CN105606382B - A kind of electric servo steering system test platform and method of testing - Google Patents

A kind of electric servo steering system test platform and method of testing Download PDF

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Publication number
CN105606382B
CN105606382B CN201511030045.4A CN201511030045A CN105606382B CN 105606382 B CN105606382 B CN 105606382B CN 201511030045 A CN201511030045 A CN 201511030045A CN 105606382 B CN105606382 B CN 105606382B
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China
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test
input
loading
steering
damping
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CN201511030045.4A
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Chinese (zh)
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CN105606382A (en
Inventor
郭永丰
马鑫磊
冯业瑞
杨念
胡淼
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哈尔滨工业大学
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00Testing of vehicles
    • G01M17/007Wheeled or endless-tracked vehicles
    • G01M17/06Steering behaviour; Rolling behaviour

Abstract

A kind of electric servo steering system test platform and method of testing.Steering wheel is arranged on input shaft, and servomotor one is rotated by reductor and timing belt band driven input shaft, realizes servo loading and manual loading two ways, torque sensor and angular transducer are connected on input shaft;The output end of test specimen EPS is connected by rack and pinion drive mechanism with damping loading device;Input loading and detection means, test specimen EPS and PC control and signal processing system data double-way conduct, and by host computer to Road quality simulation, control the performance test of damping unit unit simulation and turn to feel test damping torque;Damping loading device combines realization by magnetic powder brake and servomotor, larger damping torque is exported by magnetic powder brake, the quick control of low-force square is realized using servomotor quick response and the characteristic accurately controlled, realizes that the damping torque of test platform accurately quickly controls under conditions of cost is considered.

Description

A kind of electric servo steering system test platform and method of testing
Technical field
The present invention relates to a kind of electric servo steering system test platform and method of testing, belong to automobile chassis electronics Product test technical field.
Background technology
Automobile electric booster steering system(Electronic power steering, abbreviation EPS)It is a kind of electromechanical Control system, do not need hydraulic pump compared to conventional hydraulic servo steering system, do not need fluid pressure line and hydraulic oil;Fluid pressure type helps The hydraulic pump of power steering gear needs to work always, electric booster steering device motor ability work only in the case of power steering is needed Make, save the energy.Electric boosting steering system can be realized provides power-assisted with speed, and different power-assisteds is provided according to control strategy So that it is light to drive good hand touch, riding manipulation.Electric booster steering device extensively using by people generally receiving, develop and Properties of product test is carried out to EPS in production process and the debugging in research and development of products stage, testing stand mainly realize some tests Function, there is certain adaptability, most importantly turning to damping torque when simulating real vehicle and turning to wants quick response and control Precision processed will height, the control accuracy of such aptitude test steering control system and the quality for verifying performance.
Exploitation of the testboard to EPS has important work to the control system of electric booster steering device on stream With Authorization Notice No. CN201594043 utility model patent, there is provided《Performance testing platform of electric power steering system》, The damping loading end of the test platform is connected with spring-damper, is provided in test process by the deformation of spring and turns to damping force Square, return positive process and provided by spring restoring force, the damping load-on module of test platform is simple in construction, but can only export perseverance Fixed steering damping torque and aligning torque, general test can only be carried out, it is impossible to complete comprehensive performance test and steering Feel is tested, therefore the function of testboard is limited to.It is invention patent publication number CN101135611, entitled《Motorcar electric helps The simulation test stand of power steering gear》, announcement is as damping torque analog module, due to magnetic powders brake using magnetic powder brake Device precision controlling is not high, and response speed is slow, thus test stand performance, damping torque precision and quick response feel all by Limitation.It is patent publication No. CN101187598A, entitled《The resistance simulation mechanism of automobile electric power steering system experimental》, The testing stand of announcement uses servomotor as resistance simulation mechanism, but servomotor is difficult to take into account all test wrappers Quick ring is needed when section, needing high torque to need bigger power of motor output in performance test, and turning to feel test Should, therefore high pulling torque output forms a contradiction with quick response and control accuracy, it is impossible to take into account control accuracy and turned round with big Square exports.
