80 results about "MacPherson strut" patented technology

A framing structure for support of the rear suspension components of an automotive which includes a pair of generally vertically oriented suspension strut towers spaced laterally with respect to the vehicle and with each strut tower fixedly attached at lower end portions to a lower cross beam and fixedly attached at upper end portions to an upper cross beam and having an isolating structure at the upper end portion of each strut tower to which the upper end portion of a rear suspension component such as a shock absorber or a MacPherson suspension strut is attached in a manner isolating the suspension component from the strut tower and upper cross beam.

The invention discloses an independent front suspension with a transversely arranged steel plate spring. The independent front suspension with the transversely arranged steel plate spring comprises a left front shock absorber and a right front shock absorber both provided with a limiting block, left and right steering knuckles, a steel plate spring, and a steady rod component, wherein left and right lower swing arms are respectively connected with the left and right steering knuckles through lower swing arm ball pins; the transversely arranged steel plate spring is composed of two transversely arranged upper and lower steel plate springs with variable cross-sections; the middle part of the steel plate spring is connected with a car body; the central line of the steel plate spring is consistent with an X-direction of a wheel center of a wheel; two ends of the steel plate spring are connected with the left and right lower swing arms through a vulcanized rubber component; the shock absorbers are arranged vertically in a front view of a car, inclined backwards in a side view thereof and have an included angle alpha of 2-4 degrees with the axial line. The independent front suspension, disclosed by the invention, has the advantages of compact arrangement, rational structure, relatively low manufacturing and processing cost; the transversely arranged steel plate spring is mutually matched with a single-angle shock absorber, so that the car can achieve relatively ideal comfort level in any load state, good operational stability of a McPherson suspension is continued, and internal space of the car is further maximized; and obvious improvements in the aspects of overall performances, cost and the like are achieved.

The bump stop device, particularly for a motor vehicle, comprises a bearing 6 forming an axial stop, a bottom support cover 5 of the bearing and a bottom retainer 7 for a spring comprising at least one stiffening strut. The support cover 5 and/or the retainer 7 comprises at least one axial securing means 15 of the bottom retainer and of the bottom support cover, the said means being situated axially set back from a bottom end of the retainer.

The invention aims at providing a method for simply designing a McPherson suspension. The method comprises the following steps: firstly, establishing a coordinate system; then, obtaining hard point position parameters of connecting positions of each component in the McPherson suspension such as the shock absorber upper point, the tire grounding point, the control arm outer point and the control arm front point or back point and the like through measurement or calculation; carrying out calculation according to the parameters to obtain an equation of a main pin axial line and a control arm axial line; calculating the coordinates of an instantaneous rotation center through setting a first auxiliary line on the basis; and then, calculating the side inclination center height through setting a second auxiliary line. Thereby, the hard point positions of the connecting positions of each component in the McPherson suspension can be regulated according to the design requirements, and the side inclination center height of the McPherson suspension can be regulated. The method for designing the McPherson suspension of the invention has the characteristics of low threshold, convenience, accuracy and the like, is suitable for being used in the development work of the McPherson suspension, and can improve the developing speed.

The invention relates to a light-weight suspension system of an automobile, in particular to a carbon fiber composite McPherson suspension control arm. The carbon fiber composite McPherson suspension control arm comprises a control arm body, a first bushing connected with an automobile body, a second bushing connected with a steering knuckle and a ball pin, wherein the control arm body is made of a carbon fiber composite and is hollow in the middle part; a first bushing end on which the first bushing is mounted, a second bushing end on which the second bushing is mounted, and a ball pin end to which the ball pin is connected are respectively arranged on the control arm body. The control arm disclosed by the invention has the advantages of being light in mass, high in intensity, high in impact resistance and the like, and the thickness can be designed, realization of the light weight of automobile parts is facilitated, and the development requirements of a conventional automotive technology for the respects of being energy-saving, environmentally-friendly, safe and the like are met; in addition, the invention further provides a preparation method of the control arm.

The invention relates to a system for motorising a wheel (5) connected to a suspension, the system including an engine block (3) and a driving member (4) secured to the wheel (5). According to the invention, the engine block is secured to the suspended portion of the MacPherson strut (2) and a clutch device (6) connects the output shaft (7) of the engine block (3) to the driving member (4).

