CN115230671A - Monitoring method and monitoring system for thickness of brake friction plate and brake system - Google Patents
Monitoring method and monitoring system for thickness of brake friction plate and brake system Download PDFInfo
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- CN115230671A CN115230671A CN202211033474.7A CN202211033474A CN115230671A CN 115230671 A CN115230671 A CN 115230671A CN 202211033474 A CN202211033474 A CN 202211033474A CN 115230671 A CN115230671 A CN 115230671A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000001514 detection method Methods 0.000 claims description 4
- 238000004590 computer program Methods 0.000 claims description 3
- 238000012806 monitoring device Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The application provides a monitoring method, a monitoring system and a braking system for the thickness of a brake friction plate of an electric automobile. The brake lining has an initial position and a compensation position for compensating for the amount of brake wear, and the monitoring method includes: acquiring the distance between the initial position and the compensation position; and if the distance reaches a first threshold value, sending a reminding signal. This application can monitor electric automobile's brake disc's wearing and tearing degree to in time remind the user to change brake disc, can reduce the driving risk that brake disc wearing and tearing brought.
Description
Technical Field
The application relates to the technical field of electric automobiles, in particular to a monitoring method, a monitoring system and a braking system for the thickness of a brake friction plate of an electric automobile.
Background
Many electric vehicles employ disc brakes that are actuated by pushing brake pads against a brake disc. The brake friction plate can be worn along with use, and when the wear loss reaches a certain value, the brake capacity of the automobile can be influenced, and potential safety hazards are generated.
When the brake pads wear, the vehicle typically has an alarm system. However, when the brake friction plate is worn, the alarm is given, which is not beneficial to planning and replacing the brake friction plate in advance and also affects the safety of the automobile.
Disclosure of Invention
The application provides a brake friction plate thickness monitoring method, a brake friction plate thickness monitoring system and a brake system, wherein the brake friction plate thickness monitoring method, the brake friction plate thickness monitoring system and the brake system can better monitor the abrasion loss of a brake friction plate.
The application provides a monitoring method for the thickness of a brake friction plate of an electric automobile, wherein the brake friction plate is provided with an initial position and a compensation position for compensating brake wear, and the monitoring method comprises the following steps:
acquiring the distance between the initial position and the compensation position;
and if the distance reaches a first threshold value, sending a reminding signal.
Optionally, the monitoring method further includes:
if the distance reaches a second threshold value, sending an alarm signal and/or a speed limit reminding signal; the second threshold is greater than the first threshold.
Optionally, the monitoring method further includes:
a zero calibration step of calibrating the initial position to a zero position, the zero calibration step being provided before the initial position and the compensation position are acquired.
In the alternative,
the zero calibration step comprises:
controlling the brake friction plate to move and clamp with the brake disc;
acquiring clamping force of the brake friction plate;
if the clamping force reaches a preset clamping force, controlling the brake friction plate to be loosened from the brake disc;
and acquiring the current position of the brake friction plate, and setting the current position as the initial position.
Optionally, the obtaining the compensation position includes:
after each braking, acquiring the compensation position of the brake friction plate; or
When the mileage threshold is reached, acquiring the compensation position of the brake friction plate; or
When the braking times reach a threshold value, acquiring the compensation position of the brake friction plate; or
When the running time reaches a threshold value, acquiring a compensation position of the brake friction plate; or
And when a detection instruction is received, acquiring the compensation position of the brake friction plate.
Optionally, the obtaining the initial position and the compensation position includes:
and acquiring the initial position and the compensation position of the brake friction plate in a braking state or a non-braking state.
The present application provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements a monitoring method as claimed in any one of the above.
The application provides a monitoring system, includes:
the acquisition module is used for acquiring the distance between the initial position and the compensation position; and
the processing module is used for sending a reminding signal when the distance reaches a first threshold value; and the distance monitoring unit is used for sending an alarm signal and/or a speed limit reminding signal when the distance reaches a second threshold value.
The present application further provides a braking system comprising:
braking the friction plate;
the piston is connected with the brake friction plate;
the position sensor is used for detecting the initial position and the compensation position of the brake friction plate;
a force sensor, disposed in said piston or said brake pad, for detecting a clamping force of said brake pad;
the alarm is used for sending out an alarm signal; and
the processor is connected with the position sensor and the alarm and is used for controlling the alarm to send a reminding signal when the distance reaches a first threshold value; and the alarm is controlled to send an alarm signal and/or a speed limit reminding signal when the distance reaches a second threshold value.
