CN111964916A - Method for testing real vehicle rotary drum rack measurement items by using power assembly rack - Google Patents
Method for testing real vehicle rotary drum rack measurement items by using power assembly rack Download PDFInfo
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- CN111964916A CN111964916A CN202010702784.8A CN202010702784A CN111964916A CN 111964916 A CN111964916 A CN 111964916A CN 202010702784 A CN202010702784 A CN 202010702784A CN 111964916 A CN111964916 A CN 111964916A
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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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Abstract
The invention discloses a test method for realizing a real vehicle rotary drum rack measurement project by using a power assembly rack, which specifically comprises the following steps: s1, firstly, transferring the whole automobile to a power assembly rack through external transfer equipment, and placing each wheel of the automobile between two roll shafts on an independent rotatable platform. The test method for realizing the real vehicle rotary drum rack measurement project by using the power assembly rack can control the running environment of the power assembly quickly and accurately through the power assembly rack, perfectly replace and realize that the whole vehicle test of the rotary drum test rack cannot be accelerated or decelerated and turned, and also can quickly simulate the reaction speed of other vehicles to the test vehicle and the vehicle body attitude in the running process, improve the state of the simulation vehicle in the road form and provide more excellent test service for the development of the vehicle and the automatic driving vehicle by matching with a corresponding software operating system.
Description
Technical Field
The invention relates to the technical field of automobile testing, in particular to a testing method for realizing a real automobile rotary drum rack measuring item by using a power assembly rack.
Background
Along with the development of society, people have higher and higher requirements on automobiles, the updating technology of the automobiles never stops, and in the research and development process of the automobiles, the rotary drum test bed is important indoor bench test equipment, so that the rotary drum test bed not only can detect the dynamic property of the automobiles, but also can measure the emission indexes, oil consumption and the like of multiple working conditions, a certain test basis is provided for researching the performances of the automobiles, such as the dynamic property, the economy, the comfort, the operation stability and the like, and the rotary drum test bed plays an important role in accelerating the development of the automobile industry, shortening the product development period, saving the product development cost and improving the detection precision of various performance indexes of the automobiles.
The drum test bench can accurately and quickly detect the service performance of each system and part of the automobile without damaging the structure of the whole automobile in the whole automobile test, but is limited by the structural characteristics of the device per se, and can not meet the existing market requirements, for example, when the automobile is automatically driven, the drum test bench can not perform related simulation tests by simulating the acceleration and turning operations of the automobile in the road driving process, or the deceleration and turning operations, or the reaction states of other vehicles on the road to the test automobile, and the like, and the drum test bench breaks away from the comprehensive indoor simulation requirements of the whole automobile.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a test method for realizing a real vehicle drum rack test project by using a power assembly rack, and solves the problem that the drum test rack can not perform related simulation tests such as acceleration and turning operation, deceleration and turning operation, or simulation of the reaction state of other vehicles on a road to a test vehicle and the like in the road driving process of a simulation vehicle.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the method for realizing the test items of the real vehicle rotary drum rack by using the power assembly rack specifically comprises the following steps:
s1, firstly, transferring the whole automobile to a power assembly rack through external transfer equipment, arranging each wheel of the automobile between two roll shafts on an independent rotatable platform, and adjusting the height of the independent rotatable platform through a lifting adjusting support according to the size of the automobile so that the wheel hub of the wheel can be aligned with the universal ball cage tool;
s2, connecting the wheel hub of the wheel to a dynamometer of a power assembly rack through a universal ball cage tool, supporting a roll shaft by a bearing seat, fixing the roll shaft on an independent rotatable platform, testing after the test assembly is finished, and accurately and rapidly tracking torque and rotating speed commands to simulate the torque rotating speed of the engine and the torque rotating speed of the load at the wheel end, so as to test the performance of the engine;
s3, when the test requires the vehicle body posture to change, the vehicle steering wheel is rotated, the wheel is steered, the steering motor is started at the moment, the steering motor drives the independent rotatable platform to rotate, the angle between the wheel and the dynamometer is changed, meanwhile, the steering motor synchronously steers according to the steering acceleration of the wheel, when the wheel steers, the angle between the wheel and the dynamometer is realized by the universal ball cage tool, the torque is transmitted through the universal ball cage tool, the test of acceleration or deceleration and turning operation of the whole vehicle can be realized, and the test of the reaction speed of other vehicles to the test vehicle can be rapidly simulated in the driving process.
