Control method and system for auxiliary equipment of rail transit vehicle

Abstract

The invention discloses a control method for auxiliary equipment of a rail transit vehicle, which comprises the following steps of: selecting a data set similar to current environmental parameters of a train from a historical database, and selecting a maximum value of a first temperature from the data set, and taking the speed regulation parameter of the cooling fan corresponding to the maximum value as the speed regulation parameter of the cooling fan in the current operation of the train. Due to the adoption of the technical scheme, compared with the prior art, a big data screening mode is adopted, the most energy-saving adjusting parameters are determined, the high-power operation duration is shortened as much as possible while the heat dissipation requirement and safe operation of the equipment are guaranteed, and therefore the energy consumption of fan type auxiliary equipment and a passenger room air conditioner is reduced. And secondly, the energy conservation of the power-adjustable auxiliary equipment can be realized without additionally arranging a frequency converter and additionally increasing the cost.

Description

Technical Field

[0001] The present invention relates to the field of rail transit technology, and in particular to a control method and system for rail transit vehicle auxiliary equipment. Background Art

[0002] To ensure normal train operation, rail transit vehicles such as EMUs, electric locomotives, and subway trains typically include various auxiliary equipment. Examples include air conditioning systems for maintaining temperature within the passenger compartment; fans for cooling traction equipment such as transformers, converters, and traction motors; and brake air compressors for providing air brake pressure. Besides traction system energy consumption, energy consumption from vehicle auxiliary equipment accounts for a significant portion of a train's total energy consumption. Therefore, reducing the energy consumption of these equipment is a crucial and significant means of energy conservation.

[0003] Train auxiliary equipment can be divided into two categories: auxiliary equipment with non-adjustable power and auxiliary equipment with adjustable power. Auxiliary equipment with non-adjustable power includes brake system air compressors, traction transformer oil pumps, etc. This type of equipment has only two states: working and stopped, and the power cannot be adjusted during operation. Various types of fans in the traction system have high-speed / low-speed working states, corresponding to different power and energy consumption. When the air-conditioning system is performing temperature control, there are full-cooling, half-cooling and other working modes (two compressors work in full-cooling mode, and one compressor works in half-cooling mode), and different working modes correspond to different powers. This type of auxiliary equipment is power-adjustable auxiliary equipment.

[0004] Currently, there are the following problems with power-adjustable auxiliary equipment:

[0005] (1) The control methods of various fans in the traction system are not energy-efficient. For example, the cooling fan of the traction transformer. The high / low speed control parameters of the fan are selected and designed according to the worst operating conditions and the most stringent environmental conditions. The temperature of the transformer is controlled to protect the safety of the equipment. Once the parameters are determined, they cannot be changed. When this method is used, it often occurs that when the ambient temperature is low in winter, the transformer temperature is also extremely low, and the heat dissipation is far greater than the heat generated by the equipment. This phenomenon indicates that the fan operates at high speed for too long, exceeding the heat dissipation requirements of the transformer. This indirectly causes energy waste.

[0006] (2) The passenger compartment air conditioning control method is not energy-efficient. For the fixed-frequency air conditioners currently used in rail transit vehicles, the mode is switched based on the difference between the real-time passenger compartment temperature and the target temperature. The difference parameter is selected based on the most stringent ambient temperature to ensure that the passenger compartment temperature fluctuates slightly to ensure passenger comfort. The parameters cannot be changed without modifying the air conditioning software. Under this control method, it is easy to cause the air conditioner to frequently start the full cooling mode with high energy consumption to ensure passenger comfort when the temperature is suitable, resulting in energy waste. Summary of the Invention

[0007] The present invention provides a control method and system for rail transit vehicle auxiliary equipment to solve the problem that the control methods of various cooling fans in the traction system of rail transit vehicles in the prior art are not energy-efficient and cause energy waste.

[0008] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions.

