阅读说明：本技术 一种车内湿度调节方法及系统 (Method and system for adjusting humidity in vehicle ) 是由 姜友爱 朱大莉 郭希宁 南晓峰 于 2018-08-29 设计创作，主要内容包括：本发明涉及车厢湿度调节技术领域,特别是一种车内湿度调节方法及系统。通过获取车内环境温度和车内相对湿度,并根据车内环境温度和车内相对湿度判断车内环境温度是否小于车内温度下限值以及车内相对湿度是否大于相对湿度上限值；当车内环境温度小于车内温度下限值且车内相对湿度大于相对湿度上限值时,控制开启车内采暖系统,直至相对湿度在相对湿度上限值和相对湿度下限值之间或者车内环境温度达到车内环境温度上限值,实现了车内湿度的调节,解决了现有车辆车厢除湿控制不合理导致的除湿效果较差的问题。(The invention relates to the technical field of carriage humidity adjustment, in particular to a method and a system for adjusting humidity in a vehicle. The method comprises the steps of obtaining the environment temperature in the vehicle and the relative humidity in the vehicle, and judging whether the environment temperature in the vehicle is smaller than the lower limit value of the temperature in the vehicle and whether the relative humidity in the vehicle is larger than the upper limit value of the relative humidity according to the environment temperature in the vehicle and the relative humidity in the vehicle; when the ambient temperature in the vehicle is smaller than the lower limit value of the temperature in the vehicle and the relative humidity in the vehicle is larger than the upper limit value of the relative humidity, the heating system in the vehicle is controlled to be started until the relative humidity is between the upper limit value of the relative humidity and the lower limit value of the relative humidity or the ambient temperature in the vehicle reaches the upper limit value of the ambient temperature in the vehicle, the adjustment of the humidity in the vehicle is realized, and the problem of poor dehumidification effect caused by unreasonable dehumidification control of the existing vehicle compartment is solved.)

1. An in-vehicle humidity adjusting method is characterized by comprising the following steps:

1) acquiring the environment temperature in the vehicle and the relative humidity in the vehicle, and judging whether the environment temperature in the vehicle is less than the lower limit value of the temperature in the vehicle and whether the relative humidity in the vehicle is greater than the upper limit value of the relative humidity according to the environment temperature in the vehicle and the relative humidity in the vehicle;

2) and when the environment temperature in the vehicle is less than the lower limit value of the temperature in the vehicle and the relative humidity in the vehicle is greater than the upper limit value of the relative humidity, executing a temperature rise and humidity reduction strategy, wherein the temperature rise and humidity reduction strategy is to control the heating in the vehicle to be started to heat the compartment until the relative humidity is between the upper limit value of the relative humidity and the lower limit value of the relative humidity or the environment temperature in the vehicle reaches the upper limit value of the environment temperature in the vehicle.

2. The in-vehicle humidity adjusting method according to claim 1, further comprising: acquiring the ambient temperature outside the vehicle; and judging whether the environment temperature outside the vehicle is smaller than the lower limit value of the environment temperature outside the vehicle or not according to the environment temperature outside the vehicle, if so, executing a ventilation cooling strategy when the environment temperature inside the vehicle is larger than the upper limit value of the environment temperature inside the vehicle, wherein the ventilation cooling strategy is to control the vehicle to be in an external circulation state until the environment temperature inside the vehicle is lower than the upper limit value of the environment temperature inside the vehicle.

3. The in-vehicle humidity adjusting method according to claim 1, further comprising: acquiring the ambient temperature outside the vehicle; judging whether the outside environment temperature is smaller than the outside temperature lower limit value or not according to the outside environment temperature, if the outside environment temperature is smaller than the outside temperature lower limit value, when the inside environment temperature is between the inside temperature upper limit value and the inside temperature lower limit value and the inside relative humidity is larger than the relative humidity upper limit value, executing a constant temperature ventilation and dehumidification strategy, wherein the constant temperature ventilation and dehumidification strategy is to control the vehicle to be in an external circulation state and start the inside heating to heat the compartment until the relative humidity is between the relative humidity upper limit value and the relative humidity lower limit value.