Preferably, in step S1, four independent rotatable platforms are provided, and four wheels of the vehicle are respectively located on the four independent rotatable platforms on the powertrain rack.
Preferably, the universal ball cage tool in the step S2 is also called a constant velocity universal joint, so that power output is still available when the wheels are steered during the test.
Preferably, the hub of the wheel and the universal ball cage tool are connected through a bolt in the step S2, and the components on the powertrain rack are operated through an external control system during the test in the step S2.
The invention also discloses a testing device for realizing the real vehicle rotary drum rack measurement project by using the power assembly rack, which comprises the power assembly rack and a steering auxiliary mechanism, wherein the power assembly rack comprises a base, the two sides of the front surface and the two sides of the back surface of the top of the base are both fixedly connected with a dynamometer, the output end of the dynamometer is fixedly connected with a universal ball cage tool, the steering auxiliary mechanism comprises four groups of lifting adjusting supports, the bottoms of the lifting adjusting supports are fixedly connected with the top of the base, and the top of the lifting adjusting supports is rotatably connected with an independent rotatable platform through a rotating piece.
Preferably, the two sides of the front surface and the two sides of the back surface of the top of the independent rotatable platform are fixedly connected with bearing seats, and the front surface and the back surface of the independent rotatable platform are positioned between the two opposite sides of the bearing seats and are fixedly connected with shaft rollers.
Preferably, the bottom of the independent rotatable platform is fixedly connected with a steering motor through a connecting piece, and the top of the shaft roller is movably connected with wheels.
Preferably, one side of the wheel is in threaded connection with one end, far away from the dynamometer, of the universal ball cage tool through a bolt.
(III) advantageous effects
The invention provides a test method for realizing a real vehicle rotary drum rack measurement project by using a power assembly rack. Compared with the prior art, the method has the following beneficial effects:
(1) the test method for realizing the real vehicle rotary drum rack measurement project by using the power assembly rack comprises the steps of setting the power assembly rack and a steering auxiliary mechanism, wherein the power assembly rack can quickly and accurately control the running environment where a power assembly is located, perfect replacement is realized, and the whole vehicle test of the rotary drum test rack cannot be accelerated or decelerated and turned, and the running process can be quickly simulated.
(2) According to the test method for realizing the real vehicle rotary drum rack measurement project by using the power assembly rack, the dynamometer is fixedly connected to the two sides of the front surface and the two sides of the back surface of the top of the base, the torque and rotating speed control characteristics of the dynamometer are good, torque and rotating speed commands can be accurately and rapidly tracked, and the engine torque rotating speed and the wheel end load torque rotating speed are simulated, so that the test accuracy is improved.
(3) This use power assembly rack to realize test method of real car rotary drum rack measurement item, including four groups lift adjustment support through turning to complementary unit, the bottom of lift adjustment support and the top fixed connection of base, the top of lift adjustment support is rotated through rotating the piece and is connected with independent rotatable platform, the positive both sides in independent rotatable platform top and the equal fixedly connected with bearing frame in both sides at the back, the front and the back of independent rotatable platform just are located the equal fixedly connected with beam barrel between the relative one side of two bearing frames, connecting piece fixedly connected with steering motor is passed through to the bottom of independent rotatable platform, through the setting that turns to complementary unit, make under the prerequisite of not disassembling the body car, can accelerate or slow down the test of turning the operation to whole car, the test is simple more convenient, the efficiency of test has been improved.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a perspective view of the powertrain cradle and steering assist mechanism configuration of the present invention;
FIG. 3 is a front view of the structure of the present invention;
FIG. 4 is a front view of the powertrain cradle and steering assist mechanism configuration of the present invention;
FIG. 5 is a side view of the steering assist mechanism structure of the present invention;
FIG. 6 is a top view of a structure of the present invention;
FIG. 7 is a top view of the powertrain cradle and steering assist mechanism configuration of the present invention;
fig. 8 is a schematic view of the wheel turning structure of the present invention.
