Brake management system and long slope brake management method

Abstract

The invention relates to the technical field of pneumatic braking, and discloses a braking management system and a long slope braking management method.The system is characterized in that an original air compressor, an electric air compressor and a second air storage tank are connected with a first air storage tank and used for inflating the first air storage tank; the first pressure sensor is used for detecting first pressure in the first gas storage tank; the control module is connected with the original air compressor, the electric air compressor and the first pressure sensor and used for controlling the original air compressor to inflate the first air storage tank when the first pressure is larger than or equal to a first preset pressure threshold value or controlling the original air compressor to inflate the first air storage tank when the first pressure is smaller than the first preset pressure threshold value. And controlling the second air storage tank and / or the electric air compressor to inflate the first air storage tank. The air displacement of the air compressor can be prevented from being influenced by the rotating speed of the engine, the electric air compressor and the added air storage tank are combined to quickly supplement air for the original air storage tank, and enough air displacement is provided under the working condition of long-slope operation, so that enough braking is ensured, and normal operation is realized.

Description

Technical Field

[0001] The invention relates to the technical field of air brakes, and in particular to a brake management system and a long slope brake management method. Background Art

[0002] Since the ore layers underground are naturally formed, some are horizontal and some are non-horizontal. For non-horizontal ore layers, underground loaders will face long slope working conditions when working underground. If they work on the slope for a long time, they need to brake frequently. For the air brake system, the air tank pressure will gradually decrease, resulting in weak brakes of the entire vehicle and inability to operate normally.

[0003] In order to solve the above problems, conventional solution 1 in the prior art is to increase the gas tank, which can ensure that when the gas tank is fully pressurized, the brakes can be stepped on more than the ordinary system, but when the air pressure is low, it cannot solve the problem of long downhill slopes; solution 2: use a large-displacement air compressor, but because the air compressor is built into the engine, the space of the engine is limited, and the size of the air compressor cannot be increased indefinitely. At the same time, when going downhill, in order to control the speed, the vehicle is generally in an idling state. At this time, the speed of the air compressor is low, and the amount of gas consumed by braking is higher than the amount of gas generated by the air compressor, which still cannot meet the working conditions of long downhill slopes. Therefore, both of the above two solutions cannot provide sufficient gas, resulting in the inability to fully adapt to the working conditions of long slopes. Summary of the invention

[0004] In view of this, the present invention provides a brake management system and a long slope brake management method to solve the problem of insufficient gas supply under long slope operation conditions.

[0005] In the first aspect, the present invention provides a brake management system, comprising: a control module, an original air compressor, an air compressor, a first air tank, a second air tank and a first pressure sensor, wherein the original air compressor, the electric air compressor and the second air tank are connected to the first air tank for inflating the first air tank; the first pressure sensor is used to detect the gas pressure in the first air tank to obtain a first pressure; the control module is connected to the original air compressor, the electric air compressor and the first pressure sensor, and is used to control the original air compressor to inflate the first air tank when the first pressure is greater than or equal to a first preset pressure threshold, or to control the second air tank and / or the electric air compressor to inflate the first air tank when the first pressure is less than the first preset pressure threshold.

[0006] The brake management system provided by the present invention adds an electric air compressor and a second air tank to the existing management system. When the first pressure of the first air tank is greater than or equal to the first preset pressure threshold, a control module controls the original air compressor to inflate the first air tank. When the first pressure is greater than the first preset pressure threshold, the second air tank and / or the electric air compressor is controlled to inflate the first air tank. By additionally deploying an electric air compressor and an air tank, the present invention can avoid the exhaust volume of the original air compressor being affected by the engine speed. The electric air compressor is combined with the added air tank to quickly replenish the gas for the original air tank, providing sufficient exhaust volume under long slope working conditions, thereby ensuring sufficient braking and achieving normal operation.

[0007] In an optional embodiment, the system also includes: a second pressure sensor, the original air compressor and the electric air compressor are connected to the second air tank, wherein the second pressure sensor is used to detect the gas pressure in the second air tank to obtain a second pressure; the control module is also used to control the original air compressor and the electric air compressor to inflate the second air tank when the first pressure is greater than or equal to a third preset pressure threshold and the second pressure is less than a fourth preset pressure threshold.

[0008] The present invention can timely inflate the added gas tank when the gas is insufficient by detecting the gas pressure of the added gas tank, thereby ensuring that the gas in the original gas tank can be replenished in time when the gas is insufficient, instantly increasing the braking pressure and ensuring the braking effect.

