CN110901336A - Vehicle-mounted air conditioner breeze system based on memory alloy control valve air pump and control method - Google Patents
Vehicle-mounted air conditioner breeze system based on memory alloy control valve air pump and control method Download PDFInfo
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- CN110901336A CN110901336A CN201911094124.XA CN201911094124A CN110901336A CN 110901336 A CN110901336 A CN 110901336A CN 201911094124 A CN201911094124 A CN 201911094124A CN 110901336 A CN110901336 A CN 110901336A
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- 229910001285 shape-memory alloy Inorganic materials 0.000 title claims abstract description 102
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000003990 capacitor Substances 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 abstract description 15
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004378 air conditioning Methods 0.000 description 6
- 238000007664 blowing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 206010062519 Poor quality sleep Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
Abstract
The invention relates to the technical field of vehicle-mounted air conditioners, in particular to a vehicle-mounted air conditioner breeze system based on a memory alloy control valve air pump and a control method. A vehicle-mounted air conditioner breeze system based on a memory alloy control valve air pump is characterized in that: a control panel in the memory alloy control valve air pump is connected with a single chip microcomputer through a line, and the single chip microcomputer is connected with a CAN controller through a line; the air outlet of the vehicle-mounted air conditioner air outlet system is connected with the air inlets of the memory alloy control valve air pumps, and the air outlets of the memory alloy control valve air pumps are respectively connected with the breeze pipelines; the CAN controller is respectively connected with the CAN bus and the LIN bus; the breeze pipelines are respectively embedded in the automotive trim; the control board comprises a transistor driving module. Compared with the prior art, the vehicle-mounted air conditioner breeze system based on the memory alloy control valve air pump and the control method are provided, and the vehicle-mounted air conditioner breeze system based on the memory alloy control valve air pump technology further intelligently and dynamically adjusts a vehicle-mounted air conditioner ventilation system.
Description
Technical Field
The invention relates to the technical field of vehicle-mounted air conditioners, in particular to a vehicle-mounted air conditioner breeze system based on a memory alloy control valve air pump and a control method.
Background
The comfort of the current automobile is more and more important, and the vehicle-mounted air conditioning and ventilating system greatly influences the riding comfort. The control of traditional vehicle air conditioner air supply mode and wind direction mainly realizes through motor drive air door to different positions, for example air conditioning system temperature control, realizes the selection of temperature by the change of temperature knob control potentiometre resistance, and the control of temperature realizes through the motor position of control mixing air door, and different air door positions represent different temperatures, and the amount of wind gets into in the car through several concentrated vents. Although the wind speed and the wind direction are optimally adjusted by adopting a comfort algorithm through the air conditioner controller. But because the air outlet is large and the position is fixed, the passenger comfort reduction caused by the direct blowing of cold air and hot air and the blowing noise generated when the air quantity is large are avoided.
Disclosure of Invention
The invention provides a vehicle-mounted air conditioner breeze system based on a memory alloy control valve air pump and a control method thereof, aiming at overcoming the defects of the prior art. The air conditioning air is dynamically distributed according to the operation mode by controlling a breeze pipeline arranged in the vehicle, so that the direct blowing of strong wind at an air outlet in the vehicle is avoided. The memory alloy control valve air pump is a technology for controlling the opening and closing of a ventilation valve in a mode of accurately controlling metal deformation. Compared with the traditional electromagnetic valve, the memory alloy control valve air pump has the advantages of small volume, low noise, less electromagnetic interference and easy and accurate control, and is more suitable for the design of a breeze system of an air conditioner.
