CN111638070A - System and method for testing vibration reduction performance of hub motor - Google Patents
System and method for testing vibration reduction performance of hub motor Download PDFInfo
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- CN111638070A CN111638070A CN202010394263.0A CN202010394263A CN111638070A CN 111638070 A CN111638070 A CN 111638070A CN 202010394263 A CN202010394263 A CN 202010394263A CN 111638070 A CN111638070 A CN 111638070A
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Abstract
The invention discloses a system for testing the vibration damping performance of a hub motor, which comprises a control center, a road surface simulation assembly and a hub motor vehicle simulation assembly controlled by the control center, and a sensor assembly for detecting the vibration damping performance of the hub motor vehicle simulation assembly. And the hub motor vehicle simulation component is internally provided with a hub motor dynamic vibration absorber component and a vehicle body suspension vibration absorber component. The hub motor shaft sensor and the hub motor rotor sensor are subjected to data processing by the control center to realize the performance test and evaluation of the hub motor dynamic vibration absorber; and the vehicle body sensor and the axle sensor realize the suspension performance test and evaluation through data processing of the control center.
Description
Technical Field
The invention relates to the technical field of vehicle vibration noise control, in particular to a system and a method for testing vibration reduction performance of a hub motor.
Background
The wheel hub motor driven vehicle has the advantages that the motor can be directly installed in the wheel hub, and the driving torque of each wheel can be flexibly controlled and distributed, so that compared with a traditional vehicle, the vehicle dynamics control can be better used on the vehicle with the novel structure, the power performance and the control performance of the whole vehicle can be improved, and the wheel hub motor driven vehicle becomes an important development direction of the electric vehicle.
However, when the vehicle is driven by the in-wheel motor, the unsprung mass increases, which leads to deterioration in the ride comfort and handling stability.
In order to reduce the negative influence of the hub motor on the smoothness and the operation stability of the vehicle, a dynamic vibration absorber vibration reduction system needs to be designed to be matched with the wheel and the hub motor assembly for use, and the direct relation between the rigidity and the damping parameters of the dynamic vibration absorber and the test of the vibration reduction system is the research and development and the performance evaluation of the dynamic vibration absorber vibration reduction system.
In the technology of a vibration reduction performance test system of a vehicle hub motor, the invention patent with the publication number of CN109738210A discloses a performance test device and a test method of a dynamic vibration absorber of a vehicle driving shaft.
However, the device and the method neglect the influence of the rigidity damping of the wheel tire on the dynamic vibration absorber, and do not consider the influence of the mass and the load of the vehicle body and the rigidity damping of the suspension of the vehicle body on the hub motor, so that the deviation of the vibration damping performance test result from the actual condition is larger.
Disclosure of Invention
The invention aims to provide a system for testing the vibration damping performance of a hub motor, aiming at the technical defect that the deviation of a vibration damping performance test result from an actual condition is larger because the influence of rigidity damping of a wheel tire, the mass and the load of a vehicle body and rigidity damping of a vehicle body suspension is neglected in the conventional system and method for testing the vibration damping performance of the hub motor of a vehicle.
The invention further aims to provide a testing method of the system for testing the vibration damping performance of the hub motor.
The technical scheme adopted for realizing the purpose of the invention is as follows:
1. a system for testing the vibration damping performance of an in-wheel motor is characterized by comprising a road surface simulation component, an in-wheel motor vehicle simulation component, a sensor component and a control center;
the road surface simulation assembly comprises a simulated road surface driving motor, a rotating shaft arranged on an output shaft of the simulated road surface driving motor through an elastic coupling, and a simulated road surface rotating wheel arranged on the rotating shaft and rotating along with the rotating shaft, wherein the simulated road surface rotating wheel is rotatably connected to a support through the rotating shaft, and the circumferential surface of the simulated road surface rotating wheel forms an action surface of a simulated road surface;
the wheel hub motor vehicle simulation assembly comprises a wheel consisting of a tire and a wheel hub, a wheel hub motor rotor and a wheel hub motor stator for driving the wheel to rotate, a wheel hub motor shaft, a pressure block for simulating vehicle body load and an adjustable mass block placed on the pressure block, wherein the wheel, the wheel hub motor rotor, the wheel hub motor stator and the wheel hub motor shaft are horizontally and coaxially arranged, one end of the wheel hub motor shaft is provided with the wheel, the other end of the wheel hub motor shaft is fixed on a wheel hub motor shaft bracket through a bearing, the pressure block is arranged above the wheel hub motor shaft through a vehicle body suspension vibration absorber assembly, and a wheel hub motor power vibration absorber assembly is arranged between the interior of the wheel hub motor rotor and the wheel hub motor;
the sensor assembly comprises a hub motor shaft sensor and a hub motor rotor sensor which are used for evaluating the vibration reduction performance of the hub motor dynamic vibration absorber assembly, and a vehicle body sensor and an axle sensor which are used for evaluating the vibration reduction performance of the vehicle body suspension vibration absorber assembly; the hub motor shaft sensor is arranged on a hub motor shaft in the hub motor rotor, the hub motor rotor sensor is arranged on the hub motor rotor, the vehicle body sensor is arranged on the pressure block, and the vehicle shaft sensor is arranged on the hub motor shaft below the pressure block;
the simulated road surface driving motor and the hub motor stator are respectively electrically connected with the control center, and the sensor assembly is in communication connection with the control center.
