System for the closed-loop control of the supercharging of an in

Details System for the closed-loop control of the supercharging of an in System for the closed-loop control of the supercharging of an in

1994-12-23

1996-09-03

Koczo, Michael

Power plants

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

With supercharging means for engine

F02B 3712

Patent

active

055512356

ABSTRACT:
In a system for the closed-loop control of the supercharging of an internal-combustion engine, a manipulated variable is produced by means of a controller in dependence upon the deviation between a desired supercharging and an actual supercharging. With this manipulated variable, a final controlling element is triggered, which influences the supercharging of the internal-combustion engine. The controller parameters of the controller are repeatedly optimized. To this end, a model for the internal-combustion engine is specified, inclusive of a charging device, and the model parameters are determined from the manipulated variable and the actual supercharging. Controller parameters are determined from the model parameters and relayed to the controller. Moreover, in certain operating states, the controller parameters are stored in start-up characteristic maps. The start-up characteristic maps supply the initial values for the controller parameters each time the closed-loop control is activated.

REFERENCES:
patent: 4660382 (1987-04-01), Ueno et al.
patent: 4671067 (1987-06-01), Abo et al.
patent: 5123246 (1992-06-01), Younessi et al.

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