4. The in-vehicle humidity adjusting method according to claim 2 or 3, further comprising a refrigeration and dehumidification strategy, wherein the refrigeration and dehumidification strategy is to control the air-conditioning refrigeration to be started until the in-vehicle ambient temperature is higher than the in-vehicle ambient temperature lower limit value; and if the environment temperature outside the vehicle is greater than the lower limit value of the temperature outside the vehicle, executing a refrigeration and dehumidification strategy when the environment temperature inside the vehicle is greater than the upper limit value of the temperature inside the vehicle, or the environment temperature inside the vehicle is between the upper limit value of the temperature inside the vehicle and the lower limit value of the temperature inside the vehicle and the relative humidity inside the vehicle is greater than the upper limit value of the relative humidity.

5. The in-vehicle humidity adjustment method according to claim 4, further comprising a natural humidification strategy, wherein the natural humidification strategy is implemented when the in-vehicle relative humidity is less than the relative humidity lower limit value, and the vehicle is controlled to be in an inner circulation state until the relative humidity is between the relative humidity upper limit value and the relative humidity lower limit value.

6. An in-vehicle humidity conditioning system comprising a memory, a controller, and a computer program stored in the memory and executable on the controller, wherein the controller when executing the program implements the steps of:

1) acquiring the environment temperature in the vehicle and the relative humidity in the vehicle, and judging whether the environment temperature in the vehicle is less than the lower limit value of the temperature in the vehicle and whether the relative humidity in the vehicle is greater than the upper limit value of the relative humidity according to the environment temperature in the vehicle and the relative humidity in the vehicle;

2) and when the environment temperature in the vehicle is less than the lower limit value of the temperature in the vehicle and the relative humidity in the vehicle is greater than the upper limit value of the relative humidity, executing a temperature rise and humidity reduction strategy, wherein the temperature rise and humidity reduction strategy is to control a heating system in the vehicle to heat the compartment until the relative humidity is between the upper limit value of the relative humidity and the lower limit value of the relative humidity or the environment temperature in the vehicle reaches the upper limit value of the environment temperature in the vehicle.

7. The in-vehicle humidity conditioning system according to claim 6, wherein the controller when executing the program further effects: acquiring the ambient temperature outside the vehicle; and judging whether the environment temperature outside the vehicle is smaller than the lower limit value of the environment temperature outside the vehicle or not according to the environment temperature outside the vehicle, if so, executing a ventilation cooling strategy when the environment temperature inside the vehicle is larger than the upper limit value of the environment temperature inside the vehicle, wherein the ventilation cooling strategy is to control the vehicle to be in an external circulation state until the environment temperature inside the vehicle is lower than the upper limit value of the environment temperature inside the vehicle.

8. The in-vehicle humidity conditioning system according to claim 7, wherein the controller when executing the program further effects: acquiring the ambient temperature outside the vehicle; judging whether the outside environment temperature is smaller than the outside temperature lower limit value or not according to the outside environment temperature, if the outside environment temperature is smaller than the outside temperature lower limit value, when the inside environment temperature is between the inside temperature upper limit value and the inside temperature lower limit value and the inside relative humidity is larger than the relative humidity upper limit value, executing a constant temperature ventilation and dehumidification strategy, wherein the constant temperature ventilation and dehumidification strategy is to control the vehicle to be in an external circulation state and start the inside heating to heat the compartment until the relative humidity is between the relative humidity upper limit value and the relative humidity lower limit value.

9. The in-vehicle humidity adjustment system according to claim 7 or 8, wherein the controller when executing the program further realizes: and if the environment temperature outside the automobile is greater than the lower limit value of the temperature outside the automobile, executing a refrigeration and dehumidification strategy when the environment temperature inside the automobile is greater than the upper limit value of the temperature inside the automobile, or the environment temperature inside the automobile is between the upper limit value of the temperature inside the automobile and the lower limit value of the temperature inside the automobile and the relative humidity inside the automobile is greater than the upper limit value of the relative humidity, wherein the refrigeration and dehumidification strategy is to control the air conditioner to be started until the environment temperature inside the automobile is greater than the lower limit value of the environment temperature.

10. The in-vehicle humidity conditioning system according to claim 9, wherein the controller when executing the program further effects: and when the relative humidity in the vehicle is smaller than the lower relative humidity limit value, executing a natural humidification strategy, wherein the natural humidification strategy is to control the vehicle to be in an internal circulation state until the relative humidity is between the upper relative humidity limit value and the lower relative humidity limit value.

Technical Field

The invention relates to the technical field of carriage humidity adjustment, in particular to a method and a system for adjusting humidity in a vehicle.

