Feedback, Transfer Function Or Proportional And Derivative (p& D) Control Patents (Class 701/42)
  • Patent number: 11588427
    Abstract: A motor drive device includes an inverter output unit that drives a motor using electrical power supplied from a supply power generation unit, a voltage detection unit that detects a voltage value of a DC voltage, a current detection unit, a current limiting resistor and a current change-over switch connected in parallel between a bus and the voltage detection unit, and a motor drive control unit that controls the inverter output unit based on the voltage value and controls turning on and off of the current change-over switch based on the current value. The motor drive control unit turns on the current change-over switch when the motor is to be driven, and turns off the current change-over switch when the current value changes only by an amount less than a first threshold in a first time period during driving of the motor.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: February 21, 2023
    Assignee: Mitsubishi Electric Corporation
    Inventor: Yoshihito Ono
  • Patent number: 11577780
    Abstract: Provided are a lane separation line detection correcting device/method and an automatic driving system for stabilizing the behavior of a vehicle by correcting overestimated curvature information resulting from an erroneous detection of a curvature of a lane separation line. A travel speed detecting circuit detects, for example, a target travel speed as vehicle sensor information. A maximum curvature estimating circuit estimates, based on the target travel speed, a maximum curvature of a road along which an own vehicle is traveling. A curvature correcting circuit corrects a curvature of a lane separation line input thereto based on the maximum curvature. A control unit controls steering of the own vehicle based on the lane separation line having a corrected curvature. As a result, vehicle steering can be automatically controlled so as to prevent the own vehicle while traveling from departing from a driving lane.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: February 14, 2023
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takuya Taniguchi, Noritaka Kokido, Koji Iida
  • Patent number: 11572095
    Abstract: Technical solutions described herein include a method of controlling, in an electric power steering system, a steering angle according to a target steering angle by computing an initial value of an integral control term in a proportional integral derivative (PID) control loop used to calculate a control output signal, such as a motor torque command. The initial value of the integral control term is computed as a negative of the initial value of the feedforward term minus the initial value of the feedback term. The initial value of the integral control term corresponds to an initial value of a control output. Accordingly, the technical solutions described herein facilitate handling non-zero initial condition in Electric Power Steering angle control.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: February 7, 2023
    Assignee: Steering Solutions IP Holding Corporation
    Inventors: Xingye Zhang, Anthony Champagne
  • Patent number: 11548548
    Abstract: A method for controlling an electrically powered steering assistance system including an electric motor for providing assisting torque to an axle of a vehicle such that impact between a wheel and the wheel housing can be prevented. Electrically powered steering assist systems include an electric motor for providing an assist steering torque to the steerable wheels of the vehicle. The electrical current used by the electric motor has a typical dependence with the amount of output torque from the motor. The electrical current of the electrical current used by the electric motor exhibits distinguishable characteristics when the wheels reach the end stop in the wheel housing. By monitoring the electrical current used by the electric motor for providing the assisting torque it is possible to determine that the wheels have reached the end-stop.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: January 10, 2023
    Assignee: Volvo Car Corporation
    Inventors: Henrik Johansson, Carl-Johan Hall
  • Patent number: 11505243
    Abstract: A steering control device includes: an electric motor configured to apply an assist force to steering of a steering wheel; a torque sensor configured to detect steering torque of the steering wheel; a base target current setting unit configured to set a base driving force of the electric motor on the basis of the steering torque detected by the torque sensor; and an addition determination unit configured to determine whether a driving force larger than the base driving force is to be set, on the basis of a rotation speed of the electric motor.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: November 22, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Kosuke Sano, Junya Hirata
  • Patent number: 11498556
    Abstract: A side collision risk estimation system for a vehicle comprises a speed sensor, a road line markers detector, a movement sensor, an object detector, and a controller. The controller is configured to estimate: the current speed of the vehicle, a heading of the adjacent road line ahead of the vehicle, a heading of the vehicle, a compensated heading of the vehicle, a predicted lateral change position of the vehicle, a heading of a target vehicle relative to the vehicle, the current speed of the target vehicle, the current lateral distance between the vehicles, the heading of the adjacent road line ahead of the target vehicle, a compensated relative heading of the target vehicle, a predicted lateral change position of the target vehicle, a predicted lateral distance over time between the vehicles, and a side collision risk over time from the predicted lateral distance between the vehicles.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: November 15, 2022
