PATENT CLAIM ANALYSIS

Application Number: 16005486
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-12
Patent Classification: ["701", "022000"]

Abstract:
Methods and systems are provided for on-board diagnostics of an exhaust gas recirculation (EGR) system of an engine coupled to a hybrid vehicle. In one example, a method may include, upon receiving an engine shut-down request, prior to engine spin-down, rotating the engine at an idling speed via an electric motor and carrying out diagnostics of the EGR system. EGR diagnostics may include estimating a ratio of accumulated difference between a measured EGR flow and an EGR limit to accumulated intake air flow, over a duration of time, and indicating EGR system degradation in response to the ratio being higher than a threshold.

Claim (Index 13):
The method of  claim 11 , wherein accumulating each of the EGR mass flow error and the intake air flow includes retrieving each of an accumulated EGR mass flow error and an accumulated intake air flow from an immediately previous period of engine rotation at the idling speed, and continuing accumulating each of the EGR mass flow error and the intake air flow until the threshold duration is reached, the EGR mass flow error estimated based on the measured EGR flow and a tolerance threshold.

Metadata:
- Claim Count in Document: 16.0
- Percentile: 94.0
- Lexical Diversity: 1.67647
- Patent Class: 701.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15414510', '13973672', '15664892', '14052637', '15260170']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4942059871097382
- 35 USC 102 Novelty (BERT): 0.5268683410962005
- Combined Prediction Score: 0.4974722225083844
- Mean Citation Score: 282.6110460000001
- Max Citation Score: 361.53275
- Similarity Product: 266.2764645983577

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

Dataset: test