CN110962542A - Cold start control method and system for automatic air conditioner of automobile - Google Patents
Cold start control method and system for automatic air conditioner of automobile Download PDFInfo
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- CN110962542A CN110962542A CN201911356665.5A CN201911356665A CN110962542A CN 110962542 A CN110962542 A CN 110962542A CN 201911356665 A CN201911356665 A CN 201911356665A CN 110962542 A CN110962542 A CN 110962542A
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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
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Abstract
The invention discloses a cold start control method of an automatic air conditioner of an automobile.A controller of the automatic air conditioner detects control parameters of an air conditioner mode after an engine is ignited and switches the controller of the automatic air conditioner to operate in an automatic operation state mode or a cold start state mode according to the control parameters of the air conditioner mode, wherein the automatic operation state mode is that the controller of the automatic air conditioner automatically controls the operation of the air conditioner according to the temperature in the automobile; and under the cold starting state mode, the air conditioner controller controls the air conditioner to operate in a window blowing mode. According to the invention, through improving the control logic of the automatic air conditioner controller, after the engine is ignited and started, the cold start operation mode is operated firstly under the condition that the engine is satisfied, so that the discomfort caused by directly blowing cold air in the air duct to a human body in the mode of directly operating the automatic operation state is avoided, and the experience of the automatic air conditioner is improved.
Description
Technical Field
The invention relates to the field of automobile air conditioners, in particular to a cold start control method and a cold start control system of an automatic automobile air conditioner.
Background
Along with the improvement of the living standard of people, the automobile is not only required by a travel vehicle, but also the requirement on the comfort of the automobile is greatly improved. The automatic air conditioner that present many motorcycle types configured just opens air conditioning system on fire when ambient temperature is lower, and air conditioning system's amount of wind can directly blow positions such as driver and crew's feet, head, gives other people very not good experience and experience, and especially when the temperature is lower, cold wind in the wind channel can directly blow on the people's health, causes the air conditioner to experience the worsen.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a cold start control method and a cold start control system of an automatic air conditioner of an automobile, which are used for improving the start control strategy of the automatic air conditioner of the prior art so as to improve the user experience and avoid the situation that cold air is directly blown to a human body when the automatic air conditioner is just started.
In order to achieve the purpose, the invention adopts the technical scheme that: a cold start control method of an automatic air conditioner of an automobile comprises the steps that after an engine is ignited, an automatic air conditioner controller detects air conditioner mode control parameters and switches the automatic air conditioner controller to operate in an automatic operation state mode or a cold start state mode according to the air conditioner mode control parameters, wherein the automatic operation state mode is that the automatic air conditioner controller automatically controls the operation of the air conditioner according to relevant parameters such as the temperature in the automobile, the temperature outside the automobile, sunlight parameters and the speed of the automobile; and under the cold starting state mode, the air conditioner controller controls the air conditioner to operate in a window blowing mode.
The air-conditioning mode control parameters include: vehicle outside temperature data and engine water temperature data.
The automatic air conditioner controller switching the operation mode according to the air conditioning mode control parameter includes: and detecting the temperature outside the vehicle and the water temperature of the engine after the engine is ignited, and when the temperature outside the vehicle is lower than a set first temperature outside the vehicle and the water temperature of the engine is lower than a first set water temperature, controlling the automatic air-conditioning controller to enter a cold start state mode, and controlling the blowing mode to run to a window blowing mode and control the air volume of the air blower by the automatic air-conditioning controller in the mode.
And in the cold starting state mode, the automatic air conditioner controller monitors the temperature data outside the vehicle and the temperature data of the engine in real time, and when the temperature data outside the vehicle is greater than a second outside temperature threshold value or the temperature of the engine water is greater than a second set water temperature, the automatic air conditioner controller exits the cold starting state mode and enters the automatic running state mode.
The first vehicle-outside temperature threshold value is 10 ℃, and the first set water temperature is 50 ℃.
The second outside-vehicle temperature threshold is 15 ℃, and the second set water temperature is 80 ℃.
The cold start control system of the automatic air conditioner of the car, is used for operating the control method, the system includes automatic air conditioner controller, outer temperature sensor of car, engine water temperature sensor, engine ignition state detection module, car air conditioner, outer temperature sensor of car, engine water temperature sensor are connected with engine controller, and engine water temperature signal, engine ignition signal transmit for air conditioner controller through the CAN bus, the output and the car air conditioner of automatic air conditioner controller are connected, the running mode that automatic air conditioner controller controlled automatic air conditioner controller according to engine water temperature, outer temperature of car of automatic air conditioner controller.
The operation modes of the automatic air conditioner controller include a cold start state mode and an automatic operation state mode.
The invention has the advantages that: through improving the control logic of automatic air conditioner controller, after the engine ignition starts, the cold start running mode of operation is operated under the satisfied condition earlier, avoids under the direct operation automatic running state mode, and the cold wind in the wind channel directly blows the uncomfortable sense that leads to the fact to the human body, has improved automatic air conditioner's experience.
