Inflation pump start-stop control method and device, electronic equipment and medium

Abstract

The invention discloses an inflation pump starting and stopping control method and device, electronic equipment and a medium, and relates to the field of control. According to the scheme, a dryer pressure switch is additionally arranged in an original braking system of a new energy vehicle, and the pressure switch state of the dryer pressure switch is related to the braking pressure value of the air inlet end of an air cylinder; the brake pressure value in the air cylinder is related to whether the electric blast pump needs to be controlled to start and stop, so that whether the electric blast pump needs to be controlled to start or stop is judged according to the obtained brake pressure value in the air cylinder of the new energy vehicle and the pressure switch state of the dryer pressure switch of the new energy vehicle; and the electric inflating pump is controlled to be started or stopped according to the judgment result, so that the starting and stopping of the electric inflating pump are accurately controlled, and the safety of the scheme is improved.

Description

Technical Field

[0001] The present invention relates to the field of control, and in particular to a method, device, electronic equipment and medium for starting and stopping an air pump. Background Art

[0002] In the current truck market, new energy vehicles account for an increasing proportion. However, compared with existing trucks, new energy vehicles do not have engines inside, that is, the existing trucks have their own engine pumps. The braking system of new energy vehicles is composed of electric pumps, dryers, air tanks, brake lines, foot valves, and brakes. The dryer is used to dry the gas delivered by the electric pump to the air tank. However, due to various emergencies in new energy vehicles, there is no method in the prior art that can accurately control the start and stop of the electric pump, resulting in frequent safety problems in new energy vehicles, which seriously affects the safety of passengers. Summary of the invention

[0003] The purpose of the present invention is to provide an air pump start-stop control method, device, electronic equipment and medium. This scheme accurately controls the opening or closing of the air pump according to the brake pressure value of the vehicle braking system and the pressure switch state of the dryer pressure switch, thereby improving the safety of the scheme.

[0004] In order to solve the above technical problems, the present invention provides a start-stop control method for an electric air pump, comprising:

[0005] Obtaining a brake pressure value in an air reservoir of a new energy vehicle and a pressure switch state of a dryer pressure switch of the new energy vehicle, wherein the dryer pressure switch is connected to a dryer of the new energy vehicle, and the pressure switch state represents a brake pressure value at an air inlet end of the air reservoir;

[0006] Determining whether to turn on or off the electric air pump of the new energy vehicle according to the brake pressure value and the state of the pressure switch;

[0007] The electric air pump is controlled to be turned on or off based on the judgment result.

[0008] Optionally, judging whether to turn on or off the electric air pump of the new energy vehicle according to the brake pressure value and the state of the pressure switch includes:

[0009] Determine whether the pressure switch is in a closed state and whether the brake pressure value is less than a preset pressure threshold, wherein the pressure switch is in a closed state, indicating that the air pressure in the air reservoir is insufficient, and the pressure switch is in an open state, indicating that the air pressure in the air reservoir is sufficient;

[0010] If the pressure switch is in a closed state and the brake pressure value is less than a preset pressure threshold, it is determined that the electric air pump of the new energy vehicle needs to be turned on;

[0011] If the pressure switch state is in the disconnected state and the brake pressure value is not less than the preset pressure threshold, it is determined that the electric air pump of the new energy vehicle needs to be turned off.

[0012] Optionally, if the change of the state of the pressure switch is from the closed state to the open state and the brake pressure value is changed from less than the preset pressure threshold to equal to the preset pressure threshold, the method further includes:

[0013] Obtaining the key ON status of the new energy vehicle;

[0014] Determining whether the brake pressure value is lost after the electric air pump is turned on;

[0015] If the brake pressure value is lost after the electric air pump is turned on, it is determined that a system failure occurs in the new energy vehicle, and the new energy vehicle is controlled to run at a first preset running speed until the key ON state changes from a key power-on state to a key power-off state, triggering a step of controlling the electric air pump to shut down;

[0016] If the acquisition condition of the brake pressure value after the electric air pump is turned on is not that the brake pressure value is lost, then the step of determining that the electric air pump of the new energy vehicle needs to be turned on is triggered.

