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Device and method for automatically monitoring tire pressure

A technology for automatic inspection, automotive tires, applied in tire measurement, vehicle components, transportation and packaging, etc., can solve problems such as inaccurate understanding

Inactive Publication Date: 2012-07-04
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The difficulty this creates for the driver is that when measuring the pressure on a hot tire, it is necessary to estimate whether the measured pressure meets the requirements, and cannot accurately understand the actual tire temperature and thermal state (also known as hot air pressure). This tire temperature relationship

Method used

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  • Device and method for automatically monitoring tire pressure
  • Device and method for automatically monitoring tire pressure
  • Device and method for automatically monitoring tire pressure

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Embodiment Construction

[0037] in accordance with figure 1 The block diagram of FIG. 2 schematically shows a device 1 for automatically checking the tire pressure of a vehicle according to a first embodiment of the present invention. The device 1 comprises an engine control device 2 with a computer unit on which runs a program for automatically checking the tire pressure.

[0038] To this end, the engine control unit obtains a series of input variables received, inter alia, from the pressure sensor 4, at the current temperature T 1 The current actual value of the inner tire pressure of all tires of the car p ist (T 1 ) and a series of parameters x that describe the environmental conditions, driving conditions and / or material properties of the car tire 1 to x n .

[0039] as parameter x 1 to x n In particular, the current outside temperature, other weather data such as humidity and solar radiation, the tire size and / or tire type of the vehicle's tires, the values ​​of speed, acceleration and st...

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PUM

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Abstract

A method for automatically monitoring tire pressure in a vehicle encompasses indirectly determining the actual temperature in a vehicle tire, wherein the actual temperature is ascertained based on empirically determined families of characteristics as a function of parameters that describe environmental conditions, driving conditions and / or material properties of the vehicle tires.

Description

technical field [0001] The invention relates to a device and method for automatically checking the tire pressure of automobiles. Furthermore, the invention relates to a method for displaying tire inflation information of a vehicle, for example on a screen or a segmented display. Background technique [0002] The task of the tire pressure checking system is to check the inflation status of the car tires and send an alarm when the pressure in the car tires drops below a predetermined value. This ensures on the one hand the operational safety of the motor vehicle and on the other hand its economical and fuel-saving operation. [0003] During operation, the temperature of the tires of the car rises, and thus the pressure in the tires rises. Therefore, the required tire pressure is higher when the tire is hot than when it is cold. The difficulty this creates for the driver is that when measuring the pressure on a hot tire, it is necessary to estimate whether the measured press...

Claims

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Application Information

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IPC IPC(8): B60C23/02
CPCB60C23/0476B60C23/0474B60C23/02
Inventor A·波姆H·巴尔德D·巴尔泽C·佛伯
Owner GM GLOBAL TECH OPERATIONS LLC
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