In the technical scheme, the in-wheel motor vehicle simulation assembly is arranged on a horizontal plane, the road surface simulation assembly is arranged in a pit below the horizontal plane, and the simulated road surface rotating wheel is positioned under the tire and is in contact with the tire; the simulation road surface driving motor and the hub motor stator are respectively electrically connected with a data interface box in the control center.
In the above technical solution, the road surface simulation assembly further includes a driving motor support for supporting the simulated road surface driving motor.
In the above technical solution, the simulated road surface runner is one of a plurality of replaceable runners, and the roughness and the flatness of the action surface of each runner are different to simulate different road surfaces.
In the technical scheme, the vehicle body suspension vibration absorber assembly comprises a suspension spring, a suspension fixed damper and a suspension adjustable damper; the dynamic vibration absorber component of the hub motor comprises a dynamic vibration absorber spring, a fixed damper of the dynamic vibration absorber and an adjustable damper of the dynamic vibration absorber.
In the technical scheme, the suspension spring is mounted on the hub motor shaft through a suspension spring lower support, and the upper end of the suspension spring is mounted on the pressure block through a suspension fixed damper upper support;
the suspension fixed damper is arranged on the shaft of the hub motor through a suspension fixed damper lower support, and the upper end of the suspension fixed damper is arranged on the pressure block through a suspension fixed damper upper support;
the suspension adjustable damper is arranged on the shaft of the hub motor through a suspension adjustable damper lower support, and the upper end of the suspension adjustable damper is arranged on the pressure block through a suspension adjustable damper upper support;
the lower end of the dynamic vibration absorber spring is arranged on the hub motor shaft through a dynamic vibration absorber spring lower support, and the upper end of the dynamic vibration absorber spring upper support is arranged on the hub motor rotor;
the lower end of the dynamic vibration absorber fixed damper is arranged on the shaft of the hub motor through a dynamic vibration absorber fixed damper lower support, and the upper end of the dynamic vibration absorber fixed damper upper support is arranged on the rotor of the hub motor;
the lower end of the adjustable damper of the dynamic vibration absorber is arranged on the shaft of the hub motor through the lower support of the adjustable damper of the dynamic vibration absorber, and the upper end of the adjustable damper of the dynamic vibration absorber is arranged on the rotor of the hub motor through the upper support of the adjustable damper of the dynamic vibration absorber.
In the technical scheme, the hub motor shaft sensor is an acceleration sensor, a speed sensor or a displacement sensor;
the hub motor rotor sensor is an acceleration sensor, a speed sensor or a displacement sensor;
the vehicle body sensor is an acceleration sensor, a speed sensor or a displacement sensor;
the axle sensor is an acceleration sensor, a speed sensor or a displacement sensor.
In the technical scheme, the hub motor shaft sensor and the hub motor rotor sensor are respectively connected with the control center through wireless communication.
In the technical scheme, the vehicle body sensor, the axle sensor and the control center are connected through wireless communication or data lines.
