4results about How to "Achieve stability control" patented technology

The utility model relates to the technical field of fluid control equipment, in particular to a pressure control flow stabilizing valve which comprises a valve body and a middle transmission part, an adjusting cavity is arranged in the valve body, two elastic pipelines with variable diameter characteristics are arranged in the adjusting cavity, and the middle transmission part is arranged in the adjusting cavity. The valve body is provided with two elastic pipelines, the two elastic pipelines and the arc-shaped inner wall of the adjusting cavity form a fixed contact interface in the axial direction, the two elastic pipelines are a liquid conveying hose and an auxiliary backflow hose respectively, and the valve body is further provided with a two-way fluid port communicated with the connecting position of the liquid conveying hose and the auxiliary backflow hose. According to the automatic flow control valve, through the extrusion effect of the middle transmission piece on the elastic pipelines, the circulation sectional area of the infusion hose and the circulation sectional area of the auxiliary backflow hose are automatically adjusted when the system pressure changes, a closed-loop flow control loop is formed, and self-adjustment of flow and overload protection are achieved.

This invention relates to the field of vehicle intelligent control technology, specifically to a vehicle flood prevention collaborative control method and related equipment. The method includes: acquiring environmental perception data and vehicle status data of the vehicle to be processed; inputting the environmental perception data and the vehicle status data into a preset risk assessment model for multi-source data fusion processing to obtain a risk level; and, based on the risk level, invoking a corresponding control strategy to execute flood prevention collaborative control operations. The control strategy includes a remote early warning and suggestion strategy, an active vehicle preparation strategy, an emergency sealing and floating control strategy, and a post-disaster rescue and information sharing strategy. This invention can achieve dynamic prediction and active protection against vehicle flooding risks, improving vehicle safety in heavy rain environments.

The invention provides an aero-engine surge fault intelligent diagnosis method and device, and belongs to the technical field of aero-engine fault diagnosis, and the method comprises the steps: obtaining historical working parameters, carrying out the clustering, constructing a neural network of a digital twin network architecture, carrying out the preliminary screening of the working parameters, carrying out the normalization processing, training a surge model, and finally achieving the real-time surge monitoring. According to the method, historical sortie flight data is directly utilized for training, and the data naturally covers a real flight envelope; a cartridge receiver vibration signal is used as a main monitoring object, the working environment of the vibration sensor is relatively mild, and the reliability is higher; according to the prediction model based on the digital twin network architecture, the accuracy and robustness of surge diagnosis in the whole life cycle are remarkably improved, the model training convergence speed is increased, the requirement for computing resources is reduced, and engineering deployment is facilitated.

The application relates to a separation control method for a symmetric reentry vehicle under lateral instability, and belongs to the technical field of attitude control. A three-channel trimming capability equation is established; lateral control deviation parameters LCDP are calculated; according to the three-channel trimming capability equation and the lateral control deviation parameters LCDP, the controllable attack angle interval of the vehicle is determined as [alpha min , alpha max ]; when the time is, the lateral instability is controlled; according to the physical limit constraint of the pitch rudder deviation range, a target attack angle alpha cx of preset pitch rudder deviation setting attitude adjustment demand before separation is formulated, and the separation control is performed according to the target attack angle alpha cx of the attitude adjustment demand; the application forms a separation control method for a reentry vehicle under lateral instability, is used for vehicle stable separation control method demonstration for the case that the separation control is lateral instability and the control capability is insufficient, and ensures the stability of the vehicle separation control.