Patents by Inventor Makoto Nakayashiki

Makoto Nakayashiki 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).

  • Automatic gear control device
    Patent number: 7769516
    Abstract: An ECU executes a program including determining whether a mode is a neutral control execution mode, determining whether the mode is a neutral control return mode, detecting a proceeding state of the neutral control return mode when an accelerator is activated during the neutral control return mode, and inhibiting slip start when the mode is in an initial stage of the neutral control return mode.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: August 3, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takahiro Kondo, Makoto Nakayashiki, Tomohiro Asami, Shun Minaki
  • Neutral control apparatus and method for a vehicle with an automatic transmission
    Patent number: 7543693
    Abstract: The temperature of a friction engagement device of an automatic transmission is estimated, and the target speed ratio of a torque converter increases as the estimated temperature of the friction engagement device increases. The engagement load of the friction engagement device is then controlled so as to achieve the increased target speed ratio of the torque converter.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: June 9, 2009
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Makoto Nakayashiki, Kazuyuki Watanabe
  • Automatic Gear Control Device
    Publication number: 20080172161
    Abstract: An ECU executes a program including determining whether a mode is a neutral control execution mode, determining whether the mode is a neutral control return mode, detecting a proceeding state of the neutral control return mode when an accelerator is activated during the neutral control return mode, and inhibiting slip start when the mode is in an initial stage of the neutral control return mode.
    Type: Application
    Filed: March 9, 2006
    Publication date: July 17, 2008
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takahiro Kondo, Makoto Nakayashiki, Tomohiro Asami, Shun Minaki
  • Control apparatus and method for vehicular automatic transmission
    Patent number: 7189187
    Abstract: A control apparatus for a vehicular automatic transmission includes a control portion that executes a neutral control in which the control portion places the automatic transmission in a neutral state by reducing an application load on a frictional apply device inside the automatic transmission when the vehicle is stopped. The control portion ends the neutral control when a torque transmitted to the frictional apply device has been continually equal to, or greater than, a predetermined value for a consecutive predetermined of time. As a result, by considering the torque transmitted to the frictional apply device in addition to the continuation time of the neutral control, it is possible to more precisely grasp the state of the frictional apply device. In other words, it is possible to execute, as quickly as possible, neutral control for an extended period of time while ensuring durability of the frictional apply device.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: March 13, 2007
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Makoto Nakayashiki, Tooru Matsubara, Takahiro Sakai, Yoshio Hasegawa, Yoshikazu Tanaka
  • Neutral control apparatus and method for a vehicle with an automatic transmission
    Publication number: 20060293146
    Abstract: The temperature of a friction engagement device of an automatic transmission is estimated, and the target speed ratio of a torque converter increases as the estimated temperature of the friction engagement device increases. The engagement load of the friction engagement device is then controlled so as to achieve the increased target speed ratio of the torque converter.
    Type: Application
    Filed: June 8, 2006
    Publication date: December 28, 2006
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Makoto Nakayashiki, Kazuyuki Watanabe
  • Control apparatus and method for vehicular automatic transmission
    Publication number: 20040242360
    Abstract: A control apparatus for a vehicular automatic transmission includes a control portion that executes a neutral control in which the control portion places the automatic transmission in a neutral state by reducing an application load on a frictional apply device inside the automatic transmission when the vehicle is stopped. The control portion ends the neutral control when a torque transmitted to the frictional apply device has been continually equal to, or greater than, a predetermined value for a consecutive predetermined of time. As a result, by considering the torque transmitted to the frictional apply device in addition to the continuation time of the neutral control, it is possible to more precisely grasp the state of the frictional apply device. In other words, it is possible to execute, as quickly as possible, neutral control for an extended period of time while ensuring durability of the frictional apply device.
    Type: Application
    Filed: May 20, 2004
    Publication date: December 2, 2004
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Makoto Nakayashiki, Tooru Matsubara, Takahiro Sakai, Yoshio Hasegawa, Yoshikazu Tanaka