Combustion pressure feedback based engine control with variable resolution sampling windows
US10458346B2 · kind B2 · utility
1Cited by
73References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 2018 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | May 1, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system for controlling an internal combustion engine has an in-cylinder pressure sensor, a crank angle sensor and a controller coupled to receive inputs from the pressure sensor and crank angle sensor. The controller is configured to convert the cylinder pressure input into a combustion metric indicative of the combustion occurring in the measured cylinder and control fuel input and timing into the engine based on the combustion metric. The controller samples the in-cylinder pressure sensor at a high frequency during critical combustion events and at a lower frequency during the non-critical cylinder conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.