    Assignee: APTIV TECHNOLOGIES LIMITED
    Inventor: John Patrik Wallin
  • Patent number: 11492041
    Abstract: Technical solutions described herein include a method of controlling, in an electric power steering system, a steering angle according to a target steering angle by computing an initial value of an integral control term in a proportional integral derivative (PID) control loop used to calculate a control output signal, such as a motor torque command. The initial value of the integral control term is computed as a negative of the initial value of the feedforward term minus the initial value of the feedback term. The initial value of the integral control term corresponds to an initial value of a control output. Accordingly, the technical solutions described herein facilitate handling non-zero initial condition in Electric Power Steering angle control.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: November 8, 2022
    Assignee: Steering Solutions IP Holding Corporation
    Inventors: Xingye Zhang, Anthony Champagne
  • Patent number: 11485411
    Abstract: A controller for a steering device includes an electronic control unit configured to control the steering device. The electronic control unit is configured to acquire an action force and to calculate a basic reaction force based on the acquired action force. The action force includes at least two of axial forces of a plurality of types and a tire force. The axial forces of a plurality of types are applied to a turning shaft that is connected to turning wheels. The tire force is applied to the turning wheels. The electronic control unit is configured to, when one predetermined force of the acquired action force is abnormal, calculate the basic reaction force such that a contribution proportion of the predetermined force to the basic reaction force is lower than a contribution proportion when the predetermined force is not abnormal.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: November 1, 2022
    Assignee: JTEKT CORPORATION
    Inventor: Takashi Kodera
  • Patent number: 11479126
    Abstract: A system for compensating acceleration of electrical motorbike includes a throttle unit and an electro-mechanic assembly. After the electrical motorbike starts, the throttle unit receives external operation from a rider for generating a series of original throttle signal. An acceleration compensating module calculates a throttle variation rate based on the original throttle signal and variation of a throttle operation magnitude, and calculates a throttle compensating value based on the throttle variation rate when the throttle variation rate is larger than or equal to a correction threshold. A throttle compensating module receives and sums the original throttle signal and the throttle compensating value up for generating a new throttle signal. A torque controller generates a corresponding torque command based on the new throttle signal, and outputs the torque command to the electro-mechanic assembly for operation.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: October 25, 2022
    Assignees: DELTA ELECTRONICS, INC., KWANG YANG MOTOR CO., LTD.
    Inventors: Chien-Ping Huang, Chung-An Hsieh, Hsiang-Hsi Huang, Cheng-Hsien Huang
  • Patent number: 11472470
    Abstract: Assist torque or reaction force torque with little unnatural feeling to a driver is applied. An ECU includes: a control amount calculation section that calculates a control amount for controlling magnitude of the assist torque or the reaction force torque with reference to steering torque applied to a steering member; and a control amount correction section that corrects the control amount calculated by the control amount calculation section with reference to a lateral G of a vehicle body, a steering angle of the steering member, and a steering angle speed of the steering member.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: October 18, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Ken Isshiki, Eishi Ishimaru, Kyouichi Tagami, Nobuyuki Enomoto
  • Patent number: 11465679
    Abstract: A method for detecting the presence of a driver's hands on the steering wheel of a motor vehicle is described. By means of a mathematical model, at least one part of a steering system of the motor vehicle is modeled. In addition, a rotational angle of a lower end and/or an upper end of a torsion bar of the steering system is determined. A torque acting on the torsion bar is determined by means of a measuring device and a total torque acting on the steering wheel and a rotational angle acceleration of the steering wheel are estimated by means of a Kalman Filter.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: October 11, 2022
    Assignee: ZF Automation Germany GmbH
    Inventors: Emad Farshizadeh, Arno Luengen
  • Patent number: 11447126