Background

In a closed space or a space lacking air circulation, a person or an animal exhales water vapor to increase the moisture in the air of the space; after a long time, the humidity increases. After the humidity in the vehicle is increased, when the glass on the vehicle is encountered, the single-layer glass is in direct contact with the external low temperature, and the temperature is lower. When the temperature of the glass is lower than the dew point temperature of air in the vehicle, water vapor begins to condense on the glass and even flows. The condensation of the glass affects the vision of passengers and wets objects such as curtains, passenger clothes and the like. In addition, the human body humidity comfort is suitable for a certain range, and after the humidity in the automobile is increased to a certain degree, the human body feels uncomfortable. When the existing dehumidification is air conditioner refrigeration, the air in the vehicle is dehumidified along with the air conditioner refrigeration operation; and when the vehicle runs at a high speed, the air speed of the air inlet system can be increased. However, the existing dehumidification is mainly performed along with the refrigeration wind speed, so that the comfort of the wind speed is influenced; in addition, in a low-temperature state in winter, after the limitation of the refrigeration function in the vehicle is started, the dehumidification function is invalid; in addition, when dehumidification is performed with refrigeration, the time is not controlled, and excessive dehumidification is likely to occur.

Disclosure of Invention

The invention aims to provide a method and a system for adjusting humidity in a vehicle, which are used for solving the problem of poor dehumidification effect caused by unreasonable dehumidification control of the carriage of the conventional vehicle.

In order to realize the adjustment of the humidity in the vehicle, the problem of poor dehumidification effect caused by unreasonable dehumidification control of the carriage of the conventional vehicle is solved. The invention provides a method for adjusting humidity in a vehicle, which comprises the following steps:

1) acquiring the environment temperature in the vehicle and the relative humidity in the vehicle, and judging whether the environment temperature in the vehicle is less than the lower limit value of the temperature in the vehicle and whether the relative humidity in the vehicle is greater than the upper limit value of the relative humidity according to the environment temperature in the vehicle and the relative humidity in the vehicle;

2) and when the environment temperature in the vehicle is less than the lower limit value of the temperature in the vehicle and the relative humidity in the vehicle is greater than the upper limit value of the relative humidity, executing a temperature rise and humidity reduction strategy, wherein the temperature rise and humidity reduction strategy is to control the heating in the vehicle to be started to heat the compartment until the relative humidity is between the upper limit value of the relative humidity and the lower limit value of the relative humidity or the environment temperature in the vehicle reaches the upper limit value of the environment temperature in the vehicle.

The beneficial effects are that, can be according to temperature and relative humidity in the car, reduce the relative humidity in the car through heating the carriage when the temperature is lower in the car, more reasonable solution dehumidification problem.

Further, in order to realize energy saving by introducing cool air from outside the vehicle and high temperature inside the vehicle, the method further comprises: acquiring the ambient temperature outside the vehicle; and judging whether the environment temperature outside the vehicle is smaller than the lower limit value of the environment temperature outside the vehicle or not according to the environment temperature outside the vehicle, if so, executing a ventilation cooling strategy when the environment temperature inside the vehicle is larger than the upper limit value of the environment temperature inside the vehicle, wherein the ventilation cooling strategy is to control the vehicle to be in an external circulation state until the environment temperature inside the vehicle is lower than the upper limit value of the environment temperature inside the vehicle.

Further, in order to achieve the purpose of preventing a large change in the temperature inside the vehicle by introducing dry air from the outside of the vehicle and high-humidity air inside the vehicle, the method further comprises: acquiring the ambient temperature outside the vehicle; judging whether the outside environment temperature is smaller than the outside temperature lower limit value or not according to the outside environment temperature, if the outside environment temperature is smaller than the outside temperature lower limit value, when the inside environment temperature is between the inside temperature upper limit value and the inside temperature lower limit value and the inside relative humidity is larger than the relative humidity upper limit value, executing a constant temperature ventilation and dehumidification strategy, wherein the constant temperature ventilation and dehumidification strategy is to control the vehicle to be in an external circulation state and start the inside heating to heat the compartment until the relative humidity is between the relative humidity upper limit value and the relative humidity lower limit value.

Further, in order to meet the comprehensive applicability of the adjusting method, the method further comprises a refrigeration and dehumidification strategy, wherein the refrigeration and dehumidification strategy is to control the air conditioner to be started for refrigeration until the ambient temperature in the vehicle is higher than the lower limit value of the ambient temperature in the vehicle; and if the environment temperature outside the vehicle is greater than the lower limit value of the temperature outside the vehicle, executing a refrigeration and dehumidification strategy when the environment temperature inside the vehicle is greater than the upper limit value of the temperature inside the vehicle, or the environment temperature inside the vehicle is between the upper limit value of the temperature inside the vehicle and the lower limit value of the temperature inside the vehicle and the relative humidity inside the vehicle is greater than the upper limit value of the relative humidity.

