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. 28, 2007
Filed:
Apr. 19, 2005
Internal combustion engine knock determination device and ignition control system including the same
Kenji Kasashima, Aichi-ken, JP;
Rihito Kaneko, Aichi-ken, JP;
Kenji Senda, Okazaki, JP;
Shigeru Kamio, Nagoya, JP;
Masaomi Inoue, Kariya, JP;
Yuuichi Takemura, Anjo, JP;
Kenji Kasashima, Aichi-ken, JP;
Rihito Kaneko, Aichi-ken, JP;
Kenji Senda, Okazaki, JP;
Shigeru Kamio, Nagoya, JP;
Masaomi Inoue, Kariya, JP;
Yuuichi Takemura, Anjo, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Denso Corporation, Kariya, JP;
Abstract
An engine ECU executes a program including the steps of: detecting a waveform of vibration of an engine at a predetermined knock detection gate; determining whether a detected vibration's waveform and a knock waveform model stored in memory match within a predetermined range; if the model and the detected vibration's waveform match within the predetermined range, determining that the engine knocks; and if the model and the detected vibration's waveform do not match within the predetermined range, then determining that the engine does not knock.