轮距比

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小米汽车副总裁回应“轮轴比”概念讨论,一汽丰田高管:深表歉意
Qi Lu Wan Bao· 2025-08-15 02:54
Core Viewpoint - The recent controversy surrounding Xiaomi's YU7 model's "wheel axle ratio" concept has sparked debate within the automotive industry, with differing opinions on its validity and implications for marketing strategies [1][5][8]. Group 1: Controversy and Responses - Zhao Dong, a senior executive at FAW Toyota, questioned the existence of the "wheel axle ratio" and "wheel height ratio" concepts, claiming they were invented by Xiaomi [1]. - Automotive blogger Chen Zheran argued that the concept is not new and has been referenced in automotive literature for over 20 years, suggesting it is a conventional parameter for vehicle proportions [5]. - Zhao later clarified that his intention was to foster discussion and apologized if his comments negatively impacted Xiaomi, indicating a learning attitude towards the new marketing concept [8]. Group 2: Technical Definitions and Calculations - Different interpretations of the "wheel axle ratio" led to varying calculations, with one method yielding a ratio of 3 and another yielding 4, depending on the definitions used [8]. - The standard tire size for the Xiaomi YU7 is 245/55R19, leading to a calculated tire diameter of approximately 740mm, with an axle length of 3000mm, resulting in a ratio of 4 when calculated using tire diameter [8]. - Liu Hao pointed out that the automotive theory includes a "wheelbase ratio," which relates the wheel diameter to various vehicle dimensions, suggesting that Xiaomi's "wheel axle ratio" is essentially a visual representation of vehicle length [9].