PATENT CLAIM ANALYSIS

Application Number: 15767662
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-09
Patent Classification: ["180", "065510"]

Abstract:
An electrically power assisted wheelchair includes a hand rim, a wheel that is rotated by receiving a torque applied to the hand rim, and a drive controller configured or programmed to apply auxiliary power to the wheel based on the torque applied to the hand rim. The drive controller is configured or programmed to decelerate rotation of the wheel when the wheel is rotating and no torque is applied to the hand rim in a brake mode in which a brake torque acting in a direction reverse to a rotation direction of the wheel is applied to the wheel.

Claim (Index 20):
A method of controlling an electrically power assisted wheelchair, the method comprising:\n applying auxiliary power to a wheel based on a torque applied to a hand rim of the electrically power assisted wheelchair, which includes the hand rim and the wheel that is rotated by receiving the torque applied to the hand rim; and decelerating rotation of the wheel that is rotating in a state in which no torque is applied to the hand rim by performing a brake mode in which a brake torque acting in a direction reverse to a rotation direction of the wheel is applied to the wheel; wherein the brake torque has a magnitude in accordance with a brake current value obtained by multiplying a reference current value by a gain, the reference current value is obtained by converting a rotation velocity of the wheel based on a velocity-dependent conversion rule that increases the reference current value in accordance with an increase of the rotation velocity of the wheel, and the gain is obtained by converting an elapsed time based on a time-dependent conversion rule that increases the gain in accordance with an increase of the elapsed time after the torque applied to the hand rim becomes zero.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 91.0
- Lexical Diversity: 2.28889
- Patent Class: 180.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15310073', '13157757', '15025313', '13226692', '14234799']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7579209160687749
- 35 USC 102 Novelty (BERT): 0.4774095323453436
- Combined Prediction Score: 0.7298697776964318
- Mean Citation Score: 189.315884
- Max Citation Score: 201.09367
- Similarity Product: 152.09257879480958

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