CN114670595A - Vehicle warm air control method and device, warm air system and vehicle - Google Patents

Vehicle warm air control method and device, warm air system and vehicle Download PDF

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Publication number
CN114670595A
CN114670595A CN202011556849.9A CN202011556849A CN114670595A CN 114670595 A CN114670595 A CN 114670595A CN 202011556849 A CN202011556849 A CN 202011556849A CN 114670595 A CN114670595 A CN 114670595A
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China
Prior art keywords
warm air
control strategy
warm
vehicle
engine
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CN202011556849.9A
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CN114670595B (en
Inventor
魏天伟
穆宇
贾会亚
贾世龙
刘海松
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Great Wall Motor Co Ltd
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Great Wall Motor Co Ltd
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Priority to CN202011556849.9A priority Critical patent/CN114670595B/en
Priority to PCT/CN2021/135078 priority patent/WO2022135104A1/en
Publication of CN114670595A publication Critical patent/CN114670595A/en
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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
    • 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
    • B60H1/04—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/20—Cooling circuits not specific to a single part of engine or machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • 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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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The application discloses vehicle warm air control method, device, warm air system and vehicle, relates to the technical field of automobiles, and the method comprises the following steps: when the vehicle is in a non-flameout state, obtaining the water temperature of the engine; determining a current target warm air control strategy of the vehicle at least according to the corresponding relation between the engine water temperature and the warm air control strategy; and according to the target warm air control strategy, the warm air water path of the vehicle is cut off or started in a circulating mode. The embodiment of the application has the thought principle of 'proper temperature', not only can the engine be kept to work in the most favorable temperature range, but also the maximum matching performance boundary of an air-conditioning warm air system can be given, and the cost control of the air-conditioning system and the performance maintenance of the engine are facilitated.

Description

Vehicle warm air control method and device, warm air system and vehicle
Technical Field
The application relates to the technical field of automobiles, in particular to a vehicle warm air control method and device, a warm air system and a vehicle.
Background
The air-conditioning and heating system is a system for supplying heat to a vehicle compartment. The traditional fuel vehicle introduces cooling liquid of an engine into a warm air core body of an air conditioning warm air system for heat exchange so as to realize the function of heating the whole vehicle.
However, in the prior art, when the engine of the oil-burning vehicle is started, the cooling liquid in the warm air system is always in a circulating state, which has the following problems:
1. when the air conditioner needs to refrigerate at high temperature in summer, the warm air core body generates heat radiation on an evaporator of the air conditioner and in a carriage, and the refrigeration effect is influenced;
2. in winter, the temperature of the engine is slowly raised, and the heating and defrosting effects of the whole vehicle are influenced.
Disclosure of Invention
The embodiment of the application provides a vehicle warm air control method and device, a warm air system and a vehicle, so as to overcome the technical problems.
In order to solve the above problem, an embodiment of the present application discloses a vehicle warm air control method, including:
when the vehicle is in a non-flameout state, obtaining the water temperature of the engine;
determining a current target warm air control strategy of the vehicle at least according to the corresponding relation between the engine water temperature and the warm air control strategy;
and according to the target warm air control strategy, the warm air water path of the vehicle is cut off or opened in a circulating mode.
In an embodiment of the application, the warm air control strategy comprises a warm state control strategy and a non-warm state control strategy; determining a current target warm air control strategy of the vehicle according to at least the corresponding relation between the engine water temperature and the warm air control strategy, wherein the method comprises the following steps:
When the water temperature of the engine is in a first temperature range, determining that the target warm air control strategy is a warm state control strategy;
when the temperature of the engine water is in a second temperature range, determining that the target warm air control strategy is a non-warm state control strategy;
according to the target warm air control strategy, the method for circularly cutting off or starting the warm air water path of the vehicle comprises the following steps:
according to the warm state control strategy, cutting off the circulation of a warm air water path of the vehicle;
or according to the non-warm state control strategy, the warm air water path of the vehicle is cut off or opened in a circulating mode.
In an embodiment of the present application, according to the non-warm state control strategy, the method of cutting off or opening a warm air water path cycle of the vehicle includes:
judging whether the water temperature of the engine is smaller than a preset water temperature alarm temperature threshold value or not according to the non-warm state control strategy;
when the water temperature of the engine is smaller than the temperature threshold value of the water temperature alarm, further acquiring the current environment temperature;
and when the current environment temperature is less than a preset environment temperature threshold value, circularly starting a warm air water path of the vehicle.
