Patents by Inventor Tetsuya Morino

Tetsuya Morino has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200307679
    Abstract: A vehicle running control system includes: a steering apparatus that includes a turning device being mechanically separated from a steering wheel; a vehicle drive unit; and a control device. The control device is configured to execute: a turning processing that controls the turning device such that an actual turning angle of the wheel approaches a target turning angle; a vehicle driving processing that determines a target vehicle driving force according to a required vehicle driving force based on a vehicle driving request and that controls the vehicle drive unit so as to cause an actual vehicle driving force to the target vehicle driving force determined; and where a turning angle difference is greater than a turning angle threshold value in a low vehicle speed condition, a driving force limiting processing that limits the target vehicle driving force so as to become smaller than the required vehicle driving force.
    Type: Application
    Filed: March 25, 2020
    Publication date: October 1, 2020
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, PACIFIC INDUSTRIAL CO., LTD.
    Inventors: Tetsuya MORINO, Yusuke Nakano, Rio Suda, Yoshio Kudo, Toshiya Furukura
  • Publication number: 20200307674
    Abstract: A steering control system includes a steering-motor for turning wheels, a reaction-force-motor for applying a reaction torque to a steering of the vehicle, and a controller. The controller calculates a turning angle based on a first-characteristic representing a relationship of the turning angle to a steering angle, and calculates a reaction torque based on a second-characteristic representing a relationship of a reaction torque to the steering angle. The controller changes the first-characteristic from a characteristic corresponding to a first-state to a characteristic corresponding to a second-state in response to a change in the state of the vehicle from the first-state to the second-state. The controller maintains the second-characteristic at the characteristic corresponding to the first-state when the state of the vehicle changes from the first-state to the second-state in the case where the steering angle is steered to a steering limit corresponding to an upper limit of the turning angle.
    Type: Application
    Filed: March 24, 2020
    Publication date: October 1, 2020
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, PACIFIC INDUSTRIAL CO., LTD.
    Inventors: Tetsuya MORINO, Toshiya FURUKURA, Yoshio KUDO
  • Publication number: 20200298901
    Abstract: In a controller for a steering device, the steering device includes a structure where motive power transmission between a steering unit and a turning unit is separated. The controller includes a control circuit configured to control operation of a steering-side motor that is provided in the steering unit to give steering reaction force that is force against the steering input into the steering unit. In a case where turning of the turning wheels to one direction is restricted, the control circuit is configured to calculate restriction reaction force for restricting steering that is to turn the turning wheels to the one direction. The control circuit is configured to calculate the restriction reaction force based on information on the steering unit.
    Type: Application
    Filed: March 17, 2020
    Publication date: September 24, 2020
    Applicants: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koji ANRAKU, Isao NAMIKAWA, Yusuke KAKIMOTO, Yoshio KUDO, Tetsuya MORINO
  • Publication number: 20200062294
    Abstract: A controller includes a control circuit configured to calculate a target corresponding steered angle that is a target value of a corresponding steered angle based on the transmission ratio associated with the vehicle speed. The corresponding steered angle is a rotation angle of a rotation shaft, which is convertible to the steered angle whose magnitude is changed relative to a value indicating the steering angle. The control circuit is configured to control the actuation of the motor so that an actual corresponding steered angle is a final target corresponding steered angle that is based on the target corresponding steered angle. The control circuit is configured to calculate the target corresponding steered angle by adjusting the transmission ratio based on a value indicating acceleration or deceleration of a vehicle.
    Type: Application
    Filed: August 21, 2019
    Publication date: February 27, 2020
    Applicants: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi KODERA, Masayuki KITA, Toru TAKASHIMA, Tetsuya MORINO
  • Patent number: 10411566
    Abstract: In a motor temperature estimating device including: a polyphase motor 1 having a first phase coil, a second phase coil and a third phase coil; current sensors; a determination section that determines whether or not the polyphase motor is rotating; and a transformation section that transforms a first phase output signal from the first phase current sensor, a second phase output signal from the second phase current sensor, and a third phase output signal from the third phase current sensor to output a post-transformation output signal, the post-transformation output signal is inputted to a first temperature estimation section that estimates the temperature of the polyphase motor during rotation, and the first phase output signal, the second phase output signal and the third phase output signal are inputted to a second temperature estimation section that estimates the temperature of the polyphase motor during stop.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: September 10, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toru Takashima, Yusuke Suetake, Tetsuya Morino
  • Publication number: 20190202492
    Abstract: A steer-by-wire system includes a steering reaction torque generation device mechanically separated from a turning device for turning wheels and configured to apply a reaction torque to a steering wheel. The steering reaction torque generation device has a duplex configuration including a first system and a second system, each system including a reaction torque motor. When both systems are normal, a control device generates the reaction torque having a normal characteristic by controlling an operation of the reaction torque motor of at least one system. In a case of single failure where one of the systems fails, the control device generates the reaction torque having a first characteristic by controlling an operation of the reaction torque motor of another of the systems. The reaction torque having the first characteristic is different from the reaction torque having the normal characteristic with respect to a same steering angle.
