A deformation measuring assembly applied to a vehicle engine suspension system

Abstract

The application provides a deformation measurement assembly applied to a car engine suspension system, the suspension system comprising an outer frame, a rubber main spring and a bracket arm; the suspension system is provided with a measurement channel along a first direction, and a measurement surface perpendicular to the axis of the measurement channel is arranged on the top of the suspension system; the first measurement assembly has a measurement hole penetrating through the first measurement assembly along the first direction; the first measurement assembly is arranged on the measurement surface, and the center of the measurement hole is located on the axis of the measurement channel in a free state; the second measurement assembly can penetrate through the measurement hole into the measurement channel along the first direction; when the suspension system is switched from the free state to a static compression state, the first measurement assembly measures the offset parameter of the suspension elastic center of the rubber main spring on the measurement surface; the second measurement assembly measures the moving distance of the suspension elastic center of the rubber main spring to the measurement surface; by measuring the offset parameter and the moving distance of the suspension elastic center of the rubber main spring on the measurement surface, whether the rubber state inside the suspension system meets the standard is confirmed.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of automobile engine suspension systems, in particular to a deformation measurement assembly applied to an automobile engine suspension system. BACKGROUND

[0002] People pay more attention to the requirements of vehicle ride comfort while improving the economic and dynamic indicators of the automobile, so the control of vehicle vibration and noise gradually becomes the primary problem to be solved. The suspension system exists as a part of the connection between the powertrain and the vehicle body, and its main functions are to support the powertrain, reduce the impact of the vibration of the powertrain on the vehicle, and limit the amount of shaking of the powertrain, which plays a very large role in the NVH (Noise, Vibration, Harshness) performance of the vehicle.

[0003] The current suspension system is almost semi-closed design, which cannot observe the internal rubber state, and it is difficult to measure the elastic center position information of the suspension system, and it is impossible to determine whether the internal rubber state of the suspension system meets the standard in the vehicle assembly state. SUMMARY

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a deformation measurement assembly applied to an automobile engine suspension system.

[0005] The present application provides a deformation measurement assembly applied to an automobile engine suspension system, wherein the suspension system comprises:

[0006] an outer frame, a rubber main spring embedded in the outer frame, and a support arm matched with the inside of the rubber main spring; the suspension system is further provided with a measurement channel penetrating the outer frame, the rubber main spring and the support arm in sequence along a first direction; the top of the suspension system is provided with a measurement surface perpendicular to the axis of the measurement channel; the suspension system has at least a free state and a static compression state;

[0007] a measurement assembly, comprising: a first measurement assembly and a second measurement assembly, the first measurement assembly having a measurement hole penetrating it along the first direction; the first measurement assembly is arranged on the measurement surface; in the free state, the center of the measurement hole is located on the axis of the measurement channel; the second measurement assembly can penetrate the measurement hole into the measurement channel along the first direction;

[0008] When the suspension system is switched from the free state to the static compression state, the first measurement assembly is used to measure the offset parameter of the suspension elastic center of the rubber main spring on the measurement surface; the second measurement assembly is used to measure the moving distance of the suspension elastic center of the rubber main spring to the measurement surface.

[0009] According to the technical scheme provided by the embodiment of the present application, the measuring channel comprises: a first measuring hole, a second measuring hole and a third measuring hole arranged in sequence along a first direction; the centers of the first measuring hole, the second measuring hole and the third measuring hole are distributed along the axis of the measuring channel; the first measuring hole is arranged on the top wall of the outer frame; the second measuring hole is arranged on the top wall of the rubber main spring; and the third measuring hole is arranged on the top wall of the supporting arm.

[0010] According to the technical scheme provided by the embodiment of the present application, the second measuring assembly at least comprises:

[0011] The main measuring part is provided with a first scale area along the first direction; in a free state, the value of the first scale area displayed on the main measuring part is a first value; in a static compression state, the value of the first scale area displayed on the main measuring part is a second value; and the moving distance of the suspension elastic center of the rubber main spring to the measuring surface is the difference between the second value and the first value.