In order to realize the purpose, the vehicle-mounted air conditioner breeze system based on the memory alloy control valve air pump is designed, and comprises the memory alloy control valve air pump, a single chip microcomputer, a CAN controller, a transistor driving module and a vehicle-mounted air conditioner air outlet system, and is characterized in that: a control panel in the memory alloy control valve air pump is connected with a single chip microcomputer through a line, and the single chip microcomputer is connected with a CAN controller through a line; the air outlet of the vehicle-mounted air conditioner air outlet system is connected with the air inlets of the memory alloy control valve air pumps, and the air outlets of the memory alloy control valve air pumps are respectively connected with the breeze pipelines; the CAN controller is respectively connected with the CAN bus and the LIN bus; the breeze pipelines are respectively embedded in the automotive trim; the control panel comprises a transistor driving module.
The circuit of the system comprises a single chip microcomputer, a CAN controller, a microwave circuit, a transistor driving module, a power chip and a filter circuit, wherein one end of the power chip is grounded, the other end of the power chip is connected with one end of the filter circuit, the other end of the filter circuit is respectively connected with the cathodes of a diode I and a diode II, the anodes of the diode I and the diode II are respectively connected with a battery connector and an ignition signal connector, and a diode III is connected between the diode I and the diode II; the ignition awakening interrupt port of the single chip microcomputer is respectively connected with one end of a first resistor and one end of a second resistor, the other end of the second resistor is grounded, the other end of the first resistor is respectively connected with the cathode of a second diode and one end of a third resistor, the other end of the third resistor is respectively connected with an AD port with analog-to-digital conversion and one end of a fourth resistor of the single chip microcomputer, and the other end of the fourth resistor is grounded; the analog port of the singlechip is connected with one end of a resistor five, the other end of the resistor five is respectively connected with one end of a resistor six, a resistor seven and one end of a capacitor one, the other end of the resistor six is connected with 5V voltage, and the other ends of the resistor seven and the capacitor one are combined and grounded; the second analog port of the singlechip is connected with one end of an eighth resistor, the other end of the eighth resistor is respectively connected with a ninth resistor, a tenth resistor and one end of a second capacitor, the other end of the ninth resistor is connected with 5V voltage, and the tenth resistor and the other end of the second capacitor are merged and grounded; the analog port III of the single chip microcomputer is connected with one end of a resistor eleven, the other end of the resistor eleven is respectively connected with one end of a resistor twelve, a resistor thirteen and one end of a capacitor III, the other end of the resistor twelve is connected with 5V voltage, and the other ends of the resistor thirteen and the capacitor III are combined and grounded; the IO port of the single chip microcomputer is connected with one end of a resistor fourteen and one end of a resistor fifteen respectively, the other end of the resistor fourteen is connected with 5V voltage, the other end of the resistor fifteen is connected with the anode of a diode IV, and the cathode of the diode IV is connected with a digital switch; the first CAN controller is connected with one end of the first CAN transceiver through RX and TX ports, and the other end of the first CAN transceiver is connected with the LIN bus connector; the CAN controller II is connected with one end of a CAN transceiver II through RX and TX ports, and the other end of the CAN transceiver II is connected with a CAN bus connector; the pulse width modulation port of the singlechip is connected with one end of a resistor twenty, the other end of the resistor twenty is respectively connected with a resistor twenty-one and one end of the transistor driving module, and the other end of the resistor twenty-one is grounded; the other end of the transistor driving module controls the valve air pump through the memory alloy.
The model of the power supply chip is 4275; the type of the single chip microcomputer is S32K 144; the model of the CAN transceiver I is TJA 1021; the model number of the CAN transceiver II is TJA 1044.
The memory alloy control valve air pump comprises an air pump, an upper cover and a shell, wherein the top of the air pump is connected with the shell, the top of an air flow channel positioned in the center of the shell is provided with a diaphragm, and the upper cover is connected above the shell; the upper cover and the shell are directly provided with a control panel; the control panel comprises a circuit board, a contact pin, a buckle, a spring piece, a shape memory alloy wire and a sealing gasket, wherein the spring piece is connected to the front side of the circuit board, one side of the spring piece is connected with the sealing gasket, the spring piece positioned below the sealing gasket is connected with one end of the shape memory alloy wire, and the other end of the shape memory alloy wire is connected with the circuit board through the buckle; the circuit board at the rear side of the spring piece is provided with a plurality of contact pins.
