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:
Jul. 14, 1992
Filed:
Dec. 06, 1990
Katsuhiko Kondo, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An electronic engine control system includes a microprocessor, and a variety of sensors for sensing various conditions of the engine. An exhaust gas temperature sensor is mounted to an exhaust manifold to sense the temperature of an exhaust gas discharged from an engine cylinder. A catalytic converter is connected to the exhaust manifold and has a catalyst to clean the exhaust gas. A catalyst temperature sensor is mounted to the catalytic converter to sense the temperature of the catalyst. The microprocessor is operable to analyze information including the exhaust gas temperature and the catalyst temperature so as to determine whether combustion of an air-fuel mixture takes place during engine operation. If the mixture is not combusted, then the microprocessor signals injection valves to stop injection of fuel.