Regenerative control unit, method, device and electronic equipment for braking system of whole vehicle

Abstract

The present invention provides a regenerative control unit, method, device and electronic equipment for the braking system of a whole vehicle, and relates to the field of vehicle braking technology. The regenerative control unit of the braking system of the whole vehicle includes: a unloading valve, a regeneration valve, and an air pressure sensor; the air inlet end of the unloading valve is connected to an air outlet of a drying tank, the outlet end of the regeneration valve is connected to another air outlet of the drying tank, and the unloading valve and the regeneration valve are both electrically connected to the whole vehicle controller; the air pressure sensor is arranged in the drying tank to obtain the pressure of the gas in the drying tank; when the unloading valve and the regeneration valve are both open, the gas output by the air compressor is blown into the drying tank in reverse through the regeneration valve, and then discharged from the outlet end of the unloading valve. The present invention is used to efficiently control the air brake system of the vehicle, and can efficiently and safely control the operation of the drying tank to ensure the safety of the vehicle's air brake system.

Description

Technical Field

[0001] The present invention relates to the field of vehicle braking technology, and in particular to a regenerative control unit, method, device and electronic equipment of a braking system of a whole vehicle. Background Art

[0002] At present, heavy-duty tractor trucks mainly use pneumatic braking, which works as follows: the outside air is compressed by the air compressor, heat exchanged through the spiral air pipe, and then condensed by the condenser. The treated air needs to enter the drying tank for purification to ensure that the air entering the air circuit is dry, thereby ensuring the normal operation of the braking system.

[0003] In the prior art, the control element of the dryer tank is the dryer pressure switch, which is a simple mechanical structure. It deflates when the air pressure in the dryer tank reaches a certain value. The vehicle controller can only know the deflation state of the dryer pressure switch and cannot effectively intervene in the dryer tank. As a result, the dryer tank has simple functions. For example, the dryer tank has no regeneration function and a short service life. The water vapor accumulated in the dryer tank cannot be discharged, which easily causes the vehicle air brake system to malfunction in winter.

[0004] Therefore, how to efficiently control the vehicle's air brake system, efficiently and safely control the operation of the drying tank, and ensure the safety of the vehicle's air brake system is a technical problem that needs to be solved urgently. Summary of the invention

[0005] In view of the above problems existing in the prior art, the present invention provides a regenerative control unit, method, device and electronic equipment of a braking system of a whole vehicle, which can realize efficient control of the vehicle's air brake system, so as to efficiently and safely control the operation of the drying tank and ensure the safety of the vehicle's air brake system.

[0006] The present invention provides a regeneration control unit of a braking system of a whole vehicle, comprising an unloading valve, a regeneration valve, and an air pressure sensor; wherein the air inlet end of the unloading valve is connected to an air outlet of the drying tank, the outlet end of the regeneration valve is connected to another air outlet of the drying tank, and the unloading valve and the regeneration valve are both electrically connected to a whole vehicle controller; wherein the air pressure sensor is arranged in the drying tank and is used to obtain the pressure of the gas in the drying tank; wherein, when the unloading valve and the regeneration valve are both opened, the gas output by the air compressor enters the drying tank through the regeneration valve for back-blowing and is then discharged from the outlet end of the unloading valve; wherein, when the unloading valve is opened and the regeneration valve is closed, the gas in the drying tank is discharged from the outlet end of the unloading valve.

[0007] The present invention provides a regenerative control method for a braking system of a whole vehicle, comprising the following steps.

[0008] In response to the start-up condition of the air compressor being met, the air compressor is started so that the gas processed by the air compressor enters the drying tank for drying treatment; the air pressure sensor is used to monitor the current air pressure value in the drying tank; in response to the current air pressure value in the drying tank reaching a first air pressure threshold, the air compressor is stopped, and the unloading valve and the regeneration valve are opened so that the airflow from the air compressor enters the drying tank in reverse through the regeneration valve for regeneration back-blowing and is blown out from the unloading valve; in response to the regeneration back-blowing stop condition being met, the unloading valve and the regeneration valve are closed.