[0009] In an optional embodiment, the original air compressor and the electric air compressor are connected to the first gas tank via a first one-way valve, the original air compressor and the electric air compressor are connected to the second gas tank via a first solenoid valve, and the second gas tank is connected to the first gas tank via a second one-way valve and a second solenoid valve; the first one-way valve or the second one-way valve is used to control the flow direction of the gas; the first solenoid valve and the second solenoid valve are both connected to the control module, and are used to adjust the working state under the control of the control module, so that the second gas tank inflates the first gas tank, or the original air compressor and the electric air compressor inflates the second gas tank.

[0010] The present invention can achieve gas isolation by deploying one-way valves before and after the gas tank, avoiding overall brake failure due to leakage of a single gas tank. At the same time, solenoid valves are deployed before and after the added gas tank, so that the added gas tank can inflate the original gas tank, or inflate the added gas tank, ensuring that the added gas tank can quickly provide gas to the original gas tank and instantly increase the brake pressure.

[0011] In an optional embodiment, the system also includes: an oil-water separation combination valve, located between the original air compressor and the electric air compressor and the first air tank and the second air tank, for filtering out the oil and water components in the gas exhausted by the original air compressor and / or the electric air compressor; a brake module, connected to the first air tank, for braking based on the gas provided by the first air tank during pneumatic braking; a parking brake module, connected to the first air tank and the control module, for braking under the control of the control module until the vehicle stops when the first pressure is less than a fifth preset pressure threshold.

[0012] The present invention can ensure smooth implementation of air brakes through the matching oil-water separation combined valve, brake module and parking brake module, and can achieve safe braking under different operating conditions to ensure the safety of workers.

[0013] In a second aspect, the present invention provides a management method for long slope braking, which is applied to a control module in a management system of the first aspect or any corresponding embodiment thereof, and the method comprises:

[0014] Acquire a first pressure of a first pressure sensor corresponding to the first gas storage tank;

[0015] If the first pressure is greater than or equal to a first preset pressure threshold, controlling the original air compressor to inflate the first air storage tank;

[0016] If the first pressure is less than the first preset pressure threshold, the second air storage tank and / or the electric air compressor are controlled to inflate the first air storage tank.

[0017] The management method for long slope braking provided by the present invention monitors the first pressure of the first air tank through the first pressure sensor. When the pressure is greater than or equal to the first preset pressure threshold, the first air tank is inflated by the original air compressor. When the pressure is less than the first preset pressure threshold, the first air tank is inflated by the second air tank and / or the electric air compressor. By monitoring the pressure of the air tank, the present invention can inflate it in time by two air compressors and one air tank when the gas is insufficient, so as to ensure sufficient braking, thereby fully adapting to the operating conditions of frequent braking on long slopes and achieving normal operation.

[0018] In an optional embodiment, if the first pressure is less than a first preset pressure threshold, the second air tank and / or the electric air compressor is controlled to inflate the first air tank, including: if the first pressure is less than the first preset pressure threshold, the second air tank is controlled to inflate the first air tank, and the inflation speed of the first air tank by the electric air compressor is controlled according to the first pressure; the second pressure of the second pressure sensor corresponding to the second air tank is obtained, and if the second pressure is less than a fourth preset pressure threshold, the second air tank is controlled to stop inflating the first air tank, and the original air compressor is controlled to inflate the first air tank; when the first pressure is greater than or equal to the third preset pressure threshold, the original air compressor is controlled to inflate the second air tank, and the inflation speed of the second air tank by the electric air compressor is controlled according to the second pressure; when the second pressure is greater than or equal to the third preset pressure threshold, the electric air compressor is controlled to stop inflating the first air tank and the second air tank.

[0019] The present invention controls different inflatable bodies according to the pressure of the air tank during the braking process, thereby ensuring that a sufficient amount of gas is provided to the air tank under operating conditions requiring frequent braking, so that sufficient pressure can be obtained each time the brake is applied to achieve normal operation.

[0020] In an optional implementation, the method further includes: monitoring the working state of the electric air compressor, and if the electric air compressor fails, or the first pressure is less than or equal to a sixth preset pressure threshold, controlling the parking brake module to exhaust air until the vehicle stops.

[0021] The present invention can ensure the safety of operation by braking when a fault occurs or the air pressure is too low, and is convenient for technicians to conduct inspections and troubleshoot in time to avoid accidents such as sliding down the slope.

[0022] In a third aspect, the present invention provides a long slope braking management device, the device comprising:

[0023] A pressure data acquisition module, used to acquire a first pressure of a first pressure sensor corresponding to a first gas storage tank;

[0024] a first inflation management module, configured to control the original air compressor to inflate the first air storage tank if the first pressure is greater than or equal to a first preset pressure threshold;

[0025] The second inflation management module is used to control the second air storage tank and / or the electric air compressor to inflate the first air storage tank if the first pressure is less than a first preset pressure threshold.