[0017] Optionally, after controlling the electric air pump to start based on the judgment result, the method further includes:

[0018] Obtaining the key ON status of the new energy vehicle;

[0019] Determining the working time of the electric air pump;

[0020] Determine whether the working time is greater than a preset working time threshold;

[0021] If the working time is greater than a preset working time threshold, it is determined that a system failure occurs in the new energy vehicle, and the new energy vehicle is controlled to slow down until the key ON state changes from a key power-on state to a key power-off state, and the new energy vehicle is controlled to stop;

[0022] If the working time is not greater than the preset working time threshold, the step of obtaining the brake pressure value in the air tank of the new energy vehicle and the pressure switch state of the dryer pressure switch of the new energy vehicle is triggered.

[0023] Optionally, determining the working time of the electric air pump includes:

[0024] Timing the operation of the electric air pump to determine a first moment when the electric air pump is turned on and a second moment when the electric air pump is turned off;

[0025] The working duration is determined according to the difference between the second moment and the first moment.

[0026] Optionally, after timing the operation of the electric air pump, the method further comprises:

[0027] Determining whether a brake signal of the new energy vehicle is received during the operation of the electric air pump;

[0028] If a brake signal of the new energy vehicle is received during the operation of the electric air pump, the operation of the electric air pump will be re-timed from the moment the brake signal is received.

[0029] Optionally, after controlling the new energy vehicle to stop until the key ON state changes from the key power-on state to the key power-off state, the method further includes:

[0030] Sending a fault identification bit to a display device of the new energy vehicle, so that the display device performs a corresponding fault display after receiving the fault identification bit;

[0031] A corresponding warning signal is sent to the warning device of the new energy vehicle so that the warning device issues a corresponding warning.

[0032] In order to solve the above technical problems, the present invention also provides an electric air pump start-stop control device, comprising:

[0033] An acquisition unit, used to acquire a brake pressure value of an air tank of a new energy vehicle and a pressure switch state of a dryer pressure switch of the new energy vehicle;

[0034] A judgment unit, used for judging whether it is necessary to turn on the electric air pump of the new energy vehicle according to the brake pressure value and the state of the pressure switch;

[0035] A determination unit is used for controlling the electric air pump to turn on when it is determined that the electric air pump of the new energy vehicle needs to be turned on based on the brake pressure value and the pressure switch status, and controlling the electric air pump to turn off based on changes in the brake pressure value and changes in the pressure switch status after the electric air pump is turned on.

[0036] In order to solve the above technical problems, the present invention further provides an electronic device, comprising:

[0037] Memory for storing computer programs;

[0038] A processor is used to implement the steps of the electric air pump start-stop control method as described above when executing the computer program.

[0039] In order to solve the above technical problems, the present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the electric air pump start-stop control method as described above are implemented.

[0040] The purpose of the present invention is to provide an air pump start and stop control method, device, electronic device and medium. This scheme adds a dryer pressure switch to the original braking system of new energy vehicles. Because the pressure switch state of the dryer pressure switch is related to the brake pressure value at the air inlet end of the air cylinder, and the brake pressure value in the air cylinder is related to whether it is necessary to control the electric air pump to start and stop, this scheme judges whether it is necessary to control the electric air pump to start or stop by obtaining the brake pressure value in the air cylinder of the new energy vehicle and the pressure switch state of the dryer pressure switch of the new energy vehicle, and controls the opening or closing of the electric air pump according to the judgment result, thereby accurately controlling the start and stop of the electric air pump and improving the safety of the scheme. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0042] Figure 1 A process flow chart of a start-stop control method for an electric air pump provided by the present invention;

