Adjusting method of suspension platform, suspension platform and vehicle
By installing a shock absorber on the suspension platform and adjusting the control arm position, the problem of high replacement cost of suspension platform is solved, and efficient replacement between the double wrench and the McPherson suspension platform is achieved, reducing development costs.
Patent Information
- Application Number
- CN202411032661.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-04-04
AI Technical Summary
The overall interchange scheme of the suspension platform in the prior art leads to high costs and it is difficult to achieve efficient replacement between the double-wrench suspension platform and the McPherson suspension platform.
By installing the McPherson shock absorber or double-wrexed arm shock absorber on the subframe and adjusting the position of the outer point of the front lower control arm or the outer point of the rear lower control arm to determine the main pin axis that meets the needs of replacing the rear suspension platform.
Replacement between different suspension platforms is achieved without the need to replace or adjust other relatively expensive parts, such as the body, subframe and steering gear, thereby reducing development costs.
Smart Images
Figure CN119749135A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of vehicle manufacturing, and in particular, to a suspension platform adjustment method, a suspension platform and a vehicle. Background Art
[0002] With the widespread proposal of cost-cutting and efficiency-enhancing design ideas, how to make functional modules interchangeable between different platforms at the lowest cost has received more and more attention in the vehicle design and manufacturing process. Among them, the suspension platform is usually interchangeable as a whole in related technologies due to its complex structure and many constraints, resulting in high costs. Summary of the invention
[0003] In order to overcome the problems existing in the related art, the present disclosure provides a suspension platform adjustment method, a suspension platform and a vehicle.
[0004] According to a first aspect of an embodiment of the present disclosure, a method for adjusting a suspension platform is provided, which is suitable for switching between a double wishbone suspension platform and a MacPherson suspension platform, wherein the steps of the method for adjusting the suspension platform include: Install the McPherson shock absorber or double wishbone shock absorber on the subframe; Adjust the position of the outer point of the front lower control arm or the outer point of the rear lower control arm.
[0005] Optionally, the step of installing the McPherson shock absorber on the subframe includes: Determine the position of the lower point of the McPherson shock absorber; Determine the location of the points on the McPherson shock absorber; or, The step of installing the double wishbone suspension shock absorber on the subframe comprises: Determine the location of the lower point of the double wishbone shock absorber; Locate the point on the double wishbone shock absorber.
[0006] Optionally, the upper point of the McPherson shock absorber is an upper ball head point of the McPherson shock absorber; the upper point of the double wishbone shock absorber is an upper control arm ball head point connected to the double wishbone shock absorber.
[0007] Optionally, the step of determining the position of a point on the McPherson shock absorber comprises: Determine the Z coordinate of the upper point according to the position of the lower point of the McPherson shock absorber and the height of the McPherson shock absorber itself; Determine the Y coordinate of the upper point according to the predetermined kingpin inclination angle; The X-coordinate of the upper point is determined according to the predetermined caster angle.
[0008] Optionally, the step of determining the position of a point on the double wishbone shock absorber comprises: Determine the Z coordinate of the ball head point of the upper control arm according to the lower point position of the double wishbone shock absorber, the height of the double wishbone shock absorber itself, and the position of the ball head point of the upper control arm relative to the double wishbone shock absorber; Determine the Y coordinate of the ball head point of the upper control arm according to the predetermined kingpin inclination angle; The X-coordinate of the ball head point of the upper control arm is determined according to the predetermined caster angle.
[0009] Optionally, the step of determining the position of the lower point of the McPherson shock absorber or the step of determining the position of the lower point of the double wishbone shock absorber comprises: Make the minimum distance between the McPherson shock absorber or double wishbone shock absorber and the wheel greater than or equal to 20 mm.
[0010] Optionally, the McPherson shock absorber or the double wishbone shock absorber is mounted on the subframe via a mounting bracket, wherein a minimum distance between the mounting bracket and the wheel is greater than or equal to 20 mm.
[0011] Optionally, the method for adjusting the suspension platform further comprises: Determine the preliminary kingpin axis according to the installation position of the McPherson shock absorber or double wishbone shock absorber; The kingpin parameters are determined based on the preliminary kingpin axis.
[0012] Optionally, according to whether the kingpin parameter deviates from a predetermined range value, the position of the outer point of the front lower control arm or the outer point of the rear lower control arm is adjusted so that the kingpin axis finally determined meets the predetermined range.