The invention discloses a speed reducing type electric drive system in an integrated McPherson hanger bracket wheel, wherein an electric motor housing is integrated with an McPherson hanger bracket lower swing arm, a speed reducing box housing is integrated with a steering knuckle, and a distribution mode that an electric motor deviates from the center of a wheel and is close to an elastic hinge of a lower swing arm is adopted. The speed reducing type electric drive system has the advantage that the vibration of the electric motor relative to a frame can be reduced when the wheel jumps, and has the characteristics of high integration degree and light weight due to adoption of an equivalent spring.

The invention provides a wire-control four-wheel independent steering system based on a universal transmission structure. The system comprises a rotary motor (1), a reducer (2), a buffer device (3), a drive shaft (4), a McPherson suspension system (5), a rotating device (6), a transmission device (8) and a ball universal joint (9). the power of the rotary motor (1) is input in the transmission device (8) through the ball universal joint (9) and the drive shaft (4); the direction and size of the rotary movement are changed by a gear pair (7); a steering knuckle is driven by the rotating device (6) to rotate to realize rotating angle between minus 90 DEG to plus 90 DEG. Because of the constant velocity of the ball universal joint, the linear relationship between input angle and wheel turning angle does not change with the change of positioning parameters which increases the ability of the control system to resist external disturbance and enhance its robustness. At the same time, the structure reduces the kingpin inclination angle by the outward movement of the arrangement of the transmission device (8) to increase the driving stability.

The invention discloses a Macpherson suspension wheel rim electric driving system for a steering wheel. A motor casing is fixedly connected with a gearbox casing and is supported on a support through an elastic hinge; one end of a lower swing arm connecting rod is connected with the gearbox casing through a first rotating hinge; one end of a steering knuckle connecting rod is connected with a steering knuckle through a third rotating hinge; the lower swing arm connecting rod is connected with the steering knuckle connecting rod through a second rotating hinge; a damper piston rod slides along a central axis of a damper work cylinder barrel; the upper end of the damper piston rod is connected with a frame through a vibration isolating block assembly with a bearing; the damper work cylinder barrel is fixedly connected with the steering knuckle; an axle shaft sleeve is formed in the steering knuckle; a hub is supported on the axle shaft sleeve through a hub bearing; a steering knuckle arm on the steering knuckle is connected with a steering pull rod through a spherical hinge; one end of a universal joint is fixedly connected with a gearbox output shaft; the other end of the universal joint is fixedly connected with an axle shaft; the axle shaft is fixedly connected with the hub; and the hub is fixedly connected with a brake rotating piece and a rim. The Macpherson suspension wheel rim electric driving system disclosed by the invention has the advantages that a motor casing, the gearbox casing and a lower swing arm of a Macpherson suspension are integrated, the vibration of a motor relative to the frame is reduced and the equivalent unsprung weight is light.

The invention discloses a construction method of a McPherson suspension multi-objective optimization function based on sensitivity analysis, the method being characterized by including: establishing mathematical models of front wheel alignment parameters, alignment torque and tire wear, quantifying the influence degree of front wheel alignment parameters on alignment torque and tire wear by usingsensitivity analysis method, and determining weight coefficients of Kingpin back inclination angle, Kingpin inclination angle, camber angle and toe angle under a high-speed working condition and a low-speed working condition; establishing a vehicle simulation model, and obtaining the simulation data through ride comfort test, and thus establishing the multi-objective optimization model of McPherson suspension hard point coordinates. The invention can effectively guarantee the objectivity and rationality of the weight coefficient in the McPherson suspension hard point coordinate multi-objectiveoptimization model, thereby improving the handling stability of the automobile and reducing the tire wear.

A method for determining at least one rolling condition of a motor vehicle wheel, which wheel being mounted on the chassis of the vehicle via a MacPherson strut integrating a suspension stop which includes a rotating component in relation to the chassis is described. The method envisages using a device for detecting the angular displacements of the rotating component, which device is suitable for generating an analogue signal which is representative of the angular displacements according to time. The method envisages carrying out a frequency analysis of the analogue displacement signal such as to obtain a spectrum including at least one frequency window wherein at least one datum of the spectrum is based on a rolling parameter; measuring at least one of the data; determining, from the measured datum or data, at least one rolling condition corresponding to the rolling parameter or to the development of the rolling parameter.