The upper cover comprises an upper cover plate, a shell cavity, a diaphragm protective cover and a contact pin protection mechanism, wherein the shell cavity is arranged on the upper cover plate, and the contact pin protection mechanism is arranged on the rear side of the shell cavity; a diaphragm protective cover is arranged on the upper cover plate positioned between the housing cavity and the contact pin protection mechanism; the spring piece is of a Z-shaped structure, one end of the spring piece is positioned above the front part of the circuit board, and a sealing gasket is arranged above the other end of the spring piece; one end of the shape memory alloy wire is connected with the bottom of the other end of the spring piece, and the other end of the shape memory alloy wire is connected with the buckle; the shape memory alloy wire is of a runway-shaped structure, and two ends of the shape memory alloy wire are of arc-shaped structures.
The control method comprises the following specific processes:
(1) initializing a flow;
(2) a control board in the memory alloy control valve air pump is sent to a CAN or LIN transceiver for signal initialization;
(3) judging whether an air conditioner controller in the automobile returns to initialization or not, if so, enabling a control panel in the memory alloy control valve air pump to enter a success state, and if not, ending;
(4) a control plate in the air pump of the memory alloy control valve enters a successful state;
(5) preparing a control plate in the memory alloy control valve air pump;
(6) judging whether the mode is a breeze mode 1, if so, controlling the valve air pump to perform a breeze valve system mode by the memory alloy, otherwise, judging whether the mode is a breeze mode n;
(7) the memory alloy control valve air pump carries out a breeze valve system mode;
(8) judging whether the time is overtime for 60 seconds, if so, judging whether the time is in a breeze mode n, and if not, entering and exiting the step (7);
(9) judging whether the mode is a breeze mode n, if so, controlling the valve air pump to perform a breeze valve system mode by the memory alloy, and otherwise, performing the step (6);
(10) the memory alloy control valve air pump carries out a breeze valve system mode;
(11) judging whether the time is overtime for 60 seconds, if so, judging whether the operation is stopped, otherwise, performing the step (10);
(12) judging whether the operation is stopped, if so, successfully exiting, otherwise, continuing the step (5);
(13) and (6) ending.
Compared with the prior art, the invention provides the vehicle-mounted air conditioner breeze system based on the memory alloy control valve air pump and the control method thereof, and the vehicle-mounted air conditioner breeze system based on the memory alloy control valve air pump technology further intelligently and dynamically adjusts the vehicle-mounted air conditioner ventilation system. The air conditioning air is dynamically distributed according to the operation mode by controlling a breeze pipeline arranged in the vehicle, so that the direct blowing of strong wind at an air outlet in the vehicle is avoided. The memory alloy control valve air pump is a technology for controlling the opening and closing of a ventilation valve in a mode of accurately controlling metal deformation. Compared with the traditional electromagnetic valve, the memory alloy control valve air pump has the advantages of small volume, low noise, less electromagnetic interference and easy and accurate control, and is more suitable for the design of a breeze system of an air conditioner.
Drawings
Fig. 1 is a block diagram of the module connection according to the present invention.
FIG. 2 is a circuit diagram of the present invention.
FIG. 3 is a software flow diagram of the present invention.
FIG. 4 is a schematic view of the air pump structure of the memory alloy control valve.
Fig. 5 is a schematic structural diagram of the control board in fig. 4.
Detailed Description
The invention is further illustrated below with reference to the accompanying drawings.
