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. 12, 2022
Filed:
Mar. 15, 2018
Denso Corporation, Kariya, JP;
Mazda Motor Corporation, Hiroshima-pref., JP;
Tooru Matsumoto, Kariya, JP;
Katsuhide Akimoto, Kariya, JP;
Takahito Masuko, Kariya, JP;
Keita Takagi, Kariya, JP;
Tatsuhiro Ito, Hiroshima, JP;
Yuki Sato, Hiroshima, JP;
Ryo Teramoto, Hiroshima-ken., JP;
Takafumi Nishio, Otake, JP;
DENSO CORPORATION, Kariya, JP;
MAZDA MOTOR CORPORATION, Hiroshima-Pref., JP;
Abstract
The control section of a control apparatus executes a first control for operating a voltage application section such as to cause a current to flow in a first direction through a gas sensor in a first period, and a second control for operating the voltage application section such as to cause a current to flow in a second direction, opposite to the first direction, through the gas sensor in a second period. The control apparatus changes the length of at least one of the first period and the second period based on a comparison between a first measurement value, which is the absolute value of a value measured by a sweep measurement section during execution of the first control, and a second measurement value, which is the absolute value of a value measured by the sweep measurement section during execution of the second control.