[0009] A method for controlling auxiliary equipment of a rail transit vehicle is provided, comprising the following steps:

[0010] Selecting a data set similar to the environmental parameters of the train at that time from a historical database, selecting the highest value of the first temperature from the data set, and using the cooling fan speed control parameter corresponding to the highest value as the cooling fan speed control parameter for the train at that time;

[0011] in,

[0012] The environmental parameters include the train's running section, date, running time and outside temperature;

[0013] The cooling fan speed adjustment parameters include multiple speed adjustment levels, and the higher the speed adjustment level, the higher the corresponding temperature threshold; when the temperature of the cooled device is not lower than the temperature threshold, the speed of the cooling fan increases;

[0014] The method for establishing the historical database includes:

[0015] Before the train runs, obtain the environmental parameters of the train and set the cooling fan speed parameters;

[0016] During the train operation, the temperature of the cooled equipment is continuously collected;

[0017] After the train runs, the highest temperature of the cooled equipment is set as the first temperature;

[0018] The environmental parameters, the first temperature and the cooling fan speed control parameters of the train operation at that time are used as the data set of the train operation at that time; the above steps are repeated to obtain a historical database consisting of multiple data sets.

[0019] It should be noted that being close to the environmental parameters of the train at that time means that the operating section and operating time are consistent; the date is not more than the set time, such as 5 days (can be set freely according to the situation); the outside temperature difference is not higher than the set temperature difference, such as 2°C (can be set freely according to the situation).

[0020] This method uses "big data" screening to determine the most energy-efficient adjustment parameters. This minimizes the duration of high-power operation while ensuring equipment cooling requirements and safe operation, thereby reducing the energy consumption of auxiliary equipment such as fans. This approach achieves energy savings for power-adjustable auxiliary equipment without the need for additional inverters or additional costs.

[0021] To further solve the problem that the conventional control method of rail transit vehicle passenger compartment air conditioning is not energy-efficient and causes energy waste, in some embodiments, the control method further includes:

[0022] Selecting the highest value of the first temperature fluctuation value from the data set, and using the passenger compartment air conditioning control parameter corresponding to the highest value as the passenger compartment air conditioning control parameter for the current train operation;

[0023] in,

[0024] The passenger compartment air conditioning control parameters include multiple control levels, and the higher the control level, the higher the corresponding temperature fluctuation threshold; when the passenger compartment temperature fluctuation value is not lower than the temperature fluctuation threshold, the cooling power of the passenger compartment air conditioning is increased;

[0025] The method for establishing the historical database includes:

[0026] Before the train runs, the passenger compartment air conditioning control parameters are also set;

[0027] During the train operation, the passenger compartment temperature fluctuation value is continuously collected; the passenger compartment temperature fluctuation value is the difference between the actual passenger compartment temperature and the target temperature;

[0028] After the train runs, the maximum value of the passenger compartment temperature fluctuation value is set as the first temperature fluctuation value;

[0029] The data set of the train operation at that time also includes the first temperature fluctuation value and the passenger compartment air conditioning control parameters.

[0030] In some embodiments, the means of increasing the cooling power of the passenger compartment air conditioner includes increasing the number of operations of the passenger compartment air conditioner compressor.

[0031] In some embodiments, the cooled equipment includes a converter, a transformer, and a traction motor; the cooling fans include a converter fan for cooling the converter, a transformer fan for cooling the transformer, and a traction motor fan for cooling the traction motor. It should be noted that the converter temperature refers to the converter water temperature, the transformer temperature refers to the transformer oil temperature, and the traction motor temperature refers to the temperature of the traction motor itself.

[0032] In some embodiments, a higher speed regulation level corresponds to a higher speed threshold; when the train speed is not higher than the speed threshold, or the temperature of the cooled equipment is not lower than the temperature threshold, the speed of the cooling fan is increased.

[0033] The present invention also provides a control system for rail transit vehicle auxiliary equipment, comprising a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of the above method.

[0034] The present invention also provides a computer-readable storage medium having a computer program / instruction stored thereon, which implements the steps of the above method when the computer program / instruction is executed by a processor.

[0035] The present invention also provides a computer program product, comprising a computer program / instruction, which implements the steps of the above method when executed by a processor.

