Method and apparatus to control an ignition system
US10961972B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2014 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Jan 9, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P17/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An ignition system including a spark plug control unit adapted to control at least two coil stages to provide a current to a spark plug, including two stages including a first transformer including a first primary winding inductively coupled to a first secondary winding; a second transformer including a second primary winding inductively coupled to a second secondary winding; the control unit enabled to simultaneously switch on and off two corresponding switches to maintain a continuous ignition fire, and includes a step-down converter stage with a switch and a diode. The method includes i) switching off the switch; and ii) toggling the two corresponding switches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.