Automatic ventilation and heat dissipation system and method in automobile cabin

Abstract

The invention discloses an automatic ventilation and heat dissipation system and method in an automobile cabin, and relates to the technical field of new energy automobile cabin adjustment, the system comprises an air outlet adjusting module, an automatic air conditioner module, a hidden sunshade curtain module, an in-automobile temperature sensor module, a light and rain sensor module and a control system module; the invention further discloses an automatic ventilation and heat dissipation method in the automobile cabin. The method comprises the steps that the system detects the state of the automobile; the temperature in the vehicle is monitored in real time, and an automatic ventilation and heat dissipation function is triggered; the light and rain sensor detects the external illumination intensity; the hidden sunshade curtain is automatically lifted and lowered according to the external illumination intensity; starting an automatic air-conditioning module; and the control system continuously monitors the temperature in the vehicle. Environmental parameters such as temperature, humidity and illumination intensity inside and outside the automobile are monitored in real time, the air speed and the air direction of the air outlet and the temperature of the air conditioner are automatically adjusted, an automatic sunshade curtain and an automobile window opening mechanism are combined, sunlight is prevented from directly irradiating the interior of the automobile, and more pleasant driving and riding experience is brought.

Description

Technical Field

[0001] The present invention relates to the technical field of cockpit adjustment of new energy vehicles, and in particular to an automatic ventilation and heat dissipation system and method in a vehicle cockpit. Background Art

[0002] With the development of the automobile industry, the comfort of car cabins has attracted more and more attention from consumers. Temperature control, air quality management and comfort improvement in the cabin have become one of the important factors to improve the competitiveness of vehicles. Traditional automobile air-conditioning systems mostly rely on mechanical adjustment and manual operation, which not only reduces the convenience of use to a certain extent, but also poses a considerable challenge to the vehicle's energy efficiency and environmental protection. Especially when the vehicle is parked, the high temperature in summer often causes the temperature in the car to rise rapidly. Car owners often need to wait for the air-conditioning system to reduce the temperature in the car to a comfortable range, wasting a lot of time and energy. In addition, traditional shading systems are usually unable to adjust in real time according to external light intensity and weather conditions, resulting in direct sunlight and temperature increase, affecting the owner's riding experience. Coupled with insufficient management of air quality, the air in the car may become stuffy or polluted, affecting health.

[0003] Therefore, how to adjust the temperature and air quality in the car and optimize energy use in an intelligent and automated way has become an important issue in the design of automobile cabins. To address this issue, the present invention proposes an automatic ventilation and heat dissipation system in the automobile cabin, which dynamically adjusts the interior environment of the car by integrating multiple intelligent modules, realizes automatic heat dissipation, ventilation, shading and other functions, optimizes the comfort in the car, and improves the efficiency and intelligence of the system while saving energy. Summary of the invention

[0004] In order to solve the above technical problems, a system and method for automatic ventilation and heat dissipation in a car cabin are provided. This technical solution solves the above problems.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is: An automatic ventilation and heat dissipation system in a car cabin, comprising: Air outlet adjustment module: The air outlet adjustment module is used to adjust the wind speed and wind direction of the air outlet, blow air obliquely to the rear of the car window, form a flowing airflow, and dissipate heat; Automatic air conditioning module: The automatic air conditioning module is used to automatically adjust the temperature inside the vehicle through the in-vehicle air circulation system when the vehicle is stationary, automatically open the windows after starting, and blow air into the vehicle through the air outlet to dissipate heat; Hidden sunshade module: The hidden sunshade module is used to automatically raise and lower the sunshade according to the external light intensity, blocking direct sunlight from entering the car to reduce the temperature inside the car; In-car temperature sensor module: The in-car temperature sensor module is used to detect the temperature in the car in real time. When the temperature in the car exceeds a preset threshold, the automatic ventilation and cooling system is activated to perform temperature control and adjustment; Light and rain sensor module: The light and rain sensor module is used to detect the external light intensity and adjust the lifting state of the sunshade according to the light intensity; Control system module: The control system module is used to control the start and stop of the system and the coordinated work of various functional modules according to the vehicle status, temperature sensor and light and rain sensor information, to ensure that the automatic ventilation and heat dissipation function is started when the vehicle is stationary and the conditions are met.

