CN201594043U - Performance testing platform of electric power steering system - Google Patents

Performance testing platform of electric power steering system Download PDF

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Publication number
CN201594043U
CN201594043U CN200920318468XU CN200920318468U CN201594043U CN 201594043 U CN201594043 U CN 201594043U CN 200920318468X U CN200920318468X U CN 200920318468XU CN 200920318468 U CN200920318468 U CN 200920318468U CN 201594043 U CN201594043 U CN 201594043U
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CN
China
Prior art keywords
steering
control unit
electronic control
gear
signal generator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN200920318468XU
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Chinese (zh)
Inventor
张辉
刘金虹
张玉治
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xian University of Technology
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Xian University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xian University of Technology filed Critical Xian University of Technology
Priority to CN200920318468XU priority Critical patent/CN201594043U/en
Application granted granted Critical
Publication of CN201594043U publication Critical patent/CN201594043U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a performance testing platform of an electric power steering system; a steering part comprises a fixed base which is provided with a steering gear fixed by a steering rack; two ends of the steering rack are connected with spring dampers; the steering gear is connected with one end of a steering shaft, and the other end thereof is connected with a steering wheel; the middle part of the steering shaft is fixed at the two ends of the fixed base by a fixed bracket; a rotary angle sensor, a speed reducing mechanism, a torque sensor and a universal joint are sequentially arranged between the steering wheel and the steering gear; a control part comprises an electronic control unit, an input end of which is respectively connected with a storage battery, the torque sensor, the rotary angle sensor and an analog signal generator; an output end of the electronic control unit is respectively connected with the speed reducing mechanism and an oscilloscope; and the analog signal generator is also connected with the oscilloscope. The performance testing platform of the electric power steering system has simple structure, low manufacturing cost, reliable use and energy conservation.