[0012] According to the technical scheme provided by the embodiment of the present application, the second measuring assembly further comprises: a positioning part arranged at the end of the main measuring part; the positioning part enters the third measuring hole; and the first scale area is distributed on the main measuring part from the end close to the positioning part to the end away from the positioning part.

[0013] According to the technical scheme provided by the embodiment of the present application, the aperture of the third measuring hole is smaller than that of the second measuring hole, the inner wall of the second measuring hole and the outer side of the top wall of the supporting arm surrounding the third measuring hole jointly form a first step part; the end of the main measuring part and the side wall of the positioning part jointly form an abutting part, and the abutting part and the first step part are matched with each other.

[0014] According to the technical scheme provided by the embodiment of the present application, the aperture of the second measuring hole is smaller than that of the first measuring hole, and a first space allowing the first measuring assembly to deviate is formed in the first measuring hole.

[0015] According to the technical scheme provided by the embodiment of the present application, the deviation parameter at least comprises: a deviation distance;

[0016] The first measuring assembly has a second scale area, and the second scale area is used for measuring the deviation distance of the suspension elastic center of the rubber main spring in the measuring surface.

[0017] According to the technical scheme provided by the embodiment of the present application, the deviation parameter further comprises: a deviation angle;

[0018] The first measuring assembly has a third scale area, and the third scale area is used for measuring the deviation angle of the suspension elastic center of the rubber main spring in the measuring surface.

[0019] The technical scheme provided by the embodiment of the present application further comprises a control device.

[0020] The control device comprises:

[0021] The first acquisition module is configured to acquire a first value when the suspension system is in a free state, and is further configured to acquire a second value when the suspension system is in a static compression state.

[0022] The first operation module is configured to calculate a moving distance of the suspension elastic center of the rubber main spring to the measurement surface as a difference between the second value and the first value.

[0023] The technical scheme provided by the embodiment of the present application further comprises a control device.

[0024] The second acquisition module is further configured to acquire an offset distance and an offset angle of the suspension elastic center of the rubber main spring in the measurement surface when the suspension system is in the static compression state.

[0025] The second operation module is further configured to calculate an offset distance in a second direction and an offset distance in a third direction of the suspension elastic center of the rubber main spring on the measurement surface according to the offset distance and the offset angle; the second direction and the third direction form a plane parallel to the measurement surface, and the first direction is perpendicular to the plane.

[0026] The technical scheme provided by the embodiment of the present application further comprises a control device.

[0027] The technical scheme provided by the embodiment of the present application further comprises a control device.

[0028] Based on the above technical scheme, by adding a measurement channel and a preset measurement surface to the existing suspension system, the offset parameter and the movement distance of the suspension elastic center of the rubber main spring on the measurement surface can be measured when the suspension system is in a static compression state. After obtaining the offset parameter and the movement distance, whether the rubber state inside the suspension system meets the standard can be reflected through the offset parameter and the movement distance. Compared with the prior art, the present application can solve the technical problems that the rubber state inside the suspension system cannot be observed and the elastic center position information of the suspension system cannot be measured in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0029] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments made with reference to the accompanying drawings:

[0030] Figure 1 is a schematic diagram of the suspension system structure in the present application;

[0031] Figure 2 is a sectional view of the suspension system in the present application;

[0032] Figure 3 is a schematic diagram of the measurement assembly structure in the present application;

[0033] Figure 4 is a schematic diagram of the second measurement assembly in the present application;

[0034] Figure 5 is a schematic diagram of the first measurement assembly in the present application;

[0035] Figure 6 is a reading schematic diagram of the first measurement assembly in the present application;

[0036] Figure 7 is a schematic diagram of the second first measurement assembly in the present application;

[0037] Figure 8 is a reading schematic diagram of the second first measurement assembly in the present application;

[0038] Figure 9 is a schematic diagram of the control device in the present application;

[0039] In the figure: 1, outer skeleton; 2, support arm; 3, measurement channel; 4, rubber main spring; 5, first measurement hole; 6, second measurement hole; 7, third measurement hole; 8, first measurement assembly; 9, second measurement assembly; 10, main measurement part; 11, positioning part; 12, first acquisition module; 13, first calculation module; 14, second acquisition module; 15, second calculation module. DETAILED DESCRIPTION

[0040] The application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended for the purpose of interpretation of the related application and are not limiting of the application. In addition, it should be noted that only parts related to the application are shown in the drawings for ease of description.

