Selective Steering Wheel Transparency for Blocked Driver Notifications

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Solution Overview

Problem

Conventional steering wheels obstruct the view of important vehicle components like instrument clusters and head-up displays, preventing drivers from receiving timely notifications or information.

Innovation Solution

A steering wheel selective transparency system that includes sensors and a projection system, controlled by an electronic control unit, which determines when notifications are blocked by the steering wheel and projects them onto the wheel's surface, making it appear transparent to allow the driver to see crucial information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If the steering wheel is made constantly transparent, then the driver can see the instrument cluster display and head-up display, but the driver is not alerted of undesirable notifications or information

Engineering Contradiction:
Improvevisibility of display dataVSAvoidfailure to alert driver of notifications
Core Design Contradiction:
Loss of informationVSObject-generated harmful factors

Solution Approach 1:

The steering wheel transparency is activated periodically or selectively based on detected conditions rather than continuously. The system monitors for specific conditions (occlusion of display data, presence of notifications) and temporarily activates transparency only when needed, creating a periodic on-demand operation pattern that balances visibility needs with notification alerting capabilities

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The transparency effect is applied locally to specific regions of the steering wheel that occlude important display data, rather than making the entire steering wheel transparent. This allows selective visibility of critical information while maintaining the structural integrity and notification capability of the steering wheel in non-occluding areas

Inventive Principle:
Principle #3Local quality

2Loss of information

If the steering wheel is made constantly transparent, then the driver can see important vehicle components, but the steering wheel structure and material properties are compromised

Engineering Contradiction:
Improvevisibility of instrument clusterVSAvoidsteering wheel structural integrity
Core Design Contradiction:
Loss of informationVSStrength

Solution Approach 1:

The steering wheel transitions between opaque and transparent states dynamically based on operational conditions. This dynamic property allows the steering wheel to maintain its structural strength in opaque state while providing visibility when transparency is activated, resolving the contradiction between structural integrity and information visibility

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The optical parameter (transparency) of the steering wheel is changed on-demand based on detected conditions. The system modifies the transparency parameter temporarily only when display data is occluded, allowing the steering wheel to maintain its normal structural properties most of the time while providing visibility when needed

Inventive Principle:
Principle #35Parameter changes

3Loss of information

If the steering wheel is made transparent, then the driver can see display data behind it, but the driver cannot see the steering wheel surface for proper hand placement

Engineering Contradiction:
Improvevisibility of blocked notificationsVSAvoidhand placement on steering wheel
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The steering wheel transparency is segmented into specific regions rather than applied uniformly. Only the portions of the steering wheel that occlude important display data are made transparent, while other regions remain opaque to provide visual feedback for proper hand placement and maintain operational ease

Inventive Principle:
Principle #1Segmentation

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 drivers to receive important notifications and information without removing their hands from the wheel, ensuring safety and convenience by making the steering wheel temporarily transparent when necessary.

Implementation Method 1

controlling a projection system to project images onto a steering wheel so that the steering wheel appears to be transparent

Methodology Applied
Scientific EffectLight reflection: Reflection

Data Source

PatentUS11975609B1Systems and methods for selective steering wheel transparency and control of the same
Publication Date: 2024.05.07 TOYOTA MOTOR ENG & MFG NORTH AMERICA INC
  • US11975609B1 patent drawing
  • US11975609B1 patent drawing
  • US11975609B1 patent drawing

AI summary

Embodiments herein are directed to a transparent steering wheel system for a vehicle that includes a sensor system, a projection system, and an electronic control unit. The electronic control unit is configured to determine when a plurality of display data displayed on a display device behind a steering wheel is blocked by the steering wheel from a field of view of a driver, determine when a desirable notification is included in the plurality of display data, and when the desirable notification is included and the field of view of the desirable notification for the driver is blocked by the steering wheel, control the projection system to project the desirable notification onto the projection surface of the steering wheel that fully covers the steering wheel such that the steering wheel appears to be transparent when the desirable notification is displayed onto the projection surface.