System for the closed-loop control of the supercharging of an internal-combustion engine
First Claim
1. A system for a closed-loop control of a supercharging operation of an internal-combustion engine including a charging device, comprising:
- a final controlling element, triggered as a function of a supercharging parameter, for controlling the supercharging operation of the internal-combustion engine;
a controller for producing the supercharging parameter as a function of a deviation between a desired supercharging value and an actual supercharging value and as a function of a plurality of controller parameters establishing a transient behavior of the controller; and
a modeling device, having as inputs the supercharging parameter and the actual supercharging value, for modeling the internal-combustion engine, for determining a plurality of model parameters as a function of the inputs, for determining the plurality of controller parameters as a function of the plurality of model parameters, and for transmitting the plurality of controller parameters to the controller.
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Accused Products
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.
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Citations
10 Claims
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1. A system for a closed-loop control of a supercharging operation of an internal-combustion engine including a charging device, comprising:
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a final controlling element, triggered as a function of a supercharging parameter, for controlling the supercharging operation of the internal-combustion engine; a controller for producing the supercharging parameter as a function of a deviation between a desired supercharging value and an actual supercharging value and as a function of a plurality of controller parameters establishing a transient behavior of the controller; and a modeling device, having as inputs the supercharging parameter and the actual supercharging value, for modeling the internal-combustion engine, for determining a plurality of model parameters as a function of the inputs, for determining the plurality of controller parameters as a function of the plurality of model parameters, and for transmitting the plurality of controller parameters to the controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification