9results about How to "Ensure stability and security" patented technology

The application discloses a kind of based on AFS and DYC's hub electric vehicle coordination control method, belong to electric vehicle control field, the device mainly contains centroid side slip angle observation module, lateral acceleration sensor, state identification module, AFS module, DYC module and coordination control module.Main steps:1, centroid side slip angle observation module and lateral acceleration sensor vehicle state information is passed to state identification module;2, state identification module according to the state information collected, divides vehicle driving area;3, coordination control module according to the determination result of state identification module, designs the weight distribution scheme of AFS controller and DYC controller.The main advantages of the application are: firstly, centroid side slip angle and lateral acceleration two variables are simultaneously included in vehicle driving state determination;Secondly, coordination control strategy not only guarantees vehicle safety stability, but also can improve ride comfort.

The utility model discloses a kind of automobile brushless motor adapter plate support fixed structure, it includes stator fusion welding assembly, busbar terminal board and adapter plate support piece;The stator fusion welding assembly has insulating framework on, the busbar terminal board is positioned and assembled in the inner ring of insulating framework, the adapter plate support piece is positioned and assembled in the outer ring of insulating framework;The busbar terminal board has multiple three-phase welding head, the adapter plate support piece top periphery is extended upwards and is shaped with multiple corresponding three-phase welding head adapter guide plate, each the adapter guide plate is provided with L-shaped adapter copper sheet, the L-shaped adapter copper sheet one end is welded with three-phase welding head and the other end extends upwards.

The application discloses a shell blowing mechanism for an industrial internet of things, and relates to the field of device shell preparation devices.The shell blowing mechanism comprises a case, a plurality of air knife assemblies are arranged in the case, the air knife assemblies are arranged in an array in the case, and a blowing space is formed between the air knife assemblies.The air knife assemblies are floatingly installed in the case, and the boundary of the blowing space can change with the floating of the air knife assemblies.The shell surface is blown by the air knife assemblies, and the floating installation of the air knife assemblies enables the blowing space to change with the floating of the air knife assemblies, so that dead corners can be blown, and the blowing space boundary can change to adapt to the blowing of the shells of products of various specifications.

The utility model discloses a spray needle head hoisting tool, and belongs to the field of hoisting tools. The device mainly comprises a bearing assembly, wherein the bearing assembly comprises a ball bearing for supporting the tip of a spray needle head; and the holding assembly is installed on the ball bearing, the holding assembly comprises a first steel ring and a second steel ring which are used for holding the spray needle head and hinged to each other, and lifting lugs connected with an external lifting tool are arranged on the first steel ring and the second steel ring. According to the spray needle head hoisting tool, the holding assembly is opened in a C shape through a hinge structure of the first steel ring and the second steel ring, the periphery of the spray needle head is directly sleeved with the steel rings from the side face under the condition that a rotating wheel is not dismantled, meanwhile, a ball bearing of the bearing assembly is connected to the tip end of the spray needle head in a sleeving mode, and a double-positioning structure of tip end supporting and periphery holding is formed; and therefore, the spray needle head can be stably hoisted.

The invention discloses a vehicle-mounted flight stretcher which is composed of a rescue vehicle platform and a vehicle-mounted rescue aircraft, the vehicle-mounted rescue aircraft comprises a rescue aircraft body and a ground rescue vehicle platform, and a special lifting type take-off and landing cabin is arranged on the ground rescue vehicle platform; the vehicle-mounted rescue aircraft body adopts a double-row serial heterogeneous duct layout, a streamline battery cabin is fixedly connected right below a main body frame of the aircraft body through hanging points, and an energy module is packaged in the streamline battery cabin; a load management system is integrated on the abdomen of the vehicle body main body frame, namely between the energy module and the vehicle body main body frame, and a medical stretcher is arranged under the load management system. A specially-designed large-load, compact and disassembly-free ducted aircraft serves as a connection aircraft to achieve the function similar to a stretcher, and the problem that vehicles cannot pass through and cannot be driven in harsh rescue environments such as dense forest mountains, traffic jam highways and urban blocked streets is solved.