Above mentioned problem is concentrated mainly on following aspect:First, electric boosting steering system test platform will meet various working Under the conditions of test, input to meet manual loading input with electrical servo loading input, while also will conveniently switch.Damping Loading end can will not only simulate steering damping torque, while consider the aligning torque in steering procedure, moment of friction and Impact moment from road surface, fully test the performance of steering;Second, will consider turn to damping torque simulation precision and Fast-response, while it is also contemplated that economy.Simulating vehicle steering situation condition and the test control method of performance test are set Meter, the performance of steering can be examined to export, also to verify the steering feel under different working conditions, test platform structure is set Meter will have certain versatility, and the electric boosting steering system different structure size of same type can install test.
The content of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of electric servo steering system test platform and test side Method, it is realized that the damping torque of quick high accuracy controls simultaneously with relatively low cost, can simulate steering moment interaction, it is intended to Overcome cost too high, the problems such as measuring accuracy and not high control response speed.
The present invention can complete damping torque, aligning torque, the simulation of moment of friction, while improve response speed and control Precision.
Realize above-mentioned purpose, the technical scheme that the present invention takes is as follows:
A kind of electric servo steering system test platform, including input loading and the total object table of detection means, testboard Frame, test specimen EPS, damping loading device, vehicle dynamics simulation and traveling Road quality simulation system, PC control with Signal processing system, data analysis storage system and clamping device;
Described damping loading device includes magnetic powder brake, servomotor two, decelerator, shaft coupling three, rack-and-pinion Transmission mechanism and torque sensor two;The output end of servomotor two is connected with reducer input shaft, reducer output shaft and gear The gear axis connection of rack gear, rack and pinion drive mechanism transmit the locomotivity of track rod, and will linear motion Rotary motion is converted into, the output end of rack and pinion drive mechanism gear shaft is connected with torque sensor two, torque sensor two Output end and the input of magnetic powder brake connected by shaft coupling three, magnetic powder brake is fixed on testing stand totality stand On, servomotor two and magnetic powder brake are coaxially arranged;Input loading and detection means are fixed on testboard totality stand, defeated Entering loading and detection means includes input shaft, input bracing strut, synchronous pulley, servomotor one, reductor, timing belt, shaft coupling Device one, torque sensor one, rotary angle transmitter one, bottom plate, steering wheel, shaft coupling two;Steering wheel is arranged on input shaft, input Bracing strut supports steering wheel and input shaft, and synchronous pulley is fixed with input shaft, and servomotor one is connected with reductor input, Output end of reducer is rotated by timing belt band driven input shaft, and input shaft is connected by shaft coupling one and the input of torque sensor one Connect, the output end of torque sensor one is connected by shaft coupling two with the tested tubing string input of test specimen EPS, is tested Rotary angle transmitter one is installed on the tested tubing string input of part EPS;It is equal to input bracing strut, servomotor one and reductor It is fixed on bottom plate;Test specimen EPS is arranged on testboard totality stand, and the steering in test specimen EPS is horizontal Pull bar is fixedly clamped by clamping device;The track rod of test specimen EPS and the gear teeth in damping loading device The rack connection of strip transmission mechanism, is rotary motion by the transform linear motion of the track rod of test specimen EPS;It is defeated Enter loading and detection means, test specimen EPS, damping loading device respectively with PC control and signal processing system number According to Bidirectional Conduction, PC control and signal processing system and data analysis memory system data Bidirectional Conduction, dynamics of vehicle Emulation is conducted with traveling Road quality simulation system and PC control and signal processing system data double-way.
Method one:A kind of method that electric power steering is tested using electric servo steering system test platform, institute The method and step stated is as follows:
Step 1, performance test is carried out to test specimen EPS;
Step 2, set test parameter;
Step 3, export vehicle simulation signal;
Step 4, the control system control input load-on module output driving steering moment of described test platform, control Output damping load-on module provides corresponding steering damping torque;
Step 5, the EPS output of detection test specimen;
Step 6, display test curve preserves test data, so as to complete to test.
