PATENT CLAIM ANALYSIS

Application Number: 16068484
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-01
Patent Classification: ["073", "862080"]

Abstract:
The purpose of the present invention is to provide a test piece characteristic estimation method capable of quickly measuring the moment of inertia of a test piece while taking loss resulting from rotational friction of the test piece into consideration. This test piece characteristic estimation method is provided with a step (S 1 ) for measuring a first transfer function G 1  from a torque current command for a dynamometer to output from a shaft torque sensor by vibrationally operating the dynamometer, a step (S 2 ) for measuring a second transfer function G 2  from the torque current command to the output of a dynamo rotation speed sensor by vibrationally operating the dynamometer, and steps (S 3  and S 4 ) for calculating the value of a ratio obtained by dividing the second transfer function G 2  by the first transfer function G 1  at a prescribed measurement frequency ω k  and using the ratio value to calculate a moment of inertia Jeg and a rotational friction Ceg.

Claim (Index 7):
A test piece characteristic estimation device for estimating a moment of inertia with an output shaft of a test piece as a rotation shaft, the test piece characteristic estimation device comprising: a dynamometer that is joined with a test piece by a connecting shaft;\n a shaft torque sensor that detects shaft torque generated at the connecting shaft; a revolution speed detector that detects a revolution speed of an output shaft of the test piece or the dynamometer; a first transfer function measuring means for measuring a first transfer function from a torque current command to the dynamometer until an output of the shaft torque sensor by vibrationally operating the dynamometer; a second transfer function measuring means for measuring a second transfer function from the torque current command until an output of the revolution speed detector by vibrationally operating the dynamometer; and a moment of inertia estimating means for calculating values of a real part and an imaginary part at a predetermined measurement frequency of a ratio obtained by dividing the second transfer function by the first transfer function, and estimating the moment of inertia using the values of the real part and the imaginary part of the ratio.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 95.0
- Lexical Diversity: 2.25641
- Patent Class: 73.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16319709', '15542890', '14891287', '12742383', '15027932']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6776895539644661
- 35 USC 102 Novelty (BERT): 0.5123950399615422
- Combined Prediction Score: 0.6611601025641737
- Mean Citation Score: 257.08032000000003
- Max Citation Score: 305.0733600000001
- Similarity Product: 259.29890726946843

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

Dataset: test