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Engine online monitoring test system and method

A test system and engine technology, applied in the direction of motor generator testing, instruments, measuring devices, etc., can solve problems such as difficulty in the test process, achieve the effect of shortening the development cycle, ensuring quality and effectiveness

Active Publication Date: 2021-10-08
UNITED AUTOMOTIVE ELECTRONICS SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide an engine online monitoring test system and method to solve the problem that the test process of the existing engine online monitoring system is relatively difficult

Method used

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  • Engine online monitoring test system and method
  • Engine online monitoring test system and method
  • Engine online monitoring test system and method

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Experimental program
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Embodiment 1

[0068] This embodiment provides an engine online monitoring test system, such as figure 1As shown, the engine online monitoring test system includes recording software 11, test control program module 12 and circuit fault simulator 20, the recording software 11 and test control program module 12 are integrated on a PC, and the test control program module 12 includes Application programming interface module 121, test flow database 122 and circuit fault control interface 123, wherein: develop application programming interface module 121 based on computer language, described application programming interface module 121 obtains test item from described test flow database 122 The test parameters, measurement variables and the test frequency corresponding to each of the measurement variables, and provide the above data to the recording software 11; the application programming interface module 121 obtains the test from the test process database 122 Item fault simulation mode, if it is...

Embodiment 2

[0081] This embodiment also provides an engine online monitoring test method, the engine online monitoring test method in the previous embodiment as the implementation hardware, including: the application programming interface module is obtained from the test process database The test parameters of the test item, the measurement variables and the test frequency corresponding to each of the measurement variables, and provide the above data to the recording software; the application programming interface module obtains the test items from the test process database Fault simulation mode, if it is a circuit fault simulation mode, then control the circuit controller to work, if it is a functional fault simulation mode, then change the corresponding engine matching quantity; preferably, the application programming interface module obtains the test from the test process database. Whether the project is a circuit fault simulation, if so, the application programming interface module obt...

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Abstract

The invention provides an engine online monitoring test system and method, the application programming interface module provides the test parameters, measurement variables and the test frequency corresponding to each measurement variable to the recording software according to the test items to be carried out; the application program The programming interface module obtains the fault simulation mode of the test item from the test process database; the test process database is used to save the test parameters, measurement variables and steps of the test item, fault simulation mode, and test boundary conditions, and Form the test steps, test boundary conditions and system diagnosis logic according to the above test items, and conduct the test according to the test steps, test boundary conditions and system diagnosis logic; the recording software records the test results according to the measured variables, and provides the test results to the test Process database; the test process database corrects the test steps and the test boundary conditions according to the test results.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to an engine online monitoring test system and method. Background technique [0002] The engine management system (EMS) includes a variety of components and systems, such as various sensors (such as pressure sensors), actuators (such as fuel injectors), closed-loop control systems, and misfire monitoring systems. The circuit fault monitoring of these components and the system The functional monitoring of the vehicle belongs to the basic requirement of the online diagnostic system (OBD) in the emission regulations. At present, the vehicle after-sales maintenance service also strongly relies on the relevant fault information provided by the OBD system. Therefore, the matching development of the OBD system (including the matching development of the circuit fault diagnosis of related components and the system functional fault diagnosis) is an important content of the matching developmen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/34
CPCG01R31/343
Inventor 张海林朱泽伟佟娟娟黄慧龙彭晶张喜岗
Owner UNITED AUTOMOTIVE ELECTRONICS SYST