Vehicle air compressor pipeline deicing device, vehicle and control method of vehicle air compressor pipeline deicing device

Abstract

The invention relates to a vehicle air compressor pipeline deicing device, a vehicle and a control method of the vehicle air compressor pipeline deicing device, and belongs to the field of vehicle braking devices. The device comprises an air supply loop and a flow limiting piece, the air supply loop comprises an air compressor module and an air treatment module, and the air treatment module communicates with an air outlet of the air compressor module through an air outlet pipeline; the flow limiting piece comprises an air inlet and an air outlet, the air inlet communicates between the air outlet pipeline and the air processing module, the air outlet communicates with the atmosphere, so that working back pressure is generated in the air supply loop, and the working back pressure is smaller than or equal to the opening pressure of the flow limiting piece; when the pressure in the air supply loop reaches the opening pressure, the air inlet is communicated with the air outlet; when the pressure in the air supply loop is smaller than the opening pressure, the air inlet is isolated from the air outlet. The air inlet of the flow limiting piece is connected with the air outlet pipeline of the air compressor module, and the air outlet of the flow limiting piece is communicated with the atmosphere, so that the whole air supply loop generates working back pressure, and the efficient deicing operation that compressed air is rapidly heated is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle braking devices, and in particular to a vehicle air compressor pipeline deicing device, a vehicle and a control method thereof. Background Art

[0002] The braking device of new energy commercial vehicles is powered by an electric air compressor (hereinafter referred to as "electric air compressor"). The energy supply circuit of the entire braking device is composed of a vehicle controller, an all-in-one controller, an electric air compressor, an air compressor outlet pipe and an air processing module.

[0003] The start and stop of the electric air compressor is controlled by the vehicle controller through the all-in-one controller. After completing the pumping process, the electric air compressor is powered off and stopped. Compared with traditional fuel vehicle air compressors, electric air compressors not only have good shutdown energy-saving effects, but also have the advantages of low exhaust temperature, less wear, and less carbon deposits.

[0004] However, in the cold and humid winter environment, the low exhaust temperature can easily cause the condensed water produced by the electric air compressor during the compression process to freeze in the air compressor outlet pipe, especially near the air inlet of the dryer or air handling module. After freezing, the outlet circuit of the electric air compressor is blocked, making it impossible for the vehicle to inflate the air storage cylinder. At the same time, it can also cause other faults such as excessive outlet pressure of the air compressor, frequent opening of the safety valve, and increased load current of the multi-in-one power supply. Summary of the invention

[0005] Based on this, it is necessary to provide a vehicle air compressor pipeline deicing device, vehicle and its control method to address the technical problem of icing of electric air compressor pipelines in new energy vehicles under high cold and high humidity conditions.

[0006] In the first aspect, the present application provides a vehicle air compressor pipeline deicing device, which adopts the following technical solution:

[0007] A vehicle air compressor pipeline deicing device includes an air supply circuit and a flow limiting component, wherein the air supply circuit includes an air compressor module and an air processing module, and the air processing module is connected to the air outlet of the air compressor module through an air outlet pipeline; the flow limiting component includes an air inlet and an air outlet arranged relatively to each other, the air inlet is connected between the air outlet pipeline and the air processing module, and the air outlet is used to connect to the atmosphere and generate a working back pressure in the air supply circuit, and the working back pressure is less than or equal to the opening pressure of the flow limiting component; wherein when the pressure in the air supply circuit reaches the opening pressure of the flow limiting component, the air inlet is connected to the air outlet; when the pressure in the air supply circuit is less than the opening pressure of the flow limiting component, the air inlet is isolated from the air outlet.

[0008] In one embodiment, the air processing module includes an electronically controlled air processing unit, a front air storage cylinder and a rear air storage cylinder, the air inlet end of the electronically controlled air processing unit is connected to the flow limiting member and the air outlet pipeline, and the air outlet end of the electronically controlled air processing unit is connected to the front air storage cylinder and the rear air storage cylinder respectively.

[0009] In one of the embodiments, the opening pressure of the flow limiting member is greater than the unloading pressure of the electronically controlled air handling unit and less than the opening pressure of the safety valve of the air compressor module.

[0010] In one embodiment, the flow limiting component includes at least any one of a relief valve, a pressure limiting valve, and a safety valve.

[0011] In one of the embodiments, the air supply circuit further includes a control module, which is used to obtain vehicle operating parameters and control the air compressor module and the air treatment module to perform de-icing operations when the vehicle operating parameters meet preset operating conditions.

