PATENT CLAIM ANALYSIS

Application Number: 15869170
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-12
Patent Classification: ["123", "679000"]

Abstract:
To provide a controller and a control method for an internal combustion engine capable of estimating exhaust gas temperature at any estimation positions of the exhaust pipe with good accuracy by taking into consideration a temperature drop of exhaust gas by heat radiation of the exhaust pipe. A controller for an internal combustion engine is provided with an outlet gas temperature calculator that calculates an outlet gas temperature which is a temperature of exhaust gas at an outlet of a combustion chamber, based on the driving condition; a heat radiation amount calculator that calculates a temperature decrease amount of the exhaust gas by heat radiation of an exhaust pipe from the outlet of the combustion chamber to an estimation position; and an exhaust gas temperature estimation calculator that estimate an exhaust gas temperature at the estimation position by subtracting the temperature decrease amount from the outlet gas temperature.

Claim (Index 6):
The controller for the internal combustion engine according to  claim 1 , wherein the outlet gas temperature calculator calculates a combustion chamber gas amount which is a gas amount flowed in the combustion chamber;\n calculates a combustion heat amount generated in the combustion chamber by combustion of fuel; calculates a cooling loss rate, which is a ratio of a heat amount radiated to a wall surface of the combustion chamber out of the combustion heat amount; calculates an indicated thermal efficiency, which is a ratio of a heat amount taken out as work by an internal cylinder pressure of the combustion chamber out of the combustion heat amount; and calculates the outlet gas temperature based on the combustion chamber gas amount, the combustion heat amount, the cooling loss rate, and the indicated thermal efficiency.

Metadata:
- Claim Count in Document: 14.0
- Percentile: 86.0
- Lexical Diversity: 2.68421
- Patent Class: 123.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['10695873', '14154398', '15726547', '13732864', '10623295']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.744121417700338
- 35 USC 102 Novelty (BERT): 0.5016004363084746
- Combined Prediction Score: 0.7198693195611517
- Mean Citation Score: 272.993756
- Max Citation Score: 295.8091
- Similarity Product: 249.78409226474167

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

Dataset: test