In another aspect of the present invention, the testing method of the wheel hub motor vibration damping performance testing system includes the following steps:
step 1: installing and debugging the vibration reduction performance test system of the hub motor;
step 2: the control center controls the simulated road surface driving motor to be started to drive the rotating shaft to rotate, so that the simulated road surface rotating wheel is driven to rotate;
and step 3: the control center controls the hub motor stator to be electrified, and the electrified hub motor stator electromagnetically drives the hub motor rotor so as to drive the wheel to rotate;
and 4, step 4: the hub motor shaft sensor and the hub motor rotor sensor transmit the collected vibration absorber test data to the control center through wireless communication; the vehicle body sensor and the axle sensor transmit the collected suspension test data to a control center through wireless communication or a data line;
and 5: the control center analyzes and calculates the received vibration absorber test data to obtain the transfer function and the amplitude-frequency characteristic of the dynamic vibration absorber of the hub motor;
the control center analyzes and calculates the received suspension test data to obtain a transfer function and amplitude-frequency characteristics of the suspension;
step 6: replacing one or more of the simulated road surface rotating wheel, the vehicle body adjustable mass block, the dynamic vibration absorber spring, the dynamic vibration absorber fixed damper, the dynamic vibration absorber adjustable damper, the suspension spring, the suspension fixed damper and the suspension adjustable damper, and repeating the steps 1-5 to obtain a test and evaluation result.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention provides a system for testing vibration damping performance of a hub motor, which comprises a road surface simulation assembly and a hub motor vehicle simulation assembly, wherein the hub motor vehicle simulation assembly comprises wheels and a pressure block for simulating vehicle body load, so that the real driving state of a hub motor vehicle is restored as much as possible, the influence of road conditions, wheel rigidity damping, vehicle body mass and load and vehicle body suspension rigidity damping on the vibration damping performance test result in the driving process is reduced, and the accuracy of the vibration damping performance test result is improved.
2. The test method of the wheel hub motor vibration damping performance test system provided by the invention has the advantages that the control center controls and simulates the opening and closing of the road surface driving motor and the electrifying condition of the wheel hub motor stator, thereby indirectly controlling and simulating the rotation of the road surface rotating wheel and the wheel and automatically simulating the real driving process of a vehicle. The sensor assembly is in communication connection with the control center, and receives and analyzes data detected by the sensor assembly in real time. The test method is characterized in that the control center automatically collects and analyzes real-time data detected by the sensor assembly as far as possible in the real driving state of the hub motor vehicle, and the test result accuracy is high.
Drawings
Fig. 1 is a schematic structural diagram of a damping performance testing system of a hub motor.
In the figure: 1-simulated road left support, 2-rotating shaft, 3-simulated road rotating wheel, 4-elastic coupling, 5-wheel, 6-in-wheel motor rotor, 7-in-wheel motor stator, 8-in-wheel motor shaft sensor, 9-dynamic vibration absorber spring lower support, 10-dynamic vibration absorber fixed damper lower support, 11-dynamic vibration absorber adjustable damper lower support, 12-dynamic vibration absorber spring, 13-dynamic vibration absorber spring upper support, 14-dynamic vibration absorber fixed damper upper support, 15-dynamic vibration absorber adjustable damper upper support, 16-in-wheel motor rotor sensor, 17-dynamic vibration absorber fixed damper, 18-dynamic vibration absorber adjustable damper, 19-suspension fixed damper upper support, 20-suspension fixed damper upper support, 21-upper support of adjustable damper of suspension, 22-adjustable mass block, 23-suspension spring, 24-vehicle body sensor, 25-fixed damper of suspension, 26-pressure block, 27-adjustable damper of suspension, 28-lower support of suspension spring, 29-lower support of fixed damper of suspension, 30-lower support of adjustable damper of suspension, 31-wheel hub motor shaft, 32-data interface box, 33-control center, 34-wheel hub motor shaft support, 35-axle sensor, 36-driving motor of simulated road surface, 37-right support of simulated road surface, and 38-driving motor support.
