With the fourth bus slowly left the bus company is located in Huzhou City, South Gate of the charging stations in the future people will be able to sit in Huzhou, Zhejiang Province smooth ride, lower energy consumption of electric buses, which also marks one of the first pure electric vehicle fast charge put into trial operation. Zheliang by the micro-macro dynamic Hengtong bus companies and the rapid production of rechargeable electric bus, 10 minutes to complete the charging process, a charge driving range to 30 to 50 km, and the traditional electric vehicle charging you will need 4 to 6 hours.
“The battery is currently restricting the development of the fundamental factors of electric buses.” Executive director Tang Heng Tong Ping Bus Company told reporters that the current market, they use a pure electric vehicle battery lithium iron phosphate batteries, the technology is relatively immature. According to estimates, the use of lithium iron phosphate batteries to carry 200-350kWh energy calculation, the battery weighs about 3 tons, the night charge to be 4 to 6 hours, a single life in the 150-250 km distance, only the basic operation to meet the bus lines, After a 1000 battery charge and discharge cycles, the capacity decay to 80% less mileage fall, the actual battery life of only 2 to 3 years. Not only difficult to meet the needs of urban public transport is running, can not achieve large-scale commercial operation. At the same time, is not conducive to charging network infrastructure and layout, but not conducive to public transportation network drive private cars charging energy supply network in the long term layout and construction.
“The use of a new fast-charge lithium battery Hengtong electric passenger cars, 2,000 times in the charge and discharge cycles, the capacity fading can still be maintained at about 98% charge and discharge cycles 20,000 times, to 80% capacity fading, the actual life of up to 6 to 8 years. “Micro-Macro Dynamics chairman Wu Yang said.
According to Deng Ping, Hengtong pure electric passenger car fast with a new long-life rechargeable lithium battery, car battery electric passenger volume than the traditional less than half the battery weight, so that vehicles over 1.5 tons of weight, improved capacity and power, reducing the purchase price. Meanwhile, the Hengtong pure electric vehicle fast charging during braking, the motor generator can be automatically translated into the work of the state, to achieve recovery of braking energy during deceleration, have a good retarding effect, but also to the life of brake system has been significantly improved. “In the future, simply run the bus company starting point, the terminal set fast charging pile, or each time to the starting point, the terminal just as fuel to meet the bus one-way or round trip alignment of power trip travel needs.” Deng Ping said, equipped with a fast charge battery electric buses this year will be in Chongqing, Guangzhou into demonstration runs.
