PATENT CLAIM ANALYSIS

Application Number: 15760051
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["318", "400320"]

Abstract:
Before sensorless control is performed on a three-phase brushless motor by sequentially switching between six energization modes each for selecting two phases to be energized from the three phases, the initial position of the rotor is estimated based on a change in a second induced voltage by: momentarily energizing the three-phase brushless motor according to each of the six energization modes, and detecting six first induced voltages each generated in a non-energized phase by the energization; calculating three induced voltage differences corresponding respectively to three non-energized phases, each induced voltage difference being a difference between two of the six first induced voltages that are detected during energization according to two energization modes that share a non-energized phase; and energizing the three-phase brushless motor according a predetermined energization mode selected based on the three induced voltage differences, and detecting the second induced voltage generated in a non-energized phase by the energization.

Claim (Index 10):
The drive device for the three-phase brushless motor according to  claim 9 , wherein the predetermined time varies depending on the minimum angle range.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 90.0
- Lexical Diversity: 2.35821
- Patent Class: 318.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15023189', '13445335', '13610310', '13052519', '11881243']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7550626600177744
- 35 USC 102 Novelty (BERT): 0.5422060497129007
- Combined Prediction Score: 0.7337769989872871
- Mean Citation Score: 352.65247
- Max Citation Score: 398.93625
- Similarity Product: 330.7346044179797

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