CN116118426A - Vehicle-mounted air conditioner, control method thereof and vehicle - Google Patents

Vehicle-mounted air conditioner, control method thereof and vehicle Download PDF

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Publication number
CN116118426A
CN116118426A CN202310109077.1A CN202310109077A CN116118426A CN 116118426 A CN116118426 A CN 116118426A CN 202310109077 A CN202310109077 A CN 202310109077A CN 116118426 A CN116118426 A CN 116118426A
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CN
China
Prior art keywords
vehicle
air conditioner
current
mounted air
battery
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
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CN202310109077.1A
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Chinese (zh)
Inventor
荆涛
蔡泽瑶
马振豪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Air Conditioner Gen Corp Ltd, Qingdao Haier Air Conditioning Electric Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Air Conditioner Gen Corp Ltd
Priority to CN202310109077.1A priority Critical patent/CN116118426A/en
Publication of CN116118426A publication Critical patent/CN116118426A/en
Pending legal-status Critical Current

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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
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • 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
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • B60H1/00807—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being a specific way of measuring or calculating an air or coolant temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The invention relates to the technical field of vehicles, in particular to a vehicle-mounted air conditioner, a control method thereof and a vehicle, and aims to solve the problem that a storage battery is easy to damage when the existing vehicle-mounted air conditioner is continuously used. For this purpose, the control method of the vehicle-mounted air conditioner of the present invention comprises the steps of: and determining the working state of the vehicle-mounted air conditioner according to the state of the engine, the current of the vehicle-mounted battery, the current of the vehicle-mounted air conditioner and the sum of the currents of other working electronic elements of the vehicle. When the engine works, the vehicle-mounted air conditioner works normally. When the engine is turned off, if the current of the vehicle-mounted battery is larger than the sum of the currents of other working electronic elements of the vehicle and the current of the vehicle-mounted air conditioner, the vehicle-mounted air conditioner works normally; if the air quantity is smaller than the preset value, the vehicle-mounted air conditioner is powered off. The voltage of the vehicle-mounted battery cannot be changed, and when the electric quantity is smaller, the current of the vehicle-mounted battery can be reduced; closing the vehicle-mounted air conditioner when the current is smaller; the vehicle-mounted battery can be prevented from being damaged, and normal operation of the vehicle is further guaranteed.