[0026] In a fourth aspect, the present invention provides a computer device, comprising: a memory and a processor, the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the long slope braking management method of the above-mentioned second aspect or any corresponding embodiment thereof by executing the computer instructions.

[0027] In a fifth aspect, the present invention provides a computer-readable storage medium having computer instructions stored thereon, the computer instructions being used to enable a computer to execute the long slope braking management method of the second aspect or any corresponding embodiment thereof.

[0028] In a sixth aspect, the present invention provides a computer program product, comprising computer instructions for causing a computer to execute the long slope braking management method of the first aspect or any corresponding embodiment thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 This is a block diagram of the components of a common brake management system;

[0031] Figure 2 is a block diagram of a brake management system according to an embodiment of the present invention;

[0032] Figure 3 is a flow chart of a method for managing long slope braking according to an embodiment of the present invention;

[0033] Figure 4 is a flow chart of another long slope braking management method according to an embodiment of the present invention;

[0034] Figure 5 is a structural block diagram of a management device for long slope braking according to an embodiment of the present invention;

[0035] Figure 6 It is a schematic diagram of the hardware structure of a computer device according to an embodiment of the present invention.

[0036] Explanation of the accompanying drawings: 1-electric air compressor; 2-original air compressor; 3-one-way valve; 4-one-way valve; 5-oil-water separation combination valve; 6-second pressure sensor; 7-first solenoid valve; 8-first pressure sensor; 9-first safety valve; 10-air tank C; 11-second solenoid valve; 12-one-way valve; 13-second safety valve; 14-one-way valve; 15-air tank B; 16-one-way valve; 17-one-way valve; 18-air tank A; Serial number 19-third safety valve; -20-third pressure sensor; 21-brake solenoid valve; 22-parking brake air chamber; 23-air brake valve; 24-front axle booster pump; 25-front axle brake caliper piston; 26-rear axle brake caliper piston; 27-rear axle booster pump. DETAILED DESCRIPTION

[0037] 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0038] The embodiment of the present invention is applicable to the scenario where frequent braking is required when the operating vehicle adopts the air brake system. Taking the dual-circuit braking system as an example, Figure 1 As shown, the common brake management system includes two air tanks (air tank A and air tank B) and an air compressor (referred to as air compressor). This air compressor is built into the engine, and the corresponding working process is as follows:

[0039] Driven by the engine, the original air compressor generates high-pressure gas, which discharges the oil and water components in the air through the oil-water separator combination valve, and controls the gas pressure at about 7.84 bar. After passing through the one-way valve, the gas reaches the gas tank B, which is equipped with a second safety valve to ensure that it is not over-pressurized. At the same time, after passing through the one-way valve, the gas reaches the gas tank A, which is equipped with a third safety valve to ensure that it is not over-pressurized. When the pressure of gas tanks B and A reaches 7.84 bar, the original air compressor starts to unload under the control of the oil-water separator combination valve, realizing the inflation work from the air machine to the gas tank.

[0040] When the air brake valve is pressed, the gas goes to the front axle booster pump and the rear axle booster pump respectively. The gas from the front axle booster pump goes to the front axle brake caliper piston to achieve front axle braking; the gas from the rear axle booster pump goes to the rear axle brake caliper piston to achieve rear axle braking.

[0041] Working principle of parking brake: when the second pressure sensor and the third pressure sensor detect a pressure ≥4.5bar, the air brake solenoid valve starts to be energized, the parking brake air chamber is ventilated, and the parking brake is released; when the pressure of air tank B and air tank A drops below 4.5bar, the air brake solenoid valve starts to be de-energized and the parking brake takes effect.

[0042] When going down a long slope, due to the frequent operation of the air brake valve, the gas pressure of air tank B and air tank A decreases. Although the original air compressor replenishes gas to the system, when the amount of gas consumed by the brake is greater than the amount of gas produced, the pressure of air tank A and air tank B continues to decrease. When it drops to <4.5bar, the air brake solenoid valve begins to cut off power, the parking brake air chamber is exhausted, the parking brake starts to work, the vehicle cannot move, affecting the use of the vehicle and failing to meet the long slope conditions.

[0043] Therefore, an embodiment of the present invention provides a brake management system, which provides sufficient gas by adding an electric air compressor and an air storage tank.

[0044] According to an embodiment of the present invention, a brake management system embodiment is provided. It should be noted that, as used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0045] In this embodiment, a brake management system is provided, which can be used for working vehicles such as underground loaders. Figure 2 is a block diagram of a brake management system according to an embodiment of the present invention. Figure 2 As shown, the system includes: a control module, an original air compressor, a first air tank, a first pressure sensor, an electric air compressor and a second air tank, wherein the original air compressor, the electric air compressor and the second air tank are connected to the first air tank for inflating the first air tank; the first pressure sensor is used to detect the gas pressure in the first air tank to obtain a first pressure; the control module is connected to the original air compressor, the electric air compressor and the first pressure sensor, and is used to control the original air compressor to inflate the first air tank when the first pressure is greater than or equal to a first preset pressure threshold, or control the second air tank and / or the electric air compressor to inflate the first air tank when the first pressure is less than the first preset pressure threshold.