[0043] Figure 2 A working schematic diagram of a vehicle-mounted data acquisition device provided by the present invention;

[0044] Figure 3 A schematic diagram of the structure of a start-stop control device for an electric air pump provided by the present invention;

[0045] Figure 4 The present invention provides a schematic structural diagram of an electronic device. DETAILED DESCRIPTION

[0046] The core of the present invention is to provide an air pump start-stop control method, device, electronic equipment and medium. This scheme accurately controls the opening or closing of the air pump according to the brake pressure value of the vehicle braking system and the pressure switch state of the dryer pressure switch, thereby improving the safety of the scheme.

[0047] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] Please refer to Figure 1 , Figure 1 This is a process flow chart of a method for starting and stopping an electric air pump provided by the present invention. The method for starting and stopping an electric air pump comprises:

[0049] S11: obtaining a brake pressure value in an air reservoir of a new energy vehicle and a pressure switch state of a dryer pressure switch of the new energy vehicle, wherein the dryer pressure switch is connected to a dryer of the new energy vehicle, and the pressure switch state represents a brake pressure value at an air inlet end of the air reservoir;

[0050] S12: judging whether the electric air pump of the new energy vehicle needs to be turned on or off according to the brake pressure value and the state of the pressure switch;

[0051] S13: Controlling the electric air pump to turn on or off based on the judgment result.

[0052] In the present invention, it is considered that the braking system of the new energy vehicle is composed of an electric air pump, a dryer, an air reservoir, a brake line, a foot valve, and a brake, and only when the air pressure in the air reservoir is sufficient-the brake pressure value is not less than the preset pressure threshold, the driver controls the foot valve to open, and then the gas in the air reservoir can be successfully transmitted to the brake through the brake line to promote the brake to work, thereby completing the braking of the whole vehicle. Therefore, the brake pressure value in the air reservoir in the new energy vehicle affects the braking function of the whole vehicle. In order to prevent the brake pressure value of the air reservoir from being too low, it is necessary to control the start and stop of the electric air pump accordingly. In addition, considering that the dryer is arranged between the air reservoir and the electric air pump, in order to more accurately reflect the Whether the air pressure inside the air cylinder is sufficient - whether the brake pressure value is not less than the preset pressure threshold, so this scheme adds a dryer pressure switch to the original braking system of the new energy vehicle, wherein the dryer pressure switch is connected to the dryer, and can reflect the brake pressure value at the air inlet end of the air cylinder through the pressure switch state, so this scheme can obtain the brake pressure value in the air cylinder of the new energy vehicle and the pressure switch state of the dryer pressure switch of the new energy vehicle to accurately judge whether it is necessary to turn on or off the electric air pump of the new energy vehicle, and accurately control the electric air pump to turn on or off based on the judgment result. This scheme accurately controls the start and stop of the air pump and improves the safety of the whole vehicle operation.

[0053] It should be noted that in practical applications, Figure 2As shown, the air reservoir pressure sensor is responsible for collecting the current brake pressure of the brake system. The instrument converts the brake pressure sensor signal into a CAN (Controller Area Network) message and sends it to the VCU (Vehicle Control Unit). As the control core of the entire control device, the VCU obtains the current brake pressure value collected by the instrument through the CAN bus; the VCU obtains the pressure switch status through the dryer pressure switch. The dryer is connected to the dryer pressure switch. The dryer pressure switch can detect the voltage at the current connection. When the voltage at the connection is low, it is closed, and when the voltage at the connection is sufficient, it is disconnected and suspended; the VCU collects the brake pedal status. The VCU uses the obtained brake pressure value and the pressure switch status to determine whether the air pump needs to be turned on. If it is determined that the air pressure is low, the air pump is turned on. The VCU sends the air pump enable to the air pump control period. After the air pump works, the VCU synchronously starts the air pump working time timing, and monitors the braking action, the CAN bus air pressure value online status, and the key ON status at the same time. When the air pump is working continuously, if the VCU detects no brake signal, but the working time of the air pump exceeds the preset threshold value T1 (preset working time threshold), it is considered a system fault, and the fault identification bit is returned to the instrument display for safety warning; if the braking action is detected during the timing, that is, there is a brake signal, the timing will be restarted. When the air pump is working continuously, if the VCU detects that the air pressure value on the CAN bus is lost, it is considered a system fault, the vehicle speed is limited, and the working state of the air pump in the current round is maintained until the key is powered off. When the key system signal is abnormal, the safe operation of the whole vehicle is maintained to the maximum extent.

