CN112413008B - Electric brake for vehicle active safety test target vehicle carrying platform - Google Patents
Electric brake for vehicle active safety test target vehicle carrying platform Download PDFInfo
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- CN112413008B CN112413008B CN202011294759.7A CN202011294759A CN112413008B CN 112413008 B CN112413008 B CN 112413008B CN 202011294759 A CN202011294759 A CN 202011294759A CN 112413008 B CN112413008 B CN 112413008B
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- brake
- plunger
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- spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
- F16D55/228—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a separate actuating member for each side
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
- F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
- F16D66/021—Apparatus for indicating wear using electrical detection or indication means
- F16D66/022—Apparatus for indicating wear using electrical detection or indication means indicating that a lining is worn to minimum allowable thickness
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D2065/386—Slack adjusters driven electrically
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/14—Mechanical
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
- F16D2121/24—Electric or magnetic using motors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention relates to an electric brake for a vehicle active safety test target vehicle carrying platform, which comprises a brake, a wheel hub and two stepping motors, wherein the brake comprises a brake disc, a return spring and braking force conversion assemblies symmetrically arranged on two sides of the brake disc, each braking force conversion assembly comprises a friction plate, a plunger, an elastic part, a spring seat, a plunger cylinder and a cam which are sequentially arranged along the direction far away from the brake disc, two ends of the return spring are respectively and fixedly connected with the friction plates on two sides of the brake disc, output shafts of the two stepping motors are respectively and fixedly connected with the cams on two sides of the brake disc, a rotating shaft of the wheel penetrates through the wheel hub and is fixedly connected with the brake disc, and the plunger cylinder is fixedly connected with the wheel hub. Compared with the prior art, the system is simple and compact in structure, and the reliability of the system is improved by adopting the redundancy and compensation design of the double-step motor.
Description
Technical Field
The invention relates to an electric brake, in particular to an electric brake for a vehicle carrying platform of an automobile active safety test target vehicle.
Background
The automobile active safety test generally detects the perception capability of a tested vehicle to a traffic target, the processing capability to an emergency and the capability of vehicle-vehicle and vehicle-road cooperative interaction. In order to ensure the safety of testing personnel and equipment in the test, the active safety test target vehicle adopts soft materials such as foam materials or fabrics and the like, and has the capability of autonomously moving and simulating the free motion of vehicles in a real road environment. In the active safety test, the target vehicle may be impacted and rolled by the test vehicle at high speed during running, and the vehicle is not damaged or turned over during collision and rolling, so the height of the carrying platform is generally not more than 100 mm. From the perspective of test safety, the active safety test target car carrying platform needs to meet the requirements of ultrathin structures, high structural strength and the like.
The common braking system usually adopts mechanisms such as electro-hydraulic mechanisms, mechanical connecting rods, pull wires and the like, has more system components and large occupied space, and is difficult to meet the requirement of the vehicle on the compactness of the target vehicle for the active safety test. For example, the electric power-assisted brake system disclosed in chinese patent CN110155013B, which is integrated with a motor power-assisted system and a hydraulic power-assisted system for realizing active braking and failure backup, has many system components, a large mechanism size, and complicated control, and does not consider how to compensate the braking force after the friction plate is worn, how to wear the friction plate, and how to design the braking force redundancy.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an electric brake for an automobile active safety test target vehicle carrying platform.
The purpose of the invention can be realized by the following technical scheme:
an electric brake for a vehicle active safety test target vehicle carrying platform comprises a brake, a wheel hub and two stepping motors, wherein the brake comprises a brake disc, a return spring and brake force conversion assemblies symmetrically arranged on two sides of the brake disc, each brake force conversion assembly comprises friction plates, a plunger, an elastic part, a spring seat, a plunger cylinder and a cam which are sequentially arranged along the direction away from the brake disc, one side of each friction plate is abutted against the brake disc, the other side of each friction plate is abutted against the side surface of the plunger, the plunger is arranged in the plunger cylinder, a spring cavity is formed between the plunger and the plunger cylinder, the spring seat is arranged in the spring cavity, the elastic part is arranged between the spring seat and the plunger, a cam window is arranged on the side surface of the plunger cylinder away from the brake disc, the cam is abutted against the side surface of the spring seat through the cam window, and two ends of the return spring are respectively fixedly connected with the friction plates on two sides of the brake disc, the output shafts of the two stepping motors are respectively fixedly connected with the cams at two sides of the brake disc, the rotating shafts of the wheels penetrate through the wheel hub to be fixedly connected with the brake disc, and the plunger cylinder is fixedly connected with the wheel hub.