Optionally, braking system still includes brake disc and motor element, motor element with the treater is connected, the piston is connected motor element with the braking friction disc, motor element is used for the drive the piston drives the braking friction disc removes, with the brake disc is held tightly or is loosened, position sensor set up in motor element.
This application is through detecting brake friction disc's initial position and compensation position, judges the distance of the two, sends when the distance reaches a definite value and reminds, can monitor electric automobile's brake friction disc's degree of wear to in time remind the user to change brake friction disc, can reduce the driving risk that brake friction disc wearing and tearing brought.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic structural view showing an embodiment of the brake system of the present application.
Fig. 2 is a block diagram showing the structure of another embodiment of the brake system of the present application.
FIG. 3 is a flow chart illustrating one embodiment of a method for monitoring brake pad thickness according to the present application.
FIG. 4 is a flow chart illustrating another embodiment of a brake pad thickness monitoring method of the present application.
FIG. 5 is a block diagram illustrating one embodiment of a computer-readable storage medium of the present application.
Fig. 6 is a block diagram illustrating an embodiment of a monitoring system according to the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "a number" means two or more. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed after "comprises" or "comprising" is inclusive of the element or item listed after "comprising" or "comprises", and the equivalent thereof, and does not exclude additional elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
The monitoring method for the thickness of the brake friction plate of the electric automobile comprises the following steps: acquiring the distance between the initial position and the compensation position; and if the distance reaches a first threshold value, sending a reminding signal. Through initial position and the compensation position that detects the brake friction disc, judge the distance of the two, send when the distance reaches a definite value and remind, can monitor electric automobile's brake friction disc's degree of wear to in time remind the user to change the brake friction disc, can reduce the driving risk that brake friction disc wearing and tearing brought.
The application provides a monitoring method, a storage medium, a monitoring system and a braking system for the thickness of a brake friction plate of an electric automobile. The following describes the monitoring method, the storage medium, the monitoring system and the braking system for the thickness of the brake friction plate of the electric vehicle in detail with reference to the accompanying drawings. The features of the following examples and embodiments may be combined with each other without conflict.
FIG. 1 illustrates a schematic structural view of an embodiment of a braking system 100 of the present application. As shown in FIG. 1, the braking system 100 includes a motor assembly 113, a piston 104, a brake pad 105, and a brake disc 106. The motor assembly 113 includes a drive motor 101, a transmission 102, and a spindle 103. The driving motor 101 is connected to the transmission mechanism 102, the main shaft 103 is connected to the transmission mechanism 102, and the piston 104 is connected to the main shaft 103. The driving motor 101 drives the piston 104 to move through the transmission mechanism 102 and the main shaft 103. The brake pads 105 are connected to the piston 104. When the braking system 100 is started, the driving motor 101 drives the piston 104 to move, and the piston 104 pushes the brake pad 105 to move towards the brake disc 106, so that the brake pad holds the brake disc 106 tightly, and braking is achieved. When braking is completed, the driving motor 101 drives the piston 104 to push the brake pad 105 back away from the brake disc 106, and the position of the brake disc 106 is kept unchanged. In the non-braking state, the distance between the right side of the brake pad 105 and the brake disc 106 is kept constant. As the brake pads 105 wear, the thickness of the brake pads 105 decreases, and the distance between the left side edge of the brake pads 105 and the brake disc 106 decreases.
Fig. 2 is a block diagram illustrating another embodiment of the braking system 100 of the present application. Referring to fig. 1-2, the braking system 100 includes a force sensor 108, a position sensor 109, a processor 110, and an alarm 112. A force sensor 108 is disposed in the piston 104 or the brake pad 105 and is electrically connected to the brake pad 105 for detecting a clamping force of the brake pad 105. The position sensor 109 is provided on the spindle 103 and detects the position of the spindle 103. The driving motor 101, the force sensor 108, and the position sensor 109 are electrically connected to a processor 110, respectively, and the processor 110 detects the clamping force of the brake pads 105 during braking by the force sensor 108 and detects the position of the spindle 103 by the position sensor 109. Since the thicknesses of the main shaft 103 and the piston 104 are constant, the position detected by the position sensor 109 can reflect the position of the left side of the brake pad 105. The alarm 112 is used to send out an alarm signal. The processor 110 is connected to the alarm 112 for controlling the alarm 112 to send a reminding signal.