Detailed Description
The present invention will be described in further detail with reference to specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A system for testing the vibration damping performance of an in-wheel motor comprises a control center 33, a road surface simulation assembly and an in-wheel motor vehicle simulation assembly controlled by the control center 33, and a sensor assembly for detecting the vibration damping performance of the in-wheel motor vehicle simulation assembly, wherein the sensor assembly is in communication connection with the control center 33;
the road surface simulation assembly is positioned below the in-wheel motor vehicle simulation assembly and comprises a simulation road surface driving motor 36 electrically connected with a data interface box 32 in the control center 33, a rotating shaft 2 arranged on an output shaft of the simulation road surface driving motor 36 through an elastic coupling 4, a simulation road surface rotating wheel 3 arranged on the rotating shaft 2 and rotating along with the rotating shaft, and a support which is rotatably connected with the rotating shaft 2 and used for providing supporting force for the simulation road surface rotating wheel, wherein the support comprises a simulation road surface left support 1 and a simulation road surface right support 37 which are respectively positioned at the left side and the right side of the simulation road surface rotating wheel, and the circumferential surface of the simulation road surface rotating wheel 3 forms an acting surface of a simulation road surface;
the wheel hub motor vehicle simulation assembly comprises a wheel 5 consisting of a tire and a wheel hub, a wheel hub motor rotor 6 and a wheel hub motor stator 7 which are in communication connection with the control center 33 and are used for driving the wheel 5 to rotate, a wheel hub motor shaft 31, a pressure block 26 used for simulating vehicle body load and an adjustable mass block 22 placed on the pressure block 26, wherein the wheel 5, the wheel hub motor rotor 6, the wheel hub motor stator 7 and the wheel hub motor shaft 31 are horizontally and coaxially arranged, one end of the wheel hub motor shaft 31 is provided with the wheel 5, the other end of the wheel hub motor shaft 31 is fixed on a wheel hub motor shaft bracket 34 through a bearing, the pressure block 26 is arranged above the wheel hub motor shaft 31 through a vehicle body suspension vibration absorber assembly, a wheel hub motor power vibration absorber assembly is arranged between the inside of the wheel hub motor rotor 6 and the wheel hub motor shaft 31, and the wheel hub motor stator 7 is, the wheel 5 is in contact with the underlying simulated road surface runner 3, and the circumferential surface of the wheel 5 interacts with the reaction surface to simulate the interaction of the wheel during road travel.
The sensor assembly comprises a hub motor shaft sensor 8 and a hub motor rotor sensor 16 for evaluating the vibration reduction performance of the hub motor dynamic vibration absorber assembly, and a vehicle body sensor 24 and an axle sensor 35 for evaluating the vibration reduction performance of the vehicle body suspension vibration absorber assembly; the hub motor shaft sensor 8 is arranged on a hub motor shaft 31 inside the hub motor rotor 6, the hub motor rotor sensor 16 is arranged on the hub motor rotor 6, the vehicle body sensor 24 is arranged on the pressure block 26, and the axle sensor 35 is arranged on the hub motor shaft 31 below the pressure block 26.
Example 2
Preferably, the road surface simulating assembly further includes a drive motor support 38 for supporting the simulated road surface drive motor 36. The driving motor bracket 38, the simulated road surface left support 1 and the simulated road surface right support 37 are arranged to ensure that the whole road surface simulation assembly stably runs. The cooperation is with elastic coupling 4 for reduce the vibration that simulation road surface driving motor transmitted the simulation road surface runner, guarantee the even running of simulation road surface runner, reduce because the measurement error that rocks and cause of simulation road surface runner.
Preferably, the simulated road surface wheels 3 are replaceable to accommodate measurements in different road conditions.
Preferably, the vehicle body suspension vibration absorber assembly comprises a suspension spring 23, a suspension fixed damper 25 and a suspension adjustable damper 27, wherein the suspension fixed damper 25 and the suspension adjustable damper 27 are added to the system, the suspension fixed damper 25 and the suspension adjustable damper 27 are used for absorbing vibration from road excitation under the action of different vehicle body weights, and damping adjustment can be carried out according to the change of vehicle frame loads, so that the vehicle frame vibration reduction effect is better.
The dynamic vibration absorber component of the hub motor comprises a dynamic vibration absorber spring 12, a dynamic vibration absorber fixed damper 17 and a dynamic vibration absorber adjustable damper 18, wherein the dynamic vibration absorber fixed damper 17 and the dynamic vibration absorber adjustable damper 18 are added aiming at the system, and are used for absorbing the vibration from road excitation and the hub motor under the action of different weights of the hub motor and carrying out damping adjustment according to the load change of the hub motor, so that the impact of the hub motor on a vehicle body is minimum.
