455 results about "Speed reduction" patented technology

The invention relates to the technical field of automobile safety, and provides an electric tail gate anti-pinch control method and system, which introduces a prediction + self-adaption intelligent decision normal form, on one hand, the motion information of a tail gate is obtained, and the time sequence data of an obstacle is combined to be input into an LSTM model to predict the track of the obstacle; a collision prediction conclusion is output to be matched with a graded speed reduction strategy to execute tail gate control, and through prediction in advance, the system response efficiency is effectively improved, and the clamping damage probability is reduced; and on the other hand, when a contact signal of the tail gate is detected, real-time contact force and real-time vehicle working condition information are obtained in real time, a dynamic anti-pinch threshold value is calculated and compared with the real-time contact force for analysis so as to execute tail gate control, the dynamic anti-pinch threshold value is dynamically adjusted according to the vehicle working condition and the tail gate state, scene adaptation is carried out, the anti-pinch recognition accuracy can be improved, and the safety of the vehicle is improved. The false triggering probability is reduced; therefore, the electric tail gate anti-pinch system which is faster in response, more intelligent and more reliable is obtained.

The invention relates to the technical field of deceleration motor monitoring and diagnosis, in particular to a deceleration motor health state on-line monitoring and fault diagnosis system, which comprises an operation signal acquisition module for acquiring and processing a signal to generate a trend set, and a vibration and current difference spectrum identification module for establishing a mapping to generate a coupling set, the rotating speed response correlation analysis module analyzes fluctuation and generates a relation graph, the component state diagnosis module identifies abnormal nodes and generates a state set, and the health and fault confirmation module accurately locates fault source points and generates fault identification results through multi-dimensional cross comparison. Through same-period multi-dimensional signal alignment and response identification, dynamic mapping and difference association are established, a quantitative trend and an electromechanical track are formed, coupling analysis integrity is improved, an electromechanical change rule is synchronously extracted, feature response is quantitatively expressed, abnormal node identification precision is enhanced, early fault capture sensitivity and identification are improved, data isolation is reduced, and the method is suitable for large-scale popularization and application. And a logic consistent health judgment basis is constructed.

The invention provides a cooling and lubricating system, a vehicle and a control method of the cooling and lubricating system. The system comprises an oil pan and a conveying pipeline, and the inlet end of the conveying pipeline communicates with the oil pan; the power element, the filtering element, the driving element, the heat exchange element and the speed reduction element are sequentially arranged on the conveying pipeline in the conveying direction of lubricating oil. The outlet end of the conveying pipeline communicates with the oil pan. The temperature detection part is arranged between the filtering element and the driving element so as to detect the real-time temperature of the lubricating oil filtered by the filtering element; and the controller is connected with the temperature detection part so as to control at least one of the rotating speed of the power element, the rotating speed of the driving element, the rotating speed of the speed reduction element and the heat exchange efficiency of the driving element according to the real-time temperature. And the size is huge.

The invention relates to the technical field of scissor fork truck brake control, and discloses a scissor fork type aerial work platform walking brake control system and method.The scissor fork type aerial work platform walking brake control method is characterized in that an operation handle enables a key to reset and triggers a brake request, and initialization and triggering of a brake control sequence are achieved; the state of the shear fork truck is monitored, gradient and load information is collected, and the external environment working condition and the internal load state are synchronously obtained by calling data of a tilt angle sensor and a pressure sensor in real time; according to rapid braking of the shear fork truck, based on data collected in real time, a three-stage cooperative braking strategy of speed reduction, pressure relief and turn-off is adopted, and based on gradient information collected in real time, the switching time sequence between stages is adjusted in a self-adaptive mode, and accurate matching of the braking process, dynamic loads and topographic conditions is achieved; therefore, the effect of considering the braking efficiency and the terminal parking stability on the premise of no mechanical wear is achieved; and the shear fork truck completes braking and tends to stop stably. And different working conditions can be quickly, stably and adaptively adapted.

