Temperature control method and device for fuel cell locomotive

Abstract

The invention provides a temperature control method and device for a fuel cell locomotive, and relates to the technical field of locomotive temperature control. The method comprises the following steps: acquiring the outlet temperature of a fuel cell stack; if it is determined that the outlet temperature is smaller than or equal to the sum of a preset outlet temperature threshold value and a first preset value, the adjusting temperature of a locomotive adjusting system is obtained; if it is determined that the adjusting temperature is smaller than or equal to the temperature in front of a radiator, the outlet temperature is lowered through circulation of cooling liquid of a heat management subsystem and a locomotive adjusting system; wherein the numerical value of the radiator front temperature is equal to the outlet temperature. The device executes the method. According to the temperature control method and device of the fuel cell locomotive provided by the embodiment of the invention, the accuracy of temperature control of the fuel cell locomotive can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of locomotive temperature control, and in particular to a temperature control method and device for a fuel cell locomotive. Background Art

[0002] At present, fuel cell systems are mainly used in commercial vehicles. The thermal management subsystem and heating system of the vehicle are independent systems. Due to the limitations of the radiator, air conditioner and space size, the vehicle control system is highly complex and difficult to achieve global optimal control, resulting in excessive energy consumption and increased cost of use. Although optimizing the system design of comprehensive thermal management of the vehicle can improve energy efficiency, the current vehicle heat dissipation capacity is overly dependent on the radiator and water pump. Frequently increasing the high-load working time of the radiator, water pump and deionization tank will increase the maintenance cost of the radiator and deionization tank and reduce the service life of the water pump. The heat dissipation of the fuel cell will increase with the increase of the system power. For megawatt-class fuel cell locomotives, the heat dissipation of the fuel cell system will increase significantly, so the heat dissipation of the fuel cell system is crucial.

[0003] The locomotive fuel cell system module is composed of multiple fuel cell systems, each fuel cell system, such as Figure 1 The main components shown are the air path subsystem, the hydrogen path subsystem and the thermal management subsystem, namely, the air path subsystem includes the air path air intake module, the heat exchanger, the humidification module and the exhaust module; the hydrogen path subsystem includes the hydrogen path air intake module, the heat exchanger and the air intake and reflux module; the thermal management subsystem includes the deionization and thermal management module, the thermostat, the heater and the water pump. In the fuel cell locomotive, the flow path of the thermal management subsystem includes the flow path of the fuel cell stack of the fuel cell system itself. Summary of the invention

[0004] In view of the problems in the prior art, an embodiment of the present invention provides a temperature control method and device for a fuel cell locomotive, which can at least partially solve the problems in the prior art.

[0005] In one aspect, the present invention provides a temperature control method for a fuel cell locomotive, comprising:

[0006] Obtaining the outlet temperature of the fuel cell stack;

[0007] If it is determined that the outlet temperature is less than or equal to the sum of the preset outlet temperature threshold and the first preset value, obtaining the regulating temperature of the locomotive regulating system;

[0008] If it is determined that the adjustment temperature is less than or equal to the temperature before the radiator, the outlet temperature is reduced by circulating the coolant of the thermal management subsystem with the locomotive adjustment system;

[0009] The value of the temperature before the radiator is equal to the outlet temperature.

[0010] Wherein, the temperature control method of the fuel cell locomotive further includes:

[0011] If it is determined that the adjustment temperature is less than or equal to the temperature before the heat exchanger, cold air is input into the heat exchanger corresponding to the temperature before the heat exchanger to reduce the temperature of the heat exchanger;

[0012] The temperature before the heat exchanger is the temperature at the output end of the hydrogen path intake module and / or the air path intake module.

[0013] Wherein, the temperature control method of the fuel cell locomotive further includes:

[0014] If it is determined that the outlet temperature is greater than the sum of the preset outlet temperature threshold and the first preset value, obtaining the intake temperature of the locomotive intake system;

[0015] If it is determined that the intake air temperature is less than or equal to the vehicle ambient temperature, cold air is input into the heat exchanger to reduce the temperature of the heat exchanger;

[0016] The heat exchanger is a heat exchanger corresponding to the hydrogen path intake module and / or the air path intake module.

