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. 30, 2013
Filed:
Feb. 16, 2010
Yusuke Takasu, Mishima, JP;
Yusuke Takasu, Mishima, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A cylinder pressure estimation device calculates a plurality of candidate values of a possible cylinder pressure at an intake-valve-closing time, calculates a plurality of candidates of a possible movement of the cylinder pressure from the intake-valve-closing time to a post-intake-valve-closing time on the basis of the candidate values of the intake-valve-closing-time cylinder pressure, calculates a movement of the cylinder pressure detected by the cylinder pressure sensor from the intake-valve-closing time to the post-intake-valve-closing time; and calculates the candidates of the cylinder pressure movement with the detected cylinder pressure movement, determining the candidate of the cylinder pressure movement to be deemed to correspond to the detected cylinder pressure movement and determining the candidate value of the intake-valve-closing-time cylinder pressure used for calculating the determined candidate of the cylinder pressure movement.