[0013] Optionally, the kingpin parameters include a kingpin inclination angle, a kingpin caster angle, a kingpin offset and a kingpin center offset.
[0014] Optionally, the kingpin inclination angle is selected within the range of 10°~14°; the kingpin caster angle is selected within the range of 3°~7°; the kingpin offset is selected within the range of -15㎜~10㎜; and the kingpin center offset is selected within the range of less than or equal to 80㎜.
[0015] Optionally, the method for adjusting the suspension platform further comprises: Adjust the position of the outer point of the stabilizer bar tie rod.
[0016] According to a second aspect of an embodiment of the present disclosure, there is provided a suspension platform, wherein the suspension platform is adjusted using any one of the above-mentioned methods for adjusting a suspension platform.
[0017] Optionally, the suspension platform further comprises a floor, the floor being respectively pre-set with a first opening corresponding to a double wishbone shock absorber and a second opening corresponding to a shock absorber of a McPherson suspension platform.
[0018] According to a third aspect of an embodiment of the present disclosure, a vehicle is provided, comprising the suspension platform of any one of the above items.
[0019] Optionally, the vehicle further comprises a steering gear, which is arranged in front of or behind the wheel center line.
[0020] The technical solution provided by the embodiment of the present disclosure may include the following beneficial effects: the adjustment method of the suspension platform provided by the present disclosure includes: installing a McPherson shock absorber or a double wishbone shock absorber on a subframe; adjusting the position of the outer point of the front lower control arm or the outer point of the rear lower control arm. Considering that the difference in the structure of the double wishbone suspension platform and the McPherson suspension platform leads to different kingpin axes, and the kingpin axis is determined by the installation position of the shock absorber and the position of the outer point of the front lower control arm or the outer point of the rear lower control arm, after the McPherson shock absorber or the double wishbone shock absorber is installed on the subframe, a preliminary kingpin axis can be obtained, and then the position of the outer point of the front lower control arm or the outer point of the rear lower control arm is adjusted, so as to finally obtain the kingpin axis that meets the requirements of replacing the rear suspension platform. That is, according to the adjustment method of the suspension platform disclosed in the present disclosure, the replacement and adjustment of the shock absorber and the control arm can realize the replacement between different suspension platforms, and in this process, it is not necessary to replace or adjust other relatively high-cost components such as the lower body, subframe and steering gear, so as to reduce the development cost.
[0021] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The accompanying drawings are used to provide further understanding of the present disclosure and constitute a part of the specification. They are used to explain the present disclosure together with the following detailed description, but do not constitute a limitation of the present disclosure.
[0023] Figure 1 is a flow chart of a suspension platform adjustment method provided in an exemplary embodiment of the present disclosure.
[0024] Figure 2 is a flow chart of another suspension platform adjustment method provided in an exemplary embodiment of the present disclosure.
[0025] Figure 3 It is a flowchart of a suspension platform adjustment method provided by an exemplary embodiment of the present disclosure.
[0026] Figure 4 is a flow chart of yet another suspension platform adjustment method provided by an exemplary embodiment of the present disclosure.
[0027] Figure 5 is a flow chart of yet another suspension platform adjustment method provided in an exemplary embodiment of the present disclosure.
[0028] Figure 6 is a schematic diagram of a double wishbone suspension platform provided in accordance with an exemplary embodiment of the present disclosure.
[0029] Figure 7 Schematic diagram of a MacPherson suspension platform provided by an exemplary embodiment of the present disclosure.
[0030] Figure 8 Schematic diagram of a kingpin inclination angle provided by an exemplary embodiment of the present disclosure.
[0031] Fig. 9 Schematic diagram of a caster angle provided by an exemplary embodiment of the present disclosure.
[0032] Fig.10 Schematic diagram of the positional relationship between a shock absorber and a wheel provided in an exemplary embodiment of the present disclosure.
[0033] Fig.11 It is a schematic diagram of the positional relationship of a steering gear on a sub-frame provided by an exemplary embodiment of the present disclosure.
[0034] Fig.12 Schematic diagram of another double wishbone suspension platform provided by an exemplary embodiment of the present disclosure.
