Transmission Control Patents (Class 701/51)
  • Patent number: 10990098
    Abstract: A vehicle control apparatus including a surrounding circumstances detector detecting surrounding circumstances of a self-driving vehicle and a microprocessor generating an action plan including a target path of the self-driving vehicle based on the surrounding circumstances detected and controlling a driving component so that the self-driving vehicle travels by self-driving in accordance with the action plan. The microprocessor is configured to perform calculating a hindrance time a first action plan is hindered when a second action plan is generated, determining whether the hindrance time is shorter than a predetermined time period, and controlling the driving component to keep a first state according to the first action plan when the hindrance time is shorter than the predetermined time period, while to change to a second state according to the second action plan when the hindrance time is longer than or equal to the predetermined time period.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: April 27, 2021
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takayuki Kishi, Akira Kito, Yoshiaki Konishi, Toshiyuki Mizuno
  • Patent number: 10974723
    Abstract: A drive force control system for improving operational easiness of an accelerator. The control system is configured to: set a slope of a target acceleration such that the target acceleration is increased with a reduction in a vehicle speed; detect an operating period of the accelerator between turning points at which an operating speed of the accelerator is changed from a low speed to a high speed; set the slope of the target acceleration in accordance with the detected operating period; and set the slope of the target acceleration of a case in which the operating period of the accelerator is longer than a predetermined operating period steeper than the slope of the target acceleration set in accordance with the predetermined operating period.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: April 13, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yoshihito Kanno
  • Patent number: 10975961
    Abstract: This vehicle control device 10 is provided with: a current gear stage selection unit 13 which, on the basis of the travel resistance of the vehicle, selects a current gear stage, which is the gear stage of the vehicle in the current travel segment where the vehicle is traveling; a next gear stage selection unit 16 which selects a next gear stage, which will be the gear stage of the vehicle in the next travel segment, forwards in the travel direction of the vehicle, having a road slope different from that of the current travel segment; and a shift control unit 17 which, if during travel of the vehicle in the current travel segment in the current gear stage, the current gear stage selection unit 13 has newly selected a target gear stage higher than the next gear stage, controls shifting such that upshifting from the current gear stage to the target gear stage is suppressed and the current gear stage is maintained.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: April 13, 2021
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Tatsuya Ooshima, Nobuyuki Nishimura
  • Patent number: 10960882
    Abstract: Methods and systems are provided for providing off-road capabilities in electric vehicles with a single gear reduction. In one example, when a 4×4 mode is selected in an electric vehicle, a relationship between motor torque and accelerator pedal position is changed so as to increase the vehicle creep wheel torque. A degree of increase of the creep wheel torque is adjusted as a function of the terrain on which the vehicle is off-roading.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: March 30, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Kevin Ray Ruybal, Rajit Johri, Jose Velazquez Alcantar
  • Patent number: 10955046
    Abstract: A control device that includes an electronic control unit that is configured to perform, when specific control that causes a change in a state of a hydraulic circuit in the hydraulic control device that involves an increase in hydraulic pressure at the discharge port is performed in a state in which a rotational speed of the electric motor is a first rotational speed, torque increase control that controls drive of the electric motor such that torque of the electric motor starts to increase before hydraulic pressure at the discharge port increases by the specific control.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: March 23, 2021
    Assignee: AISIN AW CO., LTD.
    Inventors: Keisuke Nishimura, Yoichi Tajima, Kazuomi Okasaka
  • Patent number: 10927952
    Abstract: A shifting controller controls a shifting device of a human-powered vehicle and includes a data acquisition interface, a data storage device, and a control unit. The data acquisition interface is configured to acquire a first reference value of a first variable in relation to the human-powered vehicle. The data storage device has stored therein a shifting condition specified by at least one of a direction of change, an amount of change, and a rate of change that are information on a change in the first variable. The control unit includes a processor that is configured to control the shifting device based on a change in the first reference value and the shifting condition.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: February 23, 2021
    Assignee: Shimano Inc.
    Inventors: Satoshi Shahana, Takehiko Nakajima
  • Patent number: 10907976
    Abstract: A network system evaluates candidate GPS routes with respect to map routes that are based on ground truth map data to identify defects in the ground truth map data. Defects in the ground truth map data may include inconsistencies between various attributes of the map data and the actual road network represented by the candidate GPS routes under evaluation. The network system corrects the identified feedback to ensure that the ground truth map data accurately reflects the attributes of the actual road network.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: February 2, 2021
    Assignee: Uber Technologies, Inc.
    Inventors: Jialin Jiao, Berk Gurakan, Vikram Saxena, Haider Ali Razvi
  • Patent number: 10900796
    Abstract: Aspects of the disclosure relate to enhanced telematics processing systems with improved third party source data integration features and enhanced customized driving output determinations. A computing platform may receive telematics data and third party source data. The computing platform may enrich the telematics data using the third party source data. After generating the enriched telematics data, the computing platform may use machine learning algorithms and datasets to validate the enriched telematics data. The computing platform may ingest, via a batch ingestion process, the enriched telematics data. For example, the computing platform may store the enriched telematics data and generate additional enriched telematics data until expiration of a predetermined period of time. The computing platform may ingest the enriched telematics data associated with each trip. Once the enriched telematics data has been ingested, the computing platform may generate a standardized common trip format output for each trip.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: January 26, 2021
    Assignee: Allstate Insurance Company
    Inventors: Zoran Navratil, Kevin Patrick Rice, Daniel Brian Mohnen, Kevin Glickley, Nilesh Ponnala, Rahul Chandrawanshi
  • Patent number: 10894540
    Abstract: A vehicle control apparatus includes: a brake control portion which is configured, when a vehicle is stopped, to cause a braking apparatus to keep a stopped state in which the vehicle is held stopped independently of operation of a brake pedal of the vehicle; a driver-assistance control portion which is configured to start a driver assistance operation in response to a manual operation made by the operator, and which is configured, when the stopped state is kept by the brake control portion, to withhold start of the driver assistance operation; and a withhold cancel portion which is configured, when a returning operation of the brake pedal has been made by the operator, to cause the driver-assistance control portion to cancel withhold of the start of the driver assistance operation.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: January 19, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yusuke Nakade
  • Patent number: 10883597
    Abstract: A vehicle control device includes a belt slippage determination unit which determines whether or not slippage of a belt has occurred based on rotation of a drive pulley and rotation of a driven pulley, an output state determination unit which determines an output state of a sensor that acquires a signal corresponding to the rotation of the driven pulley, and a speed of rotation limitation unit which controls an upper limit of the speed of rotation of the drive source based on the output state of the sensor when slippage of the belt is detected by the belt slippage determination unit.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: January 5, 2021
    Assignee: Honda Motor Co., Ltd.
    Inventors: Go Toshizane, Takeshi Kurata, Satoshi Kanazawa
  • Patent number: 10883255
    Abstract: A traction force limiting device for a working machine with a continuously variable transmission that comprises a variator for adjusting the rotational speed ratio of the transmission independently of the torque ratio of the transmission. The traction force limiting device has a traction force interface for providing information to determine a traction force of the working machine, a limit value interface for setting a traction force limit value of the working machine and a control interface for emitting a control signal to the variator. Additionally, the traction force limiting device has a computer unit designed, on a basis of information provided via the traction force interface, to determine the traction force, to compare the traction force determined with the traction force limit value set via the limit value interface, and to control the variator in such manner that the traction force does not exceed the traction force limit value.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: January 5, 2021
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventor: Jürgen Legner
  • Patent number: 10878253
    Abstract: A periphery monitoring device includes a gradient acquisition unit that acquires a gradient position a gradient value on a road surface and, based on state information indicating a state of the road surface in a traveling direction of a vehicle. The periphery monitoring device also includes a notification control unit that compares the acquired gradient value with a reference gradient value at which the vehicle can pass, and notifies of the comparison result in association with the gradient position.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: December 29, 2020
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Kazuya Watanabe, Yoji Inui
  • Patent number: 10875542
    Abstract: A device for controlling fail-safe for a vehicle includes a driving device that engages a clutch and a brake individually in a stopped state of the vehicle when a shift by wire system fails, and a controller that locks the engaged clutch and brake, and unlocks the clutch and the brake when a predetermined unlock manipulation pattern is input using a brake pedal and an accelerator pedal of the vehicle.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: December 29, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Hyeon Jun Kim, Yong Hyun Kim, Kyung Su Kim
  • Patent number: 10860020
    Abstract: System, methods, and other embodiments described herein relate to selectively processing sensor data to perceive aspects of a surrounding environment of a vehicle. In one embodiment, a method includes, in response to identifying attributes of the surrounding environment from sensor data of one or more sensors, selecting a perception technique from a plurality of perception techniques according to a human-based perception model that correlates the plurality of perception techniques with the attributes to identify which of the plurality of perception techniques efficiently process the sensor data. The method includes analyzing the sensor data using the perception technique to perceive characteristics of the surrounding environment that pertain to autonomously controlling the vehicle. The method includes autonomously controlling the vehicle according to the characteristics to navigate through the surrounding environment.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: December 8, 2020
    Assignee: Toyota Research Institute, Inc.
    Inventor: Jens Strabo Hummelshøj
  • Patent number: 10850613
    Abstract: A side-by-side off-road utility vehicle comprising a vehicle operational status switch for controlling the operational status of the vehicle, a side-by-side seating structure, a plurality of safety restraint devices operable to retain one or more vehicle passenger in the side-by-side seating structure, and a prime mover RPM controller. The prime mover RPM controller operable to output commands to the one or more prime mover of the vehicle to limit a rotational speed of the prime mover(s) when the vehicle is in an On operational status and a selected one or more of the one or more safety restraints is in a disengaged status.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: December 1, 2020
    Assignee: TEXTRON INC.
    Inventors: Shane Christopher Reid, John Lawrence Stocks, Matthew Lawrence O'Donnell
  • Patent number: 10801614
    Abstract: A vehicle lock-up clutch control method is performed in which an output of an engine is transmitted to an automatic transmission via a torque converter having a lock-up clutch. The method includes controlling a transmission torque capacity of the lock-up clutch such that a slip rotation speed of the lock-up clutch becomes zero after the lockup clutch is brought into a non-engaged state immediately after starting an accelerator operation, and when the accelerator operation is carried out during a fuel cut of the engine or in a state in which a road load and a driving force of the vehicle are balanced, and after completion of a downshift when the automatic transmission is downshifted while executing a slip control of the lock-up clutch from the non-engaged state to an engaged state during the accelerator operation.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: October 13, 2020
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Yuzuru Tohta
  • Patent number: 10788096
    Abstract: An apparatus for fixing a sticking damper clutch may include: a transmission controller configured to determine whether a damper clutch sticks, using engine controller information received from an engine controller and damper clutch status information of the damper clutch; and a hydraulic pressure controller configured to fix the sticking damper clutch according to the determination result of the transmission controller.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: September 29, 2020
    Assignee: Hyundai Autron Co., Ltd.
    Inventor: Hyeong-tak Lee
  • Patent number: 10774902
    Abstract: A control device of a vehicle including a multi-speed automatic transmission includes a first engagement control portion selecting a selected gear shift position having a synchronous rotation speed lower than an actual input rotation speed of the multi-speed automatic transmission at the time of return from the coasting running due to the depressing operation of the accelerator pedal and increasing an engagement force of an engagement element establishing the selected gear shift position to immediately increase a drive force of the vehicle; and a second engagement control portion engaging the engagement element establishing the target gear shift position when the actual input rotation speed of the multi-speed automatic transmission reaches a determination rotation speed set for determination of attainment to the synchronous rotation speed of the target gear shift position.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: September 15, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Norihiro Tsukamoto, Masakazu Owatari
  • Patent number: 10760682
    Abstract: A drive system is provided with a first motor generator as a power source, and a multistage gear transmission for changing the speed of output from the first motor generator and transmitting the output to drive wheels. The multistage gear transmission has a plurality of engagement clutches as shifting elements that are meshingly engaged upon movement from a disengaged position. This hybrid vehicle is provided with a start control device where, when a start clutch has been engaged while the vehicle is stopped, the start control device maintains the engagement of the start clutch for a duration that includes when the vehicle is stopped and until the next vehicle start.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: September 1, 2020
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Atsushi Tsukizaki, Masato Koga, Hiroyuki Fukuda, Ryohey Toyota
  • Patent number: 10753469
    Abstract: A hydrostatic transmission for a traction drive of a mobile working machine includes a variable-displacement pump and one or more motors connected to one another in a closed hydraulic circuit. An electronic control unit of the hydrostatic transmission is configured to initiate and to end a braking operation by the hydrostatic transmission if a traveling speed of the mobile working machine reaches a threshold value. The threshold value is adjustable by the electronic control unit automatically or in a manner dependent on a driver demand. The braking torque is also adjustable.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: August 25, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Heiko Witte, Martin Behm
  • Patent number: 10753467