Further, in order to save a humidifier in the vehicle, reduce the cost of the whole vehicle, reduce the arrangement space and reduce the weight of the whole vehicle, the method further comprises a natural humidification strategy, wherein the natural humidification strategy is used for controlling the vehicle to be in an internal circulation state until the relative humidity is between an upper limit value and a lower limit value of the relative humidity, and when the relative humidity in the vehicle is smaller than the lower limit value of the relative humidity, the natural humidification strategy is executed.

In order to implement the method, the invention also provides an in-vehicle humidity adjusting system, which comprises a memory, a controller and a computer program stored in the memory and capable of running on the controller, wherein the controller executes the program to realize the following steps:

1) acquiring the environment temperature in the vehicle and the relative humidity in the vehicle, and judging whether the environment temperature in the vehicle is less than the lower limit value of the temperature in the vehicle and whether the relative humidity in the vehicle is greater than the upper limit value of the relative humidity according to the environment temperature in the vehicle and the relative humidity in the vehicle;

2) when the environment temperature in the vehicle is lower than the lower limit value of the temperature in the vehicle and the relative humidity in the vehicle is greater than the upper limit value of the relative humidity, executing a temperature rise and humidity reduction strategy, wherein the temperature rise and humidity reduction strategy is to control a heating system in the vehicle to heat the compartment until the relative humidity is between the upper limit value of the relative humidity and the lower limit value of the relative humidity or the environment temperature in the vehicle reaches the upper limit value of the environment temperature in the vehicle, and the relative humidity in the vehicle can be reduced by heating the compartment when the temperature in the vehicle is lower according to the temperature and the relative humidity in the vehicle, so that the dehumidification problem is more reasonably solved

Further, in order to realize energy saving by introducing cold air from the outside of the vehicle and high temperature inside the vehicle, the controller executes the program to further realize: acquiring the ambient temperature outside the vehicle; and judging whether the environment temperature outside the vehicle is smaller than the lower limit value of the environment temperature outside the vehicle or not according to the environment temperature outside the vehicle, if so, executing a ventilation cooling strategy when the environment temperature inside the vehicle is larger than the upper limit value of the environment temperature inside the vehicle, wherein the ventilation cooling strategy is to control the vehicle to be in an external circulation state until the environment temperature inside the vehicle is lower than the upper limit value of the environment temperature inside the vehicle.

Further, in order to achieve the purpose of preventing the temperature in the vehicle from being greatly changed by introducing dry air and high-humidity air in the vehicle from the outside of the vehicle, the controller executes the program and further realizes the following steps: acquiring the ambient temperature outside the vehicle; judging whether the outside environment temperature is smaller than the outside temperature lower limit value or not according to the outside environment temperature, if the outside environment temperature is smaller than the outside temperature lower limit value, when the inside environment temperature is between the inside temperature upper limit value and the inside temperature lower limit value and the inside relative humidity is larger than the relative humidity upper limit value, executing a constant temperature ventilation and dehumidification strategy, wherein the constant temperature ventilation and dehumidification strategy is to control the vehicle to be in an external circulation state and start the inside heating to heat the compartment until the relative humidity is between the relative humidity upper limit value and the relative humidity lower limit value.

Further, in order to satisfy the overall applicability of the adjustment method, the adjustment system further includes an air conditioning system for cooling and dehumidifying a vehicle compartment, and the controller executes the program to further implement: and if the environment temperature outside the automobile is greater than the lower limit value of the temperature outside the automobile, executing a refrigeration and dehumidification strategy when the environment temperature inside the automobile is greater than the upper limit value of the temperature inside the automobile, or the environment temperature inside the automobile is between the upper limit value of the temperature inside the automobile and the lower limit value of the temperature inside the automobile and the relative humidity inside the automobile is greater than the upper limit value of the relative humidity, wherein the refrigeration and dehumidification strategy is to control the air conditioner to be started until the environment temperature inside the automobile is greater than the lower limit value of the environment temperature.

