ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,424,866, issued on Sept. 23, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).
"Power conversion system" was invented by Hideki Maeda (Toyota, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power conversion system includes a converter, a current sensor, and a motor ECU. The converter is configured to boost a voltage by operating at a set carrier frequency. The current sensor detects a current flowing through the converter. The motor ECU executes control for protecting the converter. The motor ECU estimates a temperature rise amount of the converter according to at least one of the carrier frequency and a voltage ratio before and after boosti...