CN109203914A - A kind of electric automobile air conditioner electric compressor machine control system and its control method - Google Patents
A kind of electric automobile air conditioner electric compressor machine control system and its control method Download PDFInfo
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- CN109203914A CN109203914A CN201811339143.XA CN201811339143A CN109203914A CN 109203914 A CN109203914 A CN 109203914A CN 201811339143 A CN201811339143 A CN 201811339143A CN 109203914 A CN109203914 A CN 109203914A
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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
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
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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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Abstract
The invention discloses a kind of motor compressor for vehicle air conditioner control systems, including microprocessor module, data acquisition module, amplifier module, comparator module, drive module, the microprocessor module respectively with the data acquisition module, amplifier module, comparator module, drive module connection, the data acquisition module is connect through the amplifier module with the comparator module, the control system further includes low-tension supply module and high-voltage power module, the low-tension supply module respectively with the microprocessor module, amplifier module, drive module connection, the high-voltage power module respectively with the data acquisition module, the drive module connection.The present invention can provide 380V, 12V, 15V, 3.3V, 5V voltage, and high voltage power supply and low-tension supply are realized and be physically isolated, and are not interfere with each other；And the present invention has under-voltage, over-voltage, overcurrent and the excessively high defencive function of temperature, it can be ensured that motor compressor for vehicle air conditioner safety, steady, efficient operation.
Description
Technical field
The present invention relates to automobile air conditioner control system, in particular to a kind of electric automobile air conditioner electric compressor machine control system
And its control method.
Background technique
Battery in electric car includes battery and power battery pack, and wherein battery can produce the low pressure of 12V, is moved
Power battery pack can produce the high pressure of 400V or so.For the air conditioning motor-driven compressor control system of electric car, wherein
Need to use a variety of high-low voltage power sources, traditional power supply scheme is due to being not carried out physical isolation, it is difficult to ensure high-low pressure
Power supply, which does not interfere with each other, causes motor compressor job insecurity, and in original part selection, using discrete component not only volume it is big and
And quantity is more, it is difficult to ensure that the functional reliability of compressor.
Chinese invention patent CN200310124504.6 discloses a kind of idle call motor compressor controller, solves nothing
The technical problem of the motor running control of position sensor, but without reference to high-low voltage power source in motor compressor controller
Supply problem.Chinese utility model patent CN201520727957.6 discloses a kind of passenger car electric air-conditioning circuit, by using
DC/DC transformer realizes the switching between 750V high pressure and 24V low pressure, but it can only realize a kind of switching of voltage, Wu Faying
Switching to multiple voltage.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of controls of motor compressor for vehicle air conditioner to be
System realizes that high voltage power supply and low-tension supply are physically isolated in the supply for realizing high-low voltage power source simultaneously.
To achieve the goals above, the technical solution adopted by the present invention are as follows:
Motor compressor for vehicle air conditioner control system, for controlling 380V three-phase direct-current brushless motor, the control system
Including microprocessor module, amplifier module, data acquisition module, comparator module, drive module, the microprocessor module point
It is not connect with the amplifier module, data acquisition module, comparator module, drive module, described in the data acquisition module warp
Amplifier module is connect with the comparator module, and the control system further includes low-tension supply module and high-voltage power module, institute
It states low-tension supply module to connect with the microprocessor module, amplifier module, drive module respectively, the high-voltage power module point
It is not connect with the data acquisition module, the drive module, in which:
The low-tension supply module is for providing stable 3.3V, 5V, 12V, 15V power supply for system；
The data acquisition module is used to acquire the electricity of the biphase current data of motor compressor, the high-voltage power module
Data are pressed, and biphase current data are sent to the amplifier module, voltage data is sent to the microprocessor module；
The amplifier module is used to biphase current data amplifying processing, and sends it to the microprocessor mould
Block, while wherein a phase current data will be sent to the comparator module；
The comparator module sends comparison result for being compared received phase current data with preset value
To the microprocessor module；
The microprocessor module for biphase current data based on the received calculate electric compressor machine rotor position and
Torque generates control signal according to the data that the position of rotor and torque and the comparator module are sent and is sent to the drive
Dynamic model block；
The drive module is used to receive the control signal that the microprocessor module module is sent, and is believed according to this control
Number control direct current drive compressor operating；
The high-voltage power module is for providing stable 380V driving voltage for the drive module.
The data acquisition module is also used to be sent to after the voltage data of acquisition is divided, is filtered described micro-
Processor module.
The microprocessor module is also used to for received voltage data being compared with preset value, and according to comparison result
It generates control signal and is sent to the drive module.
The control system further includes CAN communication module, the CAN communication module respectively with the low-tension supply module,
Microprocessor module, air-conditioner controller connection, the microprocessor module by the CAN communication module and air-conditioner controller into
The transmission of row data.
The CAN communication module uses isolated form CAN communication chip.
The drive module uses automobile-used three-phase IGBT intelligent power module, and the three-phase IGBT intelligent power module includes
PWM complementary signal input terminal, temperature output port, failure output port and short-circuit protection port, the temperature output port is through π
Type filter circuit is connect with the microprocessor module AD signal acquisition port, the failure output port and the microprocessor
The I/O interface of module connects, PWM complementary signal input terminal and the microprocessor module of the IGBT intelligent power module
The output end of the connection of PWM complementary signal output end, the sampled resistance in short-circuit protection port and the data acquisition module connects
It connects.
The resistance of the π type filter circuit is 10K ohm, and capacitor's capacity is 100nF.
The low-tension supply module includes power-switching circuit, EMI filter circuit, transformer output circuit and pulse signal
Output circuit, the power-switching circuit include 5V power-switching circuit and 3.3V power-switching circuit, the 5V power supply conversion
The input terminal of circuit is connect with the output end of the EMI filter circuit, the input terminal of the 3.3V power-switching circuit with it is described
The output end of transformer output circuit connects, and the 5V power-switching circuit provides power supply, the 3.3V electricity for CAN communication module
Power-switching circuit is microprocessor module, CAN communication module, amplifier module, drive module provide power supply.
The EMI filter circuit is provided for being filtered to the external 12V low-tension supply of introducing for control system
Stable 12V power supply.
