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Automatic load and fault injection testing system and control method

A technology of fault injection and testing system, applied in the direction of testing/monitoring control system, electrical testing/monitoring, general control system, etc., can solve the problems of inability to test automotive electronic control units, inability to realize semi-physical simulation test, etc., to improve the test Efficiency, reduce test cost, and efficiently verify the effect of performance

Inactive Publication Date: 2018-11-23
NANJING YUEBOO POWER SYST CO LTD
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  • Abstract
  • Description
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Problems solved by technology

However, it cannot conduct a more comprehensive and detailed test on the electronic control unit of the car, and cannot realize the half-physical simulation test and simulate the external load.

Method used

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  • Automatic load and fault injection testing system and control method
  • Automatic load and fault injection testing system and control method

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings of the description.

[0032] like figure 1 , figure 2 As shown, the system includes: an upper computer component, a data acquisition board, a fault injection board and an ECU control; wherein the upper computer component includes a bottom control module, a user interaction interface module and a signal transmission module connected in sequence, and the bottom control module includes Graphical programming module, simulation model module, signal transmission module includes CAN communication bus and CCP protocol database module, CAN communication bus is composed of 2 CAN communication devices and 1 DBC file module; ECU control is set inside the device under test, CAN communication device One end is connected to the ECU control; one end of the data acquisition board is connected to the bottom control module of the upper computer component, and the other end is connected to...

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Abstract

The invention belongs to the technical field of automobile testing, in particular to an automatic load and fault injection testing system and a control method. The test system comprises an upper computer component, a data acquisition board, a fault injection board and an ECU control device. The system achieves the automatic load and fault injection testing through the following seven steps: connecting equipment, setting parameters, simulating signals, injecting signals, operating tested equipment, collecting the information of the tested equipment, and outputting or analyzing the information of the tested equipment. The system uses the simulation model module to build the whole vehicle analog signal, and realizes the semi-physical test, which means that only the tested equipment is real, thereby greatly reducing the test cost and improving the test efficiency.

Description

technical field [0001] The invention belongs to the technical field of automobile testing, and in particular relates to an automatic load and fault injection testing system and a control method. Background technique [0002] As automobiles are gradually moving towards the era of multi-functional intelligence, the complexity of automotive electronic control units has also increased rapidly, and the control algorithms and functions have been continuously enhanced, and functions such as various bus communications and online fault diagnosis have also been integrated. Traditional detection methods are unable to meet the complex test requirements, and can not test the signal under extreme conditions, so the development is more intelligent, more accurate, can simulate the external load of the electronic control unit of the car and can automate the fault injection test technology has become an important development direction. [0003] For example, the Chinese patent application num...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
CPCG05B23/0205
Inventor 李占江高超蒋元广李麟张力凡
Owner NANJING YUEBOO POWER SYST CO LTD
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