Further, in order to save a humidifier in the vehicle, reduce the cost of the whole vehicle, reduce the arrangement space and reduce the weight of the whole vehicle, the controller executes the program and further realizes: and when the relative humidity in the vehicle is smaller than the lower relative humidity limit value, executing a natural humidification strategy, wherein the natural humidification strategy is to control the vehicle to be in an internal circulation state until the relative humidity is between the upper relative humidity limit value and the lower relative humidity limit value.

Drawings

Fig. 1 is a schematic flow chart of an in-vehicle humidity adjusting method according to the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Method embodiment

The invention provides a method for adjusting humidity in a vehicle, which comprises the following strategies:

strategy 1, a temperature rise and humidity reduction strategy;

strategy 2, ventilation cooling strategy;

strategy 3, constant-temperature ventilation and dehumidification strategy;

strategy 4, a refrigeration and dehumidification strategy;

strategy 5, natural humidification strategy.

The method comprises the following steps:

step 1, obtaining the environment temperature in the vehicle and the relative humidity in the vehicle, and judging whether the environment temperature in the vehicle is smaller than the lower limit value of the temperature in the vehicle and whether the relative humidity in the vehicle is larger than the upper limit value of the relative humidity.

And 2, controlling the vehicle to execute a corresponding strategy according to different ambient temperatures and humidity in the vehicle.

In addition, as shown in fig. 1, in step 1, in addition to obtaining the vehicle interior ambient temperature and the vehicle interior relative humidity, logic for obtaining the vehicle exterior ambient temperature and comparing the vehicle exterior ambient temperature with the vehicle exterior temperature lower limit value may be added. In fig. 1, the in-vehicle temperature corresponds to the in-vehicle ambient temperature, the out-vehicle temperature corresponds to the out-vehicle ambient temperature, and the in-vehicle humidity corresponds to the in-vehicle relative humidity.

Therefore, in step 2, the environment temperature outside the vehicle, the environment temperature inside the vehicle, and the relative humidity inside the vehicle are combined, and the environment state of the vehicle can be specifically classified into the following cases:

1. when the vehicle exterior environment temperature Tw is less than the vehicle exterior temperature lower limit value T, the following state exists in the vehicle interior environment:

1.1, the ambient temperature Tn in the vehicle is lower than the lower limit value Tsmmin of the temperature in the vehicle, and the relative humidity psi n in the vehicle is greater than the upper limit value psi smax of the relative humidity, namely Tn is less than Tsmmin and psi n is greater than psi smax.

The temperature in the vehicle is lower than the comfort temperature in the state, and the relative humidity is higher than the comfort relative humidity, at the moment, the temperature rise and the humidity fall are utilized to reduce the relative humidity psi n in the vehicle by utilizing the principle that the relative humidity is reduced along with the temperature rise under the condition that the moisture content dn in the vehicle is not changed, so that the condition that the relative humidity in the vehicle reaches the comfort range is met, and the temperature in the vehicle also reaches the comfort temperature range.

Therefore, in this state, the strategy 1, i.e., the warming and dehumidifying strategy, is executed, which controls the vehicle interior heating to be turned on to heat the vehicle interior until the relative humidity is between the upper relative humidity limit value and the lower relative humidity limit value or the vehicle interior ambient temperature reaches the upper vehicle interior ambient temperature limit value.

1.2, the ambient temperature Tn in the vehicle is lower than the lower limit value Tsmmin of the temperature in the vehicle, and the relative humidity psi n in the vehicle is smaller than the lower limit value psi smin of the relative humidity, namely Tn < Tsmmin and psi n < psi smin.

The air temperature in the vehicle is low, the humidity is low, the human body feeling is uncomfortable, the humidity psi n in the vehicle needs to be increased, and the humidity comfort range is achieved. Therefore, the strategy 5, namely the natural humidification strategy, is executed in the state, the moisture content in the air in the vehicle is increased through the water vapor exhaled by passengers in the vehicle, the humidity in the vehicle is improved, the natural humidification reaches the comfort range, the humidifier in the vehicle is saved, and the cost, the arrangement space and the weight of the whole vehicle are saved.

1.3, the ambient temperature Tn in the vehicle is higher than the upper limit value Tsmax of the temperature in the vehicle, and the relative humidity psi n in the vehicle is larger than the upper limit value psi smax of the relative humidity, namely Tn is larger than Tsmax and psi n is larger than psi smax.

The temperature in the vehicle is high, the temperature and the humidity are high, and the humidity is reduced; meanwhile Tw is less than T, the environmental temperature is low, and the cooling and dehumidifying effects can be effectively realized. Therefore, the strategy 2, namely, the ventilation cooling strategy, is executed, and the vehicle is controlled to be in the outer circulation state until the vehicle internal environment temperature is lower than the vehicle internal environment temperature upper limit value.

