What is claimed is:
1. A system for providing dynamic definition of an application object, comprising:
means for providing an application dictionary that contains information about the application object;
means for providing a class dictionary entry that defines meta information about the application object; and
means for modifying the application dictionary to modify a definition of the application object.
2. The system of claim 1, further comprising:
means for determining the default location of the application object.
3. The system of claim 2, further comprising:
means for validating the application dictionary modification.
4. The system of claim 3, further comprising:
means for saving the modified definition of the application object if the application dictionary modification is validated.
5. The system of claim 1, further comprising:
means for defining a list of allowable attributes to be changed to modify the definition of the application object.
6. A method for providing dynamic definition of an application object, the method comprising steps of:
providing an application dictionary that contains information about the application object;
providing a class dictionary entry that defines meta information about the application object; and
modifying the application dictionary to modify a definition of the application object.
7. The method of claim 6, further comprising the step of:
determining the default location of the application object.
8. The method of claim 6, further comprising the step of:
validating the application dictionary modification.
9. The method of claim 8, further comprising the step of:
saving the modified definition of the application object if the application dictionary modification is validated.
10. The method of claim 6, further comprising the step of:
defining a list of allowable attributes to be changed to modify the definition of the application object.
11. A computer readable medium for providing dynamic definition of an application object, comprising:
logic for providing an application dictionary that contains information about the application object;
logic for providing a class dictionary entry that defines meta information about the application object; and
logic for modifying the application dictionary to modify a definition of the application object.
12. The computer readable medium of claim 11, further comprising:
logic for determining the default location of the application object.
13. The computer readable medium of claim 11, further comprising:
logic for validating the application dictionary modification.
14. The computer readable medium of claim 13, further comprising:
logic for saving the modified definition of the application object if the application dictionary modification is validated.
15. The computer readable medium of claim 11, further comprising:
logic for defining a list of allowable attributes to be changed to modify the definition of the application object.
16. A system for providing dynamic definition of an application object, comprising:
an application dictionary that contains information about the application object;
a class dictionary entry in the application dictionary that defines meta information about the application object; and
a modifier that modifies the application dictionary to modify a definition of the application object.
17. The system of claim 16, wherein the application dictionary determines the default location of the application object.
18. The system of claim 16, wherein the class dictionary entry further comprises:
a validation mechanism that validates the application dictionary modification.
19. The system of claim 18, wherein the validation mechanism further comprises:
a save mechanism that saves the modified definition of the application object if the application dictionary modification is validated.
20. The system of claim 19, further comprising:
a list of allowable attributes to be changed to modify the definition of the application object.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for controlling a transition between operating modes of a direct fuel injected Otto cycle engine, comprising:
adjusting an ignition angle in a retarded ignition direction in order to reduce a torque jump; and
injecting fuel into a cylinder of the engine in the form of multiple injections, wherein a quantity of the injected fuel is injected into the engine during a compression phase of the Otto engine cycle and when the Otto cycle engine is transitioning between a normal operation mode and an overrun fuel cut-off operation mode of the engine.
2. The method as claimed in claim 1, wherein the ignition angle is the crank shaft angle of rotation at the time an ignition signal is sent to a spark plug.
3. The method as claimed in claim 1, wherein the entire fuel quantity is injected in the compression phase.
4. The method as claimed in claim 1, wherein an engine intake air mass is reduced and then the ignition angle is decreased to a first minimum value which is predetermined for a reduced-air operating mode.
5. The method as claimed in claim 4, wherein a partial quantity of the injected fuel is injected during the compression phase after the first minimum value has been reached.
6. The method as claimed in claim 4, wherein the predetermined first minimum ignition angle provides stable combustion of a fuel-air mixture of the engine.
7. The method as claimed in claim 4, wherein the ignition angle is decreased to a second minimum value that is less than the first minimum value, the second minimum value being predetermined for the fuel injection.
8. The method as claimed in claim 7, wherein after the second minimum value has been attained, the fuel injection is cut off and the engine operation mode is switched from the normal operation mode to the overrun fuel cut-off operation mode.
9. The method as claimed in claim 8, wherein a partial quantity of the fuel is initially injected during the compression phase in order to return to the normal operation mode.
10. The method as claimed in claim 9, wherein the ignition angle is adjusted in the advanced ignition direction in order to increase the torque output of the engine.
11. The method as claimed in claim 10, wherein the switchover of the injection process from the compression phase to the intake phase occurs when a desired torque is attained.
12. A engine mode switchover apparatus that controls a transition operation of an Otto engine, comprising:
a fuel injector that injects fuel into a cylinder of the engine;
a device that determines a torque output of the engine;
a device that measures an ignition angle;
a device that stores a plurality of engine parameters;
a device that adjusts the ignition angle and an intake air mass of the engine; and
a device that controls the fuel injection having a control program, the control program adapted to reduce the ignition angle and subsequently inject the fuel into the cylinder during the compression phase of the engine and when the engine is transitioning between a normal operation mode and an overrun fuel cut-off operation and a subsequent return to normal operation of the engine.
13. The apparatus as claimed in claim 12, wherein the fuel is injected in a plurality of partial quantities.
14. The apparatus as claimed in claim 12, wherein the fuel injector injects the fuel directly into the cylinder.
15. The apparatus as claimed in claim 12, wherein the torque output of the engine is determined by a torque model.
16. An engine management system that controls a transition operation of an Otto engine, comprising:
a device for determining an angle of rotation of a crank shaft of the engine;
a throttle valve actuator;
an engine speed sensor;
a fuel injector that injects fuel directly into a cylinder of the engine;
a device that determines a torque output of the engine;
a device for measuring an ignition angle;
a device for storing a plurality of engine parameters;
a device for adjusting the ignition angle and an intake air mass of the engine; and
a device that controls the fuel injection having a control program, the control program adapted to reduce the ignition angle and subsequently inject the fuel into the cylinder during the compression phase of the engine and when the engine is transitioning between a normal operation and an overrun fuel cut-off operation mode and a subsequent return to normal operation mode of the engine.
17. The apparatus as claimed in claim 16, wherein the fuel is injected in a plurality of partial quantities.
18. The apparatus as claimed in claim 16, wherein the fuel injector injects the fuel directly into the cylinder.