作者：郭晁昕
对话新能源
空气是一种看不见摸不着的东西。但是，当我们的车辆在高速行驶时，就会发现它其实带来了很大的阻力，从而导致汽车油耗增加。正如我们在逆风而行时，就需要我们耗费很大的体力。所以，研发低风阻汽车是我们目前的趋势所向。
首先我们来说什么是风阻系数：
风阻系数这一概念，通俗点来说就是汽车在行驶过程中跟空气产生的一个对抗。风阻系数越大，汽车所受到的行驶阻力就越大。汽车为了前进，需要克服阻力做功，便需要更大的牵引力，而发动机就需要输出更多的功率。发动机功率的增加直接影响能源的消耗率，从而间接影响汽车的续航。
我们的低风阻有什么优势呢?
1、低风阻可以降低耗电量
一般在综合工况下，风阻系数每降低10%，耗电量大概能够节省3%。车的行驶阻力与车速的平方成正比，消耗功率则与车速的三次方成正比。随速度增大，车的风阻就会按平方规律增加。即每当速度增加2倍时，阻力增加为4倍，而消耗功率则增大为8倍。而风阻系数可以看成是行驶阻力与车速平方之间的比值，同样速度下风阻系数大的车阻力就大，消耗功率就大。反之空气阻力小，消耗功率也小。
2、低风阻可以降低NVH提高行驶舒适性
因为汽车在行驶过程中，周围的气流在汽车的不同外形之处产生了尺度大小不同的漩涡或紊乱的流动，尤其是在车后部及前车窗边。大小漩涡的产生将消耗能量，使漩涡区尤其是车尾部的压力降低，这是引起汽车阻力增大的重要原因。
所以，为降低我们的用车成本，减少充电费用，使车辆在行驶时有着更好的静谧性和稳定性，我们各大车企都在努力的降低汽车的风阻系数，从而使车辆的性能达到最好。
原创文章，作者：cesifu，如若转载，请注明出处：http://www.cesifu.com/article/11095.html
微信扫一扫 
支付宝扫一扫 相关推荐
-
开了多年车，才知道车内有一键除异味，车主：几年白开了_良心国货大赏,香水,文章
“ 买新车的朋友都知道，刚刚买回来的新车里面都有浓厚的塑料味儿，即便是开了多年的老车可能也依然会有各种异味。 那么这些异味怎么才能处理掉了？有些车主表示，开了多年车，才…
-
2019成都车展附近特色美食，开阿斯顿•马丁试吃后，推荐这5家_成都,汽车展览,关爱吃货成长协会,血豆腐,成都车展,馄饨,豪华车,双流,土鸡,阿斯顿·马丁,凉山,辣椒,油泼辣子,探险,烧烤,跳槽那些事儿,多功能休旅车,四川
“ 车辆提供：成都三和汽车集团阿斯顿·马丁销售中心 在成都车展前夕开豪车“逛吃逛吃”是驾仕派的光荣传统，毕竟作为成都“土著”，为来自全国各地观展的朋友奉上一份成都特色美…
-
比奥迪A6L更值得买的进口奥迪，看了价格，宁愿放弃奔驰E级
奥迪A6L在国内是一款十分热门的商务车，当然宝马5系以及奔驰E级的销量也不错。然而比A6L更高一个级别的车型奥迪A7当然也是更值得购买。 外观方面，海外版的奥迪A7同样采用了奥迪家…
-
竹炭包汽车用新车除甲醛除异味专用活性炭车内除味神器吸去味碳包
推荐理由 用的放心~吸甲醛，祛除异味，释放清新空气~快给你的爱车备起来！ 此款商品正在进行限时活动，原来天猫售价39.8元，现有20元优惠券，到手仅需19.8元，绝对超值，有需要可…
-
17年后的牛魔王丰田全新Supra技术解析
[车师傅 新鲜技术解读] 提到丰田你会有着什么样的印象？以“车到山前必有路，有路必有丰田车”而闻名的LC系列，还是以“家用省心开不坏”而闻名的高可靠性？又或者是中国土豪们加价抢…
-
惨烈！6月车市靠大降价止跌反增5%，但更大危机开始蕴酿_郎学红,标致汽车,东风标致301,跳槽那些事儿
车市终于止跌回升！根据乘联会公布的销量数据，6月全国乘用车零售约160.2万台，有希望实现5%的增长。 去年6月开始，车市跌跌不休，并持续至今年5月。在下滑整整12个月后，车市首度…
-
暑期安全行车特辑：夏天使用汽车空调，一开一关就可以吗？_空调,我和夏天最来电,中方县
夏天是汽车空调使用最为频繁的季节，也是驾乘人员最依赖空调的时节。要知道，不适当地使用空调，不仅可能损伤车辆、影响车内人员的健康，严重可能关系到车内人员的生命安全！ 汽车空调的不恰当…
-
潮流科技一个都不少，这4款10万元合资SUV才是互联网青年的最爱_原汁原味的德系SUV,TRAX创酷,上汽集团,高德软件,东风日产乘用车公司,雪佛兰,北京现代ix25,斯柯达汽车,智能手机,北京现代汽车,大众汽车,时尚,Wi-Fi,通用汽车公司,超时空甩尾,我的第一部5G手机,技术,语音识别技术,软件
“ 10-15万左右的预算买什么车？这是一个老生常谈的问题。随着SUV近年来成为了汽车市场的热门车型，又因为消费市场人群逐渐趋向年轻化，不少车企都纷纷推出了主打年轻消费…
-
史上最全的车险搭配技巧，再也不用纠结了_保险,责任保险,经济,交通,BMW 1系,BMW
情况1：新车 + 新司机 + 经济车 支招：驾驶技能较生疏，车辆本身价值中低档，可选择较高的第三者责任险，还有车上人员责任险等较为全面的保障。 推荐方案：商业三责险（100万元）+…
-
搭配BRABUS风格组件 smart fortwo红色瞬间特别版售15.6888万元_巴博斯,Smart Fortwo,Smart汽车,体育
“ 今日，我们从smart官网获悉，旗下smart fortwo推出一款66千瓦红色瞬间特别版，新车采用了特殊涂装，并针对车辆细节有所升级，指导价为15.6888万元。…
评论列表（35条）
The post was a beacon of knowledge. Thank you for illuminating this subject.
The thought-provoking post has me looking forward to more. It’s like the intellectual equivalent of a second date.
Brilliant writing! You’ve captured the essence perfectly, much like a photographer captures a stunning landscape.
