A logistics vehicle air conditioning front section blowing and cooling detection and control system

Abstract

The present invention discloses a front-stage air blowing and cooling detection and control system for a logistics vehicle air conditioner. When heating in winter, a three-way pipe is installed at the air inlet position of the PTC and the blower fan to realize the switching of internal and external circulation and the mixing of hot and cold air. When the power of the whole machine is constant, the blower fan with adjustable speed and air volume is selected to change the fan flow and the proportion of cold air to obtain a suitable warm air outlet temperature, thereby achieving the purpose of cooling and changing the burning discomfort caused by the outlet temperature. By providing a detection system, an air conditioning controller, a cloud server and a 4G module, the acquisition of the logistics vehicle air conditioning environmental parameters and the cloud function are realized. The foot blowing temperature status in the vehicle is monitored in real time through the network and mobile APP device end, thereby improving the intelligence of the logistics vehicle air conditioning control system, saving energy consumption of the car air conditioner while maintaining the comfort of the passenger compartment, and achieving the function of energy saving and environmental protection.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile air-conditioning, and in particular to a front-end air blowing and cooling detection and control system for an air-conditioning system in a logistics vehicle. Background Art

[0002] With the development of the automobile industry, people have higher and higher requirements for the thermal comfort of automobile passenger compartments. In recent years, electric vehicles have gradually become popular, and the research on cooling and heating of electric vehicle passenger compartments has received more and more attention. During cooling in summer, the passenger compartment of the car absorbs heat from the outside, and the temperature inside the car rises. The higher temperature inside the car will seriously affect the thermal comfort of the passengers. The cooling capacity generated by air conditioning balances the heat received by the passenger compartment, which greatly improves the comfort of the passenger compartment.

[0003] However, the temperature in the car's passenger compartment is low in winter, and the heating uses a PTC heater. The heat generated by the air conditioner is blown into the passenger compartment through the fan, which will increase the temperature of the passenger compartment. In the foot blowing mode, the legs of the driver and co-driver are close to the air outlet, and the air supply temperature can reach up to 95°C. The legs have a strong "burning sensation", making the passenger compartment uncomfortable and posing a driving safety hazard.

[0004] Therefore, the present invention proposes a front-end air blowing and cooling detection and control system for logistics vehicle air conditioners to solve the problem of burning sensation and leg discomfort caused by excessively high foot temperature in the passenger compartment and driver's seat when the logistics vehicle air conditioner is in heating mode. Summary of the Invention

[0005] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a front-end air blowing and cooling detection and control system for a logistics vehicle air conditioner, which aims to solve the problem of burning sensation and leg discomfort caused by excessively high foot temperature in the passenger compartment and driver's seat when the logistics vehicle air conditioner is in heating mode.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a front-end air blowing and cooling detection and control system for a logistics vehicle air conditioner, comprising:

[0007] A logistics vehicle control system, comprising a PTC heater, a three-way pipe, and a blower fan, wherein the PTC heater, the three-way pipe, and the blower fan are connected in sequence;

[0008] A detection system for acquiring signal data from the logistics vehicle control system; the detection system includes a temperature sensor, a battery, and a detection circuit for detecting battery and high-voltage voltage values ​​and compressor current values;

[0009] The air-conditioning control system includes an air-conditioning controller, a 4G module and a cloud server. The 4G module is communicatively connected to the cloud server. The air-conditioning controller is used to receive and process signals output by the detection system and output control signals. The air-conditioning controller includes a main controller and a drive controller. The main controller is connected to the temperature sensor, PTC heater and blower fan, and the drive controller is connected to the fan and compressor.

[0010] As a further improvement of the present invention: the main controller is used to control the PTC heater, control the blower fan, receive and process the output signal of the temperature sensing package, and receive and process the output signal of the battery.

[0011] As a further improvement of the present invention: the drive controller is used to drive the fan and compressor loads.

[0012] As a further improvement of the present invention: the air-conditioning control system also includes a mobile APP device end, and the mobile APP device end is communicatively connected to the 4G module and the cloud server.