[0017] Wherein, the temperature control method of the fuel cell locomotive further includes:

[0018] If it is determined that the intake temperature is greater than the vehicle ambient temperature and less than or equal to the air intake temperature, air equal to the intake temperature is input into the inlet of the hydrogen line intake module and / or the air line intake module.

[0019] Wherein, the temperature control method of the fuel cell locomotive further includes:

[0020] If it is determined that the outlet temperature is less than or equal to the sum of the preset outlet temperature threshold and the second preset value, directly controlling the radiator and the water pump of the radiator module;

[0021] Wherein, the second preset value is smaller than the first preset value, and the heat sink is included in the deionization and thermal management module in the thermal management subsystem.

[0022] Wherein, the controlling of the radiator and the water pump of the radiator module includes:

[0023] If it is determined that the inlet temperature of the fuel cell stack is less than or equal to the sum of the preset inlet temperature threshold and the second preset value, the radiator and the water pump of the radiator module are controlled.

[0024] Wherein, the temperature control method of the fuel cell locomotive further includes:

[0025] If it is determined that the inlet temperature of the fuel cell stack is greater than the sum of the preset inlet temperature threshold and the second preset value, the water pump is controlled.

[0026] In one aspect, the present invention provides a temperature control device for a fuel cell locomotive, comprising:

[0027] An acquisition unit, used to acquire the outlet temperature of the fuel cell stack;

[0028] a determination unit, configured to obtain a regulating temperature of a locomotive regulating system if it is determined that the outlet temperature is less than or equal to the sum of a preset outlet temperature threshold and a first preset value;

[0029] A control unit, configured to reduce the outlet temperature by circulating the coolant of the thermal management subsystem with the locomotive regulating system if it is determined that the regulating temperature is less than or equal to the temperature before the radiator;

[0030] The value of the temperature before the radiator is equal to the outlet temperature.

[0031] In another aspect, an embodiment of the present invention provides an electronic device, including: a processor, a memory, and a bus, wherein:

[0032] The processor and the memory communicate with each other via the bus;

[0033] The memory stores program instructions that can be executed by the processor, and the processor calls the program instructions to execute the following method:

[0034] Obtaining the outlet temperature of the fuel cell stack;

[0035] If it is determined that the outlet temperature is less than or equal to the sum of the preset outlet temperature threshold and the first preset value, obtaining the regulating temperature of the locomotive regulating system;

[0036] If it is determined that the adjustment temperature is less than or equal to the temperature before the radiator, the outlet temperature is reduced by circulating the coolant of the thermal management subsystem with the locomotive adjustment system;

[0037] The value of the temperature before the radiator is equal to the outlet temperature.

[0038] An embodiment of the present invention provides a non-transitory computer-readable storage medium, including:

[0039] The non-transitory computer-readable storage medium stores computer instructions, which cause the computer to execute the following method:

[0040] Obtaining the outlet temperature of the fuel cell stack;

[0041] If it is determined that the outlet temperature is less than or equal to the sum of the preset outlet temperature threshold and the first preset value, obtaining the regulating temperature of the locomotive regulating system;

[0042] If it is determined that the adjustment temperature is less than or equal to the temperature before the radiator, the outlet temperature is reduced by circulating the coolant of the thermal management subsystem with the locomotive adjustment system;

[0043] The value of the temperature before the radiator is equal to the outlet temperature.

[0044] The temperature control method and device of a fuel cell locomotive provided in an embodiment of the present invention obtain the outlet temperature of a fuel cell stack; if it is determined that the outlet temperature is less than or equal to the sum of a preset outlet temperature threshold and a first preset value, the regulating temperature of the locomotive regulating system is obtained; if it is determined that the regulating temperature is less than or equal to the temperature before the radiator, the outlet temperature is reduced by circulating the coolant of the thermal management subsystem with the locomotive regulating system; wherein the value of the temperature before the radiator is equal to the outlet temperature, which can improve the accuracy of temperature control of the fuel cell locomotive. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0046] Figure 1 It is a schematic diagram illustrating the flow path of the thermal management subsystem in a fuel cell locomotive provided by the prior art.

[0047] Figure 2 It is a schematic diagram of the structure of the system provided by the embodiment of the present invention.

[0048] Figure 3 It is a flow chart of a temperature control method for a fuel cell locomotive provided in one embodiment of the present invention.

