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Method for setting functional parameters

A technology of functional parameters and parameter groups, applied in mechanical equipment, fuel injection control, engine control, etc., can solve problems such as target conflict, and achieve the effect of reducing complexity, lowering cost, and increasing cost

Inactive Publication Date: 2012-10-03
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in many domains there are many conflicting objectives in applying these functions, for which a compromise must be determined
Here, the tuning of the system is determined, which is the optimal compromise between competing objective parameters, since these objectives cannot be simultaneously optimally achieved

Method used

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  • Method for setting functional parameters
  • Method for setting functional parameters
  • Method for setting functional parameters

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0025] figure 1 The program steps in the proposed method for setting function parameters are described. Here is the target parameter Z 1 to Z n and / or criterion K 1 to K n Provides the optimal parameter P with a weighted eigenfield map (Gewichtungskennfeld) available in the controller 1 to P n model.

[0026] In a first step 10, all necessary operating points BP are first traversed with the aid of the system or model 12 n , a multi-objective optimization is carried out with the optimizer 14 for all required objective variables and / or criteria (arrow 16 ) using the available function parameters (arrow 18 ).

[0027] The results obtained from the optimization then contain for each operating point the optimized function parameters for all compromises (Kompromiss) of the target variable and / or criterion (second step 20 ).

[0028] Then in a third step 30, from the results obtained by the optimization an optimal parameter model 32 related to the operating point can be creat...

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Abstract

The invention relates to a method for setting functional parameters of a controller for a motor vehicle, wherein at least one target parameter is prescribed in a weighted characteristic map (40), wherein the target parameters represent a behavior of the motor vehicle, and wherein an association with a model of optimal parameters (32) is provided in the weighted characteristic map (40), so that predefined target parameters can be associated with a set of optimal parameters, set as the functional parameters.

Description

[0001] The invention relates to a method for setting the functional parameters of a controller and such a controller as well as a method for calculating an optimal parameter model. Background technique [0002] The control unit is used to control an injection system for an internal combustion engine in a motor vehicle. In the controller it is provided that the controller function is designed via function parameters according to the requirements of the manufacturer and the end user, for example target variables and / or evaluation criteria. The target variable is a desired characteristic of the motor vehicle, for example with regard to driving comfort and dynamics. For this purpose, for example time constants, amplification factors and trigger thresholds are used as function parameters. For properties such as emissions, performance and consumption, injection pressure, rail oil pressure and exhaust gas recirculation as well as valve positions are used as functional parameters or ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/24F02D41/26
CPCF02D41/2409F02D2041/1433F02D41/263F02D41/1406
Inventor M.约翰纳贝尔M.雷格
Owner ROBERT BOSCH GMBH