    Abstract: In a transmission control device, a controller determines failure of one of a variator input side rotation sensor and a variator output side rotation sensor. A hydraulic control circuit and the controller variably control line pressure, and in a case where the failure is determined, fix the line pressure to a predetermined value or more. The hydraulic control circuit and the controller variably control a speed ratio of a variator by a double pressure regulation method, and in a case where the failure is determined, variably control the speed ratio of the variator by a single pressure regulation method.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: August 25, 2020
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Haruka Ozono, Masahiro Hamano
  • Patent number: 10746255
    Abstract: In some embodiments of the present disclosure, an electric motor is used to generate correction torques to counteract unwanted torque pulses generated by an internal combustion engine during startup and/or shutdown. In some embodiments, the electric motor may be mounted to an accessory drive such as a power take-off mechanism or a front end accessory drive (FEAD). In some embodiments, the correction torques may be used to enforce an engine speed target profile for startup or shutdown, and may be determined using a feedback control loop based on the engine speed. The correction torques help to reduce or eliminate noise, vibration, and/or harshness (NVH) during startup and/or shutdown.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: August 18, 2020
    Assignee: PACCAR INC
    Inventors: Michael D. Gerty, Uday Vadlamani
  • Patent number: 10746295
    Abstract: A control apparatus for a drive-force transmitting apparatus that includes a gear mechanism and a continuously-variable transmission mechanism including primary and secondary pulleys and actuators that apply first and second thrusts to the respective first and second pulleys. When a target gear ratio of the continuously-variable transmission mechanism is a highest gear ratio in a gear running mode, the control apparatus sets a value of the thrust ratio, which is used when calculating a target value of a secondary thrust, to a value that increases a difference between a lower limit value of the primary thrust and the target value of the secondary thrust, and sets a value of the thrust ratio, which is used when calculating a target value of the primary thrust, to a value that increases a difference between the target value of the secondary thrust and the target value of the primary thrust.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: August 18, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Taichi Washio
  • Patent number: 10737700
    Abstract: A vehicle includes a step-ratio automatic transmission having clutches engageable to provide forward and reverse gears, an electric machine selectively coupled to the transmission, a main pump powered by the electric machine and supplying oil to actuate selected transmission clutches, a gear selector configured for selecting a transmission gear, and a controller configured to stop the electric machine when the gear selector selects park or neutral, to operate the electric machine in a speed control mode using a higher controller gain in response to the gear selector selecting forward or reverse while the electric machine is stopped until the electric machine and the main pump reach a first speed threshold to reduce engagement delay of at least one of the transmission clutches, and to operate the electric machine using a lower controller gain when the electric machine and the main pump exceed the first speed threshold.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: August 11, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Xiaoyong Wang, Rajit Johri, Mark Steven Yamazaki, Jeffrey Allen Doering, Ming Lang Kuang, Wei Liang
  • Patent number: 10710571
    Abstract: A method for controlling a response to driving load of a hybrid vehicle includes: estimating an optimum speed for a current driving situation, estimating a target driving load based on the optimum speed, determining an eco-level corresponding to the target driving load from among a plurality of eco-levels, and changing at least some of an eco-gauge according to the determined eco-level.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: July 14, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sang Joon Kim, Young Chul Kim, Lee Hyoung Cho, Dong Ho Yang
  • Patent number: 10696358
    Abstract: A bicycle derailleur comprising a chain guide, an electric motor that displaces the chain guide and an electrically controllable device configured to, selectively, block the rotation of the electric motor and let the electric motor free to rotate. A method for actuating a bicycle derailleur comprising a chain guide and an electric motor that displaces the chain guide, comprises the steps of: receiving a gearshifting request signal; making the electric motor free to rotate; driving the electric motor to displace the chain guide until the chain guide is in an intended position while the electric motor is made free to rotate; and, blocking the rotation of the electric motor.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: June 30, 2020
    Assignee: Campagnolo S.r.l.
