Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1986-12-29
1989-01-03
Argenbright, Tony M.
Internal-combustion engines
Charge forming device
Fuel injection system
36443104, F02P 515
Patent
active
047949007
ABSTRACT:
An ignition system for an internal combustion engine with the following structure: a pulse generator generates synchronously with the crankshaft rotation angle pulses and one reference pulse; within a first angle interval of the crankshaft rotation, for the determination of a speed value, clock pulses are counted and a load value is converted into a multiple-bit value; accordingly a characteristic field storage is sampled; an ignition counter is preset, which delivers, by the counting of angle pulses, a switching pulse for the ignition signal; the speed value and the load value are stored at the end of the time basis in buffers; the characteristic field storage comprises multiple-bit ignition values for the determination of the ignition angle and for the presetting of the ignition counter. The technical problem is the provision of an ignition system, which has a high detection speed so that within the periods available also at high speeds a reliable determination of the ignition value, under consideration of the necessary correction values, is possible. The angle pulses are utilized as clock pulses. A correction field storage contains multiple-bit correction values in temperature/load/speed characteristic fields and/or octane/load characteristic fields. During a subsequent correction angle interval the count value of the ignition counter is additively or substractively corrected by the multiple-bit correction values.
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Kluppel Klemens
Stubs Albert
Argenbright Tony M.
Atlas Fahrzeugtechnik GmbH
Kontler Peter K.
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