CN107830083B - Electric brake - Google Patents
Electric brake Download PDFInfo
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- CN107830083B CN107830083B CN201711007392.4A CN201711007392A CN107830083B CN 107830083 B CN107830083 B CN 107830083B CN 201711007392 A CN201711007392 A CN 201711007392A CN 107830083 B CN107830083 B CN 107830083B
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- braking
- driving motor
- braking force
- electric brake
- brake
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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
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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
- B60T13/746—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
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
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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
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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
- F16D2055/0075—Constructional features of axially engaged brakes
- F16D2055/0079—Constructional features of axially engaged brakes with braking members arranged non-symmetrically with respect to the rotor
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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
- F16D2121/18—Electric or magnetic
- F16D2121/24—Electric or magnetic using motors
Abstract
The invention provides an electric brake, and belongs to the technical field of automobiles. It has solved the complicated problem of current clearance self-modulation device structure. This electric brake, including driving motor, screw transmission structure and friction disc, driving motor can drive screw transmission structure and promote the friction disc and lean on the brake disc of vehicle, and driving motor can also compensate electric brake's braking clearance as clearance compensation arrangement by controller control: after the drive motor drives the screw transmission structure to start braking, a sensor is adopted to acquire the braking force T applied when the friction plate abuts against the brake disc1The size of (d); the controller collects the braking force T1With a predetermined braking force value T2Comparing, and setting the position of the rotor of the driving motor as a braking demarcation point when the two are equal; after braking is finished, the braking demarcation point is taken as a starting point, the driving motor is controlled to rotate reversely for setting the number of turns N2. The electric brake has the advantages of simple structure, high control precision and good braking effect.
Description
Technical Field
The invention belongs to the technical field of automobile braking, and relates to an electric brake.
Background
A brake is a device having a function of decelerating, stopping, or maintaining a stopped state of a moving member (or a moving machine), and is commonly called a brake. The electric brake is one of the brakes, adopts a motor as a driving power source, converts circumferential rotation motion output by the motor into linear motion through a mechanical transmission structure, and accordingly realizes axial pushing of the friction plate. Compared with other brakes, the electric brake is gradually and widely used due to the advantages of energy conservation, environmental protection, convenience in integrated control and the like. However, during braking, the friction pad is worn continuously as a friction target, and the braking gap between the friction pad and the brake disc is gradually increased, so that it is necessary to compensate the braking gap of the electric brake in real time after the friction pad is worn to ensure the sensitivity during braking.
For example, an electromechanical brake is designed, which includes a friction plate, a brake disc, and a power mechanism capable of pushing the friction plate to move forward to clamp the brake disc, wherein the power mechanism includes a motor and a motion mechanism connected to an output end of the motor, the motion mechanism is capable of converting a rotational motion of the motor into a linear motion, the electromechanical brake further includes a gap self-adjusting device disposed between the motion mechanism and the friction plate, the gap self-adjusting device includes a feeding unit and a compensating unit, the feeding unit is driven by the motion mechanism to move axially, and the compensating unit is used for limiting a backward axial motion of the feeding unit after braking is completed to compensate a braking gap.
The electronic mechanical brake adopts the feeding unit and the compensating unit in the mechanical clearance self-adjusting device to compensate the braking clearance which changes after braking, however, the feeding unit in the clearance self-adjusting device comprises a non-self-locking nut, the compensating unit comprises a non-self-locking bolt, a piston cylinder, a rectangular ring, an inner snap spring and other structures, the whole clearance self-adjusting device has more components, the structure is more complex, the components of the compensating unit in the clearance self-adjusting device are easy to wear in the circumferential rotation process, and the service life is shorter.
Disclosure of Invention
The invention aims to provide an electric brake aiming at the problems in the prior art, and the technical problem to be solved is how to simplify the structure for adjusting the brake clearance.