[0035] Description of Reference Numerals 1-subframe, 2-1-double wishbone shock absorber, 2-2-McPherson shock absorber, 21-upper point of shock absorber, 22-mounting bracket, 3-lateral stabilizer bar, 4-stabilizer bar tie rod, 5-steering knuckle, 51-outer point of steering tie rod, 6-rear lower control arm, 61-inner point of rear lower control arm, 62-outer point of rear lower control arm, 7-front lower control arm, 71-inner point of front lower control arm, 72-outer point of front lower control arm, 8-upper control arm, 81-ball head point of upper control arm, 9-wheel, 200-steering gear, 300-floor, 310-first opening, 320-second opening. DETAILED DESCRIPTION
[0036] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.
[0037] The embodiments described in some embodiments of the present disclosure below do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.
[0038] like Figure 1 As shown, the exemplary embodiment of the present disclosure provides a method for adjusting a suspension platform, which is suitable for replacing between a double wishbone suspension platform and a McPherson suspension platform, and is more suitable for interchange between a double wishbone suspension platform and a McPherson suspension platform when at least the lower vehicle body, the subframe 1 and the steering gear 200 are shared. It should be noted that the shared here means that the replaced double wishbone suspension platform and the McPherson suspension platform have at least the same lower vehicle body, the subframe 1 and the steering gear 200. According to different suspension platforms, the parts that need to be replaced and adjusted may include necessary or low-cost parts such as shock absorbers, rear lower control arms 6 and steering knuckles 5. Specifically, the steps of the suspension platform adjustment method include: S1, installing a McPherson shock absorber or a double wishbone shock absorber on a subframe; S2, adjusting the position of the outer point of the front lower control arm or the outer point of the rear lower control arm.
[0039] The structural differences between the double wishbone suspension platform and the MacPherson suspension platform result in different kingpin axes, such as Figure 8 and Fig. 9 As shown, the kingpin axis determines the kingpin inclination angle , caster angle , Kingpin offset and kingpin center offset The kingpin parameters, including the steering wheel, steering column and steering gear, affect the stability of the vehicle, which will be introduced in detail later.
[0040] There are differences in the way the kingpin axis is determined for different types of suspension platforms. Figure 6 For example, the intersection of the plane formed by the line connecting the upper control arm ball head point 81 and the inner and outer points of the front lower control arm and the plane formed by the line connecting the upper control arm ball head point 81 and the inner and outer points of the rear lower control arm is the kingpin axis of the double wishbone suspension. Figure 7 In the McPherson suspension platform shown, the intersection of the plane formed by the line connecting the upper point 21 of the shock absorber and the inner and outer points of the front lower control arm and the plane formed by the line connecting the upper point 21 of the shock absorber and the inner and outer points of the rear lower control arm is the kingpin axis of the McPherson suspension. It should be noted that the components in the suspension platform are usually connected through a ball head structure, for example, the inner ball head of the front lower control arm or the outer ball head of the front lower control arm. For the convenience of description, this application briefly describes them as inner points or outer points.
[0041] After the position of the double wishbone shock absorber is determined, and the double wishbone shock absorber is preset with the mounting point of the upper control arm 8, the position of the upper control arm ball head point 81 can also be determined. In this way, the kingpin axis of the double wishbone suspension platform and the McPherson suspension platform can be considered to be determined by the mounting position of the shock absorber on the subframe 1, the inner and outer points of the front lower control arm, and the inner and outer points of the rear lower control arm.
[0042] First, the McPherson shock absorber 2-2 or the double wishbone shock absorber 2-1 is installed on the subframe. Here, the specific choice of installing the McPherson shock absorber 2-2 or the double wishbone shock absorber 2-1 is determined according to the target suspension platform. For example, the McPherson suspension platform is designed based on the double wishbone suspension platform, the target platform is the McPherson suspension platform, and the McPherson shock absorber 2-2 is installed on the subframe 1. After the shock absorber is installed, the upper point position of the McPherson shock absorber 2-2 or the position of the upper point of the double wishbone shock absorber 2-1 is actually determined, and then a preliminary kingpin axis is determined.
[0043] Then, adjust the position of the front lower control arm outer point 72 or the rear lower control arm outer point 62, specifically, re-determine the intersection line between the plane formed by the connection line of the upper control arm ball head point 81 and the inner and outer points of the front lower control arm and the plane formed by the connection line of the upper control arm ball head point 81 and the inner and outer points of the rear lower control arm, or re-determine the intersection line between the plane formed by the connection line of the shock absorber upper point 21 and the inner and outer points of the front lower control arm and the plane formed by the connection line of the shock absorber upper point 21 and the inner and outer points of the rear lower control arm, so as to finally obtain the kingpin axis that meets the requirements of replacing the rear suspension platform. Specifically, whether to adjust the front lower control arm outer point 72, or adjust the rear lower control arm outer point 62, or adjust both at the same time, can be adjusted according to the sensitivity of the hard point to the kingpin parameter.
