CN116946091A - Bidirectional propulsion type electromechanical brake device for unmanned automobile - Google Patents
Bidirectional propulsion type electromechanical brake device for unmanned automobile Download PDFInfo
- Publication number
- CN116946091A CN116946091A CN202210378722.5A CN202210378722A CN116946091A CN 116946091 A CN116946091 A CN 116946091A CN 202210378722 A CN202210378722 A CN 202210378722A CN 116946091 A CN116946091 A CN 116946091A
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- Prior art keywords
- brake
- connecting rod
- gear
- shell top
- braking
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- 230000002457 bidirectional effect Effects 0.000 title abstract description 9
- 238000006073 displacement reaction Methods 0.000 claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 16
- 230000006835 compression Effects 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 15
- 230000009471 action Effects 0.000 claims description 9
- 230000006870 function Effects 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 6
- 230000004044 response Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
- B60T13/741—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on an ultimate actuator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/065—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels employing disc
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
- B60T13/746—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive and mechanical transmission of the braking action
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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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a bidirectional propulsion type electronic mechanical brake device of an unmanned automobile, which consists of a motor, a movable shell top, a connecting rod mechanism, a worm wheel, a worm, a gear A, a gear B, a brake disc, a brake block, a ratchet bar device, an automobile electronic control unit, a displacement sensor and the like. The movable shell top comprises a matched guide rail, a guide pin and a displacement sensor, wherein the matched guide rail and the guide pin are used for limiting the relative movement of the movable shell top and the brake caliper; after the torque output by the motor is subjected to worm gear and worm gear speed reduction and distance increase, the rotation motion of the gear B around the shaft is converted into the rotation motion of the connecting rod, and the shell jack moves to conduct linear motion in the direction opposite to the direction of the brake caliper while the brake caliper moves linearly, so that brake blocks positioned on two sides of the brake disc are pressed against the brake disc, and braking is achieved. The device has the advantages of rapid braking response, large braking force, simple overall structure, easy installation and capability of realizing the parking function by the internal ratchet bar device.
Description
Technical Field
The invention relates to an unmanned automobile braking system technology, in particular to an automobile electronic mechanical braking device.
Background
The unmanned automobile technology is a hot field in the current automobile field, the unmanned automobile is an intelligent automobile, the surrounding environment of the automobile is perceived through a radar sensor, a visual sensor and the like, then perception information and data are transmitted to a central processing unit, and after the central computing center fuses information such as perception, positioning and the like, the planning decision-making execution module is used for controlling the automobile to finish, and finally safe running of the automobile is guaranteed.
In the running process of the unmanned automobile, the brake system plays a key role, and the brake is an executing device of the whole brake system. Most unmanned automobiles use hydraulic braking at present, but hydraulic braking is difficult to operate and has small braking force, and the phenomenon of vaporization of brake fluid can occur when the braking is continuously performed for a long time, so that the braking effect is seriously affected. In the future, the electromechanical brake system can be widely applied in the unmanned field, but the existing electromechanical brake device generally has the problem of insufficient braking force, so the electromechanical brake device which has the advantages of simple structure, easy installation, quick response, large braking force, safety and reliability is designed.
Chinese patent grant publication No. CN214304948U discloses a "toggle-lever-boosting electromechanical brake", which uses a motor and an electromagnet assembly to combine and generate a power source, and uses the toggle lever to boost, but the device has a complex structure, parts of the device are not easy to process, the magnetism of the electromagnet is easily affected at high temperature, braking force is not ensured, and the braking device cannot realize a parking braking function.
Disclosure of Invention
In view of the above problems, the present invention provides an electromechanical braking device for a two-way propulsion of an unmanned vehicle.
