CN111114240A - Waste heat utilization control method and device and waste heat utilization system - Google Patents
Waste heat utilization control method and device and waste heat utilization system Download PDFInfo
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- CN111114240A CN111114240A CN202010014706.9A CN202010014706A CN111114240A CN 111114240 A CN111114240 A CN 111114240A CN 202010014706 A CN202010014706 A CN 202010014706A CN 111114240 A CN111114240 A CN 111114240A
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- heating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
- B60H1/14—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit
- B60H1/143—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit the heat being derived from cooling an electric component, e.g. electric motors, electric circuits, fuel cells or batteries
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- Air-Conditioning For Vehicles (AREA)
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Abstract
The application provides a waste heat utilization control method, a device and a waste heat utilization system, wherein the method is applied to a controller in the waste heat utilization system, the waste heat utilization system further comprises a heating loop, the heating loop is provided with a heat exchanger, a warm air radiator and a water pump, and the method comprises the following steps: detecting whether the first heating equipment is in a heating mode; if the first heat supply equipment is in the heat supply mode, further detecting whether the power of the fuel cell is larger than the set power; if the power of the fuel cell is larger than the set power, determining whether a waste heat utilization starting condition is met according to the temperature of the passenger compartment and a preset first temperature; and if the residual heat utilization starting condition is met, controlling the warm air radiator to radiate the heat in the heating loop to the passenger compartment. The waste heat utilization control method provided by the application can use the heat generated by the fuel cell for the passenger compartment, so that the economical efficiency of the fuel cell automobile is improved, and the fuel consumption is reduced.
Description
Technical Field
The application relates to the technical field of vehicle heating, in particular to a waste heat utilization control method, a device and a waste heat utilization system.
Background
The fuel cell vehicle is a vehicle using a fuel cell as a main power supply, and the fuel cell vehicle attracts much attention because the fuel cell has the advantages of low working temperature, good environmental suitability, high reliability, high energy conversion efficiency, zero emission and the like.
At present, the fuel cell automobile adopts a direct electric heating mode during heating in winter, and the mode consumes a large amount of fuel. The fuel cell can generate a large amount of heat energy during operation, for example, a 60kW fuel cell system can generate about 60kW heat, and if the heat energy can be used for heating a passenger compartment of a fuel cell automobile, the economy of the fuel cell automobile can be greatly improved, the fuel consumption is reduced, and the driving range of the whole automobile is increased.
Disclosure of Invention
In view of the above, the present application provides a waste heat utilization control method, device and system, so as to heat the passenger compartment of a fuel cell vehicle by the heat generated by a fuel cell, and the scheme is as follows:
a waste heat utilization control method is applied to a controller in a waste heat utilization system, the waste heat utilization system further comprises a heating loop, the heating loop is provided with a heat exchanger, a warm air radiator and a water pump, the controller can control the warm air radiator, the heat exchanger is used for exchanging heat generated by a fuel cell into the heating loop, and the water pump is used for enabling water in the heating loop to circularly flow;
the waste heat utilization control method comprises the following steps:
detecting whether the first heating equipment is in a heating mode;
if the first heat supply equipment is in the heat supply mode, further detecting whether the power of the fuel cell is larger than the set power;
if the power of the fuel cell is larger than the set power, determining whether a waste heat utilization starting condition is met according to the temperature of the passenger compartment and a preset first temperature;
and if the residual heat utilization starting condition is met, controlling the warm air radiator to radiate the heat in the heating loop to the passenger compartment.
Preferably, the determining whether the waste heat utilization start condition is satisfied according to the temperature of the passenger compartment and a preset first temperature includes:
and if the temperature of the passenger compartment is less than the first temperature, determining that the waste heat utilization starting condition is met.
Preferably, controlling the warm air radiator to radiate heat in the heating circuit to the passenger compartment includes:
periodically acquiring the temperature of water in a heating loop;
and when the temperature of the water in the heating loop is higher than the preset water temperature, controlling the warm air radiator to be started so as to radiate the heat in the heating loop to the passenger compartment.
