Commercial vehicle air conditioner control system

Abstract

The utility model relates to an air conditioner control system for a commercial vehicle, which comprises an air conditioner controller. The mixed air door motor, the internal and external circulation air door motor, the mode air door motor, the negative ion generator, the fan, the air blower, the compressor, the water valve motor, the three-state pressure switch, the cab internal and external temperature sensor and the cab internal and external PM2.5 sensor are in signal connection with the air conditioner controller. The air conditioner control system has a fresh air circulation function, an air volume adjusting function, an air outlet temperature adjusting function and a safe driving reminding function.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile automatic control, in particular to an air-conditioning control system for a commercial vehicle. Background Art

[0002] Commercial vehicle air conditioning is an indispensable device for vehicles; existing commercial vehicle air conditioning systems have the following problems:

[0003] 1. The air purification effect of traditional filters with filter elements will decrease with the use time, and is greatly affected by the use environment. The purification effect and service life will decrease with the decline of the air quality of the use environment. In addition, filters with filter elements need to be replaced regularly, and the vehicle maintenance cost is high;

[0004] 2. The motor that controls the air outlet position is affected by the air volume of the blower. When the air volume is large, the accuracy of the motor drive and the life of the motor will decrease with the use time. For the driver, the air outlet position affects the driving experience, and the short life of the motor increases the maintenance cost of the vehicle;

[0005] 3. The mixing damper is adjusted only according to the indoor temperature and the set temperature. Occasionally, sudden temperature changes may occur, affecting the driver's driving experience.

[0006] 4. The reminder method of only turning on the air conditioning cooling mode is not effective when the driver actively turns on the air conditioning cooling mode in hot weather. The reminder effect is greatly affected by temperature factors and driver behavior, and the reminder effect on vehicle drivers is unstable; Utility Model Content

[0007] The purpose of the utility model is to provide a commercial vehicle air conditioning control system to solve the above problems in view of the deficiencies in the prior art.

[0008] The utility model is realized by adopting the following technical solutions:

[0009] A commercial vehicle air-conditioning control system, characterized in that it includes an air-conditioning controller, an air-conditioning body, an indoor and outdoor temperature sensor of a cab, and an indoor and outdoor PM2.5 sensor of a cab, which are respectively connected to the air-conditioning controller by signals.

[0010] Preferably, the air conditioner body includes a negative ion generator and an internal and external circulation damper motor; the negative ion generator, the internal and external circulation damper motor, the indoor and outdoor temperature sensors and the indoor and outdoor PM2.5 sensors are all controlled and connected by the air conditioner controller.

[0011] Preferably, the air conditioner body includes a mode damper motor and a blower; the mode damper motor and the blower are both controlled and connected by an air conditioner controller.

[0012] Preferably, the air conditioner body includes a mixing damper motor; the mixing damper motor and the indoor and outdoor temperature sensors of the cab are controlled and connected by the air conditioner controller.

[0013] Preferably, the air conditioner body includes a mixing damper motor, a mode damper motor, a fan, a blower, a compressor, a water valve motor and a three-state pressure switch; the mixing damper motor, the mode damper motor, the fan, the blower, the compressor, the water valve motor and the three-state pressure switch are all controlled and connected by the air conditioner controller.

[0014] Preferably, it also includes a vehicle-mounted multimedia display screen; the air-conditioning controller is connected to the vehicle-mounted multimedia display screen via a CAN bus.

[0015] Compared with the prior art, the utility model has the following beneficial technical effects:

[0016] 1. The utility model can realize the fresh air circulation function. The air conditioning controller, negative ion generator, internal and external circulation damper motor, indoor and outdoor temperature sensors and indoor and outdoor PM2.5 sensors together constitute a fresh air circulation system, which reduces the PM2.5 concentration in the cab by combining air purification and internal and external circulation ventilation, effectively maintains the air quality in the cab, freshens the air, reduces the cost of cab air purification, and improves the driving experience;

[0017] 2. The utility model can realize the air volume adjustment function. The air conditioner controller, the mode damper motor and the blower together constitute the air volume adjustment system. The mode damper motor and the blower cooperate with each other to reduce the resistance during the operation of the mode damper motor and improve the position accuracy of the air conditioner outlet during the air volume change process, thereby improving the driver's comfort and reducing the loss of air conditioner components, thereby extending the service life of the vehicle;

[0018] 3. The utility model can realize the function of adjusting the air outlet temperature. The air conditioner controller, the mixing damper motor and the indoor and outdoor temperature sensors of the cab together constitute the air outlet temperature adjustment system. According to the indoor and outdoor temperature sensors of the cab, the air conditioner controller adaptively selects and controls the mixing damper motor to improve driving comfort.

