106 results about "Body roll" patented technology

The multi-directional controllable suspension system comprises a linear electromagnetic vibration reduction assembly and an arc-surface electromagnetic vibration reduction assembly, when the multi-directional controllable suspension system is used, when a vehicle frame at the lower end vibrates vertically, a first guide rod moves in the axial direction of an outer cylinder, and a cylindrical electromagnetic coupling unit fixed to the first guide rod moves between an outer permanent magnet array and an inner permanent magnet array; when the vehicle body inclines laterally or twists, the outer cylinder rotates around the hinged point of the outer cylinder and the lower end vehicle frame, the cambered surface electromagnetic coupling unit is driven to deflect between the upper permanent magnet array and the lower permanent magnet array, the gradient magnetic field is cut to generate resistance moment, and vibration is reduced. The first elastic piece and the second elastic piece provide elastic restoring force for the upper permanent magnet array and the lower permanent magnet array correspondingly to cooperatively inhibit side inclination and torsion, so that multi-dimensional vibration reduction in the horizontal direction is achieved, and the dynamic stability of the vehicle is improved.

The invention relates to the technical field of intelligent control of fitness equipment, and provides a power roller training intensity intelligent matching method based on elastic resistance self-adaptive adjustment. The method comprises the following steps: acquiring motion state data of a user during abdominal wheel training in real time through a sensor module; the motion state data and the physiological state data are input into a training intensity matching model, and the training intensity matching model calculates the matching degree of the current training intensity and the target training intensity according to preset training target parameters in combination with basic body parameters input by the user; when the matching degree is lower than a preset matching threshold value, a resistance adjusting instruction is generated according to the training intensity matching model, and the resistance adjusting instruction correspondingly controls the deformation degree or the meshing tooth number of an elastic element in the elastic resistance adjusting device so as to change the elastic resistance moment when the power roller body rolls. The technical blank in the aspects of training intensity dynamic matching, nonlinear resistance adjustment and closed-loop feedback control provides a brand new thought for the design of intelligent fitness equipment.

The invention relates to the technical field of vehicle active suspension control systems, in particular to a vehicle roll-forward control method for an active suspension, which comprises the following steps of: constructing a roll state prediction unit, deducing a roll moment for causing roll of a vehicle body during steering of the vehicle, and predicting the roll degree of the vehicle body; constructing a control moment calculation unit, calculating the deformation resistance moment of the vehicle suspension, and determining the moment generated by the ground friction force on the vehicle chassis; a torque distribution calculation unit is constructed, and the total torque borne by the chassis during vehicle steering and the distribution proportion of the total torque between the front chassis and the rear chassis are determined; constructing a control force calculation unit, calculating active suspension target acting forces at four wheels required for realizing the front and rear suspension control moment, converting the target control moment into a target control force, and providing a specific control instruction for rear-end execution; according to the method, the roll degree of the vehicle body can be quickly predicted, the control target can be calculated in time, the control instruction is sent out before the vehicle body actually has large roll, and the stable control effect is achieved.

This invention discloses a method, system, and vehicle for adjusting body roll in crosswinds during oncoming traffic. The method acquires full-dimensional parameters and inputs them into a crosswind impact timing prediction model to predict the impact timing in advance. Based on this, it divides the adjustment into three stages: pre-tensioning, precise attitude control, and recovery, overcoming the inherent lag of existing passive feedback control's post-event intervention and achieving a leap from post-event compensation to pre-event control. The pre-tensioning stage uses a non-full pre-tensioning target value, and the recovery stage smoothly restores the vehicle according to the calibrated slope. This avoids the comfort degradation caused by existing on / off pre-adjustment technologies that apply full pre-tension throughout the entire process without a smooth recovery, effectively suppressing crosswind impact while significantly improving the driving experience. Differential adjustment of the damping / stiffness of the left and right suspensions is performed based on the bidirectional impact characteristics, overcoming the shortcomings of existing technologies that apply a one-size-fits-all approach and cannot differentiate adjustments based on the impact direction, resulting in a significant improvement in attitude control accuracy.