[0012] In one of the embodiments, the vehicle operating condition parameters include vehicle speed parameters, ambient temperature parameters and system pressure parameters.

[0013] In a second aspect, the present application provides a control method for controlling the above-mentioned vehicle air compressor pipeline deicing device, which adopts the following steps:

[0014] Acquiring vehicle operating condition parameters, wherein the vehicle operating condition parameters at least include an ambient temperature parameter;

[0015] When the vehicle operating condition parameters meet the preset operating condition, the air compressor pipeline deicing operation is performed for a preset operating time, and the preset operating time is set according to the ambient temperature parameter.

[0016] In one embodiment, the performing of the air compressor pipeline deicing operation includes: the air compressor module performs a continuous pumping operation; and the air handling module maintains a working mode.

[0017] In one embodiment, setting the preset operating time according to the ambient temperature parameters includes: when the ambient temperature parameters meet the cold working condition, setting the preset operating time to the first operating time; when the ambient temperature parameters meet the severe cold working condition, setting the preset operating time to the second operating time; wherein the temperature of the cold working condition is higher than the temperature of the severe cold working condition, and the first operating time is less than the second operating time.

[0018] In a third aspect, the present application provides a vehicle, which adopts the following technical solution:

[0019] A vehicle comprises the above-mentioned vehicle air compressor pipeline deicing device.

[0020] The above-mentioned vehicle air compressor pipeline deicing device connects the air inlet of the flow limiting component to the air outlet pipeline of the air compressor module, and the air outlet of the flow limiting component is connected to the atmosphere, so that the air supply circuit as a whole generates working back pressure, thereby achieving efficient deicing operation by quickly heating up the compressed air. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural principle diagram of a vehicle air compressor pipeline deicing device in one embodiment of the present application.

[0022] Figure 2 1 is a structural diagram of a current limiting component in an embodiment of the present application.

[0023] Figure 3 This is a structural schematic diagram of a vehicle air compressor pipeline deicing device in another embodiment of the present application.

[0024] Figure 4 This is a flow chart of a control method for a vehicle air compressor pipeline deicing device in one embodiment of the present application.

[0025] Notes on the attached drawings:

[0026] 1. Air compressor module; 21. Electronically controlled air handling unit; 22. Front air storage cylinder; 23. Rear air storage cylinder; 3. Exhaust pipe; 4. Connecting pipes; 51. Front pressure sensor; 52. Rear pressure sensor; 53. All-in-one controller; 54. Vehicle controller; 55. Atmospheric temperature sensor; 6. Flow limiting device; 61. Upper shell; 62. Lower shell; 63. Air inlet; 64. Air outlet; 65. Diaphragm; 66. Bushing; 67. Adjustment spring. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0029] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0031] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0033] The following is combined with Figure 1-4 The embodiments of the present application are described in further detail.

[0034] See also Figure 1 , Figure 1 The structural principle diagram of the vehicle air compressor pipeline deicing device in one embodiment of the present application is shown. One embodiment of the present application provides a vehicle air compressor pipeline deicing device, specifically a pipeline deicing device used in the braking system of a new energy commercial vehicle, and the pipeline deicing device at least includes an air supply circuit and a flow limiting member 6. Among them, the air supply circuit includes an air compressor module 1 and an air treatment module, and the air outlet 64 of the air compressor module 1 is connected to the air inlet 63 of the air treatment module through the air outlet pipeline 3. The flow limiting member 6 is installed between the air compressor module 1 and the air treatment module, and is located at one end of the air outlet pipeline 3 away from the air outlet 64 of the air compressor module 1, near the air inlet 63 of the air treatment module.

[0035] Specifically, the flow limiting member 6 includes an air inlet 63 and an air outlet 64 that are relatively arranged. The air inlet 63 of the flow limiting member 6 is connected to the end of the air outlet pipeline 3 (the end away from the air compressor module 1) and the air inlet 63 of the air handling module through the connecting pipe 4, and the air outlet 64 of the flow limiting member 6 is connected to the atmosphere.

[0036] According to the ideal gas law (PV=nRT), when gas is compressed, if the volume decreases (V↓) and the pressure increases (P↑), the temperature (T↑) will rise significantly. The setting of the flow limiter 6 enables the air supply circuit to generate working back pressure. When the high-temperature compressed air flows through the pipeline, it directly transfers heat to the pipe wall, melts the ice layer or prevents ice from forming, significantly improves the deicing efficiency, and achieves an efficient deicing effect with rapid heating of compressed air. In addition, the air consumed by deicing does not flow through the dryer, which will not reduce the service life of the dryer.