Preferably, the method further comprises the following steps:
and if the temperature of the passenger compartment is less than the first temperature, controlling the second heat supply equipment to be started, wherein the first heat supply equipment is main heat supply equipment of the passenger compartment, and the second heat supply equipment is auxiliary heat supply equipment of the passenger compartment.
Preferably, the method further comprises the following steps:
and controlling the second heating equipment to be closed if the temperature of the passenger compartment is higher than the first temperature in the process of supplying heat to the passenger compartment by the warm air radiator.
Preferably, the method further comprises the following steps:
and in the process of supplying heat to the passenger compartment by the warm air radiator, if the temperature of the passenger compartment is higher than a preset second temperature, controlling the warm air radiator to be closed, wherein the second temperature is higher than the first temperature.
Preferably, the method further comprises the following steps:
the rotation speed of the water pump is adjusted according to the temperature of the water in the heating loop.
A waste heat utilization control device is applied to a controller in a waste heat utilization system, the waste heat utilization system further comprises a heating loop, the heating loop is provided with a heat exchanger, a warm air radiator and a water pump, the controller can control the warm air radiator, the heat exchanger is used for exchanging heat generated by a fuel cell into the heating loop, and the water pump is used for enabling water in the heating loop to circularly flow;
the waste heat utilization control device includes:
the heating mode detection module is used for detecting whether the first heating equipment is in a heating mode;
the power detection module is used for further detecting whether the power of the fuel cell is larger than the set power or not when the first heat supply equipment is in the heat supply mode;
the determining module is used for determining whether a waste heat utilization starting condition is met according to the temperature of the passenger compartment and a preset first temperature if the power of the fuel cell is larger than the set power;
and the heat supply control module is used for controlling the warm air radiator to radiate the heat in the heating loop to the passenger compartment if the waste heat utilization starting condition is met.
A waste heat utilization system comprising: the system comprises a controller and a heating loop, wherein the heating loop is provided with a heat exchanger, a warm air radiator and a water pump;
a water pump for circulating water in the heating circuit;
a heat exchanger for exchanging heat generated by the fuel cell into a heating circuit;
a warm air radiator for radiating heat in the heating circuit to the passenger compartment;
a controller for detecting whether the first heating apparatus is in a heating mode; if the first heat supply equipment is in the heat supply mode, further detecting whether the power of the fuel cell is larger than the set power; if the power of the fuel cell is larger than the set power, determining whether a waste heat utilization starting condition is met according to the temperature of the passenger compartment and a preset first temperature; and if the residual heat utilization starting condition is met, controlling the warm air radiator to radiate the heat in the heating loop to the passenger compartment.
Preferably, the controller is configured to periodically obtain the temperature of the water in the heating circuit when controlling the heater radiator to radiate the heat in the heating circuit to the passenger compartment, and to control the heater radiator to be activated to radiate the heat in the heating circuit to the passenger compartment when the temperature of the water in the heating circuit is greater than a preset water temperature.
According to the technical scheme, the waste heat utilization control method can be applied to a controller in a waste heat utilization system, and the waste heat utilization system further comprises a heating loop, wherein a heat exchanger, a warm air radiator and a water pump are arranged in the heating loop. According to the waste heat utilization control method, the first heat supply equipment is in the heat supply mode, the representation that the passenger compartment has a heating requirement is carried out, the power of the fuel cell is larger than the set power, and the representation that the heat generated by the fuel cell can be used for heating the passenger compartment. The waste heat utilization method provided by the application can use the heat generated by the fuel cell for the passenger compartment, so that the economical efficiency of the fuel cell automobile is improved, and the fuel consumption is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of a fuel cell cooling system and a waste heat utilization system;
FIG. 2 is a flowchart of a waste heat utilization control method provided by an embodiment of the present application;
FIG. 3 is a schematic structural diagram of another fuel cell cooling system and a waste heat utilization system;
fig. 4 is a schematic structural diagram of a waste heat utilization control device according to an embodiment of the present application;
fig. 5 is a block diagram of a hardware structure of the waste heat utilization control device according to the embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The application provides a waste heat utilization control method, a device and a waste heat utilization system.