The lower end of the dynamic vibration absorber spring 12 is arranged on the hub motor shaft 31 through a dynamic vibration absorber spring lower support 9, and the upper end of the dynamic vibration absorber spring is arranged on the hub motor rotor 6 through a dynamic vibration absorber spring upper support 13, so that the dynamic vibration absorber spring 12 can be conveniently replaced and installed;
the lower end of the dynamic vibration absorber fixed damper 17 is arranged on the hub motor shaft 31 through a dynamic vibration absorber fixed damper lower support 10, and the upper end of the dynamic vibration absorber fixed damper lower support is arranged on the hub motor rotor 6 through a dynamic vibration absorber fixed damper upper support 14, so that the dynamic vibration absorber fixed damper 17 can be conveniently replaced and installed;
the lower end of the adjustable damper 18 of the dynamic vibration absorber is arranged on the hub motor shaft 31 through the lower support 11 of the adjustable damper of the dynamic vibration absorber, and the upper end of the adjustable damper of the dynamic vibration absorber is arranged on the rotor 6 of the hub motor through the upper support 15 of the adjustable damper of the dynamic vibration absorber, so that the adjustable damper 18 of the dynamic vibration absorber can be conveniently replaced and arranged;
the suspension spring 23 is mounted on the hub motor shaft 31 through a suspension spring lower support 28, and the upper end of the suspension spring is mounted on the pressure block 26 through a suspension fixed damper upper support 19, so that the suspension spring 23 is convenient to replace and mount;
the suspension fixed damper 25 is arranged on the hub motor shaft 31 through a suspension fixed damper lower support 29, and the upper end of the suspension fixed damper lower support is arranged on the pressure block 26 through a suspension fixed damper upper support 20, so that the suspension fixed damper 25 is convenient to replace and install;
the suspension adjustable damper 27 is mounted on the hub motor shaft 31 through a suspension adjustable damper lower support 30, and the upper end of the suspension adjustable damper is mounted on the pressure block 26 through a suspension adjustable damper upper support 21, so that the suspension adjustable damper 27 can be conveniently replaced and mounted.
Specifically, the hub motor shaft sensor 8, the hub motor rotor sensor 16, the vehicle body sensor 24, and the axle sensor 35 are an acceleration sensor, a velocity sensor, or a displacement sensor, respectively. The sensors can calculate the required test result through mathematical calculation processes such as integral derivation, and the like, and the specific calculation process belongs to the prior art in the field and is not described herein any more.
Preferably, the hub motor shaft sensor 8 and the hub motor rotor sensor 16 are respectively connected with the control center 33 through wireless communication, so as to avoid line winding caused by rotation.
Preferably, the vehicle body sensor 24 and the axle sensor 35 are both connected to the control center 33 through a wireless communication link or a data line.
Example 3
The test method of the wheel hub motor vibration damping performance test system in the embodiment 1 comprises the following steps:
step 1: installing and debugging the vibration reduction performance test system of the hub motor;
step 2: the control center 33 sends out an instruction, controls the simulated road surface driving motor 36 to be started through the data interface box 32, and drives the rotating shaft 2 to rotate, so as to drive the simulated road surface rotating wheel 3 to rotate;
and step 3: the control center 33 sends out an instruction, the data interface box 32 controls the hub motor stator 7 to be electrified, and the electrified hub motor stator 7 electromagnetically drives the hub motor rotor 6 so as to drive the wheel 5 to rotate;
and 4, step 4: the control center 33 sends a measurement instruction, and the hub motor shaft sensor 8 and the hub motor rotor sensor 16 transmit the collected vibration absorber test data to the control center 33 through wireless communication; the vehicle body sensor 24 and the axle sensor 35 transmit the collected suspension test data to the control center 33 through wireless communication or data lines;
and 5: the control center 33 analyzes and calculates the received vibration absorber test data to obtain the transfer function and the amplitude-frequency characteristic of the hub motor dynamic vibration absorber;
the control center 33 analyzes and calculates the received suspension test data to obtain the transfer function and amplitude-frequency characteristic of the suspension;
step 6: replacing one or more of the simulated road surface runner 3, the vehicle body adjustable mass block 22, the dynamic vibration absorber spring 12, the dynamic vibration absorber fixed damper 17, the dynamic vibration absorber adjustable damper 18, the suspension spring 23, the suspension fixed damper 25 and the suspension adjustable damper 27, and repeating the steps 1-5 to obtain a test and evaluation result.
