Ignition device and ignition system
US10309365B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2015 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | Jun 2, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An ignition device includes a secondary current control circuit that receives a secondary current control signal IGa from an ECU, and a feedback circuit outputs a control signal for controlling energization of an primary coil to an energy supply circuit according to a result of comparison of a control value of the secondary current outputted from the secondary current control circuit and a detected value of the secondary current. Further, the ECU outputs a secondary current control signal IGa in accordance with engine parameters. Thereby, the secondary current substantially indicating the amount of energy that is supplied into the ignition coil from the energy supply circuit can be controlled in accordance with the operating condition of the engine. Therefore, it is possible to suppress excess or shortage of energy supplied from the energy supply circuit to an ignition coil from occurring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.