674 results about "Kingpin" patented technology

The invention relates to a system friction torque estimation method and device, a steer-by-wire system and a vehicle. The estimation method is applied to the steer-by-wire system, the steer-by-wire system comprises a steering execution module, a rack of the steering execution module is hinged to a steering tie rod, the other end of the steering tie rod is hinged to a steering knuckle arm, the steering knuckle arm is fixedly connected with a tire, and the rack pulls the steering tie rod to reciprocate so as to drive the steering knuckle arm and the tire to rotate around a main pin. The estimation method comprises the following steps: observing through a sliding-mode observer to obtain an estimated value of the lateral force of the front axle; obtaining a function relationship between the lateral force of the front axle and the moment Mkp of the main pin; the estimated rack force is obtained on the basis of Mkp = Frack, the function relation between the front axle lateral force and the master pin moment Mkp and the estimated value of the front axle lateral force, Frack is the rack force, and rack is the length of a steering knuckle arm; and obtaining an estimated system friction torque based on the estimated rack force and the system friction torque-rack force function model.

“THREE-DIMENSIONAL MONITORING SYSTEM FOR KINGPIN ON FIFTH WHEEL” describes an invention patent, for a monitoring system of Kingpin / Fifth Wheel articulation presented on trucks, with a great applicability for autonomous steering systems and vehicle dynamics control. This system allows the precise monitoring of translational, rotational movements and the relative accelerations of the king pin (5) in relation to the fifth wheel (3) on the X, Y and Z axes, totaling measurements in six degrees of freedom. The present patent presents two ways to make this monitoring of the three-dimensional position of the kingpin (5): The first through a set of sensors (6) accelerometers and gyroscope integrated to an electromagnet (4) that when electrified, is coupled to the king pin (5) by magnetic attraction. The second mode through a reference device (20) that is magnetic, identifiable, independent and easy to apply to the kingpin (4).

A fifth-wheel coupling arrangement includes, a plurality of wear sensors, a fifth-wheel coupling plate, a lock claw mounted on the fifth-wheel coupling plate configured to be movable in a first closing direction, a locking mechanism, with a stop, configured to be mounted on the fifth-wheel coupling plate configured to be movable in a second closing direction, wherein the fifth-wheel coupling plate has an insertion opening for a king pin, wherein the lock claw positively prevents the king pin from moving out of the insertion opening in a closed state of the fifth-wheel coupling arrangement and allows the king pin to move out of the insertion opening in an open state of the fifth-wheel coupling arrangement, wherein the wear sensor is configured to monitor a wear parameter of the fifth-wheel coupling arrangement, and wherein the wear sensor has a data output.

The invention is suitable for the technical field of automobile chassis, and provides an angle module system and a modular extensible chassis, and the angle module system adopts an unequal-length double-wishbone suspension and has good geometric kinematics characteristics. And the offset distance of the main pin is reasonably controlled through the design of steering knuckle parts. By adopting the angle module bracket, the efficient integration of the driving unit and the frame structure is realized, the number of connecting points of the angle module system and the chassis is reduced, and the serialization, integration and modularization of the chassis system are facilitated. A distributed main pin steering gear is adopted, and the geometrical shape design of upper and lower control arms of the suspension is matched, so that wheels have a larger turning angle range, and the maneuverability is improved. In addition, the modular extensible chassis adopts modular design, and the number of shafts can be flexibly configured according to carrying requirements.

The invention relates to a driverless transport vehicle for moving a semi-trailer. The driverless transport vehicle comprises a coupling device for automatically coupling the driverless transport vehicle to a kingpin of the semi-trailer. The invention also relates to a method for moving a semi-trailer using a driverless transport vehicle.

The utility model relates to the technical field of automobile accessories, in particular to an automobile steering knuckle which comprises a steering knuckle body, the steering knuckle body is provided with a hub disc mounting shaft, two brake arms, a damping arm, a steering arm and a master pin arm, the hub disc mounting shaft is arranged at one end of the steering knuckle body and is perpendicular to the end face of the steering knuckle body, and the two brake arms are arranged on the two brake arms. The brake arm, the damping arm, the steering arm and the main pin arm are all arranged in the circumferential direction of the steering knuckle body, the damping arm and the main pin arm are each provided with a partition groove, a connecting hole and a tightening hole, the tightening holes extend from the two side walls of the partition groove in the opposite directions, and the connecting hole penetrates through the middle section of the partition groove; the connecting hole is divided into two parts through the partition groove, the minimum radial size of the connecting hole is variable, and the advantage of better universality is achieved.

