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Wireless communication system having a plurality of multiplexed receivers

A wireless communication system and receiver technology, applied in transmission systems, near-field transmission systems, transmission monitoring and other directions

Inactive Publication Date: 2015-01-07
RENAULT SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is thus possible to efficiently transfer energy between a single source and multiple elements to be charged

Method used

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  • Wireless communication system having a plurality of multiplexed receivers
  • Wireless communication system having a plurality of multiplexed receivers
  • Wireless communication system having a plurality of multiplexed receivers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Energy transfer devices, such as those used for contactless battery recharging, establish a link via a radio frequency magnetic field between a transmitter and at least one receiver.

[0025] The coupling members used to establish this link are conductive circuits, such as loops, windings or coils called antenna circuits or antenna coils. A number of electronic components are associated with these antenna circuits, which are designed to function as frequency tuning, damping and impedance matching. The assembly then forms an antenna, in particular an inductive antenna.

[0026] figure 1 An inductively coupled transmitter of an inductively coupled system is shown. The transmitter 1 includes a series resonant circuit including a resistor r, an inductor L1 and a capacitor C1. This series resonant circuit has a resonant frequency f1 obtained by the following equation:

[0027] ω 1 =2πf 1 (Equation 1)

[0028] L 1 C 1 ω 1 2 =1 (equation 2)

[0029] This serie...

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PUM

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Abstract

The invention relates to a wireless communication system for a motor vehicle provided with a removable battery, including a transmitter (1) which is to be rigidly connected to the vehicle and which is capable of being connected to an electronic control unit of the vehicle, and at least one receiver (5) which is to be rigidly connected to the removable battery and which is to be connected to at least one sensor for measuring a parameter of the removable battery, the transmitter (1) and the receivers being capable of exchanging data via an inductive coupling.

Description

technical field [0001] The present invention belongs to the field of contactless communication, more precisely to the field of contactless communication in a metal environment. Background technique [0002] It is known to use a transmitter to provide an electromagnetic field to power a receiver through inductive coupling. It is thus possible to efficiently transfer energy between a single source and multiple elements to be charged. One application is the recharging of batteries with multiple cells. [0003] Regardless of the method of energy transfer, however, to effectively recharge a battery requires a number of measurements, such as the voltage at the battery's terminals, its temperature, and the current flowing between its terminals. [0004] In order not to hinder the establishment of this effective contactless charging, these contactless measured values ​​must also be transmitted. [0005] The document DE102009035472 provides a device for reading the state of charge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B5/00H04B17/00H02J50/00H02J50/10H02J50/12H02J50/40H02J50/80H04B5/48
CPCH04B5/0081H04B17/0025H04B5/0031H04B17/18H04B5/26H04B5/263H04B5/266H04B5/72H04B1/3822H04B1/40
Inventor A·博奥克斯普列托S·巴凯
Owner RENAULT SA