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. 01, 2012
Filed:
Mar. 31, 2008
Akira Eiraku, Sunto-gun, JP;
Jouji Yamaguchi, Anjo, JP;
Akira Eiraku, Sunto-gun, JP;
Jouji Yamaguchi, Anjo, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Denso Corporation, Kariya-shi, JP;
Abstract
A control system of an internal combustion engine changing an operating timing of a valve in an internal combustion engine where a valve drive cam () and a pump drive cam () are both provided on a valve camshaft () is provided. That control system has a device inhibiting the operating timing from being returned in a direction reverse to the direction of the target operating timing during change of the operating timing. Further, in the control system, the relative rotational phases of the valve drive cam and the pump drive cam are set considering utilization of the composite reaction torque of the valve operation drive reaction torque and the fuel pump drive reaction torque acting on the valve camshaft for changing the operating timing in the direction of the target operating timing.