CN115056759A

CN115056759A - Air temperature control system and braking device and vehicle thereof

Info

Publication number: CN115056759A
Application number: CN202210771304.2A
Authority: CN
Inventors: 王鑫; 沈建世; 周志强; 吴迪; 汪俊; 涂隆堰; 阮荣刚; 温进俊
Original assignee: Dongfeng Huashen Motor Co Ltd
Current assignee: Dongfeng Huashen Motor Co Ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-09-16
Anticipated expiration: 2042-06-30
Also published as: CN115056759B

Abstract

The invention discloses an air temperature control system, a braking device thereof and a vehicle, wherein the air temperature control system comprises: the air compressor is used for outputting high-temperature and high-pressure gas during working; the high-temperature and high-pressure gas output by the air compressor passes through the cavity, a temperature sensor, a heating wire and an electric control water drain valve are arranged in the cavity, and the electric control water drain valve controls the cavity to be communicated with the atmosphere and be closed; the heating wire is electrified to heat the air in the cavity; the temperature sensor detects the ambient temperature in the cavity and outputs a corresponding electric signal according to the detected temperature value; and the controller controls the electric control water drain valve to be closed or opened and controls the heating time according to the corresponding electric signal output by the temperature sensor. The temperature control process realizes the control of the air temperature in the cavity, effectively avoids icing caused by over-low temperature, and reduces the possibility of brake failure.

Description

Air temperature control system and braking device and vehicle thereof

Technical Field

The invention relates to the technical field of automobiles, in particular to an air temperature control system, a braking device of the air temperature control system and a vehicle.

Background

At present, a braking system of a commercial vehicle adopts air pressure braking, and air source media are high-pressure air for the air pressure braking. The air compressor conveys the gas in the air to the dryer through the high temperature resistant metal tube after compressing, and the metal tube cools off compressed gas, and the dryer absorbs moisture and impurity in the cooling compressed gas, dries compressed gas for pipeline behind the dryer keeps the dryer normal atmospheric temperature state.

The new energy vehicle adopts the electric air compressor, and the working time of the air compressor is reduced and the energy consumption is saved through the accurate control of the electric air compressor. However, when the electric air compressor does not work, air in the high-temperature resistant metal pipe stands still, water vapor remains, and the water vapor condenses to block the steel pipe when the electric air compressor is in cold, so that the performance of a braking system is influenced. In order to solve the above problems, it is a common practice to use a high performance dryer, such as an imported molecular sieve to improve water absorption, and a molecular sieve back-flushing structure to improve the molecular sieve life. However, in these methods, the metal pipe between the air compressor and the dryer cannot be dried, and the phenomenon of icing the steel pipe cannot be avoided.

Disclosure of Invention

The invention mainly aims to provide an air temperature control system, a braking device thereof and a vehicle, which can effectively control the air temperature of a vehicle braking system, effectively avoid icing and reduce the possibility of braking failure.

In a first aspect, the present application provides an air temperature control system comprising:

the air compressor is used for outputting high-temperature and high-pressure gas during working;

the high-temperature and high-pressure gas output by the air compressor passes through the cavity, a temperature sensor, a heating wire and an electric control water drain valve are arranged in the cavity, and the electric control water drain valve controls the cavity to be communicated with the atmosphere and be closed; the heating wire is electrified to heat the air in the cavity; the temperature sensor detects the ambient temperature in the cavity and outputs a corresponding electric signal according to the detected temperature value;

and the controller controls the electric control water drain valve to be closed or opened and controls the heating time according to the corresponding electric signal output by the temperature sensor.

In a possible embodiment, the system further includes a timer, when the air compressor stops operating, the timer starts to time from the stop operating, the time duration is denoted by T, and the temperature sensor detects that the ambient temperature in the cavity is T', then:

when T' is more than or equal to 20 ℃, T is more than or equal to 60min, the controller controls the electric control water drain valve to open for 3s, and the timer is reset to zero and is timed again;

when the temperature is more than or equal to 5 ℃ and less than or equal to 20 ℃, T is more than or equal to 30min, the controller controls the electric control water drain valve to open for 3s, and the timer is reset to zero and counts again;

when T 'is less than 5 ℃, the controller controls the heating wire to be electrically heated, and when T' is more than 7 ℃, the controller controls the heating wire to stop working.

In a possible embodiment, when the air compressor works normally, the temperature sensor detects that the ambient temperature in the cavity is T;

when T is more than or equal to 5 ℃, the controller controls the heating wire not to work; when T is less than 5 ℃, the controller controls the heating wires to be electrically heated, and when T is more than 7 ℃, the controller controls the heating wires to stop heating.

