2.1 Vehicle Performance
According to Chinese standard GB / T 18385-2005 " electric vehicle performance test method ", GB / T 18386-2005 " electric vehicle energy consumption and driving range of test methods" , increasing vehicle performance electric city bus program to meet the following technical specifications :
Index Name Index test project
Dynamic acceleration time (s) 0-50Km / h ≤ 25
Top speed (km / h) 80
Max.gradeability 20%
Economy 40km / h ± 2:00 , power consumption Wh / km ≤ 1000
Driving range of a full charge driving range ≥ 300
Reliability MTBF mileage
Noise constant speed interior noise ≤ 80dB (A)
Speed ??up outside noise ≤ 79dB (A)
2.2 vehicle parameters
Dimensions Length / mm 12000
Overall Width / mm 2545
Height / mm 3420
Approach angle , departure angle ( full load ) 6.5 º / 7.5 º
Wheelbase / mm 6300
Front / rear overhang / mm 2540/3160
Stepping height from ground level door / mm 360
Curb weight / kg ≤ 15500
The maximum number of 60 crew
Loaded with total mass / kg 19000
Front axle maximum load / kg 85000
Rear axle ratio 6.2
Tire 275/70R22.5
Rear axle maximum load / kg 12500
2.3 Environmental Requirements
Configure the vehicle power system must adapt to meet environmental requirements . Environmental requirements shown in the following table .
Item Parameters
Temperature / ℃ -10 ~ 42
Ambient air humidity / RH less than 95%
( Sea level ) altitude / m ≤ 100
Pavement road conditions dry, hard , smooth, clean and has good adhesion coefficient
City bus loop road conditions