CN117039047A

CN117039047A - Radiator operation control method, fuel cell system, and readable storage medium

Info

Publication number: CN117039047A
Application number: CN202311121905.XA
Authority: CN
Inventors: 马富强; 高明春; 张传龙; 赵进奎; 张田鹏; 李宗吉; 贾宝娟; 马运先
Original assignee: Weichai Balade Hydrogen Technology Co ltd
Current assignee: Weichai Balade Hydrogen Technology Co ltd
Priority date: 2023-08-31
Filing date: 2023-08-31
Publication date: 2023-11-10

Abstract

The application provides a radiator operation control method, a fuel cell system and a readable storage medium, wherein the method comprises the following steps: acquiring initial operation parameters of the radiator fan, wherein the initial operation parameters at least comprise an initial duty ratio of the radiator fan and an initial wind direction of the radiator fan; acquiring environmental parameters of a radiator fan, wherein the environmental parameters represent environmental conditions in a space in which the radiator is positioned, and the environmental parameters at least comprise environmental wind direction and environmental precipitation; correcting the initial duty ratio of the radiator fan by adopting the environmental precipitation amount, determining the corrected duty ratio, and/or correcting the initial wind direction of the radiator fan by adopting the environmental wind direction, and determining the corrected wind direction; the radiator fan operation is controlled using a corrected duty cycle and/or corrected wind direction. According to the method, the temperature control precision of the radiator is greatly enhanced through controlling the environmental precipitation and the wind direction, the temperature of the water inlet of the fuel cell is more stable, the performance of the fuel cell is better released, and the energy consumption is reduced.

Description

Radiator operation control method, fuel cell system, and readable storage medium

Technical Field

The present application relates to the field of heat dissipation of fuel cells, and more particularly, to a control method of operation of a heat sink, a fuel cell system, and a computer-readable storage medium.

Background

In the fuel cell system, electricity is generated through electrochemical reaction in the electric pile, and the internal temperature of the electric pile is required to be kept within a certain range in order to ensure the maximum efficiency of the chemical reaction, but the conventional electric pile is greatly influenced by the environment, so that the temperature control performance of a radiator is poor, the water inlet temperature of the fuel cell is higher or lower, and the performance of the fuel cell is poor.

Disclosure of Invention

The application aims to provide a control method for operation of a radiator, a fuel cell system and a computer readable storage medium, which at least solve the problems of poor temperature control performance and high energy consumption caused by the fact that the existing galvanic pile radiator is easily influenced by environmental factors.

In order to achieve the above object, according to one aspect of the present application, there is provided a method of controlling operation of a radiator electrically connected to a fuel cell stack, the radiator including a radiator fan, the method comprising: acquiring initial operation parameters of the radiator fan, wherein the initial operation parameters at least comprise an initial duty ratio of the radiator fan and an initial wind direction of the radiator fan; acquiring environmental parameters of the radiator fan, wherein the environmental parameters represent environmental conditions in a space in which the radiator is positioned, and the environmental parameters at least comprise environmental wind direction and environmental precipitation; correcting the initial duty cycle of the radiator fan by adopting the environmental precipitation amount, determining the corrected duty cycle, and/or correcting the initial wind direction of the radiator fan by adopting the environmental wind direction, and determining the corrected wind direction; and controlling the radiator fan to operate by adopting the corrected duty cycle and/or the corrected wind direction.

Optionally, correcting the initial duty cycle of the radiator fan with the environmental precipitation, determining a corrected duty cycle, including: acquiring a first correction coefficient, wherein the first correction coefficient is the ratio of a first heat dissipation capacity to a second heat dissipation capacity, the first heat dissipation capacity is the heat dissipated by the environmental rainwater at the current moment, the second heat dissipation capacity is the heat dissipated by the cooling liquid of the radiator at the current moment, the first heat dissipation capacity is related to the environmental precipitation capacity at the current moment, and the environmental rainwater is the rainwater in the space where the radiator is located; acquiring a second correction coefficient, wherein the second correction coefficient is the ratio of a third heat dissipation capacity to a fourth heat dissipation capacity, the third heat dissipation capacity is the heat dissipated by the environmental rainwater at a target time, the fourth heat dissipation capacity is the heat dissipated by the radiator cooling liquid at the target time, the third heat dissipation capacity is related to the environmental precipitation capacity at the target time, and the current time is the time after the preset time passes through the target time; determining a correction difference value and/or a correction ratio according to a first correction coefficient and the second correction coefficient, wherein the correction difference value is the difference value between the first correction coefficient and the second correction coefficient, and the correction ratio is the ratio between the first correction coefficient and the second correction coefficient; and correcting the duty ratio of the radiator fan according to the correction difference value and/or the correction ratio, and determining the correction duty ratio.

Optionally, before acquiring the first correction coefficient, the method further includes: acquiring the volume of the cooling liquid of the radiator and the inlet temperature of the radiator in unit timeThe outlet temperature of the radiator, the specific heat capacity of the radiator coolant, and the density of the radiator coolant; constructing a first heat dissipation formula Q according to the volume of the radiator cooling liquid, the inlet temperature of the radiator, the outlet temperature of the radiator, the specific heat capacity of the radiator cooling liquid and the density of the radiator cooling liquid in unit time ₁ ＝c ₁ (ρ ₁ V ₁ )(T _in -T _out ) Wherein V is ₁ Is the volume of the cooling liquid of the radiator in unit time, T _in For the inlet temperature, T, of the radiator _out For the outlet temperature, c, of the radiator ₁ Specific heat capacity and ρ of the radiator coolant ₁ For the density, Q, of the radiator coolant ₁ Heat dissipated for the radiator coolant; and determining the heat dissipated by the radiator cooling liquid according to the first heat dissipation formula.

Optionally, before acquiring the first correction coefficient, the method further includes: acquiring the vaporization volume of the environmental rainwater, the vaporization temperature of the environmental rainwater, the environmental temperature, the specific heat capacity of the environmental rainwater and the density of the environmental rainwater in unit time; constructing a second heat dissipation formula Q according to the vaporization volume of the environmental rainwater, the vaporization temperature of the environmental rainwater, the environmental temperature, the specific heat capacity of the environmental rainwater and the density of the environmental rainwater in unit time ₂ ＝c ₂ (ρ ₂ V ₂ )(T _air -T ₀ ) Wherein V is ₂ Is the vaporization volume of the environmental rainwater in unit time, T _air For the vaporization temperature, T, of the ambient rain ₀ For the ambient temperature, c ₂ Specific heat capacity and ρ for the ambient rain water ₂ For the density, Q of the environmental rainwater ₂ Heat dissipated to the ambient rain; and determining the heat dissipated by the environmental rainwater according to the second heat dissipation formula.

Optionally, acquiring the vaporization volume of the ambient rain water per unit time includes: acquiring the heat dissipation area of the radiator fans, the number of the radiator fans in a working state and the environmental rainwater in unit timeVolume and vaporization ratio of the ambient rain water; according to the heat dissipation area of the radiator fans, the number of the radiator fans in a working state, the volume of the environmental rainwater in unit time and the vaporization proportion of the environmental rainwater, a vaporization volume formula V is constructed ₂ ＝X×S×n×k _α Wherein S is the heat radiation area of the radiator fan, n is the number of the radiator fans in a working state, X is the volume of the environmental rainwater in unit time, k _α For the vaporization proportion of the environmental rainwater, V ₂ A vaporization volume of the ambient stormwater per unit time; and determining the vaporization volume of the environmental rainwater in unit time according to the vaporization volume formula.

Optionally, correcting the initial wind direction of the radiator fan by using the ambient wind direction, and determining the corrected wind direction includes: and adjusting the wind direction of the radiator fan according to the ambient wind direction until the wind direction of the radiator fan is the same as the ambient wind direction or the wind direction of the radiator fan reaches a wind direction threshold value, and determining the adjusted wind direction of the radiator fan as the corrected wind direction.

