PM AMOUNT ESTIMATION DEVICE, PM AMOUNT ESTIMATION SYSTEM, PM AMOUNT ESTIMATING METHOD, DATA ANALYSIS DEVICE, CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE, AND RECEIVER
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United States of America Patent
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Issued Date -
Aug 20, 2020
app pub date -
Feb 4, 2020
filing date -
Feb 20, 2019
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Abstract
A PM amount estimation device is applied to a filter that collects PM in the exhaust gas discharged to an exhaust passage of an internal combustion engine. A storage device stores mapping data which is data defining a mapping that outputs the PM amount collected by the filter. The mapping has at least one of an intake air temperature variable and a wall surface variable, and a flow rate variable as inputs. The intake air temperature variable relates to the temperature of air drawn into the engine. The wall surface variable relates to a cylinder wall surface temperature of the engine. The flow rate variable indicates the flow rate of the fluid entering the filter. The execution device calculates the PM amount based on the output of the mapping having the acquired data as an input.
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