[0036] This invention has at least the following technical effects or advantages: It uses "big data" screening to determine the most energy-efficient adjustment parameters, minimizing the duration of high-power operation while ensuring equipment heat dissipation and safe operation, thereby reducing energy consumption of auxiliary fan equipment and passenger air conditioning. Furthermore, this invention achieves energy savings for power-adjustable auxiliary equipment without the need for additional inverters or additional costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Schematic diagram of the flow of a method for controlling auxiliary equipment of a rail transit vehicle in Embodiment 1 of the present invention;

[0038] Figure 2 A schematic diagram of a process for establishing a historical database in the first embodiment of the present invention;

[0039] Figure 3 Schematic diagram of the flow of a control method for rail transit vehicle auxiliary equipment in the second embodiment of the present invention;

[0040] Figure 4 This is a flow chart of establishing a historical database in the second embodiment of the present invention. DETAILED DESCRIPTION

[0041] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0042] Example 1

[0043] See also Figure 1 A method for controlling an auxiliary device of a rail transit vehicle comprises the following steps:

[0044] S1. Before the train runs, obtain the environmental parameters of the train; the environmental parameters include the train's running section, date, running time and external temperature;

[0045] Specifically, the train's operating section, date, and time period are typically input or set by the driver and crew, stored by the train network system, and transmitted to the train's various sub-devices. The outside temperature is measured by a temperature sensor at the air conditioning system's fresh air inlet, and this temperature data is transmitted to the train network system. The train network system also stores and transmits this data to the train's various sub-devices.

[0046] S2. Select a data set with environmental parameters similar to those of the train from the historical database;

[0047] Specifically, this step uses the acquired train operating section, date, operating time, and outside temperature information to filter historical operating data samples and select qualified data samples. The filtering conditions are: consistent operating section; date within 5 days before or after the same date in previous years (specific settings are configurable); consistent operating time; and outside temperature difference of less than ±2°C (specific settings are configurable).

[0048] like Figure 2 As shown, the method for establishing the historical database in this step includes:

[0049] Before the train runs, obtain the environmental parameters of the train and set the cooling fan speed parameters;

[0050] During the train operation, the temperature of the cooled equipment is continuously collected;

[0051] After the train runs, the highest temperature of the cooled equipment is set as the first temperature;

[0052] The environmental parameters, the first temperature and the cooling fan speed control parameters of the train operation at that time are used as the data set of the train operation at that time; the above steps are repeated to obtain a historical database consisting of multiple data sets.

[0053] The cooled equipment includes a converter, a transformer and a traction motor. The cooling fans include a converter fan for cooling the converter, a transformer fan for cooling the transformer and a traction motor fan for cooling the traction motor.

[0054] Converter fan speed control dataset: (operating section, date, operating period, external temperature, converter fan speed control parameters, converter maximum water temperature); transformer fan speed control dataset: (operating section, date, operating period, external temperature, transformer fan speed control parameters, transformer maximum oil temperature); traction motor fan speed control dataset: (operating section, date, operating period, external temperature, traction motor fan speed control parameters, traction motor maximum temperature).

[0055] The cooling fan speed control parameters include multiple speed levels. Higher speed levels correspond to higher temperature thresholds. When the temperature of the cooled device is at least the temperature threshold, the cooling fan speed increases.

[0056] For example, the following three speed regulation levels can be set for the converter fan:

[0057] Inverter fan speed regulation level 1: If the inverter water temperature is ≥ water temperature threshold 1, the inverter fan switches from low speed to high speed.

[0058] Inverter fan speed regulation level 2: If the inverter water temperature is ≥ water temperature threshold 2, the inverter fan switches from low speed to high speed.

[0059] Inverter fan speed regulation level 3: When the inverter water temperature is ≥ water temperature threshold 3, the inverter fan switches from low speed to high speed.

[0060] Among them, water temperature threshold 1 < water temperature threshold 2 < water temperature threshold 3.

[0061] The following three speed adjustment levels can be set for the traction motor fan:

[0062] Traction motor fan speed regulation level 1: When the traction motor temperature is ≥ temperature threshold 1, the traction motor fan switches from low speed to high speed.

[0063] Traction motor fan speed regulation level 2: When the traction motor temperature is ≥ temperature threshold 2, the traction motor fan switches from low speed to high speed.

