Vehicle Image Display Adjusting Rear Wheel View During Turns

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Solution Overview

Problem

Existing on-vehicle image display systems struggle to allow drivers to visually recognize the grounding position between the rear wheels and the traveling road effectively when turning, either by not including this position sufficiently or reducing visibility of the vehicle's side and rear areas.

Innovation Solution

An on-vehicle image display device that includes an imaging unit capturing the vehicle's side and rear areas, a turning determination unit, a display control unit, and an image setting unit, which adjusts the displayed image based on the vehicle's turning status to ensure the driver can easily see the rear wheels without decreasing visibility of the side and rear areas.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the displayed area includes the grounding position between rear wheels and traveling road when the vehicle turns, then the driver can visually recognize the rear wheel state, but the visibility of the vehicle's side and rear areas is reduced

Engineering Contradiction:

Improvevisual recognition of rear wheel grounding positionVSAvoidvisibility area of vehicle side and rear

Core Design Contradiction:

Measurement precisionVSArea of stationary object

Solution Approach 1:

The patent divides the displayed image into multiple regions: a first region showing the grounding position between the rear wheel and traveling road, and a second region showing other areas on the side and rear of the vehicle. This segmentation allows both the critical grounding position and the broader side/rear visibility to be simultaneously displayed without compromising either.

Inventive Principle:

Principle #1Segmentation

2Ease of operation

If the displayed area is fixed to show the whole area captured by cameras, then the system is simple to operate, but the driver cannot sufficiently confirm the grounding position when the vehicle turns

Engineering Contradiction:

Improvesimplicity of fixed display areaVSAvoidconfirmation of grounding position

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The patent dynamically adjusts the displayed image based on vehicle turning status. When the vehicle is determined to be turning, the system displays an adjusted image that emphasizes the grounding position between the rear wheel and traveling road. When the vehicle is not turning, the system displays the standard fixed area. This dynamic adjustment maintains ease of operation while improving grounding position confirmation when needed.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS10166922B2On-vehicle image display device, on-vehicle image display method for vehicle, and on-vehicle image setting device

Publication Date: 2019.01.01 TOYOTA JIDOSHA KK

AI summary

An image display device includes an imaging unit that captures an area including at least a part of a rear wheel of the vehicle and an electronic control unit that: determines whether the vehicle will turn and travel; displays a whole or a part of the area on a display as a non-turning-time image when it is determined by the electronic control unit that the vehicle will travel without turning; displays the whole or a part of the area on the display as a turning-time image when it is determined by the electronic control unit that the vehicle will turn and travel; and sets the turning-time image in such a way that a driver visually recognizes a state of the rear wheel more easily through the turning-time image than through the non-turning-time image.