CN107314906A - A kind of automobile electro-mechanical brake system experimental bench - Google Patents
A kind of automobile electro-mechanical brake system experimental bench Download PDFInfo
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- CN107314906A CN107314906A CN201710685588.2A CN201710685588A CN107314906A CN 107314906 A CN107314906 A CN 107314906A CN 201710685588 A CN201710685588 A CN 201710685588A CN 107314906 A CN107314906 A CN 107314906A
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- G—PHYSICS
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- 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
A kind of automobile electro-mechanical brake system experimental bench, it is characterised in that it includes experimental stand (2) and the simulated automotive traveling module, brake system actuator module, braking signal collection module and the pedal simulator module that are located on experimental stand (2).The present invention exports brake voltage values control braking moment motor change by changing the angle of brake pedal of pedal simulator in running car module, by changing in running car module, counterweight number of blocks realizes the variable of vehicle load rotary inertia in brake disc, the variable of automobile speed is realized by the rotating speed for changing frequency converter output control threephase asynchronous in running car module, change executor module parameter by changing brake system actuator torque motor and decelerator and realize the variable of simulation vehicle, this testing stand can the true simulated automotive electromechanical braking system course of work, it is simple in construction, manufacturing cost is low and easy to implement, it is convenient for measuring electromechanical braking system brake force and brake clearance eliminates the time.
Description
Technical field
The invention belongs to a kind of experimental facilities, more particularly to a kind of automobile electro-mechanical brake system experimental bench.
Background technology
As vehicle intellectualized develops rapidly, X-by-wire on Automobile arises at the historic moment, and is answered on vehicle with extensive
With it is the new control system controlled based on information interaction system and in real time.Automobile electro-mechanical brake system is used as automobile
On one branch of wire control technology, the hydraulic pressure and Pneumatic braking system traditional to replace, its structural principle and control algolithm all
Made a big difference with Conventional braking systems, be a kind of brand-new automobile brake theory.Automobile electro-mechanical brake system relies on
The advantages of its energy-saving and environmental protection and quick braking response and preferential Automobile Enterprises abroad are widely studied, its theoretical research, examination
Test test platform and model machine manufacture is started late at home, but the development passed through in recent years there has also been suitable breakthrough.It is adjoint
Highway fast development and speed continuous improvement, modern vehicle requirement with higher comfortableness, security with
And stability, this also proposes higher requirement to vehicle electromechanical Brake Control.
Automobile electro-mechanical brake system is used as a kind of new braking method, traditional brakes experimental bench basis knot
Structure is inconsistent with it, and function is single, use requirement can not be met, therefore need a kind of experimental bench with real automotive electronics machine
Based on tool brakes, the composition structure and the course of work of automobile electro-mechanical brake system are fully shown, electricity is convenient for measuring
Handset tool brake system power and its response efficiency.
The content of the invention
It is an object of the invention to provide a kind of automobile electro-mechanical brake system experimental bench, to overcome above-mentioned deficiency.
In order to solve the above technical problems, the present invention provides following technical scheme：
A kind of automobile electro-mechanical brake system experimental bench, its design feature is, including experimental stand and is located at reality
Simulated automotive traveling module, brake system actuator module, braking signal collection module and the pedal simulator mould tested on stand
Block.
Further, the simulated automotive traveling module includes motor, clutch and brake disc, and the output shaft of the motor leads to
Cross clutch to be connected with disc centres axle, and by clutch cut-out and transmit the power that motor is inputted to brake disc.
Further, the brake system actuator module includes being arranged on brake block one inside and outside brake disc, braking
Block two and the removable support platform being located on experimental stand, the brake block two are connected by link assembly and support platform
Connect, the support platform is provided with torque motor, the output shaft of the torque motor is connected with reducer input shaft, it is described to slow down
Device output shaft is connected by the ball-screw of flexible coupling and ball screw assembly, and rolling ball screw pair screw nut is with being right against brake block
One platen is fixedly connected；The support platform can be moved on experimental stand along ball screw assembly, axial reciprocating.
