Suspension test device

Abstract

The utility model discloses a suspension test device, which is used for verifying a suspension system and comprises a quarter suspension equivalent module, the quarter suspension equivalent module comprises a suspension support, a wheel and a vehicle body equivalent part, and the vehicle body equivalent part is provided with a first installation part used for being connected with the suspension system. The wheel is provided with a second installation part used for being connected with a suspension system, the suspension test device has a motion state and a locking state, in the motion state, the vehicle body equivalent part is slidably arranged on the suspension support in the vertical direction, and in the locking state, the vehicle body equivalent part is fixed to the suspension support; and the actuator module comprises an actuator, and the actuator is connected with the wheels and used for pushing the wheels. According to the suspension test device provided by the utility model, an inertia reaction test of a suspension system can be carried out, and a fixed reaction test of the suspension system can also be carried out, so that tool arrangement in the verification process of the suspension system can be reduced, and verification cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a suspension test device. Background Art

[0002] When testing and verifying the suspension system of a vehicle, inertia reaction force tests and fixed reaction force tests are usually performed on the test platform. The inertia reaction force test is a verification of the suspension system under dynamic conditions, which is the condition in which the suspension system is subjected to reaction force caused by the inertia of the vehicle's movement during the vehicle's driving. The fixed reaction force test is a verification of the state of the suspension system when it is in a restricted state and is impacted by a load. In the related technology, when performing inertia reaction force tests and fixed reaction force tests on the suspension system, it is necessary to build test fixtures separately, and the verification cost is relatively high. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a suspension test device, which can reduce the verification cost of the suspension system.

[0004] According to the suspension test device of the utility model, it is used for suspension system verification, and the suspension test device includes: a quarter suspension equivalent module, the quarter suspension equivalent module includes a suspension support, a wheel and a body equivalent part, the body equivalent part is provided with a first mounting part for connecting to the suspension system, and the wheel is provided with a second mounting part for connecting to the suspension system, the suspension test device has a moving state and a locked state, in the moving state, the body equivalent part is slidably arranged on the suspension support in the up and down directions, and in the locked state, the body equivalent part is fixed on the suspension support; an actuator module, the actuator module includes an actuator, and the actuator is connected to the wheel for pushing the wheel.

[0005] According to the suspension test device of the utility model, by setting the motion state and the locking state, the inertia reaction force test of the suspension system can be carried out in the motion state, and the fixed reaction force test of the suspension system can be carried out in the locking state. Therefore, the tooling layout in the suspension system verification process can be reduced and the suspension system verification cost can be reduced.

[0006] According to some embodiments of the utility model, the quarter suspension equivalent module also includes: a first limit block and a second limit block, the first limit block and the second limit block are arranged on the suspension support and are respectively located on the upper and lower sides of the vehicle body equivalent part, the positions of the first limit block and the second limit block on the suspension support are adjustable, in the moving state, the vehicle body equivalent part can be slidably arranged between the first limit block and the second limit block, and in the locked state, the upper and lower sides of the vehicle body equivalent part are respectively abutted against the first limit block and the second limit block.

[0007] According to some embodiments of the utility model, a first slide rail extending up and down is provided on the suspension support, a first slider is provided on the first slide rail, and the vehicle body equivalent part is connected to the first slider.

[0008] According to some embodiments of the utility model, the suspension test device also includes: a loading module, the loading module includes: a loading assembly, the loading assembly includes: a loading bracket, a loading plate and a loading connecting rod, the loading plate is slidably arranged on the loading bracket along the up and down directions, the wheel is supported on the loading plate, and the loading connecting rod is connected between the loading plate and the actuator.

[0009] According to some embodiments of the utility model, the loading assembly also includes: a disk support and a sliding bearing, the disk support includes a supporting platform and a supporting rod, the supporting platform extends in a horizontal direction, the loading disk is arranged on the supporting platform, the supporting rod extends up and down and the upper end is connected to the supporting platform, the sliding bearing is connected to the loading bracket, and the support rod is arranged in the sliding bearing.

[0010] According to some embodiments of the utility model, a second slide rail extending along the axis direction of the wheel is provided on the support platform, a second slider is provided on the second slide rail, and the loading plate is connected to the second slider.