The calculation of the transfer function and the amplitude-frequency characteristic is known in the art, and reference may be made to the following documents:
(1)Weizhi Song；Yanqing Zhao；Haijun Zhao；Hui Zhou；Kai Liang；Adaptivedynamic vibration absorber based on a new type of smart material,NoiseControl Engineering Journal,2017,65(3)：191-196.
(2) song Wei Zhi; the Yaoyongyu; zhao navy; zhao hongxia; recording Yuanesui; old, smart and brave; vibration absorber design and current control method based on novel materials, vibration, test and diagnosis, 2018,38 (5): 1009-1084.
And will not be described in detail herein.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A system for testing the vibration damping performance of an in-wheel motor is characterized by comprising a road surface simulation component, an in-wheel motor vehicle simulation component, a sensor component and a control center;
the road surface simulation assembly comprises a simulated road surface driving motor, a rotating shaft arranged on an output shaft of the simulated road surface driving motor through an elastic coupling, and a simulated road surface rotating wheel arranged on the rotating shaft and rotating along with the rotating shaft, wherein the simulated road surface rotating wheel is rotatably connected to a support through the rotating shaft, and the circumferential surface of the simulated road surface rotating wheel forms an action surface of a simulated road surface;
the wheel hub motor vehicle simulation assembly comprises a wheel consisting of a tire and a wheel hub, a wheel hub motor rotor and a wheel hub motor stator for driving the wheel to rotate, a wheel hub motor shaft, a pressure block for simulating vehicle body load and an adjustable mass block placed on the pressure block, wherein the wheel, the wheel hub motor rotor, the wheel hub motor stator and the wheel hub motor shaft are horizontally and coaxially arranged, one end of the wheel hub motor shaft is provided with the wheel, the other end of the wheel hub motor shaft is fixed on a wheel hub motor shaft bracket through a bearing, the pressure block is arranged above the wheel hub motor shaft through a vehicle body suspension vibration absorber assembly, and a wheel hub motor power vibration absorber assembly is arranged between the interior of the wheel hub motor rotor and the wheel hub motor;
the sensor assembly comprises a hub motor shaft sensor and a hub motor rotor sensor which are used for evaluating the vibration reduction performance of the hub motor dynamic vibration absorber assembly, and a vehicle body sensor and an axle sensor which are used for evaluating the vibration reduction performance of the vehicle body suspension vibration absorber assembly; the hub motor shaft sensor is arranged on a hub motor shaft in the hub motor rotor, the hub motor rotor sensor is arranged on the hub motor rotor, the vehicle body sensor is arranged on the pressure block, and the vehicle shaft sensor is arranged on the hub motor shaft below the pressure block;
the simulated road surface driving motor and the hub motor stator are respectively electrically connected with the control center, and the sensor assembly is in communication connection with the control center.
2. The in-wheel motor vibration damping performance test system according to claim 1, wherein the in-wheel motor vehicle simulation assembly is arranged on a horizontal plane, the road surface simulation assembly is arranged in a pit below the horizontal plane, and the simulated road surface rotating wheel is positioned right below the tire and is in contact with the tire; the simulation road surface driving motor and the hub motor stator are respectively electrically connected with a data interface box in the control center.
3. The in-wheel motor vibration damping performance testing system of claim 1, wherein the road surface simulation assembly further comprises a drive motor bracket for supporting the simulated road surface drive motor.
4. The in-wheel motor vibration damping performance test system according to claim 3, wherein the road surface simulation runner is one of a plurality of replaceable runners, and the acting surface roughness and flatness of each runner are different to simulate different road surfaces.
5. The in-wheel motor vibration damping performance testing system according to claim 1, wherein the vehicle body suspension vibration absorber assembly comprises a suspension spring, a suspension fixed damper and a suspension adjustable damper; the dynamic vibration absorber component of the hub motor comprises a dynamic vibration absorber spring, a fixed damper of the dynamic vibration absorber and an adjustable damper of the dynamic vibration absorber.
