能量回收增强功能

Search documents
小米回应刹车起火
21世纪经济报道· 2025-06-29 14:43
Core Viewpoint - The article discusses the overheating issue of the Xiaomi YU7's brake system during a track test, highlighting the potential risks and the company's response to the incident [1][2]. Group 1: Incident Details - During a track test at Tianjin V1 Circuit, the brake pads of the Xiaomi YU7 caught fire, with brake disc temperatures exceeding 600 degrees Celsius [1]. - The driver reported that the braking performance did not significantly decline after the brake pads overheated, although the right front wheel experienced severe fire [1]. Group 2: Company Response - Xiaomi stated that the incident occurred after the vehicle completed one warm-up lap and one flying lap without a cooling lap, leading to high temperatures that caused the organic materials in the brake pads to ignite [1]. - The company emphasized that the overall braking system did not experience any failure and remained functional [1]. Group 3: Technical Explanation - The article explains that during high-speed driving on a track, the braking system endures much higher loads than in regular driving, causing rapid temperature increases in the brake discs [2]. - Xiaomi YU7 Max uses low-metal brake pads made from metal fibers, abrasives, and resins, which can produce flammable gases at temperatures above 600 degrees Celsius, leading to brief flames under sufficient oxygen [2]. Group 4: Safety Recommendations - Xiaomi advises users to be cautious with the YU7, which is positioned as a luxury high-performance SUV, and to avoid unprofessional track attempts without proper upgrades and knowledge [2]. - The company recommends using the "energy recovery enhancement" feature in the master mode to reduce the load on the braking system and prevent extreme temperature situations [2].