[0044] It can be seen from the above design process that it does not involve structural and positional adjustments to components such as the lower vehicle body, the subframe 1 and the steering gear 200. That is, in the adjustment method of the suspension platform provided in the present invention, the lower vehicle body, the subframe 1 and the steering gear 200 can be shared, and these components are the more expensive parts of the suspension platform. The higher cost here is relative to the cost of components that need to be replaced when the suspension platform is interchanged, such as the shock absorber, the rear lower control arm and the steering knuckle 5, which is conducive to reducing development costs and shortening development cycles.
[0045] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: the adjustment method of the suspension platform provided by the present disclosure includes: installing a McPherson shock absorber or a double wishbone shock absorber on a subframe; adjusting the position of an outer point of a front lower control arm or an outer point of a rear lower control arm. Taking into account the differences in the structures of the double wishbone suspension platform and the McPherson suspension platform resulting in different kingpin axes, and the kingpin axis is determined by the installation position of the shock absorber and the position of the front lower control arm outer point 72 or the rear lower control arm outer point 62, thus, after the McPherson shock absorber 2-2 or the double wishbone shock absorber 2-1 is installed on the subframe 1, a preliminary kingpin axis can be obtained, and then the position of the front lower control arm outer point 72 or the rear lower control arm outer point 62 is adjusted, so as to finally obtain a kingpin axis that meets the requirements of the interchangeable rear suspension platform, that is, according to the suspension platform adjustment method disclosed in the present invention, replacement and adjustment of the shock absorber and the control arm can realize replacement between different suspension platforms, and in this process, it is not necessary to replace or adjust other relatively high-cost components such as the lower vehicle body, the subframe 1 and the steering gear 200, which is conducive to reducing development costs.
[0046] In some embodiments, Figure 2 As shown, the step of installing the McPherson shock absorber on the subframe includes S11, determining the position of the lower point of the McPherson shock absorber; and S12, determining the position of the point on the McPherson shock absorber. In other embodiments, as Figure 3 As shown, the step of installing the double wishbone shock absorber on the subframe includes: S13, determining the position of the lower point of the double wishbone shock absorber; and S14, determining the position on the double wishbone shock absorber. According to the characteristics of different suspension platforms and the different structures of the shock absorbers used, the upper point of the McPherson shock absorber 2-2 can be the upper ball head point of the McPherson shock absorber 2-2, and the upper point of the double wishbone shock absorber 2-1 can be the ball head point 81 of the upper control arm connected to the upper wishbone shock absorber 2-1.
[0047] The determination of the lower point position and the upper point position of the shock absorber are respectively described below in an exemplary manner.
[0048] Regarding the lower point position of the McPherson shock absorber 2-2 or the double wishbone shock absorber 2-1, in some embodiments, as Fig.10As shown, the step of determining the position of the lower point of the McPherson shock absorber or the step of determining the position of the lower point of the double wishbone shock absorber may include: making the minimum distance H between the McPherson shock absorber 2-2 or the double wishbone shock absorber 2-1 and the wheel 9 greater than or equal to 20 mm. The shock absorber and the wheel 9 have sufficient design space to help avoid motion interference. In other embodiments, the McPherson shock absorber 2-2 or the double wishbone shock absorber 2-1 is mounted on the subframe via a mounting bracket 22. The mounting bracket 22 may be configured as a cylindrical shape, for example, and the main body of the shock absorber may partially extend into the mounting bracket 22. The minimum distance between the mounting bracket 22 and the wheel 9 is greater than or equal to 20 mm. The shock absorber is mounted on the subframe via the mounting bracket 22, which helps to improve the structural strength of the connection between the shock absorber and the subframe.
[0049] The position of the upper point of the McPherson shock absorber 2-2 or the double wishbone shock absorber 2-1 can be determined based on the position of the lower point of the McPherson shock absorber 2-2 or the double wishbone shock absorber 2-1. Wherein, if the target platform is a McPherson suspension platform, the step of determining the position of the upper point 21 of the McPherson shock absorber includes: determining the Z coordinate of the upper point according to the position of the lower point of the McPherson shock absorber and the height of the McPherson shock absorber itself; determining the Z coordinate of the upper point according to the predetermined kingpin inclination angle Determine the Y coordinate of the upper point; and, based on the predetermined caster angle Determine the X coordinate of the top point.
