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 3):
The rotary electric machine controller according to  claim 1 , wherein\n when one set of ON and OFF states of the switching element is defined as a switching cycle and a ratio of an ON period with respect to the switching cycle is defined as a duty, the rotary electric machine controller further comprising: a PWM (pulse width modulation) command value calculation unit that calculates the duty; and a drive circuit that controls the inverter based on the duty; wherein the capacitor current estimating unit estimates a current flowing through the capacitor based on the duty and the current flowing through the rotary electric machine.

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): 0.6728989990367003
- 35 USC 102 Novelty (BERT): 0.4815592780809938
- Combined Prediction Score: 0.6537650269411297
- Mean Citation Score: 218.68336600000004
- Max Citation Score: 236.02963
- Similarity Product: 195.9106383995992

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