Universal vehicle instrument detecting instrument and detecting method thereof

A technology for automobile instruments and detectors, applied in the field of detectors, can solve the problems of cumbersome operation, inconvenient production order and high production cost, and achieve the effect of simple operation

Inactive Publication Date: 2007-11-07
南京申华汽车电子有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The detection accuracy of the above special testing equipment is not very high, the frequency accuracy is about 0.2%, the resistance accuracy is about ±0.5 ohms, the voltage accuracy is about ±0.5 volts, and the motor speed accuracy is about ±1 revolution.
In addition, the calibration methods of the above testing equipment are cumbersome to operate, which brings great inconvenience to the normal production order, the labor intensity of the workers is high, the factory production cost is high, and the work efficiency is low.

Method used

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  • Universal vehicle instrument detecting instrument and detecting method thereof
  • Universal vehicle instrument detecting instrument and detecting method thereof
  • Universal vehicle instrument detecting instrument and detecting method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0069] In this embodiment, a certain type of heavy-duty truck instrument is tested. The instrument assembly detection includes checking each check point of the odometer, tachometer, water temperature gauge, fuel gauge, oil pressure gauge, air pressure gauge, and voltmeter. Fixed file detection, to detect the full bright and full dark states of each indicator light on the instrument panel. The detection process is as follows:

[0070] The verification code of the instrument assembly is called out from the generalized automobile meter tester, and the CPU automatically transfers all the test parameters of the meter type into the data buffer of the CPU.

[0071] Select the type of each small meter on the instrument assembly on the operation keyboard, and perform fixed-block calibration according to the process requirements. For example, check the fixed gear of the electronic odometer. The CPU control system first transmits the first gear calibration parameters of the electronic ...

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Abstract

The invention relates to a detector, a universal automobile meter detector and the detecting method thereof, comprising: CPU control module, frequency signal generating module, network resistance output module, programmable voltage output module, automobile meter indicator detection module, display module, and keyboard control module, where the CPU globally controls the six other modules and constantly controls the output of each module according to the instruction inputted by the keyboard control module, and various check parameters can be inputted, modified and stored through the keyboard at will so as to meet the check requirements for various meters. And the invention is a universal automobile meter detector, able to meet the detection requirements for odometers, speed meters, water temperature meters, fuel oil meters, engine oil pressure meters, gas pressure meters, voltage meters, various indicators on meter panels in various automobile meters, and it is simple to operate.

Description

technical field [0001] The invention relates to a detector, in particular to a generalized automobile meter detector and a detection method thereof. Background technique [0002] At present, there are many types of automotive instruments, such as odometer, tachometer, water temperature gauge, fuel gauge, oil pressure gauge, air pressure gauge, voltmeter, etc. The calibration parameters of each type of automotive instrumentation are different. At present, the detection of each instrument is to meet the detection requirements by customizing special testing equipment. There is a lack of a generalized automotive instrument testing equipment, which can arbitrarily meet the odometer, tachometer, water temperature gauge, fuel gauge, etc. of various types of automotive instrumentation. Test requirements for gauges, oil pressure gauges, barometers, voltmeters, and indicators on the instrument panel. If there is no special detection equipment, for the detection of the odometer and ta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/00G01D13/00
Inventor 王猛
Owner 南京申华汽车电子有限公司
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