Fuel injection control device for internal combustion engine

Patent · Tue Sep 01 04:00:00 EDT 1987

OSTI ID:6096725

Isobe, T; Oba, H

A fuel injection control device is described for internal combustion engine including suction air amount measuring means for measuring suction air amount Q, engine rotational speed detection means for detecting a number of rotations N of the engine per fixed time, and fuel injection amount setting means for setting a fundamental fuel injection amount according to a suction air amount signal generated by the suction air amount measuring means and an engine rotational speed signal generated by the engine rotational speed detection means. The fuel injection control device consists of: transitional operation start timing detection means for detecting an acceleration start timing or a deceleration start timing of the engine; engine rotational number measuring means for measuring a predetermined number of rotations of the engine form the acceleration start timing or the deceleration start timing; throttle valve angle detection means for detecting that a throttle valve angle is out of a set range; and means for setting an upper limit valve and/or a lower limit value of Q/N calculated from the suction air amount signal and the engine rotational speed signal when the throttle valve angle detection means generates a signal showing that the throttle valve angle is out of the set range until the engine rotational number measuring means measures the predetermined number of rotations of the engine.

• Assignee: Toyota Jidosha Kabushiki Kaisha, Toyota
• Patent Number(s): US 4690117
• OSTI ID: 6096725
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
ACCELERATION
AIR FLOW
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
ELECTRONIC CIRCUITS
ENGINES
FLUID FLOW
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
GAS FLOW
HEAT ENGINES
INCIDENCE ANGLE
INTERNAL COMBUSTION ENGINES
MOTION
ROTATION
SIGNALS
TIMING CIRCUITS
VELOCITY