| Patent application number | Description | Published |
|---|
| 20080196693 | MULTIPLE INJECTION BLEND FOR DIRECT INJECTED ENGINES - A fuel injection system for a direct fuel injection engine is provided. The system includes an injection mode module that selects a fuel injection mode to be one of a single injection mode and a dual injection mode during engine operation and a fuel injection command module that commands fuel injection events based on a crankshaft position, the fuel injection mode and a fuel percentage blending schedule. | 08-21-2008 |
| 20080196694 | MULTIPLE INJECTION BLEND FOR DIRECT INJECTED ENGINES - A fuel injection system for a direct fuel injection engine includes an injection mode module. The injection mode module selects a fuel injection mode to be one of a single injection mode and a dual injection mode. A fuel injection command module transitions between the single and dual injection modes by varying the timing of fuel injection events relative to a crankshaft position. | 08-21-2008 |
| 20080223334 | TORQUE BASED FUEL CUT-OFF - An engine control system is provided. The system includes: an engine torque module that estimates torque output based on charge energy; and a cylinder mode module that controls fuel cut-off and adjusts spark timing to the engine based on the torque output. | 09-18-2008 |
| 20090216428 | LATE INTAKE VALVE CLOSING TO IMPROVE COLD STARTABILITY FOR SPARK-IGNITION DIRECT-INJECTION (SIDI) ENGINES - An engine control system includes a cam phaser that introduces a cam phase angle θ between a camshaft intake lobe and an associated crankshaft. An engine control module communicates with the cam phaser to introduce the cam phase angle θ while an engine is being started. The cam phase angle θ is selected such that the camshaft intake lobe opens an intake valve during at least a portion of a compression stroke of a cylinder that is associated with the camshaft intake lobe. | 08-27-2009 |
| 20100305830 | CONTROL SYSTEMS AND METHODS FOR FUEL AND SECONDARY AIR INJECTION - An engine control system comprises an actuator control module and a tertiary injection module. The actuator control module provides secondary air to an exhaust system when a catalyst light-off mode is enabled and provides first and second injections of fuel to a cylinder during each engine cycle while the catalyst light-off mode is enabled. The tertiary injection module selectively provides a third injection of fuel to the cylinder during an exhaust phase of each engine cycle while the catalyst light-off mode is enabled. The first, second, and third injections are each separated by a period of time. | 12-02-2010 |
| 20100319315 | DETECTING PARTICULATE MATTER LOAD DENSITY WITHIN A PARTICULATE FILTER - A control system includes a heater control module and a particulate matter (PM) load module. The heater control module selectively activates an electric heater to initiate regeneration in a zone of a particulate filter and deactivates the electric heater after the regeneration is initiated. The regeneration continues along a length of the particulate filter after the electric heater is deactivated. The PM load module determines a PM load based on an outlet temperature of the particulate filter after the regeneration is initiated. | 12-23-2010 |
| 20100326403 | ELECTRICALLY HEATED PARTICULATE FILTER REGENERATION DURING ENGINE START/STOP OPERATION - A control system comprises a combustion control module and a regeneration control module. The combustion control module controls operation of a vehicle in a first mode during which a combustion engine is off and in a second mode during which the combustion engine is on. The regeneration control module is in communication with the combustion control module and activates an electric heater during the first mode to heat an inlet of a particulate matter (PM) filter. Exhaust gas produced by the combustion engine enters the inlet and initiates a regeneration cycle of the PM filter in the second mode. | 12-30-2010 |
| 20110162602 | VARIABLE VALVE LIFT CONTROL SYSTEMS AND METHODS - An intake valve control system comprises a torque control module and an opening control module. The torque control module controls torque output by an engine based on a torque output target. The opening control module opens intake valves of M cylinders of the engine to a first lift position when the torque output target is less than a torque threshold and selectively transitions the intake valves of N of the M cylinders to a second lift position. N and M are integers greater than zero, and N is less than M. The second lift position is open further than the first lift position. | 07-07-2011 |