The first step is as follows: the temperature in the vehicle is adjusted firstly, the hot air in the vehicle is synchronously exhausted by introducing the cold air outside the vehicle, and the external air intake and the air induction are stopped after the temperature in the vehicle reaches a comfortable interval. The second step is that: and after the air inlet outside the vehicle is finished, the humidity comfort in the vehicle is adjusted.

And in the second step, if the humidity in the vehicle is within the humidity comfort range, the treatment is not carried out. If the humidity in the vehicle is higher than the humidity comfort range, the environmental state is the state in the following 1.5, and the processing manner is as shown in the following 1.5. If the humidity in the vehicle is lower than the humidity comfort range, the environmental condition is the condition in the following 1.6, and the processing manner is as shown in the following 1.6.

The effect of quickly adjusting the temperature and the humidity in the vehicle is achieved by introducing cold air with low temperature and low humidity outside the vehicle, neutralizing hot air with high temperature and high humidity in the vehicle and simultaneously discharging partial hot air with higher moisture content.

1.4, the ambient temperature Tn in the vehicle is higher than the upper temperature limit Tsmax in the vehicle, and the relative humidity psi n in the vehicle is smaller than the lower relative humidity limit psi smin, namely Tn is larger than Tsmax and psi n is smaller than psi smin.

In this state, the temperature in the vehicle is high, the temperature needs to be reduced, the humidity is low, and the humidity needs to be increased; meanwhile Tw is less than T, the environmental temperature is low, and the cooling can be effectively utilized. At this time, strategy 2, namely, ventilation cooling strategy, is executed, and then strategy 5, namely, natural humidification strategy, is executed.

The first step is as follows: the temperature in the vehicle is adjusted firstly, the hot air in the vehicle is synchronously exhausted by introducing the cold air outside the vehicle, and the external air intake and the air induction are stopped after the temperature in the vehicle reaches a comfortable interval. The second step is that: after the temperature of the air is reduced after the air is admitted, the temperature of the air in the vehicle is comfortable, the humidity is low, the moisture content in the air in the vehicle is increased through the water vapor exhaled by passengers in the vehicle, the humidity in the vehicle is improved, and the air is naturally humidified to reach the comfort range.

1.5, the in-vehicle temperature Tn is between the in-vehicle temperature upper limit value Tsmax and the in-vehicle temperature lower limit value Tsmn, and the in-vehicle relative humidity psi n is greater than the relative humidity upper limit value psi smax, namely Tsmn is less than or equal to Tsmax and psi n is greater than psi smax.

At this time, a strategy 3, namely a constant temperature ventilation and dehumidification strategy, is executed, wherein the constant temperature ventilation and dehumidification strategy is to control the vehicle to be in an external circulation state and start the in-vehicle heating to heat the compartment until the relative humidity is between the upper relative humidity limit value and the lower relative humidity limit value.

The cold air outside the vehicle is introduced and mixed with the air inside the vehicle, the wet air inside the vehicle is synchronously discharged, and meanwhile, the heating system inside the vehicle is started to heat the inside of the vehicle. The benefits are: the introduced cold air outside the vehicle is used for introducing dry air outside the vehicle, and is mixed with air with high humidity in the vehicle, so that the humidity of the air in the vehicle is reduced; the humidity reaches the interval value of the humidity comfort range; meanwhile, when dry and cold air outside the vehicle enters, the temperature of the air inside the vehicle is reduced, and the heating system heats the air inside the vehicle to ensure that the temperature inside the vehicle is balanced within a temperature comfort range.

1.6, the temperature Tn in the vehicle is at an upper limit value Tsmax of the temperature in the vehicle and a lower limit value Tsmin of the temperature in the vehicle, and the relative humidity psi n in the vehicle is smaller than the upper limit value psi smin of the relative humidity, namely Tsmn is less than or equal to Tsmax and psi n is less than psi smin.

In this state, a strategy 5, namely a natural humidification strategy, is executed, the moisture content in the air in the vehicle is increased through the water vapor exhaled by passengers in the vehicle, the humidity in the vehicle is improved, the natural humidification reaches the comfort range, the humidifier in the vehicle is saved, and the cost, the arrangement space and the weight of the whole vehicle are saved.

