FUEL INJECTION AND IGNITION CONTROL UNIT FOR INTERNAL- COMBUSTION ENGINES Russian patent published in 1998 - IPC

FIELD: electronic systems for controlling ignition and fuel injection of internal- combustion engines. SUBSTANCE: control unit has processor whose input is connected through input interface to sensors of start-of-count system, top dead center of first cylinder, angular pulses, air and liquid temperature, throttle position, CORCO controller, air flowrate, oxygen content of waste gases; its output is connected through output interface to actuating devices; it also has rectifier and analog-to-digital converter. Novelty is that unit is provided with code adder, code divider, band amplifier, low-frequency filter, two 2AND gates, 2OR gate, two registers, and code analyzing circuit. EFFECT: improved accuracy of combustion knock detection. 2 dwg