[0050] like Figure 8 As shown in the figure, the angle between the projection of the real or imaginary steering kingpin axis on the YZ plane and the plumb line when viewed from the front of the car is called the kingpin inclination angle. The distance from the projection of the intersection of the kingpin axis and the ground on the YZ plane to the tire ground contact center is called the kingpin offset distance. The distance from the wheel center to the kingpin axis in the YZ plane is called the kingpin center offset . The effect of kingpin inclination is that when the front wheels rotate, the body of the car tends to rise due to the inward inclination of the kingpin. This increase in the potential energy of the system also generates a self-aligning torque for the front wheels. Generally speaking, when the vehicle is traveling at low speed, the kingpin inclination and kingpin offset play the main self-aligning role. The self-aligning torque at this time is also greater than the self-aligning torque generated by the kingpin castor trail. Therefore, if the low-speed deviation is caused by the kingpin, the kingpin inclination factor is greater.
[0051] like Fig. 9 As shown in the figure, the angle between the projection of the real or imaginary steering kingpin axis on the XZ plane and the plumb line when viewed from the side of the car is called the kingpin caster angle. Among them, the kingpin inclination angle Can be selected in the range of 10°~14°; caster angle The range of the angle can be selected from 3° to 7°. The distance from the projection of the intersection of the kingpin axis and the ground on the XZ plane to the center of the tire ground contact is called the kingpin caster distance. The righting torque generated by caster trail is proportional to the lateral force and the centrifugal acceleration, while the centrifugal acceleration is proportional to the square of the vehicle speed. The righting torque caused by kingpin inclination is independent of the vehicle speed. Therefore, when driving at high speed, the righting torque generated by kingpin caster is greater than that of kingpin inclination.
[0052] After the position of the lower point of the McPherson shock absorber 2-2 is determined, the Z-direction coordinate of the upper point of the McPherson shock absorber 2-2 is determined because the height of the McPherson shock absorber 2-2 itself is determined. and caster angle The Y-direction and X-direction coordinates of the point on the McPherson shock absorber are determined, so that the three coordinates XYZ together determine the position of the point 21 on the McPherson shock absorber.
[0053] Similarly, when the target platform is a double wishbone suspension platform, the difference from determining the position of the upper point 21 of the McPherson shock absorber is that what needs to be determined is the XYZ coordinates of the upper control arm ball head point 81. Specifically, the steps of determining the position of the upper control arm ball head point 81 connected to the double wishbone include: determining the Z coordinates of the upper control arm ball head point according to the position of the lower point of the double wishbone shock absorber, the height of the double wishbone shock absorber itself, and the position of the upper control arm ball head point relative to the double wishbone shock absorber; determining the Z coordinates of the upper control arm ball head point according to the predetermined kingpin inclination angle Determine the Y coordinate of the upper control arm ball head point; and, based on the predetermined caster angle Determine the X coordinate of the upper control arm ball joint point.
[0054] It should be noted that the X direction here refers to the front and rear direction of the vehicle, the Y direction refers to the width direction of the vehicle, and the Z direction refers to the height direction of the vehicle.
[0055] like Figure 4 As shown, the steps of the suspension platform adjustment method may also include: S31, determining a preliminary kingpin axis according to the installation position of the McPherson shock absorber or the double wishbone shock absorber; S32, determining a kingpin parameter according to the preliminary kingpin axis. Further, according to whether the kingpin parameter deviates from a predetermined range value, adjusting the position of the outer point of the front lower control arm or the outer point of the rear lower control arm so that the finally determined kingpin axis meets the predetermined range.
[0056] As mentioned above, the kingpin axis determines the kingpin inclination angle. , caster angle , Kingpin offset and kingpin center offset The kingpin parameters affect the stability of the vehicle. Therefore, after the kingpin axis is initially determined, it is necessary to further determine whether the kingpin parameters corresponding to the kingpin axis meet the design requirements. Among them, the kingpin inclination angle can be selected in the range of 10°~14°; the kingpin caster angle can be selected in the range of 3°~7°; the kingpin offset can be selected in the range of -15~10㎜; the kingpin center offset can be selected in the range of less than or equal to 80㎜.