The purpose of the invention can be realized by the following technical scheme:
an electric brake, includes driving motor, screw drive structure and friction disc, driving motor can drive above-mentioned screw drive structure and promote the friction disc supports and leans on the brake disc of vehicle, its characterized in that, driving motor can also compensate electric brake's braking clearance as clearance compensation arrangement by controller control:
after the drive motor drives the screw transmission structure to start braking, a sensor is adopted to acquire the braking force T applied when the friction plate abuts against the brake disc1The size of (d);
the controller collects the braking force T1With a predetermined braking force value T2Comparing, and setting the position of the rotor of the driving motor as a braking demarcation point when the two are equal;
after braking is finished, the braking demarcation point is taken as a starting point, the driving motor is controlled to rotate reversely for setting the number of turns N2。
When a vehicle brakes, the electric brake acquires the braking force T1 on a friction plate in real time and compares the braking force T1 with a preset braking force value T2, and if the braking force T1 is smaller than the preset braking force value T2, the electric brake continues to detect; and if the two are equal, the position and the angle of the rotor of the driving motor at the moment are taken as the braking demarcation point. And after braking is finished, the driving motor is reversely rotated, the braking dividing point is used as the starting point of counting the number of turns, the driving motor is controlled to reversely rotate for a set number of turns N2, and the distance of the driving motor retreats every time after braking is finished is the same. The braking response time of the driving motor rotating forward for the set number of turns N2 will be constant when the rotating speed of the driving motor is stable at the next braking, that is, the response time of each braking is the same through the accurate control of the driving motor for driving the friction plate braking, and the change of the braking clearance caused by friction of the friction plate after each braking is also compensated. In the process of compensating the brake clearance, the driving motor is controlled by the controller, and the brake clearance of the brake can be constantly controlled and adjusted according to the reduction and the enlargement of the brake clearance according to the brake condition, namely, the compensation can be realized not only when the clearance is increased during the compensation of the brake clearance, but also the reverse compensation can be performed when the brake clearance is insufficient.
Adopt this electric brake to carry out braking compensation, through the screw drive structure of the driving motor among controller and the sensor cooperation electric brake and with driving motor's power transmission output, only compensate electric brake's braking clearance in order to realize the regulation and the compensation to the braking clearance by driving motor as clearance compensation arrangement, can realize driving braking and these two effects of braking clearance automatic compensation promptly through a driving motor among the electric brake, need not to add the clearance compensation arrangement of mechanical type in addition, the structure is comparatively simple.
And the whole braking process takes the braking force reaching the stable braking effect as the basis of the setting of the braking demarcation point to realize the closed-loop control of the work of the driving motor, so that the same braking effect can be achieved within the same response time after the clearance compensation, and the stability of the braking effect is ensured.
In the electric brake, after the braking is started, the number of rotation turns Ns of the driving motor is recorded in real time, and when the braking force T is acquired1Is less than a predetermined braking force value T2And when braking is finished, controlling the driving motor to rotate reversely for the Ns circle. Braking force T1When the size of the brake pad does not reach a sufficient size, including the situation that the friction plate is not abutted against the brake disc after the braking is started, the drive motor can be controlled to return to the position when the braking is started, the braking compensation is not carried out, and the constancy of the braking clearance is ensured.
In the above-mentioned electric brake, the sensor is capable of detecting the braking force T applied to the friction plate when the friction plate abuts against the brake disc1Or a torque sensor capable of detecting the torque of the drive motor. According to the requirement of an actual screw transmission structure, a pressure sensor can be directly adopted to detect the magnitude of the braking force, or a torque sensor is adopted to detect the magnitude of the torque of a driving motor so as to indirectly feed back the magnitude of the braking force.
In the electric brake, the sensor is a pressure sensor, and the pressure sensor is connected to the screw transmission structure and can detect a reaction force received by the screw transmission structure when the screw transmission structure applies an acting force to the friction plate. The long-time friction of friction disc will take place wearing and tearing, if directly connect pressure sensor on friction disc or brake disc and be used for detecting the brake force size, not only can influence the effect of braking, and pressure sensor receives the damage easily, and life is shorter, and set up pressure sensor in screw drive structure department and be used for detecting the reaction force then can avoid pressure sensor to receive the influence of friction disc wearing and tearing, guarantee the stability that the brake force detected to more be favorable to the accurate control of controller, and then improve braking effect.
