27results about How to "Improve driving stability" patented technology

The utility model discloses a railway crossing curve track gauge adjusting device relates to railway engineering technical field, it includes the screw rod of transverse between concrete integral ballast bed and steel rail, one end of screw rod is equipped with the pad iron, and the other end inserts and is equipped in the iron block, and the screw rod is equipped with flat washer, spring washer and nut assembly between the iron block and the pad iron. Compared with prior art, the utility model provides a railway crossing curve track gauge adjusting device that can maintain track gauge stability for a long time and reduce maintenance cost.

The invention relates to a mobile transport system for transporting objects, comprising a base frame, a left drive unit and a right drive unit. Here, the drive units are mounted so as to be movable in the vertical direction relative to the base frame. Each drive unit has a plurality of rollers which are each rotatable relative to the drive unit about a rotational axis which extends in the longitudinal direction. The base frame has a plurality of guide slots which extend in the vertical direction, the rollers of the drive units running on the inner walls of the guide slots of the base frame.

The application discloses a caterpillar self-propelled rotary cultivator, which comprises a chassis system, a power system, a transmission system and a rotary cultivator device. The chassis system comprises a frame assembly, a walking driving mechanism and a walking caterpillar assembly. The walking driving mechanism comprises a gearbox arranged at the front end of the frame assembly. The walking caterpillar assembly comprises caterpillars arranged at the left and right sides of the frame assembly, a driving wheel drivingly connected with the output end of the gearbox, rear wheels supporting the caterpillars and a plurality of supporting wheels. The power system comprises an engine and a fuel tank. The engine is arranged on the frame assembly and drivingly connected with the output end of the gearbox. The fuel tank is arranged on the frame assembly. The transmission system comprises a PTO transmission box and a rear output transmission shaft. The input end of the PTO transmission box is drivingly connected with the output end of the engine, and the rear output end of the PTO transmission box is connected with the rear output transmission shaft. The rotary cultivator device is arranged at the tail of the chassis system. Compared with the prior art, the application realizes comprehensive improvement in power transmission, structural layout, driving experience and operation adaptability.

This application provides a control method for a stick-slip piezoelectric actuator throughout its entire lifecycle, comprising: obtaining a contact force reference value using the equation of the driving characteristic surface; acquiring contact force data from a database; calculating a contact force compensation value and converting it into a compensation voltage for the vertical piezoelectric stack; acquiring step displacement and actual contact force data; obtaining the total wear volume using the Archard adhesive wear model based on the step displacement and voltage data of the vertical piezoelectric stack; proportionally allocating the total wear volume to the slider and driving foot using a wear distribution method based on material hardness; storing the obtained slider wear data, driving foot wear data, and actual contact force data in a contact force database; and predicting contact force data for non-cyclic working ranges based on slider wear data and driving foot wear data within the cyclic working range, and storing this prediction in the database. This method can effectively improve the driving stability of the stick-slip piezoelectric actuator throughout its entire working stroke and lifecycle.

This utility model discloses a self-adjusting dual-wheel caster for AGVs, belonging to the field of AGV technology. It includes a mounting base with a bracket rotatably connected to its bottom. Casters are symmetrically arranged on both sides of the bracket. A movable groove is formed at the bottom of the bracket, housing an automatic adjustment mechanism for the tire tread to contact the ground. The two casters are respectively mounted on the left and right sides of the self-adjusting mechanism. An auxiliary adjustment mechanism for resetting the self-adjusting mechanism is provided above it. This utility model, through its movable groove and free adjustment mechanism, allows the casters to automatically adjust their angle according to load changes, ensuring the tire tread remains in effective contact with the ground, enhancing grip and driving stability. The auxiliary adjustment mechanism utilizes the elasticity of a spring to ensure the free adjustment mechanism quickly returns to its original position, compensating for the reset delay problem inherent in purely mechanical automatic adjustment. Combining manual intervention with automatic adjustment improves system reliability.

The utility model discloses a motorcycle front magnetorheological damper and motorcycle, including working cylinder, guider assembly, piston assembly, floating piston assembly, magnetorheological fluid, outer tube support assembly, ECU control unit and sensor, guider assembly, piston assembly and floating piston assembly are located in the inside of working cylinder, and piston assembly includes built -in solenoid and damping passage, and damping passage penetrates the upper and lower end of piston assembly, and magnetorheological fluid fills the working cavity between guider assembly and floating piston assembly, and, outer tube support assembly is at least partially coated in the outside of working cylinder, and is connected with guider assembly, and ECU control unit and solenoid electric connection are used for the signal adjustment input to solenoid's current according to sensor, like this through solenoid and the combination of magnetorheological fluid, ECU control unit can real -time regulation magnetic field intensity, change the viscosity of magnetorheological fluid to dynamic control damping force.