[0009] According to a regenerative control method for a braking system of a whole vehicle provided by the present invention, the method further includes: in response to satisfying the start-up condition of the air compressor, using the air pressure sensor to obtain the initial air pressure value in the drying tank; in response to satisfying the regeneration backwash stop condition, closing the unloading valve and the regeneration valve, including: when the regeneration backwash time reaches a regeneration time threshold, or the current pressure value of the drying tank is less than a second air pressure threshold, confirming that the regeneration backwash stop condition is satisfied, closing the unloading valve and the regeneration valve; wherein the second air pressure threshold is less than the first air pressure threshold; wherein the regeneration time threshold is calculated using a linear equation about the initial air pressure value.

[0010] According to a regenerative control method for a braking system of a whole vehicle provided by the present invention, the method further includes: in response to the target vehicle being powered on for the first time in the current wake-up cycle, opening the unloading valve within a preset time period to balance the internal air circuit of the drying tank and the external air pressure.

[0011] According to a regenerative control method for a braking system of a whole vehicle provided by the present invention, the method further includes: in response to detecting a shutdown and power-off instruction for a target vehicle, using the air pressure sensor to obtain the current air pressure in the drying tank; in response to the current air pressure in the drying tank being greater than a third preset threshold, opening the unloading valve and the regeneration valve so that the airflow from the air compressor enters the drying tank in reverse through the regeneration valve for regeneration backblowing, so as to blow out the water vapor in the drying tank.

[0012] According to a regenerative control method for a braking system of a whole vehicle provided by the present invention, the method further includes: in response to the target vehicle being powered on for the first time in the current wake-up cycle and the ambient temperature being lower than a preset temperature threshold, opening the unloading valve and the air compressor within a preset time period, so that the air heated by the air compressor flows through a pipeline between the drying tank and the air compressor and is blown out from the unloading valve.

[0013] According to a regenerative control method for a braking system of a whole vehicle provided by the present invention, the method also includes: s1: in response to the number of times the brake of the target vehicle is triggered within a first preset time period being greater than a preset number threshold, or the duration of the brake being triggered within a second preset time period being greater than a preset duration threshold, using the air pressure sensor to obtain multiple first air pressure values ​​in the drying tank within a third preset time period; s2: in response to the multiple first air pressure values ​​being greater than a preset air pressure threshold, and the differences between the multiple first air pressure values ​​being less than a preset difference threshold, sending an air pressure sensor function failure warning; or, a: after the air compressor starts working, using the air pressure sensor to obtain multiple second air pressure values ​​in the drying tank within a fourth preset time period; b: in response to the differences between the multiple second air pressure values ​​being less than a preset difference threshold, sending an air pressure sensor function failure warning.

[0014] The present invention also provides a regenerative control device for a braking system of a whole vehicle, comprising the following modules:

[0015] A starting module is used to start the air compressor in response to the start-up condition of the air compressor being met, so that the gas processed by the air compressor enters the drying tank for drying treatment; a monitoring module is used to monitor the current air pressure value in the drying tank using the air pressure sensor; a regeneration module is used to stop the air compressor in response to the current air pressure value in the drying tank reaching a first air pressure threshold, and open the unloading valve and the regeneration valve, so that the airflow from the air compressor enters the drying tank through the regeneration valve in reverse to perform regeneration backblowing, and then blows out from the unloading valve; a closing module is used to close the unloading valve and the regeneration valve in response to the regeneration backblowing stop condition being met.

[0016] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, a regenerative control method for the braking system of a whole vehicle as described above is implemented.

[0017] The present invention also provides a non-transitory computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the regenerative control method of the braking system of the whole vehicle as described in any one of the above is implemented.

[0018] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the computer program implements any of the above-mentioned methods for regenerative control of the braking system of the entire vehicle.

