Controller and control method for internal combustion engine
US9903290B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2016 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Jun 22, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
There is provided a controller and a control method for an internal combustion engine capable of correcting a detection error of a crankshaft angle with high accuracy. A controller for an internal combustion engine includes an angle information detector that detects an angle interval and a time interval by a specific crank angle sensor; an angle information correction calculator that corrects the angle interval or the time interval by the correction value; an angle information calculator that calculates a crank angle speed, a crank angle acceleration, and an angular acceleration change amount based on the corrected angle interval and the corrected time interval; and a correction value change calculator that change the correction value so that the angular acceleration change amount approaches zero.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.