[0006] Preferably, the air outlet adjustment module specifically includes: Wind speed control unit: Based on the wind speed sensor, it detects the air flow in the car in real time to ensure that the wind speed is within the set range; Wind speed adjustment mechanism unit: Automatically adjusts the wind speed according to the temperature data fed back by the temperature sensor in the car. If the temperature in the car is too high, the system will increase the wind speed. If the temperature in the car returns to normal, the system will reduce the wind speed. Wind direction adjustment unit: detects the current wind direction and controls the direction of the air outlet through the servo motor. According to the changes in air flow and temperature in the car, the wind direction regulator can automatically change the angle of the air outlet; Air outlet switch control unit: receives control signals from the automatic air conditioning system, automatically starts and closes the air outlet when the temperature in the car reaches the preset threshold, and provides a manual control button for users to adjust the opening and closing status of the air outlet as needed; Environmental adaptation adjustment unit: detects the external ambient temperature through the vehicle's external temperature sensor and automatically adjusts the wind speed and direction of the air outlet; Energy optimization unit: The air outlet adjustment module works in conjunction with the vehicle's battery management system to automatically adjust the wind speed and direction when the battery charge is lower than the set value. The system optimizes the motor power output based on the difference between the temperature inside the vehicle and the outside temperature. User feedback and adjustment interface unit: The current wind speed, wind direction and system status are displayed on the vehicle's central control screen. Users can manually adjust the wind speed and wind direction. Automatic mode can be selected and the owner can adjust the wind speed and wind direction through voice commands.

[0007] Preferably, the automatic air conditioning module specifically includes: Temperature detection and adjustment unit: obtains temperature data from the temperature sensor in real time, sets the temperature range in the vehicle in the vehicle system, and automatically starts the air conditioning system when the temperature in the vehicle exceeds the set range. The automatic air conditioning module will automatically adjust the wind speed and direction based on the comparison between the real-time temperature in the vehicle and the preset temperature, and blow air into the vehicle for heat dissipation; Automatic window opening unit: The system detects the current state of the window when it is started to ensure that the window is not locked or blocked. If the window is closed, the system automatically activates the window switch. When the vehicle is stationary, the system automatically opens the window to 5-10 cm and controls the window opening and closing action through the motor. Air outlet adjustment unit: According to the temperature in the car and the preset comfort range, the system automatically adjusts the wind speed of the air outlet, automatically adjusts the angle of the air outlet according to the air flow in the car, and uses a servo motor to adjust the direction of the air outlet; Air circulation and flow unit: automatically switches the air circulation mode in the car according to the changes in the outside temperature and the temperature requirements in the car; Intelligent control unit: According to the temperature, humidity and air quality inside and outside the car, the automatic air conditioning system automatically adjusts the environment inside the car through control algorithms.

[0008] Preferably, the intelligent control unit specifically includes: According to the difference in temperature inside and outside the car, the system adjusts the temperature inside the car by adjusting the cooling and heating wind speeds of the air conditioner based on the PID control algorithm; Among them, the PID control algorithm formula is:

[0009] In the formula, is the control output, is the temperature error, is the proportional gain, is the integral gain, is the differential gain, When the temperature inside the car deviates from the set temperature, the proportional term generates a control signal proportional to the error. The integral term accumulates past errors, is the differential term; Based on the control output, the temperature is adjusted; Humidity adjustment is performed based on the PID algorithm, and the air purification system is adjusted according to the air quality in the car. If the air quality is poor, the system will start the air purifier and turn on the fresh air system. When the air quality index exceeds the set threshold, the system automatically starts the purification function.

[0010] Preferably, the hidden sunshade module specifically includes: Light sensing unit: monitors the light intensity outside the vehicle in real time, senses the external sunlight intensity, converts it into an electrical signal, and transmits it to the control unit; Signal processing and analysis unit: receives signals from the light sensor, performs data analysis, and determines whether the sunshade needs to be raised or lowered; Light threshold setting unit: The system sets a light intensity threshold. When the light intensity exceeds the set threshold, the system considers that sunlight needs to be blocked; Decision output unit: Based on the comparison between the sensor signal and the preset threshold, the control system determines whether the sunshade needs to be raised or lowered; PID control unit: finely adjusts the degree of raising and lowering of the sunshade based on the speed of light change and the current light intensity; Drive control unit: drives the raising and lowering of the sunshade after receiving the control signal. The position of the sunshade is usually controlled by an electric motor. When the external light intensity exceeds the set threshold, the control signal triggers the motor to start, driving the sunshade to rise and block the window. When the external light intensity drops below the set threshold, the control signal drives the motor to work in reverse, lowering the sunshade to allow more light to enter the car.