[0019] The regenerative control unit, method, device and electronic device of the braking system of the whole vehicle provided by the present invention change the pressure switch hardware structure of the drying tank in the prior art, change the original mechanical spontaneous control to electric control, integrate the unloading valve, regeneration valve and air pressure sensor which can be controlled by the whole vehicle controller, so that the whole vehicle controller can perform closed-loop control on the air brake system of the target vehicle, effectively enhancing the controllability and safety of the air brake system of the target vehicle. When the unloading valve and the regeneration valve are both open, the gas output by the air compressor enters the drying tank through the regeneration valve for back-blowing, and is discharged from the outlet end of the unloading valve. Thereby, the regeneration back-blowing function of the drying tank is realized, the service life of the drying tank can be extended, and the purification effect of the drying tank can be improved to avoid the occurrence of brake system failure. When the unloading valve is opened and the regeneration valve is closed, the gas in the drying tank is discharged from the outlet end of the unloading valve. Thereby, the discharge of water vapor in the drying tank can be realized in various situations, effectively preventing the occurrence of phenomena such as pipeline icing that are easy to cause brake system failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic structural diagram of a regenerative control unit of a braking system of a whole vehicle provided by the present invention.

[0022] Figure 2 This is one of the flow charts of the regenerative control method of the braking system of the whole vehicle provided by the present invention.

[0023] Figure 3 This is the second flow chart of the regenerative control method of the braking system of the whole vehicle provided by the present invention.

[0024] Figure 4 This is the third flow chart of the regenerative control method of the braking system of the whole vehicle provided by the present invention.

[0025] Figure 5 It is a schematic structural diagram of a regenerative control device for a braking system of a whole vehicle provided by the present invention.

[0026] Figure 6 It is a structural schematic diagram of the electronic device provided by the present invention.

[0027] Reference numerals:

[0028] 1: Air inlet; 2: First air outlet; 3: Air pressure switch control port; 4: Drying tank; 5: Second air outlet; 6: Heater; 7: Third air outlet; 8: Fourth air outlet; 9: Regeneration valve; 10: Unloading valve; 11: First one-way air exchange valve; 12: Second one-way air exchange valve; 13: Filter element. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings 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.

[0030] Combine the following Figure 1 The present invention describes a regenerative control unit of a braking system of a complete vehicle.

[0031] Figure 1 It is a schematic structural diagram of a regenerative control unit of a braking system of a whole vehicle provided by the present invention.

[0032] The regeneration control unit is used to control the operation of the vehicle's brake system. The brake system can be used in a variety of vehicle types, such as heavy trucks. The brake system includes a dryer tank and an air compressor, and the regeneration control unit includes: an unloading valve, a regeneration valve, and an air pressure sensor.

[0033] The unloading valve is a valve used to discharge the high-pressure gas in the drying tank. The regeneration valve is a valve used to input the backwash gas into the drying tank. In the specific implementation process, valves of various structures can be used to realize the unloading valve and the regeneration valve, which are not limited to the description of this specification.

[0034] The drying tank used in the vehicle braking system usually has multiple air outlets. The design of these air outlets helps to evenly distribute the dried compressed air to various parts of the vehicle braking system, thereby ensuring the normal operation of the braking system.

[0035] The air inlet of the unloading valve is connected to an air outlet of the drying tank, the outlet of the regeneration valve is connected to another air outlet of the drying tank, and the unloading valve and the regeneration valve are both electrically connected to the vehicle controller. Specifically, the switch control pins of the unloading valve and the regeneration valve are both connected to the vehicle controller. The air pressure sensor is arranged in the drying tank to obtain the pressure of the gas in the drying tank; when the unloading valve and the regeneration valve are both opened, the gas output by the air compressor enters the drying tank through the regeneration valve for back-blowing, and is discharged from the outlet of the unloading valve; when the unloading valve is opened and the regeneration valve is closed, the gas in the drying tank is discharged from the outlet of the unloading valve.

[0036] Just as an example, Figure 1 As shown, when the target vehicle is powered on and inflated for the first time, in order to start the air compressor with zero load, the vehicle controller can control the unloading valve 10 to open briefly for a certain period of time (for example, L seconds) so that the internal air path of the drying tank 4 is connected to the atmosphere through the unloading valve 10 to balance the air pressure.