In order to solve the problems, the technical scheme provided by the invention is as follows: the bidirectional propelling type automobile electromechanical brake device has the characteristics of simple structure, large braking force, quick response and accurate braking. The device comprises a worm wheel, a worm, a gear A, a gear B, a connecting rod A, a connecting rod B, a connecting rod C, a movable shell top, a brake block A, a brake block B, a pawl, a ratchet bar, a coil, a return spring A, a return spring B, a compression spring piece, a supporting spring, a locking pin, a cylindrical roller, a pin hole, an automobile electronic control unit, a supporting pin, a guide pin, a displacement sensor and the like, wherein the worm is connected with a direct current brushless motor through a key, and output torque of a motor after being electrified by the motor sequentially passes through the worm wheel, the connecting rod A, the connecting rod B, the connecting rod C, the brake block A and the brake block B to realize braking of a brake disc; the worm wheel is connected with the gear A through a spline; the connecting rod mechanism comprises a connecting rod A, a connecting rod B and a connecting rod C, wherein the middle part of the connecting rod B is connected with the gear B through a spline; the movable shell top comprises a brake block A, a matched guide rail, a guide rail groove and a brake block; the pawl can rotate around the fixed shaft, and one end of the compression spring piece is always abutted against the claw end of the pawl, so that the pawl has a tendency of rotating around the fixed shaft anticlockwise downwards; one end of the cylindrical roller is abutted against the lower end of the pawl, and the other end of the cylindrical roller is abutted against the supporting spring; one end of the locking pin is connected with the cylindrical roller through a supporting pin, and the locking pin overcomes the elasticity of the compression spring piece under the action of the supporting spring to enable the pawl to be far away from the ratchet bar; the displacement sensor is arranged at one end of the movable shell top, which is close to the brake caliper, and is used for monitoring the abrasion condition of the brake block in real time, and giving an alarm in time when the brake block reaches the abrasion limit.
The torque output by the motor is transmitted to the worm wheel and the worm, the worm wheel drives the gear B to rotate, the pushing torque is increased under the action of the connecting rod mechanism, the brake caliper and the movable shell top are relatively displaced and simultaneously pushed to the brake disc, and the automobile is decelerated under the combined action of the brake blocks.
In the technical scheme, the worm wheel and the worm drive can stably and efficiently reduce the speed and increase the distance.
In the technical scheme, ratchet bar devices are arranged on the upper side and the lower side of the brake caliper, and the parking function can be realized by controlling the opening and closing of the coils.
According to the technical scheme, the displacement sensor is arranged on the movable shell top, the displacement sensor responds rapidly, the relative distance between the brake block and the brake disc can be detected in real time, whether the brake block reaches the wear limit or not can be calculated through the detection of the relative displacement between the movable shell top and the brake caliper by the displacement sensor in the braking process, an alarm is timely given, and the safety and stability of the unmanned vehicle are improved.
Compared with the prior art, the invention has the beneficial effects that.
(1) Compared with the traditional automobile electronic mechanical braking device, the invention replaces the complex structures such as a planetary gear mechanism and the like, and reduces the size of the whole device.
(2) The invention can realize the parking function based on the braking of the running through the internal ratchet bar device.
(3) The invention realizes the functions of speed reduction and distance increase through the combination of the simple worm gear and the gear set, and realizes large output braking force.
(4) According to the invention, the displacement sensor senses the relative displacement information of the movable shell top and the brake caliper and transmits the relative displacement information to the central computing center, the central computing center can calculate the abrasion condition of the brake block, and when the brake block reaches the abrasion limit, an alarm is timely sent out, so that the braking safety of the unmanned vehicle is improved.
(5) The invention uses the electronic mechanical braking device, does not need braking liquid, not only promotes environmental protection, but also improves the installation speed and quality to a great extent, does not need to install a vacuum booster, and reduces the installation space to a great extent.
Drawings
The contents of the drawings and the marks in the drawings of the present invention are further described below to make the following description of the embodiments more obvious and easily understood.
Fig. 1 is a schematic overall structure of the present invention.
Fig. 2 is a schematic view of the relative positioning and mounting of the ratchet bar arrangement of the present invention.
Fig. 3 is a partial detail view of the support spring and locking pin of the ratchet bar assembly of the present invention.
Fig. 4 is a schematic diagram showing the relative positions and installation of the worm wheel, worm and gear a of the present invention.
Fig. 5 is a control schematic diagram of the electromechanical brake of the present invention.
Reference numerals: 1. moving roof, 2. Support pin, 3. Worm, 4. Gear A,4-1. Worm wheel, 5. Motor, 6. Ratchet bar device, 6-1. Compression spring piece, 6-2. Pawl, 6-3. Cylindrical roller, 6-4. Locking pin, 6-5. Support spring, 6-6. Coil, 6-7. Ratchet bar, 6-8. Mating guide rail, 7. Displacement sensor, 8-1. Return spring A,8-2. Return spring B,9. Brake block B,10. Brake block A, 11. Brake disk, 12. Brake caliper, 13. Connecting rod A,14. Locating pin, 15. Gear B,16. Connecting rod B,17. Connecting rod C.
