CN102200488B - Experimental device and method for electric power steering test of automobile - Google Patents
Experimental device and method for electric power steering test of automobile Download PDFInfo
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- CN102200488B CN102200488B CN2011100739077A CN201110073907A CN102200488B CN 102200488 B CN102200488 B CN 102200488B CN 2011100739077 A CN2011100739077 A CN 2011100739077A CN 201110073907 A CN201110073907 A CN 201110073907A CN 102200488 B CN102200488 B CN 102200488B
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Abstract
The invention discloses an experimental device for an electric power steering (EPS) test of an automobile, comprising a power device, a torque loading device and a wheel positioning instrument; an EPS device to be detected is installed on a steering column of an automobile steering system; the power device is installed on a steering joint of a steering transmission mechanism of the automobile steering system and used for applying upward and downward road excitation to the steering transmission mechanism; the torque loading device is installed at the bottom of the steering wheel to apply a friction torque and a lateral torque to the steering wheel; and the wheel positioning instrument is absorbed at a hub end part of the detected steering wheel. Meanwhile, the invention further discloses an experimental method for an electric power steering (EPS) test of an automobile. The steering angle and the torque of the automobile steering wheel are output through the EPS device; the performances of the automobile steering and the EPS device are researched through a relationship between a measured parameter of the wheel positioning instrument and an output parameter of the EPS device. The device and method disclosed by the invention have the advantages of low testing cost, good testing effect, convenience for maintenance and the like.
Description
Technical field
The present invention relates to a kind of automobile experiment devices and methods therefor, relate in particular to a kind of automobile electric power-assisted steering experimental apparatus for testing and method thereof.
Background technology
Automobile steering system is to guarantee that automobile turns to according to driver's will to go to keep stable vitals that the quality of its performance directly has influence on running safety and control stability.Therefore the performance of automotive steering system test is for the confirming of steering gear design parameter, steering mechanism's determining dimensions with guarantee that the reliability of steering gear performance all has crucial meaning.In addition, electric power steering has solved ease of steering and contradiction road feel between of automobile when turning to, and has further guaranteed security and the stationarity of Vehicular turn.Existing test unit product only is that the unit test of hydraulic power steering device and electric booster steering device does not have the general steering gear experimental provision of three to the steering gear of mechanical gear tooth bar, also is not directed against the experimental provision of steering.Present existing steering assembly test unit can be tested for the triaxiality to steering gear; The one-way shaft that adopt to loading more; Its test can not be simulated the actual condition of steering gear fully; Can not reflect the system's performance that is by turning to of forming of parts such as steering gear and steering knuckle, can not reflect to turn to the performance that ties up under suspension bob and the load of going that institute's test parameter error is big or bigger with the practical work process difference; Tested object is single and separate with the steering performance, and test item is also less.In order to address the above problem, people such as the Li Zhili of Chongqing University of Technology have invented five motor turning experimental provisions, have solved the problems referred to above basically.But this device exists shortcomings such as complex structure, manufacturing cost height and repair difficult, is difficult to be applied to the scientific research test of reality.
Summary of the invention
To weak point of the prior art, the invention provides a kind of simple in structure, the automobile electric power-assisted steering experimental apparatus for testing of low cost of manufacture.This device is used for performance test and the evaluation of simulated automotive steering under entrucking and transport condition, is used for the teaching and the theoretical research of automotive steering, is used for the performance design experiment and the state analysis of motor turning based part.
Simultaneously, the present invention also provides a kind of test simple, the automobile electric power-assisted steering test experiments method that cost is lower.
Automobile electric power-assisted steering experimental apparatus for testing provided by the invention comprises propulsion system, moment charger and wheel alignment meter;
EPS device to be detected is installed on the steering column of automobile steering system; Said propulsion system are arranged on the steering knuckle of steering gear of automobile steering system, and steering gear is applied road excitation up or down; Said moment charger is arranged on the bottom of steered wheel, and steered wheel is applied moment of friction and side direction moment; Said wheel alignment meter is adsorbed on the hub end of tested steered wheel.
Further, said propulsion system are cylinder or hydraulic cylinder, and the piston rod of cylinder or hydraulic cylinder is connected with steering gear.
Automobile electric power-assisted steering test experiments method provided by the invention has adopted above-mentioned automobile electric power-assisted steering experimental apparatus for testing in the method, and this method comprises the steps:
(1), rotate the bearing circle of automobile steering system, give corner of bearing circle and torque, drive the steering column motion;
(2), the torque of bearing circle and the rotating speed of corner and steered wheel are directly inputted in the EPS device that is installed on the steering column;
(3), steering column is delivered to the power of bearing circle on the rack and pinion steering gear through steering control mechanism, rack and pinion steering gear is delivered on the steered wheel through steering gear;
(4), steered wheel when turning to, propulsion system offer the displacement of the suspension bob that simulated roadway injustice of vibroshock of automobile steering system causes; The road surface applied to steered wheel when the moment charger offered simulated automotive of steered wheel and turns to moment of friction and side direction moment;
(5), utilize the wheel alignment meter of the hub end be adsorbed on tested steered wheel to measure the corner and the steering moment of steered wheel, and compare the performance of analysis EPS device with corner and the steering moment of EPS measurement device steered wheel.
