Tire pressure low-speed air leakage detection method and tire pressure detection device
A detection method and tire pressure technology, applied in tire measurement, tire parts, transportation and packaging, etc., can solve the problems of not considering temperature changes, implementation complexity, etc., and achieve the effect of optimal resource allocation, fast speed, and improved safety.
Active Publication Date: 2019-11-22
上海能塔智能科技有限公司
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Problems solved by technology
[0006] The purpose of the present invention is to provide a tire pressure slow leak detection method to solve the technical problems of complex implementation and no consideration of false alarms caused by temperature changes
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[0028] see figure 1 , which is a schematic diagram of a vehicle remote real-time tire pressure monitoring system. It includes at least one vehicle monitoring device for obtaining real-time tire data, at least one vehicle-side processing and display module 13 and a cloud monitoring center 14 . in:
[0029] The vehicle monitoring equipment can be mounted on a vehicle, including at least one tire real-time data collector 11 and at least one receiver 12 for each tire of the vehicle. Existing car is example with four-wheel drive, and generally four tires are working during driving. Therefore, there can be four tire real-time data collectors 11, and each tire is set as a tire real-time data collector 11. The tire real-time data collector 11 can adopt the existing ZUS external STSM (Smart Tire Safety Monitor). That is, the tire real-time data collector may be a tire pressure sensor, and the tire pressure sensor is installed on a tire valve of a corresponding tire.
[0030] The a...
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The invention discloses a tire pressure low-speed air leakage detection method and a tire pressure detection device. The tire pressure low-speed air leakage detection method comprises the steps that tire state data are obtained in real time, a tire pressure state table is formed, and the tire state data comprise collection time, a current tire pressure value and a current tire temperature value matched with the current tire pressure value; a sampling tire temperature value matched with the sampling tire pressure value is acquired from the tire pressure state table based on the sampling tire pressure value; a current tire pressure value group matched with the sampling tire temperature value in the tire pressure state table is determined, wherein the difference value between the current tiretemperature corresponding to the current tire pressure value in the current tire pressure value group and the sampling tire temperature value meets a preset temperature threshold value; the slow airleakage detection ratio is equal to (the maximum tire pressure in the current tire pressure value group minus the sampling tire pressure value) / the maximum tire pressure value; and if the slow air leakage detection ratio is greater than a preset rate value, determining slow air leakage of the tire. The tire pressure low-speed air leakage is carried out in the mode, special detection equipment fordetecting various environmental parameters does not need to be additionally arranged, the development cost does not need to be additionally increased, and more accurate low-speed air leakage detectioncan be achieved.
Description
technical field [0001] The invention relates to the field of vehicle detection, in particular to a tire pressure slow leak detection method and a tire pressure detection device. Background technique [0002] As the tire is an important part of the car running mechanism, it not only bears the weight of the car, but also provides propulsion for the car to move forward, and plays a role in easing the impact of the ground. The tire pressure monitoring system can monitor the tires in real time, remind the driver to pay attention to possible safety hazards, and prevent accidents in advance. At present, there are mainly tire pressure monitoring systems on the market such as Infineon SP37 series, Freescale FXTH871 series, and TI's TPIC82000 series. (RF) is emitted. Existing passenger cars use low-frequency matching tools to sequentially read the identification (ID) of the tire monitoring module at the corresponding position and save it in the matching tool, and then write the ID i...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B60C23/04B60C23/20
CPCB60C23/04B60C23/0433B60C23/20
Inventor 李佳袁一曹余
Owner 上海能塔智能科技有限公司