Increasing Car Weight by 20% Leads to Double Damage to Roads, Nio CEO Says

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Based on the "fourth power law" in road engineering, the structural damage vehicles cause to roads is proportional to the fourth power of axle load, with 1.2 to the fourth being…

(Yicai) Nov. 6 -- Vehicle weight issues directly affect Nio's technological approach, because even a 1.2-time increase to the standard will cause more than double the damage to road pavements, according to the chief executive officer of electric vehicle startup Nio.

Based on the "fourth power law" in road engineering, the structural damage vehicles cause to roads is proportional to the fourth power of axle load, with 1.2 to the fourth being about 2.07, Li Bin, who is also founder and chairman of Nio, said at an auto forum during the World Internet Conference yesterday.

In addition, Li and Li Shufu, chairman of Geely Holding Group, held their first public dialogue at the forum after teaming up on battery charging and swapping on Sept. 28. Their conversation focused on the lifespan of power batteries and the route of energy replenishment, with Li Bin raising the issue of vehicle weight.

On…

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