Patents by Inventor Tomiji Owada

Tomiji Owada 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: 5997107
    Abstract: According to the present invention, the operating amount of the brake is detected, and the target value of the regenerative torque is set in accordance with the detected operating amount. In the meantime, the change in the detected operating amount along with time is detected, and the rise speed of the regenerative torque is set in accordance with the detected change along with time. The regenerative torque is controlled in accordance with the set target value of the regenerative torque and the set rise speed.
    Type: Grant
    Filed: November 30, 1998
    Date of Patent: December 7, 1999
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Hisamitsu Koga, Tomiji Owada, Masaaki Kato, Nobuyuki Kawamura, Naotake Kumagai, Nobuya Furukawa
  • Patent number: 5879062
    Abstract: According to the present invention, the operating amount of the brake is detected, and the target value of the regenerative torque is set in accordance with the detected operating amount. In the meantime, the change in the detected operating amount along with time is detected, and the rise speed of the regenerative torque is set in accordance with the detected change along with time. The regenerative torque is controlled in accordance with the set target value of the regenerative torque and the set rise speed.
    Type: Grant
    Filed: March 8, 1996
    Date of Patent: March 9, 1999
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Hisamitsu Koga, Tomiji Owada, Masaaki Kato, Nobuyuki Kawamura, Naotake Kumagai, Nobuya Furukawa
  • Patent number: 5839800
    Abstract: A braking control system for an electric automobile combines the use of mechanical braking and regenerative braking by a motor. Namely, a braking control system for the electrical automobile, which permits the combined use of regenerative braking and mechanical braking, is provided with target braking force setting unit (9) for setting a target braking force on the basis of a brake pedal stroke, regeneration control system (4A,5A) for setting a target regenerative braking force on the basis of the brake pedal stroke and then controlling regenerative braking by the motor in accordance with the target regenerative braking force, and mechanical braking control unit (24) for controlling operation of a mechanical brake system (B) in accordance with a difference between said target braking force and an actual braking force determined based on a detected deceleration of a vehicle.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: November 24, 1998
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Hisamitsu Koga, Naotake Kumagai, Tomiji Owada, Nobuya Furukawa, Masaaki Kato, Nobuyuki Kawamura
  • Patent number: 5775784
    Abstract: This invention relates to a braking control system for an electric automobile that runs by driving wheels with an electric motor. The braking control system controls braking of a vehicle through regenerative braking by the motor. Upon application of brakes, the braking control system can make combined use of mechanical braking by a mechanical brake system (11) and regenerative braking by a drive motor (2). The braking control system is designed to control regenerative braking of the motor (2) by a regenerative braking control device (12) so that greater braking force is produced when a failure in the mechanical brake system (11) is detected by a failure detection device (22) than when the mechanical brake system (11) is detected to be normal.
    Type: Grant
    Filed: September 19, 1996
    Date of Patent: July 7, 1998
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Hisamitsu Koga, Naotake Kumagai, Tomiji Owada, Nobuya Furukawa, Masaaki Kato, Nobuyuki Kawamura
  • Patent number: 5561362
    Abstract: A remaining capacity meter is provided for an electric vehicle battery. This meter is suited for use in the detection of a remaining capacity of the electric vehicle battery.
    Type: Grant
    Filed: November 2, 1994
    Date of Patent: October 1, 1996
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Nobuyuki Kawamura, Naotake Kumagai, Tomiji Owada, Hisamitsu Koga, Masaaki Kato, Nobuya Furukawa