The waste heat utilization system can comprise a controller and a heating loop, and the heating loop is provided with a heat exchanger, a warm air radiator and a water pump. The controller can control the warm air radiator, the heat exchanger is used for exchanging heat generated by the fuel cell to the heating loop, and the water pump is used for enabling water in the heating loop to flow in a circulating mode.
Referring to fig. 1, an alternative configuration of a fuel cell cooling system and a waste heat utilization system is shown.
In fig. 1, the fuel cell cooling system includes a cooling small circulation system and a cooling large circulation system. The cooling small circulation system comprises a fuel cell 1, a first water pump 2, a heater 3, a thermostat 4 and a filter 5, and the cooling large circulation system comprises the fuel cell 1, the first water pump 2, a radiator 7, the thermostat 4 and the filter 5. Here, the heater 3 is used to heat water when the temperature of the water in the fuel cell cooling system is lower than 5 ℃, the first water pump 2 is used to circulate the water in the fuel cell cooling system, and the thermostat 4 is used to control the water in the fuel cell cooling system to be switched from circulating in the cooling small circulation system to circulating in the cooling large circulation system when the water reaches a certain temperature.
The waste heat utilization system comprises a controller 8 and a heating circuit provided with a heat exchanger 6, a warm air radiator (indicated in fig. 1 by a first warm air radiator 10) and a water pump (indicated here by a second water pump 9 to distinguish from the first water pump 2 in the fuel cell cooling system). The controller 8 may control the first warm air radiator 10.
In an alternative embodiment, the above-mentioned waste heat utilization control method may be applied to the controller 8 shown in fig. 1, the controller 8 may be independently disposed in the waste heat utilization system, and the controller 8 may also be a controller of the first heat supply device. Here, the first heat supply apparatus is a main heat supply apparatus of the passenger compartment, alternatively, the first heat supply apparatus may be an air conditioner in the passenger compartment, and then the controller 8 is an air conditioner controller in the passenger compartment.
Next, a waste heat utilization control method provided in the embodiment of the present application will be described first.
Referring to fig. 2, a flow chart of a waste heat utilization control method is shown, where the method may include:
and S200, detecting whether the first heating equipment is in a heating mode.
The first heating device is in a heating mode, indicating a heating demand in the passenger compartment.
Taking the first heat supply apparatus as an example of the air conditioner in the passenger compartment, if the passenger compartment needs to be heated, the air conditioner in the passenger compartment may be set to the heating mode.
Based on this, the present step may detect whether the first heating apparatus is in the heating mode, thereby determining whether the passenger compartment has a heating demand.
Step S210, if the first heat supply device is in the heat supply mode, further detecting whether the power of the fuel cell is greater than a set power.
It should be noted that the larger the power of the fuel cell, the larger the heat generated by the fuel cell, and the power of the fuel cell is larger than the set power, which indicates that the heat generated by the fuel cell can heat the passenger compartment. Based on this, it is possible to further detect whether the power of the fuel cell is greater than the set power, thereby determining whether the heat generated by the fuel cell can be used for heating the passenger compartment.
And S220, if the power of the fuel cell is greater than the set power, determining whether a waste heat utilization starting condition is met according to the temperature of the passenger compartment and a preset first temperature.
If the power of the fuel cell is greater than the set power, then the heat generated by the fuel cell can be used to heat the passenger compartment.
When there is a heating demand for the passenger compartment and the heat generated by the fuel cell can be used to heat the passenger compartment, it is further necessary to determine whether the waste heat utilization start condition is satisfied according to the temperature of the passenger compartment and the preset first temperature. Here, the preset first temperature may be determined according to a temperature set by the first heat supplying device.