[0011] Preferably, the optical rainfall sensor module specifically comprises: Light intensity collection unit: Use a light sensor to collect the light intensity of the external environment in real time. The light signal sensed by the light sensor is converted into an electrical signal, and the collected signal is transmitted to the signal processing unit; Rain detection unit: Use a rain sensor to detect whether there is rainfall. The sensor generates a signal by detecting the changes of raindrops falling on the sensor surface and transmits it to the control system. If the system detects that the rainfall reaches the threshold, the sunshade will automatically close; Decision-making and control unit: Control the sunshade according to the external light intensity and rainfall conditions; Sunshade control unit: controls the motor for raising and lowering the sunshade according to the judgment of the decision unit, and controls the signal to drive the motor to adjust the height and angle of the sunshade; User setting unit: allows users to set parameters.

[0012] Preferably, the decision and control unit specifically includes: The system determines the raising and lowering status of the sunshade according to the external light intensity and rainfall conditions, and compares the received light intensity signal with the preset threshold. When the light intensity exceeds the set threshold, the system determines that the sunshade should block the sunlight. When the light intensity is low, the system will release the sunshade. When the system detects rain and slippery conditions, the sunshade automatically closes to prevent rain from entering the car.

[0013] Preferably, the user setting unit specifically includes: The owner sets the light threshold, rain threshold, and automatic control mode on the vehicle touch screen, and selects the sunshade raising and lowering speed and response sensitivity settings; The system provides real-time feedback on the current light intensity, rainfall information, and the lifting and lowering status of the sunshade. When an abnormality occurs, the system provides a fault alarm. When the sunshade is fully opened or fully closed, the continuous load of the motor is reduced. If the system does not detect changes for a long time and the temperature in the car is suitable, it will automatically enter low-power standby mode. According to the power management system of the vehicle battery, the response frequency of the system is reduced when the power is low. The system records information on light intensity, rainfall data, the raising and lowering of sunshades and system control signals. When a fault in a sensor or actuator is detected, it will automatically alarm and provide an error code.

[0014] Preferably, the control system module specifically includes: Vehicle status monitoring unit: ensures that the vehicle is stationary and the engine is turned off; Sensor data acquisition unit: obtains information from temperature sensor and light rainfall sensor; Analysis condition unit: determines whether ventilation and heat dissipation need to be started according to the temperature inside and outside the vehicle, light intensity and rainfall information; Ventilation and cooling control unit: automatically opens the windows, sunroof and starts the air conditioning system to adjust the temperature inside the car.

[0015] An automatic ventilation and heat dissipation method in a car cabin, the automatic ventilation and heat dissipation method specifically comprising: The system detects whether the vehicle is stationary to ensure that the conditions for starting automatic ventilation and heat dissipation are met; The in-car temperature sensor monitors the in-car temperature in real time. When the temperature exceeds 50°C, the automatic ventilation and heat dissipation function is triggered; The light and rain sensor detects the external light intensity, determines whether the sunlight is strong, and decides whether the sunshade needs to be adjusted; Automatically raise and lower the hidden sunshade according to the external light intensity to reduce the temperature inside the car; Start the automatic air conditioning module, open the car window, activate the air circulation system, and the air outlet adjustment module adjusts the wind speed and direction to blow air diagonally behind the car window; The control system continuously monitors the temperature inside the car. When the temperature inside the car returns to a comfortable range, it automatically turns off the ventilation and cooling functions and restores the windows and sunshades to their default states.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention proposes to monitor the environmental parameters such as temperature, humidity and light intensity inside and outside the car in real time, and automatically adjust the wind speed, wind direction and air-conditioning temperature of the air outlet to ensure that the interior of the car is always within a comfortable temperature range. At the same time, combined with automatic sunshades and window opening mechanisms, direct sunlight into the car or high temperature environment causing discomfort in the car can be avoided, bringing a more pleasant driving and riding experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a system framework diagram of the present invention; Figure 2 It is a step flow framework diagram of the present invention. DETAILED DESCRIPTION

[0018] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0019] Reference Figure 1 As shown, an automatic ventilation and heat dissipation system in a car cabin comprises: Air outlet adjustment module: The air outlet adjustment module is used to adjust the wind speed and direction of the air outlet, blow air diagonally to the rear of the window, form a flowing airflow, and dissipate heat; Automatic air conditioning module: The automatic air conditioning module is used to automatically adjust the temperature inside the vehicle through the air circulation system when the vehicle is stationary, automatically open the window after starting, and blow air into the vehicle through the air outlet to dissipate heat; Hidden sunshade module: The hidden sunshade module is used to automatically raise and lower the sunshade according to the external light intensity, block direct sunlight from entering the vehicle, and reduce the temperature inside the vehicle; Temperature sensor inside the vehicle Sensor module: The in-car temperature sensor module is used to detect the temperature in the car in real time. When the temperature in the car exceeds the preset threshold, the automatic ventilation and cooling system is started to perform temperature control. Light and rain sensor module: The light and rain sensor module is used to detect the intensity of external light and adjust the lifting state of the sunshade according to the light intensity. Control system module: The control system module is used to control the start and stop of the system and the coordinated work of various functional modules according to the vehicle status, temperature sensor and light and rain sensor information, to ensure that the automatic ventilation and cooling function is started when the vehicle is stationary and the conditions are met.

