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CN-122016351-A - Test cabin for silencing performance of electric automobile tire

CN122016351ACN 122016351 ACN122016351 ACN 122016351ACN-122016351-A

Abstract

The invention relates to the technical field of tire testing, in particular to a test cabin for the mute performance of an electric automobile tire, which comprises a sound insulation cabin and a workstation, and further comprises a test road paved on a sound insulation foundation, wherein a plurality of ground noise collectors are arranged on the road surface of the test road, a plurality of environment noise collectors are arranged above the outer side of the test road, a limit rail is arranged on the outer side of the test road and used for limiting and restraining a trolley mechanism, the trolley mechanism is arranged on the test road and used for loading a mute tire, the mute tire is in rolling contact with the test road, the trolley mechanism is in sliding constraint connection with the limit rail, the plurality of ground noise collectors are used for detecting the vibration and noise of the test road when the trolley mechanism passes through, the tire rolls on the test road which is closer to the real road condition, and the real tire noise and the wind noise are generated, and the accuracy and the comprehensiveness of a test result are improved.

Inventors

  • QIN LONG
  • LIN WENLONG
  • QIN JINGBO
  • QIN BAO
  • TONG WEI
  • ZHAO CUI
  • ZHAO HUAN
  • ZHANG KANGKANG

Assignees

  • 青岛森麒麟轮胎股份有限公司

Dates

Publication Date
20260512
Application Date
20260212

Claims (10)

  1. 1. The test cabin for the mute performance of the electric automobile tire comprises a sound insulation cabin (1), and a workstation (2) is arranged in the sound insulation cabin (1), and is characterized by further comprising: The sound insulation cabin comprises a sound insulation foundation (3) arranged in the middle of the ground of a sound insulation cabin (1), a test road (4) is paved on the sound insulation foundation (3), at least one straight road is arranged on the test road (4), a plurality of ground noise collectors (5) are arranged on the road surface of the test road (4), and a plurality of environment noise collectors (6) are arranged above the outer side of the test road (4); The limit rail (7) is arranged at the outer side of the test path (4), the limit rail (7) and the route of the test path (4) are arranged along with each other, and the limit rail (7) is used for limiting and restraining the trolley mechanism (8); the trolley mechanism (8) is arranged on the test path (4), the trolley mechanism (8) is used for loading a mute tire, the mute tire is in rolling contact with the test path (4), and the trolley mechanism (8) is in sliding constraint connection with the limit track (7); The plurality of ground noise collectors (5) are used for detecting vibration and noise of the test path (4) when the trolley mechanism (8) passes by, and the plurality of environment noise collectors (6) are used for detecting tire noise in the environment when the trolley mechanism (8) passes by.
  2. 2. An electric vehicle tyre silence performance test cabin as claimed in claim 1, characterized in that the limit rail (7) comprises an outer rail (9) arranged along the outer edge of the test path (4), an inner rail (10) arranged along the inner edge of the test path (4), the outer rail (9) and the inner rail (10) being mounted on the sound insulation foundation (3) by means of a plurality of struts (11), both sides of the trolley mechanism (8) being in sliding connection with the outer rail (9) and the inner rail (10), respectively.
  3. 3. An electric vehicle tyre silence performance test-cabin as claimed in claim 2, characterized in that it further comprises a plurality of shock absorbers (12), the plurality of shock absorbers (12) being mounted on a plurality of struts (11) respectively.
  4. 4. An electric vehicle tyre silence performance test-cabin as claimed in claim 1, characterized in that the trolley mechanism (8) comprises: A frame (13), a tire assembly is arranged on the frame (13), the tire assembly is used for loading and driving tires, a plurality of dynamic noise collectors (14) are arranged on the frame (13), and the dynamic noise collectors (14) are used for detecting noise signals on the tires and the frame (13); The power supply (15) is arranged on the frame (13), the power supply (15) is used for supplying power to the tire assembly and the control box (16), the control box (16) is arranged on the frame (13), and a wireless communication module and a control unit of the tire assembly are arranged in the control box (16); the track assemblies are respectively arranged at two sides of the frame (13) and are respectively connected with the outer track (9) and the inner track (10) in a sliding way; The air guide sleeve (28), the air guide sleeve (28) is arranged at the front part of the frame (13).
  5. 5. The test cabin for the silencing performance of the electric automobile tire according to claim 4, wherein the track assembly comprises a cross beam (17) arranged on the side part of the frame (13), a stand column (18) arranged on the outer end of the cross beam (17) in a lifting mode, a lower track wheel (19) is rotatably arranged on the lower portion of the stand column (18), an upper track wheel (20) is rotatably arranged on the upper portion of the stand column (18), the lower track wheel (19) is in rolling contact with the lower surface of the outer track (9) or the inner track (10), and the upper track wheel (20) is in rolling contact with the upper surface of the outer track (9) or the inner track (10).
  6. 6. The test cabin for the silencing performance of an electric automobile tire according to claim 5, further comprising two screws (21) rotatably screwed on the two upright posts (18), wherein the lower ends of the two screws (21) are in transmission connection with the two cross beams (17), respectively.
  7. 7. The test cabin for the silencing performance of an electric automobile tire according to claim 6, further comprising two buffer springs (22), wherein the lower ends of the two buffer springs (22) are respectively connected with the two cross beams (17), and the upper ends of the two buffer springs (22) are respectively connected with the lower ends of the two screw rods (21) in a rotating mode.
  8. 8. The test cabin for the silence performance of the electric automobile tire according to claim 5, further comprising two weight bars (23) respectively mounted on the two cross beams (17), wherein a plurality of weight blocks (24) are detachably mounted on the two weight bars (23).
  9. 9. An electric vehicle tyre silence performance test cabin as claimed in claim 4 characterised in that the tyre assembly comprises a motor (25) mounted on the frame (13), a control box (16) mounted on the output shaft end face of the motor (25), the control box (16) being mounted on the hub (27) by a plurality of bolts, the hub (27) being fitted with a tyre.
  10. 10. The test cabin for the silencing performance of the tire of the electric automobile according to claim 4, further comprising a first rudder plate (29) rotatably mounted on the frame (13), wherein the first rudder plate (29) is located on one side close to the inner rail (10), a first steering engine (30) is mounted on the frame (13), an output shaft of the frame (13) is in transmission connection with the first rudder plate (29), a second rudder plate (31) rotatably mounted on the frame (13), the second rudder plate (31) is located on one side close to the outer rail (9), a second steering engine (32) is mounted on the frame (13), an output shaft of the second steering engine (32) is in transmission connection with the second rudder plate (31), and a second steering engine (30) and a second steering unit of the second rudder plate (31) are arranged inside the control box (16).

