Invention Grant
US09200981B2 Methods and apparatus for engine analysis using internal electrical signals
有权
使用内部电气信号进行发动机分析的方法和装置
- Patent Title: Methods and apparatus for engine analysis using internal electrical signals
- Patent Title (中): 使用内部电气信号进行发动机分析的方法和装置
-
Application No.: US13835067Application Date: 2013-03-15
-
Publication No.: US09200981B2Publication Date: 2015-12-01
- Inventor: Eric G. Horlbeck , John Thompson , Emery Carr , Allen C. Eberhardt
- Applicant: Thompson Automotive Labs, LLC
- Applicant Address: US NC Fuquay Varina
- Assignee: Thompson Automotive Labs LLC
- Current Assignee: Thompson Automotive Labs LLC
- Current Assignee Address: US NC Fuquay Varina
- Agency: Myers Bigel Sibley & Sajovec, P.A.
- Main IPC: G01M15/11
- IPC: G01M15/11 ; G01M15/12 ; F02D41/14 ; G01L1/10 ; G01L5/00 ; F02D41/28
Abstract:
A method of analyzing an engine for misfire activity includes receiving an electrical signal associated with a plurality of cycles of the engine, identifying energy spikes in the electrical signal associated with cylinder firings in the engine, generating engine speed estimates based on spacing between the energy spikes, and analyzing anomalies in the engine speed estimates to identify misfire activity in the engine. Also described is a method of analyzing an engine for misfire activity including receiving an electrical signal associated with the engine, detecting AC ripple in the electrical signal, generating engine speed estimates in response to the detected AC ripple, and analyzing anomalies in the engine speed estimates to identify misfire activity in the engine.
Public/Granted literature
- US20130340512A1 Methods and Apparatus for Engine Analysis Using Internal Electrical Signals Public/Granted day:2013-12-26
Information query
