PATENT CLAIM ANALYSIS

Application Number: 15755292
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["060", "277000"]

Abstract:
An aftertreatment system comprises a particulate filter configured to filter PM possessing a predetermined, least effective size range included in an exhaust gas flowing through the aftertreatment system. A PM sensor assembly is positioned downstream of the particulate filter and includes a housing having an inlet, an outlet, a sidewall and defines an internal volume. A PM sensor is positioned within the internal volume. The housing is configured to redirect a flow of exhaust gas entering the PM sensor assembly around the PM sensor so that small particles included in the exhaust gas flow having a first size within or smaller than the predetermined size range are directed around the particulate matter sensor. Large particles having a second size larger than the predetermined size range impact the PM sensor. A controller is communicatively coupled to the PM sensor.

Claim (Index 21):
A method for determining a failure of a particulate filter configured to filter particulate matter possessing a predetermined size range, the particulate filter included in an aftertreatment system having a particulate matter sensor assembly positioned downstream of the particulate filter, the particulate matter sensor assembly comprising a housing having an inlet, an outlet and a sidewall, a particulate matter sensor positioned within an internal volume defined by the housing, the method comprising:\n flowing an exhaust gas through the aftertreatment system, a portion of the exhaust gas flowing into the housing via the single inlet after flowing through the particulate filter, the housing configured to redirect the flow of the portion of the exhaust gas flow around the particulate matter sensor such that small particles included in the portion of the exhaust gas flow having a first size within or smaller than the predetermined size range are directed around the particulate matter sensor, and large particles having a second size larger than the predetermined size range impact the particulate matter sensor, interpreting a first electrical parameter value of the particulate matter sensor; allowing the exhaust gas to flow through the particulate matter sensor assembly for a predetermined time, the predetermined time enabling the large particles to accumulate on the particulate matter sensor; interpreting a second electrical parameter value of the particulate matter sensor; determining if a difference between the second electrical parameter value and the first electrical parameter value is greater than a predetermined threshold; if the difference is greater than the predetermined threshold, determining a failure of the particulate filter; and indicating the failure of the catalyst to a user.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 88.0
- Lexical Diversity: 2.19403
- Patent Class: 60.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14818361', '13751960', '15556997', '13271626', '15063703']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7216374998720223
- 35 USC 102 Novelty (BERT): 0.477157906902702
- Combined Prediction Score: 0.6971895405750903
- Mean Citation Score: 219.950562
- Max Citation Score: 226.51997000000003
- Similarity Product: 172.87759391512276

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test