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 18):
The system of  claim 16 , wherein the fuel injection amount based on the calculated aircharge estimate is independent of an EGR concentration, and wherein the controller includes further instructions for:\n correcting the aircharge estimate responsive to the EGR concentration, the EGR concentration based on the EGR sensor; and adjusting one or more engine torque actuators based on the corrected aircharge estimate, the one or more engine torque actuators including the EGR valve.

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): 0.5351820889842559
- 35 USC 102 Novelty (BERT): 0.5665512957790395
- Combined Prediction Score: 0.5383190096637342
- Mean Citation Score: 386.435122
- Max Citation Score: 456.677
- Similarity Product: 427.2288035583496

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

Dataset: test