[0041] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0042] Embodiment 1

[0043] Reference is made to Figures 1-3 A structure diagram of a suspension system and a measuring assembly in a deformation measuring assembly applied to an automobile engine suspension system is provided in the present application, and the suspension system comprises:

[0044] An outer frame 1, a rubber main spring 4 embedded in the outer frame 1, and a support arm 2 matched with the inside of the rubber main spring 4; the suspension system is further provided with a measuring channel 3 penetrating through the outer frame 1, the rubber main spring 4 and the support arm 2 in sequence along a first direction; the suspension system is provided at the top with a measuring surface perpendicular to the axis of the measuring channel 3; the suspension system has at least a free state and a static compression state;

[0045] A measuring assembly, the measuring assembly comprises: a first measuring assembly 8 and a second measuring assembly 9, the first measuring assembly 8 has a measuring hole penetrating through it along the first direction; the first measuring assembly 8 is arranged on the measuring surface; in the free state, the center of the measuring hole is located on the axis of the measuring channel 3; the second measuring assembly 9 can penetrate through the measuring hole into the measuring channel 3 along the first direction;

[0046] When the suspension system is switched from the free state to the static compression state, the first measuring assembly 8 is used to measure the offset parameter of the suspension elastic center of the rubber main spring 4 on the measuring surface; the second measuring assembly 9 is used to measure the moving distance of the suspension elastic center of the rubber main spring 4 to the measuring surface.

[0047] As Figure 1 As shown, the existing suspension system structure currently comprises: an outer frame 1, the outer frame 1 has a space penetrating along a second direction, the rubber main spring 4 is arranged in the space, a first opening is arranged on the side wall of the rubber main spring 4 along the second direction; the support arm 2 has a first end and a second end, the first end enters the first opening along the second direction, the second end is connected with the engine, and the second direction is perpendicular to the first direction;

[0048] The suspension system has three states, namely, a free state, a static compression state and a dynamic change state; the free state is that the rubber on the rubber main spring 4 is in an uncompressed state when the suspension system is not assembled to the whole vehicle; the static compression state is that the rubber on the rubber main spring 4 is in a compressed state when the suspension system is assembled to the whole vehicle and is subjected to the force of the weight of the power assembly and the engine torque; the dynamic change state is that the rubber on the rubber main spring 4 is in a continuously compressed state when the suspension system is subjected to the excitation of the road surface dynamics while being subjected to the force of the weight of the power assembly and the engine torque; when the suspension system is switched from the free state to the static compression state, the rubber deforms, and the deformation parameters of the rubber can reflect whether the posture of the suspension system and the rigidity of the rubber main spring 4 meet the specifications.

[0049] In the existing suspension system, the suspension system can only measure the position parameters of the suspension elastic center of the rubber main spring 4 in the free state, and it is difficult to measure the position parameters of the suspension elastic center in the static compression state when the whole vehicle is assembled, and it is impossible to determine whether the rubber state in the suspension system meets the specifications.