Optionally, the method further comprises: an operating parameter of a fuel cell stack is obtained, the operating parameter of the fuel cell stack including at least one of: pile voltage, pile current, pile output power; and determining the total heat dissipation capacity of the fuel cell stack according to the operation parameters of the fuel cell stack, wherein the total heat dissipation capacity of the fuel cell stack is the sum of the heat dissipation capacity of the radiator fan, the heat dissipation capacity of the environmental rainwater and the heat dissipation capacity of the environmental wind speed.

According to another aspect of the present application, there is provided a fuel cell system including: a fuel cell stack having a water outlet and a water inlet; the radiator is provided with a water outlet and a water inlet, the water outlet of the radiator is connected with the water inlet of the fuel cell stack through a pipeline, the water inlet of the radiator is connected with the water outlet of the fuel cell stack through another pipeline, the radiator comprises a radiator fan, and the radiator is controlled to operate by any one of the radiator operation control methods.

Optionally, the heat sink further comprises: a temperature sensor for detecting at least one of: the temperature of the water outlet of the radiator, the temperature of the water inlet of the radiator, the ambient temperature and the three-hole velocimeter are used for detecting the ambient wind speed and/or the ambient wind direction; and the rainfall sensor is used for detecting the environmental precipitation.

According to another aspect of the present application, there is provided a computer readable storage medium including a stored program, wherein when the program is executed, the computer readable storage medium is controlled to execute any one of the control methods for the operation of the heat sink.

By applying the technical scheme of the application, the radiator is electrically connected with the fuel cell stack, and comprises a radiator fan, and the method comprises the steps of firstly acquiring initial operation parameters of the radiator fan, wherein the initial operation parameters at least comprise the initial duty ratio of the radiator fan and the initial wind direction of the radiator fan; then, acquiring environmental parameters of a radiator fan, wherein the environmental parameters represent environmental conditions in a space in which the radiator is positioned, and the environmental parameters at least comprise environmental wind direction and environmental precipitation; then correcting the initial duty ratio of the radiator fan by adopting the environmental precipitation amount, determining the corrected duty ratio, and/or correcting the initial wind direction of the radiator fan by adopting the environmental wind direction, and determining the corrected wind direction; and finally, controlling the radiator fan to run by adopting a corrected duty cycle and/or a corrected wind direction. According to the method, the temperature control precision of the radiator is greatly enhanced through controlling the environmental precipitation and the wind direction, the temperature of the water inlet of the fuel cell is more stable, the performance of the fuel cell is better released, and the energy consumption is reduced. The problem of current pile radiator easily receive environmental factor influence, lead to the temperature control performance poor, the energy consumption is high is solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

fig. 1 is a block diagram showing a hardware configuration of a mobile terminal for performing a control method of a radiator operation according to an embodiment of the present application;

fig. 2 is a schematic flow chart of a method for controlling operation of a radiator according to an embodiment of the present application;

fig. 3 shows a schematic configuration of a fuel cell system provided according to an embodiment of the present application;

fig. 4 shows a schematic structural diagram of a heat sink according to an embodiment of the present application;

FIG. 5 is a flow chart of another method for controlling operation of a heat sink according to an embodiment of the present application;

fig. 6 shows a block diagram of a control device for operation of a radiator according to an embodiment of the present application.

Wherein the above figures include the following reference numerals:

100. a fuel cell stack; 200. a heat sink; 1. a water outlet of the fuel cell stack; 2. a water inlet of the fuel cell stack; 3. a water inlet of the radiator; 4. a water outlet of the radiator; 5. a temperature sensor; 6. a three-hole velocimeter; 7. a rainfall sensor; 8. a radiator fan; 9. a control device for the operation of the radiator; 11. a driving motor; 12. a ball bearing; 13. a frame; 102. a processor; 104. a memory; 106. a transmission device; 108. and an input/output device.

Detailed Description

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the application herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

For convenience of description, the following will describe some terms or terminology involved in the embodiments of the present application:

electrochemical reaction: an oxidation-reduction reaction is carried out by an anode (H ₂ ) Electrons are released to the cathode (O) ₂ ) Electron transfer between them to effect conversion of chemical energy into electrical energy.

Single-phase heat dissipation: heat is carried away by a single phase (including air, liquid, etc.) flow.

As described in the background art, the existing electric pile is greatly affected by the environment, so that the temperature control performance of the radiator is poor, the water inlet temperature of the fuel cell is higher or lower, the performance of the fuel cell is poor, and the embodiment of the application provides a control method for the operation of the radiator, a fuel cell system and a computer readable storage medium for solving the problems of poor temperature control performance and high energy consumption caused by the fact that the existing electric pile radiator is easily affected by environmental factors.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

The method embodiments provided in the embodiments of the present application may be performed in a mobile terminal, a computer terminal or similar computing device. Taking the mobile terminal as an example, fig. 1 is a block diagram of a hardware structure of the mobile terminal according to a control method for operation of a heat sink according to an embodiment of the present application. As shown in fig. 1, a mobile terminal may include one or more (only one is shown in fig. 1) processors 102 (the processor 102 may include, but is not limited to, a microprocessor MCU or a processing device such as a programmable logic device FPGA) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 for communication functions and an input-output device 108. It will be appreciated by those skilled in the art that the structure shown in fig. 1 is merely illustrative and not limiting of the structure of the mobile terminal described above. For example, the mobile terminal may also include more or fewer components than shown in fig. 1, or have a different configuration than shown in fig. 1.

The memory 104 may be used to store a computer program, for example, a software program of application software and a module, such as a computer program corresponding to a control method of operation of a heat sink in an embodiment of the present invention, and the processor 102 executes the computer program stored in the memory 104, thereby performing various functional applications and data processing, that is, implementing the above-mentioned method. Memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory remotely located relative to the processor 102, which may be connected to the mobile terminal via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof. The transmission device 106 is used to receive or transmit data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, simply referred to as NIC) that can connect to other network devices through a base station to communicate with the internet. In one example, the transmission device 106 may be a Radio Frequency (RF) module, which is configured to communicate with the internet wirelessly.

In the present embodiment, a control method of the operation of a heat sink operating on a mobile terminal, a computer terminal or a similar computing device is provided, it should be noted that the steps illustrated in the flowchart of the drawings may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different from that herein.

Fig. 2 is a flowchart of a control method of the operation of the radiator according to an embodiment of the present application. As shown in fig. 2, a heat sink is electrically connected to the fuel cell stack, the heat sink including a heat sink fan, the method comprising the steps of:

step S201, obtaining initial operation parameters of the radiator fan, wherein the initial operation parameters at least comprise an initial duty ratio of the radiator fan and an initial wind direction of the radiator fan;

specifically, the duty cycle of the radiator fan is related to the wind speed of the radiator fan, and the meanings expressed by the two are the same, so that only one of the radiator fan is required to be acquired and adjusted.

In the fuel cell system, power is generated through electrochemical reaction inside the electric pile, in order to ensure the maximum efficiency of the chemical reaction, the temperature inside the electric pile is required to be kept within a certain range, and in the related art, the electric pile is cooled in a liquid cooling (deionized cooling liquid) mode, and heat brought by the cooling liquid is dissipated through a matched radiator. The radiator calculates the heat dissipation capacity required by cooling to the designated temperature by reading the water inlet temperature of the radiator, so as to regulate the rotating speed of the fan to reduce the temperature (power).

As shown in fig. 3, the temperature of the water outlet 1 of the fuel cell stack is the same as the temperature of the water inlet 3 of the radiator, and the temperature of the water inlet 2 of the fuel cell stack is the same as the temperature of the water outlet 4 of the radiator.

Before the initial operation parameters of the radiator fan are obtained, the method further comprises the following steps:

step S301, acquiring an operation parameter of a fuel cell stack, where the operation parameter of the fuel cell stack at least includes one of the following: pile voltage, pile current, pile output power;

step S302, determining the total heat dissipation capacity of the fuel cell stack according to the operation parameters of the fuel cell stack, wherein the total heat dissipation capacity of the fuel cell stack is the sum of the heat dissipation capacity of the radiator fan, the heat dissipation capacity of the environmental rainwater and the heat dissipation capacity of the environmental wind speed.