Still taking the first heat supply device as an example of the air conditioner, if the temperature set when the air conditioner is in the heat supply mode is 20 ℃, the passenger considers that the temperature is about 20 ℃ as the proper temperature, and if the temperature of the passenger compartment is 20 ℃, the proper temperature considered by the passenger is reached, so that the waste heat utilization is not required to be started, namely the heat generated by the fuel cell is not required to be dissipated to the passenger compartment; if the temperature of the passenger compartment is 10 c, which is far lower than the suitable temperature considered by the passenger, the waste heat utilization needs to be started, so that the temperature of the passenger compartment can be increased to the suitable temperature of about 20 c more quickly after the passenger compartment is heated by the heat generated by the fuel cell.
Optionally, the preset first temperature may be a difference between a temperature set by the first heat supply device and a first set value. Here, the first set value may be determined according to actual conditions, and for example, the first set value may be 2.
And step S230, if the waste heat utilization starting condition is met, controlling a warm air radiator to radiate heat in the heating loop to the passenger compartment.
It should be understood that after the heat exchanger exchanges the heat generated by the fuel cell to the heating circuit, the warm air radiator needs to be started to dissipate the heat in the heating circuit to the passenger compartment, so if the waste heat utilization starting condition is met, the warm air radiator can be controlled to be started to dissipate the heat in the heating circuit to the passenger compartment.
Optionally, the warm air radiator may be equipped with an electric heating wire, and more heat may be generated after the electric heating wire is heated, and the heat generated by the electric heating wire may also be dissipated to the passenger compartment through the warm air radiator, so that the temperature of the passenger compartment may be raised more quickly.
The number of the heating radiators provided in the heating circuit may be determined according to actual conditions, and for example, in fig. 1, the heating circuit is provided with 2 first heating radiators 10.
According to the waste heat utilization control method provided by the embodiment of the application, the first heat supply equipment is in the heat supply mode, the representation that the passenger compartment has a heating requirement is carried out, the power of the fuel cell is larger than the set power, and the representation that the heat generated by the fuel cell can be used for heating the passenger compartment, so that under the condition that the first heat supply equipment is in the heat supply mode and the power of the fuel cell is larger than the set power, whether a waste heat utilization starting condition is met or not can be determined according to the temperature of the passenger compartment and the preset first temperature, and when the waste heat utilization starting condition is met, the warm air radiator is controlled to radiate the heat in the heating loop to the passenger compartment. The waste heat utilization control method provided by the embodiment of the application can use the heat generated by the fuel cell for the passenger compartment, so that the economical efficiency of the fuel cell automobile is improved, and the fuel consumption is reduced.
In an alternative embodiment, the process of determining whether the waste heat utilization start condition is satisfied according to the temperature of the passenger compartment and the preset first temperature at step S220 may include: and if the temperature of the passenger compartment is less than the first temperature, determining that the waste heat utilization starting condition is met.
When the temperature of the passenger compartment is less than the first temperature, the temperature indicative of the passenger compartment is relatively low and heating is required to achieve the desired temperature. Based on this, if the temperature of the passenger compartment is less than the first temperature, it is determined that the waste heat utilization turn-on condition is satisfied, and then the warm air radiator may be controlled to radiate heat in the heating circuit to the passenger compartment, that is, to heat the passenger compartment with heat generated by the fuel cell.
In the embodiment of the application, when the temperature of the passenger compartment is less than the first temperature, the heat generated by the fuel cell can be used for heating the passenger compartment, so that the economy of the fuel cell automobile is improved, the fuel consumption is reduced, and the driving range of the whole automobile is increased.
In an alternative embodiment, the second heat-supplying device may be further controlled to be activated to heat the passenger compartment through the second heat-supplying device if the temperature of the passenger compartment is less than the first temperature. Here, the second heating apparatus is an auxiliary heating apparatus of the passenger compartment.
Fig. 3 is a schematic structural diagram of another fuel cell cooling system and a waste heat utilization system.
The fuel cell cooling system shown in fig. 3 is the same as the fuel cell cooling system shown in fig. 1, and the foregoing description can be referred to in detail, and will not be repeated here.
In fig. 3, the controller 8 in the waste heat utilization system may also control the second heat supply device 12 to be activated to radiate heat generated by the second heat supply device 12 to the passenger compartment through the second warm air radiator 13.
