Internal-combustion engines – High tension ignition system – Current or voltage sensing in coil primary
Patent
1996-12-24
1998-07-07
Argenbright, Tony M.
Internal-combustion engines
High tension ignition system
Current or voltage sensing in coil primary
123630, 123651, F02P 304
Patent
active
057753105
ABSTRACT:
An igniter for an internal combustion engine includes a switching element performing flow and break control for a primary current flowing through an ignition coil depending upon a spark control signal output from an electronic engine control unit and a current limiting circuit limiting a current flowing through the switching element. The switching element is formed with an insulated gate bipolar transistor. The igniter further comprises a current detecting load element for detecting current flowing through the insulated gate bipolar transistor, and a diode being provided between the current detecting load element and the self-isolation N-MOS transistor, which diode having an opposite temperature coefficient to that of the current detecting load element. Also, in order to certainly provide a contact current of a connection terminal between the electronic engine control unit and the igniter and to assure detecting of circuit breakage between the electronic engine control unit and the igniter, an input impedance of the igniter is set intentionally or a current adjusting bleeder resistor is set to flow a current greater than or equal to 1 mA through the connecting portion.
REFERENCES:
patent: 4993396 (1991-02-01), Miura
patent: 5045964 (1991-09-01), Bennett et al.
patent: 5571245 (1996-11-01), Ooyabu et al.
patent: 5609145 (1997-03-01), Kojima et al.
patent: 5623912 (1997-04-01), Kelly
"Patent Abstracts of Japan", vol. 14, No. 375 (M1010), Abstract of Jp-02-136563, Aug. 1990.
Fukatsu Katsuaki
Ito Takahashi
Sugiura Noboru
Argenbright Tony M.
Hitachi , Ltd.
Hitachi Car Engineering Co. Ltd.
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