[0064] Traction motor fan speed regulation level 3: When the traction motor temperature is ≥ temperature threshold 3, the traction motor fan switches from low speed to high speed.

[0065] Among them, temperature threshold 1 < temperature threshold 2 < temperature threshold 3.

[0066] The following three speed adjustment levels can be set for the transformer fan:

[0067] Transformer fan speed regulation level 1: Transformer oil temperature ≥ oil temperature threshold 1, the transformer fan switches from low speed to high speed.

[0068] Transformer fan speed regulation level 2: Transformer oil temperature ≥ oil temperature threshold 2, the transformer fan switches from low speed to high speed.

[0069] Transformer fan speed regulation level 3: Transformer oil temperature ≥ oil temperature threshold 3, the transformer fan switches from low speed to high speed.

[0070] Among them, the oil temperature threshold value is less than the oil temperature threshold value 2 and less than the oil temperature threshold value 3.

[0071] S3. Select the highest value of the first temperature from the data set, and use the cooling fan speed control parameter corresponding to the highest value as the cooling fan speed control parameter for the current train operation.

[0072] The following are examples:

[0073] The train ran from station A to station B between 9:00 and 10:00 am on April 20th, with an outside temperature of 22°C. The speed control parameters for the transformer fan speed control dataset were determined as follows:

[0074] Filter out all data samples that run from site A to site B between 9:00 AM and 10:00 AM, between April 15th and 25th, and with an outside temperature of 22°C ± 2°C. Taking transformer oil temperature as an example, assume the data samples include the following:

[0075] Transformer fan speed regulation data set 1: (AB, April 21, 9:00-10:00, 23°C, transformer fan speed regulation level 2, transformer maximum oil temperature 50°C);

[0076] Transformer fan speed regulation data set 2: (AB, April 20, 9:00-10:00, 22°C, transformer fan speed regulation level 3, transformer maximum oil temperature 65°C);

[0077] Data comparison. Assume that the maximum allowable transformer oil temperature is 85°C. Since the difference between the maximum oil temperature and the maximum allowable oil temperature in Dataset 2 is smaller than that in Dataset 1, "Transformer fan speed level 3" in Dataset 2 is determined to be the transformer cooling fan speed parameter.

[0078] Preferably, the higher the speed regulation level, the higher the corresponding speed threshold; when the train speed is not higher than the speed threshold, or the temperature of the cooled equipment is not lower than the temperature threshold, the speed of the cooling fan is increased. Specifically:

[0079] The following three speed regulation levels can be set for the converter fan:

[0080] Inverter fan speed regulation level 1: When the train speed ≥ speed threshold 1 or the inverter water temperature ≥ water temperature threshold 1, the inverter fan switches from low speed to high speed.

[0081] Inverter fan speed regulation level 2: When the train speed ≥ speed threshold 2 or the inverter water temperature ≥ water temperature threshold 2, the inverter fan switches from low speed to high speed.

[0082] Inverter fan speed regulation level 3: When the train speed ≥ speed threshold 3 or the inverter water temperature ≥ water temperature threshold 3, the inverter fan switches from low speed to high speed.

[0083] Among them, speed threshold 1 < speed threshold 2 < speed threshold 3.

[0084] The following three speed adjustment levels can be set for the traction motor fan:

[0085] Traction motor fan speed regulation level 1: train speed ≥ speed threshold 1 or traction motor temperature ≥ temperature threshold 1, the traction motor fan switches from low speed to high speed.

[0086] Traction motor fan speed regulation level 2: train speed ≥ speed threshold 2 or traction motor temperature ≥ temperature threshold 2, the traction motor fan switches from low speed to high speed.

[0087] Traction motor fan speed regulation level 3: train speed ≥ speed threshold 31 or traction motor temperature ≥ temperature threshold 3, the traction motor fan switches from low speed to high speed.

[0088] The following three speed adjustment levels can be set for the transformer fan:

[0089] Transformer fan speed regulation level 1: Train speed ≥ speed threshold 1 or transformer oil temperature ≥ oil temperature threshold 1, the transformer fan switches from low speed to high speed.

