CN114454687A - Air electric heater protection method, device, equipment and storage medium - Google Patents
Air electric heater protection method, device, equipment and storage medium Download PDFInfo
- Publication number
- CN114454687A CN114454687A CN202210117983.1A CN202210117983A CN114454687A CN 114454687 A CN114454687 A CN 114454687A CN 202210117983 A CN202210117983 A CN 202210117983A CN 114454687 A CN114454687 A CN 114454687A
- Authority
- CN
- China
- Prior art keywords
- heater
- temperature
- protection
- electric heater
- air electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000012544 monitoring process Methods 0.000 claims abstract description 42
- 230000008569 process Effects 0.000 claims description 11
- 238000009841 combustion method Methods 0.000 abstract description 9
- 238000004891 communication Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Classifications
-
- 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
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
- B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
- B60H1/2218—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters controlling the operation of electric heaters
-
- 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
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
- B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
- B60H1/2225—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters arrangements of electric heaters for heating air
-
- 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
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
- B60H2001/2228—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant controlling the operation of heaters
- B60H2001/2231—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant controlling the operation of heaters for proper or safe operation of the heater
-
- 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
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
- B60H2001/2246—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant obtaining information from a variable, e.g. by means of a sensor
- B60H2001/2256—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant obtaining information from a variable, e.g. by means of a sensor related to the operation of the heater itself, e.g. flame detection or overheating
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a method, a device, equipment and a storage medium for protecting an air electric heater, wherein the method comprises the following steps: monitoring the internal temperature of the air electric heater to obtain the temperature of the heater; sending the temperature of the heater to a thermal management controller, so that the thermal management controller starts a primary protection strategy when the temperature of the heater meets a preset first protection condition; if the temperature of the heater meets a preset second protection condition, determining that the air electric heater has a dry burning fault, and starting a secondary protection strategy; through the inside temperature of monitoring air electric heater, when the heater temperature satisfies first protection condition, the thermal management controller starts one-level protection strategy, when the thermal management controller detects error or trouble, judge whether the heater temperature satisfies the second protection condition, when satisfying, in time start the second grade protection strategy and judge that air electric heater dry combustion method trouble appears, but the dry combustion method trouble of accurate judgement air electric heater through double-deck protection strategy realizes effective protection.
Description
Technical Field
The invention relates to the field of air electric heaters, in particular to a method, a device, equipment and a storage medium for protecting an air electric heater.
Background
At present, the pure electric vehicle type of the new energy automobile and the unpowered system waste heat utilization need to be additionally provided with an electric heater for heating a passenger cabin, wherein the electric heater is divided into a hydroelectric heater, an air electric heater and the like. Because electric heater only carries out on-off control through the relay in the circuit, but when the inside short circuit of relay became invalid, contact adhesion condition, as long as the air conditioner complete machine does not cut off the power supply, electric heater will be in the dry combustion method work always this moment, if electric heater lasts dry combustion method easily because of the heat can't give off, causes the trouble.
At present, for an air electric heater, the existing dry burning prevention protection method is to detect a dry burning fault when the temperature change value of the air electric heater exceeds 20 ℃ and the time is more than 1s and less than 10s, but the air electric heater stops working in a fault-free state due to unstable and accidental jump of a sensor temperature value or misjudgment generated when a temperature acquisition circuit is interfered, so that the use of a customer is influenced, and poor comfortable feeling experience is brought to the customer, so that the problem of low accuracy in the judgment of the dry burning fault of the existing air electric heater exists.
Disclosure of Invention
The invention mainly aims to provide a method, a device, equipment and a storage medium for protecting an air electric heater, and aims to solve the technical problem of low accuracy in judging dry combustion faults of the air electric heater.
In order to achieve the above object, the present invention provides a method for protecting an air electric heater, comprising the steps of:
monitoring the internal temperature of the air electric heater to obtain the temperature of the heater;
sending the heater temperature to a thermal management controller, so that the thermal management controller starts a primary protection strategy when the heater temperature meets a preset first protection condition;
and if the temperature of the heater meets a preset second protection condition, determining that the air electric heater has a dry burning fault, and starting a secondary protection strategy.
