Invention Grant
- Patent Title: System and method for detecting stochastic pre-ignition
- Patent Title (中): 随机预燃检测系统及方法
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Application No.: US13775628Application Date: 2013-02-25
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Publication No.: US08973429B2Publication Date: 2015-03-10
- Inventor: J. Michael Gwidt , Kevin M. Luchansky , Craig M. Sawdon , Wajdi B. Hamama
- Applicant: GM Global Technology Operations LLC
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Main IPC: G01M15/12
- IPC: G01M15/12 ; G01M15/11

Abstract:
A system according to the principles of the present disclosure includes a vibration intensity module and a stochastic pre-ignition (SPI) detection module. The vibration intensity module determines a vibration intensity of an engine over a first engine cycle and a second engine cycle. The first engine cycle and the second engine cycle each correspond to a predetermined amount of crankshaft rotation. The SPI detection module selectively detects stochastic pre-ignition when the vibration intensity of the first engine cycle is less than a first threshold and the vibration intensity of the second engine cycle is greater than a second threshold.
Public/Granted literature
- US20140238120A1 SYSTEM AND METHOD FOR DETECTING STOCHASTIC PRE-IGNITION Public/Granted day:2014-08-28
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