CN114435334B - Brake detection method and device and computer storage medium - Google Patents
Brake detection method and device and computer storage medium Download PDFInfo
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- CN114435334B CN114435334B CN202210244845.XA CN202210244845A CN114435334B CN 114435334 B CN114435334 B CN 114435334B CN 202210244845 A CN202210244845 A CN 202210244845A CN 114435334 B CN114435334 B CN 114435334B
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- 230000006870 function Effects 0.000 description 15
- 238000004891 communication Methods 0.000 description 6
- 238000004590 computer program Methods 0.000 description 4
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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Abstract
The invention discloses a brake detection method, a brake detection device and a computer storage medium, relates to the technical field of vehicle detection, and solves the technical problem that whether a user mechanically brakes or not cannot be detected under the condition that a key switch is damaged. The brake detection method comprises the following steps: acquiring a driving current and a running speed of the target vehicle; judging whether the target vehicle is on an uphill road section and whether a load increases in a case where the running speed decreases and the driving current increases; and if the target vehicle is not on the uphill road section and the load is not increased, determining that the target vehicle is in a mechanical braking state.
Description
Technical Field
The present invention relates to the field of vehicle detection technologies, and in particular, to a brake detection method, a brake detection device, and a computer storage medium.
Background
At present, two sets of braking devices are usually arranged in an electric bicycle, one set is mechanically braked, namely, the vehicle is stopped by pressing a brake; the other set is electronic braking, namely, the motor on the vehicle stops working by controlling the driving current.
In the prior art, a key switch is integrated on a vehicle, when a user presses a brake, the key switch is sprung, a motor controller on the vehicle can detect a high-level signal, when the user releases the brake, the key switch is closed, the motor controller can detect a low-level signal, and according to the detected level signal, the motor controller can judge whether the vehicle is in a mechanical braking state or not, so that whether the motor is controlled to stop working is determined.
However, in practical use, the key switch is easily damaged or short-circuited by water, so in order to avoid that the motor controller cannot detect the level signal when the user is riding, those skilled in the art are dedicated to develop a brake detection method, device and computer storage medium that can detect whether the user is mechanically braked in case of damage to the key switch.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the technical problems to be solved by the present invention are: how to detect if a user mechanically brakes in case of a damaged key switch.
In order to achieve the above purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a brake detection method, including: acquiring a driving current and a running speed of the target vehicle; judging whether the target vehicle is on an uphill road section and whether a load increases in a case where the running speed decreases and the driving current increases; and if the target vehicle is not on the uphill road section and the load is not increased, determining that the target vehicle is in a mechanical braking state.
In the embodiment of the invention, under the condition that the running speed of the target vehicle is reduced and the driving current is increased, whether the reason for causing the situation is that the target vehicle is on an uphill road section or the load is increased or not can be judged, and after the two reasons are eliminated, the target vehicle is determined to be in a mechanical braking state, so that even if a key switch is not used, whether a user mechanically brakes or not can be detected, and the potential safety hazard caused by the damage of the key switch is avoided.
In a preferred embodiment of the present invention, the determining whether the target vehicle is on an uphill road section and whether the load is increasing includes: acquiring a first angle and a first load of the target vehicle; determining that the target vehicle is not on an uphill road section when the first angle is not greater than a second angle, and determining that the load of the target vehicle is not increased when the first load is not greater than a second load; the first angle is an angle between the current of the target vehicle and a horizontal plane, and the second angle is an angle between the target vehicle and the horizontal plane, which is acquired under the condition that the running speed is not reduced or the driving current is not increased; the first load is a current load of the target vehicle, and the second load is a load of the target vehicle obtained when the running speed is not reduced or the driving current is not increased.
In a preferred embodiment of the present invention, the acquiring the driving current and the driving speed of the target vehicle includes: and under the condition that the target vehicle is in a constant-speed cruising stage, acquiring the driving current and the running speed of the target vehicle in real time.
