Non-synchronous injection acceleration control for a multicylinder internal combustion engine

Patent · Tue Mar 04 04:00:00 EST 1986

OSTI ID:5688109

Watanabe, H; Nakano, K; Ohnishi, A

A fuel-injection controlled internal combustion engine is described consisting of: an engine body having cylinders; an intake line for introducing intake air into the engine body; an exhaust line for removing exhaust gas from the engine body; injector means for controllably injecting fuel into the intake line; air flow detecting means for detecting an amount of air flowing through the intake line into the engine body and providing signals representative of the detected amount; synchronous means for controlling the injector means synchronously with predetermined crank angles to cause fuel to be injected; means for detecting the occurrence of a wide open throttle acceleration condition of the engine; acceleration start time determining means for determining the start time of acceleration relative to the time occurrence of two prior and post consecutive synchronous fuel injections, in accordance with one of a detected wide open throttle acceleration condition and a throttle-position indicated acceleration condition; and acceleration pulse means, responsive to the detected acceleration conditions, for operating the injector means to commence acceleration pulse fuel injections with the detected acceleration conditions, the width of the acceleration pulse fuel injections being determined in accordance with the start time occurrence of acceleration determined by the acceleration start time determining means.

• Assignee: Toyota Jidosha Kabushiki Kaisha, Toyota
• Patent Number(s): US 4573443
• OSTI ID: 5688109
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
ACCELERATION
AIR FLOW
CONTROL EQUIPMENT
CONTROL SYSTEMS
CYLINDERS
ENGINES
EQUIPMENT
EXHAUST GASES
EXHAUST SYSTEMS
FLUID FLOW
FLUIDS
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
GAS FLOW
GASEOUS WASTES
GASES
HEAT ENGINES
INCIDENCE ANGLE
INTERNAL COMBUSTION ENGINES
PULSES
SPEED REGULATORS
TIME MEASUREMENT
WASTES