The invention discloses a safety interlocking system of a formula warehouse stocker and a use method thereof, and belongs to the technical field of warehouse equipment safety, and the safety interlocking system comprises a safety state monitoring module which is used for monitoring safety state information in a stocker roadway in real time; the control module is in communication connection with the safety state monitoring module and is used for receiving and processing the safety state information and generating a control instruction according to preset safety logic; the brake execution module is arranged on the stacking machine, is in signal connection with the control module and is used for receiving the control instruction and executing corresponding speed reduction or brake operation on the stacking machine; and the man-machine interaction and alarm module is in communication connection with the control module and is used for displaying the system state, giving an alarm prompt and receiving a manual instruction. According to the invention, the risk of mechanical injury when personnel enter the roadway is effectively avoided, and the automatic safety level and the overall reliability of the operation of the stacker in the formula warehouse are remarkably improved.

The invention relates to the technical field of robots, and provides a robot and a safety control method, device and equipment thereof, a storage medium and a product, the robot comprises electronic skin, the electronic skin comprises a first detection unit and a second detection unit, and the method comprises the following steps: responding to an obstacle approaching the robot, and detecting the approaching speed of the obstacle through the first detection unit; in response to the approaching speed being greater than or equal to a preset speed threshold value, controlling the robot to perform obstacle avoidance path planning and / or speed reduction; detecting a contact force and a contact moment of the obstacle through a second detection unit in response to the obstacle contacting the robot; and determining safety braking parameters of the robot based on the approaching speed, the contact force and the contact moment. Safety speed monitoring based on proximity detection and power and force limitation based on contact detection in man-machine cooperation can be achieved at the same time, a dual protection mechanism of proximity sensing and contact sensing of the robot is achieved, and safety is further improved.

The invention discloses a double-cycloid speed reducer belonging to the technical field of speed reducers, which comprises an input shaft, a first cycloid mechanism and an output shaft, and is characterized in that a second cycloid mechanism is arranged between the first cycloid mechanism and the output shaft, the second cycloid mechanism is connected in series with the first cycloid mechanism through a transmission shaft, the transmission shaft is linked with the first cycloid mechanism, and the output shaft is connected with the output shaft. The input shaft rotates to drive the transmission shaft to rotate at a reduced speed through the first cycloid mechanism, and the transmission shaft rotates to drive the output shaft to rotate at a reduced speed through the second cycloid mechanism. The first cycloid mechanism and the second cycloid mechanism are arranged in series through the transmission shaft to form a two-stage speed reduction structure of the speed reducer, large-speed-ratio transmission of the speed reducer is achieved, and low noise, low temperature rise, high bearing capacity and high rigidity of the speed reducer in the operation process are kept.

The invention provides a torque coordination control method and system of a hybrid power vehicle and the vehicle, the vehicle at least comprises an engine and a generator, and the method comprises the steps that when the vehicle is in a parallel drive mode, the engine demand torque of the whole vehicle is monitored at a first preset frequency; when it is monitored that the required torque of the engine is reduced and the reduction rate is larger than a first preset threshold value, a rapid compensation mode is started; after entering the rapid compensation mode, continuously monitoring the required torque of the engine; and if the rapid compensation mode is not triggered again within the second preset duration, switching to the slow adjustment mode. The torque coordination control method provided by the invention is applied to the hybrid power vehicle, thrust angle torque reduction of the engine is avoided through negative torque intervention of the generator, stable speed reduction of the hybrid power vehicle is realized, fuel oil waste is avoided, and meanwhile, the energy utilization rate of the generator is improved.

The utility model relates to the field of automobile transmission devices, in particular to a ratchet wheel type automobile differential mechanism lock which comprises a differential mechanism and a half shaft, a ratchet wheel mechanism is arranged on the half shaft, the differential mechanism is provided with a driving piece used for driving the ratchet wheel mechanism, and a gear shifting fork used for moving the position of the ratchet wheel mechanism is further arranged on the half shaft. The ratchet mechanism is used for switching forward or reverse gears, and a speed reduction assembly is arranged between the ratchet mechanism and the driving piece. The driving piece is arranged on the differential mechanism to drive the ratchet wheel mechanisms on the left half shaft and the right half shaft, when one wheel slips, due to the principle of the differential mechanism, the other wheel half shaft stops rotating, pawls in the ratchet wheel mechanisms drive the ratchet wheels to rotate, then the ratchet wheels drive the half shafts to rotate, and a differential mechanism lock does not need to be frequently opened and closed. Therefore, the problem that the differential lock needs to be continuously opened and closed under different road conditions can be solved.