Detailed Description
The present invention is further described below with reference to the drawings and steps of implementation, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions. The following embodiments described with reference to the drawings are illustrative only and are not to be construed as limiting the invention, and are intended to illustrate the invention and not to represent actual construction and true proportions thereof.
In the description of the present invention, the relation of the orientations or positions or relative positions indicated by "center", "clockwise", "counterclockwise", "left", "right", "up", "down", "one side", etc. is based on the relation of the orientations or positions or relative positions shown in the drawings, only for convenience in describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The invention relates to a bidirectional propulsion type electromechanical brake device of an unmanned automobile, which comprises a movable shell top 1, a supporting pin 2, a worm 3, a gear A4, a worm wheel 4-1, a motor 5, a ratchet bar device 6, a compression spring piece 6-1, a pawl 6-2, a cylindrical roller 6-3, a locking pin 6-4, a supporting spring 6-5, a coil 6-6, a ratchet bar 6-7, a matched guide rail 6-8, a displacement sensor 7, a return spring A8-1, a return spring B8-2, a brake block B9, a brake block A10, a brake disc 11, a brake caliper 12, a connecting rod A13, a positioning pin 14, a gear B15, a connecting rod B16 and a connecting rod C17, wherein the motor 5 is arranged on a fixed frame, and the motor 5 is connected with the worm 2 to output torque; one side of the worm wheel 4-1 is meshed with the worm, and the worm wheel 4-1 is connected with the shaft of the gear A4 through a straight key; the gear A4 is meshed with the gear B15, and the gear B15 is connected with the connecting rod B16 through a spline and is mounted on a fixed shaft; two sides of the connecting rod B15 are respectively connected with one side of the connecting rod A13 and one side of the connecting rod C17 through the supporting pin 2, and the connecting rod A13 and the connecting rod C17 can rotate around the hinge joint of the supporting pin 2; the other side of the connecting rod A13 is connected with the brake caliper 12 through a supporting pin 2, and the other side of the connecting rod C17 is connected with the movable shell top 1 through the supporting pin 2 to transmit braking force; the ratchet bar device comprises a pawl 6-2, a ratchet bar 6-7, a coil 6-6, a compression spring piece 6-1, a supporting spring 6-5, a locking pin 6-4, a cylindrical roller 6-3 and a pin hole, wherein the pawl 6-2 can rotate around a fixed shaft, one end of the compression spring piece 6-1 is always abutted against the claw end of the pawl 6-2, so that the pawl 6-2 has a tendency of rotating anticlockwise downwards around the fixed shaft; one end of the cylindrical roller 6-3 is abutted against the lower end of the pawl 6-2; one end of the locking pin 6-4 is connected with the cylindrical roller 6-3 through the supporting pin 2, the other end of the locking pin is abutted against the supporting spring 6-5, and the locking pin 6-4 overcomes the elasticity of the compression spring piece 6-1 under the action of the supporting spring 6-5, so that the pawl 6-2 is far away from the ratchet bar 6-7; the coil 6-6 is energized, the lock pin 6-4 is sucked into the pin hole against the elastic force of the support spring 6-5, and the pawl 6-2 is pressed against the ratchet bar 6-7 under the pressure of the compression spring piece 6-1.
Further, the bidirectional propulsion type electromechanical brake device for the unmanned automobile further comprises a displacement sensor 7, wherein the displacement sensor 7 is arranged on one side of the movable roof 1 close to the brake caliper 12, the displacement sensor 7 is used for detecting relative displacement between the movable roof 1 and the brake caliper 12 in real time, in the braking process, as the brake block A10 and the brake block B9 are gradually worn, a longer brake block propulsion amount is required in the braking process, as the brake block A10 is arranged on the movable roof 1, the brake block B9 is arranged on the brake caliper 12, the brake block propulsion amount can be converted into relative displacement between the movable roof 1 and the brake caliper 12, and when the relative displacement between the movable roof 1 and the brake caliper 12 exceeds a preset threshold value, namely, when the brake block A10 and the brake block B9 reach a wear limit, the displacement sensor 7 transmits relative displacement information between the movable roof 1 and the brake caliper 12 to a central computing center, so that an alarm is given out, and the driving safety of a driver is reminded of changing the brake block.
