CN113390648A - Power assembly suspension vibration isolation rate testing system and method - Google Patents
Power assembly suspension vibration isolation rate testing system and method Download PDFInfo
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- CN113390648A CN113390648A CN202110598960.2A CN202110598960A CN113390648A CN 113390648 A CN113390648 A CN 113390648A CN 202110598960 A CN202110598960 A CN 202110598960A CN 113390648 A CN113390648 A CN 113390648A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/022—Vibration control arrangements, e.g. for generating random vibrations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/52—Determining velocity
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention aims to provide a system and a method for testing the suspension vibration isolation rate of a power assembly. The method comprises the following steps: A. starting a vehicle to be tested; B. acquiring the speed and the acceleration of a vehicle to be tested, the vibration acceleration of a vibration driving end and the vibration acceleration of a vibration driven end; C. comparing the vibration acceleration of the vibration driving end with the vibration acceleration of the vibration driven end to obtain the vibration isolation rate; D. judging whether the shock insulation rate under the current working condition meets the design standard or not, and if not, alarming; E. and summarizing to obtain whether the vibration isolation rate under each speed working condition or acceleration working condition meets the design standard.
Description
Technical Field
The invention relates to the technical field of vehicle testing, in particular to a test for the suspension vibration isolation rate of a power assembly.
Background
With the increasing demand of consumers for automobile comfort, the production of comfortable automobiles becomes a trend of automobile enterprises. At present, newly developed vehicles in a whole vehicle factory generally have the problem of large cab vibration, particularly newly developed new energy vehicles are generally designed on the basis of fuel vehicles, and due to the fact that vibration frequencies of a motor and an engine are greatly different, the vibration isolation rate of a suspension system is low due to the fact that the power assembly suspension system is not matched with the parameters of the whole vehicle easily, and the vibration of a power assembly can be transmitted to the inside of a cab to influence the comfort of passengers in the vehicle. Therefore, it is necessary to test the vibration isolation performance of the cab suspension system.
The detection of the vibration isolation rate of the driving suspension system in the prior art can only be tested on a test bed, the whole vehicle cannot be matched in real time, the development period is long, the matching condition of a power assembly and the parameters of the whole vehicle cannot be tested, the process that the structural parameters need to be readjusted due to unqualified matching still occurs during matching of the whole vehicle, professional equipment is required for detection in process detection, the cost is high, and the detection cost is high.
Disclosure of Invention
The invention aims to provide a system and a method for testing the suspension vibration isolation rate of a power assembly, which can test the vibration isolation performance of the power assembly matched with a vehicle.
In order to realize the purpose, the invention adopts the technical scheme that: a power assembly suspension vibration isolation rate testing system comprises three-axial vibration acceleration sensors which are respectively installed at a vibration driving end and a vibration driven end of a vehicle to be tested, an NI acquisition card is used for acquiring vibration parameters on the three-axial vibration acceleration sensors and vehicle speed and acceleration parameters of the vehicle to be tested, and the NI acquisition card is connected with a computing unit.
A method for testing the suspension vibration isolation rate of a power assembly comprises the following steps: A. starting a vehicle to be tested; B. acquiring the speed and the acceleration of a vehicle to be tested, the vibration acceleration of a vibration driving end and the vibration acceleration of a vibration driven end; C. comparing the vibration acceleration of the vibration driving end with the vibration acceleration of the vibration driven end to obtain the vibration isolation rate; D. judging whether the shock insulation rate under the current working condition meets the design standard or not, and if not, alarming; E. and summarizing to obtain whether the vibration isolation rate under each speed working condition or acceleration working condition meets the design standard.