Preferably, the step of monitoring the internal temperature of the electric air heater to obtain the heater temperature comprises:
acquiring a time interval of temperature monitoring;
and monitoring the internal temperature of the air electric heater based on the time interval to obtain the heater temperature.
Preferably, the first protection condition comprises a first threshold value and a second threshold value, wherein the first threshold value is larger than the second threshold value,
the step of sending the heater temperature to a thermal management controller so that the thermal management controller starts a primary protection strategy when the heater temperature meets a preset first protection condition includes:
and sending the heater temperature to a thermal management controller, so that the thermal management controller starts a primary protection strategy when the heater temperature is greater than the first threshold, and cancels the primary protection strategy when the heater temperature is less than the second threshold.
Preferably, in the process of sending the heater temperature to a thermal management controller so that the thermal management controller starts a primary protection strategy when the heater temperature is greater than the first threshold, when monitoring at least one heater temperature based on preset times, when the at least one heater temperature is greater than the first threshold, the primary protection strategy is started.
Preferably, the primary protection strategy is to forcibly turn off the air electric heater.
Preferably, the second protection condition comprises a third threshold,
if the temperature of the heater meets a preset second protection condition, determining that the air electric heater has a dry-burning fault, and starting a secondary protection strategy, wherein the step comprises the following steps of:
comparing the heater temperature with the third threshold;
if the heater temperature is greater than the third threshold, determining whether the process time of the heater temperature greater than the third threshold exceeds a preset time threshold;
if yes, determining that the air electric heater has a dry burning fault, and starting a secondary protection strategy.
Preferably, the secondary protection strategy is that the air electric heater stops working and outputs the dry-burning fault related information.
Further, to achieve the above object, the present invention also provides an air electric heater protecting apparatus, comprising:
the monitoring module is used for monitoring the internal temperature of the air electric heater to obtain the temperature of the heater;
the primary protection module is used for sending the heater temperature to a thermal management controller so that the thermal management controller starts a primary protection strategy when the heater temperature meets a preset first protection condition;
and the secondary protection module is used for determining that the air electric heater has a dry burning fault and starting a secondary protection strategy if the temperature of the heater meets a preset second protection condition.
In addition, to achieve the above object, the present application also provides an air electric heater protection device, which includes a memory, a processor and an air electric heater protection program stored on the memory and operable on the processor, and when executed by the processor, implements the steps of the air electric heater protection method as described above.
Further, to achieve the above object, the present application also provides a computer readable storage medium having stored thereon an air electric heater protection program which, when executed by a processor, implements the steps of the air electric heater protection method as described above.
According to the air electric heater protection method, the air electric heater protection device, the air electric heater protection equipment and the storage medium, the internal temperature of the air electric heater is monitored, and the heater temperature is obtained; sending the heater temperature to a thermal management controller, so that the thermal management controller starts a primary protection strategy when the heater temperature meets a preset first protection condition; if the temperature of the heater meets a preset second protection condition, determining that the air electric heater has a dry burning fault, and starting a secondary protection strategy; in this way, through monitoring air electric heater's inside temperature, when heater temperature satisfies first protection condition, the thermal management controller starts one-level protection strategy, if the thermal management controller detects when having mistake or trouble, judge whether heater temperature satisfies second protection condition, when satisfying, in time start the second grade protection strategy and judge that air electric heater appears the trouble of burning futilely, but the trouble of burning futilely of judgement air electric heater that can be accurate through double-deck protection strategy realizes effective protection.