In an embodiment of the present application, according to the non-warm state control strategy, the method further includes the steps of:
And when the water temperature of the engine is not less than the temperature threshold value of the water temperature alarm, the circulation of a warm air water path of the vehicle is cut off.
In an embodiment of the present application, when the current ambient temperature is not less than the ambient temperature threshold, according to the non-warm state control strategy, the warm air water path of the vehicle is cut off or opened in a circulating manner, further including:
determining whether an air-conditioning and heating request is received;
when an air-conditioning and warm air request is received, a warm air waterway of the vehicle is opened circularly;
and when the air-conditioning warm air request is not received, the warm air water path of the vehicle is circularly cut off.
In order to solve the above problem, from another aspect of the present application, an embodiment of the present application further discloses a vehicle warm air control apparatus, including:
the temperature obtaining module is used for obtaining the water temperature of the engine when the vehicle is in a non-flameout state;
the target warm air control strategy determining module is used for determining a current target warm air control strategy of the vehicle at least according to the corresponding relation between the engine water temperature and the warm air control strategy;
and the target warm air control strategy execution module is used for cutting off or starting the warm air water path of the vehicle in a circulating manner according to the target warm air control strategy.
In an embodiment of the application, the warm air control strategy comprises a warm state control strategy and a non-warm state control strategy; the target warm air control strategy determination module comprises:
the warm-up state control strategy determining submodule is used for determining that the target warm air control strategy is a warm-up state control strategy when the water temperature of the engine is in a first temperature range;
the non-warm state control strategy determining submodule is used for determining that the target warm air control strategy is a non-warm state control strategy when the water temperature of the engine is in a second temperature range;
the target warm air control strategy execution module comprises:
the warm-up state control strategy execution submodule is used for cutting off the circulation of a warm air water path of the vehicle according to the warm-up state control strategy;
or the non-warm state control strategy execution submodule is used for cutting off or starting the hot air water path circulation of the vehicle according to the non-warm state control strategy.
In an embodiment of the present application, the non-warm state control strategy execution sub-module includes:
the water temperature alarm threshold judgment submodule is used for judging whether the water temperature of the engine is smaller than a preset water temperature alarm temperature threshold according to the non-warm state control strategy;
The current environment temperature obtaining submodule is used for further obtaining the current environment temperature when the water temperature of the engine is smaller than the temperature threshold value of the water temperature alarm;
and the first execution submodule is used for circularly starting a warm air water path of the vehicle when the current environment temperature is less than a preset environment temperature threshold value.
In order to solve the above problem, according to another aspect of the present application, an embodiment of the present application further discloses a warm air system, including:
the engine, the warm air core body,
the warm air inlet pipe and the warm air return pipe are arranged between the engine and the warm air core body, wherein a warm air stop valve is arranged on the warm air inlet pipe;
and the controller is connected with the warm air stop valve and used for executing the vehicle warm air control method according to the embodiment of the application so as to control the warm air stop valve to cut off or open the warm air water path circulation of the vehicle.
In order to solve the above problem, from a further aspect of the present application, an embodiment of the present application further discloses a vehicle, including at least:
the warm air system according to the embodiment of the application.
The embodiment of the application has the following advantages:
when the vehicle is in a non-flameout state, the water temperature of the engine is obtained; determining a current target warm air control strategy of the vehicle at least according to the corresponding relation between the engine water temperature and the warm air control strategy; and according to the target warm air control strategy, the warm air water path of the vehicle is cut off or opened in a circulating manner, so that the following functions can be realized on the basis of meeting the function of air-conditioning heating and defrosting: 1. when the engine is in a warm-up state in winter, the warm-up speed can be increased by cutting off the circulation of the warm air water path; 2. when the water temperature of the engine is too high, the water flow of the heat dissipation circulation of the engine can be indirectly improved by cutting off the circulation of the warm air water path, so that the water temperature of the engine is reduced; 3. when the ambient temperature is too high, the warm air core body can be prevented from heat leakage by cutting off the warm air water path circulation. The embodiment of the application has the thought principle of 'proper temperature', can keep the engine to work in the most favorable temperature range, can provide the maximum matching performance boundary of an air-conditioning warm air system, and is favorable for cost control of the air-conditioning system and performance maintenance of the engine.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart illustrating steps of a method for controlling warm air of a vehicle according to an embodiment of the present application;
FIG. 2 is a logic diagram of a warm air control strategy according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a heating system according to an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a vehicle according to an embodiment of the present disclosure;
fig. 5 is a functional block diagram of a vehicle heater control device according to an embodiment of the present application.