In the figure, 1 a power assembly rack, 11 bases, 12 dynamometers, 13 universal ball cage tools, 2 steering auxiliary mechanisms, 21 lifting adjusting supports, 22 independent rotatable platforms, 23 bearing seats, 24 shaft rollers, 25 steering motors and 3 wheels.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 8, an embodiment of the present invention provides a technical solution: the method for realizing the test items of the real vehicle rotary drum rack by using the power assembly rack specifically comprises the following steps:
s1, firstly, transferring the whole automobile to a power assembly rack through external transfer equipment, arranging each wheel of the automobile between two roll shafts on an independent rotatable platform, and adjusting the height of the independent rotatable platform through a lifting adjusting support according to the size of the automobile so that the wheel hub of the wheel can be aligned with the universal ball cage tool;
s2, connecting the wheel hub of the wheel to a dynamometer of a power assembly rack through a universal ball cage tool, supporting a roll shaft by a bearing seat, fixing the roll shaft on an independent rotatable platform, testing after the test assembly is finished, and accurately and rapidly tracking torque and rotating speed commands to simulate the torque rotating speed of the engine and the torque rotating speed of the load at the wheel end, so as to test the performance of the engine;
s3, when the test requires the vehicle body posture to change, the vehicle steering wheel is rotated, the wheel is steered, the steering motor is started at the moment, the steering motor drives the independent rotatable platform to rotate, the angle between the wheel and the dynamometer is changed, meanwhile, the steering motor synchronously steers according to the steering acceleration of the wheel, when the wheel steers, the angle between the wheel and the dynamometer is realized by the universal ball cage tool, the torque is transmitted through the universal ball cage tool, the test of acceleration or deceleration and turning operation of the whole vehicle can be realized, and the test of the reaction speed of other vehicles to the test vehicle can be rapidly simulated in the driving process.
In the invention, in step S1, four independent rotatable platforms are provided, and four wheels of the automobile are respectively located on the four independent rotatable platforms on the powertrain rack.
In the invention, the universal ball cage tool in the step S2 is also called a constant velocity universal joint, so that power output is still available when the wheels are steered in the test.
In the invention, the wheel hub of the wheel and the universal ball cage tool are connected through the bolt in the step S2, and the components on the power assembly rack are operated through an external control system during testing in the step S2.