The invention relates to the technical field of automobile chassis tests, in particular to a torque accurate control method and device for an intelligent chassis active transverse stabilizer bar. According to the accurate torque control method, by presetting a target roll angle, multi-dimensional operation data of a vehicle and a motor are collected in real time, generation of an anti-roll torque instruction is accurately triggered, and the torque instruction is dynamically corrected in combination with a least square estimation algorithm so as to adapt to the response requirement of the roll angle of the vehicle body. And then current closed-loop control of a three-ring nested structure is utilized to realize rapid and accurate output of torque of the permanent magnet synchronous motor, excitation current and torque current are effectively decoupled, the torque response speed and control precision are greatly improved, the vehicle body roll risk can be inhibited in time, the driving stability and safety of the intelligent chassis are remarkably optimized, and the driving safety of the intelligent chassis is improved. And meanwhile, the torque control requirements under different working conditions are met, and the high anti-interference capability and the high adaptability are achieved.

The utility model relates to the technical field of retainers, and discloses a bearing retainer which is characterized in that the effect of continuous lubrication is realized by arranging a sealing cover, an oil cavity, a lubricating groove and the like, the sealing cover is opened, lubricating oil is filled into the oil cavity through a through hole, and after the oil cavity is filled with the lubricating oil, the sealing cover is used for blocking the through hole; due to the fact that the friction force drives the rolling body to rotate, when the rolling body rotates, the inner wall of the lubricating groove and the inner wall of the oil cavity are located on the same horizontal line, lubricating oil in the oil cavity flows into the lubricating groove, and due to the fact that friction can be generated between the lubricating oil and the inner ferrule, the outer ferrule and the retainer when the rolling body rolls, part of the lubricating oil can be evaporated. And by arranging the oil cavity, lubricating oil is continuously provided for the rolling body, and the continuous lubricating effect is achieved.

The present invention discloses a system and method for improving a vehicle's crosswind resistance through an active stabilizer bar. The adaptive cruise control system is used to measure the longitudinal distance, lateral distance, relative speed, and real-time speed of the vehicle and the oncoming vehicle, and calculate the time of meeting based on the relative speed and longitudinal distance between the vehicle and the oncoming vehicle; calculate the time period of meeting based on the real-time speed of the vehicle and the relative speed between the vehicle and the oncoming vehicle; calculate the torsional torque value required for the stabilizer bar during the meeting based on the relative speed, lateral distance, and maximum speed of the vehicle and the oncoming vehicle; and control the torsional torque of the stabilizer bar during the meeting process based on the meeting time, meeting time, and required torsional torque value. The present invention can automatically measure the meeting time and relative speed, adjust the relative position of the active stabilizer bar in advance, and increase the torsional stiffness preload to reduce the interference of crosswind on vehicle body roll during the meeting.

To provide a road-surface friction coefficient estimation device, a road-surface friction coefficient estimation method, and program which can accurately estimate a road-surface friction coefficient and facilitate performing control adjustment.SOLUTION: A road-surface friction coefficient estimation device comprises: a lateral acceleration calculator configured to calculate a lateral acceleration using a wheel speed detected by a wheel speed sensor mounted in a vehicle, a vehicle-body roll angular velocity detected by an angular velocity sensor mounted in the vehicle, and vehicle-body lateral velocity and yaw rate calculated from a geometrical relationship; a coordinate converter configured to convert an acceleration detected by an acceleration sensor mounted in the vehicle to a measured lateral acceleration subjected to ground coordinate conversion; and a road-surface friction coefficient estimator configured to estimate a road-surface friction coefficient by using a road-surface friction model based on the calculated lateral acceleration and the converted lateral actual measurement acceleration.SELECTED DRAWING: Figure 2

The invention relates to the technical field of picking platforms, in particular to an orchard operation platform which comprises a jacking and supporting mechanism arranged on a vehicle body and used for supporting the platform to keep a horizontal state, a nail inserting mechanism arranged on the jacking and supporting mechanism and used for firmly grasping the ground and a material collecting mechanism arranged on the jacking and supporting mechanism and used for transferring fruits from the platform. The jacking mechanism comprises a supporting assembly which is arranged on the vehicle body and used for supporting platforms with different heights, a locking assembly which is arranged on the platform and used for fastening the supporting assembly, and an operation assembly which is arranged on the platform and used for opening the locking assembly so that the platform can fall down; according to the lifting platform, platforms of different heights can be dynamically supported, the supporting position can be automatically locked, the stability of the platform is improved, the platform is prevented from toppling, the safety performance is improved, and the technical problems that the stability of the lifting platform on one side of a vehicle body is poor, the platform is inclined due to uneven stress, the vehicle body rolls over, and the safety is not high are solved.

