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:
Nov. 17, 1992
Filed:
Sep. 12, 1991
Katsuhiko Toyoda, Shizuoka, JP;
Masahiro Hosoi, Shizuoka, JP;
Suzuki Motor Corporation, Shizuoka, JP;
Abstract
An apparatus for detecting a flameout in an internal combustion engine includes a rotational speed sensor for detecting engine rotational speed and for generating an electrical signal corresponding to the engine rotational speed. A sensor is provided for detecting the air-fuel ratio of the engine exhaust gas and for generating an output electrical signal corresponding to the air-fuel ratio. An engine load sensor arrangement detects a load state of the internal combustion engine and generates an output electrical signal corresponding to the load state. A control arrangement is provided for comparing the output signal from the exhaust gas sensor with the output signal from the engine load sensor arrangement when the exhaust gas sensor indicates a lean mixture. The control arrangement uses this comparison information to determine whether a flameout has occurred. The control arrangement is also capable of accommodating a response or delay time associated with the exhaust gas sensor.