Patents by Inventor Shigeyoshi Okunishi

Shigeyoshi Okunishi 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: 12202464
    Abstract: A control system of a vehicle includes a driving source configured to generate a driving force of the vehicle and transmit the driving force to driving wheels, without intervention of a torque converter, a transmission provided between the driving source and the driving wheels, a friction engagement element used for starting the vehicle, the friction engagement element being provided between the driving source and the driving wheels so as to be engageable and disengageable, and a controller configured to control an engaging force of the friction engagement element to adjust the driving force transmitted from the driving source to the driving wheels. The controller sets a target acceleration of the vehicle based on a rotational speed difference between an input rotational speed and an output rotational speed of the transmission, and controls the engaging force based on the target acceleration.
    Type: Grant
    Filed: April 16, 2024
    Date of Patent: January 21, 2025
    Assignee: Mazda Motor Corporation
    Inventors: Yuki Tsuchitori, Manabu Sasahara, Shigeyoshi Okunishi, Hiroki Hanae
  • Publication number: 20240359680
    Abstract: A control system of a vehicle includes a driving source configured to generate a driving force of the vehicle and transmit the driving force to driving wheels, without intervention of a torque converter, a transmission provided between the driving source and the driving wheels, a friction engagement element used for starting the vehicle, the friction engagement element being provided between the driving source and the driving wheels so as to be engageable and disengageable, and a controller configured to control an engaging force of the friction engagement element to adjust the driving force transmitted from the driving source to the driving wheels. The controller sets a target acceleration of the vehicle based on a rotational speed difference between an input rotational speed and an output rotational speed of the transmission, and controls the engaging force based on the target acceleration.
    Type: Application
    Filed: April 16, 2024
    Publication date: October 31, 2024
    Inventors: Yuki Tsuchitori, Manabu Sasahara, Shigeyoshi Okunishi, Hiroki Hanae