PURPOSE: To obtain excellent combution, after the acceleration has been detected, detecting engine acceleration, adding variable to show engine condition and engine accelerating condition to advancing value, carrying out accelerating angle of advance to astringe the value of accelerating angle of advance to zero after that.
CONSTITUTION: An ignition timing arithmetic unit 3 to decide ignition timing in accordance with the condition of internal combustion engine is connected to the angle detector 1, the suction air pressure detector 2, the acceleration 4 detector 4 and the temperature detector 6. The ignition timing arithmetic unit 3 is composed of the first detecting circuit 31 to detect the engine speed, the second detecting path 32 to detect suction negative pressure, angle of advance setter 34 to output accelerating angle of advance characteristics with accelerating condition, ignition timing deciding circuit 33 to decide the ignition timing, and the primary coil control circuit 35 to carry out energizing and cutting off in the primary circuit of ignition coil due to output in the ignition timing deciding circuit 33.
HATSUTORI TADASHI
NISHIDA MINORU
GOTOU KENJI
SAWADA DAISAKU
SHIGEMATSU TAKASHI
TOYOTA MOTOR CO LTD
| JPS5022129A | 1975-03-10 | |||
| JPS521240A | 1977-01-07 | |||
| JPS48103932A | 1973-12-26 | |||
| JPS4968126A | 1974-07-02 | |||
| JPS49108438A | 1974-10-15 |