In a preferred embodiment of the present invention, the acquiring the driving current and the driving speed of the target vehicle includes: and periodically acquiring the driving current and the running speed of the target vehicle.
In a preferred embodiment of the present invention, after determining that the target vehicle is in a mechanical braking state, the method further includes: the driving current is adjusted to reduce the running speed.
In a preferred embodiment of the present invention, the adjusting the driving current to reduce the driving speed includes: controlling the driving current to be in a cut-off state; alternatively, the drive current is reduced proportionally to the time the target vehicle is in a mechanically braked state.
In a second aspect, the present invention provides a brake detection apparatus comprising: an acquisition unit and a processing unit; the acquisition unit is used for acquiring the driving current and the running speed of the target vehicle; the processing unit is used for judging whether the target vehicle is in an uphill road section and whether the load is increased or not under the condition that the running speed is reduced and the driving current is increased; and if the target vehicle is not on the uphill road section and the load is not increased, determining that the target vehicle is in a mechanical braking state.
In a preferred embodiment of the present invention, the processing unit is specifically configured to: acquiring a first angle and a first load of the target vehicle; determining that the target vehicle is not on an uphill road section when the first angle is not greater than a second angle, and determining that the load of the target vehicle is not increased when the first load is not greater than a second load; the first angle is an angle between the current of the target vehicle and a horizontal plane, and the second angle is an angle between the target vehicle and the horizontal plane, which is acquired under the condition that the running speed is not reduced or the driving current is not increased; the first load is a current load of the target vehicle, and the second load is a load of the target vehicle obtained when the running speed is not reduced or the driving current is not increased.
In a preferred embodiment of the present invention, the acquiring unit is specifically configured to: and under the condition that the target vehicle is in a constant-speed cruising stage, acquiring the driving current and the running speed of the target vehicle in real time.
In a preferred embodiment of the present invention, the acquiring unit is specifically configured to: and periodically acquiring the driving current and the running speed of the target vehicle.
In a preferred embodiment of the present invention, after determining that the target vehicle is in a mechanical braking state, the processing unit is further configured to: the driving current is adjusted to reduce the running speed.
In a preferred embodiment of the present invention, the processing unit is specifically configured to: controlling the driving current to be in a cut-off state; alternatively, the drive current is reduced proportionally to the time the target vehicle is in a mechanically braked state.
In a third aspect, the present invention provides a brake detection apparatus comprising a memory and a processor. The memory is used for storing computer execution instructions, and the processor is connected with the memory through a bus. When the brake detection device is operated, the processor executes computer-executable instructions stored in the memory, so that the brake detection device performs the brake detection method provided in the first aspect and various possible implementation manners thereof.
In a fourth aspect, a computer readable storage medium is provided, the computer readable storage medium comprising computer executable instructions which, when run on a computer, cause a brake detection device to perform the brake detection method provided in the first aspect and its various possible embodiments.
In a fifth aspect, a computer program product is provided, the computer program product comprising computer instructions which, when run on a computer, cause a brake detection device to perform the brake detection method provided in the first aspect and its various possible embodiments.
It should be noted that the above-mentioned computer instructions may be stored in whole or in part on a computer-readable storage medium. The computer readable storage medium may be packaged together with the processor for executing the brake detection device, or may be packaged separately from the processor for executing the brake detection device, which is not limited by the embodiment of the present invention.
The description of the second, third, fourth and fifth aspects of the present invention may refer to the detailed description of the first aspect; moreover, the advantages described in the second aspect, the third aspect, the fourth aspect and the fifth aspect may refer to the analysis of the advantages of the first aspect, and are not described herein.
The conception, specific structure, and technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present invention.
