Patents by Inventor Hiroki Tuge

Hiroki Tuge 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: 5644488
    Abstract: In a driving force control apparatus for a 4-wheel driving vehicle, a target driving torque is obtained based on a value determined by subtracting a feedback correction torque corresponding to a slip amount from a reference torque corresponding to a vehicle body speed. Slip is suppressed by a throttle control so that the engine output is reduced to the target driving torque. A retard command is output when the slip amount DVS and a slip rate GDVS are greater than predetermined values to control retarding of an ignition timing of the engine, thereby suppressing an abrupt slip. Further, the two greatest values of slip amounts of each of four wheels DVS.sub.1, DVS.sub.2, DVS.sub.3, and DVS.sub.4 are differentiated to determine slip rates GDVS.sub.1 and GDVS.sub.2, and the smaller of the slip rates GDVS.sub.1 and GDVS.sub.2 is used for control of ignition timing retarding.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: July 1, 1997
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Yoshihito Ito, Hiroki Tuge