CN115743079A - Brake control method, device, equipment and storage medium - Google Patents
Brake control method, device, equipment and storage medium Download PDFInfo
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Abstract
The invention discloses a brake control method, a brake control device, brake control equipment and a storage medium, wherein the brake control method comprises the following steps: acquiring the temperature of the brake disc, and judging whether the temperature of the brake disc is greater than a set threshold value or not; if the temperature of the brake disc is larger than a set threshold value, judging whether the windshield wiper gear is larger than the set gear, if so, not acquiring a brake control signal, generating a first brake pressure according to the windshield wiper gear, and simultaneously braking all wheels of the vehicle according to the first brake pressure; if the temperature of the brake disc is smaller than the set threshold value, a brake control signal is not acquired, and second brake pressure is generated according to the temperature of the brake disc; and dividing the braking time interval into a plurality of time intervals, and braking different groups of wheels according to the second braking pressure in different time intervals according to the time sequence.
Description
Technical Field
The embodiment of the invention relates to vehicle engineering technology, in particular to a brake control method, a brake control device, brake control equipment and a storage medium.
Background
When the automobile runs in rainy days, a layer of water film can be formed on the brake disc, so that the friction force between the friction plate and the brake disc is reduced, the response speed of a brake system of the automobile is weakened, the braking distance of the automobile is increased, and the danger is brought to a driver.
Based on the above, a control method is needed to ensure the performance of the braking system in rainy and snowy weather and to ensure the stability and safety of the vehicle in the driving process in rainy and snowy weather.
Disclosure of Invention
The invention provides a brake control method, a brake control device, brake control equipment and a storage medium, which aim to improve the safety of a vehicle in running in a rainy or snowy environment.
In a first aspect, an embodiment of the present invention provides a brake control method, including:
acquiring the temperature of a brake disc, and judging whether the temperature of the brake disc is greater than a set threshold value or not;
if the temperature of the brake disc is larger than the set threshold, judging whether a windshield wiper gear is larger than a set gear, if the windshield wiper gear is larger than the set gear, if a brake control signal is not acquired, generating a first brake pressure according to the windshield wiper gear, and simultaneously braking all wheels of the vehicle according to the first brake pressure;
if the temperature of the brake disc is smaller than the set threshold value, if a brake control signal is not acquired, generating a second brake pressure according to the temperature of the brake disc;
and dividing the braking time interval into a plurality of time intervals, and braking different groups of wheels according to the second braking pressure in different time intervals according to the time sequence.
Optionally, when the brake disc temperature is greater than the set threshold, the method further includes: judging whether the vehicle speed is greater than a first vehicle speed;
and if the vehicle speed is greater than the first vehicle speed and the windshield wiper gear is greater than a set gear, simultaneously braking all wheels of the vehicle according to the first brake pressure when a brake control signal is acquired.
Optionally, when the brake disc temperature is less than the set threshold, the method further includes: judging whether the vehicle speed is greater than a second vehicle speed;
and if the vehicle speed is greater than the second vehicle speed, braking different groups of wheels according to the second brake pressure in different time intervals.
Optionally, when the vehicle speed is greater than the first vehicle speed, the method further includes: judging whether the vehicle speed is continuously greater than the first vehicle speed;
if the vehicle speed is continuously greater than the first vehicle speed and meets the set duration, and the windshield wiper gear is greater than the set gear, all wheels of the vehicle are braked simultaneously according to the first brake pressure when a brake control signal is acquired.
Optionally, the first brake pressure comprises 3bar.
Optionally, the second brake pressure comprises 10bar.
Optionally, the set threshold comprises-1 degree celsius.
In a second aspect, an embodiment of the present invention further provides a brake control apparatus, including a brake control unit, configured to:
acquiring the temperature of a brake disc, and judging whether the temperature of the brake disc is greater than a set threshold value or not;
if the temperature of the brake disc is larger than the set threshold value, judging whether a windshield wiper gear is larger than a set gear, if so, generating a first brake pressure according to the windshield wiper gear when a brake control signal is acquired, and simultaneously braking all wheels of the vehicle according to the first brake pressure;
if the temperature of the brake disc is smaller than the set threshold value, generating a second brake pressure according to the temperature of the brake disc when a brake control signal is acquired;
and dividing the braking time interval into a plurality of time intervals, and braking different groups of wheels according to the second braking pressure in different time intervals according to the time sequence.