[0050] To solve the above problems, the technical scheme in the embodiment is provided in the present application;

[0051] Reference Figure 1 The suspension system shown in the figure comprises an outer frame 1, a rubber main spring 4 embedded in the outer frame 1 and a support arm 2 matched with the inside of the rubber main spring 4; the suspension system is further provided with a measurement channel 3 penetrating the outer frame 1, the rubber main spring 4 and the support arm 2 in the first direction in sequence; the top of the suspension system is provided with a measurement surface perpendicular to the axis of the measurement channel 3; the measurement channel 3 is shown by reference numeral 3 in the figure, and optionally, as shown in the figure, Figure 2 The measurement channel 3 comprises first, second and third measurement holes 5, 6 and 7 arranged in sequence, and the centers of the first, second and third measurement holes 5, 6 and 7 are distributed along the axis of the measurement channel 3;

[0052] The top wall of the outer frame 1 is set as the measurement surface, and optionally, in the view angle in the figure, the measurement surface is parallel to the horizontal plane; the first direction is perpendicular to the measurement surface; the first direction is shown as a in the figure; Figure 1

[0053] Reference Figure 3 ​The measurement assembly shown includes a first measurement assembly 8 and a second measurement assembly 9, the second measurement assembly 9 is inserted into the measurement hole of the first measurement assembly 8, the first measurement assembly 8 is used to measure the offset parameter of the suspension elastic center of the rubber main spring 4 on the measurement surface, and the second measurement assembly 9 is used to measure the moving distance of the suspension elastic center of the rubber main spring 4 to the measurement surface.

[0054] Based on the above structure, the specific measurement process is as follows:

[0055] In the free state, the second measurement assembly 9 is inserted into the measurement hole of the first measurement assembly 8, and the second measurement assembly 9 is inserted into the measurement channel 3, at this time the first measurement assembly 8 is arranged on the measurement surface and the center of the measurement hole is located on the axis of the measurement channel 3, at this time the second measurement assembly 9 measures the first distance of the suspension elastic center to the measurement surface.

[0056] Switch to the static compression state, insert the second measurement assembly 9 into the measurement hole of the first measurement assembly 8, and insert the second measurement assembly 9 into the measurement channel 3, at this time the first measurement assembly 8 measures the offset parameter of the suspension elastic center on the measurement surface, and the second measurement assembly 9 measures the second distance of the suspension elastic center to the measurement surface, and the moving distance is the difference between the second distance and the first distance.

[0057] In summary, by adding a measurement channel and a preset measurement surface to the existing suspension system, the offset parameter and the moving distance of the suspension elastic center of the rubber main spring 4 on the measurement surface can be measured when the suspension system is switched from the free state to the static compression state. After obtaining the offset parameter and the moving distance, it can be determined whether the rubber state inside the suspension system meets the standard through the offset parameter and the moving distance. Compared with the prior art, the technical problems of being unable to observe the internal rubber state and being difficult to measure the elastic center position information of the suspension system in the prior art can be solved.

[0058] In some embodiments, the measurement channel 3 includes: a first measurement hole 5, a second measurement hole 6 and a third measurement hole 7 arranged in sequence along the first direction; the centers of the first measurement hole 5, the second measurement hole 6 and the third measurement hole 7 are distributed along the axis of the measurement channel 3; the first measurement hole 5 is arranged on the top wall of the exoskeleton 1; the second measurement hole 6 is arranged on the top wall of the rubber main spring 4; and the third measurement hole 7 is arranged on the top wall of the supporting arm 2.

[0059] Among them, as Figure 2As shown, the first measuring hole 5, the second measuring hole 6 and the third measuring hole 7 jointly constitute the measuring channel 3; in the free state, the suspended elastic center is located on the axis of the first measuring hole 5, the second measuring hole 6 and the third measuring hole 7; in the static compression state, the engine drives the support arm 2 to move, and then drives the suspended elastic center to change, at this time, the position of the first measuring hole 5 is unchanged, and the second measuring hole 6 and the third measuring hole 7 move with the suspended elastic center; that is, the suspended elastic center is on the axis of the second measuring hole 6 and the third measuring hole 7.

[0060] Specifically, under the action of external force in any direction, the suspended elastic center of the rubber main spring 4 only has translational motion, and does not have rotational motion.

[0061] In some embodiments, the second measuring assembly 9 at least includes:

[0062] The main measuring part 10 is provided with a first scale area in the first direction; in the free state, the first scale area value displayed on the main measuring part 10 is a first value; in the static compression state, the first scale area value displayed on the main measuring part 10 is a second value; the moving distance of the suspended elastic center of the rubber main spring 4 to the measuring surface is the difference between the second value and the first value.