Preferably, the friction plate comprises a lining and a friction plate main body, the lining is fixedly connected with the friction plate main body, the side surface of the friction plate main body is abutted against the brake disc, the side surface of the lining is abutted against the side surface of the plunger, and two ends of the return spring are respectively fixedly connected with the lining of the friction plate on two sides of the brake disc.
Preferably, the elastic member is a disc spring.
Preferably, the spring seat is T-shaped, a through hole is formed in the middle of the plunger, the spring seat is inserted into the plunger, and the elastic member is arranged between the side surface of the spring seat and the side surface of the plunger.
Preferably, the elastic member is a spring with a rectangular section.
Preferably, the spring holder be the type of falling U, the plunger be the type of U, the elastic component locate between spring holder and plunger.
Preferably, the stepping motor is a planetary speed reduction stepping motor.
Preferably, the cam is a sinusoidal profile cam.
Preferably, the electric brake further comprises a controller connected to the two stepping motors respectively.
Preferably, the stepping motor comprises a motor driver and a motor main body, and the motor driver is connected with the controller.
Preferably, the controller is a feedforward PID brake controller, the controller and the motor driver are communicated through a CAN bus, and the controller has multi-node expansion capability. When the electric brake brakes, the controller calculates the target step pitch of the stepping motor according to the difference value between the target speed and the actual speed; in order to improve the response speed of the stepping motor, an error differential feedforward link is added, the step pitch of the stepping motor is compensated according to the change rate of the error, the controller judges the abrasion degree of the friction plate according to the relation between the step pitch of the stepping motor and the braking strength, and the controller applies compensation to the initial position and the target step pitch of the stepping motor, so that the stability of the braking force in the whole life cycle of the electric brake is ensured. When the step distance reaches the stroke limit and still cannot reach the designed braking strength, the controller sends alarm information to prompt the replacement of the friction plate.
Compared with the prior art, the invention has the following advantages:
(1) according to the invention, two stepping motors are used as power sources of the electric brake, two stepping motor assemblies are respectively arranged at two ends of the brake disc, a double-acting brake configuration is realized in a compact structure, the braking efficiency is improved, the double-acting configuration can avoid the friction plate of the single-acting brake from being worn partially, the service life of the brake is prolonged, when one stepping motor fails, the other stepping motor can still provide braking force, and the safety performance of the brake is improved by a redundancy design;
(2) the braking force conversion assembly of the electric brake adopts the friction plate, the plunger, the elastic part, the spring seat, the plunger cylinder and the cam which are sequentially arranged along the direction away from the brake disc, the cam is utilized to convert the rotation of the stepping motor into the pressure to the spring seat, and the spring seat sequentially applies force to the friction plate through the elastic part and the plunger, so that the brake is realized, the structure is compact and efficient, and the problems of overlong transmission link, large structure size, difficult arrangement and the like of mechanisms such as hydraulic pressure, a connecting rod and the like are avoided;
(3) the stepping motor is controlled by the controller respectively, so that the response speed of the stepping motor can be increased, the abrasion degree of the friction plate can be acquired, the alarm can be given, and the braking effect can be improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the stopper of the present invention when the elastic member is a disc spring;
FIG. 4 is a schematic structural diagram of the brake when the elastic member is a spring with a rectangular cross section according to the present invention;
FIG. 5 is a schematic view of a partial structure of a friction plate and a brake pad of the present invention.
The brake comprises a stepping motor 1, a stepping motor 2, a hub 3, a brake disc 4, a brake 5, a cam 6, a wheel 7, a lining 8, a friction plate main body 9, a cam window 4-1, a spring seat 4-2, a plunger cylinder 4-3, an elastic piece 4-4, a plunger 4-5, a return spring 4-6 and a friction plate.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. Note that the following description of the embodiments is merely a substantial example, and the present invention is not intended to be limited to the application or the use thereof, and is not limited to the following embodiments.
