PATENT CLAIM ANALYSIS

Application Number: 16139585
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-01
Patent Classification: ["701", "043000"]

Abstract:
An electronic control unit diagnoses a short failure of an inverter FETs and diagnoses whether the failure of the FET-short detecting section has occurred. The unit controls a motor through an inverter including a bridge having an upper-stage FETs and a lower-stage FETs via an MCU, having: an FET-short detecting section to detect a short failure of the upper-stage FETs and the lower-stage FETs based on respective connection point voltages of the upper-stage FETs and the lower-stage FETs; and a diagnostic function to detect a failure of the FET-short detecting section. The diagnostic function diagnoses the failure of the FET-short detecting section at start up and turns-OFF the upper-stage FETs and the lower-stage FETs when the failure is detected. The FET-short detecting section diagnoses the short failure of the upper-stage FETs and the lower-stage FETs when the failure of the FET-short detecting section is not detected.

Claim (Index 1):
An electronic control unit that comprises a bridge having upper-stage field-effect transistors (FETs) and lower-stage FETs and driving-controls a three-phase blushless motor, via an inverter being supplied a power supply VR, by inputting a duty signal of a pulse width modulation (PWM) calculated in a micro controller unit (MCU) into a gate driving section, comprising:\n a reverse connection protective FET which is interposed between a battery and said power supply VR and turns-ON/OFF with a switching signal from said MCU; a diagnostic resistor voltage-dividing circuit which is supplied said power supply VR and outputs voltage-divided voltages obtained by voltage-dividing connection point voltages of said upper-stage FETs and said lower-stage FETs; an FET-short detecting section which is supplied said power supply VR, and detects at least one-side short failure of said upper-stage FETs and said lower-stage FETs based on said voltage-divided voltages and outputs an error notification; and a detecting-section-failure diagnostic function which inputs said error notification, is included in said MCU, and detects a failure of said FET-short detecting section, wherein said detecting-section-failure diagnostic function diagnoses said failure of said FET-short detecting section at start up and turns-OFF said upper-stage FETs and said lower-stage FETs when said failure of said FET-short detecting section is detected, and wherein said FET-short detecting section diagnoses said short failure of said upper-stage FETs and said lower-stage FETs when said failure of said FET-short detecting section is not detected.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 97.0
- Lexical Diversity: 2.88679
- Patent Class: 701.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16139635', '16139664', '15746682', '16080061', '15536396']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4780594500877066
- 35 USC 102 Novelty (BERT): 0.6426584609944095
- Combined Prediction Score: 0.494519351178377
- Mean Citation Score: 466.665898
- Max Citation Score: 602.4241
- Similarity Product: 596.3949454485594

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