As shown in figure 1, the vehicle-mounted air conditioner breeze system based on the memory alloy control valve air pump comprises the memory alloy control valve air pump, a single chip microcomputer, a CAN controller, a transistor driving module and a vehicle-mounted air conditioner air outlet system, and is characterized in that: a control panel in the memory alloy control valve air pump is connected with a single chip microcomputer through a line, and the single chip microcomputer is connected with a CAN controller through a line; the air outlet of the vehicle-mounted air conditioner air outlet system is connected with the air inlets of the memory alloy control valve air pumps, and the air outlets of the memory alloy control valve air pumps are respectively connected with the breeze pipelines; the CAN controller is respectively connected with the CAN bus and the LIN bus; the breeze pipelines are respectively embedded in the automotive trim; the control panel comprises a transistor driving module.
As shown in fig. 2, the circuit of the system includes a single chip, a CAN controller, a microwave circuit, a transistor driving module, a power chip, and a filter circuit, wherein one end of the power chip U1 is grounded, the other end of the power chip U1 is connected to one end of the filter circuit, the other end of the filter circuit is respectively connected to cathodes of a diode one D1 and a diode two D2, anodes of the diode one D1 and the diode two D2 are respectively connected to a battery connector and an ignition signal connector, and a diode three D3 is connected between the diode one D1 and the diode two D2; an ignition awakening interrupt port WakeUp of the single chip microcomputer U2 is respectively connected with one ends of a first resistor R1 and a second resistor R2, the other end of the second resistor R2 is grounded, the other end of the first resistor R1 is respectively connected with the cathode of a second diode D2 and one end of a third resistor R3, the other end of the third resistor R3 is respectively connected with an AD port IGN AD with analog-to-digital conversion and one end of a fourth resistor R4 of the single chip microcomputer U2, and the other end of the fourth resistor R4 is grounded; an analog port I AD1 of the singlechip U2 is connected with one end of a resistor five R5, the other end of the resistor five R5 is respectively connected with one ends of a resistor six R6, a resistor seven R7 and a capacitor one C1, the other end of the resistor six R6 is connected with 5V voltage, and the other ends of the resistor seven R7 and the capacitor one C1 are combined and grounded; the analog port two AD2 of the singlechip U2 is connected with one end of a resistor eight R8, the other end of the resistor eight R8 is respectively connected with one end of a resistor nine R9, a resistor ten R10 and a capacitor two C2, the other end of the resistor nine R9 is connected with 5V voltage, and the other ends of the resistor ten R10 and the capacitor two C2 are combined and grounded; an analog port three AD3 of the single chip microcomputer U2 is connected with one end of a resistor eleven R11, the other end of the resistor eleven R11 is connected with one end of a resistor twelve R12, a resistor thirteen R13 and a capacitor three C3 respectively, the other end of the resistor twelve R12 is connected with 5V voltage, and the other ends of the resistor thirteen R13 and the capacitor three C3 are combined and grounded; an IO port IO1 of the single chip microcomputer U2 is connected with one ends of a resistor fourteen R14 and a resistor fifteen R15 respectively, the other end of the resistor fourteen R14 is connected with 5V voltage, the other end of the resistor fifteen R15 is connected with the anode of a diode four D4, and the cathode of the diode four D4 is connected with a digital switch; the first CAN controller T1 is connected with one end of a first CAN transceiver P1 through RX and TX ports, and the other end of the first CAN transceiver P1 is connected with a LIN bus connector; the second CAN controller T2 is connected with one end of a second CAN transceiver P2 through RX and TX ports, and the other end of the second CAN transceiver P2 is connected with a CAN bus connector; the pulse width modulation port PWM1 of the single chip microcomputer U2 is connected with one end of a resistor twenty R20, the other end of the resistor twenty R20 is connected with a resistor twenty-one R21 and one end of a transistor driving module respectively, and the other end of the resistor twenty-one R21 is grounded; the other end of the transistor driving module controls the valve air pump through the memory alloy.
The model number of the power supply chip U1 is 4275; the type of the single chip microcomputer U2 is S32K 144; the model of the CAN transceiver P1 is TJA 1021; the model number of the second CAN transceiver P2 is TJA 1044.
