Transmission Control Patents (Class 701/51)
  • Patent number: 11926210
    Abstract: A paddle shifter includes a pair of operation portions that decrease or increase the deceleration, the shift characteristic of the vehicle is set to a fixed shift mode based on the operation of the driver in response to an operation of one operation portion, a shift characteristic of the vehicle is set to a fixed shift mode based on the operation of the driver in response to an operation of the one operation portion, the shift characteristic of the vehicle is set to an automatic shift mode based on a running condition of the vehicle in response to an operation of the other operation portion, and when the one operation portion of the pair of operation portions remains in an ON state for a predetermined period of time, a change in the shift characteristic of the vehicle based on the other operation portion is activated.
    Type: Grant
    Filed: June 30, 2023
    Date of Patent: March 12, 2024
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Noriaki Suzuki, Kazuya Sakurai, Tetsuya Suko
  • Patent number: 11919532
    Abstract: A system for comparing driver intent and a gear setting of a vehicle comprises a driver monitoring system including at least one driver monitoring sensor configured to capture attributes of the driver indicative of driver intent regarding an intended direction of travel. The system also comprises an evaluation processor configured to access driver data from the driver monitoring system. The evaluation processor is also configured to generate a mismatch signal in response to determining a mismatch between the driver intent and a gear setting of the vehicle. The evaluation processor may also be configured to control braking and/or acceleration of the vehicle in response to determining a mismatch between the driver intent and a gear setting of the vehicle. The system may also use data regarding an object within a threshold distance from a front or a rear of the vehicle, and/or a requested acceleration above a threshold amount.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: March 5, 2024
    Assignee: Arriver Software LLC
    Inventors: Jacob Pusheck, Joshua Forwerck, Kristie Hargreaves
  • Patent number: 11875939
    Abstract: A method for controlling a part movable with a coil. In this case, a current flowing through the coil and/or a voltage applied to the coil is/are scanned in order to generate a coil signal. In a further step, at least one movement parameter representing an oscillatory movement of the part is ascertained by using the coil signal. Finally, at least one signal parameter of a dither signal is optionally changed to generate the oscillatory movement by comparing the movement parameter to the at least one setpoint value to adapt the oscillatory movement to the setpoint value.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: January 16, 2024
    Assignee: ROBERT BOSCH GMBH
    Inventors: Christof Ott, Daniel Seiler-Thull, Michael Hilsch, Tobias Mauk, Torsten Berger
  • Patent number: 11859708
    Abstract: Methods and systems are provided for adjusting a lubrication system based on an axle configuration of a tandem axle with a disconnect feature. In one example, a method may include adjusting an oil level in an axle sump of a tandem axle based on an axle configuration of the tandem axle (e.g., whether the tandem axle is operating with one of a 6×4 axle configuration and a 6×2 axle configuration), the axle sump selectably coupled to an external reservoir via a first passage and a second passage, the first passage including an electric pump, the second passage including a valve, and the tandem axle coupled to a drivetrain of a motor vehicle. In this way, an amount of oil in the axle sump may be adjusted based on the tandem axle configuration.