[0020] The air outlet adjustment module specifically includes: Wind speed control unit: Based on the wind speed sensor, it detects the air flow in the car in real time to ensure that the wind speed is within the set range; Wind speed adjustment mechanism unit: Automatically adjusts the wind speed according to the temperature data fed back by the temperature sensor in the car. If the temperature in the car is too high, the system will increase the wind speed. If the temperature in the car returns to normal, the system will reduce the wind speed. Wind direction adjustment unit: detects the current wind direction and controls the direction of the air outlet through the servo motor. According to the changes in air flow and temperature in the car, the wind direction regulator can automatically change the angle of the air outlet; Air outlet switch control unit: receives control signals from the automatic air conditioning system, automatically starts and closes the air outlet when the temperature in the car reaches the preset threshold, and provides a manual control button for users to adjust the opening and closing status of the air outlet as needed; Environmental adaptation adjustment unit: detects the external ambient temperature through the vehicle's external temperature sensor and automatically adjusts the wind speed and direction of the air outlet; Energy optimization unit: The air outlet adjustment module works in conjunction with the vehicle's battery management system to automatically adjust the wind speed and direction when the battery charge is lower than the set value. The system optimizes the motor power output based on the difference between the temperature inside the vehicle and the outside temperature. User feedback and adjustment interface unit: Displays the current wind speed, wind direction and system status on the vehicle's central control screen. Users can manually adjust the wind speed and wind direction. Automatic mode can be selected. The owner can adjust the wind speed and wind direction through voice commands. Users can manually adjust the wind speed, wind direction and other environmental control settings according to their needs through the touch operation on the central control screen, providing flexible personalized adjustment functions. Car owners can directly slide the wind speed adjustment bar on the touch screen to quickly increase or decrease the intensity of air flow. At the same time, they can also manually set the direction of the air outlet through the wind direction adjustment interface to ensure that the airflow in the car is more uniform and comfortable.

[0021] The automatic air conditioning module specifically includes: Temperature detection and adjustment unit: obtains temperature data from the temperature sensor in real time, sets the temperature range in the vehicle in the vehicle system, and automatically starts the air conditioning system when the temperature in the vehicle exceeds the set range. The automatic air conditioning module will automatically adjust the wind speed and direction based on the comparison between the real-time temperature in the vehicle and the preset temperature, and blow air into the vehicle for heat dissipation; Automatic window opening unit: The system detects the current state of the window when it is started to ensure that the window is not locked or blocked. If the window is closed, the system automatically activates the window switch. When the vehicle is stationary, the system automatically opens the window to 5-10 cm and controls the window opening and closing action through the motor. Air outlet adjustment unit: According to the temperature in the car and the preset comfort range, the system automatically adjusts the wind speed of the air outlet, automatically adjusts the angle of the air outlet according to the air flow in the car, and uses a servo motor to adjust the direction of the air outlet; Sensor and feedback unit: Based on external and internal sensors, it detects the ambient temperature outside the vehicle in real time, and the humidity level and air pollution conditions inside the vehicle in real time; Intelligent control unit: Based on the temperature, humidity and air quality inside and outside the car, the automatic air conditioning system automatically adjusts the interior environment through control algorithms; The system supports automatic mode. In this mode, the system will automatically adjust the wind speed and direction according to the temperature, humidity, light and other environmental parameters inside and outside the car. The owner does not need to intervene manually. The system will intelligently optimize the environment inside the car to ensure that the owner is always in a comfortable temperature and air circulation state. The automatic mode can not only dynamically adjust according to real-time data, but also conduct long-term learning and optimization according to the preferences set by the user; In addition to touch operation, the system also provides support for voice commands. Car owners can directly issue commands through the in-car voice assistant to adjust wind speed, wind direction and other functions without manually touching the central control screen, further improving driving safety and convenience. Car owners only need to say "adjust wind speed to medium" or "adjust wind direction to the front of the car", and the voice system can quickly respond and perform corresponding operations, reducing operational interference during driving and improving driving safety and comfort.