Examples
An electric brake for a vehicle carrying platform of an automobile active safety test target vehicle comprises a brake 4, a wheel 6, a hub 2 and two stepping motors 1, wherein the brake 4 comprises a brake disc 3, return springs 4-5 and brake force conversion assemblies symmetrically arranged at two sides of the brake disc 3, each brake force conversion assembly comprises a friction plate 4-6, a plunger 4-4, an elastic part 4-3, a spring seat 4-1, a plunger cylinder 4-2 and a cam 5 which are sequentially arranged along the direction far away from the brake disc 3, one side of each friction plate 4-6 is abutted against the brake disc 3, the other side of each friction plate 4-6 is abutted against the side face of the plunger 4-4, the plunger 4-4 is arranged in the plunger cylinder 4-2, a spring cavity is formed between the plunger 4-4 and the plunger cylinder 4-2, and the spring seat 4-1 is arranged in the spring cavity, the elastic part 4-3 is arranged between the spring seat 4-1 and the plunger 4-4, the side surface of the plunger cylinder 4-2, which is far away from the brake disc 3, is provided with a cam window 9, the cam 5 is abutted against the side surface of the spring seat 4-1 through the cam window 9, two ends of the return spring 4-5 are respectively and fixedly connected with friction plates 4-6 on two sides of the brake disc 3, output shafts of the two stepping motors 1 are respectively and fixedly connected with the cam 5 on two sides of the brake disc 3, a rotating shaft of the wheel 6 penetrates through the hub 2 to be fixedly connected with the brake disc 3, and the plunger cylinder 4-2 is fixedly connected with the hub 2.
Specifically, as shown in fig. 5, with the structure of the friction plates 4-6, the friction plates 4-6 include linings 7 and friction plate main bodies 8, the linings 7 are fixedly connected with the friction plate main bodies 8, the side surfaces of the friction plate main bodies 8 abut against the brake disc 3, the side surfaces of the linings 7 abut against the side surfaces of the plungers 4-4, and both ends of the return springs 4-5 are fixedly connected with the linings 7 of the friction plates 4-6 on both sides of the brake disc 3, respectively.
In an embodiment of the present invention, as shown in fig. 3, the elastic member 4-3 is a disc spring, and correspondingly, the spring seat 4-1 is T-shaped, a through hole is formed in the middle of the plunger 4-4, the spring seat 4-1 is inserted into the plunger 4-4, and the elastic member 4-3 is disposed between the side surface of the spring seat 4-1 and the side surface of the plunger 4-4.
In one embodiment of the present invention, as shown in fig. 4, the elastic member 4-3 is a spring with a rectangular cross section, and correspondingly, the spring seat 4-1 is in an inverted U shape, the plunger 4-4 is in a U shape, and the elastic member 4-3 is disposed between the spring seat 4-1 and the plunger 4-4.
Specifically, in this embodiment, the stepping motor 1 is a planetary reduction stepping motor, the cam 5 is a sinusoidal profile cam, the electric brake 4 further includes controllers respectively connected to the two stepping motors 1, the stepping motor 1 includes a motor driver and a motor main body, and the motor driver is connected to the controllers.
The experimental conditions of the vehicle active safety test target vehicle carrying platform are severe, the brake of the active safety test target vehicle carrying platform has higher requirements, and the brake of the vehicle active safety test target vehicle carrying platform needs to meet the following system and structure requirements for comprehensively meeting the structure and performance requirements of the carrying platform:
1. the structure is compact, and in an ultrathin carrying platform, a flat structure is required to meet the requirement of the ultimate braking force, and meanwhile, the space is occupied as little as possible;
2. after the friction plates of the brake are worn, a mechanical and control system of the brake needs to automatically compensate braking force according to the wear condition of the friction plates, so that the stability of the brake is ensured;
3. the redundant design needs the redundant system to continue working to provide safe braking force when some parts in the braking system have faults.
