ALEXANDRIA, Va., March 12 -- United States Patent no. 12,246,695, issued on March 11, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).
"Controller for hybrid electric vehicle" was invented by Mitsuru Yamaguchi (Ama, Japan) and Masayuki Baba (Toyota, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "During BEV running that a vehicle is caused to run by using power of an electric motor, a determination threshold for determining whether to start an engine is corrected by estimating a shortage of driving force in advance based on a gear stage of an automatic transmission and a turbine rotation speed (that is, an AT input shaft rotation speed of the automatic transmission). Therefore, the engine is started...