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:
Feb. 17, 2009
Filed:
Mar. 28, 2003
Yuji Yasui, Wako, JP;
Yoshihisa Iwaki, Wako, JP;
Yuji Yasui, Wako, JP;
Yoshihisa Iwaki, Wako, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A control input (DUT) for controlling a heater () which heats an active element () of an exhaust gas sensor () includes at least one of another component depending on the difference between temperature data of the active element () and a target temperature, a component depending on the target temperature, and a component depending on the temperature data of the active element (). The control input is determined by an optimum control algorithm. A component depending on the temperature of an exhaust gas and the component depending on the target temperature are determined based on a predictive control algorithm. The temperature of the active element () of the exhaust gas sensor () is thus controlled stably at a desired temperature.