The utility model provides a kind of engine system and motorcycle, wherein, engine system includes: engine, the engine is set to the rear of motorcycle inclination, and the engine is provided with air inlet and air outlet;Silencer component is connected with the air outlet of the engine, and extend towards the tail of motorcycle after around the engine one week.This scheme effectively improves the compactness of structure by the reasonable layout of engine and silencer component, adjusts the gravity center of motorcycle by changing the inclination direction of engine.

The utility model provides a tire tread structure. A plurality of longitudinal grooves of the tire tread structure are arranged at intervals in the width direction of the tire, so that the tire tread of the tire is divided into a plurality of circumferential pattern parts; the communicating grooves formed in the tire shoulder pattern part are used for communicating the longitudinal grooves with the side part of the tire, and the communicating grooves formed in the tire crown pattern part are used for communicating two adjacent longitudinal grooves; the transverse cutter grooves are provided with bent sections which are arranged in a wave shape or a broken line shape, and transverse cutter grooves are formed in the circumferential pattern part; the reinforcing structure is arranged in the communicating groove and is connected with two groove walls of the communicating groove; wherein the reinforcing structure is provided with a first inclined surface, and the first inclined surface is used for limiting and stopping foreign matters entering the communicating groove. The utility model solves the problem that the tire in the prior art cannot stably run under special road conditions in summer and winter.

The invention relates to the technical field of five-axis machine tools, in particular to a five-axis machine tool rotary table driving device which comprises a rotary table, a sliding base and a machine tool body, the rotary table is rotationally connected to the sliding base along the vertical rotation axis, and the sliding base is slidably connected to the machine tool body in the X-axis direction. The linear driving device has the beneficial effects that the detection precision, the driving precision and the driving stability of the linear driving device are improved through the precise alignment of the reference point of the reading head assembly and the rotation center and the cooperative matching of rigid locking and thermal extension self-adaptive release functions realized by the clamp at the tail end of the lead screw; therefore, the adaptability of the linear driving device to use scenes with high precision requirements is improved, and the requirements for high-precision machining in the high-end manufacturing fields such as aerospace and mold manufacturing are met.

The invention relates to a mobile transport system for transporting objects, comprising a base frame, a left drive unit and a right drive unit. Here, the drive units are mounted so as to be movable in the vertical direction relative to the base frame. Furthermore, the drive units are guided in the vertical direction relative to the base frame in a linear manner, so that movement of the drive units in the longitudinal direction relative to the base frame is prevented.

The application discloses a kind of tube plate laser cutting equipment and its using method, it is related to laser cutting machine technical field, in tube plate laser cutting equipment, pipe material warehouse, machine tool and plate material warehouse are sequentially arranged along X axis direction, pipe material warehouse is equipped with pipe material feeding mechanism, plate material warehouse is equipped with plate material feeding mechanism, machine tool moves along X axis direction by X axis mechanism;The lower portion of portal frame is also equipped with pipe material lifting mechanism, and the pipe material feeding mechanism is movably connected with the portal frame along the Y axis direction;Pipe material feeding mechanism, plate material feeding mechanism, X axis mechanism, pipe material lifting mechanism, pipe material feeding mechanism, Y axis mechanism, Z axis mechanism and laser cutting mechanism are electrically connected with host computer;The method is: after host computer receives the feeding command of pipe material or plate material, host computer drives machine tool to move to plate material or pipe material feeding station, and the pipe material or plate material feeding mechanism is fed to machine tool.The application can improve the degree of automation of pipe material and plate material feeding, and is beneficial to improve feeding efficiency.

This invention discloses a stepped steer-by-wire redundancy control method and system for steering actuator failure, applicable to intelligent electric vehicles with independent steering and drive for all four wheels. When steering actuator failure is detected, the location of the failed wheel is determined and its steering angle is locked. Based on the state of the remaining healthy steering wheels, the maximum yaw moment they can provide is estimated in real time using a tire model. The total required yaw moment is calculated based on driver input and vehicle status. By comparing the two values, a compensation mode is automatically selected: if the steering force is sufficient, a pure steering compensation mode is entered, optimizing only the steering angle of the healthy wheels; if the steering force is insufficient, a hybrid compensation mode is entered, first controlling the healthy wheels to operate in the optimal efficiency state, then calculating the missing steering force step size and compensating through differential torque. This invention pre-sets differentiated strategies for multi-wheel failure scenarios, achieving stepped safety protection from single-wheel to multi-wheel failure, improving vehicle safety, and is low-cost and robust.

The utility model provides a kind of special-shaped small mine truck steel plate spring assembly, including first steel plate spring, the both ends of first steel plate spring are provided with ear, at least one second steel plate spring is stacked in the lower part of first steel plate spring, and the one end of the second steel plate spring adjacent to first steel plate spring is provided with a package ear, the utility model is stacked with the structure of first steel plate spring and second steel plate spring, can flexibly adjust rigidity according to different load conditions, makes suspension deviation frequency keep stable, effectively improves the smoothness of vehicle travel and the riding comfort of driver and passenger.