Drawings
FIG. 1 is a schematic flow chart of a brake detection method according to an embodiment of the present invention;
FIG. 2 is a second flow chart of a preferred embodiment of a brake detection method according to the present invention;
FIG. 3 is a schematic diagram of a brake detection device according to an embodiment of the present invention;
FIG. 4 is a second schematic diagram of a brake detecting device according to an embodiment of the present invention.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
It should be noted that, in the embodiments of the present invention, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present invention is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
In order to clearly describe the technical solution of the embodiment of the present invention, in the embodiment of the present invention, the words "first", "second", etc. are used to distinguish identical items or similar items having substantially the same function and effect, and those skilled in the art will understand that the words "first", "second", etc. are not limited in number and execution order.
Some exemplary embodiments of the invention have been described for illustrative purposes, it being understood that the invention may be practiced otherwise than as specifically shown in the accompanying drawings.
In the case where the target vehicle has a constant-speed cruising function, the target vehicle can continue traveling at a constant speed. When the user presses the brake, if the key switch on the target vehicle is damaged, the motor controller cannot detect the change of the level signal, so that the motor controller on the target vehicle increases the driving current instead in order to maintain the constant speed. Therefore, a large amount of electric power cost is consumed, and a great potential safety hazard is caused to the riding process of a user. Based on the above problems, the embodiment of the invention provides a brake detection method, which can detect whether a user mechanically brakes under the condition that a key switch is damaged, so as to determine whether to adjust driving current.
The implementation manner of the brake detection method provided by the embodiment of the invention is explained in detail below with reference to specific embodiments and drawings.
As shown in fig. 1, an embodiment of the present invention provides a brake detection method, which may be applied to a brake detection device. The brake detection device may be a component, integrated circuit, or chip in the target vehicle; or the brake detection device may be a background server communicatively coupled to the target vehicle. The target vehicle may be an electric bicycle. The brake detection method may include: S101-S103:
s101, a brake detection device acquires the driving current and the running speed of a target vehicle.
Alternatively, in the case where the brake detection device is a component in the target vehicle, the brake detection device may monitor the driving current of the target vehicle through the current sensor, monitor the running speed of the target vehicle through the speed sensor, and then acquire the driving current from the current sensor and acquire the running speed from the speed sensor. Alternatively, in the case where the brake detection device is a backend server communicatively connected to the target vehicle, the brake detection device may acquire the drive current and the travel speed from the target vehicle. The driving current refers to a current for driving the motor operation in the target vehicle, and the running speed refers to an instantaneous speed of the target vehicle.
Optionally, the brake detection device may acquire the driving current and the running speed of the target vehicle in real time when the target vehicle is in the constant-speed cruising stage; the driving current and the running speed of the target vehicle may also be periodically acquired. That is, in the case where it is determined that the target vehicle starts the constant-speed-cruising function, the brake detection device can acquire the driving current and the running speed in real time; or, the brake detection device can directly and periodically acquire the driving current and the running speed of the target vehicle without determining whether the target vehicle starts the constant-speed cruising function. Therefore, the running memory of the brake detection device can be saved, and more targeted driving current and running speed can be obtained.
S102, in the case where the traveling speed decreases and the driving current increases, the brake detection device determines whether the target vehicle is on an uphill road section and whether the load increases.
Optionally, one implementation manner is: the brake detection device may determine whether the running speed is reduced according to the acquired running speed at the adjacent time, and determine whether the driving current is increased according to the acquired driving current at the adjacent time. For example, taking the running speed as an example, the brake detection device acquires the running speed 1 at the time 1 and acquires the running speed 2 at the time 2, and if the running speed 1 is greater than the running speed 2, it can be determined that the running speed is reduced; if the running speed 1 is less than or equal to the running speed 2, it may be determined that the running speed is not reduced. Another implementation is: the brake detection device can determine whether the running speed is in a descending trend according to the obtained running speed in the preset time period, namely, whether the running speed is reduced or not is judged, and whether the driving current is in an ascending trend or not is determined according to the obtained driving current in the preset time period, namely, whether the driving current is increased or not is judged. For example, taking the running speed as an example, if the preset time period is 1 minute, the brake detection device can obtain 60 running speeds within 1 minute, and the brake detection device can determine whether the running speed is in an ascending trend or in a descending trend according to a graph formed by the 60 running speeds.