The invention relates to the technical field of mechanical engineering, and discloses a high-rigidity compact linear module of an embedded integrated guide mechanism and a driving method of the high-rigidity compact linear module. The method is applied to the high-rigidity compact linear module of the embedded integrated guide mechanism. The method comprises the steps that the steel raceway is embedded in the aluminum alloy body to serve as a guide mechanism, and the steel sliding base makes contact with the steel raceway through the rolling body; a ball screw is driven to rotate, a ball nut of a steel sliding seat drives the steel sliding seat to move in the length direction of the aluminum alloy body, and in the moving process, a corresponding rolling body rolls along a steel raceway to achieve guiding; the steel raceway, the ball screw and the steel sliding seat are sealed in the aluminum alloy main body through the sealing structure, so that a full-sealed transmission environment is formed; a motor stator and a steel sliding seat integrated mover assembly are installed in an aluminum alloy body, a steel sliding seat is driven to move through electromagnetic force, and a steel raceway serves as a guide mechanism to operate independently. The method is suitable for high-precision and space-limited scenes.

The application discloses a UAV recovery and take-off platform, and belongs to the field of shipborne UAV cross-domain recovery equipment, which comprises an upper table assembly, a posture adjusting mechanism and a bottom base, the upper table assembly is used for bearing a UAV, the posture adjusting mechanism is connected with the upper table assembly, the bottom base can be connected on a docking platform and is connected with the posture adjusting mechanism, the posture adjusting mechanism comprises three posture adjusting arms, the upper end of each posture adjusting arm is connected with the upper table assembly, the lower end of each posture adjusting arm is slidably connected with the bottom base, a driving mechanism is arranged on each posture adjusting arm, when the driving mechanism works, the posture adjusting arm can be moved, the upper table assembly is subjected to a force by the posture adjusting arm, and the horizontal state of the upper table assembly is adjusted; the posture of the upper table assembly can be adjusted through the structural arrangement of the posture adjusting mechanism, the three-dimensional sea wave disturbance of ship body roll, pitch and yaw is decoupled, the short board of the compound wing UAV landing without power posture adjustment can be made up in a targeted manner, and the shipborne recovery stability and the limit working condition fault tolerance capability are improved.

The utility model provides a purple sand green body roller press, which belongs to the technical field of purple sand green bodies, and comprises a die cylinder and a bottom seat, the bottom of the die cylinder is provided with a butt joint block, the lower surface of the butt joint block is matched with a mounting groove, the side surface of the mounting groove is provided with the bottom seat, the lower surface of the bottom seat is connected with angle teeth in an embedded manner, and the angle teeth are matched with the butt joint block. A vertical rod is installed on the upper surface of the bottom base, a top plate is fixedly connected to the top of the vertical rod, a connecting rod is arranged on the top plate, a rolling ball is installed on the lower surface of the connecting rod in a matched mode, and a gap is reserved between the surface of the rolling ball and the inner wall face of the mold cylinder; through meshing transmission of angle teeth and straight gears, the bottom base can continuously and stably rotate, meanwhile, basic conditions are created for stable rolling of the purple sand materials, through cooperative arrangement of vertical rods, a top plate and a connecting rod, the purple sand materials are repeatedly and evenly pressed on the inner side face of the mold cylinder, and the coating effect is better.

