Single Transceiver Frequency Modulation for Automotive Power Line Communications

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Solution Overview

Problem

Tractor-trailers require multiple transceivers and hardware to handle communications at different speeds due to the use of varying communication protocols, which is inefficient and incompatible with existing systems.

Innovation Solution

A system and method that uses a single transceiver with a frequency control circuit to modulate signals between different frequencies, enabling communication with multiple electronic systems using the same power line, thereby eliminating the need for separate transceivers for different speeds.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple transceivers are used to handle different communication speeds, then communication compatibility with various systems is improved, but device complexity and hardware requirements increase

Engineering Contradiction:
Improvecommunication compatibilityVSAvoidhardware requirements
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a single transceiver that can communicate with multiple electronic systems operating at different speeds (e.g., 9600 baud and higher speeds) by dynamically adjusting its operating parameters. The transceiver is configured to detect the communication speed of the target system and adapt its transmission characteristics accordingly, eliminating the need for multiple dedicated transceivers for different communication protocols.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent employs dynamic frequency adjustment and variable transmission parameters within the single transceiver. The system can change its operating frequency and transmission characteristics in real-time based on the detected communication requirements of different electronic systems, allowing one transceiver to serve multiple communication standards dynamically.

Inventive Principle:
Principle #15Dynamics

2Speed

If multiple transceivers are used for different communication protocols, then ability to handle high-speed communications is improved, but ease of operation and system simplicity deteriorate

Engineering Contradiction:
Improvecommunication speedVSAvoidsystem simplicity
Core Design Contradiction:
SpeedVSEase of operation

Solution Approach 1:

The single transceiver is designed to handle multiple communication speeds and protocols universally. It can automatically detect the required communication speed and adjust its parameters accordingly, providing high-speed communication capability while maintaining operational simplicity through automated adaptation rather than requiring manual configuration or multiple dedicated devices.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Facilitates high-speed communications while maintaining compatibility with legacy systems, allowing for efficient transmission and reception of signals at multiple frequencies using a single transceiver, reducing hardware requirements.

Implementation Method 1

The frequency control circuit is configured to determine whether the second electronic system is configured to receive the output signal at the first frequency or at a second frequency different than the first frequency and to modulate the frequency of the output signal to the second frequency

Methodology Applied
Scientific EffectFrequency modulation: Phase Modulation

Implementation Method 2

Power line communication (PLC) is a communication method in which data is transmitted over wires that are also used to deliver electric power

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS12057894B2High speed power line communications for automotive tractors and trailers
Publication Date: 2024.08.06 BENDIX COMMERCIAL VEHICLE SYSTEMS LLC
  • US12057894B2 patent drawing
  • US12057894B2 patent drawing
  • US12057894B2 patent drawing

AI summary

A system for transmitting and receiving signals having varying frequencies along a power line within a vehicle is provided. A transceiver is configured to transmit output signals to and receive input signals from various electronic systems on a vehicle along a power line at a first frequency. A frequency control circuit determines whether the destination system for the output signal is configured to receive the output signal at the first frequency or a different frequency and modulates the frequency of the output signal if necessary. The frequency control circuit also determines, prior to receipt by the transceiver, whether the input signal has the first frequency or different frequency and modulates the frequency of the input signal if necessary.