PATENT CLAIM ANALYSIS

Application Number: 15944341
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["701", "104000"]

Abstract:
Methods and systems are provided for accurately estimating intake aircharge based on the output of an intake oxygen sensor while flowing EGR, purge, or PCV hydrocarbons to the engine. The unadjusted aircharge estimate is used for engine fuel control while the hydrocarbon adjusted aircharge estimate is used for engine torque control. A controller is configured to sample the oxygen sensor at even increments in a time domain, stamp the sampled data in a crank angle domain, store the sampled data in a buffer, and then select one or more data samples corresponding to a last firing period from the buffer for estimating the intake aircharge.

Claim (Index 5):
The method of  claim 1 , wherein adjusting engine fueling and learning the adaptive fuel correction includes feed-forward adjusting an engine fueling amount based on the output of the intake oxygen sensor and feedback adjusting the engine fueling amount based on an air-fuel ratio estimated by an exhaust gas sensor.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 91.0
- Lexical Diversity: 1.68657
- Patent Class: 701.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15075875', '15076212', '15056745', '14956784', '14252679']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5381496516154588
- 35 USC 102 Novelty (BERT): 0.5603550316880151
- Combined Prediction Score: 0.5403701896227144
- Mean Citation Score: 386.435122
- Max Citation Score: 456.677
- Similarity Product: 383.5554527856112

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

Dataset: test