As shown in fig. 4 and 5, the memory alloy control valve air pump comprises an air pump, an upper cover and a shell, wherein the top of the air pump 5 is connected with the shell 4, the top of an air flow channel positioned in the center of the shell 4 is provided with a membrane 3, and the upper cover 1 is connected above the shell 4; the upper cover 1 and the shell 4 are directly provided with a control panel 2; the control panel 2 comprises a circuit board, a contact pin, a buckle, a spring piece, a shape memory alloy wire and a sealing gasket, wherein the front side of the circuit board 2-1 is connected with the spring piece 2-3, one side of the spring piece 2-3 is connected with the sealing gasket 2-4, one end of the shape memory alloy wire 2-6 is connected on the spring piece 2-3 positioned below the sealing gasket 2-4, and the other end of the shape memory alloy wire 2-6 is connected with the circuit board 2-1 through the buckle 2-2; the circuit board 2-1 positioned at the rear side of the spring piece 2-3 is provided with a plurality of contact pins 2-5.
The upper cover 1 comprises an upper cover plate, a shell cavity, a membrane protective cover and a pin protection mechanism, wherein the shell cavity 8 is arranged on the upper cover plate 9, and the pin protection mechanism 7 is arranged on the rear side of the shell cavity 8; a membrane protective cover 6 is arranged on an upper cover plate 9 positioned between the housing cavity 8 and the pin protection mechanism 7; the spring piece 2-3 is of a Z-shaped structure, one end of the spring piece 2-3 is positioned above the front part of the circuit board 2-1, and a sealing gasket 2-4 is arranged above the other end of the spring piece 2-3; one end of the shape memory alloy wire 2-6 is connected with the bottom of the other end of the spring piece 2-3, and the other end of the shape memory alloy wire 2-6 is connected with the buckle 2-2; the shape memory alloy wires 2-6 are in a track-shaped structure, and two ends of the shape memory alloy wires 2-6 are in arc-shaped structures.
As shown in fig. 3, the control method specifically includes the following steps:
(1) initializing a flow;
(2) a control board in the memory alloy control valve air pump is sent to a CAN or LIN transceiver for signal initialization;
(3) judging whether an air conditioner controller in the automobile returns to initialization or not, if so, enabling a control panel in the memory alloy control valve air pump to enter a success state, and if not, ending;
(4) a control plate in the air pump of the memory alloy control valve enters a successful state;
(5) preparing a control plate in the memory alloy control valve air pump;
(6) judging whether the mode is a breeze mode 1, if so, controlling the valve air pump to perform a breeze valve system mode by the memory alloy, otherwise, judging whether the mode is a breeze mode n;
(7) the memory alloy control valve air pump carries out a breeze valve system mode;
(8) judging whether the time is overtime for 60 seconds, if so, judging whether the time is in a breeze mode n, and if not, entering and exiting the step (7);
(9) judging whether the mode is a breeze mode n, if so, controlling the valve air pump to perform a breeze valve system mode by the memory alloy, and otherwise, performing the step (6);
(10) the memory alloy control valve air pump carries out a breeze valve system mode;
(11) judging whether the time is overtime for 60 seconds, if so, judging whether the operation is stopped, otherwise, performing the step (10);
(12) judging whether the operation is stopped, if so, successfully exiting, otherwise, continuing the step (5);
(13) and (6) ending.
This patent is through the integration of the ventilation valve system who realizes vehicle air conditioner ventilation system and memory alloy control valve air pump, and opening and closing of control breeze pipeline valve door is fast with wind direction dynamic adjustment in the car, and the redistribution air flows. The ventilation adjusting function of the air conditioner is in butt joint with a breeze pipeline controlled by a valve of a memory alloy control valve air pump in a vehicle-mounted environment, and the wind direction and the wind speed are dynamically distributed in real time.
