Wireless Vehicle Display System for Easy Replacement

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Solution Overview

Problem

Existing vehicle information display systems lack the ability to easily modify or replace the display components according to user preferences and diverse usage modes, limiting customization and usability.

Innovation Solution

A vehicle information display system utilizing wireless power transmission and signal communication between a master-side instrument and a meter instrument, allowing for non-contact power and signal transfer, enabling easy replacement and customization of display units without physical connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If display components are housed in individual housings with physical connections, then structural stability is maintained, but replacement and customization become difficult

Engineering Contradiction:
ImprovecustomizabilityVSAvoidconnection structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent replaces mechanical electrical connections with wireless communication technology. The display component communicates with the vehicle's control system via wireless signals, eliminating physical electrical connectors. This substitution enables easy replacement and customization of display components without dealing with complex wiring harnesses and electrical connections, directly resolving the contradiction between adaptability and device complexity.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If display components require physical electrical connections, then power supply is reliable, but installation force and durability are compromised

Engineering Contradiction:
Improvepower supplyVSAvoidinstallation ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces mechanical electrical power connections with wireless power transmission or vehicle battery integration. The display component can be powered through wireless energy transfer or by integrating directly with the vehicle's existing power system without physical electrical connectors. This eliminates the need for complex electrical wiring during installation, reducing installation force requirements while maintaining reliable power supply through the vehicle's robust power system.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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

Enables easy replacement and customization of display components, improving usability and customizability, while reducing the force required for installation and enhancing durability by allowing frequent replacements without electrical contact.

Implementation Method 1

a power transmission coil, and a signal transmission coil which are opposed to each other in a state in which the fitting recessed part and the case are fitted to each other

Methodology Applied
Scientific EffectWireless power transmission: Electromagnetic Induction

Implementation Method 2

a power transmission coil, and a signal transmission coil which are opposed to each other in a state in which the fitting recessed part and the case are fitted to each other

Methodology Applied
Scientific EffectWireless signal transmission: Electromagnetic Induction

Data Source

PatentEP3560747B1Vehicle information display system
Publication Date: 2021.03.10 YAZAKI CORP
  • EP3560747B1 patent drawingFigure 1
  • EP3560747B1 patent drawingFigure 2
  • EP3560747B1 patent drawingFigure 3

AI summary

A vehicle information display system (1) includes: a master-side instrument (10) including a first power transmission coil (11), a first signal transmission coil (12), and a first case (15); and a meter instrument (20) including a display unit (26), a second power transmission coil (21), a second signal transmission coil (22), and a second case (25). The master-side instrument (10) and the meter instrument (20) have a positional relation such that in a state in which a fitting recessed part (16) of the first case (15) and the second case (25) are fitted to each other, the first power transmission coil (11) is opposed to the second power transmission coil (21), and the first signal transmission coil (12) is opposed to the second signal transmission coil (22).