    Type: Grant
    Filed: January 27, 2023
    Date of Patent: January 2, 2024
    Inventors: Lucas A. Balistreri, Shane T. Smith
  • Patent number: 11841077
    Abstract: A motor vehicle has a control element for selecting a vehicle operating mode from a plurality of defined vehicle operating modes. Furthermore, the motor vehicle has at least one drive motor and an electronically controllable, automated transmission, which is operable in at least one automatic program and in at least one manual program. The motor vehicle also has an electric control arrangement and at least one button for triggering a changeover from an automatic program to a manual program. The electronic control arrangement is configured such that, upon activation of the button for triggering a manual program for a predefined minimum duration by the driver, an operating mode, which is not selectable via the control element based on dynamics, independent of the activation of the control element, is automatically activatable and displayable on the display instead of a selectable operating mode.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: December 12, 2023
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Joerg Bartels, Johannes Elflein, Stefan Erschen, Fabian Herbst, Michael Marks, Christian Molitor, Jens Adrian Roeth
  • Patent number: 11840248
    Abstract: A method for operating a powertrain of an autonomous vehicle is described. In one example, the autonomous driver may supply a torque request and a torque or power urgency assessment to a powertrain controller. The powertrain controller may monitor vehicle control system parameters based on the driver demand torque and the torque or power urgency assessment.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: December 12, 2023
    Assignee: Ford Global Technologies, LLC
    Inventors: Scott Steadmon Thompson, Robert Roy Jentz, David Hancock
  • Patent number: 11834072
    Abstract: A driving assist apparatus executes an autonomous braking control when a predetermined autonomous stop condition becomes satisfied, executes a stopped state keeping control to keep the own vehicle stopped after stopping the own vehicle by the autonomous braking control, and terminates executing the stopped state keeping control when a predetermined stopped state keeping termination condition becomes satisfied while executing the stopped state keeping control. The driving assist apparatus executes a driving force limitation control to limit a driving force generated to move the own vehicle to a value smaller than the driving force which depends on an amount of operating the acceleration pedal when determining that the predetermined stopped state keeping termination condition is satisfied, and a mistaken pressing operation occurs. The mistaken pressing operation is an operation performed by a driver to mistakenly press an acceleration pedal with an intention to press a brake pedal.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: December 5, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuto Shimbo, Yuma Hoshikawa, Toshifumi Kawasaki, Ryota Murakami
  • Patent number: 11808211
    Abstract: An aircraft power system includes an auxiliary power unit (APU), a transmission unit, and a generator. The APU is configured to output a first APU rotational power in response to determining a first condition and a second APU rotational power in response to a determining a second condition. The transmission unit is configured to receive the first APU rotational output power from the APU. The transmission unit outputs a transmission rotational power based on the first APU rotational output power and outputs the transmission rotational power based on the second APU rotational output power. The generator receives the transmission rotational power and produces an alternating current (AC) voltage having a target frequency based on the transmission rotational power.
    Type: Grant
    Filed: April 8, 2022
    Date of Patent: November 7, 2023
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Jonathan C. Dell, David S. Behling, Glenn C. Lemmers, Jr.
  • Patent number: 11760439
    Abstract: Bicycle including a frame with a fork, the fork having dropouts between which a wheel axle is mounted. The wheel axle includes a sensor and/or an electric component arranged to be connected to a control element. A detachable electric connection is provided between the sensor and/or electric component and the control element. The detachable electric connection includes a short range wireless connection.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: September 19, 2023
    Assignee: ADVANCING TECHNOLOGIES B.V.
    Inventors: Roëll Marie Van Druten, Johannes Gijsbertus Antonius Van Den Brand
  • Patent number: 11745738
    Abstract: A method of controlling a propulsion system inverter includes identifying at least one route characteristic of a portion of a route being traversed by a vehicle. The method further includes Receiving at least one inverter characteristic. The method further includes generating a target thermal profile of the propulsion system inverter corresponding to thermal fatigue associated with the at least one thermal characteristic. The method further includes generating a signal to selectively instruct the adjustment of at least one of the vehicle speed control input, a torque demand corresponding to the vehicle speed control input, and the portion of the route based on the target thermal profile of the propulsion system inverter to improve inverter life.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: September 5, 2023
    Assignee: DELPHI TECHNOLOGIES IP LIMITED
    Inventor: Gregory T. Roth
  • Patent number: 11719327
    Abstract: The present disclosure periodically monitors an oil condition through a temperature sensor installed in a driving motor of an in-wheel-type running gear, the generated torque of the driving motor, or the like and transmits oil condition information to a driver through a vehicle warning light.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: August 8, 2023
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventors: Hae Jun Yang, Yeo Jeong Kim
  • Patent number: 11686383
    Abstract: The present disclosure periodically monitors an oil condition through a temperature sensor installed in a driving motor of an in-wheel-type running gear, the generated torque of the driving motor, or the like and transmits oil condition information to a driver through a vehicle warning light.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: June 27, 2023
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventors: Hae Jun Yang, Yeo Jeong Kim
  • Patent number: 11680613
