Method and device for controlling the current in a spark plug

Details Method and device for controlling the current in a spark plug Method and device for controlling the current in a spark plug

2005-06-14

2008-03-25

Huynh, Hai (Department: 3747)

Internal-combustion engines

High tension ignition system

Additional spark energy supply

C123S656000, C324S380000, C324S399000

Reexamination Certificate

active

07347195

ABSTRACT:
The present invention relates to a method of controlling the spark current in a spark plug (8), comprising a voltage source (1; 14), an ignition system (2) connected to the voltage source, and a spark plug (8) connected to the ignition system, which ignition system (2) comprises an ignition coil (3) and at least one regulating unit (5, 6) as well as a control unit (4), enabling control of the intensity and/or duration of the spark current, said ignition coil (3) comprising a secondary side (6, 31) arranged to be controlled in order to control the duration of the spark in Arc Discharge Mode. The invention also relates to an ignition device.

REFERENCES:
patent: 6196054 (2001-03-01), Okamura et al.
patent: 6202474 (2001-03-01), Takahashi et al.
patent: 6205844 (2001-03-01), Morita et al.
patent: 6222368 (2001-04-01), Inagaki et al.
patent: 6275041 (2001-08-01), Okamura et al.
patent: 6336355 (2002-01-01), Sasaki et al.
patent: 6779517 (2004-08-01), Sakakura
patent: 6954074 (2005-10-01), Zhu et al.

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