[0011] According to some embodiments of the utility model, the loading bracket is provided with a first support shaft and a mounting hole, and the axis of the first support shaft extends in a horizontal direction; the loading assembly also includes: an angle adjustment disk, the angle adjustment disk is vertically arranged, the sliding bearing is connected to one side of the angle adjustment disk in the horizontal direction, a first axial hole and a first fixing hole are formed on the angle adjustment disk, the first fixing hole is an arc-shaped hole extending around the axis of the first support shaft, the angle adjustment disk is sleeved on the first support shaft through the first axial hole, and a first fastener passes through the first fixing hole and the mounting hole to fix the angle adjustment disk on the loading bracket.

[0012] According to some embodiments of the utility model, the loading module also includes: a connecting component, the connecting component includes a connecting bracket, a first arm and a second arm, the connecting bracket is provided with a second support shaft, the first arm is formed with a second axial hole, the second arm is formed with a third axial hole, the first arm is sleeved on the second support shaft through the second axial hole, the second arm is sleeved on the second support shaft through the third axial hole, the first arm and the second arm are connected and the relative angle is adjustable, the first arm is also provided with a first connecting portion arranged at an interval with the second axial hole, the actuator is connected to the first connecting portion, the second arm is also provided with a second connecting portion arranged at an interval with the third axial hole, and the loading connecting rod is connected to the second connecting portion.

[0013] According to some embodiments of the utility model, the first arm includes a first connecting arm and a first adjusting arm, the first adjusting arm is connected to the first connecting arm, the second arm includes a second connecting arm and a second adjusting arm, the second adjusting arm is connected to the second connecting arm, the second axial hole is formed on the first connecting arm, the third axial hole is formed on the second connecting arm, a second fixing hole is formed on the first adjusting arm, and a third fixing hole is formed on the second adjusting arm, the second fixing hole and the third fixing hole are both arc holes extending around the axis of the second support shaft, and a second fastener passes through the second fixing hole and the third fixing hole to fix the first adjusting arm and the second adjusting arm in connection.

[0014] According to some embodiments of the utility model, there are two first arms, and the two first arms are arranged at intervals in the axial direction of the second support shaft. An input shaft hole is formed on the first connecting arm, and the input shaft hole extends along the extension direction of the first connecting arm. The connecting component also includes: an input shaft, and the two ends of the input shaft are respectively arranged in the input shaft holes of the two first arms, and the position of the input shaft in the input shaft hole is adjustable, and the input shaft is connected to the actuator; there are two second arms, and the two second arms are arranged at intervals in the axial direction of the second support shaft, and an output shaft hole is formed on the second connecting arm, and the output shaft hole extends along the extension direction of the second connecting arm. The connecting component also includes: an output shaft, and the two ends of the output shaft are respectively arranged in the output shaft holes of the two second arms, and the position of the output shaft in the output shaft hole is adjustable, and the output shaft hole is connected to the loading connecting rod.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1is a schematic diagram of a suspension test device according to an embodiment of the utility model;

[0017] Figure 2 yes Figure 1 Schematic diagram of the quarter suspension equivalent module shown in ;

[0018] Figure 3 yes Figure 2 An exploded view of the quarter suspension equivalent module shown in ;

[0019] Figure 4 yes Figure 3 An enlarged view of A shown in FIG.

[0020] Figure 5 yes Figure 1 A schematic diagram of the loading assembly shown in ;

[0021] Figure 6 yes Figure 5 An exploded view of the loading assembly shown in ;

[0022] Figure 7 yes Figure 1 Schematic diagram of the connected components shown in;

[0023] Figure 8 yes Figure 7 A schematic diagram of the first arm and the second arm shown in;

[0024] Fig. 9 yes Figure 8 Another schematic diagram of the first arm and the second arm shown in;

[0025] Fig.10 yes Figure 8 Yet another schematic diagram of the first arm and the second arm shown in ;

[0026] Fig.11 yes Figure 1 A schematic diagram of an actuator module shown in ;

[0027] Fig.12 yes Figure 1 A schematic diagram of a suspension control module shown in ;

[0028] Fig.13 is a schematic diagram of a suspension test device and a control module according to an embodiment of the utility model;

[0029] Fig.14 is a control logic diagram of a verification process of a suspension test device according to an embodiment of the utility model;

[0030] Fig.15 It is a flow chart of the verification process of the suspension test device according to the embodiment of the utility model.