In one possible embodiment, the cavity is provided with a gas inlet and a gas outlet, the gas enters the cavity from the gas inlet, and the gas flows out of the cavity from the gas outlet.

In one possible embodiment, the gas inlet and the gas outlet are provided at any position of the chamber.

In a possible embodiment, the cavity is a toroidal tube cavity, and the temperature sensor, the heating wire and the electrically controlled drain valve are placed at the lowest level of the toroidal tube cavity.

In a possible embodiment, a gas channel is provided between the gas inlet and the gas outlet, which gas channel extends from the gas inlet to the highest level point of the annular duct cavity, to the lowest level point of the annular duct cavity and finally to the gas outlet.

In one possible embodiment, the system further comprises a dryer, wherein the dryer receives the gas output by the cavity, dries the gas and outputs the gas to an air storage cylinder of a vehicle braking system.

In a second aspect, the present embodiment further provides a vehicle brake device, which includes the air temperature control system of any one of the first aspect.

In a third aspect, embodiments of the present application further provide a vehicle including the vehicle braking device according to the second aspect.

Above temperature control process realizes air temperature control in the cavity, avoids the air temperature too high to lead to the moisture in the unable desicator air of low reaches desicator, avoids air temperature to hang down excessively simultaneously and leads to the moisture in the cavity to condense and block up the cavity, gets rid of the moisture in the cavity simultaneously.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

FIG. 1 is a schematic view of an air temperature control system provided in an embodiment of the present application;

FIG. 2 is a schematic view of an air temperature control system provided in an embodiment of the present application;

FIG. 3 is a schematic view of a braking device provided in an embodiment of the present application;

FIG. 4 is a schematic illustration of a vehicle provided in an embodiment of the present application;

FIG. 5 is a schematic diagram of a controller provided in an embodiment of the present application;

fig. 6 is a schematic diagram of a computer-readable program medium provided in an embodiment of the present application.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.

Common new forms of energy motorcycle type, automatically controlled air compressor during operation, the atmosphere is compressed through air compressor, carries to the desicator through high temperature resistant tubular metal resonator, and the desicator carries out the drying to the air and forms high-pressure drying air to carry to the gas receiver and store. When the electric control dryer does not work, part of high-temperature compressed air is reserved in the high-temperature resistant metal pipe, and the part of air does not flow. With the lapse of time, the temperature of the metal pipe and the gas in the metal pipe is reduced to room temperature, and water vapor is separated out in the metal pipe in the cooling process and is accumulated to the lower part. If the part of water vapor is not condensed when the air compressor works again, the water vapor is brought to the dryer by the high-pressure high-temperature weather generated by the air compressor and is dried by the dryer. If when the air compressor works again, the water vapor is condensed and blocks the metal pipe after condensation, which can cause the gas circuit to be abnormal and even suppress the air compressor. Meanwhile, the water vapor remained in the pipeline for a long time can corrode the inside of the metal pipe, and the service life of the metal pipe is shortened. For the air brake commercial vehicle, the temperature of the air in front of the dryer can not be controlled, and the passive cooling is generally carried out by heat dissipation of a high-temperature resistant metal tube. When the external environment is lower than 0 ℃, the moisture in the air can be condensed to block the pipeline. The air compressor can be damaged due to pipeline blockage, and meanwhile, the braking system is lack of a high-pressure air source, so that the braking failure is caused, and the running safety is reduced.

The air temperature control system of this patent can control air temperature, avoids the temperature to hang down excessively to lead to freezing, stops to block up the pipeline phenomenon.

The invention uses a new air temperature control system to replace a high-temperature resistant metal pipe, and cools high-temperature gas by using a cooling system (a fan, a water tank and a cavity) of an engine, thereby ensuring the dryer effect of the dryer; the air is heated, anti-icing and water removal are carried out by using a circle structure integrated sensor, a heating wire, a water drain valve and the like of the cavity, so that the icing problem is solved.