[0054] It should also be noted that the key improvements of this solution are: 1. The electrical configuration of the air pump fault monitoring and processing device, which is composed of VCU, instruments and bus information, brake pedal, dryer pressure switch, air pump controller, air pump, etc. through a certain connection method; 2. System abnormality handling method, such as when the air pump is continuously working, the VCU monitors the system operation status. If there is no brake signal, but the working time exceeds the preset threshold T1, it is identified as a system fault and the fault identification bit is returned to the instrument display; when the air pump is continuously working, the VCU monitors the system operation status. If the air pressure value on the CAN bus is detected to be lost, it is identified as a system fault, the vehicle is speed-limited, and the working status of the air pump in the current round of power-on is maintained until the key is turned off.

[0055] It should also be noted that the advantages of this solution are: 1. By monitoring the continuous working time of the air pump, the abnormal state of the braking system can be identified in advance, thereby improving vehicle safety; 2. When key signal communication is abnormal, the system maintains system operation to the maximum extent, thereby improving the redundancy of vehicle safe operation.

[0056] The present embodiment provides an air pump start and stop control method. The present scheme adds a dryer pressure switch to the original braking system of the new energy vehicle. Because the pressure switch state of the dryer pressure switch is related to the brake pressure value at the air inlet end of the air cylinder, and the brake pressure value in the air cylinder is related to whether the electric air pump needs to be controlled to start and stop, the present scheme determines whether the electric air pump needs to be controlled to start or stop by obtaining the brake pressure value in the air cylinder of the new energy vehicle and the pressure switch state of the dryer pressure switch of the new energy vehicle, and controls the electric air pump to start or stop according to the judgment result, thereby accurately controlling the start and stop of the electric air pump and improving the safety of the scheme.

[0057] Based on the above embodiments:

[0058] As an optional embodiment, judging whether to turn on or off the electric air pump of the new energy vehicle according to the brake pressure value and the state of the pressure switch includes:

[0059] Determine whether the pressure switch is in a closed state and whether the brake pressure value is less than a preset pressure threshold. If the pressure switch is in a closed state, it indicates that the air pressure in the air reservoir is insufficient. If the pressure switch is in an open state, it indicates that the air pressure in the air reservoir is sufficient.

[0060] If the pressure switch is in a closed state and the brake pressure value is less than the preset pressure threshold, it is determined that the electric air pump of the new energy vehicle needs to be turned on;

[0061] If the pressure switch is in the disconnected state and the brake pressure value is not less than the preset pressure threshold, it is determined that the electric air pump of the new energy vehicle needs to be turned off.

[0062] In the present invention, considering that the normal operation of the brakes of new energy vehicles requires sufficient gas pressure in the air cylinder, that is, the brake pressure value of the air cylinder is not less than the preset pressure threshold, and the pressure switch state is disconnected, so this solution determines whether the electric air pump needs to be turned on by judging whether the pressure switch state is closed and whether the brake pressure value is less than the preset pressure threshold. When the pressure switch state is closed and the brake pressure value is less than the preset pressure threshold, the electric air pump of the new energy vehicle needs to be turned on; similarly, this solution determines whether the electric air pump needs to be turned off by judging whether the pressure switch state is disconnected and whether the brake pressure value is not less than the preset pressure threshold. If the pressure switch state is disconnected and the brake pressure value is not less than the preset pressure threshold, the electric air pump is controlled to be turned off. Accurate judgment is made on the start and stop control of the electric air pump, which improves the accuracy of the solution.