Specifically, the total heat dissipation capacity required by the fuel cell stack is calculated according to the operation parameters of the fuel cell stack, and the total heat dissipation capacity required by the fuel cell stack can be accurately controlled. In the process of operating the fuel cell stack, besides the fan and the cooling water of the fuel cell stack can cool and dissipate heat of the fuel cell stack, the ambient wind speed in the external environment can also affect the temperature of the fuel cell stack, namely, the ambient wind speed can cool and dissipate heat of the fuel cell stack to a certain extent, and in addition, under the condition of rainy weather, the rainwater can also take away part of heat of the fuel cell stack, namely, the ambient rainwater can cool and dissipate heat of the fuel cell stack to a certain extent. Therefore, the total heat dissipation capacity required by the fuel cell stack is calculated according to the operation parameters of the fuel cell stack such as the stack voltage, the stack current, the stack output power and the like, the heat dissipation capacity taken away by the environment wind speed is determined according to the wind quantity of the environment wind speed, the heat dissipation capacity taken away by the environment rainwater is determined according to the rainfall capacity of the rainwater, finally the heat dissipation capacity required to be born by the radiator fan can be obtained, and the operation parameters of the radiator fan can be obtained according to the heat required to be dissipated by the radiator fan.

Wherein the larger the voltage decay rate, the larger the heat dissipation capacity required for the fuel cell stack.

In addition, when the ambient wind speed obviously increases, the air flows faster, the heat dissipation capacity taken away by the air obviously increases, and the rotating speed of the fan can be properly reduced to keep the integral heat dissipation capacity unchanged; when the weather rains, the rainfall is increased, the heat dissipation capacity taken away by the rainwater is obviously increased, and the rotating speed of the fan can be properly reduced to keep the integral heat dissipation capacity unchanged.

Step S202, obtaining the environmental parameters of the radiator fan, wherein the environmental parameters represent the environmental conditions in the space where the radiator is positioned, and the environmental parameters at least comprise the environmental wind direction and the environmental precipitation;

specifically, the environmental parameters include, in addition to the environmental wind direction and the environmental precipitation, the environmental wind speed, and when the environmental wind speed is significantly increased, the air flow is faster, the heat dissipation capacity carried away by the air is significantly increased, and the fan rotation speed can be appropriately reduced to keep the overall heat dissipation capacity unchanged.

In addition, because the radiator uses air to dissipate heat in a single phase (i.e., takes away heat by flowing in a single phase (including air, liquid, etc.)), the program tuning is performed under a single environmental condition, i.e., the radiator parameters thus tuned are only specific to the single environmental condition and cannot take into account the influence of other environmental factors. In practical applications, the temperature of the fuel cell stack and the radiator may be affected by various factors, including weather, ambient temperature, driving state, vehicle speed, rainfall, wind speed, etc. Therefore, environmental factors such as wind direction, wind speed, rainfall and the like need to be considered, the temperature control performance of the radiator is poor under the condition that the factors are changed greatly, the water inlet temperature of the fuel cell is high or low, the performance of the fuel cell is poor, and the influence of the environmental factors on the heat radiation of the radiator is calculated, so that the operation parameters of the radiator can be correspondingly controlled, the temperature control performance of the radiator is improved, the water inlet temperature of the fuel cell is kept stable, and the performance of the fuel cell is improved.

As shown in fig. 3, a rain sensor 7 mounted on the radiator 200 is used to detect the amount of ambient rain, and a three-hole velocimeter 6 mounted on the radiator 200 is used to detect the ambient wind speed and the ambient wind direction.

The rainfall sensor obtains real-time rainfall at the moment according to the rainfall sensor, and because the rainwater passes through the surface of the radiator, the temperature of the rainwater is obviously lower than the hot air temperature of the radiator, and part of the rainwater absorbs heat and evaporates to take away heat. At the same fan speed, the phase change of rainwater is added to take away heat, and the total heat dissipation capacity of the radiator becomes larger. The wind speed is determined by two reasons, namely, the vehicle speed and the local natural wind. Firstly, the faster the vehicle speed is, the larger the corresponding headwind is, and the larger the wind speed is measured by the three-hole velocimeter. Simultaneously, the three-hole velocimeter can measure wind direction, and the angle of the radiator is adjusted to obtain the maximum ventilation air quantity. The larger the wind speed of the three-hole velocimeter is, the faster the ambient air around the radiator flows, the hot air generated by heat dissipation of the radiator can be taken away, and the heat dissipation capacity is also larger under the same rotating speed of the fan. The rain sensor and the three-hole velocimeter are added on the radiator, so that the environmental parameters such as wind direction, wind speed and rain can be detected, and the influence of the environmental parameters such as wind direction, wind speed and rain on heat dissipation is considered.

An environment temperature sensor, a rainfall sensor and a three-hole velocimeter are arranged above the radiator body, all sensor signal wire bundles are connected with a control device for the operation of the radiator or a whole vehicle controller (depending on whether the radiator has an autonomous controller or not), and the radiator controller adjusts the fan rotating speed according to various obtained signal calculation coefficients.

Step S203, correcting the initial duty ratio of the radiator fan by using the environmental precipitation amount, determining the corrected duty ratio, and/or correcting the initial wind direction of the radiator fan by using the environmental wind direction, and determining the corrected wind direction;

specifically, in practical application, the three-hole velocimeter installed on the radiator can also detect the ambient wind speed, and at this time, the duty ratio of the radiator fan can be adjusted according to two parameters of the ambient wind speed and the ambient precipitation amount so as to control the heat dissipation capacity of the radiator.

Wherein, before the first correction coefficient is obtained, the method further comprises the following steps:

step S401, obtaining the volume of the radiator cooling liquid, the inlet temperature of the radiator, the outlet temperature of the radiator, the specific heat capacity of the radiator cooling liquid and the density of the radiator cooling liquid in unit time;

Step S402, constructing a first heat dissipation formula Q according to the volume of the radiator cooling liquid, the inlet temperature of the radiator, the outlet temperature of the radiator, the specific heat capacity of the radiator cooling liquid and the density of the radiator cooling liquid in unit time ₁ ＝c ₁ (ρ ₁ V ₁ )(T _in -T _out ) Wherein V is ₁ Is the radiator in unit timeVolume of cooling liquid, T _in Is the inlet temperature T of the radiator _out For the outlet temperature, c, of the radiator ₁ Specific heat capacity ρ of the radiator coolant ₁ For the density, Q of the radiator cooling liquid ₁ Heat dissipated for the radiator cooling liquid;

step S403, determining heat dissipated by the radiator cooling liquid according to the first heat dissipation formula.

Specifically, according to the volume of the radiator cooling liquid, the inlet temperature of the radiator, the outlet temperature of the radiator, the specific heat capacity of the radiator cooling liquid, the density of the radiator cooling liquid and the first heat dissipation formula in unit time, the heat dissipated by the radiator cooling liquid under different working conditions can be calculated, and on the basis, the sum of the heat dissipated by environmental rainwater and the heat dissipated by the radiator fan can be calculated according to the total heat required by the fuel cell stack and the heat dissipated by the radiator cooling liquid.

step S501, obtaining the vaporization volume of the environmental rainwater, the vaporization temperature of the environmental rainwater, the environmental temperature, the specific heat capacity of the environmental rainwater and the density of the environmental rainwater in unit time;

step S502, constructing a second heat dissipation formula Q according to the vaporization volume of the environmental rainwater, the vaporization temperature of the environmental rainwater, the environmental temperature, the specific heat capacity of the environmental rainwater and the density of the environmental rainwater in unit time ₂ ＝c ₂ (ρ ₂ V ₂ )(T _air -T ₀ ) Wherein V is ₂ Is the vaporization volume T of the environmental rainwater in unit time _air Is the vaporization temperature T of the rainwater in the environment ₀ Is the above ambient temperature, c ₂ Specific heat capacity and ρ of the above-mentioned environmental rainwater ₂ For the density, Q of the above-mentioned environmental rainwater ₂ Heat dissipated for the environmental rainwater;

step S503, determining the heat dissipated by the environmental rainwater according to the second heat dissipation formula.

