OSEK NM-based real vehicle environment simulation and rapid test system

Abstract

The invention discloses an OSEK NM-based real vehicle environment simulation and rapid test system, which comprises a parameter adaptive module, a test code module, an interface code unit and an automatic code unit, and is characterized in that the automatic code unit comprises a node rapid construction module and at least one independent operation node. In the present invention, the automatic code unit solidifies all standard services in an OSEK NM standard protocol, so that intermediate steps of testing can be automatically executed, the number of written test case codes is irrelevant to thenumber of executed steps, the number of rows and the number of times of code recompiling are greatly reduced, and the operation and maintenance process of a system is greatly simplified. No code intersection exists among the nodes, so that the number of BUGs caused by redundant codes is reduced fundamentally; independent operation nodes in the automatic codes can simulate independence of real vehicle nodes, so that a real vehicle scene is truly simulated.

Description

technical field [0001] The invention relates to the field of automotive electronic system testing, in particular to a real vehicle environment simulation and rapid testing system based on OSEK NM. Background technique [0002] At present, there are only two protocols for embedded automotive communication networks, OSEK NM and AUTOSAR NM. Among them, OSEK NM (OSEK: open systems and the corresponding interfaces for automotive electronics, German automotive electronics open systems and corresponding interface standards; NM: network management Specification) network management is applied to the embedded automotive communication network, and uses specific messages to manage the communication between each node in the network (that is, each automotive electronic component that supports network management) to improve the communication efficiency of the network. Because the actual interaction time interval of network management messages is very short, the message sending time of each...

AI Technical Summary

Problems solved by technology

[0003] 1. The existing test system only has test code modules, and it is necessary to gradually write codes for testing according to the test steps. The time cost of writing and maintaining codes is high, the code is redundant, and the BUG (vulnerability) of its own code is uncontrollable;

[0004] 2. The existing test system is to simulate the interaction between other nodes and the product under test one by one through programming, that is, the interaction process is executed according to the pre-programming, while the real vehicle is a real-time interaction of multiple nodes, and each node is completely independent, there will be differences in the order of interaction Deterministic, existing testing methods cannot simulate this scenario;

[0005] 3. The code of the existing test system is customized programming, which needs to be re-customized for different customers, and must be programmed and maintained by professional programmers; using the existing method, even if the testers have certain programming ability and professional experience Experience may not be able to complete the network management test of OSEK NM;

[0006] 4. The existing test system does not integrate exception records and only focuses on the pre-programmed execution results. Occasional phenomena in the intermediate steps will be missed, and there will be risks of missing tests;

[0007] 5. When the existing test system has a problem in the actual vehicle, the restoration site needs to be reprogrammed according to the scene, and the process is very cumbersome

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