    Inventor: Davide Bernardele
  • Patent number: 10689004
    Abstract: A system detects a parameter and generates a first trip plan to automatically control the vehicle according to a first trip plan. A controller is connected to a sensor and configured to receive the parameter. The controller is configured to generate a new trip plan or modify the first trip plan into a modified trip plan based on at least one of a cumulative damage or an end of life. A new trip plan or the modified trip plan is configured, during operation of the vehicle according to the new trip plan or the modified trip plan, for at least one of an adjustment in velocity or avoiding one or more operating conditions of the vehicle, relative to the first trip plan.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: June 23, 2020
    Assignee: GE GLOBAL SOURCING LLC
    Inventors: Raghav Shrikant Kulkarni, Cesar Domingos, Vinaykanth V Mudiam, Neil Xavier Blythe, Shawn Gallagher, Daniel Loringer, Pedro Lopes, Vinayak Tilak, James Robert Mischler, Patricia Sue Lacy, Michael Majewski, Pradheepram Ottikkutti
  • Patent number: 10677349
    Abstract: Pressure regulation valve control device has line pressure regulation valve (4) having line pressure solenoid (41) and line pressure spool valve (42) and CVT control unit (8) controlling secondary pressure (Psec) by actuating the line pressure spool valve (42) by solenoid pressure (Psol) produced by controlling current command value (I) to the line pressure solenoid (41). CVT control unit (8) has abnormality control unit (81). The abnormality control unit (81) is configured to, when decrease in secondary pressure (Psec) is detected during travel, execute, during travel, abnormality control that increases solenoid pressure (Psol), supplied to line pressure spool valve (42) from line pressure solenoid (41), more than solenoid pressure (Psol) of a time when the decrease in secondary pressure (Psec) is detected. With this, even when the decrease in the pressure is detected during travel, the decrease in the pressure is suppressed during travel while reducing influence on vehicle travel.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: June 9, 2020
    Assignee: JATCO LTD
    Inventors: Soyoung Lee, Hajime Tasaka, Kokan Boku, Kosuke Abe, Tomoyuki Suwabe
  • Patent number: 10648557
    Abstract: A method for automatic calibration of a position detection sensor of an automatic transmission including a gearshift actuator, the method including registering, using the position detection sensor, the position of the gearshift actuator upon power-up of the transmission; and performing a calibration of the position detection sensor if the registered position of the gearshift actuator is outside a predetermined expected position range of the gearshift actuator or within a predetermined abnormal position range of the gearshift actuator.
    Type: Grant
    Filed: March 3, 2019
    Date of Patent: May 12, 2020
    Assignee: VOLVO TRUCK CORPORATION
    Inventors: Lars Karlsson, Johan Bjernetun
  • Patent number: 10641613
    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for resolving erroneous movement signals and for providing navigation instructions. One of the methods includes receiving data from two or more sensors, synchronizing the received data, determining a first subset of the synchronized data from the camera for a particular period of time and a second subset of the synchronized data from the other sensor for the particular period of time, comparing the first subset with the second subset to determine whether the first subset and the second subset indicate an erroneous movement signal, based on determining that the first subset and the second subset indicate an erroneous movement signal, selecting data for one of the sensors based on a sensor priority scheme for the sensors, and resolving the erroneous movement signal based on the selected data for the one of the sensors.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: May 5, 2020
    Assignee: Google LLC
    Inventors: Eve Astrid Andersson, Casey John Burkhardt, John Ove Peter Nilsson Lundblad, David Tseng, Charles L. Chen, Ying Zheng, Tiruvilwamalai Venkatram Raman
  • Patent number: 10632844
    Abstract: A side-by-side off-road utility vehicle comprising a vehicle operational status switch for controlling the operational status of the vehicle, a side-by-side seating structure, a plurality of safety restraint devices operable to retain one or more vehicle passenger in the side-by-side seating structure, and a prime mover RPM controller. The prime mover RPM controller operable to output commands to the one or more prime mover of the vehicle to limit a rotational speed of the prime mover(s) when the vehicle is in an On operational status and a selected one or more of the one or more safety restraints is in a disengaged status.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: April 28, 2020
    Assignee: Textron Inc.
