55 results about "Toe" patented technology

The present invention provides a tire capable of suppressing uneven wear such as heel-toe wear. A tire has a tread portion (2). The tread portion (2) includes: a first shoulder land portion (11) including a first tread end (T1) and a first shoulder circumferential groove (6) adjacent to the first shoulder land portion (11) on the axially inner side of the tire and extending continuously in the tire circumferential direction. A plurality of first shoulder transverse grooves (16) are provided on the first shoulder land portion (11), extending from the first shoulder circumferential grooves (6) and traversing the first tread end (T1). The first shoulder transverse grooves (16) have a pair of first groove walls (17). A pair of first chamfered portions (18) are provided on the pair of first groove walls (17), extending from the first shoulder circumferential grooves (6) to a position beyond the first tread end (T1).

System and method for a computer vision technique for contactless measurement of vehicle toe are disclosed herein. The method includes capturing with a stereo camera an image containing a vehicle's wheel, segmenting the image, determining a suitable circular component of the wheel and computing the angle of the wheel relative to the camera and, subsequently, to the body of the vehicle. The method includes repeating the process for a plurality of wheels and computing the toe angle of the vehicle based on the obtained results.

The utility model relates to the technical field of toe guard strength testing equipment, and discloses elevator toe guard impact strength testing equipment, which comprises a supporting seat, a bearing plate and a strength tester main body, a rubber bump is fixedly arranged at the upper end of a shock pad, a buffer spring is fixedly arranged between a reinforcing frame and the bottom of the supporting seat, and the bearing plate is fixedly arranged on the supporting seat. According to the strength tester, the reinforcing frame is arranged at the bottom of the supporting seat, meanwhile, the shock pad is arranged between the supporting seat and the bearing plate, and the rubber convex blocks are uniformly distributed on the shock pad, so that part of vibration energy can be further effectively absorbed and dispersed; and finally, a screw block moves back and forth along the inner wall of a sliding rail, and meanwhile, a strength tester main body on a mounting seat is driven to horizontally move in the other direction, so that the strength tester main body can carry out strength testing on different parts of the toe guard, and the accuracy of detection data is improved.

The application provides a vehicle suspension adjustment control method, a vehicle suspension adjustment control system and a vehicle. The vehicle suspension adjustment control method comprises the following steps: obtaining a matching interval of toe angle and camber angle of a vehicle configured in advance, and a priority corresponding to the matching interval, the priority comprising a highest priority, a lowest priority and a plurality of intermediate priorities between the highest priority and the lowest priority; adjusting the toe angle and the camber angle according to the matching interval corresponding to the highest priority; if the toe angle and the camber angle cannot be adjusted to the matching interval corresponding to the highest priority, adjusting the toe angle and the camber angle according to the matching interval corresponding to the next priority of the highest priority; if the toe angle and the camber angle cannot be adjusted to the matching interval corresponding to the next priority of the highest priority, the priorities are sequentially deduced from high to low. According to the matching interval and the priority, the toe angle and the camber angle of the vehicle can be automatically adjusted, and the toe angle and the camber angle can be reasonably matched as much as possible, so that the performance of the vehicle can be improved.

The invention relates to the field of vehicles, in particular to a vehicle toe-in angle and camber angle adjusting method and related equipment. The method comprises the following steps: determining a first control arm and a second control arm from a plurality of candidate control arms; wherein the candidate control arm is used for adjusting a camber angle and a toe-in angle of a wheel; the adjusting slope of the first control arm is a positive value, the adjusting slope of the second control arm is a negative value, and the adjusting slope is the ratio of a camber angle change value caused by the length change of the control arms to a toe-in angle change value; measuring a toe-in angle value and a camber angle value of the wheel; establishing a coordinate system by taking the toe angle as a horizontal coordinate and the camber angle as a vertical coordinate, and dividing the coordinate system into a plurality of adjustment areas according to the adjustment slope of the first control arm and the adjustment slope of the second control arm; and adjusting the toe-in angle and the camber angle of the wheel by adjusting the first control arm and / or the second control arm according to the adjusting areas of the toe-in angle value and the camber angle value in the coordinate system.

