PATENT CLAIM ANALYSIS

Application Number: 16080061
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-03
Patent Classification: ["701", "041000"]

Abstract:
A motor control unit that is connected to a motor release switch which includes FETs and is disposed between an inverter and a motor, including: a control section to detect an assist state of the inverter, to turn-ON or turn-OFF a control of the inverter based on a detection result and to detect whether abnormality is existed or not; a motor rotational speed detecting section to detect a motor rotational speed; an energy calculating section to calculate an energy based on the motor rotational speed; a judging section to turn-OFF all of the FETs of the motor release switch when the energy is within an area of safety operation; and a state detecting section to detect whether abnormality is existed or not based on information from an abnormality detecting section that detects abnormality of the sensors and the inverter, wherein the control section turns-ON the control of the inverter when the state detecting section does not detect abnormality and turns-OFF the control of the inverter when the state detecting section detects abnormality.

Claim (Index 16):
A motor control unit that driving-controls a motor by an inverter based on a current command value calculated with a steering torque from a torque sensor, and a motor release switch comprising field-effect transistors (FETs) is connected between said inverter and said motor, comprising:\n a control section to detect states of sensors including said torque sensor and an assist state of said inverter, to turn-ON or turn-OFF a control of said inverter based on a detection result and to detect whether an abnormality is existed or not; a motor rotational speed detecting section to detect a motor rotational speed of said motor; an energy calculating section to select a motor back electromotive force voltage (a motor back-EMF) and regenerative currents by using a data table based on said motor rotational speed and to calculate an energy by using data thereof; a judging section to turn-OFF all of said FETs of said motor release switch when said energy is compared with an area of safety operation of said FETs and said energy is within said area of safety operation; and a state detecting section to detect whether an abnormality is existed or not based on information from an abnormality detecting section that detects an abnormality of said sensors and said inverter, wherein said control section turns-ON said control of said inverter when said state detecting section does not detect said abnormality and turns-OFF said control of said inverter when said state detecting section detects said abnormality, wherein a temperature detecting section to detect a temperature of said FETs or a temperature around said FETs is provided, and said control section more accurately calculates said area of safety operation depending on said temperature by calculating said area of safety operation based on a temperature detection value that is detected at said temperature detecting section, wherein a timer is provided in said judging section, wherein said timer is reset when said energy is out of said area of safety operation, and said timer is counted-up when said energy is within said area of safety operation, wherein a time that said energy is within said area of safety operation is measured by said timer, and an FET-OFF signal is outputted when a state that said energy is within said area of safety operation continues for a predetermined time, and wherein a current to calculate said energy is selected from said regenerative currents depending on an abnormality mode detected at said state detecting section.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 96.0
- Lexical Diversity: 2.91935
- Patent Class: 701.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15317572', '15751315', '15746682', '15776907', '15507814']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4158378229978151
- 35 USC 102 Novelty (BERT): 0.552132316870829
- Combined Prediction Score: 0.4294672723851165
- Mean Citation Score: 296.5399740000001
- Max Citation Score: 408.09158
- Similarity Product: 399.12489426321633

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