[0046] Specifically, in the embodiment of the present invention, Figure 2As shown, the control module is not shown in the figure. Compared with the ordinary dual-circuit braking system, an electric air compressor and a second air tank are additionally added, wherein the first air tank is the air tank A and the air tank B included in the ordinary braking system, and the added second air tank is the air tank C. The original air compressor is the air compressor that comes with the engine. The addition of the electric air compressor can be unaffected by the engine speed and can produce enough air volume to ensure sufficient braking. The embodiment of the present invention determines whether to inflate the air tank according to the pressure in the air tank, so the air tank A and the air tank B are both equipped with corresponding third pressure sensors and second pressure sensors. At the same time, in order to prevent the air pressure in the air tank C from being too low when the air tank A and the air tank B are inflated using the air tank C, or to ensure that there is always sufficient spare gas in the air tank C, the air tank C is also equipped with a first pressure sensor.

[0047] In some optional embodiments, such as Figure 2 As shown, the electric air compressor and the original air compressor are connected to the gas tank A, gas tank B and gas tank C through the oil-water separation combination valve, which is used to filter out the oil and water components in the gas discharged by the electric air compressor and the original air compressor, and transport the dry gas to the gas tank A, gas tank B or gas tank C. In order to exhaust the gas tank C to inflate the gas tank A and gas tank B, or to inflate the gas tank C, the first solenoid valve (first solenoid valve) and the second solenoid valve (second solenoid valve) are deployed at both ends of the gas tank C, and the conduction and closing of the gas pipeline are realized by controlling the solenoid valve. Furthermore, in order to accurately control the flow direction of the gas and isolate the gas between each gas tank to avoid brake failure due to leakage of a single gas tank, the gas output ports of the electric air compressor and the original air compressor are both equipped with one-way valves, and a one-way valve (first one-way valve) is deployed at the connection between the oil-water separation combination valve and gas tanks A and B. A one-way valve (second one-way valve) is deployed between the exhaust end of gas tank C and gas tanks A and B. If the second solenoid valve can be guaranteed to be leak-free, the one-way valve deployed between gas tank C and gas tanks A and B can also be cancelled.

[0048] In some optional embodiments, in order to complete braking or braking, the brake management system also includes a brake module and a parking brake module. Figure 2As shown, the brake module includes: an air brake valve, a front axle booster pump, a front axle brake caliper piston, a rear axle booster pump and a rear axle brake caliper piston. The front end of the air brake valve is connected to the air tank A and the air tank B, and the rear end is connected to the front axle booster pump and the rear axle booster pump, so as to realize bidirectional braking based on the gas provided by the air tank A and the air tank B. The parking brake module includes: a brake solenoid valve and a parking brake air chamber. One end of the brake solenoid valve is connected to the air tank A, and the other end is connected to the parking brake air chamber. When the second pressure sensor and the third pressure sensor detect that the pressure is ≥4.5bar, the air brake solenoid valve starts to be energized, the parking brake air chamber is ventilated, and the parking brake is released. When the pressure of the air tank B and the air tank A drops below 4.5bar, the air brake solenoid valve starts to be de-energized, and the parking brake takes effect.

[0049] The brake management system provided by the present invention adds an electric air compressor and a second air tank to the existing management system. When the first pressure of the first air tank is greater than or equal to the first preset pressure threshold, a control module controls the original air compressor to inflate the first air tank. When the first pressure is greater than the first preset pressure threshold, the second air tank and / or the electric air compressor is controlled to inflate the first air tank. By additionally deploying an electric air compressor and an air tank, the present invention can avoid the exhaust volume of the original air compressor being affected by the engine speed. The electric air compressor is combined with the added air tank to quickly replenish the gas for the original air tank, providing sufficient exhaust volume under long slope working conditions, thereby ensuring sufficient braking and achieving normal operation.

[0050] According to an embodiment of the present invention, a management embodiment of long slope braking is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0051] In this embodiment, a long slope braking management method is provided, which can be used in the control module in the above-mentioned braking management system. Figure 3 : is a flow chart of a management method for long slope braking according to an embodiment of the present invention, such as Figure 3 As shown, the process includes the following steps:

[0052] Step S301, obtaining a first pressure of a first pressure sensor corresponding to a first gas storage tank.