The operation control method includes: executing travel control related to travel of the work machine; and adjusting acceleration until time at which a travel speed of the work machine reaches target speeds V1, V2 during the speed reduction of the work machine in accordance with a user's operation.

The invention discloses an escalator abnormal work intervention method and application thereof. According to the scheme, multi-source equipment monitoring data such as vibration, temperature, current, rotating speed, linear speed and braking torque of a power component and a moving component of an escalator are synchronously obtained through a sensor group; meanwhile, on-site use state data such as passenger flow quantity, unit step level load, left and right load unbalance degree, congestion retention state and abnormal elevator taking behavior of the escalator working site are obtained; on the basis of the data, according to the scheme, an equipment side health characterization vector and a use side state characterization vector are constructed based on methods of envelope demodulation, spectral analysis, temperature rise rate, normalization processing and the like; and through weighted linear combination, Sigmoid mapping and quantification methods, risk levels are given in real time, differential intervention strategies such as speed reduction, current limiting, direction locking, smooth speed reduction and acousto-optic prompt are automatically selected according to different risk levels, and active early warning and grading disposal of abnormal working conditions are realized.

The invention discloses a dual-bearing positioning planetary gear type middle motor, which comprises a shell assembly, a controller assembly, a planetary speed reduction assembly and a rotor assembly, and is characterized in that all core transmission parts coaxially rotate around a main shaft to form a compact axial layout; the main shaft adopts a double-bearing positioning structure, so that the rotation stability and the positioning precision are improved. The planetary reduction assembly is a core adjusting mechanism, an outer gear ring can rotate forwards and backwards under the transmission cooperation of an adjusting motor, a worm and a worm gear ring, and then the reduction ratio is flexibly adjusted. The shell assembly and the controller assembly adopt a double-sealing structure to improve the waterproof performance, a torque sensor is arranged in the second shell, the detection end of the torque sensor is connected with a spindle spline, and intelligent adjustment of the reduction ratio is achieved in cooperation with a controller. The device has the advantages of being compact in structure, small in size, small in vibration, adjustable in reduction ratio, reliable in sealing and high in intelligent degree, can adapt to different driving working conditions of the light electric vehicle, and improves the power performance and the cruising ability.

A speed reduction structure for a tape measure, comprising a tape (100), a case (200), a tape measure hub (300), and a winding member (400), wherein the tape measure hub (300) is rotatably arranged inside the case (200); the tape (100) is wound on the tape measure hub (300); the winding member (400) is arranged inside the case (200) and is connected to the tape measure hub (300); the winding member (400) is configured to drive the tape measure hub (300) to rotate and wind the tape (100). The speed reduction structure further comprises: a flywheel plate (500), wherein the flywheel plate (500) is arranged on the tape measure hub (300); and a speed reduction assembly (600), wherein the speed reduction assembly (600) is arranged inside the case (200), and when the tape measure hub (300) rotates, the flywheel plate (500) collides with the speed reduction assembly (600), and the speed reduction assembly (600) buffers and reduces the speed of the tape measure hub (300). Thus, the speed reduction structure for the tape measure has the effect of reducing potential safety hazards during use of a steel tape measure. In addition, also provided are a tape measure capable of realizing emergency-stop, speed reduction, and safe retraction, a tape measure capable of realizing friction-based speed reduction, a tape measure capable of realizing noise reduction and speed reduction, an adjustable tape measure capable of realizing centrifugal speed reduction, a tape measure capable of realizing fly-hammer-based speed reduction, and a tape measure capable of realizing stop-position speed-limiting.

