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小米YU7赛道测试刹车片起火 公司回应
财联社· 2025-06-29 11:21
Core Viewpoint - The incident of the brake pads catching fire during the track test of the Xiaomi YU7 Max is attributed to extreme conditions without proper cooling, but the braking system remains functional and safe [1][2][3]. Group 1: Incident Explanation - During the track test at Tianjin V1 Circuit, the Xiaomi YU7 Max experienced a fire in the brake pads after one warm-up lap and one flying lap without a cooling lap, leading to high temperatures that caused organic materials in the brake pads to ignite [1][2]. - The vehicle did not utilize the "energy recovery enhancement" feature in the master mode, which could have reduced the load on the mechanical braking system and mitigated extreme temperature conditions [2]. Group 2: Technical Details - The Xiaomi YU7 Max uses low-metal brake pads made from metal fibers, abrasives, and organic materials, which can produce flammable gases when exposed to high temperatures (generally above 300°C) [3]. - Under extreme conditions (brake disc temperatures exceeding 600°C), these gases can lead to brief flame phenomena, which is considered a normal physical occurrence and does not compromise braking performance [3]. Group 3: Safety Recommendations - The company emphasizes the importance of driving safety and advises against untrained attempts at track driving with factory vehicles that have not undergone professional upgrades [4]. - For those considering professional track driving, it is crucial to understand the vehicle's performance limits and to upgrade components such as tires and braking systems, while also utilizing the energy recovery enhancement feature to avoid safety hazards in extreme conditions [4].