Specifically, according to the vaporization volume of the environmental rainwater, the vaporization temperature of the environmental rainwater, the environmental temperature, the specific heat capacity of the environmental rainwater, the density of the environmental rainwater and the second heat dissipation formula in unit time, the heat dissipated by the environmental rainwater under the condition of different rainfall can be calculated, and on the basis, the sum of the heat dissipated by the radiator cooling liquid and the heat dissipated by the radiator fan can be calculated according to the total heat required by the fuel cell stack and the heat dissipated by the environmental rainwater. And combining the heat dissipated by the radiator cooling liquid obtained in the steps S401-S403 to obtain the heat required to be dissipated by the radiator fan, thereby determining the operation parameters of the radiator fan. When the weather rains, the heat taken away by the rainwater through the radiator can be calculated according to the rainfall, and the heat required by the radiator fan is obtained by subtracting the heat required by the fuel cell. Meanwhile, the driving motor of the radiator can increase vaporization and heat dissipation of rainwater according to the wind direction adjusting angle.

The specific implementation steps for acquiring the vaporization volume of the environmental rainwater in unit time are as follows:

step S5011, obtaining the heat radiation area of the radiator fans, the number of the radiator fans in a working state, the volume of the environmental rainwater in unit time and the vaporization proportion of the environmental rainwater;

step S5012, constructing a vaporization volume formula V according to the heat dissipation area of the radiator fans, the number of the radiator fans in the working state, the volume of the environmental rainwater in unit time and the vaporization proportion of the environmental rainwater ₂ ＝X×S×n×k _α Wherein S is the heat radiation area of the radiator fan, n is the number of the radiator fans in the working state, X is the volume of the environmental rainwater in unit time, k _α The vaporization proportion of the rainwater in the environment is V ₂ The vaporization volume of the environmental rainwater in unit time;

and S5013, determining the vaporization volume of the environmental rainwater in unit time according to the vaporization volume formula.

Specifically, by the heat dissipation area of the radiator fans, the number of the radiator fans in a working state, the volume of the environmental rainwater in unit time, the vaporization proportion of the environmental rainwater and a vaporization volume formula, the vaporization volume of the environmental rainwater in unit time can be calculated, so that the heat dissipation capacity of the environmental rainwater can be obtained, and the radiator fans can be controlled. Wherein, under rainy weather, the rainfall falls on radiator fan surface, and partial rainwater is because the high heat air vaporization that the radiator brought, and the heat that the rainwater was taken away divide into two parts: 1. heat taken away by rainwater conduction; 2. the rainwater vaporizes the heat taken away. Rainfall per unit time. Because the heat carried away by the rainwater is very little and can be ignored, only the heat carried away by the rainwater in vaporization needs to be considered. The heat dissipation area of the radiator fan is the area projected to the radiator core body by the fan, and the radiator core body comprises an air duct and a water channel.

The initial duty ratio of the radiator fan is corrected by adopting the environmental precipitation amount, and the specific implementation steps for determining the corrected duty ratio are as follows:

step S601, obtaining a first correction coefficient, wherein the first correction coefficient is a ratio of a first heat dissipation capacity to a second heat dissipation capacity, the first heat dissipation capacity is heat dissipated by environmental rainwater at the current moment, the second heat dissipation capacity is heat dissipated by radiator cooling liquid at the current moment, the first heat dissipation capacity is related to the environmental precipitation capacity at the current moment, and the environmental rainwater is rainwater in a space where the radiator is located;

step S602, obtaining a second correction coefficient, wherein the second correction coefficient is a ratio of a third heat dissipation amount to a fourth heat dissipation amount, the third heat dissipation amount is heat dissipated by the environmental rainwater at a target time, the fourth heat dissipation amount is heat dissipated by the radiator cooling liquid at the target time, the third heat dissipation amount is related to the environmental precipitation amount at the target time, and the current time is a time after the preset time passes through the target time;

step S603, determining a correction difference value and/or a correction ratio according to a first correction coefficient and the second correction coefficient, wherein the correction difference value is the difference value between the first correction coefficient and the second correction coefficient, and the correction ratio is the ratio between the first correction coefficient and the second correction coefficient;

Step S604, correcting the duty ratio of the radiator fan according to the correction difference value and/or the correction ratio, and determining the correction duty ratio.

In particular, this allows a more accurate adjustment of the duty cycle of the radiator fan. The duty ratio of the radiator fan may be adjusted according to a ratio of the correction difference to the first correction coefficient, so that the ratio of the duty ratio difference to the adjusted duty ratio of the radiator fan is the same as the ratio of the correction difference to the first correction coefficient, wherein the duty ratio difference is a difference between the adjusted duty ratio of the radiator fan and the duty ratio of the radiator fan before adjustment. In addition, the duty ratio of the radiator fan can be adjusted according to the correction ratio, so that the ratio of the duty ratio of the radiator fan after adjustment to the duty ratio of the radiator fan before adjustment is the same as the correction ratio.

The method comprises the following specific implementation steps of correcting the initial wind direction of the radiator fan by adopting the ambient wind direction, and determining the corrected wind direction:

step S701, adjusting the wind direction of the radiator fan according to the ambient wind direction until the wind direction of the radiator fan is the same as the ambient wind direction or the wind direction of the radiator fan reaches a wind direction threshold value, and determining the adjusted wind direction of the radiator fan as the corrected wind direction.

Specifically, the wind direction of the radiator fan can be adjusted to be the same as the ambient wind direction as much as possible, so that the influence of the ambient wind direction on the heat dissipation capacity of the radiator fan can be reduced to the greatest extent. The wind direction threshold of the radiator fan is + -30 DEG of the initial wind direction. When the ambient wind direction is the same as the wind direction of the radiator fan, the air quantity passing through the radiator core is maximum, and the larger the air quantity, the better the heat dissipation, wherein the air quantity is equal to the wind speed multiplied by the time.

In addition, the ambient wind direction is the wind direction with the highest occurrence frequency in the preset time period. For example: and 8 times of southwest wind appears in the first 15 minutes at the current moment, and 6 times of northwest wind appears, the wind direction of the radiator fan is adjusted to the northwest wind direction.

As shown in fig. 3 and 4, the driving motor 11 on the radiator 200 drives the ball bearing 12 to move, and adjusts the wind direction of the radiator fan by adjusting the rotation angle of the ball bearing 12. The radiator operation control device 9 may be an ATS (Automatic temperature cooling system, automatic constant temperature cooling system) controller.

Step S204, the radiator fan is controlled to operate by using the corrected duty cycle and/or the corrected wind direction.

Specifically, the operation parameters of the radiator fan are typically adjusted once every preset time, which is typically set to 15 minutes.

According to the control method for the operation of the radiator, the radiator is electrically connected with the fuel cell stack, the radiator comprises a radiator fan, initial operation parameters of the radiator fan are firstly obtained, and the initial operation parameters at least comprise an initial duty ratio of the radiator fan and an initial wind direction of the radiator fan; then, acquiring environmental parameters of a radiator fan, wherein the environmental parameters represent environmental conditions in a space in which the radiator is positioned, and the environmental parameters at least comprise environmental wind direction and environmental precipitation; then correcting the initial duty ratio of the radiator fan by adopting the environmental precipitation amount, determining the corrected duty ratio, and/or correcting the initial wind direction of the radiator fan by adopting the environmental wind direction, and determining the corrected wind direction; and finally, controlling the radiator fan to operate by adopting the corrected duty cycle and/or the corrected wind direction. According to the method, the temperature control precision of the radiator is greatly enhanced through controlling the environmental precipitation and the wind direction, the temperature of the water inlet of the fuel cell is more stable, the performance of the fuel cell is better released, and the energy consumption is reduced. The problem of current pile radiator easily receive environmental factor influence, lead to the temperature control performance poor, the energy consumption is high is solved.

