IGNITION CONTROLLER FOR INTERNAL COMBUSTION ENGINE

• Main Authors: UOZUMI YOSHIAKI, KANEMURA SHINJI
• Format: Patent
• Language: English
• Published: 31.05.1989
• Subjects: BLASTING; COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; IGNITION, OTHER THAN COMPRESSION IGNITION, FORINTERNAL-COMBUSTION ENGINES; LIGHTING; MECHANICAL ENGINEERING; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES; WEAPONS

PURPOSE:To suppress the torque variation and improve the traveling feeling by installing a means for selecting the charging capacity of a condenser connected with the output side of an ac power generator interlocked with an engine according to the engine revolution state. CONSTITUTION:The output shaft of an ac power generator 1 interlocked with the revolution of an engine is connected with the collector terminals of a plurality of transistors Tr2a-Tr2d connected in parallel through a constant voltage circuit (not shown in the figure). The collector terminals of the transistors Tr2a-Tr2d are connected with the relays 3a-3d connected in parallel, and the output shafts of the relays 3a-3d are connected with the condensers 4a-4d. Each condenser 4a-4d has different charged capacity, and connected with a common ignition coil 6. The ports 1-4 of a microcomputer 11 are connected with the base terminals of the transistors Tr2a-Tr2d, and the transistors Tr2a-Tr2d are selectively brought into electric conduction according to the output signal of a revolution speed detecting means 10.