The invention provides a suspension assembly, a chassis and a vehicle. The suspension assembly includes a link including at least a first swing arm and a second swing arm, the first swing arm being a linear drive member, the first swing arm being connected to a wheel of the vehicle. The second swing arm is a linear driving component and is connected to the same wheel corresponding to the first swing arm. The first swing arm and the second swing arm are spaced in the height direction of the vehicle. According to the suspension assembly, the wheel kingpin inclination angle can be adjusted, the wheels can be driven to steer, multi-vector adjustment can be achieved, and the functions are rich.

The invention discloses a commercial vehicle braking deviation optimization method and system, and the method comprises the steps: building a rigid body suspension steering system multi-body dynamic model and a flexible body suspension steering system multi-body dynamic model according to vehicle suspension steering parameters, and building reference points at knuckle arm points and main pin points of the models; setting a plurality of basic working conditions according to the size of the load, and enabling the rigid body suspension steering system multi-body dynamic model and the flexible body suspension steering system multi-body dynamic model to respectively simulate and run the plurality of basic working conditions; extracting the turning angle variable quantity of the wheel, the track of the knuckle arm point and the track of the kingpin point in the simulation process, and respectively calculating the turning angle variable quantity and the point position interference quantity caused by each influence factor according to a set rule; and on the basis of the rotation angle variable quantity and the point position interference quantity, the contribution proportion of each influence factor is obtained, and part arrangement is optimized according to the point position interference quantity so as to reduce the braking deviation quantity.

A fifth-wheel load measurement system for sensing unbalanced loads between a prime mover and a trailer comprising: a body; a king pin adapted for coupling to a fifth wheel; and at least two sensors configured for measuring relative motion of the body in response to a force applied through the king pin.

The present invention discloses a method for suppressing shimmy in a dual-winding, wire-controlled kingpin steer system. The method comprises: establishing mathematical models of a four-wheel independent steering vehicle and a dual-winding kingpin steer system; subtracting the real-time yaw angular velocity of the vehicle body from the actual yaw angular velocity to obtain body shimmy data; calculating four different wheel angle values ​​in the wire-controlled kingpin steer system for suppressing body shimmy; calculating current control signals for the first set of windings of different dual-winding permanent magnet synchronous motors in the wire-controlled kingpin steer system; calculating current control signals for the second set of windings of the dual-winding permanent magnet synchronous motors; and applying the different winding current control signals to the dual-winding permanent magnet synchronous motors to achieve shimmy suppression control of the dual-winding, wire-controlled kingpin steer system. The method effectively suppresses the coupling of body and wheel-end shimmy through decoupling control between different windings, improving the efficiency of vehicle coupled shimmy suppression and enhancing the anti-interference capability and robustness of wheel angle tracking.

The invention discloses a drive-by-wire hydraulic steering braking system and method, and relates to the field of vehicle chassis. The drive-by-wire hydraulic controller obtains a control instruction of the vehicle control unit and controls the steering valve group to adjust the angular velocity and deflect at a target steering angle according to the control instruction so as to perform movement in different steering modes; the kingpin angle sensor obtains the actual steering angle and the actual angular speed of the mechanical vehicle and feeds back the actual steering angle and the actual angular speed to the drive-by-wire hydraulic controller; the drive-by-wire hydraulic controller obtains a steering angle difference value according to the steering angle and a target steering angle, obtains an angular velocity difference value according to an actual angular velocity and a target angular velocity, and controls a steering valve group to adjust the steering angle and the angular velocity according to the steering angle difference value and the angular velocity difference value by adopting a PID control method; and the brake valve group brakes according to the brake instruction. The steering requirements of various types of vehicles can be met, and the safety redundancy is high.

