ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,476,574, issued on Nov. 18, was assigned to TOYOTA JIDOSHA K.K. (Aichi-Ken, Japan).
"Drive apparatus" was invented by Yu Nito (Toyota, Japan), Tatsuya Nishino (Toyota, Japan), Kazuki Minami (Toyota, Japan) and Junichiro Yasui (Seto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A drive apparatus includes: (a) an electric motor including a rotor and a stator that has a stator core and a stator coil; (b) a gear connected to a shaft of the rotor; and (c) a control device configured to control a drive current flowing through the stator core. The gear has a number of teeth which makes an order of a fluctuation of a meshing torque generated in the gear...