Systems and methods for coordination of skip-fire and aftertreatment heater operation to maintain exhaust gas temperature
US11920533B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 27, 2020 |
| Grant date | Mar 5, 2024 |
| Priority date | — |
| Expiry date | May 27, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system includes an aftertreatment system heater of an exhaust aftertreatment system coupled to an engine A controller coupled to the aftertreatment system heater is configured to determine a condition of an exhaust gas from an engine and compare the condition to a predefined threshold. If the condition of the exhaust gas does not meet the predefined threshold, the controller is configured to determine whether an engine operating condition is met for activating a cylinder deactivation operating mode for the engine. If the engine operating condition is met, the controller is configured to operate the engine in the cylinder deactivation operating mode by deactivating a cylinder of a plurality of cylinders. If the engine operating condition is not met, the controller is configured to activate the aftertreatment system heater to heat the exhaust gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.