PATENT CLAIM ANALYSIS

Application Number: 15910292
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["318", "400020"]

Abstract:
A capacitor current estimating unit estimates a capacitor current based on phase currents. A capacitor temperature estimating unit estimates a capacitor temperature based on the capacitor current. A motor controller can accurately estimate not only a temperature of a switching element but also the capacitor temperature based on the phase currents. As a result, the capacitor does not need to have excessive heat characteristics. Further, a current limiting unit limits a current flowing from a battery to an inverter based on the capacitor temperature. Therefore, an amount of temperature change is not over-estimated due to overheating of the capacitor. As a result, excessive current limitation can be avoided and the performance of the motor can be demonstrated.

Claim (Index 6):
A rotary electric machine controller according to  claim 1 , wherein\n the rotary electric machine controller further comprising: a circuit board on which the inverter and the capacitor are mounted; a heat sink that dissipates heat of the switching elements; a temperature detecting unit that detects a temperature of the circuit board, a temperature of the heat sink or an outside air temperature; wherein when a temperature detected by the temperature detecting unit is defined as a detected temperature, the capacitor temperature estimating unit estimates a temperature change amount of the capacitor based on the current flowing through the capacitor, and estimates the temperature of the capacitor based on the temperature change amount of the capacitor and the detected temperature.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 90.0
- Lexical Diversity: 2.24561
- Patent Class: 318.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15880264', '14182309', '14140922', '13406883', '12247415']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6722091760217496
- 35 USC 102 Novelty (BERT): 0.4849383042082406
- Combined Prediction Score: 0.6534820888403987
- Mean Citation Score: 218.68336600000004
- Max Citation Score: 236.02963
- Similarity Product: 188.3471095179605

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

Dataset: test