CN107314905B - Simulation actuator of automobile electronic braking system - Google Patents
Simulation actuator of automobile electronic braking system Download PDFInfo
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- CN107314905B CN107314905B CN201710685586.3A CN201710685586A CN107314905B CN 107314905 B CN107314905 B CN 107314905B CN 201710685586 A CN201710685586 A CN 201710685586A CN 107314905 B CN107314905 B CN 107314905B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/28—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for testing brakes
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Abstract
The automobile electronic brake system simulation actuator is characterized by comprising a brake disc (18) rotatably connected with a power output shaft and a movable supporting platform (26), wherein an inner brake block (25) and an outer brake block (30) are respectively arranged on the inner side and the outer side of the brake disc (18), the inner brake block (25) and the outer brake block (30) can respectively slide in a reciprocating mode along the axial direction of the brake disc, the outer brake block (30) is connected with the supporting platform (26) through a connecting rod assembly (9), the movable supporting platform (26) can move in a reciprocating mode along the axial direction of the brake disc (18), and a thrust mechanism is arranged on the movable supporting platform (26) and used for pushing the inner brake block (25) to approach the brake disc.
Description
Technical Field
The invention belongs to simulation experiment equipment, and particularly relates to a simulation actuator of an automobile electronic mechanical brake system.
Background
With the rapid development of automobile intellectualization, the automobile drive-by-wire technology is developed, and has wide application in the whole automobile, and the automobile drive-by-wire technology is a novel control system based on an information interaction system and real-time control. The automobile electronic mechanical brake system is used as a branch of automobile wire control technology to replace the traditional hydraulic and pneumatic brake system, has great difference from the traditional brake system in structural principle and control algorithm, and is a brand new automobile brake concept. The automobile electronic mechanical brake system is preferentially and widely researched in foreign automobile enterprises by virtue of the advantages of energy conservation, environmental protection, quick brake response and the like, the theoretical research, the test platform and the prototype manufacture of the automobile electronic mechanical brake system start late at home, but the automobile electronic mechanical brake system has a considerable breakthrough through the development in recent years. Along with the rapid development of the expressway and the continuous improvement of the speed of vehicles, modern vehicles are required to have higher comfort, safety and stability, which also puts higher demands on the automobile electromechanical brake control technology.
As a novel braking method, the foundation structure of the traditional braking system experiment table is inconsistent with that of the traditional braking system experiment table, and the function is single, so that the use requirement cannot be met, and therefore, the experiment table is required to fully show the composition structure and the working process of the automobile electronic mechanical braking system on the basis of the real automobile electronic mechanical braking system, and the braking force and the response efficiency of the electronic mechanical braking system are conveniently measured.
Disclosure of Invention
The invention aims to provide a simulation actuator of an automobile electronic braking system, which overcomes the defects of the prior art.
In order to solve the technical problems, the invention provides the following technical scheme:
The utility model provides an automobile electronic braking system simulation executor, its structural feature lies in, the simulation executor includes the brake disc and a portable supporting platform of being connected with power output shaft rotation, the inside and outside both sides of brake disc set up interior brake block, outer brake block respectively, interior brake block and outer brake block all can follow the reciprocal slip of rotation brake disc axial, outer brake block passes through link assembly and is connected with supporting platform, portable supporting platform can be along the brake disc axial reciprocating motion be equipped with thrust mechanism on the portable supporting platform, thrust mechanism is used for promoting interior brake block and is close to the brake disc.
Further, the thrust mechanism comprises a torque motor fixed on the movable supporting platform, an output shaft of the torque motor is connected with an input shaft of a speed reducer, an output shaft of the speed reducer is connected with a ball screw of a ball screw pair through a flexible coupling, and a nut of the ball screw pair is fixedly connected with a pressure plate opposite to the inner brake block; the supporting platform can move back and forth along the ball screw auxiliary shaft on the experiment bench.