Method two:A kind of method that electric power steering is tested using electric servo steering system test platform, institute The method and step stated is as follows:
Step 1, turn to feel test;
Step 2, set vehicle dynamics simulation parameter and road analogy;
Step 3, signals of vehicles, including manual loading input and the driving to damping Loading Control module are exported, is calculated Turn to damping torque
Step 4, the EPS output of detection test specimen;
Step 5, display test curve preserves test data, so as to complete to test.
It is of the invention to be relative to the beneficial effect of prior art:
The electric servo steering system test platform of the present invention is electric using the magnetic powder brake and servo of lower cost Machine combination, which is not only reduced in cost but also functionally preferably simulated, turns to damping torque, aligning torque, frictional force Square and moment of inertia, servomotor and steering impulsive force of the magnetic powder brake mutual cooperation simulated roadway to wheel can also be utilized Square, damping torque when more real simulation turns to, in servo system control accuracy and rapidity, utilizes magnetic powder brake The simple larger damping torque of output easy to control is provided, it is high using small-power servomotor fast-response and control output accuracy The characteristics of export small torque compensation deviation, can with quick response and improve control accuracy, complete test bed testing.
Brief description of the drawings
Fig. 1 is the electric servo steering system test platform architecture block diagram of the present invention;
Fig. 2 is the overall structure top view of input loading and detection means;
Fig. 3 is the overall structure top view of input loading and detection means and damping loading device assembling;
Fig. 4 is Fig. 3 front view;
Fig. 5 is the top view of clamping device;
Fig. 6 is the control block diagram of PC control and signal processing system;
Fig. 7 is the control block diagram of data analysis storage system;
Fig. 8 is the step block diagram of the method one of the present invention;
Fig. 9 is the step block diagram of the method two of the present invention.
In figure:Input loading and detection means 1, input shaft 1-1, input bracing strut 1-2, synchronous pulley 1-3, servomotor One 1-4, reductor 1-5, timing belt 1-6, the 1-7 of shaft coupling one, the 1-8 of torque sensor one, the 1-9 of rotary angle transmitter one, bottom plate 1- 10th, steering wheel 1-11, the 1-12 of shaft coupling two, testboard totality stand 2, test specimen EPS 3, tested tubing string 3-1, damping Loading device 4, magnetic powder brake 4-1, the 4-2 of servomotor two, decelerator 4-3, the 4-4 of shaft coupling three, rack and pinion drive mechanism 4-5, the 4-6 of torque sensor two, vehicle dynamics simulation and traveling Road quality simulation system 5, PC control and signal transacting system System 6, data analysis storage system 7, clamping device 8, the 8-1 of screw rod one, the 8-2 of locking nut one, the 8-3 of screw rod two, locking nut two 8-4, V-type sliding block 8-5, installing frame 8-6.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with the accompanying drawings and embodiment, it is right The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not For limiting the present invention.
Embodiment one:As shown in Fig. 1 ~ Fig. 5, present embodiment describes a kind of electric servo steering system Test platform, including input loading and detection means 1, testboard totality stand 2, test specimen EPS 3, damping loading dress 4, vehicle dynamics simulation is put to store with traveling Road quality simulation system 5, PC control and signal processing system 6, data analysis System 7 and clamping device 8;
Input loading and detection means 1 are fixed on testboard totality stand 2, and input loading and detection means 1 are including defeated Enter axle 1-1, input bracing strut 1-2, synchronous pulley 1-3, the 1-4 of servomotor one, reductor 1-5, timing belt 1-6, shaft coupling one 1-7, the 1-8 of torque sensor one, the 1-9 of rotary angle transmitter one, bottom plate 1-10, steering wheel 1-11, the 1-12 of shaft coupling two;Steering wheel 1- 11 are arranged on input shaft 1-1, are fixed with the 1-2 supports of input bracing strut steering wheel 1-11 and input shaft 1-1, input shaft 1-1 Synchronous pulley 1-3, the 1-4 of servomotor one are connected with reductor 1-5 inputs, and reductor 1-5 output ends pass through timing belt 1-6 bands Driven input shaft 1-1 is