Compared with prior art, automobile electric power-assisted steering experimental apparatus for testing of the present invention and method thereof have following advantage:
1, the present invention is through the corner and the torque of EPS device output motor turning wheel, and the measurement parameter through wheel alignment meter and the relation of EPS output parameter are studied the performance of motor turning and EPS device.This device and method has advantages such as testing cost is low, measurement effect good, easy to maintenance.
2, this device can be used for performance test and the evaluation of simulated automotive steering under entrucking and transport condition, is used for the teaching and the theoretical research of automotive steering, is used for the performance design experiment and the state analysis of motor turning based part.
3, simulated automotive goes road conditions axially and vertical loading, and it is truer to load test, for checking, improvement and the research and development of the performance evaluation of performance of automotive steering system test and motor turning based part and product provide comprehensively, the reliable detection data.
Description of drawings
Fig. 1 is the structural representation of automobile electric power-assisted steering experimental apparatus for testing of the present invention;
Fig. 2 is the parameter block diagram of input and output EPS device.
In the accompanying drawing, 1-EPS device; 2-propulsion system; 3-moment charger; 4-wheel alignment meter; 5-steering column; 6-steering gear; 7-steered wheel; 8-bearing circle; 9-catanator; 10-rack and pinion steering gear; 11-vibroshock.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done explanation in further detail.
Fig. 1 is the structural representation of automobile electric power-assisted steering experimental apparatus for testing of the present invention, and Fig. 2 is for the parameter block diagram of input and output EPS device, and is as shown in the figure.The automobile electric power-assisted steering experimental apparatus for testing comprises propulsion system 2, moment charger 3 and wheel alignment meter 4.EPS device 1 to be detected is installed on the steering column 5 of automobile steering system; Propulsion system 2 are arranged on the steering knuckle of steering gear 6 of automobile steering system, and steering gear 6 is applied road excitation (being the simulated suspension operating mode) up or down; Moment charger 3 is arranged on the bottom of steered wheel 7, and steered wheel 7 is applied moment of friction and side direction moment; Wheel alignment meter 4 is adsorbed on the hub end of tested steered wheel 7.
In the present embodiment, propulsion system 3 are cylinder, and the piston rod of cylinder is connected with steering gear 6.Certainly, propulsion system 3 also can adopt hydraulic cylinder or other actuating unit.
Automobile electric power-assisted steering test experiments method, this method comprises the steps:
(1), rotate the bearing circle 8 of automobile steering system, give 8 one corners of bearing circle and torque, drive steering column 5 motions.
(2), the torque of bearing circle 8 and the rotating speed of corner and steered wheel 7 are directly inputted in the EPS device 1 that is installed on the steering column 5.
(3), steering column is delivered to the power of bearing circle 8 on the rack and pinion steering gear 10 through steering control mechanism 9, rack and pinion steering gear 10 is delivered on the steered wheel 7 through steering gear 6.
(4), steered wheel 7 when turning to, the vibroshock 11 simulated suspension mechanisms of automobile steering system, propulsion system 2 offer the displacement of the suspension bob that 11 1 simulated roadway injustice of vibroshock of automobile steering system cause; Moment of friction and the side direction moment that steered wheel 7 applies was given on the road surface when moment charger 3 offered 7 one simulated automotives of steered wheel and turns to.
(5), utilize the wheel alignment meter 4 of the hub end be adsorbed on tested steered wheel 7 to measure the corner and the steering moment of steered wheels 7, and compare the performance of analysis EPS device with corner and the steering moment of EPS measurement device steered wheel 7.
The present invention utilizes the selection of EPS experimental provision input parameter and the positional parameter of tire.Input parameter is the speed of a motor vehicle of automobile, the corner and the torque of bearing circle; EPS device inner parameter is assist torque, steering angle and electric current, voltage; The positional parameter of deflecting roller adopts wheel alignment meter to measure, and propulsion system drive steered wheel and move up and down simulated automotive tire going on the road surface; Moment of friction between wheel moment charger simulated roadway and the steered wheel, whole diversion experiments system adopts triple axle.The EPS device is output as the corner and the torque of motor turning wheel, and the measurement parameter through wheel alignment meter and the relation of EPS device output parameter are studied the performance of motor turning and EPS device.This device and method has advantages such as testing cost is low, measurement effect good, easy to maintenance.
Explanation is at last; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although with reference to preferred embodiment the present invention is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention; And not breaking away from the aim and the scope of technical scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (3)
1. an automobile electric power-assisted steering experimental apparatus for testing is characterized in that: comprise propulsion system (2), moment charger (3) and wheel alignment meter (4);
EPS device (1) to be detected is installed on the steering column (5) of automobile steering system; Said propulsion system (2) are arranged on the steering knuckle of steering gear (6) of automobile steering system, and steering gear (6) is applied road excitation up or down; Said moment charger (3) is arranged on the bottom of steered wheel (7), and steered wheel (7) is applied moment of friction and side direction moment; Said wheel alignment meter (4) is adsorbed on the hub end of tested steered wheel (7).
