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 20):
The system of  claim 17 , wherein the accumulated EGR mass flow includes a summation of EGR mass flow estimated via a pressure sensor coupled to the EGR line over a duration of engine rotation at the idling speed, and wherein the accumulated intake air mass flow includes a summation of intake air mass flow estimated via a manifold air flow sensor coupled to the intake passage, over a duration of engine rotation at the idling speed.

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): 0.4940458554996652
- 35 USC 102 Novelty (BERT): 0.5266897151631307
- Combined Prediction Score: 0.4973102414660117
- Mean Citation Score: 282.6110460000001
- Max Citation Score: 361.53275
- Similarity Product: 274.310611426726

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