Adaptive Touchpad Control for Autonomous Vehicle Displays

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Solution Overview

Problem

Current touchpad systems in autonomous vehicles are limited in functionality and accessibility, particularly in autonomous driving mode, as they only allow simple translational movements, making it time-consuming to access desired functionalities and not optimized for quick access.

Innovation Solution

A control system for a vehicle display screen that adapts to driving modes, switching between a basic configuration for piloted driving (limited movements) and an advanced configuration for autonomous driving (pointer control), including a touch screen with handwriting recognition and virtual keyboard for faster text entry, allowing comprehensive control regardless of seat position.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a touchpad with limited translational movements is used for controlling the display screen, then the system is simple and compatible with piloted driving mode, but the access time to desired functionalities increases significantly in autonomous driving mode

Engineering Contradiction:
Improvetouchpad control systemVSAvoidaccess time to functionalities
Core Design Contradiction:
Device complexityVSLoss of time

Solution Approach 1:

The touchpad system dynamically adapts its functionality based on the detected driving mode. In piloted mode, it provides basic translational movements for simplicity. In autonomous mode, it activates advanced pointer control capabilities with diagonal movements and direct access to frequently used functions, thereby reducing access time without increasing physical complexity

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters of the touchpad based on driving mode detection. In autonomous mode, it enables enhanced movement patterns including diagonal swipes and direct pointer control, transforming the touchpad from a simple directional controller to a sophisticated input device that reduces navigation time to desired functions

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If control buttons are integrated close to the steering wheel or dashboard, then accessibility is improved in piloted mode, but the driver can access these controls only with difficulty when the seat position changes in autonomous mode

Engineering Contradiction:
Improveaccessibility of controlsVSAvoidadaptability to seat position
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The control system is designed to function universally across different seat positions and driving modes. The touchpad interface remains accessible from various seating positions, and the system adapts its control scheme based on detected mode rather than physical position, providing consistent ease of operation regardless of where the driver sits

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system automatically detects the driving mode and adjusts its interface and control sensitivity accordingly, eliminating the need for manual reconfiguration when seat position changes. The autonomous mode activation automatically optimizes control accessibility without driver intervention

Inventive Principle:
Principle #25Self-service

3Ease of operation

If the display screen remains active and accessible during piloted driving mode, then user access to functionalities is simplified, but driver distraction increases

Engineering Contradiction:
Improveaccess to functionalitiesVSAvoiddriver distraction
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The system applies different operational qualities to the display and control system based on driving mode. In piloted mode, the display presents simplified information with limited functionality access to minimize distraction. In autonomous mode, full functionality and detailed information become available, providing local optimization for each operational context

Inventive Principle:
Principle #3Local quality

4Device complexity

If a touchpad allowing only simple translational movements is used, then the control system remains simple, but the number of accessible functionalities is limited

Engineering Contradiction:
Improvetouchpad functionalityVSAvoidnumber of accessible functionalities
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The touchpad dynamically expands its functionality based on detected driving mode. In autonomous mode, it activates advanced features including diagonal movements, direct pointer control, and shortcuts to frequently used functions, transforming from a simple directional pad to a comprehensive input device without requiring hardware changes

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system pre-configures快捷 ways and direct access paths to commonly used functionalities that are activated in autonomous mode. This preliminary preparation of access routes enables quick navigation to navigation, climate control, and entertainment functions without requiring sequential navigation through multiple menus

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3672824B1System and method for controlling a main monitor of an autonomous vehicle
Publication Date: 2022.04.27 PSA AUTOMOBILES SA
  • EP3672824B1 patent drawingFigure 1~2
  • EP3672824B1 patent drawingFigure 3A~4
  • EP3672824B1 patent drawingFigure 5

AI summary

The invention relates to a control system (2) for controlling a main monitor (10) of a motor vehicle, said control system (2), configured so as to be installed on a central console (12), comprising a display screen and a touchscreen. Said control system (2) havs a first mode of operation in which said display screen is in an inactive state and the touchscreen is in a basic configuration, and a second mode of operation in which said display screen is in an active state and the touchscreen is in an advanced configuration; the control system furthermore comprises a control module configured so as to put the control system into said first mode of operation when the vehicle is in a driven driving mode or into said second mode of operation when the vehicle is in an autonomous driving mode.