[0063] In some embodiments, as shown in the figure, Figure 4 The second measuring assembly 9 is a millimeter scale, and the second measuring assembly 9 can be a ruler.

[0064] As shown in the figure, Figure 4 The first scale area is ⑤.

[0065] In the free state, the second measuring assembly 9 is placed in the measuring channel 3, at this time, the scale at which the measuring surface is located is the first distance C1; in the static compression state, the scale at which the measuring surface is located is the second distance C2; the moving distance C of the suspended elastic center of the rubber main spring 4 to the measuring surface is calculated by formula (I).

[0066] C=C1-C2(I);

[0067] It is known that in the static compression state, the external force is F, and the static stiffness K of the rubber main spring 4 is calculated by formula (II).

[0068] K=F / C(II);

[0069] According to the calculated static stiffness, in combination with the static stiffness standard formulated when the rubber main spring 4 is designed, it is judged whether the static stiffness in this state meets the standard, so as to identify the problem as soon as possible and investigate and rectify.

[0070] In some embodiments, the second measuring assembly 9 further comprises a positioning portion 11 arranged at the end of the main measuring portion 10; the positioning portion 11 enters the third measuring hole 7; the first scale is arranged on the main measuring portion 10 from the end close to the positioning portion 11 to the end away from the positioning portion 11.

[0071] In some embodiments, the second measuring assembly 9 is composed of the main measuring portion 10 and the positioning portion 11, the positioning portion 11 is smaller than the main measuring portion 10, and in the measurement, the second measuring assembly 9 is arranged with the end of the positioning portion 11 entering the measuring channel 3 until the positioning portion 11 is clamped with the third measuring hole 7, and the second measuring assembly 9 is positioned and starts to measure the distance from the suspended elastic center to the measuring surface.

[0072] In some embodiments, the third measuring hole 7 has a smaller diameter than the second measuring hole 6, the inner wall of the second measuring hole 6 and the outer side of the top wall of the supporting arm 2 surrounding the third measuring hole 7 jointly form a first step portion; the end of the main measuring portion 10 and the side wall of the positioning portion 11 jointly form an abutting portion, and the abutting portion and the first step portion are matched with each other.

[0073] In some embodiments, the third measuring hole 7 has a smaller diameter than the second measuring hole 6, the size of the second measuring hole 6 matches the main measuring portion 10, and the size of the third measuring hole 7 matches the positioning portion 11; in the measurement, the second measuring assembly 9 is arranged to enter the measuring channel 3, the positioning portion 11 enters the third measuring hole 7, and the main measuring portion 10 is partially arranged in the second measuring hole 6; the abutting portion jointly formed by the side wall of the main measuring portion 10 and the positioning portion 11 abuts against the first step portion, so that the second measuring assembly 9 can no longer move downward, and the positioning of the second measuring assembly 9 is completed; at this time, the scale of the intersection of the main measuring portion 10 and the measuring surface is the distance from the suspended elastic center to the measuring surface.

[0074] In some embodiments, the second measuring hole 6 has a smaller diameter than the first measuring hole 5, and the first measuring hole 5 forms a first space capable of allowing the first measuring assembly 8 to deviate.

[0075] In some embodiments, the first measurement hole 5 is arranged on the top wall of the exoskeleton 1; the second measurement hole 6 is arranged on the top wall of the rubber main spring 4; the third measurement hole 7 is arranged on the top wall of the supporting arm 2; in the static compression state, the engine drives the supporting arm 2 to move, thereby changing the suspension elastic center; at this time, the position of the first measurement hole 5 is unchanged, and the second measurement hole 6 and the third measurement hole 7 move with the suspension elastic center; the first measurement hole 5 forms a first space for the first measurement assembly 8 to move, so that the measurement assembly can move with the elastic center when measuring in the static compression state.

[0076] In some embodiments, the offset parameter at least includes an offset distance.