Furthermore, a caliper body is arranged above the brake disc, the caliper body comprises a pair of sliding beams which are parallel to the axial direction of the brake disc, the inner brake block and the outer brake block are respectively provided with lifting lugs, and the lifting lugs are in sliding lap joint with the sliding beams of the caliper body.
furthermore, the connecting rod assembly comprises a fixed seat fixed with the movable supporting platform and an L-shaped clearance matching body, and the vertical plate of the clearance matching body is embedded between the outer brake block and the side beam of the caliper body and used for shifting the outer brake block.
Further, evenly arranged on the brake disc has the counterweight hole, sets up the brake disc balancing weight of being connected with counterweight hole can be dismantled, realizes the change of brake disc inertial mass through the change of brake disc balancing weight quantity on the brake disc.
Furthermore, the brake disc balancing weight is fixed in a balancing weight hole of the brake disc in an embedded mode through a screw.
Compared with the prior art, the invention has the beneficial effects that:
The invention simulates the brake of the automobile by the electronic brake system simulation actuator, can truly simulate the working process of the electronic mechanical brake system of the automobile, has simple structure, low manufacturing cost, easy implementation and better universality, and is convenient for testing the brake pressure of the electronic mechanical brake system and the brake clearance elimination time of the electronic mechanical brake system.
Drawings
Fig. 1 and fig. 2 are schematic structural diagrams of an automotive electromechanical braking system according to the present invention.
FIG. 3 is a schematic structural diagram of the caliper body and the brake pad portion of the present invention.
Figure 4 is a schematic view of the brake pad structure of the present invention.
FIG. 5 is a schematic view of the construction of the movable connecting rod assembly of the present invention.
Fig. 6 is a schematic structural diagram of an experimental bench of an automobile electromechanical braking system to which the invention is applied.
FIG. 7 is a schematic diagram of a pedal simulator in an experimental bench of an electronic mechanical brake system of an automobile.
Fig. 8 is a schematic view of a brake disc construction of the present invention.
Wherein: 1. the universal wheel 2, the rack 3, the frequency converter 4, the three-phase asynchronous motor 5, the electromagnetic clutch 6, the bearing seat 7, the mass block 8, the side beam 9, the connecting rod assembly 10, the coupling 11, the planetary gear reducer 12, the torque motor 13, the sliding block 14, the guide rail 15, the digital display instrument 16, the control system 17, the analog control power supply 18, the brake disc 19, the ball screw 20, the first support seat 21, the screw nut 22, the pressure disc 23, the second support seat cover 24, the second support seat body 25, the inner brake block 26, the support platform 27, the brake disc counter weight 28, the brake disc counter weight positioning screw 29, the caliper body 30, the outer brake block 31, the first support seat 33, the connecting rod 34, the clearance fit body 35, the fixed assembly 36, the displacement sensor 40, the brake pedal 41, the brake connecting rod 42, the return spring 43, the 45. Rotating arm 46, rocker arm 47, driving arm 48 and stroke sensor
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 6, the experimental bench for the automotive electromechanical braking system applied in the present invention comprises an experimental bench 2, wherein the experimental bench is provided with an electromechanical braking system actuator module, a module for simulating the driving of the automobile, a braking signal acquisition module and a pedal simulator module, the bottom of the experimental bench is provided with a universal wheel 1, and the universal wheel is provided with a caster wheel self-locking device.
The actuator module of the electromechanical brake system of the present invention, see fig. 1 and 2, includes an inner brake pad 25 disposed outside the brake disc 18, a permanent magnet dc brushless torque motor 12, a planetary gear reducer 11, a ball screw 19, a screw nut 21, and a pressure plate 22.
The caliper body 29 is arranged above the brake disc 18, the caliper body 29 comprises a pair of sliding beams which are parallel to the axial direction of the brake disc, the inner brake block 25 and the outer brake block 30 are respectively provided with a lifting lug 31, and the lifting lugs 31 are in sliding lap joint with the sliding beams of the caliper body 29.