2. automobile electric power-assisted steering experimental apparatus for testing according to claim 1 is characterized in that: said propulsion system (2) are cylinder or hydraulic cylinder, and the piston rod of cylinder or hydraulic cylinder is connected with steering gear (6).
3. an automobile electric power-assisted steering test experiments method is characterized in that, has adopted the described automobile electric power-assisted steering experimental apparatus for testing of claim 1 in the method, and this method comprises the steps:
(1), rotate the bearing circle (8) of automobile steering system, give bearing circle (8) corners and torques, drive steering column (5) motion;
(2), the torque of bearing circle (8) and the rotating speed of corner and steered wheel (7) are directly inputted in the EPS device (1) that is installed on the steering column (5);
(3), steering column is delivered to the power of bearing circle (8) on the rack and pinion steering gear (10) through steering control mechanism (9), rack and pinion steering gear (10) is delivered on the steered wheel (7) through steering gear (6);
(4), steered wheel (7) when turning to, propulsion system (2) offer the displacement of the suspension bob that (11) simulated roadway injustice of vibroshock of automobile steering system cause; Moment of friction and the side direction moment that steered wheel (7) applies was given on the road surface when moment charger (3) offered (7) simulated automotives of steered wheel and turns to;
(5), utilize the corner and the steering moment of wheel alignment meter (4) the measurement steered wheel (7) of the hub end that is adsorbed on tested steered wheel (7); And compare with the corner and the steering moment of the steered wheel (7) of EPS measurement device, analyze the performance of EPS device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100739077A CN102200488B (en) | 2011-03-25 | 2011-03-25 | Experimental device and method for electric power steering test of automobile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100739077A CN102200488B (en) | 2011-03-25 | 2011-03-25 | Experimental device and method for electric power steering test of automobile |
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| CN102200488A CN102200488A (en) | 2011-09-28 |
| CN102200488B true CN102200488B (en) | 2012-06-27 |
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| CN2011100739077A Expired - Fee Related CN102200488B (en) | 2011-03-25 | 2011-03-25 | Experimental device and method for electric power steering test of automobile |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940623A (en) * | 2014-04-14 | 2014-07-23 | 同济大学 | Loading device simulating dynamic steering resistance moment of automobile |
| CN106679536A (en) * | 2017-03-03 | 2017-05-17 | 江苏恒源精密机械制造有限公司 | Gauge of steering knuckle |
| US10807633B2 (en) | 2017-05-12 | 2020-10-20 | Ka Group Ag | Electric power steering assembly and system with anti-rotation coupler |
| CN110168332B (en) * | 2017-06-08 | 2020-06-30 | 株式会社东阳特克尼卡 | Load device of dynamometer |
| CN107246972B (en) * | 2017-06-22 | 2020-06-19 | 北京长城华冠汽车技术开发有限公司 | Method and system for testing steering parameters of whole vehicle |
| CN107621373B (en) * | 2017-08-03 | 2019-05-07 | 广州汽车集团股份有限公司 | A kind of test device of automobile steering system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4934473A (en) * | 1988-02-29 | 1990-06-19 | Aisin Seiki Kabushiki Kaisha | Motor driven power steering apparatus |
| CN1595091A (en) * | 2004-06-29 | 2005-03-16 | 华中科技大学 | Automobile electric power-assisted steering system simulation testing arrangement |
| CN101158622A (en) * | 2007-11-16 | 2008-04-09 | 江苏大学 | Vehicle electric power-assisted steering system tester |
| CN101256118A (en) * | 2007-11-16 | 2008-09-03 | 江苏大学 | Test approach for experimental investigation of vehicle electric power-assisted steering system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4264725B2 (en) * | 2003-12-09 | 2009-05-20 | 株式会社ジェイテクト | Test system for electric power steering system |
| JP2005186830A (en) * | 2003-12-26 | 2005-07-14 | Bridgestone Corp | Tire abnormality detection device |
| JP2007302050A (en) * | 2006-05-09 | 2007-11-22 | Nsk Ltd | Electric power steering device |
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2011
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4934473A (en) * | 1988-02-29 | 1990-06-19 | Aisin Seiki Kabushiki Kaisha | Motor driven power steering apparatus |
| CN1595091A (en) * | 2004-06-29 | 2005-03-16 | 华中科技大学 | Automobile electric power-assisted steering system simulation testing arrangement |
| CN101158622A (en) * | 2007-11-16 | 2008-04-09 | 江苏大学 | Vehicle electric power-assisted steering system tester |
| CN101256118A (en) * | 2007-11-16 | 2008-09-03 | 江苏大学 | Test approach for experimental investigation of vehicle electric power-assisted steering system |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2005-172528A 2005.06.30 |
| JP特开2005-186830A 2005.07.14 |
| JP特开2007-302050A 2007.11.22 |
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Granted publication date: 20120627 Termination date: 20130325 |