[0077] The first measurement assembly 8 has a second scale area for measuring the offset distance of the suspension elastic center of the rubber main spring 4 in the measurement plane.

[0078] In some embodiments, the offset parameter further includes an offset angle.

[0079] The first measurement assembly 8 has a third scale area for measuring the offset angle of the suspension elastic center of the rubber main spring 4 in the measurement plane. By the offset distance and the offset angle of the suspension elastic center of the rubber main spring 4 in the measurement plane, the offset distance in the second direction and the offset distance in the third direction of the suspension elastic center of the rubber main spring 4 on the measurement plane are calculated; combined with the offset distance in the second direction, the offset distance in the third direction, the offset distance in the measurement plane and the offset angle, etc. Parameter information, judge whether the position and posture of the suspension system meets the specifications, and then judge whether the rubber state inside the suspension system meets the standards.

[0080] Specifically, as Figure 5 shown is a first measurement assembly 8, which is a circular scale; the second scale area on the circular scale is a millimeter distance scale; and the third scale area on the circular scale is an angle scale; ⑥ in the figure is the second scale area, and ⑦ is the third scale area.

[0081] As Figure 6 shown, the offset distance S xy of the suspension elastic center of the rubber main spring 4 in the measurement plane is read as A; and the offset angle is θ.

[0082] The offset distance S x of the suspension elastic center of the rubber main spring 4 in the second direction on the measurement plane is calculated by formula (three); the second direction is Figure 2 shown as b.

[0083] S x=A*cosθ (III);

[0084] The offset distance S of the suspension elastic center of the rubber main spring 4 along the third direction on the measuring surface is calculated using formula (iii). y The third party is... Figure 2 c as shown;

[0085] S y =A*sinθ (IV);

[0086] The plane formed by the second direction and the third direction is parallel to the measurement surface, and the first direction is perpendicular to the plane;

[0087] In this implementation, such as Figure 6 As shown, the offset distance S xy The value is 14.5mm, and the offset angle is 301 degrees; the calculation is converted to an angle less than 90 degrees, therefore the offset angle is 301-270=31 degrees;

[0088] The offset distance S of the suspension elastic center of the rubber main spring 4 along the second direction on the measuring surface x =14.5 * cos31 = 12.4;

[0089] The offset distance S of the suspension elastic center of the rubber main spring 4 along the third direction on the measuring surface y =14.5*sin31=7.4;

[0090] In some embodiments, such as Figure 7 The image shows another type of first measuring component 8, which is a circular ruler. The fourth scale area on the circular ruler is set along the second direction, and the fifth scale area is set along the third direction.

[0091] like Figure 8 As shown, the scale readings of the two endpoints of the first measuring hole 5 along the second direction are A3 and A4, respectively; the scale readings of the two endpoints of the first measuring hole 5 along the third direction are A1 and A2, respectively; in the figure, ① is A1; ② is A2; ③ is A3; ④ is A4;

[0092] The offset distance S of the suspension elastic center of the rubber main spring 4 along the second direction on the measuring surface is calculated using formula (5). x

[0093] S x =|A3-A4| / 2 (V);

[0094] The offset distance S of the suspension elastic center of the rubber main spring 4 along the third direction on the measuring surface is calculated using formula (vi). y ;

[0095] S y =|A1-A2| / 2 (VI);

[0096] The offset distance S of the suspension elastic center of the rubber main spring 4 in the measuring plane is calculated using formula (VII). xy

[0097]

[0098] The offset angle θ of the suspension elastic center of the rubber main spring 4 in the measurement plane is calculated using formula (8);

[0099] θ = arctan(S) x / S y ) (eight);

[0100] In this embodiment, as Figure 8 As shown, the readings are: A1 = 5.5; A2 = -14; A3 = -13.5; A4 = 7;

[0101] Calculate the offset distance S of the suspension elastic center of the rubber main spring 4 along the second direction on the measuring surface. x =|-13.5-7| / 2 = 10.25;

[0102] Calculate the offset distance S of the suspension elastic center of the rubber main spring 4 along the third direction on the measuring surface. y =|5.5+14| / 2=9.75;

[0103] Calculate the offset distance of the suspension elastic center of the rubber main spring 4 within the measuring plane.

