PATENT CLAIM ANALYSIS

Application Number: 15888125
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["701", "105000"]

Abstract:
During rapid warm-up operation, a CPU executes full lift injection processing, in which a nozzle needle reaches a maximum lift amount, in an intake stroke of each cylinder of a four-cylinder internal combustion engine, and then executes partial lift injection processing, in which the nozzle needle does not reach the maximum lift amount, in a compression stroke. On the other hand, during learning of injection characteristics of partial lift injection processing, the CPU executes full lift injection processing after executing partial lift injection processing, both of which are executed within a predetermined period in an intake stroke. The CPU learns the injection characteristics based on an inflection point in the temporal change of the induced electromotive force in a coil following the end of the partial lift injection processing.

Claim (Index 1):
A fuel injection control device for an internal combustion engine having a plurality of cylinders,\n the internal combustion engine including fuel injection valves respectively for the plurality of cylinders, the fuel injection valve including a movable element made of a magnetic body and a nozzle needle and configured to open when an electromagnetic force generated by energization processing to a coil acts on the movable element, the fuel injection control device comprising: an electronic control unit configured to execute partial lift injection processing that opens the fuel injection valve by the energization processing in such a way that the nozzle needle does not reach a maximum lift amount, the electronic control unit configured to, when having determined that it is during learning of an injection characteristic of the fuel injection valve, execute valve closing detection processing that detects valve closing of the fuel injection valve based on at least one of a terminal potential of the coil and a current flowing through the coil, the valve closing of the fuel injection valve caused by ending the partial lift injection processing, the electronic control unit configured to, when executing the valve closing detection processing for one of the plurality of cylinders, set a fuel injection period of the corresponding partial lift injection processing so as not to overlap with a fuel injection period by the fuel injection valve for any of the other cylinders, the electronic control unit configured to, based on a detection timing of the valve closing of the fuel injection valve by the valve closing detection processing, execute correction processing that corrects the energization processing for execution of the partial lift injection processing.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 88.0
- Lexical Diversity: 2.13636
- Patent Class: 701.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15866859', '15030442', '15098900', '15096823', '14748914']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4809388285629385
- 35 USC 102 Novelty (BERT): 0.5340803368810247
- Combined Prediction Score: 0.4862529793947472
- Mean Citation Score: 293.585876
- Max Citation Score: 388.85486
- Similarity Product: 335.77399254891395

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

Dataset: test