6. The system for testing the vibration damping performance of the hub motor as claimed in claim 5, wherein the suspension spring is mounted on the hub motor shaft through a suspension spring lower support, and the upper end of the suspension spring is mounted on the pressure block through a suspension fixed damper upper support;
the suspension fixed damper is arranged on the shaft of the hub motor through a suspension fixed damper lower support, and the upper end of the suspension fixed damper is arranged on the pressure block through a suspension fixed damper upper support;
the suspension adjustable damper is arranged on the shaft of the hub motor through a suspension adjustable damper lower support, and the upper end of the suspension adjustable damper is arranged on the pressure block through a suspension adjustable damper upper support;
the lower end of the dynamic vibration absorber spring is arranged on the hub motor shaft through a dynamic vibration absorber spring lower support, and the upper end of the dynamic vibration absorber spring upper support is arranged on the hub motor rotor;
the lower end of the dynamic vibration absorber fixed damper is arranged on the shaft of the hub motor through a dynamic vibration absorber fixed damper lower support, and the upper end of the dynamic vibration absorber fixed damper upper support is arranged on the rotor of the hub motor;
the lower end of the adjustable damper of the dynamic vibration absorber is arranged on the shaft of the hub motor through the lower support of the adjustable damper of the dynamic vibration absorber, and the upper end of the adjustable damper of the dynamic vibration absorber is arranged on the rotor of the hub motor through the upper support of the adjustable damper of the dynamic vibration absorber.
7. The system for testing the vibration damping performance of the hub motor according to claim 1, wherein the hub motor shaft sensor is an acceleration sensor, a speed sensor or a displacement sensor;
the hub motor rotor sensor is an acceleration sensor, a speed sensor or a displacement sensor;
the vehicle body sensor is an acceleration sensor, a speed sensor or a displacement sensor;
the axle sensor is an acceleration sensor, a speed sensor or a displacement sensor.
8. The system for testing the vibration damping performance of the hub motor according to claim 7, wherein the hub motor shaft sensor and the hub motor rotor sensor are respectively connected with the control center through wireless communication.
9. The in-wheel motor vibration damping performance test system according to claim 7, wherein the vehicle body sensor and the axle sensor are connected with the control center through wireless communication or data lines.
10. The test method of the vibration damping performance test system of the hub motor according to any one of claims 1 to 9, characterized by comprising the following steps:
step 1: installing and debugging the vibration reduction performance test system of the hub motor;
step 2: the control center controls the simulated road surface driving motor to be started to drive the rotating shaft to rotate, so that the simulated road surface rotating wheel is driven to rotate;
and step 3: the control center controls the hub motor stator to be electrified, and the electrified hub motor stator electromagnetically drives the hub motor rotor so as to drive the wheel to rotate;
and 4, step 4: the hub motor shaft sensor and the hub motor rotor sensor transmit the collected vibration absorber test data to the control center through wireless communication; the vehicle body sensor and the axle sensor transmit the collected suspension test data to a control center through wireless communication or a data line;
and 5: the control center analyzes and calculates the received vibration absorber test data to obtain the transfer function and the amplitude-frequency characteristic of the dynamic vibration absorber of the hub motor;
the control center analyzes and calculates the received suspension test data to obtain a transfer function and amplitude-frequency characteristics of the suspension;
step 6: replacing one or more of the simulated road surface rotating wheel, the vehicle body adjustable mass block, the dynamic vibration absorber spring, the dynamic vibration absorber fixed damper, the dynamic vibration absorber adjustable damper, the suspension spring, the suspension fixed damper and the suspension adjustable damper, and repeating the steps 1-5 to obtain a test and evaluation result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010394263.0A CN111638070B (en) | 2020-05-11 | 2020-05-11 | System and method for testing vibration reduction performance of hub motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010394263.0A CN111638070B (en) | 2020-05-11 | 2020-05-11 | System and method for testing vibration reduction performance of hub motor |
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| Publication Number | Publication Date |
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| CN111638070A true CN111638070A (en) | 2020-09-08 |
| CN111638070B CN111638070B (en) | 2022-04-15 |
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| CN202010394263.0A Expired - Fee Related CN111638070B (en) | 2020-05-11 | 2020-05-11 | System and method for testing vibration reduction performance of hub motor |
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Cited By (2)
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| CN115407198A (en) * | 2022-09-26 | 2022-11-29 | 华东交通大学 | Device and method for testing performance of hub motor |
| CN115407198B (en) * | 2022-09-26 | 2024-05-14 | 华东交通大学 | Hub motor performance testing device and method |
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| CN115407198B (en) * | 2022-09-26 | 2024-05-14 | 华东交通大学 | Hub motor performance testing device and method |
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| Publication number | Publication date |
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| CN111638070B (en) | 2022-04-15 |
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