[0104]

[0105] Calculate the offset angle θ of the suspension elastic center of the rubber main spring 4 in the measurement plane: θ = arctan(10.25 / 9.75) = 46.39718103;

[0106] Based on the calculated offset distance in the second direction, the offset distance in the third direction, the offset distance in the measurement plane, and the offset angle, it is determined whether the position and attitude of the suspension system meet the specifications.

[0107] In some embodiments, it further includes: a control device;

[0108] The control device includes:

[0109] The first acquisition module 12 is configured to acquire a first value when the suspension system is in a free state, and the first acquisition module 12 is also configured to acquire a second value when the suspension system is in a static compressed state.

[0110] The first operation module 13 is configured to calculate the moving distance of the suspension elastic center of the rubber main spring 4 to the measuring surface as the difference between the second value and the first value.

[0111] Specifically, as shown in Figure 9 The first collection module 12 is connected with the first operation module 13. The first collection module 12 is configured to collect the first value when the suspension system is in the free state. The first collection module 12 is also configured to collect the second value when the suspension system is in the static compression state. The first operation module 13 is configured to calculate the moving distance of the suspension elastic center of the rubber main spring 4 to the measuring surface as the difference between the second value and the first value.

[0112] In some embodiments, the control device further comprises:

[0113] The second collection module 14 is also configured to collect the offset distance and the offset angle of the suspension elastic center of the rubber main spring 4 in the measuring surface when the suspension system is in the static compression state.

[0114] The second operation module 15 is also configured to calculate the offset distance in the second direction and the offset distance in the third direction of the suspension elastic center of the rubber main spring 4 on the measuring surface according to the offset distance and the offset angle. The second direction and the third direction form a plane parallel to the measuring surface, and the first direction is perpendicular to the plane.

[0115] Specifically, the second collection module 14 is connected with the second operation module 15. The second collection module 14 is also configured to collect the offset distance and the offset angle of the suspension elastic center of the rubber main spring 4 in the measuring surface when the suspension system is in the static compression state. The second operation module 15 is also configured to calculate the offset distance in the second direction and the offset distance in the third direction of the suspension elastic center of the rubber main spring 4 on the measuring surface according to the offset distance and the offset angle. The second direction and the third direction form a plane parallel to the measuring surface, and the first direction is perpendicular to the plane.

[0116] The above description is only the preferred embodiment of the present application and the explanation of the technical principles. It should be understood by those skilled in the art that the scope of the protection of the present application is not limited to the technical solutions formed by the specific combinations of the above technical features. It should also cover other technical solutions formed by the combinations of the above technical features or their equivalent features without departing from the concept of the present application. For example, the technical solutions formed by the mutual replacements of the above features and the technical features disclosed in the present application (but not limited to) with similar functions.

Claims

1. A deformation measurement assembly applied to a vehicle engine suspension system, characterized in that the suspension system comprises an outer frame (1), a rubber main spring (4) embedded in the outer frame (1), and a bracket (2) matched with the inside of the rubber main spring (4); the suspension system is further provided with a measurement channel (3) sequentially penetrating the outer frame (1), the rubber main spring (4), and the bracket (2) along a first direction; the top of the suspension system is provided with a measurement surface perpendicular to the axis of the measurement channel (3); the suspension system has at least a free state and a static compression state; the measurement assembly comprises a first measurement assembly (8) and a second measurement assembly (9), the first measurement assembly (8) has a measurement hole penetrating it along the first direction; the first measurement assembly (8) is arranged on the measurement surface; in the free state, the center of the measurement hole is located on the axis of the measurement channel (3); the second measurement assembly (9) can penetrate the measurement hole into the measurement channel (3) along the first direction; when the suspension system is switched from the free state to the static compression state, the first measurement assembly (8) is used to measure the offset parameter of the suspension elastic center of the rubber main spring (4) on the measurement surface; the second measurement assembly (9) is used to measure the moving distance of the suspension elastic center of the rubber main spring (4) to the measurement surface.

