发明授权
- 专利标题: Ion current detector
- 专利标题(中): 离子电流检测器
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申请号: US13226668申请日: 2011-09-07
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公开(公告)号: US08860419B2公开(公告)日: 2014-10-14
- 发明人: Kimihiko Tanaya , Hiroshi Okuda
- 申请人: Kimihiko Tanaya , Hiroshi Okuda
- 申请人地址: JP Tokyo
- 专利权人: Mitsubishi Electric Corporation
- 当前专利权人: Mitsubishi Electric Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Sughrue Mion, PLLC
- 代理商 Richard C. Turner
- 优先权: JP2011-108184 20110513
- 主分类号: F02P17/00
- IPC分类号: F02P17/00 ; F02D41/22 ; F02D35/02
摘要:
In order not to deteriorate the detection properties of an ion current that monitors a combustion state even when a smolder leak is present in an ignition plug of an internal combustion engine, an ion current detector includes an ignition plug of an internal combustion engine, an ignition coil which supplies a high voltage to the ignition plug, a controller which sends an ignition command, a bias capacitor which supplies a bias voltage to the ignition coil, an ignition capacitor which is connected to a primary side winding of the ignition coil, a DC power supply which charges the ignition capacitor and the bias capacitor, a current detecting unit which detects a current flowing through the ignition plug, an ion current detecting unit which detects an ion current from the current detected by the current detecting unit, and a Zener diode which restricts a charging voltage of the bias capacitor.
公开/授权文献
- US20120286791A1 ION CURRENT DETECTOR 公开/授权日:2012-11-15