last100powerballnumbers| What does new energy vehicle nvh mean?

in the new energy vehiclelast100powerballnumbersR & D and evaluationlast100powerballnumbersNVH is an important indicator that cannot be ignored. NVH is an abbreviation for Noise, Vibration and Hardness, and is directly related to the comfort and driving experience of a vehicle. For new energy vehicles, due to the particularity of their power systems, the performance of NVH is particularly critical.

First, let's talk about noise. New energy vehicles, especially electric vehicles, are usually quieter than traditional fuel vehicles due to the working principle of their electric motors. However, this does not mean that new energy vehicles have no challenges in noise control. For example, the high-frequency whistle, wind noise and road noise of motors all need to be controlled through careful design and material selection. In addition, cooling fans of battery packs and electronic control systems may also generate noise, which are the focus of NVH optimization for new energy vehicles.

Secondly, vibration is another aspect that needs attention. Electric vehicle motors produce unique vibration patterns when starting and accelerating. If these vibrations are not properly handled, they can affect the riding comfort of the vehicle. Therefore, these vibrations can be effectively reduced by optimizing the layout of the motor and transmission system and using efficient damping materials.

Finally, roughness refers to the vehicle's response to uneven road surfaces during driving. Due to their different chassis structures and power systems, new energy vehicles may show different roughness characteristics from traditional vehicles. This requires special attention to the matching of the suspension system and the rigid design of the chassis during design and adjustment to ensure good road adaptability and riding comfort.

Indicators Traditional vehicles New energy vehicles Engine noise is the main motor noise, wind noise, road noise Vibration engine and transmission system Vibration motor and battery pack Vibration Roughness Suspension system Adjustment Suspension and chassis rigidity design

To sum up, the NVH performance of new energy vehicles is an important indicator to measure their technological maturity and market competitiveness. Through continuous research and development and technological innovation, the performance of new energy vehicles in NVH is gradually improving, bringing users a more comfortable and tranquil driving experience.