[0049] Figure 4 It is a flow chart of a temperature control method for a fuel cell locomotive provided in another embodiment of the present invention.

[0050] Figure 5 It is a schematic structural diagram of a temperature control device for a fuel cell locomotive provided in one embodiment of the present invention.

[0051] Figure 6 A schematic diagram of the physical structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention. It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other arbitrarily.

[0053] like Figure 2 As shown, the present invention Figure 1 On this basis, a thermal management subsystem and a locomotive adjustment system (mainly adjusting the locomotive ambient temperature) circulation route are added (corresponding to ①); the hydrogen subsystem and the air subsystem are added with a heat exchanger and a locomotive adjustment system cold air path that meets the indoor ambient temperature (corresponding to ③); at the same time, the air subsystem intake module is added with an adjustable path through the locomotive intake system and the locomotive adjustment system (corresponding to ② and ③).

[0054] like Figure 2 As shown, the three-way valve can be used to control whether the air passing through the locomotive air intake system enters the locomotive regulating system. If the three-way valve is closed, the air passing through the locomotive air intake system cannot enter the locomotive regulating system, corresponding to the above ③. If the three-way valve is opened, the air passing through the locomotive air intake system can enter the locomotive regulating system, corresponding to the above ② and ③.

[0055] Figure 3 FIG. 1 is a flow chart of a temperature control method for a fuel cell vehicle provided by an embodiment of the present invention. Figure 3 As shown, the temperature control method of a fuel cell locomotive provided by an embodiment of the present invention includes:

[0056] Step S1: Obtain the outlet temperature of the fuel cell stack.

[0057] Step S2: If it is determined that the outlet temperature is less than or equal to the sum of the preset outlet temperature threshold and the first preset value, the regulating temperature of the locomotive regulating system is obtained.

[0058] Step S3: if it is determined that the adjustment temperature is less than or equal to the temperature before the radiator, the outlet temperature is reduced by circulating the coolant of the thermal management subsystem and the locomotive adjustment system;

[0059] The value of the temperature before the radiator is equal to the outlet temperature.

[0060] In the above step S1, the device obtains the outlet temperature of the fuel cell stack. The device may be a computer device that executes the method, for example, it may include a server. It should be noted that the acquisition and analysis of data involved in the embodiment of the present invention is authorized by the user. Figure 1 As shown, the outlet temperature of the fuel cell stack is T2, and the inlet temperature of the fuel cell stack is T1.

[0061] In the above step S2, if the device determines that the outlet temperature is less than or equal to the sum of the preset outlet temperature threshold and the first preset value, the adjustment temperature of the locomotive adjustment system is obtained. The preset outlet temperature threshold can be set independently according to the actual situation, and the first preset value can also be set independently according to the actual situation, which can be selected as 5°C. Figure 2 As shown, the regulating temperature of the locomotive regulating system is T4.

[0062] In the above step S3, if the device determines that the adjustment temperature is less than or equal to the temperature before the radiator, the outlet temperature is reduced by circulating the coolant of the thermal management subsystem with the locomotive adjustment system;

[0063] Wherein, the value of the temperature before the radiator is equal to the outlet temperature. Figure 1 As shown, the heat sink is included in the deionization and thermal management module in the thermal management subsystem. The temperature before the heat sink can be understood as the temperature at the input end of the heat sink, and the temperature before the heat sink is approximately equal to the outlet temperature T2 in terms of value.

[0064] The temperature control method of the fuel cell locomotive also includes:

[0065] If it is determined that the adjustment temperature is less than or equal to the temperature before the heat exchanger, cold air is input into the heat exchanger corresponding to the temperature before the heat exchanger to reduce the temperature of the heat exchanger;

[0066] Wherein, the temperature before the heat exchanger is the temperature at the output end of the hydrogen inlet module and / or the air inlet module. Figure 1 As shown, if the adjustment temperature is less than or equal to the pre-heat exchanger temperature of the heat exchanger corresponding to the hydrogen gas line intake module, cold air is input into the heat exchanger corresponding to the hydrogen gas line intake module.

[0067] If the adjustment temperature is less than or equal to the pre-heat exchanger temperature of the heat exchanger corresponding to the air path intake module, cold air is input to the heat exchanger corresponding to the air path intake module.

