Patents by Inventor Kenichi Saga

Kenichi Saga 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: 9527506
    Abstract: A control device for a hybrid vehicle having an engine, a motor, a clutch and an air conditioner, the engine and the motor being connected to each other via the clutch, the air conditioner having a compressor driven by the engine, has a controller. The hybrid vehicle has an EV mode in which the engine is disconnected from the motor by release of the clutch, and an HEV mode in which the engine rotates together with the motor by engagement of the clutch. The controller is configured to execute a diagnosis of whether the clutch is in a released state during selection of the EV mode. When the HEV mode is selected in response to an operation request for the air conditioner, the controller temporality switches the running mode to the EV mode based on a running history of the hybrid vehicle in a stop state of the hybrid vehicle.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: December 27, 2016
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Naoyasu Ikeda, Kenichi Saga
  • Publication number: 20160244051
    Abstract: A control device for a hybrid vehicle having an engine, a motor, a clutch and an air conditioner, the engine and the motor being connected to each other via the clutch, the air conditioner having a compressor driven by the engine, has a controller. The hybrid vehicle has an EV mode in which the engine is disconnected from the motor by release of the clutch, and an HEV mode in which the engine rotates together with the motor by engagement of the clutch. The controller is configured to execute a diagnosis of whether the clutch is in a released state during selection of the EV mode. When the HEV mode is selected in response to an operation request for the air conditioner, the controller temporality switches the running mode to the EV mode based on a running history of the hybrid vehicle in a stop state of the hybrid vehicle.
    Type: Application
    Filed: September 30, 2013
    Publication date: August 25, 2016
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Naoyasu Ikeda, Kenichi Saga
  • Patent number: 6033041
    Abstract: A regenerative braking control system for an electric vehicle which can be driven by operating an electric motor with electric energy supplied from an electric energy supply source mounted on the vehicle. A control unit (7) is designed so that regenerative braking force of the electric motor (2) is controlled in accordance with an inclination detected by an inclination detecting unit (28). This has made it possible to provide the electric vehicle with improved drivability and running performance.
    Type: Grant
    Filed: August 15, 1997
    Date of Patent: March 7, 2000
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Hisamitsu Koga, Kazunori Handa, Nobuyuki Kawai, Kenichi Saga, Nobuya Furukawa, Akira Maeda, Tomiji Oowada, Hiroaki Yoshida
  • Patent number: 5927829
    Abstract: A brake apparatus for an electric automobile applies brakes to the vehicle to achieve a required amount of braking force by combining regenerative braking force of an electric motor with mechanical braking force produced by a mechanical braking system. The braking force required by a driver is obtained from the depression force applied to a brake pedal, and the maximum regenerative braking force, that can be generated by the motor, is obtained from the rotation speed of the motor. The target mechanical braking force is calculated based on the required braking force and the maximum regenerative braking force. By suitably controlling the pneumatic pressure applied to a booster device provided in the mechanical brake system, the fluid pressure actually applied to brake actuating members is controlled to provide the target mechanical braking force.
    Type: Grant
    Filed: October 3, 1996
    Date of Patent: July 27, 1999
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Kenichi Saga, Hiroaki Yoshida, Akira Maeda
  • Patent number: 5815824
    Abstract: A navigation system suitable for use in an electric automobile, especially hybrid electric automobiles, easily and properly controls charging state of a battery in the electric automobile while making use of characteristic features of the navigation system. The navigation system is mounted on the electric automobile. A destination, to which one wants to drive by the automobile, is inputted as drive plan information. Based on a distance planned to be driven by the automobile to the destination and a remaining capacity of the battery determined by remaining capacity detector, it is determined whether the automobile can reach the destination with the remaining capacity of the battery.
    Type: Grant
    Filed: March 6, 1996
    Date of Patent: September 29, 1998
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Kenichi Saga, Nobuyuki Kawamura