    Inventors: Shane Christopher Reid, John Lawrence Stocks, Matthew Lawrence O'Donnell
  • Patent number: 10625604
    Abstract: A vehicle shift control device comprises: a shift position deciding portion deciding a shift position of a shift operating device based on a sensor signal output according to an operation of the shift operating device; and a drive power output command portion selecting a shift range based on a shift position determination signal output from the shift position deciding portion to cause a vehicle to run, when a communication abnormality has occurred so that the shift position determination signal is not transmitted from the shift position deciding portion to the drive power output command portion, the vehicle shift control device selecting a shift range maintained at the time of occurrence of the communication abnormality of the shift position determination signal if a vehicle speed is equal to or greater than a predetermined value, and selecting a neutral range if the vehicle speed is less than the predetermined value.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: April 21, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Yuma, Koki Ueno, Masato Tateno, Yusuke Nakade
  • Patent number: 10597116
    Abstract: A method of operating an electronic transmission is disclosed, including the following steps. First, turn on the electronic transmission, initialize settings, and perform as an operating mode. Next, detect whether a setup command, a shifting command, or a shutdown command is received. If the setup command is received, perform as the setup mode; if the shifting command is received, perform shifting; if the shutdown command is received, shut down the electronic transmission. If none of the commands is received for a predetermined period, detect whether a standby function is executed. If the function is not executed, shut down the electronic transmission; if the function is executed, perform as a standby mode, and detect whether to receive any command in a less energy consumption manner. If any command is received, return to perform as the operating mode whereby the method protects, including sustaining the power supply.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: March 24, 2020
    Assignee: TIEN HSIN INDUSTRIES CO., LTD.
    Inventor: Alfredo Sala
  • Patent number: 10590876
    Abstract: A method for operating a transmission device and a transmission with at least one oil chamber, in which is arranged a wheelset of the transmission device. At the same time, in order to determine the temperature in the oil chamber, an overall level is determined for the oil chamber, wherein an initial value is determined from the overall energy level at the start of the operation of the transmission device with the following steps: determination of a standardized shutdown time as a function of an external temperature and of the overall energy level that is present with the shutdown of the transmission device, determination of a corrected shutdown time as a function of the standardized shutdown time and a measured shutdown time, and determination of the initial value as a function of the corrected shutdown time and of the momentary external temperature.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: March 17, 2020
    Assignee: AUDI AG
    Inventors: Stefan Ammler, Florian Bauer
  • Patent number: 10563737
    Abstract: An automatic transmission, which is configured such that there is no difference of rotation between a third sun gear and an intermediate shaft in a state where a second clutch is brought into a release state and a seventh speed stage is established, is provided. In the automatic transmission, at the time of a gear shift from a tenth speed stage where second and third clutches and a first brake are brought into an engagement state to a seventh speed stage where first, third, and fourth clutches are brought into an engagement state, the fourth clutch is engaged and the first brake is released to establish the seventh speed stage with the second clutch in the engagement state. Then, the first clutch is engaged and the second clutch is released to make transition to the seventh speed stage with the second clutch in the release state.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: February 18, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshio Hasegawa, Masakazu Owatari, Norihiro Tsukamoto
  • Patent number: 10553039
    Abstract: A system for diagnosing deterioration of a drive belt in a vehicle may include an engine, a motor connected to a shaft of a crankshaft of the engine via the drive belt to generate electric power, a controller for identifying slip of the drive belt and subsequently determining that deterioration of the drive belt is diagnosed (the “deterioration diagnosis”) or slip of the drive belt is diagnosed as being due to friction of the engine (the “slip diagnosis”) depending on whether conditions for diagnosing deterioration are fulfilled and then generating a torque adjustment command to adjust torque of the motor depending on the deterioration diagnosis or the slip diagnosis, and a main battery for supplying electric power to the motor in response to the torque adjustment command.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: February 4, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Kwang-Seok Choi
  • Patent number: 10527166
    Abstract: A belt pulley control method of a continuously variable transmission may include setting, a controller, a permission change rate map by adding a predetermined margin to an output shaft rotation speed change rate of a normal road surface according to a high friction road condition; and controlling, the controller, a hydraulic pressure of the belt pulley to be raised when the output shaft rotation speed change rate of the current vehicle is equal to or greater than a set value of the permission change rate map.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: January 7, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Jin Young Hwang
  • Patent number: 10500953