The invention discloses a dual steering module integrating active camber and active toe-in functions and a control method thereof. The module comprises a wheel assembly, a first steering system, a second steering system and a suspension system. The double steering systems of the module are independent steering systems and have different kingpin positioning parameters, and decoupling control over wheel camber, wheel toe-in and a vehicle target turning angle can be achieved through relative rotation of the two steering systems. A master pin of the first steering system is perpendicular to a wheel grounding point, the toe-in angle of a wheel can be independently adjusted, the master pin can serve as a redundant backup of the second steering system, and the driving safety of the vehicle is improved. The second steering system serves as a main steering system, has reasonable main pin positioning parameters and can be matched with the first steering system to achieve camber angle adjustment of wheels. According to the module, active adjustment of the camber angle and the toe-in of the wheel can be achieved only through two sets of steering systems, and the control boundary of the vehicle is effectively expanded.

The invention relates to a wheel side speed reduction driving integrated assembly coupling kingpin steering and steering trapezoid, and relates to the technical field of automobile wheel side driving suspension assembly angle modules. A wheel-side speed reduction driving integrated assembly coupling kingpin steering and a steering trapezoid comprises a driving motor, a wheel-side speed reducer and a steering knuckle, the upper end and the lower end of the steering knuckle are rotationally connected with an upper control arm and a lower control arm respectively, and the upper end of the steering knuckle is connected with a kingpin steering mechanism. The upper control arm is connected to the kingpin steering mechanism, the kingpin steering mechanism drives the steering knuckle to rotate around the axis of a kingpin, a vertical connecting rod is connected to the upper portion of the lower control arm, the upper end of the vertical connecting rod extends in the longitudinal direction of a vehicle to form a proportional connecting rod, and a spring shock absorber is hinged to the end of the proportional connecting rod. And the middle part of the proportional connecting rod is connected with the vehicle body. The large-angle steering device has the advantages that space layout optimization is achieved, motion interference among all components is avoided, and the large-angle steering effect can be achieved.

The invention relates to a method for the autonomous control of a braking system of a trailer of a semi-trailer truck, in which a force (F_hor) acting on a kingpin (16) of the trailer is determined, and a braking signal for setting a braking force in the trailer is derived based on this force. The braking force is set such that the deceleration of the trailer resulting from the braking force corresponds to a quotient of the horizontal force (F_hor) acting on the kingpin and a vertical load (F_vert) acting on a fifth wheel plate (15) of a fifth wheel coupling.

The invention relates to vehicle equipment, in particular to a steering and suspension integrated electric vehicle angle module which comprises a driving system, a braking system, a steering system, a traveling system and a suspension system, the driving system comprises a hub motor and a hub motor driver, and the braking system comprises a braking module and a braking resistor. The brake module controls the wheel hub motor to brake, the steering system comprises a steering motor, a steering motor driver, a steering speed reducing mechanism and a steering knuckle, the steering motor rotates to drive the steering knuckle to rotate, the wheel hub motor is connected to the steering knuckle, and the steering motor driver drives the steering speed reducing mechanism to rotate. The suspension system comprises a shock absorber, a spring, a main pin cylinder, a sleeve, a shock absorber upper mounting seat and a shock absorber lower mounting seat, and an output shaft of the steering speed reducing mechanism is connected with the shock absorber lower mounting seat and the main pin cylinder. The steering and suspension integrated electric vehicle angle module is higher in integration level, simpler in structure and higher in flexibility.

A fifth wheel system includes a fifth wheel configured to couple to a kingpin of a towed trailer. The fifth wheel includes a jaw configured to engage the kingpin, a wedge movable from an unlocked position to a locked position to urge the jaw into engagement with the kingpin, and a stop rod that sets a travel distance the wedge moves between the unlocked position and the locked position. An actuator adjusts position of the stop rod to thereby adjust the travel distance.

The invention discloses a high-voltage lithium battery cross-country telescopic arm type forklift which comprises a chassis driving part, a front driving steering axle and a rear driving steering axle, wherein the chassis driving part comprises a reduction gearbox, a traction motor is directly mounted on the front driving steering axle, and the rear driving steering axle is connected with an output flange at the lower end of the reduction gearbox through a transmission shaft; the front drive steering axle and the rear drive steering axle are both steering drive axles, an electric push rod can drive a clutch to achieve four-wheel-drive and two-wheel-drive function switching, steering of the front drive steering axle and the rear drive steering axle can be independently controlled, three modes of independent front wheel steering, crab-shaped steering and four-wheel concentric steering are achieved, and a steering kingpin-mounted angle sensor monitors the steering angle of wheels. According to the invention, the chassis driving part adopts the front driving steering axle and the rear driving steering axle which are integrated with the reduction gearbox, the traction motor is directly connected with the front axle and the reduction gearbox, and power transmission is realized through the transmission shaft. Meanwhile, the electric push rod controls the clutch, the four-wheel drive mode and the two-wheel drive mode can be rapidly switched, and the power requirements under different working conditions are met.

