PATENT CLAIM ANALYSIS

Application Number: 15874412
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-06
Patent Classification: ["060", "295000"]

Abstract:
An exhaust gas treatment system for an internal combustion engine may have a reductant delivery system that delivers reductant to an exhaust stream in an exhaust aftertreatment system. A temperature sensor may be positioned in or near the flow of reductant and exhaust to measure the temperature of the reductant and exhaust. A change in temperature over time, such as an increase, decrease, or change in variation amplitude, may indicate the presence of a reductant deposit in the system. Detection of the deposit may initiate a regeneration cycle in which the operating characteristics of the system change to eliminate the reductant deposit to prevent it from hindering the performance of the exhaust aftertreatment system.

Claim (Index 16):
A system comprising:\n an exhaust aftertreatment system in fluid communication with the internal combustion engine to receive exhaust gas from the internal combustion engine, the exhaust aftertreatment system injecting reductant into the exhaust gas to create a mixture of exhaust gas and reductant, a temperature sensor positioned in or near the exhaust aftertreatment system; and an onboard diagnostic system including:\n a sampling circuit configured to sample a temperature of a mixture of exhaust gas and reductant with the temperature sensor; \n a comparison circuit configured to:\n determine when the temperature exceeds a predetermined temperature value; and \n in response to determining that the temperature exceeds the predetermined temperature value, determine a presence of a reductant deposit in an exhaust aftertreatment system; and \n \n a regeneration circuit configured to, in response to determining the presence of a reductant deposit, initiate a regeneration cycle to increase a temperature of exhaust gas flowing through the exhaust aftertreatment system to at least partially remove the reductant deposit.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 86.0
- Lexical Diversity: 2.03333
- Patent Class: 60.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14981265', '13783025', '15688964', '13751960', '13803827']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7430067066536865
- 35 USC 102 Novelty (BERT): 0.5449882129147087
- Combined Prediction Score: 0.7232048572797888
- Mean Citation Score: 321.6022200000001
- Max Citation Score: 418.24973
- Similarity Product: 376.76862629724985

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

Dataset: test