[0037] The target vehicle is the vehicle where the brake system is located.

[0038] Just as an example, Figure 1 As shown, after the braking function of the target vehicle is triggered (for example, the brake is pressed), the gas processed by the air compressor flows into the drying tank 4 through the air inlet 1. After being dried in the drying tank 4, it passes through the filter element 13 and the second one-way ventilation valve 12 and flows from the third air outlet 7 to the braking system of the target vehicle.

[0039] like Figure 1 As shown, the air pressure switch control port 3 is the interface between the unloading valve 10 and the drying tank 4. The vehicle controller can open or close the interface by controlling the switch control pin of the unloading valve 10. When the interface is in the open state, the gas flowing out of the drying tank 4 passes through the interface and is discharged from the unloading valve 10; when the interface is in the closed state, the pipeline between the drying tank 4 and the unloading valve 10 is not connected.

[0040] As an example only, when the drying tank 4 needs to be regenerated and back-blown, the vehicle controller opens both the regeneration valve 9 and the unloading valve 10 through the switch control pins of the regeneration valve 9 and the unloading valve 10, and connects the airflow output by the air compressor to the third air outlet 7; after the airflow passes through the third air outlet 7 in the reverse direction, it passes through the regeneration valve 9 and the first one-way ventilation valve 11, and then passes through the filter element 13, and enters the drying tank 4 in the reverse direction from the second air outlet 5 of the drying tank 4, and finally the airflow in the drying tank 4 is discharged through the unloading valve 10.

[0041] like Figure 1 As shown, the regeneration control unit further includes a heater 6 .

[0042] As an example only, in order to prevent the phenomenon of freezing of the pipeline between the drying tank 4 and the air compressor in winter, when the ambient temperature is low, when the air compressor is started for the first time after the target vehicle is started, the unloading valve 10 can be opened. The temperature of the gas processed by the air compressor is relatively high. When it flows through the pipeline between the drying tank 4 and the air compressor through the first air outlet 1, the pipeline is heated. At the same time, the pipeline can also be heated by the electric heater 6. The hot air flows through the drying tank 4 and is discharged from the unloading valve 10.

[0043] Combine the following Figure 2-Figure 4 The regenerative control method of the braking system of a whole vehicle of the present invention is described.

[0044] Figure 2 is one of the flow charts of the regenerative control method of the braking system of the whole vehicle provided by the present invention, and the method is executed by the whole vehicle controller of the target vehicle, such as Figure 2 As shown, the method includes the following:

[0045] Step 201: In response to the start-up condition of the air compressor being met, the air compressor is started, so that the gas processed by the air compressor enters the drying tank for drying.

[0046] In the specific implementation process, the start-up conditions of the air compressor include: the brake of the target vehicle is stepped on and the target vehicle can work normally. The conditions for the target vehicle to work normally include: the target vehicle is ready; within the preset time, the air pressure sensor detects that the air pressure value in the drying tank is lower than the preset threshold; the main negative of the BMS (battery management system) is closed; the three-in-one relay is closed; there is no forced power-off instruction.

[0047] In some embodiments, when the start-up conditions of the air compressor are met, an air pressure sensor can be used to obtain the initial air pressure value in the drying tank. The initial air pressure value can be used to calculate the regeneration time threshold of the regeneration backflush in the subsequent steps. For a detailed description, please refer to the relevant content in step 204, which will not be repeated here.

[0048] In some embodiments, in order to start the air compressor with zero load, reduce the starting current of the air compressor, and avoid malfunctions, when the target vehicle is powered on for the first time in the current wake-up cycle, the unloading valve can be opened within a preset time period to balance the internal air circuit of the dryer and the external air pressure.

[0049] For the specific implementation process of this step, see Figure 1 The relevant content in will not be repeated here.

[0050] Step 202: Use the air pressure sensor to monitor the current air pressure value in the drying tank.

