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:
Oct. 22, 2024
Filed:
Oct. 20, 2020
Applicant:
Mitsubishi Heavy Industries Thermal Systems, Ltd., Tokyo, JP;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 1/02 (2006.01); B60H 1/32 (2006.01); H02P 29/024 (2016.01);
U.S. Cl.
CPC ...
H02P 29/024 (2013.01); B60H 1/3205 (2013.01);
Abstract
Provided is a method for determining the generation source of ripple voltage when abnormal ripple voltage is detected. The control device is for an electric compressor, the control device comprising: a detection unit that detects ripple voltage; a judgment unit that judges whether the ripple voltage is abnormal based on the value of the ripple voltage; and a cause determination unit that determines whether the cause of the abnormality is the electric compressor or some other external device, based on the control result of the electric compressor.