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:
Jun. 01, 2004
Filed:
Oct. 05, 2001
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
An engine speed control unit of an internal combustion engine for controlling an engine speed so that it can reach a target value, changes the engine speed so that it can reach a target value in a period of time from the completion of the initial combustion of the engine starting to the idling steady state. The after-start engine speed peak actual value “gnepk”, which is an engine speed in the idling state in a predetermined period of time from the start of the engine, is calculated, and the after-start engine speed peak target value “tnepk” is read in from the map, and the ratio “rnepk” is found. When the ratio “rnepk” is out of the target range, it can be considered that the burning state is bad.