亿万年前远古时期,谁在地球上踩下第一个“脚印”?

2020-08-04 01:10:57

铜陵开咨询费发票_電┽微 136━6035━5935  何笙_诚、信、合、作,100%保、真、售、后、保、障、长、期、有、效。未来5年,我们将使中国现有标准下7000多万贫困人口全部脱贫。

在当下,很多小伙伴购车时,对于发动机的数据越来越看重,当然很多厂商也是把握了消费者的这种心理状态,所以很多小排量的发动机数据越做越漂亮,之前可能需要3.0L以上排量才能完成的动力数据,现在一台1.5T发动机就能搞定,但是我们却始终坚信一个观点,发动机在数据做大的同时,一定伴随着其他方面的一些损失,因此,我们在做一些选车购车的建议时,一般不会将发动机的动力数据作为衡量发动机的第一要素,为什么有这样的态度呢?容我们细细道来!

其实现在的发动机动力数据大增,主要的技术手段就是涡轮增压和高压喷射,对于很多涡轮增压发动机来说,本质上提升动力数据是比较容易的,或者说在马力机上跑出数据是比较容易的,但是能在提高动力数据的同时,还能兼顾到动力输出的线性,发动机的可靠性,油耗的经济性,就不是一件简单的事儿了,所以对于很多这种小排量发动机而言,可能动力数据、输出线性、可靠性、油耗4个层面能够兼顾其中3个就已经相当不错了。

比如本田的1.5T发动机,这么小的排量可以迸发超过190匹的最大马力,整体输出也很线性,而且油耗表现也很不错,但是恰恰问题就出在了以前可能是本田最大的优势,发动机的可靠性上,本田的1.5T发动机接连出现机油增多、高速失速等共性问题投诉,让本田的发动机技术口碑蒙上一层阴影!

而在我们经历了上百款车型的试驾之后,我们发现发动机的动力数据有时候说明不了什么问题,之前我们试驾过宝马3系的1.5T车型,按理说1.5T最大马力136匹的动力带动一台中级车产品,本质上是动力欠缺的,不过事实上,1.5T的宝马配上采埃孚的8AT变速箱,动力感受肯定谈不上强劲,勉强算是能用,但是宝马的发动机调校让这款发动机的动力输出表现的十分线性,油门随踩随有,开起来还是很有动力感的,这不可避免的带来了高转速和高油耗,但是相比于它的数据,这都不是问题。

同样,我们也试驾过另一款国产1.5T的SUV车型,哈弗H6 Coupe,这台车搭载的1.5T发动机,最大马力169匹,虽然还没有达到本田低功率1.5T发动机的水平,但是也算是比较好的动力数据,但是这台车搭载了一台7速双离合变速箱,这两者的组合给我们的感觉很奇怪,明明动力数据很强,但是开起来没劲,起步转速拉得很高,油门往下踩,转速起来了,但是车辆的速度并没有给出相匹配的回应,所以驾驶起来的动力感,并没有它的账面数据看上去那么强劲,这就是问题的关键。

而同样是国产发动机,长安睿骋CC上的1.5T发动机虽然最大马力只有156匹,但是它和爱信6AT的组合,让这款车的动力输出感觉就是很舒服,动力随踩随有,没有拖沓感,也没有涡轮迟滞!

所以其实从本质上来讲,在现在的汽车领域,为什么有些厂商将发动机的数据做得不那么激进,事实上也是为了兼顾各个方面的表现,而且发动机的动力输出和变速箱的表现也密不可分,因此,在我们看来,购车选车的时候,同等价位、同等排量的情况下,不一定是动力数据越高越好,大家还是要综合各方面的表现,才能得出比较真实的体验。

英国埃克塞特大学13日发布的一项新研究说,如果体重超重,即便没有引发其他健康问题,也可能会导致抑郁。

  电网工作人员利用智能定位系统对高危用户线路设备开展特巡  昨天,记者获悉,在最近发布的《2018中国城市营商环境质量报告》中,宁波在全国城市中排名第8位,位于杭州之后,重庆之前,得分,排名比2017年上升了10位。

共建“一带一路”之所以得到广泛支持,反映了各国特别是广大发展中国家对促和平、谋发展的愿望。

参考文档

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