Engine throttle control apparatus

Details Engine throttle control apparatus Engine throttle control apparatus

1998-06-23

1999-12-28

Argenbright, Terry M.

Internal-combustion engines

Engine speed regulator

Idle speed control

123480, 123399, 701110, F02D 4112

Patent

active

060067241

ABSTRACT:
The invention ensures that a vehicle responds in accordance with a driver's expectations during negative pressure control (or boost control). A negative pressure control target intake air flow rate is calculated. This air flow rate ensures that the pressure in a cylinder does not drop too low (which could increase oil leakage into the cylinder). A greater one of an ISC (idle speed control) target torque and a negative pressure control target intake air flow rate torque-converted value is selected. The selected torque is set as an engine demand torque. The engine demand torque is combined with a driver demand torque to calculate a target torque. The throttle valve is controlled in an electronic manner based on the target torque.

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patent: 5722362 (1998-03-01), Takano et al.
patent: 5875762 (1999-03-01), Tsuchiya
Nissan Direct-Injection Engine, NEODi-Gasoline Engine Diesel Engine.

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