Engine control system based on soot loading
AssigneeCaterpillar Inc.
InventorJonathan Patrick Kilkenny
Life of this patent
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Abstract
A control system for an internal combustion engine having a particulate filter is disclosed. The control system may have a sensor configured to detect a performance parameter of the particulate filter and generate a corresponding signal. The control system may also have a controller in communication with the sensor and the internal combustion engine. The control system may be configured to receive the signal and determine a soot loading status of the particulate filter based on the signal. The control system may be further configured to modify operation of the internal combustion engine based on the soot loading status during normal operation of the particulate filter.
Claims20
A control system for an internal combustion engine having a particulate filter, comprising:
- a sensor configured to detect a performance parameter of the particulate filter and generate a corresponding signal;
- and
- a controller in communication with the sensor and the internal combustion engine, the controller configured to:
- receive the signal;
- determine a soot loading status of the particulate filter based on the signal;
- and
- modify operation of the internal combustion engine based on the soot loading status during normal operation of the particulate filter.
A method of controlling engine operation, comprising:
- determining a soot loading status of a particulate filter;
- and
- modifying operation of the engine based on the soot loading status during normal operation of the particulate filter.
A power source, comprising:
- an engine having a desired operating range and being configured to combust a fuel/air mixture and produce power and a flow of exhaust;
- a filter medium located to receive the flow of exhaust and remove particulate matter therefrom;
- a sensor configured to detect a performance parameter of the filter medium and generate a corresponding signal;
- and
- a controller in communication with the sensor and the engine, the controller configured to:
- receive the signal;
- determine based on the signal a particulate loading status of the filter medium causing engine operation to deviate from the desired operating range;
- and
- to modify operational parameters of the engine based on the particulate loading status to minimize the deviation.
Dependencies are inferred from the claim text.