The utility model provides a bearing structure of a scroll compressor, and relates to the technical field of bearings. The bearing inner ring is arranged in the bearing outer ring, a first groove and a second groove are formed in the bearing outer ring and the bearing inner ring respectively, a rolling body rolls between the first groove and the second groove, two sets of retainers are installed on the rolling body, the rolling body is located between the two sets of retainers, and a taking and placing hole is formed in the bearing outer ring. A clamping groove and an insertion hole are formed in the inner wall of the pick-and-place hole; when the rolling body is oiled and lubricated, an oiler is inserted into the barrel rod and applies pressure to the barrel rod, so that the oil outlet hole is ejected out of the barrel cover, lubricating oil can flow out of the oil outlet hole to the rolling body, the rotating handle is pinched and the baffle is shaken to rotate, and the lubricating oil on the rolling body can be uniformly smeared through the smearing roller. The problem of uneven distribution of lubricating oil is solved.

The invention relates to a floating type crawler chassis for complex terrains, and belongs to the technical field of crawler chassis. Comprising a main frame used for being connected with a loading vehicle body; the floating type walking chassis is in pivot connection with the main frame through a central pivot point and can make side-tipping movement relative to the main frame; the magnetic eddy current damping assembly is used for inhibiting the rolling motion, and the magnetic eddy current damping assembly comprises a magnetic field generating element connected to one of the main frame or the floating type walking chassis; and a conductive element fixed to the other one and at least partially immersed in the magnetic field generated by the magnetic field generating element. Non-contact field force damping is introduced between the main frame and the floating type walking chassis through the magnetic eddy current damping assembly. The damping force can be instantly generated only when the vehicle body rolls and generates relative motion, and the size of the damping force is in direct proportion to the roll speed. And during stable driving, no unnecessary interference force is generated.

The present invention provides an anti-rollover stabilization base and method for a pole holding group, relating to the technical field of pole holding bases, the base comprises a base body and a pole holding body, a movable frame is fixedly connected to the lower surface of the base body, a connecting ring is rotatably connected to the annular side surface of the base body, fixing rods are provided on the front and rear sides of the base body, two spiral drill bits are rotatably connected to the lower surfaces of the two fixing rods, a first motor is provided above the two fixing rods, the base body is movably sleeved with the pole holding body, and the rotation of the two pairs of spiral drill bits enables them to cut into the ground, and as the spiral drill bits continue to rotate, they gradually penetrate into the ground, relying on the interaction force between the spiral blades and the soil to stably anchor the base body to the ground, and by forming a larger friction force and anchoring force with the soil, compared with the traditional surface anchoring method, the risk of the base body rolling over is greatly reduced, and the stability and safety of the entire pole holding group are improved.

The invention discloses engineering machinery, a vehicle body roll evaluation method and device thereof and a medium, and relates to the field of vehicle control. The method comprises the steps that pressure values of suspensions on the left side and the right side of a vehicle at all axles are obtained; according to the pressure values of the suspensions on the left side and the right side, the vehicle body roll risk is evaluated. According to the embodiment, the vehicle body roll risk is evaluated based on the suspension pressure value, accurate early warning of the vehicle body roll risk is guaranteed, implementation is easy, the scheme is reliable, early warning is timely, and safety accidents can be fully avoided.

There is provided a drone comprising, a main body which is elongated and having a longitudinal axis, the main body being rotatable attached at one end of the elongated body to a propeller body with a shaft so that the main body and the propeller body are arranged to rotate in relation to each other, so that the propeller provides thrust in the direction of the shaft, where the main body rotates around its longitudinal axis, the drone comprising driving means mechanically connected to the shaft, the driving means driving rotation of the bodies in relation to each other, the drone comprising a control device arranged to control the speed of rotation of the driving means to control the thrust and further arranged to control the flight direction of the drone, where the drone is configured to rotate the propeller body at a first rotation speed that is greater than a second rotation speed of the main body in relation to an external frame of reference, the second rotation speed being referred to as roll speed, where the drone is configured such that the longitudinal axis of the main body has, during flight, an angle of attack greater than zero to the flight direction of the drone, said longitudinal axis rotating around the flight direction of the drone, the flight direction being in relation to the external frame of reference, where the rotation around the flight direction occurs with the same angular speed as the main body rolls around the longitudinal axis (roll speed), where the control device is arranged to determine the orientation of the longitudinal axis of the main body in relation to the external frame of reference with a frequency that is higher than the roll speed and adjust the thrust during a subsection of a complete revolution of the main body in relation to the external frame of reference in order to adjust the angle of attack, thereby adjusting the flight direction of the drone.

