DE2842998

In order to prevent ignition power losses at low engine speeds and further to provide for the use of ignition control signals of both unipolar and bipolar nature, the invention provides that a Schmitt trigger which generates the principal ignition control signal is actuated by the transducer. The sw...

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Bibliographic Details
Main Authors JUNDT, WERNER., 7140 LUDWIGSBURG, DE, BODIG, BERND, 7022 LEINFELDEN-ECHTERDINGEN, DE
Format Patent
LanguageEnglish
Published 25.09.1986
Edition4
Subjects
BLASTING
COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
IGNITION, OTHER THAN COMPRESSION IGNITION, FORINTERNAL-COMBUSTION ENGINES
LIGHTING
MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
MECHANICAL ENGINEERING
PHYSICS
TESTING
TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
WEAPONS
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Summary:In order to prevent ignition power losses at low engine speeds and further to provide for the use of ignition control signals of both unipolar and bipolar nature, the invention provides that a Schmitt trigger which generates the principal ignition control signal is actuated by the transducer. The switching thresholds of this Schmitt trigger are changeable by a secondary threshold recognition circuit which can shift at least the negative threshold of the principal threshold circuit to more positive values. The invention also includes a delay circuit which prevents the return of the shifted threshold to more negative values. Still further included is a third threshold circuit which is engaged only at some higher engine speed.
Bibliography:Application Number: DE19782842998