The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 02, 2019
Filed:
Feb. 06, 2018
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Kenji Uchida, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;
Abstract
A drive system shifts an inverter from a gate blocking state to a three phase-on state. When it is determined that electric current flows in a diode of an upper arm of the inverter by referring to a phase current of each phase of a motor, the drive system turns on a switching element of the upper arm and thereby shifts the inverter to an upper arm three phase-on state. When it is determined that electric current flows in a diode of a lower arm of the inverter by referring to the phase current of each phase, the drive system turns on a switching element of the lower arm and thereby shifts the inverter to a lower arm three phase-on state.