According to the scheme, vibration data of the suspension system can be collected in real time at the idle speed of the automobile and according to the specified speed through the control cabinet and the upper computer, and then whether the vibration isolation rate of the suspension system meets the design requirement or not is calculated in real time. The application range is wide, and the suspension system can be tested for driving of any vehicle type; the hardware cost is low, the reliability is high, the operation is easy only by adopting the NI control cabinet, the acquisition card, the upper computer and the sensor, the interface can display data in real time only by compiling a corresponding LabVIEW application program, the vibration isolation rate of the suspension system is judged, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
Detailed Description
A power assembly suspension vibration isolation rate testing system comprises three-axial vibration acceleration sensors which are respectively installed at a vibration driving end and a vibration driven end of a vehicle to be tested, an NI acquisition card is used for acquiring vibration parameters on the three-axial vibration acceleration sensors and vehicle speed and acceleration parameters of the vehicle to be tested, and the NI acquisition card is connected with a computing unit.
In the scheme, the vibration driving end is a vibration source, the vibration driven end is an area needing vibration reduction, and the suspension is positioned between the vibration driving end and the vibration driven end. And calculating the vibration isolation rate by comparing the vibration parameters at the two positions. The vibration data of the suspension system can be collected in real time at the idle speed of the automobile and according to the specified speed through the control cabinet and the upper computer, and then whether the vibration isolation rate of the suspension system meets the design requirement or not is calculated in real time. The application range is wide, and the suspension system can be tested for driving of any vehicle type; the hardware cost is low, the reliability is high, the operation is easy only by adopting the NI control cabinet, the acquisition card, the upper computer and the sensor, the interface can display data in real time only by compiling a corresponding LabVIEW application program, the vibration isolation rate of the suspension system is judged, and the production efficiency is improved.
The method comprises the following steps: A. starting a vehicle to be tested; B. acquiring the speed and the acceleration of a vehicle to be tested, the vibration acceleration of a vibration driving end and the vibration acceleration of a vibration driven end; C. comparing the vibration acceleration of the vibration driving end with the vibration acceleration of the vibration driven end to obtain the vibration isolation rate; D. judging whether the shock insulation rate under the current working condition meets the design standard or not, and if not, alarming; E. and summarizing to obtain whether the vibration isolation rate under each speed working condition or acceleration working condition meets the design standard.
The NI acquisition card is arranged on an NI case, the NI case is connected with a computer containing LabVIEW, and the computer is powered by a vehicle-mounted power supply. Therefore, an additional power supply is not required to be arranged, external wiring is not required to be carried out, the test system can be directly arranged on the vehicle to be tested to move along with the vehicle to be tested, and the test is carried out in a complex environment.
The device for acquiring the speed of the vehicle to be detected is a GPS speed sensor arranged on the roof of the vehicle, and the device for acquiring the acceleration of the vehicle to be detected is a Crossbow VG440 acceleration sensor. The Crossbow VG440 acceleration sensor is a vertical gyro system based on MEMS devices, which can detect the parameters of the current vehicle such as acceleration, pitch or roll angle, and turning angle.
The vibration driving end is a power assembly or a wheel, and the vibration driven end is a steering wheel or a seat or an in-car bottom plate or an automobile pedal. The vibration active end is a vibration source which can be a power assembly or a wheel, the wheel can vibrate when contacting with the ground, and the system can test the vibration isolation rate of the chassis under bumpy road conditions. Meanwhile, a steering wheel, a seat, an in-vehicle bottom plate, an automobile pedal and the like are vibration parts which are easy to sense by drivers and passengers in the automobile, and therefore the vibration parts are set as vibration passive ends.
The vehicle is divided into three working conditions according to the acceleration and the speed of the vehicle, namely an idling working condition, a constant speed working condition and an acceleration working condition. The vibration of the engine under various working conditions can be simulated.
And under the idling working condition, acquiring triaxial vibration acceleration values of the driving and driven vibration ends of the vehicle, and judging whether the vibration isolation rate of the idling working condition meets the corresponding design standard.
Under the constant speed working condition, the automobile respectively keeps the automobile speeds of 20km/h, 40km/h, 60km/h, 80km/h, 100km/h and 120km/h to run at constant speed, after the corresponding automobile speeds are collected through a GPS sensor, three axial vibration acceleration values of the driving end and the driven end of the automobile are collected at the same time, the vibration isolation rate is displayed through program processing, and whether the vibration isolation rate of different constant speed working conditions meets the corresponding design standard or not is judged.
