Invention Grant
- Patent Title: Machine learning for misfire detection in a dynamic firing level modulation controlled engine of a vehicle
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Application No.: US17026706Application Date: 2020-09-21
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Publication No.: US11125175B2Publication Date: 2021-09-21
- Inventor: Shikui Kevin Chen , Aditya Mandal , Li-Chun Chien , Elliott Ortiz-Soto
- Applicant: Tula Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: Tula Technology, Inc.
- Current Assignee: Tula Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Beyer Law Group LLP
- Main IPC: F02D41/14
- IPC: F02D41/14 ; F02B5/02 ; F01N13/10 ; F02D41/00 ; F02D41/22 ; F02B9/04 ; G06N20/00 ; G06N5/04

Abstract:
Using machine learning for cylinder misfire detection in a dynamic firing level modulation controlled internal combustion engine is described. In a classification embodiment, cylinder misfires are differentiated from intentional skips based on a measured exhaust manifold pressure. In a regressive model embodiment, the measured exhaust manifold pressure is compared to a predicted exhaust manifold pressure generated by neural network in response to one or more inputs indicative of the operation of the vehicle. Based on the comparison, a prediction is made if a misfire has occurred or not. In yet other alternative embodiment, angular crank acceleration is used as well for misfire detection.
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