The input terminal of the transformer output circuit is connect with the output end of the EMI filter circuit, and the transformer is defeated
The output end of circuit is connect with the drive module out, and stable 15V low-tension supply, the transformation are provided for the drive module
Device output circuit uses isolated form transformer, for being physically separated to its input terminal and output end.
The output of pulse signal circuit includes loop Current-type PWM Controller, three terminal regulator and optocoupler, the current mode
The primary voltage that PWM controller is used to control the transformer output circuit makees cyclically-varying, the three terminal regulator and light
The 15V feedback network of coupling composition is input to the inside of the loop Current-type PWM Controller, to the secondary of the transformer output circuit
Voltage is finely adjusted, and stablizes it in 15V.
The control method of motor compressor for vehicle air conditioner control system, comprising the following steps:
A. each circuit in the control system is initialized；
B. the biphase current data of motor compressor and the voltage data of high-voltage power module are acquired；
C. the biphase current data of collected motor compressor are sent to the microprocessor mould after enhanced processing
Block, while the phase current after enhanced processing is sent to comparator module and is compared with setting value；
D. the microprocessor module and preset value are sent to after collected voltage data being divided, is filtered
It is compared；
E. drive module output temperature AD value to microprocessor module, the microprocessor module carries out it with preset value
Compare；
F. the microprocessor module calculates the position of electric compressor machine rotor according to the biphase current data received；
G. the signal that the microprocessor module is sent according to the comparator that receives, judge motor compressor whether mistake
Stream, and the drive module is sent a control signal to according to comparison result；
H. whether the microprocessor module judges motor compressor according to voltage data, the comparison result of temperature AD value
Over-voltage, under-voltage, excess temperature, and the drive module is sent a control signal to according to comparison result；
I. microprocessor module is according to whether acquisition square wave disablement signal, sends a control signal to the drive module；
J. the drive module controls signal based on the received and controls the 380V three-phase direct-current brushless motor work.
The present invention has the advantages that 1, the present invention by high and low pressure power module for the component in system provide 380V,
12V, 15V, 3.3V, 5V voltage, and high voltage power supply and low-tension supply are realized and are physically isolated, and are not interfere with each other；2, drive of the invention
Dynamic model block uses automobile-used three-phase IGBT intelligent power module, and built-in three-phase bridge driving chip greatly simplifies circuit；3, present invention electricity
There is under-voltage, over-voltage, overcurrent and the excessively high defencive function of temperature can ensure that motor compressor for vehicle air conditioner safety, steady, height on road
Effect operation；4, by CAN communication module, the data interaction of external air-conditioner controller, host computer and microprocessor module is realized.
Detailed description of the invention
Below to each width attached drawing of description of the invention expression content and figure in label be briefly described:
Fig. 1 is the structural schematic diagram of electric compressor machine control system of the present invention；
Fig. 2 is the EMI filter circuit figure of electric compressor machine control system low-tension supply module of the present invention；
Fig. 3 is the output of pulse signal circuit diagram of electric compressor machine control system low-tension supply module of the present invention；
Fig. 4 is the transformer output circuit figure of electric compressor machine control system low-tension supply module of the present invention；
Fig. 5 is the 5V power-switching circuit figure of electric compressor machine control system low-tension supply module of the present invention；
Fig. 6 is the 3.3V power-switching circuit figure of electric compressor machine control system low-tension supply module of the present invention；
Fig. 7 is electric compressor machine control system microprocessor module circuit diagram of the present invention；
Fig. 8 is electric compressor machine control system high-voltage power module circuit diagram of the present invention；
Fig. 9 is electric compressor machine control system drive module circuit diagram of the present invention；
Figure 10 is electric compressor machine control system CAN communication module circuit diagram of the present invention；
Figure 11 is electric compressor machine control system comparator module circuit diagram of the present invention；
Figure 12,13 are electric compressor machine control system amplifier module circuit diagrams of the present invention；
Figure 14 is electric compressor machine control system data acquisition module circuit diagram of the present invention.
Label in above-mentioned figure is equal are as follows:
1, microprocessor module；2, data acquisition module；3, amplifier module；4, comparator module；5, drive module；6, low
Piezoelectricity source module；7, high-voltage power module；8, CAN communication module.
Specific embodiment
A specific embodiment of the invention is made further detailed below against attached drawing by the description to optimum embodiment
Thin explanation.
As shown in Figure 1, being the structural schematic diagram of motor compressor for vehicle air conditioner control system of the present invention, the present invention is for controlling
380V three-phase direct-current brushless motor processed.In the present embodiment, which includes microprocessor module 1, data acquisition module
2, amplifier module 3, comparator module 4, drive module 5, the microprocessor module 1 respectively with the data acquisition module 2, fortune
Amplification module 3, comparator module 4, drive module 5 connect, and the data acquisition module 2 is through the amplifier module 3 compared with described
The connection of 4 module of device, the control system further includes low-tension supply module 6 and high-voltage power module 7, the low-tension supply module
(6) connect respectively with the microprocessor module 1, amplifier module 3, drive module 5, the high-voltage power module 7 respectively with institute
State data acquisition module 2, the drive module 5 connects.
Wherein, the data acquisition module 2 is used to acquire the biphase current data of motor compressor and sends it to fortune
Amplification module 3, amplifier module 3 is sent to the microprocessor module 1 after being amplified, while wherein will be sent to ratio by a phase current
Compared with device module 4, microprocessor module 1 calculates position and the torque of engine rotor with FOC algorithm according to biphase current data,
Wherein FOC algorithm belongs to the prior art.The current data received is compared by comparator module 4 with setting value, and will be compared
Relatively result is sent to microprocessor module 1, microprocessor module 1 according to comparison result judge motor compressor whether overcurrent.Number
It is also used to acquire according to acquisition module 2 and is input to the voltage data of the drive module 5, and after being divided, being filtered
Be sent to microprocessor module 1, microprocessor module 1 is compared after being amplified to original value with setting value, and according to than
Relatively result judge motor compressor whether over-voltage, under-voltage.