Description

Electric boosting steering system performance test platform
Technical field
The utility model belongs to the motor turning technical field, is specifically related to a kind of electric boosting steering system performance test platform.
Background technology
At present, electric boosting steering system is widely used in automobile industry, and its correlation test platform product also emerges in an endless stream.Testing table has irreplaceable effect in the exploitation of electric boosting steering system and test.For the exploitation steering, the bench test link that is absolutely necessary has only by sufficient test bed testing, and steering just can be carried out real train test, can save the development time on the one hand, can guarantee its reliability on the other hand; For the finished product steering, testing table can be finished the test of parameters accurately and quickly, saves lot of manpower and material resources.
The steering drag simulation mechanism is an ingredient very important in the testing table, and it is mainly used in the actual resistance of simulating vehicle when travelling, and improves the authenticity and the accuracy of bench test.But existing product or control accuracy are not high, can not satisfy testing requirements, and such as utilizing brake block to produce resistance, when big torque, brake block skids easily, influences measuring accuracy; Cost is higher, such as utilizing magnetic powder brake to produce resistance; Need to increase miscellaneous part, control is complicated, such as producing the moment of resistance with cylinder or hydraulic cylinder.And have a lot of insurmountable drawbacks, such as leakage problem contaminated environment etc.
Summary of the invention
The purpose of this utility model provides a kind of electric boosting steering system performance test platform, adopt the steering drag of flexible member simulation steering column, can gather materials on the spot, reduce complexity, the cost squeeze of system to the full extent, and can fundamentally solve problems such as hydraulic fluid leak.
The technical scheme that the utility model adopted is, a kind of electric boosting steering system performance test platform, comprise knuckle section and control section, knuckle section comprises firm banking, firm banking is provided with by the fixing steering gear of steering rack, the two ends of steering rack are connected with spring-damper respectively, one end of steering gear and steering axle is connected, the other end of steering axle is connected with steering wheel, the middle part of steering axle is fixed on the two ends of firm banking by fixed support, on steering axle, be disposed with rotary angle transmitter between steering wheel and the steering gear, reducing gear, torque sensor and universal joint, control section comprises electronic control unit, the input end of electronic control unit respectively and accumulator, torque sensor, rotary angle transmitter and analog signal generator are connected, the output terminal of electronic control unit passes through motor successively, clutch coupling is connected with reducing gear, the output terminal of electronic control unit also is connected with oscillograph, and analog signal generator also is connected with oscillograph.
Characteristics of the present utility model are that also the other end of spring-damper wherein is provided with the replacing spring assembly.
The beneficial effects of the utility model are:
(1) problems such as cost height, hydraulic fluid leak have been overcome;
(2) reduced the complexity of system;
(3) help to explore the power-assisted rule of motor, the operational effect of check power-assisted control program is analyzed the influence of EPS to the motor turning portability;
(4) reduced the danger that the road examination is carried out in direct entrucking.
Description of drawings
Fig. 1 is the structural representation of the utility model electric boosting steering system performance test platform.
Among the figure, 1. steering wheel, 2. rotary angle transmitter, 3. steering axle, 4. fixed support, 5. reducing gear, 6. universal joint, 7. motor, 8. clutch coupling, 9. torque sensor, 10. analog signal generator, 11. electronic control units, 12. accumulators, 13. oscillograph, 14. change spring assembly, 15. spring-dampers, 16. steering gear, 17. steering racks, 18. firm bankings.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
The structure of the utility model electric boosting steering system performance test platform, as shown in Figure 1, comprise knuckle section and control section, knuckle section comprises firm banking 18, firm banking 18 is provided with the steering gear of fixing by steering rack 17 16, the two ends of steering rack 17 are connected with spring-damper 15 respectively, the other end of spring-damper 15 is provided with changes spring assembly 14, one end of steering gear 16 and steering axle 3 is connected, the other end of steering axle 3 is connected with steering wheel 1, the middle part of steering axle 3 is fixed on the two ends of firm banking 18 by fixed support 4, on steering axle 3, be disposed with rotary angle transmitter 2 between steering wheel 1 and the steering gear 16, reducing gear 5, torque sensor 9 and the universal joint 6 that makes up with transmission shaft, control section comprises electronic control unit 11, the input end of electronic control unit 11 respectively with torque sensor 9, rotary angle transmitter 2 and analog signal generator 10 are connected, the output terminal of electronic control unit 11 is successively by motor 7, clutch coupling 8 is connected with reducing gear 5, the output terminal of electronic control unit 11 also is connected with oscillograph 13, analog signal generator 10 also is connected with oscillograph 13, also is connected with the accumulator 12 that is used to power on the electronic control unit 11.
The course of work of the utility model electric boosting steering system performance test platform is: when handling steering wheel 1, be installed in the dtc signal that torque sensor 9 on the steering axle 3 constantly detects steering axle 3, dtc signal is passed to electronic control unit 11, rotary angle transmitter 2 constantly detects the corner value of steering axle 3, and the corner value is passed to electronic control unit 11.Simultaneously, digital signal generator 10 produces vehicle speed signal, and passes to electronic control unit 11, is used for electronic control unit 11 decisions and adopts which kind of power-assisted algorithm.When the dtc signal that is input to electronic control unit 11 surpasses the threshold value of beginning power-assisted (according to the real train test data, EPS just began to provide power-assisted when input torque surpassed 1Nm), electronic control unit 11 sends instructions to motor 7 and makes it export corresponding power-assisted.When the dtc signal that is input to electronic control unit 11 was lower than the threshold value that needs power-assisted, electronic control unit 11 sent instruction for simultaneously motor 7 and clutch coupling 8, made clutch coupling 8 actions to disconnect servomechanism, and the driver obtains good road feel.By changing the characteristic that springs in the spring-damper 15 change spring-damper 15, simulate under the situation of different road surfaces steering drag to tire, for providing, the performance test of system closes to actual vehicle simulated environment.After a steering procedure finished, oscillograph 13 was gathered the power-assisted electric current in real time from motor side 7, contrasts by the vehicle speed signal with input, verified the effect of the power-assisted control of this experimental provision.
On this test platform, can carry out following test:
(1) to carrying out the sinusoidal input test of steering wheel angle, record hand-wheel torque-electric current assist characteristic curve under the different speed of a motor vehicle.
(2), different steering wheel angles position let go back just test under the different speed of a motor vehicle.
The utility model electric boosting steering system performance test platform, adopt the steering drag of flexible member simulation steering column, can gather materials on the spot, reduce complexity, the cost squeeze of system to the full extent and can fundamentally solve problems such as hydraulic fluid leak, it is simple in structure, cheap, use is reliable, and energy-conservation.