The electric vehicle includes a vehicle control system 111, and in this embodiment, the processor 110 is integrated with the vehicle control system 111, so as to integrate the functions of the braking system 100 into the vehicle control system 111, which is simple in structure. In other embodiments, the processor 110 is independent of the vehicle control system 111, and the configuration of the vehicle control system 111 is not changed, so that a sophisticated vehicle control system 111 can be used without additional customization.
FIG. 3 is a flow chart illustrating one embodiment of a method 200 for monitoring brake pad thickness according to the present application. The brake system 100 is used to perform the monitoring method 200. Referring to fig. 1 and 3, the brake pads 105 have an initial position and a compensation position for compensating for the amount of brake wear. The initial position and the compensation position include both the brake linings 105 in the braking state and in the non-braking state. When the electric automobile leaves a factory or after the electric automobile replaces the brake pad 105 every time, braking is not performed yet, and the position of the brake pad 105 is the initial position of the non-braking state. When the brake pad 105 is first braked and is in a first braking state, the brake pad 105 embraces the brake disc 106, and at this time, the position of the left side of the brake pad 105 is the initial position in the braking state. After the electric vehicle is braked for the first time or a plurality of times, the brake pad 105 is worn, the thickness of the brake pad is reduced, the brake pad 105 needs to move towards the brake disc 106 to keep the distance between the right side of the brake pad 105 and the brake disc 106 unchanged, and the position of the brake pad 105 is the compensation position of the non-braking state. When the brake lining 105 is braked for the first time or a plurality of times, the brake lining 105 is worn, and the position of the left side of the brake lining 105 is the compensation position in the braking state. The monitoring method 200 includes steps 210, 220, and 230. In step 210, the distance between the initial position and the compensated position is obtained. The braking system 100 acquires the initial position and the compensated position through the position sensor 109 and calculates the distance therebetween. In step 220, if the distance reaches the first threshold, a warning signal is sent. The first threshold value indicates that the brake linings 105 have worn and the brake system 100 sends a warning signal. The braking system 100 may send a voice or text alert to the user via the human-computer interface reminding the user to replace the brake pads 105. The user can schedule the replacement plan by himself.
In some embodiments, the initial position and the compensation position of the brake friction plate 105 are detected, the distance between the initial position and the compensation position is judged, when the distance reaches a certain value, a prompt is sent, the wear degree of the brake friction plate 105 of the electric automobile can be monitored, a user is timely reminded to replace the brake friction plate 105, and the driving risk caused by the wear of the brake friction plate 105 can be reduced.
In step 230, if the distance reaches the second threshold, an alarm signal and/or a speed limit reminding signal is sent. The second threshold is greater than the first threshold. The second threshold value represents a risk that the brake linings 105 have worn more, affecting the braking performance, and the braking system 100 sends an alarm signal to the user. In some embodiments, the braking system 100 may further send a speed limit reminding signal to the vehicle control system 111 to remind the vehicle to run at a reduced speed or reduce the torque, so as to improve the safety. The first threshold and the second threshold may be set before the automobile leaves the factory, or may be customized by a user. The user may input the first threshold value and the second threshold value to the brake system 100 after each replacement of the friction plate 105.
In some embodiments, obtaining the compensated position comprises: after each braking, a compensating position of the brake pads 105 is obtained. During the driving of the electric vehicle, the brake system 100 may monitor the degree of wear of the brake pads 105 at all times. After the electric vehicle brakes each time, the braking system 100 acquires the compensation position of the brake friction plate 105 through the position sensor 109, calculates the distance between the compensation position and the initial position of the brake friction plate 105, and sends a corresponding signal if the distance reaches a first threshold value or a second threshold value. In some embodiments, obtaining the compensated position comprises: when the mileage threshold is reached, the compensated position of the brake pads 105 is obtained. The brake system 100 performs a monitoring of the degree of wear of the brake pads 105 each time the electric vehicle travels a certain mileage. Since the brake pads 105 may not wear immediately after replacement, monitoring may be performed after every certain mileage, which may save energy. In some embodiments, obtaining the compensated position comprises: when the number of braking times reaches a threshold value, the compensation position of the brake pads 105 is obtained. The brake system 100 performs a monitoring of the wear degree of the brake pads 105 each time the electric vehicle is braked a certain number of times. In some embodiments, obtaining the compensated position comprises: when the driving time reaches a threshold value, the compensation position of the brake lining 105 is obtained. The brake system 100 performs monitoring of the degree of wear of the brake pads 105 each time the electric vehicle travels for a certain period of time. In some embodiments, obtaining the compensated position comprises: when the detection command is received, the compensation position of the brake lining 105 is acquired. The user can decide when to monitor the wear of the brake pads 105 and when the brake system 100 receives the detection command, the brake system 100 obtains the compensated position of the brake pads 105.