Description

Vehicle-mounted air conditioner, control method thereof and vehicle
Technical Field
The invention relates to the technical field of vehicles, and particularly provides a vehicle-mounted air conditioner, a control method thereof and a vehicle.
Background
With the development of economy and society, the use of air conditioners has become a necessity for life, and the use of air conditioners has become widespread.
Most of automobiles are also provided with air conditioners at present, particularly large trucks are mainly provided with vehicle-mounted air conditioners, and when a driver or a passenger is in the automobile and the automobile is at rest in the driving process, the temperature in the automobile is unsuitable, the vehicle-mounted air conditioners are required to be started for refrigerating or heating so as to maintain the temperature in the automobile at the comfortable temperature of a human body.
In the using process of the vehicle-mounted air conditioner, the storage battery is generally used for supplying electric energy, and the storage battery also gives consideration to energy consumption support of other electronic components on the automobile. For example, electric energy used for starting a vehicle, sound equipment, a lamp, a horn, a center console, and the like is also supplied from a battery.
When the vehicle is not started and can not charge the storage battery, the vehicle-mounted air conditioner needs a large amount of electric energy in the continuous use process, the loss of the vehicle-mounted air conditioner to the storage battery is relatively large, the storage battery does not have effective energy support (namely, when the storage battery is not charged), and the storage battery is easy to lose electricity. The storage battery can be seriously damaged due to the insufficient power, and the subsequent normal use of the automobile is influenced.
Accordingly, there is a need in the related art for an in-vehicle air conditioner, a control method thereof, and a vehicle to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to solve the technical problem that the storage battery is easy to damage when the existing vehicle-mounted air conditioner is continuously used.
In a first aspect, the present invention provides a control method of an in-vehicle air conditioner, the control method including the steps of:
and determining the working state of the vehicle-mounted air conditioner according to the state of the engine, the current of the vehicle-mounted battery, the current of the vehicle-mounted air conditioner and the sum of the currents of other working electronic elements of the vehicle.
In a specific embodiment of the above control method of a vehicle-mounted air conditioner, determining the operating state of the vehicle-mounted air conditioner according to the sum of the state of the engine, the current of the vehicle-mounted battery, the current of the vehicle-mounted air conditioner and the current of other operating electronic components of the vehicle includes the specific steps of:
when the engine works, the vehicle-mounted air conditioner works normally.
In a specific embodiment of the above control method of a vehicle-mounted air conditioner, determining the operating state of the vehicle-mounted air conditioner according to the sum of the state of the engine, the current of the vehicle-mounted battery, the current of the vehicle-mounted air conditioner and the current of other operating electronic components of the vehicle includes the specific steps of:
when the engine is turned off, if the current of the vehicle-mounted battery is larger than the sum of the currents of other working electronic components of the vehicle and the current of the vehicle-mounted air conditioner, the vehicle-mounted air conditioner works normally.
In a specific embodiment of the above control method of a vehicle-mounted air conditioner, determining the operating state of the vehicle-mounted air conditioner according to the sum of the state of the engine, the current of the vehicle-mounted battery, the current of the vehicle-mounted air conditioner and the current of other operating electronic components of the vehicle includes the specific steps of:
when the engine is turned off, if the current of the vehicle-mounted battery is not more than the sum of the currents of other working electronic components of the vehicle and the current of the vehicle-mounted air conditioner, the vehicle-mounted air conditioner is turned off.
In a specific embodiment of the above method for controlling a vehicle-mounted air conditioner, the current of the vehicle-mounted battery, the current of the electronic component of the vehicle that works, and the current of the vehicle-mounted air conditioner are all real-time currents.
In a specific embodiment of the above method for controlling an in-vehicle air conditioner, the optimal in-vehicle temperature is determined based on the in-vehicle temperature and the outside-vehicle temperature.
In a specific embodiment of the control method of the vehicle-mounted air conditioner, the working mode of the vehicle-mounted air conditioner is determined according to the optimal vehicle interior temperature.
In a second aspect, the present invention provides an in-vehicle air conditioner including a controller configured to be able to perform the control method as described above.
In a third aspect, the present invention provides a vehicle comprising a vehicle body and an in-vehicle air conditioner as described above, the in-vehicle air conditioner being provided on the vehicle body.
In a specific embodiment of the vehicle, the vehicle body includes a vehicle-mounted battery and a passenger cabin, the vehicle-mounted battery is electrically connected with the vehicle-mounted air conditioner and is used for supplying power to the vehicle-mounted air conditioner, and the vehicle-mounted air conditioner is used for refrigerating or heating in the passenger cabin.