[0037] In the embodiment of the present application, the flow limiter 6 is provided with an opening pressure, and the working back pressure is less than or equal to the opening pressure. The flow limiter 6 forms a working back pressure consistent with the opening pressure of the flow limiter 6 in the air supply circuit by limiting the free discharge of air, forcing the air compressor to continuously compress the air to maintain the pressure. This continuous compression process causes the gas temperature to rise rapidly.

[0038] Among them, the opening pressure of the flow limiting component 6 is greater than the unloading pressure of the air processing module, and less than the opening pressure of the safety valve of the air compressor module 1. The present application optimizes the opening pressure threshold of the flow limiting component 6 so that the opening pressure threshold of the flow limiting component 6 matches the unloading pressure of the air processing module and the opening pressure of the safety valve of the air compressor module 1, which can effectively prevent the brake system from being overloaded by ice, prevent the safety valve of the air compressor module 1 from being opened frequently and the safety valve from failing early, and prevent the service life of the drying tank from being reduced, which helps to ensure the operational safety of the brake system.

[0039] When the pressure in the air supply circuit reaches the opening pressure, the air inlet 63 is connected to the air outlet 64, and the flow limiter 6 is briefly opened. At this time, the air outlet 64 of the flow limiter 6 discharges excess high-pressure gas to the outside and then closes. The setting of the flow limiter 6 allows the air supply circuit to maintain a working back pressure consistent with the opening pressure of the flow limiter 6, compressing the air to generate heat to achieve the deicing operation; when the pressure in the air supply circuit is less than the opening pressure, the air inlet 63 is isolated from the air outlet 64, and the flow limiter 6 is in a closed state.

[0040] The deicing device adopts the above-mentioned structural design. Through the setting of the flow limiter 6, when the system pressure reaches the opening pressure of the flow limiter 6, the air outlet of the flow limiter 6 is briefly opened to release excess gas and then closed. This cycle allows the air compressor module 1 to repeatedly compress the air and continuously produce high-temperature gas, rather than releasing the pressure all at once to cause a sudden drop in temperature. Compared with the traditional unloading mode, where the air compressor frequently starts and stops, causing temperature fluctuations, the stable back pressure maintained by the flow limiter 6 ensures the continuous output of heat and avoids large temperature fluctuations in the air supply circuit, thereby improving the stability of deicing.

[0041] In some embodiments, the air outlet 64 of the flow limiting component 6 can also be used to discharge the moisture generated during the de-icing process directly into the atmosphere, which does not affect the service life of the air handling module and can effectively prevent the failure of the flow limiting component 6 from causing insufficient pressure in the entire braking system circuit.

[0042] Combination Figure 2 As shown, Figure 2 The structure diagram of the flow limiting component in one embodiment of the present application is shown. In the above embodiment, the air compressor module 1 is used to compress the external air to generate high-pressure gas and transmit it to the air processing module through the outlet pipe 3. The flow limiting component 6 can be any one of a relief valve, a pressure limiting valve, and a safety valve. In this application, only the flow limiting valve is used as an example for illustration.

[0043] When a safety valve is used as the flow limiting element 6, the connection method of the air inlet 63 and the air outlet 64 is the same as that of the present application. Figure 2However, when a pressure limiting valve is used as the flow limiting element 6, the connection method of the air inlet 63 and the air outlet 64 is opposite to that of the overflow valve. It can be understood that in some other embodiments, other valve bodies with flow limiting function can also be used as the flow limiting element 6, which is not limited in this application.

[0044] Combination Figure 1 and Figure 2 As shown, the flow limiting member 6 used in the embodiment of the present application is specifically a diaphragm-type overflow valve structure, which is connected to the air inlet 63 of the flow limiting member 6 by a connecting pipe 4 at the end of the air outlet pipeline 3 of the air compressor module 1, so as to introduce the air pressure in the air outlet pipeline 3 into the flow limiting member 6. When the system pressure exceeds the opening pressure of the flow limiting member 6, the excess high pressure is discharged into the atmosphere from the air outlet 64 of the flow limiting member 6, but the pressure at the air inlet 63 is still maintained near the opening pressure, providing a continuous working back pressure for the deicing process.

