| Title of Invention | ENGINE CONTROL SYSTEM. |
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| Abstract | An engine control device capable of detecting an acceleration state by using the phase of a crankshaft and an intake pressure so that an acceleration feeling can be provided accordingly, wherein the state of strokes is detected by using the rotating angle of the crankshaft and the intake pressure, pressure differences between intake pipe pressures detected at specified crank angles in an exhaust stroke and an intake stroke and intake pipe pressures detected at the same crank angles in the same strokes of a previous cycle are calculated as intake pressure differences รป3A-MIN, the calculated values are compared with thresholds set for the crank angles and, when the compared values are equal to or more than the thresholds, an engine is considered to be in an accelerated state, and the injected amount of fuel at the time of acceleration is immediately added to the injected amount of fuel in stationary state and then injected, the injected amount of fuel in stationary state can be provided by detecting an intake air volume by using the intake pressure, and the volume of an air/fuel passage ranging from a throttle valve to an intake port is made equal to or less than a piston displacement to increase the detection accuracy of the acceleration state and the intake air volume. (FIG. -1) |
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46-kolnp-2004-granted-abstract.pdf
46-kolnp-2004-granted-claims.pdf
46-kolnp-2004-granted-correspondence.pdf
46-kolnp-2004-granted-description (complete).pdf
46-kolnp-2004-granted-drawings.pdf
46-kolnp-2004-granted-examination report.pdf
46-kolnp-2004-granted-form 1.pdf
46-kolnp-2004-granted-form 18.pdf
46-kolnp-2004-granted-form 2.pdf
46-kolnp-2004-granted-form 3.pdf
46-kolnp-2004-granted-form 5.pdf
46-kolnp-2004-granted-letter patent.pdf
46-kolnp-2004-granted-reply to examination report.pdf
46-kolnp-2004-granted-specification.pdf
46-kolnp-2004-granted-translated copy of priority document.pdf
| Patent Number | 214977 | ||||||||||||
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| Indian Patent Application Number | 00046/KOLNP/2004 | ||||||||||||
| PG Journal Number | 08/2008 | ||||||||||||
| Publication Date | 22-Feb-2008 | ||||||||||||
| Grant Date | 20-Feb-2008 | ||||||||||||
| Date of Filing | 14-Jan-2004 | ||||||||||||
| Name of Patentee | YAMAHA HATSUDOKI KABUSHIKI KAISHA. | ||||||||||||
| Applicant Address | 2500 SHINGI, IWATA-SHI, SHIZUOKA 438-8501 JAPAN. | ||||||||||||
Inventors:
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| PCT International Classification Number | F02D45/00 | ||||||||||||
| PCT International Application Number | PCT/JP02/10945 | ||||||||||||
| PCT International Filing date | 2002-10-22 | ||||||||||||
PCT Conventions:
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