As shown in figures 2-6, low-tension supply module includes power input stand J2, common mode inductance L2, two poles of transient voltage inhibition
Pipe D4, diode D5, D6, D7, D8, D9, D10, loop Current-type PWM Controller U2, triode D2, optocoupler U9, three terminal regulator D3,
Transformer T1, inductance L3, L4, L5, power rub this pipe Q1, low pressure difference linear voltage regulator U3, voltage stabilizing chip U4, nonpolar capacitor
C14, C15, C16, C17, C18, C19, C20, C21, C7, C8, C9, C10, C11, C12, C13, C22, C23, C24, C25, C26,
C31, C32, C37, C38, C39, C40, C41, polar capacitor C27, C28, C29, C30, C33, C34, C35, C36, C42, C43,
C44, C45, resistance R32, R21, R22, R23, R24, R25, R26, R27, R28, R29, R30, R31, R33, R34, R35, R36,
R37, R38, R39, R40, R41, R42, R43, R44, R45, R46, R47, R104, R105, R106, test point TP1, TP2, TP3,
TP4, TP5, TP6, TP7, TP8, TP9.
Fig. 2 is the EMI filter circuit of low-tension supply module, and the EMI filter circuit is used for the external 12V low pressure to introducing
Power supply is filtered, and stable 12V power supply is provided for control system.Specific in circuit diagram, power input stand J2's is low
Voltage source input port (port 1) and capacitor C15, C16, C17, one end (port 1) of common mode inductance L2 and test point TP1 connect
The other end of 12V high level, capacitor C15 is connected with one end of capacitor C14；The low pressure of power input stand J2 ground port (port 2)
With capacitor C14, the other end of C16, C17 and one end (port 2) of common mode inductance and test point TP2 with connecing low pressure (port
LGND-1)；The port CANH (port 3) of power input stand J2 is CAN high RST port, and the port CANL (port 4) is the low letter of CAN
Number port；One end (port 4) of common mode inductance L2 and capacitor C18, one end of C19, the anode of capacitor C27, transient voltage inhibit
One end of diode D4 and the anode of diode D5 are connected, the cathode of diode D5, the anode of capacitor C28, capacitor C20, electricity
The one end for holding C21 and resistance R32 is connected with the transformer T1 primary source input port (port VCC0) in figure four, common mode electricity
Feel one end (port 3) and the capacitor C18, C19, C20 of L2, C21, polar capacitor C27, C28, transient voltage suppressor D4
The other end is with connecing primary source (port LGND)；The other end of resistance R32 and the electricity of the loop Current-type PWM Controller U2 in figure three
Source input port (port VCC) is connected.
Fig. 3 is the output of pulse signal circuit of low-tension supply module, the 15V high level that one end map interlinking 4 of resistance R29 exports
(port+15V), the reference of the other end and resistance R28, one end of capacitor C13, test point TP3 and three terminal regulator D3 of R29
Pole (port R) is connected, and the other end of resistance R28 is connected with the anode (port A) of three terminal regulator D3 is followed by secondary ground (port
GND), the other end of capacitor C13 is connected with one end of resistance R27, the other end of resistance R27 and one end, the optocoupler U9 of resistance R25
The cathode (port K) of one end (port 3) and three terminal regulator D3 are connected, one end of the other end of resistance R25 and resistance R26 with
And one end (port 1) of optocoupler U9 is connected, 4 output voltage (port 15VS) of other end map interlinking of resistance R26；One end of optocoupler U9
The primary ground (port LGND) of 4 transformer T1 of (port 4) map interlinking；One end (port 6) of optocoupler U9 and resistance R24, one end of R21
And the compensating end (port 1) of loop Current-type PWM Controller U2 is connected, the other end of resistance R24 is connected with one end of capacitor C11,
The other end of capacitor C11 and the pressure feedback port (port 2) of loop Current-type PWM Controller U2 connect primaryly (port LGND), resistance
The R21 other end, one end of R22 and one end of capacitor C8, loop Current-type PWM Controller U2 reference voltage output terminal (port 8) with
And the collector (port 3) of triode D2 is connected, the primary ground (port LGND) of another termination of capacitor C8, current type PWM control
The port 3 of device U2 is as current sampling input terminal (port ISEN) and capacitor C12, and C10, one end of resistance R23 are connected, capacitor
The other end and test point TP4 of C12 with connecing primary (port LGND), (hold by the other end of resistance R23 and the emitter of triode D2
2) mouth is connected, the other end and capacitor C9, the other end of resistance R22, the oscillator of loop Current-type PWM Controller U2 of capacitor C10 is defeated
The ground level (port 1) for entering end (port 4) and triode D2 is connected, the primary ground (port LGND) of another termination of capacitor C9, electricity
The power input port (port 7) of flow pattern PWM controller U2 and termination power end (port VCC) of capacitor C7, capacitor C7
The primary ground (port LGND) of another termination, one end of loop Current-type PWM Controller U2 pulse output end (port 6) connecting resistance R19,
The other end of resistance R19 be connected with one end of resistance R20 after as Fig. 4 power rub this pipe Q1 gate pole (port 1) input terminal
(port G), the primary ground (port LGND) of another termination of resistance R20.Loop Current-type PWM Controller exports the pwm signal of 70KHZ,
It is periodically switched on and off power to rub this pipe, makes transformer primary voltage 12V cyclically-varying, secondary voltage exports 15V, three ends
The 15V feedback network of voltage-stablizer and optocoupler composition is input to the inside of the loop Current-type PWM Controller, to the secondary voltage into
Row fine tuning, makes output voltage stabilization in 15V.NCV3843BV can be used in loop Current-type PWM Controller U2.
