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Long-term Episode 269 · Question 3

Does the entire Xiaomi Pengcheng lineup come equipped with high-speed tire blowout stability control? Why can it stabilize the vehicle even under full load, at 160 km/h, with two tires blown out?

Official answer

Including the already unveiled Xiaomi Pengcheng N70 Max and N90 Max, the entire Xiaomi Pengcheng lineup comes standard with high-speed tire blowout stability control.

Achieving vehicle stability control under this condition relies on the coordinated work of multiple systems in the Xiaomi Pengcheng chassis:

  • Rapid blowout detection: The system continuously monitors tire status via tire pressure sensors and can detect a blowout in as fast as 150ms;
  • Stabilizing the vehicle: Upon receiving signals from the tire pressure sensors, the Vehicle Motion Control Center (VMC) begins coordinating various chassis subsystems within 30ms. On one hand, it links with the ESP to apply brakes to specific wheels to prevent the vehicle from swerving. On the other hand, it applies steering torque guidance to actively correct the front wheel angle and prevent deviation. Additionally, it quickly converts regenerative braking into hydraulic braking to ensure controllable and uniform braking force;
  • Reducing the impact of driver misoperation: It increases the steering damping of the electric power steering to try to "prevent" the driver from jerking the steering wheel, while limiting maximum torque output and torque change slope to avoid exacerbating danger due to accidental acceleration pedal input;
  • We also remind users that in the event of a high-speed tire blowout, please do not jerk the steering wheel or slam on the brake/accelerator pedals. Wait until you have safely pulled over, placed warning triangles, and then evacuate to the roadside promptly to prevent secondary accidents.

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