The embodiment relates to a specific radiator operation control method, as shown in fig. 5, including the following steps:

step S1: firstly, starting the fuel cell stack and the radiator;

step S2: detecting whether the external environment is rainy or not, obtaining a heat dissipation coefficient according to the heat dissipation capacity of cooling water and the heat dissipation capacity of environmental rainwater under the condition that the external environment is rainy, and then adjusting the duty ratio of a radiator fan according to the heat dissipation coefficient;

step S3: after the external environment is not rained and the duty ratio of the radiator fan is adjusted, the radiator corner motor is driven to move according to the ambient wind direction, so that the wind direction of the radiator fan tends to the ambient wind direction;

step S4: and detecting whether the adjusting angle of the radiator fan is consistent with the instruction of the controller in real time.

It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is illustrated in the flowcharts, in some cases the steps illustrated or described may be performed in an order other than that illustrated herein.

The embodiment of the application also provides a fuel cell system, as shown in fig. 3, including: a fuel cell stack 100 having a water outlet and a water inlet; the radiator 200 has a water outlet and a water inlet, the water outlet 4 of the radiator is connected with the water inlet 2 of the fuel cell stack through a pipeline, the water inlet 3 of the radiator is connected with the water outlet 1 of the fuel cell stack through another pipeline, the radiator comprises a radiator fan 8, and the radiator is controlled to operate by any one of the control methods of the radiator operation.

The fuel cell system of the present application includes: a fuel cell stack having a water outlet and a water inlet; the radiator is provided with a water outlet and a water inlet, the water outlet of the radiator is connected with the water inlet of the fuel cell stack through a pipeline, the water inlet of the radiator is connected with the water outlet of the fuel cell stack through another pipeline, the radiator comprises a radiator fan, and the radiator is controlled to operate by any one of the radiator operation control methods. According to the system, the temperature control precision of the radiator is greatly enhanced by controlling the environmental precipitation and the wind direction, the temperature of the water inlet of the fuel cell is more stable, the performance of the fuel cell is better released, and the energy consumption is reduced. The problem of current pile radiator easily receive environmental factor influence, lead to the temperature control performance poor, the energy consumption is high is solved.

In another embodiment, as shown in fig. 3, the heat sink further includes: a temperature sensor 5 for detecting at least one of: the water outlet temperature of the radiator, the water inlet temperature of the radiator, the ambient temperature and the three-hole velocimeter 6 are used for detecting the ambient wind speed and/or the ambient wind direction; and a rainfall sensor 7 for detecting the amount of environmental precipitation.

The rainfall sensor obtains real-time rainfall at the moment according to the rainfall sensor, and because the rainwater passes through the surface of the radiator, the temperature of the rainwater is obviously lower than the hot air temperature of the radiator, and part of the rainwater absorbs heat and evaporates to take away heat. At the same fan speed, the phase change of rainwater is added to take away heat, and the total heat dissipation capacity of the radiator becomes larger. The wind speed is determined by two reasons, namely, the vehicle speed and the local natural wind. Firstly, the faster the vehicle speed is, the larger the corresponding headwind is, and the larger the wind speed is measured by the three-hole velocimeter. Simultaneously, the three-hole velocimeter can measure wind direction, and the angle of the radiator is adjusted to obtain the maximum ventilation air quantity. The larger the wind speed of the three-hole velocimeter is, the faster the ambient air around the radiator flows, the hot air generated by heat dissipation of the radiator can be taken away, and the heat dissipation capacity is also larger under the same rotating speed of the fan.

An environment temperature sensor, a rainfall sensor and a three-hole velocimeter are arranged above the radiator body, all sensor signal wire harnesses are connected with a radiator controller or a whole vehicle controller (depending on whether the radiator has an autonomous controller or not), and the radiator controller calculates coefficients to allocate the rotating speed of the fan according to various obtained signals.

In another embodiment, as shown in fig. 3, the heat sink further includes: and a control device 9 for the operation of the radiator. The radiator operation control device is used for any one of the radiator operation control methods and is used for controlling the radiator fan.

In another embodiment, as shown in fig. 4, the heat sink further includes: a drive motor 11, a ball bearing 12 and a frame 13. The radiator fan is mounted on the frame through the ball bearing.

The embodiment of the application also provides a control device for the operation of the radiator, and the control device for the operation of the radiator can be used for executing the control method for the operation of the radiator. The device is used for realizing the above embodiments and preferred embodiments, and is not described in detail. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. While the means described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and contemplated.

The following describes a control device for operation of a radiator provided by an embodiment of the present application.

Fig. 6 is a schematic diagram of a control device for the operation of a radiator according to an embodiment of the present application. As shown in fig. 6, the radiator is electrically connected to the fuel cell stack, the radiator includes a radiator fan, the apparatus includes a first acquiring unit 10, a second acquiring unit 20, a first determining unit 30, and a control unit 40, the first acquiring unit 10 is configured to acquire initial operation parameters of the radiator fan, the initial operation parameters include at least an initial duty ratio of the radiator fan and an initial wind direction of the radiator fan; the second obtaining unit 20 is configured to obtain an environmental parameter of the radiator fan, where the environmental parameter characterizes an environmental condition in a space where the radiator is located, and the environmental parameter includes at least an environmental wind direction and an environmental precipitation; the first determining unit 30 is configured to correct an initial duty cycle of the radiator fan using the environmental precipitation amount, determine a corrected duty cycle, and/or correct an initial wind direction of the radiator fan using the environmental wind direction, and determine a corrected wind direction; the control unit 40 is configured to control the operation of the radiator fan using the correction duty cycle and/or the correction wind direction.

The radiator is electrically connected with the fuel cell stack, and comprises a radiator fan, wherein the radiator fan comprises a first acquisition unit, a second acquisition unit, a first determination unit and a control unit, the first acquisition unit is used for acquiring initial operation parameters of the radiator fan, and the initial operation parameters at least comprise an initial duty ratio of the radiator fan and an initial wind direction of the radiator fan; the second acquisition unit is used for acquiring the environmental parameters of the radiator fan, wherein the environmental parameters represent the environmental conditions in the space where the radiator is positioned, and at least the environmental parameters comprise the environmental wind direction and the environmental precipitation; the first determining unit is used for correcting the initial duty ratio of the radiator fan by using the environmental precipitation amount, determining the corrected duty ratio, and/or correcting the initial wind direction of the radiator fan by using the environmental wind direction, and determining the corrected wind direction; the control unit is used for controlling the operation of the radiator fan by adopting the correction duty ratio and/or the correction wind direction. The device is through controlling the environmental precipitation and wind direction for radiator temperature control precision strengthens greatly, and fuel cell water inlet temperature is more stable, and fuel cell performance is better released, and has reduced the energy consumption. The problem of current pile radiator easily receive environmental factor influence, lead to the temperature control performance poor, the energy consumption is high is solved.

In an alternative example, the first determining unit includes a first obtaining module, a second obtaining module, a first determining module, and a second determining module, where the first obtaining module is configured to obtain a first correction coefficient, where the first correction coefficient is a ratio of a first heat dissipation amount to a second heat dissipation amount, where the first heat dissipation amount is heat dissipated by ambient rainwater at a current time, where the second heat dissipation amount is heat dissipated by radiator coolant at the current time, where the first heat dissipation amount is related to the ambient precipitation amount at the current time, and where the ambient rainwater is rainwater in a space where the radiator is located; the second obtaining module is configured to obtain a second correction coefficient, where the second correction coefficient is a ratio of a third heat dissipation amount to a fourth heat dissipation amount, the third heat dissipation amount is heat dissipated by the environmental rainwater at a target time, the fourth heat dissipation amount is heat dissipated by the radiator coolant at the target time, the third heat dissipation amount is related to the environmental precipitation amount at the target time, and the current time is a time after the target time passes through a preset time; the first determining module is used for determining a correction difference value and/or a correction ratio according to a first correction coefficient and the second correction coefficient, wherein the correction difference value is the difference value between the first correction coefficient and the second correction coefficient, and the correction ratio is the ratio between the first correction coefficient and the second correction coefficient; the second determining module is used for correcting the duty ratio of the radiator fan according to the correction difference value and/or the correction ratio and determining the correction duty ratio. The duty cycle of the radiator fan can be adjusted more accurately.

