PATENT CLAIM ANALYSIS

Application Number: 15770627
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-02
Patent Classification: ["123", "456000"]

Abstract:
A method for checking the operation of a high-pressure fuel supply unit for an internal combustion engine, consisting in driving a high-pressure fuel injection pump by a starter, and after the engine is synchronised and fuel injection into the cylinders is shut off, in defining an initial base pressure in a high-pressure rail, in activating the injection pump by issuing successive timing and angle-setting commands, on the basis of the initial pressure, and in comparing the first pressure and the second pressure obtained in the rail by these timing and angle-setting commands, and/or by comparing at least one of the pressures with a reference pressure in order to check the operation of the high-pressure fuel supply unit for the internal combustion engine

Claim (Index 2):
The method as claimed in claimed  1 , comprising:\n step ( 10 ) driving the high-pressure fuel injection pump via the electric drive means; step ( 20 ): waiting for the engine to be synchronized by the engine control unit; step ( 30 ): deactivating the injection of fuel into the cylinders by said injectors; step ( 40 ): defining and establishing an initial base pressure in said common rail; step ( 50 ): subsequently controlling the high-pressure fuel injection pump by means of one of said two timing and angle-setting commands therefor, for a first determined number of engine revolutions; step ( 60 ): measuring and recording a first fuel pressure obtained in the common rail on completion of said first determined number of engine revolutions by said one of the two timing and angle-setting commands for the high-pressure fuel injection pump; step ( 70 ): re-establishing said initial base pressure in said common rail; step ( 80 ): subsequently controlling the high-pressure fuel injection pump by the other of said two timing and angle-setting commands therefor, for a second determined number of engine revolutions; step ( 90 ): measuring and recording a second fuel pressure obtained in the common rail on completion of said second determined number of engine revolutions by said other of said two timing and angle-setting commands for the high-pressure fuel injection pump; step ( 100 ): comparing the first and second fuel pressures with one another and/or at least one of said pressures with a reference pressure, and using the results of the comparison to check the operation of the high-pressure fuel supply system for the internal combustion engine.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 91.0
- Lexical Diversity: 2.15
- Patent Class: 123.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['11941887', '14271646', '11128687', '11128696', '10276559']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7249872704929479
- 35 USC 102 Novelty (BERT): 0.4744095664712381
- Combined Prediction Score: 0.6999295000907769
- Mean Citation Score: 181.87205
- Max Citation Score: 184.21843
- Similarity Product: 125.6138523572135

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