Fig. 4 is the transformer output circuit of low-tension supply module, the input terminal and the EMI of the transformer output circuit
The output end of filter circuit connects, and the output end of the transformer output circuit is connect with the drive module 5, is the driving
Module 5 provides stable 15V low-tension supply.Specific in circuit diagram, capacitor C22, one end of resistance R38, test point TP5 and become
One end (port 1) of depressor T1 connects transformer input voltage end (port VCC0), the other end of capacitor C22 and the one of resistance R37
End is connected, and the other end of resistance R37 is connected with the cathode of the other end of resistance R38 and diode D6, the anode of diode D6
The drain electrode (port 2) of this pipe Q1 is rubbed with power and one end (port 2) of transformer T1 is connected；One end (port of transformer T1
3) it is connected with one end of the anode of diode D7, capacitor C23, the other end of capacitor C23 is connected with one end of resistance R39, resistance
The other end of R39 and cathode, test point TP6, the anode of polar capacitor C29, one end of capacitor C24, the inductance L3 of diode D7
One end be connected and be used as 15V power output end (port 15VS), another termination secondary ground of the cathode of capacitor C29 and capacitor C24
(port GND), conduct after the other end of L3 is connected with the anode of one end of resistance R40, one end of capacitor C25, polar capacitor C30
15V power output end (port+15V), the other end and the other end of capacitor C25 of resistance R40, the cathode of polar capacitor C30, change
One end (port 4) of depressor T1 meets secondary ground (port GND)；Power rub this pipe Q1 source electrode (port 3) and resistance R33, R34,
One end of R35, R36, R30 are connected, and the other end of resistance R33, R34, R35, R36, R30 are with connecing primary (port LGND), electric
Hinder the current sampling input terminal (port ISEN) of the other end of R30 and one end of resistance R31 and Fig. 3 loop Current-type PWM Controller U2
It is connected, another termination port VCC0 of resistance R31；The primary ground (port LGND) of a termination of capacitor C26, capacitor C26's is another
It terminates secondary ground (port GND), the one of resistance R104 terminates digitally (port DGND), another termination secondary ground of resistance R104
(port GND), termination secondary ground (port GND) of resistance R105, another termination simulation ground (port AGND) of resistance R105,
The one of resistance R106 terminates digitally (port DGND), another termination secondary ground (port GND) of resistance R106.The transformer is defeated
The transformer in circuit is isolated form transformer out, for being physically separated to its input terminal and output end, prevents height
Pressure network network influences each other.
Fig. 5 be low-tension supply module 6 in 5V power-switching circuit, the input terminal of the 5V power-switching circuit with it is described
The output end of EMI filter circuit connects, and the 5V power-switching circuit is that CAN communication module 8 provides power supply.In physical circuit
In, the anode of diode D8 meets 12V high level, the cathode of diode D8 and one end, the polar capacitor C33 of capacitor C31, C34's
Anode, the voltage input end (port 8) of low pressure difference linear voltage regulator U3 are connected, one end of resistance R41 and low pressure difference linearity pressure stabilizing
The enabled control signal (port 3) of device U3 is connected, one end of resistance R42 and the wrong output end of low pressure difference linear voltage regulator U3
(port 5) is connected, the other end of resistance R42 and the output end (port 1) of low pressure difference linear voltage regulator U3, test side (port 2),
The anode of polar capacitor C35, C36, one end of capacitor C32 are connected and are used as 5V power output end (port 5VCAN), voltage stabilizing chip U3
Feedback end (port 7) be connected with internal voltage divider output end (port 6), capacitor C31, C32, polar capacitor C33, C34, C35,
The grounding ports (port 4) of C36, the other end of resistance R41 and voltage stabilizing chip U3 with connecing low pressure port (port LGND-1).
MIC2951-03YM can be used in the low pressure difference linear voltage regulator U3.
Fig. 6 is 3.3V power-switching circuit, the input terminal of the 3.3V power-switching circuit and institute in low-tension supply module 6
The output end connection of transformer output circuit is stated, the 3.3V power-switching circuit is microprocessor 1, CAN communication module 8, fortune
Amplification module 3, drive module 5 provide power supply.In physical circuit, anode, Fig. 4 transformer electricity of capacitor C37 and polar capacitor C42
One end of road output end (port+15V) and inductance L5 are connected, the other end of L5 and the anode of polar capacitor C43 and pressure stabilizing
The power input (port 5) of chip U4, enable end (port 4) are connected, the other end, the polar capacitor C42 of capacitor C37, C43's
Cathode and the grounding ports (port 2) of voltage stabilizing chip U4, test point TP7 meet digitally port (port DGND)；Pressure stabilizing core
The internal drive end (port 1) of piece U4 is connected with the cathode of one end of capacitor C38 and diode D10, the other end of capacitor C38
It is connected with the output switching section of one end of inductance L4, the anode of diode D9 and voltage stabilizing chip U4 point (port 6), diode D9
Cathode meet digitally port (port DGND), the other end, the resistance R44, R46, R47 of the anode and inductance L4 of diode D10
One end, the anode of polar capacitor C44, C45, capacitor C39, C40 one end be connected and be used as 3.3V power output end (port
3.3V), the other end and resistance R43 of resistance R44, R46, one end of R45 and the output voltage feedback end (end of voltage stabilizing chip U4
3) mouth is connected, the other end of resistance R43, R45 and polar capacitor C44, the cathode of C45, test point TP8 and capacitor C39, C40
The other end connect digitally (port DGND), the other end of resistance R47 be connected with one end of capacitor C41 as 3.3V power supply it is defeated
Outlet (port A3.3V), the other end and test point TP9 of capacitor C41 is with connecing simulation (port AGND).The voltage stabilizing chip U4 can
Using MCP16301.
As shown in fig. 7, microprocessor module includes resistance R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12,
R13, R14, R15, R16, R17, R18, capacitor C1, C2, C3, C4, C5, C6, the burned seat J1 of program, light emitting diode D1, crystal oscillator
Y1, microprocessor chip U1；One end of the first port (port 1) of the burned seat J1 of program and resistance R1, capacitor C2 one end with
And the reseting port (port 18) of control chip U1 is connected, the other end of resistance R1 and the second port (end of the burned seat J1 of program
Mouth 2) and capacitor C6 one termination low-tension supply output end 3.3V high level (port 3.3V), capacitor C2, capacitor C6's is another
The third port (port 3) of end and the burned seat J1 of program meet digitally (port DGND)；The program of the burned seat J1 of program is burned
Port (port 4, port 5) is connected with the burned port of the program of microprocessor chip U1 (port 41, port 42) respectively；Resistance
One end of R2, R3, R4, R5, R6, R7, R8, R9, R10, R13, R14, R15, R16, R17, R18 respectively with microprocessor chip U1
I/O port (port 2,3,12,13,24,25,26,27,32,35,36,37,38,43,44) be correspondingly connected with, resistance R2, R3,
The other end of R4, R5, R6, R7, R8, R9, R10, R13, R14, R15, R16, R17, R18 meet digitally (DGND)；Capacitor C1
One end be connected with the port VCAP (port 7) of microprocessor chip U1, the other end of capacitor C1 and microprocessor chip U1's
Common ground end (port 6,29,39) meets digitally (port DGND)；The analog power input port of microprocessor chip U1
(port 17) is connected with low-tension supply modular power source port (port A3.3V), the simulation of microprocessor chip U1 ground port (port
16) with connecing simulation (port AGND)；The operating voltage input port (port 28, port 40) and capacitor C3 of microprocessor chip U1
Termination low-tension supply module 3.3V high level (port 3.3V), the ground connection of the other end of capacitor C3 and microprocessor chip U1
End (port 29, port 39) meets digitally (port DGND)；The I/O port (port 34) of microprocessor chip U1 is with resistance R12's
One end is connected, and the other end of resistance R12 is connected with the anode of light emitting diode D2, and the cathode for the diode D2 that gives out light connects digitally
(port DGND)；One end of crystal oscillator Y1 and one end of resistance R11 and one end of capacitor C4 with microprocessor chip U1 the
The connection of one external clock input port (port 30), the one of the other end of crystal oscillator Y1 and the other end of resistance R11 and capacitor C5
End is connect with the second external clock input port (port 31) of microprocessor chip U1, the other end of capacitor C4 and capacitor C5
Meet digitally (port DGND).Microprocessor chip includes CAN register, PWM register, CAN register and CAN communication module
7 connections, PWM register exports 6 road PWM complementary signals, for controlling the output of the drive module 5, the microprocessor core
Piece further includes 5 road AD signal acquisition ports.Preferably, dsPIC33EP256MC504 can be used in microprocessor chip U1.
