Patents by Inventor Toshimichi Monowa

Toshimichi Monowa 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).

  • Control apparatus for an automatic transmission of a vehicle and a control method
    Publication number: 20030224906
    Abstract: A control apparatus and a control method for an automatic transmission, improved over those devised to minimize torque fluctuations which, if left unchecked, give vehicle passengers a disagreeable feeling upon a gear shift. The inventive control apparatus and method, aimed at suppressing such torque fluctuations during a shift of the transmission thereby to improve robustness and provide good shift characteristics, involve recognizing an inertia phase in which the engine speed starts to drop during the shift. At the beginning of the inertia phase, hydraulic pressures supplied to frictional engaging devices in the transmission are kept constant to suppress the torque fluctuations.
    Type: Application
    Filed: February 19, 2003
    Publication date: December 4, 2003
    Applicant: Hitachi, Ltd.
    Inventors: Toshimichi Monowa, Tatsuya Ochi
  • Control apparatus for an automatic transmission of a vehicle and a control method
    Publication number: 20020091035
    Abstract: A control apparatus and a control method for an automatic transmission, improved over those devised to minimize torque fluctuations which, if left unchecked, give vehicle passengers a disagreeable feeling upon a gear shift. The inventive control apparatus and method, aimed at suppressing such torque fluctuations during a shift of the transmission thereby to improve robustness and provide good shift characteristics, involve recognizing an inertia phase in which the engine speed starts to drop during the shift. At the beginning of the inertia phase, hydraulic pressures supplied to frictional engaging devices in the transmission are kept constant to suppress the torque fluctuations.
    Type: Application
    Filed: October 25, 2001
    Publication date: July 11, 2002
    Applicant: Hitachi, Ltd.
    Inventors: Toshimichi Monowa, Tatsuya Ochi
  • Control apparatus for an automatic transmission of a vehicle and a control method
    Patent number: 6328673
    Abstract: A control apparatus and a control method for an automatic transmission, minimizes torque fluctuations which, if left unchecked, give vehicle passengers a disagreeable feeling upon a gear shift. The control apparatus and method suppresses, such torque fluctuations during a shift of the transmission to improve robustness and provide good shift characteristics. An inertia phase is recognized in which the engine speed starts to drop during the shift. At the beginning of the inertia phase, hydraulic pressures supplied to frictional engaging devices in the transmission are kept constant to suppress the torque fluctuations.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: December 11, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Toshimichi Monowa, Tatsuya Ochi