On April 10th, Xiaomi announced that the brake pedal of the SU7 is not physically connected to the caliper piston. What is the reason behind this design, and what are its advantages?
According to Xiaomi's official statement, the SU7 features the DPB+ESP10.0 fully decoupled braking system from Bosch, which offers the following four advantages:
Compared to traditional mechanical vacuum braking systems, the DPB fully decoupled braking system achieves faster pressure build-up, effectively shortening braking distance. This contributes to the outstanding performance of the Xiaomi SU7 Max, which can brake from 100 km/h to 0 in just 33.3 meters.
The design of DPB and ESP dual-pressure modules allows for redundancy, combined with energy recovery, enabling quadruple braking redundancy. This minimizes the risk of brake failure to the maximum extent, meeting the safety redundancy requirements for Level 4 autonomous driving and laying a foundation for future upgrades to assisted driving systems.
Under extreme conditions such as emergency braking, the DPB fully decoupled braking system eliminates pedal feedback fluctuations caused by ABS operation or fluctuations in master cylinder pressure. This provides drivers with greater braking confidence, ensuring safety.
The DPB fully decoupled braking system can effectively integrate motor energy recovery and mechanical hydraulic braking. Even when energy recovery is disabled during daily driving, the vehicle prioritizes energy recovery for deceleration when the driver presses the brake pedal, effectively improving the vehicle's range.
These advantages highlight the innovative features and safety enhancements brought by the DPB+ESP10.0 fully decoupled braking system in the Xiaomi SU7.
