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发表于 2012-10-29 12:12
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来自: 美国
张老五 发表于 2012-10-29 10:45 
那汽油车要不要交这笔Downpay?要的话是多少钱?
我自己的车是1.4的的,发动机功率是55KW,最大时速么, ...
lease汽油128系,3.0L发动机,downpay大概也是这么多。
你55KW的发动机,都能开到160迈。那根据你这么多年积累的设计经验,根据风阻+摩擦损耗和速度的关系。稍微评估一下100迈时候发动机功率是在30KW以上还是30KW以下,不是个难事吧。
怎么测的?EPA标准。我还真找到了。您自己看
EPA testing procedure: 2008 and beyond
2008 Monroney sticker highlights fuel economy.
As a means of reflecting real world fuel economy more accurately, the EPA adds three new Supplemental Federal Test Procedure (SFTP) tests [42] that will combine with the current city and highway cycles to determine fuel economy of new vehicles, beginning with the 2008 model year.[43]
SFTP US06 is a high speed/quick acceleration loop that lasts 10 minutes, covers 8 miles (13 km), averages 48 mph (77 km/h) and reaches a top speed of 80 mph (130 km/h). Four stops are included, and brisk acceleration maximizes at a rate of 8.46 mph (13.62 km/h) per second. The engine begins warm and air conditioning is not used. Ambient temperature varies between 68 °F (20 °C) to 86 °F (30 °C).
SFTO SC03 is the air conditioning test, which raises ambient temperatures to 95 °F (35 °C), and puts the vehicle's climate control system to use. Lasting 9.9 minutes, the 3.6-mile (5.8 km) loop averages 22 mph (35 km/h) and maximizes at a rate of 54.8 mph (88.2 km/h). Five stops are included, idling occurs 19 percent of the time and acceleration of 5.1 mph/sec is achieved. Engine temperatures begin warm.
Lastly, a cold temperature cycle uses the same parameters as the current city loop, except that ambient temperature is set to 20 °F (−7 °C).
EPA tests for fuel economy do not include electrical load tests beyond climate control, which may account for some of the discrepancy between EPA and real world fuel-efficiency. A 200 W electrical load can produce a 0.4 km/L (0.94 mpg) reduction in efficiency on the FTP 75 cycle test.[44]
最后,咱们换个角度思考问题,有了车了,电还这么便宜,为啥还要在城里住鸽子笼一样的楼房呢?搬到农村去买块地,盖个楼,享受大自然的山山水水多好啊。 |
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