[0053] Specifically, in the embodiment of the present invention, taking the dual-circuit brake system as an example, the first air tank includes air tank A and air tank B, and is respectively provided with a third pressure sensor and a second pressure sensor. During the pneumatic braking process, in order to ensure that there is sufficient gas in air tank A and air tank C, the third pressure sensor detects the gas pressure in air tank A in real time, and the second pressure sensor detects the pressure in air tank B in real time. Generally, the pressures in air tank A and air tank B change synchronously, so the embodiment of the present invention is collectively referred to as the first pressure, and the first pressure is sent to the control module, and the control module determines whether it is necessary to inflate air tank A and air tank B according to the current first pressure.

[0054] Step S302: If the first pressure is greater than or equal to the first preset pressure threshold, the original air compressor is controlled to inflate the first air storage tank.

[0055] Specifically, in the embodiment of the present invention, when braking is not frequent, the gas in the gas tank A and the gas tank B can be provided independently by the original air compressor under normal circumstances, and the process is as follows: when the first pressure of the gas tank A and the gas tank B are both ≥ the first preset pressure threshold, for example, 5.5 bar, the gas from the original air compressor passes through the one-way valve 2 to the oil-water separation combination valve, and the oil and water components in the air are filtered out, and the dry gas is delivered to the gas tank A through the one-way valve 3, and the gas is delivered to the gas tank B through the one-way valve. The gas tank A is equipped with a third safety valve and a third pressure sensor, and the gas tank B is equipped with a second safety valve and a second pressure sensor. The safety valve is used to ensure that the pressure of the gas tank does not exceed the set pressure, for example, 7.84 bar, and the pressure sensor detects the pressure of the gas tank. When the operator steps on the air brake valve, the gas is respectively input into the front axle booster pump and the rear axle booster pump 24, and then into the front axle brake caliper and the rear axle brake caliper respectively to achieve braking. When braking is completed, since braking is not frequent, the original air compressor can quickly replenish gas to ensure that the air pressure is higher than 5.5 bar, generally in non-long slope conditions.

[0056] Step S303: if the first pressure is less than the first preset pressure threshold, control the second air storage tank and / or the electric air compressor to inflate the first air storage tank.

[0057] Specifically, in an embodiment of the present invention, when in a long slope condition, frequent braking may be required. During frequent braking, the gas in gas tank A and gas tank B flows out quickly, and the original air compressor cannot be quickly replenished, so the control module intervenes to control gas tank C and / or the original air compressor to quickly inflate gas tank A and gas tank B. The specific inflation process needs to be adjusted according to the first pressure of gas tank A and gas tank B, and the second pressure of gas tank C, so as to ensure that gas tank A and gas tank B can be quickly inflated, and gas tank C can be inflated when the gas in gas tank A and gas tank B is sufficient.

[0058] In some optional embodiments, the electric air compressor used in the embodiment of the present invention is an electric air compressor, which can adjust the speed according to the pressure values ​​of gas tank A and gas tank B during operation, that is, the speed is increased when the gas tank pressure is low, and the air is quickly inflated, and the speed is reduced when the gas tank pressure is high. The specific control process is a conventional technical means in the field and will not be repeated here.

[0059] In some optional implementations, the working state of the electric air compressor is still monitored in real time in the embodiments of the present invention. If the electric air compressor fails, or when both the electric air compressor and the original air compressor are working, the first pressure of the air tank A and the air tank B is ≤ the sixth preset pressure threshold, for example, 4.5 bar, but not limited to this, the brake solenoid valve starts to cut off the power, the parking brake air chamber starts to exhaust, the parking brake is performed, and the maintenance personnel are waiting for troubleshooting. After the electric air compressor is repaired, or the first pressure of the air tank A or the air tank B increases, safe driving is performed.

[0060] The management method for long slope braking provided by the present invention monitors the first pressure of the first air tank through the first pressure sensor. When the pressure is greater than or equal to the first preset pressure threshold, the first air tank is inflated by the original air compressor. When the pressure is less than the first preset pressure threshold, the first air tank is inflated by the second air tank and / or the electric air compressor. By monitoring the pressure of the air tank, the present invention can inflate it in time by two air compressors and one air tank when the gas is insufficient, so as to ensure sufficient braking, thereby fully adapting to the operating conditions of frequent braking on long slopes and achieving normal operation.

[0061] In this embodiment, a long slope braking management method is provided, which can be used in the control module in the above-mentioned braking management system. Figure 4 : is a flow chart of a management method for long slope braking according to an embodiment of the present invention, such as Figure 4 As shown, the process includes the following steps:

[0062] Step S401, obtaining the first pressure of the first pressure sensor corresponding to the first gas storage tank. Figure 3 Step S301 of the illustrated embodiment will not be described in detail here.

[0063] Step S402: If the first pressure is greater than or equal to the first preset pressure threshold, the original air compressor is controlled to inflate the first air storage tank. Figure 3 Step S302 of the illustrated embodiment will not be described in detail here.