[0068] If the adjusted temperature is less than or equal to the pre-heat exchanger temperature of the heat exchanger corresponding to the air path intake module, and is also less than or equal to the pre-heat exchanger temperature of the heat exchanger corresponding to the hydrogen path intake module, cold air will be input to the heat exchanger corresponding to the air path intake module, and the heat exchanger corresponding to the hydrogen path intake module.

[0069] The temperature control method of the fuel cell locomotive also includes:

[0070] If it is determined that the outlet temperature is greater than the sum of the preset outlet temperature threshold and the first preset value, the intake temperature of the locomotive intake system is obtained; Figure 2As shown, the intake air temperature is T3.

[0071] If it is determined that the intake air temperature is less than or equal to the vehicle ambient temperature, cold air is input into the heat exchanger to reduce the temperature of the heat exchanger;

[0072] The heat exchanger is a heat exchanger corresponding to the hydrogen gas inlet module and / or the air gas inlet module. The relevant description of the heat exchanger can be referred to above and will not be repeated here.

[0073] The temperature control method of the fuel cell locomotive also includes:

[0074] If it is determined that the intake temperature is greater than the vehicle ambient temperature and less than or equal to the air intake temperature, air equal to the intake temperature is input to the inlet of the hydrogen intake module and / or the air intake module. The inlet of the hydrogen intake module and / or the air intake module is the direction pointing to the hydrogen intake module and / or the air intake module ( Figure 1 not shown).

[0075] The temperature control method of the fuel cell locomotive also includes:

[0076] If it is determined that the outlet temperature is less than or equal to the sum of the preset outlet temperature threshold and the second preset value, the radiator and the water pump of the radiator module are directly controlled; the second preset value can be set independently according to actual conditions and can be selected as 2°C.

[0077] Wherein, the second preset value is smaller than the first preset value, and the heat sink is included in the deionization and thermal management module in the thermal management subsystem.

[0078] The controlling of the radiator and the water pump of the radiator module includes:

[0079] If it is determined that the inlet temperature of the fuel cell stack is less than or equal to the sum of the preset inlet temperature threshold and the second preset value, the radiator and the water pump of the radiator module are controlled. The preset inlet temperature threshold may be the same as or different from the preset outlet temperature threshold.

[0080] The temperature control method of the fuel cell locomotive also includes:

[0081] If it is determined that the inlet temperature of the fuel cell stack is greater than the sum of the preset inlet temperature threshold and the second preset value, the water pump is controlled.

[0082] like Figure 4 The specific instructions are as follows:

[0083] The design of the three subsystems basically maintains the existing fuel cell system design ideas: the temperature control range is completed by the coordinated operation of the thermostat, radiator module and water pump, and the temperature monitoring function is completed by the coordinated operation of the stack inlet temperature sensor T1 and the outlet temperature sensor T2 in the thermal management subsystem. However, the air path subsystem has added the connection route between the locomotive intake system, the adjustment system and the air path intake module, the coolant circulation design route between the locomotive adjustment system and the thermal management subsystem, and the heat exchange design route between the vehicle subsystem cold air and the fuel cell subsystem.

[0084] The temperature control method of the fuel cell locomotive in this embodiment is as follows: first, the required power of the locomotive is obtained according to the locomotive working condition and running status.

[0085] Combined with the power distribution of the locomotive controller, the fuel cell system power is obtained. If the fuel cell system power meets the requirements, the subsequent steps are executed, wherein the requirements can be determined according to actual needs.

[0086] The preset outlet temperature threshold (the preset outlet temperature threshold and the preset inlet temperature threshold are hereinafter referred to as "threshold") can be obtained by looking up the table according to the current power of the fuel cell system. When the outlet temperature T2 does not exceed the threshold +2°C, the radiator module radiator and water pump capacity can be increased to promote the inlet temperature T1 to meet the requirements (the inlet and outlet temperature difference is a constant value).

[0087] When the outlet temperature T2 does not exceed the threshold value of +5°C, the temperature T4 is adjusted to be less than or equal to the temperature before the radiator, and the outlet temperature T2 is reduced by circulating the coolant of the thermal management subsystem and the locomotive regulation system, such as Figure 1 As shown, the path to reduce the outlet temperature T2 is to pass through the heat exchanger, and the corresponding relationship between the heat exchanger and the hydrogen path intake module and / or the air path intake module will not be repeated.