In an alternative solution, the apparatus further includes a third obtaining unit, a first constructing unit, and a second determining unit, where the third obtaining unit is configured to obtain, before obtaining the first correction factor, a volume of the radiator cooling liquid, an inlet temperature of the radiator, an outlet temperature of the radiator, a specific heat capacity of the radiator cooling liquid, and a density of the radiator cooling liquid in a unit time; the first construction unit is configured to construct a first heat dissipation formula Q according to a volume of the radiator coolant, an inlet temperature of the radiator, an outlet temperature of the radiator, a specific heat capacity of the radiator coolant, and a density of the radiator coolant in a unit time ₁ ＝c ₁ (ρ ₁ V ₁ )(T _in -T _out ) Wherein V is ₁ Is the volume of the cooling liquid of the radiator in unit time, T _in Is the inlet temperature T of the radiator _out For the outlet temperature, c, of the radiator ₁ Specific heat capacity ρ of the radiator coolant ₁ For the density, Q of the radiator cooling liquid ₁ Heat dissipated for the radiator cooling liquid; the second determining unit is used for determining heat dissipated by the radiator cooling liquid according to the first heat dissipation formula. The duty cycle of the radiator fan can be adjusted more accurately.

The apparatus further includes a fourth obtaining module, a second constructing module, and a third determining unit, where the fourth obtaining module is configured to obtain, before obtaining the first correction coefficient, a vaporization volume of the environmental rainwater, a vaporization temperature of the environmental rainwater, an environmental temperature, a specific heat capacity of the environmental rainwater, and a density of the environmental rainwater in a unit time; the second construction module is used for constructing a second heat dissipation formula Q according to the vaporization volume of the environmental rainwater, the vaporization temperature of the environmental rainwater, the environmental temperature, the specific heat capacity of the environmental rainwater and the density of the environmental rainwater in unit time ₂ ＝c ₂ (ρ ₂ V ₂ )(T _air -T ₀ ) Wherein V is ₂ Is the vaporization volume T of the environmental rainwater in unit time _air Is the vaporization temperature T of the rainwater in the environment ₀ Is the above ambient temperature, c ₂ Specific heat capacity and ρ of the above-mentioned environmental rainwater ₂ For the density, Q of the above-mentioned environmental rainwater ₂ Heat dissipated for the environmental rainwater; the third determining unit is used for determining heat dissipated by the environmental rainwater according to the second heat dissipation formula. The heat dissipated by the environmental rainwater under the condition of different rainfall can be calculated, and on the basis, the sum of the heat dissipated by the radiator cooling liquid and the heat required to be dissipated by the radiator fan can be calculated according to the total heat required by the fuel cell stack and the heat dissipated by the environmental rainwater.

In this embodiment, the fourth obtaining module includes an obtaining sub-module, a constructing sub-module, and a determining sub-module, where the obtaining sub-module is configured to obtain a heat dissipation area of the radiator fan, a number of the radiator fans in a working state, a volume of the environmental rainwater in a unit time, and a vaporization proportion of the environmental rainwater; the construction submodule is used for constructing a vaporization volume formula V according to the heat dissipation area of the radiator fans, the number of the radiator fans in a working state, the volume of the environmental rainwater in unit time and the vaporization proportion of the environmental rainwater ₂ ＝X×S×n×k _α Wherein S is the heat radiation area of the radiator fan, n is the number of the radiator fans in the working state, and X is the unit timeVolume, k of the environmental rainwater _α The vaporization proportion of the rainwater in the environment is V ₂ The vaporization volume of the environmental rainwater in unit time; the determining submodule is used for determining the vaporization volume of the environmental rainwater in unit time according to the vaporization volume formula. The vaporization volume of the environmental rainwater in unit time can be calculated, so that the heat dissipation capacity of the environmental rainwater is obtained, and the radiator fan is controlled.

Alternatively, the first determining unit includes an adjusting module, which is configured to adjust a wind direction of the radiator fan according to the ambient wind direction until the wind direction of the radiator fan is the same as the ambient wind direction or the wind direction of the radiator fan reaches a wind direction threshold, and determine the adjusted wind direction of the radiator fan as the corrected wind direction. The wind direction of the radiator fan can be adjusted to be the same as the ambient wind direction as much as possible, so that the influence of the ambient wind direction on the heat dissipation capacity of the radiator fan can be reduced to the greatest extent.

As an alternative, the apparatus further includes a fourth acquiring unit and a fourth determining unit, where the fourth acquiring unit is configured to acquire an operating parameter of the fuel cell stack, and the operating parameter of the fuel cell stack includes at least one of: pile voltage, pile current, pile output power; and the fourth determining unit is used for determining the total heat dissipation capacity of the fuel cell stack according to the operation parameters of the fuel cell stack, wherein the total heat dissipation capacity of the fuel cell stack is the sum of the heat dissipation capacity of the radiator fan, the heat dissipation capacity of the environmental rainwater and the heat dissipation capacity of the environmental wind speed. The total heat dissipation capacity required by the fuel cell stack can be accurately controlled.

The control device for the operation of the radiator comprises a processor and a memory, wherein the first acquisition unit and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to realize corresponding functions. The modules are all located in the same processor; alternatively, the above modules may be located in different processors in any combination.

The processor includes a kernel, and the kernel fetches the corresponding program unit from the memory. The inner core can be provided with one or more than one, and the problems of poor temperature control performance and high energy consumption caused by the fact that the existing electric pile radiator is easily influenced by environmental factors are solved by adjusting the parameters of the inner core.

The memory may include volatile memory, random Access Memory (RAM), and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM), among other forms in computer readable media, the memory including at least one memory chip.

The embodiment of the invention provides a computer readable storage medium, which comprises a stored program, wherein the program is used for controlling equipment where the computer readable storage medium is located to execute a control method for executing the operation of a radiator.

Specifically, the control method for the operation of the radiator comprises the following steps:

Optionally, correcting the initial duty cycle of the radiator fan by using the environmental precipitation, and determining the corrected duty cycle includes: acquiring a first correction coefficient, wherein the first correction coefficient is the ratio of a first heat dissipation capacity to a second heat dissipation capacity, the first heat dissipation capacity is the heat dissipated by the environmental rainwater at the current moment, the second heat dissipation capacity is the heat dissipated by the cooling liquid of the radiator at the current moment, the first heat dissipation capacity is related to the environmental precipitation capacity at the current moment, and the environmental rainwater is the rainwater in the space where the radiator is located; obtaining a second correction coefficient, wherein the second correction coefficient is a ratio of a third heat dissipation amount to a fourth heat dissipation amount, the third heat dissipation amount is heat dissipated by the environmental rainwater at a target time, the fourth heat dissipation amount is heat dissipated by the radiator cooling liquid at the target time, the third heat dissipation amount is related to the environmental precipitation amount at the target time, and the current time is a time after a preset time passes through the target time; determining a correction difference value and/or a correction ratio according to a first correction coefficient and the second correction coefficient, wherein the correction difference value is the difference value between the first correction coefficient and the second correction coefficient, and the correction ratio is the ratio between the first correction coefficient and the second correction coefficient; and correcting the duty ratio of the radiator fan according to the correction difference value and/or the correction ratio to determine the correction duty ratio.

