PATENT CLAIM ANALYSIS

Application Number: 15862134
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-09
Patent Classification: ["429", "446000"]

Abstract:
A controller closes a cutoff valve and a purge valve when a pressure value detected by a pressure sensor is an abnormal value. The controller then judges that an on-off valve has failed when the pressure value detected by the pressure sensor P 1  has lowered, whereas the controller judges that the pressure sensor has failed when the pressure value detected by the pressure sensor has not lowered.

Claim (Index 1):
A fuel cell system, comprising:\n a fuel cell; an on-off valve configured to be capable of reducing a pressure of a fuel gas, the on-off valve regulating a quantity of state of the fuel gas to be supplied to the fuel cell; a fuel gas supply passage having a first passage extending between the fuel cell and the on-off valve and a second passage extending from the on-off valve via a cutoff valve to a fuel gas supply source; a first pressure sensor that detects a pressure of the fuel gas inside the first passage; a gas discharge mechanism that discharges the fuel gas inside the first passage out of the first passage when the pressure of the fuel gas inside the first passage exceeds a threshold value; a circulation passage that returns a fuel-off gas discharged from the fuel cell to the first passage; a purge valve for discharging a fluid inside the circulation passage out of the circulation passage; and a controller connected to the on-off valve, the cutoff valve, the first pressure sensor and the purge valve, wherein when a pressure value detected by the first pressure sensor is an abnormal value, the controller closes the cutoff valve and the purge valve; and thereafter, when the pressure value detected by the first pressure sensor has lowered, the controller judges that the on-off valve has failed, whereas when the pressure value detected by the first pressure sensor has not lowered, the controller judges that the first pressure sensor has failed.

Metadata:
- Claim Count in Document: 41.0
- Percentile: 86.0
- Lexical Diversity: 2.21875
- Patent Class: 429.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14331566', '16088275', '12810121', '14911543', '16301487']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8667069739576934
- 35 USC 102 Novelty (BERT): 0.4740541445066047
- Combined Prediction Score: 0.8274416910125846
- Mean Citation Score: 193.255824
- Max Citation Score: 198.89653
- Similarity Product: 150.71755124505998

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

Dataset: test