[0057] Taking the design of the McPherson suspension platform based on the double wishbone suspension platform as an example, the upper point 21 of the McPherson shock absorber is moved 80mm outward in the Y direction and 100mm upward in the Z direction relative to the upper point of the original double wishbone shock absorber. After the McPherson suspension is initially determined, according to the definition of the kingpin axis of the McPherson suspension, the kingpin parameters are obtained as follows: kingpin offset -22.8mm, kingpin center offset The kingpin inclination angle is 82.3 mm. The caster angle is 16.3° is 5.1°. By comparison, it can be seen that the kingpin offset It deviates from the preset range of -15~10mm. According to the sensitivity analysis of the hard point to the kingpin offset, the outer point 62 of the rear lower control arm and the upper point 21 of the shock absorber are the most sensitive. Among them, the upper point 21 of the shock absorber is limited by the tire 9 in the Y direction and has limited adjustable space. Therefore, it is chosen to move the outer point 62 of the rear lower control arm inward by 10mm. The kingpin parameters obtained according to the adjusted kingpin axis are: Kingpin offset -10.5mm, kingpin center offset The kingpin inclination angle is 62.3 mm. The caster angle is 14.3° It is 4.86°. By comparison, it can be seen that the kingpin parameters are all within the predetermined range. The kingpin axis at this time can be determined as the final kingpin axis.
[0058] After adjusting the kingpin parameters to the required range, it is also possible to confirm whether the KC performance index used to measure the stiffness and flexibility of the suspension meets the requirements. For example, the toe-in design target value is established by building a dynamic model for the initially adjusted suspension hard point and analyzing its KC index. It is found to be -1.0deg / 100mm, with a large gradient, while the toe-in design target is 0~-0.6deg / 100mm. Figure 5As shown, the steps of the adjustment method of the suspension platform also include: S4, adjusting the position of the outer point of the stabilizer rod, that is, optimizing the stabilizer rod 4 which has a greater influence on the toe design value. The inner point of the stabilizer rod cannot be adjusted due to the restriction of the steering gear 200 not changing, and only the outer point 51 of the stabilizer rod can be adjusted, which can be achieved by replacing the steering knuckle 5. Through simulation analysis, it is necessary to move the outer point of the steering rod ball head downward by 12mm, and the toe change value is -0.58deg / 100mm. In addition, it can also be confirmed that other KC indicators are also within a reasonable range.
[0059] According to the second aspect of the embodiment of the present disclosure, there is also provided a suspension platform, which is adjusted using the suspension platform adjustment method in any one of the above-mentioned embodiments and has all its beneficial effects, which will not be repeated here.
[0060] like Fig.12 As shown, the suspension platform may further include a floor 300, and the floor 300 may be pre-set with a first opening 310 corresponding to the double wishbone shock absorber 2-1 and a second opening 320 corresponding to the McPherson shock absorber 2-2, for example, the first opening 310 and the second opening 320 may be set on the inner plate of the wheel housing. The position of the inner plate of the wheel housing interferes with the position of the shock absorber, so an opening for avoiding the shock absorber may be opened on the inner plate of the wheel housing. Considering that the suspension platform provided by the present disclosure has the function of being replaced between the double wishbone suspension platform and the McPherson suspension platform, and for the purpose of reducing costs and increasing efficiency, the rear floor is shared between the two platforms, so the first opening 310 corresponding to the double wishbone suspension shock absorber and the second opening 320 corresponding to the McPherson shock absorber may be pre-set to improve the versatility of the floor.
[0061] According to a third aspect of an embodiment of the present disclosure, there is also provided a vehicle, comprising any one of the suspension platforms described above, and having all of the beneficial effects thereof, which will not be described in detail herein.
[0062] Among them, Fig.11 As shown, the suspension design platform includes a steering gear 200, which is arranged in front of or behind the wheel center line WW (up and down direction in the figure). That is, as mentioned above, the difference in the structure of the two suspension platforms leads to different kingpin axes, and the rotational movement of the wheel is performed around the kingpin axis. The kingpins of both suspensions are variable, so for the double wishbone suspension and the McPherson suspension, it is feasible to arrange the steering gear 200 in front of or behind the wheel center line, which can be determined according to the needs of the design space.
[0063] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.
[0064] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.
[0065] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.
