The VinFast VF5 2023 has become a focal point, priced at just 458 million VND (excluding the battery) or 538 million VND (including the battery), with numerous incentives allowing users to own this electric vehicle packed with various technologies. Essentially, electric cars in general, including the VinFast VF5, are not noisy due to the absence of an internal combustion engine. However, soundproofing is still necessary for a smoother and more comfortable experience. Why is this the case? Let’s explore this in detail with Hitta!
Sources of Noise in Cars
Causes of Noise in Gasoline & Diesel Cars:
Noise can be categorized into two types: internal noise and external noise.
- Internal Noise: Includes reverberations from external noise, and noise from the car itself such as thin body panels, low chassis, noisy tires and rims, engine noise, and miscellaneous sounds (caused by components colliding, loose joints, etc.).
- External Noise: Comprises all environmental noises that echo into the car, including honking, engines of other vehicles, and the sound of rain hitting the roof.
Causes of Noise in Electric Cars:
Without an internal combustion engine, electric cars reduce a significant amount of noise. However, the remaining noise originates from the surrounding environment, such as wind noise, road noise, tire noise, honking, and engines of other vehicles. Drivers and passengers can still clearly perceive these environmental noises.
Reasons for Noise in the VinFast VF5
As previously discussed, electric cars, including the VinFast VF5, primarily experience noise due to environmental sounds and miscellaneous noises transmitting into the vehicle. Here are the specific reasons:
Environmental and External Noise
The main source of noise in the VinFast VF5 comes from the external environment. Despite the absence of an internal combustion engine, which significantly reduces noise, the car is still affected by:
- Wind Noise: The sound of wind passing over and around the vehicle.
- Road Noise: The noise produced by the tires in contact with the road surface.
- Traffic Noise: Sounds from other vehicles, including honking and engine noises.
These external noises are clearly perceptible to both the driver and passengers, making effective soundproofing essential for a more comfortable ride.
Cost-Effective Design Choices
Priced starting at 458 million VND (excluding the battery), the VinFast VF5 is designed to be an affordable electric vehicle. To keep costs low while integrating advanced technologies, certain structural elements have been simplified:
- Thin Body Panels: Doors, roof, and floor panels are made thinner to reduce weight and cost, compromising sound insulation.
- Simplified Trunk and Wheel Arches: These components are also designed to be lightweight, which reduces their effectiveness in blocking noise.
This cost-saving approach results in less effective soundproofing, making the vehicle noisier compared to higher-end models.
Miscellaneous Noises
Environmental and external noises remain the primary causes of noise in the VinFast VF5. According to a study, at a speed of 48 km/h, electric cars (and hybrid cars when operating in electric mode) are much quieter than internal combustion engine vehicles. The electric motor produces virtually no noise, meaning the main sources of noise are the tires and the wind.
The rotation of magnets in the electric motor can also generate high-frequency sounds during operation, especially noticeable when driving at low speeds.
Environmental Noise Pollution
Environmental noise is notably high in densely populated and urbanized countries like Vietnam. As incomes rise, the number of people owning cars and motorcycles also increases. Consequently, the noise from vehicles on the road intensifies, posing significant health risks, especially with prolonged exposure.
Does the VinFast VF5 Need Soundproofing?
Essentially, yes. As previously mentioned, there are two main reasons to consider soundproofing for the VinFast VF5:
- High-Speed Driving: At high speeds, wind noise and road noise transmitted to the undercarriage and four wheel arches are the primary sources of noise, even more so than the engine.
- Urban Noise: In urban areas, the predominant noise comes from the engines of other vehicles.
If you feel that the VinFast VF5 is noisy (subjectively), it may not be enough to convince you. Hitta can provide a clear, objective result by testing the car’s noise levels according to the IEC 61672 (class 2) standard.
Advantages of Hitta ASV-1102 Soundproofing Material
The ASV-1102 soundproofing material is made from Butyl Rubber, which demonstrates excellent damping properties. The molecules within this material can absorb energy, allowing the molecular chains to rearrange flexibly.
The ASV-1102 soundproofing material from Hitta is lightweight, ensuring that the increase in the vehicle’s weight after installation is minimal, which helps electric vehicles save battery power. Here are the benefits of ASV soundproofing:
- Noise Reduction: It reduces both internal and external noises, ear buzzing, and rattling sounds. The effectiveness of the soundproofing can be verified through car noise testing according to the IEC 61672 (class 2) standard.
- Heat Resistance: With a high heat tolerance of up to 150°C, the ASV-1102 does not produce unpleasant odors or burning smells. It also absorbs some heat, keeping the vehicle cooler and better protected during extremely hot days.
- Enhanced Audio Quality: By eliminating background noise and internal car sounds, the ASV-1102 improves the listening experience, particularly for car audio systems.
- Increased Comfort: It provides a quiet and comfortable environment, reducing motion sickness.
- Improved Focus: By minimizing distractions, it helps drivers concentrate better, thereby reducing the risk of accidents.
- Added Value: Effective soundproofing enhances the vehicle’s value, offering noise reduction comparable to higher-end models.
Hitta JSC is a leading provider of soundproofing, noise absorption, and noise reduction solutions for cars in Vietnam. Renowned for their Hitta ASV-1102 soundproofing products, Hitta has successfully implemented soundproofing solutions for various vehicle types, including buses, passenger cars, and premium limousines. Hundreds of garages across the country trust Hitta’s automotive soundproofing products, and this number continues to grow. Contact us today for consultation.
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