[0051] During the operation of the air compressor, the air pressure sensor disposed in the drying tank can be used to obtain the current air pressure value in the drying tank in real time.

[0052] Step 203, in response to the current air pressure value in the drying tank reaching the first air pressure threshold, the air compressor is stopped, and the unloading valve and the regeneration valve are opened, so that the airflow from the air compressor passes through the regeneration valve and reversely enters the drying tank for regeneration and back-blowing, and then blows out from the unloading valve.

[0053] The first air pressure threshold may be a pressure value set in advance based on experience or experimental results to make the dryer tank belong to the upper limit of the safety state. When the current air pressure value in the dryer tank reaches the first air pressure threshold, in order to improve the purification effect of the dryer tank, ensure the safety of the brake system, and effectively extend the service life of the dryer tank, the dryer tank is regenerated and back-blown.

[0054] For the specific implementation process of this step, see Figure 1 The relevant content in will not be repeated here.

[0055] Step 204 : In response to the regeneration backflush stop condition being met, the unloading valve and the regeneration valve are closed, and the air compressor is restarted.

[0056] The regeneration backwash stop condition may include: the regeneration backwash time reaches the regeneration time threshold, or the current pressure value of the drying tank is less than the second pressure threshold. The second pressure threshold may be a pressure value that can achieve a better regeneration backwash effect, which is set in advance based on experience or experimental results, and the second pressure threshold is less than the first pressure threshold.

[0057] In some embodiments, in order to complete the regeneration backflush process more accurately and efficiently, the regeneration time threshold T may be used to determine the duration of the regeneration backflush.

[0058] In the specific implementation process, the functional relationship between the time when the gas pressure in the dryer drops from the first pressure threshold to the second pressure threshold (i.e., the regeneration time threshold T) during the regeneration backwashing process of the dryer and the initial air pressure value in the dryer before the compressor starts working can be obtained by fitting the experimental data. Using this functional relationship, the regeneration time threshold T can be calculated by the initial air pressure value in the dryer. For example, the air compressor and the dryer system can be tested multiple times in a laboratory environment. During each test, the initial air pressure value x of the dryer is recorded, and the actual time required for the gas pressure in the dryer to drop from the first air pressure threshold B to the second air pressure threshold C during the regeneration backwashing process is recorded, i.e., the regeneration time threshold T. The multiple groups of x and T data collected in the above experimental process are organized into a scatter plot, and the scatter plot is used to fit the relationship between the two.

[0059] As an example only, the regeneration time threshold T may be calculated using a linear equation of the initial gas pressure value as shown below.

[0060] T = M - x N (1)

[0061] Among them, x is the initial air pressure value, and M and N are the fitting parameters obtained from the experiment.

[0062] After confirming that the regeneration backwash stop conditions are met, close the unloading valve and regeneration valve, and restart the air compressor.

[0063] In the specific implementation process, in order to ensure the safe operation of the regeneration control unit and timely discover and repair faults, the voltage sensor, unloading valve and regeneration valve arranged in the drying tank can be diagnosed according to the current driver's operation and / or the air pressure state in the drying tank. For example, the short circuit and open circuit faults of the switch control pins of the unloading valve and the regeneration valve can be diagnosed, and the functional failure of the pressure sensor can be diagnosed.

[0064] In some embodiments, in response to the number of times the brake of the target vehicle is triggered within the first preset time period being greater than a preset number threshold, or the duration of the brake being triggered within the second preset time period being greater than a preset duration threshold, a plurality of first air pressure values ​​in the drying tank within a third preset time period are acquired using an air pressure sensor. When the plurality of first air pressure values ​​are greater than the preset air pressure threshold, and the differences between the plurality of first air pressure values ​​are all less than the preset difference threshold, it can be diagnosed that the air pressure sensor is faulty, and an air pressure sensor function fault warning is sent.

[0065] In some embodiments, after the air compressor starts working, the air pressure sensor is used to obtain multiple second air pressure values ​​in the drying tank within a fourth preset time period. If the differences between the multiple second air pressure values ​​are all less than the preset difference threshold, it can be diagnosed that the air pressure sensor is faulty and a warning of air pressure sensor function failure is sent.

