Goose Q - Fellow Team
As the head goose flutters its wings, it drives the air flow to reduce wind resistance. If the geese are arranged in a V- shape, it will be very easy for the geese behind to fly. They don't have to rest many times. A low pressure zone is formed behind the head geese in the course of their flight, which can be used to reduce air resistance when the geese follow them. It is beneficial for the sustained flying ability of the whole group. The same principle is also found in sport running. Some experienced athletes in the middle and long distance races will not start running in the first place, but follow one behind in order to use aerodynamics and save power. In the field of logistics, we propose to use the same principle to improve efficiency. Vehicles moving together in a line can save 9%-25% of fuel.
Purpose
Improve driving safety
Save fuel consumption: save 9-25% fuel consumption
Improve road use efficiency
Explore the fully automated driving technology of the logistics industry
1. the principle of wake drag
When the two cars are driving in front and rear, when the trailing car enters the vacuum zone formed by the preceding car, the front and rear pressure difference of the trailing car is reduced. Correspondingly, the air resistance of the trailing car is reduced, which makes the trailing car can follow the preceding vehicle even if the throttle is not stepped on. In addition, when the trailing car enters the vacuum area of the front car, it also affects the formation of the turbulent flow field at the front of the car. In this way, two or even more cars are queued and their air resistance is much lower than that of a single car. The speed of the entire car queue will also increase compared to a single car.
2. reduce wind resistance
For heavy vehicles, such as freight vehicles and buses, wind resistance is the main resistance part because of the large surface and back end of the mainstream. Comparison of wind resistance and friction resistance at different wind speeds Under normal road conditions and weather conditions, if wind resistance is not considered at all, The overall resistance will be reduced by about 25%, and the corresponding fuel consumption will be reduced. In the team driving, the front car can not only reduce the wind resistance for the rear car. It is also possible to "drag" the car through the wake effect. This is the reason why the Yanqi team is driving fuel.
3. Fuel saving effect
Scania pointed out in the December 2015 report that after the team, the average fuel economy can reach 12%.