In a third aspect, an embodiment of the present invention further provides an electronic device, including at least one processor, and a memory communicatively connected to the at least one processor;
the memory stores a computer program executable by the at least one processor, the computer program being executable by the at least one processor to enable the at least one processor to perform the braking control method according to an embodiment of the present invention.
In a fourth aspect, the embodiment of the present invention further provides a computer-readable storage medium, where computer instructions are stored, and the computer instructions are used for enabling a processor to implement the braking control method described in the embodiment of the present invention when executed.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a brake control method, which comprises the steps of generating a first brake pressure or a second brake pressure according to the temperature of a brake disc and the position of a windshield wiper, and applying the first brake pressure or the second brake pressure to the brake disc to achieve the purpose of removing a water film or an ice film on the surface of the brake disc. Specifically, when the brake control signal is not acquired, when the temperature of the brake disc is greater than a set threshold value and the windshield wiper gear is greater than a set gear, the friction plate and the brake disc are subjected to friction under a first brake pressure to remove a water film, so that the surface of the brake disc is free of the water film when the brake control signal is acquired, and the problem of insufficient braking or failure is avoided; when the brake disc temperature was less than the settlement threshold value, the affirmation brake disc surface had the ice film, when for gathering braking control signal, made friction disc and brake disc realize the friction under second brake pressure to the ice film is got rid of in the realization, and then guarantees when gathering braking control signal, and there is not the ice film in the surface of brake disc, avoids the not enough or problem that became invalid of braking. In addition, in the method, the second brake pressure is set to be greater than the first brake pressure, different control modes are adopted in the process of removing the water films and the ice films, specifically, the water films are easy to remove, so that the first brake pressure is smaller, the influence on the vehicle speed is smaller when the first brake pressure is applied, and at the moment, the first brake pressure is applied to all brake discs simultaneously, so that the purpose of removing the water films on the surfaces of all the brake discs in a short time is achieved; because the ice film is difficult to remove relative to the water film, the factor second brake pressure is large, and the influence on the vehicle speed is large when the second brake pressure is applied, at the moment, the second brake pressure is applied to the brake disc in batches, so that the problem that the driver feels uncomfortable due to the fact that the vehicle speed is greatly reduced and the brake disc is not comfortable when the second brake pressure is applied to all brake discs simultaneously is avoided.
Drawings
FIG. 1 is a flowchart of a brake control method in the embodiment;
FIG. 2 is a flow chart of another braking control method in an embodiment;
fig. 3 is a block diagram of an electronic device in the embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings, not all of them.
Example one
Fig. 1 is a flowchart of a brake control method in the embodiment, and referring to fig. 1, the brake control method includes:
s101, obtaining the temperature of the brake disc, and judging whether the temperature of the brake disc is larger than a set threshold value.
For example, in the embodiment, the set threshold is less than zero degrees, and the specific value can be set freely according to experience or requirements.
In one possible embodiment, the set threshold is set at-1 degree Celsius.
For example, in the present embodiment, the brake disc temperature may be acquired by a brake disc temperature sensor.
S102, if the temperature of the brake disc is larger than a set threshold value, judging whether the windshield wiper gear is larger than the set gear, if the windshield wiper gear is larger than the set gear, not acquiring a braking control signal, generating a first braking pressure according to the windshield wiper gear, and simultaneously braking all wheels of the vehicle according to the first braking pressure.
For example, in this embodiment, it is determined whether the temperatures of all the brake disks (brake disk temperatures) are greater than a set threshold, and if the temperatures of all the brake disks are greater than the set threshold, the subsequent content in step S102 is continuously executed.
For example, in this embodiment, the set gear is greater than the second gear, and the specific gear can be freely set according to experience or requirements.
For example, in the present embodiment, the brake control signal may be a brake pedal actuation signal when the driver depresses the brake pedal, or a control signal when an active brake control function configured in the vehicle (for example, an active/auxiliary brake function configured in a controller such as ABS, VDC, HBA, AVH) is activated.
In the present embodiment, the brake pressure is used to indicate the brake pressure generated by the wheel brake cylinder when the vehicle brakes, and accordingly, the first brake pressure indicates the brake pressure matching the windshield wiper position.