The utility model discloses a non-visual automatic protection frame device, and belongs to the technical field of protection technologies in the debugging and running process of a robot. The robot comprises a frame, the frame comprises an upper layer and a lower layer, the upper layer is provided with a driver, a controller and a power source, the lower layer is used as a robot activity space, and a movement mechanism is arranged at the bottom of the frame; the top of the protection mechanism is connected with the top of the frame, and the bottom of the protection mechanism penetrates through the upper layer of the frame to be connected with a robot; the controller, the driver, the protection mechanism and the movement mechanism are in communication connection; according to the utility model, the tension sensor and the horizontal sensor are ingeniously combined, so that the spatial position of the robot relative to the protective frame can be accurately sensed. By means of the innovative design, the position of the protection frame can be automatically adjusted, it is guaranteed that the robot is located in a safety protection center area all the time, and the protection effect is greatly improved.

The invention discloses a multi-converter-station reactive power control method for a flexible direct-current output system based on a power operation domain, and belongs to the technical field of offshore wind power flexible direct-current power transmission. The method comprises the following steps: calculating the reactive power demand of a receiving-end converter station according to grid-connected point voltage, a reactive power initial value before reactive power fluctuation of the converter station and other information; then stable operation constraint conditions of the receiving-end converter station are analyzed, the constraint conditions comprise converter station apparent power constraint, converter station alternating current limit constraint and converter station alternating current bus voltage constraint, and the steady-state power operation domain of the receiving-end converter station is determined by solving the boundary of the constraint conditions; and finally, based on a reactive power demand and the steady-state power operation domain, designing an active rapid transfer control method considering reactive fluctuation, and realizing power mutual aid and cooperative control among multiple converter stations. According to the method, the offshore wind power flexible direct output system can be always maintained in a steady-state power operation domain, and the reactive power supporting capacity and the operation stability of the system are improved.

The utility model relates to a curtain board installation combination which comprises a prefabricated F1 type curtain board, a prefabricated F2 type curtain board, a prefabricated F3 type curtain board, a prefabricated F4 type curtain board, a prefabricated F5 type curtain board and a prefabricated F6 type curtain board, the length of the prefabricated F1 type curtain board, the prefabricated F2 type curtain board and the prefabricated F3 type curtain board is 1000 mm, the length of the prefabricated F4 type curtain board is 400 mm, the length of the prefabricated F4 type curtain board is consistent with the length of an anchoring stay wire foundation, and the prefabricated F5 type curtain board and the prefabricated F6 type curtain board are zero setting sections. The length is calculated based on the bridge floor length and the number of the contact net stand column foundations and the number of the anchoring stay wire foundations, the F1 type shielding plate and the F5 type shielding plate are used for a common section, the F2 type shielding plate and the F6 type shielding plate are used for installing a railing stand column or a vertical sound barrier stand column, the F3 type shielding plate is used for the foundation with the contact net stand column, and the F4 type shielding plate is used for the foundation with the anchoring stay wire. And various types of shielding plates are configured in a combined manner according to the structural characteristics of mounting positions. Through the collaborative design of prefabricated parting and combined assembly, the problem of cutting or customizing special-shaped components on site is avoided, and the construction efficiency is improved.

This utility model relates to the field of wall washer lights and discloses a modular quick-installation wall washer light, including a housing. Multiple light bodies are installed in the middle of the housing, and an installation assembly is installed in the lower part of the housing. The housing includes a shell, with mounting plates fixedly connected to the front and rear of the inner wall. Multiple positioning grooves are formed on the top of the mounting plates. A top frame is provided on the upper part of the shell, with limiting strips fixedly connected to the front and rear of the bottom of the top frame. An installation ring is fixedly connected to the outer wall of the light body, overlapping the upper part of two mounting plates. Limiting grooves are formed on the front and rear of the top of the installation ring, and the limiting strips are inserted into the limiting grooves. In this utility model, by setting up the cooperation between the housing, light bodies, installation assembly, contact base, contact head, and other components, when a single light body inside the wall washer light is damaged, it can be quickly disassembled, replaced, and installed, making it more practical.