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:
May. 15, 2007
Filed:
May. 25, 2006
Akiyoshi Negishi, Nishikamo-gun, JP;
Kazuya Kibe, Aichi-gun, JP;
Akiyoshi Negishi, Nishikamo-gun, JP;
Kazuya Kibe, Aichi-gun, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
An intake air pressure Pand a target control value Sunder the condition that the internal combustion engine is in a steady operating state and the condition that the turbocharger has its supercharging efficiency set to a ratio according to the engine operating state are estimated based on engine parameters, and an intake air pressure Pand a target control value Sunder the condition that the internal combustion engine is in the steady operating state and the condition without supercharging by the turbocharger are estimated based on the engine parameters. A target control value Sassociated with an actual intake air pressure Punder the condition that the internal combustion engine is in a transient operating state is calculated by performing interpolation on the target control values S, Sbased on a relation between the intake air pressures P, Pand the actual intake air pressure P