[0066] Figure 3 This is a second flow chart of the regenerative control method of the braking system of a vehicle provided by the present invention. This method is performed when the pipeline is prone to ice formation in winter. Figure 3 As shown, the method includes the following:

[0067] Step 301, in response to the target vehicle being powered on for the first time in the current wake-up cycle and the ambient temperature being lower than a preset temperature threshold, the unloading valve and the air compressor are opened within a preset time period, so that the air heated by the air compressor flows through the pipeline between the drying tank and the air compressor and is blown out from the unloading valve.

[0068] During the heating process of this step, the instrument can be used to provide the driver with prompt information about the pipeline heating process.

[0069] For the specific implementation process of this step, see Figure 1 The relevant content in will not be repeated here.

[0070] After completing this step, turn off the unloading valve and the air compressor.

[0071] In the embodiment provided by the present invention, the air heated by the air compressor is used to regenerate and back-blow the drying tank, thereby heating the drying tank and the pipeline between the drying tank and the air compressor, which can effectively melt the ice when the pipeline is frozen in winter. In addition, this step is based on the wake-up cycle rather than the power-on cycle, which can avoid the problem of repeated activation of the heating function when the target vehicle is quickly powered off and then quickly powered on, thereby effectively reducing energy consumption.

[0072] Figure 4 This is a flow chart of the regenerative control method of the braking system of a vehicle provided by the present invention. The method is executed when the target vehicle is turned off and powered off. Figure 4 As shown, the method includes the following:

[0073] Step 401: In response to detecting a shutdown command for a target vehicle, a current air pressure in a drying tank is acquired using an air pressure sensor.

[0074] In the specific implementation process, in order to prevent the water vapor remaining in the drying tank and the pipeline from freezing after the target vehicle is turned off, when the engine is turned off and the power is turned off for the target vehicle (for example, the car key is turned to the off position), the air pressure sensor is used to obtain the current air pressure in the drying tank.

[0075] Step 402: in response to the current air pressure in the drying tank being greater than a third preset threshold, the unloading valve and the regeneration valve are opened to allow the air flow from the air compressor to reversely enter the drying tank through the regeneration valve for regeneration and back-blowing to blow out the water vapor in the drying tank.

[0076] For the specific implementation process of this step, see Figure 1 The relevant content in will not be repeated here.

[0077] After this step is completed, close the unloading valve and the regeneration valve.

[0078] In the embodiment provided by the present invention, when the target vehicle is turned off and powered off, a regeneration backflush operation is performed on the dryer tank, which can effectively discharge water vapor in the dryer tank and the pipeline to prevent low-temperature icing.

[0079] The regenerative control device of the braking system of the whole vehicle provided by the present invention is described below. The regenerative control device of the braking system of the whole vehicle described below and the regenerative control method of the braking system of the whole vehicle described above can be referred to each other.

[0080] Figure 5 FIG. 1 is a schematic diagram of the structure of the regenerative control device of the braking system of the whole vehicle provided by the present invention. Figure 5 As shown, the device 500 includes the following modules.

[0081] The starting module 510 is used to start the air compressor in response to the start-up condition of the air compressor being met, so that the gas processed by the air compressor enters the drying tank for drying.

[0082] The monitoring module 520 is used to monitor the current air pressure value in the drying tank using the air pressure sensor.

[0083] The regeneration module 530 is used to stop the air compressor in response to the current air pressure value in the drying tank reaching the first air pressure threshold, and open the unloading valve and the regeneration valve, so that the air flow from the air compressor enters the drying tank in reverse through the regeneration valve for regeneration and back-blowing, and then blows out from the unloading valve.

[0084] The closing module 540 is configured to close the unloading valve and the regeneration valve in response to the regeneration backwash stopping condition being met.

