Virtual Vehicle Tire Squealing Sound Generation via Load and Slip Angle
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Solution Overview
Problem
Conventional simulation game devices do not adequately generate realistic squealing sounds, lacking sufficient tone changes and rationality to accurately represent a virtual vehicle's behavior and running conditions, which limits player understanding and immersion.
Innovation Solution
A computer program that calculates the load and slip angle of virtual vehicle tires to control the volume and pitch of squealing sounds, generating more realistic and varied sound effects by focusing on these parameters, and selectively outputting squealing sounds based on load ranges and viewpoint changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional loop tone or single tone is used for squealing sound generation, then the device complexity is reduced, but the sound quality realism and tone variation are insufficient
Solution Approach 1:
The patent applies dynamics by making the sound generation system adjustable and adaptive rather than fixed. The squealing sound generation is dynamically controlled based on real-time calculation of load and slip angle parameters, allowing the sound characteristics to change continuously according to vehicle conditions. This resolves the contradiction by enabling realistic sound variation without requiring multiple pre-recorded tones, as the system adapts dynamically to different driving scenarios.
Solution Approach 2:
The patent changes physical parameters (load and slip angle) that directly influence squealing sound characteristics. By calculating these parameters in real-time and using them to control sound generation, the system achieves realistic tone variations. This approach replaces complex multi-tone systems with a simpler parameter-based control mechanism that naturally produces realistic sound changes based on vehicle physics.
2Loss of information
If multiple tone groups are used to represent different vehicle behaviors, then the sound information rationality improves, but the device complexity and computation load increase
Solution Approach 1:
The patent extracts the essential physical parameters (load and slip angle) that determine squealing sound characteristics from complex vehicle dynamics. Instead of using multiple pre-defined tone groups, the system extracts and utilizes only the critical parameters needed to generate realistic sounds. This simplifies the system by removing unnecessary complexity while retaining the essential information needed for realistic sound generation.
Solution Approach 2:
The patent replaces a mechanical sound selection system (choosing from pre-recorded tone groups) with a physics-based computational approach. By substituting the mechanical selection process with mathematical calculations of load and slip angle, the system achieves more rational and continuous sound variation without the discrete steps inherent in tone group selection. This substitution enables more realistic sound information while reducing the complexity of managing multiple tone sets.
3Measurement precision
If squealing sound is generated based on detailed tire parameters, then the measurement precision of vehicle behavior improves, but the ease of operation and implementation becomes more difficult
Solution Approach 1:
The patent applies partial action by focusing on only the most critical parameters (load and slip angle) that have the greatest influence on squealing sound characteristics. Instead of analyzing all possible tire and vehicle parameters, the system selectively measures and utilizes only the essential ones needed for accurate sound generation. This approach achieves high measurement precision for the relevant parameters while keeping the implementation straightforward and manageable.
Data Source
AI summary
A computer program product for causing a computer of an information processing device to execute processing for generating a sound that is generated by a mobile object with a plurality of tires, which moves on a predetermined surface within a virtual three-dimensional space, the computer being caused to execute the steps of: controlling the movement of the mobile object; calculating a load applied to at least one of the tires of the mobile object; controlling, on the basis of the load, a volume and a pitch of a squealing sound generated from the tires; and outputting the squealing sound. The computer is further caused to execute the steps of calculating a slip angle of at least one of the tires of the mobile object, and changing the tone of the squealing sound on the basis of the slip angle.