Under the condition of adopting the technical scheme, the invention can determine the working state of the vehicle-mounted air conditioner according to the state of the engine, the current of the vehicle-mounted battery, the current of the vehicle-mounted air conditioner and the sum of the currents of other working electronic elements of the vehicle; specifically, when the engine is operated, the vehicle-mounted air conditioner is normally operated. When the engine is turned off, if the current of the vehicle-mounted battery is larger than the sum of the currents of other working electronic components of the vehicle and the current of the vehicle-mounted air conditioner, the vehicle-mounted air conditioner works normally. When the engine is turned off, if the current of the vehicle-mounted battery is not more than the sum of the currents of other working electronic components of the vehicle and the current of the vehicle-mounted air conditioner, the vehicle-mounted air conditioner is turned off. The current of the vehicle-mounted battery, the current of other working electronic elements of the vehicle and the current of the vehicle-mounted air conditioner are all real-time currents. The voltage of the vehicle-mounted battery cannot be changed, and when the electric quantity is smaller, the current of the vehicle-mounted battery can be reduced; and when the current is smaller, the vehicle-mounted air conditioner is turned off, so that the vehicle-mounted battery is not damaged, and the normal operation of the vehicle is further ensured.
Drawings
Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:
fig. 1 is a flowchart of main steps of a control method of an in-vehicle air conditioner provided by the invention;
fig. 2 is a flowchart of a control method of the vehicle-mounted air conditioner (determining an air conditioner working mode) provided by the invention;
fig. 3 is a flowchart illustrating detailed steps of a control method of an in-vehicle air conditioner according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating detailed steps of a control method of an in-vehicle air conditioner according to a second embodiment of the present invention.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected, can be indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
When the vehicle is not started and the storage battery cannot be charged; the vehicle-mounted air conditioner needs a large amount of electric energy in the continuous use process, the loss of the storage battery is relatively large, the storage battery is not supported by effective energy (namely, when the storage battery is not charged), the storage battery is easy to lose electricity, the storage battery is seriously damaged, and the use of the automobile is influenced.
In order to solve the above-mentioned problems, the present embodiment discloses a vehicle comprising a vehicle body and an on-board air conditioner, wherein the vehicle body comprises a frame, an engine, a generator, a passenger compartment, an on-board battery and a plurality of electronic components, wherein the electronic components specifically comprise a sound, a display, a car light, a GPS and the like. Some of these electronic components operate when the engine of the vehicle is not started, and the operation requires the on-board battery to supply power to these electronic components so that they can operate normally.
The vehicle-mounted battery is arranged on the frame, is electrically connected with the vehicle-mounted air conditioner and other electronic elements of the vehicle, and provides electric energy for the vehicle-mounted battery.
The engine and the generator are arranged on the frame, the engine is specifically arranged in the engine cabin, and the engine can provide kinetic energy for the running of the vehicle. Specifically, the engine may rotate a vehicle of the vehicle through a transmission, thereby driving the vehicle in motion. And the engine is in transmission connection with the generator and can drive the generator to rotate so as to enable the generator to generate electricity. The electric energy generated by the generator is stored in the vehicle-mounted battery, namely, the vehicle-mounted battery is charged by the generator, all parts of the vehicle, which need to be powered, are provided with the electric energy by the vehicle-mounted battery, and particularly, the electric energy comprises the electric energy of the electronic element and the electric energy of the vehicle-mounted air conditioner, and the electric energy is provided by the vehicle-mounted battery. Even when the engine runs, the vehicle-mounted battery directly supplies power, so that the stability of the power supply voltage is guaranteed, and the electronic components and the vehicle-mounted air conditioner are prevented from being damaged due to unstable voltage supplied by the generator.
The passenger cabin is arranged on the frame, the vehicle-mounted air conditioner is arranged on the vehicle body, and the vehicle-mounted air conditioner comprises an indoor unit, an outdoor unit, a throttling device, a compressor and the like. Specifically, the indoor unit is arranged in the passenger cabin, specifically on the top of the rear wall of the passenger cabin, so that the cooling and heating of the indoor unit can better cover the whole passenger cabin. The outdoor unit is disposed outside the passenger compartment, and is specifically hung on an outer sidewall of a rear portion of the passenger compartment. Vehicle-mounted air conditioners are mainly used for cooling or heating the passenger compartment, i.e. for regulating the temperature of the passenger compartment. The passenger compartment may be a cab alone, or may include a passenger compartment and a cab.
The heating mode is operated, the compressor compresses the refrigerant into high-temperature and high-pressure gas, the high-temperature and high-pressure refrigerant gas is liquefied into low-temperature and high-pressure liquid through the condenser of the indoor unit, at the moment, the refrigerant releases a large amount of heat, and the air blown into the passenger cabin by the fan of the indoor unit is hot air, so that the passenger cabin is heated. The liquid refrigerant is throttled and decompressed by the throttle device, heat of the outdoor air is absorbed by the heat exchanger of the outdoor unit, the liquid refrigerant becomes isothermal and isobaric refrigerant again, and the isothermal and isobaric refrigerant enters the compressor to be compressed again.