The present application relates to a kind of parallel front wheel active roll chassis, belong to vehicle chassis technical field, especially to the category of vehicle roll drive and control technology, by a group of front wheel steering roll mechanism and a group of rear wheel active roll mechanism on the same vehicle according to given wheelbase front and rear arrangement, share the same vehicle vertical plane, rear wheel track is far greater than front wheel track, through the linkage roll mode of vehicle body and wheel, rear wheel active roll mechanism controls vehicle body roll, front wheel steering roll mechanism adaptive roll, realize vehicle steering and vehicle body roll independent control, by parallel front wheel steering, adaptive roll, double rear wheel drive, active roll, form the parallel front wheel active roll chassis with positive tricycle characteristics;Small wheel track parallel front wheel steering, roll technical measures, retain the single wheel adaptive roll characteristics, have the effect of small power consumption of roll drive and control, improve the adhesion and carrying capacity of active roll positive tricycle vehicle.

The present application discloses a method for preventing the rear section from rolling over during the path tracking process of a two-section vehicle. The method takes into account the vehicle's dynamic performance and prevents the vehicle from rolling over during the path tracking process. The method comprises: establishing a front section model and a rear section model of a multi-section vehicle to ensure effective tracking of the front section and accurate tracking of the rear section; determining the driving condition through an advanced driver assistance system module based on road information acquired by a visual sensor, and determining whether the vehicle has deviated; obtaining the actual vehicle body roll angle through an unscented Kalman filter estimation module; inputting the theoretical vehicle body roll angle into a rollover condition determination module, and outputting the wheel braking force to achieve the effect of differential braking; the present invention designs a rear section trajectory error model based on a front section preview error model, and designs a rollover warning system logic flow based on a dynamic model prediction, effectively improving the vehicle driving stability and safety during the path tracking process of the two-section vehicle.

The application discloses a bogie, a regulating method and a transport vehicle. The bogie comprises a frame, a wheel pair assembly installed on the frame and used for rolling cooperation with a track, a spring, a support connected with the frame through the spring, the support and the frame having a first vertical interval, a positioning wheel assembly installed on the support and used for rolling cooperation with a track beam, a vertical limiting assembly installed on the frame or the support and located in the first vertical interval, and the vertical limiting assembly and the frame or the support having a second vertical interval. When the body roll is greater than a design value, one side of the frame is lifted, the second vertical interval is gradually reduced after the frame is lifted, and the second vertical interval is reduced to 0. When the second vertical interval is reduced to 0, the vertical limiting assembly is in abutment with the frame and the support, so that overturning of the body is prevented. When the wheel climbs upward along the track, the climbing height of the wheel rim along the track is less than the minimum height of the wheel rim under the action of the vertical limiting assembly, so that climbing of the vehicle is avoided. In addition, when the wheel rim further increases the lateral displacement along the track if the vertical limiting assembly fails, the lateral limiting assembly is used, so that derailment of the vehicle is avoided. Therefore, the two measures are used to avoid derailment of the vehicle.

This invention discloses a method, system, electronic device, and medium for controlling the roof and ground of a vehicle's semi-active suspension. The method includes: determining the roof control damping force based on the sprung vertical velocity, the unsprung vertical velocity, and the roof damping coefficient; determining the ground control damping force based on the sprung vertical velocity, the unsprung vertical velocity, and the ground damping coefficient; determining the road roughness based on the vehicle's pitch angular velocity, vehicle roll angular velocity, unsprung vertical acceleration, and unsprung vertical velocity; determining the shock absorber operating mode based on the driving mode; determining the roof and ground distribution coefficient based on the road roughness and the shock absorber operating mode; determining the target damping force based on the roof control damping force, the ground control damping force, and the roof and ground distribution coefficient; and then controlling the vehicle's vibration based on the target damping force. This invention improves the accuracy of semi-active suspension control, thereby improving vehicle ride comfort, handling stability, and driving safety, and can be applied to the field of vehicle control technology.