As shown in figure 8, high-voltage power module includes automobile power cell power input stand J4, common mode inductance L1, polarity electricity
Hold C98, C99, capacitor C95, C96, C97, resistance R107；One end (port 2) of common mode inductance L1 and automobile power cell power supply
The electrode input end (port 1) for inputting seat J4 is connected, one end (port 1) of common mode inductance L1 and automobile power cell power input
The negative input (port 2) of seat J4 is connected, one end (port 3) of common mode inductance L1 and polar capacitor C98, the anode of C99 with
And one end of capacitor C95, C96, C97 are connected as electrical source of power output end (port DC+), one end (port of common mode inductance L1
4) with polar capacitor C98, the other end of the cathode of C99 and capacitor C95, C96, C97 is connected as electrical source of power (port
PGND), termination secondary ground (port GND) of resistance R107, another termination electrical source of power of resistance R107 ground (port PGND).
As shown in figure 9, drive module includes resistance R81, R82, R83, R84, R85, R86, R87, R88, R89, R90,
R91, R92, R93, capacitor C71, C72, C73, C74, C75, C76, C77, C78, C79, C80, C81, C82, C83, C84, C85,
C86, C87, C88, C89, C90, C91, polar capacitor C92, C93, C94, diode D11, D12, D14, zener diode D13,
Automobile-used three-phase IGBT intelligent power module U8, compressor attachment base J3；Three-phase IGBT intelligent power module includes PWM complementary signal
Input terminal, temperature output port, failure output port and short-circuit protection port, PWM complementary signal input terminal and the micro process
The PWM complementary signal output end of device module connects, for receiving the PWM complementary signal of the microprocessor module, described in control
Bridge arm and lower bridge arm alternately turn on and off on the inside of IGBT intelligent power module, for driving motor compressor.The temperature
Degree output port is connect through π type filter circuit with the AD signal acquisition port of the microprocessor 1, the microprocessor module 2
It is compared after receiving the temperature AD value with default temperature value in the storage device, judges the IGBT intelligence function
Whether the operating temperature of rate module reaches overheat protector off value.The I/O of the failure output port and the microprocessor 1 connects
Mouthful connection actively exports square wave disablement signal to the microprocessor module 2 in the power module miswork,
When microprocessor module 2 detects the square wave disablement signal, controls its PWM complementary signal output end and stop output control letter
Number, until trouble shooting.The sampled resistance in short-circuit protection port is connect with the output end of the data acquisition module 2, short
When the input voltage of road protection port reaches 0.5V, IGBT intelligent power module starts automatic protection functions, while exporting square wave
Disablement signal is to the microprocessor module 2.
Preferably, the resistance of the π type filter circuit is 10K ohm, and capacitor's capacity is 100nF.
One end of resistance R81, R82, R83, R84, R85, R86 are exported with the PWM complementary signal of microprocessor module respectively
End (port 15,14,11,10,9,8) is correspondingly connected with, one end and automobile-used three-phase of the other end of resistance R81 and capacitor C76
The W phase lower bridge arm control signal (port 5) of IGBT intelligent power module U8 is connected, the other end and capacitor C73 of resistance R82
One end be connected with bridge arm control signal (port 17) in the W phase of automobile-used three-phase IGBT intelligent power module U8, R83's is another
One end and V phase lower bridge arm control signal (port 4) phase of automobile-used three-phase IGBT intelligent power module U8 of end and capacitor C75
Even, one end of the other end of R84 and capacitor C72 and bridge arm control in the V phase of automobile-used three-phase IGBT intelligent power module U8 are defeated
Enter end (port 13) to be connected, the U of the other end of R85 and one end of capacitor C74 and automobile-used three-phase IGBT intelligent power module U8
Phase lower bridge arm control signal (port 3) is connected, one end and automobile-used three-phase IGBT intelligence of the other end of R86 and capacitor C71
Bridge arm control signal (port 9) is connected in the U phase of power module U8, and capacitor C71's, C72, C73, C74, C75, C76 is another
End meets secondary ground (port GND)；The cathode and capacitor C81, C82, C83, C84, C85, C86 of zener diode D13, C90's
One end, automobile-used three-phase IGBT intelligent power module U8 lower bridge arm controller power source input terminal (port 1), U phase control device power supply
Input terminal (port 10), V phase control device power input (port 14), W phase control device power input (port 18) connect low pressure
Power module 15V power output end (port+15V), anode and capacitor C81, C82, C83, C84, the C85 of zener diode D13,
The low-voltage ground end (port 2) of the other end of C86, C90 and automobile-used three-phase IGBT intelligent power module U8 connect secondary ground (end
Mouth GND)；One end of capacitor C87 and one end of resistance R89 are picked up to be inputted with the overcurrent protection of three-phase IGBT intelligent power module U8
It holds (port 8), the U phase lower bridge arm output end (port of the other end of resistance R89 and automobile-used three-phase IGBT intelligent power module U8
21) it is connected, another termination electrical source of power of capacitor C87 ground (port PGND)；The cathode of diode D12 is with polar capacitor C92's
One end of anode and capacitor C89 connect the U phase boostrap circuit input terminal (port of automobile-used three-phase IGBT intelligent power module U8
11), one end of the positive connecting resistance R88 of diode D12, another termination low-tension supply module 15V power output end of resistance R88
(port+15V)；The other end of capacitor C89 and the cathode of polar capacitor connect the U of automobile-used three-phase IGBT intelligent power module U8
One end of phase boostrap circuit input terminal (port 12), the cathode of diode D11 and the anode of polar capacitor C93 and capacitor C88
