Vehicle TTY Interface for Automatic Accessibility Setup
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Solution Overview
Problem
In rideshare scenarios, passengers often face inconvenience in connecting their mobile devices to a vehicle's system to share information with the driver, as existing settings are separate and require manual navigation, which is cumbersome and not optimized for brief interactions.
Innovation Solution
A teletypewriter (TTY) system for vehicles that includes a display, infotainment head unit (IHU), microphone, and imager, which automatically adjusts accessibility and audio settings based on detected user devices, voice data, image data, and digital key profiles, using a TTY application to streamline the setup process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual navigation to vehicle settings is required to connect mobile devices, then system settings can be adjusted, but user convenience and ease of operation deteriorate
Solution Approach 1:
The system performs preliminary actions by automatically detecting the mobile device and pre-configuring connection parameters before the user needs to connect. The TTY application is pre-loaded and ready to execute, and the system proactively identifies the device type and settings requirements, eliminating the need for manual navigation through settings menus.
Solution Approach 2:
The system serves itself by automatically detecting the mobile device, identifying its type (TTY, audio device, etc.), and configuring the appropriate settings without requiring user intervention. The ECU autonomously manages the connection process, selecting and applying the correct profile based on device detection, thereby making the system self-sufficient in establishing connections.
2Adaptability or versatility
If separate settings are maintained for vehicle and mobile device, then device independence is preserved, but system integration and communication capability worsen
Solution Approach 1:
The system implements universality by creating a unified settings management framework that handles multiple device types (TTY devices, audio devices, standard mobile devices) through a single integrated system. The ECU and TTY application can adapt to various device types using common detection and configuration mechanisms, allowing the system to serve multiple functions while maintaining a unified approach to settings management.
Solution Approach 2:
The TTY application acts as an intermediary layer between the vehicle's ECU and the mobile device. It translates between the vehicle's setting formats and the device-specific requirements, enabling seamless integration while maintaining independence of individual components. This intermediary facilitates communication and settings synchronization without requiring direct complex interactions between the ECU and diverse device types.
3Ease of operation
If TTY application automatically executes upon device detection, then ease of operation improves, but risk of incorrect settings application worsens
Solution Approach 1:
The system incorporates feedback mechanisms where the TTY application continuously monitors device detection results and verifies setting application outcomes. The ECU receives feedback from the TTY application about which device is detected and what settings have been applied, allowing for verification and correction if needed. This feedback loop ensures that automatic execution maintains reliability by confirming that the correct settings are applied to the correct device.
Solution Approach 2:
The system dynamically adapts its behavior based on real-time device detection and user context. Rather than rigidly applying predetermined settings, the TTY application dynamically selects and adjusts settings based on the specific device type detected, the current vehicle state, and user preferences stored in the driver profile. This dynamic approach ensures settings are both automatically applied and contextually appropriate, maintaining reliability.
Data Source
AI summary
A teletypewriter (TTY) system for a vehicle includes a display, a microphone coupled to the vehicle and configured to capture voice data, and an imager coupled to the vehicle and configured to detect image data. The TTY system includes an electronic control unit (ECU) that is communicatively coupled to the display, the microphone, and the imager. The ECU includes a TTY application and is configured to project the TTY application on the display in response to at least one of the voice data and the image data.