PATENT CLAIM ANALYSIS

Application Number: 15928612
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["123", "458000"]

Abstract:
A method for regulating the rail pressure in an injection system of a motor vehicle is described. For the purpose of regulating the rail pressure, a high-pressure pump, which is provided with a digital inlet valve, is actuated, wherein the digital inlet valve is activated such that it is matched to the delivery and suction phase physically present. In this way, it is possible for pressure regulation to be achieved by way of a digital valve even for transmission ratios at which the pump does not have exactly a multiple of delivery and suction phases during two engine cycles.

Claim (Index 1):
A method for regulating rail pressure in an injection system of a motor vehicle engine having a crankshaft, by actuation of a high-pressure pump which is provided with a digital inlet valve, comprising:\n carrying out blind energization of the digital inlet valve for opening and closing the valve; recording a pressure signal from the rail during the blind energization and determining therefrom a top dead center of a pump stroke of the high-pressure pump; approximately determining a crankshaft position for the determined top dead center of the pump stroke; selecting a correct reference between the top dead center of the pump stroke and a top dead center of the engine corresponding to a physical relationship resulting from a transmission ratio Np:Nm, wherein NP is a rotational speed of the pump and Nm is a rotational speed of the engine, by using the approximately determined crankshaft position of the pump; carrying out switching reduction by selecting only those active top dead centers of the pump stroke which correspond to the selected correct reference; and carrying out activation of the digital inlet valve solely on the basis of the selected top dead centers of the pump stroke, with ending of the blind energization.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 90.0
- Lexical Diversity: 1.64615
- Patent Class: 123.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15527828', '14560497', '11831471', '14412307', '11498732']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7128572245661573
- 35 USC 102 Novelty (BERT): 0.4503359405065114
- Combined Prediction Score: 0.6866050961601927
- Mean Citation Score: 148.51890599999996
- Max Citation Score: 154.05301
- Similarity Product: 120.5713319684732

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