Ignition system

Patent · Tue Jul 14 04:00:00 EDT 1987

OSTI ID:6341974

Abe, M; Miura, N

This patent describes an ignition circuit for an internal combustion engine comprising (a) an ignition circuit generating an ignition timing signal, (b) an inhibition circuit comprising an r.p.m. detector circuit and a first gating circuit shunting the first gating circuit in response to output from the r.p.m. detector circuit, for inhibiting generation timing signal when the r.p.m. of the engine is below a predetermined value; (c) an interruption circuit comprising series connection of a second gating circuit to the inhibition circuit and a time-constant-discharge-circuit comprising a parallel connection of a resistor and a capacitor, and a diode preventing rapid discharge of the capacitor; (d) the time constant discharge circuit shunting the second gating circuit and preventing operation for the inhibition circuit in response to charged voltage in the capacitor, when a starter switch is in ''ON'' position, it continues to shunt the second gating circuit and to prevent operation of the inhibition circuit in the ''ON'' position.

• Assignee: Honda Giken Kogyo Kabushiki Kaisha, Tokyo
• Patent Number(s): US 4679540
• OSTI ID: 6341974
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
CAPACITORS
ELECTRIC POTENTIAL
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
ENGINES
EQUIPMENT
GATING CIRCUITS
HEAT ENGINES
IGNITION SYSTEMS
INTERNAL COMBUSTION ENGINES
MOTION
RESISTORS
ROTATION
SIGNALS
SWITCHES
TIMING CIRCUITS