ALEXANDRIA, Va., April 21 -- United States Patent no. 12,606,149, issued on April 21, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).
"Drive force control system for electric vehicle" was invented by Yoshito Sekiguchi (Kariya, Japan), Atsushi Tabata (Okazaki, Japan) and Koichi Okuda (Toyota, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A drive force control system for an electric vehicle configured to prevent a temperature rise in a motor to a restrictive temperature, and to ensure running stability of the electric vehicle when the temperature of the motor reaches the restrictive temperature. The control system comprises: an upper limit torque determiner that employs a torque of the first motor ...