[0031] Reference numerals:

[0032] 100. Suspension test device;

[0033] 10. One-quarter suspension equivalent module; 11. Suspension support; 111. First stop block; 1111. Fourth fixing hole; 112. Second stop block; 1121. Sixth fixing hole; 113. First slide rail; 114. First slide block; 12. Suspension system; 13. Wheel; 14. Vehicle body equivalent part; 15. Counterweight;

[0034] 20. Actuator module; 21. Actuator; 22. Actuator bracket; 23. Actuator positioning plate;

[0035] 30. Loading module; 31. Loading assembly; 311. Loading bracket; 3111. First support shaft; 3112. Mounting hole; 312. Loading disk; 313. Loading connecting rod; 314. Disk support; 3141. Support platform; 3142. Support rod; 3143. Second slide rail; 3144. Second slider; 315. Sliding bearing; 316. Angle adjustment disk; 3161. First shaft hole; 3162. First fixing hole; 3163. First fixing member;

[0036] 32. Connecting assembly; 321. Connecting bracket; 3211. Second supporting shaft; 322. First arm; 3221. First connecting arm; 32211. Input shaft hole; 3222. First adjusting arm; 32221. Second fixing hole; 3223. Input shaft; 323. Second arm; 3231. Second connecting arm; 32311. Output shaft hole; 3232. Second adjusting arm; 32321. Third fixing hole; 3233. Output shaft; 324. Second fastener;

[0037] 40. Suspension control module; 41. Host computer; 42. Suspension controller; 43. Power distribution unit; 44. Equivalent power supply. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0039] Reference below Figure 1-Figure 15 A suspension test device 100 according to an embodiment of the present invention is described.

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Fig.11 As shown, a suspension test device 100 according to an embodiment of the present invention is used for verifying a suspension system 12 . The suspension test device 100 includes: a quarter suspension equivalent module 10 and an actuator module 20 .

[0041] Specifically, the quarter suspension equivalent module 10 includes a suspension support 11, a wheel 13 and a body equivalent part 14. The body equivalent part 14 is provided with a first mounting portion for connecting to the suspension system 12, and the wheel 13 is provided with a second mounting portion for connecting to the suspension system 12. The suspension test device 100 has a moving state and a locked state. In the moving state, the body equivalent part 14 is slidably arranged on the suspension support 11 in the up and down directions. In the locked state, the body equivalent part 14 is fixed on the suspension support 11. The actuator module 20 includes an actuator 21, and the actuator 21 is connected to the wheel 13 for pushing the wheel 13.

[0042] Among them, the connection state between the first mounting part and the suspension system 12 is the same as the connection state between the body and the suspension system 12 on the actual vehicle, the connection state between the second mounting part and the suspension system 12 is the same as the connection state between the wheel 13 and the suspension system 12 on the actual vehicle, and the suspension system 12 may include a traditional shock absorber, and the suspension system 12 may also include an active shock absorber equipped with a motor.

[0043] When in motion, the actuator 21 pushes the wheel 13 to move to simulate the load on the wheel 13 during vehicle driving. Driven by the wheel 13, the vehicle body equivalent part 14 moves in the up and down directions on the suspension bracket. In this way, the state of the suspension system 12 when the wheel 13 is impacted during vehicle driving can be simulated. Therefore, the inertial reaction force test of the suspension system 12 can be carried out through the suspension test device 100.

[0044] During the inertia reaction force test, some design parameters can be verified on the suspension test device 100. For example, the control algorithm of the suspension system can be tested by the suspension test device 100, and the durability and impact resistance of the suspension system can also be verified by the suspension test device 100. The amplitude-frequency characteristics of the suspension system can also be obtained by the suspension test device 100.

[0045] In the locked state, the suspension system 12 is in a restricted state, and the actuator 21 pushes the wheel 13 to apply a load to the suspension system 12, thereby, a fixed reaction force test of the suspension system 12 can be performed by the suspension test device 100. In the fixed reaction force test, parameters such as the amplitude-frequency characteristics of the damping spring, the strength of the suspension system 12, the damping stroke of the suspension system 12, and the damping of the suspension system 12 can be obtained.

[0046] According to the suspension test device 100 of the embodiment of the utility model, by setting the motion state and the locking state, the inertia reaction force test of the suspension system can be carried out in the motion state, and the fixed reaction force test of the suspension system can be carried out in the locking state. Therefore, the tooling layout in the suspension system verification process can be reduced, and the verification cost of the suspension system can be reduced.

[0047] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the vehicle body equivalent part 14 is also provided with a counterweight 15. By providing the counterweight 15, the load of the vehicle body acting on the suspension system 12 can be simulated, thereby improving the accuracy of the test results. During the design process, the weight of the counterweight 15 can be adjusted, thereby verifying more vehicle models.