Description of reference numerals:
301-an engine, 302-a warm air core body, 303-a warm air inlet pipe, 304-a warm air return pipe, 305-a warm air stop valve and 306-a controller.
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.
To facilitate a further understanding of the present application, a detailed analysis of the technical problems of the present application is first made:
when the automobile engine normally operates, a certain working temperature is required, the normal operation and performance exertion of the engine are not facilitated due to overhigh or overlow temperature, and on the other hand, the conventional air cooling of heat generated by the operation of the engine hardly meets the requirement, so that the automobile engine widely adopts a water-cooling heat conduction design, namely, a cooling system is arranged in the engine. The role of the cooling system is to keep the engine operating in the most favorable temperature range in order to increase the power of the engine and reduce engine wear and fuel consumption. The engine water temperature is generally 90 ℃ optimal. After the engine is started, heat energy can be generated to heat the cooling liquid in the internal cooling system of the engine, so that the water temperature of the engine reaches a better temperature. Therefore, in order to fully utilize the heat energy of the cooling liquid after the engine is started, the traditional fuel vehicle introduces the cooling liquid of the engine into a warm air core body of an air conditioner for heat exchange so as to realize the function of heating the whole vehicle, namely, a warm air water path circulation is established between the engine and the warm air core body, and the warm air water path circulation can convey the heated cooling liquid into the warm air core body so as to realize the heating in a vehicle compartment.
In practice, when the engine needs to be warmed up quickly, the heated coolant in the engine is always in a circulation state supplied to the warm air core after the engine is started, namely, the warm air waterway is in a continuous opening state, so that the amount of water to be heated after the engine is started is far larger than that of the coolant in the engine, the engine cannot be warmed up quickly to reach the optimal water temperature, certain influence is caused on the performance of the engine and the use of a vehicle, and particularly in winter, the temperature of the engine is slowly raised, and the heating and defrosting effects of the whole vehicle are influenced. And when the air conditioner needs to refrigerate in summer, the warm air core body influences the refrigeration effect on the evaporator of the air conditioner and the radiation in the vehicle due to the fact that the warm air water path is in the continuous opening state.
In view of the above technical problems, the embodiment of the present application adds a warm air stop valve to a warm air water path cycle of a warm air system, and provides a vehicle warm air control method, which can adaptively cut off or open the warm air water path cycle of a vehicle by controlling the warm air stop valve according to at least an engine water temperature when the vehicle is in a non-flameout state, so as to realize the following functions on the basis of satisfying the function of air-conditioning heating and defrosting: 1. when the engine is in a warm-up state in winter, the warm-up speed can be increased by cutting off the circulation of the warm air water path; 2. when the water temperature of the engine is too high, the water flow of the heat dissipation circulation of the engine can be indirectly improved by cutting off the circulation of the warm air water path, so that the water temperature of the engine is reduced; 3. when the ambient temperature is too high, the warm air core body can be prevented from heat leakage by cutting off the warm air water path circulation. The embodiment of the application has the thought principle of 'proper temperature', can keep the engine to work in the most favorable temperature range, can provide the maximum matching performance boundary of an air-conditioning warm air system, and is favorable for cost control of the air-conditioning system and performance maintenance of the engine.
Referring to fig. 1, a flowchart illustrating steps of a method for controlling warm air of a vehicle according to an embodiment of the present application is shown, where the method may specifically include the following steps:
step S101, when a vehicle is in a non-flameout state, obtaining the water temperature of an engine;
step S102, determining a current target warm air control strategy of the vehicle at least according to the corresponding relation between the engine water temperature and the warm air control strategy;
and step S103, according to the target warm air control strategy, the warm air water path of the vehicle is cut off or opened in a circulating mode.
In the embodiment of the present application, the non-key-off state refers to the vehicle being powered on and the engine being in a starting state.
The engine water temperature refers to the temperature of the coolant inside the engine.
The warm air water channel circulation of the vehicle refers to a water circulation channel through which cooling liquid heated by an engine in the engine enters a warm air core body, and returns to an engine body after heat exchange is carried out in the warm air core body.
