1. A spark ignition engine system for which fuel is introduced into the engine from a first source and a liquid is separately introduced into the engine from a second source by direct injection comprising:
a spark ignition engine;
a first means for introducing the fuel from the first source into the engine;
a second means for direct injection of the liquid from the second source into the engine, wherein during part of the engine operating time, the engine receives both the fuel from the first source and the liquid that is directly injected from the second source; and
a fuel management system which varies the relative amount of the liquid from the second source that is introduced into the engine so as to prevent knock, wherein the fuel management system employs information from a knock detector and uses closed loop control to control the amount of directly injected liquid from the second source; and
wherein the engine is operated with a substantially stoichiometric fuelair ratio.
2. The engine system of claim 1, wherein the engine is turbocharged or supercharged.
3. The engine system of claim 1 or 2, wherein the liquid from the second source is alcohol.
4. The engine system of claim 3, wherein the alcohol is methanol.
5. The engine system of claim 3, wherein the alcohol is ethanol.
6. The engine system of claim 1 or 2, wherein the liquid from the second source is an alcohol-water mixture.
7. The engine system of claim 1 or 2, wherein the liquid from the second source includes water.
8. The engine system of claim 1 or 2, wherein the fuel from the first source is gasoline and the liquid from the second source includes water.
9. The engine system of claim 1 or 2, wherein the liquid from the second source is injected so as to result in a non-uniform distribution in the engine cylinder.
10. The engine system of claim 9, wherein the liquid from the second source is injected so as to be more concentrated near the periphery of the engine cylinder, and
wherein the liquid from the second source includes alcohol, and
wherein the alcohol energy fraction is sufficiently high to prevent knock but the alcohol energy fraction is reduced as compared to the situation using a uniform distribution.
11. The engine system of claim 1 or 2, wherein the fuel management system employs a microprocessor for control of the relative amount of liquid from the second source that is directly injected into the engine using information from a knock sensor, and
wherein the relative amount of the liquid from the second source increases with increasing torque, and
wherein the fuel management system minimizes the amount of directly injected liquid from the second source that is used over a drive cycle.
12. The engine system of claim 11 further including open loop control with a look up table.
13. The engine system of claims 1 or 2, wherein spark retard is used and is varied according to the consumption of the liquid from the second tank.
14. A spark ignition engine system into which fuel is introduced into the engine from a first source using a first fuel injector and a liquid from a second source is introduced into the engine using a second fuel injector comprising:
a spark ignition engine;
a first fuel injector for introducing fuel into the engine from the first source;
a second fuel injector for introducing the liquid from the second source into the engine wherein during part of the engine operating time, the engine receives both the fuel from the first source and the liquid from the second source; and
a fuel management system which varies the relative amount of the liquid from the second source that is introduced into the engine so as to prevent knock, wherein the fuel management system uses closed loop control to control the amount of liquid from the second source and employs information from a knock detector, and
wherein the engine is operated with a substantially stoichiometric fuelair ratio.
15. The engine system of claim 14, wherein the fuel from the first source is port fuel injected.
16. The engine system of claim 14 or 15, wherein the liquid from the second source is alcohol.
17. The engine system of claim 16, wherein the alcohol is methanol.
18. The engine system of claim 16, wherein the alcohol is ethanol.
19. The engine system of claims 14 or 15, wherein the liquid from the second source is an alcohol-water mixture.
20. The engine system of claims 14 or 15, wherein the liquid from the second source includes water.
21. The engine system of claims 14 or 15, wherein the fuel from the first source is gasoline and the liquid from the second source includes water.
22. The engine system of claims 14 or 15, wherein the fuel management system employs a microprocessor for control of the relative amount of liquid from the second source that is directly injected into the engine using information from a knock sensor, and wherein
the relative amount of liquid from the second source increases with increasing torque, and
wherein the fuel management system minimizes the amount of directly injected liquid from the second source that is used over a drive cycle.
23. The engine system of claim 22 further including open loop control with a look up table.
24. The engine system of claims 14 or 15, wherein spark retard is used and is varied according to the consumption of the liquid from the second tank.
25. The engine system of claims 14 or 15, wherein the engine is turbocharged.
26. The engine system of claims 14 or 15, wherein the engine is supercharged.
27. A turbocharged or supercharged spark ignition engine system which uses both port fuel injection of gasoline from a first source and direct fuel injection of alcohol from a second source comprising:
a spark ignition engine;
a turbocharger or supercharger;
means for port fuel injection of gasoline from the first source;
means for direct fuel injection of alcohol from the second source, wherein during part of the engine operating time, the engine is fueled both by gasoline that is port fuel injected and alcohol that is directly injected; and
a fuel management system which increases the relative amount of alcohol in the engine with increasing torque so as to prevent knock, wherein the fuel management system employs information from a knock detector and uses closed loop control to control the amount of directly injected alcohol, and
wherein the engine is operated with a substantially stoichiometric fuelair ratio.
28. The engine system of claim 27, wherein the alcohol is methanol.
29. The engine system of claim 27, wherein the alcohol is ethanol.
30. The engine system of claim 27, wherein the alcohol is mixed with water.
31. The engine system of claim 27, wherein the fuel management system employs a microprocessor for control of the relative amount of alcohol from the second source that is directly injected into the engine using information from a knock sensor.
32. The engine system of claim 31, wherein the fuel management system minimizes the amount of directly injected alcohol from the second source that is used over a drive cycle.
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. An information processing apparatus communicatable with at least one device or apparatus having a first interface and a second interface, comprising:
a first communication setting-executing device that executes first communication setting for enabling the device or apparatus to be controlled via the first interface;
a second communication setting-executing device that communicates with the device or apparatus via the first interface after execution of the first communication setting, to execute second communication setting for enabling the information processing apparatus to communicate with the device or apparatus via the second interface; and
a deletion device that deletes information set by the first communication setting, after execution of the second communication setting.
2. An information processing apparatus as claimed in claim 1, further comprising a display device that displays a display screen for prompting a user to confirm whether the second communication setting is to be executed after execution of the first communication setting by said first communication setting-executing device.
3. An information processing apparatus as claimed in claim 1, wherein said deletion device deletes an icon corresponding to the first communication setting after execution of the second communication setting.
4. A method of controlling an information processing apparatus communicatable with at least one device or apparatus having a first interface and a second interface, comprising:
an installation step of installing a device driver as software for enabling the device or apparatus to be controlled via the first interface, in the information processing apparatus;
a setting processing step of communicating with the device or apparatus via the first interface after installation of the device driver, to execute setting processing for enabling the device or apparatus and the information processing apparatus to communicate with each other; and
a deletion step of deleting information associated with the device driver after execution of the setting processing in said setting processing step.