rotated, and input shaft 1-1 is connected by the 1-7 of shaft coupling one with the 1-8 inputs of torque sensor one, torque sensing The 1-8 output ends of device one are connected by the 1-12 of shaft coupling two with the tested tubing string 3-1 inputs of test specimen EPS 3(Driving side Moved to the steering input shaft of disk 1-11 and test specimen), install on the tested tubing string 3-1 inputs of test specimen EPS 3 There is the 1-9 of rotary angle transmitter one;Input bracing strut 1-2, the 1-4 of servomotor one and reductor 1-5 are each attached on bottom plate 1-10(Group It is overall into an input loading);Test specimen EPS 3(According to vehicle actual angle)Installed in testboard totality stand 2 On, the track rod in test specimen EPS 3 is fixedly clamped by clamping device 8;The steering of test specimen EPS 3 Drag link is connected with the rack of the rack and pinion drive mechanism 4-5 in damping loading device 4, by turning for test specimen EPS 3 It is rotary motion to the transform linear motion of drag link;Input loading and detection means 1, test specimen EPS 3, damping plus Carry and put 4 and conducted respectively with PC control and the data double-way of signal processing system 6, PC control and signal processing system 6 Conducted with the data double-way of data analysis storage system 7, vehicle dynamics simulation and traveling Road quality simulation system 5 and PC control Conducted with the data double-way of signal processing system 6.
Data analysis storage system 7(As shown in Figure 7)Command signal is converted into control electric signal, and to each sensing The signal of device is filtered conversion input, and test interface is to test real time status for setting test data and display, including is set Determine simulating vehicle driving parameters, selection setting experimental test project, test data when display is tested, exporting change curve mistake Journey, test data is analyzed, EPS performance is embodied by data analysis, most test data is stored at last.
Embodiment two:Shown as shown in Figure 1, Figure 3 and Figure 4, a kind of electric described in embodiment one helps Power steering test platform, described damping loading device 4 include magnetic powder brake 4-1, the 4-2 of servomotor two, decelerator 4-3, the 4-4 of shaft coupling three, rack and pinion drive mechanism 4-5 and the 4-6 of torque sensor two;
The 4-2 output ends of servomotor two pass with decelerator 4-3 input axis connections, decelerator 4-3 output shafts with rack-and-pinion Motivation structure 4-5 gear axis connection, rack and pinion drive mechanism 4-5 transmit the locomotivity of track rod, and will linear motion Rotary motion is converted into, the output end of rack and pinion drive mechanism 4-5 gear shafts is connected with the 4-6 of torque sensor two, and torque passes The 4-6 of sensor two output end is connected with magnetic powder brake 4-1 input by the 4-4 of shaft coupling three, and magnetic powder brake 4-1 is fixed On testing stand totality stand 2, the 4-2 of servomotor two and magnetic powder brake 4-1 are coaxially arranged(Torque in the same direction can be provided simultaneously Damping torque when simulation turns to, when returning positive process, magnetic powder brake 4-1 simulation moment of frictions and moment of inertia).
Embodiment three:A kind of as shown in figure 5, electric servo steering system described in embodiment one Test platform, described clamping device 8 include two 8-1 of screw rod one, two 8-2 of locking nut one, two 8-3 of screw rod two, two The individual 8-4 of locking nut two, V-type sliding block 8-5 and installing frame 8-6;
V-type sliding block 8-5 is arranged in installing frame 8-6, and two 8-1 of screw rod one are respectively fixed by a 8-2 of locking nut one On installing frame 8-6, two 8-1 of screw rod one are coaxially disposed, and two 8-1 of screw rod one clamp tip is oppositely arranged, and wherein one The 8-1 of root screw rod one pinching end is corresponding with V-type sliding block 8-5 V-type opening;Two 8-3 of screw rod two respectively pass through a locking screw Two 8-4 of mother are fixed on installing frame 8-6, and two 8-3 of screw rod two are coaxially disposed, and two screw rods, two 8-3 and two 8-1 of screw rod one Horizontal vertical is set, and two 8-3 of screw rod two clamp tip is oppositely arranged(The fixed mechanism of track rod is so constituted, It using clamping device 8, can be fixed on for various sizes of drag link on testboard, adapt to different types of steering gear and survey Examination).
