PATENT CLAIM ANALYSIS

Application Number: 15873042
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-01
Patent Classification: ["060", "602000"]

Abstract:
In a control device for an internal combustion engine, when a target pre/post compressor pressure ratio calculated by a target pre/post compressor pressure ratio calculation part is more than a turbine-limit-time pre/post compressor pressure ratio calculated by a turbine-limit-time pre/post compressor pressure ratio calculation part, an upper limit of the target pre/post compressor pressure ratio is limited by the turbine-limit-time pre/post compressor pressure ratio, and a change rate of the target pre/post compressor pressure ratio is limited by a change rate limit value during a change rate limitation period after upper limit limitation processing starts, thereby preventing the target pre/post compressor pressure ratio from being suddenly fluctuated by a sudden fluctuation in a compressor passage flow rate, and suppressing the occurrence of the over rotation of the turbine and the control hunting.

Claim (Index 7):
The control device for an internal combustion engine according to  claim 1 , further comprising an actual pre/post compressor pressure ratio calculation part, which is configured to calculate an actual pre/post compressor pressure ratio being a ratio of the pressure on the downstream side of the compressor calculated by the compressor downstream-side pressure calculation part to the pressure on the upstream side of the compressor calculated by the compressor upstream-side pressure calculation part,\n wherein the target pre/post compressor pressure ratio calculation part is configured to:\n compare the actual pre/post compressor pressure ratio and the turbine-limit-time pre/post compressor pressure ratio with each other, and calculate, when the actual pre/post compressor pressure ratio is more than the turbine-limit-time pre/post compressor pressure ratio, a decrease-side correction pre/post compressor pressure ratio for correcting the target pre/post compressor pressure ratio limited by the turbine-limit-time pre/post compressor pressure ratio toward a decrease side, based on an amount by which the actual pre/post compressor pressure ratio exceeds the turbine-limit-time pre/post compressor pressure ratio; and \n use, in the upper limit limitation processing, the decrease-side correction pre/post compressor pressure ratio in place of the turbine-limit-time pre/post compressor pressure ratio to limit the target pre/post compressor pressure ratio.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 86.0
- Lexical Diversity: 2.42105
- Patent Class: 60.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13614743', '13908502', '13404424', '14250931', '15131526']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7316143425209274
- 35 USC 102 Novelty (BERT): 0.5303079356402673
- Combined Prediction Score: 0.7114837018328614
- Mean Citation Score: 345.940852
- Max Citation Score: 380.06995
- Similarity Product: 323.07197153334016

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