In consideration of the fact that the temperature of an automobile engine is different under different working conditions and different environments, the warm air control strategy is provided for keeping the engine to work in the most favorable temperature range.
The present application establishes in advance a correspondence relationship between a warm air control strategy and an engine water temperature, which may be stored in the system as an execution program. After the system determines the water temperature of the engine, a target warm air control strategy corresponding to the current water temperature of the engine can be inquired, and then the warm air water path of the vehicle is cut off or opened according to the target warm air control strategy and the temperature.
Since the warm air control strategy is different based on the temperature of the engine water, the temperature of the engine water is closely related to the current working condition of the engine and the current ambient temperature. Therefore, the warm air control strategy provided by the application is also closely related to the current working condition of the engine and the current ambient temperature. Firstly, considering the current working condition of the engine, in an embodiment of the present application, the warm air control strategy includes a warm state control strategy and a non-warm state control strategy, and the corresponding relationship between the engine water temperature and the warm air control strategy in step S102 is as follows:
when the temperature of the engine water is in a first temperature range (T1 ≦ T), determining that the target warm-air control strategy is a warm-state control strategy;
when the engine water temperature is in a second temperature range (> T1), determining the target warm-air control strategy to be a non-warm-state control strategy.
In this application, the warm-up, also called engine heat engine, the vehicle operation after the engine warm-up can effectively reduce carbon emission, also is favorable to maintaining the performance of engine and vehicle. When the vehicle just starts, the water temperature of the engine is low, the engine is in a warm state, therefore, a warm state control strategy is formulated, and the warm state control strategy is preferentially executed under the condition, so that the water temperature of the engine quickly reaches the optimal water temperature. And when the engine is in a non-warm state, the engine is normally preheated, and the water temperature range of normal operation is reached. However, the situation in the actual use process after the engine is warmed up is complex, for example, the situation can relate to the outside environment temperature and the use requirement of a user in the vehicle on an air conditioning system, so that a non-warm state control strategy is designed, and the warm air water path circulation of the vehicle is cut off or opened according to the non-warm state control strategy so as to adapt to the use requirement of the water temperature of the engine or the user in the vehicle on the air conditioning heating.
According to the corresponding relation between the engine water temperature and the warm air control strategy, in the scheme of the application, after the engine is started, the system can continuously monitor the engine water temperature, judge whether the engine water temperature is larger than a preset warm-up temperature threshold value, namely judge whether the engine water temperature is in a first temperature range or a second temperature range, and determine whether the vehicle executes a non-warm-up state control strategy or a warm-up state control strategy currently. Specifically, a warm-up temperature threshold value (T1) is preset, when the engine water temperature is less than or equal to the warm-up temperature threshold value, namely the engine water temperature is in a first temperature range (0 < the engine water temperature is less than or equal to T1), the engine is still in a warm-up state, the target warm-up control strategy is determined to be a warm-up state control strategy, and the vehicle executes the warm-up state control strategy. When the engine water temperature is greater than the warm-up temperature threshold value, namely the engine water temperature is in a second temperature range (the engine water temperature is greater than T1), the engine is indicated to be in an un-warm state, the target warm air control strategy is determined to be an un-warm state control strategy at the moment, and the vehicle executes the un-warm state control strategy.
After the target warm air control strategy is determined, the execution steps of step S103 are as follows:
According to the warm-up state control strategy, the warm air waterway of the vehicle is cut off in a circulating manner;
or according to the non-warm state control strategy, the warm air water path of the vehicle is cut off or opened in a circulating mode.
In the warm-up state control strategy provided by the embodiment of the application, the warm air water path circulation of the vehicle is cut off, the flow of the cooling liquid flowing to the warm air core body from the engine is reduced, the flow of the cooling liquid flowing to the engine in the warm air core body is also reduced, the flow of the cooling liquid needing to be heated by the engine body is reduced, the water temperature in the engine body is rapidly increased until the water temperature is greater than a warm-up temperature threshold value, and the warm-up process can be rapidly completed.
And according to the non-warm state control strategy, the warm air water path of the vehicle is cut off or opened in a circulating mode, and the method comprises the following scheme:
judging whether the water temperature of the engine is smaller than a preset water temperature alarm temperature threshold value or not according to the non-warm state control strategy;
when the water temperature of the engine is smaller than the temperature threshold value of the water temperature alarm, further acquiring the current environment temperature;
and when the current environment temperature is smaller than a preset environment temperature threshold value, circularly starting a warm air water path of the vehicle.