Drawings
FIG. 1 is a schematic diagram of a terminal \ device structure of a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a first embodiment of a method for protecting an electric air heater according to the present invention;
FIG. 3 is a functional block diagram of the air heater protection device according to the preferred embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The main solution of the embodiment of the invention is as follows:
at present, for an air electric heater, the existing dry burning prevention protection method is to detect a dry burning fault when the temperature change value of the air electric heater exceeds 20 ℃ and the time is more than 1s and less than 10s, but the air electric heater stops working in a fault-free state due to unstable and accidental jump of a sensor temperature value or misjudgment generated when a temperature acquisition circuit is interfered, so that the use of a customer is influenced, and poor comfortable feeling experience is brought to the customer, so that the problem of low accuracy in the judgment of the dry burning fault of the existing air electric heater exists.
The invention provides a solution, which is suitable for the field of air electric heaters of air conditioners of electric vehicles and solves the technical problem of low accuracy in judging dry burning faults of the air electric heaters.
As shown in fig. 1, fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present invention.
The terminal of the embodiment of the invention can be a PC, and can also be a mobile terminal device with a display function, such as a smart phone, a tablet computer, an electronic book reader, an MP3(Moving Picture Experts Group Audio Layer III, dynamic video Experts compress standard Audio Layer 3) player, an MP4(Moving Picture Experts Group Audio Layer IV, dynamic video Experts compress standard Audio Layer 3) player, a portable computer, and the like.
As shown in fig. 1, the terminal may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. The communication bus 1002 is used to implement connection communication among these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Optionally, the terminal may further include a camera, a Radio Frequency (RF) circuit, a sensor, an audio circuit, a WiFi module, and the like. Such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that may adjust the brightness of the display screen according to the brightness of ambient light, and a proximity sensor that may turn off the display screen and/or the backlight when the mobile terminal is moved to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), detect the magnitude and direction of gravity when the mobile terminal is stationary, and can be used for applications (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer and tapping) and the like for recognizing the attitude of the mobile terminal; of course, the mobile terminal may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which are not described herein again.
Those skilled in the art will appreciate that the terminal structure shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, the memory 1005, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and an air electric heater protection program.
In the terminal shown in fig. 1, the network interface 1004 is mainly used for connecting a background server and communicating data with the background server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to invoke an air electric heater protection program stored in the memory 1005 and perform the following operations:
monitoring the internal temperature of the air electric heater to obtain the temperature of the heater;
sending the heater temperature to a thermal management controller, so that the thermal management controller starts a primary protection strategy when the heater temperature meets a preset first protection condition;
and if the temperature of the heater meets a preset second protection condition, determining that the air electric heater has a dry burning fault, and starting a secondary protection strategy.
Further, the processor 1001 may call the air electric heater protection program stored in the memory 1005, and also perform the following operations:
acquiring a time interval of temperature monitoring;
and monitoring the internal temperature of the air electric heater based on the time interval to obtain the temperature of the heater.
Further, the processor 1001 may call the air electric heater protection program stored in the memory 1005, and also perform the following operations:
and sending the heater temperature to a thermal management controller, so that the thermal management controller starts a primary protection strategy when the heater temperature is greater than the first threshold, and cancels the primary protection strategy when the heater temperature is less than the second threshold.
Further, the processor 1001 may call the air electric heater protection program stored in the memory 1005, and also perform the following operations:
and sending the heater temperature to a thermal management controller so that the thermal management controller starts a primary protection strategy when the heater temperature is greater than the first threshold, monitoring at least one heater temperature based on preset times, and starting the primary protection strategy when the at least one heater temperature is greater than the first threshold.
Further, the processor 1001 may call the air electric heater protection program stored in the memory 1005, and also perform the following operations:
comparing the heater temperature with the third threshold;
if the heater temperature is greater than the third threshold, determining whether the process time of the heater temperature greater than the third threshold exceeds a preset time threshold;
if yes, determining that the air electric heater has a dry burning fault, and starting a secondary protection strategy.
Referring to fig. 2, a first embodiment of a method, an apparatus, a device and a storage medium for protecting an air electric heater according to the present invention provides a method for protecting an air electric heater, the method comprising:
step S10, monitoring the internal temperature of the air electric heater to obtain the temperature of the heater;
step S20, sending the heater temperature to a thermal management controller, so that the thermal management controller starts a primary protection strategy when the heater temperature meets a preset first protection condition;
and step S30, if the temperature of the heater meets a preset second protection condition, determining that the air electric heater has a dry burning fault, and starting a secondary protection strategy.
