9 results about "Control aspects" patented technology

The application provides a kind of multi-unmanned aerial vehicle system distributed formation control method, comprising: S1: the dynamics modeling of multi-unmanned aerial vehicle system is carried out, and the dynamics model of multi-unmanned aerial vehicle system is obtained;Desired trajectory of multi-unmanned aerial vehicle system is expressed geometrically, and formation control coordinate condition is set;Control target expression is constructed by dynamics model and formation control coordinate condition;S2: the formation control problem of control target expression is converted into state consistency problem by variable transformation, and improved control target expression is constructed;S3: the distributed formation controller based on smooth control is constructed by improved control target expression, and the motion of multi-unmanned aerial vehicle system is controlled by the distributed formation controller based on smooth control.The application adopts distributed control algorithm, solves the high load problem generally faced in communication and control of centralized control method, and greatly reduces control cost.

The application relates to the technical field of industrial equipment driving cooperative control methods, in particular to a multi-motor layered cooperative control method of a permanent magnet direct drive belt conveyor, a single-machine self-disturbance control + multi-machine layered cooperative control strategy is constructed, the core advantage of which lies in solving the cooperative control problem of the multi-motor system of the permanent magnet direct drive belt conveyor; meanwhile, aiming at the flexible connection characteristics of the long-distance conveying belt, the application introduces an electromechanical coupling model and time delay estimation, adopts a time delay feedforward + tension compensation compensation control strategy for the tail motor and the book total generation, compensates the tension wave and the transmission time delay, and effectively alleviates the speed lag and tension impact phenomenon in the operation process. In the aspect of anti-disturbance control, the single machine uses a sliding mode to enhance a nonlinear extended state observer SM-NLESO, considers the rapidity and overshoot suppression, can accurately estimate and compensate external disturbances such as parameter perturbation and sudden load, and significantly improves the robustness of the system.

The present invention discloses a method and apparatus for controlling autonomous navigation of a ship. By implementing an autonomous navigation control device for a ship using a discrete fuzzy PD controller instead of a conventional discrete PD controller, the conventional fixed control gain is varied according to the fuzzy control method. Consequently, the operating range of the autonomous navigation control device is not limited to a specific operating point, but rather appropriately controls the ship's heading angle across multiple operating ranges, thereby demonstrating superior performance in path estimation control.

Systems and methods are provided for automatically implementing parental controls at a computing device. One example method includes identifying a user profile and determining a baseline user behavior associated with the user profile. Deviations from the baseline user behavior at a computing device associated with the user profile are monitored for. A confidence value is generated based on the deviations from the baseline user behavior. An action to perform at the computing device is determined based on the user behavior and the confidence value. The action is performed.

The application discloses a 4WIS mode controller based on a road adhesion coefficient and speed, and the method is based on a road adhesion coefficient and a longitudinal vehicle speed in the aspect of trajectory tracking control of a four-wheel independent steering vehicle, three self-adaptive steering modes of high adhesion low speed, high adhesion high speed and low adhesion steady running are designed, and the optimization matching of steering characteristics under different working conditions is realized.

The application discloses a 4WIS-4WID integrated control method based on an attachment coefficient, which constructs an integrated control framework with a road surface attachment coefficient as the core in the integrated control of a four-wheel independent steering and a four-wheel independent driving system. The framework takes a steering trajectory tracking controller and a driving stability controller as collaborative subjects, realizes information interaction and function collaboration of steering and driving through global sharing of the attachment coefficient, and forms a "turning angle-torque" two-dimensional regulation and control mode. The designed integrated controller realizes further optimization in tracking accuracy and lateral stability, and fully embodies the technical advantages of multi-degree-of-freedom collaborative regulation and control.

Aspects of the present invention relate to a control system and method for controlling a state of charge of energy storage means of a hybrid electric vehicle, the control system comprising one or more electronic controllers, the one or more electronic controllers configured to:receive destination data;determine a route to be travelled by the vehicle, the route comprising one or more characteristics, in dependence on the received destination data; andcontrol the state of charge of the energy storage means in dependence on the route to allow the vehicle to travel an end portion of the route in an electric-only mode.

The application discloses a ground-air dual-mode multi-diffuser wall-climbing aircraft and a design and control method thereof, and relates to the field of unmanned aerial vehicles.The aircraft comprises a radial lightweight frame, a plurality of small-diffuser fan assemblies arranged circumferentially on the side of the frame, and a wheel set driving assembly installed at four corners of the frame.The characteristic curve and geometric model of the small-diffuser fan assembly are obtained by using CFD simulation, and the installation height of the wheel set driving assembly is designed by coupling and optimizing the characteristic curve and the geometric model, so that the frame structure design and assembly are completed.In terms of control, a multi-input-multiple-output mapping control model is established by taking the rotation speed and power as control input and taking the lift, target pressure difference / adsorption force and diffuser distribution coefficient as output according to the dynamics of the unmanned aerial vehicle and in combination with simulation calibration data, so that stable control and smooth switching in the flight mode and the wall-climbing mode are realized.The application can improve the multi-point adsorption redundancy and stable wall-climbing capability, and support wall surface free movement and multi-scene inspection operation.