In the embodiment of the present application, the current ambient temperature refers to the external ambient temperature at which the vehicle is currently located, and specifically refers to the ambient temperature around the engine.
When the engine is in a non-warming state, namely the engine finishes a warming process, the engine heats in the working process, the water temperature in the engine continues to rise, and in order to avoid the influence of overhigh water temperature on the performance of the engine, a water temperature alarm temperature threshold value is set. If the water temperature of the engine is less than the temperature threshold value (T2) of the water temperature alarm, namely the water temperature of the engine is T1 < the water temperature of the engine < T2, the influence of the current environment temperature on an execution strategy under a non-warm state control strategy is further considered, when the current environment temperature is less than the preset environment temperature threshold value (T3), the system determines that the current environment temperature is low, a user possibly has an air-conditioning heating demand, a warm air water path of the vehicle is circularly opened, and the water temperature is conveyed to a warm air core body.
In practice, the engine is connected with the heat dissipation structure, the warm air core and the vehicle water pump at the same time, after coolant in the vehicle water pump flows into the engine, the coolant in the engine flows into the heat dissipation structure and the warm air core respectively, namely, a coolant loop is formed between the engine and the heat dissipation structure, and the warm air loop mentioned in the application is formed between the engine and the warm air core. When the water temperature of the engine exceeds the temperature threshold value of the water temperature alarm, if the hot air water path is still circularly opened to keep supplying heat to the hot air core, a shunt is added under the condition of the same water supply amount of a vehicle water pump, so that the water flow between the engine and the heat dissipation structure is reduced, the heat dissipation speed of the engine is reduced, and the engine cannot be kept to work in the most favorable temperature range. Therefore, the scheme proposed by the application for cutting off or opening the circulation of the warm air water path of the vehicle according to the non-warm state control strategy further comprises the following steps:
And when the water temperature of the engine is not less than the temperature threshold value of the water temperature alarm, the circulation of a warm air water path of the vehicle is cut off.
When the engine is in a non-warm state and the water temperature of the engine is not smaller than the temperature threshold value for water temperature alarm, namely the water temperature of the engine is not smaller than T2, the flow of cooling liquid flowing from the engine to the warm air core body can be reduced by cutting off the circulation of the warm air water path of the vehicle, so that the cooling speed of the water temperature of the engine is accelerated, and the technical problem is solved.
The influence of the current environment temperature on the execution strategy under the non-warm state control strategy is considered, when the current environment temperature is not smaller than the environment temperature threshold value, the warm air water path circulation is not closed, at the moment, according to the provided non-warm state control strategy, the system execution steps are as follows:
determining whether an air-conditioning and heating request is received;
when an air-conditioning and warm air request is received, a warm air waterway of the vehicle is opened circularly;
and when the air-conditioning warm air request is not received, the warm air water path of the vehicle is cut off in a circulating way.
According to the method and the device, the will of the user to the air-conditioning heating is further considered, whether the air-conditioning hot air request is received or not is judged to decide to open or close the hot air water path in a circulating mode, and the execution mode is not only 'suitable for heating due to temperature', but also more humanized. Specifically, the method comprises the following steps:
If the system receives an air-conditioning warm air request, the warm air waterway of the vehicle is circularly opened, so that the user can still normally use the air-conditioning warm air function when the temperature of the external environment is higher.
If the system does not receive the air-conditioning warm air request, the warm air water path of the vehicle is cut off in a circulating way, and the warm air core body can be prevented from leaking heat when the ambient temperature is too high.
In summary, the present application describes the warm air control strategy in detail, and as shown in fig. 2, the present application is a logic diagram of the warm air control strategy according to the embodiment of the present application. In fig. 2, the opening or closing of the warm air water circuit circulation of the vehicle is realized by a warm air stop valve arranged on the pipeline, the mentioned warm-up temperature threshold is T1 in fig. 2, the temperature threshold of the water temperature alarm is T2 in fig. 2, and the environment temperature threshold is T3 in fig. 2.
Based on the same inventive concept, referring to fig. 3, an embodiment of the present application provides a schematic structural diagram of a warm air system, where the system may include:
the air conditioner is composed of an engine 301, a warm air core 302,
a warm air inlet pipe 303 and a warm air return pipe 304 which are arranged between the engine 301 and the warm air core 302, wherein a warm air stop valve 305 is arranged on the warm air inlet pipe 303;
And a controller 306 connected to the warm air stop valve 305 and configured to execute the vehicle warm air control method according to the embodiment of the present disclosure to control the warm air stop valve 305 to cut off or open the warm air water circuit circulation of the vehicle.
