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. 16, 2011
Filed:
Dec. 08, 2006
Koji Aso, Susono, JP;
Kenji Kasashima, Nishikamo-gun, JP;
Rihito Kaneko, Nishikamo-gun, JP;
Masatomo Yoshihara, Toyota, JP;
Kenji Senda, Okazaki, JP;
Yuichi Takemura, Anjo, JP;
Shuhei Oe, Kariya, JP;
Koji Aso, Susono, JP;
Kenji Kasashima, Nishikamo-gun, JP;
Rihito Kaneko, Nishikamo-gun, JP;
Masatomo Yoshihara, Toyota, JP;
Kenji Senda, Okazaki, JP;
Yuichi Takemura, Anjo, JP;
Shuhei Oe, Kariya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Denso Corporation, Kariya-shi, JP;
Nippon Soken, Inc., Nishio-shi, JP;
Abstract
A device and associated method for controlling ignition timing of an internal combustion engine are provided. By comparing a determination value and knock magnitude, determination of knocking is made, and ignition timing is advanced or retarded. The device includes an operation unit that sets a correction amount of the determination value to a value corresponding to a degree of change of the determination value over time. The operation unit calculates, at a first timing, a first value related to an average value of the determination values; and calculates, at a second timing later than the first timing, a second value related to the average value of the determination values. The degree of change of the determination value is calculated as a difference between the first value and the second value.