The permanent magnet direct current brushless torque motor 12 is driven by the output control voltage of the pedal simulator, the output shaft of the permanent magnet direct current brushless torque motor 12 is connected with the input shaft of the planetary gear reducer 11, the output shaft of the planetary gear reducer 11 is connected with the ball screw pair, wherein the ball screw pair comprises a ball screw 19 and a ball screw pair nut 21, the ball screw pair nut 21 is fixedly connected with the pressure plate 22, and the pressure plate 22 is in contact braking with the inner brake block 25 during braking. Permanent magnetism direct current brushless torque motor 12, planetary gear reducer 11 and ball are vice to be supported by supporting seat one 20 and supporting seat two 24, fix on supporting platform 26, whole supporting platform 26 is fixed on fixed subassembly 35, the bottom of fixed subassembly 35 is equipped with slider 13, be equipped with on test bench rack 2 with slider 13 sliding fit's guide rail 14, supporting platform 26 can follow guide rail horizontal migration on test bench rack 2, this horizontal migration direction is unanimous with brake disc axial direction.
The pedal simulator outputs a control voltage drive, namely, the original voltage output by the stroke sensor 48 of the pedal simulator is processed by the control system to control the motor drive.
referring to fig. 1, 2 and 5, the connecting rod assembly 9 includes a fixing seat 32, a connecting rod 33 and a clearance fit body 34, the fixing seat 32 is fixedly connected to the first supporting seat 20 through a bolt, the second supporting seat includes a second supporting seat body 24 and a second supporting seat cover 23 which are detachably mounted, a limit hole is formed between the second supporting seat body 24 and the second supporting seat cover 23, the connecting rod 33 of the connecting rod assembly penetrates through the limit hole, the clearance fit body 34 is of an L-shaped structure, and a vertical plate of the clearance fit body is embedded into a clearance between the side beam 8 of the caliper body 29 and the outer brake block 30.
During linkage, the actuator module drives the first support seat 20 to move rightwards, and drives the connecting rod assembly to move through the first support seat fixing seat 32, so that the outer brake block 30 is driven to move to realize contact between the outer brake block and the brake disc 18.
Referring to fig. 6 and 8, the simulated automobile driving module in the test bed includes a three-phase asynchronous motor 4, an electromagnetic clutch 5 and a brake disc 18 attached with a brake disc balancing weight 27, the brake disc balancing weight 27 and the brake disc 18 are fixed by a brake disc balancing weight positioning screw 28, the change of the number of the brake disc balancing weights 27 realizes the change of the inertia mass of the brake disc, and the control voltage of the three-phase asynchronous motor 4 can be adjusted by the control system 16 of the simulated control power supply 17 in real time to simulate the change of the rotating speed of the wheel. The brake disc 18 is connected with the speed-regulating frequency converter 3 through the input end of the three-phase asynchronous motor 4, the output shaft is connected with the electromagnetic end of the electromagnetic clutch 5 through a connecting key, the three-phase asynchronous motor 4 and the brake disc 18 are supported on the experiment table through bearings with bearing seats 6 at two ends, and the flange end of the electromagnetic clutch 5 is connected with the central shaft of the brake disc through a connecting key.
In order to accurately simulate the state of an automobile at any running speed, a 1.5KW-220AC variable frequency speed regulator 3 is arranged on a three-phase asynchronous motor, and a relation formula between the frequency value of the variable frequency speed regulator regulated by a control system 16 and the rotating speed of wheels is as follows:
In the formula (1), n is the motor speed, rpm, f is the frequency, and s is the slip ratio, and is generally 0.01-0.02; p is the number of electromagnetic pole pairs of the motor, p is 1 for a two-pole motor, and 2 for a four-pole motor, where 2 is taken.