The refrigerating mode is operated, the compressor compresses the gaseous refrigerant into high-temperature high-pressure gas, the gas is sent to the condenser of the indoor unit for cooling, at the moment, the refrigerant can absorb a large amount of heat, and the air blown into the passenger cabin by the fan of the indoor unit is cold air, so that the passenger cabin is refrigerated. The refrigerant is throttled and depressurized by the throttling device to be a low-temperature low-pressure gas-liquid mixture refrigerant, and the gas-liquid mixture refrigerant is vaporized by absorbing heat in air by a heat exchanger of the outdoor unit to become a gaseous refrigerant, and then returns to the compressor to be compressed again.
The vehicle further comprises a state detection part, a first current reading part, a second current reading part and a third current reading part, wherein the state detection part is used for detecting the state of the generator and is mainly used for detecting whether the generator is in a working state, namely whether the generator is charging a vehicle-mounted battery. Specifically, the state detecting member may be an engine rotation speed detecting means that determines whether the engine is operating by detecting the rotation speed of the engine, thereby determining whether the generator is in an operating state. Of course, the state detecting member may also be an oil amount detecting device for supplying oil to the engine, and determine whether the engine is in an operating state by determining whether the engine is supplying oil to the engine, thereby determining whether the generator is in an operating state.
The first current reading part is used for reading the current of the vehicle-mounted battery and can read the current of the vehicle-mounted battery in real time, specifically, an ammeter or a current sensor can be arranged at the output end of the vehicle-mounted battery, and the current output by the vehicle-mounted battery is detected in real time so that the first current reading part can read the current of the vehicle-mounted battery. The second current reading part is used for reading the current of the vehicle-mounted air conditioner, and can read the current of the vehicle-mounted air conditioner in real time, and particularly, an ammeter or a current sensor can be arranged at the input end of the vehicle-mounted air conditioner, so that the current of the vehicle-mounted air conditioner is detected in real time and is read by the second current reading part. When the working modes of the vehicle-mounted air conditioner are different, the working currents of the vehicle-mounted air conditioner are different; when the target temperature is different, the working current is also different; when the wind speeds of the vehicle-mounted air conditioners are different, the working currents of the vehicle-mounted air conditioners are different; it is thus necessary to acquire the current of the vehicle-mounted air conditioner in real time. The third current reading part is used for reading the current sum of other working electronic components of the vehicle and can be read in real time.
The vehicle-mounted air conditioner further includes a controller configured to be capable of executing the control method of the vehicle-mounted air conditioner, and to be capable of executing a cooling mode, a heating mode, and a defrosting mode of the vehicle-mounted air conditioner. The vehicle further comprises a temperature detection piece, in particular a temperature sensor; at least one passenger cabin is arranged inside and outside the passenger cabin, and the current temperature inside the vehicle and the current temperature outside the vehicle can be detected at any time. The controller may determine an optimal in-vehicle temperature according to the comparison between the in-vehicle temperature and the out-vehicle temperature, and then determine an operation mode of the air conditioner, i.e., whether to operate in a cooling mode or a heating mode, according to the optimal in-vehicle temperature.
As shown in fig. 1, the control method of the vehicle-mounted air conditioner comprises the following main steps:
s1, acquiring the state of an engine and the current i of a vehicle-mounted battery d Current i of vehicle-mounted air conditioner y Sum i of currents of electronic components of other operations of the vehicle z ；
S2, according to the state of the engine and the current i of the vehicle-mounted battery d Current i of vehicle-mounted air conditioner y Sum i of currents of electronic components of other operations of the vehicle z And determining the working state of the vehicle-mounted air conditioner.
"according to the state of the engine, the current i of the vehicle-mounted battery d Current i of vehicle-mounted air conditioner y Sum i of currents of electronic components of other operations of the vehicle z The method for determining the working state of the vehicle-mounted air conditioner specifically comprises the following detailed steps:
when the engine works, the vehicle-mounted air conditioner works normally; when the engine is turned off, if the current of the vehicle-mounted battery is larger than the sum of the currents of other working electronic elements of the vehicle and the current of the vehicle-mounted air conditioner, the vehicle-mounted air conditioner works normally; when the engine is turned off, if the current of the vehicle-mounted battery is not more than the sum of the currents of other working electronic components of the vehicle and the current of the vehicle-mounted air conditioner, the vehicle-mounted air conditioner is turned off. The current of the vehicle-mounted battery, the current of other electronic components working in the vehicle and the current of the vehicle-mounted air conditioner are all real-time currents.