Referring to fig. 1, fig. 1 shows an air temperature control system 10 provided by the present invention, which includes an air compressor 11, a chamber 12, and a controller 13, wherein:

and the air compressor 11 is used for outputting high-temperature and high-pressure gas during operation. High-temperature and high-pressure gas output by the air compressor 11 passes through the cavity 12, a temperature sensor 14, a heating wire 15 and an electric control water drain valve 16 are arranged in the cavity 11, and the electric control water drain valve 15 controls the cavity 12 to be communicated with the atmosphere and be closed. The heating wire 15 is powered on to heat the air in the cavity 12. The temperature sensor 13 detects the ambient temperature in the cavity 12 and outputs a corresponding electrical signal to the controller 13 according to the detected temperature value. And the controller 13 controls the electric control water drain valve 16 to be closed or opened according to the corresponding electric signal output by the temperature sensor 14, and controls whether the heating 14 is electrified or not so as to control the heating time.

In order to improve the accuracy of the control effect, the air temperature control system further includes a timer, when the air compressor 11 stops working, the timer starts to time from the stop working, the time duration is denoted as T, and if the temperature sensor detects that the ambient temperature in the cavity is T', the controller 13 adjusts the air temperature according to the following embodiments:

when the temperature is more than or equal to 5 ℃ and less than or equal to 20 ℃, T is more than or equal to 30min, the controller controls the electric control water drain valve to open for 3s, and the timer is reset to zero and is timed again;

when T 'is less than 5 ℃, the controller 13 controls the heating wire 15 to be electrically heated, and when T' is more than 7 ℃, the controller 13 controls the heating wire 15 to stop working.

When the air compressor 11 works normally, it is assumed that the temperature sensor 14 detects that the ambient temperature in the cavity 12 is T:

when T is more than or equal to 5 ℃, the controller 13 controls the heating wire not to work; when T is less than 5 ℃, the controller 13 controls the heating wire 15 to be electrically heated, and when T is more than 7 ℃, the controller 13 controls the heating wire 15 to stop heating.

The temperature interval and the time can be divided in other ways as required, for example, the external environment temperature is introduced as a control factor, the temperature T interval is divided in more detail, and the like.

As shown in fig. 2, the chamber 12 in the embodiment of the present invention may further have a gas inlet and a gas outlet, wherein the gas enters the chamber 12 through the gas inlet, and the gas exits the chamber 12 through the gas outlet. Preferably, the gas inlet and gas outlet are provided at any position on the outer wall of the chamber 12. Preferably, the chamber 12 is a toroidal duct chamber, and the temperature sensor 14, the heating wire 15 and the electrically controlled drain valve 16 are all placed at the lowest level of the toroidal duct chamber. The advantage of design like this is guaranteed to heat the evaporation in time with the moisture that the air condensation formed in the cavity, prevents to freeze. And a gas channel is arranged between the gas inlet and the gas outlet, extends from the gas inlet to the highest horizontal point of the annular pipeline cavity, then extends to the lowest horizontal point of the annular pipeline cavity, and finally extends to the gas outlet.

As shown in fig. 2, the air temperature control system further includes a dryer 17, and the dryer 17 receives the air output from the cavity 12, dries the air, and outputs the dried air to an air reservoir of a vehicle brake system.

In the invention, the cavity is an annular pipeline cavity, the inlet and the outlet are positioned at the middle height position of the pipeline cavity, so that air enters from the inlet and flows around the annular cavity, and the path is as follows: inlet → highest point of the pipe cavity → lowest point of the pipe cavity → outlet. The cavity at the lowest position of the pipeline cavity is larger than the cavities at other positions, and a temperature sensor, an electric heating wire and an electric control water drain valve are embedded in the cavity; other positions of the pipeline cavity are cylindrical pipelines with uniform drift diameters. The electric control water drain valve is a one-way valve controlled by an electric signal, so that high-pressure gas in a cavity communicated with the atmosphere at the lowest position flows to the atmosphere in a one-way mode, or the cavity at the lowest position is isolated from the atmosphere. The electric heating wire is controlled by an electric signal to heat the air. The temperature sensor detects the temperature of the lowest part of the cavity and transmits an electric signal to the controller.

The electric air compressor outputs high-temperature and high-pressure gas when working, and does not output when not working. The controller identifies and controls the working states of the electric control water drain valve and the electric heating wire according to a programmable program, and acquires the information of the temperature sensor. The controller is communicated with the electric air compressor to acquire the working state of the electric air compressor. Not less than

After the vehicle starts, the cooling system works, and the electric air compressor has two working states: and working and non-working.

