PATENT CLAIM ANALYSIS

Application Number: 15962650
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-10
Patent Classification: ["060", "272000"]

Abstract:
A system and method is provided for estimating engine exhaust nitrogen oxide sensor signal instability in transient conditions, for example when rapid changes occur in driver demanded torque, and for eliminating fluctuations in EONOx sensor signal status, in order to have more robust on-board diagnostics monitoring and exhaust nitrogen oxide control. The system and method predicts EONOx sensor signal instability by comparing a calculated pedal based driver demand torque delta to calculated instability thresholds and instability threshold hysteresis margins, and generates instability flags. The system and method further validates any predicted EONOx sensor signal instability by observation. Upon validation of the predicted EONOx sensor signal instability, the system and method latches the EONOx sensor signal status to a stable value.

Claim (Index 15):
The exhaust aftertreatment system of a vehicle of  claim 14 , wherein:\n the at least one controller being further configured to generate a high instability threshold hysteresis margin above the high instability threshold, and a low instability threshold hysteresis margin below the low instability threshold, and to:\n set the instability flag when the calculated pedal based driver demand torque delta crosses the low instability threshold value if the calculated pedal based driver demand torque delta increases from below the low instability threshold to between the low instability threshold and the high instability threshold, or when the calculated pedal based driver demand torque delta crosses the high instability threshold value if the calculated pedal based driver demand torque delta decreases from above the high instability threshold to between the low instability threshold and the high instability threshold, and \n clear the instability flag when calculated pedal based driver demand torque delta crosses the low instability threshold hysteresis margin value if the calculated pedal based driver demand torque delta decreases from between the low instability threshold and the high instability threshold to below the low instability threshold, or when the calculated pedal based driver demand torque delta crosses the high instability threshold hysteresis margin value if the calculated pedal based driver demand torque delta increases from between the low instability threshold and the high instability threshold to above the high instability threshold.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 91.0
- Lexical Diversity: 1.86957
- Patent Class: 60.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15820167', '14248875', '15139110', '10700104', '13717408']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.74191283522124
- 35 USC 102 Novelty (BERT): 0.4873291238788858
- Combined Prediction Score: 0.7164544640870045
- Mean Citation Score: 204.05766
- Max Citation Score: 219.6894
- Similarity Product: 145.9766265078664

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

Dataset: test