Further, the pedal simulator includes running part and transducing part,
The running part includes brake pedal, brake connecting rod, return spring, clamp button of the spring and pedal axis of rotation；Institute
State brake pedal to be fixedly connected with brake connecting rod, receive pedal brake power；The return spring and brake connecting rod pass through Spring Card
Button connection, supports brake connecting rod, and provide braking counter-force；The brake connecting rod can be around pedal axis of rotation in certain angle
Motion；
The transducing part includes pivoted arm, rocking arm, actuating arm and stroke sensor；The pivoted arm is consolidated with pedal axis of rotation
Fixed connection, the pivoted arm, rocking arm and actuating arm are linked in sequence using hinge, and the actuating arm connects stroke sensor；The row
The journey sensor other end is fixed on pedal bottom, and angle of the pedal simulator by brake pedal around pedal axis of rotation becomes
Change the voltage change for being converted into stroke sensor；The angle change of pedal is converted into voltage signal, for into brakes
Simulation executing inputs variable voltage.
Further, the relation formula of the pedal simulator output voltage and pedal corner is as follows：
In formula, u is the output voltage of stroke sensor, and θ is pivoted arm initial position and vertical direction angle, and a is that pivoted arm is long
Degree, U0For the input voltage of stroke sensor, L is the resistance total length of stroke sensor,For brake pedal rotational angle.
Further, caliper is provided with above the brake disc, the caliper includes a pair and the axially in parallel skid beam of brake disc,
The brake block one and brake block two are respectively equipped with hanger, and the hanger is slided and is overlapped in the skid beam of caliper.
Further, the link assembly includes fixed seat and " L " the shape gap ligand fixed with removable support platform,
Between the gap ligand vertical plate insertion brake block two and caliper side bar, for stirring brake block two.
Further, the braking signal collection module includes digital indicator, displacement transducer and pressure sensor, described
Displacement transducer is symmetrically mounted between the brake block hanger of brake block one and brake block two, for gathering the position between two brake block
Move variable quantity；The digital indicator can show pressure and the shift value change of synchronization simultaneously.
Further, balancing weight hole has been evenly arranged in the brake disc, has set what is be detachably connected with balancing weight hole
Brake disc balancing weight, the change of brake disc inertia mass is realized by the change of brake disc counterweight number of blocks in brake disc.
Further, the brake disc balancing weight is fixed in the balancing weight hole of brake disc by the way that screw is embedded.
Compared with prior art, the beneficial effects of the present invention are：
The present invention realizes that automobile braking force is variable by pedal simulator output voltage, is improved quality block by changing brake disc
Quantity realize the variable of automobile load, realize the variable of automobile speed by changing the rotating speed of threephase asynchronous, pass through
Change actuator braking motor parameter, the speed reducing ratio parameter of decelerator and realize simulation kart and mini SUV braking vehicle
It is variable, this testing stand can the true simulated automotive electromechanical braking system course of work, simple in construction, manufacturing cost is low and is easy to
Implement, versatility preferably, is convenient for measuring electromechanical braking system brake pressure and its brake clearance eliminates time test experiment.
Brief description of the drawings
Fig. 1 is automobile electro-mechanical brake system experimental bench structural representation of the present invention.
Fig. 2, Fig. 3 are electromechanical brake system actuator of automobiles partial enlarged drawing of the invention.
Fig. 4 is the brake disc structure schematic diagram that the present invention has mass.
Fig. 5 is brake disc of the present invention and structural representation at brake block cooperation.
Fig. 6 is brake disc and the schematic diagram provided with pressure sensor and displacement transducer at brake block cooperation.
(a) is brake disc and overall structure diagram at brake block cooperation in Fig. 6, and (b) is pressure sensor schematic diagram,
(c) it is pressure sensor fixed plate schematic diagram.
Fig. 7 is the structural representation of brake pedal simulator of the present invention.
(a) is dimensional structure diagram in Fig. 7, and (b) is schematic diagram.
Fig. 8 is brake block structural representation of the present invention.