The controller may be controlled by an engine Control unit ecu (engine Control unit). The runner that engine 301, warm braw core 302, warm braw inlet tube 303 and warm braw wet return 304 are constituteed together has constituted the warm braw water route circulation of this application embodiment, and the coolant liquid after being heated by engine 301 in engine 301 this body promptly gets into warm braw core 302 through warm braw inlet tube 303, goes back to the engine body through warm braw wet return 304 after carrying out the heat exchange in warm braw core 302. Referring to the structure of fig. 3, the warm air stop valve 305 is provided on the warm air inlet pipe 303, and the warm air waterway can be cut off by closing the warm air stop valve 305; by opening the warm air stop valve 305, the warm air waterway can be opened circularly. The warm air stop valve 305 is a solenoid valve, and can be connected to the controller through a wire or wirelessly to receive a control signal from the controller 306, so as to execute the vehicle warm air control method according to the embodiment of the present application. Regarding the vehicle warm air control method, reference is made to the steps and principles shown in fig. 1 and fig. 2, and the detailed description of the present application is omitted.
The warm air system of this application embodiment, when the vehicle is in the non-flameout state, can be according to engine water temperature and current ambient temperature, cut off or open the warm air inlet tube 303 of vehicle through control warm air stop valve 305 self-adaptation to this can be on satisfying the function basis of the defrosting of air conditioner heating, realizes following function: 1. when the engine is in a warm-up state, the warm-up speed can be increased by cutting off the circulation of the warm air water path; 2. when the water temperature of the engine is too high, the water flow of the heat dissipation circulation of the engine can be indirectly improved by cutting off the circulation of the warm air water path, so that the water temperature of the engine is reduced; 3. when the ambient temperature is too high, the warm air core body can be prevented from heat leakage by cutting off the warm air water path circulation.
Based on the same inventive concept, referring to fig. 4, an embodiment of the present application provides a schematic structural diagram of a vehicle, where the vehicle at least may include:
the warm air system according to the embodiment of the application.
The vehicle of the embodiment of the application is provided with the warm air system as shown in fig. 3, and the maximum matching performance boundary of the vehicle air-conditioning warm air system can be provided based on the thought principle of 'suitable temperature', so that the cost control of the air-conditioning system and the performance maintenance of an engine are facilitated, and the running performance of the whole vehicle is improved.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the embodiments are not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the embodiments. Further, those skilled in the art will also appreciate that the embodiments described in the specification are presently preferred and that no particular act is required of the embodiments of the application.
Based on the same inventive concept, referring to fig. 5, the embodiment of the present application further provides a functional module schematic diagram of a vehicle warm air control device, where the device may include the following modules:
the temperature obtaining module 501 is used for obtaining the water temperature of the engine when the vehicle is in a non-flameout state;
a target warm air control strategy determination module 502, configured to determine a current target warm air control strategy of the vehicle according to at least a correspondence between the engine water temperature and a warm air control strategy;
and a target warm air control strategy executing module 503, configured to cut off or start a warm air water path of the vehicle in a circulating manner according to the target warm air control strategy.
In an embodiment of the application, the warm air control strategy comprises a warm state control strategy and a non-warm state control strategy; the target warm air control strategy determination module 502 includes:
the warm-up state control strategy determining submodule is used for determining that the target warm air control strategy is a warm-up state control strategy when the water temperature of the engine is in a first temperature range;
the non-warm state control strategy determining submodule is used for determining that the target warm air control strategy is a non-warm state control strategy when the water temperature of the engine is in a second temperature range;
the target warm air control strategy execution module 503 includes:
the warm-up state control strategy execution submodule is used for cutting off the circulation of a warm air water path of the vehicle according to the warm-up state control strategy;
or the non-warm state control strategy execution submodule is used for cutting off or starting the hot air water path circulation of the vehicle according to the non-warm state control strategy.
In an embodiment of the present application, the non-warm state control strategy execution sub-module includes:
the water temperature alarm threshold judgment submodule is used for judging whether the water temperature of the engine is smaller than a preset water temperature alarm temperature threshold according to the non-warm state control strategy;
The current environment temperature obtaining submodule is used for further obtaining the current environment temperature when the water temperature of the engine is smaller than the temperature threshold value of the water temperature alarm;
and the first execution submodule is used for circularly starting a warm air water path of the vehicle when the current environment temperature is less than a preset environment temperature threshold value.