Optionally, before acquiring the first correction coefficient, the method further includes: acquiring the volume of the radiator cooling liquid, the inlet temperature of the radiator, the outlet temperature of the radiator, the specific heat capacity of the radiator cooling liquid and the density of the radiator cooling liquid in unit time; according to the volume of the cooling liquid of the radiator, the inlet temperature of the radiator and the outlet of the radiator in unit timeThe first heat dissipation formula Q is constructed by the port temperature, the specific heat capacity of the radiator cooling liquid and the density of the radiator cooling liquid ₁ ＝c ₁ (ρ ₁ V ₁ )(T _in -T _out ) Wherein V is ₁ Is the volume of the cooling liquid of the radiator in unit time, T _in Is the inlet temperature T of the radiator _out For the outlet temperature, c, of the radiator ₁ Specific heat capacity ρ of the radiator coolant ₁ For the density, Q of the radiator cooling liquid ₁ Heat dissipated for the radiator cooling liquid; and determining the heat dissipated by the radiator cooling liquid according to the first heat dissipation formula.

Optionally, before acquiring the first correction coefficient, the method further includes: acquiring the vaporization volume of the environmental rainwater, the vaporization temperature of the environmental rainwater, the environmental temperature, the specific heat capacity of the environmental rainwater and the density of the environmental rainwater in unit time; constructing a second heat dissipation formula Q according to the vaporization volume of the environmental rainwater, the vaporization temperature of the environmental rainwater, the environmental temperature, the specific heat capacity of the environmental rainwater and the density of the environmental rainwater in unit time ₂ ＝c ₂ (ρ ₂ V ₂ )(T _air -T ₀ ) Wherein V is ₂ Is the vaporization volume T of the environmental rainwater in unit time _air Is the vaporization temperature T of the rainwater in the environment ₀ Is the above ambient temperature, c ₂ Specific heat capacity and ρ of the above-mentioned environmental rainwater ₂ For the density, Q of the above-mentioned environmental rainwater ₂ Heat dissipated for the environmental rainwater; and determining the heat dissipated by the environmental rainwater according to the second heat dissipation formula.

Optionally, acquiring the vaporization volume of the environmental rainwater in unit time includes: acquiring the heat radiation area of the radiator fans, the number of the radiator fans in a working state, the volume of the environmental rainwater in unit time and the vaporization proportion of the environmental rainwater; according to the heat dissipation area of the radiator fan, the number of the radiator fans in the working state, the volume of the environmental rainwater in unit time and the vaporization proportion of the environmental rainwaterConstructing a vaporization volume formula V ₂ ＝X×S×n×k _α Wherein S is the heat radiation area of the radiator fan, n is the number of the radiator fans in the working state, X is the volume of the environmental rainwater in unit time, k _α The vaporization proportion of the rainwater in the environment is V ₂ The vaporization volume of the environmental rainwater in unit time; and determining the vaporization volume of the environmental rainwater in unit time according to the vaporization volume formula.

The embodiment of the invention provides a processor, which is used for running a program, wherein the program runs to execute the control method for the running of a radiator.

Optionally, before acquiring the first correction coefficient, the method further includes: acquiring the volume of the radiator cooling liquid, the inlet temperature of the radiator, the outlet temperature of the radiator, the specific heat capacity of the radiator cooling liquid and the density of the radiator cooling liquid in unit time; constructing a first heat dissipation formula Q according to the volume of the radiator cooling liquid, the inlet temperature of the radiator, the outlet temperature of the radiator, the specific heat capacity of the radiator cooling liquid and the density of the radiator cooling liquid in unit time ₁ ＝c ₁ (ρ ₁ V ₁ )(T _in -T _out ) Wherein V is ₁ Is the volume of the cooling liquid of the radiator in unit time, T _in Is the inlet temperature T of the radiator _out For the outlet temperature, c, of the radiator ₁ Specific heat capacity ρ of the radiator coolant ₁ For the density, Q of the radiator cooling liquid ₁ Heat dissipated for the radiator cooling liquid; and determining the heat dissipated by the radiator cooling liquid according to the first heat dissipation formula.

Optionally, acquiring the vaporization volume of the environmental rainwater in unit time includes: acquiring the heat radiation area of the radiator fans, the number of the radiator fans in a working state, the volume of the environmental rainwater in unit time and the vaporization proportion of the environmental rainwater; according to the heat radiation area of the radiator fan, the number of the radiator fans in a working state, the volume of the environmental rainwater in unit time and the vaporization proportion of the environmental rainwater, constructing a vaporization volume formula V ₂ ＝X×S×n×k _α Wherein S is the heat radiation area of the radiator fan, n is the number of the radiator fans in the working state, X is the volume of the environmental rainwater in unit time, k _α The vaporization proportion of the rainwater in the environment is V ₂ The vaporization volume of the environmental rainwater in unit time; and determining the vaporization volume of the environmental rainwater in unit time according to the vaporization volume formula.

The embodiment of the invention provides equipment, which comprises a processor, a memory and a program stored in the memory and capable of running on the processor, wherein the processor realizes at least the following steps when executing the program:

the device herein may be a server, PC, PAD, cell phone, etc.

Optionally, before acquiring the first correction coefficient, the method further includes: acquiring the vaporization volume of the environmental rainwater, the vaporization temperature of the environmental rainwater, the environmental temperature, the specific heat capacity of the environmental rainwater and the density of the environmental rainwater in unit time; constructing a second heat dissipation formula Q according to the vaporization volume of the environmental rainwater, the vaporization temperature of the environmental rainwater, the environmental temperature, the specific heat capacity of the environmental rainwater and the density of the environmental rainwater in unit time ₂ ＝c ₂ (ρ ₂ V ₂ )(T _air -T ₀ ) Wherein V is ₂ Vaporization body for the above-mentioned environmental rainwater in unit timeProduct of T _air Is the vaporization temperature T of the rainwater in the environment ₀ Is the above ambient temperature, c ₂ Specific heat capacity and ρ of the above-mentioned environmental rainwater ₂ For the density, Q of the above-mentioned environmental rainwater ₂ Heat dissipated for the environmental rainwater; and determining the heat dissipated by the environmental rainwater according to the second heat dissipation formula.

The application also provides a computer program product adapted to perform, when executed on a data processing device, a program initialized with at least the following method steps:

It will be appreciated by those skilled in the art that the modules or steps of the invention described above may be implemented in a general purpose computing device, they may be concentrated on a single computing device, or distributed across a network of computing devices, they may be implemented in program code executable by computing devices, so that they may be stored in a storage device for execution by computing devices, and in some cases, the steps shown or described may be performed in a different order than that shown or described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple modules or steps of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

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

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, etc., such as Read Only Memory (ROM) or flash RAM. Memory is an example of a computer-readable medium.

Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises an element.

From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

1) According to the control method for the operation of the radiator, the radiator is electrically connected with the fuel cell stack, the radiator comprises a radiator fan, initial operation parameters of the radiator fan are firstly obtained, and the initial operation parameters at least comprise an initial duty ratio of the radiator fan and an initial wind direction of the radiator fan; then, acquiring environmental parameters of a radiator fan, wherein the environmental parameters represent environmental conditions in a space in which the radiator is positioned, and the environmental parameters at least comprise environmental wind direction and environmental precipitation; then correcting the initial duty ratio of the radiator fan by adopting the environmental precipitation amount, determining the corrected duty ratio, and/or correcting the initial wind direction of the radiator fan by adopting the environmental wind direction, and determining the corrected wind direction; and finally, controlling the radiator fan to operate by adopting the corrected duty cycle and/or the corrected wind direction. According to the method, the temperature control precision of the radiator is greatly enhanced through controlling the environmental precipitation and the wind direction, the temperature of the water inlet of the fuel cell is more stable, the performance of the fuel cell is better released, and the energy consumption is reduced. The problem of current pile radiator easily receive environmental factor influence, lead to the temperature control performance poor, the energy consumption is high is solved.