The invention relates to an automotive front Macpherson suspension and an automobile comprising the same. A control arm of the automotive front Macpherson suspension comprises a control arm body, a ball pin, a front frame bushing and a rear frame bushing, wherein the ball pin is positioned on the control arm body and is connected with a steering joint; the front frame bushing and the rear frame bushing are positioned on the control arm body and are connected with a frame; at least one of the front frame bushing and the rear frame bushing is made of a rubber material, and the radial rigidity is greater than the axial rigidity. Moreover, the invention also provides an arrangement relationship between key hard points of the control arm. According to the automotive front Macpherson suspension and the corresponding automobile, the rigidity characteristic of front and rear automobile reinforcing bushings on the control arm is perfectly designed, the relationship between the key hard points of the control arm is advantageously designed, the dynamic unbalance of a tire assembly when a vehicle runs at high speed and the vibration transferred to a driver by the frame are reduced, and the driving control and the driving comfort are improved.

A wheel suspension has a wheel-guiding McPherson strut unit which includes a helical compression spring and a shock absorber, and which is connected to a vehicle body, on the one hand, and to a wheel on the other, and with a suspension arm wherein the compression spring is provided between an upper spring plate connected to the body and a lower spring plate connected to the shock absorber. The undesired, but unavoidable relative movements between the lower spring end of the compression spring and the lower spring plate connected to the shock absorber have an effect that is less negative than usual due to a coating provided between the lower spring end of the helical compression spring and the lower spring plate connected to the shock absorber protecting the lower spring end of the helical compression spring and/or the lower spring plate connected to the shock absorber.

The invention relates to a drive-by-wire four-wheel independent steering system with a steering motor mounted on a Macpherson suspension lower swinging arm. The drive-by-wire four-wheel independent steering system comprises a frame, wheels, a suspension rack and a steering motor assembly, wherein the suspension rack is respectively connected with the wheels and the frame; the suspension rack has a lower swinging arm, a knuckle and a Macpherson suspension rack of a spring damper; the lower swinging arm and the spring damper are both connected with the frame and the knuckle; the knuckle is connected with the wheels; the steering motor assembly is fixed on the lower swinging arm and connected with the knuckle via a universal transmission device to drive the knuckle to rotate along a main pin axis. Compared with the prior art, the drive-by-wire four-wheel independent steering system with the steering motor mounted on the Macpherson suspension lower swinging arm is advantaged by high system integration degree, great modularization and flexible steering as well as wide steering range.

An apparatus allows for the independent adjustment of caster and camber for vehicles utilizing MacPherson strut front suspensions. The apparatus has, in stacked arrangement, a fastener plate, a lower plate, and an upper plate. Camber adjustments are generally made by manipulation of the lower plate and caster adjustments are generally made by manipulation of the upper plate. The upper plate may be mounted in two different positions to allow for different camber adjustments, such as for competitive situations and non-competitive situations. The device utilizes a thrust bearing having a race in the upper face of the spring perch and an opposing race which mounts around the base of the bearing cup.

The invention relates to a four-wheel independent steering-by-wire system with a steering motor positioned at a steering knuckle of a Macpherson suspension. The four-wheel independent steering-by-wire system comprises a frame, wheels, a suspension and a steering motor assembly, wherein the suspension is connected with the wheels and the frame respectively; the suspension is the Macpherson suspension comprising a lower suspension arm, the steering knuckle and a spring absorber, the lower suspension arm and the spring absorber are connected with the frame and the steering knuckle respectively, and the steering knuckle is connected with the wheels; the steering motor assembly is connected with the steering knuckle; and the wheels are driven to steer by driving the steering knuckle. Compared with the prior art, the system has the advantages of high system integration level, high modularization degree, steering response sensitivity, wide steering range and the like.

