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, 2007
Filed:
Jun. 06, 2006
Hiroshi Kuzuyama, Kariya, JP;
Hiroshi Kuzuyama, Kariya, JP;
Kabushiki Kaisha Toyota Jidoshokki, Kariya-shi, JP;
Abstract
An engine includes cylinders, a sensor for detecting information related to combustion states of the cylinders. Each cylinder is provided with an ignition device, an intake valve, and an exhaust valve. The engine also includes a control apparatus that obtains the information from the sensor. Based on the information from the sensor, the control apparatus identifies a cylinder of the most violent combustion. The control apparatus controls at least one of the valve timing of the intake valves, the valve timing of the exhaust valves, and a fuel injection amount to the cylinders, thereby suppressing the combustion of all the cylinders, such that the combustion state of the identified cylinder becomes an appropriate combustion state. As for a cylinder the combustion state of which is out of a predetermined range and is a state causing misfire, the control apparatus selectively activates the corresponding ignition device to perform assisted ignition. This configuration reduces variation in the combustion states among the cylinders.