[0013] As a further improvement of the present invention, the mobile app device is provided with a data receiving interface. The 4G module uploads and stores the collected foot temperature and blower fan speed data in the vehicle to a cloud server database via a cellular wireless network. After statistical analysis, the data is transmitted to the mobile app device. The user then logs into the app and clicks on the foot temperature and blower fan speed fields in the app to access the data receiving interface. The data receiving interface displays real-time foot temperature and blower fan speed data, enabling data communication between the air conditioning controller, the cloud server, and the mobile device, thereby realizing detection and intelligent control of air cooling.

[0014] As a further improvement of the present invention: the main control controller is arranged on the main control board.

[0015] As a further improvement of the present invention: the drive controller is arranged on the drive board.

[0016] As a further improvement of the present invention: the main control is communicatively connected to the drive board, and the drive controller is communicatively connected to the main control board.

[0017] As a further improvement of the present invention: the main controller performs 485 communication with the driving board.

[0018] As a further improvement of the present invention, the blower is a speed-adjustable blower. By selecting a speed-adjustable blower, the blower speed is changed, and the proportion of cold air is changed, thereby achieving a mixture of hot and cold air, thereby obtaining a suitable warm air outlet temperature and reducing the burning discomfort caused by the outlet temperature.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. When the logistics vehicle air conditioner of the present invention is used for heating in winter, a three-way pipe is installed at the air inlet position of the PTC and the blower fan to realize the switching of internal and external circulation and the mixing of hot and cold air; when the power of the whole machine is constant, by selecting a blower fan with adjustable speed and air volume and then changing the fan flow rate, the proportion of cold air is changed to obtain a suitable warm air outlet temperature, thereby achieving the purpose of cooling and changing the burning discomfort caused by the outlet temperature.

[0021] 2. The present invention is equipped with a detection system, an air-conditioning controller, a cloud server and a 4G module to obtain the air-conditioning environmental parameters of the logistics vehicle and upload them to the cloud. The temperature status of the foot in the vehicle is monitored in real time through the network and mobile APP devices, thereby improving the intelligence of the logistics vehicle's air-conditioning control system. While maintaining the comfort of the passenger compartment, it saves energy consumption of the car air-conditioning, achieving energy-saving and environmental protection functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a diagram of the air conditioning and heating system of the logistics vehicle of the present invention.

[0023] Figure 2 It is a schematic diagram of the front-end air blowing and cooling detection and control system of the air conditioner in a logistics vehicle according to the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] See also Figure 1-2 , a logistics vehicle air conditioning front section blowing and cooling detection and control system, including:

[0026] A logistics vehicle control system, comprising a PTC heater, a three-way pipe, and a blower fan, wherein the PTC heater, the three-way pipe, and the blower fan are connected in sequence;

[0027] A detection system for acquiring signal data from the logistics vehicle control system; the detection system includes a temperature sensor, a battery, and a detection circuit for detecting battery and high-voltage voltage values ​​and compressor current values;

[0028] The air-conditioning control system includes an air-conditioning controller, a 4G module and a cloud server. The 4G module is communicatively connected to the cloud server. The air-conditioning controller is used to receive and process signals output by the detection system and output control signals. The air-conditioning controller includes a main controller and a drive controller. The main controller is connected to the temperature sensor, PTC heater and blower fan, and the drive controller is connected to the fan and compressor.

[0029] The main controller is used to control the PTC heater, control the blower fan, receive and process the output signal of the temperature sensor package, and receive and process the output signal of the battery; the drive controller is used to drive the fan and compressor load.

[0030] When the logistics vehicle air conditioner is heating in winter, a three-way pipe is installed at the air inlet of the PTC and blower fan to realize the switching of internal and external circulation and the mixing of hot and cold air; when the power of the whole machine is constant, by selecting a blower fan with adjustable speed and air volume and then changing the fan flow, the proportion of cold air is changed to obtain the appropriate warm air outlet temperature, thereby achieving the purpose of cooling and changing the burning discomfort caused by the outlet temperature.

[0031] The air-conditioning control system also includes a mobile APP device end, and the mobile APP device end is communicatively connected to the 4G module and the cloud server.