The V phase boostrap circuit input terminal (port 15) of automobile-used three-phase IGBT intelligent power module U8 is connected, the anode of diode D11 connects electricity
One end of R87 is hindered, another termination low-tension supply module 15V power output end (port+15V) of resistance R87, capacitor C88's is another
The cathode of one end and polar capacitor C93 connect the V phase boostrap circuit input terminal (end of automobile-used three-phase IGBT intelligent power module U8
16), the cathode of diode D14 connect automobile-used three-phase IGBT intelligence with one end of the anode of polar capacitor C94 and capacitor C91 to mouth
The W phase boostrap circuit input terminal (port 19) of power module U8, one end of the positive connecting resistance R90 of diode D14, resistance R90
Another termination low-tension supply module 15V power output end (port+15V), the other end and polar capacitor C94 of capacitor C91
Cathode connect the W phase boostrap circuit input terminal (port 20) of automobile-used three-phase IGBT intelligent power module U8, one end of resistance R91
The temperature output end (port 7) of automobile-used three-phase IGBT intelligent power module U8 is connect with one end of capacitor C78, resistance R91's is another
One end is connected with the analogue data input terminal (port 23) of one end of capacitor C77 and microprocessor module, and capacitor C78's is another
It terminates secondary ground (port GND), another termination simulation ground (port AGND) of capacitor C77, one end of resistance R92 and resistance R93
One end and one end of capacitor C80 connect the fault-signal output end (port 6) of automobile-used three-phase IGBT intelligent power module U8,
The other end of resistance R92 is connected with the I/O port (port 1) of one end of capacitor C79 and microprocessor module, and capacitor C80 is another
One termination secondary ground (port GND), another termination of capacitor C79 digitally (port DGND), another termination low pressure of resistance R93
Power module 3.3V high level (port 3.3V), bridge arm output end (port 1) and automobile-used three-phase in the U phase of compressor attachment base J3
Bridge arm output end (port 24) is connected in the U phase of IGBT intelligent power module U8, and bridge arm exports in the V phase of compressor attachment base J3
End (port 2) is connected with bridge arm output end (port 25) in the V phase of automobile-used three-phase IGBT intelligent power module U8, compressor connection
Bridge arm output end (port 3) and (end of bridge arm output end in the W phase of automobile-used three-phase IGBT intelligent power module U8 in the W phase of seat J3
26) mouth is connected, high voltage power supply input terminal (port 27) and the high-voltage power module of automobile-used three-phase IGBT intelligent power module U8
Electrical source of power output end (port DC+) is connected.FAM65V05DF1 can be used in the automobile-used three-phase IGBT intelligent power module U8.
As shown in Figure 10, CAN communication module includes resistance R48, R49, R50, R51, capacitor C46, C47, C48, C49,
C50, C51, C52, C53, C54, isolated CAN bus transceiving chip U5；A termination microprocessor module micro process of resistance R49
The data sending terminal mouth (port 5) of device chip U1, the other end of resistance R49 and one end of capacitor C47 and isolated CAN bus
The data receiver port (port 2) of transceiving chip U5 is connected, a termination microprocessor module microprocessor chip U1 of resistance R48
Data receiver port (port 4), the other end of resistance R48 and one end of capacitor C46 and isolated CAN bus transceiving chip
The receipt sending port (port 3) of U5 is connected, and the other end of capacitor C46, C47, one end of capacitor C48 and isolated CAN are total
The ground terminal (port 4) of line transceiving chip connects digitally (port DGND), the other end of capacitor C48 and isolated CAN bus
Transceiving chip 3.3V power input (port 1) meets low-tension supply output end 3.3V high level (port 3.3V), capacitor C49, C50
One end and isolated CAN bus transceiving chip 5.5V power input (port 8) connect low-tension supply output end 5V high level
The CAN high RST of (port 5VCAN), one end of resistance R51 and one end of capacitor C52 and isolated CAN bus transceiving chip
(port 7) is held to be connected, one end of resistance R50 letter low with the CAN of one end of capacitor C51 and isolated CAN bus transceiving chip
Number end (port 6) is connected, the CAN of a termination low-tension supply modular power source input seat J2 of the other end of resistance R51 and capacitor C54
High RST end (port 3), the CAN of a termination low-tension supply modular power source input seat J2 of the other end and capacitor C53 of resistance R50
Low signal end (port 4), the other end of capacitor C49, C50, C51, C52, C53, C54 and isolated CAN bus transceiving chip
The ground terminal (port 5) of U5 with connecing low pressure port (port LGND-1).The isolated CAN bus transceiving chip U5 can be used
ISO1050。
As shown in figure 11, comparator module includes resistance R75, R76, R77, R78, R79, R80, capacitor C65, C66, C67,
C68, comparator U7；One end of resistance R77 is connected with low-tension supply modular power source output end (port A3.3V), and resistance R77's is another
The positive input (port 3) of one end and resistance R76, R78, one end of capacitor C65 and comparator U7 are connected, resistance R78's
The other end is connected with one end of the output end (port 1) of comparator U7 and resistance R79, one end of resistance R75 and microprocessor
The input end of analog signal (port 22) of module microprocessor chip U1 is connected, the other end and capacitor C66 and ratio of resistance R75
Reverse input end (port 4) compared with device U7 is connected, the other end and resistance R80, capacitor C68 and micro treatment module of resistance R79
The I/O port (port 33) of microprocessor chip U1 is connected, the other end of resistance R80, one end of capacitor C67 and comparator U7
Power input (port 5) be connected with low-tension supply modular power source output end (port A3.3V), the other end, the electricity of resistance R76
Hold C65, C66, C67, the other end of C68 and the ground terminal of comparator U7 are with connecing simulation (port AGND).The comparator
U7 can use MCP6561.
