PATENT CLAIM ANALYSIS

Application Number: 16034701
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["701", "022000"]

Abstract:
The present disclosure relates to active vibration control of a hybrid electric vehicle. One form provides a method that may include setting up a period of fast Fourier transform (FFT) and performing FFT of an engine speed or a motor speed corresponding to the period of the FFT from a reference angle signal; setting up a reference spectrum; extracting vibration components to be removed based on information of the reference spectrum; selecting and adding a removal object frequency from the vibration of each frequency and performing inverse FFT; determining a basic amplitude ratio according to the engine speed and the engine load; determining an adjustable rate which decreases an anti-phase torque as a change amount of the engine speed is decreased; and performing active vibration control of each frequency based on the information of the basic amplitude ratio, the adjustable rate, and the engine torque.

Claim (Index 1):
An apparatus for active vibration control of a hybrid electric vehicle including an engine and a motor as a power source, comprising:\n a position sensor configured to detect position information of the engine or the motor; and a controller configured to select a reference angle signal on the basis of a signal from the position sensor, perform fast Fourier transform (FFT) analysis, extract a vibration component to be removed through the FFT analysis, generate a reference signal by performing inverse FFT, and perform active vibration control of each frequency by reflecting a basic amplitude ratio, a predetermined adjustable rate which decreases an anti-phase torque as a change amount of the engine speed is decreased, and an engine torque to the reference signal.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 95.0
- Lexical Diversity: 2.03896
- Patent Class: 701.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15962519', '16034727', '15258171', '15261348', '15263917']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4363770797694807
- 35 USC 102 Novelty (BERT): 0.5013060601199684
- Combined Prediction Score: 0.4428699778045295
- Mean Citation Score: 294.1864240000001
- Max Citation Score: 300.48932
- Similarity Product: 284.0527640217829

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