Adjustment of the pressure in a vehicle tire

A tire pressure and tire technology, applied in the field of pressure devices, can solve the problems of time-consuming adjustment, inability to accurately estimate the change in tire pressure of the compressed air of the reversing valve, and achieve the effect of avoiding adjustment errors

Inactive Publication Date: 2012-09-19
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But even when the correct pressure is known, adjustment is a time-consuming process because the user cannot accurately estimate the amount of compressed air flowing in or out when the diverter valve is opened and the resulting pressure change in the tire

Method used

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  • Adjustment of the pressure in a vehicle tire
  • Adjustment of the pressure in a vehicle tire
  • Adjustment of the pressure in a vehicle tire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] figure 1 A block diagram of a motor vehicle 1 is shown, which has four wheels 2 , each of which is equipped with a tire pressure sensor 3 . The central unit 4 is connected to the tire pressure sensor 3 via communication interfaces 5, 6 in order to receive the pressure measurement from the tire pressure sensor 3, compare it with the nominal value stored in the memory 7 and display the measured value on the display instrument 8 of the instrument panel. , or a warning is displayed if the measured pressure deviates significantly from the setpoint value stored for the relevant tire or its sensor 3 . Since the tire pressure sensor 3 on the wheel 2 is in contact with the air chamber of the wheel tire and rotates with it, the communication interfaces 5, 6 are preferably cordless, in particular radio interfaces, as they are used eg in RFID technology.

[0037]The tire pressure adjustment device 10 includes a communication interface 11 compatible with the interfaces 5, 6, a cont...

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PUM

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Abstract

An apparatus for adjusting the pressure in a tire of a vehicle (1) comprising a compressed gas source (14), a coupling (16) which can be fastened on a valve (9) of the tire, and control means (11, 14, 17) for selective action upon the coupling (16) with compressed gas from the compressed gas source (14), wherein the control means comprise an interface (11) for communication with a TPM system (3-8).

Description

technical field [0001] The invention relates to a device and a method for adjusting the pressure in the tires of a vehicle, in particular a motor vehicle. Background technique [0002] The most widely used device at gas stations for this purpose today consists in a portable unit of a pressure vessel, a hose with an adapter for connection to a tire valve, for selectively connecting the hose to the pressure vessel or to the surrounding atmosphere The reversing valve and the pressure gauge used to detect the pressure in the hose. If the adapter of the unit is secured to the tire valve, the tire valve opens and the pressure gauge measures the tire pressure. By operating the reversing valve of the unit, the user can bring the tire pressure to the desired value. [0003] In order to be able to adjust tire pressure correctly, the user must know the correct pressure value. This is not always simple, as the correct pressure on one and the same car will vary between front and rear ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C23/00B60C23/04
CPCB60S5/04B60C23/0479B60C23/0484B60C23/02B60C23/04
Inventor C·费伯A·韦伯D·鲍尔泽
Owner GM GLOBAL TECH OPERATIONS LLC
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