Description

Test cabin for silencing performance of electric automobile tire Technical Field The invention relates to the technical field of tire testing, in particular to a test cabin for the mute performance of an electric automobile tire. Background The silence performance of the electric automobile tire is an important index of the comfort and silence of the electric automobile, and a test cabin is generally adopted to test the silence performance of the tire in the prior art. The Chinese patent application with the prior art publication number of CN120628639A proposes a tire noise testing system, which comprises a base, wherein the top end of the base is provided with a driving box, the top end of the driving box is fixedly connected with a rotary table through a rotary shaft, the rotary table is provided with a tire fixing mechanism, one end of the base is also provided with a simulated pavement mounting mechanism, tires with different specifications and sizes are clamped and fixed, then a simulated pavement plane plate is moved to be in contact with the tires through the simulated pavement mounting mechanism, then the rotation of the tires is realized through the driving box, finally the rotation of the tires is realized through the rotation of the tires, and noise is collected and tested while the tires rotate. The tire-road noise indoor test equipment and the method for the controllable environment are provided in the Chinese patent application with the prior art publication number of CN118641231A, and the test equipment comprises a sound insulation cover, a steel frame, a spraying system, an annular loading system, wheels, a pressure control system, a temperature control system and a data acquisition system. The sound-proof cover surrounds the whole steel frame, the spraying system comprises a water inlet pipe, a water outlet pipe and a water valve, the annular loading system comprises an annular loading platform and the like, wheels are right above the annular loading platform, and the pressure control system is connected with wheel shafts of the wheels. The invention can simulate different environmental factors such as humidity, temperature, running speed and the like of the road surface, and simulate and test the contact noise between the tire and the road surface under different environmental working conditions. The prior art adopts the contact mode of the tire and the drum-shaped simulated pavement to test, in the test process, the contact part of the tread of the tire and the drum-shaped simulated pavement is an inward concave arc deformation part, which is different from the normal deformation of the tire, so that the generated noise is different, the test result of the mute performance is inaccurate, the whole tire position is fixed, wind noise cannot be generated, and the test result of the mute performance of the tire is not comprehensive enough. Disclosure of Invention In order to solve the technical problems, the invention provides the test cabin for the mute performance of the electric automobile tire, which is characterized in that the tire rolls on a test road which is closer to the real road condition, real tire noise and wind noise are generated, and the accuracy and the comprehensiveness of the test result are improved. The invention relates to an electric automobile tire silencing performance test cabin, which comprises a sound insulation cabin, wherein a workstation is arranged in the sound insulation cabin; the sound insulation cabin is characterized by further comprising a sound insulation foundation arranged in the middle of the ground of the sound insulation cabin, a test road is laid on the sound insulation foundation in a spreading mode, at least one straight road is arranged on the test road, a plurality of ground noise collectors are arranged on the road surface of the test road, and a plurality of environment noise collectors are arranged above the outer side of the test road; the device comprises a limit track arranged outside a test road, wherein the limit track is arranged along with the route of the test road, the limit track is used for limiting and restraining a trolley mechanism, the trolley mechanism is arranged on the test road and is used for loading silent tires, the silent tires are in rolling contact with the test road, the trolley mechanism is connected with the limit track in a sliding and restraining manner, a plurality of ground noise collectors are used for detecting vibration and noise of the test road when the trolley mechanism passes through, a plurality of environment noise collectors are used for detecting tire noise in the environment when the trolley mechanism passes through, a work station is electrically connected with the plurality of ground noise collectors and the plurality of environment noise collectors in a communication manner, the work station is connected with the trolley mechanism in a wireless communication manner, so that the work station col