US Patent Issued to Hitachi Astemo on Feb. 24 for "Inverter control device, hybrid system, electromechanical integrated unit, electric vehicle system, and inverter control method" (Japanese Inventors)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,562,657, issued on Feb. 24, was assigned to Hitachi Astemo Ltd. (Hitachinaka, Japan).

"Inverter control device, hybrid system, electromechanical integrated unit, electric vehicle system, and inverter control method" was invented by Takafumi Hara (Tokyo), Takaya Tsukagoshi (Hitachinaka, Japan), Katsuhiro Hoshino (Hitachinaka, Japan) and Shigehisa Aoyagi (Hitachinaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An inverter control device includes: a carrier wave generation unit that generates a carrier wave; a carrier frequency adjustment unit that adjusts a frequency of the carrier wave; and a PWM control unit that performs pulse width modulatio...