Ignition system for internal combustion engine

Details Ignition system for internal combustion engine Ignition system for internal combustion engine

1988-03-25

1989-08-08

Nelli, Raymond A.

Internal-combustion engines

High tension ignition system

Safety device

123644, F02P 100

Patent

active

048542920

ABSTRACT:
An ignition system for an internal combustion engine comprising a semiconductor switching device, which is controlled by a control unit, is disclosed. In response to an output from a device for detecting a shorting breakdown or a heat generation of a power switching device, the power switching device and the ignition coil are cut off from a power supply by a current cut-off device. Even when the power switching device is broken by shorting, the power generation due to continuous energization of the ignition coil is prevented, thereby preventing the ignition coil from being heated abnormally.

REFERENCES:
patent: 3599618 (1971-08-01), Schuette
patent: 3828750 (1974-08-01), Schuette et al.
patent: 3882840 (1975-05-01), Adamian et al.
patent: 4008698 (1977-02-01), Gartner
patent: 4174696 (1979-11-01), Jundt et al.
patent: 4196711 (1980-04-01), Daumer
patent: 4228779 (1980-10-01), Wetzel
patent: 4367722 (1983-01-01), Mizuno
patent: 4380989 (1983-04-01), Takaki
patent: 4738239 (1988-04-01), Haines et al.

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