The frequency f is 50Hz under the normal condition, the normal wheel rotating speed is simulated, and the frequency value can be adjusted to realize the change of the wheel rotating speed according to the requirement of a test working condition object.
Referring to fig. 1, 2 and 6, a braking signal acquisition module in the test bed comprises a digital display instrument 15, a displacement sensor 36(KSC-8mm displacement sensor) and a pressure sensor, wherein the displacement sensor 36 is symmetrically arranged between the inner brake block 25 and the brake block lifting lug 31 of the outer brake block 30, a displacement sensing terminal is tightly close to the back plate of the inner brake block 25, and a bottom terminal is tightly close to the outer brake block 30; the limit boundary beam 8 and the pressure plate 22 act on the inner brake block 25 and the outer brake block 30 together, the displacement sensor 36 is guaranteed to be pre-tightened horizontally, the springs of the displacement sensor 36 act on the four brake block lifting lugs 31, braking return is guaranteed, and the digital display instrument can simultaneously display pressure and displacement value changes at the same moment.
The side surface of the pressure sensor is provided with a threaded hole, the threaded hole is fixedly connected with a corresponding pressure sensor fixing plate through threads, the fixing plate structure is equal to the inner brake block 25 and has a friction braking function, the fixing plate is hung on a caliper body, but the thickness is small, during an experiment, the inner brake block 25 is replaced to be arranged on the inner side of the brake disc 18, the induction pressure head is tightly attached to the outer side of the fixing plate, and the digital display instrument can simultaneously display the pressure and displacement value changes at the same moment.
Referring to fig. 7, the pedal simulator is mainly composed of a transmission portion and a sensing portion, and converts the angle change of the brake pedal 40 around the pedal rotation axis 44 into the voltage change of the stroke sensor 48. The transmission portion includes a brake pedal 40, a brake link 41, a return spring 42, a spring catch 43, and a pedal rotation shaft center 44. The brake pedal 40 is fixedly connected with the brake connecting rod 41 and receives pedal braking force; the return spring 42 is connected with the brake connecting rod 41 through a spring buckle 43, supports the brake connecting rod 41 and provides brake counterforce; the pedal rotation axis 44 is disposed on the base platform, and the brake link 41 is rotatably connected to the pedal rotation axis 44 and can move within a certain angle around the pedal rotation axis 44.
The sensing section includes a rotating arm 45, a rocker arm 46, a driving arm 47, and a stroke sensor 48. The rotating arm is fixedly connected with the rotating axis of the pedal, the rotating arm 45, the rocker arm 46 and the driving arm 47 are sequentially connected by adopting a hinge, and the driving arm is connected with a stroke sensor; the other end of the stroke sensor is fixed on the base platform, and the stroke sensor 48 adopts the resistance sensor principle and is driven by the driving arm 47 to change the resistance value. In the experiment, the brake pedal 40 is changed in angle in proportion to the pedal rotation axis 44, and the voltage of the stroke sensor 48 is calculated as follows:
The relationship between the pedal simulator output voltage and the pedal rotation angle is expressed by the following formula:
In the formula (2), the output voltage of the stroke sensor 48 is theta, the included angle between the initial position of the rotating arm (45) and the vertical direction is theta, a is the length of the rotating arm (45), and U is U 0is the input voltage of the stroke sensor (48), L is the total length of the resistor of the stroke sensor (48), and is the rotation angle of the brake pedal (40).
