Railway vehicle air conditioning control system, air conditioner and vehicle

Abstract

The present disclosure relates to a railway vehicle air conditioner control system, an air conditioner and a vehicle, wherein the system comprises: a drive protection circuit integrated at an air conditioner host for detecting three-phase alternating current voltage and current signals of the air conditioner host to realize a circuit protection function; a remote I / O circuit integrated at the air conditioner host for collecting I / O signals of the air conditioner host; an environmental parameter collection circuit for collecting environmental parameters of the vehicle; a main control circuit connected with the drive protection circuit, the remote I / O circuit and the environmental parameter collection circuit respectively for controlling the drive protection circuit to work and performing state diagnosis analysis of the air conditioner host based on the I / O signals and / or the environmental parameters.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to the technical field of railway vehicles, and in particular to a railway vehicle air-conditioning control system, an air conditioner including the railway vehicle air-conditioning control system, and a vehicle. Background Art

[0002] In existing railway vehicle air conditioning control systems, the control circuitry is completely separate from the main unit, installed in separate locations within the vehicle. This creates complex electrical connections between the two, leading to complex and costly vehicle electrical wiring and inconvenient maintenance. Furthermore, the current control circuitry primarily consists of the air conditioning controller and low-voltage electrical components such as relays, contactors, circuit breakers, and thermal relays. This results in a low degree of modularity, a large footprint, complex construction, inconvenient maintenance, and a short service life. Summary of the Invention

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the embodiments of the present disclosure provide a railway vehicle air-conditioning control system, an air conditioner including the railway vehicle air-conditioning control system, and a vehicle.

[0004] In a first aspect, an embodiment of the present disclosure provides a railway vehicle air conditioning control system, comprising:

[0005] A driving protection circuit is integrated and installed at the air conditioner host, and is used to detect the three-phase AC voltage and current signals of the air conditioner host to realize the circuit protection function;

[0006] A remote I / O circuit, integrated and installed at the air conditioner host, for collecting I / O signals of the air conditioner host;

[0007] Environmental parameter acquisition circuit, used for acquiring environmental parameters of the vehicle;

[0008] The main control circuit is connected to the drive protection circuit, the remote I / O circuit and the environmental parameter acquisition circuit respectively, and is used to control the operation of the drive protection circuit and perform status diagnosis and analysis of the air conditioning host based on the I / O signal and / or the environmental parameters.

[0009] Optionally, in one embodiment, the main control circuit includes a system control board and a human-computer interface; wherein, the system control board adopts a dual-CPU architecture, and the two CPUs are connected via a bus; and the human-computer interface is used to provide system human-computer interaction functions.

[0010] Optionally, in one embodiment, the driving protection circuit includes a control CPU and a driving circuit, and the driving circuit is a driving circuit based on a power semiconductor;

[0011] Among them, the control CPU is used to control the drive circuit to implement circuit protection functions based on the three-phase AC voltage and current signals, and the circuit protection functions include one or more of undervoltage, overcurrent, short circuit, three-phase imbalance and phase loss protection functions.

[0012] Optionally, in one embodiment, the method further includes:

[0013] Pressure wave control circuit, used to realize signal acquisition of pressure sensor on the vehicle;

[0014] The main control circuit is further configured to generate a control signal based on the pressure sensor signal;

[0015] The pressure wave control circuit is further configured to drive a corresponding execution device based on the control signal.

[0016] Optionally, in one embodiment, the drive protection circuit, the environmental parameter acquisition circuit and the pressure wave control circuit all have a communication function to communicate with the main control circuit.

[0017] Optionally, in one embodiment, the method further includes:

[0018] The first power protector is connected between the vehicle's power supply and the drive protection circuit, and is used to provide one or more of the power supply's overcurrent, short circuit and leakage protection functions. The power supply is used to provide the three-phase AC power required by the air conditioner host.

[0019] Optionally, in one embodiment, the method further includes:

[0020] The second power protector is connected to the main control circuit and is used to provide one or more of overcurrent and short-circuit protection functions for the vehicle's control power supply.

[0021] Optionally, in one embodiment, the environmental parameters include one or more of temperature, humidity, and carbon dioxide concentration;

[0022] The main control circuit is specifically used to perform status diagnosis and analysis of the air-conditioning host based on the I / O signal and the temperature, humidity, and carbon dioxide concentration, and to control and adjust the working status of the air-conditioning host according to the diagnosis and analysis results.

