PATENT CLAIM ANALYSIS

Application Number: 15958284
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["340", "644000"]

Abstract:
A method and a system for detecting an adhesion of a relay are disclosed. In a high voltage circuit, a voltage is measured across a load multiple times within a specified time period when a first relay and a second relay are open and a third relay is closed, where the second relay may be a main negative relay of the high voltage circuit. The second relay is declared to have an adhesion malfunction when a change in the value of the measured load voltage satisfies a specified condition. Using the change in the sampled load voltages external to the main negative relay, the adhesion malfunction of the main negative relay may be diagnosed, so that corrective action may be taken. The potential safety hazard caused by the adhesion malfunction of the main negative relay may be prevented, such as may occur in an electric vehicle high voltage circuit.

Claim (Index 1):
A method for detecting an adhesion malfunction of a relay of a high voltage circuit, the high voltage circuit comprising a battery pack, a first relay, a load, a series branch, and a second relay, wherein the first relay is connected to a positive electrode of the battery pack, the second relay is connected to a negative electrode of the battery pack, the series branch includes a third relay and a first resistor, and wherein the series branch is connected in parallel with the first relay, the method comprising:\n measuring a second voltage across the load multiple times within a time period when the first relay and the second relay are open and the third relay is closed; and determining that the second relay has the adhesion malfunction when a change in a value of the second voltage satisfies a condition.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 91.0
- Lexical Diversity: 2.20833
- Patent Class: 340.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14422045', '11237874', '14569712', '15657278', '15190043']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.665144701243786
- 35 USC 102 Novelty (BERT): 0.4684396560150493
- Combined Prediction Score: 0.6454741967209123
- Mean Citation Score: 160.981376
- Max Citation Score: 166.61777
- Similarity Product: 135.12625495144252

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