The electric brake disclosed by the invention solves the comprehensive challenges in the aspects of compactness of a target vehicle carrying platform, braking reliability and the like in the active safety test of an automobile. The electric brake adopts a planetary speed-reducing stepping motor as a power source, the rotary motion is converted into linear motion at the cam 5, the brake 4 is directly driven to generate braking force, a dual-motor redundancy configuration is adopted, the stepping motors 1 work independently, and the braking force output is ensured when one stepping motor 1 fails; the stepping motor 1 can accurately control the stroke, ensures the cooperative consistency of actuation, has few intermediate links of braking force transmission, and has the advantages of high efficiency, compactness, reliability and the like.
The brake 4 pushes the spring seat 4-1 through the rotation of the cam 5, the elastic part 4-3 is compressed, spring force is generated to act on the plunger 4-4, finally acting force is transmitted to the friction plate 4-6, the stepping motors 1 are horizontally arranged in parallel, and the size in the vertical direction is flat; the two sets of braking force conversion assemblies are respectively arranged on two sides of the brake disc 3, and the positive pressures of the two plunger cylinders 4-2 are symmetrical, so that the additional bending moment and the partial abrasion of the friction plates 4-6 caused by the unilateral stress of the brake disc 3 are eliminated.
When the elastic part 4-3 is a disc spring, the cam 5 adopts a sinusoidal cam profile, and the spring seat 4-1 moves faster when the elastic part starts to act, so that the positive pressure of the spring can be quickly established. The disc spring is used as a medium for transmitting driving force, deformation is generated under the pushing of the spring seat 4-1, and when the stroke of the highest point of the profile of the cam 5 is smaller than the maximum stroke of the disc spring, the damage of the stepping motor 1 caused by rotation blockage can be avoided. The disc spring can generate huge spring force under the condition of tiny deformation, so the peak value of the profile of the cam 5 can be designed to be a small value, and the torque requirement of the end of the stepping motor 1 is reduced; and a small step distance can generate a large positive pressure, so that the response time of the brake 4 is reduced. The stepping motor 1 returns, the disc spring is released, and the return spring 4-5 pushes the plunger 4-4 to return to enable the brake disc 3 to restore to rotate freely.
When the elastic piece 4-3 is a spring with a rectangular section, the brake 4 pushes the spring seat 4-1 through the rotation of the cam 5, the spring with the rectangular section is compressed, spring force is generated to act on the plunger 4-4, and finally acting force is transmitted to the friction plate 4-6. Under the working condition of long-time and high-strength braking, the abrasion loss of the friction plates 4-6 cannot be ignored. Compared with the disc spring configuration, the spring configuration with the rectangular cross section has the advantages that the spring force is basically consistent, and the spring stroke is increased. In order to obtain the same braking efficiency, the controller applies abrasion compensation control to increase the stepping amount and ensure the stability of the braking efficiency.
The controller is a feedforward PID brake controller, the controller and the motor driver are communicated through a CAN bus, and the multi-node expansion capability is achieved. When the electric brake brakes, the controller calculates the target step pitch of the stepping motor 1 according to the difference value between the target speed and the actual speed; in order to improve the response speed of the stepping motor 1 and increase an error differential feedforward link, the step pitch of the stepping motor 1 is compensated according to the change rate of the error, the controller judges the abrasion degree of the friction plates 4-6 according to the relation between the step pitch of the stepping motor 1 and the braking strength, and compensates the initial position and the target step pitch of the stepping motor 1, so that the stability of the braking force in the whole life cycle of the electric brake is ensured. When the step distance reaches the stroke limit and still cannot reach the designed braking strength, the controller sends alarm information to prompt the replacement of the friction plates 4-6.
The above embodiments are merely examples and do not limit the scope of the present invention. These embodiments may be implemented in other various manners, and various omissions, substitutions, and changes may be made without departing from the scope of the technical idea of the present invention.
