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 1):
A method for checking the operation of a high-pressure fuel supply system for an internal combustion engine comprising a booster pump, a high-pressure fuel injection pump fed by the booster pump, a regulator for the high-pressure fuel injection pump, means for activating the high-pressure fuel injection pump by means of a timing command or by means of an angle-setting command via the regulator for the high-pressure fuel injection pump and an engine control unit, a high-pressure fuel tank or common rail fed by said high-pressure fuel injection pump, means for measuring the pressure in the common rail, injectors fed with fuel by said common rail and controlled by the engine control unit to inject fuel into the cylinders of the internal combustion engine, said high-pressure fuel injection pump being capable of being driven by an electric drive with the internal combustion engine, the method comprising:\n driving the high-pressure fuel injection pump by said electric drive and, after the engine is synchronized and the injection of fuel into the cylinders is shut off, defining an initial base pressure in the common rail, successively activating the high-pressure fuel injection pump by said timing and angle-setting commands, respectively, on the basis of an initial base pressure, and comparing a first pressure and a second pressure obtained in the common rail by said timing and angle-setting commands, respectively, with one another and/or at least one of said pressures with a reference pressure, 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): 0.7290997889539375
- 35 USC 102 Novelty (BERT): 0.4543689626628853
- Combined Prediction Score: 0.7016267063248323
- Mean Citation Score: 181.87205
- Max Citation Score: 184.21843
- Similarity Product: 151.0644586758447

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