PATENT CLAIM ANALYSIS

Application Number: 16095194
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-05
Patent Classification: ["701", "003000"]

Abstract:
The invention proposes a method for characterizing the amplitude (AS) of play (S(t)) in an electromechanical actuator ( 10 ), the electromechanical actuator comprising an electric motor ( 11 ) and a movable element ( 1 ) that is able to be moved by the motor, the actuator ( 10 ) comprising an upstream sensor ( 41 ) suitable for measuring a position (Xl(t)) of the motor and a downstream sensor ( 42 ) suitable for measuring a position (X2(t)) of the movable element, and a force sensor ( 43 ) suitable for measuring a load (Fl(t)) applied to the movable element, the method comprising steps of: (El) measuring the position (Xl(t)) of the motor, the position (X2(t)) of the movable element and the load (Fl(t)) applied to the movable element using the three sensors; (E2) on the basis of a computer model of the actuator and of the measured position (Xl(t)) of the motor, of the measured position (X2(t)) of the movable element and of the measured load (Fl(t)) applied to the movable element, estimating a value of the amount of mechanical play (S(t)) using a state observer and considering the play (S(t)) to be a state component; and (E3) determining the amplitude (AS) of the play from a set of values of the dynamic variable, which values are obtained in the preceding step at various times (t).

Claim (Index 10):
A method for characterisation of the amplitude (\u0394S) of a play (S(t) of an electromechanical actuator, the electromechanical actuator comprising an electric motor and a mobile element capable of being set in motion by the motor, said play (S) being defined as a distance or an angle (m, rad) which either of the motor and of the mobile element has to travel before it can transmit a movement or a stress to the other,\n the actuator comprising an upstream sensor suitable for measuring a position of the motor (X1(t)) and a downstream sensor suitable for measuring a position of the mobile element (X2(t)), as well as a force sensor suitable for measuring a load applied to the mobile element (Fl(t)), the method comprising steps of: measuring the position of the motor (X1(t)), the position of the mobile element (X2(t)) and the load applied (Fl(t)) to the mobile element by means of the three sensors, from computer modelling of the actuator and the measured position of the motor (X1(t)), of the measured position of the mobile element (X2(t)) and of the load applied (Fl(t)) to the measured mobile element, estimation of a value of mechanical play (S(t)) by means of a state observer by considering the play (S(t)) as a component of the state, the play S(t) being modelled in the form:\n {dot over (S)} ( t )=0+ b ( t ) \n where S is the play, b is random white noise of known spectral density, and t is the time, one of the components of the state of the state observer being a deviation \u03b4X(t) between the measured position of the mobile element X2(t) and the measured position of the motor X1(t), such that the state vector x is expressed in the following form:\n x =[\u03b4 X{dot over (\u03b4)}X S ] T  \n where \u03b4X=X2\u2212X1, and the magnitude of measured output of the state observer is expressed in the following form:\n y =[\u03b4 X ] T  \n determination of the amplitude of the play (\u0394S) from a set of values of the dynamic variable obtained at the preceding step for different instants (t).

Metadata:
- Claim Count in Document: 20.0
- Percentile: 97.0
- Lexical Diversity: 3.51685
- Patent Class: 701.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['10479106', '14240752', '15526489', '13410792', '13130576']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.368233606252247
- 35 USC 102 Novelty (BERT): 0.4897189162866745
- Combined Prediction Score: 0.3803821372556897
- Mean Citation Score: 168.02610800000005
- Max Citation Score: 194.2058
- Similarity Product: 133.77561815903186

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

Dataset: test