Optionally, the second heat supply device may be a heater, or may be a heat pump type air conditioner.
Because the outdoor unit of the heat pump type air conditioner can hardly meet the heat supply requirement when the temperature of the outdoor unit is lower than minus 5 ℃, the temperature outside the passenger cabin can be obtained, and if the temperature outside the passenger cabin is lower than a set temperature value (for example, the set temperature value is minus 5 ℃), the second heat supply equipment adopts a heater; and if the temperature outside the passenger cabin is greater than or equal to the set temperature value, the second heat supply equipment adopts a heat pump type air conditioner.
Further, if the temperature of the passenger compartment is gradually increased from less than the first temperature to the first temperature, since it can be ensured that the temperature of the passenger compartment reaches the suitable temperature only by the heat generated by the fuel cell, in order to reduce the resource consumption, the second heating apparatus may be controlled to be turned off, that is, if the temperature of the passenger compartment is greater than the first temperature during the process of supplying heat to the passenger compartment by the warm air radiator (the warm air radiator herein refers to the warm air radiator in the heating loop of the waste heat utilization system, that is, the first warm air radiator 10 in fig. 3).
In the embodiment of the present application, when the temperature of the passenger compartment is less than the first temperature, the passenger compartment may be heated by the heat generated by the fuel cell and the heat generated by the second heat supplying apparatus, so that the temperature of the passenger compartment may be more quickly increased to an appropriate temperature, and when the temperature of the passenger compartment is greater than the first temperature, the second heat supplying apparatus may be turned off, and the passenger compartment may be heated by only the heat generated by the fuel cell.
Still further, if the temperature of the passenger compartment continues to rise until the temperature is greater than the preset second temperature, the warm air radiator (the warm air radiator refers to a warm air radiator in a heating loop of the waste heat utilization system, that is, the first warm air radiator 10 in fig. 3) may be controlled to be turned off, that is, if the temperature of the passenger compartment is greater than the preset second temperature during the process of supplying heat to the passenger compartment by the warm air radiator, the warm air radiator is controlled to be turned off, wherein the second temperature is greater than the first temperature.
Here, the second temperature may also be determined according to the temperature set by the first heating apparatus. Optionally, the second temperature is the sum of the temperature set by the first heat supply device and the second set value. Here, the second set value may be determined according to actual conditions, and for example, the second set value may be 2.
In the embodiment of the application, when the temperature of the passenger compartment is gradually increased from the first temperature to be higher than the second temperature, the warm air radiator in the heating loop of the waste heat utilization system can be closed because the temperature of the passenger compartment reaches the suitable temperature.
The process of controlling the warm air radiator to radiate the heat in the heating circuit to the passenger compartment in step S230 will be described below.
It is understood that, if the temperature of the water in the heating circuit of the waste heat utilization system is low after the heat exchanger exchanges the heat generated by the fuel cell to the heating circuit of the waste heat utilization system, for example, the temperature of the water in the heating circuit of the waste heat utilization system is lower than the temperature of the passenger compartment, the heat in the heating circuit of the waste heat utilization system is dissipated to the passenger compartment without raising the temperature of the passenger compartment.
Based on this, this application can periodically acquire the temperature of waste heat utilization system's heating return circuit normal water to when the temperature of waste heat utilization system's heating return circuit normal water is greater than preset temperature, control warm braw radiator starts, with the heat dissipation to passenger cabin in the heating return circuit. For example, when the temperature of water in a heating circuit of the waste heat utilization system is higher than a preset water temperature, the first heater radiator 10 shown in fig. 3 is controlled to be activated.
The preset water temperature can be determined according to actual conditions, for example, the preset water temperature is the temperature of the passenger compartment, so that when the temperature of water in the heating loop of the waste heat utilization system is greater than the preset water temperature, the warm air radiator can be controlled to be started, and the warm air radiator can radiate heat in the heating loop of the waste heat utilization system to the passenger compartment.