In this embodiment, it should be noted that, in the application scenario of the present application, when the air electric heater of the air conditioner of the electric vehicle continuously works, it is determined whether the air electric heater has a dry-fire fault, and when the dry-fire fault occurs, a protection strategy is timely started to protect the air electric heater. Through the inside temperature of monitoring air electric heater, when the heater temperature satisfies first protection condition, thermal management controller starts one-level protection strategy, when if thermal management controller detects mistake or trouble, judge whether the heater temperature satisfies the second protection condition, when satisfying, in time start the second grade protection strategy and judge that air electric heater dry combustion method trouble appears, but effective protection is realized to the dry combustion method trouble of judgement air electric heater that can be accurate through double-deck protection strategy.
The method comprises the following specific steps:
step S10, monitoring the internal temperature of the air electric heater to obtain the temperature of the heater;
in this embodiment, the air conditioning system of the electric vehicle includes a thermal management controller, where the thermal management controller controls all components in the air conditioner, including the air electric heater, and monitors the internal temperature of the air electric heater through a sensor of the air electric heater to obtain the heater temperature. It should be noted that, when the sensor of the air electric heater is used for monitoring the temperature, the filtering in the circuit can be purified, and the erroneous judgment generated when the temperature acquisition circuit is interfered is avoided, so as to ensure the stability of temperature monitoring.
Further, monitoring the internal temperature of the air electric heater to obtain the heater temperature includes the following steps S11-S12:
step S11, acquiring a time interval for temperature monitoring;
and step S12, monitoring the internal temperature of the air electric heater based on the time interval to obtain the heater temperature.
In this embodiment, the air electric heater is started to work, and the temperature monitoring task and the temperature protection task are started at the same time, so as to obtain a time interval of temperature monitoring, where the time interval of temperature monitoring refers to a time length between two adjacent times of obtaining the heater temperature, and parameters of the time interval can be set through a bench test of the electric vehicle. The internal temperature of the air electric heater is monitored multiple times based on the time interval to obtain at least one heater temperature.
Further, the time interval is set to 100ms (milliseconds).
Step S20, sending the heater temperature to a thermal management controller, so that the thermal management controller starts a primary protection strategy when the heater temperature meets a preset first protection condition;
in this embodiment, the acquired heater temperature is sent to a thermal management controller of the air conditioner, so that the thermal management controller determines whether the heater temperature meets a preset first protection condition, and if the heater temperature meets the first condition, the thermal management controller starts a primary protection strategy to perform dry-burning protection on the air electric heater.
It should be noted that the primary protection strategy refers to a first layer of protection measures for the electric air heater, and the primary protection strategy is to forcibly turn off a heating module in the electric air heater.
Further, the step of sending the heater temperature to a thermal management controller so that the thermal management controller starts a primary protection strategy when the heater temperature meets a preset first protection condition includes the following steps S21:
step S21, sending the heater temperature to a thermal management controller, so that the thermal management controller starts a primary protection strategy when the heater temperature is greater than the first threshold, and cancels the primary protection strategy when the heater temperature is less than the second threshold.
In this embodiment, the first protection condition includes a first threshold and a second threshold, where the first threshold is greater than the second threshold, and it is understood that the first protection condition is to activate a primary protection strategy when the heater temperature is greater than the first threshold, and to resume the operation of the electric air heater when the heater temperature is less than the second threshold. Specifically, comparing the heater temperature with a first threshold, if the heater temperature is greater than the first threshold, the thermal management controller starts a primary protection strategy, that is, forcibly turns off the heating module in the air electric heater. And continuously monitoring the real-time internal temperature of the air electric heater by a sensor of the air electric heater to obtain the temperature of the heater, and canceling the primary protection strategy when the temperature of the heater is less than a second threshold value, namely recovering the work of the air electric heater.
