Universal vehicle instrument detecting instrument and detecting method thereof

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...

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.

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