[0048] In some embodiments of the present invention, Figure 2-Figure 4 As shown, the quarter suspension equivalent module 10 also includes: a first limit block 111 and a second limit block 112, the first limit block 111 and the second limit block 112 are arranged on the suspension support 11 and are respectively located on the upper and lower sides of the vehicle body equivalent part 14, the positions of the first limit block 111 and the second limit block 112 on the suspension support 11 are adjustable, in the moving state, the vehicle body equivalent part 14 is slidably arranged between the first limit block 111 and the second limit block 112, in the locked state, the upper and lower sides of the vehicle body equivalent part 14 are respectively abutted against the first limit block 111 and the second limit block 112.

[0049] In this way, in the moving state, the first limit block 111 and the second limit block 112 can limit the displacement of the body equivalent part 14 during the movement in the up and down directions to avoid excessive displacement of the body equivalent part 14. In the locked state, the first limit block 111 and the second limit block 112 are adjusted to the upper and lower sides of the body equivalent part 14 and locked. The first limit block 111 and the second limit block 112 can limit the displacement of the body equivalent part 14 on the upper and lower sides of the body equivalent part 14, thereby fixing the body equivalent part 14 on the suspension bracket, and further realizing the fixation of the suspension system 12 in the up and down directions.

[0050] Preferably, there are two first limit blocks 111 , which are at the same height and spaced apart, and there are two second limit blocks 112 , which are at the same height and spaced apart.

[0051] In some embodiments of the present invention, Figure 2-Figure 4As shown, a fourth fixing hole 1111 is formed on the first limit block 111, and a plurality of fifth fixing holes are formed on the suspension bracket, and the plurality of fifth fixing holes are arranged at intervals in the up and down directions, and the fastening bolt passes through the fourth fixing hole 1111 and the fifth fixing hole to fix the first limit block 111 on the suspension bracket, thereby, the first limit block 111 can be fixed on the suspension bracket, and when the fastening bolt passes through the fifth fixing holes of different heights, the position of the first limit block 111 on the suspension bracket can be adjusted, and the fastening bolt is easy to disassemble, so as to facilitate the position adjustment of the first limit block 111 on the suspension bracket, wherein the fourth fixing hole 1111 is a long hole extending up and down, so that the position of the first limit block 111 can be fine-tuned by adjusting the up and down position of the fastening bolt in the fourth fixing hole 1111.

[0052] A sixth fixing hole 1121 is formed on the second limit block 112, and a plurality of seventh fixing holes are formed on the suspension bracket. The plurality of seventh fixing holes are arranged at intervals in the up and down directions. The fastening bolts pass through the sixth fixing hole 1121 and the seventh fixing hole to fix the second limit block 112 on the suspension bracket. Thus, the second limit block 112 can be fixed on the suspension bracket. When the fastening bolts pass through the seventh fixing holes at different heights, the position of the second limit block 112 on the suspension bracket can be adjusted. The fastening bolts are easy to disassemble, which facilitates the position adjustment of the second limit block 112 on the suspension bracket. The sixth fixing hole 1121 is a long hole extending up and down. In this way, the position of the second limit block 112 can be fine-tuned by adjusting the up and down position of the fastening bolts in the sixth fixing hole 1121.

[0053] In some embodiments of the present invention, Figure 3 As shown, the suspension support 11 is provided with a first slide rail 113 extending up and down, the first slide rail 113 is provided with a first slider 114, and the vehicle body equivalent part 14 is connected to the first slider 114. Thus, the vehicle body equivalent part 14 can slide on the suspension support, wherein the first slider 114 cooperates with the first slide rail 113 to limit the moving path of the vehicle body equivalent part 14, and the first slider 114 can be stuck on the first slide rail 113, so that the vehicle body equivalent part 14 can move up and down on the suspension support.

[0054] In some embodiments of the present invention, Figure 1 , Figure 5 and Figure 6As shown, the suspension test device 100 also includes: a loading module 30, the loading module 30 includes: a loading assembly 31, the loading assembly 31 includes: a loading bracket 311, a loading plate 312 and a loading link 313, the loading plate 312 is slidably arranged on the loading bracket 311 along the up and down directions, the wheel 13 is supported on the loading plate 312, and the loading link 313 is connected between the loading plate 312 and the actuator 21.