The utility model relates to the technical field of whole truck testing, and discloses a floating disc for truck positioning testing. Comprising a floating plate, and multiple sets of fixing supports are arranged below the floating plate; through the X-direction floating base, the Y-direction floating base with the sliding device and the floating plate with the Z-direction rotating support, the front axle, toe-in or camber angle adjustment is not affected by stress, the detection precision is ensured, and when the floating disc is not affected by stress in the adjustment process, the front axle, toe-in or camber angle adjustment is not affected by stress, and the detection precision is ensured. The actual state of the front axle, the toe-in or the camber angle of the truck can be reflected more accurately, so that technicians can know the performance of a suspension system and a steering system of the truck more accurately, and more targeted adjustment and optimization can be carried out.

The utility model relates to a steering system (1) of a motor vehicle, in which a linear steering actuator (5) is hinged on a pair of steerable wheels (71, 72) of an axle (4) through two toe-in pull rods (61, 62) which are rigidly coupled along a control direction, in which a first wheel (71) is steered by a first toe-in pull rod (61) through movement along the control direction (B), and a second wheel (72) is steered by a second toe-in pull rod (62) through movement along the control direction (B). The second wheel (72) is steered by a second toe-in tie rod (62) by a movement in the actuation direction (B), the length of at least one toe-in tie rod (61, 62) being adjusted by means of a toe-in actuator (8) integrated into the toe-in tie rod (61, 62). In order to realize toe-in adjustment with lower cost and lower weight, the utility model provides that in order to carry out toe-in adjustment, a first wheel (71) is directly adjusted through a steering actuator (5), and a second wheel (72) is adjusted through the sum of the adjustment of the steering actuator (5) and the adjustment of a toe-in actuator (8) integrated into a second toe-in pull rod (62).

1. The name of the design product: eccentric rubber sleeve (automobile chassis). 2. The use of the design product: the design product is used to change the automobile swing arm by adjusting the eccentric cam in the rubber sleeve, so as to push the wheel to realize the change of the wheel camber angle or toe angle and other geometric angles. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: combination state diagram 1.

This invention relates to the field of steer-by-wire technology, and more particularly to a steer-by-wire control method and redundant braking device compatible with braking function. The control method includes the following steps: S1: Obtain vehicle current operating status information and braking demand information. S2: If the longitudinal braking force provided by the failed wheel does not meet the braking expectation. S3: Obtain the lateral force of the failed wheel based on the current wheel load, the previous moment's wheel angle of the failed wheel, and the tire slip angle information. S4: Solve for the minimum wheel angle of the failed wheel. S5: Construct an optimization objective function and set constraints to calculate the target wheel angles. S6: Send the target wheel angles to the steering actuators of each wheel to achieve toe-in braking control under braking failure conditions. The advantage of this invention is that it fully utilizes the four-wheel independent steering and large-angle steering capabilities of the corner module vehicle, reconstructs the vehicle's braking capability through steering control, and improves the system redundancy utilization rate.

The application discloses a matching method for camber and toe angle of a vehicle wheel, which comprises the influence of ground vertical reaction force on tire cornering characteristics when the wheel is cambered. When the wheel is cambered, an equivalent camber cornering force is applied to the tire in the direction opposite to the camber direction of the wheel. When the wheel is straightly driven, the wheel is cambered, but the tire cornering angle is zero because the wheel is constrained by the vehicle body. When the wheel is straightly driven and the camber angle is zero, the ground generates a lateral force on the wheel. When the toe angle is equal to the tire cornering angle caused by the camber, the lateral force can be eliminated. The ideal matching relationship between the camber angle and the toe angle of the wheel is derived based on the influence of the wheel camber on the tire cornering characteristics. The formula is simple in form, convenient to use, and contains various factors influencing the correct matching relationship between the camber angle and the toe angle of the wheel, and is more scientific and reasonable.