2) The fuel cell system of the present application includes: a fuel cell stack having a water outlet and a water inlet; the radiator is provided with a water outlet and a water inlet, the water outlet of the radiator is connected with the water inlet of the fuel cell stack through a pipeline, the water inlet of the radiator is connected with the water outlet of the fuel cell stack through another pipeline, the radiator comprises a radiator fan, and the radiator is controlled to operate by any one of the radiator operation control methods. According to the system, the temperature control precision of the radiator is greatly enhanced by controlling the environmental precipitation and the wind direction, the temperature of the water inlet of the fuel cell is more stable, the performance of the fuel cell is better released, and the energy consumption is reduced. The problem of current pile radiator easily receive environmental factor influence, lead to the temperature control performance poor, the energy consumption is high is solved.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method of controlling operation of a heat sink, wherein the heat sink is electrically connected to a fuel cell stack, the heat sink comprising a heat sink fan, the method comprising:

acquiring initial operation parameters of the radiator fan, wherein the initial operation parameters at least comprise an initial duty ratio of the radiator fan and an initial wind direction of the radiator fan;

acquiring environmental parameters of the radiator fan, wherein the environmental parameters represent environmental conditions in a space in which the radiator is positioned, and the environmental parameters at least comprise environmental wind direction and environmental precipitation;

correcting the initial duty cycle of the radiator fan by adopting the environmental precipitation amount, determining the corrected duty cycle, and/or correcting the initial wind direction of the radiator fan by adopting the environmental wind direction, and determining the corrected wind direction;

and controlling the radiator fan to operate by adopting the corrected duty cycle and/or the corrected wind direction.

2. The control method of claim 1, wherein correcting the initial duty cycle of the radiator fan using the ambient precipitation amount, determining a corrected duty cycle, comprises:

acquiring a first correction coefficient, wherein the first correction coefficient is the ratio of a first heat dissipation capacity to a second heat dissipation capacity, the first heat dissipation capacity is the heat dissipated by the environmental rainwater at the current moment, the second heat dissipation capacity is the heat dissipated by the cooling liquid of the radiator at the current moment, the first heat dissipation capacity is related to the environmental precipitation capacity at the current moment, and the environmental rainwater is the rainwater in the space where the radiator is located;

Acquiring a second correction coefficient, wherein the second correction coefficient is the ratio of a third heat dissipation capacity to a fourth heat dissipation capacity, the third heat dissipation capacity is the heat dissipated by the environmental rainwater at a target time, the fourth heat dissipation capacity is the heat dissipated by the radiator cooling liquid at the target time, the third heat dissipation capacity is related to the environmental precipitation capacity at the target time, and the current time is the time after the preset time passes through the target time;

determining a correction difference value and/or a correction ratio according to a first correction coefficient and the second correction coefficient, wherein the correction difference value is the difference value between the first correction coefficient and the second correction coefficient, and the correction ratio is the ratio between the first correction coefficient and the second correction coefficient;

and correcting the duty ratio of the radiator fan according to the correction difference value and/or the correction ratio, and determining the correction duty ratio.

3. The control method according to claim 2, characterized in that before the first correction coefficient is acquired, the method further comprises:

acquiring the volume of the radiator cooling liquid, the inlet temperature of the radiator, the outlet temperature of the radiator, the specific heat capacity of the radiator cooling liquid and the density of the radiator cooling liquid in unit time;

According to the volume of the radiator cooling liquid, the inlet temperature of the radiator, the outlet temperature of the radiator and the specific heat capacity of the radiator cooling liquid in unit timeAnd the density of the radiator cooling liquid to construct a first heat dissipation formula Q ₁ ＝c ₁ (ρ ₁ V ₁ )(T _in -T _out ) Wherein V is ₁ Is the volume of the cooling liquid of the radiator in unit time, T _in For the inlet temperature, T, of the radiator _out For the outlet temperature, c, of the radiator ₁ Specific heat capacity and ρ of the radiator coolant ₁ For the density, Q, of the radiator coolant ₁ Heat dissipated for the radiator coolant;

and determining the heat dissipated by the radiator cooling liquid according to the first heat dissipation formula.

4. The control method according to claim 2, characterized in that before the first correction coefficient is acquired, the method further comprises:

acquiring the vaporization volume of the environmental rainwater, the vaporization temperature of the environmental rainwater, the environmental temperature, the specific heat capacity of the environmental rainwater and the density of the environmental rainwater in unit time;

constructing a second heat dissipation formula Q according to the vaporization volume of the environmental rainwater, the vaporization temperature of the environmental rainwater, the environmental temperature, the specific heat capacity of the environmental rainwater and the density of the environmental rainwater in unit time ₂ ＝c ₂ (ρ ₂ V ₂ )(T _air -T ₀ ) Wherein V is ₂ Is the vaporization volume of the environmental rainwater in unit time, T _air For the vaporization temperature, T, of the ambient rain ₀ For the ambient temperature, c ₂ Specific heat capacity and ρ for the ambient rain water ₂ For the density, Q of the environmental rainwater ₂ Heat dissipated to the ambient rain;

and determining the heat dissipated by the environmental rainwater according to the second heat dissipation formula.

5. The control method according to claim 4, wherein acquiring the vaporization volume of the ambient rain water per unit time includes:

acquiring the heat dissipation area of the radiator fans, the number of the radiator fans in a working state, the volume of the environmental rainwater and the vaporization proportion of the environmental rainwater in unit time;

according to the heat dissipation area of the radiator fans, the number of the radiator fans in a working state, the volume of the environmental rainwater in unit time and the vaporization proportion of the environmental rainwater, a vaporization volume formula V is constructed ₂ ＝X×S×n×k _α Wherein S is the heat radiation area of the radiator fan, n is the number of the radiator fans in a working state, X is the volume of the environmental rainwater in unit time, k _α For the vaporization proportion of the environmental rainwater, V ₂ A vaporization volume of the ambient stormwater per unit time;

and determining the vaporization volume of the environmental rainwater in unit time according to the vaporization volume formula.

6. The control method of claim 1, wherein correcting the initial wind direction of the radiator fan using the ambient wind direction, determining a corrected wind direction, comprises:

and adjusting the wind direction of the radiator fan according to the ambient wind direction until the wind direction of the radiator fan is the same as the ambient wind direction or the wind direction of the radiator fan reaches a wind direction threshold value, and determining the adjusted wind direction of the radiator fan as the corrected wind direction.

7. The control method according to claim 1, characterized in that the method further comprises:

an operating parameter of a fuel cell stack is obtained, the operating parameter of the fuel cell stack including at least one of: pile voltage, pile current, pile output power;

and determining the total heat dissipation capacity of the fuel cell stack according to the operation parameters of the fuel cell stack, wherein the total heat dissipation capacity of the fuel cell stack is the sum of the heat dissipation capacity of the radiator fan, the heat dissipation capacity of the environmental rainwater and the heat dissipation capacity of the environmental wind speed.

8. A fuel cell system, characterized by comprising:

a fuel cell stack having a water outlet and a water inlet;

a radiator having a water outlet and a water inlet, the water outlet of the radiator being connected to the water inlet of the fuel cell stack by a pipe, the water inlet of the radiator being connected to the water outlet of the fuel cell stack by another pipe, the radiator comprising a radiator fan, the radiator being controlled in operation by the method of controlling operation of the radiator according to any one of claims 1 to 7.

9. The fuel cell system according to claim 8, wherein the heat sink further comprises:

a temperature sensor for detecting at least one of: the water outlet temperature of the radiator, the water inlet temperature of the radiator, the ambient temperature,

The three-hole velocimeter is used for detecting the ambient wind speed and/or the ambient wind direction;

and the rainfall sensor is used for detecting the environmental precipitation.

10. A computer-readable storage medium, characterized in that the computer-readable storage medium includes a stored program, wherein the program, when run, controls a device in which the computer-readable storage medium is located to execute the control method of the operation of the heat sink according to any one of claims 1 to 7.