    Abstract: A control apparatus of an all-wheel drive vehicle includes a vehicle speed detector, a first clutch, a second clutch, and a clutch controller. The vehicle speed detector detects a speed of the all-wheel drive vehicle. The first clutch is provided between a parking mechanism and a drive force source of the all-wheel drive vehicle, and adjusts first drive force to be transmitted from the drive force source to an output shaft of an automatic transmission of the all-wheel drive vehicle. The second clutch is provided between the parking mechanism and a drive wheel of the all-wheel drive vehicle, and adjusts second drive force to be transmitted from the output shaft to the drive wheel. The clutch controller controls engagement force of the first and second clutches, and disengages the first and second clutches when the speed of the all-wheel drive vehicle is equal to or less than a predetermined speed.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: December 10, 2019
    Assignee: SUBARU CORPORATION
    Inventor: Takahiro Yamamoto
  • Patent number: 10495158
    Abstract: A method and system for latching a solenoid. The method includes providing an axle disconnect system having an actuator with an electromagnetic coil, a housing, an armature, and a rotatable and axially slidable slide ring. The electromagnetic coil may then energized creating a magnetic flux through a magnetic circuit thereby causing the armature to move from a first to a second axial position where the magnetic flux through the magnetic circuit is uninterrupted. Once the electromagnetic coil has been energized, it is de-energized thereby allowing an amount of residual magnetism within the housing and/or the armature to maintain the armature in the second axial position. The armature is maintained in the second axial position by the magnetic flux of the magnetic circuit being uninterrupted.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: December 3, 2019
    Assignee: Dana Automotive Systems Group, LLC
    Inventors: Michael Z. Creech, Douglas D. Turner
  • Patent number: 10486679
    Abstract: A powertrain system includes a transmission, torque generating device, load coupled to a drive axle, a final drive unit in meshed gear engagement with the output shaft and the drive axle, and a controller. A requested output torque is processed using an open-loop lash state model populated with a capped output torque request table and a lash closure rate estimate table respectively providing a capped torque value and an estimated lash closure rate. Output speed is determined using a plant model, the capped torque value, and the estimated lash closure rate. The powertrain is controlled during the transition using the output speed. A lash angle may be calculated from the closure rate using an integrator logic block. A calibrated lash offset profile may be determined using the lash angle, and a reference speed may be generated using the lash offset profile.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: November 26, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Chia-Shang Liu, Robert L. Morris
  • Patent number: 10419940
    Abstract: A method for managing shared wireless communications in a wireless communication network is provided. The wireless communications network includes at least one cooperative device and at least one non-cooperative device. The method includes the steps of monitoring, by the at least one cooperative device, a selected channel of a shared spectrum of the wireless communication network, detecting, by the at least one cooperative device, a presence of a transmission from the non-cooperative device within a measurable vicinity of the cooperative device, and responding, by the at least one cooperative device, to the detected presence of the transmission from the non-cooperative device.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: September 17, 2019
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Robert Alderfer, Bernard McKibben, Gregory Rutz
  • Patent number: 10407044
    Abstract: A method for supporting car wash mode of a vehicle with internal electronic transmission range selection includes entering the vehicle into car wash mode with the engine off and the transmission in the Neutral position. Next, the method continues with monitoring the vehicle for misuse of car wash mode, and transitioning the vehicle transmission to Park from Neutral when misuse of car wash mode is detected.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: September 10, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Shawn M Harris, Timothy R Stockdale, Mark S Reinhart, Leanne F Giardini
  • Patent number: 10370826
    Abstract: A method for reducing fuel consumption of a work vehicle may include monitoring one or more loads associated with both a drive power requirement and a hydraulic power requirement for the work vehicle. In addition, the method may include actively adjusting one or more operating parameters of the work vehicle based on the monitored loads in a manner that meets the drive power requirement and the hydraulic power requirement for the work vehicle while reducing the fuel consumption of the vehicle's engine.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: August 6, 2019
    Assignee: CNH Industrial America LLC
    Inventors: Yun Xing, Troy Bateman
  • Patent number: 10358133
    Abstract: A derailleur-based electronic transmission system for an electric bicycle comprises a wheel; a driven sprocket set coupled to the wheel via at least a first one-way clutch, the driven sprocket set comprising two or more concentric sprockets of different effective diameters; a drive chain configured to engage the driven sprocket set; an electronically controllable derailleur configured to move the drive chain among the two or more sprockets; a pedal crank configured to cause rotation of the driven sprocket set by providing a user pedal force to the driven sprocket set through at least a second one-way clutch and the drive chain; a motor configured to cause rotation of the driven sprocket set by providing an electromechanical force to the driven sprocket set through at least a the drive chain; and an electronic controller configured to, responsive to a determination that a shift should occur at a time when neither the pedal crank nor the motor is causing rotation of the driven sprocket: operate the motor to rot