For example, in the present embodiment, the matching relationship between the wiper position and the first brake pressure may be determined by a calibration test.
For example, in this step, during braking, the brake pressures applied to the brake disks (brake wheel cylinders) are the same and the application times are the same, that is, all the wheels of the vehicle are braked simultaneously.
And S103, if the temperature of the brake disc is smaller than a set threshold value, if the brake control signal is not acquired, generating a second brake pressure according to the temperature of the brake disc.
For example, in this embodiment, it is determined whether the temperature of at least one brake disc is smaller than a set threshold, and if the temperature of at least one brake disc is smaller than the set threshold, the subsequent content in step S103 is continuously executed.
For example, in the present embodiment, the correspondence relationship between the brake disc temperature and the second brake pressure may be determined through a calibration test.
For example, in the present embodiment, the second brake pressure is set to be greater than the first brake pressure.
And S104, dividing the braking time interval into a plurality of time intervals, and braking different groups of wheels according to the second braking pressure in different time intervals according to the time sequence.
On the basis of the step S103, in this step, according to the second brake pressure corresponding to the temperature of the brake disc, the brake control of different sets of wheels is realized in batches;
for example, the vehicle is configured with four wheels, wherein the rear left and right wheels are set as a first set of wheels (driving wheels), the front left and right wheels are set as a second set of wheels (driven wheels), the braking period is divided into a first time interval and a second time interval, the first set of wheels is braked in the first time interval, and the second set of wheels is braked in the second time interval.
The present embodiment proposes a brake control method in which a first brake pressure or a second brake pressure is generated according to a brake disc temperature and a wiper position, and the first brake pressure or the second brake pressure is applied to the brake disc to remove a water film or an ice film on the surface of the brake disc. Specifically, when the brake control signal is not acquired, when the temperature of the brake disc is greater than a set threshold value and the windshield wiper gear is greater than a set gear, the friction plate and the brake disc are subjected to friction under a first brake pressure to remove a water film, so that the surface of the brake disc is ensured to have no water film when the brake control signal is acquired, and the problem of insufficient braking or failure is avoided; when the brake disc temperature is less than the set threshold value, the ice film is on the affirmation brake disc surface, when being gathering braking control signal, makes friction disc and brake disc realize the friction under second brake pressure to the realization gets rid of the ice film, and then guarantees when gathering braking control signal, and the ice film does not exist on the surface of brake disc, avoids the problem of braking not enough or inefficacy. In addition, in the method, the second brake pressure is set to be greater than the first brake pressure, different control modes are adopted in the process of removing the water films and the ice films, specifically, the water films are easy to remove, so that the first brake pressure is smaller, the influence on the vehicle speed is smaller when the first brake pressure is applied, and at the moment, the first brake pressure is applied to all brake discs simultaneously, so that the purpose of removing the water films on the surfaces of all the brake discs in a short time is achieved; because the ice film is difficult to remove relative to the water film, the factor second brake pressure is large, and the influence on the vehicle speed is large when the second brake pressure is applied, at the moment, the second brake pressure is applied to the brake disc in batches, so that the problem that the driver feels uncomfortable due to the fact that the vehicle speed is greatly reduced and the brake disc is not comfortable when the second brake pressure is applied to all brake discs simultaneously is avoided.
As an embodiment, the determining that the brake disk temperature is greater than the set threshold value based on the content of step S102 further includes: and judging whether the vehicle speed is greater than the first vehicle speed.
In the scheme, the first vehicle speed is set to be at least greater than 10km/h, and the specific value can be set freely according to experience or requirements or determined through calibration tests.
For example, in the present embodiment, the vehicle speed may be adopted by the wheel speed sensor.
In the scheme, if the temperature of the brake disc is greater than a set threshold value, the speed of the vehicle is greater than a first speed of the vehicle, and the gear of the windshield wiper is greater than a set gear, all wheels of the vehicle are simultaneously braked according to first brake pressure when a brake control signal is acquired.
Further, in this aspect, when the vehicle speed is greater than the first vehicle speed, the method further includes: judging whether the vehicle speed is continuously greater than a first vehicle speed;
if the temperature of the brake disc is greater than a set threshold value, the speed of the vehicle is continuously greater than the first speed of the vehicle, the set time duration is met, and the gear of the windshield wiper is greater than the set gear, all wheels of the vehicle are braked simultaneously according to the first brake pressure when the brake control signal is acquired.