This invention provides a tire tread structure, including multiple longitudinal grooves spaced apart along the width of the tire to divide the tread into multiple circumferential tread portions. Connecting grooves are provided on the circumferential tread portions; the connecting grooves on the shoulder tread portion connect the longitudinal grooves and the side of the tire, and the connecting grooves on the crown tread portion connect two adjacent longitudinal grooves. Lateral sipes have wavy or zigzag curved sections, and lateral sipes are provided on the circumferential tread portions. Among the lateral sipes spaced apart from the tire's center plane S, the curved sections of the lateral sipes located near the outer side of the tire on the center plane S have a wave pitch S1, and the curved sections of the lateral sipes located near the inner side of the tire on the center plane S have a wave pitch S2, wherein the wave pitches S1 and S2 satisfy: S1 > S2. This invention effectively solves the problem in the prior art that tires cannot maintain stable driving under special road conditions in both summer and winter.

The present application belongs to the field of rail transit technology, and specifically provides a suspension rail transit turnout reversing system, which comprises a track and a vehicle body, the track is provided with a turnout at a branch, the vehicle body is provided with a control unit, the turnout is arranged on the inner wall of the track on both sides, the vehicle body is provided with a rail changing device, the rail changing device comprises a driving unit, a connecting frame and a rail changing wheel, the connecting frame connects the rail changing wheel on both sides of the vehicle body, so that the rail changing wheel can run on the inner wall of the track and cooperate with the corresponding side turnout; the driving unit is in communication connection with the control unit and drives the connecting frame to act, so that the rail changing wheel can move away from the corresponding side turnout; in the present application, the rail changing wheel is arranged on both sides of the vehicle body, does not occupy the roof space, reduces the height of the vehicle body and the track beam, and reduces the manufacturing cost; when the vehicle body runs on a non-turnout, the rail changing wheels on both sides are close to the inner wall of the track, effectively suppresses the lateral swing, and improves the driving stability; when the vehicle body runs on a turnout, only the rail changing wheel on the side opposite to the turning direction needs to act, and the rail changing wheel on the other side needs to keep cooperating with the turnout, so that the rail can be changed.

The utility model relates to the field of house car facilities, concretely relates to a house car chassis of preventing upper loading part deformation, including chassis body, the chassis body bottom side is provided with reinforcing structure, this reinforcing structure includes the front reinforcing frame, middle reinforcing frame and rear reinforcing frame that set gradually from front to back, the chassis with the reinforcing structure forms integrated load bearing frame, the front reinforcing frame includes front bottom support and front side support, the middle reinforcing frame includes middle bottom support and middle side support, the rear reinforcing frame includes rear bottom support and rear side support, the front bottom support, middle bottom support and rear bottom support constitute support reinforcing structure, through support and connection reinforcing structure restrain horizontal deformation, disperse upper load, solve the problem that traditional chassis is not enough to resist torsion, luggage storehouse distributes in wheel arch both sides, utilizes non -running area space, with the room in the car each other corresponds, solve the problem that traditional chassis space is not reasonable in partition, improve utilization and activity convenience.

This utility model discloses a rear axle stabilizer bar left and right suspension tube assembly, which includes: a stabilizer bar, with multi-stage bushings fixedly connected to the lower left and right ends of the stabilizer bar, and a connecting tube fixedly connected to the lower bottom of the multi-stage bushings. A locking mechanism is fixedly connected to the other end of the connecting tube, and fixed side plates are fixedly connected to the left and right ends of the locking mechanism. A fixed shaft is fixedly connected to the inner center of the fixed side plate, and a first ratchet is fixedly connected to the other end of the fixed shaft. A hole is opened in the center of the other end of the fixed side plate, and a connecting rotary handle is provided in the hole. An elastic compression block is provided inside the other end of the rotary handle, and a second ratchet is fixedly connected to the other end of the elastic compression block. This device uses multi-stage bushings to dampen the connecting tube, which can effectively absorb road impacts when the car is cornering, reduce wear on the suspension system, and improve driving stability.

This application provides a vehicle tire blowout control method, system, program product, medium, and device. The method includes the following steps: acquiring information about the blown tire wheel, the current target steering wheel angle, and the current yaw rate; calculating the target yaw rate based on a vehicle model using the blown tire wheel information and the current target steering wheel angle; calculating the steering wheel angle adjustment amount using feedforward control and feedback control of the yaw rate based on the current yaw rate and the target yaw rate; and controlling the vehicle to perform a steering angle equal to the steering wheel angle adjustment amount. The blown tire wheel information includes the wheel dynamics information of the blown tire wheel. This method improves the response speed and control accuracy of tire blowout control, and can comprehensively improve the driving stability and safety of the vehicle under tire blowout conditions.

