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.

Date of Patent:
Oct. 11, 2011

Filed:

Aug. 09, 2007
Applicants:

Kenichi Morizane, Hiroshima, JP;

Hideya Horii, Hiroshima, JP;

Inventors:

Kenichi Morizane, Hiroshima, JP;

Hideya Horii, Hiroshima, JP;

Assignee:

Mazda Motor Corporation, Hiroshima, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

There is provided a method of controlling an engine system having an internal combustion engine, a supercharger arranged in an intake air passage of said internal combustion engine and a motor capable of driving the supercharger. The method comprises, driving the motor to operate the supercharger to boost airflow inducted into the internal combustion engine when the internal combustion engine is in operation. The method further comprises driving the motor to determine a state of the supercharger when the internal combustion engine is stopped and indicating the determined state of the supercharger. According to the method, by driving the motor of the supercharger to detect a state of the supercharger when the internal combustion engine is stopped, the state of the supercharger can be more accurately detected because the condition is most stable.


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