PATENT CLAIM ANALYSIS

Application Number: 15873241
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["429", "404000"]

Abstract:
A fuel cell system including: a fuel cell; a voltage sensor that measures output voltage of the fuel cell; a converter that boosts the output voltage; and a control unit that controls the converter using a duty ratio including a feedforward term and a feedback term, the feedforward term being set to perform feedforward control, the feedback term being set to perform feedback control, wherein when the control unit causes the converter to boost the output voltage, and when the feedforward term calculated by specified Expression I exceeds an upper limit calculated by specified Expression II, the control unit causes the converter to boost the voltage output from the fuel cell with the duty ratio including the upper limit and the feedback term.

Claim (Index 1):
A fuel cell system, comprising:\n a fuel cell that generates electric power using reactant gas; a voltage sensor that measures output voltage of the fuel cell; a converter that boosts the output voltage; and a control unit configured to control the converter using a duty ratio including a feedforward term and a feedback term, the feedforward term being set to perform feedforward control, the feedback term being set to perform feedback control, wherein when the control unit causes the converter to boost the output voltage, and when the feedforward term calculated by Expression I below: D_FF = 1 - VLtgt VH ( I ) VH (V): a measurement value of the output voltage of the converter VLtgt (V): an estimated value of the output voltage of the fuel cell D_FF: feedforward term \u2003exceeds an upper limit calculated by Expression II below: D_FF \ue89e _ul = 1 - VL VHul ( II ) VL (V): a measurement value of the output voltage of the fuel cell by the voltage sensor VHul (V): a preset upper limit in the output voltage of the converter D_FF_ul: upper limit, \u2003the control unit causes the converter to boost the output voltage with a duty ratio including the upper limit and the feedback term, and when the feedforward term calculated by Expression I is equal to or below the upper limit, the control unit causes the converter to boost the output voltage with a duty ratio including the feedforward term calculated by Expression I and the feedback term.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 86.0
- Lexical Diversity: 2.71429
- Patent Class: 429.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15638532', '13259280', '13823998', '14441938', '12902049']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8630394477159528
- 35 USC 102 Novelty (BERT): 0.4965576948070329
- Combined Prediction Score: 0.8263912724250607
- Mean Citation Score: 213.550206
- Max Citation Score: 294.6212
- Similarity Product: 260.47657560102937

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