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What’re the relationships between weight, speed, motor/controller power and batt

Time:2016-01-17 Viewed:1059 Times


Vehicle Type and  Total Weight

Electric Bike,

Total  Weight:: 110KG

Net weight : 40 KG  

One  person: 70KG

Electric  Motorcycle,

Total  Weight:: 180KG

Net weight : 80 KG  

One  person & goods: 100KG

Speed  (km/h)

15     20    25     30

25      30    35     40     45

Rolling  Resistance (N)

10.8   10.8   10.8    10.8

17.6    17.6    17.6   17.6   17.6

Air  Resistance (N)

4.9    8.8   13.7    19.6

14.4    20.6    26.4   36.3   45.1

Total  Resistance (N)

15.7   19.6    24.5   30.4

32.3    38.2   45.1   53.9    63.7

Motor  Shaft’s Power (W)

66    109    174    258

225    319    438    599    784

Power  Consumption of  Motor (W)

79    130    207    307

265    375    515    705    922

Current  of Battery (A)

2.2    3.6    5.8     8.5

5.5    7.8    10.7    15.6   19.2

Calculated  Motor Efficiency

84%

85%

Motor  Style

25km/h  180w

35~40km/h  500~600w

45km/h  800w

Battery  Style

36v  10/12 Ah

48v  20~28 Ah


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