[0064] Step S403: if the first pressure is less than the first preset pressure threshold, control the second air storage tank and / or the electric air compressor to inflate the first air storage tank.

[0065] Specifically, the above step S403 includes:

[0066] Step S4031, if the first pressure is less than the first preset pressure threshold, control the second air tank to inflate the first air tank, and control the filling speed of the first air tank by the electric air compressor according to the first pressure.

[0067] Specifically, in an embodiment of the present invention, in the initial state, the pressures of air tank A, air tank B and air tank C are all ≥7.5 bar. When the operator steps on the air brake valve to brake, the first pressures of air tank A and air tank B begin to decrease. When the first pressures of air tank A and air tank B are ≥5.5 bar, only the original air compressor works.

[0068] In some optional embodiments, such as Figure 2 As shown, when the air brake valve continues to brake, the gas in the air tank A and the air tank B frequently flows out until the first pressure of the air tank A and the air tank B is less than 5.5 bar, the first solenoid valve does not work, the electric air compressor and the second solenoid valve start to work, the air tank C inflates the air into the air tank A and the air tank B, and the electric air compressor inflates the air into the air tank A and the air tank B, the air tank A and the air tank B quickly replenish the gas, and the first pressure quickly recovers.

[0069] Step S4032, obtaining the second pressure of the second pressure sensor corresponding to the second gas storage tank. If the second pressure is less than the fourth preset pressure threshold, controlling the second gas storage tank to stop inflating the first gas storage tank, and controlling the original air compressor to inflate the first gas storage tank.

[0070] Specifically, in the embodiment of the present invention, when the gas in the gas tank C is charged into the gas tank A and the gas tank B, the gas in the gas tank C decreases rapidly, and the corresponding second pressure decreases rapidly. Therefore, the second gas pressure in the gas tank C is detected in real time by the first pressure sensor and sent to the control module. When the second pressure of the gas tank C is less than the fourth preset pressure threshold, for example, 6 bar, but not limited thereto, it proves that there is less gas in the gas tank C, the second solenoid valve is closed, and the gas tank C stops charging the gas tank A and the gas tank B, and only charges the gas tank A and the gas tank B, and the pressure is quickly established.

[0071] In some optional embodiments, if the gas pressure in gas tank A and gas tank B is not enough at this time, the electric air compressor and the original air compressor continue to inflate gas tank A and gas tank B until the pressure of gas tank A and gas tank B is ≥ a third preset pressure threshold, for example 7.5 bar, but not limited to this. At this time, the pressure of gas tank C is 6 bar.

[0072] Step S4033, when the first pressure is greater than or equal to the third preset pressure threshold, control the original air compressor to inflate the second air storage tank, and control the filling speed of the second air storage tank by the electric air compressor according to the second pressure.

[0073] Specifically, in an embodiment of the present invention, when the pressure of gas tank A and gas tank B is ≥7.5 bar, it proves that there is sufficient gas in gas tank A and gas tank B, the first solenoid valve opens and starts working, and the electric air compressor and the original air compressor continue to inflate gas tank A and gas tank B while inflating gas tank C until the second pressure of gas tank C is ≥7.5 bar.

[0074] Step S4034: when the second pressure is greater than or equal to the third preset pressure threshold, control the electric air compressor to stop inflating the first air storage tank and the second air storage tank.

[0075] Specifically, in an embodiment of the present invention, when the second pressure of gas tank C is ≥7.5 bar, the corresponding first pressure of gas tank A and gas tank B is ≥7.5 bar, which proves that there is enough gas in gas tank A, gas tank B and gas tank C. At this time, the first solenoid valve is closed, the electric air compressor stops working, and returns to the initial state. In summary, the working conditions of the electric air compressor: it works when the pressure of gas tank A and gas tank B is less than 5.5 bar or the pressure of gas tank C is less than 7.5 bar; the working conditions of the first solenoid valve: it is powered on when the pressure of gas tank A and gas tank B is ≥7.5 bar and the pressure of gas tank C is less than 7.5 bar, and both conditions are met at the same time; the working conditions of the second solenoid valve: it is opened when the pressure of gas tank A and gas tank B is less than 5.5 bar, and it is closed when the pressure of gas tank C is ≤6 bar. Therefore, through the above-mentioned cyclic inflation process, the brake management system can meet the long downhill working conditions.

[0076] The management method for long slope braking provided by the present invention monitors the first pressure of the first air tank through the first pressure sensor. When the pressure is greater than or equal to the first preset pressure threshold, the first air tank is inflated by the original air compressor. When the pressure is less than the first preset pressure threshold, the first air tank is inflated by the second air tank and / or the electric air compressor. By monitoring the pressure of the air tank, the present invention can inflate it in time by two air compressors and one air tank when the gas is insufficient, so as to ensure sufficient braking, thereby fully adapting to the operating conditions of frequent braking on long slopes and achieving normal operation.