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: July 23, 2019
    Assignee: CIVILIZED CYCLES INCORPORATED
    Inventor: Zachary Schieffelin
  • Patent number: 10328943
    Abstract: An integrated control method is provided for an engine and a transmission and the method is capable of integrally controlling the engine and the transmission, based on a control correlation between the engine and the transmission. This method determines a target engine operating point reflecting a driving state of a vehicle and a driver's intention to accelerate, in an integrated control map having an engine control area and a transmission control area. The method calculates a target shift ratio based on the target engine operating point, thus being capable of significantly saving a man-hour required to set a map as compared to a conventional control method in which an engine torque map and a shift pattern map are individually set, and improving fuel efficiency.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: June 25, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Woo Il Chang, Joon Bae Kim, Chan Hee Won
  • Patent number: 10330197
    Abstract: A continuously variable transmission (CVT), a transmission control system, and a method vary CVT clamping pressure based on an operation parameter. The control system is configured to command an initial minimum clamping pressure to be applied to the variator assembly to achieve a desired torque capacity. The control system determines one or more vehicle operation parameters and determines a vehicle condition based on the vehicle operation parameter(s). The vehicle condition is selectable from at least a base condition, an elevated condition, and a high condition. The control system selects a compensation strategy based on the vehicle condition. If an elevated compensation strategy has been selected and a predetermined condition has been met, the control system commands an elevated clamping pressure to be applied to the variator assembly. If a high compensation strategy has been selected, the control system commands a high clamping pressure to be applied to the variator assembly.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: June 25, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Alexander S Barath, Crystal J Nassouri
  • Patent number: 10295055
    Abstract: A compression control device for a continuously variable transmission is provided in which the compression control device that controls the compression of either one of shaft elements of the continuously variable transmission calculates a slip state matrix from an amplitude ratio between a variable component of a rotational speed of the input shaft and a variable component of a rotational speed of the output shaft, a phase lag that is an indicator of difference in phase between a variable component of the rotational speed of the input shaft and a variable component of the rotational speed of the output shaft, and a gear ratio between the input shaft and the output shaft, estimates a power transmission state among the input shaft element, the output shaft element, and the power transmission element based on an eigenvalue sequence calculated from the slip state matrix, and controls compression.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: May 21, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Kyohei Sakagami
  • Patent number: 10295054
    Abstract: A vehicle includes a transmission having a first neutral with a first combination of engaged clutches and a second neutral with a second combination of engaged clutches. The first neutral has more engaged clutches than the second. A controller is programmed to, in response to a request to shift from a drive gear to the first neutral and a clutch of the drive gear being failed-on, shift to the second neutral.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: May 21, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: John Randall Armstead, Stephen Michael Cicala, Alexander Phillip McDonnell, Dongdong Dee Li, Conor Edward Sullivan
  • Patent number: 10259462
    Abstract: A method, a control unit and a computer program product for coupling an auxiliary power take-off of a motor vehicle transmission, in which, after a command to couple the auxiliary power take-off, conditions required for the coupling of the auxiliary power take-off are checked and, if the conditions are satisfied, an actuator system for coupling the auxiliary power take-off is activated. If, after the command to couple the auxiliary power take-off, the conditions for coupling the auxiliary power take-off are not fulfilled, then a control unit acts upon drive-train components in order to produce the conditions required for the coupling of the auxiliary power take-off.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: April 16, 2019
    Assignee: ZF Friedrichshafen AG
    Inventor: Roland Mair
  • Patent number: 10234026
    Abstract: An automatic transmission capable of properly judging faults of a switching mechanism is provided. A control part ECU of the automatic transmission TM has an actual change gear ratio calculating part 10 and a fault judging part 11. Under a condition that the control part ECU has recognized that the first brake device B1 is switched to a reverse rotation preventing state, if the actual change gear ratio is kept to be an actual change gear ratio prior to a reduction of a rotational speed of a drive source ENG when the rotational speed of the drive source ENG is reduced, then the fault judging part 11 judges that a first brake B1 has a fault.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: March 19, 2019
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yuya Tachibanada, Yutaka Ishikawa