In the electric brake, the screw transmission structure includes a nut and a screw in threaded connection with the nut, the nut is in transmission connection with the output end of the driving motor, one end of the screw faces the friction plate, the pressure sensor is arranged on one side of the nut, the pressure sensor and the friction plate are respectively arranged on two sides of the nut, and the nut can apply acting force on the pressure sensor. This electric brake during operation, by driving motor output power, drive nut circumferential direction, axial displacement can take place for the screw rod when the nut rotates to the friction disc that will correspond with screw rod one end position is released to the brake disc on, at this moment, the friction disc can be exerted on the screw rod and with screw rod threaded connection's nut with the reaction force that receives the brake disc, and then transmits reaction force to pressure sensor through the nut on, with the braking force size that supplies pressure sensor to detect the friction disc. On the contrary, the driving motor rotates reversely, the screw rod retracts reversely, the braking force applied to the friction plate is cancelled, the friction plate can leave the surface of the brake disc, and the braking is cancelled.
In the electric brake, the pressure sensor has a detection portion for detecting the magnitude of the braking force, and the detection portion is annular and is sleeved outside the screw. The detection part is annular and is sleeved on the outer side of the screw rod, can be well opposite to the position of the nut, and can bear acting force applied by the nut to the nut more stably.
In the electric brake, a ring gear which can be in transmission connection with the driving motor is fixed on the outer side of the nut, and a limiting part which can limit the screw in the circumferential direction is sleeved on the outer side of the screw. The screw thread passes through ring gear and is connected with driving motor transmission, and the transmission is more stable, can transmit drive power better, and the locating part can make the screw rod only along axial motion to the spacing of screw rod, can receive its reaction force better and pass through the nut transmission for pressure sensor, improves the accuracy nature that pressure sensor detected, and then improves the precision of braking compensation.
In the above electric brake, the set number of turns N2When the brake is firstly braked, the drive motor drives the screw rod transmission structure to act until the friction plate is abutted against the brake disc to bear the brake force T1With a predetermined braking force value T2The number of turns of the driving motor is equal. According to different conditions of the actual vehicle, the number of the rotation turns of the driving motor during the primary braking can be collected to be used as the set number of turns N2So as to be flexibly set according to different vehicles and vehicle conditions and ensure the braking effect.
As another case, in the above-described electric brake, the set number of turns N2The number of the turns is 6-20. The set number of turns can enable the brake response time achieved when the driving motor rotates forwards to be enough to meet the brake requirement.
In the above electric brake, the preset braking force value T2Is 100 to 5000N. The braking force value can meet the braking requirement.
In the above-described electric brake, the magnitude T of the braking force when the electric brake is the continuous braking1For continuously increasing continuous variable, the braking force T is collected1Directly associated with a predetermined braking force value T2In comparison, when the two are equal, the position of the rotor of the driving motor is the braking demarcation point. When the electric brake is in a continuous braking mode, the driving motor continuously provides braking force for the friction plate, and the braking force T1If the magnitude of the braking force T is continuously increased, the collected braking force T can be directly obtained1With a predetermined braking force value T2And comparing to judge the braking demarcation point.
Alternatively, in the above-described electric brake, when the electric brake is a snub brake, the magnitude T of the braking force is set1The collected effective interval internal braking force T is a discrete variable1And a predetermined braking force value T2In comparison, when the two are equal, the position of the rotor of the driving motor is the braking demarcation point. When the electric brake is pointAt the time of braking, the braking force T1Is a variable that continuously changes in several discrete intervals, the braking force T can be varied in a single effective interval1And a predetermined braking force value T2And comparing to judge the braking demarcation point.