The system consists of a breeze pipeline system and a ventilation valve controller of a memory alloy control valve air pump. The breeze pipeline system is arranged in the vehicle and sends out breeze with variable wind speed through the external air outlet, as shown in figure 1. The air outlet of the breeze pipeline is uniformly distributed in the automobile in consideration of the arrangement of the interior trim in combination with the design requirement of automobile ventilation. The breeze pipeline is embedded in the automotive trim, and the heat preservation effect of the pipeline is ensured when the breeze pipeline is arranged.
The air inlet of the valve controller of the memory alloy control valve air pump is connected with the main air passage of the air-conditioning ventilation system, and the air quantity is distributed to the breeze pipeline through the valve of the memory alloy control valve air pump. The ventilation valve system adopts a valve formed by a memory alloy control valve and an air pump to be in butt joint with an air inlet of the breeze pipeline. The valve controller can be connected with a plurality of paths of breeze pipelines according to the actual effect.
The 7 valve controller of the memory alloy control valve air pump adopts a control chip based on automobile standards, is connected with an in-automobile bus through a CAN (controller area network) or LIN (local interconnect network) bus, and receives a control command of an air conditioning system or a control system. The control chip adopts a PWM mode to control and directly drive the MOSFET chip, and the on-off of the MOSFET is converted into the current for controlling the memory alloy control valve air pump so as to accurately control the valve switch position.
As shown in figure 2, the system adopts a vehicle-mounted microcontroller MCU chip, is connected with a vehicle bus through a vehicle-mounted bus, and integrates CAN bus and LIN bus physical interfaces on hardware in order to adapt to bus communication protocols of different manufacturers.
The integrated power management module adopts an LDO power system and manages power consumption through the MCU. The power management is divided into two conditions of deep sleep and light sleep, so that the static power consumption of the terminal is greatly reduced, and the terminal passes the low-power-consumption certification of the automobile completely.
The MOSFET drive circuit integrated on the module directly drives the valve of the memory alloy control valve air pump, the memory alloy wire is controlled and digitalized in a PWM (pulse-width modulation) mode, and the valve is controlled to be opened and closed in a very accurate mode, so that the effect of blowing soft breeze is achieved. Meanwhile, for the reliability of the system, the short circuit and open circuit detection functions are added to the circuit.
The main ventilation pipeline of the air conditioner is in butt joint with a valve of the memory alloy control valve air pump, and the system intelligently opens different air valves according to a comfort degree algorithm to enable the air quantity to be blown into the vehicle through the breeze pipeline. The comfort algorithm combines the characteristics of accurate control of a ventilation valve of a memory alloy control valve air pump on the basis of an original ventilation system in the vehicle, dynamically adjusts the opening and closing of the breeze valve in real time, and forms comfortable breeze experience in the vehicle.
The patent establishes a vehicle-mounted breeze system which adopts a memory alloy control valve air pump as a breeze control system. The ventilation of the vehicle air conditioner is further refined and controlled through the breeze pipeline, and the function of enhancing the comfortable experience of the vehicle-mounted vehicle air conditioner is achieved.
Claims (6)
1. Vehicle-mounted air conditioner breeze system based on memory alloy control valve air pump, including memory alloy control valve air pump, singlechip, CAN controller, transistor drive module, vehicle-mounted air conditioner air-out system, its characterized in that: a control panel in the memory alloy control valve air pump is connected with a single chip microcomputer through a line, and the single chip microcomputer is connected with a CAN controller through a line; the air outlet of the vehicle-mounted air conditioner air outlet system is connected with the air inlets of the memory alloy control valve air pumps, and the air outlets of the memory alloy control valve air pumps are respectively connected with the breeze pipelines; the CAN controller is respectively connected with the CAN bus and the LIN bus; the breeze pipelines are respectively embedded in the automotive trim; the control panel comprises a transistor driving module.