Fig. 9 is the dynamic link assembly structural representation of the present invention.
Wherein：1. the bearing block of 5. electromagnetic clutch of universal wheel 2. stand, 3. frequency converter, 4. threephase asynchronous 6.
7. the permanent-magnet DC brushless torque of 11. planetary reducer of mass 8. side bar, 9. link assembly, 10. shaft coupling 12. is electric
The control system 17. of 15. digital indicator of machine 13. sliding block, the 14. guide rail 16. simulation control brake disc 19. of power supply 18. is rolled
The brake block one of 24. support base of ballscrew 20. support base, one 21. feed screw nut, 22. platen, 23. support base, two lid 2 25.
26. the brake block 2 31. of 27. brake disc balancing weight of support platform, 28. 29. caliper of brake disc balancing weight positioning screw 30. is hung
The pressure of 36. displacement transducer of ear 32. support base, one fixed seat, 33. connecting rod, 34. gap ligand, 35. fixation kit 37.
The pressure sensor of 38. pressure sensor fixed plate of sensor 39. fixes the brake connecting rod of 40. brake pedal of shell lug 41.
42. the stroke sensing of 7. actuating arm of return spring 43. clamp button of the spring, 44. pedal axis of rotation, 45. pivoted arm, 46. Rocker arm 4 48.
Device
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in figure 1, a kind of automobile electro-mechanical brake system experimental bench, including experimental bench stand 2, the experimental bench stand
Provided with electromechanical braking system executor module, simulated automotive traveling module, braking signal collection module and pedal simulation
Device module, experimental bench stand bottom, which is provided with universal wheel 1, universal wheel, sets castor self-locking device.
Module, braking signal collection module are travelled to the brake system actuator module in the present invention, simulated automotive below
Make and further explaining with the preferred plan of pedal simulator module, but be not the unique restriction made to it, its
The prior art that can have identical function by other is substituted.
Referring to Fig. 2, electromechanical braking system executor module includes being arranged on the brake block 1 in the outside of brake disc 18
And permanent-magnet DC brushless torque motor 12, planetary reducer 11, ball-screw 19, feed screw nut 21, platen 22.
The top of brake disc 18 is provided with caliper 29, and caliper 29 includes a pair and the axially in parallel skid beam of brake disc, brake block one
25 and brake block 2 30 be respectively equipped with hanger 31, hanger 31 is slided and is overlapped in the skid beam of caliper 29.
Permanent-magnet DC brushless torque motor 12 is driven by pedal simulator output control voltage, permanent-magnet DC brushless torque electricity
The output shaft of machine 12 is connected with the input shaft of planetary reducer 11, and the output shaft of planetary reducer 11 connects with ball screw assembly,
Connect, wherein ball screw assembly, includes ball-screw 19, rolling ball screw pair screw nut 21, rolling ball screw pair screw nut 21 is fixed with platen 22
Connection, platen 22 contacts braking when braking with brake block 1.Permanent-magnet DC brushless torque motor 12, planetary reducer 11
Supported, be fixed in support platform 26 by support base 1 and support base 2 24 with ball screw assembly, whole support platform 26 is consolidated
It is scheduled on fixation kit 35, the bottom of fixation kit 35 is provided with sliding block 13, and bed stand 2 is provided with and is slidably matched with sliding block 13
Slide rail 14, support platform 26 can move horizontally on bed stand 2 along slide rail, and this moves horizontally direction and brake disc axial direction
Direction is consistent.
Pedal simulator output control voltage drives, i.e., the original electricity of the output of stroke sensor 48 of foregoing pedal simulator
Pressure, controlled motor drives after being handled through existing control system.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 9, link assembly 9 includes fixed seat 32, connecting rod 33 and gap ligand 34, fixed seat
32 are fixed on support base 1 by bolt, and support base two includes the body 24 of support base two and support base two detachably installed
Lid 23, spacing hole is formed between the body 24 of support base two and the lid 23 of support base two；The connecting rod 33 of link assembly runs through the spacing hole,
Gap ligand 34 is L-shaped structure, and its riser is embedded in the gap between the side bar 8 of caliper 29 and brake block 2 30.
