US 8,523,988 B2 · System and method for estimating a mass of particulate matter accumulated in a particulate filter

Abstract

A particulate estimation system is configured for estimating a mass of particulate matter accumulated in a particulate filter of an exhaust system. The system includes a memory device, an interface, and a controller. The memory device stores a plurality of modules. Each of the plurality of modules is configured to uniquely estimate an amount of the particulate matter accumulated within the particulate filter over a period of time. The interface receives a plurality of input signals. The plurality of input signals correspond to a plurality of modules that are stored in the memory device. The controller derives a hybrid model based on the input signals. The hybrid model is configured to provide an output that is an estimation of the amount of particulate matter accumulated within the particulate filter over the period of time as a function of the plurality of input signals.

Claims20

Dependent claims

A particulate estimation system configured for estimating a mass of particulate matter accumulated in a particulate filter of an exhaust system, the particulate estimation system comprising:

a memory device configured for storing a plurality of modules;
wherein each of the plurality of modules is configured to uniquely estimate an amount of the particulate matter accumulated within the particulate filter over a period of time;
an interface configured to receive a plurality of input signals;
wherein the plurality of input signals correspond to a plurality of modules stored in the memory device;
a controller configured to derive a hybrid model based on the plurality of input signals;
wherein the hybrid model is configured to provide an output that is an estimation of the amount of particulate matter accumulated within the particulate filter over the period of time as a function of the plurality of input signals.

3 more elements

A method of selectively configuring a particulate estimation system to estimate a mass of particulate matter accumulated in a particulate filter of an exhaust system, the method comprising:

storing a plurality of modules in a memory device;
wherein each of the plurality of modules is configured to uniquely estimate an amount of the particulate matter accumulated within the particulate filter over a period of time;
selecting at least two of the plurality of modules stored in the memory device;
deriving a hybrid model based on the at least two of the plurality of modules selected;
wherein the hybrid model is configured to provide an output that is an estimation of the amount of particulate matter accumulated within the particulate filter over the period of time as a function of the plurality of modules selected.

2 more elements

Dependencies are inferred from the claim text.

System and method for estimating a mass of particulate matter accumulated in a particulate filter

Life of this patent

System and method for estimating a mass of particulate matter accumulated in a particulate filter

Life of this patent

Abstract

Claims20