In the low temperature environment, the battery pack activity of pure electric vehicles will be reduced and weakened, which will have a certain negative impact on the mileage. At present, most of Shanghai's bus industry is in service with new energy vehicles. In order to ensure normal operation and respond to the cold wave, in the process of vehicle maintenance and subsequent operation, the city's public transport industry will start the "cold and anti-freeze" mode.
On the morning of December 26, the News News reporter saw at the maintenance center of the bus five company that many vehicles on the line were returning to the factory to wait for winter maintenance during the weekend's low operating period. In order to cope with the cold wave and ensure the smooth operation of each line in the morning peak of tomorrow's weekday, the staff is inspecting the activity of the vehicle battery, brake performance and other key locations.
The staff said: "The gas cylinder, the inspection of water release and deflation, the gas carries a lot of moisture, and once the temperature is low, it will cause it to freeze, which will have a little impact on the brake system, wheel pump and other related components." ”
In addition to exhausting the water vapor in the equipment of the new energy vehicle, it prevents liquid icing from affecting the performance of the vehicle. All fuel vehicles have also been replaced with antifreeze labeled minus thirty-five degrees. In response to the problem of weakening the vitality of chemicals in the battery in severe cold weather, the operator also required each team to implement a special start-up and charging process.
Shao Dongkun, deputy secretary of the party branch of Jiushi Bus No. 5 Company and a fleet, said: "After the night operation is over, after the driver enters the scene, our relevant aircraft maintenance personnel will carry out a thermal charge before the vehicle is cooled, which can improve the efficiency of charging and ensure the operation of tomorrow's line." ”
In addition, after the temperature drops to a freezing point, each operating vehicle will heat up the car in advance at the beginning and end of the station, turn on the heating, and keep the temperature in the carriage suitable. Emergency repair personnel will also be on standby 24 hours a day, always paying attention to the operating status of each vehicle to ensure smooth and orderly operation.
(Look at the news Knows reporter: Li Entou Editor: Xia Dingwei)