    Abstract: A method for adapting a biting point pressure of a hydraulically actuated hybrid disengaging clutch arranged in a hybrid drive train of a motor vehicle between an internal combustion engine and an electric machine includes step by step implementation during driving of the motor vehicle via a plurality of selected engagement operations of the hybrid disengaging clutch with a manipulation of a rapid filling routine. Proceeding from an initially stored biting point pressure, a setting pressure, which is reduced relative to a subsequent rapid filling routine, is incrementally increased step by step. An actual value, which is set in each case for a test parameter, is detected until the actual value corresponds to a setpoint value. A change in the transmission of torque of the hybrid disengaging clutch is derivable via the actual value.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: June 20, 2023
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Lukas Spath, Robert Weissenrieder, Markus Terwart, Moghtader Salehan
  • Patent number: 11627574
    Abstract: Aspects of the disclosure relate to downlink (DL) transmissions using various powers and assigning frequency resources based on the powers. An example base station may transmit, to a first user equipment (UE), an indication of a first transmit (Tx) power for a first DL transmission on a first downlink (DL) resource on a carrier, the first DL resource being at a first frequency. The first DL resource may be at a first frequency. The first Tx power may have a power level configured based on a difference between the first frequency for the first DL resource and an uplink (UL) frequency region of the carrier. Then, the base station may transmit the first DL transmission using the first frequency and the first Tx power. Other aspects, embodiments, and features are also claimed and described.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: April 11, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Ahmed Attia Abotabl, Muhammad Sayed Khairy Abdelghaffar, Shimman Arvind Patel, Wanshi Chen, Huilin Xu, Hwan Joon Kwon, Krishna Kiran Mukkavilli, Tingfang Ji
  • Patent number: 11625959
    Abstract: A system and method for determining backlash in a driving system of a vehicle are provided. The system includes a motor speed sensor that detects a motor speed and a wheel speed sensor that detects a wheel speed. A speed difference determination unit receives the detected motor and wheel speeds and determines a rotational speed difference of the driving system. A torsion speed determination unit receives the determined rotational speed difference and determines a reference torsion speed for backlash determination of the driving system. A backlash determination unit receives the determined rotational speed difference and the determined reference torsion speed, determines a backlash speed corresponding to a difference between the rotational speed difference and the reference torsion speed, and determines whether backlash in the driving system occurs using the determined backlash speed.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: April 11, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Ji Won Oh, Jeong Soo Eo
  • Patent number: 11614161
    Abstract: A method for determining reference values of a sensor corresponding to a disengaged operating condition or to an engaged operating condition of a hydraulically actuatable, form-locking shift element (A, F), where at least one operating parameter of the form-locking shift element (A, F) is detected with the sensor during a disengagement and during an engagement of the form-locking shift element (A, F). The method may include subdividing an operating range of the shift form-locking element (A, F) into temperature and pressure classes. The method may further include determining a deviation between a current reference value for a temperature and pressure class of the temperature and pressure classes and an adapted reference value previously determined for the temperature and pressure class. Additionally, the method may include increasing or decreasing the adapted reference value by a predefined increment based on the deviation.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: March 28, 2023
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Christian Pannek, Martina Jehle
  • Patent number: 11584478
    Abstract: A control device includes an electronic controller configured to automatically control a transmission device of a human-powered vehicle in accordance with a shifting condition. The electronic controller is configured to set the shifting condition based on first reference information including information related to change in transmission ratio that is shifted by the transmission device.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: February 21, 2023
    Assignee: Shimano Inc.
    Inventor: Satoshi Shahana
  • Patent number: 11565766
    Abstract: An operating device is basically provided with a base, a first operating member, a second operating member and an electric operating unit. The base is configured to mount the operating device to a handlebar. The base defines a mounting axis. The first operating member is pivotally arranged with respect to the base around a pivot axis. The second operating member is pivotally arranged with respect to the base around the pivot axis. The second operating member is a separate member from the first operating member. The electric operating unit is configured to be activated in response to a pivotal movement of the first operating member. The first operating member is arranged closer to the mounting axis than the electric operating unit.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: January 31, 2023
    Assignee: Shimano Inc.
    Inventor: Kentaro Kosaka
  • Patent number: 11518397
    Abstract: When a driver is not in pedal erroneous operation inducing situation and a rate of change in an operation amount of an accelerator pedal is equal to or greater than a first erroneous operation determination threshold value, a driving assistance apparatus determines that operation of the accelerator pedal is erroneous operation. When the driver is in the pedal erroneous operation inducing situation and the rate of change in the operation amount of the accelerator pedal is equal to or greater than a second erroneous operation determination threshold value, the riving assistance apparatus determines that the operation of the accelerator pedal is the erroneous operation, and the second erroneous operation determination threshold value is smaller than the first erroneous operation determination threshold value.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: December 6, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kohei Tochigi, Yuta Ikezawa, Shogo Ito
  • Patent number: 11512775
    Abstract: A shift range control device includes: multiple controllers that communicate with each other and control driving of a motor. The multiple controllers share control information, and include a first controller and a second controller. When the control information of the first controller is different from the control information of the second controller, one of the first controller and the second controller is set as a continuation controller, and a different one of the first controller and the second controller is set as a stop controller. The stop controller stops the drive control. The continuation controller performs the drive control of the motor.
