{"id":79740,"date":"2023-01-25T12:31:42","date_gmt":"2023-01-25T12:31:42","guid":{"rendered":"https:\/\/www.dubizzle.com\/blog\/cars\/?p=79740"},"modified":"2023-01-25T12:31:44","modified_gmt":"2023-01-25T12:31:44","slug":"nvh-technology","status":"publish","type":"post","link":"https:\/\/www.dubizzle.com\/blog\/cars\/nvh-technology\/","title":{"rendered":"All about NVH Technology in Cars"},"content":{"rendered":"\n<p>The Noise, Vibration and Harshness (NVH) technology is used to reduce the noise in cars. The noises and vibrations in a car are produced by internal or external factors and in turn, decrease the ride quality. Throughout the decades, automotive brands have worked for various configurations of technology to improve in-cabin comfort.<\/p>\n\n\n\n<p>That said, Automotive NVH technology is used in all vehicles, whether electric or conventional to provide a quality ride experience. Let\u2019s go through the details of the NVH technology and its benefits.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-is-nvh-in-cars\"><strong>What is NVH in Cars?<\/strong><\/h2>\n\n\n\n<p>NVH refers to \u201cNoise, Vibration and Harshness\u201d- the disruptive noises produced by a vehicle during a journey. NVH in a car can be caused by the faulty <a href=\"https:\/\/www.dubizzle.com\/blog\/cars\/car-engine-parts-types\/\" target=\"_blank\" rel=\"noreferrer noopener\">parts of the car engine<\/a> or it can be due to external factors such as road or wind noise.&nbsp;<\/p>\n\n\n\n<p>To solve this problem, NVH technology is used in vehicles to reduce those effects. It involves regulating the engine speed, controlling suspension movement and coordinating braking.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-causes-of-nvh\"><strong>Causes of NVH<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"640\" src=\"https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115638\/N.V.H-Technology-in-Cars-_-Body-1-24-1-23-1024x640.jpg\" alt=\"nvh technology in cars\" class=\"wp-image-79747\" srcset=\"https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115638\/N.V.H-Technology-in-Cars-_-Body-1-24-1-23-1024x640.jpg 1024w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115638\/N.V.H-Technology-in-Cars-_-Body-1-24-1-23-300x188.jpg 300w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115638\/N.V.H-Technology-in-Cars-_-Body-1-24-1-23-768x480.jpg 768w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115638\/N.V.H-Technology-in-Cars-_-Body-1-24-1-23-640x400.jpg 640w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115638\/N.V.H-Technology-in-Cars-_-Body-1-24-1-23-421x263.jpg 421w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115638\/N.V.H-Technology-in-Cars-_-Body-1-24-1-23-558x349.jpg 558w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115638\/N.V.H-Technology-in-Cars-_-Body-1-24-1-23-363x227.jpg 363w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115638\/N.V.H-Technology-in-Cars-_-Body-1-24-1-23-250x156.jpg 250w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115638\/N.V.H-Technology-in-Cars-_-Body-1-24-1-23-368x230.jpg 368w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115638\/N.V.H-Technology-in-Cars-_-Body-1-24-1-23-774x484.jpg 774w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115638\/N.V.H-Technology-in-Cars-_-Body-1-24-1-23-672x420.jpg 672w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115638\/N.V.H-Technology-in-Cars-_-Body-1-24-1-23-437x273.jpg 437w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115638\/N.V.H-Technology-in-Cars-_-Body-1-24-1-23-301x188.jpg 301w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115638\/N.V.H-Technology-in-Cars-_-Body-1-24-1-23-240x150.jpg 240w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115638\/N.V.H-Technology-in-Cars-_-Body-1-24-1-23-771x482.jpg 771w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115638\/N.V.H-Technology-in-Cars-_-Body-1-24-1-23-669x418.jpg 