CN102788639A - Device and method for testing noise of electric automobile reducer - Google Patents
Device and method for testing noise of electric automobile reducer Download PDFInfo
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- CN102788639A CN102788639A CN201210151197XA CN201210151197A CN102788639A CN 102788639 A CN102788639 A CN 102788639A CN 201210151197X A CN201210151197X A CN 201210151197XA CN 201210151197 A CN201210151197 A CN 201210151197A CN 102788639 A CN102788639 A CN 102788639A
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- noise
- speed reduction
- reduction unit
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- electric automobile
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- 238000012360 testing method Methods 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 7
- 239000003638 chemical reducing agent Substances 0.000 title abstract description 5
- 238000009434 installation Methods 0.000 claims description 21
- 238000005259 measurement Methods 0.000 claims description 9
- 238000013016 damping Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 239000000725 suspension Substances 0.000 abstract 2
- 238000010998 test method Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 3
- 238000012937 correction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000012353 t test Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention relates to a device and a method for testing noise of an electric automobile reducer. The device comprises a noise test bracket, a battery, a connecting wire harness, a controller, a motor, an automobile suspension device and a transmission mechanism, wherein the battery is connected to the controller through the connecting wire harness; the controller is connected to the motor through the connecting wire harness for controlling the motor and supplying power to the motor; the motor is connected with the measured reducer through the transmission mechanism; and the measured reducer is fixed on the test bracket through the automobile suspension device.
Description
Technical field
The invention belongs to vehicle product test technical field, be specifically related to a kind of noise proving installation and method of testing thereof of electric automobile speed reduction unit.
Background technology
The test of electric automobile speed reduction unit noise is meant in the speed reduction unit course of normal operation, the noise index that speed reduction unit produces.Noise is a kind of mode that embodies human comfort, produces client's complaint if noise is crossed conference, and brand value is produced very big influence.At present, because the electric automobile reducer structure is different with the traditional vehicle structure, traditional test condition and method of testing all can't meet the demands, and the noise index can't be measured accurately.
Summary of the invention
The objective of the invention is to improve the Noise Testing of electric automobile speed reduction unit; Specifically; The object of the present invention is to provide a kind of noise proving installation and method of testing thereof of electric automobile speed reduction unit, it can measure the noise of electric automobile speed reduction unit, and simple in structure, easy to use.
A kind of noise testboard bay and method of testing of electric automobile speed reduction unit are made a kind of support that is used for the noise test by oneself, reach the regulation parameter through electric vehicle motor drive speed reduction unit and test, relevant test data during the record running.
A kind of proving installation of electric automobile speed reduction unit noise comprises that electric bicycle uses motor, control system, motor electric power system.A cage structure support is set, and battery, controller are placed in the support bottom; The upper end is suspended by car load and connects motor and speed reduction unit.Said support bottom mainly is made up of control system, has placed battery, battery controller, and electric machine controller connects with wire harness and is fixed on the support; Support upper end be a test component, by car load suspend fixed electrical machinery and speed reduction unit, connects with mechanical system and to fix.
Said motor and speed reduction unit link together.
The said car load rigging position point of pressing, installation suspends and motor and speed reduction unit, reaches with the real vehicle state consistency and tests.
Said support is welded with square tube, and is simple in structure firm, and do not influence the normal function test.
Said frame bottom is done support by 1 rubber blanket.
A kind of method of testing of electric automobile speed reduction unit noise may further comprise the steps:
1) each component-assembled is good, rack-mount, speed reduction unit need carry out earlier can testing after the break-in.
2) tested speed reduction unit is before testing table is installed, on the speed reduction unit, left and right, after arrange sound meter or microphone everywhere, the noise that testing table input regulation test rotating speed records is background noise.
When 3) oily temperature rise is to set point of temperature, input regulation rotating speed, measurement or collection, record sound pressure level.
4) revise the noise figure of surveying, the noise figure that tested each measuring point of speed reduction unit is surveyed and the background noise value of this point are revised by regulation.
Concrete technical scheme is following:
A kind of noise proving installation of electric automobile speed reduction unit comprises the noise test bracket, battery; Rat tail, controller, motor; Car load suspends and gear train, and wherein, battery is connected to controller through rat tail; Controller is connected to motor through rat tail and is used to control motor and to its power supply, adopts gear train to be connected between motor and the measured piece speed reduction unit, and suspends with car load and to be fixed on the test bracket.