    Type: Grant
    Filed: May 6, 2020
    Date of Patent: November 29, 2022
    Assignee: DENSO CORPORATION
    Inventor: Kouji Sakaguchi
  • Patent number: 11505015
    Abstract: A system for determining a tire pressure status in a vehicle is provided. The system includes at least one processing device, which may be arranged to: estimate values of a set of predetermined vehicle parameters; calculate a tire pressure parameter as a predetermined function of the values of the set of predetermined vehicle parameters, wherein said predetermined function has been generated by training a machine learning system, such as, for example, a neural network or a Support Vector Machine, using values of a large number of sets of predetermined vehicle parameters and associated tire pressure parameters; and determine a tire pressure status, indicating whether or not there is tire under-inflation, by comparing said tire pressure parameter with a threshold.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: November 22, 2022
    Assignee: Nira Dynamics AB
    Inventor: Rickard Karlsson
  • Patent number: 11454301
    Abstract: A driveline assembly for a recreational vehicle may include an engine and an automated sequential transmission.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: September 27, 2022
    Assignee: Polaris Industries Inc.
    Inventors: David A. Galsworthy, Gary A. Pinkley, Adrien Lechat, Zacharey J. Hussong
  • Patent number: 11428175
    Abstract: Systems and methods are provided for controlling a power plant during use of a power take-off (PTO) device, wherein the responsiveness and stability of the controller are adjustable by an operator in the field. The use of setting maps allows fine tuning of controller responsiveness while also ensuring that expected performance would be achieved at any setting within the setting map. In some embodiments, a proportional-integral-derivative (PID) controller is used to control engine speed, and gains for the proportional, integral, and derivative terms are obtained from setting maps based on a responsiveness setting chosen by a vehicle operator.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: August 30, 2022
    Assignee: PACCAR Inc.
    Inventors: Burton Edwin Waite, III, James David Castner, Charles Wayne Reinhardt Swart
  • Patent number: 11407402
    Abstract: A driving torque command generating apparatus and method of operating a hybrid electric vehicle can obtain torsional state observation values using an engine speed, a motor speed, and a wheel speed detected by an engine speed detector, a motor speed detector, and a wheel speed detector, respectively, together with a motor torque command generated in a previous period, and generate an engine torque command and a motor torque command of a driving torque command based on a driving input value input by a driving input detector and the torsional state observation values.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: August 9, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Ji Won Oh, Young Joon Chang, Jeong Soo Eo, Youn Kwang Jung, Sung Jae Kim
  • Patent number: 11400946
    Abstract: A method for managing a powertrain (3) of a motor vehicle (1) comprises the following steps: (a) determining a predictive rolling resistance coefficient (Crr) for at least one tyre (10) of the motor vehicle (1); and (b) adapting the operation of the powertrain (3) according to the predictive rolling resistance coefficient (Crr) in order notably to optimize the energy consumption of the motor vehicle (1).