In an embodiment of the application, the target warm air control strategy execution module 503 may further include:
and the second execution submodule is used for cutting off the circulation of a warm air water path of the vehicle when the water temperature of the engine is not less than the temperature threshold value of the water temperature alarm.
In an embodiment of the application, when the current ambient temperature is not less than the ambient temperature threshold, the non-warm-up state control strategy execution sub-module may further include:
the air conditioner warm air request receiving determining submodule is used for determining whether an air conditioner warm air request is received;
the third execution submodule is used for circularly starting a warm air water path of the vehicle when receiving an air-conditioning warm air request;
and the fourth execution submodule is used for cutting off the circulation of a warm air water path of the vehicle when the air-conditioning warm air request is not received.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
It should also be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application. Moreover, relational terms such as "first" and "second" are 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 or should not be construed as indicating or implying relative importance. 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 terminal 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 terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or terminal equipment comprising the element.
The technical solutions provided in the present application are described in detail above, and specific examples are applied herein to explain the principles and embodiments of the present application, and the descriptions of the above examples are only used to help understanding the present application, and the content of the present specification should not be construed as limiting the present application. While various modifications of the illustrative embodiments and applications will be apparent to those skilled in the art based upon this disclosure, it is not necessary or necessary to exhaustively enumerate all embodiments, and all obvious variations and modifications can be resorted to, falling within the scope of the disclosure.

Claims (10)

1. A warm air control method for a vehicle, characterized by comprising:
when the vehicle is in a non-flameout state, obtaining the water temperature of an engine;
determining a current target warm air control strategy of the vehicle at least according to the corresponding relation between the engine water temperature and the warm air control strategy;
and according to the target warm air control strategy, the warm air water path of the vehicle is cut off or opened in a circulating mode.
2. The method of claim 1, wherein the warm-air control strategy comprises a warm-state control strategy and a non-warm-state control strategy; determining a current target warm air control strategy of the vehicle according to at least the corresponding relation between the engine water temperature and the warm air control strategy, wherein the method comprises the following steps:
When the water temperature of the engine is in a first temperature range, determining that the target warm air control strategy is a warm state control strategy;
when the water temperature of the engine is in a second temperature range, determining that the target warm air control strategy is a non-warm state control strategy;
according to the target warm air control strategy, the method for circularly cutting off or starting the warm air water path of the vehicle comprises the following steps:
according to the warm-up state control strategy, the warm air waterway of the vehicle is cut off in a circulating manner;
or according to the non-warm state control strategy, the warm air water path of the vehicle is cut off or started in a circulating mode.
3. The method of claim 2, wherein cycling off or on a warm air water circuit of the vehicle in accordance with the non-warm state control strategy comprises:
judging whether the water temperature of the engine is smaller than a preset water temperature alarm temperature threshold value or not according to the non-warm state control strategy;
when the water temperature of the engine is smaller than the temperature threshold value of the water temperature alarm, further acquiring the current environment temperature;
and when the current environment temperature is less than a preset environment temperature threshold value, circularly starting a warm air water path of the vehicle.
4. The method of claim 3, wherein cycling a warm air water path of the vehicle off or on according to the non-warm state control strategy further comprises:
and when the water temperature of the engine is not less than the temperature threshold value of the water temperature alarm, the circulation of a warm air water path of the vehicle is cut off.
5. The method of claim 3, wherein when the current ambient temperature is not less than the ambient temperature threshold, cycling a warm air water path of the vehicle off or on in accordance with the non-warm state control strategy, further comprising:
determining whether an air conditioner warm air request is received;
when an air-conditioning warm air request is received, circularly opening a warm air water path of the vehicle;
and when the air-conditioning warm air request is not received, the warm air water path of the vehicle is cut off in a circulating way.
6. A warm air control device for a vehicle, characterized by comprising:
the temperature obtaining module is used for obtaining the water temperature of the engine when the vehicle is in a non-flameout state;
the target warm air control strategy determining module is used for determining a current target warm air control strategy of the vehicle at least according to the corresponding relation between the engine water temperature and the warm air control strategy;
And the target warm air control strategy execution module is used for cutting off or starting the warm air water path of the vehicle in a circulating manner according to the target warm air control strategy.