[0023] In a second aspect, an embodiment of the present disclosure provides an air conditioner, comprising the railway vehicle air conditioning control system described in any of the above embodiments.

[0024] In a third aspect, an embodiment of the present disclosure provides a vehicle comprising the air conditioner of the above embodiment.

[0025] The technical solution provided by the embodiments of the present disclosure has the following advantages over the prior art:

[0026] The present invention provides a railway vehicle air conditioning control system, air conditioner, and vehicle, wherein the driving protection circuit of the air conditioning control system is integrated and installed in the air conditioning main unit, and is used to detect the three-phase AC voltage and current signals of the air conditioning main unit to implement circuit protection functions; the remote I / O circuit is integrated and installed in the air conditioning main unit, and is used to collect the I / O signals of the air conditioning main unit; the environmental parameter acquisition circuit is used to collect the environmental parameters of the vehicle; the main control circuit is connected to the driving protection circuit, the remote I / O circuit, and the environmental parameter acquisition circuit, respectively, and is used to control the operation of the driving protection circuit and perform status diagnosis and analysis of the air conditioning main unit based on the I / O signals and / or the environmental parameters. In this way, in this embodiment, the driving protection circuit and the remote I / O circuit, which are strongly related to the electrical control of the air conditioning main unit, are integrated into the air conditioning main unit, realizing a distributed architecture of the control system, and modularizing the control system circuit, such that the main modules include the main control circuit module, the remote I / O circuit module, the environmental parameter acquisition circuit module, and the driving protection circuit module. Compared with the existing method of installing the entire control circuit completely in a different spatial location on the vehicle, the electrical wiring connection relationship between the two can be simplified, making the vehicle body electrical wiring construction simple, cost-effective, and easy to maintain. In addition, the drive protection circuit is used to replace the existing low-voltage electrical appliances such as relays, contactors, circuit breakers, thermal protection relays, etc., which reduces the occupied space, simplifies the construction, facilitates maintenance, and extends the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0028] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0029] Figure 1 This is a schematic diagram of a railway vehicle air conditioning control system according to an embodiment of the present disclosure;

[0030] Figure 2 This is a schematic diagram of the main control circuit in an embodiment of the present disclosure;

[0031] Figure 3 This is a schematic diagram of a driving protection circuit according to an embodiment of the present disclosure;

[0032] Figure 4 Schematic diagram of a railway vehicle air conditioning control system according to another embodiment of the present disclosure. DETAILED DESCRIPTION

[0033] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features therein can be combined with each other in the absence of conflict.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0035] It should be understood that, in the following text, "at least one (item)" refers to one or more, and "plurality" refers to two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0036] Figure 1 Schematic diagram of a railway vehicle air conditioning control system according to an embodiment of the present disclosure. The air conditioning control system may include a drive protection circuit 101, a remote I / O circuit 102, an environmental parameter acquisition circuit 103, and a main control circuit 104:

[0037] Among them, the drive protection circuit 101 is integrated and installed at the air-conditioning host 10, and is used to detect the three-phase AC voltage and current signals of the air-conditioning host 10 to realize the circuit protection function. The remote I / O circuit 102 is integrated and installed at the air-conditioning host 10, and is used to collect the I / O signals of the air-conditioning host 10, mainly realizing the system I / O signal collection function. The environmental parameter collection circuit 103 is used to collect environmental parameters of the vehicle such as temperature and other data. The main control circuit 104 is connected to the drive protection circuit 101, the remote I / O circuit 102 and the environmental parameter collection circuit 103 respectively, and is used to control the operation of the drive protection circuit 101, and perform status diagnosis and analysis of the air-conditioning host 10 based on the I / O signals and / or the environmental parameters.

[0038] In this embodiment, the drive protection circuit and remote I / O circuit that are strongly related to the electrical control of the air-conditioning host are integrated into the air-conditioning host, while the remaining circuits are kept away from the air-conditioning host, thereby realizing a distributed architecture of the control system. The control system circuit is modularized, such as the main modules include the main control circuit module, the remote I / O circuit module, the environmental parameter acquisition circuit module and the drive protection circuit module. Compared with the existing method of installing the entire control circuit and the air-conditioning host in different spatial locations of the vehicle, the electrical wiring connection relationship between the two can be simplified, making the vehicle body electrical wiring construction simple, reducing space occupation, cost-effective, and easy to maintain. Modularization makes installation flexible and convenient. In addition, the use of drive protection circuits to replace existing low-voltage electrical appliances such as relays, contactors, circuit breakers, and thermal protection relays further reduces the occupied space, simplifies construction, facilitates maintenance, reduces the use of traditional low-voltage electrical appliances, can extend the product life, and reduce the maintenance cost of the system throughout its life cycle. At the same time, intelligent diagnosis and analysis can be realized, enriching the functions of the air-conditioning control system, and meeting the requirements of vehicle intelligent design.

