Ignition apparatus
US10612510B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2018 |
| Grant date | Apr 7, 2020 |
| Priority date | — |
| Expiry date | Oct 22, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P9/002
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In an ignition apparatus, a controller outputs a discharge start signal instructing a start of a discharge in the spark plug, and a discharge control signal instructing control of a discharge current in the spark plug after the start of the discharge. A signal line connects between the controller and a control circuit. The discharge start signal and the discharge control signal are transferred from the controller to the control circuit via the signal line. The controller modulates, based on the plural command values, the discharge control signal such that the modulated discharge control signal includes information representing the plural command values and change timings for the respective command values. The control circuit controls, based on the discharge start signal and the modified discharge control signal, the energization circuit to thereby adjust the discharge current to each of the command values at a corresponding one of the change timings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.