driving wheel of the vehicle using at least part of electric power generated by the power generator according to the required power generation amount, storing at least part of surplus power left in the electric power generated by the power generator in a storage device, detecting a slip of the driving wheel, and, executing reduction processing of a power generation amount for further reducing a required power generation amount that reflects a reduction amount of the electric power for driving the drive motor due to the slip of the driving wheel, if the detected extent of the slip is larger than a predetermined threshold.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: March 22, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takao Watanabe, Junichi Matsuo
  • Patent number: 11273815
    Abstract: A braking system for a vehicle, which includes a control system configured to: actuate a pressure generation device in accordance with a braking request signal to generate the brake pressure; ascertain an operational state of the pressure generation device; ascertain a position of a displacement piston of a brake master cylinder based on the braking request signal; and couple a pressure modulation device to a brake master cylinder volume and actuate the device so that the pressure modulation device conveys brake fluid out of the brake master cylinder volume into the wheel brake circuit, if the operational status of the pressure generation device is ascertained to be nonoperational and the displacement piston is in the idle position.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: March 15, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Herbert Vollert, Jonathan Schnur, Markus Weigel
  • Patent number: 11273826
    Abstract: A vehicle control system including: a driving operator on which an operation used for manual driving is performed by a vehicle occupant; an output device that outputs information; an automated driving controller that executes automated driving automatically controlling at least one of acceleration/deceleration and steering of a vehicle; and a switching controller that causes the output device to output request information for requesting an operation on the driving operator when automated driving using the automated driving controller ends and is switched to manual driving and sets a control gain for the operation performed on the driving operator to be lower in at least a predetermined period after causing the output device to output the request information to than in a period other than the predetermined period.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: March 15, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Tatsuya Iwasa
  • Patent number: 11267345
    Abstract: Provided is a control apparatus, a control method, and a control system for an electric vehicle that can prevent or reduce an unnecessary torque fluctuation on a wheel not targeted for slip control. A control apparatus for an electric vehicle limits a torque to be output to a non-target wheel according to a torque output to a target wheel after target wheel slip control is started, and updates a limit value of the torque to be output to the non-target wheel when a fluctuation range of the torque output to the target wheel falls within a predetermined range during the limitation.
    Type: Grant
    Filed: September 4, 2017
    Date of Patent: March 8, 2022
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Satoshi Kaneko, Keisuke Suzuki
  • Patent number: 11254351
    Abstract: Technical features of a steering system include a control module that dynamically determines an operating mode based on a set of input signal values such as lateral acceleration signal values and corresponding handwheel position values. The control module dynamically determines and learns classification boundaries between multiple operating modes based the input signal values. The control module further calibrates the steering system according to operating mode that is determined using the classification boundaries.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: February 22, 2022
    Assignee: Steering Solutions IP Holding Corporation
    Inventors: Zaki Ryne, Rakesh Mitra, Tao Yang, Scott T. Sanford, Michael R. Story
  • Patent number: 11256928
    Abstract: An information providing apparatus, for a vehicle, includes a skill level determining unit, a driving load determining unit, and an information provision controller. The skill level determining unit is configured to determine a driving skill level of a driver of the vehicle when the vehicle is traveling. The driving load determining unit is configured to determine a driving load on the driver. The information provision controller is configured to control provision of information to the driver on the basis of the driving skill level and the driving load.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: February 22, 2022
    Assignee: SUBARU CORPORATION
    Inventors: Noeru Sato, Takeshi Torii, Ryuichi Sumikawa, Akiko Sugiyama
  • Patent number: 11254207
    Abstract: A method of determining clutch torque for a limited slip differential gear mechanism on a vehicle includes obtaining an estimated driveline torque. A desired bias torque is established. A necessary clutch torque required to achieve the desired bias torque is determined. The necessary clutch torque is commanded based on the estimated driveline torque to achieve the desired bias torque.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: February 22, 2022
    Assignee: Eaton Intelligent Power Limited
    Inventors: Andrew N. Edler, John A. Grogg
  • Patent number: 11230196
    Abstract: Embodiments of the invention are directed toward a geared traction drive system configured to drive a wheel of a vehicle, comprising: a driveshaft for transmitting power to the wheel; an electric drive motor for driving the driveshaft, the electric drive motor configured to receive signals from a vehicle dynamic control system to command a required speed; a gear reduction component for reducing the speed of the motor by a predetermined factor to a lower speed suitable for driving the wheel; and a drive electronics component that works with the electric drive motor to drive the wheel to the speed commanded by the vehicle dynamic control system.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: January 25, 2022
    Assignee: Wrightspeed, Inc.
    Inventors: Ian Wright, Ryan Cash
  • Patent number: 11230294
    Abstract: Disclosed is a system for estimating the speed of a vehicle. The system includes a plurality of wheel rotation sensors, a grade sensor, an acceleration sensor, an accelerator pedal deflection sensor, a brake pedal deflection sensor, and a processor. The processor is configured to compute a linear wheel speed, an upper limit of vehicle speed, and a lower limit of vehicle speed, based on the grade information, the pedal deflection information, and the acceleration, and then compute an estimated speed of the vehicle based on the linear wheel speed, the upper limit of vehicle speed, and the lower limit of vehicle speed.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: January 25, 2022
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Laura E. Bower, Rebecca L. Kemph
  • Patent number: 11225238
    Abstract: A vehicle includes a power source configured to provide drive torque, a front axle, a rear axle, and a transfer case configured to distribute drive torque from the power source between the front axle and the rear axle. The vehicle additionally includes a clutch arranged between the front axle and the transfer case. The clutch has a disengaged state and an engaged state drivingly coupling the transfer case and the front axle. The vehicle also includes a regenerative braking system configured to, in response to a braking request, provide regenerative braking torque to the rear axle. The vehicle further includes a controller. The controller is configured to, in response to a braking request and the clutch being in the disengaged state, control the clutch to shift into the engaged state to couple the regenerative braking system to the front axle and provide regenerative braking torque to the front axle.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: January 18, 2022
    Assignee: Ford Global Technologies, LLC
    Inventors: Scott J. Lauffer, Ashok E. Rodrigues, Dale Scott Crombez, Andreas E. Perakes, Filip Tomik, Kevin Kootsillas, Michael Paul Lindlbauer
  • Patent number: 11186272
    Abstract: A control method for an electronic limited slip differential of a vehicle includes: determining by a controller, whether the vehicle is in an understeer state or an oversteer state when the vehicle is turning; and performing driving force movement control by the controller. In particular, when the vehicle is in the understeer state and an actual driving force of an inner wheel of the vehicle is greater than an allowable driving force of inner wheel, the controller increases the control torque of the electronic limited slip differential and transfers the inner wheel driving force to the outer wheel of the vehicle.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: November 30, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Seunghoon Woo, Min Chan Jung, Jong Hun Song, Sang Suk Yang, Seong Yun Jang
  • 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: 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: 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: 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: 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: 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: 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: 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: 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: 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