Under the acceleration working condition, the automobile respectively keeps acceleration of 0.1g, 0.3g, 0.5g, 0.7g and 0.9g to accelerate, after corresponding acceleration is collected through a Crossbow VG440 acceleration sensor, triaxial vibration acceleration values of the driving end and the driven end of the automobile are collected at the same time, vibration isolation rate of the automobile is displayed through program processing, and whether the vibration isolation rate of different acceleration working conditions meets corresponding design standards is judged.
Claims (9)
1. The utility model provides a power assembly suspension vibration isolation rate test system which characterized in that: the system comprises three-axial vibration acceleration sensors which are respectively arranged at a vibration driving end and a vibration driven end of a vehicle to be tested, an NI acquisition card acquires vibration parameters on the three-axial vibration acceleration sensors and vehicle speed and acceleration parameters of the vehicle to be tested, and the NI acquisition card is connected with a computing unit.
2. A method for testing the suspension vibration isolation rate of a power assembly is characterized by comprising the following steps:
A. starting a vehicle to be tested;
B. acquiring the speed and the acceleration of a vehicle to be tested, the vibration acceleration of a vibration driving end and the vibration acceleration of a vibration driven end;
C. comparing the vibration acceleration of the vibration driving end with the vibration acceleration of the vibration driven end to obtain the vibration isolation rate;
D. judging whether the shock insulation rate under the current working condition meets the design standard or not, and if not, alarming;
E. and summarizing to obtain whether the vibration isolation rate under each speed working condition or acceleration working condition meets the design standard.
3. The locomotion assembly suspension vibration isolation rate testing system of claim 1, wherein: the NI acquisition card is arranged on an NI case, the NI case is connected with a computer containing LabVIEW, and the computer is powered by a vehicle-mounted power supply.
4. The locomotion assembly suspension vibration isolation rate testing system of claim 1, wherein: the device for acquiring the speed of the vehicle to be detected is a GPS speed sensor arranged on the roof of the vehicle, and the device for acquiring the acceleration of the vehicle to be detected is a Crossbow VG440 acceleration sensor.
5. The locomotion assembly suspension vibration isolation rate testing system of claim 1, wherein: the vibration driving end is a power assembly or a wheel, and the vibration driven end is a steering wheel or a seat or an in-car bottom plate or an automobile pedal.
6. The powertrain mount isolation rate test method of claim 2, wherein: the vehicle is divided into three working conditions according to the acceleration and the speed of the vehicle, namely an idling working condition, a constant speed working condition and an acceleration working condition.
7. The powertrain mount isolation rate test method of claim 6, wherein: and under the idling working condition, acquiring triaxial vibration acceleration values of the driving and driven vibration ends of the vehicle, and judging whether the vibration isolation rate of the idling working condition meets the corresponding design standard.
8. The powertrain mount isolation rate test method of claim 6, wherein: under the constant speed working condition, the automobile respectively keeps the automobile speeds of 20km/h, 40km/h, 60km/h, 80km/h, 100km/h and 120km/h to run at constant speed, after the corresponding automobile speeds are collected through a GPS sensor, three axial vibration acceleration values of the driving end and the driven end of the automobile are collected at the same time, the vibration isolation rate is displayed through program processing, and whether the vibration isolation rate of different constant speed working conditions meets the corresponding design standard or not is judged.