669w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115638\/N.V.H-Technology-in-Cars-_-Body-1-24-1-23-435x272.jpg 435w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>Certain external and internal factors play role in NVH of a car<\/figcaption><\/figure>\n\n\n\n<p>Certain factors play a role when it comes to noise disruption in a car. They can be the <a href=\"https:\/\/www.dubizzle.com\/blog\/cars\/car-brakes-squealing-causes\/\" target=\"_blank\" rel=\"noreferrer noopener\">squealing of car brakes<\/a> or the movement of sliding components such as the <a href=\"https:\/\/www.dubizzle.com\/blog\/cars\/all-about-sunroof\/\" target=\"_blank\" rel=\"noreferrer noopener\">sunroof<\/a>, seats or windows. Put simply, whenever there is an interaction between two friction surfaces, there will be some noise or vibration.<\/p>\n\n\n\n<p>&nbsp;The following are the most common causes of NVH in a car:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>the movement of airflow around the car when it moves forward<\/li><li>&nbsp;interaction of the tyres with the road surface<\/li><li>car\u2019s engine and drivetrain components<\/li><\/ul>\n\n\n\n<p>However, in <a href=\"https:\/\/www.dubizzle.com\/blog\/cars\/electric-cars-uae\/\" target=\"_blank\" rel=\"noreferrer noopener\">electric cars<\/a>, the absence of engine results in no squeaks or rattles. But, there are other components which cause NVH such as cooling fans, mounting brakes, doors and brakes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-is-nvh-testing\"><strong>What is NVH Testing?<\/strong><\/h2>\n\n\n\n<p>The core purpose of NVH testing is to check the inadequacies of a vehicle to improve its performance. It also helps to improve the NVH level of a vehicle. Following are the different types of NVH tests:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Idle Test: <\/strong>Testing is performed when the vehicle is started to measure the idle NVH experienced by the occupants.&nbsp;<\/li><li><strong>Acceleration Test:<\/strong> The car is accelerated to the legal speed limit and the in-cabin disruption is tested.&nbsp;<\/li><li><strong>Constant Speed Test: <\/strong>The NVH which is measured at the constant speed is compared to the NVH measured at a varying range of speeds.<\/li><li><strong>Coast Test: <\/strong>The NVH is measured when the car is slowing down or is in a coasting condition.<\/li><li><strong>Wind Noise Test: <\/strong>The NVH is measured when the car is sped up to 100km\/hr to check the impact of the wind on the vehicle.&nbsp;<\/li><\/ul>\n\n\n\n<p>&nbsp;The NVH level of a car is an element when it comes to NVH testing. A low NVH motor-powered vehicle has a measured acceleration noise of less than 67 dB. When it surpasses 68 dB, the level must be adjusted to ensure an adequate level of comfort.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-to-improve-nvh-level\"><strong>How to Improve NVH Level?<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"640\" src=\"https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115536\/N.V.H-Technology-in-Cars-_-Body-2-24-1-23-1-1024x640.jpg\" alt=\"NVH technology in vehicles\" class=\"wp-image-79746\" srcset=\"https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115536\/N.V.H-Technology-in-Cars-_-Body-2-24-1-23-1-1024x640.jpg 1024w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115536\/N.V.H-Technology-in-Cars-_-Body-2-24-1-23-1-300x188.jpg 300w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115536\/N.V.H-Technology-in-Cars-_-Body-2-24-1-23-1-768x480.jpg 768w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115536\/N.V.H-Technology-in-Cars-_-Body-2-24-1-23-1-640x400.jpg 640w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115536\/N.V.H-Technology-in-Cars-_-Body-2-24-1-23-1-421x263.jpg 421w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115536\/N.V.H-Technology-in-Cars-_-Body-2-24-1-23-1-558x349.jpg 558w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115536\/N.V.H-Technology-in-Cars-_-Body-2-24-1-23-1-363x227.jpg 