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 17):
A method of estimating EONOx sensor signal instability in transient conditions and eliminating fluctuations in the EONOx sensor signal, comprising the steps of:\n predicting instability in the EONOx sensor signal by:\n calculating a pedal based driver demand torque, \n calculating a pedal based driver demand torque delta, \n calculating instability thresholds for the calculated pedal based driver demand torque delta, \n detecting instability in the calculated pedal based driver demand torque by comparing the calculated pedal based driver demand torque delta to the instability thresholds, and \n setting an instability flag predicting instability in the EONOx sensor signal when instability in the calculated pedal based driver demand torque is detected; \n validating the predicted instability in the EONOx sensor signal, and upon prediction and validation of instability in the EONOx sensor signal, latching the EONOx sensor signal to a stable value.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 91.0
- Lexical Diversity: 1.86957
- Patent Class: 60.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15820167', '14248875', '15139110', '10700104', '13717408']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7182108624043119
- 35 USC 102 Novelty (BERT): 0.48653011351895
- Combined Prediction Score: 0.6950427875157758
- Mean Citation Score: 204.05766
- Max Citation Score: 219.6894
- Similarity Product: 143.19325774966475

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