When the electric air compressor works, the controller acquires that the state of the electric air compressor is a working state, identifies the working states of the electric control water drain valve and the electric heating wire, acquires a signal of the temperature sensor, and makes a judgment according to a programmable program. In a default state, the electric control water drain valve is closed (the cavity at the lowest part is isolated from the atmosphere), and the electric heating wire does not work. The high-pressure high-temperature air is subjected to temperature control by a cooling system, and mainly used for cooling and heat preservation. When the triggering condition A1 is met, the controller outputs a signal to control the electric control water drain valve to be closed (the cavity at the lowest position is isolated from the atmosphere), and the electric heating wire works. The high-pressure high-temperature air is subjected to temperature control, external environment cooling and electric heating wire heating through a cooling system, the temperature is controlled within a certain range, and the temperature is mainly increased and maintained.

When the electric control air compressor does not work, the controller acquires that the state of the electric air compressor is the non-working state, identifies the working states of the electric control water drain valve and the electric heating wire, acquires a signal of the temperature sensor, and makes judgment according to a programmable program. At the moment, partial high-pressure air is reserved in the annular cavity of the cavity, the partial high-pressure air does not flow in the cavity and is static, and moisture in the air is slowly separated out and is accumulated in the lowest cavity. Under the acquiescent state, the electric control water drain valve is closed (the cavity at the lowest position is isolated from the atmosphere), and the electric heating wire does not work. When the triggering condition B1 is met, the controller outputs a signal to control the electric control water drain valve to be opened (the cavity at the lowest position is communicated with the atmosphere), and the electric heating wire does not work. The high-pressure air flows to the outside atmosphere through the water drain valve and simultaneously carries the moisture gathered in the cavity at the lowest position to flow to the outside atmosphere together. When the trigger condition B2 is met, the controller outputs a signal to control the electric control water drain valve to be closed (the cavity at the lowest position is separated from the atmosphere), the cavity at the lowest position where the electric heating wire works is heated to melt partial condensed water, when the trigger condition B3 is further met, the controller controls the electric control water drain valve to be opened (the cavity at the lowest position is communicated with the atmosphere), and the high-pressure air carries the water gathered in the cavity at the lowest position and flows to the outside atmosphere through the water drain valve.

Air compressor, desicator have the individual function itself, divide into air compressor to desicator pipeline (high temperature resistant tubular metal resonator), desicator to gas receiver pipeline with the gas circuit, guarantee simultaneously that gaseous can only follow air compressor flow direction desicator, desicator flow direction gas receiver.

Optionally, factors that affect the writeable program include: the performance of the electric air compressor, the vehicle type using working condition, the vehicle type using environment, the whole vehicle energy consumption and the like. For example: the longer the time for opening the electric control water drain valve or the electric heating wire is, the better the temperature control and the water removal effect is, but the larger the energy consumption is. Meanwhile, in the environment where the vehicle type is located, the higher the humidity or the lower the temperature is, the longer the time for opening the electric control water drain valve or the electric heating wire is required.

When the air compressor works, the temperature sensor detects that the temperature is T.

When T is more than or equal to 5 ℃, the electric heating wire does not work.

When T is less than 5 ℃, the triggering condition is started, the electric heating wire works, and when T is more than 7 ℃, the electric heating wire stops working.

When the air compressor does not work, the air compressor starts to time T when the air compressor starts not to work, and the temperature sensor detects that the temperature is T. The electric heating wire is not operated by default.

When T is more than or equal to 20 ℃, T is more than or equal to 60min, starting a trigger condition, opening the electric control single-item valve, lasting for 3s, enabling T to return to zero, and timing again.

When T is more than or equal to 5 ℃ and less than 20 ℃, T is more than or equal to 30min, starting a trigger condition, opening the electric control single valve, lasting for 3s, enabling T to return to zero, and timing again.

When T is less than 5 ℃, starting a trigger condition, enabling the electric heating wire to work, and when T is more than 7 ℃, stopping the electric heating wire from working.

As shown in fig. 3, the present invention also provides a vehicle brake apparatus 20, the vehicle brake apparatus 20 including the air temperature control system 10 shown in fig. 1 and 2.

As shown in fig. 4, the present invention also provides a vehicle 30, the vehicle 300 including the vehicle brake device 20 shown in fig. 3.

In a common commercial vehicle, the air temperature control system is arranged at a fan and a water tank, the fan and the water tank cool the engine to keep the engine working normally, the temperature is controlled to be 65-95 ℃ generally, and therefore the temperature at the cavity is kept to be 65-95 ℃. Through the improvement of the cavity structure, the cavity is provided with a certain cavity and an inlet and an outlet, and the temperature of fluid can be adjusted by utilizing the process that the fluid flows into the cavity from the inlet and then flows out from the outlet. In the air brake system, high-pressure air is used as a braking energy source. The high-pressure high-temperature (more than 100 ℃) air generated by the air compressor compressing air can utilize the cavity body cavity to adjust the temperature. Meanwhile, the functions of gas temperature control, anti-icing, dewatering and the like are realized by embedding a sensor, a heating wire and a water drain valve in a circle structure of the cavity and integrating an external controller.