It should be noted that, in order to improve the accuracy of fault protection, in the process of sending the heater temperature to the thermal management controller so that the thermal management controller starts the primary protection strategy when the heater temperature is greater than the first threshold, the number of times that the heater temperature is greater than the first threshold is preset, when at least one heater temperature is monitored based on the preset number of times, and when the at least one heater temperature is greater than the first threshold, the primary protection strategy is started, where the preset number of times may be set according to the monitoring precision, and the number of times may be 5. That is, when the number of times that the heater temperature is greater than the first threshold is greater than or equal to 5 times, the primary protection strategy is activated, and it should be noted that the internal temperature of the electric air heater is monitored and acquired according to a preset time interval.
And step S30, if the temperature of the heater meets a preset second protection condition, determining that the air electric heater has a dry burning fault, and starting a secondary protection strategy.
In the embodiment, a secondary protection strategy is set on the basis of a primary protection strategy so as to accurately judge the dry-burning fault of the air heater through double-layer protection. After monitoring the temperature of the heater, the sensor of the air electric heater simultaneously sends the temperature of the heater to the thermal management controller and the control module of the air electric heater, and the air electric heater is protected from working through the thermal management controller and the air electric heater. When the air electric heater is used for protecting the self-operation, when the air electric heater meets a preset second protection condition according to the heater temperature determiner, the air electric heater is judged to have a dry burning fault, and then a secondary protection strategy is started to realize effective protection.
Further, if the heater temperature meets a preset second protection condition, determining that the air electric heater has a dry-fire fault, and starting a secondary protection strategy, including the following steps S31-S33:
step S31, comparing the heater temperature with the third threshold;
step S32, if the heater temperature is greater than the third threshold, determining whether the process time during which the heater temperature is greater than the third threshold exceeds a preset time threshold;
and step S33, if yes, determining that the air electric heater has dry burning fault, and starting a secondary protection strategy.
In this embodiment, it should be noted that the second protection condition includes a third threshold, and it is understood that the second protection condition is to initiate a secondary protection strategy when the heater temperature is greater than the third threshold. Specifically, the heater temperature is compared with a third threshold, and if the heater temperature is greater than the third threshold, whether the time that the heater temperature is greater than the third threshold exceeds a preset time threshold is further determined, wherein the time threshold is a time value for determining the dry-fire fault of the air electric heater, and the time value can be set through a bench test. And if the time that the temperature of the heater is greater than the third threshold exceeds a preset time threshold, starting a secondary protection strategy, for example, if the time threshold is 0.5s and the time interval is 100ms, judging that the air electric heater has a dry-burning fault when the temperature of the heater continuously monitored by the sensor of the air electric heater for 5 times is greater than the third threshold, and starting the secondary protection strategy by the controller of the air electric heater.
It should be noted that the secondary protection strategy is a second-layer protection measure for the air electric heater, and the secondary protection strategy may be that the air electric heater stops working, and outputs the related information of the dry combustion fault, and reports the related information of the dry combustion fault to a VCU (Vehicle control unit) of the electric Vehicle, so that the VCU optimizes or adjusts the air electric heater.
In this embodiment, the method includes the steps of: monitoring the internal temperature of the air electric heater to obtain the temperature of the heater; sending the heater temperature to a thermal management controller, so that the thermal management controller starts a primary protection strategy when the heater temperature meets a preset first protection condition; if the temperature of the heater meets a preset second protection condition, determining that the air electric heater has a dry burning fault, and starting a secondary protection strategy; in this way, through the inside temperature of monitoring air electric heater, when the heater temperature satisfies first protection condition, the heat management controller starts one-level protection strategy, if the heat management controller detects when having mistake or trouble, judge whether the heater temperature satisfies the second protection condition, when satisfying, in time start the second grade protection strategy and judge that air electric heater dry combustion method trouble appears, but the dry combustion method trouble of judgement air electric heater that can be accurate through double-deck protection strategy realizes effective protection.
