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:
Aug. 24, 2004
Filed:
May. 14, 2003
Katsuhiko Toyoda, Shizuoka-ken, JP;
Suzuki Motor Corporation, Shizuoka-ken, JP;
Abstract
A heater controller for an oxygen sensor associated with a vehicle engine. The controller includes a start detect section, a restart determination section, and a heater delay control section. The start detect section detects whether the engine is started. The restart determination section determines whether the engine is restarted. The heater delay control section operates the heater to activate after a predetermined delay time, delayed from startup of the engine, that is set according to an engine water temperature. The operation of the heater is executed when the start detect section detects that the engine is started and the restart determination section determines that the engine is not restarted.