Method and control unit for controlling an internal combustion engine
US9347413B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2011 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Jun 28, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method and a control unit are disclosed for controlling an internal combustion engine having fuel injector(s), a camshaft for actuating inlet and/or outlet valve(s), a valve-train adjusting device for controllably changing the actuating characteristic of at least one valve which is actuated by means of the camshaft, and optionally having a camshaft sensor which supplies a camshaft signal dependent on the camshaft angle, a crankshaft sensor which supplies a crankshaft signal representing the crankshaft angle, and a control unit for controlling the fuel injection and the valve-train adjusting device. In order to obtain information about the current setting of the valve-train adjusting device, at least one cylinder pressure signal supplied by a cylinder pressure sensor for measuring the pressure in an associated cylinder is evaluated with regard to interference signals, and the evaluation result is taken into consideration in the control of the valve-train adjusting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.