Embodiment four:As shown in figure 8, present embodiment is using new described in embodiment one, two or three The method that type electric boosting steering system test platform tests electric power steering, described method and step are as follows:
Step 1, performance test is carried out to test specimen EPS 3;
Step 2, set test parameter;
Step 3, export vehicle simulation signal;
Step 4, the control system control input load-on module output driving steering moment of described test platform, control Output damping load-on module provides corresponding steering damping torque;
Step 5, detection test specimen EPS 3 export;
Step 6, display test curve preserves test data, so as to complete to test.
Embodiment five:As shown in figure 9, present embodiment is using new described in embodiment one, two or three The method that type electric boosting steering system test platform tests electric power steering, described method and step are as follows:
Step 1, turn to feel test;
Step 2, set vehicle dynamics simulation parameter and road analogy;
Step 3, signals of vehicles, including manual loading input and the driving to damping Loading Control module are exported, is calculated Turn to damping torque
Step 4, detection test specimen EPS 3 export;
Step 5, display test curve preserves test data, so as to complete to test.
The present invention is that one kind turns to damping torque when driving drive simulating person's steering and running car by servomotor, is surveyed Try the experimental test module of the performance of EPS.
As shown in Fig. 1 ~ Fig. 9, during test, the corner of input loading and the detection input divertical motion of detection means 1, torque, The tested signal such as EPS current of electric and electric moter voltage is input to PC control and signal processing system 6, sensor signal Data analysis storage is passed to after AD conversion, filtering and equalization processing in PC control and signal processing system 6 System 7, the sensor signal data detected is shown change procedure on test interface in data analysis storage system 7 Out, while to data calculating analysis is carried out, and is stored, data analysis storage system 7, can set by test interface Test event, the parameter needed for input test, the data command of setting pass to PC control and signal processing system 6, on Position machine control and signal processing system 6 receive instruction be converted to electric signal and simulated automotive transport condition signal pass to input plus Carry and detection means 1, damping loading device 4 and test specimen, respectively control input loading and the input of detection means 1 are turned to and driven Dynamic, control input loading carries out divertical motion during disparity items test, and simulating vehicle transport condition signal mainly includes speed Signal and ignition signal, engine signal are input in test specimen EPS 3, and test specimen EPS 3 is according to vehicle row The different control strategy of state output is sailed, the instruction that PC control inputs with signal processing system 6 according to test interface exports The electric signal of control damping loading device 4, electric signal control magnetic powder brake 4-1 loadings and control to watch respectively according to test event Take the 4-2 of motor two loadings.The test event that vehicle dynamics simulation is set with traveling Road quality simulation system 5 according to test interface is imitated Steering damping torque of the true vehicle in steering procedure suffered by wheel, and by reflecting indirectly to the simulation for turning to damping torque Track situation, the moment of resistance signal after emulation is delivered to PC control and signal processing system 6, by being converted to telecommunications Number loading device 4 of control damping in real time, control magnetic powder brake 4-1 and the 4-2 of servomotor two output damping torque, is damped simultaneously The 4-6 of torque sensor two of loading device 4 detects damping torque in real time, is input to damping loading servo controller and carries out closed loop control System, exports accurate damping torque.