2. The deformation measurement assembly applied to the vehicle engine suspension system according to claim 1, characterized in that the measurement channel (3) comprises a first measurement hole (5), a second measurement hole (6), and a third measurement hole (7) arranged in sequence along the first direction; the centers of the first measurement hole (5), the second measurement hole (6), and the third measurement hole (7) are distributed along the axis of the measurement channel (3); the first measurement hole (5) is arranged on the top wall of the outer frame (1); the second measurement hole (6) is arranged on the top wall of the rubber main spring (4); and the third measurement hole (7) is arranged on the top wall of the bracket (2).

3. The deformation measurement assembly applied to the vehicle engine suspension system according to claim 2, characterized in that the second measurement assembly (9) at least comprises: a main measurement part (10) having a first scale area arranged thereon along the first direction; in the free state, the first scale area displayed on the main measurement part (10) has a first value; in the static compression state, the first scale area displayed on the main measurement part (10) has a second value; and the moving distance of the suspension elastic center of the rubber main spring (4) to the measurement surface is the difference between the second value and the first value.

4. The deformation measurement assembly applied to the vehicle engine suspension system according to claim 3, characterized in that the second measurement assembly (9) further comprises a positioning part (11) arranged at the end of the main measurement part (10); the positioning part (11) enters the third measurement hole (7); and the first scale area is distributed on the main measurement part (10) from the end close to the positioning part (11) to the end away from the positioning part (11). ​ ​ ​ ​ 5. The deformation measurement assembly applied to the engine suspension system of an automobile according to claim 4, characterized in that the third measurement hole (7) has a smaller diameter than the second measurement hole (6), and the inner wall of the second measurement hole (6) and the outer side of the top wall of the bracket (2) surrounding the third measurement hole (7) jointly form a first step portion; the end of the main measurement portion (10) and the side wall of the positioning portion (11) jointly form an abutting portion, which is matched with the first step portion.

6. The deformation measurement assembly applied to the engine suspension system of an automobile according to any one of claims 3-5, characterized in that the second measurement hole (6) has a smaller diameter than the first measurement hole (5), and the first measurement hole (5) forms a first space allowing the first measurement assembly (8) to shift.

7. The deformation measurement assembly applied to the engine suspension system of an automobile according to claim 6, characterized in that the shift parameter at least includes a shift distance; the first measurement assembly (8) has a second scale area for measuring the shift distance of the suspension elastic center of the rubber main spring (4) in the measurement plane.

8. The deformation measurement assembly applied to the engine suspension system of an automobile according to claim 7, characterized in that the shift parameter further includes a shift angle; the first measurement assembly (8) has a third scale area for measuring the shift angle of the suspension elastic center of the rubber main spring (4) in the measurement plane.

9. The deformation measurement assembly applied to the engine suspension system of an automobile according to claim 8, characterized in that it further comprises a control device, which comprises: a first acquisition module (12) configured to acquire a first value when the suspension system is in a free state, and further configured to acquire a second value when the suspension system is in a static compression state; a first calculation module (13) configured to calculate the movement distance of the suspension elastic center of the rubber main spring (4) to the measurement plane as the difference between the second value and the first value.

10. The deformation measurement assembly applied to the engine suspension system of an automobile according to claim 9, characterized in that the control device further comprises: a second acquisition module (14) further configured to acquire the shift distance and the shift angle of the suspension elastic center of the rubber main spring (4) in the measurement plane when the suspension system is in a static compression state; a second calculation module (15) further configured to calculate the shift distance in a second direction and the shift distance in a third direction of the suspension elastic center of the rubber main spring (4) in the measurement plane according to the shift distance and the shift angle; the plane formed by the second direction and the third direction is parallel to the measurement plane, and the first direction is perpendicular to the plane. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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