Further, the noise test bracket is a cage structure support, and battery and controller are placed in the support bottom, and motor and measured piece speed reduction unit are fixed on the upper end of noise test bracket.
Further, said controller comprises: battery controller and electric machine controller, battery controller are fixed on the support and with wire harness with electric machine controller and are connected
Said support is welded with square tube, and the bottom of support is sticked rubber cushion blocks and done the vibration damping support.
Further, motor is used motor for the electric motor car car load.
The method of testing of the noise proving installation of above-mentioned electric automobile speed reduction unit may further comprise the steps:
1) each component-assembled is good, rack-mount, speed reduction unit carries out break-in earlier;
2) tested speed reduction unit is before testing table is installed, on the speed reduction unit, left and right, after arrange sound meter or microphone everywhere; The noise that testing table input regulation test rotating speed records is background noise;
When 3) oily temperature rise is to set point of temperature, testing table input regulation rotating speed, measurement or collection, record sound pressure level;
4) revise the noise figure of surveying, the noise figure that tested each measuring point of speed reduction unit is surveyed and the background noise value of this point are revised by regulation.
Further, also comprise step 5): duplicate measurements is averaged several times.
Further, also comprise the preparation process before the test: carry out background noise test, speed reduction unit is not connected with motor, when motor is arranged to test regulation parameter earlier, on the measurement retarder location, left and right, after the level of noise of layout points everywhere; Measure or gather, write down sound pressure level, as the local noise standard; The measured piece speed reduction unit carries out break-in in advance by regulation break-in standard; Again the measured piece speed reduction unit is connected through gearing, and running to oily temperature reaches set point of temperature.
Compare with present prior art, the present invention can solve electric automobile speed reduction unit noise test problem, for improving customer satisfaction, raises brand value, and important referential data is provided.Because the proving installation that manufactures and designs according to electric automobile speed reduction unit special structural characteristics of the present invention, can't test problem thereby solved, the noise performance of product is detected and design improvement has great significance.It is simple in structure, and integral support is supported by the square tube welding, only needs control device, and mechanical driving device and mechanical clamping just can be realized invention.Package unit is used the control system of electric automobile parts, and is rack-mount, convenient and practical, and debugging is simple.Measure portion is done in this covering device upper end, and noise transmission is without hindrance, is convenient for measuring and tests accurately; Parts such as bottom placement battery are done counterweight, when the motor high speed rotating, can prevent the unstable vibrating noise influence test effect that produces of support.
Description of drawings
Fig. 1 is a perspective view of the present invention.
Among the figure: 1. battery; 2. wire harness connects; 3. controller; 4. car load suspends; 5. motor; 6. be in transmission connection; 7. tested speed reduction unit.
Embodiment
Describe the present invention according to accompanying drawing below, it is a kind of preferred embodiment in the numerous embodiments of the present invention.
As shown in the figure; A kind of structure of electric automobile speed reduction unit noise proving installation comprises integral support; Battery 1 is placed in the support bottom, connects controller 3 with wire harness 2, and controller 3 is through wire harness 2 controls and give motor 4 power supplies; The upper end of support is motor 4 and measured piece speed reduction unit 7, connects the back and suspends with car load and 4 be fixed on the test bracket.Rubber cushion blocks is sticked in the bottom of support, prevents that support from producing the vibration effect test when the motor working at high speed.
A kind of method of application of noise proving installation of electric automobile speed reduction unit may further comprise the steps:
1. prepare before the test: each parts press the schematic structure installation, install firm fasteningly, must not have loosening.Carry out background noise test earlier, speed reduction unit is not connected with motor, when motor is arranged to test regulation parameter earlier, on the measurement retarder location, left and right, after the level of noise of layout points everywhere.Measure or gather, write down sound pressure level, as the local noise standard.The measured piece speed reduction unit carries out break-in in advance by regulation break-in standard, the measured piece speed reduction unit is connected through gearing 6, and running to oily temperature reaches set point of temperature again.
2. measure: sound meter furnishing " A weighting network ", be arranged on the measured piece speed reduction unit, left and right, after layout points everywhere.Starter motor, the control motor reaches the regulation parameter, when treating that noise reaches steady state (SS), measures or gather, writes down sound pressure level.After the correction of background noise value, this value is the speed reduction unit level of noise.Duplicate measurements is averaged several times.