[0088] If the temperature T4 is adjusted to be less than or equal to the temperature before the heat exchanger at this time, cold air is input into the heat exchanger and its temperature is reduced, thereby reducing the inlet temperature T1.

[0089] When T2 is greater than a threshold value of +5°C, and the intake air temperature T3 of the locomotive intake system is less than the locomotive ambient temperature, cold air is input to the heat exchanger and its temperature is reduced.

[0090] If the intake temperature T3 is between the locomotive ambient temperature and the air intake temperature, the air at this temperature can be selectively input to the inlet of the hydrogen and / or air circuit system, thereby reducing the parasitic power consumption of the expander caused by the high-temperature gas.

[0091] After the above control method is implemented, the water pump and radiator loads of the fuel cell system module are reduced and the inlet temperature T1 meets the requirements. If the inlet temperature T1 still exceeds the threshold range, the working capacity of the water pump and radiator needs to be increased according to the exceeding range.

[0092] If the inlet and outlet temperatures T1 still cannot meet the requirements, the output power of the fuel cell system module needs to be reduced. When the inlet and outlet temperatures meet the requirements and a higher power output of the fuel cell system module is required, the fuel cell system can be upgraded to meet the locomotive usage needs.

[0093] A temperature control method for a fuel cell locomotive provided in an embodiment of the present invention obtains the outlet temperature of a fuel cell stack; if it is determined that the outlet temperature is less than or equal to the sum of a preset outlet temperature threshold and a first preset value, the regulating temperature of a locomotive regulating system is obtained; if it is determined that the regulating temperature is less than or equal to the temperature before the radiator, the outlet temperature is reduced by circulating the coolant of a thermal management subsystem with the locomotive regulating system; wherein the value of the temperature before the radiator is equal to the outlet temperature, the accuracy of temperature control of the fuel cell locomotive can be improved.

[0094] Furthermore, the temperature control method of the fuel cell locomotive also includes:

[0095] If it is determined that the adjustment temperature is less than or equal to the temperature before the heat exchanger, cold air is input into the heat exchanger corresponding to the temperature before the heat exchanger to reduce the temperature of the heat exchanger; the above embodiment can be referred to for description and will not be repeated here.

[0096] The temperature before the heat exchanger is the temperature at the output end of the hydrogen inlet module and / or the air inlet module. Please refer to the above embodiments for details, which will not be described in detail.

[0097] Furthermore, the temperature control method of the fuel cell locomotive also includes:

[0098] If it is determined that the outlet temperature is greater than the sum of the preset outlet temperature threshold and the first preset value, the intake temperature of the locomotive intake system is obtained; the above-mentioned embodiment can be referred to for description and will not be repeated here.

[0099] If it is determined that the intake air temperature is less than or equal to the vehicle ambient temperature, cold air is input into the heat exchanger to reduce the temperature of the heat exchanger; the above description may be referred to and will not be repeated.

[0100] The heat exchanger is a heat exchanger corresponding to the hydrogen gas inlet module and / or the air gas inlet module. The above embodiments can be referred to for explanation and will not be described in detail.

[0101] Furthermore, the temperature control method of the fuel cell locomotive also includes:

[0102] If it is determined that the intake temperature is greater than the vehicle ambient temperature and less than or equal to the air intake temperature, air equal to the intake temperature is input to the inlet of the hydrogen intake module and / or the air intake module.

[0103] Furthermore, the temperature control method of the fuel cell locomotive also includes:

[0104] If it is determined that the outlet temperature is less than or equal to the sum of the preset outlet temperature threshold and the second preset value, the radiator and the water pump of the radiator module are directly controlled; the above embodiment can be referred to and will not be described in detail.

[0105] Wherein, the second preset value is smaller than the first preset value, and the heat sink is included in the deionization and thermal management module in the thermal management subsystem. The above-mentioned embodiment can be referred to for explanation, and no further description is given.

[0106] Furthermore, the controlling of the radiator and the water pump of the radiator module includes:

[0107] If it is determined that the inlet temperature of the fuel cell stack is less than or equal to the sum of the preset inlet temperature threshold and the second preset value, the radiator and the water pump of the radiator module are controlled. The above embodiments can be referred to for explanation and will not be described in detail.