[0090] Transformer fan speed regulation level 2: Train speed ≥ speed threshold 2 or transformer oil temperature ≥ oil temperature threshold 2, the transformer fan switches from low speed to high speed.

[0091] Transformer fan speed regulation level 3: Train speed ≥ speed threshold 3 or transformer oil temperature ≥ oil temperature threshold 3, the transformer fan switches from low speed to high speed.

[0092] Example 2

[0093] See also Figure 3 A method for controlling an auxiliary device of a rail transit vehicle comprises the following steps:

[0094] S21. Before the train runs, obtain the environmental parameters of the train; the environmental parameters include the running section, date, running time and external temperature of the train;

[0095] Specifically, the train's operating section, date, and time period are typically input or set by the driver and crew, stored by the train network system, and transmitted to the train's various sub-devices. The outside temperature is measured by a temperature sensor at the air conditioning system's fresh air inlet, and this temperature data is transmitted to the train network system. The train network system also stores and transmits this data to the train's various sub-devices.

[0096] S22, selecting a data set with environmental parameters similar to those of the train at that time from the historical database;

[0097] Specifically, this step uses the acquired train operating section, date, operating time, and outside temperature information to filter historical operating data samples and select qualified data samples. The filtering conditions are: consistent operating section; date within 5 days before or after the same date in previous years (specific settings are configurable); consistent operating time; and outside temperature difference of less than ±2°C (specific settings are configurable).

[0098] like Figure 4 As shown, the method for establishing the historical database in this step includes:

[0099] Before the train runs, obtain the train's environmental parameters and set the cooling fan speed control parameters and passenger compartment air conditioning control parameters;

[0100] During the train operation, the temperature of the cooling equipment and the passenger compartment temperature fluctuation value are continuously collected; the passenger compartment temperature fluctuation value is the difference between the actual passenger compartment temperature and the target temperature;

[0101] After the train operation ends, the maximum value of the temperature of the cooled equipment is set as the first temperature, and the maximum value of the passenger compartment temperature fluctuation value is set as the first temperature fluctuation;

[0102] The environmental parameters of the train during the current operation, the first temperature, the cooling fan speed control parameters, the first temperature fluctuation value, and the passenger compartment air conditioning control parameters are used as the data set of the train during the current operation;

[0103] Repeat the above steps to obtain a historical database consisting of multiple data sets.

[0104] The cooled equipment includes a converter, a transformer and a traction motor. The cooling fans include a converter fan for cooling the converter, a transformer fan for cooling the transformer and a traction motor fan for cooling the traction motor.

[0105] Converter fan speed control dataset: (operating section, date, operating period, outside temperature, converter fan speed control parameters, converter maximum water temperature); transformer fan speed control dataset: (operating section, date, operating period, outside temperature, converter fan speed control parameters, transformer maximum oil temperature); traction motor fan speed control dataset: (operating section, date, operating period, outside temperature, traction motor fan speed control parameters, traction motor maximum temperature); passenger compartment air conditioning control dataset:

[0106] (Operating section, date, operating time, outside temperature, passenger compartment air conditioning control parameters, maximum fluctuation value of passenger compartment temperature).

[0107] The cooling fan speed control parameters include multiple speed levels. Higher speed levels correspond to higher temperature thresholds. When the temperature of the cooled device is at least the temperature threshold, the cooling fan speed increases.

[0108] For example, the following three speed regulation levels can be set for the converter fan:

[0109] Inverter fan speed regulation level 1: If the inverter water temperature is ≥ water temperature threshold 1, the inverter fan switches from low speed to high speed.

[0110] Inverter fan speed regulation level 2: If the inverter water temperature is ≥ water temperature threshold 2, the inverter fan switches from low speed to high speed.

[0111] Inverter fan speed regulation level 3: When the inverter water temperature is ≥ water temperature threshold 3, the inverter fan switches from low speed to high speed.

[0112] Among them, water temperature threshold 1 < water temperature threshold 2 < water temperature threshold 3.

[0113] The following three speed adjustment levels can be set for the traction motor fan:

[0114] Traction motor fan speed regulation level 1: When the traction motor temperature is ≥ temperature threshold 1, the traction motor fan switches from low speed to high speed.

