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Method and unit for the optimized transmission of measurement of parameters of vehicle tyres

A parameter and vehicle technology, applied in tire measurement, vehicle components, transportation and packaging, etc., can solve the problems of increasing battery life without additional costs

Active Publication Date: 2015-07-22
CONTINENTAL AUTOMOTIVE FRANCE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] The present invention aims to solve the problem of these drifts without additional cost while increasing battery life

Method used

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  • Method and unit for the optimized transmission of measurement of parameters of vehicle tyres
  • Method and unit for the optimized transmission of measurement of parameters of vehicle tyres

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Experimental program
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Embodiment Construction

[0037] figure 1 An exemplary wheel unit 10 according to the invention is illustrated which is intended to be mounted on a valve (not shown) of a vehicle tire. This wheel unit 10 comprises modules for processing data 12 in connection with various components: sensor 14 of temperature "T", sensor 16 of pressure "P", sensor (or accelerometer) 17 of acceleration "A", Memory 18, RF data transmission circuitry 20 and a coin cell battery 22 powers all of these components.

[0038] The processing module 12 includes a comparator device 13 coupled to a processor 15 and a low frequency oscillator (LFO) timing circuit or clock 19 of the processor 15 which adjusts the measurement frequency of the various sensors. Transmitting circuit 20 transmits pressure P (derived from processor 15 of module 12 ) via RF antenna 21 F , temperature T F and acceleration A F The final data D F transmitted to a central unit (not shown).

[0039] The transmit circuit 20 includes a quartz clock or clock 26...

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Abstract

In a system for monitoring the pressure of the tires of a vehicle, it is proposed to compensate the raw data of the parameters of the tires only if the comparison of the successive raw data of at least one reference parameter exhibits a deviation, in absolute value, greater than a determined threshold of variation. In a TPMS monitoring system, each wheel unit includes sensors for measuring the parameters of pressure, temperature and acceleration, and elements of storage and autonomous power supply, in conjunction with a processor. The raw data provided by the sensors are stored, compensated and transmitted as finalized data by a radiofrequency emission circuit to a central unit. It is proposed that the wheel unit also includes, in a processing module, comparison elements, external to the processor, for comparing between successive raw data of one and the same parameter that are provided by the measurement sensors.

Description

technical field [0001] The invention relates to a method and a unit for optimized transmission of measurements of parameters of vehicle tires, in particular pressure, and / or acceleration and / or temperature. Background technique [0002] Tire parameter measurement is performed by sensors in the on-board modules (so-called wheel units) of systems for monitoring the pressure of tires, of the type commonly known as TPMS (acronym for "Tire Pressure Monitoring System") of. [0003] In a TPMS system, each wheel unit includes sensors for measuring parameters of pressure, and / or temperature, and / or acceleration, as well as storage means and self-contained power supplies, usually in the form of batteries, plus a processor , wherein the processor is configured to process data provided by the sensor according to a given time base. An internal time base regulates the timing of the tasks of these various elements that make up each wheel unit. [0004] In particular, a time base periodi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60C23/04
CPCB60C23/0408
Inventor Y.瓦西利夫
Owner CONTINENTAL AUTOMOTIVE FRANCE
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