Ingition system for internal combustion engines
An ignition system for an internal combustion engine is described which consists of: at least one ignition coil of primary coils corresponding respectively to individual cylinders of the internal combustion engine; basic ignition signal detector means for producing basic ignition signals in synchronism with rotation of the engine; ignition control means for receiving the basic ignition signals as input signals and producing an ignition control signal having a controlled predetermined pulse width; basic cylinder discriminating signal detector means for producing a basic cylinder discriminating signal having a period twice that of the basic ignition signals in synchronism with rotation of the engine; cylinder discriminating signal forming means for receiving the ignition control signal and the basic cylinder discriminating signal as input signals and forming a cylinder discriminating signal comprising the basic cylinder discriminating signal with starting time of pulses shifted to coincide respectively with trailing edges of pulses of the ignition control signal, which trailing edges correspond to ignition time of the engine; and energization signal forming means for generating an energization signal which controls energization of the primary coils of the ignition coil for respective of the engine cylinders in accordance with the cylinder discriminating signal and the ignition control signal.
- Assignee:
- Nippondenso Co., Ltd., Kariya
- Patent Number(s):
- US 4572151
- OSTI ID:
- 5835065
- Resource Relation:
- Patent File Date: Filed date 27 Jul 1984
- Country of Publication:
- United States
- Language:
- English
Similar Records
Ignition system for rotary internal combustion engines
Ignition control apparatus for internal combustion engines