PATENT CLAIM ANALYSIS

Application Number: 15741604
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["123", "406190"]

Abstract:
An EGR rate estimation method using an EGR valve opening area involves aggravated EGR rate estimation accuracy as an EGR valve is deteriorated and is unable to satisfy required accuracy when a target EGR rate is high. With a method for correcting a fuel injection amount by a fuel injection valve through estimation of a purge air-fuel ratio on the basis of variations in an air-fuel ratio variable depending on whether purging is performed, the fuel injection correction fails to accommodate the change in the air-fuel ratio when concentration of fuel evaporative emissions adsorbed by an activated carbon of a canister is high, resulting in reduced conversion efficiency of a catalyst. An arrangement includes an introduction port that is disposed in an intake pipe and through which a gas other than fresh air flows in the intake pipe and humidity sensors disposed upstream and downstream, respectively, of the introduction port. The EGR rate or the purge air-fuel ratio in the intake pipe is estimated using detection values of the respective humidity sensors.

Claim (Index 1):
A control apparatus for an internal combustion engine, the control apparatus controlling the internal combustion engine including an intake pipe and a throttle valve disposed in the intake pipe, the throttle valve controlling an air flow rate, the control apparatus comprising:\n an introduction port that is disposed in the intake pipe and through which a gas other than fresh air flows in the intake pipe, wherein the control apparatus controls the internal combustion engine using detection values of humidity sensors disposed upstream and downstream, respectively, of the introduction port.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 86.0
- Lexical Diversity: 1.97802
- Patent Class: 123.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13146563', '16066807', '15528970', '15260170', '14284904']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7686478933259222
- 35 USC 102 Novelty (BERT): 0.4968463804526483
- Combined Prediction Score: 0.7414677420385948
- Mean Citation Score: 301.644048
- Max Citation Score: 307.2668
- Similarity Product: 254.91823677148813

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