[0077] In this embodiment, a management device for long slope braking is also provided, which is used to implement the above embodiments and preferred implementations, and the descriptions that have been made will not be repeated. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0078] This embodiment provides a management device for long slope braking, such as Figure 5 As shown, including:

[0079] The pressure data acquisition module 501 is used to acquire the first pressure of the first pressure sensor corresponding to the first gas storage tank.

[0080] The first inflation management module 502 is used to control the original air compressor to inflate the first air storage tank if the first pressure is greater than or equal to a first preset pressure threshold.

[0081] The second inflation management module 503 is used to control the second air storage tank and / or the electric air compressor to inflate the first air storage tank if the first pressure is less than the first preset pressure threshold.

[0082] In some optional embodiments, the second inflation management module 503 includes:

[0083] The first control unit is used to control the second air storage tank to inflate the first air storage tank if the first pressure is less than the first preset pressure threshold, and control the filling speed of the first air storage tank by the electric air compressor according to the first pressure.

[0084] The second control unit is used to obtain the second pressure of the second pressure sensor corresponding to the second air tank. If the second pressure is less than a fourth preset pressure threshold, the second air tank is controlled to stop inflating the first air tank, and the original air compressor is controlled to inflate the first air tank.

[0085] The third control unit is used to control the original air compressor to inflate the second air storage tank when the first pressure is greater than or equal to the third preset pressure threshold, and control the filling speed of the second air storage tank by the electric air compressor according to the second pressure.

[0086] The fourth control unit is used to control the electric air compressor to stop inflating the first air storage tank and the second air storage tank when the second pressure is greater than or equal to a third preset pressure threshold.

[0087] In some optional embodiments, the device further comprises:

[0088] The parking brake module is used to monitor the working status of the electric air compressor. If the electric air compressor fails, or the first pressure is less than or equal to the sixth preset pressure threshold, the parking brake module is controlled to exhaust air until the vehicle stops.

[0089] The further functional description of each of the above modules and units is the same as that of the above corresponding embodiments and will not be repeated here.

[0090] The long slope braking management device in this embodiment is presented in the form of a functional unit, where the unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that executes one or more software or fixed programs, and / or other devices that can provide the above functions.

[0091] The embodiment of the present invention also provides a computer device having the above Figure 5 The management device for long slope braking is shown.

[0092] See also Figure 6 , Figure 6 is a schematic diagram of the structure of a computer device provided by an optional embodiment of the present invention, such as Figure 6 As shown, the computer device includes: one or more processors 100, a memory 200, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. Various components are connected to each other using different buses for communication, and can be installed on a common mainboard or installed in other ways as needed. The processor can process the instructions executed in the computer device, including instructions stored in or on the memory to display the graphical information of the GUI on an external input / output device (such as, a display device coupled to the interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple computer devices can be connected, and each device provides some necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Figure 6 A processor 100 is taken as an example.

[0093] The processor 100 may be a central processing unit, a network processor or a combination thereof. The processor 100 may further include a hardware chip. The hardware chip may be a dedicated integrated circuit, a programmable logic device or a combination thereof. The programmable logic device may be a complex programmable logic device, a field programmable logic gate array, a general purpose array logic or any combination thereof.

[0094] The memory 200 stores instructions executable by at least one processor 100, so that the at least one processor 100 executes the method shown in the above embodiment.

[0095] The memory 200 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required by at least one function; the data storage area may store data created according to the use of the computer device, etc. In addition, the memory 200 may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some optional embodiments, the memory 200 may optionally include a memory remotely arranged relative to the processor 100, and these remote memories may be connected to the computer device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0096] The memory 200 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk or a solid state drive; the memory 200 may also include a combination of the above types of memory.

[0097] The computer device further includes a communication interface 300 for the computer device to communicate with other devices or a communication network.

[0098] The embodiment of the present invention also provides a computer-readable storage medium. The method according to the embodiment of the present invention can be implemented in hardware, firmware, or can be implemented as a computer code that can be recorded in a storage medium, or can be implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and will be stored in a local storage medium through a network download, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state hard disk, etc.; further, the storage medium can also include a combination of the above types of memories. It can be understood that a computer, a processor, a microprocessor controller, or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor, or hardware, the method shown in the above embodiment is implemented.

[0099] A part of the present invention may be applied as a computer program product, such as a computer program instruction, which, when executed by a computer, can call or provide the method and / or technical solution according to the present invention through the operation of the computer. Those skilled in the art should understand that the existence of the computer program instruction in a computer-readable medium includes, but is not limited to, a source file, an executable file, an installation package file, etc., and accordingly, the way in which the computer program instruction is executed by the computer includes, but is not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. Here, the computer-readable medium may be any available computer-readable storage medium or communication medium accessible to the computer.

