Invention Grant
- Patent Title: Engine error detection system
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Application No.: US15701155Application Date: 2017-09-11
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Publication No.: US10088388B2Publication Date: 2018-10-02
- Inventor: Shikui Kevin Chen , Masaki Nagashima , Li-Chun Chien
- 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: G01M15/11
- IPC: G01M15/11 ; F02D35/02 ; F02D41/22 ; F02D41/00

Abstract:
A variety of methods and arrangements for detecting misfire and other engine-related errors are described. In one aspect, a window is assigned to a target firing opportunity for a target working chamber. There is an attempt to fire a target working chamber during the target firing opportunity. A change in an engine parameter (e.g., crankshaft angular acceleration) is measured during the window. A model (e.g., a pressure model) is used to help determine an expected change in the engine parameter during the target firing opportunity. Based on a comparison of the expected change and the measured change in the engine parameter, a determination is made as to whether an engine error (e.g., misfire) has occurred.
Public/Granted literature
- US20170370804A1 ENGINE ERROR DETECTION SYSTEM Public/Granted day:2017-12-28
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