[0045] by Figure 2 As shown in the example, the flow limiting member 6 includes a shell consisting of an upper shell 61 and a lower shell 62, and an air flow channel for gas circulation is provided in the lower shell 62, and the air flow channel runs through the lower shell 62 to form a relatively arranged air inlet 63 and an air outlet 64, wherein the air inlet 63 is used to connect to the end of the air outlet pipeline 3, and the air outlet 64 is used to connect to the atmosphere.

[0046] The shell also includes a diaphragm 65 for switching the on / off state between the air inlet 63 and the air outlet 64, and a sleeve 66 and an adjusting spring 67 for pressing the diaphragm 65 so that the diaphragm 65 blocks the air flow channel. The adjusting spring 67 and the sleeve 66 are jointly in contact with the upper surface of the diaphragm 65, so that the diaphragm 65 always maintains a tendency to move toward the lower shell 62 to block the air flow channel.

[0047] During the deicing operation, gas enters from the air inlet 63. When the internal pressure of the system does not reach the opening pressure of the flow-limiting member 6, the diaphragm 65 is blocked between the air inlet 63 and the air outlet 64, and no gas is discharged from the air outlet 64 of the flow-limiting member 6. When the internal pressure of the system exceeds the opening pressure, the diaphragm 65 pushes the bushing 66 upward under the pressure, and the adjustment spring 67 is compressed. The high-pressure gas entering from the air inlet 63 passes through the gap between the lower surface of the diaphragm 65 and the lower shell 62 and is discharged from the air outlet 64, thereby achieving the regulation of the pressure in the circuit of the air inlet 63.

[0048] Continue reading Figure 1 As shown, in some embodiments, the air processing module includes an electronically controlled air processing unit 21, a front air storage cylinder 22 and a rear air storage cylinder 23, which cooperate with each other through pipelines and valves to realize the distribution, processing and storage functions of compressed air.

[0049] The electric air handling unit 21 is modularly designed, specifically a semi-electric air handling unit, which integrates an air dryer, a multi-stage filter device and a pressure regulating valve. The electric air handling unit 21 is configured to independently control and adjust the unloading state and working state of the system.

[0050] In the embodiment of the present application, the air inlet end of the electronically controlled air processing unit 21 is connected to the above-mentioned flow limiting component 6 and the air outlet pipeline 3 by means of the connecting pipe 4 to connect to the high-pressure gas; the air outlet end of the electronically controlled air processing unit 21 is respectively connected to the front air cylinder 22 and the rear air cylinder 23, the front air cylinder 22 is dedicated to supplying the front axle braking system, and the rear air cylinder 23 supplies energy for the rear axle braking and auxiliary air equipment.

[0051] See also Figure 1 As shown, in some embodiments, the air supply circuit also includes a control module, the control module includes a monitoring unit and a control unit connected by signals, the monitoring unit is used to obtain vehicle operating parameters, and when the vehicle operating parameters meet the preset operating conditions, the control unit controls the air compressor module 1 and the air treatment module to perform deicing operations. In the embodiment of the present application, the vehicle operating parameters include vehicle speed parameters, ambient temperature parameters and system pressure parameters.

[0052] In some embodiments, the monitoring unit includes an atmospheric temperature sensor 55 for monitoring atmospheric temperature, a vehicle speed sensor (not shown) for monitoring vehicle speed, a front pressure sensor 51 for monitoring the internal air pressure of the front air tank 22 , and a rear pressure sensor 52 for monitoring the internal air pressure of the rear air tank 23 .

[0053] Among them, the atmospheric temperature sensor 55 generates a corresponding ambient temperature parameter signal after monitoring the temperature outside the vehicle, the vehicle speed sensor monitors the vehicle speed in real time to generate a vehicle speed parameter signal, and the front pressure sensor 51 and the rear pressure sensor 52 respectively monitor the pressure in the front and rear air cylinders 23 to comprehensively obtain the system pressure parameter signal.

[0054] The control unit includes an all-in-one controller 53 and a vehicle controller 54. The vehicle controller 54 is electrically connected to the front pressure sensor 51 and the rear pressure sensor 52 to monitor the system pressure status in real time and control the unloading, regeneration and working status of the electronically controlled air handling unit 21. At the same time, the vehicle controller 54 controls the air compressor module 1 with the help of the all-in-one controller 53 to control the start and shutdown of the air compressor.

[0055] When the vehicle is in a low-temperature operating environment, the vehicle controller 54 monitors the ambient temperature in real time through the atmospheric temperature sensor 55. When the ambient temperature reaches the threshold for starting the de-icing mode, the air outlet pipe 3 is de-iced. After each power-on, the de-icing action is performed at most once to save vehicle energy.

