PATENT CLAIM ANALYSIS

Application Number: 16275637
Application Type: Utility
Filing Date: 2019-02
Publication Date: 2019-06
Patent Classification: ["073", "04050R"]

Abstract:
An apparatus and a method for detecting leakage in a hydrogen tank of a hydrogen fuel cell vehicle are provided. Particularly, leakage is detected due to failure of an airtight seal of a solenoid valve in a hydrogen tank based on a change of the sensing value of a high pressure sensor which represents a hydrogen tank pressure during a process of performing a wakeup operation at the time of key-off of a vehicle.

Claim (Index 12):
An apparatus for detecting leakage in a hydrogen tank of a hydrogen fuel cell vehicle which performs a wakeup function to inject hydrogen gas from a hydrogen fuel supply line to a fuel cell stack using a pressure difference when a vehicle stops, the apparatus comprising:\n a solenoid valve coupled to an inlet of the hydrogen tank that stores hydrogen gas to airtightly open and close the inlet; a high pressure sensor mounted at a front end of the solenoid valve to detect a pressure value which represents a hydrogen tank pressure; and a vehicle controller configured to determine a leakage generation in the hydrogen tank due to failure of the solenoid valve based on the sensing value of the high pressure sensor detected before and after performing the wakeup function.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 99.0
- Lexical Diversity: 1.57143
- Patent Class: 73.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15187119', '15381509', '13814010', '11008226', '14705566']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6403809009164408
- 35 USC 102 Novelty (BERT): 0.5776115842397097
- Combined Prediction Score: 0.6341039692487678
- Mean Citation Score: 238.76257400000003
- Max Citation Score: 465.04138
- Similarity Product: 413.098420660795

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