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Method for event-based simulation of a system

An event and simulator technology, applied in transmission systems, digital transmission systems, electrical components, etc., can solve problems such as wrong simulation behavior, inconsistent central simulation time, etc., to achieve the effect of increasing system time

Pending Publication Date: 2021-01-01
디스페이스게엠베하
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Here, then the time queried by the mock object does not agree with the central mock time, which can lead to incorrect behavior of the mock

Method used

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  • Method for event-based simulation of a system
  • Method for event-based simulation of a system
  • Method for event-based simulation of a system

Examples

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Embodiment Construction

[0032] figure 1 The mapping of an embodiment of the invention on a distributed computer system is shown, which comprises three computing units RE1, RE2 and RE3. The number of arithmetic units is chosen arbitrarily in this embodiment. exactly as in figure 1 The invention will also run on computer systems consisting of two, four or more arithmetic units, as illustrated in and explained below. Furthermore, it is not important whether the computing unit is present as a physical computing core or as a virtual computing node. The computing units RE1 , RE2 and RE3 each have an operating system OS on which in each case a simulator application SAP1 , SAP2 or SAP3 is executed. The operating system OS does not have to be the same on each arithmetic unit. The task of the simulator application SAP1 on the computing unit RE1 is to manage the event queue, which is processed in order to carry out an event-based simulation. The event waiting queue includes the list of events and the confi...

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Abstract

A method for event-based simulation of a system, wherein: the simulation is performed on a computer system comprising a first computing unit and at least one second computing unit; the first computingunit has a simulation time; the second computing unit has an operating system layer and an application layer; the second computing unit has a system time in the operating system layer; at least the second computing unit executes a simulator application; at least one simulation object is executable on the simulation application; and the first computing unit manages an event queue; at least one event per simulation step is listed in the event queue; and the event is associated with a process to be executed by the simulation object and a simulation time provided for execution of the process; thesecond computing unit has a virtual clock generator. The method has the following steps for each simulation step: transmitting, by the first computing unit, a start signal to the virtual clock generator to execute a next simulation step in the second computing unit, and, on the basis of a time difference between a past simulation step and the simulation time, incrementing the system time of the second computing unit, and executing the upcoming process at the simulation time associated with the process.

Description

technical field [0001] The present invention relates to methods for event-based simulation of systems. Background technique [0002] In the development of electronic control units, which are also broadly referred to simply as ECUs (English: Electronic Control Unit), the focus today is on virtual assurance and subsequent early testing during the development process. This occurs before the electronic control unit is tested at its established location and generally before there is a prototype of the future control unit hardware in general. Such real control devices are usually complete computers with an operating system and input and output interfaces (I / O interfaces) which are connected to a bus system by means of which the control devices can communicate with other control devices. The operating system of the application must generally meet real-time conditions, since the control unit should map safety-critical functions in its intended application. The tasks of control dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F9/54
CPCG06F2111/10G06F30/20G06F9/4881G06F2111/02G06F1/04G06F9/45533G06F9/468G06F13/38G06F2213/0058G06F2213/40H04L12/40H04L12/4633
Inventor S·施切勒
Owner 디스페이스게엠베하
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