It should also be noted that, the embodiment of the present application can also adjust the rotation speed of the water pump according to the temperature of the water in the heating circuit, so that the heat in the heating circuit can be better dissipated to the passenger compartment. For example, adjusting the rotation speed of the second water pump 9 shown in fig. 3 can better dissipate the heat generated by the fuel cell to the passenger compartment; the heat generated by the second heat supplying apparatus can be better dissipated to the passenger compartment by adjusting the rotation speed of the third water pump 11 shown in fig. 3.
Optionally, if the temperature of the water in the heating loop is relatively low, for example, 40 ℃, the water pump can work at a medium speed; if the temperature of the water in the heating circuit is relatively high, for example 50 c, the water pump can be operated at a high speed so that the heat in the heating circuit can be dissipated to the passenger compartment more quickly.
In an optional embodiment, the present application further provides a waste heat utilization system, where the waste heat utilization system may include a controller and a heating loop, and the heating loop is provided with a heat exchanger, a warm air radiator, and a water pump.
The water pump is used for enabling water in the heating loop to flow circularly; the heat exchanger is used for exchanging heat generated by the fuel cell into a heating loop; a warm air radiator for radiating heat in the heating circuit to the passenger compartment; the controller is used for: whether the first heat supply equipment is in a heat supply mode is detected, if the first heat supply equipment is in the heat supply mode, whether the power of the fuel cell is larger than the set power is further detected, if the power of the fuel cell is larger than the set power, whether a waste heat utilization starting condition is met is determined according to the temperature of the passenger compartment and a preset first temperature, and if the waste heat utilization starting condition is met, the warm air radiator is controlled to radiate heat in the heating loop to the passenger compartment.
Optionally, the controller is specifically configured to periodically obtain the temperature of the water in the heating loop when controlling the heater radiator to radiate the heat in the heating loop to the passenger compartment, and control the heater radiator to start to radiate the heat in the heating loop to the passenger compartment when the temperature of the water in the heating loop is greater than a preset water temperature.
The waste heat utilization system provided by the embodiment of the application and the waste heat utilization control method described above may be referred to correspondingly, and are not repeated herein.
The embodiment of the present application further provides a waste heat utilization control device, which is described below, and the waste heat utilization control device described below, the waste heat utilization control method described above, and the waste heat utilization system described above may be referred to in a corresponding manner.
The utility model provides a waste heat utilization controlling means can be applied to the controller in the waste heat utilization system, and the waste heat utilization system still includes the heating return circuit, and the heating return circuit is provided with heat exchanger, warm braw radiator and water pump, and the controller can be controlled the warm braw radiator, and the heat exchanger is arranged in exchanging the heat that fuel cell produced to the heating return circuit, and the water pump is arranged in making the water circulation in the heating return circuit flow. Referring to fig. 4, a schematic structural diagram of a waste heat utilization control device provided in an embodiment of the present application is shown, and as shown in fig. 4, the waste heat utilization control device may include: a heating mode detection module 401, a power detection module 402, a determination module 403 and a heating control module 404.
And a heating mode detection module 401, configured to detect whether the first heating apparatus is in a heating mode.
A power detecting module 402, configured to further detect whether the power of the fuel cell is greater than a set power if the first heat supply device is in the heat supply mode.
A determination module 403, configured to determine whether the waste heat utilization start condition is satisfied according to the temperature of the passenger compartment and a preset first temperature if the power of the fuel cell is greater than a set power.
And a heat supply control module 404, configured to control the warm air radiator to radiate heat in the heating loop to the passenger compartment if the waste heat utilization start condition is satisfied.
In the waste heat utilization control device provided by the embodiment of the application, the first heat supply equipment is in a heat supply mode, the representation passenger compartment has a heating demand, the power of the fuel cell is greater than the set power, and the representation heat generated by the fuel cell can be used for heating the passenger compartment. The waste heat utilization control device provided by the embodiment of the application can use the heat generated by the fuel cell for the passenger compartment, so that the economical efficiency of the fuel cell automobile is improved, and the fuel consumption is reduced.
In a possible implementation manner, the determining module is specifically configured to: and if the temperature of the passenger compartment is less than the first temperature, determining that the waste heat utilization starting condition is met.
