PATENT CLAIM ANALYSIS

Application Number: 15883647
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-06
Patent Classification: ["701", "002000"]

Abstract:
Implementations of the present application relate to a starting method and apparatus for a permanent magnet synchronous motor, a power system, and an unmanned aerial vehicle (UAV). The method includes: obtaining a current motor rotational speed and motor position information of the permanent magnet synchronous motor; determining whether the current motor rotational speed is less than a preset minimum rotational speed, and if the current motor rotational speed is less than the preset minimum rotational speed, using the preset minimum rotational speed as a feedback rotational speed; otherwise, using the current motor rotational speed as a feedback rotational speed; and performing closed-loop control on the permanent magnet synchronous motor according to the feedback rotational speed and the motor position information. In this way, the starting method is simplified and simpler. Potential failure risks in various states in the prior art are avoided, thereby effectively improving reliability of a starting process.

Claim (Index 13):
An unmanned aerial vehicle, comprising:\n a central housing; an arm, wherein the arm is connected to the central housing; a motor, wherein the motor is connected to the other end of the arm; a motor controller, wherein the motor controller is located on the arm or inside a cavity formed by the central housing, an output end of the motor controller being connected to an input end of the motor; and a propeller, connected to the motor, wherein the propeller, driven by the motor, generates a force that moves the unmanned aerial vehicle, wherein the motor controller is configured to: obtain a current motor rotational speed and motor position information of the motor; determine whether the current motor rotational speed is less than a preset minimum rotational speed, and if the current motor rotational speed is less than the preset minimum rotational speed, use the preset minimum rotational speed as a feedback rotational speed; otherwise, use the current motor rotational speed as a feedback rotational speed; and perform closed-loop control on the motor according to the feedback rotational speed and the motor position information.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 86.0
- Lexical Diversity: 2.22667
- Patent Class: 701.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['12829638', '15517208', '15647597', '15100802', '14886118']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3860008830762925
- 35 USC 102 Novelty (BERT): 0.4927488998412581
- Combined Prediction Score: 0.3966756847527891
- Mean Citation Score: 193.591386
- Max Citation Score: 206.14844
- Similarity Product: 141.2948921950221

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

Dataset: test