PATENT CLAIM ANALYSIS

Application Number: 15878865
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-07
Patent Classification: ["060", "600000"]

Abstract:
Methods and systems are provided for improving surge control in a boosted engine system configured with an electric motor to provide electrical boost assistance. Tip-in and tip-out surge are addressed by increasing the opening of a compressor recirculation valve and coordinating the recirculation valve opening with adjustments to an exhaust waste-gate position and a power output by the electric motor. The adjustments enable an intake airflow to be provided that operates the compressor outside a surge region while providing a target boost pressure as operator torque demand increases or decreases.

Claim (Index 17):
A vehicle system, comprising:\n an engine; a turbocharger including an intake compressor coupled to an exhaust turbine via a shaft, and an electric motor coupled to the shaft for providing electric assistance to the turbocharger; a waste-gate including a waste-gate actuator coupled across the exhaust turbine of the turbocharger; a compressor bypass, including a continuously variable compressor recirculation valve (CCRV), coupled across the intake compressor of the turbocharger; a pressure sensor coupled to the intake system downstream of the compressor for estimating a pressure ratio across the compressor; and a controller with computer readable instructions stored on non-transitory memory for:\n estimating a margin to a surge limit of the compressor during a torque transient responsive to input from the pressure sensor; and \n responsive to the margin being less than a threshold,\n increasing an opening of the CCRV to increase the margin to above the threshold; and \n adjusting a power output by the electric motor based on a difference between actual boost pressure with the increased opening of the CCRV and a target boost pressure based on the torque transient.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 86.0
- Lexical Diversity: 1.47619
- Patent Class: 60.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15171375', '13829648', '14942487', '15878212', '13965917']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7713585175051509
- 35 USC 102 Novelty (BERT): 0.5237915910417721
- Combined Prediction Score: 0.7466018248588131
- Mean Citation Score: 358.26286600000014
- Max Citation Score: 382.1254
- Similarity Product: 323.7834354808808

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

Dataset: test