2. The vehicle-mounted air conditioner breeze system based on the memory alloy control valve air pump as claimed in claim 1, wherein: the circuit of the system comprises a single chip microcomputer, a CAN controller, a microwave circuit, a transistor driving module, a power chip and a filter circuit, wherein one end of the power chip (U1) is grounded, the other end of the power chip (U1) is connected with one end of the filter circuit, the other end of the filter circuit is respectively connected with the cathodes of a diode I (D1) and a diode II (D2), the anodes of the diode I (D1) and the diode II (D2) are respectively connected with a battery connector and an ignition signal connector, and a diode III (D3) is connected between the diode I (D1) and the diode II (D2); an ignition awakening interrupt port (WakeUp) of the single chip microcomputer (U2) is respectively connected with one end of a resistor I (R1) and one end of a resistor II (R2), the other end of the resistor II (R2) is grounded, the other end of the resistor I (R1) is respectively connected with the cathode of a diode II (D2) and one end of a resistor III (R3), the other end of the resistor III (R3) is respectively connected with one end of an AD port (IGN AD) with analog-to-digital conversion and one end of a resistor IV (R4) of the ignition acquisition of the single chip microcomputer (U2), and the other end of the resistor IV (R4) is grounded; an analog port I (AD 1) of the single chip microcomputer (U2) is connected with one end of a resistor five (R5), the other end of the resistor five (R5) is respectively connected with one ends of a resistor six (R6), a resistor seven (R7) and a capacitor I (C1), the other end of the resistor six (R6) is connected with 5V voltage, and the other ends of the resistor seven (R7) and the capacitor I (C1) are combined and grounded; the analog port II (AD 2) of the single chip microcomputer (U2) is connected with one end of a resistor eight (R8), the other end of the resistor eight (R8) is respectively connected with one end of a resistor nine (R9), a resistor ten (R10) and one end of a capacitor two (C2), the other end of the resistor nine (R9) is connected with 5V voltage, and the other ends of the resistor ten (R10) and the capacitor two (C2) are combined and grounded; an analog port III (AD 3) of the single chip microcomputer (U2) is connected with one end of a resistor eleven (R11), the other end of the resistor eleven (R11) is respectively connected with one end of a resistor twelve (R12), a resistor thirteen (R13) and one end of a capacitor III (C3), the other end of the resistor twelve (R12) is connected with 5V voltage, and the other ends of the resistor thirteen (R13) and the capacitor III (C3) are combined and grounded; an IO port (IO 1) of the single chip microcomputer (U2) is connected with one ends of a resistor fourteen (R14) and a resistor fifteen (R15) respectively, the other end of the resistor fourteen (R14) is connected with 5V voltage, the other end of the resistor fifteen (R15) is connected with the anode of a diode four (D4), and the cathode of the diode four (D4) is connected with the digital quantity switch; the CAN controller I (T1) is connected with one end of a CAN transceiver I (P1) through RX and TX ports, and the other end of the CAN transceiver I (P1) is connected with a LIN bus connector; the second CAN controller (T2) is connected with one end of a second CAN transceiver (P2) through RX and TX ports, and the other end of the second CAN transceiver (P2) is connected with a CAN bus connector; the pulse width modulation port (PWM 1) of the single chip microcomputer (U2) is connected with one end of a resistor twenty (R20), the other end of the resistor twenty (R20) is respectively connected with a resistor twenty-one (R21) and one end of the transistor driving module, and the other end of the resistor twenty-one (R21) is grounded; the other end of the transistor driving module controls the valve air pump through the memory alloy.
3. The vehicle-mounted air conditioner breeze system based on the memory alloy control valve air pump as claimed in claim 1, wherein: the model of the power supply chip (U1) is 4275; the type of the single chip microcomputer (U2) is S32K 144; the model of the CAN transceiver I (P1) is TJA 1021; the model number of the second CAN transceiver (P2) is TJA 1044.
