| Patent Number |
Title Of Patent |
Date Issued |
| 7607410 |
System and method of controlling fuel delivery during positive valve overlap operation of an eng |
October 27, 2009 |
| An approach is provided for compensating engine fueling during starting conditions in which positive valve overlap is enabled early in the start. In one example, the valve timing is adjusted to increase positive overlap during cold starting conditions, and fuel adjustments are provided t |
| 7552588 |
System and method for HCCI temperature control |
June 30, 2009 |
| A system, comprising of an internal combustion engine having a combustion chamber with a piston located therein, an intake passage coupled to the combustion chamber, wherein the intake passage supplies intake air to the combustion chamber, an adjustable compressor arranged in the intake |
| 7503167 |
Internal combustion engine with multiple combustion modes and fuel vapor purging |
March 17, 2009 |
| An internal combustion engine having a plurality of combustion cylinders and a fuel delivery system. The plurality of combustion cylinders are configured to receive a mixture of gasoline and air and combust such mixture, where some of the combustion cylinders are configured to operate |
| 7503166 |
Gasoline internal combustion engine with dynamic combustion mode allocation |
March 17, 2009 |
| An internal combustion engine having combustion cylinders capable of running on gasoline in either a spark ignition mode or in a homogenous charge compression mode. The allocation of cylinders in each mode is dynamic and may be dynamically controlled and varied during operating of th |
| 7448359 |
Multi-mode internal combustion engine |
November 11, 2008 |
| A method of operating an engine having at least one cylinder, the method comprising of directing a first air stream to an intake valve of the cylinder; directing a second, separate air stream to a second intake valve of the cylinder, said second air stream at a higher temperature tha |
| 7392774 |
Method for controlling valve overlap of a variable valvetrain engine |
July 1, 2008 |
| A method for controlling valve timing for and engine having adjustable valve timing is presented. In one embodiment, the method allows the intake valve timing to be controlled with respect to exhaust valve timing or the method allows the exhaust valve timing to be controlled with res |
| 7213566 |
Engine system and method of control |
May 8, 2007 |
| A method of operating an engine having a hotter and colder airstreams separately controlled to a cylinder is provided. The method controls valve timing during a transition in operating modes to provide improved operation. |
| 7171929 |
Method to estimate variable valve performance degradation |
February 6, 2007 |
| A system comprising of an engine having a first group of cylinders and a second group of cylinders, a first variable valve system in said first group, a second variable valve system in said second group, and a controller for determining degradation of operation of at least one of sai |