A kind of noise proving installation and method of testing of electric automobile speed reduction unit, self-control noise test bracket carries the electric motor car car load and uses motor, battery, devices such as controller.After stand and proving installation put up, controller is set, makes motor reach the regulation parameter and carry out the test of speed reduction unit noise.Use the electric motor car vehicle component, battery, motor, controller etc. are done the device that drives speed reduction unit.This device is provided with cage structure, and battery, test components such as controller are placed in the lower part; Motor is placed on top, tested speed reduction unit, and the noiseless wave resistance of test zone hinders, and can make things convenient for accurately to measure.With automobile-used suspending motor and measured piece speed reduction unit are installed, are pressed the real vehicle state and install, reach real vehicle state and test.Frame bottom is supported by rubber blanket, prevents that support from producing vibrating noise and enlarging, influence test effect.
A kind of method of testing of electric automobile speed reduction unit noise may further comprise the steps:
1) each component-assembled is good, rack-mount, speed reduction unit need carry out earlier can testing after the break-in.
2) tested speed reduction unit is before testing table is installed, on the speed reduction unit, left and right, after arrange sound meter or microphone everywhere, the noise that testing table input regulation test rotating speed records is background noise.
When 3) oily temperature rise is to set point of temperature, input regulation rotating speed, measurement or collection, record sound pressure level.
4) revise the noise figure of surveying, the noise figure that tested each measuring point of speed reduction unit is surveyed and the background noise value of this point are revised by regulation.
Combine accompanying drawing that the present invention has been carried out exemplary description above; Obviously the concrete realization of the present invention does not receive the restriction of aforesaid way; As long as the various improvement of having adopted method design of the present invention and technical scheme to carry out; Or directly apply to other occasion without improvement, all within protection scope of the present invention.
Claims (8)
1. the noise proving installation of an electric automobile speed reduction unit is characterized in that, comprises the noise test bracket, battery; Rat tail, controller, motor; Car load suspends and gear train, and wherein, battery is connected to controller through rat tail; Controller is connected to motor through rat tail and is used to control motor and to its power supply, adopts gear train to be connected between motor and the measured piece speed reduction unit, and suspends with car load and to be fixed on the test bracket.
2. the noise proving installation of electric automobile speed reduction unit as claimed in claim 1 is characterized in that, the noise test bracket is a cage structure support, and battery and controller are placed in the support bottom, and motor and measured piece speed reduction unit are fixed on the upper end of noise test bracket.
3. according to claim 1 or claim 2 the noise proving installation of electric automobile speed reduction unit, it is characterized in that said controller comprises: battery controller and electric machine controller, battery controller are fixed on the support and with wire harness with electric machine controller and are connected.
4. like the noise proving installation of each described electric automobile speed reduction unit among the claim 1-3, it is characterized in that said support is welded with square tube, the bottom of support is sticked rubber cushion blocks and is done the vibration damping support.
5. like the noise proving installation of each described electric automobile speed reduction unit among the claim 1-4, it is characterized in that motor is used motor for the electric motor car car load.
6. like the method for testing of the noise proving installation of the said electric automobile speed reduction unit of claim 1-5, it is characterized in that, may further comprise the steps:
1) each component-assembled is good, rack-mount, speed reduction unit carries out break-in earlier;
2) tested speed reduction unit is before testing table is installed, on the speed reduction unit, left and right, after arrange sound meter or microphone everywhere; The noise that testing table input regulation test rotating speed records is background noise;
When 3) oily temperature rise is to set point of temperature, testing table input regulation rotating speed, measurement or collection, record sound pressure level;
4) revise the noise figure of surveying, the noise figure that tested each measuring point of speed reduction unit is surveyed and the background noise value of this point are revised by regulation.
7. like the method for testing of the noise proving installation of the said electric automobile speed reduction unit of claim 6, it is characterized in that also comprise step 5): duplicate measurements is averaged several times.