The working principle of the scheme of the invention is as follows:
During the experiment, the fixing component 35 is moved to a limiting position, the distance between the pressure plate 22 and the inner brake block is about 0.1mm, the power supply of the electromagnetic clutch 5 is connected, the electromagnetic clutch 5 is closed, the brake disc 18 runs under the conditions of the designed rotating speed and the designed load, the output frequency of the frequency converter 3 is adjusted to change the rotating speed of the three-phase asynchronous motor 4 to simulate the running rotating speed of the wheel under the test working condition, the number of the mass blocks 27 on the brake disc 18 is changed to realize the variable simulated design load change of the rotating inertia, and the digital display instrument 15 displays the rotating speed of a.
when the model of the torque motor 12 is J110L YX04A permanent magnet direct current brushless motor and the model of the reducer 11 is NGW planetary gear reduction mechanism and the transmission ratio is 4.3, the model is the mini-automobile, the torque of continuous locked rotor is 3.2N.m at the moment, the transmission ratio is 4.3, and when the torque of continuous locked rotor of the torque motor 12 is more than 3.2N.m and the transmission ratio is 4.3-7.9, the model of the mini-SUV is simulated.
During braking, the electromagnetic clutch 5 is disconnected, and the power connection between the brake disc 18 and the three-phase asynchronous motor 4 is disconnected. The pedal simulator converts the change in the angle of the brake pedal 40 about the pedal rotation axis 44 into a change in the voltage of the stroke sensor 48, which changes in voltage and angle as shown in equation (2).
In this embodiment: theta is 30 DEG, a length is 3cm, U 012V, the total length L of the resistor of the stroke sensor is 12cm, 
Measured by an angle ruler.
The pedal simulator outputs a variable voltage to the control system 16 according to the change of the rotation angle of the pedal, the control system 16 outputs a control voltage to drive the permanent magnet direct current brushless torque motor, the permanent magnet direct current brushless torque motor 12 outputs a variable torque under the variable voltage, after the speed reduction and the torque increase of the planetary gear reducer 11, the ball screw pair is used as a motion conversion device to convert the large torque transmitted by the planetary gear reducer 11 into the variable axial thrust of the screw nut 21 to push the inner brake block 25 to move towards the brake disc 18, when the inner brake block 25 is in contact with the brake disc 18 to generate a contact force, the contact force acts on the ball screw pair to generate a reaction force, the permanent magnet direct current brushless torque motor 12, the planetary gear reducer 11 and the ball screw pair are installed on the supporting platform 26, the supporting platform 26 moves away from the brake disc 18 along the guide rail 14 under the reaction force, because the brake connecting rod assembly is fixedly connected with the first supporting seat 20, the clearance fit body of the brake connecting rod assembly drives the outer brake block 30 to move towards the brake disc 18, and when the inner brake block 25 and the outer brake block 30 are both contacted with the brake disc 18, variable brake pressure is generated until braking is finished.
The digital display instrument 15 monitors the pedal output voltage, the pedal rotation angle change, the braking pressure value, the displacement sensor change value and the time information thereof in real time, calculates the braking clamping force and the braking clearance elimination time according to the pedal rotation angle change, and reflects the braking effect of the brake actuator by comparing with the braking regulation.
The test method and test result analysis of the test bench of the system of the invention are further provided below
(1) Test method
The automobile brake disc 18 attached with the balancing weight 27 is driven to run by the three-phase asynchronous alternating current motor 4 to simulate the actual running process of the whole automobile, the three-phase asynchronous alternating current motor 4 is connected with the automobile brake disc 18 through the electromagnetic clutch 5, and the connection and disconnection of the three-phase asynchronous alternating current motor 4 and the automobile brake disc 18 are realized by controlling the on-off of the current of the electromagnetic clutch 5. The torque motor 12 is controlled by changing the angle of the brake pedal 40 of the pedal simulator, and the relationship between the output voltage and the angle of the brake pedal 40 is shown in equation (2). The digital display instrument displays the voltage value output by the brake pedal simulator, the pressure sensor and the displacement sensor value in real time,
(2) Brake pressure test
In the test, the supporting platform is fixed on the guide rail 14, so that the system actuator and the test bed bracket do not slide relatively. During braking, the pressure plate 22 acts directly on the pressure head of the pressure sensor.