[0108] Furthermore, the temperature control method of the fuel cell locomotive also includes:

[0109] If it is determined that the inlet temperature of the fuel cell stack is greater than the sum of the preset inlet temperature threshold and the second preset value, the water pump is controlled. The above description can be referred to and will not be repeated.

[0110] Figure 5 FIG. 1 is a schematic diagram of a temperature control device for a fuel cell vehicle according to an embodiment of the present invention. Figure 5 As shown, the temperature control device for a fuel cell locomotive provided by an embodiment of the present invention includes an acquisition unit 501, a determination unit 502 and a control unit 503, wherein:

[0111] The acquisition unit 501 is used to acquire the outlet temperature of the fuel cell stack; the determination unit 502 is used to acquire the regulating temperature of the locomotive regulating system if it is determined that the outlet temperature is less than or equal to the sum of a preset outlet temperature threshold and a first preset value; the control unit 503 is used to reduce the outlet temperature by circulating the coolant of the thermal management subsystem and the locomotive regulating system if it is determined that the regulating temperature is less than or equal to the temperature before the radiator; wherein the value of the temperature before the radiator is equal to the outlet temperature.

[0112] Specifically, the acquisition unit 501 in the device is used to obtain the outlet temperature of the fuel cell stack; the determination unit 502 is used to obtain the regulating temperature of the locomotive regulating system if it is determined that the outlet temperature is less than or equal to the sum of a preset outlet temperature threshold and a first preset value; the control unit 503 is used to reduce the outlet temperature by circulating the coolant of the thermal management subsystem and the locomotive regulating system if it is determined that the regulating temperature is less than or equal to the temperature before the radiator; wherein the value of the temperature before the radiator is equal to the outlet temperature.

[0113] The temperature control device of the fuel cell locomotive provided in the embodiment of the present invention obtains the outlet temperature of the fuel cell stack; if it is determined that the outlet temperature is less than or equal to the sum of a preset outlet temperature threshold and a first preset value, the regulating temperature of the locomotive regulating system is obtained; if it is determined that the regulating temperature is less than or equal to the temperature before the radiator, the outlet temperature is reduced by circulating the coolant of the thermal management subsystem and the locomotive regulating system; wherein the value of the temperature before the radiator is equal to the outlet temperature, which can improve the accuracy of temperature control of the fuel cell locomotive.

[0114] The temperature control device for a fuel cell vehicle provided in the embodiment of the present invention can be used to execute the processing flow of the above-mentioned method embodiments. Its functions will not be described in detail here, and reference can be made to the detailed description of the above-mentioned method embodiments.

[0115] Figure 6 A schematic diagram of the physical structure of an electronic device provided in an embodiment of the present invention, such as Figure 6 As shown, the electronic device includes: a processor (processor) 601, a memory (memory) 602 and a bus 603;

[0116] The processor 601 and the memory 602 communicate with each other via a bus 603;

[0117] The processor 601 is used to call the program instructions in the memory 602 to execute the methods provided by the above method embodiments, for example, including:

[0118] Obtaining the outlet temperature of the fuel cell stack;

[0119] If it is determined that the outlet temperature is less than or equal to the sum of the preset outlet temperature threshold and the first preset value, obtaining the regulating temperature of the locomotive regulating system;

[0120] If it is determined that the adjustment temperature is less than or equal to the temperature before the radiator, the outlet temperature is reduced by circulating the coolant of the thermal management subsystem with the locomotive adjustment system;

[0121] The value of the temperature before the radiator is equal to the outlet temperature.

[0122] This embodiment discloses a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium. The computer program includes program instructions. When the program instructions are executed by a computer, the computer can perform the methods provided by the above method embodiments, for example, including:

[0123] Obtaining the outlet temperature of the fuel cell stack;

[0124] If it is determined that the outlet temperature is less than or equal to the sum of the preset outlet temperature threshold and the first preset value, obtaining the regulating temperature of the locomotive regulating system;

[0125] If it is determined that the adjustment temperature is less than or equal to the temperature before the radiator, the outlet temperature is reduced by circulating the coolant of the thermal management subsystem with the locomotive adjustment system;

[0126] The value of the temperature before the radiator is equal to the outlet temperature.