When the automobile engine is in the running process, the engine can drive the generator to work, and the vehicle-mounted battery is continuously charged. Due to the action of the current-limiting switch and the transformer, the voltage U of the engine in the charging process d And current i d Is stable. General setting i d ＞i y +i z When the storage battery is fully loaded, the current limiting switch reduces the input of current to maintain the output and input of current at i d ＝i y +i z 。
In the running process of the vehicle-mounted air conditioner, when the engine is in a running state, the engine continuously supplies power to the storage battery, and at the moment, i is ensured to be larger than i y +i z The vehicle-mounted air conditioner can be ensured not to damage the vehicle-mounted battery, so that the vehicle-mounted air conditioner can always normally run. Furthermore, there is no need to continuously detect the current i of the vehicle battery during this operation d Current i of vehicle-mounted air conditioner y Sum i of currents of electronic components of other operations of the vehicle z The relationship between the three is not required to be judged.
In the running process of the vehicle-mounted air conditioner, if the engine is in a closed state, i needs to be detected in real time d And i y +i z The relation between when i d ≥i y +i z The vehicle-mounted air conditioner can keep normal operation. When i d ＜i y +i z At this time, in order to prevent the current of the vehicle-mounted battery from continuously decreasing, so as to ensure the normal operation of the vehicle, the vehicle-mounted air conditioner is forced to be shut down. Under the condition that the voltage of the vehicle-mounted battery is not changed, when the electric quantity is smaller, the current of the vehicle-mounted battery is reduced; and when the current is smaller, the vehicle-mounted air conditioner is turned off, so that the vehicle-mounted battery is not damaged, and the normal operation of the vehicle is further ensured.
As shown in fig. 2, the control method of the vehicle-mounted air conditioner further includes the following steps:
s1, acquiring the temperature in the vehicle and the temperature outside the vehicle;
s2, determining the optimal in-vehicle temperature according to the in-vehicle temperature and the out-of-vehicle temperature;
s3, determining the working mode of the vehicle-mounted air conditioner according to the optimal temperature in the vehicle.
Through the mode, the working mode of the vehicle-mounted air conditioner can be determined, and the temperature in the vehicle is adjusted to the optimal temperature through the refrigeration or heating of the vehicle-mounted air conditioner, so that the comfort in the vehicle is ensured.
The following describes the control method of the in-vehicle air conditioner in detail with two embodiments:
example 1
As shown in fig. 3, the control method of the vehicle-mounted air conditioner includes:
s1, starting the vehicle-mounted air conditioner.
S2, acquiring the temperature outside the vehicle and the temperature inside the vehicle.
S3, determining the optimal in-vehicle temperature according to the in-vehicle temperature and the out-of-vehicle temperature.
S4, determining the working mode of the vehicle-mounted air conditioner according to the optimal temperature in the vehicle, and enabling the vehicle-mounted air conditioner to operate according to the determined working mode.
S5, acquiring the working state of the engine.
S6, judging whether the engine is in a working state or not; if yes, go to step S7; if not, step S8 is performed.
S7, the vehicle-mounted air conditioner normally operates, and the step S5 is performed again after the preset time.
S8, acquiring current i of the vehicle-mounted battery d Current i of vehicle-mounted air conditioner y Sum i of currents of electronic components of other operations of the vehicle z 。
S9, judging the current i of the vehicle-mounted battery d Whether or not it is smaller than the current i of the vehicle-mounted air conditioner y Sum i of currents of electronic components operating with other vehicles z And (3) summing; if yes, S11 is performed; if not, step S10 is performed.
S10, the vehicle-mounted air conditioner normally operates, and the step S8 is performed after the preset time.
S11, shutting down the vehicle-mounted air conditioner.
Example two
As shown in fig. 4, the control method of the vehicle-mounted air conditioner includes:
s1, starting the vehicle-mounted air conditioner.
S2, acquiring the temperature outside the vehicle and the temperature inside the vehicle.
S3, determining the optimal in-vehicle temperature according to the in-vehicle temperature and the out-of-vehicle temperature.
S4, determining the working mode of the vehicle-mounted air conditioner according to the optimal temperature in the vehicle, and enabling the vehicle-mounted air conditioner to operate according to the determined working mode.
S5, acquiring current i of the vehicle-mounted battery d Current i of vehicle-mounted air conditioner y Sum i of currents of electronic components of other operations of the vehicle z 。
S6, judging the current i of the vehicle-mounted battery d Whether or not it is smaller than the current i of the vehicle-mounted air conditioner y Sum i of currents of electronic components operating with other vehicles z And (3) summing; if yes, S8 is carried out; if not, step S7 is performed.
S7, the vehicle-mounted air conditioner normally operates, and the step S8 is performed after the preset time.
S8, shutting down the vehicle-mounted air conditioner.
In the present embodiment, the state of the engine is not determined, and then the current i of the vehicle-mounted battery is always obtained d Current i of vehicle-mounted air conditioner y Sum i of currents of electronic components of other operations of the vehicle z And carrying out subsequent judgment to ensure that the vehicle-mounted battery is not damaged.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will fall within the scope of the present invention.

Claims (10)

1. The control method of the vehicle-mounted air conditioner is characterized by comprising the following steps of:
and determining the working state of the vehicle-mounted air conditioner according to the state of the engine, the current of the vehicle-mounted battery, the current of the vehicle-mounted air conditioner and the sum of the currents of other working electronic elements of the vehicle.
2. The control method according to claim 1, wherein "determining the operation state of the vehicle-mounted air conditioner based on the sum of the state of the engine, the current of the vehicle-mounted battery, the current of the vehicle-mounted air conditioner, and the current of other operating electronic components of the vehicle" includes the specific steps of:
when the engine works, the vehicle-mounted air conditioner works normally.
3. The control method according to claim 1, wherein "determining the operation state of the vehicle-mounted air conditioner based on the sum of the state of the engine, the current of the vehicle-mounted battery, the current of the vehicle-mounted air conditioner, and the current of other operating electronic components of the vehicle" includes the specific steps of:
when the engine is turned off, if the current of the vehicle-mounted battery is larger than the sum of the currents of other working electronic components of the vehicle and the current of the vehicle-mounted air conditioner, the vehicle-mounted air conditioner works normally.
4. A control method according to claim 3, wherein the "determining the operation state of the vehicle-mounted air conditioner based on the sum of the state of the engine, the current of the vehicle-mounted battery, the current of the vehicle-mounted air conditioner, and the current of other operating electronic components of the vehicle" includes the specific steps of:
when the engine is turned off, if the current of the vehicle-mounted battery is not more than the sum of the currents of other working electronic components of the vehicle and the current of the vehicle-mounted air conditioner, the vehicle-mounted air conditioner is turned off.
5. The control method according to any one of claims 1 to 4, characterized in that the current of the vehicle-mounted battery, the current of other operating electronic components of the vehicle, and the current of the vehicle-mounted air conditioner are all real-time currents.
6. The control method according to claim 1, wherein the optimal in-vehicle temperature is determined based on the in-vehicle temperature and the out-of-vehicle temperature.
7. The control method according to claim 7, characterized in that an operation mode of the vehicle-mounted air conditioner is determined based on the optimal in-vehicle temperature.
8. A vehicle-mounted air conditioner characterized by comprising a controller configured to be able to execute the control method according to any one of claims 1 to 7.
9. A vehicle characterized by comprising a vehicle body and the in-vehicle air conditioner according to claim 8, the in-vehicle air conditioner being provided on the vehicle body.
10. The vehicle of claim 9, wherein the vehicle body includes an on-board battery and a passenger compartment, the on-board battery being electrically connected to the on-board air conditioner for powering the on-board air conditioner for cooling or heating the passenger compartment.
CN202310109077.1A 2023-02-10 2023-02-10 Vehicle-mounted air conditioner, control method thereof and vehicle Pending CN116118426A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310109077.1A CN116118426A (en) 2023-02-10 2023-02-10 Vehicle-mounted air conditioner, control method thereof and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310109077.1A CN116118426A (en) 2023-02-10 2023-02-10 Vehicle-mounted air conditioner, control method thereof and vehicle

Publications (1)

Publication Number Publication Date
CN116118426A true CN116118426A (en) 2023-05-16

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CN202310109077.1A Pending CN116118426A (en) 2023-02-10 2023-02-10 Vehicle-mounted air conditioner, control method thereof and vehicle

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Country Link
CN (1) CN116118426A (en)

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