Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1990-09-26
1991-12-17
Cross, E. Rollins
Internal-combustion engines
Charge forming device
Fuel injection system
123480, F02D 4104
Patent
active
050727117
ABSTRACT:
A fuel injection control system is designed to be commonly available to an engine with a manual transmission and an engine with an automatic transmission. The internal combustion engine has a fuel injection device for delivering different amounts of fuel to the engine according to engine operating conditions. The fuel injection control system causes the fuel injection device to make an increase in fuel amount when the engine operates in a specific zone of engine operating conditions defined by engine operating speeds and loads. When the engine operating condition remains in the specific zone, the control system makes the increase in fuel amount with a time delay from a time the engine operating condition changes into the specific zone. The specific zone, when the engine is equipped with an automatic transmission, is expanded toward a side of engine speeds higher than an engine speed by which an upper extreme engine speed of the specific zone is defined that when the engine operates in the expanded part of the specific range and at high elevations, the system intentionally causes an increase in fuel.
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Katayama Kenji
Yashiki Seiji
Cross E. Rollins
Mazda Motor Corporation
Moulis Tom
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