A trailer having an adjustable form factor is provided. The trailer includes a first box portion defining a first space and a second box portion defining a second space, wherein the first box portion is attached to the second box portion and configured to at least partially move into the second space to adjust a length of the trailer. The trailer further includes a kingpin attached to the first box portion and configured to engage a fifth wheel coupling of a vehicle and a wheel assembly attached to the second box portion.

The invention discloses an agricultural machinery steering axle tube beam formed by a seamless steel tube and a manufacturing method thereof, and relates to the technical field of engineering machinery parts, the agricultural machinery steering axle tube beam is of a symmetrical variable cross-section variable wall thickness hollow rectangular structure, is composed of a tube beam middle part, a tube beam neck part and tube beam two ends, and is in an inverted convex shape with a flush upper surface, consistent width and a raised middle lower part. The middle size of the tubular beam meets performance requirements and oil cylinder support mounting requirements, and a round hole for mounting a supporting bearing seat is formed in the tubular beam; the lower surfaces of the two ends of the tubular beam are higher, and arc-shaped grooves welded with main pin seats are formed in the outer sides; the upper surface and the width of the neck of the tubular beam are unchanged, and the lower surface gradually rises through two transition arcs and is connected with the middle of the tubular beam and the two ends of the tubular beam respectively. The pipe beam is manufactured by heating, reducing, bending, pressing and machining a seamless steel pipe, the impact resistance of a product is good, the weight is reduced by more than 15% compared with that of a welding structure, the material utilization rate reaches 95%, and the universality is high.

An over actuated system capable of controlling wheel parameters, such as speed (e.g., by torque and braking), steering angles, caster angles, camber angles, and toe angles, of wheels in an associated vehicle. The system may determine the associated vehicle is in a rollover state and adjust wheel parameters to prevent vehicle rollover. Additionally, the system may determine a driving state and dynamically adjust wheel parameters to optimize driving, including, for example, cornering and parking. Such a system may also dynamically detect wheel misalignment and provide alignment and / or corrective driving solutions. Further, by utilizing degenerate solutions for driving, the system may also estimate tire-surface parameterization data for various road surfaces and make such estimates available for other vehicles via a network.

The present invention relates to a kingpin (1) for a semitrailer of a semi-trailer vehicle, which extends substantially along a longitudinal axis (X), with at least one wear detection means arranged in the kingpin (1) perpendicular to the longitudinal axis (X) such that wear of the kingpin (1) perpendicular to the longitudinal axis (X) can be detected optically and / or by sensors. The kingpin (1) is characterized in that the wear detection means comprises: • at least one wear element (11c, 12c) which is arranged in and / or on the kingpin (1) perpendicular to the longitudinal axis (X) such that wear of the kingpin (1) perpendicular to the longitudinal axis (X) equally wears the wear element (11c; 12c), wherein the wear element (11c, 12c) is arranged in the circumferential direction (U) at least partially, preferably completely, around the kingpin (1) • at least one cavity (11a, 11b, 12a, 12b, 14c) which extends in the circumferential direction (U) corresponding to the wear element (11c, 12c), wherein the cavity (11a, 11b, 12a, 12b, 14c) is closed fluid-tight by the wear element (11c, 12c), preferably perpendicular to the longitudinal axis (X), wherein the cavity (11a, 11b, 12a, 12b, 14c) contains a fluid at overpressure, and • at least one pressure sensor (16) which is designed to detect the pressure of the fluid in the cavity (11a, 11b, 12a, 12b, 14c), wherein the wear element (11c, 12c) is dimensioned perpendicular to the longitudinal axis (X) in such a way that the fluid can escape through a through-opening of the wear element (11c, 12c) created due to wear when a wear limit of the kingpin (1) is reached at this point on the kingpin (1).