[0115] Traction motor fan speed regulation level 2: When the traction motor temperature is ≥ temperature threshold 2, the traction motor fan switches from low speed to high speed.

[0116] Traction motor fan speed regulation level 3: When the traction motor temperature is ≥ temperature threshold 3, the traction motor fan switches from low speed to high speed.

[0117] Among them, temperature threshold 1 < temperature threshold 2 < temperature threshold 3.

[0118] The following three speed adjustment levels can be set for the transformer fan:

[0119] Transformer fan speed regulation level 1: Transformer oil temperature ≥ oil temperature threshold 1, the transformer fan switches from low speed to high speed.

[0120] Transformer fan speed regulation level 2: Transformer oil temperature ≥ oil temperature threshold 2, the transformer fan switches from low speed to high speed.

[0121] Transformer fan speed regulation level 3: Transformer oil temperature ≥ oil temperature threshold 3, the transformer fan switches from low speed to high speed.

[0122] Among them, the oil temperature threshold value is less than the oil temperature threshold value 2 and less than the oil temperature threshold value 3.

[0123] The passenger compartment air conditioning control parameters include multiple control levels. The higher the control level, the higher the corresponding temperature fluctuation threshold. When the passenger compartment temperature fluctuation value is not lower than the temperature fluctuation threshold, the cooling power of the passenger compartment air conditioning is increased.

[0124] For example, the following three control levels can be set for the passenger room air conditioning:

[0125] Control level 1: When the passenger compartment temperature fluctuation value ≥ temperature fluctuation threshold 1, the system switches from semi-cooling to full cooling.

[0126] Control level 2: If the passenger compartment temperature fluctuation value ≥ temperature fluctuation threshold 2, the system switches from semi-cooling to full cooling.

[0127] Control level 3: If the passenger room temperature fluctuation value is ≥ temperature fluctuation threshold 3, the system switches from semi-cooling to full cooling.

[0128] Among them, the temperature fluctuation threshold 1 is less than the temperature fluctuation threshold 2 and is less than the temperature fluctuation threshold 3.

[0129] The higher the control level, the higher the threshold value for switching from semi-cooling to full-cooling (from switching from 1 compressor to 2 compressors), the shorter the time when the 2 compressors are enabled, and the more energy-saving it is.

[0130] S23. Select the highest value of the first temperature from the data set, and use the cooling fan speed control parameter corresponding to the highest value as the cooling fan speed control parameter for the train's current operation; select the highest value of the first temperature fluctuation value from the data set, and use the passenger compartment air-conditioning control parameter corresponding to the highest value as the passenger compartment air-conditioning control parameter for the train's current operation.

[0131] Preferably, the higher the speed regulation level, the higher the corresponding speed threshold; when the train speed is not higher than the speed threshold, or the temperature of the cooled equipment is not lower than the temperature threshold, the speed of the cooling fan is increased. Specifically:

[0132] The following three speed regulation levels can be set for the converter fan:

[0133] Inverter fan speed regulation level 1: When the train speed ≥ speed threshold 1 or the inverter water temperature ≥ water temperature threshold 1, the inverter fan switches from low speed to high speed.

[0134] Inverter fan speed regulation level 2: When the train speed ≥ speed threshold 2 or the inverter water temperature ≥ water temperature threshold 2, the inverter fan switches from low speed to high speed.

[0135] Inverter fan speed regulation level 3: When the train speed ≥ speed threshold 3 or the inverter water temperature ≥ water temperature threshold 3, the inverter fan switches from low speed to high speed.

[0136] Among them, speed threshold 1 < speed threshold 2 < speed threshold 3.

[0137] The following three speed adjustment levels can be set for the traction motor fan:

[0138] Traction motor fan speed regulation level 1: train speed ≥ speed threshold 1 or traction motor temperature ≥ temperature threshold 1, the traction motor fan switches from low speed to high speed.

[0139] Traction motor fan speed regulation level 2: train speed ≥ speed threshold 2 or traction motor temperature ≥ temperature threshold 2, the traction motor fan switches from low speed to high speed.