For example, in the present embodiment, the set time period is at least 120 seconds, and the specific value thereof can be freely set according to experience or requirements.
As an embodiment, on the basis of the contents described in steps S103 and S104, when the brake disc temperature is determined to be less than the set threshold, the method further includes: and judging whether the vehicle speed is greater than a second vehicle speed.
In the scheme, the first vehicle speed is set to be at least greater than 20km/h, and the specific value can be freely set according to experience or requirements or determined through calibration tests.
For example, in the present embodiment, the vehicle speed may be adopted by a wheel speed sensor.
In the scheme, if the temperature of the brake disc is smaller than the set threshold value and the vehicle speed is larger than the second vehicle speed, different groups of wheels are braked in batches according to the second brake pressure when the brake control signal is acquired.
As an embodiment, on the basis of the content described in step S102, the first brake pressure is set to a fixed value, and the first brake pressure is specifically set to 3bar.
As an embodiment, on the basis of the content described in step S103, the second brake pressure is set to a fixed value, and the second brake pressure is specifically set to 10bar.
For example, the solutions described in this embodiment can be freely combined, fig. 2 is another flow chart of a braking control method in the embodiment, and referring to fig. 2, for example, as an implementable solution, the braking control method may be:
s201, obtaining the temperature of the brake disc, and judging whether the temperature of the brake disc is larger than a set threshold value.
In the scheme, the set threshold is set to be minus 1 ℃.
S202, if the temperature of the brake disc is larger than a set threshold value, whether the windshield wiper gear is larger than a set gear or not and whether the vehicle speed is continuously larger than a first vehicle speed or not are judged.
In the scheme, a set gear is set to be a third gear, and a first vehicle speed is set to be 10km/h.
S203, if the speed of the vehicle is continuously greater than the first speed of the vehicle, the set duration is met, and the windshield wiper gear is greater than the set gear, if the brake control signal is not acquired, all wheels of the vehicle are braked simultaneously according to the first brake pressure.
In the scheme, the set time is set to be 120 seconds, and the first brake pressure is set to be 3bar.
In the scheme, the duration of the first brake pressure action and the brake disc is set to be 2 seconds, and after 2 seconds, if a brake control signal is acquired, the wheel is braked according to the brake pressure corresponding to the brake control signal;
if the braking control signal is acquired in the process of applying the first braking pressure (namely within 2 seconds), the first braking pressure is stopped being applied to the brake disc, and meanwhile, the corresponding braking pressure is generated and applied to the brake disc according to the braking control signal.
And S204, if the temperature of the brake disc is smaller than a set threshold value, if the brake control signal is not acquired, generating a second brake pressure according to the temperature of the brake disc.
In the scheme, the second brake pressure is set to be 10bar.
S205, the braking time interval is divided into a plurality of time intervals, and different groups of wheels are braked according to the second braking pressure in different time intervals according to the time sequence.
In the scheme, a first time interval (the duration is 3 seconds) and a second time interval (the duration is 3 seconds) are set, the rear left wheel and the rear right wheel are set as a first group of wheels, and the front left wheel and the front right wheel are set as a second group of wheels.
In this scheme, in first time interval, second brake pressure effect and the brake disc of first group wheel, and at this moment, the pressure on the brake disc of second group wheel is zero, and 3 seconds back, in second time interval, second brake pressure effect and the brake disc of second group wheel, and at this moment, the pressure on the brake disc of first group wheel is zero.
In the scheme, after the braking time period (namely 6 seconds), if the braking control signal is acquired, the wheel is braked according to the braking pressure corresponding to the braking control signal;
if the brake control signal is acquired during the process of applying the second brake pressure (i.e. within 6 seconds), the application of the second brake pressure to the brake disc is stopped, and meanwhile, the corresponding brake pressure is generated and applied to the brake disc according to the brake control signal.
Example two
The present embodiment proposes a brake control apparatus including a brake control unit configured to:
acquiring the temperature of a brake disc, and judging whether the temperature of the brake disc is greater than a set threshold value or not;
if the temperature of the brake disc is greater than a set threshold value, judging whether the windshield wiper gear is greater than the set gear, if so, generating a first brake pressure according to the windshield wiper gear when a brake control signal is acquired, and simultaneously braking all wheels of the vehicle according to the first brake pressure;
if the temperature of the brake disc is smaller than a set threshold value, generating a second brake pressure according to the temperature of the brake disc when a brake control signal is acquired;
and dividing the braking time interval into a plurality of time intervals, and braking different groups of wheels according to the second braking pressure in different time intervals according to the time sequence.