    Abstract: Described herein is a system and method for preemptive chassis control intervention for an autonomous vehicle having a mechanical system and a chassis controller. The chassis controller is configured to output a consumption signal that represents a percentage of an activation threshold consumed by an operation monitored by the chassis controller, wherein the chassis controller is activated to manipulate the mechanical system when the activation threshold is reached. A computing system of the autonomous vehicle receives the consumption signal output by the chassis controller to determine a path plan for the autonomous vehicle based upon the percentage of the activation threshold consumed by the operation monitored by the chassis controller. The computing system further controls the mechanical system to execute the path plan to preempt activation of the chassis controller.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: September 20, 2022
    Assignee: GM CRUISE HOLDINGS LLC
    Inventor: Kevin Danford
  • Patent number: 11443520
    Abstract: The present technology relates to an image processing apparatus, an image processing method, and an image processing system enabling the presentation of more useful information. An image in a viewpoint direction corresponding to the state of an object is generated from a captured image. Alternatively, an image of the periphery of the object is captured at a wide angle, and then an image obtained by projecting a part of the wide-angle captured image thus obtained onto a plane in a viewpoint direction corresponding to the state of the object is displayed. For example, an image of the periphery of an object is captured at a wide angle, an image in a viewpoint direction corresponding to the state of the object is generated from the obtained captured image, and the generated image is displayed.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: September 13, 2022
    Assignee: SONY CORPORATION
    Inventor: Nobuhiro Tsunashima
  • Patent number: 11400940
    Abstract: Real-time wind data for a location is determined based on a detected movement of an object relative to a vehicle. The real-time wind data includes a wind speed and a wind direction. Upon receiving stored wind data for the location from a remote computer, a crosswind risk is determined based on the real-time wind data and the stored wind data. A vehicle component is actuated to compensate for the crosswind risk.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: August 2, 2022
    Assignee: Ford Global Technologies, LLC
    Inventors: Cynthia M. Neubecker, Mark Gehrke, Jonathan Diedrich, David Hiskens
  • Patent number: 11383759
    Abstract: A manual steering command value generation unit generates a manual steering command value, using a steering torque. A summed angle command value calculation unit calculates a summed angle command value, by adding the manual steering command value to an automatic steering command value. A control unit performs angle control of an electric motor, based on the summed angle command value. The control unit includes a basic torque command value calculation unit that calculates a basic torque command value, a disturbance torque estimation unit that estimates a disturbance torque other than a motor torque of the electric motor applied to an object driven by the electric motor, and a disturbance torque compensation unit that corrects the basic torque command value, based on the disturbance torque. The manual steering command value generation unit uses an estimated torque calculated based on the disturbance torque, when generating the manual steering command value.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: July 12, 2022
    Assignee: JTEKT CORPORATION
    Inventor: Naoki Shoji
  • Patent number: 11383813
    Abstract: An automatic steering device may include a route calculator, an indirect target point calculating module, a command steering angle calculating module, and a steering controlling module. The route calculator may calculate a route of a ship based on positions of a plurality of target points. The indirect target point calculating module may calculate an indirect target point ahead of the ship. The command steering angle calculating module may calculate a command steering angle based on a positional relation between the route and the indirect target point. The steering controlling module may control a steering mechanism of the ship based on the command steering angle.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: July 12, 2022
    Assignee: FURUNO ELECTRIC COMPANY LIMITED
    Inventors: Kazuya Kishimoto, Kazutoshi Simo
  • Patent number: 11377149
    Abstract: A vehicle control system includes: a turning device that turns a wheel of a vehicle; a steering sensor that detects a driver's steering operation; and a control device configured to execute automated turning control that controls the turning device to automatically turn the wheel, independently of the driver's steering operation. A modification desire degree represents a degree to which the driver's steering operation modifies vehicle travel caused by the automated turning control. During execution of the automated turning control, the control device calculates the modification desire degree based on a result of detection by the steering sensor. When the modification desire degree exceeds a threshold, the control device executes system suppression processing without terminating the automated turning control. In the system suppression processing, the control device weakens the automated turning control as compared to a case where the modification desire degree is equal to or lower than the threshold.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: July 5, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaya Sato, Yoji Kunihiro, Yoshinori Watanabe, Shunsuke Tanimori, Hisaya Akatsuka
  • Patent number: 11370477