During linkage, executor module drives support base 1 to move right, and passes through the drivening rod of one fixed seat of support base 32
Component is moved, and the contact with brake disc 18 of brake block two is realized in the driving movement of brake block 2 30.
Referring to Fig. 1, Fig. 4, simulated automotive traveling module includes threephase asynchronous 4, electromagnetic clutch 5 and with braking
The brake disc 18 of disk balancing weight 27, brake disc balancing weight 27 and brake disc 18 are fixed by brake disc balancing weight positioning screw 28, system
The change of brake disc inertia mass is realized in the change of the quantity of Moving plate balancing weight 27, and simulation control power supply 17 can be real by control system 16
When adjust threephase asynchronous 4 control voltage, the change of simulating wheel rotating speed.Brake disc 18 passes through the phase asynchronous electricity
The input of motivation 4 is connected with speed governing frequency converter 3, and output shaft is connected with the electromagnetism end of electromagnetic clutch 5 by connecting key, and three is different
The bearings of motor 4 and brake disc 18 by two ends with bearing block 6 are walked on experimental bench, the flange end of electromagnetic clutch 5
It is connected with disc centres axle by connecting key.
For state of the accurate simulated automotive under any travel speed, 1.5KW-220AC is set to threephase asynchronous
Variable-frequency governor 3, adjusts relation between the frequency values of variable-frequency governor and vehicle wheel rotational speed, specific formula is such as by control system 16
Under：
In formula (1), n is motor speed, rev/min, f is frequency, and s is revolutional slip, typically takes 0.01-0.02；P is motor
Electromagnetism number of pole-pairs, bipolar machine p be 1, quadrupole motor is 2, and 2 are taken here.
Frequency f is normally 50Hz, simulates normal wheels rotating speed, can be according to the requirement of operating condition of test object, regulation
Frequency values realize the change of vehicle wheel rotational speed.
Referring to Fig. 1, Fig. 5, Fig. 6, braking signal collection module includes the digital indicator 15, (KSC-8mm of displacement transducer 36
Displacement transducer) and pressure sensor 37, displacement transducer 36 is symmetrically mounted on the braking of brake block 1 and brake block 2 30
Between block hanger 31, displacement sensing terminal abuts the backboard of brake block 1, and bottom terminals abut brake block 2 30；The spacing He of side bar 8
The collective effect of platen 22 ensures the pretension of displacement transducer 36, displacement sensing in brake block 1 and brake block 2 30 in level
The spring effect of device 36 is in four brake block hangers 31, it is ensured that braking return, digital indicator can show synchronization simultaneously
Pressure and shift value change.
Referring to Fig. 1, Fig. 6, the side of pressure sensor 37 is provided with screwed hole, is connected through a screw thread and is fixed on corresponding pressure
In force snesor fixed plate 38, the equivalent brake block 1 of the structure of fixed plate 38, and with friction catch function, hung by hanger 39
On caliper, but thickness is smaller, during experiment, and the inner side of brake disc 18 is arranged in instead of brake block 1, and sensing pressure head is close to solid
On the outside of fixed board, the digital indicator can show pressure and the shift value change of synchronization simultaneously.
Referring to Fig. 7, pedal simulator is mainly made up of running part and transducing part, and brake pedal 40 is revolved around pedal
The angle change of the rotating shaft heart 44 is converted into the voltage change of stroke sensor 48.Running part includes brake pedal 40, braking and connected
Bar 41, return spring 42, clamp button of the spring 43 and pedal axis of rotation 44.Brake pedal 40 is fixedly connected with brake connecting rod 41, is connect
Receive pedal brake power；Return spring 42 and brake connecting rod 41 are connected by clamp button of the spring 43, support brake connecting rod 41, and provide system
Dynamical reaction；Pedal axis of rotation 44 is located on base platform, and brake connecting rod 41 is rotated with pedal axis of rotation 44 and is connected, and can be surrounded
Pedal axis of rotation 44 is moved in certain angle.