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: August 2, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Francois-Jacques Cordonnier, Frederic Domprobst
  • Patent number: 11378029
    Abstract: Disclosed is a method for synchronizing an engine including a camshaft and a position sensor for sensing the position of the camshaft. The method includes, for each detected tooth edge: computing a time signature of the detected edge; comparing the time signature of the detected edge with a set of theoretical signatures of edges of the target including a theoretical signature for each edge of the target, the comparison being implemented through a tolerance; and generating a synchronization or synchronization fault signal as a function of the result of the comparison. When the engine speed drops below a predetermined threshold, the tolerance adopted for comparing the time signature of a detected edge with the theoretical signature of an edge of the target is reduced in relation to the tolerance adopted for the same comparison before the engine speed drops below the threshold.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: July 5, 2022
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventors: Camille Denert, Benjamin Marconato, Nora-Marie Gouzenes
  • Patent number: 11339555
    Abstract: A process for determining a setpoint rotational speed of a work machine engine, having a continuously variable transmission, based on operation of power hydraulics. The setpoint rotational speed for highly productive operation is determined, without knowledge current operation of the power hydraulics, by a basic engine speed setting. With knowledge of the current operating state, the setpoint rotational speed is determined by the basic speed settings and low or high engine speed settings. The low speed setting alone determines setpoint rotational speeds that are lower than the basic speed setting or a combination of the low and basic speed settings. The high speed setting alone determines setpoint rotational speeds that are higher than the basic speed setting or a combination of the basic and high speed settings. The speed settings can comprise a setpoint rotational speed range of above a reciprocal transmission range of the variable transmission.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: May 24, 2022
    Assignee: ZF Friedrichshafen AG
    Inventors: Jan-Frederik Kuhn, Stefan Traub, Stephan Schinacher, Marcus Hiemer, Robert Morrison, Jürgen Legner, Sven Bieber
  • Patent number: 11303620
    Abstract: The present disclosure relates to a realtime urban traffic status monitoring method based on privacy-preserving compressive sensing, including the following steps: step S1: dividing vehicle data under privacy preserving into two parts, and sending the two parts to two different road side units (RSU) for preprocessing; step S2: outsourcing, by the two different RSUs, preprocessed vehicle data to two cloud platforms (CP) respectively, and designing a data encryption execution protocol based on a finally expected operation result and interactive operation between the two CPs, to encrypt the data; and step S3: receiving, by a navigation service provider (NSP), encrypted data from the CPs, decrypting the received encrypted data, and estimating an urban traffic status by using a compressive sensing technology.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: April 12, 2022
    Assignee: FUZHOU UNIVERSITY
    Inventors: Ximeng Liu, Wenzhong Guo, Jiayin Li, Xiaoyan Li, Hongbin Zhuang
  • Patent number: 11292519
    Abstract: A calibration method in which, a rotation angle calculation device calculates a rotation angle based on a detection signal of a sensor, transmits rotation angle data indicating the rotation angle to a calibration device, and transmits time difference data relating to a time difference after having captured the detection signal until transmitting the rotation angle data to the calibration device, and in which the calibration device measures a rotation angle, clocks a measurement time at which the rotation angle is measured and a transmission time of transmitting or receiving the rotation angle data, and acquires calibration data of the rotation angle data by comparing the rotation angle measured at a time obtained by going back in time from the transmission time by the time difference after having captured the detection signal until transmitting the rotation angle data and the rotation angle data with each other.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: April 5, 2022
    Assignee: NSK LTD.
    Inventors: Yusuke Nishioka, Yoshihiro Aosaki, Hiroyuki Yamamura
  • Patent number: 11279363
    Abstract: A method of controlling a drive device of a construction machine with a split transmission, which is at least coupled, at an input side, to a drive force source and, on the output side, with a drive range change transmission so as to set at least two shiftable drive ranges. The method includes a detection step (S1) for detecting drive dynamic requests for operation of the construction machine and a determination step (S2) for determining whether a drive dynamic request with an increased drive dynamic is present. If a drive dynamic request with increased drive dynamics is determined, then a shifting step (S4) is executed for shifting the drive range change transmission from a second, of the at least two drive ranges, to a first of the at least two drive ranges, to achieve increased driving dynamics of the construction machine.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: March 22, 2022
    Assignee: ZF Friedrichshafen AG
    Inventors: Simon Geiger, Matthias Madlener, Stephan Schinacher, Matthias Duller
  • Patent number: 11242672