As shown in Figure 12,13, amplifier module includes resistance R52, R53, R54, R55, R56, R57, R58, R59, R60,
R61, R62, R63, R64, R65, R66, R67, R68, R69, R70, R71, R72, R73, R74, capacitor C55, C56, C57, C58,
C59, C60, C61, C62, C63, C64, test point TP10, TP11, TP12, TP13, operational amplifier U6 four component U6A,
U6B, U6C, U6D；The output end (port 14) of a termination operational amplifier U6 component U6D of resistance R65, resistance R65's is another
End is connected with the positive input (port 3) of one end of resistance R64 and component U6A, the other end and resistance R62 of resistance R64
And one end of capacitor C59 is connected, the automobile-used three-phase IGBT intelligent power module U8 in the other end and drive module of resistance R62
W phase lower bridge arm output end (port 23) be connected, the other end of capacitor C59 is connected with one end of resistance R63 and resistance R61,
The other end of resistance R61 is connected with the U phase lower bridge arm output end (port 21) of automobile-used three-phase IGBT intelligent power module U8, resistance
The other end of R63 is connected with one end of the reverse input end (port 2) of component U6A and resistance R66, the other end of resistance R66
It is connected with the output end (port 1) of one end of resistance R67 and component U6A, the other end of resistance R67 and one end of capacitor C61
Connect the input end of analog signal (port 20) of microprocessor module microprocessor chip U1, the other end and capacitor C60 of capacitor C61
A termination simulation ground (port AGND), the other end of capacitor C60 and the operational amplifier U6 power input on component U6A
(port 4) connects low-tension supply modular power source port (port A3.3V)；One end of capacitor C63 and one end connecting component of resistance R73
The output end (port 14) of U6D, another termination simulation ground (port AGND) of capacitor C63, the other end and resistance of resistance R73
The positive input (port 5) of one end relay part U6B of R71, the other end of resistance R71 and one end of resistance R69 and capacitor
One end of C62 is connected, the V phase lower bridge arm output end (end of the other end of resistance R69 and automobile-used three-phase IGBT intelligent power module U8
22) mouth is connected, one end of the other end and resistance R70 of capacitor C62, R68 is connected, the other end of resistance R68 and automobile-used three-phase
The U phase lower bridge arm output end (port 21) of IGBT intelligent power module U8 is connected, the other end of resistance R70 and the one of resistance R72
The reverse input end (port 6) of end and component U6B are connected, the other end of resistance R72 and the output end (port 7) of component U6B
And one end of resistance R74 is connected, the other end of resistance R74 and one end of capacitor C64 and microprocessor module microprocessor core
The input end of analog signal (port 21) of piece U1 is connected, another termination simulation ground (port AGND) of capacitor C64；Resistance R53's
One end connect the U phase lower bridge arm output end (port 21) of automobile-used three-phase IGBT intelligent power module U8, resistance with test point TP10
The other end of R53 is connected with one end of resistance R55 and capacitor C55, the other end of resistance R55 and one end of resistance R57 and
The positive input (port 10) of component U6C is connected, and another termination simulation ground (port AGND) of resistance R57, resistance C55's is another
One end of one end and resistance R52, R54 are connected, the other end and test point TP11 of resistance R52 with connecing electrical source of power (port
PGND), the other end of resistance R54 is connected with the reverse input end (port 9) of one end of resistance R56 and component U6C, resistance
One end of the output end (port 8) of the other end of R56 and component U6C, test point TP12, one end of capacitor C56 and resistance R58
It is connected, the analog signal input of the other end of resistance R58 and one end of capacitor C57 and microprocessor module microprocessor chip U1
(port 22) is held to be connected, another termination simulation ground (port AGND) of capacitor C56, C57；A termination low-tension supply of resistance R60
Modular power source port (port A3.3V), the other end and one end of capacitor C58, one end of resistance R59 and the component of resistance R60
The positive input (port 12) of U6D is connected, the other end of capacitor C58 and resistance R59 with connecing simulation (port AGND), component
The reverse input end (port 13) of U6D is connected with output end (port 14) and test point TP13, the operation amplifier on component U6D
Device U6 ground terminal (port 11) is with connecing simulation (port AGND).MCP6024 can be used in the operational amplifier U6.
As shown in figure 14, data acquisition module include resistance R94, R95, R96, R97, sampling resistor RS98, RS99,
RS100, RS101, RS102, RS103, capacitor C69, C70；One end of sampling resistor RS101 and sampling resistor RS100 with it is automobile-used
The V phase lower bridge arm output end (port 22) of three-phase IGBT intelligent power module U8 is connected, sampling resistor RS101 and sampling resistor
The other end of RS100 and one end of sampling resistor RS98, RS99, RS102, RS103 and automobile-used three-phase IGBT intelligent power mould
The U phase lower bridge arm output end (port 21) of block U8 is connected, another termination power of sampling resistor RS102 and sampling resistor RS103
Power ground (port PGND), the other end and automobile-used three-phase IGBT intelligent power mould of sampling resistor RS98 and sampling resistor RS99
The W phase lower bridge arm output end (port 23) of block U8 is connected, one end of resistance R94 and one end of capacitor C69 and microprocessor mould
The input end of analog signal (port 19) of block microprocessor chip U1 is connected, the other end and resistance R95 of resistance R94, and the one of R96
End and one end of capacitor C70 are connected, the other end of capacitor C69, C70 and resistance R95 with connecing simulation (port AGND), resistance
The other end of R96 is connected with one end of resistance R97, the other end of resistance R97 and the electrical source of power output end of high-voltage power module
(port DC+) is connected.1% resistance alloys can be used in the sampling resistor.
Obviously present invention specific implementation is not subject to the restrictions described above, as long as using method concept and skill of the invention
The improvement for the various unsubstantialities that art scheme carries out, it is within the scope of the present invention.
