Battery performance declines due to a drop in temperature… Reduced brake use reduces battery regeneration energy
Winter electric vehicle mileage decreased by 33.4% compared to usual… Rest area charging time takes longer than usual
[금융경제신문=장인성 기자] When driving an electric vehicle during the Lunar New Year holidays, research results show that it is possible to operate without stopping and reduce accidents when a rest area charging plan is established better than usual.
On the 12th, the Hyundai Maritime Transportation and Climate Environment Research Institute announced the analysis result that, as a result of a study on safety measures for long-distance driving during the Lunar New Year holidays, when driving long distances during the Lunar New Year with electric vehicles, the mileage, which is reduced by 20-30%, should be considered.
When driving on the highway in winter, the fuel economy of the general internal combustion locomotive improved by 33%, whereas the electric vehicle fuel consumption (fuel economy) decreased by 24%, resulting in a 33.4% decrease in mileage than usual. For this reason, it was investigated that during the Lunar New Year holiday period, the waiting time for charging at rest areas on the highway takes longer than usual, so it is necessary to make a good plan for charging on the way home and return.
This study reflected a survey of 300 people who had driving experiences of electric vehicles and internal combustion locomotives in urban areas and highways to measure fuel economy and driving for more than 4 hours during the Lunar New Year holidays.
During the Lunar New Year’s holiday homecoming and gwigyeong road, you have to drive a long distance, which is about 200 to 400 km on the highway, compared to usual, so you need to be prepared to move for up to 6 hours. In addition, electric car users should also pay attention to the shorter mileage.
Electric vehicles have poor battery performance in winter, and unlike general internal combustion locomotives, fuel economy is good in urban driving, but fuel efficiency is rather low in highway driving.
According to an on-site test conducted by the Hyundai Marine Transportation and Climate Environment Research Institute, the fuel economy of internal combustion locomotives improved by 33% when driving on highways compared to driving in urban areas, but electric vehicles decreased by 24% when driving on highways.
In addition, in a survey conducted by the Institute of 150 electric vehicle drivers, when the temperature fell below freezing in winter, the mileage decreased by 33.4% compared to usual. During the Lunar New Year holiday period, 21.4% waited for 20 minutes or more for charging at highway rest areas. It was investigated that the point increased.
In Norway, one of the countries with the fastest EV penetration rate in the world, a total of 20 EVs were tested and tested to see how much the deterioration of battery performance in winter (-2 degrees Celsius) affects the mileage. Reported a decrease.
The main reasons for the high battery consumption during long-distance driving in winter with electric vehicles are that the battery performance is deteriorated due to a decrease in temperature and that the regeneration energy of the battery is hardly generated because the brakes are not used a lot when driving on a highway.
Dr. Lee Soo-il, the Hyundai Marine Transportation and Climate Environment Research Institute, said, “People who plan to drive long distances on an electric vehicle during the Lunar New Year holidays should plan the charging location in advance and drive safely, considering that the driving performance will decrease by 20-30% compared to usual.”
Reporter Jang In-seong [email protected]
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