Transducing part includes pivoted arm 45, Rocker arm 46, actuating arm 47 and stroke sensor 48.Pivoted arm is consolidated with pedal axis of rotation
Fixed connection, pivoted arm 45, Rocker arm 46 and actuating arm 47 are linked in sequence using hinge, actuating arm connection stroke sensor；Stroke sensing
The device other end is fixed on base platform, and stroke sensor 48 uses electric resistance sensor principle, and change electricity is driven by actuating arm 47
Resistance.In experiment, brake pedal 40 surrounds the proportional change of the angle of pedal axis of rotation 44, and the voltage of stroke sensor 48 is in meter
Calculation mode is as follows：
The relation of pedal simulator output voltage and pedal corner is represented by equation below：
In formula (2), u is the output voltage of stroke sensor 48, and θ is the initial position of pivoted arm 45 and vertical direction angle, and a is
The length of pivoted arm 45, U0For the input voltage of stroke sensor 48, L is the resistance total length of stroke sensor 48,For brake pedal
40 rotational angles.
The operation principle of the present invention program is as follows：
During experiment, mobile fixation kit 35 arrives restraining position, and platen 22, at a distance of 0.1mm or so, connects electricity with brake block one
The power supply of magnet clutch 5, electromagnetic clutch 5 is closed, and brake disc 18 is run in the case of design speed and design (calculated) load, and regulation becomes
Wheels travel rotating speed under the rotating speed simulated test operating mode of the output frequency of frequency device 3 change threephase asynchronous 4, changes brake disc 18
The quantity of block 27 of improving quality realizes rotary inertia variable board design load change, and digital indicator 15 shows single wheel in real time
Rotating speed.
By changing actuator braking moment motor 12 and decelerator 11, the torque and biography of the continuous stall of actuator can be achieved
The Parameters variation of dynamic ratio, simulation kart and mini SUV braking vehicle change.When the model of torque motor 12
J110LYX04A non-brush permanent-magnet DC motor, the model NGW planetary gear reducing mechanisms of decelerator 11 and gearratio are 4.3
When, simulation is kart, and now the torque of continuous stall is 3.2N.m, and gearratio is 4.3；It is continuous when torque motor 12
The torque of stall is more than 3.2N.m, and gearratio is in 4.3-7.9, the mini SUV vehicles of simulation.
During braking, electromagnetic clutch 5, cut-out brake disc 18 and the power connector of threephase asynchronous 4 are disconnected.Pedal mould
Intend the voltage change that brake pedal 40 is converted into stroke sensor 48 by device around the angle change of pedal axis of rotation 44, voltage
Change with angle in shown in formula (2).
In the present embodiment：θ is 30 °, and a length is 3cm, U0For 12V, the resistance total length L of stroke sensor is 12cm,
Obtained by bevel protractor measurement.
Pedal simulator exports a variable voltage to control according to the change of pedal rotational angle by stroke sensor 48
System 16, the output control voltage of control system 16 driving permanent-magnet DC brushless torque motor, permanent-magnet DC brushless torque motor 12
Variable torque is exported under variable voltage, is slowed down through planetary reducer 11 after increasing square, ball screw assembly, is changed as motion
Device changes into the high pulling torque that planetary reducer 11 is transmitted the variable axial thrust of feed screw nut 21, promotes brake block one
25 move to brake disc 18, and when brake block 1 contacts generation contact force with brake disc 18, this contact force acts on ball wire
Thick stick by-product gives birth to reaction force, and permanent-magnet DC brushless torque motor 12, planetary reducer 11 and ball screw assembly, are arranged on branch
Support on platform 26, support platform 26 is moved under reaction force along guide rail 14 to away from the direction of brake disc 18, due to brake connecting rod
Component is fixedly connected with support base 1, and the gap ligand of brake connecting rod component drives brake block 2 30 to be moved to brake disc 18
It is dynamic, when brake block 1 and brake block 2 30 are contacted with brake disc 18, so that variable brake pressure is produced, until braking
Complete.