Further, based on the above-described first embodiment, a second embodiment of the air electric heater protection method of the present application is proposed. In this embodiment, the air electric heater protection method further includes:
the first-stage protection strategy is to forcibly turn off the air electric heater, the second-stage protection strategy is to stop the air electric heater and output the dry burning fault related information, the first threshold value is 100 ℃, the second threshold value is 65 ℃, the third threshold value is 160 ℃, and the time threshold value is 0.5 s.
In this embodiment, the sensor of the air electric heater monitors the internal temperature of the air electric heater to obtain the heater temperature, and sends the heater temperature to the thermal management controller, so that the thermal management controller starts a primary protection strategy when the heater temperature is greater than 100 ℃, i.e., forcibly turns off the air electric heater, and resumes the operation of the air electric heater when the heater temperature of the air electric heater is less than 65 ℃. And if the heater temperature of the air electric heater is more than 160 ℃ and exceeds 0.5s, judging that the air electric heater is in a dry-burning fault, starting a secondary protection strategy, namely stopping the air electric heater, outputting and reporting relevant information of the dry-burning fault, and at the moment, obtaining a temperature protection result.
In this embodiment, through the double-deck protection of one-level protection strategy and second grade protection strategy, accurate judgement air electric heater's dry combustion method trouble starts the protection strategy in time, realizes effective protection.
Referring to fig. 3, a first embodiment of the air electric heater protection method according to the present invention provides an air electric heater protection device, which includes, based on the embodiment shown in fig. 3:
the monitoring module 10 is used for monitoring the internal temperature of the air electric heater to obtain the temperature of the heater;
the primary protection module 20 is used for sending the heater temperature to a thermal management controller so that the thermal management controller starts a primary protection strategy when the heater temperature meets a preset first protection condition;
and the secondary protection module 30 is used for determining that the air electric heater has a dry-burning fault and starting a secondary protection strategy if the temperature of the heater meets a preset second protection condition.
Optionally, the monitoring module 10 includes:
the acquisition submodule acquires a time interval of temperature monitoring;
and the monitoring submodule monitors the internal temperature of the air electric heater based on the time interval to obtain the temperature of the heater.
Optionally, the primary protection module 20 includes:
and the primary protection submodule is used for sending the heater temperature to a thermal management controller so as to enable the thermal management controller to start a primary protection strategy when the heater temperature is greater than the first threshold value, and cancel the primary protection strategy when the heater temperature is less than the second threshold value.
Optionally, the primary protection sub-module includes:
and the primary protection subunit is used for sending the heater temperature to a thermal management controller so as to enable the thermal management controller to start a primary protection strategy when the heater temperature is higher than the first threshold, monitoring at least one heater temperature based on preset times, and starting the primary protection strategy when the at least one heater temperature is higher than the first threshold.
Optionally, the secondary protection module 30 includes:
a comparison submodule for comparing the heater temperature with the third threshold value;
the determining submodule determines whether the process time of the heater temperature being greater than the third threshold exceeds a preset time threshold if the heater temperature is greater than the third threshold;
and if the secondary protection sub-module is in the normal state, determining that the air electric heater has a dry burning fault, and starting a secondary protection strategy.
In addition, this application still provides air electric heater protection equipment. As shown in fig. 1, fig. 1 is a schematic structural diagram of a hardware operating environment according to an embodiment of the present application.
Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, where an air electric heater protection program is stored, and when the air electric heater protection program is executed by a processor, the steps of the air electric heater protection method described above are implemented.
The specific implementation of the computer-readable storage medium of the present application is substantially the same as the embodiments of the air electric heater protection method described above, and is not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system 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 system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An air electric heater protection method is characterized by comprising the following steps:
monitoring the internal temperature of the air electric heater to obtain the temperature of the heater;
sending the heater temperature to a thermal management controller, so that the thermal management controller starts a primary protection strategy when the heater temperature meets a preset first protection condition;
and if the temperature of the heater meets a preset second protection condition, determining that the air electric heater has a dry burning fault, and starting a secondary protection strategy.