[0022] The intelligent control unit specifically includes: According to the difference in temperature inside and outside the car, the system adjusts the temperature inside the car by adjusting the cooling and heating wind speeds of the air conditioner based on the PID control algorithm; Among them, the PID control algorithm formula is:

[0023] In the formula, is the control output, is the temperature error, is the proportional gain, is the integral gain, is the differential gain, When the temperature inside the car deviates from the set temperature, the proportional term generates a control signal proportional to the error. The integral term accumulates past errors, is the differential term; Based on the control output, the temperature is adjusted; Humidity adjustment is performed based on the PID algorithm, and the air purification system is adjusted according to the air quality in the car. If the air quality is poor, the system will start the air purifier and turn on the fresh air system. When the air quality index exceeds the set threshold, the system automatically starts the purification function.

[0024] The hidden sunshade module specifically includes: Light sensing unit: monitors the light intensity outside the vehicle in real time, senses the external sunlight intensity, converts it into an electrical signal, and transmits it to the control unit; Signal processing and analysis unit: receives signals from the light sensor, performs data analysis, and determines whether the sunshade needs to be raised or lowered; Light threshold setting unit: The system sets a light intensity threshold. When the light intensity exceeds the set threshold, the system considers that sunlight needs to be blocked; Decision output unit: Based on the comparison between the sensor signal and the preset threshold, the control system determines whether the sunshade needs to be raised or lowered; PID control unit: finely adjusts the degree of raising and lowering of the sunshade based on the speed of light change and the current light intensity; Drive control unit: drives the raising and lowering of the sunshade after receiving the control signal. The position of the sunshade is usually controlled by an electric motor. When the external light intensity exceeds the set threshold, the control signal triggers the motor to start, driving the sunshade to rise and block the window. When the external light intensity drops below the set threshold, the control signal drives the motor to work in reverse, lowering the sunshade to allow more light to enter the car.

[0025] The optical rainfall sensor module specifically comprises: Light intensity collection unit: Use a light sensor to collect the light intensity of the external environment in real time. The light signal sensed by the light sensor is converted into an electrical signal, and the collected signal is transmitted to the signal processing unit; Rain detection unit: Use a rain sensor to detect whether there is rainfall. The sensor generates a signal by detecting the changes of raindrops falling on the sensor surface and transmits it to the control system. If the system detects that the rainfall reaches the threshold, the sunshade will automatically close; Decision-making and control unit: Control the sunshade according to the external light intensity and rainfall conditions; Sunshade control unit: controls the motor for raising and lowering the sunshade according to the judgment of the decision unit, and controls the signal to drive the motor to adjust the height and angle of the sunshade; User setting unit: allows users to set parameters.

[0026] The decision and control unit specifically includes: The system determines the raising and lowering status of the sunshade according to the external light intensity and rainfall conditions, and compares the received light intensity signal with the preset threshold. When the light intensity exceeds the set threshold, the system determines that the sunshade should block the sunlight. When the light intensity is low, the system will release the sunshade. When the system detects rain and slippery conditions, the sunshade automatically closes to prevent rain from entering the car.

[0027] The user setting unit specifically includes: The owner sets the light threshold, rain threshold, and automatic control mode on the vehicle touch screen, and selects the sunshade raising and lowering speed and response sensitivity settings; The system provides real-time feedback on the current light intensity, rainfall information, and the lifting and lowering status of the sunshade. When an abnormality occurs, the system provides a fault alarm. When the sunshade is fully opened or fully closed, the continuous load of the motor is reduced. If the system does not detect changes for a long time and the temperature in the car is suitable, it will automatically enter low-power standby mode. According to the power management system of the vehicle battery, the response frequency of the system is reduced when the power is low. The system records information on light intensity, rainfall data, the raising and lowering of sunshades and system control signals. When a fault in a sensor or actuator is detected, it will automatically alarm and provide an error code.

[0028] The control system module specifically includes: Vehicle status monitoring unit: ensures that the vehicle is stationary and the engine is turned off; Sensor data acquisition unit: obtains information from temperature sensor and light rainfall sensor; Analysis condition unit: determines whether ventilation and heat dissipation need to be started according to the temperature inside and outside the vehicle, light intensity and rainfall information; Ventilation and cooling control unit: automatically opens the windows, sunroof and starts the air conditioning system to adjust the temperature inside the car.