    Abstract: A calculator or an electronic control unit (ECU) calculates an instruction value of a column assist torque and a rack assist torque output from a column actuator, or a column motor, and a rack actuator, or a rack motor, based at least on a torsion torque. The calculator includes a base assist controller, a stabilization controller, and an adder. The base assist controller individually or commonly calculates a base assist torque based on the torsion torque. The stabilization controller individually or commonly calculates a stabilization torque for stabilizing a steering system. The adder performs addition of the base assist torque and the stabilization torque.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: June 28, 2022
    Assignees: DENSO CORPORATION, NAGOYA INSTITUTE OF TECHNOLOGY
    Inventors: Shuji Kuramitsu, Hiroyasu Otake, Ryo Kano, Yoshifumi Morita, Hironao Watanabe, Takayuki Kato
  • Patent number: 11364948
    Abstract: There is provided an electric power steering device, including: a reverse steering detection unit configured to determine start of reverse steering when a magnitude of a rotational speed of a motor is equal to or smaller than a set speed, a rotational acceleration of the motor is in a direction of causing the rotational speed of the motor to become 0, and a magnitude of the rotational acceleration of the motor is equal to or larger than a set acceleration; and a current command control unit configured to output a current command for the motor based on the steering torque or the rotational speed of the motor, in which the current command control unit is configured to increase a transfer gain from input to output by the current command control unit when the reverse steering detection unit determines start of the reverse steering.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: June 21, 2022
    Assignee: Mitsubishi Electric Cornoration
    Inventors: Isao Kezobo, Kenta Tanaka, Akira Furukawa, Masaharu Tanaka, Akiyoshi Takashima
  • Patent number: 11358671
    Abstract: A leaning vehicle includes a caliper and an electric motor supported at a same position in a vehicle body frame.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: June 14, 2022
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Yu Shibuya
  • Patent number: 11359922
    Abstract: A method for scanning a location, including the following features: an ego velocity is measured at predefined points in time, and a counter is incremented as a function of the ego velocity, and as soon as the counter reaches a predefined threshold value, the location is determined.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: June 14, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Andreas Westendorf, Sanghmitra Gupta, Dominik Brunner
  • Patent number: 11352054
    Abstract: A method of controlling a steer-by-wire steering system for motor vehicles is disclosed for the calculation of a resulting self-aligning torque of a feedback actuator in a manner which is dependent on an operating state (hands-on/hands-off). The method includes determining of a base self-aligning torque for a first operating state, in which there is hand contact by a driver on a steering wheel, determining a hands-off self-aligning torque for a second operating state, in which there is no hand contact by the driver on the steering wheel, determining a self-aligning speed of the steering wheel for the first operating state and for the second operating state, and determining the resulting self-aligning torque on the basis of the base self-aligning torque or the hands-off self-aligning torque, as a result of which the steering wheel rotates at the defined self-aligning speed into the defined position.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: June 7, 2022
    Assignees: thyssenkrupp Presta AG, thyssenkrupp AG
    Inventors: Kristof Polmans, Manuel Rohrmoser
  • Patent number: 11338682
    Abstract: Embodiments relate to an apparatus for recommending a cluster user interface (UI) design using a distribution of design elements including an eye position detection unit to detect an eye position of a driver from an image captured through a camera in a vehicle, a visible area determination unit to determine a visible area in a cluster based on the detected eye position, a position of the cluster in the vehicle and a position of a steering wheel, a cluster UI design search unit to search for a cluster UI design related to a shape of the determined visible area in a database, and a cluster management unit to recommend the found cluster UI designs to the driver and apply a cluster UI design selected by the driver from the recommended cluster UI designs to the cluster in the vehicle.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: May 24, 2022
    Assignee: YELLOWKNIFE INC.
    Inventor: Han Sung Lee
  • Patent number: 11318936
    Abstract: A method for controlling the lateral movement of a terrestrial vehicle arranged to track a predetermined trajectory, particularly in an assisted driving or autonomous driving scenario, comprising: determining a lateral offset of the vehicle center of mass from the predetermined trajectory; determining a look-ahead error defined as a distance of a virtual look-ahead position of the vehicle center of mass from the predetermined trajectory; and controlling the steering angle of the vehicle so as to also minimize the lateral offset and the first derivative of said look-ahead error over time.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: May 3, 2022
    Assignee: Magneti Marelli S.p.A.
    Inventors: Michele Giorelli, Matteo Corno, Federico Roselli, Sergio Matteo Savaresi
  • Patent number: 11318937
    Abstract: A driver assistance system (DAS) configured to determine a lane provided with a radar reflector includes a radar configured to emit radio wave in front of the vehicle and obtain radar data by receiving reflected wave reflected from an object in front of the vehicle; a controller configured to determine whether the object is the radar reflector based on the magnitude of energy of the reflected wave included in the obtained radar data, and to determine a line connecting the determined radar reflector as a lane. It is an object of the present invention to provide a driver assistance system and a driver assistance method capable of obtaining lane information based on a radar track.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: May 3, 2022
    Assignee: Mando Mobility Solutions Corporation
    Inventor: Kwang Hwan Oh
  • Patent number: 11305811
    Abstract: Technical solutions for compensating for lash in a steering system are described. An example method includes determining a rack pressure value based on a driver torque value and a differential pressure across a rack of the steering system. The method also includes determining a compensation friction value based on a position of a handwheel of the steering system and a speed of a vehicle equipped with the steering system. The method also includes computing a pressure value based on the rack pressure value and the compensation friction value. The method also includes generating a torque command using the pressure value, the torque command being added to the driver assist torque for the steering system.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: April 19, 2022
    Assignee: Steering Solutions IP Holding Corporation
    Inventor: Joel E. Birsching
  • Patent number: 11292520
    Abstract: A method for providing an intervening action for a host vehicle. A target is detected in the vicinity of the vehicle it is determined that the host vehicle is travelling on a collision course with the target. When a collision with the target is predicted to occur within a predetermined time period and no driver initiated steering action for avoiding the collision course has been detected, controlling a steering control system to provide an initial steering torque action to the steerable wheels of the host vehicle for providing an initial steering action towards the same side of the target as a detected safe side. A driver initiated steering action is in response to the initial steering torque action is detected. Next, the intervening action is provided for altering the present driving course of the host vehicle for avoiding a collision with the target.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: April 5, 2022
    Assignee: Volvo Car Corporation
    Inventors: Mats Jonasson, Derong Yang
  • Patent number: 11292441
    Abstract: An ECU operating as a vehicle control device, to be mounted on a truck tractor, has a hauling determination part and an automatic driving control part. The truck tractor is hauling/pulling a trailer. The hauling determination part detects whether the trailer is hauled by the truck tractor. The automatic driving control part switches an automatic driving mode between a first automatic driving mode and a second automatic driving mode on the basis of a detection result of the hauling determination part. The first automatic driving mode represents a situation in which the truck tractor is not hauling/pulling the trailer. The second automatic driving mode represents a situation in which the truck tractor is hauling/pulling the trailer.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: April 5, 2022
    Assignee: DENSO CORPORATION
    Inventors: Mitsuharu Higashitani, Noriaki Ikemoto, Tomomi Hase
  • Patent number: 11285973
    Abstract: An apparatus may include a driving information input unit for receiving driving information generated while a vehicle travels, a steering angle location control unit for receiving a command steering angle for autonomous driving and a current motor steering angle of a driving motor and outputting an autonomous driving command through location control, and a motor-driven power steering control unit for driving the driving motor based on the autonomous driving command in an autonomous driving mode, determining whether a driver intervenes in steering, based on the driving information during the autonomous driving, computing a driver command according to the driver' steering based on a result of the determination, computing a compensation output between the autonomous driving command and the driver command by applying a weighting according to a steering angular speed, and making a mode transition from the autonomous driving mode to a driver mode while driving the driving motor.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: March 29, 2022
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventor: Tae Hong Kim
  • Patent number: 11273864
    Abstract: A driving assistance control device outputs a driving assistance command value to a steering control device as information indicating a target course that is generated on the basis of the detection result of a vehicle-mounted sensor. The driving assistance command value is output as a torque component or an angle component depending on the design of the driving assistance control device. In response, processing in which a driving assistance command value input from the exterior of the steering control device is used as input for angle control processing or input for torque control processing within an assist command value calculation unit is performed by a microcomputer as assistance command value input processing by an assistance command value input processing unit.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: March 15, 2022
    Assignee: JTEKT CORPORATION
    Inventors: Shigeto Matsuo, Terutaka Tamaizumi, Akihiko Nishimura
  • Patent number: 11267467
    Abstract: The present invention relates to a method for controlling vehicle lane holding for a vehicle with an electric power assisted steering by means of a steering system (100) with a steering assistance actuator and one or more controllable vehicle state actuators comprising measurement of at least one vehicle position input signal with using an on-board vision system for determination of a relative vehicle lane position in the form of a lateral lane position, a heading angle and a lane curvature, transformation of the relative vehicle lane position to a target yaw and/or lateral vehicle state, measuring at least one steering input signal, determination from said one or more measured steering input signals a torque value applied by the driver via a steering wheel (120), transformation of said torque value to a relative to the afore-mentioned target yaw and/or lateral vehicle state a driver target relative yaw and/or lateral vehicle state, adding said target yaw and/or lateral vehicle state and said driver target re
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: March 8, 2022
    Assignee: SENTIENT IP AB
    Inventors: Johan Hultén, Jochen Pohl, Ulf Löfqvist, Björn Eriksson, Henrik Weiefors
  • Patent number: 11247719
    Abstract: A control method of a motor driven power steering (MDPS) for a vehicle may include determining a steering angle of a steering wheel of the vehicle; determining a steering torque variation rate of the vehicle; counting an exceeding number of times that the steering torque variation rate exceeds a predetermined value to store the counted number of times in an MDPS system; and deleting the number of times stored in the MDPS system when the exceeding number of times is less than a predetermined number of times, and applying a reverse phase compensation torque to a steering motor when the exceeding number of times is equal to or larger than the predetermined number of times.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: February 15, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Sung-Il Lee
  • Patent number: 11231718
    Abstract: An autonomous skid-steer machine includes a chassis, a plurality of ground engaging elements supporting the chassis on a ground surface and one or more computing devices for controlling movement of the machine. The one or more computing devices are configured to generate a control signal for controlling operation of at least some of the plurality of ground engaging elements, the control signal being generated according to a control algorithm incorporating tuning parameters, and to automatically determine the tuning parameters in real time during operation of the machine such that the control algorithm is always optimized for a current speed of the machine. The tuning parameters are found using the machine's current speed, a natural frequency value and a damping value.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: January 25, 2022
    Assignee: AGCO International GmbH
    Inventor: Benjamin Fernando Fernandez Guzmann
  • Patent number: 11228268
    Abstract: An electric motor controlling system used for vibration suppression of an electric vehicle is disclosed. The controlling system includes a PID-controller and a vibration suppression compensator. The PID-controller generates a basic torque command through performing a calculation based on input speed-error signal of the electric vehicle, the vibration suppression compensator generates a compensated torque command through performing a compensation gain procedure on the input speed-error signal. The vibration suppression compensator further receives a motor speed of the electric vehicle, sets its output as the compensated torque command when the motor speed is smaller than a preset active speed level, otherwise sets the output as 0. The controlling system generates an output torque command via adding up the basic torque command and the output of the vibration suppression compensator, and operates electric motor components of the electric vehicle according to the output torque command.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: January 18, 2022
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Chun-Chia Tsao, Chien-Ping Huang
  • Patent number: 11220289
    Abstract: A method for operating a transportation vehicle having a control unit for electrically actuating an electromechanical coupling unit of a steering system of the transportation vehicle, wherein the control unit actuates the coupling unit according to a steering wheel characteristic curve which forms a ratio between a wheel lock angle of wheels of the transportation vehicle and a steering wheel rotational angle which is assumed by a steering wheel of the transportation vehicle, wherein a normal steering wheel characteristic curve is made available as a standard setting of the steering wheel characteristic curve in the control unit.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: January 11, 2022
    Inventors: Jana Seeland, Christian Hopp
  • Patent number: 11214302
    Abstract: Methods of controlling a feedback torque actuator in a steering system that includes the feedback torque actuator and an assistance actuator incorporate, for feedback torque control, generating at least one input signal with a sensor, determining a steering angle from the input signal, transforming the steering angle to a target steering-wheel torque, and controlling the feedback torque actuator via a closed loop current control to achieve the target steering-wheel torque. The assistance actuator has a high gain, thereby resulting in a low torque in the axle above the assistance actuator such that the steering-wheel torque is close to the target steering-wheel torque, whereby acceptable steering feel is achieved.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: January 4, 2022
    Assignee: SENTIENT IP AB
    Inventor: Henrik Weiefors
  • Patent number: 11208144
    Abstract: A vehicle behavior stabilization system includes a yaw moment applying device configured to apply a yaw moment to the vehicle, a vehicle behavior stabilization control unit configured to selectively control the yaw moment applying device in such a way to stabilize a vehicle behavior according to a computed rear wheel slip angle in relation to a start threshold value and an end threshold value, and a threshold value correcting unit configured to correct the start threshold value and the end threshold value according to a change rate of the computed rear wheel slip angle and/or a change rate of a computed vehicle body slip angle.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: December 28, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Hitoshi Sasaki, Masahiro Hirota, Takeshi Kojima, Naoto Okubo
  • Patent number: 11205080
    Abstract: A method of assisting a driver in maneuvering a vehicle with a trailer hitched to the vehicle includes equipping a vehicle with a trailering assist system that includes (i) a camera disposed at the vehicle and viewing a trailer that is hitched the vehicle and (ii) a control having an image processor. During a reversing maneuver of the vehicle and trailer, image data is captured by the camera and vehicle parameters are provided to the control. Responsive to the vehicle parameters and processing of captured image data, the trailering assist system estimates an estimated trailer angle and an estimated vehicle steering wheel angle. The estimated vehicle steering wheel angle and an actual steering wheel angle are compared to determine a steering wheel angle error. The estimated trailer angle is modified in subsequent determinations of the estimated trailer angle based at least in part on the determined steering wheel angle error.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: December 21, 2021
    Assignee: MAGNA ELECTRONICS INC.