[0019] 4. The utility model can realize the function of safe driving reminder. The air conditioning controller, mixing damper motor, mode damper motor, fan, blower, compressor, water valve motor and three-state pressure switch together constitute a safe driving reminder system, which uses strong wind of corresponding temperature to blow on the driver's face to remind the driver, improve driving safety, reduce road traffic safety hazards, make vehicle operation more intelligent, simple and safe, and link the fan to dissipate heat and cool the air conditioning system, thereby improving the reliability of the air conditioning system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is a principle block diagram of the commercial vehicle air conditioning control system of the utility model.

[0021] 1. Air conditioning controller; 2. Mixing damper motor; 3. Internal and external circulation damper motor; 4. Mode damper motor; 5. Negative ion generator; 6. Fan; 7. Blower; 8. Compressor; 9. Water valve motor; 10. Three-state pressure switch; 11. Cabin and indoor temperature sensor; 12. Cabin and indoor PM2.5 sensor; 13. On-board multimedia display. DETAILED DESCRIPTION

[0022] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are only for exemplary descriptions, and they are only schematic diagrams, not physical diagrams, and cannot be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts in the figures may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the figures may be omitted.

[0023] The same or similar numbers in the figures of the embodiments of the present invention correspond to the same or similar parts. In the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the figures, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the figures are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0024] like Figure 1 As shown: A commercial vehicle air-conditioning control system includes an air-conditioning controller 1, an air-conditioning body, a cab indoor and outdoor temperature sensor 11, and a cab indoor and outdoor PM2.5 sensor 12 respectively connected to the air-conditioning controller 1 by signals.

[0025] The air conditioner body provided by the utility model includes a negative ion generator 5, an internal and external circulation damper motor 3; together with an air conditioner controller 1, an indoor and outdoor temperature sensor 11 and an indoor and outdoor PM2.5 sensor 12, a fresh air circulation system is formed, wherein the negative ion generator 5, the internal and external circulation damper motor 3, the indoor and outdoor temperature sensor 11 and the indoor and outdoor PM2.5 sensor 12 are all controlled and connected by the air conditioner controller 1; the fresh air circulation function of the air conditioner can be realized.

[0026] The specific implementation of the fresh air circulation function of the air conditioner is as follows:

[0027] The air conditioning controller 1 detects the PM2.5 concentration in the cab through the PM2.5 sensor in the cab. When the PM2.5 concentration in the cab is too high and the negative ion generator 5 is not working, the negative ion generator 5 is turned on; when the PM2.5 concentration in the cab is normal and the negative ion generator 5 is working, the negative ion generator is turned off; and the above process is repeated;

[0028] The air-conditioning controller 1 detects the outdoor temperature of the cab through the outdoor temperature sensor of the cab. When the outdoor temperature of the cab is suitable, the air-conditioning controller 1 detects the PM2.5 concentration inside and outside the cab through the PM2.5 sensors inside and outside the cab. When the PM2.5 concentration in the cab is much greater than the PM2.5 concentration outside the cab, the air-conditioning controller 1 controls the internal and external circulation motor 3 to switch to the external circulation mode; when the PM2.5 concentration in the cab is not much greater than the PM2.5 concentration outside the cab, and the PM2.5 concentration in the cab is too high or the PM2.5 concentration outside the cab is too high, the air-conditioning controller 1 controls the internal and external circulation motor 3 to switch to the internal circulation mode; and repeats the above process; the PM2.5 concentration in the cab is reduced by combining air purification and internal and external circulation ventilation, effectively maintaining the air quality in the cab, refreshing the air, reducing the cost of cab air purification, and improving the driving experience.

[0029] The air conditioner body provided by the utility model includes a mode damper motor 4 and a blower 7, which together with the air conditioner controller 1 form an air volume adjustment system, wherein the mode damper motor 4 and the blower 7 are both controlled and connected by the air conditioner controller 1, and the air volume adjustment function of the air conditioner can be realized.

[0030] The specific implementation method of the air volume adjustment function of the air conditioner is as follows:

[0031] The air conditioning controller 1 detects whether the mode damper motor 4 needs to be driven. If not, the air volume of the blower 7 remains unchanged. If the mode damper motor 4 needs to be driven, the air volume of the blower 7 is determined. If the air volume of the blower 7 is small, it remains unchanged. If the air volume of the blower 7 is large, the air volume of the blower 7 is reduced to the expected value until the driving of the mode damper motor 4 ends and the air volume before the driving is restored. According to the driving state of the mode damper motor 4, the air volume of the blower is adjusted to reduce the resistance during the operation of the mode damper motor 4, improve the position accuracy of the air outlet of the air conditioning during the air volume change process, reduce the wear of air conditioning components while improving the driver's comfort, and extend the service life of the vehicle.

[0032] The air conditioner body provided by the utility model includes a mixing damper motor 2; together with the air conditioner controller 1 and the indoor and outdoor temperature sensors 11 of the cab, an air outlet temperature adjustment system is formed, wherein the mixing damper motor 2 and the indoor and outdoor temperature sensors 11 of the cab are connected and controlled by the air conditioner controller 1, so as to realize the air outlet temperature adjustment function of the air conditioner.