Two kinds of operating modes of time-division are tested, one kind is servo loading pattern, it is possible to achieve the steering of test specimen EPS 3 Can test, maximum current test, input/output test etc. according to《Automobile electric power steering (EPS) device technical conditions and bench test Method》The test event of formulation, second of test pattern are tested for manual loading feel, tested in simulated automotive actual travel mistake Steering feel in journey.Input loading end driving test specimen EPS 3 and input divertical motion, input loading and detection means 1 The signals such as corner, torque, the current of electric of test specimen EPS 3 and the electric moter voltage of detection input divertical motion.Test specimen EPS 3 is rotary motion by transform linear motion after steering column and track rod, by rack pinion machine Structure 4-5 structures are changed into rotary motion;Data analysis storage system 7, setting test event show letter after treatment simultaneously Number data storage and pass through interface display curvilinear motion, PC control and signal processing system 6, the test operation of interface setting By upper computer control system output control signal, PC control has the car of simulating vehicle traveling with signal processing system 6 Fast signal generator, signal generator of engine, ignition signal, and simulated failure signal generator, PC control and letter Number processing system 6 also includes input servo loading control system and damping Loading Control System, and input loading and detection means 1 are defeated The detection signal entered inputs to vehicle dynamics simulation and traveling Road quality simulation system 5 and data analysis after AD conversion after filtering Storage system 7, vehicle dynamics simulation carry out dynamics simulation according to different travelings from traveling Road quality simulation system 5 to vehicle Torque when speed and steering angle simulation turn to, the control damping loading device 4 after conversion.Tested when carrying out steering feel When, the damping torque that the magnetic powder brake 4-1 in loading device 4 provides 90% is damped, the 4-2 of servomotor two compensation is remaining to be changed Damping torque, basic damping torque is provided by magnetic powder brake 4-1 after calculating, and changing unit is by the 4-2 of servomotor two Complete, positive process is returned after the completion of steering, the 4-2 of servomotor two provides aligning torque, and magnetic powder brake 4-1 provides friction damping force Square and moment of inertia, impact moment is provided using the 4-2 of servomotor two when simulated roadway impacts.It is characterized in using and divides Open type combination driving provides damping torque and aligning torque respectively, and utilizes the 4-2 of servomotor two fast-response and essence True torque output can more accurate simulated roadway steering damping torque and aligning torque.
The foregoing is only a preferred embodiment of the present invention, these embodiments are all based on the present invention Different implementations under general idea, and protection scope of the present invention is not limited thereto, it is any to be familiar with the art Technical staff the invention discloses technical scope in, the change or replacement that can readily occur in, should all cover the present invention's Within protection domain.Therefore, protection scope of the present invention should be defined by the protection domain of claims.

Claims (4)

1. a kind of electric servo steering system test platform, including input loading and detection means(1), the total object table of testboard Frame(2), test specimen EPS(3), damping loading device(4), vehicle dynamics simulation with traveling Road quality simulation system(5)、 PC control and signal processing system(6), data analysis storage system(7)And clamping device(8);It is characterized in that:It is described Damping loading device(4)Including magnetic powder brake(4-1), servomotor two(4-2), decelerator(4-3), shaft coupling three(4- 4), rack and pinion drive mechanism(4-5)And torque sensor two(4-6);Servomotor two(4-2)Output end and decelerator(4- 3)Input axis connection, decelerator(4-3)Output shaft and rack and pinion drive mechanism(4-5)Gear axis connection, rack-and-pinion pass Motivation structure(4-5)The locomotivity of track rod is transmitted, and is rotary motion by transform linear motion, rack and pinion drive mechanism (4-5)The output end of gear shaft and torque sensor two(4-6)Connection, torque sensor two(4-6)Output end and magnetic system Dynamic device(4-1)Input pass through shaft coupling three(4-4)Connection, magnetic powder brake(4-1)It is fixed on testing stand totality stand(2) On, servomotor two(4-2)With magnetic powder brake(4-1)It is coaxially arranged;
