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:
Apr. 09, 2024
Filed:
Sep. 29, 2020
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A vehicle-mounted temperature controllerprovided with a compressorhaving a compression partcompressing a refrigerant and a drive motordriving the compression partand using waste heat accompanying driving of the compression partto make the temperature of the refrigerant rise, a blowerblowing air to a heater coreraised in temperature by receiving heat of the refrigerant and blowing air exchanged in heat with the heater coreto the inside of the passenger compartment, and an electronic control unitcontrolling a current phase of the drive motorto a phase by which a ratio of change of an output of the drive motorto a change of the current phase becomes relatively larger to thereby drive the drive motorby an inefficient drive operation when the bloweris in a nondriven state and controlling the current phase to a phase by which a ratio of change of an output of the drive motorto a change of the current phase becomes relatively smaller to thereby drive the drive motorby an inefficiently drive operation when the bloweris in a driven state.