How many kilometers can a new energy bus run?

The endurance of new energy buses varies according to different power sources. Generally, the battery life of pure electric buses is short, about 100-200 kilometers, while the battery life of hybrid buses and fuel cell buses is long, which can run 200-300 kilometers. Some new energy buses can reach 500-600 kilometers under test conditions. However, in actual use, due to different vehicle working conditions, the test mileage can not be reached. Let's see how many kilometers the new energy bus can run. 1. How many kilometers can a new energy bus run?

Now many buses are also using new energy buses. For buses, endurance is more important. What is the endurance of new energy buses?

There are many kinds of new energy buses, such as pure electric buses, hybrid buses and fuel cell buses. Different types of endurance are different. Generally, pure electric buses are only driven by electricity, and their battery life is short, and they can run for about one or two hundred kilometers at a time. Hybrid buses and fuel cell buses have a longer cruising range, but not too long, about two or three hundred kilometers. Some fuel cell buses can reach the cruising range of 500-600 kilometers under the test conditions, but the actual use can not achieve this effect, because the load, road conditions, temperature, whether the air conditioner is turned on or not, and the driving speed will also affect the cruising range.

Generally speaking, limited by technology, the endurance of new energy buses is still relatively poor, and because of the long charging time and lack of supporting infrastructure such as charging piles, they are mainly used in cities, and most of them can't run long distances.

Second, what factors are related to the endurance of pure electric buses?

The endurance of a pure electric bus is worse than that of the other two new energy buses, but if it is only used in cities, the basic endurance is sufficient. However, during driving, sometimes the standard cruising range may not be reached for various reasons. The main factors that affect the endurance of pure electric buses are:

1, vehicle use conditions

The cruising range obtained by testing is generally the result obtained by testing under standard working conditions. From the point of view of the actual use of the vehicle, the driver's driving habits, the driving route of the electric bus, the change of environmental temperature, the load capacity, etc. Will have a certain impact on the cruising range.

2. Vehicle design

From the aspect of vehicle design, there are three main factors that affect the cruising range of pure electric buses, namely performance design, power system and vehicle system optimization:

(1) performance design

When a pure electric vehicle is running, the greater the resistance, the more battery power it consumes to overcome the resistance, and the worse its endurance. In other words, reducing drag can increase its endurance. To reduce drag, first, we should optimize the shape design of the whole vehicle. A reasonable body shape can reduce the windward area, reduce the air resistance coefficient and further reduce the air resistance of the whole vehicle. The second is to improve the manufacturing accuracy of vehicles. The higher the surface quality of the car body, the smoother the car body and the smaller the drag coefficient. The third is to reduce the quality of the whole vehicle and control the overall quality.

(2) Power system

The pure electric bus drives the vehicle by driving the motor to convert the electric energy in the power battery into mechanical energy, so the cruising range is directly related to the three electrical systems (battery, electric drive and electronic control) of the electric vehicle: the capacity of the power battery directly determines the cruising range, and the stability of the battery will also affect the cruising range; After the battery capacity is determined, under the same voltage, the output energy is determined by the efficiency of the drive system; Vehicle control system mainly refers to coordinating the relationship between battery, drive system and chassis braking energy recovery. New energy buses often need frequent acceleration and deceleration, so energy recovery can be dynamically adjusted according to battery status and braking requirements to improve endurance.

(3) system optimization

Because the energy consumed by the battery under different working conditions is completely different, special software is needed in the battery management system and VCU to predict the driving range. In the optimization stage, it is mainly to calibrate the different working modes of the vehicle and coordinate the power of the vehicle and the economy of the cruising range.