[0055] During the test, the actuator 21 drives the loading link 313 to move, the loading link 313 drives the loading plate 312 to move, and the loading plate 312 pushes the wheel 13, thereby realizing the actuator 21 driving the wheel 13. The loading link 313 is hingedly connected to the loading plate 312. During the product design process, the parameters of the loading bracket 311, the loading plate 312 or the loading link 313 can be adjusted to meet more test needs.

[0056] In some embodiments of the present invention, Figure 5 and Figure 6 As shown, the loading assembly 31 further includes: a disk support 314 and a sliding bearing 315. The disk support 314 includes a supporting platform 3141 and a supporting rod 3142. The supporting platform 3141 extends in the horizontal direction. The loading disk 312 is arranged on the supporting platform 3141. The supporting rod 3142 extends up and down and the upper end is connected to the supporting platform 3141. The sliding bearing 315 is connected to the loading bracket 311, and the supporting rod 3142 is arranged in the sliding bearing 315. In this way, the sliding of the loading disk 312 on the loading bracket 311 can be realized. In the process of product design, the parameters of the supporting platform 3141, the supporting rod 3142 or the sliding bearing 315 can be adjusted to meet more test needs.

[0057] In some embodiments of the present invention, Figure 5 and Figure 6 As shown, a second slide rail 3143 extending along the axis direction of the wheel 13 is provided on the support platform 3141, a second slider 3144 is provided on the second slide rail 3143, and the loading plate 312 is connected to the second slider 3144. Thus, the loading plate 312 can slide along the axis direction of the wheel 13 on the support platform 3141. It can be understood that when the loading plate 312 applies a load to the wheel 13, there may be a component force in the axis direction of the wheel 13. By sliding the loading plate 312 along the axis direction of the wheel 13 on the support platform 3141, the displacement trend of the wheel 13 caused by this component force can be offset, thereby improving the reliability of the connection between the wheel 13 and the suspension system 12, and further improving the reliability of the suspension test device 100.

[0058] In some embodiments of the present invention, Figure 5 and Figure 6As shown, the loading bracket 311 is provided with a first support shaft 3111 and a mounting hole 3112, the axis of the first support shaft 3111 extends in the horizontal direction, and the loading component 31 also includes: an angle adjustment disk 316, the angle adjustment disk 316 is vertically arranged, the sliding bearing 315 is connected to one side of the angle adjustment disk 316 in the horizontal direction, and a first shaft hole 3161 and a first fixing hole 3162 are formed on the angle adjustment disk 316, the first fixing hole 3162 is an arc hole extending around the axis of the first support shaft 3111, the angle adjustment disk 316 is sleeved on the first support shaft 3111 through the first shaft hole 3161, and the first fastener passes through the first fixing hole 3162 and the mounting hole 3112 to fix the angle adjustment disk 316 on the loading bracket 311.

[0059] Thus, the connection between the sliding bearing 315 and the loading bracket 311 can be achieved. During the test, the angle adjustment disk 316 can be rotated within the relative range between the first fixing hole 3162 and the mounting hole 3112, so that the angle adjustment disk 316 rotates around the first support shaft 3111, and then the first fastener passes through the first fixing hole 3162 and the mounting hole 3112 to fix the angle adjustment disk 316 on the loading bracket 311 while maintaining a specific angle. In this way, the load impact direction of the wheel 13 can be adjusted, so that more working conditions can be simulated.

[0060] In some embodiments of the present invention, Figure 1 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, the loading module 30 also includes: a connecting component 32, the connecting component 32 includes a connecting bracket 321, a first arm 322 and a second arm 323, the connecting bracket 321 is provided with a second support shaft 3211, the first arm 322 is formed with a second axial hole, the second arm 323 is formed with a third axial hole, the first arm 322 is sleeved on the second support shaft 3211 through the second axial hole, the second arm 323 is sleeved on the second support shaft 3211 through the third axial hole, the first arm 322 and the second arm 323 are connected and the relative angle is adjustable, the first arm 322 is also provided with a first connecting portion arranged with an interval with the second axial hole, the actuator 21 is connected to the first connecting portion, the second arm 323 is also provided with a second connecting portion arranged with an interval with the third axial hole, and the loading connecting rod 313 is connected to the second connecting portion.

[0061] During the test, the actuator 21 drives the first arm 322 and the second arm 323 to rotate through the first arm 322, and the second arm 323 transmits the force to the loading link 313, thereby driving the loading disk 312. After the relative angle between the first arm 322 and the second arm 323 is adjusted, the transmission angle and transmission distance of the first arm 322 and the second arm 323 relative to the connecting rod will also change. In this way, the force on the loading link 313 can be adjusted, so that more working conditions can be simulated.