7. The apparatus of claim 6, wherein the warm-air control strategy comprises a warm-state control strategy and an un-warm-state control strategy; the target warm air control strategy determination module comprises:
the warm-up state control strategy determining submodule is used for determining that the target warm air control strategy is a warm-up state control strategy when the water temperature of the engine is in a first temperature range;
the non-warm state control strategy determining submodule is used for determining that the target warm air control strategy is a non-warm state control strategy when the water temperature of the engine is in a second temperature range;
the target warm air control strategy execution module comprises:
the warm-up state control strategy execution submodule is used for cutting off the circulation of a warm air water path of the vehicle according to the warm-up state control strategy;
or the non-warm state control strategy execution submodule is used for cutting off or starting the hot air water path circulation of the vehicle according to the non-warm state control strategy.
8. The apparatus of claim 7, wherein the non-warmed-state control strategy execution sub-module comprises:
The water temperature alarm threshold judgment submodule is used for judging whether the water temperature of the engine is smaller than a preset water temperature alarm temperature threshold according to the non-warm state control strategy;
the current environment temperature obtaining submodule is used for further obtaining the current environment temperature when the water temperature of the engine is smaller than the temperature threshold value of the water temperature alarm;
and the first execution submodule is used for circularly starting a warm air water path of the vehicle when the current environment temperature is less than a preset environment temperature threshold value.
9. A heater system, comprising:
an engine (301), a warm air core body (302),
the warm air inlet pipe (303) and the warm air return pipe (304) are arranged between the engine (301) and the warm air core body (302), wherein a warm air stop valve (305) is arranged on the warm air inlet pipe (303);
a controller (306) connected to the warm air stop valve (305) for executing the vehicle warm air control method according to any one of claims 1 to 5, so as to control the warm air stop valve (305) to cut off or open the warm air water circuit circulation of the vehicle.
10. A vehicle, characterized by comprising at least:
the heating system of claim 9.
CN202011556849.9A 2020-12-24 2020-12-24 Vehicle warm air control method and device, warm air system and vehicle Active CN114670595B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116080351A (en) * 2023-02-09 2023-05-09 广州汽车集团股份有限公司 Vehicle control method, device, terminal and medium
CN116080351B (en) * 2023-02-09 2024-05-10 广州汽车集团股份有限公司 Vehicle control method, device, terminal and medium

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116330925B (en) * 2023-02-17 2024-02-13 广州汽车集团股份有限公司 Vehicle control method, device, terminal and medium

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003035142A (en) * 2001-07-26 2003-02-07 Mitsubishi Motors Corp Cooling water control device for engine
CN107461255A (en) * 2017-09-26 2017-12-12 安徽江淮汽车集团股份有限公司 A kind of engine-cooling system
CN110450603A (en) * 2019-07-15 2019-11-15 中国第一汽车股份有限公司 Warm wind control method, device, entire car controller and vehicle
CN111788081A (en) * 2018-07-24 2020-10-16 株式会社电装 Air conditioner for vehicle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107869417A (en) * 2017-11-10 2018-04-03 中汽研（天津）汽车工程研究院有限公司 A kind of vehicle motor rapid warming-up system
CN109026335B (en) * 2018-08-23 2020-09-22 台州滨海吉利发动机有限公司 Thermal management control method and system for engine
CN109611255B (en) * 2018-11-30 2020-01-21 安徽江淮汽车集团股份有限公司 Finished automobile rapid warm-up thermal management system and control method thereof
CN210013750U (en) * 2019-04-19 2020-02-04 浙江吉利控股集团有限公司 Waterway circulation system of engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003035142A (en) * 2001-07-26 2003-02-07 Mitsubishi Motors Corp Cooling water control device for engine
CN107461255A (en) * 2017-09-26 2017-12-12 安徽江淮汽车集团股份有限公司 A kind of engine-cooling system
CN111788081A (en) * 2018-07-24 2020-10-16 株式会社电装 Air conditioner for vehicle
CN110450603A (en) * 2019-07-15 2019-11-15 中国第一汽车股份有限公司 Warm wind control method, device, entire car controller and vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116080351A (en) * 2023-02-09 2023-05-09 广州汽车集团股份有限公司 Vehicle control method, device, terminal and medium
CN116080351B (en) * 2023-02-09 2024-05-10 广州汽车集团股份有限公司 Vehicle control method, device, terminal and medium

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