Pedal output voltage, the change of pedal corner, brake pressure value, displacement transducer are monitored on digital indicator 15 in real time
Changing value and its temporal information, calculate braking clamping force accordingly and brake clearance eliminates the time, with brake legislation contrast reflection system
The braking effect of dynamic actuator.
Present system pilot plant testing method and test result analysis are provided further below
(1) test method
The operating simulation actual row of vehicle of automobile brake disc 18 with balancing weight 27 is driven by three-phase asynchronous Ac motor 4
Journey is crossed, three-phase asynchronous Ac motor 4 is connected with automobile brake disc 18 by electromagnetic clutch 5, by the electricity of electromagnetic clutch 5
The break-make control of stream, realizes the connection and disconnection of three-phase asynchronous Ac motor 4 and automobile brake disc 18.Simulated by changing pedal
The angle of brake pedal 40 of device realizes the control to torque motor 12, the relation of its output voltage and the angle of brake pedal 40 referring to
Formula (2).Digital indicator shows magnitude of voltage, pressure sensor and the displacement transducer value of brake pedal simulator output in real time,
(2) brake pressure testing experiment
Support platform is fixed on guide rail 14 in experiment, then system actuators are slided with testing stand support without relative.Braking
When, platen 22 directly acts on the pressure head of pressure sensor 37.
The angle of brake pedal 40 is controlled respectively, applies 2V, 4V, 6V, 8V, 10V and 12V magnitude of voltage, note to torque motor
Record pressure sensor 37 and show numerical value, as shown in table 1.
The braking clamping force experiment value of table 1 is compared with theoretical value, simulation value
Braking clamping force experiment value is more or less the same with theoretical value and simulation value, illustrates that experimental design fully meets brake force survey
Try use requirement.Braking clamping force increases with the increase of locked-rotor voltage under three conditions, approximate proportional example change, this
Be also electromechanical braking system regulation voltage can regulating brake force advantage where.Experiment value is smaller, is mainly put to the test
The influence of the factors such as the complicated environmental condition in alignment error, motor in journey mechanical property in itself and the external world.
Theoretical value in table 1 is to pass through mechanical force according to torque motor as shown in Figure 2, decelerator and screw-nut structure
Gain knowledge to calculate；Simulation value is got by ADAMS modeling and analyzings.
(3) brake clearance eliminates time test experiment
System actuators module is divided into motor from starting to maximum non-load speed and motor eliminating the brake clearance stage
At the uniform velocity operate two processes.Very short due to eliminating the brake clearance time, automobile brake block is 0.1mm with the side clearance of brake disc one,
Total brake clearance is 0.2mm, and accurately in brake disc both sides, setting 0.1mm is difficult, therefore sets original gap as 2.5mm, then interior
The common 5mm of lateral gap.
Test procedure is as follows：
1) needed according to the braking of kart, installation fixes torque motor 12 and decelerator 11；
2) sliding block 13 is fixed on guide rail 14, it is ensured that actuator relative can be slided with testing stand support；
3) arrange that two displacement transducers 36 between brake block 1 and brake block 2 30, will be provided with pressure sensor 37
Pressure sensor fixed plate 38 replace brake block 1, hung over by its hanger 39 on inlay 29, installation fix connection rod set
Part 9；
4) required according to operating condition of test, increase and decrease brake disc balancing weight 27 is in brake disc 18；
5) switch on power, adjust frequency converter 3, control motor 4 rotates, and connects the power supply of electromagnetic clutch 5, electromagnetic clutch
Device 5 is closed, and drives brake disc 18 to rotate；
6) angle of pedal simulator pedal 40 is changed, braking is realized in the driving work of torque motor 12.Observe numerical monitor
The output voltage values of stroke sensor 48 on instrument, when magnitude of voltage is 2V, 4V, 6V, 8V, 10V and 12V, are stepped on bevel protractor measurement
The angle change of plate 40, reads the output valve of pressure sensor 37, records in table 1；
7) observation digital indicator on the output voltage values of stroke sensor 48, displacement transducer 36 displacement variable with
And brake block time change, when 22 contact pressure sensor 37 of platen, the start recording time；When displacement transducer 36 is shown as
When 2mm, 3mm, 4mm and 5mm, record the time in table 2, according to when m- displacement formula, calculate the brake block speed of service, record
In table 2.
