Data map forming method, data map formation-purpose information record medium forming method and apparatus
US6961650B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 22, 2003 |
| Grant date | Nov 1, 2005 |
| Priority date | — |
| Expiry date | Apr 22, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/2435
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An allocation map stored in a ROM in an ECU is set corresponding to the kinds of fuel injection valves. Therefore, at the time of incorporating fuel injection valves into a diesel engine, it is possible to freely set how injection correction amount data read from a two-dimensional code by a writing device is allocated in an injection correction amount map in steps S214 and S216, separately for the individual kinds of fuel injection valves. Since the injection correction amount map in which the injection correction amount data is arranged with a distribution of density corresponding to the kinds of fuel injection valves, it is possible to change and set correction points with high degree of freedom even though the amount of data recordable in the two-dimensional code is limited. Therefore, high-precision data maps can be used separately for the individual kinds of fuel injection valves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.