EV Engine Sound Broadcasting Using Sensor-Driven Audio Synthesis
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Solution Overview
Problem
Existing sound broadcasting devices for electric vehicles do not effectively replicate the sound of internal combustion engine vehicles, lacking sensors that can convert performance parameters into corresponding audio signals for realistic sound simulation.
Innovation Solution
An electronics module with sensors attached to operating elements of an electric motor vehicle generates output signals processed by a computer to produce composite digital signals, which are then converted to analog signals and broadcast through speakers, mimicking the sounds of internal combustion engine vehicles, including dynamic adjustments based on location and speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensors and computer processing are added to generate realistic combustion engine sounds for electric vehicles, then sound realism is improved, but device complexity increases
Solution Approach 1:
The patent creates a digital copy of internal combustion engine sounds by recording reference ICEV sounds and processing them through computer algorithms. The system captures performance parameters and generates corresponding audio signals that replicate the acoustic characteristics of combustion engines, thereby achieving realistic sound reproduction without actual mechanical engines.
Solution Approach 2:
The patent replaces the mechanical sound-generating system of internal combustion engines with an electronic signal processing system. Sensors detect vehicle performance parameters, which are then converted into audio signals through computer processing and DAC conversion, substituting mechanical vibration and combustion noise with electronically synthesized sounds.
2Measurement precision
If multiple sensors are attached to operating elements to capture performance parameters, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent employs a multi-functional computer system that performs multiple tasks: receiving data from various sensors, processing signals through algorithms, selecting appropriate reference sounds, and generating composite audio outputs. This universal processing unit handles diverse performance parameters (speed, acceleration, load) through a single integrated system rather than requiring separate dedicated devices for each function.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables a realistic simulation of internal combustion engine sounds for electric vehicles, enhancing user experience by creating a more authentic auditory experience, particularly in racing environments where multiple vehicles can contribute to a collective sound effect.
Implementation Method 1
Each sensor is configured to be operationally engaged to a respective operating element of the EMV, to measure at least one performance parameter of the respective operating element, and to generate an output signal
Implementation Method 2
The DAC is configured to convert the composite digital signal to an analog signal and is enabled to communicate the analog signal to a speaker for broadcast
Implementation Method 3
The DAC is configured to convert the composite digital signal to an analog signal and is enabled to communicate the analog signal to a speaker for broadcast
Data Source
AI summary
A dynamic combustion engine sound broadcasting device for making an electric motor vehicle (EMV) sound like an internal combustion engine vehicle (ICEV) includes an electronics module (EM), which is mountable to the EMV. The EM comprises a set of sensors and a digital to analog converter (DAC), which are operationally engaged to a computer. Each sensor is operationally engageable to a respective operating element of the EMV to measure a performance parameter and to generate an output signal. An algorithm on the computer pairs each output signal with an associated sound, corresponding to a sound produced by a respective mechanical element of a reference ICEV at a respective performance level, and generates a composite digital signal. The sounds are retained on the computer as digital audio signals in a plurality of data sets. The DAC converts the composite digital signal to an analog signal for broadcast by a speaker.