JPS602510B

• Main Authors: NAKAMURA HIDEO, MORINAGA SHIGEKI, TOKUDA HIROATSU
• Format: Patent
• Language: English
• Published: 22.01.1985
• Subjects: BLASTING; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; CONTROLLING COMBUSTION ENGINES; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; IGNITION, OTHER THAN COMPRESSION IGNITION, FORINTERNAL-COMBUSTION ENGINES; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MECHANICAL ENGINEERING; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES; WEAPONS

PURPOSE:To provide an electronic engine controller which can entirely control an engine by a combination of relatively simple, digital control circuits. CONSTITUTION:The outputs of an air flow meter 14, an intake temperature sensor 16, a throttle position detector 24, a sensor for the degree of opening of an EGR valve 28, a lambda-sensor 80, an exhaust temperature sensor 84, a water temperature sensor 96 and an angle sensor for detecting the rotational position of the engine are A/D-converted and then processed. The EGR valve 28, an injection valve 66 and an ignition coil 40 are controlled depending on the processed data. A reference register group for retaining the processed data and an instantaneous register group for retaining the instantaneous conditions of the engine are provided. A control circuit 10 is so formed to select registers concerned from the register groups and another register group for retaining comparison results and connect said registers to comparators.