Internal combustion engine controller
US8081498B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2009 |
| Grant date | Dec 20, 2011 |
| Priority date | — |
| Expiry date | Feb 19, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/2017
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An internal combustion engine controller comprises a booster coil connected to a battery and a booster capacitor. A switch element is connected to the booster coil to control the passage of current through the booster coil and an interruption of the current. The booster capacitor accumulates electrical energy generated with an inductance of the booster coil at the time of the interruption of the passage of the current. A booster control circuit carries out control in a constant boost switching cycle so as to pass the current through the booster coil and the switch element until the current reaches a preset switching stop threshold value and then interrupt the current to charge the energy generated with the inductance of the booster coil into the booster capacitor. The booster control circuit is configured to ensure a minimum time period for the booster capacitor-charging of the energy within the boost switching cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.