The invention relates to the technical field of special transport vehicles, and discloses a compartment-detachable garbage truck which comprises a frame assembly and longitudinal beams, the longitudinal beams are divided into a left longitudinal beam and a right longitudinal beam, and cross beam assemblies are connected to the longitudinal beams. Due to the fact that the third cross beam and the seventh cross beam of the hook arm system are arranged, cross beams do not need to be additionally installed at the two positions of the frame assembly to guarantee the structural strength. According to the garbage truck with the detachable carriage, under the full load condition, the gravity center is lowered by 100-300 mm, the driving stability of the whole truck is greatly improved, the truck body roll control is better during turning, and the safety is improved; a hook arm system structural member is integrated with a chassis girder to form a part of a girder structure to ensure the structural strength, repeated structural members can be omitted, and materials are saved; the mounting height of the functional part is reduced, the stress of the component is improved, the local load is reduced, the strength requirements of the component, the functional part and the hydraulic system are reduced, and the cost is saved.

The present application relates to the technical field of vehicle engineering, in particular to a kind of active suspension vehicle roll angle measurement and calculation method, by collecting vehicle body roll angular velocity, lateral acceleration and the change of four suspensions' suspension height, and according to lateral acceleration, four suspensions' suspension height change respectively calculates tire deformation and the steady-state roll angle contributed at wheel center, linearly superimposes two steady-state roll angles to obtain the steady-state roll angle of vehicle as a whole, again the vehicle roll angular velocity after filtering is integrated into transient roll angle, finally, the correction degree of steady-state roll angle to transient integral result is adjusted by weight coefficient, and the vehicle roll angle with strong real-time performance and high robustness is fused and calculated, the technical problems that the existing technology exists, such as inaccurate roll angle acquisition, large calculation deviation caused by vehicle load change and suspension nonlinear characteristics, and pure integral calculation prone to drift are solved.

The invention discloses a celadon mud embryo rolling mechanism and relates to the field of ceramic forming equipment, aiming to solve the problems of low demolding efficiency, high green body damage rate and poor adaptability of traditional demolding. The mechanism comprises a cylinder, a piston, a trigger mechanism, a mounting seat, a detachable mold disc and a central shaft pipe and other components. The trigger mechanism separates to form double air chambers, and the central shaft pipe is matched with the ball linkage to switch the thick and thin rod sections, so as to realize the accurate regulation and control of air path on-off and flow, complete the stage demolding of "blowing loose - uniform speed ejection - rapid lifting", and realize the automatic opening and closing of the air path by the weight of the mold disc. The initial reserved redundant distance between the central shaft pipe and the push rod ensures the process connection. The mechanism does not need electric control, is convenient to operate and reliable to run, is suitable for batch production, can greatly reduce the damage of the green body, and improves the production efficiency and product qualification rate of celadon.

The utility model discloses a batch type eight-connection pipe cover buckling auxiliary device. Comprising a base body, a connecting pipe hanging flat belt, a feeding driving unit, a turning cover pre-pressing unit and a cover body pressing unit. The cover body pressing unit comprises a pressing wheel which is in rolling contact with the cover body; hanging holes are uniformly arrayed in the surface of the connecting pipe hanging flat belt; the multi-hole belt type transmission assembly is adopted, a large amount of pre-assembling under the high-frequency cover buckling working condition is achieved, the time for waiting for assembling and placing of operators is saved, the cover overturning pre-pressing unit and the cover body pressing unit are additionally arranged subsequently, pipe cover buckling of the eight-connecting-pipe is achieved, manual cover buckling operation is omitted through an automatic method, and the working efficiency is improved. By additionally arranging the advancing synchronizing assembly, the effects of supporting the lower ends of the eight connecting pipes and synchronously advancing are achieved, and the technical defects that due to the flexibility characteristic of a connecting pipe hanging flat belt, when the pressing wheel presses downwards, the connecting pipe hanging flat belt is bent, the pressure is buffered, and a buckling cover is not tight are overcome.