[0127] This embodiment provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, wherein the computer program enables the computer to execute the methods provided by the above method embodiments, for example, including:

[0128] Obtaining the outlet temperature of the fuel cell stack;

[0129] If it is determined that the outlet temperature is less than or equal to the sum of the preset outlet temperature threshold and the first preset value, obtaining the regulating temperature of the locomotive regulating system;

[0130] If it is determined that the adjustment temperature is less than or equal to the temperature before the radiator, the outlet temperature is reduced by circulating the coolant of the thermal management subsystem with the locomotive adjustment system;

[0131] The value of the temperature before the radiator is equal to the outlet temperature.

[0132] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0133] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0134] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0135] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0136] In the description of this specification, the description with reference to the terms "one embodiment", "a specific embodiment", "some embodiments", "for example", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0137] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of 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 temperature control method for a fuel cell locomotive, characterized in that: include: Obtaining the outlet temperature of the fuel cell stack; If it is determined that the outlet temperature is less than or equal to the sum of the preset outlet temperature threshold and the first preset value, obtaining the regulating temperature of the locomotive regulating system; If it is determined that the adjustment temperature is less than or equal to the temperature before the radiator, the outlet temperature is reduced by circulating the coolant of the thermal management subsystem with the locomotive adjustment system; The value of the temperature before the radiator is equal to the outlet temperature.

2. The temperature control method of a fuel cell locomotive according to claim 1, characterized in that: The temperature control method of the fuel cell locomotive also includes: If it is determined that the adjustment temperature is less than or equal to the temperature before the heat exchanger, cold air is input into the heat exchanger corresponding to the temperature before the heat exchanger to reduce the temperature of the heat exchanger; The temperature before the heat exchanger is the temperature at the output end of the hydrogen path intake module and / or the air path intake module.

3. The temperature control method of a fuel cell locomotive according to claim 1, characterized in that: The temperature control method of the fuel cell locomotive also includes: If it is determined that the outlet temperature is greater than the sum of the preset outlet temperature threshold and the first preset value, obtaining the intake temperature of the locomotive intake system; If it is determined that the intake air temperature is less than or equal to the vehicle ambient temperature, cold air is input into the heat exchanger to reduce the temperature of the heat exchanger; The heat exchanger is a heat exchanger corresponding to the hydrogen path intake module and / or the air path intake module.

4. The temperature control method of a fuel cell locomotive according to claim 3, characterized in that: The temperature control method of the fuel cell locomotive also includes: If it is determined that the intake temperature is greater than the vehicle ambient temperature and less than or equal to the air intake temperature, air equal to the intake temperature is input into the inlet of the hydrogen line intake module and / or the air line intake module.

5. The temperature control method for a fuel cell locomotive according to any one of claims 1 to 4, characterized in that: The temperature control method of the fuel cell locomotive also includes: If it is determined that the outlet temperature is less than or equal to the sum of the preset outlet temperature threshold and the second preset value, directly controlling the radiator and the water pump of the radiator module; Wherein, the second preset value is smaller than the first preset value, and the heat sink is included in the deionization and thermal management module in the thermal management subsystem.

6. The temperature control method of a fuel cell locomotive according to claim 5, characterized in that: The controlling of the radiator and the water pump of the radiator module includes: If it is determined that the inlet temperature of the fuel cell stack is less than or equal to the sum of the preset inlet temperature threshold and the second preset value, the radiator and the water pump of the radiator module are controlled.

7. The temperature control method of a fuel cell locomotive according to claim 6, characterized in that: The temperature control method of the fuel cell locomotive also includes: If it is determined that the inlet temperature of the fuel cell stack is greater than the sum of the preset inlet temperature threshold and the second preset value, the water pump is controlled.

8. A temperature control device for a fuel cell locomotive, characterized in that: include: An acquisition unit, used to acquire the outlet temperature of the fuel cell stack; a determination unit, configured to obtain a regulating temperature of a locomotive regulating system if it is determined that the outlet temperature is less than or equal to the sum of a preset outlet temperature threshold and a first preset value; A control unit, configured to reduce the outlet temperature by circulating the coolant of the thermal management subsystem with the locomotive regulating system if it is determined that the regulating temperature is less than or equal to the temperature before the radiator; The value of the temperature before the radiator is equal to the outlet temperature.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

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

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