[0085] Figure 6 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 6 As shown, the electronic device may include: a processor 610, a communication interface 620, a memory 630 and a communication bus 640, wherein the processor 610, the communication interface 620 and the memory 630 communicate with each other through the communication bus 640. The processor 610 may call the logic instructions in the memory 630 to execute the regeneration control method of the braking system of the whole vehicle, the method comprising: in response to the start-up condition of the air compressor being met, starting the air compressor so that the gas processed by the air compressor enters the drying tank for drying treatment; using the air pressure sensor to monitor the current air pressure value in the drying tank; in response to the current air pressure value in the drying tank reaching the first air pressure threshold, stopping the air compressor, opening the unloading valve and the regeneration valve, so that the airflow from the air compressor enters the drying tank through the regeneration valve in the reverse direction for regeneration back-blowing, and then blows out from the unloading valve; in response to the regeneration back-blowing stop condition being met, closing the unloading valve and the regeneration valve.

[0086] In addition, the logic instructions in the above-mentioned memory 630 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the 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, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0087] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the regeneration control method of the braking system of the whole vehicle provided by the above-mentioned methods, and the method includes: in response to the start-up condition of the air compressor being met, starting the air compressor so that the gas processed by the air compressor enters the drying tank for drying treatment; using the air pressure sensor to monitor the current air pressure value in the drying tank; in response to the current air pressure value in the drying tank reaching a first air pressure threshold, stopping the air compressor, opening the unloading valve and the regeneration valve, so that the airflow from the air compressor enters the drying tank through the regeneration valve in reverse for regeneration backblowing, and then blows out from the unloading valve; in response to the regeneration backblowing stop condition being met, closing the unloading valve and the regeneration valve.

[0088] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the regeneration control method of the braking system of the whole vehicle provided by the above-mentioned methods, the method comprising: in response to the start-up condition of the air compressor being met, starting the air compressor so that the gas processed by the air compressor enters the drying tank for drying treatment; using the air pressure sensor to monitor the current air pressure value in the drying tank; in response to the current air pressure value in the drying tank reaching a first air pressure threshold, stopping the air compressor, opening the unloading valve and the regeneration valve, so that the airflow from the air compressor enters the drying tank through the regeneration valve in reverse for regeneration backblowing, and then blows out from the unloading valve; in response to the regeneration backblowing stop condition being met, closing the unloading valve and the regeneration valve.

[0089] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0090] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A regenerative control unit for a braking system of a vehicle, characterized in that: The brake system includes a drying tank and an air compressor, and the regeneration control unit includes: an unloading valve, a regeneration valve, and an air pressure sensor; The air inlet end of the unloading valve is connected to one air outlet of the drying tank, the outlet end of the regeneration valve is connected to another air outlet of the drying tank, and the unloading valve and the regeneration valve are both electrically connected to the vehicle controller; Wherein, the air pressure sensor is arranged in the drying tank, and is used to obtain the pressure of the gas in the drying tank; Wherein, when the unloading valve and the regeneration valve are both opened, the gas output by the air compressor enters the drying tank through the regeneration valve for regeneration and back-flushing, and is then discharged from the outlet end of the unloading valve; When the regeneration backwashing time reaches the regeneration time threshold, or the current pressure value of the drying tank is less than the second pressure threshold, it is confirmed that the regeneration backwashing stop condition is met, and the unloading valve and the regeneration valve are closed; wherein the second pressure threshold is less than the first pressure threshold in the drying tank before the regeneration backwashing; The regeneration time threshold is calculated using a linear equation about an initial air pressure value, and the initial air pressure value is obtained using the air pressure sensor before the air compressor is started; Wherein, when the unloading valve is opened and the regeneration valve is closed, the gas in the drying tank is discharged from the outlet end of the unloading valve.

