This paper proposes a psychoacoustic-based audio-visual mapping framework for intelligent vehicle cabins to enhance immersion; stabilize spatial auditory perception. By establishing mappings between auditory descriptors—such as Direction of Arrival (DOA), spectral centroid,; temporal envelope—and ambient lighting parameters, the framework leverages "ambient vision" to augment the perceptual experience without increasing the driver's cognitive load. Theoretical analysis based on Stevens’ Power Law indicates that the proposed mapping strategies effectively synchronize audio-visual intensities; mitigate perceptual fatigue, providing a conceptual reference for future multisensory HMI design.