4. The vehicle-mounted air conditioner breeze system based on the memory alloy control valve air pump as claimed in claim 1, wherein: the memory alloy control valve air pump comprises an air pump, an upper cover and a shell, wherein the top of the air pump (5) is connected with the shell (4), the top of an air flow channel positioned in the center of the shell (4) is provided with a diaphragm (3), and the upper cover (1) is connected above the shell (4); the upper cover (1) and the shell (4) are directly provided with a control panel (2); the control panel (2) comprises a circuit board, a contact pin, a buckle, a spring piece, a shape memory alloy wire and a sealing gasket, wherein the spring piece (2-3) is connected to the front side of the circuit board (2-1), one side of the spring piece (2-3) is connected with the sealing gasket (2-4), one end of the shape memory alloy wire (2-6) is connected to the spring piece (2-3) below the sealing gasket (2-4), and the other end of the shape memory alloy wire (2-6) is connected with the circuit board (2-1) through the buckle (2-2); the circuit board (2-1) positioned at the rear side of the spring piece (2-3) is provided with a plurality of contact pins (2-5).
5. The vehicle-mounted air conditioner breeze system based on the memory alloy control valve air pump is characterized in that: the upper cover (1) comprises an upper cover plate, a shell cavity, a diaphragm protective cover and a pin protection mechanism, wherein the shell cavity (8) is arranged on the upper cover plate (9), and the pin protection mechanism (7) is arranged on the rear side of the shell cavity (8); a membrane protective cover (6) is arranged on an upper cover plate (9) positioned between the housing cavity (8) and the pin protection mechanism (7); the spring piece (2-3) is of a Z-shaped structure, one end of the spring piece (2-3) is positioned above the front part of the circuit board (2-1), and a sealing gasket (2-4) is arranged above the other end of the spring piece (2-3); one end of the shape memory alloy wire (2-6) is connected with the bottom of the other end of the spring piece (2-3), and the other end of the shape memory alloy wire (2-6) is connected with the buckle (2-2); the shape memory alloy wires (2-6) are in a track-shaped structure, and two ends of the shape memory alloy wires (2-6) are in arc-shaped structures.
6. A control method of a vehicle-mounted air conditioner breeze system based on a memory alloy control valve air pump is characterized by comprising the following steps: the control method comprises the following specific processes:
(1) initializing a flow;
(2) a control board in the memory alloy control valve air pump is sent to a CAN or LIN transceiver for signal initialization;
(3) judging whether an air conditioner controller in the automobile returns to initialization or not, if so, enabling a control panel in the memory alloy control valve air pump to enter a success state, and if not, ending;
(4) a control plate in the air pump of the memory alloy control valve enters a successful state;
(5) preparing a control plate in the memory alloy control valve air pump;
(6) judging whether the mode is a breeze mode 1, if so, controlling the valve air pump to perform a breeze valve system mode by the memory alloy, otherwise, judging whether the mode is a breeze mode n;
(7) the memory alloy control valve air pump carries out a breeze valve system mode;
(8) judging whether the time is overtime for 60 seconds, if so, judging whether the time is in a breeze mode n, and if not, entering and exiting the step (7);
(9) judging whether the mode is a breeze mode n, if so, controlling the valve air pump to perform a breeze valve system mode by the memory alloy, and otherwise, performing the step (6);
(10) the memory alloy control valve air pump carries out a breeze valve system mode;
(11) judging whether the time is overtime for 60 seconds, if so, judging whether the operation is stopped, otherwise, performing the step (10);
(12) judging whether the operation is stopped, if so, successfully exiting, otherwise, continuing the step (5);
(13) and (6) ending.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911094124.XA CN110901336A (en) | 2019-11-11 | 2019-11-11 | Vehicle-mounted air conditioner breeze system based on memory alloy control valve air pump and control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911094124.XA CN110901336A (en) | 2019-11-11 | 2019-11-11 | Vehicle-mounted air conditioner breeze system based on memory alloy control valve air pump and control method |
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