The invention also discloses a testing device for realizing the real vehicle drum rack measuring project by using the power assembly rack, which comprises a power assembly rack 1 and a steering auxiliary mechanism 2, wherein the power assembly rack 1 comprises a base 11, two sides of the front surface and two sides of the back surface of the top of the base 11 are fixedly connected with a dynamometer 12, the dynamometer 12 is controlled by an external control system, the model of the dynamometer 12 is DW50WKB, the output end of the dynamometer 12 is fixedly connected with a universal ball cage tool 13, the steering auxiliary mechanism 2 comprises four groups of lifting adjusting brackets 21, the lifting adjusting brackets 21 are controlled by the external control system, the height of an independent rotatable platform 22 can be adjusted by the lifting adjusting brackets 21 according to the size of a vehicle, so that the wheel hub of a wheel 3 can be aligned with the universal ball cage tool 13, the bottom of the lifting adjusting brackets 21 is fixedly connected with the top of the base 11, the top of lift adjustment support 21 rotates through rotating the piece and is connected with independent rotatable platform 22, the bottom of independent rotatable platform 22 turns to motor 25 through connecting piece fixedly connected with, turn to motor 25 and control through external control system, the model that turns to motor 25 is Y90S-1, the top swing joint of beam barrel 24 has wheel 3, the one end threaded connection who keeps away from dynamometer 12 is passed through bolt and universal ball cage frock 13 in one side of wheel 3, the equal fixedly connected with bearing frame 23 in the positive both sides in independent rotatable platform 22 top and the both sides at the back, the front and the back of independent rotatable platform 22 just are located equal fixedly connected with beam barrel 24 between the relative one side of two bearing frames 23, beam barrel 24 fixes between bearing frame 23.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The test method for realizing the real vehicle rotary drum rack measurement project by using the power assembly rack is characterized by comprising the following steps of: the method specifically comprises the following steps:
s1, firstly, transferring the whole automobile to a power assembly rack through external transfer equipment, arranging each wheel of the automobile between two roll shafts on an independent rotatable platform, and adjusting the height of the independent rotatable platform through a lifting adjusting support according to the size of the automobile so that the wheel hub of the wheel can be aligned with the universal ball cage tool;
s2, connecting the wheel hub of the wheel to a dynamometer of a power assembly rack through a universal ball cage tool, supporting a roll shaft by a bearing seat, fixing the roll shaft on an independent rotatable platform, testing after the test assembly is finished, and accurately and rapidly tracking torque and rotating speed commands to simulate the torque rotating speed of the engine and the torque rotating speed of the load at the wheel end, so as to test the performance of the engine;
s3, when the test requires the vehicle body posture to change, the vehicle steering wheel is rotated, the wheel is steered, the steering motor is started at the moment, the steering motor drives the independent rotatable platform to rotate, the angle between the wheel and the dynamometer is changed, meanwhile, the steering motor synchronously steers according to the steering acceleration of the wheel, when the wheel steers, the angle between the wheel and the dynamometer is realized by the universal ball cage tool, the torque is transmitted through the universal ball cage tool, the test of acceleration or deceleration and turning operation of the whole vehicle can be realized, and the test of the reaction speed of other vehicles to the test vehicle can be rapidly simulated in the driving process.
2. The method for testing the real vehicle drum rack measurement items by using the powertrain rack as claimed in claim 1, wherein: in the step S1, four independent rotatable platforms are provided, and four wheels of the vehicle are respectively located on the four independent rotatable platforms on the powertrain rack.
3. The method for testing the real vehicle drum rack measurement items by using the powertrain rack as claimed in claim 1, wherein: the universal ball cage tool in the step S2 is also called a constant velocity universal joint, so that power output is still available when the wheels are steered during the test.
4. The method for testing the real vehicle drum rack measurement items by using the powertrain rack as claimed in claim 1, wherein: and in the step S2, the wheel hub of the wheel is connected with the universal ball cage tool through a bolt, and the components on the power assembly rack in the step S2 are operated through an external control system during testing.
5. The test device for realizing the real vehicle drum rack measurement items by using the powertrain rack as claimed in any one of claims 1 to 4, comprising the powertrain rack and the steering assist mechanism, wherein: the power assembly rack comprises a base, the positive both sides in base top and the equal fixedly connected with dynamometer machine in both sides at the back, and the output end fixedly connected with universal ball cage frock of dynamometer machine, turn to complementary unit and include four group's lift adjustment support, the bottom of lift adjustment support and the top fixed connection of base, the top of lift adjustment support is rotated through rotating and is connected with independent rotatable platform.
6. The test device for realizing the measurement items of the real vehicle drum rack by using the powertrain rack as claimed in any one of claims 1 to 4, wherein: the two sides of the front surface and the two sides of the back surface of the top of the independent rotatable platform are fixedly connected with bearing seats, and the front surface and the back surface of the independent rotatable platform are fixedly connected with shaft rollers between the two opposite sides of the bearing seats.