[0032] The mobile app device is provided with a data receiving interface. The 4G module uploads and stores the collected foot temperature and blower fan speed data in the vehicle to a cloud server database via a cellular wireless network. After statistical analysis, the data is transmitted to the mobile app device. The user then logs in to the app, clicks on the foot temperature and blower fan speed fields in the app, and is connected to the data receiving interface. The data receiving interface displays real-time foot temperature and blower fan speed data, enabling data communication between the air conditioning controller, the cloud server, and the mobile device, thereby realizing detection and intelligent control of air cooling.

[0033] Through the detection system, air-conditioning controller, cloud server and 4G module, the air-conditioning environmental parameters of the logistics vehicle can be acquired and uploaded to the cloud. The foot-blowing temperature status in the vehicle can be monitored in real time through the network and mobile APP devices, which improves the intelligence of the air-conditioning control system of the logistics vehicle. While maintaining the comfort of the passenger compartment, it saves energy consumption of the car air-conditioning, achieving energy-saving and environmental protection functions.

[0034] The main control controller is arranged on the main control board, and the drive controller is arranged on the drive board. The main control controller is communicatively connected to the drive board, and the drive controller is communicatively connected to the main control board.

[0035] The main controller communicates with the driver board via 485.

[0036] The blower fan is a blower fan with adjustable wind speed. By selecting the blower fan with adjustable wind speed and changing the blower speed, the proportion of cold air is changed to achieve a mixture of hot and cold air, thereby obtaining a suitable warm air outlet temperature and changing the burning discomfort caused by the outlet temperature.

[0037] The other end of the blower is communicated with an air duct, and the other end of the air duct is communicated with an air inlet of a passenger compartment or a cockpit.

[0038] The air conditioning control system further includes a communication circuit, which is used for 485 communication or CAN communication.

[0039] The front-end air blowing and cooling detection and control system of the logistics vehicle air conditioner of the present invention can ensure that the foot temperature of the logistics vehicle meets the comfort requirements of the cockpit and the passenger compartment when the air conditioner is heating in winter, avoiding the occurrence of driving hazards. It solves the problem that when the air conditioner of the logistics vehicle is in heating mode, the foot temperature of the passenger compartment and the driver's seat is not too high, causing a burning sensation and leg discomfort.

[0040] The air blowing and cooling detection and control system for the front section of the air conditioner of the logistics vehicle of the present invention improves the intelligence level of the air conditioner control of the logistics vehicle, achieves the effect of reducing energy consumption, and solves the problems of low intelligent control of the air conditioner of the logistics vehicle and excessive energy consumption during the operation of the air conditioner.

[0041] Working principle of the present invention:

[0042] like Figure 1 As shown, in winter, the air conditioner of the logistics vehicle is heating, and the cold air in the external environment is heated by the PTC heater. At this time, the cold air is heated into hot air and the hot air is sent to each air inlet through the air duct by the blower fan. The hot air blown into the passenger compartment heats the passenger compartment, realizing the mixing of cold and hot air. The hot air reaches the legs through the passenger compartment or the cockpit, and the legs will feel a significant increase in temperature. If the temperature is too high, leg discomfort will occur.

[0043] When the power of the whole machine is constant, the wind speed of the fan can be changed by selecting a blower with adjustable wind speed. By changing the proportion of cold air, a mixture of hot and cold air is achieved to obtain a suitable warm air outlet temperature and change the burning discomfort caused by the outlet temperature.

[0044] like Figure 2 As shown, in Figure 1On this basis, a three-way pipe is installed at the air inlet of the PTC heater and the blower fan to better achieve the mixing of cold and hot air.

[0045] in addition, Figure 2 The dotted part shows the air-conditioning front section blowing and cooling detection and control system. The air-conditioning front section blowing and cooling detection and control system consists of a detection system and an air-conditioning control system. The air-conditioning controller integrates a main controller and a drive controller. The main controller mainly receives and processes the temperature sensor detection data, controls the PTC heater, controls the blower fan, receives and processes the battery voltage and current detection data, controls the 4G module, and communicates with the drive board through 485. In addition to communicating with the main control board, the drive controller also drives the fan and compressor load. The detection circuit is used to detect the battery and strong voltage values ​​and the compressor current value. The communication circuit It mainly carries out 485 or CAN communication, and the 4G module control is integrated in the main control board. The 4G module uploads and stores the collected data of foot temperature and blower fan speed in the car to the database of Gree Cloud Server with the help of cellular wireless network. After statistical analysis, the data is transmitted to the mobile APP device. Log in to the APP, click on the foot temperature and blower fan speed of the APP, and connect to the data receiving interface. In this way, the data receiving interface can display the real-time data of foot temperature and blower fan speed, realize data communication between the air-conditioning controller and the cloud server and mobile devices, thereby realizing the detection and intelligent control of blowing and cooling.