The utility model relates to the technical field of railway vehicle safe operation, and discloses a railway vehicle flexible car stop which comprises a mounting frame, fixing plates are fixedly connected to the periphery of the bottom of the mounting frame respectively, speed reduction assemblies are arranged at the bottoms of the fixing plates, a buffer is arranged at the top of the mounting frame, and a baffle is fixedly connected to the outer portion of the buffer. An adjusting assembly is arranged in the baffle; the speed reduction assembly comprises a connecting plate, the connecting plate is fixedly connected to the bottom of the fixing plate, a cushion block is fixedly connected to the bottom of the connecting plate, two damping rails are connected to the outer portion of the cushion block through first bolts, and railway lines are arranged at the opposite positions of the two damping rails. According to the utility model, a railway line is clamped by the damping rail, so that strong friction force generated by the first friction plate and the second friction plate brakes a vehicle from the bottom. The magnitude of the friction force is in direct proportion to the impact force of the vehicle, so that the kinetic energy of the vehicle can be effectively consumed, and the speed of the vehicle can be reduced within a short distance.

The invention relates to the technical field of locks, in particular to a four-stage speed reducer of a motor lock body. The four-stage speed reducer of the motor lock body comprises a shell, a first speed reducer, a second speed reducer and a third speed reducer, the fourth-stage reduction gear set is arranged in the first mounting cavity, and the fourth-stage reduction gear set is meshed with the motor; the position detection assembly is arranged in the first mounting cavity; and the cover body is fixedly arranged at the top of the shell, a second mounting cavity is formed in the cover body, a control panel is mounted in the second mounting cavity, and the control panel is electrically connected with the motor and the position detection assembly. The control panel, the four-stage reduction gear set and the position detection assembly are integrally arranged, so that the space layout in the motor lock body is optimized, the space utilization rate is increased, the assembly difficulty is reduced, the part cost is reduced, the structural strength of a lock body main part is enhanced, the impact resistance and damage resistance of the lock body are improved, and the service life of the lock body is prolonged.

The base station comprises a cleaning disc and a driving assembly, a cleaning groove is formed in the bottom of the cleaning disc, a supporting piece is erected above the cleaning disc and located above the cleaning groove, and a first cleaning piece is arranged on the surface of the supporting piece; the driving assembly is arranged on the cleaning disc and comprises a driving shell, a transmission speed reduction assembly, a transmission reversing assembly and a second cleaning piece, the transmission speed reduction assembly and the transmission reversing assembly are arranged on the driving shell, one end of the transmission reversing assembly is connected to the transmission speed reduction assembly, and the other end of the transmission reversing assembly is connected with the second cleaning piece. The end, away from the transmission reversing assembly, of the transmission speed reduction assembly extends out of the driving shell and is used for being detachably connected with the mop assembly. According to the base station, the first cleaning piece can clean the mop assembly, and self-cleaning of the mop assembly is achieved; in addition, the second cleaning piece can clean the cleaning tank, accumulation of stains, silt and the like is reduced, and then the use experience of a user is improved; meanwhile, the production cost can be reduced, and the safe use performance is improved.

The utility model discloses a tackle with a pulley auxiliary assembly in the technical field of tackles, the tackle with the pulley auxiliary assembly comprises a pulley and a rotating shaft, the pulley is fixedly installed on the rotating shaft, supporting plates are oppositely arranged on the rotating shaft, a fixing block is arranged between the two supporting plates, a rotating seat is arranged on the fixing block, and the pulley auxiliary assembly is arranged on the rotating seat. The utility model solves the problems that the speed reduction assembly is not arranged on the existing scenic spot tackle, the speed of tourists sliding on the mooring rope along with the tackle is higher and higher under the action of gravity, the potential safety hazard is great, and the tackle can be used for reducing the speed of the tourists due to the fact that the tackle is not provided with the speed reduction assembly. And the psychology of the tourist is greatly influenced.