Compared with the prior art, the electric brake has the advantages that the driving motor is accurately controlled and only used as a clearance compensation device, the arrangement of a mechanical clearance compensation structure is cancelled, and the structure is greatly simplified; meanwhile, the number of reverse turns of the driving motor is accurately controlled on the basis of controlling the braking force applied to the friction plate, and the control precision is higher by utilizing closed-loop control, so that the constant control of the braking gap is realized; and the electric brake applies basically the same braking force to the friction plate within the same braking response time, thereby ensuring the braking effect.
Drawings
Fig. 1 is a control flowchart of the present electric brake.
Fig. 2 is a control schematic block diagram of the present electric brake.
Fig. 3 is a schematic sectional view of the electric brake.
In the figure, 1, a motor is driven; 2. a friction plate; 3. a pressure sensor; 4. a nut; 5. a screw; 6. a limiting member; 7. a ring gear.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 3, the electric brake includes a driving motor 1, a screw transmission structure and a friction plate 2, wherein the screw transmission structure includes a transmission gear, a nut 4, a screw 5 in threaded connection with the nut 4, and a limiting member 6, the nut 4 is in transmission connection with an output end of the driving motor 1 through the transmission gear, the limiting member 6 can circumferentially limit the screw 5, and one end of the screw 5 faces the friction plate 2. In this embodiment, the nuts 4 and the screws 5 are two, the two nuts 4 are fixed on the outer sides thereof with a ring gear 7 capable of being in transmission connection with the transmission gear, the limiting member 6 is plate-shaped and penetrates through the two non-circular through holes, the cross-sectional shapes of the two screws 5 facing one end of the friction plate 2 are matched with the through holes and are respectively inserted into the two through holes, and the limiting member 6 is further axially fixed on the two screws 5 through a snap spring.
As shown in fig. 2, the electric brake further includes a controller, a sensor capable of detecting the braking force applied to the friction plate 2, and a detection module capable of detecting the number of rotation turns of the driving motor 1, and the sensor, the detection module, and the driving motor 1 in the electric brake are all connected to the controller. The controller can receive signals sent by the sensor and the detection module, and controls the working state of the driving motor 1 according to a preset program. In this embodiment, the sensor is the pressure sensor 3, and of course, a torque sensor for detecting the torque of the driving motor 1 may be selected; the detection module can adopt structures such as an encoder or a Hall sensor; pressure sensor 3 connects in screw rod transmission structure department, wherein, pressure sensor 3 has the detection part that is used for detecting the brake force size, this detection part is the annular and overlaps and establish in the screw rod outside, and just right with 4 one sides of nut among the screw rod transmission structure, when screw rod 5 received the transmission of nut 4 and made linear motion to friction disc 2 direction, screw rod 5 applyed brake force and sticiss friction disc 2 on the brake disc to friction disc 2, screw rod 5 and threaded connection receive the reaction force at the nut 4 in the screw rod 5 outside, and apply this reaction force and supply pressure sensor 3 to detect on supplying pressure sensor 3's detection part, can avoid pressure sensor 3's the testing process to receive the influence of friction disc 2 wearing and tearing like this. When the screw 5 is driven by the driving motor 1 to move axially and the friction plate 2 is not yet abutted against the brake disk, the screw 5 and the thread are not subjected to a large reaction force.
The driving motor 1 in the electric brake can also be used as a clearance compensation device to compensate the braking clearance of the electric brake:
setting a preset value T of braking force2And preset value N of reverse turn number of driving motor 12(ii) a According to different requirements, preset parameters such as brake clearance and the like can be set to be input, and then the parameters are converted into a brake force value and a reverse rotation number value through a calculation formula in the controller, so that the setting of the parameters can be intuitively understood;
after the driving motor 1 drives the screw transmission structure to start braking, the number of rotation turns Ns of the driving motor 1 is recorded in real time, and the pressure sensor 3 is adopted to acquire the braking force T borne by the friction plate 2 when the friction plate abuts against the brake disc1The size of (d);
the collected braking force T is transmitted by the controller1With a predetermined braking force value T2Comparing, when the two are equal, detecting the position of the rotor of the driving motor 1 by a detection module and setting the position as a braking demarcation point;
after braking is finished, the driving motor 1 is controlled to reversely rotate for a set number of turns N by taking the braking boundary point as a starting point2；
When the braking force T is collected1Is always smaller than a preset braking force value T2And when braking is finished, controlling the driving motor 1 to rotate reversely for Ns circles, so that the driving motor 1 rotates reversely to the initial position when braking is started.