The utility model discloses a tire capable of improving surface cracking of a ring part, which relates to the technical field of tires and comprises a tire body, a lower apex is arranged at the bottom of a turn-up groove of the tire body, an upper apex is arranged at one end, close to the end of the turn-up groove of the tire body, of the lower apex, and the upper apex extends out of the turn-up groove of the tire body. A steel wire reinforcing layer wraps a toe opening of the tire body, lining layer rubber is arranged on the inner sides of the tire body and the steel wire reinforcing layer, tire side type rubber is arranged on the outer sides of the upper apex, the tire body and the steel wire reinforcing layer, and wear-resistant rubber is arranged at the lower ends of the lining layer rubber and the steel wire reinforcing layer and on the side wall of the tire side type rubber. On the premise that the inner contour and the outer contour of an existing tire product are not changed, the overall rigidity of the tire bead is improved by adjusting the width of the tire body and the steel wire reinforcing layer, the size and the shape of the apex and the proportion of the wear-resistant rubber and the sidewall rubber, the surface cracking of the ring part is relieved and avoided, the temperature of the ring part is reduced, and the durability of the tire bead is improved.

The invention provides a rear axle toe-in adjusting tool, a using method and a robot, the rear axle toe-in adjusting tool comprises a tightening tool, a visual mechanism, an adjusting tool, an adjusting feeding mechanism, a multi-axis floating mechanism and a tool fixing base, the multi-axis floating mechanism is installed on the tool fixing base, the adjusting feeding mechanism is installed on the multi-axis floating mechanism, and the tightening tool is installed on the multi-axis floating mechanism. The tightening tool and the adjusting tool are oppositely installed on the two sides of the adjusting and feeding mechanism, the tightening tool and the adjusting tool are matched to adjust the toe-in of the rear axle, and the visual mechanism is installed on the adjusting and feeding mechanism. The bolt is positioned through the visual mechanism, positioning deviation is adapted through the multi-shaft floating mechanism, the tightening tool is driven by the tightening tool moving air cylinder to make contact with the nut, the adjusting tool is driven by the adjusting tool moving air cylinder to make contact with the bolt, the structure is simple, operation is easy and convenient, and the practicability is high. The device can adapt to changes of adjusting positions of different wheel tracks, different wheel bases and different vehicle types, can adapt to automatic operation, and is convenient to maintain and high in applicability.

The invention provides a wheel positioning method and related equipment. The method comprises the following steps: training an improved Swinin-Unet network by using a two-dimensional image of a wheel for training to obtain a wheel hub segmentation network; inputting the wheel image of the target vehicle into a wheel hub segmentation network for semantic segmentation to obtain a wheel hub edge mask; hub edge point cloud corresponding to the wheel hub edge mask is extracted from the wheel three-dimensional point cloud data of the target vehicle, the wheel pose of the target vehicle is estimated through the hub edge point cloud and the reference wheel hub edge point cloud, a rotation matrix is obtained, and the rotation matrix is used for representing the wheel pose relation; performing angle transformation on Euler angles in the rotation matrix to obtain a wheel toe-in angle and a wheel camber angle as wheel positioning results; accurate extraction of the wheel hub edge area is realized, so that the point cloud matching efficiency and quality are improved, and finally high-efficiency and high-precision wheel positioning is realized.

Disclosed is a vehicle tuning and calibration system and associated methods for diagnosing and correcting issues involving vehicle performance, driving characteristics, and / or driver assist features. The system includes multiple sensor packages with connectors for mounting a different sensor package to a different wheel of a vehicle. Each sensor package includes sensors that generate measurements for a positioning and movements of the wheel onto which that sensor package is mounted. The system also includes a controller that receives the measurements generated by the sensor packages mounted to the different wheels of the vehicle. The controller generates a user interface with visual representations that are derived from the measurements. The visual representations may identify toe, camber, caster, and other alignment issues detected for different wheels, adjustments to correct the detected issues, and positions and orientations at which to place targets relative to the vehicle for vehicle sensor calibration.

The rope grab uses friction to control movement along the rope. A brake has an eye at one end and a foot at the other that extends away at an angle to a rounded toe. Optionally, the eye and foot are attached so as to swivel. A cam has an oval rocker and a lever that extends from the rocker opposite the rocker surface. The rocker surface curves eccentrically about an axis, so the rocker behaves like a cam to modulate friction on the rope. The rope extends through a slot and is pinched between an operative surface of the rocker surface and the toe. The brake and cam are held in the correct position relative to each other between two parallel walls of a housing with the eye and lever extending in generally opposite directions outside the housing. Optional springs bias the brake toe and operative surface into the slot.

