PATENT CLAIM ANALYSIS

Application Number: 15904526
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-09
Patent Classification: ["060", "274000"]

Abstract:
A fuel injection controller for an internal combustion engine selects as the injection mode either single injection or split injection, counts, based on a drive current detection signal, which indicates that a drive current is generated to be fed to the direct injector, the number of occurrences of the drive current in one combustion cycle as a number-of-injections count value, and determines, based on the number-of-injections count value, whether the combustion state in the cylinder is satisfactory. The fuel injection controller determines that the combustion state in the cylinder is unsatisfactory if the number-of-injections count value in one combustion cycle is one when catalyst warm-up control is being performed with the temperature of the engine being lower than or equal to a predetermined temperature.

Claim (Index 5):
A method for controlling fuel injection of an internal combustion engine, wherein the internal combustion engine includes an electromagnetic direct injector, which is configured to inject fuel into a cylinder, and an exhaust purification catalyst, which is located in an exhaust passage to purify exhaust, the method comprising:\n selecting, as an injection mode, either single injection, in which an amount of fuel required for each combustion is injected in one injection, or split injection, in which the amount of fuel required for each combustion is divided and injected in a plurality of fuel injections, in accordance with an operation state of the internal combustion engine; counting, based on a drive current detection signal, which indicates that a drive current is generated to be fed to the direct injector, a number of occurrences of the drive current in one combustion cycle as a number-of-injections count value; and determining, based on the number-of-injections count value, whether a combustion state in the cylinder is satisfactory, wherein the determining whether the combustion state in the cylinder is satisfactory includes determining that the combustion state in the cylinder is unsatisfactory if the number-of-injections count value in one combustion cycle is one when catalyst warm-up control is being performed on the exhaust purification catalyst with a temperature of the internal combustion engine being lower than or equal to a predetermined temperature.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 88.0
- Lexical Diversity: 1.98507
- Patent Class: 60.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13180777', '14895765', '10526489', '15426637', '15557987']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7084738478564953
- 35 USC 102 Novelty (BERT): 0.4987904767897463
- Combined Prediction Score: 0.6875055107498204
- Mean Citation Score: 272.46976600000005
- Max Citation Score: 291.28073
- Similarity Product: 238.83528282966256

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