In the present embodiment, when the electric brake is the continuous braking, i.e. the magnitude T of the braking force1For continuously increasing continuous variable, the braking force T collected can be directly measured1With a predetermined braking force value T2In contrast, when the two are equal, the rotor of the driving motor 1 is located at the braking dividing point. Braking force value T2The range of (1) is 100-5000N; set number of turns N of reverse rotation of drive motor 12The range of (a) is 6-20 circles.
Adopt above-mentioned electric brake, only need through the screw drive structure of driving motor 1 among the detector cooperation electric brake and with driving motor 1's power transmission output, can realize the regulation and the compensation to the braking clearance, can realize these two effects of driving braking and braking clearance automatic compensation through a driving motor 1 among the electric brake promptly, need not to add the clearance compensation arrangement of mechanical type in addition, simple structure.
In addition, the number of turns N is set according to different control requirements2Or the braking force T applied by the driving motor 1 from the beginning of driving the screw transmission structure to the moment that the friction plate 2 abuts against the brake disc during the first braking1With a predetermined braking force value T2Equal-time driving motor1 number of turns. When the electric brake is a point brake, the magnitude T of the braking force1Being a discrete variable, i.e. braking force T1The value of (1) is divided into a plurality of intervals, an effective braking force value is arranged in each interval, the braking force between two adjacent intervals is 0, and then the collected braking force T in the effective interval can be obtained1And a predetermined braking force value T2In contrast, when the two are equal, the rotor of the driving motor 1 is located at the braking dividing point.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (9)
1. An electric brake, includes driving motor (1), screw drive structure and friction disc (2), above-mentioned screw drive structure promotion friction disc (2) are supported and is leaned on the brake disc of vehicle can be driven to driving motor (1), characterized by, driving motor (1) can also compensate electric brake's braking clearance as clearance compensation arrangement by controller control:
after the driving motor (1) drives the screw transmission structure to start braking, a sensor is adopted to acquire the braking force T borne by the friction plate (2) when the friction plate abuts against a brake disc1Recording the number of rotation turns Ns of the driving motor (1) in real time;
the controller collects the braking force T1With a predetermined braking force value T2Comparing, and setting the position of the rotor of the driving motor (1) as a braking boundary point when the two are equal; the braking force value T2Braking force for achieving stable braking effect;
after braking is finished, the driving motor (1) is controlled to rotate reversely by taking the braking boundary point as a starting point to set the number of turns N2；
When the braking force T is collected1Is less than a predetermined braking force value T2And when braking is finished, the driving motor (1) is controlled to rotate reversely for the Ns circle.
2. The electric brake as claimed in claim 1, characterized in that the sensor is able to detect the braking force T to which the friction disc (2) is subjected when it is applied against the brake disc1Or a torque sensor capable of detecting the torque of the drive motor (1).
3. An electric brake as claimed in claim 2, characterized in that the sensor is a pressure sensor (3), the pressure sensor (3) being connected to the screw drive and being capable of detecting a reaction force to which the screw drive is subjected when the screw drive exerts a force on the friction discs (2).
4. The electric brake of claim 3, characterized in that the screw transmission structure comprises a nut (4) and a screw (5) in threaded connection with the nut (4), the nut (4) is in transmission connection with the output end of the driving motor (1), one end of the screw (5) faces the friction plate (2), the pressure sensor (3) is arranged on one side of the nut (4) and the pressure sensor (3) and the friction plate (2) are respectively arranged on two sides of the nut (4), and the nut (4) can apply acting force on the pressure sensor (3).