This application discloses a method, medium, device, and product for controlling vehicle posture. It acquires multi-source driving data of the vehicle; determines the current driving condition of the vehicle based on the multi-source driving data and preset conditions; determines compensation pressure based on the base height corresponding to the driving condition and the real-time height of the vehicle during driving; determines a pressure difference based on the compensation pressure, the base pressure corresponding to the driving condition, and the real-time pressure of the vehicle during driving; and adjusts the air spring pressure used to control the vehicle's posture based on the pressure difference. This application uses real-time height as the outer adjustment target to maintain a stable vehicle posture and real-time pressure as the inner control core to achieve rapid adjustment of support stiffness, realizing a pressure-height-based dual closed-loop control to ensure the response speed and adjustment accuracy of the vehicle's posture, thereby improving the vehicle's driving stability.

This application provides a control method, apparatus, electronic device, computer-readable storage medium, and computer program product for a unicycle. The method includes: displaying a virtual character riding a unicycle in a virtual scene; wherein the unicycle includes a frame and a wheel; responding to a steering command, while keeping the wheel from turning, controlling the unicycle to tilt and controlling the unicycle to turn in the direction of the tilt; during the tilt and turning of the unicycle, controlling the virtual character to adjust its posture, the adjusted posture being adapted to the tilt state of the unicycle. This application improves the driving stability of the unicycle and enhances the accuracy of its control.

The utility model relates to all terrain vehicle field, specifically disclose a two gear transmission of all terrain vehicle, include: input shaft, be used for connecting the drive motor of all terrain vehicle to receive power, two gear transmission subassembly, including high speed gear set and low speed gear set, be used for realizing different speed ratio power transmission respectively, synchronizer, switchable with high speed gear set or low speed gear set cooperation, to select high speed gear or low speed gear power transmission path. In the utility model, through setting two gear transmission subassembly including high speed gear set and low speed gear set, can switch speed ratio according to the driving scene: high speed gear state, power transmission through first high speed gear, second high speed gear, realizes whole car high vehicle speed travel with adaptable speed ratio, low speed gear state, power transmission through first low speed gear, second low speed gear, through greater speed ratio output sufficient torque, improve the climbing performance and acceleration performance.

The utility model discloses a kind of anti-falling multi-wheel independent suspension's tracked amusement car walking system, it is related to amusement car technical field, and it includes: frame body, support, supporting wheel pivot, supporting wheel assembly, supporting idler assembly, shock spring, track, driving wheel and anti-falling device;The frame body both sides symmetry fixed with support, support is symmetrically equipped with several groups supporting idler assembly, support lower end is equipped with multiple groups equidistant distribution shock spring, and each group shock spring is connected in supporting wheel assembly by a group supporting wheel pivot;The anti-falling device is located in driving wheel outside and is axially locked with driving wheel, including with driving wheel coaxial fixed anti-falling baffle and the limiting protrusion of track inboard rim;The utility model is through anti-falling device in with driving wheel rigid connection's anti-falling baffle and the limiting protrusion of track inboard, effectively restricts the axial displacement of track under high-speed steering or lateral impact.

The utility model discloses a stable type frame structure for stacking truck, including the chassis, the upper end both sides of chassis are fixedly connected with the stand column portal, the top between two stand column portal is fixedly connected with the transverse board, is provided with the mount frame to the side close to stand column portal, just mount frame and chassis fixedly connected, the both sides of mount frame all are rotatably connected with the support trundle, the both sides upper end of chassis all are fixedly connected with the connecting seat, two connecting seat's bottom all are fixedly installed with universal wheel, the inside fixed welding of mount frame has the protective housing, the inside fixed mounting of protective housing has double shaft motor, two sides output of double shaft motor all are through the shaft coupling drive connection has the transmission shaft, just transmission shaft and support trundle fixed connection, the stable type frame structure for stacking truck of the utility model solves the problem such as poor stability of the existing technology in stacking truck, lack of damping function, no manual emergency descending capacity etc.

A method of controlling a steer-by-wire steering system according to an aspect of the present application includes receiving a steering angle control command from an upper steering system of the steer-by-wire steering system for controlling a steering angle of a vehicle steering wheel, performing a first filtering process and a second filtering process on the steering angle control command, wherein filtering parameters of the first filtering process and filtering parameters of the second filtering process are dynamically adjusted based on one or more of a current vehicle speed, a current steering wheel steering angle, and a current steering wheel steering speed, determining a steering compensation angle based on at least a vehicle speed-based dynamic weighting of a first filtering process result and a second filtering process result of the steering angle control command, and sending the steering compensation angle to a lower steering system of the steer-by-wire steering system such that the lower steering system controls the vehicle steering wheel according to a target steering angle determined by the steering compensation angle.