PATENT CLAIM ANALYSIS

Application Number: 15759695
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-02
Patent Classification: ["318", "400340"]

Abstract:
The present invention provides a control device and a control method for a brushless motor, including energization modes for selecting a phase to be energized by pulse width modulation operation from among phases of the brushless motor, and being provided for controlling the rotation speed of the brushless motor by switching between the energization modes based on comparison of a voltage induced in a non-energized phase with its threshold value. In the control device and method, the input voltage of the brushless motor is increased when the duration for which the induced voltage is maintained unchanged or the duration for which the current energization mode is maintained employed reaches a predetermined time. This prevents the brushless motor from being staying in the stopped state, even when the load on the brushless motor abruptly increases while the brushless motor rotates at a speed within an extremely low speed range.

Claim (Index 10):
The control device for the brushless motor according to  claim 9 , wherein the voltage control unit corrects and increases whichever is the higher of the command value of the rotation speed of the brushless motor and measurement data of the rotation speed of the brushless motor, and uses the corrected rotation speed as a command value for use in controlling the rotation speed of the brushless motor.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 90.0
- Lexical Diversity: 1.86747
- Patent Class: 318.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13614380', '13610310', '15023189', '15760051', '15126467']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7181670704359412
- 35 USC 102 Novelty (BERT): 0.4998014953904383
- Combined Prediction Score: 0.6963305129313909
- Mean Citation Score: 269.500668
- Max Citation Score: 273.4107
- Similarity Product: 216.809742552656

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

Dataset: test