Claims (2)

1. electric boosting steering system performance test platform, it is characterized in that, comprise knuckle section and control section, described knuckle section comprises firm banking (18), firm banking (18) is provided with by the fixing steering gear (16) of steering rack (17), the two ends of steering rack (17) are connected with spring-damper (15) respectively, described steering gear (16) is connected with an end of steering axle (3), the other end of steering axle (3) is connected with steering wheel (1), the middle part of steering axle (3) is fixed on the two ends of firm banking (18) by fixed support (4), on steering axle (3), be disposed with rotary angle transmitter (2) between steering wheel (1) and the steering gear (16), reducing gear (5), torque sensor (9) and universal joint (6), described control section comprises electronic control unit (11), the input end of electronic control unit (11) respectively and accumulator (12), torque sensor (9), rotary angle transmitter (2) and analog signal generator (10) are connected, the output terminal of electronic control unit (11) is successively by motor (7), clutch coupling (8) is connected with reducing gear (5), the output terminal of electronic control unit (11) also is connected with oscillograph (13), and described analog signal generator (10) also is connected with oscillograph (13).
2. electric boosting steering system performance test platform according to claim 1 is characterized in that, the other end of described spring-damper (15) is provided with changes spring assembly (14).
CN200920318468XU 2009-12-25 2009-12-25 Performance testing platform of electric power steering system Expired - Fee Related CN201594043U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200920318468XU CN201594043U (en) 2009-12-25 2009-12-25 Performance testing platform of electric power steering system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200920318468XU CN201594043U (en) 2009-12-25 2009-12-25 Performance testing platform of electric power steering system

Publications (1)

Publication Number Publication Date
CN201594043U true CN201594043U (en) 2010-09-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN200920318468XU Expired - Fee Related CN201594043U (en) 2009-12-25 2009-12-25 Performance testing platform of electric power steering system

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Country Link
CN (1) CN201594043U (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101750217B (en) * 2010-01-08 2011-06-29 山东理工大学 Steering test stand simulating multiple work conditions of automobile
CN102128722A (en) * 2010-12-28 2011-07-20 奇瑞汽车股份有限公司 System and method for testing steering system of automobile
CN102661868A (en) * 2012-04-18 2012-09-12 清华大学 Measuring method of rotating inertia and damping parameter of automobile steering control mechanism
CN102661869A (en) * 2012-04-18 2012-09-12 清华大学 Method for measuring rotational inertia and damping parameter of steering control mechanism of automobile
CN103293009A (en) * 2013-06-04 2013-09-11 重庆大学 Device and method for testing electronic power steering system of automobile
CN106872188A (en) * 2016-12-30 2017-06-20 合肥工业大学 A kind of In-wheel motor driving electric vehicle rotary is to experimental bench
CN108827663A (en) * 2018-08-03 2018-11-16 合肥百川自动化科技有限公司 A kind of steering shaft detection device for combination property
CN110018001A (en) * 2019-04-24 2019-07-16 广州小鹏汽车科技有限公司 A kind of the steering system assembly experimental rig and method of simulated roadway

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101750217B (en) * 2010-01-08 2011-06-29 山东理工大学 Steering test stand simulating multiple work conditions of automobile
CN102128722A (en) * 2010-12-28 2011-07-20 奇瑞汽车股份有限公司 System and method for testing steering system of automobile
CN102661868A (en) * 2012-04-18 2012-09-12 清华大学 Measuring method of rotating inertia and damping parameter of automobile steering control mechanism
CN102661869A (en) * 2012-04-18 2012-09-12 清华大学 Method for measuring rotational inertia and damping parameter of steering control mechanism of automobile
CN102661869B (en) * 2012-04-18 2013-06-12 清华大学 Method for measuring rotational inertia and damping parameter of steering control mechanism of automobile
CN102661868B (en) * 2012-04-18 2013-08-07 清华大学 Measuring method of rotating inertia and damping parameter of automobile steering control mechanism
CN103293009A (en) * 2013-06-04 2013-09-11 重庆大学 Device and method for testing electronic power steering system of automobile
CN103293009B (en) * 2013-06-04 2015-04-15 重庆大学 Device and method for testing electronic power steering system of automobile
CN106872188A (en) * 2016-12-30 2017-06-20 合肥工业大学 A kind of In-wheel motor driving electric vehicle rotary is to experimental bench
CN108827663A (en) * 2018-08-03 2018-11-16 合肥百川自动化科技有限公司 A kind of steering shaft detection device for combination property
CN110018001A (en) * 2019-04-24 2019-07-16 广州小鹏汽车科技有限公司 A kind of the steering system assembly experimental rig and method of simulated roadway

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100929

Termination date: 20121225