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 4):
The rotary electric machine controller according to  claim 3 , wherein\n the rotary electric machine controller further comprising: a PWM reference signal generating unit that generates a reference signal corresponding to the duty; wherein when an interval of one cycle of the reference signal is defined as a control cycle; the plurality of switching elements include high-potential switching elements connected to a high potential line; a ratio of a period when all the high-potential switching elements are on all the high-potential switching elements are or off with, respect to the control cycle, is defined as an invalid period ratio; and a ratio of a period when at least one of the high-potential switching elements is on with respect to the control cycle is defined as a valid period ratio; the capacitor current estimating unit calculates the current flowing through the capacitor based on the invalid period ratio and the valid period ratio.

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): 0.6713757829795017
- 35 USC 102 Novelty (BERT): 0.4890178192705754
- Combined Prediction Score: 0.6531399866086091
- Mean Citation Score: 218.68336600000004
- Max Citation Score: 236.02963
- Similarity Product: 179.21978664617

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