Ignition control system for internal combustion engines

Patent · Tue Sep 01 04:00:00 EDT 1987

OSTI ID:6092915

Sasakura, H; Tsujimura, M

An ignition control system is described for internal combustion engines comprising: a reference angle sensor for detecting the rotational speed of the internal combustion engine and generating a reference angle signal by discriminating a point near the top dead center; an angle sensor for detecting the rotational speed of the internal combustion engine and generating an angle signal by discriminating the revolutions for each predetermined angle; and a microcomputer including an output compare register, a free-running counter and a timer control status register for computing the ignition timing and the ignition coil energization time thereby to control the energization of the ignition coil in response to the reference angle signal, the angle signal and data on the operating conditions representing at least the amount of intake air.

• Assignee: Nippondenso Co., Ltd., Kaiya
• Patent Number(s): US 4690122
• OSTI ID: 6092915
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
COMPUTERIZED CONTROL SYSTEMS
COMPUTERS
CONTROL SYSTEMS
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
ENGINES
EQUIPMENT
HEAT ENGINES
IGNITION SYSTEMS
INCIDENCE ANGLE
INTERNAL COMBUSTION ENGINES
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
MOTION
ROTATION
SIGNALS
TIMING CIRCUITS
VELOCITY