2. The air electric heater protection method as claimed in claim 1, wherein the step of monitoring the internal temperature of the air electric heater to obtain the heater temperature comprises:
acquiring a time interval of temperature monitoring;
and monitoring the internal temperature of the air electric heater based on the time interval to obtain the heater temperature.
3. The air electric heater protection method of claim 1, wherein the first protection condition includes a first threshold value and a second threshold value, wherein the first threshold value is greater than the second threshold value,
the step of sending the heater temperature to a thermal management controller so that the thermal management controller starts a primary protection strategy when the heater temperature meets a preset first protection condition includes:
and sending the heater temperature to a thermal management controller, so that the thermal management controller starts a primary protection strategy when the heater temperature is greater than the first threshold, and cancels the primary protection strategy when the heater temperature is less than the second threshold.
4. The air electric heater protection method of claim 3, wherein in sending the heater temperature to a thermal management controller to cause the thermal management controller to initiate a primary protection strategy when the heater temperature is greater than the first threshold, when at least one heater temperature is monitored based on a preset number of times, the primary protection strategy is initiated when the at least one heater temperature is greater than the first threshold.
5. The air electric heater protection method of claim 4, wherein the primary protection strategy is to forcibly turn off the air electric heater.
6. The air electric heater protection method according to claim 1, wherein the second protection condition includes a third threshold value,
if the temperature of the heater meets a preset second protection condition, determining that the air electric heater has a dry burning fault, and starting a secondary protection strategy, wherein the step comprises the following steps of:
comparing the heater temperature with the third threshold;
if the heater temperature is greater than the third threshold, determining whether the process time of the heater temperature greater than the third threshold exceeds a preset time threshold;
if yes, determining that the air electric heater has a dry burning fault, and starting a secondary protection strategy.
7. The air electric heater protection method according to any one of claims 1 to 6, wherein the secondary protection strategy is that the air electric heater stops working and the dry-fire fault related information is output.
8. An electric air heater protection device, comprising:
the monitoring module is used for monitoring the internal temperature of the air electric heater to obtain the temperature of the heater;
the primary protection module is used for sending the heater temperature to a thermal management controller so that the thermal management controller starts a primary protection strategy when the heater temperature meets a preset first protection condition;
and the secondary protection module is used for determining that the air electric heater has a dry burning fault and starting a secondary protection strategy if the temperature of the heater meets a preset second protection condition.
9. An air electric heater protection apparatus, characterized in that the air electric heater protection apparatus comprises: memory, a processor and an air electric heater protection program stored on the memory and executable on the processor, the air electric heater protection program when executed by the processor implementing the steps of the method according to any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that an air electric heater protection program is stored on the computer-readable storage medium, which when executed by a processor implements the steps of the air electric heater protection method according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210117983.1A CN114454687A (en) | 2022-02-08 | 2022-02-08 | Air electric heater protection method, device, equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210117983.1A CN114454687A (en) | 2022-02-08 | 2022-02-08 | Air electric heater protection method, device, equipment and storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114454687A true CN114454687A (en) | 2022-05-10 |
Family