    Inventor: Devendra Bajpai
  • Patent number: 11186293
    Abstract: A method, system, and computer program product is provided for assisting a driver of the vehicle or providing guidance based on one or more geo-fences. The method comprises displaying one or more geo-fences super-imposed on a map display for a vehicle, wherein the one or more geo-fences comprises a tolerance zone; identifying a driving maneuver profile for the vehicle associated with the one or more geo-fences, and displaying the driving maneuver profile on the map display, wherein displaying the driving maneuver profile comprises: displaying a distance of the vehicle from the tolerance zone, and displaying a prohibited maneuver for the vehicle based on the one or more geo-fences and the distance of the vehicle from the tolerance zone.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: November 30, 2021
    Assignee: HERE GLOBAL B.V.
    Inventors: Roland Gardner, Chris Dougherty, Gregg Bresnahan
  • Patent number: 11186310
    Abstract: According to the technical solutions described herein, an example method for frequency tracking based friction detection includes receiving, by a filter module, an accelerometer signal from an accelerometer coupled with an assist torque system. The method further includes estimating, by the filter module, harmonic content in the accelerometer signal based on an order frequency of the assist torque system. The method further includes in response to the harmonic content that is detected being greater than or equal to a predetermined threshold, initiating a friction estimation in the assist torque system. The method further includes adjusting an amount of torque being generated by the assist torque system based on an estimated friction in the assist torque system.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: November 30, 2021
    Assignee: Steering Solutions IP Holding Corporation
    Inventors: Bhuvanesh Sainath, Rangarajan Ramanujam, Anthony Champagne
  • Patent number: 11180187
    Abstract: A manual steering command value generation unit generates a manual steering command value using steering torque. An integrated angle command value computation unit computes an integrated angle command value by adding the manual steering command value to an automatic steering command value. A control unit performs angle control on an electric motor on the basis of the integrated angle command value. The control unit includes: a basic torque command value computation unit that computes a basic torque command value on the basis of the integrated angle command value; a disturbance torque estimation unit that estimates disturbance torque other than motor torque that is generated by the electric motor and acts on an object to be driven by the electric motor; and a disturbance torque compensation unit that corrects the basic torque command value in accordance with the disturbance torque.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: November 23, 2021
    Assignee: JTEKT CORPORATION
    Inventors: Naoki Shoji, Robert Fuchs, Tsutomu Tamura, Mitsuko Yoshida
  • Patent number: 11181915
    Abstract: Apparatuses and methods for maneuvering marine vessel are disclosed. In an embodiment, the apparatus is configured to: receive a location command defining a future geographic location; receive an orientation command defining an orientation in the future geographic location; and generate required control data for a steering and propulsion system of the marine vessel based on the future geographic location and the orientation. In another embodiment, the apparatus is configured to: receive control data of a current power and angle of the steering and propulsion system; receive control data of a reference power and angle of the steering and propulsion system; and display simultaneously a current representation of the current power and angle, and a reference representation of the reference power and angle, wherein the current representation and the reference representation are both arranged and positioned co-centrically in relation to a representation of the marine vessel.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: November 23, 2021
    Assignee: ABB Schweiz AG
    Inventors: Santeri Vanhakartano, Pauli Hemmilä
  • Patent number: 11173838
    Abstract: An apparatus includes a plurality of capture devices and a processor. The plurality of capture devices may each be configured to generate video frames corresponding to an area outside of a vehicle. The processor may be configured to receive the video frames from each of the plurality of capture devices, generate video data for a display in response to the video frames, store a view preference for the display corresponding to (i) a location and (ii) a vehicle status, determine a current location and a current status of the vehicle and generate an output signal to select a view for the display. The output signal may be generated in response to the current location matching the location and the current status matching the vehicle status. The view selected may be determined based on the view preference.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: November 16, 2021
    Assignee: Ambarella International LP
    Inventor: Alberto Broggi
  • Patent number: 11176827
    Abstract: Extendable blind spot sensors and methods of use are provided herein, which may include a blind spot sensor configured to monitor a blind spot of a vehicle and an extender in mechanical communication with the blind spot sensor. The extender is configured to move the blind spot sensor between a first position and a second position when a trailer is attached to the vehicle.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: November 16, 2021
