1. A controller for a direct injection engine in which a fuel is injected into a cylinder directly, the controller comprising:
an exhaust valve control means for performing an exhaust valve early closing control in which a closing timing of an exhaust valve is set before an intake top dead center at least when the engine is at starting andor at cold state in order to raise an inner cylinder temperature; and
a fuel injection control means for performing a pre-fuel injection from a time of closing the exhaust valve to a time of the intake top dead center while the exhaust valve early closing control is performed, and performing a main fuel injection in a suction stroke andor a compression stroke.
2. A controller according to claim 1, further comprising
an ignition control means for performing a pre-ignition corresponding to the pre-fuel injection and performing a main ignition corresponding to the main fuel injection.
3. A controller according to claim 1, wherein
the fuel injection control means varies a fuel injection quantity by the pre-fuel injection based on at least one thermal information of an engine temperature, a coolant temperature, an oil temperature, and an intake air temperature.
4. A controller according to claim 3, wherein
the fuel injection control means increases the fuel injection quantity by the pre-fuel injection as the thermal information decreases.
5. A controller according to claim 1, further comprising
a variable exhaust valve timing control apparatus, wherein
the exhaust valve control means performs the exhaust valve early closing control by controlling the variable exhaust valve timing apparatus in such a manner that the closing timing of the exhaust valve is advanced.
6. A controller according to claim 1, further comprising
a variable exhaust valve lift apparatus, wherein
the exhaust valve control means performs the exhaust valve early closing control by controlling the variable exhaust valve lift apparatus in such a manner that a valve lift of the exhaust valve becomes smaller to reduce an opening period of the exhaust valve.
7. A controller according to claim 1, wherein
the exhaust valve control means varies the closing timing of the exhaust valve in the exhaust valve early closing control based on at least one thermal information of an engine temperature, a coolant temperature, an oil temperature, and an intake air temperature.
8. A controller according to claim 7, wherein
the exhaust valve control means advances the closing timing of the exhaust valve in the exhaust valve early closing control as the thermal information decreases.
9. A controller according to claim 1, further comprising
an intake valve control means for setting an opening timing of an intake valve at the intake top dead center during the exhaust valve early closing control.
10. A controller according to claim 1, further comprising
a main ignition control means for retarding an main ignition timing in accordance with a main fuel injection after the pre-fuel injection relative to an ignition timing after a warm-up of the engine while the exhaust valve early closing control and the pre-fuel injection are performed.
11. A controller for a direct injection engine in which a fuel is injected into a cylinder directly, the controller comprising:
an exhaust valve control means for performing an exhaust valve early closing control in which a closing timing of an exhaust valve is set before an intake top dead center at least when the engine is at starting andor at cold state;
a fuel injection control means for performing a pre-fuel injection from a time of closing the exhaust valve to a time of the intake top dead center while the exhaust valve early closing control is performed, and performing a main fuel injection in a suction stroke andor a compression stroke; and
an ignition control means for retarding an main ignition timing corresponding to the main fuel injection after the pre-fuel injection relative to an ignition timing after a warm-up of the engine white the exhaust valve early closing control and the pre-fuel injection are performed.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A nonlinear editing system for editing a program from one or more high definition sources, comprising:
a random access computer readable medium for storing a plurality of sequences of digital images corresponding to the one or more sources, wherein each of the plurality of sequences is stored in a data file and wherein each image is a high definition image;
an editing interface that allows a user to specify a representation of the program using a sequence of segments of said plurality of sequences of digital images stored on the random access computer readable medium;
a resizer having an input connected to receive high definition images from the random access computer readable medium and having an output for providing standard definition images obtained by resizing the high definition images by reducing a number of lines and by changing aspect ratio;
a standard definition display connected to the output of the resizer that displays the standard definition images output by the resizer;
a high definition display having an input connected to receive high definition images from the random access computer readable medium that displays the high definition images; and
a playback module that receives the representation of the program and causes images of the program to be displayed on the standard definition display and the high definition display at substantially the same time and in real time.
2. A nonlinear editing system for editing a program from one or more high definition sources, comprising:
a random access computer readable medium for storing a plurality of sequences of digital images corresponding to the one or more sources, wherein each of the plurality of sequences is stored in a data file and wherein each image is a high definition image;
an editing interface that allows a user to specify a representation of the program using a sequence of segments of said plurality of sequences of digital images stored on the random access computer readable medium, wherein each segment is defined by a reference to one of the plurality of sequences of digital images and a range in the sequence of digital images;
a resizer having an input connected to receive high definition images from the random access computer readable medium and having an output for providing standard definition images obtained by resizing the high definition images by reducing a number of lines and by changing aspect ratio;
a standard definition display connected to the output of the resizer that displays the standard definition images output by the resizer;
a high definition display having an input connected to receive high definition images from the random access computer readable medium that displays the high definition images; and
a playback module that receives the representation of the program and causes images of the program to be displayed in synchronization and in real time on the standard definition display and the high definition display.