The application discloses a variable-frequency-power-frequency automatic switching energy-saving system and method, and belongs to the technical field of motor control, which comprises the following steps: in the variable-frequency starting stage, a motor is driven to run at variable speed by a frequency converter; when the motor reaches full frequency, high power and stable operation, a control device controls the output voltage of the frequency converter to be synchronous with the grid voltage, and the switching to the power-frequency grid is completed when the phases are consistent; when the load decreases and needs to be reduced, the control device starts the frequency converter to make the output voltage of the frequency converter synchronous with the counter electromotive force of the motor in the power-frequency operation, then performs a back switching operation, the motor in rotation is smoothly connected by the frequency converter, and speed reduction control is implemented, and finally the variable-frequency speed regulation operation state is returned; the application realizes automatic selection of the optimal operation mode according to the actual load, avoids energy loss of the frequency converter in the high-speed area, and ensures that the impact on the motor and the grid in the switching process is minimum.

The application provides a kind of engineering vehicle walking steering integrated control device based on double pump swing arm linkage, adopts double pump independent variable + mechanical swing arm linkage, without electromagnetic valve, without complex circuit, pure mechanical hydraulic control, high reliability, can realize zero radius spot steering, greatly improve the vehicle mobility and operation efficiency.The device includes gear reducer, double pump, mechanical control mechanism;Mechanical control mechanism contains steering wheel connecting rod 1, forward and backward block connecting rod 5, swing arm assembly (front pump swing arm 12, rear pump swing arm 16), drum guide assembly.The power output end of gear reducer drives double pump rotation, the output pressure oil of double pump, after speed reduction and torque increase by walking gear reducer, drives vehicle walking, realizes forward, backward, left turn, right turn and spot steering.

The embodiment of the utility model provides a shaft body replacement auxiliary device. The shaft body replacement auxiliary device comprises a rack, a lifting table and a driving kit. The lifting platform is movably connected with the rack; the driving sleeve is in driving connection with the lifting table and used for driving the lifting table to move relative to the rack. The driving kit comprises a speed reduction assembly, a non-return assembly and a driving input piece, the driving input piece is in transmission connection with the speed reduction assembly, the speed reduction assembly is in driving connection with the lifting table, and the non-return assembly is in transmission connection with the speed reduction assembly and used for allowing the speed reduction assembly to conduct transmission in at least one direction and stopping transmission in the corresponding opposite direction. The rack can provide support, and the lifting table is movably connected with the rack and used for bearing the shaft body and moving the shaft body. Force input by the driving input part is amplified through the speed reduction assembly, and then the bearing shaft body is helped. And the non-return assembly is in transmission connection with the speed reduction assembly and performs non-return, so that mechanical failure of the shaft body replacement auxiliary device due to extrusion influence of the shaft body is prevented, and damage to an operator or the shaft body replacement auxiliary device is prevented.

The utility model discloses an integrated shaft type right-angle planetary reducer which comprises a machine shell, a first-stage speed reducing mechanism and a second-stage speed reducing mechanism, the first-stage speed reducing mechanism and the second-stage speed reducing mechanism are used for speed reduction, and the first-stage speed reducing mechanism and the second-stage speed reducing mechanism are both arranged in the machine shell. According to the integrated shaft type right-angle planetary reducer, the first-stage speed reducer achieves speed reduction through tooth number difference matching of a main transmission gear shaft and a driven spiral bevel gear, the interior of the driven spiral bevel gear is kept stable through a center shaft, and the second-stage speed reducer achieves speed reduction through matching of a planet shaft, a planet gear, a sun gear and a planet carrier; the speed reducer has the advantages of being high in speed reduction transmission stability, high in rotating speed, low in torque input, low in rotating speed and large in torque output, free of over-positioning in overall installation, high in safety coefficient, high in working efficiency, high in bearing capacity and suitable for large-capacity stirrers.

