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Mythbuster #2: 说特斯拉怕堵车的

不知道这个myth是怎么流传开来的,大致意思是说严重交通拥堵后电动车可能开不动了,很吓人!

实际情况是,交通拥堵会一定程度上影响tesla range,但影响对比对油车的影响要小的多。stop and go的时候,内燃机车需要维持引擎运行,而且走走停停浪费很多动能,很多油车stop and go只能得到single digit MPG。

而特斯拉这样的车在堵住时电机不动,根本不消耗任何电能。车主都知道进特斯拉车后根本没有start button,走就开电机,停就不开。需要维持运转的就是音响和空调。当然长时间运转空调的确会耗能,中国国庆那种堵一天的状态,你得看看消耗程度,适度

关掉空调,但这对油车电车都有影响。有人估算如下

A/C has more of an impact - at 110F, A/C takes about 4kw while driving. Soan hour of running the A/C would take 4 kwh off your battery, or about 14miles。这是很极端的热天气了。下面人回Is your example intended to be a worst case scenario or is this your actualexperience? Not sure what your location is, but 110 degrees would be prettyextreme for a typical scenario. I''m in Houston in the upper 90''s with high

humidity as a point of reference. In a Leaf my A/C will max out at around 3kW in this environment but then settle to around 300-400 watts steady stateafter 20 minutes or so. Curious how your experience compares.

另外一个电车stop-n-go节能是因为有regenerative braking,就是把动能转换成电能

recoup起来,这个过程大概有55%效率 https://www.quora.com/Is-the-Tesla-Model-

3s-215-mile-range-reduced-by-heavy-traffic。学过热力学的知道这个过程要100%是不可能的,55%已经很不错了。本人亲测regen确实能有效提高效率。所以stop and go浪费的动能少的多,而这个regen油车整死学不来的。

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