[0063] As an optional embodiment, after controlling the electric air pump to start based on the judgment result, the method further includes:

[0064] Get the key ON status of new energy vehicles;

[0065] Determine whether the brake pressure value obtained after the electric air pump is turned on is a lost brake pressure value;

[0066] If the brake pressure value is lost after the electric air pump is turned on, it is determined that the new energy vehicle has a system failure, and the new energy vehicle is controlled to slow down until the key ON state changes from the key power-on state to the key power-off state, and the new energy vehicle is controlled to stop;

[0067] If the brake pressure value obtained after the electric air pump is turned on is not lost, the step of obtaining the brake pressure value in the air tank of the new energy vehicle and the pressure switch state of the dryer pressure switch of the new energy vehicle is triggered.

[0068] In the present invention, taking into account that new energy vehicles are prone to losing brake pressure values ​​during driving, this may be caused by a system failure in the new energy vehicle. Therefore, in addition to controlling the start and stop of the electric air pump, this scheme also needs to perform real-time detection of system failures in the new energy vehicle to reasonably control the shutdown of the electric air pump. Among them, when this scheme detects that the brake pressure value is lost after the electric air pump is turned on, that is, the brake pressure value of the air cylinder cannot be obtained suddenly, it can be determined that a system failure has occurred in the new energy vehicle. At this time, in order to ensure the safety of the vehicle, it is necessary to directly control the new energy vehicle to run at a first preset operating speed, that is, control the vehicle to decelerate to prevent safety problems, and control the vehicle to stop when the key ON state changes from the key power-on state to the key power-off state, thereby improving the safety of the scheme.

[0069] As an optional embodiment, after controlling the electric air pump to start based on the judgment result, the method further includes:

[0070] Get the key ON status of new energy vehicles;

[0071] Determine the working time of the electric air pump;

[0072] Determine whether the working time is greater than a preset working time threshold;

[0073] If the working time is longer than the preset working time threshold, it is determined that the new energy vehicle has a system failure, and the new energy vehicle is controlled to slow down until the key ON state changes from the key power-on state to the key power-off state, and the new energy vehicle is controlled to stop;

[0074] If the working time is not greater than the preset working time threshold, the step of obtaining the brake pressure value in the air tank of the new energy vehicle and the pressure switch state of the dryer pressure switch of the new energy vehicle is triggered.

[0075] In the present invention, considering that if the running time of the air pump is too long during the operation of the air pump, it may be because of a fault in the vehicle system, which in turn causes a timing error, so this solution will also determine the working time of the electric air pump after determining that the change in the state of the pressure switch is from a closed state to an open state and the brake pressure value is from less than the preset pressure threshold to equal to the preset pressure threshold, and judge whether the working time is greater than the preset working time threshold. If the working time is greater than the preset working time threshold, it can be determined that a system failure has occurred in the new energy vehicle. At this time, in order to ensure the safety of the vehicle, it is necessary to directly control the new energy vehicle to run at the first preset operating speed, that is, to control the vehicle to slow down, to prevent safety problems, and control the vehicle to stop when the key ON gear state changes from the key power-on state to the key power-off state, thereby improving the safety of the solution.

[0076] As an optional embodiment, determining the working time of the electric air pump includes:

[0077] Timing the operation of the electric air pump to determine a first moment when the electric air pump is turned on and a second moment when the electric air pump is turned off;

[0078] The working time is determined according to the difference between the second moment and the first moment.

