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 18):
A control method for a fuel cell system, the fuel cell system comprising: 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, the method comprising:\n judging, by the controller, that a first pressure value detected by the first pressure sensor is an abnormal value; closing, by the controller, the cutoff valve and the purge valve; and judging, by the controller, that the on-off valve has failed when a second pressure value detected by the first pressure sensor is smaller than the first pressure value, whereas judging, the controller, that the first pressure sensor has failed when the second pressure value is not smaller than the first pressure value.

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): 0.8668783979962643
- 35 USC 102 Novelty (BERT): 0.4725822147893577
- Combined Prediction Score: 0.8274487796755736
- Mean Citation Score: 193.255824
- Max Citation Score: 198.89653
- Similarity Product: 152.90178093947353

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