[0056] See also Figure 3 As shown, Figure 3 The structural principle diagram of the vehicle air compressor pipeline deicing device in another embodiment of the present application is shown. In some other embodiments, a high-pressure controller is integrated in the air compressor module 1, and a high-pressure conversion device is provided. The air processing module includes an integrated electronically controlled air processing unit 21 and a control unit, wherein the electronically controlled air processing unit 21 is specifically an electronically controlled air processing unit, and the electronically controlled air processing unit 21 can be connected to an external atmospheric temperature sensor 55 through a hard line, and autonomously control the start and stop of the air compressor module 1.

[0057] As shown in the above-mentioned embodiment, the electric air compressor pipeline deicing device independently controls the unloading state of the electronically controlled air handling unit 21 through the vehicle controller 54, thereby decoupling the system pressure and the control mode, and realizing the deicing mode of the system from the control strategy. In the deicing mode, the corresponding deicing time is set according to the judgment of the atmospheric temperature, thereby improving the overall control effect of the pipeline deicing device.

[0058] Combination Figure 4 As shown, Figure 2 A flow chart of a control method of a vehicle air compressor pipeline deicing device in an embodiment of the present application is shown. In some embodiments, the present application further provides a control method for controlling the vehicle air compressor pipeline deicing device as shown in any of the above embodiments, and the control method includes:

[0059] S1: Acquire vehicle operating condition parameters, where the vehicle operating condition parameters at least include ambient temperature parameters;

[0060] S2: When the vehicle operating parameters meet the preset operating conditions, the air compressor pipeline deicing operation is performed for a preset operating time, and the preset operating time is set according to the ambient temperature parameters.

[0061] In step S1: the atmospheric temperature sensor 55 monitors the atmospheric temperature to obtain the ambient temperature parameter signal, the vehicle speed sensor monitors the vehicle speed in real time to generate a vehicle speed parameter signal, the front pressure sensor 51 and the rear pressure sensor 52 respectively monitor the pressure in the front air cylinder 22 and the rear air cylinder 23 to comprehensively obtain the system pressure parameter signal.

[0062] In step S2: whether to enter the deicing mode is selected according to the actual vehicle operating parameters, and the corresponding deicing mode operation time is selected to ensure the timeliness and energy saving of the deicing operation. Among them, the execution of the air compressor pipeline deicing operation specifically refers to the air compressor module 1 performing continuous pumping operation to compress the air to generate high-temperature and high-pressure gas; the air treatment module continues to maintain the working mode to avoid unloading and causing the high-temperature and high-pressure gas to leak out quickly, affecting the deicing effect.

[0063] Specifically, setting the preset operating time according to the ambient temperature parameters in step S2 includes: when the ambient temperature parameters meet the cold working condition, setting the preset operating time to the first operating time; when the ambient temperature parameters meet the severe cold working condition, setting the preset operating time to the second operating time.

[0064] The temperature of the cold working condition is higher than the temperature of the severe cold working condition, and the first operating time is shorter than the second operating time, thereby saving unnecessary energy loss while ensuring the deicing effect.

[0065] In the embodiment of the present application, cold working conditions and severe cold working conditions are mainly defined by means of two temperature thresholds, wherein the temperature represented by the first threshold is higher than the second threshold. When the ambient temperature is between the first threshold and the second threshold, it is defined as a cold working condition, and the pipeline deicing device starts the deicing mode corresponding to the cold working condition; when the ambient temperature is lower than the second threshold, it is defined as a severe cold working condition, and the pipeline deicing device starts the deicing mode corresponding to the severe cold working condition.

[0066] For ease of description and labeling, Figure 4 Tatm represents the current actual temperature measured by the atmospheric temperature sensor 55, T1 represents the first threshold for entering the de-icing mode, and the corresponding continuous working time of the air compressor is Δt1, T2 is the second threshold for entering the de-icing mode, and the corresponding continuous working time of the air compressor is Δt2, and T1>T2, Δt1<Δt2.

[0067] Based on the structure and characteristics of the above-mentioned vehicle air compressor pipeline deicing device, after each power-on, the vehicle controller 54 monitors in real time whether the actual value Tatm of the atmospheric temperature sensor 55 is lower than the first threshold value T1. At the same time, the vehicle speed is greater than 0 km / h, preferably 15 km / h, and the pressure values ​​in the front air storage cylinder 22 and the rear air storage cylinder 23 are greater than the cut-in pressure of the air handling unit 10 bar. When the above conditions are met at the same time, the vehicle controller 54 performs the deicing action, so that the electronically controlled air handling unit 21 is in working state and the air compressor module 1 is in starting state.

