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. 17, 2018
Filed:
Nov. 10, 2016
Denso Corporation, Kariya, Aichi-pref., JP;
Yuri Murata, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
An abnormality diagnosis apparatus includes a power consumption estimation section that estimates power consumption of a motor, which is driven by power supplied from a power supply, and power consumption of an auxiliary unit using the power to calculate a power consumption estimate value, a power-supply voltage estimation section that calculates a power-supply voltage estimate value, which is an estimate value of voltage of the power supply, based on the power consumption estimate value and a power-supply current detection value, which is based on a detection value of a power-supply current sensor detecting a current of the power supply, and an abnormality determination section that determines an abnormality of a power-supply voltage sensor detecting a voltage of the power supply, based on a comparison result between the power-supply voltage estimate value and a power-supply voltage detection value, which is based on a detection value of the power-supply voltage sensor.