In 2016, global electric vehicle sales increased by 41%, and this proportion will continue to increase in the coming decades. Although it seems far away, by 2040, the proportion of electric vehicles will reach 35%. For the owner, the electric vehicle is not only more cost-effective, but also easy to use, and can better protect the environment and reduce emissions.
However, there is a potential danger in the use of electric vehicles. Because the running sound of the motor is much smaller than that of the traditional internal combustion engine, there is almost no sound when driving, and the threat to pedestrians and bicycles is far. Higher than ordinary gasoline engine cars. According to a study from the National Highway Traffic Safety Administration, the probability of a collision between a hybrid and an electric vehicle and a pedestrian is 37% higher than that of a regular car, and if it is a bicycle, the probability is as high as 57%.
At present, many governments have issued regulations requiring electric vehicles to emit specific warnings when they reach a certain speed threshold. In order to meet the requirements, car manufacturers need to alert the surrounding pedestrians or bicycles by digitally simulating the sound of the engine or by issuing a warning tone through the car speaker.
In the next era of electric motors, car manufacturers can solve the safety problem for pedestrians. In fact, they only need to consider the sound. The use of intelligent features and vehicle networking technologies, including active avoidance and automatic driving assistance, are the primary means of reducing the probability of electric vehicle accidents.
We have seen that institutions such as Ustwo have begun research in this area. With the increasing number of electric vehicles, how to make their voices become a unique landscape in the city, and can also alert pedestrians to reduce accidents. The Institute is concerned.
Therefore, some researchers hope to develop a way of mingling with the surrounding environment and letting pedestrians perceive the electric car, letting the pedestrian know that he is close to the vehicle and avoiding it in time.
This sound should contain three key features: improving pedestrian safety, reducing noise pollution, and expressing brand and product characteristics. The latest environmentally-aware audio system can be based on visual and sensory systems, which is a good way. The system will automatically adjust the emitted sounds with reference to the different types of speed, direction, driving conditions, number of pedestrians and environment around the car.
This kind of sound should be noticeable and can attract the attention of pedestrians. At the same time, it can change the frequency or tone according to different danger levels, so that pedestrians can understand their situation.
In addition, in the future, this technology can further integrate the deeper visual technology in more complex scenes by combining with the sensors of other devices, further reducing the risk factor between electric vehicles and pedestrians. When we drive on the roads of the city, we can achieve the desired purpose through the cooperation of camera sensors and sound sensors.
As technology advances, cities and environments continue to evolve, and more solutions are likely to emerge in the future. What we have to be clear is that the sound of electric vehicles not only reminds pedestrians, but also causes environmental pollution and affects the quality of life.
Nickel Alkaline Battery,Solar Energy Battery,48V Nife Battery 200Ah ,Ni-Fe Battery 100~200Ah
Henan Xintaihang Power Source Co.,Ltd , https://www.taihangbattery.com