[0033] The specific implementation method of the air outlet temperature adjustment function of the air conditioner is as follows:

[0034] The seasonal attribute is determined by detecting the outdoor temperature of the cab by the outdoor temperature sensor, and the indoor temperature of the cab is detected by the indoor temperature sensor, and the air conditioning controller 1 controls the corresponding air outlet temperature of the mixing damper motor 2 to improve driving comfort.

[0035] The air conditioner body provided by the utility model includes a mixing damper motor 2, a mode damper motor 4, a fan 6, a blower 7, a compressor 8, a water valve motor 9 and a three-state pressure switch 10, which together with the air conditioner controller 1 constitute a safe driving reminder system; wherein, the mixing damper motor 2, the mode damper motor 4, the fan 6, the blower 7, the compressor 8, the water valve motor 9 and the three-state pressure switch 10 are all controlled and connected by the air conditioner controller 1, which can realize the safe driving reminder function of the air conditioner.

[0036] The specific implementation of the safe driving reminder function of the air conditioner is as follows:

[0037] The air conditioning controller 1 detects the cold air or hot air mode of the air conditioning through the compressor 8 and the water valve motor 9. If the air conditioning is in the cold air mode, the air conditioning controller 1 controls to turn off the compressor 8, turn on the water valve motor 9, and drive the mixing damper motor 2 to adjust the air outlet temperature of the air conditioning to the highest; otherwise, when the air conditioning is in the warm air mode or the normal temperature mode, the air conditioning controller 1 turns on the compressor 8, turns off the water valve motor 9, and drives the mixing damper motor 2 to adjust the air outlet temperature of the air conditioning to the lowest; the blowing mode of the mode damper motor 4 is turned on. When the driver is driving tired, strong wind of corresponding temperature is used to blow on the face to remind the driver, thereby improving driving safety, reducing road traffic safety hazards, and making vehicle operation more intelligent, simple and safe.

[0038] The air conditioning controller 1 detects the refrigerant pressure state through the signal of the three-state pressure switch 10. If the refrigerant pressure is abnormal, the fan 6 is turned on to dissipate heat and cool the air conditioning system, thereby improving the reliability of the air conditioning system.

[0039] The utility model also provides a vehicle-mounted multimedia display screen 13; the air conditioning controller 1 is connected to the vehicle-mounted multimedia display screen 13 via a CAN bus, which can realize data interaction and meet the operation requirements of the driver. Optionally, the vehicle-mounted multimedia display screen 13 can be linked to a vehicle-mounted camera, and receive the driver's fatigue driving or dangerous driving signal through the vehicle-mounted camera, and then use the safe driving function of the air conditioning control system to remind the driver.

[0040] It should be noted that the mixing damper motor 2 is used to control the air outlet temperature of the air conditioner, the internal and external circulation damper motor 3 is used for the internal and external circulation of the air conditioner, the mode damper motor 4 is used to control the air outlet direction of the air conditioner, the negative ion generator 5 is used to generate air negative ions, the blower 7 is used to control the air volume of the air conditioner, the compressor 8 is used for air conditioning cooling, the water valve motor 9 is used for air conditioning heating, the three-state pressure switch 10 is used to detect the air conditioning refrigerant pressure, the cab indoor and outdoor temperature sensor 11 is used to detect the cab indoor and outdoor temperature, and the cab indoor and outdoor PM2.5 sensor 12 is used to detect particulate matter in the atmosphere inside and outside the cab.

[0041] The above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model. The technology, shape, and structure that are not described in detail in the utility model are all well-known technologies.

Claims

1. A commercial vehicle air conditioning control system, characterized in that: It comprises an air conditioning controller (1), an air conditioning body, an indoor and outdoor temperature sensor (11), and an indoor and outdoor PM2.5 sensor (12) respectively connected to the air conditioning controller (1) by signals; The air conditioner body comprises a negative ion generator (5) and an internal and external circulation damper motor (3); the negative ion generator (5), the internal and external circulation damper motor (3), the indoor and outdoor temperature sensor (11) and the indoor and outdoor PM2.5 sensor (12) are all controlled and connected by an air conditioner controller (1); The air conditioner body further comprises a mode damper motor (4) and a blower (7); the mode damper motor (4) and the blower (7) are both controlled and connected by the air conditioner controller (1); The air conditioner body further comprises a mixing damper motor (2); the mixing damper motor (2) is controlled and connected by the air conditioner controller (1); The air conditioner body further comprises a fan (6), a compressor (8), a water valve motor (9) and a three-state pressure switch (10); the fan (6), the compressor (8), the water valve motor (9) and the three-state pressure switch (10) are all controlled and connected by the air conditioner controller (1).

2. The commercial vehicle air conditioning control system according to claim 1, characterized in that: It also includes an on-board multimedia display screen; the air-conditioning controller (1) is connected to the on-board multimedia display screen (13) via a CAN bus.

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