Invention Application
- 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.: US20210003088A1Publication Date: 2021-01-07
- 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
- Main IPC: F02D41/14
- IPC: F02D41/14 ; F01N13/10 ; F02D41/00 ; F02D41/22 ; F02B5/02 ; 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.
Public/Granted literature
- US11125175B2 Machine learning for misfire detection in a dynamic firing level modulation controlled engine of a vehicle Public/Granted day:2021-09-21
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