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 25):
A motor control unit that driving-controls a motor by an inverter comprising first field-effect transistors (FETs) based on a current command value calculated by using at least a steering torque from a torque sensor, and a motor release switch comprising second FETs is connected between said inverter and said motor, comprising:\n a control section including a micro controller unit (MCU) 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 calculate a motor back-electromotive force voltage (a motor back-EMF) and a regenerative current energy by means of a data table based on said motor rotational speed; an energy calculating section to select a motor back-EMF and a regenerative current by means of a data table based on said motor rotational speed and to calculate an energy by using data thereof; a judging section to judge that a timer is provided, said energy is compared with an area of safety operation of said second FETs, said timer is reset when said energy is out of said area of safety operation, said timer is counted-up when said energy is within said area of safety operation, a time that said energy is within said area of safety operation is measured by said timer, and all of said second FETs are turned-OFF when said time continues for a predetermined time; a state detecting section to detect whether said abnormality is existed or not based on information from an abnormality detecting section that detects said abnormality of said sensors and said inverter; a temperature detecting section to detect a temperature of said first FETs or a temperature around said first FETs; and a recording device to record at least said temperature detected at said temperature detecting section, a first date and time information and a first temperature information which are recorded at occurrence of an abnormality detection at said state detecting section and a reset time of said MCU, a second date and time information and a second temperature information which are recorded at a recovering time of said MCU, 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 said judging section obtains a first difference between said first date and time information and said second date and time information as well as a second difference between said first temperature information and said second temperature information, and judges whether said first difference and said second difference are respectively within predetermined ranges or not, and wherein said control section determines whether currents flowing said motor are limited or not based on a judgment result.

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): 0.4171954245742876
- 35 USC 102 Novelty (BERT): 0.5500823065799829
- Combined Prediction Score: 0.4304841127748572
- Mean Citation Score: 296.5399740000001
- Max Citation Score: 408.09158
- Similarity Product: 369.0474215083409

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