The application relates to a hollow type speed reducer which comprises a pin gear shell and a first stage speed reduction component and a second stage speed reduction component, the first stage speed reduction component comprises a driving wheel, a double gear and a planetary gear, the second stage speed reduction component comprises a plurality of eccentric shafts, two cycloid gears, a plurality of pin pins and an output shaft cover, the output shaft cover is rotationally arranged in the pin gear shell, and the planetary gear is connected to one end of the eccentric shaft; a cooling cavity is arranged in the eccentric shaft, the output shaft cover comprises an upper cover and a lower cover, the upper cover is arranged close to the planetary gear, annular liquid storage cavities are arranged on the sides adjacent to the upper cover and the lower cover, the two ends of the eccentric shaft are respectively and sealingly rotationally connected to the upper cover and the lower cover, and the two ends of the cooling cavity are respectively communicated with the two liquid storage cavities. According to the application, the cooling cavity is arranged in the eccentric shaft, circulation and flow of the cooling liquid between the cooling cavity and the liquid storage cavities can be formed when the speed reducer rotates forward and reversely, the annular liquid storage cavities facilitate heat dissipation of the cooling liquid, and the heat dissipation and temperature control effects of the eccentric shaft and the cylindrical cam thereon can be greatly improved.

The utility model relates to the technical field of cycloid speed reducers, and discloses a large-torque stable cycloid speed reducer for stirring, which comprises a cycloid speed reducer main body, an output shaft is connected to the middle of the cycloid speed reducer main body, the output shaft penetrates through and is connected with a base, the base is positioned on one side of the cycloid speed reducer main body, and a lifting component is connected to the lower surface of the base. An oil inlet assembly is arranged on the surface of the cycloid speed reducer body. According to the large-torque stable cycloidal speed reducer for stirring, through mutual cooperation of a base, a screw, a nut and a lifting assembly, a worker can start a rotating motor by controlling a power source of the rotating motor, then a threaded rod is driven to rotate, a moving block moves on the threaded rod, and then a supporting rod B is driven to move; according to the cycloid speed reducer, the supporting plate drives the base and the cycloid speed reducer body to move up and down, so that a worker can conveniently adjust the height of the cycloid speed reducer and use the cycloid speed reducer, and after the cycloid speed reducer is used for a long time, the cycloid speed reducer cannot deviate.

The invention relates to a high-stability precision robot joint speed reducer, and belongs to the technical field of robots. Comprising a shell, a front shell is arranged on the left side of the shell, a speed reduction assembly is arranged on the right side of the front shell, the speed reduction assembly comprises a transmission shaft, the connecting end of the transmission shaft is rotationally connected with the front shell, the outer wall of the transmission shaft is fixedly sleeved with a transmission gear, the outer side of the transmission gear is meshed with multiple sets of planet wheels, and the outer sides of the planet wheels are meshed with planet fluted discs. By arranging the planet wheels, the hydraulic oil tank and the electromagnetic pieces, speed reduction is achieved through meshing transmission of the planet wheels, then non-contact auxiliary speed reduction is achieved through uniform resistance of hydraulic oil to speed reduction fan blades, finally accurate regulation and control are conducted through repulsive force of the electromagnetic pieces and permanent magnet strips, the speed reduction proportion can be adjusted according to needs in cooperation with a micro linear motor, and the speed reduction efficiency is improved. And the working requirements of different loads and different rotating speeds of robot joints are met, high-precision power output is finally achieved, and the strict requirement of a precision working scene for speed reduction precision is met.

The utility model discloses a gear reducer capable of being uniformly and fully lubricated, which comprises a reducer casing provided with a reduction gear component. The speed reducer shell is provided with a collecting tank, a filtering assembly is installed at the bottom of the speed reducer shell, and an oil pump is installed on the speed reducer shell and communicated with the filtering assembly through a hose. The oil pump communicates with the top of the speed reducer shell through a hose, and a flow dividing mechanism is installed on the top of the speed reducer shell. The filtering assembly comprises a filter and a retaining piece, and a cover plate is fixed outside the speed reducer shell and is fixed through screws; the flow dividing mechanism comprises a flow dividing plate, and flow dividing through holes are formed in the flow dividing plate corresponding to the reduction gear assembly; when the filter needs to be cleaned, the filter can be cleaned by unscrewing the screws, then taking off the cover plate and taking out the retainer; meanwhile, the top cover plate can be opened by unscrewing the screws, and the splitter plate is cleaned; lubricating oil enters the gap cavity and then is sprayed out through the diversion through holes under pressure, and the reduction gear assembly below is evenly sprayed.

