Back to results
US 2021/0293198 A1Published application
Control device
AssigneeDenso Corporation
InventorsMakoto TANAKA, Masatake WADA
Life of this patent
Estimating the term…
Abstract
A control device includes a drive unit configured to supply electric power to a fuel injection valve to perform valve open drive to supply fuel to a combustion chamber of an internal combustion engine; and a correction unit configured to correct a fuel injection amount of the fuel injection valve. The correction unit is configured to learn the fuel injection amount of the fuel injection valve when NOx purge is performed to reduce and purify the NOx occlusion catalyst.
Claims11
A control device comprising:
- a drive unit configured to supply electric power to a fuel injection valve to perform valve open drive to supply fuel to a combustion chamber of an internal combustion engine;
- and
- a correction unit configured to correct a fuel injection amount of the fuel injection valve, wherein
- a NOx occlusion catalyst is provided in an exhaust pipe of the internal combustion engine to occlude NOx in exhaust gas that flows through the exhaust pipe to reduce and purify occluded NOx, and
- the correction unit is configured to learn the fuel injection amount of the fuel injection valve when NOx purge is performed to reduce and purify the NOx occlusion catalyst.
2 more elements
A control device comprising:
- a processor configured to
- supply electric power to a fuel injection valve to open the fuel injection valve to supply fuel to a combustion chamber of an internal combustion engine,
- determine whether NOx purge is performed to reduce and purify a NOx occlusion catalyst that is provided in an exhaust pipe of the internal combustion engine to occlude NOx contained in exhaust gas in the exhaust pipe to reduce and purify occluded NOx,
- learn a fuel injection amount of the fuel injection valve on determination that the NOx purge is performed, and
- correct the fuel injection amount of the fuel injection valve.
2 more elements
Dependencies are inferred from the claim text.