电动车64伏12安和48伏20安的那个跑的远

2025-03-17 22:14:50
推荐回答(4个)
回答1:

根据容量换算64X12=768瓦小时,48X20=960瓦小时。虽明显可见48伏20安的电池容量大,但是由于电动车是大电流工作,而目前电动车的连接线、电机线、控制器电路焊接线的线芯都普遍相对偏小,就拿48伏电瓶来说:在高速工作在大电流下,蓄电池、电动机以及控制器和整套供电系统发热都比较严重,相当于串接了一个功率不小的电热器(估算总损耗不少于300瓦)。如:48伏电压要输出500瓦功率时,电流:500÷48=10.42(安)64伏电压要输出500瓦功率时,电流:500÷64=7.81(安)根据电流热效应定律计算,48伏时的电流虽增加了2.6安,又在截面积偏小而相等的情况下的损耗呈指数状态递增来计算(计算式省略),通过计算可知64伏的线耗仅仅是48伏线损的1/3以下。故,电动车64伏12安和48伏20安的车跑的几乎一样远。(注:这也是当今为什么向高电压方向节能转型的道理)

回答2:

64伏12安 的瞬时功率相对较大,48伏20安的后备功率相对较大。如果在相同的路况和功率输出情况下,48伏20安的跑的更远。

回答3:

跑的远不远主要是看电池的容量,不是去看电压。100V10A也没24V20A的跑的远啊。

回答4:

两者比较,同等条件下肯定是48伏20安的跑的远

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