[0029] Customize control parameters, monitor system status, optimize system operation according to energy efficiency requirements, reduce energy consumption, and adjust ventilation and cooling strategies according to environmental changes.

[0030] An automatic ventilation and heat dissipation method in a car cabin, the automatic ventilation and heat dissipation method specifically comprising: The system detects whether the vehicle is stationary to ensure that the conditions for starting automatic ventilation and heat dissipation are met; The in-car temperature sensor monitors the in-car temperature in real time. When the temperature exceeds 50°C, the automatic ventilation and heat dissipation function is triggered; The light and rain sensor detects the external light intensity, determines whether the sunlight is strong, and decides whether the sunshade needs to be adjusted; Automatically raise and lower the hidden sunshade according to the external light intensity to reduce the temperature inside the car; Start the automatic air conditioning module, open the car window, activate the air circulation system, and the air outlet adjustment module adjusts the wind speed and direction to blow air diagonally behind the car window; The control system continuously monitors the temperature inside the car. When the temperature inside the car returns to a comfortable range, it automatically turns off the ventilation and cooling functions and restores the windows and sunshades to their default states.

[0031] In summary, the advantages of the present invention are: The system can monitor the temperature, humidity, light intensity and other environmental parameters inside and outside the car in real time, and automatically adjust the wind speed, wind direction and air conditioning temperature of the air outlet to ensure that the temperature inside the car is always within a comfortable range. At the same time, combined with the automatic sunshade and window opening mechanism, it can prevent direct sunlight from shining into the car or high temperature environment from causing discomfort inside the car, bringing a more pleasant driving and riding experience; The system precisely controls the temperature regulation and ventilation and heat dissipation strategies in the vehicle. It automatically adjusts the wind speed, wind direction and air outlet switch according to the temperature difference between the inside and outside of the vehicle, the vehicle power level and environmental conditions, ensuring maximum energy saving while maintaining the comfort level in the vehicle. In particular, when the battery power is lower than the set value, the system will optimize energy consumption and avoid unnecessary power waste. By integrating PID control algorithms, the system can make fine adjustments based on multiple factors such as the temperature difference between inside and outside the vehicle, humidity changes, etc., to achieve more accurate environmental control. Moreover, under different lighting and rainfall environments, the system can automatically adjust the sunshade curtain lifting state to ensure the comfort and privacy of the vehicle environment, improve the user experience and improve the vehicle's intelligence level; The system can monitor the status of the vehicle in real time, ensuring that the ventilation and cooling system is activated only when the vehicle is stationary and the engine is turned off, avoiding unnecessary energy consumption. At the same time, through the sensor fault detection and feedback mechanism, the system can automatically alarm when an abnormality occurs, ensuring that the owner can understand the system status in time and avoid the reduction of environmental comfort or energy waste caused by equipment failure; Users can adjust wind speed, wind direction, sunshade raising and lowering speed and other parameters in real time through the in-vehicle central control screen or voice commands to meet personalized ventilation and cooling needs. The system also allows users to set customized control options such as light threshold and rainfall threshold, so as to flexibly optimize the comfort in the car according to personal preferences and external environment. The system can not only adjust the temperature, but also monitor the air quality in the car in real time. When air pollution or abnormal humidity is detected, the system will automatically start the air purifier and fresh air system to ensure that the owner can enjoy fresh air in the car, thereby further improving the owner's health and comfort. Through the coordinated work of various sensors and modules, the system has a high level of intelligence and automation. It can not only independently complete tasks such as temperature control, ventilation, and shading, but also automatically adjust strategies according to environmental changes to maximize the convenience and driving experience of car owners. This intelligent environmental control solution will become an important development direction for future smart cars.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic ventilation and heat dissipation system in a car cabin, characterized in that: include: Air outlet adjustment module: The air outlet adjustment module is used to adjust the wind speed and wind direction of the air outlet to blow air obliquely behind the car window; Automatic air conditioning module: The automatic air conditioning module is used to automatically adjust the temperature inside the vehicle through the air circulation system when the vehicle is stationary, automatically open the windows after starting, and blow air into the vehicle through the air outlet to dissipate heat; Hidden sunshade module: The hidden sunshade module is used to automatically raise and lower the sunshade according to the external light intensity, blocking direct sunlight from entering the car to reduce the temperature inside the car; In-car temperature sensor module: The in-car temperature sensor module is used to detect the temperature in the car in real time. When the temperature in the car exceeds a preset threshold, the automatic ventilation and cooling system is activated to perform temperature control and adjustment; Light and rain sensor module: The light and rain sensor module is used to detect the external light intensity and adjust the lifting state of the sunshade according to the light intensity; Control system module: The control system module is used to control the start and stop of the system and the coordinated work of various functional modules according to the vehicle status, temperature sensor and light and rain sensor information, to ensure that the automatic ventilation and heat dissipation function is started when the vehicle is stationary and the conditions are met.