2. When the vehicle exterior environment temperature Tw is greater than the vehicle exterior temperature lower limit value T, the following state exists in the vehicle interior environment:

2.1, the ambient temperature Tn in the vehicle is lower than the lower limit value Tsmmin of the temperature in the vehicle, and the relative humidity psi n in the vehicle is greater than the upper limit value psi smax of the relative humidity, namely Tn is less than Tsmmin and psi n is greater than psi smax.

In this state, a strategy 1, namely a heating and humidity reducing strategy, is executed, wherein the heating and humidity reducing strategy is to control the heating of the compartment by starting the heating in the vehicle until the relative humidity is between the upper limit value and the lower limit value of the relative humidity or the environmental temperature in the vehicle reaches the upper limit value of the environmental temperature in the vehicle.

And 2.2, the ambient temperature Tn in the vehicle is lower than the lower limit value Tsmmin of the temperature in the vehicle, and the relative humidity psi n in the vehicle is smaller than the lower limit value psi smin of the relative humidity, namely Tn < Tsmmin and psi n < psi smin.

In the state, a strategy 5, namely a natural humidification strategy, is executed, the moisture content in the air in the vehicle is increased through the water vapor exhaled by passengers in the vehicle, the humidity in the vehicle is improved, and the natural humidification reaches the comfort range.

And 2.3, the ambient temperature Tn in the vehicle is higher than the upper limit value Tsmax of the temperature in the vehicle, and the relative humidity psi n in the vehicle is larger than the upper limit value psi smax of the relative humidity, namely Tn is larger than Tsmax and psi n is larger than psi smax.

In this state, a strategy 4, namely a refrigeration and dehumidification strategy, is executed, wherein the refrigeration and dehumidification strategy is to control the starting of air conditioning refrigeration until the ambient temperature in the vehicle is higher than the lower limit value of the ambient temperature in the vehicle; the air conditioner can make the air in the vehicle contact with the condenser of the air conditioner, so that the high-humidity air is condensed on the condenser to form liquid water and is discharged through the drainage system, and therefore, the starting of the air conditioner is also accompanied by the starting of auxiliary systems such as a ventilation system, a drainage system and the like.

The cooling in the vehicle is realized, so that Tn meets the temperature comfort range interval; and simultaneously, dehumidifying the interior of the vehicle to ensure that psi n meets the humidity comfort range interval, and discharging water in the air out of the vehicle through a drainage system.

And 2.4, the ambient temperature Tn in the vehicle is higher than the upper temperature limit Tsmax in the vehicle, and the relative humidity psi n in the vehicle is smaller than the lower relative humidity limit psi smin, namely Tn is larger than Tsmax and psi n is smaller than psi smin.

In this state, strategy 4, namely a refrigeration and dehumidification strategy, is executed, and then strategy 5, namely a natural humidification strategy, is executed, so that the humidity with Tw more than or equal to T, Tsmax and less than Tn and psi n and psi smin are in the comfort interval range, and the air temperature is also ensured to be in the comfort interval.

Firstly, an air conditioner refrigeration, ventilation and drainage system in the vehicle is started to cool the interior of the vehicle. And secondly, after the refrigerating and cooling temperature reaches the comfort level, the moisture content in the air in the vehicle is increased through the water vapor exhaled by passengers in the vehicle, the humidity in the vehicle is improved, and the natural humidification is enabled to reach the comfort level.

And 2.5, the in-vehicle temperature Tn is between the in-vehicle temperature upper limit value Tsmax and the in-vehicle temperature lower limit value Tsmn, and the in-vehicle relative humidity psi n is greater than the relative humidity upper limit value psi smax, namely Tsmn is less than or equal to Tsmax and psi n is greater than psi smax.

In this state, the cooling and dehumidifying strategy 4 is implemented, so that the interior of the vehicle is cooled and dehumidified.

And 2.6, the temperature Tn in the vehicle is at an upper limit value Tsmax of the temperature in the vehicle and a lower limit value Tsmin of the temperature in the vehicle, and the relative humidity psi n in the vehicle is smaller than the upper limit value psi smin of the relative humidity, namely Tsmn is less than or equal to Tsmax and psi n is less than psi smin.

In the state, a strategy 5, namely a natural humidification strategy, is executed, the moisture content in the air in the vehicle is increased through the water vapor exhaled by passengers in the vehicle, the humidity in the vehicle is improved, and the natural humidification reaches the comfort range.

The lower limit value and the upper limit value of the temperature in the vehicle correspond to the temperature comfort range of the human body respectively, the upper limit value and the lower limit value of the relative humidity correspond to the humidity comfort range of the human body respectively, and the two ranges are manually specified and can be adjusted according to the use condition.

