Off-highway giant tire slow air release automatic detection method

Abstract

The invention discloses an off-highway giant tire slow air release automatic detection method. The method comprises the steps of 1, uploading tire temperature and tire pressure data to a server; 2, obtaining the highest temperature of the tire temperature in the first day as Tmax; 3, obtaining the lowest temperature Tmin of the tire in the same first day; 4, obtaining the highest temperature Tmaxand the lowest temperature Tmin from the step 2 and the step 3, calculating and recording the intermediate temperature as Tm, and finding the corresponding tire pressure Pm; 5, recording the highest temperature T'max and the lowest temperature T 'min in the second day, and comparing the highest temperature T'max and the lowest temperature T' min with the intermediate temperature Tm in the first day; and 6, calculating the pressure values P1P2, P2P3 and P1P3 according to a time sequence by taking three continuous days of which the intermediate temperature is kept unchanged. Whether the tire isin a slow gas spreading state or not is detected more accurately through an algorithm, and the method is suitable for complex working conditions of an open pit mine and large-range fluctuation conditions of the temperature and the tire pressure in the tire. And the tire pressure monitoring precision of the open pit mine dump truck tire pressure monitoring system is improved.

Description

technical field [0001] The invention belongs to the detection of tire pressure, in particular to an automatic detection method for slow air leakage of giant non-highway tires. Background technique [0002] The vehicles in the open-pit mine run about 23 hours a day, and there is one hour of shift change and inspection every day. The load of the vehicle is more than 100 tons, and the vehicle will be completed within 120 seconds on average from empty load to full load. After full load, the tire pressure will increase by an average of 10kPa to 20kPa relative to the empty load; the vehicle is taken from full load to empty by the way of a dump truck , on average within 10 seconds from full load to no load, the average tire pressure is reduced by 10kPa to 20kPa. [0003] When the giant tires used in open-pit mining dump trucks start working from cold tire pressure to hot tire pressure, the tire temperature will change to varying degrees. The temperature range is affected by the am...

AI Technical Summary

Problems solved by technology

[0006] The current tire pressure monitoring system (TPMS) is to automatically monitor the tire pressure in real time while the car is running, and give an alarm to the rapid tire leak and low air pressure, but when there is a slow leak or the tire temperature and pressure are within the normal range When inside, the tire pressure monitoring system (TPMS) cannot judge the slow leak

Images