Vehicle Touchscreen Layout Switching for HVAC and Map Visibility

Solution Overview

Problem

Existing vehicle-mounted devices struggle to effectively display operation units for air conditioning and temperature adjustment alongside other image information, such as navigation maps, without compromising user convenience.

Innovation Solution

A vehicle-mounted device with a touchscreen that separates and switches between display patterns for operation units and other image information, adjusting the display regions dynamically based on user needs, with a smaller region for operation units and a larger region for other information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the display region for operation units is made larger, then ease of operation is improved, but the display region for other image information becomes smaller

Engineering Contradiction:
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The display device dynamically switches between first and second display patterns based on detected operation history. When air conditioning or temperature adjustment operations are detected, the system transitions to the first pattern with larger operation unit display region. When other operations are detected, it switches to the second pattern with larger image information display region, making the display adaptable to different usage scenarios

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes display pattern parameters based on operation history detection. By monitoring the type of operations performed (air conditioning controls vs. other functions), the system adjusts the display configuration parameters to optimize either operation ease or image information visibility depending on the detected usage pattern

Inventive Principle:
Principle #35Parameter changes

2Loss of information

If the display region for other image information is made larger, then information display capability is improved, but ease of operation for air conditioning becomes worse

Engineering Contradiction:
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The display device dynamically switches between first and second display patterns based on detected operation history. When air conditioning or temperature adjustment operations are detected, the system transitions to the first pattern with larger operation unit display region. When other operations are detected, it switches to the second pattern with larger image information display region, making the display adaptable to different usage scenarios

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes display pattern parameters based on operation history detection. By monitoring the type of operations performed (air conditioning controls vs. other functions), the system adjusts the display configuration parameters to optimize either operation ease or image information visibility depending on the detected usage pattern

Inventive Principle:
Principle #35Parameter changes

3Device complexity

If a fixed display pattern is used, then device complexity is reduced, but adaptability to different usage scenarios becomes worse

Engineering Contradiction:
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The display device dynamically switches between first and second display patterns based on detected operation history. When air conditioning or temperature adjustment operations are detected, the system transitions to the first pattern with larger operation unit display region. When other operations are detected, it switches to the second pattern with larger image information display region, making the display adaptable to different usage scenarios

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system automatically detects operation history and autonomously switches between display patterns without requiring manual user configuration. The display device serves itself by monitoring its own usage patterns and adjusting the display configuration accordingly, eliminating the need for complex manual setup while maintaining high adaptability

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP4151444B1Vehicle-mounted device, vehicle, control method for vehicle-mounted device, and program
Publication Date: 2025.07.16
  • EP4151444B1 patent drawingFigure 1
  • EP4151444B1 patent drawingFigure 2
  • EP4151444B1 patent drawingFigure 3

AI summary

In a vehicle-mounted device having a touchscreen (10), a controller separately displays a first image (i1) displaying an operation unit (20) that is operated for air conditioning in a vehicle interior or temperature adjustment of pieces of equipment and a second image (i2) displaying image information different from the first image on the touchscreen. The vehicle-mounted device has a first pattern and a second pattern as a display pattern for separately displaying the first image and the second image. The second pattern has a smaller display region for the first image and a larger display region for the second image than the first pattern. The controller separately displays the first image and the second image in a display pattern that is either the first pattern or the second pattern.