Summarizing the states and the strategies adopted in the two cases, the practical result is that:

1) and (3) executing a temperature rise and humidity reduction strategy when the ambient temperature in the vehicle is less than the lower limit value of the temperature in the vehicle and the relative humidity in the vehicle is greater than the upper limit value of the relative humidity no matter the temperature outside the vehicle.

2) And if the environment temperature outside the vehicle is lower than the lower limit value of the temperature outside the vehicle, executing a ventilation cooling strategy when the environment temperature inside the vehicle is higher than the upper limit value of the temperature inside the vehicle.

3) And if the ambient temperature outside the vehicle is less than the lower limit value of the temperature outside the vehicle, executing a constant-temperature ventilation and dehumidification strategy when the ambient temperature inside the vehicle is between the upper limit value of the temperature inside the vehicle and the lower limit value of the temperature inside the vehicle and the relative humidity inside the vehicle is greater than the upper limit value of the relative humidity.

4) And if the environment temperature outside the vehicle is greater than the lower limit value of the temperature outside the vehicle, executing a refrigeration and dehumidification strategy when the environment temperature inside the vehicle is greater than the upper limit value of the temperature inside the vehicle, or the environment temperature inside the vehicle is between the upper limit value of the temperature inside the vehicle and the lower limit value of the temperature inside the vehicle and the relative humidity inside the vehicle is greater than the upper limit value of the relative humidity.

5) In any state, the natural humidification strategy is executed only when the relative humidity in the vehicle is smaller than the relative humidity lower limit value.

System embodiment

In order to implement the above method, the present invention provides a system for implementing a method for adjusting humidity in a vehicle, but implementing the above method is not limited to the system. The intelligent humidity comfort regulation controller comprises a memory, a controller and a computer program which is stored in the memory and can run on the controller, wherein the controller realizes the regulation method when executing the program, and is a humidity comfort regulation intelligent controller as shown in figure 1; in addition, no matter what strategy is implemented, the system at least needs to comprise an in-vehicle temperature sensor and an in-vehicle humidity sensor, and the input end of the controller is connected with the in-vehicle temperature sensor and the in-vehicle humidity sensor.

In order to realize the strategy 1, namely a temperature and humidity raising and reducing strategy, the system also comprises a heating system for heating the compartment, and the output end of the controller is connected with the heating system; in order to realize the discrimination of the environment temperature outside the vehicle, the system also comprises a temperature sensor outside the vehicle, and the input end of the controller is connected with the temperature sensor outside the vehicle.

In order to realize strategy 2, namely a ventilation and cooling strategy, the system further comprises an external temperature sensor and an external circulation system for enabling the vehicle to be in an external circulation state, wherein the input end of the controller is connected with the external temperature sensor, and the output end of the controller is connected with the external circulation system.

In order to realize the strategy 3, namely a constant-temperature ventilation and dehumidification strategy, the system further comprises an external temperature sensor, a heating system for heating the compartment and an external circulation system for enabling the vehicle to be in an external circulation state, wherein the input end of the controller is connected with the external temperature sensor, and the output end of the controller is connected with the heating system and the external circulation system.

In order to realize strategy 4, namely a refrigerating and dehumidifying strategy, the system further comprises an outside temperature sensor and an air conditioning system for refrigerating and dehumidifying the carriage, the input end of the controller is connected with the outside temperature sensor, the output end of the controller is connected with the air conditioning system, and the air conditioning system is provided with subsystems such as exhaust, drainage and the like and is used for refrigerating and dehumidifying the carriage.

In order to realize the strategy 5, namely a natural humidification strategy, the system also comprises an internal circulation system for enabling the vehicle to be in an internal circulation state, wherein the output end of the controller is connected with the internal circulation system; in order to realize the discrimination of the environment temperature outside the vehicle, the system also comprises a temperature sensor outside the vehicle, and the input end of the controller is connected with the temperature sensor outside the vehicle.

The present invention has been described in relation to particular embodiments thereof, but the invention is not limited to the described embodiments. In the thought given by the present invention, the technical means in the above embodiments are changed, replaced, modified in a manner that is easily imaginable to those skilled in the art, and the functions are basically the same as the corresponding technical means in the present invention, and the purpose of the invention is basically the same, so that the technical scheme formed by fine tuning the above embodiments still falls into the protection scope of the present invention.