If the running speed of the target vehicle decreases but the driving current increases, it is indicated that the load of the target vehicle becomes large, and the cause of the increase in the load of the target vehicle may include the following three cases: the first case is that the target vehicle is on an uphill road section, and the load of the target vehicle becomes large due to the influence of gravity; the second case is that the load on the target vehicle changes, for example, the user puts a heavy object on the vehicle halfway. As the load increases, the friction between the target vehicle and the ground increases, so that the load of the target vehicle increases; the third case is that the user mechanically brakes to increase the friction between the brake pad and the wheel, thereby increasing the load of the target vehicle. Therefore, in order to determine whether the cause of the decrease in the running speed of the target vehicle and the increase in the drive current is caused by the mechanical braking of the user, it may be judged whether the target vehicle is on an uphill road section and whether the load increases, that is, whether the user mechanically brakes by the elimination method.
Alternatively, the target vehicle may include an acceleration sensor and a scale. The brake detection device can detect a first angle through the acceleration sensor and detect a first load through the weighing device. Then the brake detection device can acquire the first angle and the first load; then, judging the magnitude relation between the first angle and the second angle and the magnitude relation between the first load and the second load, determining that the target vehicle is not on an uphill road section under the condition that the first angle is not larger than the second angle, and determining that the load of the target vehicle is not increased under the condition that the first load is not larger than the second load; the first angle is an angle between the current of the target vehicle and the horizontal plane, and the second angle is an angle between the target vehicle and the horizontal plane, which is acquired under the condition that the running speed is not reduced or the driving current is not increased; the first load is a current load of the target vehicle, and the second load is a load of the target vehicle obtained when the running speed is not reduced or the driving current is not increased.
After acquiring the angle detected by the acceleration sensor in real time, the brake detection device needs to screen a second angle from a plurality of angles acquired in real time according to the running speed and the driving current; similarly, after the load that the weighing device detected in real time is obtained, the brake detection device needs to screen out the second load from the plurality of loads obtained in real time according to the running speed and the driving current.
And S103, if the target vehicle is not on an uphill road section and the load is not increased, the brake detection device determines that the target vehicle is in a mechanical brake state.
For example, as shown in fig. 2, after determining that the traveling speed of the target vehicle decreases but the driving current increases, the brake detection device may first determine whether the target vehicle is on an uphill road section, if not on the uphill road section, continue to determine whether the load of the target vehicle increases, and if not, determine that the user performs the mechanical brake operation on the target vehicle.
Alternatively, the brake detection means may adjust the drive current to reduce the running speed after determining that the target vehicle is in the mechanical brake state. Specifically, the brake detection device may control the driving current to be in a cut-off state, that is, stop supplying the current as long as it is determined that the target vehicle is in a mechanical brake state; alternatively, the brake detection means may reduce the drive current proportionally according to the time when the target vehicle is in the mechanical braking state. That is, if the user presses the brake only briefly, it is possible to slow down the target vehicle, and thus the driving current can be reduced proportionally according to the time of the mechanical braking state. For example, if the initial drive current is 10A, the drive current may be adjusted to 9A when the brake detection device detects that the target vehicle is in the mechanical brake state for 1 second, and the drive current may be adjusted to 6A when the brake detection device detects that the target vehicle is in the mechanical brake state for 3 seconds again.
In the embodiment of the invention, under the condition that the running speed of the target vehicle is reduced and the driving current is increased, whether the reason for causing the situation is that the target vehicle is on an uphill road section or the load is increased or not can be judged, and after the two reasons are eliminated, the target vehicle is determined to be in a mechanical braking state, so that even if a key switch is not used, whether a user mechanically brakes or not can be detected, and the potential safety hazard caused by the damage of the key switch is avoided.