FIG. 4 is a flow chart illustrating another embodiment of a brake pad thickness monitoring method 200 according to the present application. The monitoring method 200 further comprises a zeroing step 300, wherein the initial position is corrected to a zero position in the zeroing step 300, and the zeroing step 300 is arranged before the initial position and the compensation position are obtained.
The zeroing procedure 300 includes steps 310, 320, 330 and 340. In step 310, the brake pads 105 are controlled to move and clamp with the brake disc 106. In step 320, a clamping force of the brake pads 105 is acquired. In step 330, if the clamping force reaches the predetermined clamping force, the brake pads 105 are controlled to release from the brake disc 106. In step 340, the current position of the brake pad 105 is acquired, and the current position is set as the initial position. The braking system 100 controls the driving motor 101 to drive the piston 104 to move a preset distance in a direction of approaching the brake pad 105, so that the brake pad 105 clamps the brake disc 106. The preset distance is a distance between the right side of the brake pad 105 and the brake disc 106 in a non-braking state. The brake pads 105 grip the brake disc 106 to effect braking. The brake system 100 detects the clamping force of the brake pads 105, and when a predetermined clamping force is reached, indicating that the electric vehicle is in a braking state, the brake system 100 controls the driving motor 101 to drive the piston 104 to move a predetermined distance away from the brake pads 105. When the electric vehicle is just delivered from a factory or just replaced by the brake pad 105, the position of the brake pad 105 is the initial position.
FIG. 5 is a block diagram illustrating one embodiment of a computer readable storage medium 400 of the present application. The computer-readable storage medium 400 includes a memory 402 and at least one processor 403. At least one processor 403 is electrically connected to the memory 402. The memory 402 stores a computer program 401, which program 401, when executed by the processor 403, implements the monitoring method 200.
Fig. 6 is a block diagram illustrating an embodiment of a monitoring system 500 of the present application. The monitoring system 500 comprises an acquisition module 501 and a processing module 502. The obtaining module 501 is configured to obtain a distance between the initial position and the compensation position. The processing module 502 is configured to send a warning signal when the distance reaches a first threshold; and the alarm device is used for sending an alarm signal and/or a speed limit reminding signal when the distance reaches a second threshold value.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (10)
1. A method of monitoring a thickness of a brake pad of an electric vehicle, the brake pad having an initial position and a compensation position for compensating for an amount of brake wear, the method comprising:
acquiring the distance between the initial position and the compensation position;
and if the distance reaches a first threshold value, sending a reminding signal.
2. The method for monitoring the thickness of the brake friction plate of the electric automobile according to claim 1, wherein the monitoring method further comprises:
if the distance reaches a second threshold value, sending an alarm signal and/or a speed limit reminding signal; the second threshold is greater than the first threshold.
3. The method for monitoring the thickness of the brake friction plate of the electric automobile according to claim 1, wherein the monitoring method further comprises:
a zero calibration step of calibrating the initial position to a zero position, the zero calibration step being provided before the initial position and the compensation position are acquired.
4. The method for monitoring the thickness of the brake friction plate of the electric automobile according to claim 3, wherein the zero calibration step comprises:
controlling the brake friction plate to move and clamp with the brake disc;
acquiring clamping force of the brake friction plate;
if the clamping force reaches a preset clamping force, controlling the brake friction plate to be loosened from the brake disc;
and acquiring the current position of the brake friction plate, and setting the current position as the initial position.
5. The method for monitoring the thickness of the brake friction plate of the electric vehicle according to claim 1, wherein the obtaining the compensation position comprises:
after each braking, acquiring the compensation position of the brake friction plate; or
When the mileage threshold is reached, acquiring the compensation position of the brake friction plate; or
When the braking times reach a threshold value, acquiring the compensation position of the brake friction plate; or
When the running time reaches a threshold value, acquiring a compensation position of the brake friction plate; or
And when a detection instruction is received, acquiring the compensation position of the brake friction plate.
