Fuel injection control system for an automotive engine

Internal-combustion engines – Charge forming device – Fuel injection system

Patent

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Details

123478, F02D 4104, F02D 4134

Patent

active

048845469

ABSTRACT:
A system for controlling fuel injection has an engine speed sensor, a throttle position sensor and an atmospheric pressure sensor. A first basic injection pulse width is calculated based on detected engine speed, throttle position, and atmospheric pressure. A memory storing correcting coefficients dependent on engine speed is provided, and a correcting coefficient is derived from the memory in accordance with the engine speed. The first basic injection pulse width is corrected with the derived correcting coefficient to provide a fuel injection pulse width signal for operating a fuel injector.

REFERENCES:
patent: 4434769 (1984-03-01), Otobe et al.
patent: 4594987 (1986-06-01), Wataya et al.
patent: 4598684 (1986-07-01), Kato et al.
patent: 4714067 (1987-12-01), Staerzl

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