发明申请
- 专利标题: METHOD OF DETECTING MISFIRE IN AN INTERNAL COMBUSTION ENGINE
- 专利标题(中): 在内燃机中检测故障的方法
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申请号: US13696185申请日: 2011-05-06
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公开(公告)号: US20130125633A1公开(公告)日: 2013-05-23
- 发明人: Andreas Mair , Thomas Thurner
- 申请人: Andreas Mair , Thomas Thurner
- 申请人地址: AT Gunskirchen
- 专利权人: BRP-POWERTRAIN GMBH & CO. KG
- 当前专利权人: BRP-POWERTRAIN GMBH & CO. KG
- 当前专利权人地址: AT Gunskirchen
- 国际申请: PCT/IB11/01373 WO 20110506
- 主分类号: G01M15/11
- IPC分类号: G01M15/11
摘要:
A method of detecting misfire in an internal combustion engine comprises: sensing a temporal signature of a lateral displacement of the engine, performing a spectral analysis of the temporal signature of the lateral displacement to extract a magnitude of a predetermined frequency, and determining that misfiring in at least one of the plurality of cylinders has occurred based on the magnitude of the predetermined frequency. The predetermined frequency is associated with one of a plurality of orders of the engine. The one of the plurality of orders is representative of engine displacement due to in-cylinder pressures. Other methods of detecting misfire and a vehicle are also presented.
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