363w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115536\/N.V.H-Technology-in-Cars-_-Body-2-24-1-23-1-250x156.jpg 250w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115536\/N.V.H-Technology-in-Cars-_-Body-2-24-1-23-1-368x230.jpg 368w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115536\/N.V.H-Technology-in-Cars-_-Body-2-24-1-23-1-774x484.jpg 774w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115536\/N.V.H-Technology-in-Cars-_-Body-2-24-1-23-1-672x420.jpg 672w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115536\/N.V.H-Technology-in-Cars-_-Body-2-24-1-23-1-437x273.jpg 437w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115536\/N.V.H-Technology-in-Cars-_-Body-2-24-1-23-1-301x188.jpg 301w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115536\/N.V.H-Technology-in-Cars-_-Body-2-24-1-23-1-240x150.jpg 240w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115536\/N.V.H-Technology-in-Cars-_-Body-2-24-1-23-1-771x482.jpg 771w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115536\/N.V.H-Technology-in-Cars-_-Body-2-24-1-23-1-669x418.jpg 669w, https:\/\/d2hucwwplm5rxi.cloudfront.net\/wp-content\/uploads\/2023\/01\/24115536\/N.V.H-Technology-in-Cars-_-Body-2-24-1-23-1-435x272.jpg 435w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>NVH levels can be improved by using dampeners and noise absorbers <\/figcaption><\/figure>\n\n\n\n<p>The NVH technology has evolved over the years for all car types. Many NVH-related solutions have been introduced to tackle the problem. That said, there are many <a href=\"https:\/\/www.dubizzle.com\/blog\/cars\/reduce-car-noises\/\" target=\"_blank\" rel=\"noreferrer noopener\">ways to reduce the noises in your car<\/a> and improve its NVH level.&nbsp;<\/p>\n\n\n\n<p>Some of them are:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Use foam noise absorbers and tuned vibration dampers.<\/li><li>Use rubber panel plugs to cover the car panel\u2019s openings.<\/li><li>The right type of car tyre also impacts its NVH level depending on the grooves and the voids in them.<\/li><li>Attach a muffler to the car\u2019s exhaust.<\/li><li>Add dampeners to the car\u2019s flooring to reduce vibration<\/li><li>Opt for an <a href=\"https:\/\/www.dubizzle.com\/blog\/cars\/active-road-noise-cancellation\/\" target=\"_blank\" rel=\"noreferrer noopener\">active road noise cancellation<\/a> feature<\/li><\/ul>\n\n\n\n<p>This is all on the NVH technology in cars. Many automotive brands have adopted the latest advancements in this technology to provide a high-quality driving experience. Therefore, make sure to check these specifications before you <a href=\"https:\/\/uae.dubizzle.com\/motors\/used-cars\/\" target=\"_blank\" rel=\"noreferrer noopener\">buy a used car in the UAE<\/a>.<\/p>\n\n\n\n<p>Stay tuned to <a href=\"https:\/\/www.dubizzle.com\/blog\/cars\/\" target=\"_blank\" rel=\"noreferrer noopener\">UAE&#8217;s top auto blog<\/a> for more information on different car features and technology.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Here are the details of noise, vibration and harshness technology in cars and why it is an essential feature.<\/p>\n","protected":false},"author":40,"featured_media":79750,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"dubizzle-taxonomy-car-year":[],"dubizzle-taxonomy-body-type":[],"dubizzle-taxonomy-car-doors":[],"dubizzle-taxonomy-car-cylinders":[],"dubizzle-taxonomy-car-extras":[],"dubizzle-taxonomy-car-color":[],"dubizzle-taxonomy-car-fuel-type":[],"class_list":{"0":"post-79740","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-driving"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.0 (Yoast SEO v26.0) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>All about NVH Technology in Cars: Causes, Testing &amp; More | dubizzle<\/title>\n<meta name=\"description\" content=\"Here are the details of the NVH technology in cars. 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