The invention provides an automobile front auxiliary frame and a corresponding automobile. The automobile front auxiliary frame comprises a front auxiliary frame upper plate and a front auxiliary frame lower plate which are in matched connection with each other. Stabilizing rod mounting plates are arranged on two sides of the front auxiliary frame upper plate respectively, every stabilizing rod mounting plate is provided with a mounting hole for installing a stabilizing rod, a space between every stabilizing rod mounting plate and the front auxiliary frame lower plate is suitable for placing one end of a swing arm, and the end of the swing arm and the stabilizing rods are installed by utilizing a shared fastener to penetrate the mounting holes. The automobile front auxiliary frame is suitable for a Macpherson suspension; compared with other auxiliary frames, the number of installed and welded sheet metal parts is reduced, the stabilizing rods and the swing arm share assembling bolts, use of welding fasteners is reduced, assembling fasteners of a whole front suspension are reduced, the structure is lightened, and the cost is reduced.

A self-pumping hydropneumatic MacPherson strut unit is provided with a working cylinder filled with oil under pressure and a piston and rod unit displaceable in the cylinder so as to define two working spaces in the cylinder, and high-pressure and low pressure chambers surrounding the cylinder. The strut unit further has a piston pump operable to transport a working medium from the low-pressure chamber into one of the working spaces of the working cylinder, wherein the one working space being in flow communication with the high-pressure chamber. The piston pump has a cylinder defined by the inner surface of the piston and rod unit, a hollow pump rod coupled to the working cylinder and having an inner bore in flow communication with the low-pressure chamber, a deregulating opening and a deregulating channel provided with a throttle in flow communication with the deregulating opening and the low pressure chamber. Installed in the deregulating channel is a filter device operable to prevent the throttle from impurities carried by the working medium during displacement thereof through the deregulating opening to the low pressure chamber.

The invention provides a Macpherson suspension shock absorber lateral force measuring method and a Macpherson suspension shock absorber lateral force auxiliary measuring tool. A shock absorber penetrates a guiding seat on a vehicle body and is connected with a vehicle body tower bag. The above method includes the steps that firstly, the X-direction position and the Y-direction position of a piston rod of the shock absorber of the vehicle body is marked on the vehicle body; secondly, the shock absorber of a vehicle and an installation base are demounted, and a test shock absorber is installed on the vehicle body through a test installation base; thirdly, a piston rod of the test shock absorber is wobbled till the X-direction position coincides with the Y-direction position, and the lateral force at the end portion of the piston rod of the test shock absorber is detected; and fourthly, the lateral force at the position of the piston rod of the test shock absorber and the lateral force at the position of the guiding seat are calculated according to the lateral force at the end portion and the lever ratio. By means of the method, the supporting force at the position of the piston rod of the shock absorber of the vehicle and the supporting force at the position of the guiding seat can be actually measured, and compared with the prior art, the measurement value is more accurate, and the quality of a Macpherson suspension can be better ensured.

The present invention relates to a drive-by-wire four-wheel independent steering system with a steering motor provided on a knuckle of a McPherson suspension. The system comprises a frame, wheels, a suspension and the steering motor. The suspension comprises the knuckle, the knuckle is connected with the output shaft of the steering motor through a key, the knuckle is controlled by the steering motor to rotate around the axis of the steering motor, and thus the wheels fixedly connected with the knuckle rotate correspondingly. The suspension is further provided with a lever, for guiding the movement of the suspension. Compared with the prior art, the drive-by-wire four-wheel independent steering system has the advantages of high system integration, short transmission chain of steering motion, an increase in the wheel limit steering angle, higher bearing capacity for aligning torque and the like.

The invention discloses a 1/4 automobile model modeling method based on McPherson suspension, comprising the following steps: 1) drawing a 1/4 automobile model plan based on McPherson suspension, andmaking related simplified assumptions and definitions; 2) defining a coordinate matrix of each coordinate point on that plan; 3) kinematics analysis of the system based on the geometrical relation inthe plane graph by using the displacement matrix method; 4) defining a force matrix of each coordinate point; 5) taking a certain instantaneous object in that motion of the system to carry out dynamicanalysis; 6) model linearization, i. E. Linearization of the equation at the equilibrium position of the system. As the suspension geometry structure, the moment of inertia of the control arm, the moment of inertia of the tire, the tire dam, the lateral rigidity of the tire and other factors are comprehensively consider, kinematics parameters such as the inclination angle of the kingpin, the camber angle of the tire, the change amount of the wheel tread and the like can be analyzed, the precision is high, the practicability is stronger, and a reliable basis can be provided for the design andperformance analysis of the suspension.