Further, the bidirectional propulsion type electromechanical brake device of the unmanned automobile further comprises a reset spring A8-1 and a reset spring B8-2, wherein one end of the reset spring A8-1 is abutted against the front end of the brake caliper 12, the other end of the reset spring A8-1 is abutted against the movable shell top 1, the reset spring A8-1 and the reset spring B8-2 are subjected to compression deformation under the action of external force, and the reset spring A8-1 and the reset spring B8-2 are restored to the original states after the external force is gradually eliminated; the return spring B8-2 is arranged on one side symmetrical to the return spring A8-1 and has the same function and installation method.
Further, the bidirectional propulsion type electromechanical brake of the unmanned automobile further comprises a brake block A10 and a brake block B9, wherein the brake block A10 is arranged on one side of the movable roof 1 close to the brake disc 11, and when the brake block A10 is clung to the brake disc 11, a braking moment opposite to the rotation direction of the brake disc 11 is generated, so that friction braking is carried out on the brake disc 11; the brake pad B9 is mounted on a side of the caliper 12 close to the brake disc 11, and when the brake pad B9 is in close contact with the brake disc 11, a braking torque opposite to the rotation direction of the brake disc 11 is generated, so that friction braking is performed on the brake disc 11.
The braking process and the cancellation braking process of the present invention will be described with reference to fig. 1.
In the working process of a service braking state, a central computing center is analyzed, a braking signal is transmitted to a motor 5, the motor 5 rotates to drive a worm 3 to rotate, torque is decelerated and increased after passing through a worm wheel 4-1 and the worm 3, so that the worm wheel 4-1 and a gear A4 rotate anticlockwise, a pinion A4 rotates anticlockwise to drive a large gear B15 to rotate clockwise so as to transmit the torque, the clockwise rotation of the gear B15 is converted into the clockwise rotation of a connecting rod B16 around the center of the gear B15, a braking clamp 12 and a movable shell top 1 respectively connected with the connecting rod B16, the connecting rod A13 and the connecting rod C17 form a bidirectional propelling braking device, the braking clamp 12 is propelled leftwards along a matched guide rail 6-8 and simultaneously the movable shell top 1 is also propelled rightwards along a locating pin 14, and a braking block A10 and a braking block B9 positioned at two sides of the braking disc 11 are gradually compressed on the braking disc 11, and a braking torque opposite to the moving direction is generated on the braking disc 11 under the combined action of the braking block A10 and the braking block B9 so that a car is decelerated.
In the working process of the running brake release state, the central computing center detects a signal for stopping braking, the automobile electronic control unit sends a reversing signal to the motor 5, the movable housing top 1 and the brake caliper 12 start to restore to the original positions under the action of the reset springs A8-1 and B8-2, the worm 3 reversely rotates to drive the pinion A4 so as to enable the large gear B15 to anticlockwise rotate, the brake caliper 12 reversely moves rightwards along the matched guide rail 6-8 and simultaneously moves leftwards along the positioning pin 14, and then the brake block A10 and the brake block B9 are gradually far away from the brake disc 11, and the braking is released.
The principle of operation of the parking brake process and the parking brake release process according to the present invention will be described with reference to fig. 2 and 3.
The working process of the parking braking state is as follows: when the unmanned vehicle is switched to a parking gear and an electronic parking function is started, the automobile electronic control unit sends a signal to the coil 6-6, the coil 6-6 is electrified, the locking pin 6-4 can be sucked into the pin hole, the pawl 6-2 is pressed to the ratchet bar 6-7 under the pressure action of the compression spring piece 6-1, the compression spring piece 6-1 forces the pawl 6-2 to keep contact with the ratchet bar 6-7, the pawl 6-2 is inserted into a tooth groove of the ratchet bar 6-7, and in the process that the brake block A10 and the brake block B9 are gradually pressed to the brake disc 11, namely, the movable housing top 1 moves rightwards along the locating pin 14, and the brake caliper 12 moves leftwards along the matched guide rail 6-8, the pawl 6-2 moves to the next tooth groove on the tooth back of the ratchet bar 6-7 in a stepping mode, so that the brake caliper 12 and the movable housing top 1 can only perform unidirectional pressing movement, and the ratchet bar device 6 can be used for preventing reverse movement of the ratchet bar device 6 so as to realize the parking braking function.
