Electric vehicles have become the development direction of the future car with comfortable and environmentally friendly features. However, due to the concerns about cruising range and charging convenience, pure electric vehicles are still asking for less. To resolve this “mileage anxiety,†scientists at North Carolina State University in the United States have developed a new technology with big data that can accurately predict how far an electric car can travel before charging.
Allegedly, with this technology, the driver only needs to input the destination into the system, and the program can make accurate predictions of the remaining mileage based on various variables that may occur during driving.
The paper's first author, Dr. Huppert Rashim-Ingichi, a professor at North Carolina State University in the United States, said: “Although electric vehicles have their own mileage estimation software, their accuracy is not flattered.†He said. The prior art often estimates how long it can take based on the average energy consumption of the car from the past 5 minutes to 15 minutes, and the estimation model is too simple, so it can only be used as a reference. The uniqueness of the new technology is that it can use the Internet to collect various data such as weather, road conditions, types of roads (highway or urban roads), road grades, etc., and collate and analyze them through big data technology. Higher accuracy estimates. At present, this technology has been able to reduce the prediction error to a few miles. In the most recent tests, the accuracy even reached 95%.
The researchers said that the technology needs to obtain all relevant data between the starting point and the destination, and determine the importance of this information through big data technology, and then use a unique algorithm to calculate how long the vehicle can travel before charging. distance. In addition, the algorithm also takes into account the history of the vehicle's travel, real-time data, and the performance of the vehicle and battery.
Zhou Moyuan, a co-author and professor of electrical and computer engineering at North Carolina State University in the United States, said: “For electric cars, many people have 'mileage anxiety' and they worry that the car will suddenly run out of power halfway. Hopefully the new technology will give people more confidence in driving electric cars."
Related papers were published at the 40th IEEE Industrial Electronics Annual Conference held in Dallas, USA. (Wang Xiaolong)
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