The angles of the brake pedal 40 are respectively controlled, voltage values of 2V, 4V, 6V, 8V, 10V and 12V are applied to the torque motor, and the display values of the pressure sensors are recorded, as shown in Table 1.
TABLE 1 comparison of experimental values of brake clamping force with theoretical and simulated values
The experimental value of the braking clamping force is not greatly different from the theoretical value and the simulated value, which shows that the experimental design completely meets the use requirement of the braking force test. Under the three conditions, the brake clamping force is increased along with the increase of the locked-rotor voltage and approximately changes in a direct proportion, and the advantage that the braking force can be adjusted by adjusting the voltage of the electromechanical brake system is also achieved. The experimental value is slightly small and is mainly influenced by factors such as installation errors in the test process, mechanical characteristics of the motor and external complex environmental conditions.
The theoretical values in table 1 were calculated from the mechanical mechanics knowledge according to the torque motor, reducer and lead screw nut structures shown in fig. 2; simulation values were analyzed by ADAMS simulation modeling.
(3) Brake clearance elimination time test
The system actuator module is divided into two processes of starting the motor to the maximum no-load rotating speed and uniformly operating the motor at the stage of eliminating the brake clearance. Because the time for eliminating the brake clearance is very short, the clearance between the brake block of the automobile and one side of the brake disc is 0.1mm, the total brake clearance is 0.2mm, and the accurate setting of 0.1mm on the two sides of the brake disc is difficult, so the original clearance is set to be 2.5mm, and the clearance between the inner side and the outer side is 5mm totally.
The test procedure was as follows:
1) According to the braking requirement of the small automobile, a torque motor 12 and a speed reducer 11 are installed and fixed;
2) Fixing the sliding block 13 on the guide rail 14 to ensure that the actuator and the test bed bracket can slide relatively;
3) Arranging two displacement sensors 36 between the inner brake block 25 and the outer brake block 30, replacing the inner brake block 25 with a pressure sensor fixing plate provided with the pressure sensors, hanging the pressure sensor fixing plate on the caliper body 29 through a lifting lug of the pressure sensor fixing plate, and installing and fixing the connecting rod assembly 9;
4) According to the requirement of the test working condition, the weight block 27 of the brake disc is increased or decreased in the brake disc 18;
5) Switching on a power supply, adjusting the frequency converter 3, controlling the motor 4 to rotate, switching on the power supply of the electromagnetic clutch 5, closing the electromagnetic clutch 5 and driving the brake disc 18 to rotate;
6) The angle of the pedal simulator 40 is changed, the torque motor 12 is driven to work, and braking is achieved. Observing the output voltage value of the stroke sensor 48 on the digital display instrument, measuring the angle change of the pedal 40 by using a goniometer when the voltage values are 2V, 4V, 6V, 8V, 10V and 12V, reading the output value of the pressure sensor and recording the output value in the table 1;
7) Observing the output voltage value of the stroke sensor 48 on the digital display instrument, the displacement variation of the displacement sensor 36 and the time variation of the brake block, and starting to record time when the pressure plate 22 contacts the pressure sensor; when the displacement sensors 36 are shown as 2mm, 3mm, 4mm and 5mm, the time is recorded in table 2, and the brake pad operating speed is calculated according to the time-displacement equation and recorded in table 2.
8) The power supply was cut off and the test was ended.
TABLE 2 Displacement sensor measurement data
According to the experimental result, the maximum speed of the brake block in constant speed operation at the stage of eliminating the brake clearance is 2.53mm/s, and the use requirement of the brake regulation of 2mm/s is met. According to the test report provided by the torque motor manufacturer, when the torque motor of the type operates to the maximum no-load rotating speed response time of 0.04s, and the moving distance of the brake block in the response time period is about 0.05mm, the brake clearance eliminating time of the actuator of the automobile electronic mechanical brake system is about 0.10s, and the use requirement of the brake regulation clearance eliminating time of 0.05-0.15s is met.
