PATENT CLAIM ANALYSIS

Application Number: 16013158
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-01
Patent Classification: ["123", "472000"]

Abstract:
A control device for an internal combustion engine includes an electronic control unit configured to perform dither control processing for controlling the fuel injection valve based on a requested injection amount such that a part of cylinders among a plurality of cylinders becomes a lean combustion cylinder and cylinders different from the part of cylinders among the cylinders become a rich combustion cylinder, and restriction processing for, in a case where the requested injection amount is equal to or greater than a first injection amount, making no restriction on the dither control processing, and in a case where the requested injection amount is within a second injection amount range of an injection amount smaller than the first injection amount, restricting the dither control processing to a side where a leaning degree of an air-fuel ratio of a cylinder having a leanest air-fuel ratio among the cylinders decreases.

Claim (Index 3):
The control device according to  claim 2 , wherein:\n the electronic control unit is configured to perform requested injection amount calculation processing for calculating an injection amount requested for controlling an exhaust gas air-fuel ratio of each of the cylinders to a target air-fuel ratio as the requested injection amount; the dither control processing includes request value setting processing for setting a request value that determines a reduction correction amount with respect to the requested injection amount of a fuel injection amount for the lean combustion cylinder and an increase correction amount with respect to the requested injection amount of a fuel injection amount for the rich combustion cylinder, processing for making the fuel injection valve configured to allow fuel to be supplied to the lean combustion cylinder inject fuel with an injection amount obtained by reducing and correcting the requested injection amount based on the request value, making the fuel injection valve configured to allow fuel to be supplied to the rich combustion cylinder inject fuel with an injection amount obtained by increasing and correcting the requested injection amount based on the request value, and controlling an average value of an exhaust gas air-fuel ratio of the rich combustion cylinder and an exhaust gas air-fuel ratio of the lean combustion cylinder for a predetermined period to the target air-fuel ratio, and processing for providing, within the predetermined period, a period during which a part of cylinders among the cylinders becomes a lean combustion cylinder and cylinders different from the part of cylinders among the cylinders become a rich combustion cylinder; the restriction processing includes determination processing for determining whether or not an injection amount obtained by reducing and correcting the requested injection amount based on the request value is equal to or greater than a third injection amount smaller than the second injection amount range; and the second injection amount range is a range of the requested injection amount where determination is made in the determination processing that the injection amount obtained by reducing and correcting the requested injection amount is less than the third injection amount.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 94.0
- Lexical Diversity: 2.25
- Patent Class: 123.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15846690', '15496317', '15496335', '10991403', '13810139']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7840974729557698
- 35 USC 102 Novelty (BERT): 0.5005290911962874
- Combined Prediction Score: 0.7557406347798217
- Mean Citation Score: 288.926958
- Max Citation Score: 298.7304
- Similarity Product: 225.16015890083312

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