The application discloses a portable tire inner contour detection device and a detection method. The portable tire inner contour detection device comprises a tool frame, a laser ranging mechanism and a data processing unit. The tool frame comprises two mounting parts and a body, the two mounting parts are respectively connected to two ends of the body, and the two mounting parts are configured to be detachably connected with the toe of the tire. The laser ranging mechanism is installed at a specified position and is used for measuring the size of the inner contour of the inner ring and generating detection size data; the data processing unit is connected with the laser ranging mechanism, and standard size data of a standard tire is pre-stored in the data processing unit, and the detection size data transmitted by the laser ranging mechanism is compared and analyzed with the standard size data. The technical scheme provided by the application can effectively measure the inner contour size of the engineering machinery tire, so that researchers can improve and analyze based on the basis, and solve the problems that the development of the engineering machinery tire is lagging behind and the quality of the engineering machinery tire cannot be improved.

The application provides a redundancy braking method and system based on an automatic wheel intelligence chassis, and belongs to the field of vehicle braking. When single wheel braking of a vehicle fails, braking force distribution is performed on the remaining wheels. When the braking intensity is large, the active four-wheel steering system is used to ensure the stability of the vehicle. When braking of two wheels on different sides fails, the required braking force is evenly distributed to make the braking force on both sides equal, thereby ensuring the stability of the vehicle. When braking of two or three wheels on the same side fails, the remaining wheels are used to ensure the braking force, and the active four-wheel steering system is used to ensure the stability of the vehicle. When braking of all four wheels fails, the toe-in angle of the front wheels and the toe-in angle of the rear wheels are increased, the tire side slip angle of the vehicle is changed, the tire lateral force is increased, the longitudinal force of the vehicle is provided by the wheel lateral force, the stability of the vehicle is ensured, and the vehicle is braked. The application can effectively deal with different vehicle failure conditions, coordinate braking, steering and vehicle stability control, and prevent the vehicle from losing control.

The adjustable steering knuckle with the locking function comprises a steering knuckle body, a lower adjusting arm for adjusting the toe-in angle and an upper adjusting arm for adjusting the camber angle are hinged to the two ends of the steering knuckle body respectively, and the upper adjusting arm and the lower adjusting arm are both connected with a driving structure. The driving structure comprises a transmission lead screw, a moving shaft moving along the transmission lead screw in a reciprocating mode and a driving piece driving the transmission lead screw to rotate, and the driving piece is provided with a first locking device for locking the driving piece and preventing the driving piece from rotating. A second locking device for locking the transmission lead screw and the moving shaft to prevent the transmission lead screw from rotating and preventing the moving shaft from axially moving is arranged at the end of the moving shaft and the end of the transmission lead screw, and unexpected rotation of the driving piece and the transmission lead screw and axial movement of the moving shaft are prevented.

The application provides a diagonal retreading tire toe opening device and process, wherein the diagonal retreading tire toe opening device comprises a mounting table, one side of the mounting table is provided with a supporting pipe, one side of the supporting pipe is provided with a pushing assembly, the pushing assembly comprises a hydraulic cylinder, a nut and a plurality of rubber plugs, a supporting box is slidably arranged in the supporting pipe, a plurality of jacking assemblies are arranged on the outer side of the supporting box, a plurality of outer grooves are formed on the outer side of the supporting pipe, and a clamping assembly is arranged in each of the outer grooves. The pushing assembly and the supporting box are matched, the plurality of jacking assemblies control the plurality of clamping assemblies to support and protect the positions of the tire toe that need to be perforated, the damage to the tire is reduced, the perforating assembly can perforate the plurality of positions of the tire toe that are supported and protected at one time, the tire maintenance speed is improved, the time cost investment is reduced, the holes are regularly distributed, and the overall appearance of the tire is less damaged.

A road vehicle having a fixed chassis, two front wheels, and a suspension assembly provided for each front wheel positioned between the fixed chassis and the corresponding front wheel. Each suspension assembly comprises an upper lever and a rod. The upper lever comprises an active tie-rod configured to change the camber angle of the corresponding front wheel and the other rod is realised in the form of a fixed tie-rod configured to change the toe-in angle of the corresponding front wheel. The active camber tie-rod is a telescopic type tie-rod to vary its length. The active camber tie-rod and the fixed toe-in tie-rod being are coupled on one side to the chassis and on the other side to the wheel at such points of the space that activating the active tie-rod simultaneously modifies both the camber angle and the toe-in angle.