[0068] At the same time, the vehicle controller 54 refers to the current atmospheric temperature to determine whether it exceeds the first threshold T1 for cold conditions and the second threshold T2 for severe cold conditions, and performs deicing actions for the duration of pumping air Δt1 and Δt2 for cold conditions and severe cold conditions, respectively. Each time the vehicle is powered on, the deicing action is performed at most once.

[0069] In some embodiments, the present application also provides a vehicle (not shown), specifically a new energy commercial vehicle, which includes a vehicle air compressor pipeline deicing device as shown in any of the above embodiments.

[0070] In summary, the present application provides a vehicle air compressor pipeline deicing device, a vehicle and a control method thereof, in response to the urgent need for ice removal function of the air compressor outlet pipeline 3 when new energy commercial vehicles operate in the cold and humid areas of northern winter. The device can effectively melt the accumulated ice in the air compressor outlet pipeline 3, and is easy to modify with little cost change, and has good feasibility and cost-effectiveness advantages.

[0071] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A vehicle air compressor pipeline deicing device, characterized in that: The pipeline deicing device comprises: An air supply circuit, comprising an air compressor module and an air processing module, wherein the air processing module is connected to an air outlet of the air compressor module through an air outlet pipeline; and A flow limiting member, comprising an air inlet and an air outlet arranged opposite to each other, wherein the air inlet is connected between the air outlet pipeline and the air processing module, and the air outlet is used to connect to the atmosphere and generate a working back pressure in the air supply circuit, wherein the working back pressure is less than or equal to the opening pressure of the flow limiting member; When the pressure in the air supply circuit reaches the opening pressure of the flow limiting component, the air inlet is connected to the air outlet; when the pressure in the air supply circuit is lower than the opening pressure of the flow limiting component, the air inlet is isolated from the air outlet.

2. The vehicle air compressor pipeline deicing device according to claim 1, characterized in that: The air processing module includes an electronically controlled air processing unit, a front air storage cylinder and a rear air storage cylinder. The air inlet end of the electronically controlled air processing unit is connected to the flow limiting component and the air outlet pipeline, and the air outlet end of the electronically controlled air processing unit is connected to the front air storage cylinder and the rear air storage cylinder respectively.

3. The vehicle air compressor pipeline deicing device according to claim 2, characterized in that: The opening pressure of the flow limiting component is greater than the unloading pressure of the electronically controlled air handling unit, and less than the opening pressure of the safety valve of the air compressor module.

4. The vehicle air compressor pipeline deicing device according to any one of claims 1 to 3, characterized in that: The flow limiting component includes at least any one of a relief valve, a pressure limiting valve and a safety valve.

5. The vehicle air compressor pipeline deicing device according to claim 1, characterized in that: The air supply circuit also includes a control module, which is used to obtain vehicle operating parameters and control the air compressor module and the air processing module to perform deicing operations when the vehicle operating parameters meet preset operating conditions.

6. The vehicle air compressor pipeline deicing device according to claim 5, characterized in that: The vehicle operating condition parameters include vehicle speed parameters, ambient temperature parameters and system pressure parameters.

7. A control method for controlling the vehicle air compressor pipeline deicing device according to any one of claims 1 to 6, characterized in that: The control method comprises: Acquiring vehicle operating condition parameters, wherein the vehicle operating condition parameters at least include an ambient temperature parameter; When the vehicle operating condition parameters meet the preset operating condition, the air compressor pipeline deicing operation is performed for a preset operating time, and the preset operating time is set according to the ambient temperature parameter.

8. The control method according to claim 7, characterized in that: The deicing operation of the air compressor pipeline includes: The air compressor module performs continuous pumping operation; The air handling module remains in operating mode.

9. The control method according to claim 7, characterized in that: The setting of the preset running time according to the ambient temperature parameter includes: When the ambient temperature parameter meets the cold working condition, setting the preset running time as the first running time; When the ambient temperature parameter meets the severe cold working condition, the preset operating time is set as the second operating time; The temperature of the cold working condition is higher than the temperature of the severe cold working condition, and the first operating time is shorter than the second operating time.

10. A vehicle, characterized in that: It comprises the vehicle air compressor pipeline deicing device as described in any one of claims 1-6.

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