Claims (8)
1. An electric brake for a vehicle carrying platform of an automobile active safety test target vehicle is characterized by comprising a brake (4), wheels (6), a wheel hub (2) and two stepping motors (1),
the brake (4) comprises a brake disc (3), a return spring (4-5) and brake force conversion assemblies symmetrically arranged on two sides of the brake disc (3), wherein each brake force conversion assembly comprises a friction plate (4-6), a plunger (4-4), an elastic piece (4-3), a spring seat (4-1), a plunger cylinder (4-2) and a cam (5) which are sequentially arranged along the direction away from the brake disc (3), one side of each friction plate (4-6) is abutted against the brake disc (3), the other side of each friction plate is abutted against the side face of the plunger (4-4), the plunger (4-4) is arranged in the plunger cylinder (4-2), a spring cavity is formed between the plunger (4-4) and the plunger cylinder (4-2), and the spring seat (4-1) is arranged in the spring cavity, the elastic piece (4-3) is arranged between the spring seat (4-1) and the plunger (4-4), the side surface of the plunger cylinder (4-2) far away from the brake disc (3) is provided with a cam window (9), the cam (5) is propped against the side surface of the spring seat (4-1) through the cam window (9), two ends of the return spring (4-5) are respectively and fixedly connected with the friction plates (4-6) on two sides of the brake disc (3),
the output shafts of the two stepping motors (1) are respectively fixedly connected with cams (5) at two sides of a brake disc (3), the rotating shaft of a wheel (6) penetrates through a wheel hub (2) to be fixedly connected with the brake disc (3), a plunger cylinder (4-2) is fixedly connected with the wheel hub (2),
the stepping motor (1) is a planetary speed-reducing stepping motor,
the cam (5) is a sine profile cam.
2. The electric brake for the target vehicle carrying platform for the active safety test of the automobile according to claim 1, wherein the friction plates (4-6) comprise linings (7) and a friction plate main body (8), the linings (7) are fixedly connected with the friction plate main body (8), the side surfaces of the friction plate main body (8) are abutted against the brake disc (3), the side surfaces of the linings (7) are abutted against the side surfaces of the plungers (4-4), and both ends of the return springs (4-5) are fixedly connected with the linings (7) of the friction plates (4-6) on both sides of the brake disc (3), respectively.
3. The electric brake for the vehicle carrier platform of the vehicle active safety test target vehicle as claimed in claim 1, wherein the elastic member (4-3) is a disc spring.
4. The electric brake of claim 3, wherein the spring seat (4-1) is T-shaped, the plunger (4-4) is provided with a through hole in the middle, the spring seat (4-1) is inserted into the plunger (4-4), and the elastic member (4-3) is arranged between the side surface of the spring seat (4-1) and the side surface of the plunger (4-4).
5. The electric brake for the vehicle carrying platform of the vehicle active safety test target according to claim 1, wherein the elastic member (4-3) is a spring with a rectangular section.
6. The electric brake for the vehicle carrying platform of the target vehicle for the active safety test of the vehicle as claimed in claim 5, wherein the spring seat (4-1) is of an inverted U shape, the plunger (4-4) is of a U shape, and the elastic member (4-3) is disposed between the spring seat (4-1) and the plunger (4-4).
7. The electric brake for the vehicle carrying platform of the vehicle target for the active safety test of the vehicle according to claim 1, wherein the electric brake (4) further comprises a controller respectively connected with the two stepping motors (1).