The electronic device 500 according to this embodiment of the present invention is described below with reference to fig. 5 for the controller 13. The electronic device 500 shown in fig. 5 is only an example and should not bring any limitation to the functions and the scope of use of the embodiments of the present invention.

As shown in fig. 5, the electronic device 500 is embodied in the form of a general purpose computing device. The components of the electronic device 500 may include, but are not limited to: the at least one processing unit 510, the at least one memory unit 520, and a bus 530 that couples various system components including the memory unit 520 and the processing unit 510.

Wherein the storage unit stores program code that is executable by the processing unit 510 to cause the processing unit 510 to perform steps according to various exemplary embodiments of the present invention as described in the section "example methods" above in this specification.

The storage unit 520 may include readable media in the form of volatile storage units, such as a random access memory unit (RAM)521 and/or a cache memory unit 522, and may further include a read only memory unit (ROM) 523.

The storage unit 520 may also include a program/utility 524 having a set (at least one) of program modules 525, such program modules 525 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which, or some combination thereof, may comprise an implementation of a network environment.

Bus 530 may be one or more of any of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

The electronic device 500 may also communicate with one or more external devices (e.g., keyboard, pointing device, bluetooth device, etc.), with one or more devices that enable a user to interact with the electronic device 500, and/or with any devices (e.g., router, modem, etc.) that enable the electronic device 500 to communicate with one or more other computing devices. Such communication may occur via input/output (I/O) interfaces 550. Also, the electronic device 500 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the internet) via the network adapter 560. As shown, the network adapter 560 communicates with the other modules of the electronic device 500 over the bus 530. It should be appreciated that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the electronic device 500, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.

Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which may be a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.

The present invention also provides a computer-readable storage medium having stored thereon a program product capable of implementing the above-described method of the present specification. In some possible embodiments, aspects of the invention may also be implemented in the form of a program product comprising program code means for causing a terminal device to carry out the steps according to various exemplary embodiments of the invention described in the above section "exemplary methods" of the present description, when said program product is run on the terminal device.

Referring to fig. 6, a program product 600 for implementing the above method according to an embodiment of the present invention is described, which may employ a portable compact disc read only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited in this regard and, in the present document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

A computer readable signal medium may include a propagated data signal with readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., through the internet using an internet service provider).

Furthermore, the above-described figures are merely schematic illustrations of processes involved in methods according to exemplary embodiments of the invention, and are not intended to be limiting. It will be readily understood that the processes shown in the above figures are not intended to indicate or limit the chronological order of the processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, e.g., in multiple modules.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

Claims

1. An air temperature control system, comprising:

2. The system of claim 1, further comprising a timer,

when the air compressor stops working, the timer starts timing from the stop working, the duration is recorded as T, the temperature sensor detects that the ambient temperature in the cavity is T', then:

3. The system of claim 1 or 2, wherein the temperature sensor detects an ambient temperature T in the cavity when the air compressor is operating normally;

when the temperature T is more than or equal to 5 ℃, the controller controls the heating wire not to work; when T is less than 5 ℃, the controller controls the heating wires to be electrically heated, and when T is more than 7 ℃, the controller controls the heating wires to stop heating.

4. The system of claim 1, wherein the chamber is provided with a gas inlet through which gas enters the chamber and a gas outlet through which gas exits the chamber.

5. The system of claim 4, wherein the gas inlet and gas outlet are disposed at any location on the chamber.

6. The system of claim 4, wherein the chamber is a toroidal tube chamber, and the temperature sensor, the heating wire and the electrically controlled water discharge valve are placed at the lowest level of the toroidal tube chamber.

7. The system of claim 6, wherein a gas passage is provided between the gas inlet and the gas outlet, the gas passage extending from the gas inlet to a highest level point of the annular duct cavity, to a lowest level point of the annular duct cavity, and finally to the gas outlet.

8. The system of claim 6, further comprising a dryer configured to receive the gas output from the chamber and dry the gas before outputting the gas to an air reservoir of a vehicle braking system.

9. A vehicle brake device characterized by comprising the air temperature control system according to any one of claims 1 to 8.

10. A vehicle characterized by comprising the vehicle brake device according to claim 9.