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ECU short connection protection performance test platform and method

A technology of protection performance and test methods, used in environmental/reliability testing, instruments, measuring devices, etc.

Inactive Publication Date: 2019-10-25
TIANJIN TRINOVA AUTOMOTIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a test platform and method for ECU short-circuit protection performance to solve the problem in the prior art that when testing the short-circuit protection performance of ECU in the test, a device capable of producing abnormal short-circuit conditions is required on the one hand. , on the other hand, it is necessary to have a device capable of testing and recording the functional status of the ECU

Method used

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  • ECU short connection protection performance test platform and method
  • ECU short connection protection performance test platform and method
  • ECU short connection protection performance test platform and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0039] This embodiment: as image 3 , 4 As shown, an ECU short-circuit protection performance test platform includes:

[0040] Abnormal short-circuit device 1: used to create abnormal short-circuit conditions S101, including making S201 to short-circuit the signal line and load circuit of the ECU to the power supply and to the ground respectively when an abnormal situation occurs;

[0041] State test recording device 2: used to test and record the abnormality of the functional state when the abnormal situation occurs, including the traversal test S202 of all pins of the MCU under the abnormal short-circuit manufacturing condition S101, during the traversal test process In the process, by collecting the current value S203 of each part in the MCU respectively, the collected current value is sent to the upper computer S204 through the board card, and the upper computer displays the current change waveform S205 in real time and records the received current value data It is conve...

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Abstract

The invention belongs to the technical field of ECU short circuit protection test devices, and particularly relates to an ECU short connection protection performance test platform. Meanwhile, the invention further provides an ECU short connection protection performance test method; the platform comprises an abnormal short circuit device, a state test recording device and a performance test platform, and solves the problem as follows: in the prior art, when the short circuit protection performance of the ECU is tested, on one hand, a device capable of manufacturing an abnormal short circuit working condition is needed, and on the other hand, a device can be used for testing and recording the function state of an ECU is needed; and by adoption of the test platform, the device capable of manufacturing an abnormal short circuit working condition and the device can be used for testing and recording the function state of the ECU can be realized, and the beneficial technical effects that thetest is simple and convenient, and the automation degree is high are achieved.

Description

technical field [0001] The invention belongs to the technical field of ECU short-circuit protection test devices, and in particular relates to an ECU short-circuit protection performance test platform. Meanwhile, the invention also provides an ECU short-circuit protection performance test method. Background technique [0002] ECU short-circuit protection performance refers to the degree of abnormality in the functional state of the signal line and load circuit of the ECU when it is short-circuited to the power supply and to the ground when an abnormal situation occurs. If the functional state is not affected at all, it is considered that the ECU’s The performance of the item is the best, and the abnormal short-circuit working condition of the ECU has the following two characteristics in actual work: the probability of the short-circuit working condition is small, and it is difficult to find defects in this aspect during product development; once the short-circuit abnormal wor...

Claims

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Application Information

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IPC IPC(8): G01R31/00
CPCG01R31/003
Inventor 和振宇汪冬亮颜丙杰
Owner TIANJIN TRINOVA AUTOMOTIVE TECH CO LTD
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