发明公开
- 专利标题： IGNITION SYSTEM
- 专利标题（中）： 点火系统
-
申请号： EP13710399.0申请日： 2013-03-18
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公开(公告)号： EP2825767A1公开(公告)日： 2015-01-21
- 发明人: HEISE, Volker , LOENARZ, Marco , LORENZ, Frank
- 申请人： Delphi Automotive Systems Luxembourg SA
- 申请人地址： B.P. 29 Avenue de Luxembourg 4940 Bascharage LU
- 专利权人： Delphi Automotive Systems Luxembourg SA
- 当前专利权人： Delphi Automotive Systems Luxembourg SA
- 当前专利权人地址： B.P. 29 Avenue de Luxembourg 4940 Bascharage LU
- 代理机构： Neill, Andrew Peter
- 优先权： EP12159912 20120316
- 国际公布： WO2013135907 20130919
- 主分类号： F02P9/00
- IPC分类号： F02P9/00 ; F02P15/08 ; F02P15/10 ; F02P3/04 ; F02P3/055
摘要：
An ignition system for an internal combustion engine comprises an ignition transformer with two primary windings (L
P1 , L
P2 ). The ignition system is designed to generate, for a given ignition event, a unipolar current (I
SEC ) through the secondary winding (L
SEC ) by way of a control circuit (20) that is configured to first energize and deenergize the first primary winding (L
P1 ) to establish a first electrical arc across the sparkplug electrodes (14) and, when the current (I
SEC ) in the secondary winding reaches, or drops below, a current threshold (I
SEC_TH ), repeatedly energizes and deenergizes the second primary winding (L
P2 ) to establish a plurality of second current pulses across the electrodes in order to maintain the burn phase.
P1 , L
P2 ). The ignition system is designed to generate, for a given ignition event, a unipolar current (I
SEC ) through the secondary winding (L
SEC ) by way of a control circuit (20) that is configured to first energize and deenergize the first primary winding (L
P1 ) to establish a first electrical arc across the sparkplug electrodes (14) and, when the current (I
SEC ) in the secondary winding reaches, or drops below, a current threshold (I
SEC_TH ), repeatedly energizes and deenergizes the second primary winding (L
P2 ) to establish a plurality of second current pulses across the electrodes in order to maintain the burn phase.
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