[0140] Traction motor fan speed regulation level 3: train speed ≥ speed threshold 31 or traction motor temperature ≥ temperature threshold 3, the traction motor fan switches from low speed to high speed.

[0141] The following three speed adjustment levels can be set for the transformer fan:

[0142] Transformer fan speed regulation level 1: Train speed ≥ speed threshold 1 or transformer oil temperature ≥ oil temperature threshold 1, the transformer fan switches from low speed to high speed.

[0143] Transformer fan speed regulation level 2: Train speed ≥ speed threshold 2 or transformer oil temperature ≥ oil temperature threshold 2, the transformer fan switches from low speed to high speed.

[0144] Transformer fan speed regulation level 3: Train speed ≥ speed threshold 3 or transformer oil temperature ≥ oil temperature threshold 3, the transformer fan switches from low speed to high speed.

[0145] Example 3

[0146] A control system for rail transit vehicle auxiliary equipment includes a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of the above method.

[0147] Example 4

[0148] A computer-readable storage medium stores a computer program / instruction thereon, which implements the steps of the above method when executed by a processor.

[0149] Example 5

[0150] A computer program product comprises a computer program / instruction, which implements the steps of the above method when executed by a processor.

[0151] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0152] Similarly, it should be understood that in order to streamline the present disclosure and aid understanding of one or more of the various inventive aspects, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed method should not be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the claims, inventive aspects lie in less than all the features of the individual embodiments disclosed above. Accordingly, the claims that follow the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of the invention.

[0153] Those skilled in the art will appreciate that the modules, units, or groups of devices in the examples disclosed herein may be arranged in the device described in the embodiment, or alternatively may be located in one or more devices different from the devices in the examples. The modules in the aforementioned examples may be combined into one module or further divided into multiple submodules.

[0154] It will be appreciated by those skilled in the art that the modules in the devices of the embodiments may be adaptively changed and arranged in one or more devices different from the embodiments. The modules or units or groups in the embodiments may be combined into one module or unit or group, and furthermore they may be divided into a plurality of submodules or subunits or subgroups. All features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device disclosed herein may be combined in any combination, except that at least some of such features and / or processes or units are mutually exclusive. Unless expressly stated otherwise, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature providing the same, equivalent or similar purpose.

[0155] Furthermore, those skilled in the art will appreciate that although some embodiments described herein include certain features and not other features included in other embodiments, the combination of features from different embodiments is intended to be within the scope of the invention and to form different embodiments.

[0156] In addition, some of the embodiments are described herein as methods or combinations of method elements that can be implemented by a processor of a computer system or by other devices that perform the functions described. Thus, a processor having the necessary instructions for implementing the method or method element forms a device for implementing the method or method element. Furthermore, the elements described herein of the device embodiments are examples of devices for implementing the functions performed by the elements for the purpose of implementing the invention.

[0157] The various techniques described herein may be implemented in conjunction with hardware or software, or a combination thereof. Thus, the methods and apparatus of the present invention, or certain aspects or portions of the methods and apparatus of the present invention, may take the form of program code (i.e., instructions) embedded in a tangible medium, such as a floppy disk, CD-ROM, hard drive, or any other machine-readable storage medium, wherein when the program is loaded into a machine such as a computer and executed by the machine, the machine becomes an apparatus for practicing the present invention.

[0158] When the program code is executed on a programmable computer, the computing device generally includes a processor, a storage medium readable by the processor (including volatile and non-volatile memory and / or storage elements), at least one input device, and at least one output device. The memory is configured to store the program code; the processor is configured to execute the method of the present invention according to the instructions in the program code stored in the memory.

[0159] By way of example and not limitation, computer-readable media include computer storage media and communication media. Computer-readable media include computer storage media and communication media. Computer storage media stores information such as computer-readable instructions, data structures, program modules, or other data. Communication media generally embodies computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and includes any information delivery media. Combinations of any of the above are also included within the scope of computer-readable media.

[0160] As used herein, unless otherwise specified, the use of ordinal numbers "first," "second," "third," etc. to describe common objects merely indicates that different instances of similar objects are involved and are not intended to imply that the objects so described must have a given order in time, space, ranking, or in any other manner.