    Abstract: A wheel loader configured to reduce a sudden change in vehicle speed caused by an erroneous determination of a raising operation of a lift arm is provided. A wheel loader 1 includes an engine 3, a variable displacement type HST pump 41, a variable displacement type HST motor 42 coupled to the HST pump 41 in a closed circuit, a hydraulic pump for working device 43, a forward/reverse selector switch 62 for switching a forward movement and a backward movement of a vehicle body, a depression amount sensor 610 that detects a depression amount of an accelerator pedal 61, a pressure sensor 73 that detects a discharge pressure Pa of the hydraulic pump for working device 43, and a controller 5. The controller 5 determines whether a specific condition to identify an upward movement of a lift arm 21 during a forward travel of the vehicle body based on a forward/reverse switching signal, the depression amount of the accelerator pedal 61, and the discharge pressure Pa detected by the pressure sensor 73.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: February 8, 2022
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Koji Hyodo, Isamu Aoki, Tetsuji Tanaka, Koji Shimazaki, Hironao Suzuki
  • Patent number: 11186127
    Abstract: A rotary joint for use with a central tire inflation system and a network of sensorized components for a driveline is provided. The rotary joint comprises a sealing gasket wear detection system and a rotary encoder disposed within a joint cavity. The network of sensorized components comprises a sensorized wheel hub, a transmission speed sensor, and a controller in communication with the sensorized wheel hub and the transmission speed sensor through a communication bus. A method of utilizing a network of sensorized components to analyze a driveline and a method for monitoring a wear of a sealing gasket of a rotary joint is also provided.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: November 30, 2021
    Assignee: DANA ITALIA S.R.L
    Inventors: Carlos Maximiliano Giorgio Bort, Alessandro Massei, Giulio Ornella, Donald J. Remboski, Doug D. Turner, Fabrizio Zendri
  • Patent number: 11187318
    Abstract: A vehicle includes an engine; a continuously variable transmission; an output clutch disposed between the continuously variable transmission and the drive wheel; a drive motor coupled between the output clutch and the drive wheel; a traveling mode controller; and a speed ratio controller. In a case where required driving power based on an accelerator position is less than a first threshold, the traveling mode controller switches a traveling mode to a first traveling mode. In a case where the required driving power is equal to or greater than the first threshold, the traveling mode controller switches the traveling mode to a second traveling mode. In a case where the required driving power is less than the first threshold and equal to or greater than a second threshold, the speed ratio controller causes a speed ratio of the continuously variable transmission to change depending on a vehicle speed.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: November 30, 2021
    Assignee: SUBARU CORPORATION
    Inventors: Satoshi Inoue, Kazuhiro Yoshida, Takuya Machida
  • Patent number: 11187319
    Abstract: A method for learning a reference position of a DCT gear motor is proposed. The method includes: a first voltage supply step of supplying voltage to the motor to allow the motor to rotate to a stored reference point; a second voltage supply step of repeating a process that increases the level of the voltage supplied to the motor to a higher level than the level of the voltage applied in the first voltage supply step and decreases the level, wherein the voltage is supplied to the motor to gradually increase the level thereof; a step of monitoring a position change of the motor; a step of stopping voltage supply to the motor when a temporary position change is generated in the motor to remove the temporary position change; and a step of setting the current position of the motor as a new reference point.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: November 30, 2021
    Assignee: Hyundai Kefico Corporation
    Inventors: Nam Hun Kim, Tae Su Kim
  • Patent number: 11180131
    Abstract: A control system for hybrid vehicles for reducing a shock caused by a change in an output torque of a transmission during a shifting operation of a transmission. In the hybrid vehicle, an engine and a first motor are connected to an input side of an automatic transmission, and a second motor is connected to an output side of the automatic transmission. A controller calculates a change in an output torque of the transmission when establishing a predetermined gear stage, based on a torque capacity of an engagement device to be engaged and an input torque to the transmission, and select one of the first motor and the second motor that requires less power to reduce the change in the output torque of the automatic transmission.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: November 23, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Jonggap Kim
  • Patent number: 11173899
    Abstract: A control device for forward collision avoidance in a vehicle includes a forward object determination unit configured to recognize an object in front of the vehicle and to determine an attribute of the recognized object, a gear position detection unit configured to detect a gear position of the vehicle, and a forward collision-avoidance assist (FCA) control unit configured to finally determine the attribute of the object determined by the forward object determination unit according to the gear position input from the gear position detection unit and to set an FCA control range based on the finally determined object attribute.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: November 16, 2021
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventor: Tae Keun Cho
  • Patent number: 11167765