The working process of parking brake release state is as follows: after the electronic parking brake of the unmanned vehicle is released, the automobile electronic control unit sends a signal to the coil 6-6, the coil 6-6 is powered off, the locking pin 6-4 is rapidly ejected out under the elastic force of the supporting spring 6-5, and the pawl 6-2 is ejected away from the ratchet bar 6-7 through the cylindrical roller 6-3, so that the effect of releasing the parking brake is achieved.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the above embodiments, but is capable of being modified or applied to other applications without any modification, as long as the inventive concept and technical scheme are adopted.
Claims (3)
1. The utility model provides an unmanned car two-way propulsion formula electromechanical brake device, including removing shell top (1), backing pin (2), worm (3), gear A (4), motor (5), ratchet device (6), cooperation guide rail (6-8), displacement sensor (7), reset spring A (8-1), reset spring B (8-2), brake block B (9), brake block A (10), brake disc (11), brake caliper (12), connecting rod A (13), locating pin (14), gear B (15), connecting rod B (16), connecting rod C (17), its characterized in that: the motor (5) is electrified to output torque force to the worm (3) and then braking the brake disc (11) is achieved through the worm wheel (4-1), the gear B (15), the connecting rod mechanism, the brake caliper (12) and the movable shell top (1) in sequence; the worm wheel (4-1) is meshed with the worm (3), and one side of the worm wheel (4-1) is connected with the shaft of the gear A (4) through a straight key; the movable shell top (1) comprises a brake block A (10), a matched guide rail (6-8) and a displacement sensor (7); the gear A (4) is meshed with the gear B (15), and the gear B (15) is connected with the middle part of the connecting rod B (16) through a spline and is installed on a fixed shaft; two sides of the connecting rod B (16) are respectively connected with one side of the connecting rod A (13) and one side of the connecting rod C (17) through a supporting pin (2); the other side of the connecting rod A (13) is connected with the brake caliper (12) through a supporting pin (2), and the other side of the connecting rod C (17) is connected with the movable shell top (1) through the supporting pin (2) to transmit braking force.
2. The unmanned vehicle bi-directional propulsion electromechanical brake apparatus according to claim 1, wherein: the ratchet bar device (6) comprises a pawl (6-2), a ratchet bar (6-7), a compression spring piece (6-1), a supporting spring (6-5), a cylindrical roller (6-3) and a coil (6-6), one end of the cylindrical roller (6-3) is abutted against the lower end of the pawl (6-2), and the other end of the cylindrical roller is abutted against the supporting spring (6-5); one end of the locking pin (6-4) is connected with the cylindrical roller (6-3) through the supporting pin (2), the locking pin (6-4) overcomes the elasticity of the compression spring piece (6-1) under the action of the supporting spring (6-5), the pawl (6-2) is far away from the ratchet bar (6-7), the ratchet bar device (6) is arranged on one side of the movable housing top (1) close to the brake caliper (12), after the coil (6-6) is electrified, the locking pin (6-4) is sucked into the pin hole, the pawl (6-2) is pressed towards the ratchet bar (6-7) under the pressure of the compression spring piece (6-1), and the brake caliper (12) can only perform unidirectional relative movement with the movable housing top (1) along the matched guide rail (6-8), so that the parking function is realized.
3. The unmanned vehicle bi-directional propulsion electromechanical brake apparatus according to claim 1, wherein: the movable shell top (1) is internally provided with a displacement sensor (7), the displacement sensor (7) responds rapidly, the displacement sensor (7) is used for detecting the relative displacement of the movable shell top (1) and the brake caliper (12) in real time, in the braking process, the movable shell top (1) and the brake caliper (12) are gradually worn along with the brake pad, when the relative displacement of the movable shell top (1) and the brake caliper (12) exceeds a preset threshold value, the displacement sensor (7) can transmit the relative displacement information of the movable shell top (1) and the brake caliper (12) to a central computing center, so that an alarm is given, a driver is reminded of replacing the brake pad, and the safety of service braking is improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210378722.5A CN116946091A (en) | 2022-04-12 | 2022-04-12 | Bidirectional propulsion type electromechanical brake device for unmanned automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210378722.5A CN116946091A (en) | 2022-04-12 | 2022-04-12 | Bidirectional propulsion type electromechanical brake device for unmanned automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116946091A true CN116946091A (en) | 2023-10-27 |
Family
ID=88458859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210378722.5A Pending CN116946091A (en) | 2022-04-12 | 2022-04-12 | Bidirectional propulsion type electromechanical brake device for unmanned automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116946091A (en) |
-
2022
- 2022-04-12 CN CN202210378722.5A patent/CN116946091A/en active Pending
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