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Method and device for simulating a technical system

A technology system and simulation technology, applied in the field of simulation technology system, can solve problems such as lack of reliability of simulation model results, and achieve the effect of improving functional reliability

Pending Publication Date: 2021-10-26
ROBERT BOSCH GMBH
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  • Claims
  • Application Information

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Problems solved by technology

However, simulation model results according to prior art are only limitedly included in release decisions due to lack of confidence in their reliability

Method used

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  • Method and device for simulating a technical system
  • Method and device for simulating a technical system
  • Method and device for simulating a technical system

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Embodiment Construction

[0023] figure 1 The basic steps of the method 10 according to the invention are illustrated. First, get N with the help of the simulation model 1 different time series (process 11). If both the chance parameter as well as the cognitive parameter are varied, the simulation results can be summarized in m 1 ×n 1 matrix in which for example these rows contain contingent parameters with a fixed set of cognitive parameters. Therefore, there exists m 1 different cognitive parameter combinations—each cognitive parameter combination has n 1 a variable parameter.

[0024] Then, by corresponding measurements of the system, measurement sequences corresponding to the time series are obtained (process 12 ), which should be used as a reference basis for verification or calibration of the simulation model. The comparison of each entry of the measurement series with each reference time series adds an additional dimension to the matrix approximation. Two alternative possibilities are no...

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Abstract

A method (10)for simulating a technical system. Time series are obtained with the aid of a simulation model(11) of the system, variable values being assigned to at least one epistemic parameter of the simulation model, at least one measurement series (12)is obtained by corresponding measurements on the system, for each value of the epistemic parameter, a real-value error measure of the time series obtained for this value with respect to the measurement series and a distribution function of the error measure(15) are calculated(13), and for the simulation(14), that value is used, for which the distribution function(16) has the smallest distance to a Heaviside function.

Description

technical field [0001] The invention relates to a method for simulating a technical system. The invention also relates to a corresponding device, a corresponding computer program and a corresponding storage medium. Background technique [0002] In software technology, the generic term "model-based testing" (model-based testing, MBT) summarizes the use of models for the automation of testing activities and the generation of test artifacts during the testing process. For example, it is well known to generate test cases from models describing the target behavior of the system under test. [0003] Embedded systems in particular rely on deterministic input signals from sensors, which in turn stimulate their environment through output signals to very different actuators. Therefore, during the validation and pre-development phase of such a system, the model (model in the loop, MiL), software (software in the loop, SiL), processing A processor (processor in the loop, PiL) or the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F17/18G06F111/08
CPCG06F30/20G06F17/18G06F2111/08G06F2111/10
Inventor C·恩德勒尹智洙J·冯克勒J·施密特S·罗德
Owner ROBERT BOSCH GMBH