ID=81413230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210117983.1A Pending CN114454687A (en) | 2022-02-08 | 2022-02-08 | Air electric heater protection method, device, equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114454687A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1178488A (en) * | 1997-09-03 | 1999-03-23 | Matsushita Electric Ind Co Ltd | Automobile air-conditioning controller |
| CN106828021A (en) * | 2017-03-03 | 2017-06-13 | 镇江海姆霍兹传热传动***有限公司 | Auto heater temperature sensor |
| JP2018103717A (en) * | 2016-12-26 | 2018-07-05 | 株式会社デンソー | Control module |
| CN110403471A (en) * | 2019-08-23 | 2019-11-05 | 福建省上杭县爱养生医疗设备有限公司 | A kind of instant heating type direct drinking device for fetching water and its control system device |
| CN212987438U (en) * | 2020-09-08 | 2021-04-16 | 青岛海信日立空调***有限公司 | Air conditioner |
| CN113007857A (en) * | 2021-04-19 | 2021-06-22 | 宁波奥克斯电气股份有限公司 | Operation control method and device for electric heater of air conditioner, air conditioner and computer readable storage medium |
| CN113280471A (en) * | 2021-06-15 | 2021-08-20 | 珠海格力电器股份有限公司 | Dry-burning fault judgment method and device for air conditioner electric heater and air conditioner |
-
2022
- 2022-02-08 CN CN202210117983.1A patent/CN114454687A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1178488A (en) * | 1997-09-03 | 1999-03-23 | Matsushita Electric Ind Co Ltd | Automobile air-conditioning controller |
| JP2018103717A (en) * | 2016-12-26 | 2018-07-05 | 株式会社デンソー | Control module |
| CN106828021A (en) * | 2017-03-03 | 2017-06-13 | 镇江海姆霍兹传热传动***有限公司 | Auto heater temperature sensor |
| CN110403471A (en) * | 2019-08-23 | 2019-11-05 | 福建省上杭县爱养生医疗设备有限公司 | A kind of instant heating type direct drinking device for fetching water and its control system device |
| CN212987438U (en) * | 2020-09-08 | 2021-04-16 | 青岛海信日立空调***有限公司 | Air conditioner |
| CN113007857A (en) * | 2021-04-19 | 2021-06-22 | 宁波奥克斯电气股份有限公司 | Operation control method and device for electric heater of air conditioner, air conditioner and computer readable storage medium |
| CN113280471A (en) * | 2021-06-15 | 2021-08-20 | 珠海格力电器股份有限公司 | Dry-burning fault judgment method and device for air conditioner electric heater and air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104729015B (en) | In-car air quality control method and equipment | |
| CN107975915B (en) | Control method and device of air conditioner and computer readable storage medium | |
| CN109142953B (en) | Leakage current monitoring method and electronic equipment | |
| CN110562006B (en) | Low voltage protection method, apparatus, computer device and storage medium | |
| US20130106604A1 (en) | Home appliance monitoring system and method | |
| CN109885323B (en) | Application program upgrading method, mobile terminal and readable storage medium | |
| CN112389429B (en) | Adaptive cruise control method, adaptive cruise system, vehicle, and storage medium | |
| CN110262362B (en) | AGV working temperature monitoring method, system and device | |
| CN111216662A (en) | Multifunctional vehicle-mounted system and control method thereof | |
| CN114454687A (en) | Air electric heater protection method, device, equipment and storage medium | |
| WO2019114720A1 (en) | Method and system for controlling vehicle seat, and application program and computer device | |
| CN113335298A (en) | CPU fault processing method, vehicle and readable storage medium | |
| CN110850850B (en) | Off-line detection method, device and equipment for cooling water pump and storage medium | |
| CN113212243A (en) | Battery thermal runaway diagnosis method, device, equipment and storage medium | |
| CN109520080B (en) | Air conditioner, dual-core control method thereof and computer readable storage medium | |
| CN105210034A (en) | Display control device, display control method, and program | |
| CN110901338A (en) | Air conditioner dry burning prevention control method and device and computer readable storage medium | |
| CN114069803B (en) | Portable emergency energy storage power supply detection method, device, equipment and storage medium | |
| CN114077203B (en) | Method and device for safety protection, electrical equipment and storage medium | |
| CN105229607A (en) | Display control unit and display control method and program | |
| CN112319306B (en) | Electric vehicle control circuit and control method thereof | |
| CN110596627B (en) | Detection method and device for vehicle diagnosis box | |
| CN114876653B (en) | Engine emergency control method, device, equipment and storage medium | |
| CN114121009A (en) | Vehicle instrument voice control method and device, equipment terminal and readable storage medium | |
| CN112484389A (en) | Electronic equipment parameter adjusting method, system, equipment and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |