马勒气候风洞进入电气化时代

斯图加特，2023年2月8日

• 电动车快充系统完成调试
• 位于斯图加特、拥有前沿技术水平的该处设施扩大服务范围
• 可在各种可能的气候条件下测试敏感的锂电池的快充效果

40多度的高温，烈日暴晒，鲜有凉风……这对对温度敏感的锂电池来说是严苛的条件。此时，如果电动车进行快速充电，电池很容易因过热而损坏。为实现这种真实条件下的测试，马勒为其位于斯图加特的风洞配备了一套直流快充系统。在模拟的各种气候条件下，包括极端高温，这套350千瓦的系统可在5分钟内充入100公里的续航电量。测得的数据为研究锂电池的反应和客舱舒适度提供参考，从而为车辆开发提供重要的依据。

“By expanding the range of services offered by our climatic wind tunnel in the direction of e-mobility, we will be able to support our customers even better in the development of their e-cars in the future,” said Jumana Al-Sibai, a member of the MAHLE Management Board and responsible for the business unit thermal management. “The battery is particularly demanding, and MAHLE can make a valuable contribution here with its distinctive system expertise in temperature management.”

Fast charging with up to 350 kilowatts of charging power places a large heat load on the Li-ion battery. Especially when the e-vehicle is charged in high heat and lots of solar load. The battery must always be kept within the optimum temperature window of 15 up to a maximum of 40 degrees Celsius. The vehicle’s thermal management system, i.e. the complex interaction between the cooling and air conditioning systems, ensures that the sensitive battery does not overheat and ultimately takes damage. At the same time, it must not get too hot in the driver’s cabin.

The facility in Stuttgart was built in 1937 as the world’s first wind tunnel for the automotive industry. In 2000, it was completely modernized as part of a new construction. MAHLE has continuously developed the measurement section as a pioneer in this field to this day. The facility enables realistic, precise and repeatable measurement and test conditions—so it literally brings the road into the laboratory.