2023-02-20
一辆48V电动汽车(che)行驶60公里需要多少容量的锂电池？用数据告诉你
要跑60公里，48V电(dian)动(dong)汽(qi)(qi)车需要为电(dian)动(dong)汽(qi)(qi)车配备锂电(dian)池。有必要了解电(dian)动(dong)汽(qi)(qi)车电(dian)机的额定功(gong)率。让我(wo)们(men)以300W功率电(dian)机为(wei)例(li)计算：
例如，电动汽车的工作电压为48V，电机为(wei)300W，电动汽车速度计(ji)算(suan)为(wei)25km/h（国(guo)家标准(zhun)要求）；
经计算(suan)：工作电流=电机功(gong)率/标称电压=300W/48V=6.25A，即电动(dong)汽车(che)的平均工作电流约为6.25A；
行(xing)驶时(shi)间(jian)=预期里程/行驶速度(du)=60KM/25KM/h=2.4小时(shi)，即(ji)电动汽车达(da)到60公里需要2.4小时以上(shang)；
电池(chi)容量=工作电流*工作(zuo)时间=6.25A*2.4h=15Ah，即运行60公(gong)里，至少需要48V15Ah的电动汽车锂电池；
也(ye)就(jiu)是说(shuo)，配备(bei)300W电机的48V电动汽车60公里(li)至少(shao)需要48V15Ah锂电池。
当然，电(dian)动汽(qi)车电(dian)机功率也有400W、500W、600W等(deng)，可以通过将实际电机功(gong)率与上(shang)述计算方法(fa)相结合(he)来计算得出理论里(li)程；
此外，以上是根据(ju)理(li)想条件下的(de)理(li)论(lun)数(shu)(shu)据(ju)计算(suan)的(de)。在实际驾驶(shi)过(guo)程中很难(nan)实现一致性。毕(bi)竟，每个(ge)骑(qi)手的(de)体重不(bu)同(tong)，骑(qi)行(xing)习惯(guan)不(bu)同(tong)，行(xing)驶(shi)道(dao)路不(bu)同(tong)，不(bu)同(tong)地方的(de)气候环(huan)境也不(bu)同(tong)。因此，上述理(li)论(lun)行(xing)驶(shi)距离只能用(yong)作参考数(shu)(shu)据(ju)。
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