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New energy vehicle function fault tolerance test device and test method

A technology of a new energy vehicle and a test method, which is applied in the field of new energy vehicle function fault tolerance test device, can solve the problem of inability to fully and effectively test the new energy vehicle function fault tolerance and the like

Active Publication Date: 2021-08-27
CHINA AUTOMOTIVE TECH & RES CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a functional fault tolerance testing device and testing method to solve the problem in the prior art that the functional fault tolerance of new energy vehicles cannot be fully and effectively tested

Method used

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  • New energy vehicle function fault tolerance test device and test method
  • New energy vehicle function fault tolerance test device and test method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] like figure 1 As shown, a new energy vehicle function fault-tolerant test device is provided, including a vehicle controller CAN bus A, a resolver H, a current sensor I, a voltmeter U, a displacement sensor L, a hydraulic sensor P, a data acquisition module F and a host Machine G;

[0074] The resolver H is respectively connected to the CAN bus A of the vehicle controller and the data acquisition module F, and the resolver H is used to obtain and analyze the signal on the CAN bus A of the vehicle controller, and then output the analyzed signal to the data acquisition module F;

[0075] The resolver adopts the method of simulating the data obtained by the vehicle diagnostic instrument, accesses the vehicle controller, obtains the signal on the CAN bus of the vehicle controller, and then compares it with the signal on the CAN bus of the vehicle controller acquired by the vehicle diagnostic instrument to determine the resolution Coefficients and offsets are calculated to ...

Embodiment 2

[0088] like figure 2 As shown, a new energy vehicle functional fault tolerance test method is provided, and the functional fault tolerance test is performed using the above functional fault tolerance test device, including the following steps:

[0089] S1. According to the functions of the new energy vehicle, formulate the layout plan of each sensor and voltmeter, and formulate the test program;

[0090] S2. Arranging the sensors and voltmeters for joint data debugging;

[0091] S3. Carry out the vehicle function fault tolerance test according to the test outline;

[0092] S4, test data review, if data abnormality occurs, stop the test and re-adjust the test device until the test data review is normal;

[0093] S5. If the test data review is normal, perform functional fault tolerance analysis, analyze the vehicle functional fault tolerance, and analyze the control process of functional fault tolerance.

[0094] The new energy vehicle function fault-tolerant test method ado...

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Abstract

The invention relates to a new energy vehicle function fault-tolerant testing device and testing method. The functional fault-tolerant testing device adopts the vehicle controller CAN bus, a resolver, a current sensor, a voltmeter, a displacement sensor, a hydraulic sensor, and a data acquisition module to synchronously collect key ignition state currents, voltages, etc. of the vehicle controller and executive components. Key signals such as displacement and pressure are uploaded to the host computer for display and processing, which can comprehensively monitor the functional fault tolerance status of new energy vehicles, and then be used for functional fault tolerance testing and R&D verification of new energy vehicles.

Description

technical field [0001] The invention relates to the field of new energy vehicles, in particular to a new energy vehicle function fault-tolerant testing device and testing method. Background technique [0002] With the electrification of new energy vehicles getting higher and higher, the realization of functions becomes easier and easier. However, due to the different levels of understanding of vehicle functions by users, various misoperations will occur during the realization of functions. Some misoperations can seriously damage the vehicle, and even threaten the safety of people and vehicles. Therefore, research on fault tolerance of vehicle functions has become one of the focuses of enterprise R&D verification. [0003] The current test for functional fault tolerance only stays in the realization of the external functions of the vehicle, and there is no effective test for the internal control process of misoperation. Test vehicle function fault tolerance and provide techn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
CPCG05B23/0213
Inventor 王伟曲辅凡王芳梁荣亮周博雅
Owner CHINA AUTOMOTIVE TECH & RES CENT