2. The automatic ventilation and heat dissipation system in a vehicle cabin according to claim 1, characterized in that: The air outlet adjustment module specifically includes: Wind speed control unit: Based on the wind speed sensor, it detects the air flow in the car in real time to ensure that the wind speed is within the set range; Wind speed adjustment mechanism unit: Automatically adjusts the wind speed according to the temperature data fed back by the temperature sensor in the car. If the temperature in the car is too high, the system will increase the wind speed. If the temperature in the car returns to normal, the system will reduce the wind speed. Wind direction adjustment unit: detects the current wind direction and controls the direction of the air outlet through the servo motor. According to the changes in air flow and temperature in the car, the wind direction regulator can automatically change the angle of the air outlet; Air outlet switch control unit: receives control signals from the automatic air conditioning system, automatically starts and closes the air outlet when the temperature in the car reaches the preset threshold, and provides a manual control button for users to adjust the opening and closing status of the air outlet as needed; Environmental adaptation adjustment unit: detects the external ambient temperature through the vehicle's external temperature sensor and automatically adjusts the wind speed and direction of the air outlet; Energy optimization unit: The air outlet adjustment module works in conjunction with the vehicle's battery management system to automatically adjust the wind speed and direction when the battery charge is lower than the set value. The system optimizes the motor power output based on the difference between the temperature inside the vehicle and the outside temperature. User feedback and adjustment interface unit: The current wind speed, wind direction and system status are displayed on the vehicle's central control screen. Users can manually adjust the wind speed and wind direction. Automatic mode can be selected and the owner can adjust the wind speed and wind direction through voice commands.

3. The automatic ventilation and heat dissipation system in a car cabin according to claim 2, characterized in that: The automatic air conditioning module specifically includes: Temperature detection and adjustment unit: obtains temperature data from the temperature sensor in real time, sets the temperature range in the vehicle in the vehicle system, and automatically starts the air conditioning system when the temperature in the vehicle exceeds the set range. The automatic air conditioning module will automatically adjust the wind speed and direction based on the comparison between the real-time temperature in the vehicle and the preset temperature, and blow air into the vehicle for heat dissipation; Automatic window opening unit: The system detects the current state of the window when it is started to ensure that the window is not locked or blocked. If the window is closed, the system automatically activates the window switch. When the vehicle is stationary, the system automatically opens the window to 5-10 cm and controls the window opening and closing action through the motor. Air outlet adjustment unit: According to the temperature in the car and the preset comfort range, the system automatically adjusts the wind speed of the air outlet, automatically adjusts the angle of the air outlet according to the air flow in the car, and uses a servo motor to adjust the direction of the air outlet; Air circulation and flow unit: automatically switches the air circulation mode in the car according to the changes in the outside temperature and the temperature requirements in the car; Intelligent control unit: According to the temperature, humidity and air quality inside and outside the car, the automatic air conditioning system automatically adjusts the environment inside the car through control algorithms.

4. The automatic ventilation and heat dissipation system in the vehicle cabin according to claim 3, characterized in that: The intelligent control unit specifically includes: According to the difference in temperature inside and outside the car, the system adjusts the temperature inside the car by adjusting the cooling and heating wind speeds of the air conditioner based on the PID control algorithm; Among them, the PID control algorithm formula is: In the formula, is the control output, is the temperature error, is the proportional gain, is the integral gain, is the differential gain, When the temperature inside the car deviates from the set temperature, the proportional term generates a control signal proportional to the error. The integral term accumulates past errors, is the differential term; Based on the control output, the temperature is adjusted; Humidity adjustment is performed based on the PID algorithm, and the air purification system is adjusted according to the air quality in the car. If the air quality is poor, the system will start the air purifier and turn on the fresh air system. When the air quality index exceeds the set threshold, the system automatically starts the purification function.

