PATENT CLAIM ANALYSIS

Application Number: 15958095
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["318", "400090"]

Abstract:
A brushless motor ( 18 ) which supplies currents to coils (U 1 , U 2 , V 1 , V 2 , W 1 , and W 2 ) and rotates a rotor ( 27 ), the brushless motor comprising a control apparatus ( 37 ) which switches and selectively executes: first energization control to start energization to the coils (U 1 , U 2 , V 1 , V 2 , W 1 , and W 2 ) at first timing, and to continue the energization for a first period to control the rotation number of the rotor ( 27 ); and second energization control to start energization to the coils (U 1 , U 2 , V 1 , V 2 , W 1 , and W 2 ) at second timing advanced by an electric angle with respect to the first timing, and to continue the energization for a second period longer than the first period to control the rotation number of the rotor ( 27 ).

Claim (Index 1):
A wiper apparatus, comprising:\n a wiper blade which wipes off foreign objects on a front windshield of a vehicle; a wiper arm to which a wiper blade is attached; and a motor apparatus configured to drive the wiper arm, wherein the motor apparatus comprises:\n a brushless motor which drives the wiper arm; \n a driving apparatus which controls the brushless motor; \n a control board provided with the driving apparatus; and \n a gear case in which the driving apparatus and the control board are accommodated, \n the brushless motor has:\n a stator having coils to which an electric current is supplied; and \n a rotor formed with a worm, the rotor being rotated by a rotating magnetic field formed by the stator, \n the gear case is provided with:\n a worm wheel meshed with the worm; and \n a pivot shaft which is integrally rotated with the worm wheel, \n the driving apparatus has a control unit which switches and selectively executes:\n first energization control to start energization to the coils at first timing, and to continue the energization for a first period to control the rotation number of the rotor; and \n second energization control to start energization to the coils at second timing advanced by an electric angle with respect to the first timing, and to continue the energization for a second period longer than the first period to control the rotation number of the rotor, \n wherein the second timing is advanced with respect to the first timing by an electric angle equal to or more than 30 degrees, and equal to or less than 60 degrees, wherein the first period is set to an electric angle of 120 degrees, and the second period is set, on the basis of the electric angle by which the second timing is advanced with respect to the first timing, within a range equal to or more than an electric angle of 135 degrees, and equal to or less than an electric angle of 165 degrees, wherein the first energization control is executed by a rectangular current, and the second energization control is executed by a current smoother in waveform than the rectangular current.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 91.0
- Lexical Diversity: 3.33333
- Patent Class: 318.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15490966', '14394628', '11881243', '12812426', '14023884']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7192119131742777
- 35 USC 102 Novelty (BERT): 0.5295454475059098
- Combined Prediction Score: 0.7002452666074409
- Mean Citation Score: 319.031202
- Max Citation Score: 369.17703
- Similarity Product: 291.8989984471017

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