Drawings
The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:
fig. 1 is a schematic diagram of a cold start control system of an automatic air conditioner for a vehicle according to the present invention.
Detailed Description
The following description of preferred embodiments of the invention will be made in further detail with reference to the accompanying drawings.
As shown in fig. 1, in a cold start control method of an automatic air conditioner of an automobile, after an engine is ignited, an automatic air conditioner controller detects an air conditioner mode control parameter and switches the automatic air conditioner controller to operate in an automatic operation state mode or a cold start state mode according to the air conditioner mode control parameter, wherein the automatic operation state mode is that the automatic air conditioner controller automatically controls the operation of the air conditioner according to the temperature in the automobile; in the cold start state mode, the air conditioner controller controls the air conditioner to operate in a window blowing mode. Wherein:
the air-conditioning mode control parameters include: the external temperature data and the engine water temperature data, the automatic air-conditioning controller switches the operation mode according to the air-conditioning mode control parameters, and the automatic air-conditioning controller comprises: and detecting data of the temperature outside the vehicle and the water temperature of the engine after the engine is ignited, and when the temperature outside the vehicle is lower than set 10 ℃ and the water temperature of the engine is lower than 50 ℃, controlling the automatic air-conditioning controller to enter a cold start state mode, and in the mode, controlling the blowing mode to operate to a window blowing mode and controlling the air volume of the air blower by the automatic air-conditioning controller, so that the air volume of the air blower is limited to be below 25% of the total air volume.
And in the cold start state mode, the automatic air conditioner controller monitors the temperature data outside the automobile and the temperature data of the engine in real time, and when the temperature data inside the automobile and the temperature data outside the automobile are higher than 15 ℃ or the temperature of the engine water is higher than 80 ℃, the automatic air conditioner controller exits the cold start state mode and enters the automatic running state mode. The automatic operation state mode refers to that the automatic air conditioner controller automatically adjusts the blowing mode, the air volume, the internal and external circulation and the compressor according to the set temperature, the external temperature, the internal temperature, the external temperature, the vehicle speed and other relevant signals to keep the internal temperature at the comfortable temperature set by the driver and the passengers.
The principle of the cold start control method of the automatic air conditioner comprises the following steps: after the ignition of the engine is started, the temperature outside the vehicle is firstly detected to be low, and the temperature of the engine is detected to be low, at the moment, if the air conditioner is directly controlled to adjust the temperature, two defects exist: 1. after the direct start, the air in the air duct is directly blown out at a lower temperature and then directly blown to a human body in a cold air mode to cause discomfort of the human body; 2. the water temperature of the engine does not reach the set air conditioner starting water temperature, and the load of the engine is influenced. When the temperature is detected to be in a low-temperature state, the air conditioner is firstly controlled to work in a window blowing mode and the blowing air quantity of the air blower is controlled, the uncomfortable feeling of a human body caused by direct blowing of cold air when the air conditioner is just started can be avoided, the engine can be started after the water temperature of the engine reaches a certain temperature, the engine can be protected, and the service life is prolonged.
The hardware of the cold start control method for operating the automatic air conditioner comprises an automatic air conditioner controller, an external temperature sensor and an automobile air conditioner, wherein an engine water temperature sensor is connected with an engine controller, an engine water temperature signal and an engine ignition signal are transmitted to the air conditioner controller through a CAN bus, the output end of the automatic air conditioner controller is connected with the automobile air conditioner, and the automatic air conditioner controller controls the operation mode of the automatic air conditioner controller according to the engine water temperature and the external temperature.
The operation modes of the automatic air conditioner controller include a cold start state mode and an automatic operation state mode. The operation of the automobile air conditioner is controlled by the cold starting state mode or the automatic operation state mode of the automatic air conditioner controller, so that when the automobile is started suddenly in a cold environment, discomfort caused by direct cold wind blowing to a human body is prevented. And under the cold starting state mode, the automatic air conditioner controller controls the automobile air conditioner to operate in the window blowing mode and controls the air volume of the air blower to be 25% of the total air volume. In the automatic operation mode, the automatic air conditioner controller automatically adjusts the blowing mode, the air volume, the internal and external circulation and the compressor according to the set temperature, the external temperature, the internal temperature, the sunlight value, the vehicle speed and other relevant signals to keep the internal temperature at the comfortable temperature set by the driver and the passengers.