Method (1000) for loading a trailer comprising: providing (1100) a trailer having at least two axles connected to a trailer chassis by independently adjustable suspension systems, the at least two axles including a frontmost axle and a rearmost axle, the trailer further comprising a kingpin configured to be removably connected to a fifth wheel of a tractor; a first loading step (1400) comprising loading the trailer until a threshold load is reached on the kingpin; and then a second loading step (1500) comprising: loading (1510) the trailer further; and adjusting (1520) a suspension parameter of the rearmost axle to ensure that the load on the kingpin remains at or below the threshold load.

The invention discloses a vehicle chassis comprehensive detection system and method based on a visual detection method. The system comprises a Bluetooth sensor and a signal receiver to realize wheel positioning, an inclination angle sensor and a weight measuring instrument compensate angle inclination and center-of-gravity shift caused by ground inclination, parameters of a wheel toe-in angle, a camber angle, a kingpin inclination angle and a kingpin caster angle in a static state of a vehicle are visually detected, and accurate wheel positioning parameters are obtained after correction and compensation. The system does not need frame type shooting, wheel positioning measurement can be independently completed, the system structure is simple, the equipment cost is remarkably reduced, complex environmental factors such as uneven ground and dynamic inclination of a vehicle can be effectively handled, a stable and accurate positioning solution is provided, and the system is widely applied to positioning of most wheels.

The invention discloses an electronic wedge brake system of a sprung actuator. An angle module part, a vibration reduction system, an electronic wedge brake system, a wheel unit and a steering system are integrated. The system executes braking work completely through a mechanical and electrical integration device, compared with an electro-hydraulic braking system, a hydraulic pipeline device is omitted, and the system has the advantages of being few in structural parts and high in response speed; compared with an existing electronic mechanical braking system, the scheme of the sprung actuator is adopted in the system, the braking execution motor and the planetary gear reducer are installed on the angle module supporting arm, braking torque is transmitted to the electronic wedge-shaped braking device through the universal transmission device, and the electronic wedge-shaped braking device is made to complete service braking work. And meanwhile, the electronic wedge-shaped braking device is arranged on the virtual main pin axis, and the problem that braking torque transmission is unstable under the steering working condition can be effectively solved. According to the system, unsprung mass can be effectively reduced, the driving operation stability is improved, the wheel side space is saved, and the arrangement problem of all systems of a distributed driving wheel side is solved.

1. Name of the product of this design: Electronic device with a four-wheel alignment system graphical user interface. 2. Purpose of this design: For an electronic device. 3. Key points of this design: The graphical user interface design on the screen. 4. The picture or photo that best illustrates the key points of the design: The main view. 5. The electronic device of this design is of conventional design, and other views are omitted. 6. Purpose of the graphical user interface: The interface is used for the four-wheel alignment test of the car. 7. Description of the changing states of the graphical user interface: The main view is the main interface for opening the software. Interface change state Figure 1 is the vehicle model selection interface displayed after clicking the "Alignment check" icon in the main view; Interface change state Figure 2 is the target monitoring interface displayed after clicking any option in the vehicle model list in interface change state Figure 1; Interface change state Figure 3 is the kingpin test interface displayed after clicking the "F7" steering wheel icon in interface change state Figure 2; Interface change state Figure 4 is the roll compensation interface displayed after clicking the "F6" tire icon in interface change state Figure 3; Interface change state Figure 5 is the automatic jump to the tire toe-in and camber data information interface after completing the calibration in interface change state Figure 4; Interface change state Figure 6 is the print result interface displayed after clicking the "F8" print icon in interface change state Figure 5.

The invention relates to the technical field of automobile part detection, in particular to a pedal assembly automatic detection tool which comprises a rack, a bottom plate is fixedly mounted on the rack, a supporting plate is fixedly mounted on the bottom plate, a backup plate is movably mounted on the supporting plate, main pin seats and auxiliary pin seats are arranged on the backup plate, and pressing mechanisms are arranged between the main pin seats and the auxiliary pin seats. A swinging assembly is further arranged on the backup plate, an opening is formed in the bottom plate, upper contour mechanisms are installed on the two sides of the opening, a lower contour mechanism is fixedly installed below the opening, a face contour mechanism is further installed on one side of each upper contour mechanism, and a shaking quantity mechanism is arranged in the opening. The pedal assembly is installed in the automatic detection tool, the pressing mechanism is used for pressing the pedal base face, the swing assembly moves the pedal arm from the lower contour to the upper contour, a force curve is generated through the contour mechanisms and the displacement sensor, all parts of the pedal assembly can be detected on the whole, and the detection range is more comprehensive.