[0062] In some embodiments of the present invention, Figure 7-10 As shown, the first arm 322 includes a first connecting arm 3221 and a first adjusting arm 3222, the first adjusting arm 3222 is connected to the first connecting arm 3221, the second arm 323 includes a second connecting arm 3231 and a second adjusting arm 3232, the second adjusting arm 3232 is connected to the second connecting arm 3231, the second axial hole is formed on the first connecting arm 3221, the third axial hole is formed on the second connecting arm 3231, the first adjusting arm 3222 is formed with a second fixing hole 32221, the second adjusting arm 3232 is formed with a third fixing hole 32321, the second fixing hole 32221 and the third fixing hole 32321 are both arc holes extending around the axis of the second support shaft 3211, the second fastener 324 passes through the second fixing hole 32221 and the third fixing hole 32321 to fix the first adjusting arm 3222 and the second adjusting arm 3232 in connection.

[0063] During the test, the first arm 322 and the second arm 323 are rotated relative to each other within the relative range of the second fixing hole 32221 and the third fixing hole 32321. When the relative angle between the first connecting arm 3221 and the second connecting arm 3231 reaches the set angle, the first arm 322 and the second arm 323 can be fixedly connected at the set angle by the second fastener 324 passing through the second fixing hole 32221 and the third fixing hole 32321. In this way, the relative angle of the first arm 322 and the second arm 323 can be adjusted. Preferably, the second fastener 324 is a fastening bolt, and the first adjustment arm 3222 and the second adjustment arm 3232 are arc-shaped arms extending around the axis of the second support shaft 3211. In this way, the material usage of the first arm 322 and the second arm 323 can be reduced, and the interference between the first arm 322 and the second arm 323 during rotation can be reduced.

[0064] In some embodiments of the present invention, Figure 7-10As shown, there are two first arms 322, and the two first arms 322 are arranged at intervals in the axial direction of the second support shaft 3211. An input shaft hole 32211 is formed on the first connecting arm 3221, and the input shaft hole 32211 extends along the extension direction of the first connecting arm 3221. The connecting component 32 also includes: an input shaft 3223, and both ends of the input shaft 3223 are respectively arranged in the input shaft holes 32211 of the two first arms 322, and the position of the input shaft 3223 in the input shaft hole 32211 is adjustable. The input shaft 3223 is connected to the actuator 21, wherein both ends of the input shaft 3223 are provided with threaded sections. When the input shaft 3223 is located in the two input shaft holes 32211, the two ends of the input shaft 3223 are respectively fixed to the two first connecting arms 3221 by nuts.

[0065] There are two second arms 323, and the two second arms 323 are arranged at intervals in the axial direction of the second support shaft 3211. An output shaft hole 32311 is formed on the second connecting arm 3231, and the output shaft hole 32311 extends along the extension direction of the second connecting arm 3231. The connecting component 32 also includes: an output shaft 3233, and the two ends of the output shaft 3233 are respectively arranged in the output shaft holes 32311 of the two second arms 323, and the position of the output shaft 3233 in the output shaft hole 32311 is adjustable. The output shaft hole 32311 is connected to the loading connecting rod 313, wherein the two ends of the output shaft 3233 are provided with threaded sections. When the output shaft 3233 is located in the two output shaft holes 32311, the two ends of the output shaft 3233 are respectively fixed to the two second connecting arms 3231 by nuts.

[0066] During the test, the positions of the two ends of the input shaft 3223 in the two input shaft holes 32211 can be adjusted, so that the force transmission length of the first connecting arm 3221 can be adjusted. The positions of the two ends of the output shaft 3233 in the two output shaft holes 32311 can be adjusted, so that the force transmission length of the second connecting arm 3231 can be adjusted, thereby simulating more working conditions.

[0067] For example, when the load on the wheel 13 needs to be increased, the input shaft 3223 can be moved in a direction away from the second support shaft 3211, or the output shaft 3233 can be moved in a direction toward the second support shaft 3211, or the input shaft 3223 can be moved in a direction away from the second support shaft 3211 and the output shaft 3233 can be moved in a direction toward the second support shaft 3211;

[0068] When the load stroke needs to be increased, the input shaft 3223 can be moved toward the first support shaft 3111, or the output shaft 3233 can be moved away from the second support shaft 3211. The input shaft 3223 can also be moved toward the first support shaft 3111 and the output shaft 3233 can be moved away from the second support shaft 3211.