6. The method for monitoring the thickness of the brake friction plate of the electric vehicle according to claim 1, wherein the obtaining the initial position and the compensation position comprises:
and acquiring the initial position and the compensation position of the brake friction plate in a braking state or a non-braking state.
7. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the monitoring method according to any one of claims 1 to 5.
8. A monitoring system, comprising:
the acquisition module is used for acquiring the distance between the initial position and the compensation position; and
the processing module is used for sending a reminding signal when the distance reaches a first threshold value; and the distance monitoring device is used for sending an alarm signal and/or a speed limit reminding signal when the distance reaches a second threshold value.
9. A braking system, comprising:
braking the friction plate;
the piston is connected with the brake friction plate;
the position sensor is used for detecting the initial position and the compensation position of the brake friction plate;
a force sensor, disposed in said piston or said brake pad, for detecting a clamping force of said brake pad;
the alarm is used for sending out an alarm signal; and
the processor is connected with the position sensor and the alarm and is used for controlling the alarm to send a reminding signal when the distance reaches a first threshold value; and the alarm is controlled to send an alarm signal and/or a speed limit reminding signal when the distance reaches a second threshold value.
10. The braking system of claim 9, further comprising a brake disc and a motor assembly, wherein the motor assembly is connected to the processor, the piston is connected to the motor assembly and the brake pad, the motor assembly is configured to drive the piston to move the brake pad to be clamped or released with the brake disc, and the position sensor is disposed on the motor assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211033474.7A CN115230671A (en) | 2022-08-26 | 2022-08-26 | Monitoring method and monitoring system for thickness of brake friction plate and brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211033474.7A CN115230671A (en) | 2022-08-26 | 2022-08-26 | Monitoring method and monitoring system for thickness of brake friction plate and brake system |
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| CN115230671A true CN115230671A (en) | 2022-10-25 |
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| CN202211033474.7A Pending CN115230671A (en) | 2022-08-26 | 2022-08-26 | Monitoring method and monitoring system for thickness of brake friction plate and brake system |
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| DE10240592A1 (en) * | 2002-08-28 | 2004-03-25 | Stromag Ag | Multi layer friction brake for vehicle is operated by a brake cylinder with an automatic adjustment for compensating friction pad wear |
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| CN107830083A (en) * | 2017-10-24 | 2018-03-23 | 隆中控股集团股份有限公司 | A kind of dynamo-electric brake |
| CN214998990U (en) * | 2020-12-17 | 2021-12-03 | 山西江淮重工有限责任公司 | Brake wear alarm device and brake with same |
| CN216102063U (en) * | 2021-05-18 | 2022-03-22 | 沃尔沃汽车公司 | Motor vehicle brake friction plate loss monitoring system |
| CN114572179A (en) * | 2022-02-14 | 2022-06-03 | 岚图汽车科技有限公司 | Method, device and equipment for detecting abrasion of automatic friction plate of vehicle and storage medium |
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2022
- 2022-08-26 CN CN202211033474.7A patent/CN115230671A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10240592A1 (en) * | 2002-08-28 | 2004-03-25 | Stromag Ag | Multi layer friction brake for vehicle is operated by a brake cylinder with an automatic adjustment for compensating friction pad wear |
| CN206246561U (en) * | 2016-12-19 | 2017-06-13 | 金华职业技术学院 | A kind of self-boosting type automobile electromechanical brake |
| CN206972804U (en) * | 2017-07-31 | 2018-02-06 | 北京汽车研究总院有限公司 | Friction plate, brake, wear warning of friction plate system and automobile |
| CN107830083A (en) * | 2017-10-24 | 2018-03-23 | 隆中控股集团股份有限公司 | A kind of dynamo-electric brake |
| CN214998990U (en) * | 2020-12-17 | 2021-12-03 | 山西江淮重工有限责任公司 | Brake wear alarm device and brake with same |
| CN216102063U (en) * | 2021-05-18 | 2022-03-22 | 沃尔沃汽车公司 | Motor vehicle brake friction plate loss monitoring system |
| CN114572179A (en) * | 2022-02-14 | 2022-06-03 | 岚图汽车科技有限公司 | Method, device and equipment for detecting abrasion of automatic friction plate of vehicle and storage medium |
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