2. A regenerative control method for a braking system of a vehicle, characterized in that: The method is applied to the regenerative control unit of the braking system of the whole vehicle according to claim 1, and the method comprises: In response to satisfying the start-up condition of the air compressor, using the air pressure sensor to obtain the initial air pressure value in the drying tank, and starting the air compressor so that the gas processed by the air compressor enters the drying tank for drying; Using the air pressure sensor to monitor the current air pressure value in the drying tank; In response to the current air pressure value in the drying tank reaching a first air pressure threshold, the air compressor is stopped, and the unloading valve and the regeneration valve are opened, so that the air flow from the air compressor enters the drying tank in reverse through the regeneration valve for regeneration and back-blowing, and then blows out from the unloading valve; When the regeneration backwashing time reaches the regeneration time threshold, or the current pressure value of the drying tank is less than the second air pressure threshold, it is confirmed that the regeneration backwashing stop condition is met, and the unloading valve and the regeneration valve are closed; wherein the second air pressure threshold is less than the first air pressure threshold; and the regeneration time threshold is calculated using a linear equation about the initial air pressure value.

3. The regenerative control method of the braking system of a whole vehicle according to claim 2, characterized in that: The method further comprises: In response to the target vehicle being powered on for the first time in the current wake-up cycle, the unloading valve is opened within a preset time period to balance the internal air circuit of the drying tank and the external air pressure.

4. The regenerative control method of the braking system of a whole vehicle according to claim 2, characterized in that: The method further comprises: In response to detecting a shutdown and power-off instruction for the target vehicle, obtaining the current air pressure in the drying tank using the air pressure sensor; In response to the current air pressure in the drying tank being greater than a third preset threshold, the unloading valve and the regeneration valve are opened to allow the air flow from the air compressor to reversely enter the drying tank through the regeneration valve for regeneration and back-blowing to blow out the water vapor in the drying tank.

5. The regenerative control method of the braking system of a whole vehicle according to claim 2, characterized in that: The method further comprises: In response to the target vehicle being powered on for the first time in the current wake-up cycle and the ambient temperature being lower than a preset temperature threshold, the unloading valve and the air compressor are opened within a preset time period, so that the air heated by the air compressor flows through a pipeline between the drying tank and the air compressor and is blown out from the unloading valve.

6. The regenerative control method of the braking system of a whole vehicle according to claim 2, characterized in that: The method further comprises: s1: in response to the number of times the brake of the target vehicle is triggered within the first preset time period being greater than a preset number threshold, or the duration of the brake being triggered within the second preset time period being greater than a preset duration threshold, using the air pressure sensor to obtain a plurality of first air pressure values ​​in the drying tank within a third preset time period; s2: in response to the plurality of first air pressure values ​​being greater than a preset air pressure threshold, and the differences between the plurality of first air pressure values ​​being less than a preset difference threshold, sending an air pressure sensor function failure warning; or a: after the air compressor starts to work, using the air pressure sensor to obtain a plurality of second air pressure values ​​in the drying tank within a fourth preset time period; b: In response to the differences between the multiple second air pressure values ​​being less than a preset difference threshold, sending an air pressure sensor function failure warning.

7. A regenerative control device for a braking system of a vehicle, characterized in that: The device comprises: A starting module, for obtaining an initial air pressure value in the drying tank by using an air pressure sensor in response to satisfying a starting condition of the air compressor, and starting the air compressor so that the gas processed by the air compressor enters the drying tank for drying treatment; A monitoring module, used to monitor the current air pressure value in the drying tank using an air pressure sensor; a regeneration module, for stopping the air compressor and opening the unloading valve and the regeneration valve in response to the current air pressure value in the drying tank reaching a first air pressure threshold, so that the airflow from the air compressor enters the drying tank through the regeneration valve in reverse direction for regeneration and back-blowing, and then blows out from the unloading valve; The closing module is used to confirm that the regeneration backwashing stop condition is met when the regeneration time threshold is reached or the current pressure value of the drying tank is less than the second air pressure threshold, and close the unloading valve and the regeneration valve; wherein the second air pressure threshold is less than the first air pressure threshold; and the regeneration time threshold is calculated using a linear equation about the initial air pressure value.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the steps of the regenerative control method of the braking system of the whole vehicle as described in any one of claims 2 to 6 are implemented.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the regenerative control method of the braking system of the whole vehicle as claimed in any one of claims 2 to 6 are implemented.

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