[0046] When you just get into the car and turn on the car air conditioner, the blower fan needs to run at maximum power. Since the air output of the air conditioner is positively correlated with the speed of the blower fan, adjusting the air environment inside the car in the shortest time can allow the human body to enter a comfortable state in the shortest time. After the air conditioner is started, the blower fan also needs to run to a stable state in a short time. This is very important for improving the air environment inside the car and making the temperature inside the car reach the most comfortable state. The faster the blower fan speed, the greater the air output at the air conditioner damper, and the stronger the feeling of cold or heat. The air conditioning controller controls the blower fan to obtain the temperature and humidity of the car cabin, real-time wind speed, heat dissipation and other parameters under complex vehicle conditions, and processes the parameters with software algorithm strategies, changes the proportion of cold air and cooperates with the three-way pipe to obtain the appropriate warm air outlet temperature. When the air conditioner is started more stably, it will not cause discomfort to the human body, thereby achieving the goal of lowering the temperature of the feet.

[0047] Implementation Case 1:

[0048] A front-end air-blowing and cooling detection and control system for a logistics vehicle air conditioner comprises: a logistics vehicle control system comprising a PTC heater, a three-way pipe, and a blower fan, the PTC heater, three-way pipe, and blower fan being connected in sequence; a detection system for acquiring signal data from the logistics vehicle control system; the detection system comprising a temperature sensor, a battery, and a detection circuit for detecting the battery and high-voltage voltages, as well as the compressor current; an air conditioning control system comprising an air conditioning controller, a 4G module, and a cloud server, the 4G module being communicatively connected to the cloud server; the air conditioning controller for receiving and processing signals output by the detection system and outputting control signals; the air conditioning controller comprising a main controller and a drive controller, the main controller being connected to the temperature sensor, the PTC heater, and the blower fan, and the drive controller being connected to the fan and compressor. The main controller is used to control the PTC heater, the blower fan, receive and process the output signals of the temperature sensor, and the battery; and the drive controller is used to drive the fan and compressor loads. When the logistics vehicle air conditioner is heating in winter, a three-way pipe is installed at the air inlet of the PTC and blower fan to realize the switching of internal and external circulation and the mixing of hot and cold air; when the power of the whole machine is constant, by selecting a blower fan with adjustable speed and air volume and then changing the fan flow, the proportion of cold air is changed to obtain the appropriate warm air outlet temperature, thereby achieving the purpose of cooling and changing the burning discomfort caused by the outlet temperature.

[0049] Implementation Case 2:

[0050] A front-end air-blowing and cooling detection and control system for a logistics vehicle air conditioner comprises: a logistics vehicle control system comprising a PTC heater, a three-way pipe, and a blower fan, the PTC heater, three-way pipe, and blower fan being connected in sequence; a detection system for acquiring signal data from the logistics vehicle control system; the detection system comprising a temperature sensor, a battery, and a detection circuit for detecting the battery and high-voltage voltages, as well as the compressor current; an air conditioning control system comprising an air conditioning controller, a 4G module, and a cloud server, the 4G module being communicatively connected to the cloud server; the air conditioning controller for receiving and processing signals output by the detection system and outputting control signals; the air conditioning controller comprising a main controller and a drive controller, the main controller being connected to the temperature sensor, the PTC heater, and the blower fan, and the drive controller being connected to the fan and compressor. The main controller is used to control the PTC heater, the blower fan, receive and process the output signals of the temperature sensor, and the battery; and the drive controller is used to drive the fan and compressor loads.

