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CN-122016353-A - Integrated test bench for quarter active suspension of new energy automobile

CN122016353ACN 122016353 ACN122016353 ACN 122016353ACN-122016353-A

Abstract

The invention discloses a new energy automobile quarter active suspension comprehensive test bench, which relates to the technical field of new energy automobiles and comprises an iron floor, wherein one end of the iron floor is provided with an actuator assembly, one side of the iron floor, which is close to the actuator assembly, is provided with a sprung mass block guiding device, the top end of the sprung mass block guiding device is provided with a mass block lifting device, the top end of the actuator assembly is provided with a tested piece main body, one end of the sprung mass block guiding device, which is close to the tested piece main body, is provided with a first tested piece fixing bracket connected through a bolt, the tested piece main body is placed at the top end of a wheel fixing device and locked through a binding belt, the tested piece main body can be accurately positioned in the center of the actuator assembly, so that the running deviation of wheels is prevented, and then the dynamic behavior of single wheels in real running can be truly simulated through the matching of the actuator assembly and the sprung mass block guiding device.

Inventors

  • ZHANG JIWEI
  • ZHONG XINKE
  • ZHAO SHAOLIANG

Assignees

  • 江苏诺微达自动化科技有限公司

Dates

Publication Date
20260512
Application Date
20260226

Claims (9)

  1. 1. The utility model provides a new energy automobile quarter initiative suspension integrated test rack, includes iron floor (1), its characterized in that: An actuator assembly (2) is arranged at one end of the iron floor (1), a sprung mass block guiding device (3) is arranged at one side, close to the actuator assembly (2), of the iron floor (1), a mass block lifting device (4) is arranged at the top end of the sprung mass block guiding device (3), and a measured piece main body (5) is arranged at the top end of the actuator assembly (2); A first measured piece fixing bracket (6) connected through a bolt is arranged at one end, close to the measured piece main body (5), of the sprung mass block guiding device (3), a second measured piece fixing bracket (7) is arranged at one end, far away from the first measured piece fixing bracket (6), of the sprung mass block guiding device (3), and the second measured piece fixing bracket (7) is connected with the sprung mass block guiding device (3) through the bolt; The sprung mass block guiding device is characterized in that a sprung mass block fixing seat (8) is arranged at one end, close to a first measured piece fixing support (6) and a second measured piece fixing support (7), of the sprung mass block guiding device (3), a heavy guide rail (10) is arranged at one end, close to the sprung mass block fixing seat (8), of the sprung mass block guiding device (3), the sprung mass block fixing seat (8) is slidably connected with the heavy guide rail (10), and a detachable mass block body (12) is arranged at one end, far away from the sprung mass block guiding device (3), of the sprung mass block fixing seat (8).
  2. 2. The integrated test bench for the quarter active suspension of the new energy automobile according to claim 1, wherein the actuator assembly (2) comprises a supporting seat (201) which is arranged at the top end of the iron floor (1) and is connected with the iron floor through bolts, and an organ cover (202) is arranged at the top end of the supporting seat (201).
  3. 3. The integrated test bench for the quarter active suspension of the new energy automobile according to claim 2, wherein one end of the organ cover (202) far away from the supporting seat (201) is provided with a wheel fixing device (203), the shape of the wheel fixing device (203) is U-shaped, one end of the wheel fixing device (203) is connected with a binding belt (204) for stabilizing and limiting a tested piece main body (5), and a placing seat (205) is arranged between the supporting seat (201) and the wheel fixing device (203).
  4. 4. The integrated test bench for the quarter active suspension of the new energy automobile according to claim 1, wherein the mass lifting device (4) comprises a servo motor (401) arranged at the top end of the sprung mass guiding device (3), and the output end of the servo motor (401) is connected with a driving screw rod (402).
  5. 5. The integrated test bench for the quarter active suspension of the new energy automobile according to claim 4, wherein the driving screw rod (402) is connected with the output end of the servo motor (401) through a coupler (403), a T-shaped screw rod nut (405) is matched on the driving screw rod (402) in a threaded mode, a mass block fixing seat lug plate (404) is connected above the T-shaped screw rod nut (405) in a floating lap joint mode, and the mass block fixing seat lug plate (404) is fixedly connected with the sprung mass block fixing seat (8).
  6. 6. The integrated test bench for the quarter active suspension of the new energy automobile according to claim 5, wherein the T-shaped screw nut (405) is in floating lap joint with the lug plate (404) of the mass block fixing seat, the lug plate (404) of the mass block fixing seat is pressed on the top surface of the T-shaped screw nut (405) through self gravity, and when the T-shaped screw nut (405) descends along the driving screw (402) to be separated from the lug plate (404) of the mass block fixing seat, mechanical decoupling is realized.
  7. 7. The integrated test bench for the quarter active suspension of the new energy automobile according to claim 1, wherein the sprung mass fixing seat (8) and the sprung mass guiding device (3) are connected through bolts, and locking bolts (9) are connected between the first tested piece fixing bracket (6) and the second tested piece fixing bracket (7) and the sprung mass fixing seat (8) in a threaded mode respectively.
  8. 8. The integrated test bench for the quarter active suspension of the new energy automobile as claimed in claim 7, wherein the heavy guide rail (10) is connected with the sprung mass guiding device (3) through bolts, and the heavy guide rail (10) is symmetrically distributed on the surface of the sprung mass guiding device (3).
  9. 9. The integrated test bench for the quarter active suspension of the new energy automobile according to claim 8, wherein the two ends of the sprung mass guiding device (3) are provided with buffer pads (11), and the mass bodies (12) are uniformly distributed on the sprung mass fixing seat (8).