[0161] Although the present invention has been described with respect to a limited number of embodiments, it will be apparent to those skilled in the art, having benefit of the foregoing description, that other embodiments are contemplated within the scope of the invention thus described. Furthermore, it should be noted that the language used in this specification has been selected primarily for readability and didactic purposes, rather than for the purpose of explaining or limiting the subject matter of the present invention. Consequently, many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the appended claims. The disclosure of the present invention is intended to be illustrative rather than restrictive of the scope of the invention, which is defined by the appended claims.

[0162] Finally, it should be noted that the present invention does not explain in detail the common knowledge recognized by technicians in this field. The above is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A control method for auxiliary equipment of a rail transit vehicle, characterized in that: The method comprises the following steps: Selecting a data set similar to the environmental parameters of the train at that time from a historical database, selecting the highest value of the first temperature from the data set, and using the cooling fan speed control parameter corresponding to the highest value as the cooling fan speed control parameter for the train at that time; in, The environmental parameters include the train's running section, date, running time and outside temperature; The cooling fan speed adjustment parameters include multiple speed adjustment levels, and the higher the speed adjustment level, the higher the corresponding temperature threshold; when the temperature of the cooled device is not lower than the temperature threshold, the speed of the cooling fan increases; The method for establishing the historical database includes: Before the train runs, obtain the environmental parameters of the train and set the cooling fan speed parameters; During the train operation, the temperature of the cooled equipment is continuously collected; After the train runs, the highest temperature of the cooled equipment is set as the first temperature; The environmental parameters, the first temperature and the cooling fan speed control parameters of the train operation at that time are used as the data set of the train operation at that time; Repeat the above steps to obtain a historical database consisting of multiple data sets.

2. The control method of rail transit vehicle auxiliary equipment according to claim 1, characterized in that: Also includes: Selecting the highest value of the first temperature fluctuation value from the data set, and using the passenger compartment air conditioning control parameter corresponding to the highest value as the passenger compartment air conditioning control parameter for the current train operation; in, The passenger compartment air conditioning control parameters include multiple control levels, and the higher the control level, the higher the corresponding temperature fluctuation threshold; when the passenger compartment temperature fluctuation value is not lower than the temperature fluctuation threshold, the cooling power of the passenger compartment air conditioning is increased; The method for establishing the historical database includes: Before the train runs, the passenger compartment air conditioning control parameters are also set; During the train operation, the passenger compartment temperature fluctuation value is continuously collected; the passenger compartment temperature fluctuation value is the difference between the actual passenger compartment temperature and the target temperature; After the train runs, the maximum value of the passenger compartment temperature fluctuation value is set as the first temperature fluctuation value; The data set of the train operation at that time also includes the first temperature fluctuation value and the passenger compartment air conditioning control parameters.

3. The control method for rail transit vehicle auxiliary equipment according to claim 2, characterized in that: Means for increasing the cooling power of the passenger compartment air conditioner include increasing the number of operating passenger compartment air conditioner compressors.

4. The control method for rail transit vehicle auxiliary equipment according to any one of claims 1 to 3, characterized in that: The cooled equipment includes a converter, a transformer and a traction motor; the cooling fans include a converter fan for cooling the converter, a transformer fan for cooling the transformer and a traction motor fan for cooling the traction motor.

5. The control method for rail transit vehicle auxiliary equipment according to any one of claims 1 to 3, characterized in that: The higher the speed regulation level, the higher the corresponding speed threshold; when the train speed is not higher than the speed threshold, or the temperature of the cooled equipment is not lower than the temperature threshold, the speed of the cooling fan is increased.

6. A control system for rail transit vehicle auxiliary equipment, comprising a memory, a processor, and a computer program stored in the memory, characterized in that: The processor executes the computer program to implement the steps of the method according to any one of claims 1 to 5.

7. A computer-readable storage medium having a computer program / instruction stored thereon, characterized in that: When the computer program / instruction is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.

8. A computer program product comprising a computer program / instructions, characterized in that When the computer program / instruction is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.

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