    Abstract: Provided is a wheel loader in which the speed position of the transmission can be easily changed with a small number of switches. The wheel loader 1 includes a tilting angle sensor 9 for detecting the tilting angle of the vehicle body. In case that the vehicle body is traveling on an uphill or a downhill with a transmission 33 in a higher speed position than the lowest speed position, and the tilting angle detected by the tilting angle sensor 9 is not smaller than a prescribed threshold value, a transmission control device 45 sends the transmission 33 a command to downshift the transmission 33 one speed position by each operation of a shiftdown switch 62.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: November 9, 2021
    Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Keisuke Naitou, Ryou Taniguchi
  • Patent number: 11125572
    Abstract: There is achieved an electronic control device capable of calculating an optimal travel plan even during dynamic reconfiguration of a calculation circuit configuration. When a driving state changes, a travel plan parameter generation/selection unit divides evaluation calculation units into two blocks and performs reconfiguration of the respective evaluation calculation units a plurality of times via a reconfiguration control unit. While the evaluation calculation units are reconfigured, the evaluation calculation units performs evaluation calculation, and while the evaluation calculation units are reconfigured, the evaluation calculation units perform evaluation calculation. Thus, even while some of the evaluation calculation units are being reconfigured, it is possible to continue evaluation of the travel plan in the rest of the evaluation calculation units.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: September 21, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Ryoichi Inada, Tatsuya Horiguchi, Teppei Hirotsu, Hideyuki Sakamoto
  • Patent number: 11124172
    Abstract: The invention relates to a method and an arrangement for controlling a gearshift in a vehicle with a transmission (120) comprising a stepped gearing, the transmission (120) being arranged between an engine (110) and at least one driven axle (123), wherein the engine and the transmission are controlled by an electronic control unit (140), The method involves monitoring at least one parameter related to a vehicle operating condition; registering that a manual upshift command is requested; determining a desired shift point and a target engine speed based on a parameter comprising at least current engine speed; and performing an upshift when the target engine speed is reached.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: September 21, 2021
    Assignee: VOLVO TRUCK CORPORATION
    Inventors: Niklas Öberg, Anders Eriksson
  • Patent number: 11118674
    Abstract: A control unit (11) that outputs a shift signal to a transmission (4) when the control unit recognizes that the bucket (1) is in a loading position, such that the transmission (4) shifts not to the next-higher gear ratio, but to a further, even higher, gear ratio.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: September 14, 2021
    Assignee: ZF Friedrichshafen AG
    Inventors: Andreas Schwarz, Thomas Kurz
  • Patent number: 11117461
    Abstract: The invention relates to a drive train for a hybrid vehicle with an internal combustion engine, with a transmission and with an electric machine, wherein the electric machine is arranged between the internal combustion engine and the transmission. The drive train can be provided in a simple, economical and/or space-saving manner in that the transmission comprises at least one overrun-enabled forward gear transmitting traction torque only and at least one overrun-free forward gear. A hybrid vehicle can be operated with a drive train of this kind easily and efficiently in that, when an overrun-enabled forward gear transmitting only traction torque is engaged and while the vehicle speed lies below a certain engagement speed for an overrun-free forward gear and at least one criterion for the presence of a driving torque is established or satisfied, the transmission is shifted into the overrun-free forward gear.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: September 14, 2021
    Assignee: VOLKSWAGEN AKTIENGESELLSCHAFT
    Inventors: Wolfgang Vöge, Jannis Zimmermann
  • Patent number: 11105421
    Abstract: A Controller constitutes a control device for a vehicle having an automatic transmission on which a shift-by-wire system is mounted. The controller changes display of an range indicator to N-range display after disengagement determination of an power transmission clutch is made when a shifting operation from a D range to a N range is performed.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: August 31, 2021
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Takateru Kawaguchi, Fumitaka Nagashima, Hideharu Yamamoto
  • Patent number: 11105413
    Abstract: The gear position measuring device includes a switch, an output unit, a processor, and a storage. The switch includes multiple individual contacts respectively corresponding to the multiple gear positions. The multiple individual contacts are separated into multiple gear position groups that include at least two of the multiple individual contacts. The output unit includes circuits so that the individual contacts for the gear positions of each of the multiple gear position groups are connected to the same circuit, thereby being able to output from the circuits that are different for each of the multiple gear position groups. When an output value from the output unit is changed, the processor determines a current gear position on the basis of the gear position stored in the storage and the multiple gear positions corresponding to the output value from the output unit.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: August 31, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Akira Mogi, Atsuki Sato
  • Patent number: 11105418
    Abstract: An ECU determines whether or not a road surface changes from a low ? road surface to a high ? road surface based on image data obtained by a camera sense. When the ECU determines that the accelerator pedal operation amount deceases greatly in a predetermined determination period from a time point at which a drive wheel slip state occurs in a case where the ECU determines that the road surface changes from the low ? road surface to the high ? road surface, it prohibits upshift operation of an automatic transmission over a predetermined period from that time point.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: August 31, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ryochi Watanabe