The scheme of this application is to at present when ambient temperature is lower, when driver and crew just got on the bus, just open air conditioning system at once, and cold wind can directly blow on driver and crew, experiences and feels fairly poor. In order to solve the problem, the scheme of the application adopts: after the engine is ignited, the air conditioning system is started, the software of the automatic air conditioning controller is reset to start timing, the external temperature is less than 10 ℃ in 200S, the water temperature of the engine is less than 50 ℃, the automatic air conditioning controller enters a cold start state, the blowing mode is operated to the window blowing mode, and the air volume of the air blower is limited to 25%. And when the external temperature is higher than 15 ℃ or the water temperature of the engine rises to 80 ℃, the air conditioner controller exits from the cold starting state and returns to the AUTO running state. Therefore, cold air can be prevented from directly blowing to feet and heads of people, and the rising of the water temperature of the engine can be accelerated on the premise of ensuring the comfort degree of drivers and passengers, so that the water temperature of the engine can reach the optimal temperature range as soon as possible. The strategy can solve the problem of uncomfortable feeling brought to people by starting the automatic air conditioner when a driver and a passenger get on the vehicle just now in a low-temperature environment.
It is clear that the specific implementation of the invention is not restricted to the above-described embodiments, but that various insubstantial modifications of the inventive process concept and technical solutions are within the scope of protection of the invention.
Claims (8)
1. A cold start control method of an automatic air conditioner of an automobile is characterized in that: after the engine is ignited, under the condition that the automatic air conditioner is started, the automatic air conditioner controller detects air conditioner mode control parameters and switches the automatic air conditioner controller to operate in an automatic operation state mode or a cold start state mode according to the air conditioner mode control parameters, wherein the automatic operation state mode is that the automatic air conditioner controller automatically adjusts a blowing mode, air volume, internal and external circulation, a compressor and the like according to parameters such as the temperature set in the automobile, the temperature outside the automobile, a sunlight value and the speed of the automobile to ensure the comfort in the automobile; and under the cold start state mode, the air conditioner controller controls the air conditioner to operate in a window blowing mode, the air volume is limited to be below 25% of the total air volume, and the rest states are automatically adjusted.
2. The cold start control method of an automatic air conditioner for vehicles according to claim 1, wherein: the cold start control parameters include: vehicle outside temperature data and engine water temperature data.
3. The cold start control method of an automatic air conditioner for vehicles as claimed in claim 2, wherein: the automatic air conditioner controller switching the operation mode according to the relevant control parameter includes: and detecting the temperature outside the vehicle and the water temperature of the engine after the engine is ignited, and when the temperature outside the vehicle is lower than a set first temperature outside the vehicle and the water temperature of the engine is lower than a first set water temperature, controlling the automatic air-conditioning controller to enter a cold start state mode, and controlling the blowing mode to run to a window blowing mode and control the air volume of the air blower by the automatic air-conditioning controller in the mode.
4. A cold start control method of an automatic air conditioner for vehicles according to claim 3, wherein: and in the cold starting state mode, the automatic air conditioner controller monitors the temperature data outside the vehicle and the temperature data of the engine in real time, and when the temperature data outside the vehicle is greater than a second outside temperature threshold value or the temperature of the engine water is greater than a second set water temperature, the automatic air conditioner controller exits the cold starting state mode and enters the automatic running state mode.
5. A cold start control method of an automatic air conditioner for vehicles according to any one of claims 1 to 4, wherein: the first vehicle-outside temperature threshold value is 10 ℃, and the first set water temperature is 50 ℃.
6. A cold start control method of an automatic air conditioner for vehicles according to any one of claims 1 to 4, wherein: the second outside-vehicle temperature threshold is 15 ℃, and the second set water temperature is 80 ℃.
7. The utility model provides an automatic air conditioner's of car cold start control system which characterized in that: the control method is used for operating the system according to any one of claims 1 to 6, the system comprises an automatic air conditioner controller, an external temperature sensor, an engine water temperature sensor, an engine ignition state detection module and a vehicle air conditioner, the external temperature sensor is connected with the automatic air conditioner controller, the engine water temperature sensor is connected with the engine controller, an engine water temperature signal and an engine ignition signal are transmitted to the air conditioner controller through a CAN bus, the output end of the automatic air conditioner controller is connected with the vehicle air conditioner, and the automatic air conditioner controller controls the operation mode of the automatic air conditioner controller according to the engine water temperature and the external temperature.
8. The cold start control system of an automatic air conditioner for vehicles according to claim 7, wherein: the operation modes of the automatic air conditioner controller include a cold start state mode and an automatic operation state mode.
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| CN201911356665.5A CN110962542A (en) | 2019-12-25 | 2019-12-25 | Cold start control method and system for automatic air conditioner of automobile |
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| CN201911356665.5A CN110962542A (en) | 2019-12-25 | 2019-12-25 | Cold start control method and system for automatic air conditioner of automobile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112193020A (en) * | 2020-10-29 | 2021-01-08 | 宝能(广州)汽车研究院有限公司 | Control method for vehicle air conditioner, air conditioning system and vehicle |
| CN112622566A (en) * | 2020-12-24 | 2021-04-09 | 宜宾凯翼汽车有限公司 | Control method for preventing automobile exhaust from entering automobile |
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Application publication date: 20200407 |