    Assignee: Ford Global Technologies, LLC
    Inventor: Steven Schondorf
  • Patent number: 11156515
    Abstract: A turning mechanism of a vehicle turns a wheel and is coupled to a steering wheel through a steering shaft. A torque sensor detects a torque applied to a first position of the steering shaft, as a sensor-detected torque. An upper friction torque is an absolute value of the sensor-detected torque that is caused by a friction force acting on the steering shaft between the first position and the steering wheel when the steering shaft is rotated. A vehicle control system repeatedly estimates the upper friction torque and variably sets a determination threshold to the estimated upper friction torque or more. The vehicle control system determines whether a driver state is a hands-on state or a hands-off state based on a comparison between the absolute value of the sensor-detected torque and the determination threshold.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: October 26, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takahiro Kojo, Yoji Kunihiro, Ryo Irie, Hisaya Akatsuka
  • Patent number: 11110956
    Abstract: According to one or more embodiments a control system for a steering system, includes a control module that estimates a tire load by performing a method that includes receiving, as an input torque, motor-torque that is generated by a motor of the steering system. The method further includes computing an efficiency factor for a gear of the steering system based on the input torque and a motor velocity. The method further includes adjusting the input torque by scaling the input torque with the efficiency factor. The method further includes estimating the tire load using the adjusted input torque as an input to a state observer for the steering system.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: September 7, 2021
    Assignee: Steering Solutions IP Holding Corporation
    Inventors: Mariam Swetha George, Tejas M. Varunjikar
  • Patent number: 11110916
    Abstract: Disclosed herein are an impact-absorbing apparatus and method for a vehicle, which are applied to an automatic emergency brake (AEB) system of a vehicle. The impact-absorbing apparatus includes a path generation unit configured to generate an own vehicle travel path of an own vehicle, based on a speed and travel direction of the own vehicle, and a preceding vehicle travel path of a preceding vehicle, based on a speed and travel direction of the preceding vehicle, and a collision determination unit configured to determine whether or not the own vehicle collides with the preceding vehicle, based on the own vehicle travel path and the preceding vehicle travel path, wherein when it is impossible to avoid the collision between the own vehicle and the preceding vehicle, the path generation unit generates a new travel path by comparing the own vehicle travel path with the preceding vehicle travel path.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: September 7, 2021
    Assignee: MANDO CORPORATION
    Inventors: Seung Bum Park, Man Bok Park
  • Patent number: 11052920
    Abstract: A system and method for mitigating unintended operation of a vehicle is described herein. The system and method analyze data and/or signals received from sensors to determine when the vehicle is experiencing changes the in the vehicle's direction, dynamic state and/or status. The analysis may be applied to data and/or signals from one or more sensors alone or in combination. Analysis of the data and/or signals may determine that one or more criterion are met and therefore the vehicle may be an identified state. When the vehicle is in an identified state, the system and method may disable, deaden or otherwise modify the response to one or more controls in order to mitigate unintended operation.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: July 6, 2021
    Assignee: BlackBerry Limited
    Inventor: Christopher Hutten-Czapski
  • Patent number: 11046361
    Abstract: An assisting force control device 1 includes a torque detection unit that detects the steering torque of a vehicle, a calculation unit that, after the torque detection unit has detected a steering torque of at least a prescribed size, integrates the steering torque to calculate an integrated torque amount, and an assisting force control unit that reduces the steering assisting force to a value that is smaller than a prescribed value in a direction in which the vehicle is prevented from deviating from a lane, such reduction carried out if the integrated torque amount calculated by the calculation unit becomes at least an integration threshold value corresponding to a traveling condition of the vehicle.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: June 29, 2021
    Assignee: ISUZU MOTORS LIMITED
    Inventor: Teruhiko Suzuki
  • Patent number: 11036223
    Abstract: According to one aspect, systems and techniques for driving mode control may include a steering wheel, a sensor, a display, and a controller. The steering wheel may have a button coupled thereto. The button may have a depressed state. When the button is in the depressed state, the steering wheel may be movable between a first position and a second position. The sensor may detect whether the steering wheel is in the first position or the second position. The display may display a display content. The controller may set the display content for the display or a driving mode of a vehicle, such as an autonomous driving mode or a manual driving mode, based on the detected position of the steering wheel.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: June 15, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Michael M. Tsay