[0069] In some embodiments of the present invention, Figure 1 and Fig.11 As shown, the actuator 21 is a hydraulic transmission actuator, and the actuator module 20 also includes: an actuator bracket 22 and an actuator positioning plate 23, the actuator positioning plate 23 is arranged on the actuator bracket 22 and the position is adjustable, one end of the actuator 21 is connected to the actuator positioning plate 23, and the other end of the actuator 21 is connected to the input shaft 3223, wherein the actuator 21 is rotatably connected to the actuator positioning plate 23, and the actuator 21 is rotatably connected to the input shaft 3223, thereby allowing the transmission to proceed smoothly. During the test, the position of the actuator positioning plate 23 on the actuator bracket 22 can be adjusted to simulate more working conditions.

[0070] In some embodiments of the present invention, Figure 12-Figure 15 As shown, the suspension system 12 includes: a shock absorber assembly, a connecting rod assembly and a steering knuckle, wherein the shock absorber assembly, the connecting rod assembly and the steering knuckle are respectively connected between the wheel 13 and the vehicle body equivalent part 14.

[0071] The shock absorber assembly includes a shock absorber and a suspension motor. The shock absorber includes a cylinder, a piston rod and a shock-absorbing spring. The upper end of the piston rod is connected to the vehicle body equivalent part 14, and the lower end of the piston rod extends into the cylinder. The lower end of the cylinder is connected to the wheel 13 through a steering knuckle. The shock-absorbing spring is sleeved on the outside of the piston rod and abuts between the cylinder and the vehicle body equivalent part 14. The suspension motor is fixed to the lower side of the vehicle body equivalent part 14. The output shaft of the suspension motor is connected to the steering knuckle through a swing arm connecting rod for actively adjusting the displacement of the steering knuckle relative to the vehicle body equivalent part 14.

[0072] The suspension test device 100 further includes a control module, which includes: a synchronization device, an industrial control computer, a suspension control module 40, a data acquisition unit and a motor controller.

[0073] The data acquisition unit includes: a sensor arranged on the actuator 21 for collecting the force and displacement of the actuator 21, a sensor arranged on the loading plate 312 for collecting the force and displacement of the loading plate 312, a sensor arranged on the wheel 13 for collecting the displacement and acceleration of the wheel 13, a sensor arranged on the shock-absorbing spring for collecting the dynamic stroke of the suspension, a sensor arranged on the body equivalent part 14 for collecting the displacement and acceleration of the body equivalent part 14, and a sensor arranged on the motor for collecting the torque, speed and rotation angle of the motor.

[0074] The suspension control module 40 includes: a host computer 41 , a suspension controller 42 , a power distribution unit 43 and an equivalent power supply 44 .

[0075] When verifying the control algorithm model of the suspension system, the industrial control computer imports the suspension control algorithm into the host computer 41, and the host computer 41 implements active control over the suspension system 12 through the suspension controller 42. The industrial control computer implements drive control over the actuator 21 through the suspension controller 42. The two control chains always maintain synchronization in sending instructions and collecting data through the synchronization device.

[0076] The suspension controller 42 controls the actuator 21 to drive the wheel 13 to move. At the same time, the host computer 41 sends instructions to the suspension controller 42 to connect the equivalent power supply 44 to the suspension motor through the power distribution unit 43, so that the suspension motor drives the suspension system 12 to move. The data acquisition unit and the host computer 41 collect relevant parameters and transmit them to the industrial control computer, which processes and analyzes the above parameters.

[0077] Therefore, the control model algorithm of the suspension system 12 can be verified by the suspension test device 100 .

[0078] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0079] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0080] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0081] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0082] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A suspension test device for verifying a suspension system, characterized in that: include: A quarter suspension equivalent module, the quarter suspension equivalent module comprises a suspension support, a wheel and a body equivalent, the body equivalent is provided with a first mounting portion for connecting to the suspension system, the wheel is provided with a second mounting portion for connecting to the suspension system, the suspension test device has a moving state and a locked state, In the moving state, the vehicle body equivalent is slidably arranged on the suspension support in the up-down direction, and in the locked state, the vehicle body equivalent is fixed on the suspension support; An actuator module includes an actuator, and the actuator is connected to the wheel for pushing the wheel.

