Ignition system for a multi-cylinder internal combustion engine of a vehicle

Patent · Mon Apr 09 23:00:00 EST 1984

OSTI ID:6057132

Endo, H; Imai, I; Ishikawa, Y; Sone, M

An ignition system for a multi-cylinder internal combustion engine having a spark plug within each engine cylinder, wherein a single DC-DC converter is provided and a high-voltage withstanding characteristic capacitor is provided for each spark plug. The capacitor charges to the high DC output voltage of the DC-DC converter and operatively supplies the high DC voltage via a boosting transformer into the corresponding spark plug at a predetermined ignition timing. The amount of the discharge energy is varied according to the pulse width of an input signal of each switching circuit which operates to supply the charged high DC voltage of the capacitor into the corresponding spark plug, the pulse width being varied according to various engine operating conditions.

• Assignee: Nissan Motor Company Limited (Japan)
• Patent Number(s): US 4441479
• OSTI ID: 6057132
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100 -- Internal Combustion Engines
330603* -- Vehicle Design Factors-- Engine System
CYLINDERS
DC TO DC CONVERTERS
DESIGN
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
ENGINES
EQUIPMENT
HEAT ENGINES
IGNITION SYSTEMS
INTERNAL COMBUSTION ENGINES
SWITCHING CIRCUITS
TRANSFORMERS