[0039] Optionally, in one embodiment, the main control circuit 104 includes a system control board and a human-machine interface (HMI). The system control board adopts a dual-CPU architecture, and the two CPUs are connected via a bus; the human-machine interface is used to provide system human-machine interaction functions.

[0040] For example, in one example, Figure 2 As shown in the figure, the main control circuit primarily consists of the system control board and the HMI. The system control board utilizes a dual-CPU design, comprising a control CPU and a management CPU. These two CPUs function independently, exchanging information via a bus. The control CPU primarily implements logic control and protection, while the management CPU handles communication management, file management, algorithm implementation, intelligent diagnosis, and system function management. The HMI primarily implements the system's human-machine interface, providing functions such as display, control buttons, parameter setting, logging, and fault query.

[0041] In this embodiment, the main control circuit adopts a dual CPU technology architecture. The control and management CPUs are independent of each other, and the computing power is enhanced, which effectively improves the intelligent diagnostic capability, facilitates intelligent operation and maintenance, and meets the vehicle intelligence requirements.

[0042] Optionally, in one embodiment, the drive protection circuit 101 includes a control CPU and a drive circuit, wherein the drive circuit is a power semiconductor-based drive circuit. The control CPU is configured to control the drive circuit to implement circuit protection functions based on the three-phase AC voltage and current signals, wherein the circuit protection functions include one or more of undervoltage, overcurrent, short circuit, three-phase imbalance, and phase loss protection functions.

[0043] For example, in one example, Figure 3 As shown in , the drive protection circuit 101 is one of the key core units of the system, mainly composed of two parts: the control CPU and the drive circuit. The control CPU mainly implements protection algorithms, communication management, logic control and protection. The drive protection circuit 101 has a three-phase AC voltage and current acquisition function, realizes overvoltage / undervoltage, overcurrent, short circuit, three-phase imbalance and phase loss protection functions, and can realize remote disconnection and closing control, dual-channel CAN communication and other functions. The drive circuit of the drive protection circuit 101 mainly realizes the combined functions of traditional low-voltage electrical appliances such as circuit breakers, contactors and thermal relays, and its control and protection are the responsibility of the control CPU.

[0044] like Figure 3 As shown in , the drive circuit may include a voltage transformer, a current transformer, and an A / D converter to achieve three-phase AC voltage and current acquisition. It may also include power semiconductors such as MOS tubes or bidirectional thyristor devices. The three-phase AC power provided by the power supply is input through the three-phase input interface and provided to the air conditioner host 10 by the three-phase output interface. At the same time, the drive circuit can collect the three-phase AC voltage and current signals and convert them into digital signals by the A / D converter before inputting them into the control CPU. The control CPU then controls the drive circuit such as the bidirectional thyristor device to implement circuit protection functions such as undervoltage, overcurrent, short circuit, three-phase imbalance or phase loss protection functions. For example, an isolation drive circuit can be set between the control CPU and the drive circuit such as the bidirectional thyristor device, and the voltage transformer and current transformer can have an isolation circuit to achieve the purpose of electrical protection. The specific implementation of these circuits can be understood with reference to the existing technology and will not be described in detail here.

[0045] In this embodiment, the drive protection circuit 101 is controlled by a CPU and uses power semiconductor technology. Traditional low-voltage electrical appliances such as circuit breakers, contactors, relays, and thermal relays are upgraded and replaced with drive protection circuits, which greatly reduces the use of traditional low-voltage electrical appliances, can increase product service life, and reduce system maintenance costs throughout the entire life cycle.

[0046] Optionally, in one embodiment, the air conditioning control system may further include a pressure wave control circuit for acquiring signals from a pressure sensor on the vehicle. The pressure sensor may be any one or more pressure sensors on the vehicle. The main control circuit 104 is further configured to generate a control signal based on the pressure sensor signal. The pressure wave control circuit is further configured to drive a corresponding execution device based on the control signal. Specifically, the pressure wave control circuit primarily acquires and processes pressure sensor signals and drives the execution device in real time, and may also have a communication function. This pressure wave control circuit may be selected based on actual needs, and in principle, it is required for vehicles with speeds exceeding 160 km / h.