[0079] In the present invention, it is considered that under normal circumstances, when the brake pressure value is detected to be less than the preset pressure threshold, the electric air pump will be controlled to turn on. Similarly, when the brake pressure value is equal to the preset pressure threshold, the electric air pump will be controlled to turn off. Therefore, the period from when the electric air pump is just turned on to when it is just turned off is the working time of the electric air pump. Therefore, the method for determining the working time of the electric air pump is: timing the work of the electric air pump to determine the first moment when the electric air pump is turned on and the second moment when the brake pressure value is equal to the preset pressure threshold, and then the working time can be accurately determined based on the difference between the second moment and the first moment.

[0080] As an optional embodiment, after timing the operation of the electric air pump, the method further includes:

[0081] Determine whether a brake signal of a new energy vehicle is received during the operation of the electric air pump;

[0082] If a brake signal from the new energy vehicle is received during the operation of the electric air pump, the operation of the electric air pump will be re-timed from the moment the brake signal is received.

[0083] In the present invention, taking into account that the sudden braking of the vehicle will affect the process of obtaining the braking pressure value, in order to ensure the timing accuracy of the air pump, after timing the operation of the air pump, this scheme will also determine whether the vehicle's braking signal is received during the operation of the air pump, that is, whether a sudden braking of the vehicle is detected. If the vehicle's braking signal is received during the operation of the air pump, the operation of the air pump will be re-timed from the moment the brake signal is received, thereby ensuring the accuracy of the timing and the accuracy of system fault judgment.

[0084] As an optional embodiment, after the step of triggering the electric air pump to shut down when the key ON state changes from the key power-on state to the key power-off state, the method further includes:

[0085] Sending a fault identification bit to a display device of a new energy vehicle so that the display device performs a corresponding fault display after receiving the fault identification bit;

[0086] Send a corresponding warning signal to the warning device of the new energy vehicle so that the warning device issues a corresponding warning.

[0087] In the present invention, considering that when a vehicle has a system failure, timely maintenance is required to avoid safety problems, the present application directly sends a fault identification bit to the display device after determining that a system failure has occurred in the vehicle and controlling the electric air pump to shut down, so that the display device can display the corresponding fault after receiving the fault identification bit. At the same time, a corresponding alarm signal is sent to the alarm device so that the alarm device issues a corresponding alarm. Through the alarm and fault display, maintenance personnel can promptly understand the fault condition of the new energy vehicle, thereby improving the reliability and safety of the solution.

[0088] It should be noted that in actual applications, the vehicle controller of new energy vehicles generally displays eye-catching text prompts on the display device, and the color and size of the text must be highlighted to ensure that the operator can see it clearly under any circumstances. In addition, the alarm method can include the use of a strongly flashing red warning light for reminders. This light color is visually highly alert and can quickly attract the operator's attention. At the same time, the flashing frequency can be set to a higher value to enhance the sense of urgency. The alarm method can also include issuing a specific (system default setting or user-defined setting) alarm sound in the external or built-in audio system of the new energy vehicle. The timbre and volume of this alarm sound need to be significantly different from other normal prompt sounds, and it also needs to be clearly distinguishable in the noisy environment where the new energy vehicle is operating, so that the operator can feel the urgency of the current situation.

[0089] Please refer to Figure 3 , Figure 3This is a schematic diagram of the structure of an electric air pump start-stop control device provided by the present invention. The electric air pump start-stop control device comprises:

[0090] An acquisition unit 11 is used to acquire a brake pressure value of an air reservoir in a new energy vehicle and a pressure switch state of a dryer pressure switch of the new energy vehicle, wherein the dryer pressure switch is connected to a dryer of the new energy vehicle, and the pressure switch state represents a brake pressure value at an air inlet end of the air reservoir;

[0091] A judgment unit 12, used to judge whether the electric air pump of the new energy vehicle needs to be turned on or off according to the brake pressure value and the state of the pressure switch;

[0092] The control unit 13 is used to control the electric air pump to turn on or off based on the judgment result.

