Regarding the Xiaomi Auto Wheel-Coupled Road Simulation Laboratory, how advanced is its technology?
Recently, we have noticed that many friends have expressed interest in the technological advancement of the "Xiaomi Auto Wheel-Coupled Road Simulation Laboratory." We take this opportunity to provide a detailed introduction.
Regarding the four-post test rig of the "Xiaomi Auto Wheel-Coupled Road Simulation Laboratory," its principle involves using four 5-ton thrust shakers located beneath the vehicle to simulate the vertical forces experienced by tires during driving. This allows for precise simulation of various harsh driving conditions and rapid verification of the fatigue durability of the body and suspension systems. Additionally, this four-post test rig can simulate extreme environments ranging from -40°C to 60°C, effectively allowing the vehicle to experience temperature extremes comparable to those between Mohe and Turpan in a short period. This ensures that the vehicle maintains excellent safety and reliability even after long-term use in harsh conditions.
The four-post test rig equipped in the "Xiaomi Auto Wheel-Coupled Road Simulation Laboratory" is currently a common testing and validation equipment in the industry. The vibration frequency of this test rig can reach 100Hz, which is already an advanced specification in the current industry. For passenger car-related tests, the industry generally uses four-post test rigs with a thrust of 5 tons. This thrust is sufficient to simulate the fatigue vibrations and impacts endured by user vehicles; equipment with larger tonnage is typically used for commercial vehicle testing.
In fact, the "axle-coupled road simulation bench" mentioned in netizens' videos serves a different purpose than the four-post test rig in the "Xiaomi Auto Wheel-Coupled Road Simulation Laboratory." The purpose of the four-post test rig is to rapidly verify the fatigue durability of the body and suspension systems early in the product development phase, whereas axle-coupled road simulation bench testing comprehensively verifies the structural fatigue durability of the entire vehicle in the mid-to-late stages of product development.
Furthermore, we are also constructing a more advanced axle-coupled road simulation laboratory, which will be put into use shortly. This laboratory will support more test projects, thereby comprehensively enhancing the R&D and validation capabilities of the entire vehicle and its components, ultimately delivering higher-quality and more reliable products to users.