Patents by Inventor Shou Oono

Shou Oono 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: 20220185121
    Abstract: A control method for an electric vehicle according to the present embodiment is a control method for an electric vehicle in which an electric motor 4 is used as a traveling drive source and deceleration is performed by a regenerative braking force of the electric motor 4.
    Type: Application
    Filed: March 27, 2019
    Publication date: June 16, 2022
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Akira SAWADA, Takashi NAKAJIMA, Kengo FUJIWARA, Shou OONO, YUI ITO
  • Publication number: 20220014134
    Abstract: A method for controlling an electric vehicle having a field winding type synchronous motor for providing a driving force, the field winding type synchronous motor that has a rotor having a rotor winding and a stator having a stator winding, by controlling a stator current flowing in the stator winding and a rotor current flowing in the rotor winding is provided.
    Type: Application
    Filed: November 15, 2018
    Publication date: January 13, 2022
    Applicant: NISSAN MOTOR CO., LTD.
    Inventor: Shou OONO
  • Patent number: 10994619
    Abstract: A control method for an electric vehicle includes controlling a torque of a motor based on a final torque command value by calculating the final torque command value such that a vibration damping control to reduce vibrations of a driving force transmission system of a vehicle is performed on a target torque command value set based on vehicle information, calculating the final torque command value based on the target torque command value and a value obtained by multiplying a drive-shaft torsional angular velocity by a feedback gain, estimating, by use of a vehicle model that models the driving force transmission system, a dead-zone period during which a motor torque output from the motor is not transmitted to a drive-shaft torque of the vehicle, and determining whether or not the vehicle is just before stop of the vehicle.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: May 4, 2021
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Akira Sawada, Kengo Fujiwara, Shou Oono
  • Publication number: 20190100114
    Abstract: A control method for an electric vehicle includes controlling a torque of a motor based on a final torque command value by calculating the final torque command value such that a vibration damping control to reduce vibrations of a driving force transmission system of a vehicle is performed on a target torque command value set based on vehicle information, calculating the final torque command value based on the target torque command value and a value obtained by multiplying a drive-shaft torsional angular velocity by a feedback gain, estimating, by use of a vehicle model that models the driving force transmission system, a dead-zone period during which a motor torque output from the motor is not transmitted to a drive-shaft torque of the vehicle, and determining whether or not the vehicle is just before stop of the vehicle.
    Type: Application
    Filed: December 14, 2016
    Publication date: April 4, 2019
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Akira Sawada, Kengo Fujiwara, Shou Oono
  • Patent number: 9461578
    Abstract: A motor control device of a vehicle includes a motor and a lock mechanism for locking the rotation of vehicle wheels. The motor control device includes a detection device for detecting release of the lock mechanism, a damping control device for suppressing torsional vibration of a drive shaft, and a current control device for controlling current flowing to the motor on the basis of a motor torque command value set by the damping control device. The current control device channels an excitation current for generating a magnetic flux in the motor on the basis of the detection result of the detection device.
    Type: Grant
    Filed: November 28, 2013
    Date of Patent: October 4, 2016
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yuji Katsumata, Ken Ito, Takashi Nakajima, Akira Sawada, Shou Oono, Hiroyuki Komatsu
  • Patent number: 9315114
    Abstract: A device for controlling an electric vehicle includes: a feedforward computation unit that is configured to input a motor torque instruction value and compute a first torque target value by feedforward computation; and a motor torque control unit that is configured to control a motor torque according to the first torque target value. The feedforward computation unit includes: a vehicle model which is configured to input the motor torque instruction value to model a characteristic from the motor torque to a drive shaft torsional angular velocity; and a drive shaft torsional angular velocity feedback model which is configured to feed back the drive shaft torsional angular velocity output from the vehicle model to the motor torque instruction value to compute the first torque target value.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: April 19, 2016
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Shou Oono, Ken Itou
  • Publication number: 20150303858
    Abstract: A motor control device of a vehicle includes a motor and a lock mechanism for locking the rotation of vehicle wheels. The motor control device includes a detection device for detecting release of the lock mechanism, a damping control device for suppressing torsional vibration of a drive shaft, and a current control device for controlling current flowing to the motor on the basis of a motor torque command value set by the damping control device. The current control device channels an excitation current for generating a magnetic flux in the motor on the basis of the detection result of the detection device.
    Type: Application
    Filed: November 28, 2013
    Publication date: October 22, 2015
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Yuji KATSUMATA, Ken ITO, Takashi NAKAJIMA, Akira SAWADA, Shou OONO, Hiroyuki KOMATSU
  • Publication number: 20150112532
    Abstract: A device for controlling an electric vehicle includes: a feedforward computation unit that is configured to input a motor torque instruction value and compute a first torque target value by feedforward computation; and a motor torque control unit that is configured to control a motor torque according to the first torque target value. The feedforward computation unit includes: a vehicle model which is configured to input the motor torque instruction value to model a characteristic from the motor torque to a drive shaft torsional angular velocity; and a drive shaft torsional angular velocity feedback model which is configured to feed back the drive shaft torsional angular velocity output from the vehicle model to the motor torque instruction value to compute the first torque target value.
    Type: Application
    Filed: March 7, 2013
    Publication date: April 23, 2015
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Shou Oono, Ken Itou