    Type: Application
    Filed: October 31, 2018
    Publication date: July 4, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Satoru NIWA, Toru TAKASHIMA, Tetsuya MORINO, Yoshio KUDO
  • Patent number: 10086669
    Abstract: Left and right stabilizer bars are provided between left and right wheels of a vehicle. A control unit controls an actuator to control a rotation angle of the right stabilizer bar with respect to the left stabilizer bar. The control unit determines whether the vehicle is moving, whether a vehicle speed is less than a first threshold value, and whether a vehicle state is in transition from a moving state to a stopped state. A detection unit detects a control amount of the actuator. When the vehicle is moving, the vehicle speed is less than the first threshold value, the vehicle state is in transition from the moving state to the stopped state, and the control amount of the actuator is greater than zero, the control unit decreases the control amount of the actuator such that the control amount of the actuator becomes zero before the vehicle speed becomes zero.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: October 2, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toru Takashima, Tetsuya Morino, Yusuke Suetake
  • Publication number: 20170349024
    Abstract: Left and right stabilizer bars are provided between left and right wheels of a vehicle. A control unit controls an actuator to control a rotation angle of the right stabilizer bar with respect to the left stabilizer bar. The control unit determines whether the vehicle is moving, whether a vehicle speed is less than a first threshold value, and whether a vehicle state is in transition from a moving state to a stopped state. A detection unit detects a control amount of the actuator. When the vehicle is moving, the vehicle speed is less than the first threshold value, the vehicle state is in transition from the moving state to the stopped state, and the control amount of the actuator is greater than zero, the control unit decreases the control amount of the actuator such that the control amount of the actuator becomes zero before the vehicle speed becomes zero.
    Type: Application
    Filed: April 7, 2017
    Publication date: December 7, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toru TAKASHIMA, Tetsuya MORINO, Yusuke SUETAKE
  • Publication number: 20170307448
    Abstract: In a motor temperature estimating device including: a polyphase motor 1 having a first phase coil, a second phase coil and a third phase coil; current sensors; a determination section that determines whether or not the polyphase motor is rotating; and a transformation section that transforms a first phase output signal from the first phase current sensor, a second phase output signal from the second phase current sensor, and a third phase output signal from the third phase current sensor to output a post-transformation output signal, the post-transformation output signal is inputted to a first temperature estimation section that estimates the temperature of the polyphase motor during rotation, and the first phase output signal, the second phase output signal and the third phase output signal are inputted to a second temperature estimation section that estimates the temperature of the polyphase motor during stop.
    Type: Application
    Filed: March 20, 2017
    Publication date: October 26, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toru TAKASHIMA, Yusuke SUETAKE, Tetsuya MORINO
  • Patent number: 8843276
    Abstract: A device for controlling a steering transmission ratio variable device, which is provided with: a motor, which is able to apply a driving force that promotes relative rotation between a steering output shaft coupled to wheels to be turned and a steering input shaft that applies a steering input to the steering output shaft to one of either the steering output shaft or the steering input shaft; a motor driving device that drives the motor; and a locking device that is able to restrict the relative rotation, has a setting device that prescribes a drive voltage the motor and sets a damping gain, which acts in a direction that reduces a rotating speed of the motor, to a value that is larger than a reference value corresponding to an unlocked state during a locking control period in which a state of the steering transmission ratio variable device switches from an unlocked state in which the relative rotation is not restricted to a locked state in which the relative rotation is restricted.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: September 23, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takahiro Kojo, Yoshiaki Tsuchiya, Noritsugu Iwazaki, Tetsuya Morino
  • Publication number: 20120221208
    Abstract: A device (100) for controlling a steering transmission ratio variable device (200), which is provided with: a motor (202), which is able to apply a driving force that promotes relative rotation between a steering output shaft (15) coupled to wheels to be turned and a steering input shaft (12) that applies a steering input to the steering output shaft (15) to one of either the steering output shaft (15) or the steering input shaft (12); a motor driving device (300) that drives the motor; and a locking device vice (203) that is able to restrict the relative rotation, has a setting device that prescribes a drive voltage (V) of the motor and sets a damping gain (D2), which acts in a direction that reduces a rotating speed (??act) of the motor, to a value (D2lock) that is larger than a reference value (D2base) corresponding to an unlocked state during a locking control period in which a state of the steering transmission ratio variable device switches from an unlocked state in which the relative rotation is not re
    Type: Application
    Filed: November 18, 2010
    Publication date: August 30, 2012
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takahiro Kojo, Yoshiaki Tsuchiya, Noritsugu Iwazaki, Tetsuya Morino
  • Patent number: 5492101
    Abstract: A fuel injection valve 15 is disposed in an intake passage 9 of an engine body 1. A combustion chamber 5 communicates with the intake passage 9 for introducing fuel injected from the fuel injection valve 15 at predetermined intake timings. A plurality of sensors are provided in the engine body 1 or fuel intake system for detecting various engine operational conditions including properties of fuel. A control unit 30 calculates a fuel quantity-of-state in the combustion chamber 5 in accordance with the engine operational conditions detected by the sensors, using an atomized fuel behavioral model representing behavior of fuel injected from the fuel injection valve 15, an intake passage fuel behavioral model representing fuel behavior in the intake passage 9 and a combustion chamber fuel behavioral model representing fuel behavior in the combustion chamber 5.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: February 20, 1996
    Assignees: Nippon Soken, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Kimitaka Saito, Tetsuya Morino, Keiso Takeda