  • Patent number: 11052925
    Abstract: A target vehicle speed generation device generates a target vehicle speed of a driving-assisted vehicle (autonomously driven vehicle). The target vehicle speed generation device includes a controller that includes a plurality of vehicle speed command generation units and generates a target vehicle speed for when the vehicle is to travel/stop. The controller includes a look-ahead vehicle speed command calculation unit and a lowest vehicle speed command mediation unit. The look-ahead vehicle speed command calculation unit calculates a look-ahead vehicle speed command value that comes after the elapse of a prescribed amount of time from a present time for each vehicle speed command value generated by the plurality of vehicle speed command generation units. The lowest vehicle speed command mediation unit selects a lowest value among the plurality of look-ahead vehicle speed command values calculated by the look-ahead vehicle speed command calculation unit.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: July 6, 2021
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Akinobu Gotou, Takashi Fukushige, Satoshi Tange
  • Patent number: 11054024
    Abstract: A shift by wire-based transmission system and a method for controlling the same, may include a transmission lever, a main controller that determines a target gear stage and a current control delay time of an actuator based on a manipulation signal received from the transmission lever and controls driving of the actuator based on the determined target gear stage and the current control delay time to determine a gear stage position in a response to the driving of the actuator, and a transmission control unit that controls a hydraulic pressure based on the gear stage position determined by the main controller.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: July 6, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Sang Hyun Jeong, Gyeong Cheol Kim, Dae Won Yang
  • Patent number: 11046325
    Abstract: A vehicle control system and method utilize a transmission control module configured to generate a first target speed for a torque generating system for executing a downshift of an automatic transmission and a torque generating system control module configured to determine a second target speed for the torque generating system for executing the downshift of the automatic transmission, determine upper and lower target speed limits for the torque generating system for executing the downshift of the automatic transmission, based on the first and second target speeds and the upper and lower target speed limits, determine a final target speed for the torque generating system for executing the downshift of the automatic transmission, determine a target torque output for the torque generating system based on a current speed of and the final target speed for the torque generating system, and control the torque generating system based on the target torque output.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: June 29, 2021
    Assignee: FCA US LLC
    Inventors: Chandrashekar Boopalam, Chandrakant Gavara
  • Patent number: 11028558
    Abstract: A controller determines a compensation factor from an operating amount of an accelerator operating member and a hydraulic pressure of at least one of a first circuit and a second circuit. The controller determines a target vehicle speed from the operating amount of the accelerator operating member. The controller determines at least one of a target displacement of a travel pump and a target displacement of a travel motor from the target vehicle speed and the compensation factor.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: June 8, 2021
    Assignee: KOMATSU LTD.
    Inventor: Takahisa Oasa
  • Patent number: 11029233
    Abstract: The input/output characteristic estimation method for testing system comprises; first excitation measurement steps (S3-S5) in which an input obtained by superimposing an excitation input d2 onto a second torque control input ib2 is input to a second dynamometer, and the frequency response i2d2 with respect to the excitation input d2 is measured; second excitation measurement steps (S7-S9) in which input obtained by superimposing excitation input d3 on third torque control input ib3 is input to a third dynamometer, and frequency response i2d3 with respect to the excitation input d3 and the like are measured; and mechanical characteristic estimation steps (S11 and S12) in which the response measured in the first and second excitation measurement steps are used to estimate the transfer function Gt2_i2 and the like from the second or third torque current command signals (i2, i3) to the first or second axial torque detection signals (t2 or t3).
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: June 8, 2021
    Assignee: Meidensha Corporation
    Inventor: Takao Akiyama
  • Patent number: 11028919
    Abstract: An apparatus and a method for controlling shifting of a vehicle are provided. The apparatus includes a transmission configured to transmit power generated from by a motor to a vehicle wheel, and a controller configured to control an operation of the transmission. The controller is configured to enter a LURCH control mode when sensing shifting of a shift lever between a D range and an R range during driving to maintain a clutch torque in the transmission, to decrease a vehicle speed by controlling a motor speed, and to shift a gear of the vehicle by changing a motor torque when the vehicle speed reaches a threshold speed.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: June 8, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Hyun Woo Lim