Method for roll stabilization of a motor vehicle by means of an adjustable roll stabilizer (1), comprising an actuator (2) which can be controlled depending on vehicle parameters in order to rotate two connected stabilizer sections (6a, 6b) relative to each other about an axis of rotation (3), wherein the stabilizer sections (6a, 6b) are each coupled to a wheel suspension (7a, 7b, 8a, 8b, 9a, 9b) radially from the axis of rotation (3), wherein vertical acceleration signals (a7a, a7b) of individual wheels (7a, 7b) are taken into account for the control of the actuator (2), characterized in that, in the presence of a signal for a roll acceleration of the vehicle body (10), the compression velocity (v(rel)) of a wheel (7a, 7b) is directly calculated from the roll acceleration of the vehicle body (10). and the wheel acceleration (a7a, a7b) is determined.

This invention discloses a suspension device and a vehicle. The suspension device includes a lower control arm, an elastic element, a hydraulic shock absorber, a connecting structure, an anti-roll structure, and an over-protection structure. The elastic element achieves multi-stage damping through a main spring, a secondary spring, and a limiting component. The hydraulic shock absorber dynamically dissipates vibration energy using oil damping and speed and pressure adjustment components. The connecting structure connects the lower control arm to the transmission system via a ball joint, ensuring coordinated movement and power transmission. The anti-roll structure suppresses body roll through anti-roll bars and arms, improving handling stability. The over-protection structure constrains suspension displacement with a limiting band, protecting critical components. When this suspension device is used in an electric vehicle, ride smoothness is significantly improved, vibration transmission is reduced, and ride comfort is enhanced. Anti-roll performance and lateral movement coordination improve handling precision. The component protection mechanism extends service life, resulting in superior durability and reliability. Safety assurance under extreme conditions reduces the risk of rollover. The device is adaptable to various road conditions and has strong versatility.

Method for roll stabilization of a vehicle body, wherein the body has four wheel suspensions, each with a vibration damper, wherein the vibration dampers are arranged between the body and a wheel suspension movably mounted relative to the body, wherein the vibration dampers are designed such that a damping force is adjustable for each vibration damper, wherein two front vibration dampers are arranged on opposite sides of a front section of the body, wherein two rear vibration dampers are arranged on opposite sides of a rear section of the body, wherein a first roll velocity is determined for a front section of the body and a second roll velocity is determined for a rear section of the body, wherein, depending on the two measured roll velocities, a damping force for at least one vibration damper is adjusted in such a way as to counteract a roll movement of the body. characterized by the fact that The damping force for an in-phase oscillation of the front and rear sections of the body is determined.

The utility model relates to the technical field of automobile parts, and discloses a novel automobile anti-roll bar damper which comprises a damping cylinder barrel, and a damping piston is assembled in the damping cylinder barrel in a sliding mode. According to the novel automobile anti-roll bar damper, through a ball screw pair composed of the adjusting knob and the lead screw, the lead screw can be driven to drive the adjusting piston to axially move in the damping cylinder barrel by rotating the adjusting knob, and the sectional area of a fluid channel in the double-cavity damping structure can be accurately changed through the design; the effective flow area of the damping hole is reduced, the flow resistance of a damping medium (such as hydraulic oil) is increased, and the damping force is enhanced; compared with a traditional fixed damping structure, damping parameters can be adjusted in real time according to the vehicle load, the road condition and the driving style, so that the vehicle provides strong damping to restrain side tipping when turning at a high speed, weak damping is switched on a bumpy road section to improve comfort, and the dynamic performance of the vehicle is remarkably improved.

The application provides an integrated control method for active suspension and differential steering of a distributed drive unmanned vehicle, which realizes trajectory tracking of the unmanned vehicle through differential steering, realizes vehicle body roll during steering through active suspension, improves the speed of the unmanned vehicle during cornering, and improves the steering stability. First, a dynamic model of the unmanned vehicle including differential steering and active suspension is established, a reference model is established to obtain a reference yaw rate and a reference vehicle body roll angle, a single-point preview driver model based on fractional calculus theory is designed to obtain a reference front wheel steering angle required by the reference model, and an H ∞ A robust controller controls the yaw rate and the vehicle body roll angle of the differential steering unmanned vehicle to track the reference values, and differential torques and control forces of left and right active suspensions are obtained. The results show that the integrated control method can make the differential steering unmanned vehicle realize trajectory tracking and vehicle body posture control.