The foregoing description of the solution provided in the embodiments of the present application has been mainly presented in terms of a method. To achieve the above functions, it includes corresponding hardware structures and/or software modules that perform the respective functions. Those of skill in the art will readily appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
According to the brake detection method provided by the embodiment of the application, the execution main body can be a brake detection device or a control module for brake detection in the brake detection device. In this embodiment of the present application, a brake detection device provided in this embodiment of the present application is described by taking a brake detection method performed by the brake detection device as an example.
It should be noted that, in the embodiment of the present application, the brake detection device may be divided into functional modules according to the above method example, for example, each functional module may be divided into functional modules corresponding to each function, or two or more functions may be integrated into one processing module. The integrated modules may be implemented in hardware or in software functional modules. Optionally, the division of the modules in the embodiments of the present application is schematic, which is merely a logic function division, and other division manners may be actually implemented.
As shown in fig. 3, an embodiment of the present application provides a brake detection device 300. The brake detecting apparatus 300 includes: an acquisition unit 301 and a processing unit 302. The acquisition unit 301 may be configured to acquire a driving current and a running speed of the target vehicle; the processing unit 302 may be configured to determine whether the target vehicle is on an uphill road section and whether a load increases in a case where the running speed decreases and the driving current increases; and if the target vehicle is not on the uphill road section and the load is not increased, determining that the target vehicle is in a mechanical braking state.
Optionally, the processing unit 302 may specifically be configured to: acquiring a first angle and a first load of the target vehicle; determining that the target vehicle is not on an uphill road section when the first angle is not greater than a second angle, and determining that the load of the target vehicle is not increased when the first load is not greater than a second load; the first angle is an angle between the current of the target vehicle and a horizontal plane, and the second angle is an angle between the target vehicle and the horizontal plane, which is acquired under the condition that the running speed is not reduced or the driving current is not increased; the first load is a current load of the target vehicle, and the second load is a load of the target vehicle obtained when the running speed is not reduced or the driving current is not increased.
Alternatively, the above-mentioned acquisition unit 301 may be specifically configured to: and under the condition that the target vehicle is in a constant-speed cruising stage, acquiring the driving current and the running speed of the target vehicle in real time.
Alternatively, the above-mentioned acquisition unit 301 may be specifically configured to: and periodically acquiring the driving current and the running speed of the target vehicle.
Optionally, after determining that the target vehicle is in a mechanical braking state, the processing unit 302 may be further configured to: the driving current is adjusted to reduce the running speed.
Optionally, the processing unit 302 may specifically be configured to: controlling the driving current to be in a cut-off state; alternatively, the drive current is reduced proportionally to the time the target vehicle is in a mechanically braked state.
Of course, the brake detection device 300 provided in the embodiment of the present application includes, but is not limited to, the above units.
According to the brake detection device provided by the embodiment of the invention, under the condition that the running speed of the target vehicle is reduced and the driving current is increased, whether the reason for causing the situation is that the target vehicle is on an ascending road section or the load is increased or not can be judged, and after the two reasons are eliminated, the target vehicle is determined to be in a mechanical brake state, so that whether a user mechanically brakes or not can be detected even though a key switch is not used, and potential safety hazards caused by damage of the key switch are avoided.
The embodiment of the application also provides a brake detection device as shown in fig. 4, which comprises a processor 11, a memory 12, a communication interface 13 and a bus 14. The processor 11, the memory 12 and the communication interface 13 may be connected by a bus 14.
The processor 11 is a control center of the brake detecting device, and may be one processor or a collective name of a plurality of processing elements. For example, the processor 11 may be a general-purpose central processing unit (central processing unit, CPU), or may be another general-purpose processor. Wherein the general purpose processor may be a microprocessor or any conventional processor or the like.
As an example, processor 11 may include one or more CPUs, such as CPU 0 and CPU 1 shown in fig. 4.
In a possible implementation, the memory 12 may exist separately from the processor 11, and the memory 12 may be connected to the processor 11 through the bus 14 for storing instructions or program code. When the processor 11 invokes and executes the instructions or the program codes stored in the memory 12, the deployment method of the service function chain provided in the embodiment of the present application can be implemented.