8. The electric brake for the vehicle carrier platform of the automobile active safety test target vehicle as claimed in claim 7, wherein the stepping motor (1) comprises a motor driver and a motor body, and the motor driver is connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011294759.7A CN112413008B (en) | 2020-11-18 | 2020-11-18 | Electric brake for vehicle active safety test target vehicle carrying platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011294759.7A CN112413008B (en) | 2020-11-18 | 2020-11-18 | Electric brake for vehicle active safety test target vehicle carrying platform |
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| Publication Number | Publication Date |
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| CN112413008A CN112413008A (en) | 2021-02-26 |
| CN112413008B true CN112413008B (en) | 2022-06-21 |
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| CN202011294759.7A Active CN112413008B (en) | 2020-11-18 | 2020-11-18 | Electric brake for vehicle active safety test target vehicle carrying platform |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114876983B (en) * | 2022-04-26 | 2024-05-17 | 华为电动技术有限公司 | Braking mechanism, mechanical brake, electromechanical braking system and vehicle |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2239067A (en) * | 1989-12-15 | 1991-06-19 | Perrot Bremse Gmbh Deutsche | Sliding caliper disc brake with automatic adjustment means for wear compensation |
| KR20070062311A (en) * | 2005-12-12 | 2007-06-15 | 기아자동차주식회사 | Structure of motor driving brake for vehicle |
| JP2015124794A (en) * | 2013-12-25 | 2015-07-06 | 曙ブレーキ工業株式会社 | Disc brake device |
| CN204915652U (en) * | 2015-05-29 | 2015-12-30 | 林逢传 | Caliper with foot brake and hand brake functions |
| KR20160143928A (en) * | 2015-06-04 | 2016-12-15 | 주식회사 포스코 | Braking apparatus and braking system for shaft with same |
| CN106347339A (en) * | 2016-10-28 | 2017-01-25 | 江苏理工学院 | Self power supply type double-motor brake execution mechanism of automobile electro-mechanical brake system |
| CN107269741A (en) * | 2017-07-28 | 2017-10-20 | 江苏理工学院 | A kind of brake system of car of use electric operator |
| CN108162943A (en) * | 2018-02-06 | 2018-06-15 | 吉林大学 | The compound line control brake system and its brake control method of four-wheel pressure independent control |
| CN109424670A (en) * | 2017-08-29 | 2019-03-05 | 比亚迪股份有限公司 | Disk brake and vehicle |
| CN210254990U (en) * | 2019-08-23 | 2020-04-07 | 武汉合众达汽车装备有限公司 | Piston press-in device of brake caliper assembly assembling and detecting production line |
| CN211624006U (en) * | 2019-12-30 | 2020-10-02 | 武汉万向汽车制动器有限公司 | Friction plate active return mechanism |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9711617D0 (en) * | 1997-06-06 | 1997-07-30 | Lucas Ind Plc | Improvements relating to disc brake assemblies |
| CA2323817A1 (en) * | 2000-10-18 | 2002-04-18 | New Tech Brake Inc./Frein Newtech Inc. | Disc brake for heavy road vehicles |
| JP6599806B2 (en) * | 2015-08-06 | 2019-10-30 | 曙ブレーキ工業株式会社 | Wedge cam brake |
| CN110816504B (en) * | 2019-11-05 | 2024-06-11 | 南京经纬达汽车科技有限公司 | Plunger pump type distributed autonomous braking system |
| CN211314928U (en) * | 2019-12-27 | 2020-08-21 | 湖北科技学院 | Vehicle braking system with automatic braking clearance compensation function |
-
2020
- 2020-11-18 CN CN202011294759.7A patent/CN112413008B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2239067A (en) * | 1989-12-15 | 1991-06-19 | Perrot Bremse Gmbh Deutsche | Sliding caliper disc brake with automatic adjustment means for wear compensation |
| KR20070062311A (en) * | 2005-12-12 | 2007-06-15 | 기아자동차주식회사 | Structure of motor driving brake for vehicle |
| JP2015124794A (en) * | 2013-12-25 | 2015-07-06 | 曙ブレーキ工業株式会社 | Disc brake device |
| CN204915652U (en) * | 2015-05-29 | 2015-12-30 | 林逢传 | Caliper with foot brake and hand brake functions |
| KR20160143928A (en) * | 2015-06-04 | 2016-12-15 | 주식회사 포스코 | Braking apparatus and braking system for shaft with same |
| CN106347339A (en) * | 2016-10-28 | 2017-01-25 | 江苏理工学院 | Self power supply type double-motor brake execution mechanism of automobile electro-mechanical brake system |
| CN107269741A (en) * | 2017-07-28 | 2017-10-20 | 江苏理工学院 | A kind of brake system of car of use electric operator |
| CN109424670A (en) * | 2017-08-29 | 2019-03-05 | 比亚迪股份有限公司 | Disk brake and vehicle |
| CN108162943A (en) * | 2018-02-06 | 2018-06-15 | 吉林大学 | The compound line control brake system and its brake control method of four-wheel pressure independent control |
| CN210254990U (en) * | 2019-08-23 | 2020-04-07 | 武汉合众达汽车装备有限公司 | Piston press-in device of brake caliper assembly assembling and detecting production line |
| CN211624006U (en) * | 2019-12-30 | 2020-10-02 | 武汉万向汽车制动器有限公司 | Friction plate active return mechanism |
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