PATENT CLAIM ANALYSIS

Application Number: 15926970
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 steady state model based on temperature measurements from an intake region of the engine. The steady state model may be further used in combination with a feedforward model adapted to estimate engine dilution during engine transients as a correction factor.

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 gases flowing from the first set of exhaust valves to the turbocharger compressor via the EGR passage based on a first temperature of gases in the EGR passage, a second temperature of gases in the intake passage, upstream of where the EGR passage couples to the intake passage, and a third temperature of gases in the intake passage, downstream of the turbocharger compressor; 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: 7.0
- Percentile: 90.0
- Lexical Diversity: 1.44068
- Patent Class: 60.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15382489', '15382556', '15382479', '15382484', '15382458']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7942832456196922
- 35 USC 102 Novelty (BERT): 0.5485541113448963
- Combined Prediction Score: 0.7697103321922126
- Mean Citation Score: 430.086824
- Max Citation Score: 444.23883
- Similarity Product: 393.4422023284793

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