[0093] The air pump start-stop control device provided in this embodiment corresponds to the above-mentioned method, and therefore has the same beneficial effects as the above-mentioned method. Therefore, for the embodiments of the air pump start-stop control device, please refer to the description of the embodiments of the method part, which will not be repeated here.

[0094] Please refer to Figure 4 , Figure 4 A schematic diagram of the structure of an electronic device provided by the present invention. The electronic device comprises:

[0095] A memory 20, used for storing computer programs;

[0096] The processor 21 is used to implement the steps of the above-mentioned electric air pump start-stop control method when executing the computer program.

[0097] The electronic device provided in this embodiment may include but is not limited to a smart phone, a tablet computer, a laptop computer or a desktop computer.

[0098] Among them, the processor 21 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 21 can be implemented in at least one hardware form of a digital signal processor (DSP), a field-programmable gate array (FPGA), and a programmable logic array (PLA). The processor 21 may also include a main processor and a coprocessor. The main processor is a processor for processing data in the awake state, also known as a central processing unit (CPU); the coprocessor is a low-power processor for processing data in the standby state. In some embodiments, the processor 21 may be integrated with a graphics processing unit (GPU), which is responsible for rendering and drawing the content to be displayed on the display screen. In some embodiments, the processor 21 may also include an artificial intelligence (AI) processor, which is used to process computing operations related to machine learning.

[0099] The memory 20 may include one or more computer-readable storage media, which may be non-transitory. The memory 20 may also include high-speed random access memory, and non-volatile memory, such as one or more disk storage devices, flash memory storage devices. In this embodiment, the memory 20 is at least used to store the following computer program 201, wherein, after the computer program is loaded and executed by the processor 21, it can implement the relevant steps of the air pump start-stop control method disclosed in any of the aforementioned embodiments. In addition, the resources stored in the memory 20 may also include an operating system 202 and data 203, etc., and the storage method may be temporary storage or permanent storage. Among them, the operating system 202 may include Windows, Unix, Linux, etc. Data 203 may include but is not limited to the air pump start-stop control method, etc.

[0100] In some embodiments, the electronic device may further include a display screen 22 , an input / output interface 23 , a communication interface 24 , a power source 25 , and a communication bus 26 .

[0101] Those skilled in the art will understand that Figure 4 The structure shown in the figure does not constitute a limitation on the electronic device, and may include more or fewer components than shown in the figure.

[0102] The purpose of this embodiment is to provide an electronic device, in which the memory 20 is used to store computer programs, and the processor 21 is used to implement the steps of the above-mentioned air pump start and stop control method when executing the computer program, so as to make the control process more efficient and accurate.

[0103] The present invention also provides an embodiment corresponding to a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned electric air pump start-stop control method are implemented.

[0104] It is understandable that if the method in the above embodiment is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium to execute all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program codes.

[0105] The computer-readable storage medium provided in this embodiment corresponds to the above method, and therefore has the same beneficial effects as the above method. Therefore, for the embodiments of the computer-readable storage medium part, please refer to the description of the embodiments of the method part, which will not be repeated here.

[0106] It should be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0107] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for starting and stopping an electric air pump, characterized in that: include: Obtaining a brake pressure value in an air reservoir of a new energy vehicle and a pressure switch state of a dryer pressure switch of the new energy vehicle, wherein the dryer pressure switch is connected to a dryer of the new energy vehicle, and the pressure switch state represents a brake pressure value at an air inlet end of the air reservoir; Determining whether to turn on or off the electric air pump of the new energy vehicle according to the brake pressure value and the state of the pressure switch; The electric air pump is controlled to be turned on or off based on the judgment result.

