Patents by Inventor Osamu Nakakita

Osamu Nakakita 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: 6116704
    Abstract: A regenerative braking apparatus for a battery operated vehicle includes rotation direction detection devices for detecting the rotation directions of respective axles of two front wheels, a current direction judgment device for judging respective field current directions of two propulsion motors based on respective outputs from the rotation direction detection devices, and a current direction control device for controlling the field current direction of the propulsion motors based on the output from the current direction judgment device. In this way, even when close to the steering angle for inner wheel stop turning, concern for external action rotation of the propulsion motor for driving the inner wheel is eliminated, enabling control of regeneration at the time of turning to be carried out with good efficiency.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: September 12, 2000
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Osamu Nakakita, Kazuya Fukuda