Method for monitoring an air pressure in at least one tyre of a motor vehicle

A technology for motor vehicles and tires, applied in tire measurement, tire parts, vehicle parts, etc.

Active Publication Date: 2016-02-17
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, this results in the driver of the vehicle having to leave the ignition key in the vehicle during his service work at a petrol station etc. in case the tir

Method used

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  • Method for monitoring an air pressure in at least one tyre of a motor vehicle
  • Method for monitoring an air pressure in at least one tyre of a motor vehicle
  • Method for monitoring an air pressure in at least one tyre of a motor vehicle

Examples

Experimental program
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Embodiment Construction

[0042] first reference figure 1 . The figure shows a motor vehicle K with four tires 10 equipped with measuring electronics 11 .

[0043] Measuring electronics 11 is self-sufficient in terms of supply voltage from the on-board network voltage of motor vehicle K and is designed to measure tire pressure P present in tire 10 , tire temperature T and wheel speed n.

[0044] Measuring electronics 11 also has a transmitter, not shown in detail, by means of which data packets D can be transmitted wirelessly to a tire pressure check controller (RDK controller) 12 . Furthermore, the RDK controller 12 has on its part a receiver which is not shown in detail.

[0045] The RDK controller 12 is an integral part of the vehicle-mounted network composed of multiple CAN buses, and different controllers are interconnected via the vehicle-mounted network.

[0046] For example, two CAN buses CAN1 and CAN2 are shown, which are connected to one another via a gateway 13 .

[0047] The additionall...

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Abstract

The invention relates to a method for monitoring an air pressure (p) in at least one tyre (10) of a motor vehicle (K), wherein at least one air pressure (p) in the tyre (10) is detected by means of at least one measuring electronics unit (11) present in the tyre (10) and data (D) is transmitted by the measuring electronics unit (11) to a control unit (12). Depending on the data (D), the control unit (12) activates components (14, 15) of the motor vehicle (K) to generate optical and/or acoustic signals. According to the invention, the control unit (12) is switched into an after-running mode for a defined period of time when an ignition of the motor vehicle (K) is shut off, in which mode the control unit (12) can continue to receive data (D) from the measuring electronics unit (11) and, depending on the data (D), can activate components (14, 15) of the motor vehicle (K) to generate optical and/or acoustic signals. This makes it possible for a vehicle driver to actively change a tyre pressure even with the ignition key removed, whereby a danger of theft and a load on the battery during such a process is reduced.

Description

technical field [0001] The invention relates to a method for monitoring the air pressure in at least one tire of a motor vehicle with the features of the preamble of claim 1 . Background technique [0002] Such a method is known, for example, from DE 10 2008 003 845 A1. Here, the data measured by the tire measuring electronics, such as pressure and temperature, are transmitted wirelessly to the central control unit. After evaluating the received measurement data, the control unit transmits corresponding information or commands to a suitable display device. Speech output or use of sound signals has also been proposed. [0003] Document WO 2011 / 004229 A1 describes a tire pressure monitoring system, in which the turn signal lamps or warning flashers and the vehicle are activated via a control unit in order to generate a visual and / or audible warning signal based on the measured tire pressure trumpet. [0004] The measurement data transmitted wirelessly by the measuring elec...

Claims

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Application Information

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IPC IPC(8): B60C23/04
CPCB60C23/0484B60C23/0403B60C23/0405B60C23/0406
Inventor K-J.吉尔
Owner VOLKSWAGEN AG
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