Patents by Inventor Tomoyasu KIMURA

Tomoyasu KIMURA 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).

  • Patent number: 12043246
    Abstract: While a vehicle is traveling in an automatic driving mode, an auto-driving oil pressure changing unit makes the engagement pressure of hydraulic oil supplied to a release-side engagement device to be released during a downshift of a stepwise shifting unit, higher than the engagement pressure set during traveling in a manual driving mode, so that retraction of the acceleration due to a drop of drive torque during the downshift is reduced. At this time, an auto-driving rotating machine controller makes drive-side MG2 torque generated from a second rotating machine, larger than that generated during traveling in the manual driving mode, so as to speed up the progress of the downshift, and prevent retraction of the acceleration from being prolonged.
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: July 23, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinichi Sasade, Tooru Matsubara, Hiromasa Tatsushiro, Daisuke Suyama, Tomoyasu Kimura
  • Publication number: 20220118967
    Abstract: While a vehicle is traveling in an automatic driving mode, an auto-driving oil pressure changing unit makes the engagement pressure of hydraulic oil supplied to a release-side engagement device to be released during a downshift of a stepwise shifting unit, higher than the engagement pressure set during traveling in a manual driving mode, so that retraction of the acceleration due to a drop of drive torque during the downshift is reduced. At this time, an auto-driving rotating machine controller makes drive-side MG2 torque generated from a second rotating machine, larger than that generated during traveling in the manual driving mode, so as to speed up the progress of the downshift, and prevent retraction of the acceleration from being prolonged.
    Type: Application
    Filed: October 7, 2021
    Publication date: April 21, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinichi SASADE, Tooru MATSUBARA, Hiromasa TATSUSHIRO, Daisuke SUYAMA, Tomoyasu KIMURA
  • Patent number: 11247658
    Abstract: A control apparatus for a vehicle provided, with a step-variable transmission, includes: a feedback control portion; an input torque resetting control portion; a target input torque setting portion operated upon an increase of the accelerator pedal operation amount in the process of the shift-down action in a power-off state of the vehicle, to restrict an amount of increase of the input torque target value with respect to an amount of increase of an operator-required input torque value, so as to keep the target value not larger than an upper limit value until termination of the input torque resetting control; and an actual input torque increasing portion operated upon the increase of the accelerator pedal operation amount prior to initiation of the inertia phase, to implement an input torque increasing control to control the input torque so as to be larger than the target value, prior to the inertia phase initiation.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: February 15, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, Aisin AW CO., Ltd.
    Inventors: Kenta Kumazaki, Tooru Matsubara, Daisuke Suyama, Mitsuru Maeda, Tomoyasu Kimura
  • Publication number: 20200198616
    Abstract: A control apparatus for a vehicle provided, with a step-variable transmission, includes: a feedback control portion; an input torque resetting control portion; a target input torque setting portion operated upon an increase of the accelerator pedal operation amount in the process of the shift-down action in a power-off state of the vehicle, to restrict an amount of increase of the input torque target value with respect to an amount of increase of an operator-required input torque value, so as to keep the target value not larger than an upper limit value until termination of the input torque resetting control; and an actual input torque increasing portion operated upon the increase of the accelerator pedal operation amount prior to initiation of the inertia phase, to implement an input torque increasing control to control the input torque so as to be larger than the target value, prior to the inertia phase initiation.
    Type: Application
    Filed: December 18, 2019
    Publication date: June 25, 2020
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, Aisin AW CO., Ltd.
    Inventors: Kenta KUMAZAKI, Tooru MATSUBARA, Daisuke SUYAMA, Mitsuru MAEDA, Tomoyasu KIMURA