On-board electrical system for a motor vehicle

A dual-mode radio transmission system in vehicles simplifies receiver design and reduces wiring by transmitting both the modulated signal and reference signal, addressing complexity and cost issues in existing on-board systems and enhancing vehicle efficiency.

DE102010023535B4Active Publication Date: 2026-05-21VOLKSWAGEN AG
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
VOLKSWAGEN AG
Filing Date
2010-06-11
Publication Date
2026-05-21

AI Technical Summary

Technical Problem

Existing on-board vehicle systems require complex and costly receivers due to the integration of components like synthesizers or oscillators for demodulating low-frequency signals, leading to increased weight and assembly costs.

Method used

Implementing a dual-mode radio transmission system where the signal transmitter generates both the modulated useful signal and the reference signal, allowing the receiver to demodulate without generating a reference signal itself, thereby simplifying the receiver design and reducing power consumption.

Benefits of technology

This approach reduces the complexity and weight of the receiver, lowers assembly costs, and eliminates the need for wiring, contributing to reduced CO2 emissions and increased vehicle range by enabling wireless data communication between control units and sensors.

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Abstract

On-board electrical system for a motor vehicle, comprising at least one electrical signal transmitter (1) and at least one electrical signal receiver (2), wherein the signal transmitter (1) can wirelessly transmit a modulated useful signal and a reference signal for demodulating the modulated useful signal separately and / or simultaneously, where the reference signal is itself a carrier signal that has been used to modulate the useful signal, wherein the signal receiver (2) can demodulate the modulated useful signal using the reference signal in order to recover the useful signal.
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