Adaptive Carrier Frequency Sensor Bus for Automotive Power Data

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Solution Overview

Problem

Automotive systems face challenges in simultaneously improving power delivery and data transmission over dual-purpose buses, as enhancing one aspect typically degrades the other.

Innovation Solution

The use of modulation techniques at adaptively selected carrier frequencies for data transmission, allowing for enhanced data rates and reduced power consumption, while also enabling efficient power and data transfer over a system bus by identifying suitable channels and dynamically adjusting carrier frequencies to mitigate noise and distortion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If power delivery is improved over the dual-purpose bus, then power supply capability is enhanced, but data transmission quality deteriorates

Engineering Contradiction:
Improvepower delivery capabilityVSAvoiddata transmission quality
Core Design Contradiction:
PowerVSReliability

Solution Approach 1:

The patent segments the dual-purpose bus into distinct power delivery paths and data transmission paths by using different frequency ranges. Power is delivered through lower frequency components while data is transmitted through higher frequency components, allowing both functions to operate simultaneously without mutual interference. This frequency-based segmentation resolves the contradiction by physically separating the two functions in the frequency domain.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a frequency dimension to separate power and data functions that share the same physical bus. By assigning different frequency ranges to power delivery and data transmission, the system transforms a one-dimensional conflict (shared bus) into a multi-dimensional solution (frequency-separated channels), enabling both functions to coexist without degradation.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If data transmission quality is improved over the dual-purpose bus, then communication reliability is enhanced, but power delivery capability deteriorates

Engineering Contradiction:
Improvedata transmission qualityVSAvoidpower delivery capability
Core Design Contradiction:
ReliabilityVSPower

Solution Approach 1:

The patent segments the dual-purpose bus into distinct power delivery paths and data transmission paths by using different frequency ranges. Power is delivered through lower frequency components while data is transmitted through higher frequency components, allowing both functions to operate simultaneously without mutual interference. This frequency-based segmentation resolves the contradiction by physically separating the two functions in the frequency domain.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a frequency dimension to separate power and data functions that share the same physical bus. By assigning different frequency ranges to power delivery and data transmission, the system transforms a one-dimensional conflict (shared bus) into a multi-dimensional solution (frequency-separated channels), enabling both functions to coexist without degradation.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Productivity

If modulation techniques are used for data transmission, then data rates are enhanced, but power consumption increases

Engineering Contradiction:
Improvedata transmission rateVSAvoidpower consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The patent changes the frequency parameter of the carrier signal adaptively based on channel conditions. By selecting optimal carrier frequencies from available channels, the system achieves high data transmission rates through modulation while consuming minimal power. The adaptive frequency selection ensures that transmission occurs on the most efficient channel, balancing data rate and power consumption.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent implements dynamic carrier frequency selection where the system continuously monitors channel conditions and adapts the carrier frequency in real-time. This dynamic approach allows the system to achieve high data rates when channel conditions permit while consuming less power when conditions are poorer, resolving the contradiction between transmission rate and power consumption through adaptive behavior.

Inventive Principle:
Principle #15Dynamics

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

This approach effectively balances data transmission rates and power consumption, ensuring reliable communication and operation of automotive systems by adaptively selecting channels and carrier frequencies, thereby improving overall system performance.

Implementation Method 1

The modulation component is configured to modulate a modulated data signal from the generated data using an adaptively selected carrier frequency and a modulation technique

Methodology Applied
Scientific EffectModulation: Phase Modulation

Data Source

PatentUS9965422B2Sensor systems and methods utilizing adaptively selected carrier frequencies
Publication Date: 2018.05.08 INFINEON TECHNOLOGIES AG
  • US9965422B2 patent drawing
  • US9965422B2 patent drawing
  • US9965422B2 patent drawing

AI summary

A sensor system utilizing adaptively selected carrier frequencies is disclosed. The system includes a system bus, a bus master, and a sensor. The system bus is configured to transfer power and data. The bus master is coupled to the system bus and is configured to provide power to the bus and receive data from the bus. The sensor is coupled to the system bus and is configured to transfer data on the bus using an adaptively selected carrier frequency.