[0047] Optionally, in one embodiment, the drive protection circuit 101, the environmental parameter acquisition circuit 103, and the pressure wave control circuit all have a communication function to communicate with the main control circuit 104. Exemplarily, the communication function may be CAN communication, such as a dual-channel CAN communication function, for example, by configuring a CAN communication module, but is not limited thereto.

[0048] Optionally, in one embodiment, Figure 4 As shown, the air-conditioning control system may also include a first power supply protector, namely a power supply protector, which is connected between the vehicle's power supply and the drive protection circuit 101, and is used to provide one or more of the power supply's overcurrent, short circuit and leakage protection functions. The power supply is used to provide the three-phase AC power required by the air-conditioning host 10.

[0049] For example, the power supply can be a vehicle bus power supply, such as a three-phase, three-wire AC 380V power supply. The vehicle bus power supply provides power to the air conditioning control system. The first power supply protector can generally be configured as a circuit breaker with a leakage function to implement overcurrent, short circuit, and leakage protection functions.

[0050] Optionally, in one embodiment, Figure 4 As shown, the air conditioning control system may further include a second power protector, namely a control power protector, connected to the main control circuit 104, for providing one or more of overcurrent and short-circuit protection functions for the vehicle's control power supply.

[0051] For example, the control power supply provides control power such as DC110V power supply for the air conditioning control system. The second power supply protector can generally be set as a DC circuit breaker to realize overcurrent and short circuit protection functions, and can also have remote disconnection and closing control functions.

[0052] The Train Control and Management System (TCMS) also provides the air conditioning control system with communication functions such as the Multi-Function Vehicle Bus (MVB), Real-Time Ethernet (TRDP), and some I / O control. The air conditioning control system's external interfaces are limited to control power, power supply, and communication interfaces. The main control circuit within the air conditioning control system is connected to other circuits only via communication lines, significantly reducing vehicle electrical wiring and cabling, lowering costs and facilitating maintenance.

[0053] Optionally, in one embodiment, the environmental parameters may include, but are not limited to, one or more of temperature, humidity, and carbon dioxide concentration. For example, the main control circuit 104 may be configured to perform a diagnostic analysis of the air conditioner host's status based on the I / O signal and the temperature, humidity, and carbon dioxide concentration, and control and adjust the operating status of the air conditioner host based on the diagnostic analysis results.

[0054] Related technologies typically collect only basic control I / O signals, such as temperature, pressure, and some voltage and current signals. This limited data collection limits both device diagnostics and system diagnostics. However, this embodiment adds humidity and carbon dioxide concentration monitoring, collecting richer and more diverse data. This improves the accuracy of diagnostic analysis results, enabling optimization of air conditioning control adjustments and enhancing air conditioning system comfort.

[0055] The present disclosure provides an air conditioner, including the railway vehicle air conditioning control system described in any of the above embodiments. For details about the railway vehicle air conditioning control system, please refer to the description of the above embodiments, which will not be repeated here.

[0056] In this embodiment, the drive protection circuit and remote I / O circuit that are strongly related to the electrical control of the air-conditioning host are integrated into the air-conditioning host, while the remaining circuits are kept away from the air-conditioning host, thereby realizing a distributed architecture of the control system. The control system circuit is modularized, such as the main modules include the main control circuit module, the remote I / O circuit module, the environmental parameter acquisition circuit module and the drive protection circuit module. Compared with the existing method of installing the entire control circuit and the air-conditioning host in different spatial locations of the vehicle, the electrical wiring connection relationship between the two can be simplified, making the vehicle body electrical wiring construction simple, reducing space occupation, cost-effective, and easy to maintain. Modularization makes installation flexible and convenient. In addition, the use of drive protection circuits to replace existing low-voltage electrical appliances such as relays, contactors, circuit breakers, and thermal protection relays further reduces the occupied space, simplifies construction, facilitates maintenance, reduces the use of traditional low-voltage electrical appliances, can extend the product life, and reduce the maintenance cost of the system throughout its life cycle. At the same time, intelligent diagnosis and analysis can be realized, enriching the functions of the air-conditioning control system, and meeting the requirements of vehicle intelligent design.

[0057] Furthermore, the embodiment of the present disclosure also provides a vehicle, including the air conditioner of the above embodiment. For example, the vehicle can be a railway train such as a high-speed train, or a subway train, etc., which is not limited in this embodiment.