8) cut off the electricity supply, off-test.
The displacement sensor data of table 2
It can show that the maximal rate that brake block travels at the uniform speed in the elimination brake clearance stage is according to above-mentioned experimental result
2.53mm/s, meets brake legislation 2mm/s use requirement.The survey report provided according to torque motor producer, this model power
It is 0.04s that torque motor, which was operated to the maximum non-load speed response time, and this response time section brake block displacement is about 0.05mm,
Then this electromechanical brake system actuator of automobiles elimination brake clearance time is about 0.10s, meets the elimination of brake legislation gap
Time 0.05-0.15s use requirement.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements done within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. a kind of automobile electro-mechanical brake system experimental bench, it is characterised in that including experimental stand (2) and be located at experiment
Simulated automotive traveling module, brake system actuator module, braking signal collection module and pedal simulator mould on stand (2)
Block.
2. a kind of automobile electro-mechanical brake system experimental bench according to claim 1, it is characterised in that the simulation vapour
Car traveling module includes motor, clutch and brake disc, and the output shaft of the motor is connected by clutch and disc centres axle
Connect, and by clutch cut-out and transmit the power that motor is inputted to brake disc.
3. a kind of automobile electro-mechanical brake system experimental bench according to claim 1, it is characterised in that the braking system
System executor module includes being arranged on brake block one (25) inside and outside brake disc (18), brake block two (30) and is located at reality
The removable support platform (26) tested on stand (2), the brake block two (30) passes through link assembly (9) and support platform (26)
Connection, the support platform (26) is provided with torque motor (12), output shaft and the decelerator (11) of the torque motor (12)
Input shaft is connected, and decelerator (11) output shaft is connected by the ball-screw (19) of flexible coupling (10) and ball screw assembly,
Connect, rolling ball screw pair screw nut (21) is fixedly connected with being right against the platen (22) of brake block one (25)；The support platform (26)
It can be moved on experimental stand (2) along ball screw assembly, axial reciprocating.
4. a kind of automobile electro-mechanical brake system experimental bench according to claim 1, it is characterised in that its feature exists
In, caliper (29) is provided with above the brake disc (18), the caliper (29) includes a pair and the axially in parallel skid beam of brake disc,
The brake block one (25) and brake block two (30) are respectively equipped with hanger (31), and the hanger (31) is slided and is overlapped on caliper (29)
Skid beam on.
5. a kind of automobile electro-mechanical brake system experimental bench according to claim 4, it is characterised in that the braking letter
Number acquisition module includes digital indicator (15), displacement transducer (36) and pressure sensor (37), institute's displacement sensors
(36) between the brake block hanger (31) for being symmetrically mounted on brake block one (25) and brake block two (30), for gathering two brake block
Between displacement variable；The pressure sensor (37) is located on brake block one (25), for gathering brake block one (25) and pressure
Change value of pressure between disk；The digital indicator (15) can show pressure and the shift value change of synchronization simultaneously.