In a possible implementation, the heating control module may include: the device comprises a temperature acquisition module and a warm air radiator starting module.
And the temperature acquisition module is used for periodically acquiring the temperature of water in the heating loop.
And the warm air radiator starting module is used for controlling the warm air radiator to be started when the temperature of the water in the heating loop is greater than the preset water temperature so as to radiate the heat in the heating loop to the passenger compartment.
In a possible implementation manner, the waste heat utilization control device provided in the embodiment of the present application may further include: and the second heating equipment starting module.
And the second heating equipment starting module is used for controlling the second heating equipment to start if the temperature of the passenger compartment is less than the first temperature.
Wherein the first heating apparatus is a main heating apparatus of the passenger compartment and the second heating apparatus is an auxiliary heating apparatus of the passenger compartment.
In a possible implementation manner, the waste heat utilization control device provided in the embodiment of the present application may further include: and the second heating equipment closing module.
And the second heating equipment closing module is used for controlling the second heating equipment to be closed if the temperature of the passenger compartment is higher than the first temperature in the process that the warm air radiator supplies heat to the passenger compartment.
In a possible implementation manner, the waste heat utilization control device provided in the embodiment of the present application may further include: and the warm air radiator closing module.
And the warm air radiator closing module is used for controlling the warm air radiator to be closed if the temperature of the passenger compartment is higher than a preset second temperature in the process that the warm air radiator supplies heat to the passenger compartment.
Wherein the second temperature is greater than the first temperature.
In a possible implementation manner, the waste heat utilization control device provided in the embodiment of the present application may further include: and a rotating speed adjusting module.
And the rotating speed adjusting module is used for adjusting the rotating speed of the water pump according to the temperature of the water in the heating loop.
An embodiment of the present application further provides a waste heat utilization control device, please refer to fig. 5, which shows a hardware structure block diagram of the waste heat utilization control device, where the hardware structure of the waste heat utilization control device may include: at least one processor 501, at least one communication interface 502, at least one memory 503, and at least one communication bus 504;
in the embodiment of the present application, the number of the processor 501, the communication interface 502, the memory 503 and the communication bus 504 is at least one, and the processor 501, the communication interface 502 and the memory 503 complete the communication with each other through the communication bus 504;
the processor 501 may be a central processing unit CPU, or an application specific Integrated circuit asic, or one or more Integrated circuits configured to implement embodiments of the present invention, or the like;
the memory 503 may include a high-speed RAM memory, and may further include a non-volatile memory (non-volatile memory) or the like, such as at least one disk memory;
wherein the memory 503 stores a program, and the processor 501 may call the program stored in the memory 503, the program being configured to:
detecting whether the first heating equipment is in a heating mode;
if the first heat supply equipment is in the heat supply mode, further detecting whether the power of the fuel cell is larger than the set power;
if the power of the fuel cell is larger than the set power, determining whether a waste heat utilization starting condition is met according to the temperature of the passenger compartment and a preset first temperature;
and if the residual heat utilization starting condition is met, controlling the warm air radiator to radiate the heat in the heating loop to the passenger compartment.
Alternatively, the detailed function and the extended function of the program may be as described above.
The embodiment of the application also provides a readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the above waste heat utilization control method is realized.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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 an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The waste heat utilization control method is characterized by being applied to a controller in a waste heat utilization system, wherein the waste heat utilization system further comprises a heating loop, the heating loop is provided with a heat exchanger, a hot air radiator and a water pump, the controller can control the hot air radiator, the heat exchanger is used for exchanging heat generated by a fuel cell into the heating loop, and the water pump is used for enabling water in the heating loop to circularly flow;
the waste heat utilization control method comprises the following steps:
detecting whether the first heating equipment is in a heating mode;
if the first heat supply equipment is in a heat supply mode, further detecting whether the power of the fuel cell is larger than a set power;
if the power of the fuel cell is larger than the set power, determining whether a waste heat utilization starting condition is met according to the temperature of the passenger compartment and a preset first temperature;
and if the waste heat utilization starting condition is met, controlling the warm air radiator to radiate the heat in the heating loop to the passenger compartment.