[0058] In this embodiment, the drive protection circuit and remote I / O circuit that are strongly related to the electrical control of the air-conditioning host are integrated into the air-conditioning host, while the remaining circuits are kept away from the air-conditioning host, thereby realizing a distributed architecture of the control system. The control system circuit is modularized, such as the main modules include the main control circuit module, the remote I / O circuit module, the environmental parameter acquisition circuit module and the drive protection circuit module. Compared with the existing method of installing the entire control circuit and the air-conditioning host in different spatial locations of the vehicle, the electrical wiring connection relationship between the two can be simplified, making the vehicle body electrical wiring construction simple, reducing space occupation, cost-effective, and easy to maintain. Modularization makes installation flexible and convenient. In addition, the use of drive protection circuits to replace existing low-voltage electrical appliances such as relays, contactors, circuit breakers, and thermal protection relays further reduces the occupied space, simplifies construction, facilitates maintenance, reduces the use of traditional low-voltage electrical appliances, can extend the product life, and reduce the maintenance cost of the system throughout its life cycle. At the same time, intelligent diagnosis and analysis can be realized, enriching the functions of the air-conditioning control system, and meeting the requirements of vehicle intelligent design.

[0059] The solution of the disclosed embodiment can greatly reduce the vehicle wiring of the air-conditioning system, save the vehicle's plane layout space, modularize and miniaturize the components, and facilitate flexible and convenient installation, meeting the future vehicle "air traffic control" design requirements.

[0060] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0061] The foregoing description is intended only to provide specific embodiments of the present disclosure, intended to enable those skilled in the art to understand and implement the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is not intended to be limited to the embodiments described herein, but rather to be construed in the broadest manner consistent with the principles and novel features disclosed herein.

Claims

1. A railway vehicle air conditioning control system, characterized in that: include: A driving protection circuit is integrated and installed at the air conditioner host, and is used to detect the three-phase AC voltage and current signals of the air conditioner host to realize the circuit protection function; A remote I / O circuit, integrated and installed at the air conditioner host, for collecting I / O signals of the air conditioner host; Environmental parameter acquisition circuit, used for acquiring environmental parameters of the vehicle; a main control circuit, connected to the drive protection circuit, the remote I / O circuit, and the environmental parameter acquisition circuit, respectively, for controlling the operation of the drive protection circuit and performing status diagnosis and analysis of the air conditioner host based on the I / O signal and / or the environmental parameters; The main control circuit includes a system control board and a human-machine interface; wherein the system control board adopts a dual-CPU architecture, and the two CPUs are connected via a bus; the human-machine interface is used to provide a system human-machine interaction function; Wherein, the driving protection circuit includes a control CPU and a driving circuit, and the driving circuit is a driving circuit based on power semiconductors; Among them, the control CPU is used to control the drive circuit to implement circuit protection functions based on the three-phase AC voltage and current signals, and the circuit protection functions include one or more of undervoltage, overcurrent, short circuit, three-phase imbalance and phase loss protection functions.

2. The air conditioning control system according to claim 1, characterized in that: Also includes: Pressure wave control circuit, used to realize signal acquisition of pressure sensor on the vehicle; The main control circuit is further configured to generate a control signal based on the pressure sensor signal; The pressure wave control circuit is further configured to drive a corresponding execution device based on the control signal.

3. The air conditioning control system according to claim 2, characterized in that: The driving protection circuit, the environmental parameter acquisition circuit and the pressure wave control circuit all have a communication function to communicate with the main control circuit.

4. The air conditioning control system according to claim 2, characterized in that: Also includes: The first power protector is connected between the vehicle's power supply and the drive protection circuit, and is used to provide one or more of the power supply's overcurrent, short circuit and leakage protection functions. The power supply is used to provide the three-phase AC power required by the air conditioner host.

5. The air conditioning control system according to claim 2, characterized in that: Also includes: The second power protector is connected to the main control circuit and is used to provide one or more of overcurrent and short-circuit protection functions for the vehicle's control power supply.

6. The air conditioning control system according to claim 2, characterized in that: The environmental parameters include one or more of temperature, humidity, and carbon dioxide concentration; The main control circuit is specifically used to perform status diagnosis and analysis of the air-conditioning host based on the I / O signal and the temperature, humidity, and carbon dioxide concentration, and to control and adjust the working status of the air-conditioning host according to the diagnosis and analysis results.

7. An air conditioner, characterized in that: The invention comprises the railway vehicle air conditioning control system according to any one of claims 1 to 6.

8. A vehicle, characterized in that: Including the air conditioner according to claim 7.

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