6. a kind of automobile electro-mechanical brake system experimental bench according to claim 1 or 4, it is characterised in that described to step on
Plate simulator includes running part and transducing part,
The running part includes brake pedal (40), brake connecting rod (41), return spring (42), clamp button of the spring (43) and pedal
Axis of rotation (44)；The brake pedal (40) is fixedly connected with brake connecting rod (41), receives pedal brake power；The return bullet
Spring (42) and brake connecting rod (41) are connected by clamp button of the spring (43), support brake connecting rod (41), and provide braking counter-force；It is described
Brake connecting rod (41) can be moved around pedal axis of rotation (44) in certain angle；
The transducing part includes pivoted arm (45), rocking arm (46), actuating arm (47) and stroke sensor (48)；The pivoted arm (45)
It is fixedly connected with pedal axis of rotation (44), the pivoted arm (45), rocking arm (46) and actuating arm (47) are linked in sequence using hinge,
Actuating arm (47) the connection stroke sensor (48), stroke sensor (48) other end is fixed on pedal base；Institute
State angle change of the pedal simulator by brake pedal (40) around pedal axis of rotation (44) and be converted into stroke sensor (48)
Voltage change；The angle change of pedal is converted into voltage signal, for into brakes simulation executing input it is variable
Voltage.
7. a kind of automobile electro-mechanical brake system experimental bench according to claim 6, it is characterised in that the pedal mould
The relation formula for intending device output voltage and pedal corner is as follows：
In formula, u is the output voltage of stroke sensor (48), and θ is pivoted arm (45) initial position and vertical direction angle, and a is to turn
Arm (45) length, U0For the input voltage of stroke sensor (48), L is the resistance total length of stroke sensor (48),For braking
Pedal (40) rotational angle.
8. a kind of automobile electro-mechanical brake system experimental bench according to claim 1, it is characterised in that the connection rod set
Part (9) includes fixed seat (32) and " L " the shape gap ligand (34) fixed with removable support platform (26), and the gap is matched somebody with somebody
Between fit vertical plate insertion brake block two (30) and the side bar (8) of caliper (29), for stirring brake block two (30).
9. a kind of automobile electro-mechanical brake system experimental bench according to claim 1, it is characterised in that the system
Balancing weight hole has been evenly arranged on Moving plate (18), the brake disc balancing weight (27) being detachably connected with balancing weight hole is set, passed through
The change of brake disc inertia mass is realized in the change of brake disc balancing weight (27) quantity in brake disc (18).
10. a kind of automobile electro-mechanical brake system experimental bench according to claim 1, it is characterised in that the brake disc
Balancing weight (27) is fixed in the balancing weight hole of brake disc (18) by the way that screw is embedded.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710685588.2A CN107314906B (en) | 2017-08-11 | 2017-08-11 | A kind of automobile electro-mechanical brake system experimental bench |
| PCT/CN2017/097322 WO2019028927A1 (en) | 2017-08-11 | 2017-08-14 | Testing bench for automobile electro-mechanical brake system |
| ZA2019/06857A ZA201906857B (en) | 2017-08-11 | 2019-10-17 | Experimental platform for automotive electromechanical braking system |
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| CN111366364A (en) * | 2020-04-13 | 2020-07-03 | 中国人民解放军63921部队 | Method and device for testing performance of brake for low-speed heavy-load equipment |
| CN113353050A (en) * | 2020-03-06 | 2021-09-07 | 上海汽车集团股份有限公司 | Brake testing system and method |
| CN113375947A (en) * | 2021-06-04 | 2021-09-10 | 浙江佳骏汽车零部件有限公司 | Detection device for automobile brake production |
| CN113533959A (en) * | 2021-06-30 | 2021-10-22 | 东阳市联宜机电有限公司 | Motor brake performance detection device |
| CN114274966A (en) * | 2021-11-25 | 2022-04-05 | 惠州市德赛西威汽车电子股份有限公司 | Driving behavior monitoring method and system based on UWB technology |
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| CN111610019B (en) * | 2020-06-01 | 2021-12-21 | 浙江众兴智能科技股份有限公司 | Performance test system and test method for assembled speed reducer |
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| CN113533959B (en) * | 2021-06-30 | 2022-08-23 | 浙江联宜电机有限公司 | Motor brake performance detection device |
| CN114274966A (en) * | 2021-11-25 | 2022-04-05 | 惠州市德赛西威汽车电子股份有限公司 | Driving behavior monitoring method and system based on UWB technology |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019028927A1 (en) | 2019-02-14 |
| ZA201906857B (en) | 2020-10-28 |
| CN107314906B (en) | 2019-09-20 |
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