2. The suspension test device according to claim 1, characterized in that: The quarter suspension equivalent module further includes: a first limit block and a second limit block, wherein the first limit block and the second limit block are arranged on the suspension support and are respectively located at the upper and lower sides of the vehicle body equivalent component, and the positions of the first limit block and the second limit block on the suspension support are adjustable; In the moving state, the vehicle body equivalent part is slidably disposed between the first limit block and the second limit block; in the locked state, the upper and lower sides of the vehicle body equivalent part are respectively in contact with the first limit block and the second limit block.

3. The suspension test device according to claim 2, characterized in that: The suspension support is provided with a first slide rail extending up and down, the first slide rail is provided with a first slider, and the vehicle body equivalent part is connected to the first slider.

4. The suspension test device according to any one of claims 1 to 3, characterized in that: Also includes: The loading module comprises: a loading assembly, the loading assembly comprises: a loading bracket, a loading plate and a loading connecting rod, the loading plate is slidably arranged on the loading bracket along the up and down directions, the wheel is supported on the loading plate, and the loading connecting rod is connected between the loading plate and the actuator.

5. The suspension test device according to claim 4, characterized in that: The loading assembly also includes: a disk support and a sliding bearing, the disk support includes a support platform and a support rod, the support platform extends in a horizontal direction, the loading disk is arranged on the support platform, the support rod extends up and down and the upper end is connected to the support platform, the sliding bearing is connected to the loading bracket, and the support rod is arranged in the sliding bearing.

6. The suspension test device according to claim 5, characterized in that: The support platform is provided with a second slide rail extending along the wheel axis direction, the second slide rail is provided with a second slider, and the loading plate is connected to the second slider.

7. The suspension test device according to claim 5, characterized in that: The loading bracket is provided with a first supporting shaft and a mounting hole, and the axis of the first supporting shaft extends in a horizontal direction; The loading assembly also includes: an angle adjustment disk, which is vertically arranged, the sliding bearing is connected to one side of the angle adjustment disk in the horizontal direction, a first axial hole and a first fixing hole are formed on the angle adjustment disk, the first fixing hole is an arc-shaped hole extending around the axis of the first support shaft, the angle adjustment disk is sleeved on the first support shaft through the first axial hole, and a first fastener passes through the first fixing hole and the mounting hole to fix the angle adjustment disk on the loading bracket.

8. The suspension test device according to any one of claims 5 to 7, characterized in that: The loading module further includes: a connecting component, the connecting component includes a connecting bracket, a first arm and a second arm, the connecting bracket is provided with a second supporting shaft, the first arm is formed with a second shaft hole, the second arm is formed with a third shaft hole, the first arm is sleeved on the second supporting shaft through the second shaft hole, the second arm is sleeved on the second supporting shaft through the third shaft hole, the first arm and the second arm are connected and the relative angle is adjustable, The first arm is also provided with a first connection portion spaced apart from the second axial hole, and the actuator is connected to the first connection portion. The second arm is also provided with a second connection portion spaced apart from the third axial hole, and the loading connecting rod is connected to the second connection portion.

9. The suspension test device according to claim 8, characterized in that: The first arm includes a first connecting arm and a first adjusting arm, the first adjusting arm is connected to the first connecting arm, the second arm includes a second connecting arm and a second adjusting arm, the second adjusting arm is connected to the second connecting arm, The second axial hole is formed on the first connecting arm, the third axial hole is formed on the second connecting arm, a second fixing hole is formed on the first adjusting arm, and a third fixing hole is formed on the second adjusting arm. The second fixing hole and the third fixing hole are both arc holes extending around the axis of the second support shaft, and a second fastener passes through the second fixing hole and the third fixing hole to fix the first adjusting arm and the second adjusting arm together.

10. The suspension test device according to claim 9, characterized in that: There are two first arms, and the two first arms are arranged at intervals in the axial direction of the second supporting shaft. An input shaft hole is formed on the first connecting arm, and the input shaft hole extends along the extension direction of the first connecting arm. The connecting assembly further includes: an input shaft, and the two ends of the input shaft are respectively arranged in the input shaft holes of the two first arms, and the position of the input shaft in the input shaft holes is adjustable, and the input shaft is connected to the actuator; There are two second arms, and the two second arms are arranged at intervals in the axial direction of the second support shaft. An output shaft hole is formed on the second connecting arm, and the output shaft hole extends along the extension direction of the second connecting arm. The connecting component also includes: an output shaft, and the two ends of the output shaft are respectively arranged in the output shaft holes of the two second arms, and the position of the output shaft in the output shaft hole is adjustable, and the output shaft hole is connected to the loading connecting rod.

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