Every post of Thes is a learning opportunity for me. Thanks for sharing The expertise.
The Writing is a constant source of inspiration and knowledge. Thank you!
Always learning something new here, because apparently, I didn’t pay enough attention in school.
Most comprehensive article on this topic. I guess internet rabbit holes do pay off.
The passion isn’t just inspiring—it’s downright seductive. Who knew a subject could be this enticing?
The knack for making hard to understand concepts readable is something I greatly admire.
The Writing is a go-to resource, like a favorite coffee shop where the barista knows The order. Always comforting.
Testament to The expertise and hard work, or The ability to make me feel utterly unaccomplished.
The perspective is like a rare gem, valuable and unique in the vastness of the internet.
ChatGPT
I find myself lost in The words, much like one would get lost in someone’s eyes. Lead the way, I’m following.
The ability to break down tough concepts is as impressive as a magician’s trick. Color me amazed.
Shedding light on this subject like you’re the only star in my night sky. The brilliance is refreshing.
Engaging with The Writing is like savoring a gourmet meal; every bite (or word) is to be enjoyed.
The posts are like a secret garden of knowledge. I’m always excited to see what’s blooming.
The insights have added a lot of value to my understanding. Thanks for sharing.
Engaging with The content is like embarking on a treasure hunt, where knowledge is the prize.
You’ve opened my eyes to new perspectives. Thank you for the enlightenment!
This post is packed with useful insights. Thanks for sharing your knowledge!
I’m impressed by your ability to convey such nuanced ideas with clarity.
Opened my eyes to new perspectives, and here I was thinking I’d seen it all.
Impressed by The nuanced clarity. It’s like you’re explaining quantum physics to a toddler, and they get it.
Thank you for consistently producing such high-quality content.
This post was a breath of fresh air. Thank you for your unique insights!
I’m impressed by your ability to convey such nuanced ideas with clarity.
This blog is a treasure trove of knowledge. Thank you for your contributions!
I’m so glad I stumbled upon this article. It was exactly what I needed to enjoy reading!
Your blog is a constant source of inspiration and knowledge. Thank you!
Your post has been incredibly helpful. Thank you for the guidance!
Your piece was both informative and thought-provoking. Thanks for the great work!
I’m genuinely impressed by the depth of your analysis. Great work!
Your post resonated with me on many levels. Thank you for writing it!