Input loading and detection means(1)It is fixed on testboard totality stand(2)On, input loading and detection means(1)Including Input shaft(1-1), input bracing strut(1-2), synchronous pulley(1-3), servomotor one(1-4), reductor(1-5), timing belt (1-6), shaft coupling one(1-7), torque sensor one(1-8), rotary angle transmitter one(1-9), bottom plate(1-10), steering wheel(1- 11), shaft coupling two(1-12);Steering wheel(1-11)Installed in input shaft(1-1)On, input bracing strut(1-2)Support steering wheel (1-11)And input shaft(1-1), input shaft(1-1)On be fixed with synchronous pulley(1-3), servomotor one(1-4)With reductor (1-5)Input connects, reductor(1-5)Output end passes through timing belt(1-6)Band driven input shaft(1-1)Rotation, input shaft(1- 1)Pass through shaft coupling one(1-7)With torque sensor one(1-8)Input connects, torque sensor one(1-8)Output end passes through Shaft coupling two(1-12)With test specimen EPS(3)Tested tubing string(3-1)Input connects, test specimen EPS (3)Tested tubing string(3-1)Rotary angle transmitter one is installed on input(1-9);Input bracing strut(1-2), servomotor one (1-4)And reductor(1-5)It is each attached to bottom plate(1-10)On;Test specimen EPS(3)Installed in testboard totality stand (2)On, test specimen EPS(3)In track rod pass through clamping device(8)It is fixedly clamped;Test specimen EPS (3)Track rod with damping loading device(4)In rack and pinion drive mechanism(4-5)Rack connection, will be tested Part EPS(3)The transform linear motion of track rod be rotary motion;Input loading and detection means(1), it is tested Part EPS(3), damping loading device(4)Respectively with PC control and signal processing system(6)Data double-way conducts, on Position machine control and signal processing system(6)With data analysis storage system(7)Data double-way conducts, vehicle dynamics simulation and row Sail Road quality simulation system(5)With PC control and signal processing system(6)Data double-way conducts.
A kind of 2. electric servo steering system test platform according to claim 1, it is characterised in that:Described folder Hold mechanism(8)Including two screw rods one(8-1), two locking nuts one(8-2), two pieces screw rods two(8-3), two locking nuts Two(8-4), V-type sliding block(8-5)And installing frame(8-6);V-type sliding block(8-5)It is arranged on installing frame(8-6)It is interior, two screw rods one (8-1)Respectively pass through a locking nut one(8-2)It is fixed on installing frame(8-6)On, two screw rods one(8-1)It is coaxially disposed, two Root screw rod one(8-1)Clamp tip be oppositely arranged, an and wherein screw rod one(8-1)Pinching end and V-type sliding block(8-5)'s V-type opening is corresponding;Two screw rods two(8-3)Respectively pass through a locking nut two(8-4)It is fixed on installing frame(8-6)On, two Root screw rod two(8-3)It is coaxially disposed, and two screw rods two(8-3)With two screw rods one(8-1)Horizontal vertical is set, two screw rods Two(8-3)Clamp tip be oppositely arranged.
3. a kind of electric servo steering system test platform using described in claim 1 or 2 tests electric power steering Method, it is characterised in that:Described method and step is as follows:
Step 1, to test specimen EPS(3)Carry out performance test;
Step 2, set test parameter;
Step 3, export vehicle simulation signal;
Step 4, the control system control input load-on module output driving steering moment of described test platform, control output Damp load-on module and corresponding steering damping torque is provided;
Step 5, detect test specimen EPS(3)Output;
Step 6, display test curve preserves test data, so as to complete to test.
4. a kind of electric servo steering system test platform using described in claim 1 or 2 tests electric power steering Method, it is characterised in that:Described method and step is as follows:
Step 1, turn to feel test;
Step 2, set vehicle dynamics simulation parameter and road analogy;
Step 3, signals of vehicles, including manual loading input and the driving to damping Loading Control module are exported, calculates steering Damping torque
Step 4, detect test specimen EPS(3)Output;
Step 5, display test curve preserves test data, so as to complete to test.
CN201511030045.4A 2015-12-31 2015-12-31 A kind of electric servo steering system test platform and method of testing CN105606382B (en)

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CN106872189A (en) * 2017-01-17 2017-06-20 安徽德孚转向系统股份有限公司 A kind of electric boosting steering system performance test is combined test bed
CN107462427A (en) * 2017-07-28 2017-12-12 上海科世达-华阳汽车电器有限公司 The method of testing and test system of a kind of steering column module
CN108020433B (en) * 2017-12-19 2020-01-31 浙江工业大学 Method for simulating test performance by using electric power steering system test platform
CN109030031A (en) * 2018-06-28 2018-12-18 郑州轻工业学院 Automobile electric power-assisted steering controller performance test macro and method

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