In another possible implementation, the memory 12 may also be integrated with the processor 11.
A communication interface 13 for connecting with other devices via a communication network. The communication network may be an ethernet, a radio access network, a wireless local area network (wireless local area networks, WLAN), etc. The communication interface 13 may include a receiving unit for receiving data, and a transmitting unit for transmitting data.
It should be noted that the structure shown in fig. 4 is not limited to the brake detecting device. The brake sensing device may include more or less components than shown in fig. 4, or certain components may be combined, or a different arrangement of components.
The embodiments of the present invention also provide a computer-readable storage medium including computer-executable instructions. When the computer executes instructions on the computer, the computer is caused to execute the steps executed by the brake detection device in the brake detection method provided in the above embodiment.
The embodiment of the invention also provides a computer program product which can be directly loaded into a memory and contains software codes, and the computer program product can realize the brake detection method provided by the embodiment after being loaded and executed by a computer, and execute each step executed by the brake detection device.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising several instructions for causing a terminal to perform the method according to the embodiments of the present invention.
The above embodiments are merely illustrative of the principles and functions of the present invention, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims of this invention, which are within the skill of those skilled in the art, can be made without departing from the spirit and scope of the invention disclosed herein.
Claims (8)
1. A brake detection method, comprising:
acquiring a driving current and a running speed of a target vehicle;
judging whether the target vehicle is on an uphill road section and whether a load increases in a case where the running speed decreases and the driving current increases;
if the target vehicle is not on an uphill road section and the load is not increased, determining that the target vehicle is in a mechanical braking state without the aid of a key switch;
the driving current is adjusted to reduce the running speed.
2. The brake detecting method according to claim 1, wherein the determining whether the target vehicle is on an ascending road section and whether a load increases includes:
acquiring a first angle and a first load of the target vehicle;
determining that the target vehicle is not on an uphill road section when the first angle is not greater than a second angle, and determining that the load of the target vehicle is not increased when the first load is not greater than a second load;
the first angle is an angle between the current of the target vehicle and a horizontal plane, and the second angle is an angle between the target vehicle and the horizontal plane, which is acquired under the condition that the running speed is not reduced or the driving current is not increased; the first load is a current load of the target vehicle, and the second load is a load of the target vehicle obtained when the running speed is not reduced or the driving current is not increased.
3. The brake detection method according to claim 1, wherein the obtaining the driving current and the running speed of the target vehicle includes:
and under the condition that the target vehicle is in a constant-speed cruising stage, acquiring the driving current and the running speed of the target vehicle in real time.
4. The brake detection method according to claim 1, wherein the obtaining the driving current and the running speed of the target vehicle includes: and periodically acquiring the driving current and the running speed of the target vehicle.
5. The brake detection method according to claim 1, wherein the adjusting the drive current to reduce the running speed includes:
controlling the driving current to be in a cut-off state; or,
the drive current is reduced proportionally to the time the target vehicle is in a mechanically braked state.
6. A brake detection device, comprising: an acquisition unit and a processing unit;
the acquisition unit is used for acquiring the driving current and the running speed of the target vehicle;
the processing unit is used for judging whether the target vehicle is in an uphill road section and whether the load is increased or not under the condition that the running speed is reduced and the driving current is increased; if the target vehicle is not on an uphill road section and the load is not increased, determining that the target vehicle is in a mechanical braking state without the aid of a key switch;
the processing unit is further configured to: the driving current is adjusted to reduce the running speed.
7. The brake detection device is characterized by comprising a memory and a processor; the memory is used for storing computer execution instructions, and the processor is connected with the memory through a bus;
when the brake detection device is operated, the processor executes the computer-executable instructions stored in the memory to cause the brake detection device to perform the brake detection method as claimed in any one of claims 1 to 5.
8. A computer readable storage medium comprising computer executable instructions which, when run on a computer, cause the computer to perform the brake detection method of any one of claims 1-5.
Priority Applications (1)
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