PATENT CLAIM ANALYSIS

Application Number: 15862482
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-07
Patent Classification: ["060", "274000"]

Abstract:
Methods and systems are provided for waking up a powertrain control module of an engine-driven vehicle during engine soak to perform an offset test of an exhaust NOx sensor. In one example, a method includes determining a duration to delay waking up the powertrain control module based on exhaust temperature at vehicle-off, waking up the powertrain control module after the duration has expired, and then initiating heating of the NOx sensor. After the NOx sensor lights off, heating continues for an additional duration before offset testing of the NOx sensor is performed.

Claim (Index 14):
A system comprising:\n a NOx sensor positioned in an engine exhaust system downstream of a selective catalytic reduction (SCR) catalyst; an electronic timer; and a controller in electrical communication with the electronic timer and the NOx sensor, the controller having computer-readable instructions for:\n at a vehicle-off event, determining a sleep duration for the controller to power off after the vehicle-off event prior to initiating heating of the NOx sensor, sending the sleep duration to the electronic timer and starting the timer, and powering off after sending the sleep duration to the electronic timer; \n wherein the electronic timer powers on the controller after the sleep duration expires, and wherein the controller includes further computer-readable instructions for:\n responsive to powering on, initiating heating of the NOx sensor; \n at light-off of the NOx sensor, detecting NOx sensor output and determining a post-light-off heating duration to delay before performing a NOx sensor offset test based on the detected NOx sensor output; and \n initiating the NOx sensor offset test after the post-light-off heating duration expires.

Metadata:
- Claim Count in Document: 19.0
- Percentile: 86.0
- Lexical Diversity: 1.73684
- Patent Class: 60.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14739834', '15645424', '13688347', '15699210', '15804054']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6704402350121227
- 35 USC 102 Novelty (BERT): 0.47751095968051
- Combined Prediction Score: 0.6511473074789614
- Mean Citation Score: 184.108728
- Max Citation Score: 210.08472000000003
- Similarity Product: 160.80844749847415

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