8. like the method for testing of the noise proving installation of claim 6 or 7 said electric automobile speed reduction units; It is characterized in that; Also comprise test preparation process before: carry out the background noise test; Speed reduction unit is not connected with motor, when motor is arranged to test regulation parameter earlier, measure on the retarder location, left and right, after the level of noise of layout points everywhere;
Measure or gather, write down sound pressure level, as the local noise standard;
The measured piece speed reduction unit carries out break-in in advance by regulation break-in standard;
Again the measured piece speed reduction unit is connected through gearing, and running to oily temperature reaches set point of temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210151197XA CN102788639A (en) | 2012-05-16 | 2012-05-16 | Device and method for testing noise of electric automobile reducer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210151197XA CN102788639A (en) | 2012-05-16 | 2012-05-16 | Device and method for testing noise of electric automobile reducer |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215454A (en) * | 2014-09-19 | 2014-12-17 | 武汉理工大学 | Automotive rear bridge main speed reducer noise performance testing method |
| CN108180985A (en) * | 2018-01-24 | 2018-06-19 | 无锡市计量测试院 | A kind of sound level meter calibrating installation automatic control system |
| CN108871791A (en) * | 2018-06-28 | 2018-11-23 | 奇瑞汽车股份有限公司 | Automobile starting noise testing device and testing method |
| CN109406144A (en) * | 2018-12-21 | 2019-03-01 | 浙江双环传动机械股份有限公司 | RV decelerator moment and noise precision measurement apparatus and its method |
| CN109489808A (en) * | 2018-11-15 | 2019-03-19 | 南京南邦科技开发有限公司 | A kind of Noise Testing of car deceleration device |
| CN111024391A (en) * | 2019-12-12 | 2020-04-17 | 广州欧特士传动设备有限公司 | Noise testing device for speed reducer |
| CN111780851A (en) * | 2020-07-07 | 2020-10-16 | 东风博泽汽车系统有限公司 | Noise monitoring device and method for miniature speed reduction motor |
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| CN200962069Y (en) * | 2006-08-10 | 2007-10-17 | 合肥工业大学 | Online detection system for back bridge noise quality |
| US20080271536A1 (en) * | 2007-05-04 | 2008-11-06 | Dr. Ing. H.C.F. Porsche Aktiengesellschaft | Apparatus and Method for Testing Flow Noise |
| CN101393076A (en) * | 2007-09-19 | 2009-03-25 | 天津横河电子技术有限公司 | 55KW grade electricity loading test stand for automobile gear box low noise energy-conserving type under line detection and working method thereof |
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| CN102350973A (en) * | 2011-06-24 | 2012-02-15 | 张家港市江南汽车制造有限公司 | Integrated controller for pure electric automobile |
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2012
- 2012-05-16 CN CN201210151197XA patent/CN102788639A/en active Pending
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| CN2727754Y (en) * | 2004-09-09 | 2005-09-21 | 重庆宗申技术开发研究有限公司 | Starting motor testing device |
| CN200962069Y (en) * | 2006-08-10 | 2007-10-17 | 合肥工业大学 | Online detection system for back bridge noise quality |
| US20080271536A1 (en) * | 2007-05-04 | 2008-11-06 | Dr. Ing. H.C.F. Porsche Aktiengesellschaft | Apparatus and Method for Testing Flow Noise |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215454A (en) * | 2014-09-19 | 2014-12-17 | 武汉理工大学 | Automotive rear bridge main speed reducer noise performance testing method |
| CN108180985A (en) * | 2018-01-24 | 2018-06-19 | 无锡市计量测试院 | A kind of sound level meter calibrating installation automatic control system |
| CN108180985B (en) * | 2018-01-24 | 2023-06-27 | 无锡市检验检测认证研究院 | Automatic control system of sound level meter calibrating device |
| CN108871791A (en) * | 2018-06-28 | 2018-11-23 | 奇瑞汽车股份有限公司 | Automobile starting noise testing device and testing method |
| CN109489808A (en) * | 2018-11-15 | 2019-03-19 | 南京南邦科技开发有限公司 | A kind of Noise Testing of car deceleration device |
| CN109406144A (en) * | 2018-12-21 | 2019-03-01 | 浙江双环传动机械股份有限公司 | RV decelerator moment and noise precision measurement apparatus and its method |
| CN109406144B (en) * | 2018-12-21 | 2023-07-25 | 浙江环动机器人关节科技有限公司 | RV reducer moment and noise precise measurement device and method thereof |
| CN111024391A (en) * | 2019-12-12 | 2020-04-17 | 广州欧特士传动设备有限公司 | Noise testing device for speed reducer |
| CN111024391B (en) * | 2019-12-12 | 2021-11-23 | 广州欧特士传动设备有限公司 | Noise testing device for speed reducer |
| CN111780851A (en) * | 2020-07-07 | 2020-10-16 | 东风博泽汽车系统有限公司 | Noise monitoring device and method for miniature speed reduction motor |
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Application publication date: 20121121 |