Claims (10)
1. a kind of electric automobile air conditioner electric compressor machine control system, for controlling 380V three-phase direct-current brushless motor, feature
It is, the control system includes: microprocessor module (1), data acquisition module (2), amplifier module (3), comparator module
(4), drive module (5), the microprocessor module (1) respectively with the data acquisition module (2), amplifier module (3), compared with
Device module (4), drive module (5) connection, the data acquisition module (2) is through the amplifier module (3) and the comparator (4)
Module connection, the control system further includes low-tension supply module (6) and high-voltage power module (7), the low-tension supply module
(6) it is connect respectively with the microprocessor module (1), amplifier module (3), drive module (5), the high-voltage power module (7)
It is connect respectively with the data acquisition module (2), the drive module (5), in which:
The data acquisition module (2) is used to acquire the electricity of the biphase current data of motor compressor, the high-voltage power module
Data are pressed, and biphase current data are sent to the amplifier module, voltage data is sent to the microprocessor module；
The amplifier module (3) is used to biphase current data amplifying processing, and sends it to the microprocessor mould
Block, while wherein a phase current data will be sent to the comparator module；
The comparator module (4) sends comparison result for being compared received phase current data with preset value
To the microprocessor module；
The microprocessor module (1) calculates the position of electric compressor machine rotor for biphase current data based on the received and turns
Square generates control signal according to the data that the position of rotor and torque and the comparator module are sent and is sent to the driving
Module；
The drive module (5) is used to receive the control signal that the microprocessor module module is sent, and is believed according to this control
Number control direct current drive compressor operating；
The low-tension supply module (6) is for providing stable 3.3V, 5V, 12V, 15V power supply for system；
The high-voltage power module (7) is for providing stable 380V driving voltage for the drive module.
2. electric automobile air conditioner electric compressor machine control system according to claim 1, it is characterised in that: the data are adopted
Collection module (2) is also used to be sent to the microprocessor module (1) after the voltage data of acquisition is divided, is filtered.
3. electric automobile air conditioner electric compressor machine control system according to claim 2, it is characterised in that: the micro process
Device module (1) is also used to for received voltage data being compared with preset value, and generates control signal hair according to comparison result
It send to the drive module (5).
4. electric automobile air conditioner electric compressor machine control system according to claim 3, it is characterised in that: the control system
System further includes CAN communication module (8), the CAN communication module (8) respectively with the low-tension supply module (6), microprocessor mould
Block (1), air-conditioner controller connection, the microprocessor module (1) by the CAN communication module (8) and air-conditioner controller into
The transmission of row data.
5. electric automobile air conditioner electric compressor machine control system according to any one of claims 1 to 4, it is characterised in that:
The drive module (5) uses automobile-used three-phase IGBT intelligent power module, and the three-phase IGBT intelligent power module includes PWM mutual
Complement signal input terminal, temperature output port, failure output port and short-circuit protection port, the temperature output port are filtered through π type
Wave circuit is connect with the AD signal acquisition port of the microprocessor module (1), the failure output port and the micro process
The I/O interface of device module (1) connects, the PWM complementary signal input terminal and the microprocessor of the IGBT intelligent power module
The PWM complementary signal output end of module (1) connects, the sampled resistance in short-circuit protection port and the data acquisition module
(2) output end connection.
6. electric automobile air conditioner electric compressor machine control system according to claim 5, it is characterised in that: the low tension
Source module (6) includes power-switching circuit, EMI filter circuit, transformer output circuit and output of pulse signal circuit, the electricity
Power-switching circuit includes 5V power-switching circuit and 3.3V power-switching circuit, the input terminal of the 5V power-switching circuit and institute
State the output end connection of EMI filter circuit, the input terminal of the 3.3V power-switching circuit and the transformer output circuit
Output end connection, the 5V power-switching circuit are that CAN communication module (8) provide power supply, and the 3.3V power-switching circuit is
Microprocessor module (1), CAN communication module (8), amplifier module (3), drive module (5) provide power supply.
7. electric automobile air conditioner electric compressor machine control system according to claim 6, it is characterised in that: the EMI filter
Wave circuit provides stable 12V power supply for control system for being filtered to the external 12V low-tension supply of introducing.
8. electric automobile air conditioner electric compressor machine control system according to claim 7, it is characterised in that: the transformer
The input terminal of output circuit is connect with the output end of the EMI filter circuit, the output end of the transformer output circuit and institute
Drive module (5) connection is stated, stable 15V low-tension supply is provided for the drive module (5), the transformer output circuit is adopted
With isolated form transformer, for being physically separated to its input terminal and output end.
9. electric automobile air conditioner electric compressor machine control system according to claim 8, it is characterised in that: the pulse letter
Number output circuit includes loop Current-type PWM Controller, three terminal regulator and optocoupler, and the loop Current-type PWM Controller is for controlling institute
The primary voltage for stating transformer output circuit makees cyclically-varying, the 15V feedback network of the three terminal regulator and optocoupler composition
It is input to the inside of the loop Current-type PWM Controller, the secondary voltage of the transformer output circuit is finely adjusted, keeps it steady
It is scheduled on 15V.
10. a kind of controlling party based on the described in any item electric automobile air conditioner electric compressor machine control systems of claim 1-9
Method, which comprises the following steps:
A. each circuit in the control system is initialized；
B. the biphase current data of motor compressor and the voltage data of high-voltage power module (7) are acquired；
C. the biphase current data of collected motor compressor are sent to the microprocessor module after enhanced processing
(1), while the phase current after enhanced processing comparator module (4) is sent to be compared with setting value；
D. the microprocessor module (1) and preset value are sent to after collected voltage data being divided, is filtered
It is compared；
E. drive module (5) output temperature AD value is to microprocessor module, the microprocessor module (1) by itself and preset value into
Row compares；
F. the microprocessor module (1) calculates the position of electric compressor machine rotor according to the biphase current data received；
G. the signal that the microprocessor module (1) sends according to the comparator received, judge motor compressor whether overcurrent,
And the drive module is sent a control signal to according to comparison result；
H. the microprocessor module (1) is according to voltage data, the comparison result of temperature AD value, judge motor compressor whether mistake
Pressure, under-voltage, excess temperature, and the drive module (5) are sent a control signal to according to comparison result；
I. microprocessor module (1) is according to whether acquisition square wave disablement signal, sends a control signal to the drive module (5)；
J. the drive module (5) controls signal based on the received and controls the 380V three-phase direct-current brushless motor work.
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| CN114389506A (en) * | 2021-12-30 | 2022-04-22 | 杭州电子科技大学 | Electric automobile driving motor intelligent control circuit based on noninductive |
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