5. The electric brake as claimed in claim 4, characterized in that the pressure sensor (3) has a detection portion for detecting the magnitude of the braking force, which is annular and fitted around the outside of the screw (5).
6. The electric brake as claimed in claim 5, characterized in that a ring gear (7) capable of being in transmission connection with the driving motor (1) is fixed on the outer side of the nut (4), and a limiting member (6) capable of circumferentially limiting the screw rod (5) is sleeved on the outer side of the screw rod.
7. The electric brake of claim 1, wherein the set number of turns N2Is a headDuring secondary braking, the driving motor (1) drives the screw transmission structure to act from the beginning until the braking force T borne by the friction plate (2) when the friction plate abuts against the brake disc1With a predetermined braking force value T2The equal number of turns of the driving motor (1) is equal.
8. The electric brake of claim 1, wherein the magnitude T of the braking force is a magnitude of the braking force when the electric brake is a continuous brake1For continuously increasing continuous variable, the braking force T is collected1Directly associated with a predetermined braking force value T2And in comparison, when the two are equal, the position of the rotor of the driving motor (1) is a braking boundary point.
9. The electric brake of claim 1, wherein the magnitude of the braking force T is greater when the electric brake is a snub brake1The collected effective interval internal braking force T is a discrete variable1And a predetermined braking force value T2And in comparison, when the two are equal, the position of the rotor of the driving motor (1) is a braking boundary point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711007392.4A CN107830083B (en) | 2017-10-24 | 2017-10-24 | Electric brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711007392.4A CN107830083B (en) | 2017-10-24 | 2017-10-24 | Electric brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107830083A CN107830083A (en) | 2018-03-23 |
| CN107830083B true CN107830083B (en) | 2020-09-11 |
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|---|---|---|---|
| CN201711007392.4A Active CN107830083B (en) | 2017-10-24 | 2017-10-24 | Electric brake |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111361538B (en) * | 2020-04-10 | 2022-01-28 | 中车青岛四方车辆研究所有限公司 | Outer clamp body, maglev train brake and brake control method |
| CN113389828A (en) * | 2021-06-15 | 2021-09-14 | 江苏大学 | Structure of commercial vehicle electronic mechanical brake and gap regulation and control device and method |
| CN114826028A (en) * | 2022-03-31 | 2022-07-29 | 武汉步锐科汽车工业科技有限责任公司 | Motor control method and device for EMB braking, storage medium and electronic equipment |
| CN115230671A (en) * | 2022-08-26 | 2022-10-25 | 浙江联控技术有限公司 | Monitoring method and monitoring system for thickness of brake friction plate and brake system |
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| US6230854B1 (en) * | 1996-12-16 | 2001-05-15 | Continental Teves Ag & Co., Ohg | Disc brake which can be actuated electromechanically |
| CN101062682A (en) * | 2006-04-24 | 2007-10-31 | 罗伯特.博世有限公司 | Braking method of automotive disc brake and monitoring disc brake |
| CN102384192A (en) * | 2011-07-06 | 2012-03-21 | 隆中控股集团有限公司 | Clearance self-regulating mechanism in automobile air pressure disc brake |
| CN105889374A (en) * | 2016-02-22 | 2016-08-24 | 浙江大学台州研究院 | Method for controlling gap adjustment of electronic mechanical brake |
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2017
- 2017-10-24 CN CN201711007392.4A patent/CN107830083B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6230854B1 (en) * | 1996-12-16 | 2001-05-15 | Continental Teves Ag & Co., Ohg | Disc brake which can be actuated electromechanically |
| CN101062682A (en) * | 2006-04-24 | 2007-10-31 | 罗伯特.博世有限公司 | Braking method of automotive disc brake and monitoring disc brake |
| CN102384192A (en) * | 2011-07-06 | 2012-03-21 | 隆中控股集团有限公司 | Clearance self-regulating mechanism in automobile air pressure disc brake |
| CN105889374A (en) * | 2016-02-22 | 2016-08-24 | 浙江大学台州研究院 | Method for controlling gap adjustment of electronic mechanical brake |
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