The utility model belongs to the technical field of automatic control of sliding doors, and particularly relates to a door closing device and a sliding door structure, and the door closing device comprises a microprocessor, and a stress sensor, an acceleration sensor and a deceleration module which are respectively in signal connection with the microprocessor, wherein the acceleration sensor is used for identifying the motion state of the sliding door; the stress sensor is used for identifying the position of the sliding door; the speed reduction module is mounted on a rail on one side, close to a door frame, of the sliding door; wherein the microprocessor obtains motion state information and position information of the sliding door and sends a speed reduction instruction to the speed reduction module based on the motion state information and the position information, and the speed reduction module is started according to the speed reduction instruction so as to stop the sliding door in a closed state. The door closing device can decelerate the sliding door and stop the sliding door in the closed state, so that the sliding door can be prevented from being collided and rebounded, and the use experience of a user is improved.

Title of the invention: Transmission shaft coupling system The present invention relates to a transmission shaft coupling system comprising: - a driving shaft (2) including a first drive spline; - a driven shaft (3) coaxial with the driving shaft including a second drive spline; - a dog clutch sleeve (30) including at least a first connecting spline adapted to drive the driving shaft in rotation about a first axis of rotation (X) and a second connecting spline adapted to drive the driven shaft in rotation;- an actuation device (10) comprising an electric motor kinematically linked to a speed reduction device, an output shaft (40) of the speed reduction device rotating about a second axis of rotation (Y), an interface component (20) disposed at the end of the output shaft and arranged to pivot within the dog clutch sleeve, and an elastic damping means (50) acting in torsion about the second axis of rotation (Y) is disposed between the output shaft (40) and the interface component (20) of the actuation device. Abstract figure: Figure 1;

The invention discloses a mechanical diesel engine rotating speed control method and system.The method is executed by a whole machine controller and comprises the steps that the real-time rotating speed of a mechanical diesel engine and a monitoring signal used for judging the whole machine load state are obtained; judging whether the whole machine is in a no-load state based on the monitoring signal; when the whole machine is in the no-load state, the difference value between the real-time rotating speed and the current gear target rotating speed is calculated; judging whether the calculated difference value exceeds a preset difference value threshold value or not; if yes, calculating a voltage correction amount according to the difference value and a pre-stored calibration mapping relation between the rotating speed and the voltage; and adjusting the control voltage output to the accelerator motor based on the voltage correction so as to adjust the rotating speed of the mechanical diesel engine. Real-time feedback and closed-loop adjustment are carried out on the rotating speed of the mechanical diesel engine in the no-load state, rotating speed reduction is effectively restrained, synchronous updating of all-gear calibration parameters is achieved through single-gear correction, and the rotating speed control precision and the system calibration efficiency are remarkably improved.

The application discloses a path tracking control method and device of a vehicle, the vehicle and a medium. The method comprises the following steps: traversing each path node in a reference path, obtaining a current vehicle speed and a current pose of a current path node; determining a preview distance corresponding to the current vehicle speed based on a preset mapping rule; and predicting a predicted pose of the vehicle at a next path node according to the preview distance. According to the current pose and the predicted pose, it is determined whether the vehicle deviates. If not, the next path node is traversed. If yes, the current vehicle speed is reduced to obtain a target vehicle speed, and the next path node is traversed. When the last path node is traversed, a vehicle speed sequence of each node is generated, and the vehicle is controlled to track and drive based on the vehicle speed sequence. Thus, the preview distance and the vehicle speed are dynamically associated, the future pose change of the vehicle is predicted in real time, and whether there is a deviation risk is identified in advance. If there is, the deviation of the vehicle in the transverse direction is corrected through longitudinal speed reduction, and accurate tracking is realized.