9. The powertrain mount isolation rate test method of claim 6, wherein: under the acceleration working condition, the automobile respectively keeps acceleration of 0.1g, 0.3g, 0.5g, 0.7g and 0.9g to accelerate, after corresponding acceleration is collected through a Crossbow VG440 acceleration sensor, triaxial vibration acceleration values of the driving end and the driven end of the automobile are collected at the same time, vibration isolation rate of the automobile is displayed through program processing, and whether the vibration isolation rate of different acceleration working conditions meets corresponding design standards is judged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110598960.2A CN113390648A (en) | 2021-05-31 | 2021-05-31 | Power assembly suspension vibration isolation rate testing system and method |
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| CN202110598960.2A CN113390648A (en) | 2021-05-31 | 2021-05-31 | Power assembly suspension vibration isolation rate testing system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114241780A (en) * | 2021-11-29 | 2022-03-25 | 深圳市锐明技术股份有限公司 | Vehicle model identification method and device, electronic equipment and readable storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168542A (en) * | 2016-07-06 | 2016-11-30 | 广州汽车集团股份有限公司 | ONLINE RECOGNITION method, system and the vehicle of a kind of vehicle working condition |
| CN106568604A (en) * | 2016-11-09 | 2017-04-19 | 华南理工大学 | Calculation method for vibration isolation rate of automotive power assembly suspension system |
| CN106644512A (en) * | 2016-12-22 | 2017-05-10 | 北京汽车股份有限公司 | Noise analysis method and system based on power assembly loads |
| CN207336090U (en) * | 2017-09-25 | 2018-05-08 | 比亚迪股份有限公司 | A kind of active engine mount testing equipment |
| CN108225800A (en) * | 2018-03-13 | 2018-06-29 | 华南理工大学 | A kind of 1/4 vehicle active suspension pilot system |
| CN111678666A (en) * | 2020-06-09 | 2020-09-18 | 安徽江淮汽车集团股份有限公司 | Method, device and equipment for detecting vibration isolation performance of engine mount and storage medium |
| DE102019206141A1 (en) * | 2019-04-30 | 2020-11-05 | Zf Friedrichshafen Ag | Computer-implemented method for vibration damping of noises for vehicles comprising an electric drive, control device for a vehicle and method, computer program and device for vibration damping of noises for vehicles comprising an electric drive |
| CN112595528A (en) * | 2020-08-24 | 2021-04-02 | 中国汽车技术研究中心有限公司 | Method for identifying driving side exciting force of power assembly suspension under vehicle running condition |
-
2021
- 2021-05-31 CN CN202110598960.2A patent/CN113390648A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168542A (en) * | 2016-07-06 | 2016-11-30 | 广州汽车集团股份有限公司 | ONLINE RECOGNITION method, system and the vehicle of a kind of vehicle working condition |
| CN106568604A (en) * | 2016-11-09 | 2017-04-19 | 华南理工大学 | Calculation method for vibration isolation rate of automotive power assembly suspension system |
| CN106644512A (en) * | 2016-12-22 | 2017-05-10 | 北京汽车股份有限公司 | Noise analysis method and system based on power assembly loads |
| CN207336090U (en) * | 2017-09-25 | 2018-05-08 | 比亚迪股份有限公司 | A kind of active engine mount testing equipment |
| CN108225800A (en) * | 2018-03-13 | 2018-06-29 | 华南理工大学 | A kind of 1/4 vehicle active suspension pilot system |
| DE102019206141A1 (en) * | 2019-04-30 | 2020-11-05 | Zf Friedrichshafen Ag | Computer-implemented method for vibration damping of noises for vehicles comprising an electric drive, control device for a vehicle and method, computer program and device for vibration damping of noises for vehicles comprising an electric drive |
| CN111678666A (en) * | 2020-06-09 | 2020-09-18 | 安徽江淮汽车集团股份有限公司 | Method, device and equipment for detecting vibration isolation performance of engine mount and storage medium |
| CN112595528A (en) * | 2020-08-24 | 2021-04-02 | 中国汽车技术研究中心有限公司 | Method for identifying driving side exciting force of power assembly suspension under vehicle running condition |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114241780A (en) * | 2021-11-29 | 2022-03-25 | 深圳市锐明技术股份有限公司 | Vehicle model identification method and device, electronic equipment and readable storage medium |
| CN114241780B (en) * | 2021-11-29 | 2023-01-06 | 深圳市锐明技术股份有限公司 | Vehicle model identification method and device, electronic equipment and readable storage medium |
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Application publication date: 20210914 |
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