PATENT CLAIM ANALYSIS

Application Number: 15747115
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-09
Patent Classification: ["324", "503000"]

Abstract:
Wide deployment of high voltage battery systems in traction, industrial and renewable energy installations is raising the concerns for human safety. Exposure to hazardous high voltages may occur due to deterioration of insulation materials or by accidental events. It is thus important to monitor for such faults and being able to provide timely warnings to affected persons. For this purpose it has become mandatory for electrified passenger vehicles (CFR 571.305) to maintain high isolation values which can be continuously monitored by electrical isolation monitoring devices. The task of monitoring isolation resistance within the electrically noisy car environment is not a trivial task and the solution to this problem has become quickly a field of research and innovation for all affected industries.

Claim (Index 29):
An apparatus for estimating a change in values of isolation impedance in an isolated ground (IT) electrical power system, comprising:\n a power source having a positive terminal and a negative terminal, said terminals connected in circuit to at least one additional electrical component and isolated from a chassis ground within the electrical system; wherein the electrical system contains an isolation impedance between each of the terminals and the chassis ground; a storage medium; means measuring an initial value and a subsequent different value of a voltage between the chassis ground and a first reference point and between a second reference point and a third reference point in the electrical system; means storing the measured initial values and the subsequent different values in the storage medium; a mathematical function stored in the storage medium, whereby application of the mathematical function extracts an estimated change in values of isolation impedances associated with the voltage measurements by using a model of the electrical system and minimizing an error function.

Metadata:
- Claim Count in Document: 98.0
- Percentile: 86.0
- Lexical Diversity: 1.37234
- Patent Class: 324.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13467834', '14504588', '14607404', '13172922', '12484434']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5448625474713703
- 35 USC 102 Novelty (BERT): 0.45551732822226
- Combined Prediction Score: 0.5359280255464592
- Mean Citation Score: 145.106004
- Max Citation Score: 160.99979
- Similarity Product: 127.96423302372811

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

Dataset: test