[0051] The air conditioning control system also includes a mobile APP device, which is connected to the 4G module and the cloud server. The mobile APP device is provided with a data receiving interface. The 4G module uploads and stores the collected foot temperature and blower fan speed data in the car to the cloud server database via the cellular wireless network. After statistical analysis, the data is transmitted to the mobile APP device. The user logs in to the APP, clicks on the foot temperature and blower fan speed in the APP, and is connected to the data receiving interface. The data receiving interface can display real-time data of foot temperature and blower fan speed, realizing data communication between the air conditioning controller and the cloud server and mobile device, thereby realizing the detection and intelligent control of air cooling. Through the detection system, air conditioning controller, cloud server and 4G module, the air conditioning environmental parameters of the logistics vehicle are acquired and uploaded to the cloud. The foot temperature status in the vehicle is monitored in real time through the network and the mobile APP device, which improves the intelligence of the logistics vehicle air conditioning control system, while maintaining the comfort of the passenger compartment while saving energy consumption of the car air conditioning, achieving energy-saving and environmental protection functions. The main control is arranged on the main control board, and the drive controller is arranged on the drive board. The main control is connected to the drive board for communication, and the drive controller is connected to the main control board for communication. The main control is connected to the drive board for communication via 485. The blower is a blower with adjustable wind speed. By selecting a blower with adjustable wind speed to change the wind speed of the fan, and by changing the proportion of cold air, a mixture of hot and cold air is achieved to obtain a suitable warm air outlet temperature and change the burning discomfort caused by the outlet temperature. The other end of the blower is connected to the air duct, and the other end of the air duct is connected to the air inlet of the passenger compartment or the cockpit. The air conditioning control system also includes a communication circuit, and the communication circuit is used for 485 communication or CAN communication.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A logistics vehicle air conditioning front section blowing and cooling detection and control system, characterized by: include: A logistics vehicle control system, comprising a PTC heater, a three-way pipe, and a blower fan, wherein the PTC heater, the three-way pipe, and the blower fan are connected in sequence; A detection system for acquiring signal data from the logistics vehicle control system; the detection system includes a temperature sensor, a battery, and a detection circuit for detecting battery and high-voltage voltage values ​​and compressor current values; The air-conditioning control system includes an air-conditioning controller, a 4G module and a cloud server. The 4G module is communicatively connected to the cloud server. The air-conditioning controller is used to receive and process signals output by the detection system and output control signals. The air-conditioning controller includes a main controller and a drive controller. The main controller is connected to the temperature sensor, PTC heater and blower fan, and the drive controller is connected to the fan and compressor.

2. A logistics vehicle air conditioning front section air blowing and cooling detection and control system according to claim 1, characterized in that: The main controller is used to control the PTC heater, control the blower fan, receive and process the output signal of the temperature sensor package, and receive and process the output signal of the battery.

3. A logistics vehicle air conditioning front section air blowing and cooling detection and control system according to claim 2, characterized in that: The drive controller is used to drive the fan and compressor loads.

4. A logistics vehicle air conditioning front section air blowing and cooling detection and control system according to claim 1, characterized in that: The air-conditioning control system also includes a mobile APP device end, and the mobile APP device end is communicatively connected to the 4G module and the cloud server.

5. A logistics vehicle air conditioning front section air blowing and cooling detection and control system according to claim 4, characterized in that: The mobile APP device is provided with a data receiving interface.

6. The front-stage air blowing and cooling detection and control system for a logistics vehicle air conditioner according to claim 1, characterized in that: The main controller is located on the main control board.

7. A logistics vehicle air conditioning front section air blowing and cooling detection and control system according to claim 6, characterized in that: The drive controller is arranged on the drive board.

8. A logistics vehicle air conditioning front section air blowing and cooling detection and control system according to claim 7, characterized in that: The main control board is in communication with the driving board, and the driving controller is in communication with the main control board.

9. A logistics vehicle air conditioning front section air blowing and cooling detection and control system according to claim 8, characterized in that: The main controller communicates with the driver board via 485.

10. The front section air blowing and cooling detection and control system for the air conditioner of a logistics vehicle according to claim 1, characterized in that: The blower fan is a blower fan with adjustable wind speed.

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