For example, in this embodiment, a downhill control unit may be specifically configured to implement any one of the downhill control methods described in the first embodiment, and the specific content and beneficial effects of the method are the same as those correspondingly described in the first embodiment, which are not described herein again.
In this embodiment, the Brake Control unit is disposed in an Integrated Brake Control (IBC), and the IBC may be configured to have the following functions:
brake control switch function: specifically, the IBC receives the brake control on/off command, executes the (any one of the first embodiment) brake control method when the brake control function is on, and prohibits the (any one of the first embodiment) brake control method when the brake control function is off;
a memory function: specifically, the IBC stores a brake control function on state before powering off, and after powering on again, the IBC determines whether the brake control method (according to any one of the first embodiment) can be executed currently according to the stored brake control function on state;
a driving mode judging function: specifically, the IBC receives a driving mode transmitted from a Driver Monitoring System (DMS), determines whether the driving mode is a snow mode, executes a complete brake control method (for example, the brake control method shown in fig. 1 or 2) when the driving mode is in the snow mode, and does not execute a corresponding step (for example, only the contents described in step S101 and step S102 in fig. 1) when the brake disc temperature is less than a set threshold value when the driving mode is in a non-snow mode.
In this embodiment, the content executed when the brake disc temperature is greater than the set threshold may be specifically set as the wiping function, and the content executed when the brake disc temperature is less than the set threshold is set as the warming function, taking the scheme shown in fig. 1 as an example, the IBC may be configured to implement switching between four operating states of standby, disabled, wiping function, warming function according to the following strategies:
when the brake control function is closed, the brake control function enters a forbidden state, and when the brake control function is opened, the brake control function enters a standby state;
if the brake control function is started, the driving mode is in the snow mode, and the IBC has no fault and no intervention of the active brake control function, the state is converted from the forbidden state to the standby state;
or if the brake control function is started, the driving mode is in a non-snowfield mode, the IBC has no fault, no active brake control function is intervened, and the wiper gear is in a 3-gear or above state, the state is converted from a forbidden state to a standby state;
the IBC can detect the temperature of the brake disc after entering a standby state, and if the temperature of any brake disc is detected to be lower than a set threshold value and the driving mode is in a snow mode, a temperature increasing function is executed;
the IBC can detect the temperature of the brake disc after entering a standby state, and if the temperature of all the brake discs is detected to be higher than a set threshold value, a wiping function is executed;
after the wiping and warming functions are executed for one time, entering a standby state;
and if the driver steps on the brake pedal, other active brake control function is intervened, the IBC fails or the brake control function is closed, the disabled state is entered.
EXAMPLE III
FIG. 3 illustrates a block diagram of an electronic device 10 that may be used to implement an embodiment of the invention. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital assistants, cellular phones, smart phones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.
As shown in fig. 3, the electronic device 10 includes at least one processor 11, and a memory communicatively connected to the at least one processor 11, such as a Read Only Memory (ROM) 12, a Random Access Memory (RAM) 13, and the like, wherein the memory stores a computer program executable by the at least one processor, and the processor 11 can perform various suitable actions and processes according to the computer program stored in the Read Only Memory (ROM) 12 or the computer program loaded from a storage unit 18 into the Random Access Memory (RAM) 13. In the RAM 13, various programs and data necessary for the operation of the electronic apparatus 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other via a bus 14. An input/output (I/O) interface 15 is also connected to bus 14.
A number of components in the electronic device 10 are connected to the I/O interface 15, including: an input unit 16 such as a keyboard, a mouse, or the like; an output unit 17 such as various types of displays, speakers, and the like; a storage unit 18 such as a magnetic disk, an optical disk, or the like; and a communication unit 19 such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information/data with other devices via a computer network such as the internet and/or various telecommunication networks.
The processor 11 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various dedicated Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, a Digital Signal Processor (DSP), and any suitable processor, controller, microcontroller, and so forth. The processor 11 performs the various methods and processes described above, such as a brake control method.
