公开(公告)号：US20210003088A1

公开(公告)日：2021-01-07

申请号：US17026706

申请日：2020-09-21

Applicant: Tula Technology, Inc.

Inventor： Shikui Kevin CHEN ,  Aditya MANDAL ,  Li-Chun CHIEN ,  Elliott ORTIZ-SOTO

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.

公开(公告)号：US20220010744A1

公开(公告)日：2022-01-13

申请号：US17407984

申请日：2021-08-20

Applicant: Tula Technology, Inc.

Inventor： Shikui Kevin CHEN ,  Aditya MANDAL ,  Li-Chun CHIEN ,  Elliott ORTIZ-SOTO

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.