The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The automobile electronic brake system simulation actuator is characterized by comprising a brake disc (18) rotationally connected with a power output shaft and a movable supporting platform (26), wherein an inner brake block (25) and an outer brake block (30) are respectively arranged on the inner side and the outer side of the brake disc (18), the inner brake block (25) and the outer brake block (30) can respectively slide back and forth along the axial direction of the rotating brake disc, the outer brake block (30) is connected with the movable supporting platform (26) through a connecting rod assembly (9), the movable supporting platform (26) can reciprocate back and forth along the axial direction of the brake disc (18), and a thrust mechanism is arranged on the movable supporting platform (26) and used for pushing the inner brake block (25) to approach the brake disc;
The thrust mechanism comprises a torque motor (12) fixed on a movable supporting platform (26), an output shaft of the torque motor (12) is connected with an input shaft of a speed reducer (11), an output shaft of the speed reducer (11) is connected with a ball screw (19) of a ball screw pair through a flexible coupling (10), and a nut (21) of the ball screw pair is fixedly connected with a pressure plate (22) opposite to an inner brake block (25); the movable supporting platform (26) can move back and forth along the ball screw auxiliary shaft on the experiment bench (2);
A caliper body (29) is arranged above the brake disc (18), the caliper body (29) comprises a pair of sliding beams which are parallel to the axial direction of the brake disc, the inner brake block (25) and the outer brake block (30) are respectively provided with a lifting lug (31), and the lifting lugs (31) are in sliding lap joint with the sliding beams of the caliper body (29);
the connecting rod assembly (9) comprises a fixed seat (32) fixed with the movable supporting platform (26) and an L-shaped clearance fit body (34), and a vertical plate of the clearance fit body is embedded between the outer brake block (30) and the edge beam of the caliper body (29) and used for shifting the outer brake block (30).
2. The simulation actuator of an automobile electronic braking system according to claim 1, wherein the brake disc (18) is uniformly provided with counterweight holes, and a brake disc counterweight (27) detachably connected with the counterweight holes is arranged, so that the change of the inertia mass of the brake disc is realized through the change of the number of the brake disc counterweight (27) on the brake disc (18).
3. The automotive electric brake system simulation actuator according to claim 2, characterized in that the brake disc counterweight (27) is fixed in a counterweight hole of the brake disc (18) by means of screw insertion.
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| CN107314906B (en) * | 2017-08-11 | 2019-09-20 | 安徽理工大学 | A kind of automobile electro-mechanical brake system experimental bench |
| CN108120606B (en) * | 2018-01-29 | 2019-04-05 | 吉林大学 | Commercial vehicle electric brake system hardware-in-the-loop test platform and test method based on PXI and cRIO controller |
| CN113640009A (en) * | 2021-07-16 | 2021-11-12 | 一汽奔腾轿车有限公司 | Electronic hydraulic brake system testing device |
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| US7353101B2 (en) * | 2006-04-18 | 2008-04-01 | Honeywell International Inc. | Methods and apparatus to control electro-mechanical brakes |
| CN101561353B (en) * | 2009-05-21 | 2010-10-13 | 吉林大学 | Brake-by-wire and steer-by-wire hardware-in-the-loop test bench for vehicle |
| CN101561354B (en) * | 2009-05-21 | 2011-01-12 | 吉林大学 | Hardware-in-the-loop test bench based on electromechanical braking system |
| JP6117633B2 (en) * | 2013-06-25 | 2017-04-19 | 株式会社日立ビルシステム | Brake mechanism inspection device for elevators |
| CN206990223U (en) * | 2017-08-11 | 2018-02-09 | 安徽理工大学 | A kind of automotive electronics brakes simulation executing |
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| Title |
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| 电子机械制动***（EMB）试验台的开发;张猛;《中国优秀硕士学位论文全文数据库（硕士） 工程科技Ⅱ辑》;20050715(第3期);第13-27页 * |
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