Stormwater Technology reported on June 28 that some media tested the Xiaomi Yu7 on the track and saw a fire on the brake pad, which attracted widespread attention.
Xiaomi Auto’s official Weibo account quickly explained the issue. The statement notes that the Xiaomi Yu7 Max in the video stopped directly in extreme conditions without a radiator cooling cycle, causing the brake pads to cause flames due to high temperatures after a brief bead and flight ring in the Tianjin V1 racing stadium. Xiaomi officially emphasized that the brake system itself has no fault problems and all functions are operating normally.
It is particularly noteworthy that the test tool did not use the “Energy Recovery Enhancement” function in the Xiaomi YU7 Max Master mode at that time. Xiaomi stressed that the feature is designed to enhance the energy recovery intensity under orbital conditions, thereby reducing the burden on the mechanical braking system. Even with ABS locked, this feature can still provide braking energy recovery up to 0.2G, effectively reducing extreme conditions where brake system temperatures exceed 600°C.
Xiaomi official notes: In rail driving environments, vehicles usually need to brake at ultra-high speeds, which puts the burden on the brake system much higher than that of daily driving. Under such extreme operating conditions, the temperature of the brake disc will rise rapidly, and if effective heat dissipation measures are not taken, it may lead to fire in the material. This is similar to any high-performance vehicle on the track, and it is not a problem unique to Xiaomi.
In addition, as a medium and large SUV, Xiaomi Yu7 has a higher weight, and the SUV with relatively small high power performance brings a higher track tail. These factors all mean that during intense braking, the brake system generates more heat. Therefore, effective cooling is a crucial and basic common sense in track driving. Good braking performance is closely related to cooling capacity, and no vehicle can ignore this when challenging track limits.
The Xiaomi Yu7 Max uses low metal brake pads, which include metal fibers, abrasives, resins and other organics. Under high temperature environments (usually above 300°C), resins and other organic matter will undergo a cracking reaction of polymer branches, producing moisture, carbon monoxide, carbon dioxide, carbon dioxide, alkyl, aromatic gases, aromatic gases, etc. Among them, some combustion-resistant gases may create brief blanks at high temperatures, usually at high temperatures (usually 4000 rake disease oxen) and > 6000 cen). Xiaomi officially pointed out that this is a normal physical phenomenon and will not lead to failure of braking performance.
Xiaomi Yu7 is positioned as an urban luxury high-performance SUV. Xiaomi officials also strongly recommend that you should not try the track easily without professional upgrades and preparations. We must learn driving skills step by step to fully understand the boundaries of product performance and master the boundaries of professional driving knowledge. For ordinary consumers, safe driving is always the top priority.
If you really want to drive professionally, you need to upgrade the vehicle’s tires, brake system and heat dissipation key components, and use the main mode and turn on the energy recovery enhancement to avoid safety hazards in extreme operating conditions. This reflects Xiaomi’s strict attitude towards safety.
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