7. The test device for realizing the measurement items of the real vehicle drum rack by using the powertrain rack as claimed in any one of claims 1 to 4, wherein: the bottom of the independent rotatable platform is fixedly connected with a steering motor through a connecting piece, and the top of the shaft roller is movably connected with wheels.
8. The test device for realizing the measurement items of the real vehicle drum rack by using the powertrain rack as claimed in any one of claims 1 to 4, wherein: one side of the wheel is in threaded connection with one end, far away from the dynamometer, of the universal ball cage tool through a bolt.
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| CN202010702784.8A CN111964916A (en) | 2020-07-20 | 2020-07-20 | Method for testing real vehicle rotary drum rack measurement items by using power assembly rack |
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| CN202010702784.8A CN111964916A (en) | 2020-07-20 | 2020-07-20 | Method for testing real vehicle rotary drum rack measurement items by using power assembly rack |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504703A (en) * | 2020-11-27 | 2021-03-16 | 奇瑞商用车（安徽）有限公司 | Macpherson suspension all-working-condition rack verification device |
| CN113029597A (en) * | 2021-04-06 | 2021-06-25 | 北京理工大学 | Unmanned vehicle full-line control chassis test system |
| CN113405708A (en) * | 2021-06-28 | 2021-09-17 | 北京理工大学 | Annular orthogonal torque chassis dynamometer for simulating automobile steering working condition |
| CN113405709A (en) * | 2021-06-28 | 2021-09-17 | 北京理工大学 | Spherical rotor chassis dynamometer for automobile steering condition simulation |
| CN113532709A (en) * | 2021-06-28 | 2021-10-22 | 北京理工大学 | Permanent magnet spherical rotor chassis dynamometer for automobile steering condition simulation |
| CN113567859A (en) * | 2021-08-30 | 2021-10-29 | 重庆理工清研凌创测控科技有限公司 | New energy automobile complete machine power testing method |
| CN113589185A (en) * | 2021-08-30 | 2021-11-02 | 重庆理工清研凌创测控科技有限公司 | Complete machine power test system for new energy automobile |
| CN114778128A (en) * | 2022-03-31 | 2022-07-22 | 东风汽车集团股份有限公司 | All-condition dynamic simulation test bed for detecting abnormal sound of whole vehicle and test method thereof |
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| CN113029597A (en) * | 2021-04-06 | 2021-06-25 | 北京理工大学 | Unmanned vehicle full-line control chassis test system |
| CN113405708A (en) * | 2021-06-28 | 2021-09-17 | 北京理工大学 | Annular orthogonal torque chassis dynamometer for simulating automobile steering working condition |
| CN113405709A (en) * | 2021-06-28 | 2021-09-17 | 北京理工大学 | Spherical rotor chassis dynamometer for automobile steering condition simulation |
| CN113532709A (en) * | 2021-06-28 | 2021-10-22 | 北京理工大学 | Permanent magnet spherical rotor chassis dynamometer for automobile steering condition simulation |
| CN113532709B (en) * | 2021-06-28 | 2022-04-05 | 北京理工大学 | Permanent magnet spherical rotor chassis dynamometer for automobile steering condition simulation |
| CN113567859A (en) * | 2021-08-30 | 2021-10-29 | 重庆理工清研凌创测控科技有限公司 | New energy automobile complete machine power testing method |
| CN113589185A (en) * | 2021-08-30 | 2021-11-02 | 重庆理工清研凌创测控科技有限公司 | Complete machine power test system for new energy automobile |
| CN113589185B (en) * | 2021-08-30 | 2022-07-08 | 重庆理工清研凌创测控科技有限公司 | Complete machine power test system for new energy automobile |
| CN113567859B (en) * | 2021-08-30 | 2022-07-29 | 重庆理工清研凌创测控科技有限公司 | New energy automobile complete machine power testing method |
| CN114778128A (en) * | 2022-03-31 | 2022-07-22 | 东风汽车集团股份有限公司 | All-condition dynamic simulation test bed for detecting abnormal sound of whole vehicle and test method thereof |
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Application publication date: 20201120 |