Adaptive In-Vehicle Sound Playback for Changing Cabin Conditions

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Solution Overview

Problem

In-vehicle sound systems lack adaptability to varying cabin environments, requiring manual user intervention for mode selection and failing to optimally reproduce sound due to inadequate environmental adaptation.

Innovation Solution

An in-vehicle adaptive sound playback method utilizing a domain controller that acquires environmental data, analyzes sound playback parameters, regulates loudspeaker states, and processes audio signals to ensure compatibility with the current environment, eliminating the need for manual adjustments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the in-vehicle sound system uses a fixed sound reproduction mode, then the device complexity is reduced, but the adaptability to different cabin environments deteriorates

Engineering Contradiction:

Improvesound system configurationVSAvoidcabin environment adaptation

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The sound system dynamically adjusts its configuration based on real-time environmental sensing. The domain controller continuously monitors cabin conditions (noise levels, passenger presence, seating positions) and automatically reconfigures sound playback parameters, speaker activation, and audio routing to optimize the acoustic experience for the current cabin state without requiring manual user intervention.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The sound system performs self-adjustment through integrated sensors and automated control algorithms. The system independently assesses cabin environmental parameters and autonomously optimizes sound reproduction settings, eliminating the need for users to manually select modes or adjust parameters, thereby maintaining simplicity while achieving high adaptability.

Inventive Principle:

Principle #25Self-service

2Adaptability or versatility

If the in-vehicle sound system provides multiple sound reproduction modes, then the adaptability to different cabin environments is improved, but the ease of operation deteriorates due to manual mode selection requirements

Engineering Contradiction:

Improvecabin environment adaptationVSAvoidmode selection process

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The sound system autonomously determines the appropriate reproduction mode by analyzing sensor data from the cabin environment. The domain controller processes environmental parameters (noise levels, occupancy, seating positions) and automatically selects and switches between different sound modes (e.g., driver-focused, passenger-focused, ambient) without requiring any user input, making the system both highly adaptable and easy to operate.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system continuously monitors cabin environmental feedback through sensors and uses this information to automatically adjust sound reproduction modes. The closed-loop control ensures the sound system responds dynamically to changing cabin conditions, maintaining optimal performance across various scenarios while eliminating manual mode selection for the user.

Inventive Principle:

Principle #23Feedback

3Device complexity

If the in-vehicle sound system relies on software parameter changes for mode switching, then the device complexity is reduced, but the adaptability to different cabin environments deteriorates

Engineering Contradiction:

Improvecontrol mechanismVSAvoidcabin environment compatibility

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The system employs dynamic control that goes beyond static software parameter changes. The domain controller actively adjusts both software parameters and physical system states (speaker power states, audio routing configurations) based on real-time environmental sensing, enabling the sound system to adapt to diverse cabin conditions while maintaining a unified control architecture that does not significantly increase device complexity.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS12568332B2In-vehicle adaptive sound playback method, sound system and domain controller

Publication Date: 2026.03.03 AAC MICROTECH (CHANGZHOU) CO LTD

AI summary

The present application provides an in-vehicle adaptive sound playback method, a sound system, and a domain controller. The present application utilizes a domain controller to obtain environmental data indicative of the environment of the cockpit, analyze sound playback parameters corresponding to the environmental data, and then regulate the physical state of each speaker according to the physical state parameters, process the audio signals to be played back according to the sound effect parameters, and finally transmit the processed target audio signal to each speaker regulated, and the loudspeakers carry out sound playback of the target audio signal. It is understood that when the environment of the cockpit changes, the sound playback parameters will also change accordingly, i.e., the sound playback has strong adaptability to different cockpit environments, and the optimal sound playback effect can be obtained under different cockpit environments, thereby bringing a preferred acoustic experience for the user.