Method for boost pressure control of an internal combustion engi

Details Method for boost pressure control of an internal combustion engi Method for boost pressure control of an internal combustion engi

1999-03-23

2000-11-21

Kamen, Noah P.

Power plants

Fluid motor means driven by waste heat or by exhaust energy...

With supercharging means for engine

F02D 2300

Patent

active

061486159

ABSTRACT:
In the boost pressure control system there is generated, from the system deviation between a reference boost pressure and an actual boost pressure, a manipulated variable for an actuator that acts on the exhaust flow guided through the turbine of an exhaust-driven turbocharger. To allow the boost pressure control system to operate over a wide working range without allowing the control action to become too slow or allowing control overshoots to occur, the manipulated variable, or one or more other variable(s) constituting the manipulated variable, is/are transformed in a characteristics map into values such that after transformation, a linear correlation exists between the manipulated variable and the controlled variable.

REFERENCES:
patent: 4748567 (1988-05-01), Sumizawa et al.
patent: 4781027 (1988-11-01), Richter et al.
patent: 5782092 (1998-07-01), Schultalbers et al.

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