[0100] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A brake management system, comprising: control module, original air compressor, first air storage tank and first pressure sensor, characterized in that the system also includes: an electric air compressor and a second air storage tank, wherein, The original air compressor, the electric air compressor and the second air tank are connected to the first air tank and are used to inflate the first air tank; The first pressure sensor is used to detect the gas pressure in the first gas storage tank to obtain a first pressure; The control module is connected to the original air compressor, the electric air compressor and the first pressure sensor, and is used to control the original air compressor to inflate the first air tank when the first pressure is greater than or equal to a first preset pressure threshold, or to control the second air tank and / or the electric air compressor to inflate the first air tank when the first pressure is less than the first preset pressure threshold.

2. The system according to claim 1, characterized in that Also includes: The second pressure sensor, the original air compressor and the electric air compressor are connected to the second air storage tank, wherein, The second pressure sensor is used to detect the gas pressure in the second gas storage tank to obtain a second pressure; The control module is also used to control the original air compressor and the electric air compressor to inflate the second air storage tank when the first pressure is greater than or equal to a third preset pressure threshold and the second pressure is less than a fourth preset pressure threshold.

3. The system according to claim 2, characterized in that The original air compressor and the electric air compressor are connected to the first air tank via a first one-way valve, the original air compressor and the electric air compressor are connected to the second air tank via a first solenoid valve, and the second air tank is connected to the first air tank via a second one-way valve and a second solenoid valve; The first one-way valve or the second one-way valve is used to control the flow direction of the gas; The first solenoid valve and the second solenoid valve are both connected to the control module, and are used to adjust the working state under the control of the control module so that the second air tank inflates the first air tank, or the original air compressor and the electric air compressor inflates the second air tank.

4. The system according to claim 1, characterized in that Also includes: An oil-water separation combined valve, located between the original air compressor and the electric air compressor and the first air storage tank and the second air storage tank, for filtering out oil and water components in the gas discharged from the original air compressor and / or the electric air compressor; A brake module, connected to the first gas tank, and used for braking based on the gas provided by the first gas tank during pneumatic braking; The parking brake module is connected to the first air storage tank and the control module, and is used for braking until the vehicle stops under the control of the control module when the first pressure is less than a fifth preset pressure threshold.

5. A method for managing long slope braking, applied to a control module in a braking management system according to any one of claims 1 to 4, characterized in that: The method comprises: Acquire a first pressure of a first pressure sensor corresponding to the first gas storage tank; If the first pressure is greater than or equal to a first preset pressure threshold, controlling the original air compressor to inflate the first air storage tank; If the first pressure is less than the first preset pressure threshold, the second air storage tank and / or the electric air compressor are controlled to inflate the first air storage tank.

6. The method according to claim 5, characterized in that If the first pressure is less than the first preset pressure threshold, controlling the second air storage tank and / or the electric air compressor to inflate the first air storage tank includes: If the first pressure is less than the first preset pressure threshold, controlling the second air tank to inflate the first air tank, and controlling the inflation speed of the first air tank by the electric air compressor according to the first pressure; Obtaining a second pressure of a second pressure sensor corresponding to the second air storage tank, and if the second pressure is less than a fourth preset pressure threshold, controlling the second air storage tank to stop inflating the first air storage tank, and controlling the original air compressor to inflate the first air storage tank; When the first pressure is greater than or equal to a third preset pressure threshold, controlling the original air compressor to inflate the second air storage tank, and controlling the inflation speed of the second air storage tank by the electric air compressor according to the second pressure; When the second pressure is greater than or equal to the third preset pressure threshold, the electric air compressor is controlled to stop inflating the first air storage tank and the second air storage tank.

7. The method according to claim 5, characterized in that Also includes: The working state of the electric air compressor is monitored. If the electric air compressor fails or the first pressure is less than or equal to a sixth preset pressure threshold, the parking brake module is controlled to exhaust air until the vehicle stops.

8. A long slope braking management device, characterized in that: The device comprises: A pressure data acquisition module, used to acquire a first pressure of a first pressure sensor corresponding to a first gas storage tank; a first inflation management module, configured to control the original air compressor to inflate the first air storage tank if the first pressure is greater than or equal to a first preset pressure threshold; The second inflation management module is used to control the second air storage tank and / or the electric air compressor to inflate the first air storage tank if the first pressure is less than the first preset pressure threshold.

9. A computer device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the long slope braking management method according to any one of claims 5 to 7 by executing the computer instructions.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute the long slope braking management method according to any one of claims 5 to 7.

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