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Method and apparatus for ignition system spark timing control during no-load engine operation

Patent ·
OSTI ID:6470467
A method and apparatus for controlling ignition system spark timing. It is detected whether the engine is in operation with no load or in the remaining operating conditions. A digital processor is provided which uses a mathematical formula or table during no load engine operation to find value of spark advance, which mathematical formula or table is distinct from a mathematical formula or table to be used during the remaining engine operating conditions to find value of spark advance.
Assignee:
Nissan Motor Co., Ltd. (Japan)
Patent Number(s):
US 4445477
OSTI ID:
6470467
Country of Publication:
United States
Language:
English