The invention discloses a vehicle suspension dynamic flexibility detection method and device, electronic equipment, a storage medium and a program product. The method comprises the following steps: dynamically testing a target vehicle based on a target test bench; wherein the target test bench is a test bench used for carrying out kinematics characteristic and elastic kinematics characteristic tests on the vehicle suspension system under the dynamic driving condition; acquiring wheel center displacement data, toe-in angle data and camber angle data of a target wheel of the target vehicle in the dynamic test process; wherein the target wheel is any front wheel of the target vehicle; and determining a first transfer function according to the wheel center displacement data and the toe-in angle data, determining a second transfer function according to the wheel center displacement data and the camber angle data, and determining a vehicle suspension dynamic flexibility detection result of the target vehicle according to the first transfer function and the second transfer function. According to the technical scheme provided by the embodiment of the invention, scientific and accurate detection of the dynamic flexibility of the vehicle suspension of the target vehicle can be realized.

A top profile of a wing rail inlaid block comprises a profile A, a profile B and a combined profile, and the profile A comprises a first top inclined face matched with the profile of the top face of a wing rail and a working edge curved face matched with the profile of a rail head of the wing rail. The profile B comprises a second top inclined surface matched with the profile of the top surface of the point rail and an arc working edge capable of reducing stress concentration, and the combined profile comprises a second top inclined surface, a third top inclined surface smoothly connected with the second top inclined surface and matched with a wheel tread, and an arc working edge capable of reducing stress concentration; the profile A is arranged between the toe end of the mosaic block and the throat of the frog, so that the wheel is smoothly converted between the wing rail and the wing rail mosaic block; the profile B is arranged between the 10mm-wide section of the point rail and the heel end of the insert block, so that the wheel is smoothly converted between the point rail and the wing rail insert block; the combined profile is arranged between a frog throat and a 10mm-wide section of a point rail, so that the wheel is smoothly converted between the profile A and the profile B.

1. The name of the design product: camber angle detector. 2. The use of the design product: used in car repair shop, 4S shop and tire shop, which is matched with magnetic flat water instrument to measure four-wheel positioning (including toe, camber, kingpin caster angle, etc.) equipment. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

A suspension unit for suspending a wheel and tire assembly from a vehicle frame includes a hanger, a control arm, a spindle assembly, a jounce spring, a rebound spring, a camber adjustment mechanism, and a toe adjustment mechanism. The spindle assembly is connected to an upper wall top surface of the control arm at an upper wall terminal end. The jounce spring is positioned between the upper wall top surface and a top wall bottom surface of the hanger. The rebound spring is positioned between a forward wall outer surface of the control arm and a front wall inner surface of the hanger. A mounting bolt connects the control arm to the hanger. The camber adjustment mechanism is configured to change a first position of a mounting bolt first end of the mounting bolt along a y-axis relative to a second position of a mounting bolt second end along the y-axis. The toe adjustment mechanism is configured to change a third position of the mounting bolt first end or the mounting bolt second end along an x-axis relative to a fourth position of an opposing mounting bolt end along the x-axis.

To provide an innovative active camber unit capable of changing not only a camber angle but also a toe-in angle.SOLUTION: A road vehicle 1 having a roll axis X, a pitch axis Y and a yaw axis Z and comprising a fixed chassis 2 and two front wheels, a suspension assembly 4 being provided for each front wheel and being arranged between the fixed chassis and the corresponding front wheel, each suspension assembly comprising an upper lever and a rod, the upper lever being an active tie rod for varying the camber angle of the corresponding front wheel; The other rod is a fixed tie rod for varying the toe-in angle of the corresponding front wheel and the active camber tie rod is a telescopic tie rod, the active camber tie rod and the fixed toe-in tie rod being connected on one side to the chassis and on the other side to the wheel at a point in space such that actuating the active tie rod modifies both the camber angle and the toe-in angle simultaneously.SELECTED DRAWING: Figure 1