2. The electric air pump start-stop control method according to claim 1, characterized in that: The method of judging whether to turn on or off the electric air pump of the new energy vehicle according to the brake pressure value and the state of the pressure switch includes: Determine whether the pressure switch is in a closed state and whether the brake pressure value is less than a preset pressure threshold, wherein the pressure switch is in a closed state, indicating that the air pressure in the air reservoir is insufficient, and the pressure switch is in an open state, indicating that the air pressure in the air reservoir is sufficient; If the pressure switch is in a closed state and the brake pressure value is less than a preset pressure threshold, it is determined that the electric air pump of the new energy vehicle needs to be turned on; If the pressure switch state is in the disconnected state and the brake pressure value is not less than the preset pressure threshold, it is determined that the electric air pump of the new energy vehicle needs to be turned off.

3. The electric air pump start-stop control method according to claim 1, characterized in that: After controlling the electric air pump to start based on the judgment result, the method further includes: Obtaining the key ON status of the new energy vehicle; Determining whether the brake pressure value is lost after the electric air pump is turned on; If the brake pressure value is lost after the electric air pump is turned on, it is determined that a system failure occurs in the new energy vehicle, and the new energy vehicle is controlled to slow down until the key ON state changes from the key power-on state to the key power-off state, and the new energy vehicle is controlled to stop; If the brake pressure value is not lost after the electric air pump is turned on, the step of obtaining the brake pressure value in the air cylinder of the new energy vehicle and the pressure switch state of the dryer pressure switch of the new energy vehicle is triggered.

4. The electric air pump start-stop control method according to claim 1, characterized in that: After controlling the electric air pump to start based on the judgment result, the method further includes: Obtaining the key ON status of the new energy vehicle; Determining the working time of the electric air pump; Determine whether the working time is greater than a preset working time threshold; If the working time is greater than a preset working time threshold, it is determined that a system failure occurs in the new energy vehicle, and the new energy vehicle is controlled to slow down until the key ON state changes from a key power-on state to a key power-off state, and the new energy vehicle is controlled to stop; If the working time is not greater than the preset working time threshold, the step of obtaining the brake pressure value in the air tank of the new energy vehicle and the pressure switch state of the dryer pressure switch of the new energy vehicle is triggered.

5. The electric air pump start-stop control method according to claim 4, characterized in that: The step of determining the working time of the electric air pump comprises: Timing the operation of the electric air pump to determine a first moment when the electric air pump is turned on and a second moment when the electric air pump is turned off; The working duration is determined according to the difference between the second moment and the first moment.

6. The electric air pump start-stop control method according to claim 5, characterized in that: After timing the operation of the electric air pump, the method further comprises: Determining whether a brake signal of the new energy vehicle is received during the operation of the electric air pump; If a brake signal of the new energy vehicle is received during the operation of the electric air pump, the operation of the electric air pump will be re-timed from the moment the brake signal is received.

7. The start-stop control method of an electric air pump according to any one of claims 3 to 6, characterized in that: After controlling the new energy vehicle to stop until the key ON state changes from the key power-on state to the key power-off state, the method further includes: Sending a fault identification bit to a display device of the new energy vehicle, so that the display device performs a corresponding fault display after receiving the fault identification bit; A corresponding warning signal is sent to the warning device of the new energy vehicle so that the warning device issues a corresponding warning.

8. An electric air pump start-stop control device, characterized in that: include: An acquisition unit, used to acquire a brake pressure value of an air reservoir in a new energy vehicle and a pressure switch state of a dryer pressure switch of the new energy vehicle, wherein the dryer pressure switch is connected to a dryer of the new energy vehicle, and the pressure switch state represents a brake pressure value at an air inlet end of the air reservoir; A judgment unit, used for judging whether the electric air pump of the new energy vehicle needs to be turned on or off according to the brake pressure value and the state of the pressure switch; A control unit is used to control the electric air pump to turn on or off based on the judgment result.

9. An electronic device, characterized in that: include: Memory for storing computer programs; A processor is used to implement the steps of the electric air pump start-stop control method as claimed in any one of claims 1 to 7 when executing the computer program.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the electric air pump start-stop control method according to any one of claims 1 to 7 are implemented.

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