Claims
1. A method for adjusting a suspension platform, characterized in that: Suitable for switching between a double wishbone suspension platform and a MacPherson suspension platform, wherein the steps of the suspension platform adjustment method include: Install the McPherson shock absorber or double wishbone shock absorber on the subframe; Adjust the position of the outer point of the front lower control arm or the outer point of the rear lower control arm.
2. The method for adjusting the suspension platform according to claim 1, characterized in that: The step of installing the McPherson shock absorber on the subframe comprises: Determine the position of the lower point of the McPherson shock absorber; Determine the location of the points on the McPherson shock absorber; or, The step of installing the double wishbone suspension shock absorber on the subframe comprises: Determine the location of the lower point of the double wishbone shock absorber; Locate the point on the double wishbone shock absorber.
3. The method for adjusting the suspension platform according to claim 2, characterized in that: The upper point of the McPherson shock absorber is the upper ball head point of the McPherson shock absorber; the upper point of the double wishbone shock absorber is the upper control arm ball head point connected to the double wishbone shock absorber.
4. The method for adjusting the suspension platform according to claim 3, characterized in that: The step of determining the position of a point on the McPherson shock absorber comprises: Determine the Z coordinate of the upper point according to the position of the lower point of the McPherson shock absorber and the height of the McPherson shock absorber itself; Determine the Y coordinate of the upper point according to the predetermined kingpin inclination angle; The X-coordinate of the upper point is determined according to the predetermined caster angle.
5. The method for adjusting the suspension platform according to claim 3, characterized in that: The step of determining the position of a point on the double wishbone shock absorber comprises: Determine the Z coordinate of the ball head point of the upper control arm according to the lower point position of the double wishbone shock absorber, the height of the double wishbone shock absorber itself, and the position of the ball head point of the upper control arm relative to the double wishbone shock absorber; Determine the Y coordinate of the ball head point of the upper control arm according to the predetermined kingpin inclination angle; The X-coordinate of the ball head point of the upper control arm is determined according to the predetermined caster angle.
6. The method for adjusting the suspension platform according to claim 2, characterized in that: The step of determining the position of the lower point of the McPherson shock absorber or the step of determining the position of the lower point of the double wishbone shock absorber comprises: Make the minimum distance between the McPherson shock absorber or double wishbone shock absorber and the wheel greater than or equal to 20 mm.
7. The method for adjusting the suspension platform according to claim 6, characterized in that: The McPherson shock absorber or the double wishbone shock absorber is mounted on the subframe via a mounting bracket, wherein a minimum distance between the mounting bracket and the wheel is greater than or equal to 20 mm.
8. The method for adjusting the suspension platform according to claim 1, characterized in that: The steps of adjusting the suspension platform also include: Determine the preliminary kingpin axis according to the installation position of the McPherson shock absorber or double wishbone shock absorber; The kingpin parameters are determined based on the preliminary kingpin axis.
9. The method for adjusting the suspension platform according to claim 8, characterized in that: According to whether the kingpin parameter deviates from a predetermined range value, the position of the outer point of the front lower control arm or the outer point of the rear lower control arm is adjusted so that the kingpin axis finally determined meets the predetermined range.
10. The method for adjusting the suspension platform according to claim 8, characterized in that: The kingpin parameters include a kingpin inclination angle, a kingpin caster angle, a kingpin offset distance, and a kingpin center offset distance.
11. The method for adjusting the suspension platform according to claim 10, characterized in that: The kingpin inclination angle is selected within the range of 10°~14°; the kingpin caster angle is selected within the range of 3°~7°; the kingpin offset is selected within the range of -15㎜~10㎜; and the kingpin center offset is selected within the range of less than or equal to 80㎜.
12. The method for adjusting the suspension platform according to claim 1, characterized in that: The steps of adjusting the suspension platform also include: Adjust the position of the outer point of the stabilizer bar tie rod.
13. A suspension platform, characterized in that: The suspension platform is adjusted using the suspension platform adjustment method described in any one of claims 1-12.
14. The suspension platform according to claim 13, characterized in that The suspension platform further comprises a floor, which is respectively pre-set with a first opening corresponding to the double wishbone shock absorber and a second opening corresponding to the shock absorber of the MacPherson suspension platform.
15. A vehicle, characterized in that: Comprising the suspension platform as claimed in claim 13 or 14.
16. The vehicle according to claim 15, characterized in that It also includes a steering gear, which is arranged in front of or behind the wheel center line.