2. The waste heat utilization control method according to claim 1, wherein the determining whether the waste heat utilization start condition is satisfied according to the temperature of the passenger compartment and a preset first temperature includes:
and if the temperature of the passenger compartment is less than the first temperature, determining that the waste heat utilization starting condition is met.
3. The waste heat utilization control method according to claim 1, wherein the controlling the heater radiator to radiate heat in the heating circuit to the passenger compartment includes:
periodically acquiring the temperature of water in the heating loop;
and when the temperature of the water in the heating loop is greater than the preset water temperature, controlling the warm air radiator to be started so as to radiate the heat in the heating loop to the passenger compartment.
4. The waste heat utilization control method according to claim 2, further comprising:
and if the temperature of the passenger compartment is less than the first temperature, controlling a second heat supply device to be started, wherein the first heat supply device is a main heat supply device of the passenger compartment, and the second heat supply device is an auxiliary heat supply device of the passenger compartment.
5. The waste heat utilization control method according to claim 4, further comprising:
and in the process of supplying heat to the passenger compartment by the warm air radiator, if the temperature of the passenger compartment is higher than the first temperature, controlling the second heat supply equipment to be closed.
6. The waste heat utilization control method according to claim 5, characterized by further comprising:
and in the process of supplying heat to the passenger compartment by the warm air radiator, if the temperature of the passenger compartment is higher than a preset second temperature, controlling the warm air radiator to be closed, wherein the second temperature is higher than the first temperature.
7. The waste heat utilization control method according to claim 1, further comprising:
and adjusting the rotating speed of the water pump according to the temperature of the water in the heating loop.
8. The waste heat utilization control device is characterized by being applied to a controller in a waste heat utilization system, the waste heat utilization system further comprises a heating loop, the heating loop is provided with a heat exchanger, a hot air radiator and a water pump, the controller can control the hot air radiator, the heat exchanger is used for exchanging heat generated by a fuel cell into the heating loop, and the water pump is used for enabling water in the heating loop to flow in a circulating mode;
the waste heat utilization control device comprises:
the heating mode detection module is used for detecting whether the first heating equipment is in a heating mode;
the power detection module is used for further detecting whether the power of the fuel cell is larger than a set power or not when the first heat supply equipment is in a heat supply mode;
the determining module is used for determining whether a waste heat utilization starting condition is met according to the temperature of the passenger compartment and a preset first temperature if the power of the fuel cell is larger than the set power;
and the heat supply control module is used for controlling the warm air radiator to radiate the heat in the heating loop to the passenger compartment if the waste heat utilization starting condition is met.
9. A waste heat utilization system comprising: the system comprises a controller and a heating loop, wherein the heating loop is provided with a heat exchanger, a warm air radiator and a water pump;
the water pump is used for enabling water in the heating loop to circularly flow;
the heat exchanger is used for exchanging heat generated by the fuel cell into the heating loop;
the warm air radiator is used for radiating heat in the heating loop to a passenger compartment;
the controller is used for detecting whether the first heating equipment is in a heating mode; if the first heat supply equipment is in a heat supply mode, further detecting whether the power of the fuel cell is larger than a set power; if the power of the fuel cell is larger than the set power, determining whether a waste heat utilization starting condition is met according to the temperature of the passenger compartment and a preset first temperature; and if the waste heat utilization starting condition is met, controlling the warm air radiator to radiate the heat in the heating loop to the passenger compartment.
10. The waste heat utilization system as claimed in claim 9, wherein the controller is configured to periodically obtain the temperature of the water in the heating circuit when controlling the warm air radiator to radiate the heat in the heating circuit to the passenger compartment, and to control the warm air radiator to be activated to radiate the heat in the heating circuit to the passenger compartment when the temperature of the water in the heating circuit is greater than a preset water temperature.
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| CN202010014706.9A CN111114240A (en) | 2020-01-07 | 2020-01-07 | Waste heat utilization control method and device and waste heat utilization system |
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