PATENT CLAIM ANALYSIS

Application Number: 16405087
Application Type: Utility
Filing Date: 2019-05
Publication Date: 2019-11
Patent Classification: ["422", "168000"]

Abstract:
A purification control device ( 12 ) controls a urea water injector ( 5 ) for supplying urea as a reducing agent to an SCR catalyst ( 4 ). The purification control device ( 12 ) sets a pre-deterioration maximum occlusion amount based on the SCR catalyst temperature, and estimates the concentration of ammonia discharged from the SCR catalyst ( 4 ), as an estimated ammonia concentration, based on upstream NOx concentration information, downstream NOx concentration information, urea injection amount information, the pre-deterioration maximum occlusion amount, and ammonia occlusion amount information. The purification control device ( 12 ) acquires downstream ammonia concentration information. When the downstream ammonia concentration is greater than the estimated ammonia concentration, the purification control device ( 12 ) decreases the supply amount of urea from the urea water injector ( 5 ).

Claim (Index 6):
The purification control device as claimed in  claim 2 , further comprising:\n a target setting unit configured to set a target occlusion amount which is a target value for an amount of ammonia to be occluded in the selective reduction catalyst; and a supply amount control unit configured to control the supply amount so that the amount of ammonia to be occluded in the selective reduction catalyst coincides with the target occlusion amount, wherein the decreasing unit decreases the supply amount by updating the target occlusion amount using, as a new target occlusion amount, a value obtained by multiplying the target occlusion amount and the correction coefficient.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 100.0
- Lexical Diversity: 2.69091
- Patent Class: 422.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15170045', '15170177', '15787984', '12936706', '12917179']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8010655607403213
- 35 USC 102 Novelty (BERT): 0.5422657443428558
- Combined Prediction Score: 0.7751855791005747
- Mean Citation Score: 356.48528600000014
- Max Citation Score: 417.83597
- Similarity Product: 329.0276059029233

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

Dataset: test