In some embodiments, the braking control method may be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as the storage unit 18. In some embodiments, part or all of the computer program may be loaded and/or installed onto the electronic device 10 via the ROM 12 and/or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the braking control method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to perform the braking control method by any other suitable means (e.g., by means of firmware).
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuitry, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), system on a chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs that are executable and/or interpretable on a programmable system including at least one programmable processor, which may be special or general purpose, receiving data and instructions from, and transmitting data and instructions to, a storage system, at least one input device, and at least one output device.
Computer programs for implementing the methods of the present invention can be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be performed. A computer program can execute entirely on a machine, partly on a machine, as a stand-alone software package partly on a machine and partly on a remote machine or entirely on a remote machine or server.
In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. A computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which a user can provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic, speech, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a back-end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back-end, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.
The computing system may include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical host and VPS service are overcome.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A brake control method, characterized by comprising:
acquiring the temperature of a brake disc, and judging whether the temperature of the brake disc is greater than a set threshold value or not;
if the temperature of the brake disc is larger than the set threshold, judging whether a windshield wiper gear is larger than a set gear, if so, generating a first brake pressure according to the windshield wiper gear and simultaneously braking all wheels of the vehicle according to the first brake pressure, and if not, acquiring a brake control signal;
if the temperature of the brake disc is smaller than the set threshold value, a brake control signal is not acquired, and second brake pressure is generated according to the temperature of the brake disc;
and dividing the braking time interval into a plurality of time intervals, and braking different groups of wheels according to the second braking pressure in different time intervals according to the time sequence.
2. The brake control method according to claim 1, wherein when the brake disc temperature is greater than the set threshold value, further comprising: judging whether the vehicle speed is greater than a first vehicle speed;
and if the vehicle speed is greater than the first vehicle speed and the windshield wiper gear is greater than a set gear, simultaneously braking all wheels of the vehicle according to the first brake pressure when a brake control signal is acquired.
3. The brake control method according to claim 1, wherein when the brake disc temperature is less than the set threshold value, further comprising: judging whether the vehicle speed is greater than a second vehicle speed;
and if the vehicle speed is greater than the second vehicle speed, braking different groups of wheels according to the second brake pressure in different time intervals.
4. The brake control method according to claim 2, characterized in that when the vehicle speed is greater than a first vehicle speed, further comprising: judging whether the vehicle speed is continuously greater than the first vehicle speed;
if the vehicle speed is continuously greater than the first vehicle speed and meets the set duration, and the windshield wiper gear is greater than the set gear, all wheels of the vehicle are braked simultaneously according to the first brake pressure when a brake control signal is acquired.
5. A brake control method according to claim 1, characterized in that the first brake pressure comprises 3bar.
6. A brake control method according to claim 1, characterized in that the second brake pressure comprises 10bar.
7. A brake control method according to claim 1, characterized in that the set threshold comprises-1 degree celsius.
8. A brake control apparatus, characterized by comprising a brake control unit for:
acquiring the temperature of a brake disc, and judging whether the temperature of the brake disc is greater than a set threshold value or not;
if the temperature of the brake disc is larger than the set threshold, judging whether a windshield wiper gear is larger than a set gear, if so, generating a first brake pressure according to the windshield wiper gear when a brake control signal is acquired, and simultaneously braking all wheels of the vehicle according to the first brake pressure;
if the temperature of the brake disc is smaller than the set threshold, generating a second brake pressure according to the temperature of the brake disc when a brake control signal is acquired;
and dividing the braking time interval into a plurality of time intervals, and braking different groups of wheels according to the second braking pressure in different time intervals according to the time sequence.
9. An electronic device comprising at least one processor, and a memory communicatively coupled to the at least one processor;
the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the brake control method of any one of claims 1-7.
10. A computer-readable storage medium storing computer instructions for causing a processor to perform the braking control method of any one of claims 1-7 when executed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211448510.6A CN115743079A (en) | 2022-11-18 | 2022-11-18 | Brake control method, device, equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211448510.6A CN115743079A (en) | 2022-11-18 | 2022-11-18 | Brake control method, device, equipment and storage medium |
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| CN115743079A true CN115743079A (en) | 2023-03-07 |
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| CN202211448510.6A Pending CN115743079A (en) | 2022-11-18 | 2022-11-18 | Brake control method, device, equipment and storage medium |
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