The application discloses a kind of crab vehicle four-wheel alignment tooling, first tooling is used to determine axle axis reference, second tooling is used to determine the perpendicularity of rear axle axis and frame axis, third tooling and fourth tooling are used to assist complete the adjustment of front, rear wheel toe.A kind of adjustment method using crab vehicle four-wheel alignment tooling, using first tooling to determine axle axis reference→based on axle axis reference, using second tooling to assist and adjust rear axle assembly, ensure the perpendicularity of rear axle axis, front axle axis and frame axis→based on the above adjustment, using third tooling and fourth tooling to assist and adjust steering tie rod, ensure the perpendicularity of left rear tire and rear axle axis→adjust rear axle assembly front side steering cross tie rod, so that rear axle toe meets technical index.For crab vehicle structure, design a set of auxiliary tooling, and determine the perpendicularity of each axis using tooling, ensure the accuracy of front, rear wheel toe adjustment, simple operation, high adjustment accuracy.

The utility model relates to the technical field of lifters, and particularly discloses a flexible and unimpeded four-wheel positioning side sliding device under high bearing weight, which comprises a bottom frame and a side sliding plate mounted on the bottom frame, a positioning plate and a plurality of roller mounting plates are arranged on the bottom frame, a plurality of rollers are arranged on the roller mounting plates, a bearing sliding groove is formed in the positioning plate, and a bearing sliding groove is formed in the bearing sliding groove. A bearing assembly, a first spring mechanism and a second spring mechanism are arranged on the inner side of the bottom of the side sliding plate, the bearing assembly is installed in the bearing sliding groove in a sliding mode, and the first spring mechanism and the second spring mechanism are symmetrically arranged on the two sides of the bearing assembly and fixedly connected with the bottom frame. According to the utility model, the rollers, the bearing assemblies and the spring mechanisms are arranged for matched transmission, so that the side sliding plates can flexibly rotate under high bearing weight, the smooth and unobstructed effect is achieved, the camber angle data of the rear wheels and the rear beam of the rear wheels can be adjusted during four-wheel positioning, the durability is good, the maintenance is not needed, the durability is longer, and the service life is prolonged. And the service life is long.

A method of measuring and adjusting the toe of a wheel of a vehicle incudes mounting an alignment plate below the vehicle in parallel with a vehicle centerline. Measuring a first distance from a first reference location of the alignment plate to a first portion of a toe plate disposed against the wheel. Measuring a second distance from a second reference location of the alignment plate to a second portion of the toe plate. Comparing the first distance to the second distance and adjusting a toe of the wheel based upon a difference between the first distance and the second distance.

The invention attached to the knuckle is called the V-base knuckle, which consists of 1. knuckle 2. V-plate 3. knuckle clamp 4. knuckle bushing parts 5. base clamps and 6. base. Its function is to provide better independent control of the toe angle and reduce noise, vibration, and harshness (NVH) compared to the conventional suspension. The V-base knuckle is applicable to various types of vehicle suspension, such as torsion beam, trailing arm, semi-trailing arm, multi-link, and wishbone suspension.

The invention relates to the technical field of tire manufacturing, and discloses a high-wear-resistance tire tread and a tire thereof.The tread comprises a plurality of pattern blocks, each pattern block is composed of a front end area located on the ground entering side and a rear end area located on the ground leaving side, and the front end area and the rear end area are connected through an oblique combination face. The front end domain adopts a first sizing material component containing a dynamic metal coordination sacrifice bond network, and has low modulus and high shock absorption characteristics; and the rear end domain adopts a second sizing material component containing a rigid reinforcing filler, and has the characteristics of high modulus and strong support. Structurally, the inclination angle alpha of the front end wall face of each pattern block is larger than the inclination angle beta of the rear end wall face of each pattern block, and the first rubber component covers the second rubber component through the inclined combination face. Through the oblique interlocking design of the asymmetric geometric structure and the soft and hard rubber materials, the stress difference between the front part and the rear part of the pattern block is effectively balanced, the problems of toe heel eccentric wear and interface layering are solved, meanwhile, impact energy is dissipated by utilizing the sacrifice keys, the chunking resistance of the tire is remarkably improved, and the service life of the tire is remarkably prolonged.