Description

Integrated test bench for quarter active suspension of new energy automobile Technical Field The invention relates to the technical field of new energy automobiles, in particular to a comprehensive test bench for a quarter active suspension of a new energy automobile. Background The comprehensive test bench for the active suspension of the new energy automobile aims at a full-performance verification platform of an active suspension system of the new energy automobile, has the core effects of simulating the complex working condition of actual running of the whole automobile in a laboratory environment, comprehensively testing and optimizing the dynamic response, control strategy, reliability, energy consumption characteristics and the like of the active suspension, and providing scientific basis for product research and development, performance calibration and mass production verification. However, the prior art has the following problems: 1) Load simulation distortion the influence of the sprung mass cannot be simulated by the traditional 'fixed cross beam type framework structure', and the dynamic inertia characteristic of the sprung mass of a real vehicle cannot be reflected, so that the evaluation distortion of a suspension control algorithm is caused. 2) The test capability of the actuator is insufficient, and a comprehensive test means for the real working environment (such as the rigidity of a mounting point and the interference of lateral force) and the ultimate performance (maximum speed, output and durability) of the active actuator is lacked. 3) The integration level and the reconfigurability are poor, the mechanical structure is fixed, the suspensions of different vehicle types and different types are difficult to adapt quickly, the test sample replacement time is long, and the research and development efficiency is influenced. 4) When the frequency of the simulated road surface excitation is too high or the amplitude is too large, the actuator can cause the tested piece main body to be separated from the upper surface of the tested piece main body, so that the data mutation of the force sensor is caused, and the testing accuracy is affected. Disclosure of Invention The invention aims to make up the defects of the prior art and provides a comprehensive test bench for a quarter active suspension of a new energy automobile. In order to achieve the above purpose, the present invention provides the following technical solutions: The integrated test bench for the quarter active suspension of the new energy automobile comprises an iron floor, wherein one end of the iron floor is provided with an actuator assembly, one side of the iron floor, which is close to the actuator assembly, is provided with a sprung mass block guiding device, the top end of the sprung mass block guiding device is provided with a mass block lifting device, and the top end of the actuator assembly is provided with a tested piece main body; The sprung mass block guiding device is provided with a first measured piece fixing bracket connected through a bolt at one end close to the measured piece main body, a second measured piece fixing bracket is arranged at one end, far away from the first measured piece fixing bracket, of the sprung mass block guiding device, and the second measured piece fixing bracket is connected with the sprung mass block guiding device through a bolt; the sprung mass block guiding device is characterized in that a sprung mass block fixing seat is arranged at one end, close to the first measured piece fixing support and the second measured piece fixing support, of the sprung mass block guiding device, a heavy guide rail is arranged at one end, close to the sprung mass block fixing seat, of the sprung mass block guiding device, the sprung mass block fixing seat is in sliding connection with the heavy guide rail, and a detachable mass block body is arranged at one end, far away from the sprung mass block guiding device, of the sprung mass block fixing seat. Preferably, the actuator assembly comprises a supporting seat which is arranged at the top end of the iron floor and connected through bolts, and an organ cover is arranged at the top end of the supporting seat. Preferably, one end of the organ cover far away from the supporting seat is provided with a wheel fixing device, the shape of the wheel fixing device is U-shaped, one end of the wheel fixing device is connected with a binding belt for stabilizing and limiting a tested piece main body, and a placing seat is arranged between the supporting seat and the wheel fixing device. Preferably, the mass lifting device comprises a servo motor arranged at the top end of the sprung mass guiding device, and the output end of the servo motor is connected with a driving screw rod. Preferably, the driving screw rod is connected with the output end of the servo motor through a coupler, a T-shaped screw rod nut is in threaded fit with the driving screw rod, a mass block