The invention provides a drive-by-wire angle module with a 90-degree steering function and a chassis with the drive-by-wire angle module. The drive-by-wire angle module comprises a wheel assembly, an upper control arm assembly, an upper control arm fixing seat, a pipeline harness assembly, a steering motor assembly, a lower control arm assembly, a spring shock absorber assembly and a main pin bogie assembly. One end of the upper control arm assembly is connected with the upper control arm fixing seat, and the other end of the upper control arm assembly is connected with a vehicle body or a frame; one end of the lower control arm assembly is movably connected with the lower end of the main pin bogie assembly through the multi-direction rotating connecting assembly, and the other end of the lower control arm assembly is connected with a vehicle body or a vehicle frame. One end of the spring shock absorber assembly is connected to the lower control arm assembly, and the other end of the spring shock absorber assembly is connected to a vehicle body or a vehicle frame. According to the drive-by-wire angle module with the 90-degree steering function and the chassis with the angle module, a driving system, a steering system, a suspension system, a braking system and the like are integrated, and on the basis of achieving the functions of in-situ turning, transverse moving, oblique moving and normal running, the problem of pipeline harness arrangement can be well solved.

The steering structure comprises a steering knuckle, a main pin, a driving assembly and a transmission assembly, and the steering knuckle is used for being fixed to a hub; one end of the main pin is fixed with the steering knuckle, and the other end is a suspension system connecting end and is rotationally connected with a suspension system; the driving assembly is fixed on the steering knuckle; one end of the transmission assembly is fixed with the main pin, and the other end of the transmission assembly is connected with the output end of the driving assembly; when the driving assembly drives the transmission assembly to conduct transmission, the transmission assembly drives the steering knuckle to rotate with the central axis of the main pin as the rotation center. According to the steering structure, the driving assembly and the transmission assembly are integrated on the steering knuckle, the occupied space of the steering structure is reduced, when the driving assembly drives the transmission assembly to rotate, the transmission assembly can drive the steering knuckle to rotate with the central axis of the main pin as the rotation center, and at the moment, the steering knuckle can drive the hub and the wheel to achieve large-angle rotation.

The invention discloses an unmanned engineering machinery steer-by-wire system and a control method in the technical field of vehicle chassis and steering systems. The unmanned engineering machinery steer-by-wire system comprises four wheels and steering modules, wherein the steering modules are in one-to-one correspondence with the four wheels, are completely independent and have the same structure; the corner deflection of the four wheels is cooperatively controlled through a distributed electronic control system; and each wheel is driven by a hub motor. Through four-wheel steering, the minimum turning radius can be 0 m, the trafficability in narrow roadways, sidewalks and obstacle dense areas is improved, meanwhile, four-wheel steering is independently controlled, special movement forms such as transverse translation and oblique advancing are supported, and the four-wheel steering robot is particularly suitable for high-precision operation requirements such as urban road edge stone attaching and sweeping; four-wheel independent main pin steering is combined with a hub motor and distributed redundancy control, so that the reliability, the function safety and the maintainability of the system are remarkably improved, and the system is particularly suitable for unmanned engineering machinery to work for a long time in narrow, complex and severe environments.

The utility model discloses a Macpherson front suspension structure, which belongs to the technical field of automobile chassis platforms and comprises a steering gear assembly, a shock absorber assembly, a tire assembly, a lower swing arm assembly, a front axle adapter welding component and a drum brake assembly. By means of the mode, the shock absorber assembly and the drum brake assembly are compact in structure in the width direction, small in occupied space and capable of being suitable for a front McPherson suspension of a width-limited vehicle, the shock absorber assembly and a ball pin of the lower swing arm assembly are located on the same line, the center line of a suspension main pin coincides with the rotation center line of the shock absorber assembly, and therefore the shock absorber assembly and the drum brake assembly are not prone to deformation. The resistance moment received by the shock absorber assembly in the rotating process is reduced, the service life of the shock absorber assembly is prolonged, the outer diameter of the drum brake assembly is smaller than that of a disc brake, and the drum brake assembly can be more suitable for small vehicles.