PATENT CLAIM ANALYSIS

Application Number: 15926940
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-09
Patent Classification: ["060", "605200"]

Abstract:
Methods and systems are provided for determining a dilution of recirculated gases, including blowthrough air, combusted exhaust gas, and fuel vapor, in a split exhaust engine. In one example, the dilution rate may be calculated using a feedforward model that includes determining a pressure differential across a region in an intake passage, mapped engine parameters such as gas temperature, and exhaust valve timing. Engine operations such as spark advance and fuel injection may be adjusted according to the modeled rate to reduce engine knock and improve combustion efficiency.

Claim (Index 16):
A system for an engine, comprising:\n a first set of exhaust valves exclusively coupled to a first exhaust manifold, the first exhaust manifold coupled to an intake passage, upstream of a turbocharger compressor, via an exhaust gas recirculation (EGR) passage, the EGR passage including an EGR valve; a second set of exhaust valves exclusively coupled to a second exhaust manifold coupled to an exhaust passage, upstream of a turbocharger turbine disposed in the exhaust passage; a plurality of engine cylinders, each including one of the first set of exhaust valves and one of the second set of exhaust valves; and a controller including memory with instructions stored thereon for:\n determining a dilution rate of gas flowing from the first set of exhaust valves to the turbocharger compressor via the EGR passage based on a cam timing of the first set of exhaust valves; and \n adjusting spark timing and fuel injection to the plurality of engine cylinders based on the determined dilution rate.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 90.0
- Lexical Diversity: 1.48485
- Patent Class: 60.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15926970', '15382489', '15382556', '15382479', '15382484']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7904104523444375
- 35 USC 102 Novelty (BERT): 0.5951201582572945
- Combined Prediction Score: 0.7708814229357231
- Mean Citation Score: 454.93785800000006
- Max Citation Score: 551.2814
- Similarity Product: 500.6463115027428

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

Dataset: test