5. The automatic ventilation and heat dissipation system in the vehicle cabin according to claim 4, characterized in that: The hidden sunshade module specifically includes: Light sensing unit: monitors the light intensity outside the vehicle in real time, senses the external sunlight intensity, converts it into an electrical signal, and transmits it to the control unit; Signal processing and analysis unit: receives signals from the light sensor, performs data analysis, and determines whether the sunshade needs to be raised or lowered; Light threshold setting unit: The system sets a light intensity threshold. When the light intensity exceeds the set threshold, the system considers that sunlight needs to be blocked; Decision output unit: Based on the comparison between the sensor signal and the preset threshold, the control system determines whether the sunshade needs to be raised or lowered; PID control unit: finely adjusts the degree of raising and lowering of the sunshade based on the speed of light change and the current light intensity; Drive control unit: drives the raising and lowering of the sunshade after receiving the control signal. The position of the sunshade is usually controlled by an electric motor. When the external light intensity exceeds the set threshold, the control signal triggers the motor to start, driving the sunshade to rise and block the window. When the external light intensity drops below the set threshold, the control signal drives the motor to work in reverse, lowering the sunshade to allow more light to enter the car.

6. The automatic ventilation and heat dissipation system in the vehicle cabin according to claim 5, characterized in that: The optical rainfall sensor module specifically comprises: Light intensity collection unit: Use a light sensor to collect the light intensity of the external environment in real time. The light signal sensed by the light sensor is converted into an electrical signal, and the collected signal is transmitted to the signal processing unit; Rain detection unit: Use a rain sensor to detect whether there is rainfall. The sensor generates a signal by detecting the changes of raindrops falling on the sensor surface and transmits it to the control system. If the system detects that the rainfall reaches the threshold, the sunshade will automatically close; Decision-making and control unit: Control the sunshade according to the external light intensity and rainfall conditions; Sunshade control unit: controls the motor for raising and lowering the sunshade according to the judgment of the decision unit, and controls the signal to drive the motor to adjust the height and angle of the sunshade; User setting unit: allows users to set parameters.

7. The automatic ventilation and heat dissipation system in a vehicle cabin according to claim 6, characterized in that: The decision and control unit specifically includes: The system determines the raising and lowering status of the sunshade according to the external light intensity and rainfall conditions, and compares the received light intensity signal with the preset threshold. When the light intensity exceeds the set threshold, the system determines that the sunshade should block the sunlight. When the light intensity is low, the system will release the sunshade. When the system detects rain and slippery conditions, the sunshade automatically closes to prevent rain from entering the car.

8. The automatic ventilation and heat dissipation system in a vehicle cabin according to claim 7, characterized in that: The user setting unit specifically includes: The owner sets the light threshold, rain threshold, and automatic control mode on the vehicle touch screen, and selects the sunshade raising and lowering speed and response sensitivity settings; The system provides real-time feedback on the current light intensity, rainfall information, and the lifting and lowering status of the sunshade. When an abnormality occurs, the system provides a fault alarm. When the sunshade is fully opened or fully closed, the continuous load of the motor is reduced. If the system does not detect changes for a long time and the temperature in the car is suitable, it will automatically enter low-power standby mode. According to the power management system of the vehicle battery, the response frequency of the system is reduced when the power is low. The system records information on light intensity, rainfall data, the raising and lowering of sunshades and system control signals. When a sensor or actuator failure is detected, it will automatically alarm and provide an error code.

9. The automatic ventilation and heat dissipation system in a vehicle cabin according to claim 8, characterized in that: The control system module specifically includes: Vehicle status monitoring unit: ensures that the vehicle is stationary and the engine is turned off; Sensor data acquisition unit: obtains information from temperature sensor and light rainfall sensor; Analysis condition unit: determines whether ventilation and heat dissipation need to be started according to the temperature inside and outside the vehicle, light intensity and rainfall information; Ventilation and cooling control unit: automatically opens the windows, sunroof and starts the air conditioning system to adjust the temperature inside the car.

10. A method for automatic ventilation and heat dissipation in a car cabin, characterized in that: The automatic ventilation and heat dissipation method specifically includes: The system detects whether the vehicle is stationary to ensure that the conditions for starting automatic ventilation and heat dissipation are met; The in-car temperature sensor monitors the in-car temperature in real time. When the temperature exceeds 50°C, the automatic ventilation and heat dissipation function is triggered; The light and rain sensor detects the external light intensity, determines whether the sunlight is strong, and decides whether the sunshade needs to be adjusted; Automatically raise and lower the hidden sunshade according to the external light intensity to reduce the temperature inside the car; Start the automatic air conditioning module, open the car window, activate the air circulation system, and the air outlet adjustment module adjusts the wind speed and direction to blow air diagonally behind the car window; The control system continuously monitors the temperature inside the car. When the temperature inside the car returns to a comfortable range, it automatically turns off the ventilation and cooling functions and restores the windows and sunshades to their default states.

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