CN109080408A - A kind of vehicle-mounted air-conditioning ventilation door circuit for controlling motor and its control method - Google Patents
A kind of vehicle-mounted air-conditioning ventilation door circuit for controlling motor and its control method Download PDFInfo
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- CN109080408A CN109080408A CN201810984554.8A CN201810984554A CN109080408A CN 109080408 A CN109080408 A CN 109080408A CN 201810984554 A CN201810984554 A CN 201810984554A CN 109080408 A CN109080408 A CN 109080408A
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Classifications
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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
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/00764—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being a vehicle driving condition, e.g. speed
-
- 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
- B60H1/00835—Damper doors, e.g. position control
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The present invention relates to vehicle-mounted air-conditioning ventilation door motor control method technical fields, more particularly to a kind of automobile air-conditioning throttle circuit for controlling motor and its control method for improving comfort level, including ignition switch, automobile BAT power supply, BAT power circuit, ignition signal detection circuit, MCU, damper motor, motor driver and motor feedback the reference module.Goal of the invention of the invention is to provide a kind of vehicle-mounted air-conditioning ventilation door circuit for controlling motor and its control method, when solving damper motor using technical solution provided by the invention and being not in ideal position, automobile starting moment air-conditioning system blows out abnormal wind-warm syndrome and causes the uncomfortable technical problem of human body.
Description
Technical field
The present invention relates to vehicle-mounted air-conditioning ventilation door motor control method technical field more particularly to a kind of vapour for improving comfort level
Vehicle air conditioner damper circuit for controlling motor and its control method.
Background technique
In automotive air-conditioning system, generally there are temperature mixing damper motor, mode damper motor and internal-external cycle throttle electricity
Machine.Temperature mixing damper motor is used to control the mixed proportion of cold wind and hot wind in air-conditioning system, so that the temperature for the wind produced by boasting
Degree reaches demand；Mode damper motor is used to control the direction of blowout wind；Inner-outer circulating air door motor is for controlling air on vehicle
It is in interior circulation or outer circulation mode.Therefore, the control of damper motor has vital work for automobile comfort level
With.
It is required according to human comfort, usually controls the position of damper motor, allow foot's blowing hot-air, face blows warm wind.
In air conditioning for automobiles normal control, comfort level requirement can satisfy.But when automobile is just lighted a fire, passengers inside the car are general
Operating air conditioner will not be first removed, state when at this moment the position of damper motor is in flame-out is not located in ideal position.
If air-conditioning is in the open state, it is limited to ambient temperature and automobile setting target temperature differs greatly, vapour
Vehicle air-conditioning system can not fast-refrigerating or heating reach target temperature, igniting is likely to occur in a flash, and when summer is directly right
Facial blowing hot-air, the uncomfortable situation that when winter blows a cold wind over against foot.
In the case where the temperature for the wind produced by boasting is not preferred temperature, adjustable mode damper motor, which blows to position, is
Blow face/blow foot (physical feeling to wear clothes) position, this more insensitive position, as shown in Figure 1, can greatly reduce
The discomfort of human body.But be adjusted in the moment of igniting, still discomfort can be brought to people.
Summary of the invention
Goal of the invention of the invention is to provide a kind of vehicle-mounted air-conditioning ventilation door circuit for controlling motor and its control method, uses
When technical solution provided by the invention solves damper motor and is not in ideal position, the blowout of automobile starting moment air-conditioning system is different
Chang Fengwen causes the uncomfortable technical problem of human body.
In order to solve the above-mentioned technical problem, one aspect of the present invention provides a kind of vehicle-mounted air-conditioning ventilation door circuit for controlling motor, packet
Include ignition switch, automobile BAT power supply, BAT power circuit, ignition signal detection circuit, MCU, damper motor, motor driver with
And motor feedback the reference module.
The ignition signal detection circuit accesses between the ignition switch and MCU, for detecting the ignition switch
Misfire signals, and the misfire signals are transmitted to MCU；The damper motor is inputted according to the motor feedback the reference module
Electric signal exports feedback signal to the end AD of the MCU；
The MCU outputs control signals to BAT power circuit and motor driver according to the misfire signals respectively, according to
The feedback signal outputs control signals to the motor feedback the reference module；
The input terminal of the BAT power circuit accesses automobile BAT power supply, and is given respectively according to the control signal of the MCU
The motor feedback the reference module and motor driver power supply；
The motor driver and motor feedback the reference module are according to the control signal of MCU difference output drive signal
With electric signal to the damper motor；
The damper motor is completed corresponding position according to the driving signal and is adjusted.
Preferably, the BAT power circuit includes resistance R1-R4, NPN triode Q1 and PNP triode Q2；The PNP
The emitter of triode Q2 accesses automobile BAT power supply, and base stage accesses the collector of NPN triode Q1, collector by resistance R3
It is respectively connected to the motor feedback the reference module and motor driver；The resistance R4 accesses the base stage of the PNP triode Q2
Between emitter；The base stage of the NPN triode Q1 accesses the MCU_CTRL of the MCU, emitter ground connection by resistance R1；
The base earth that the resistance R2 passes through the NPN triode Q1.
It preferably, further include the capacitor C1 and electricity being grounded respectively by the emitter and collector of the PNP triode Q2
Hold C2.
Preferably, the resistance value of the resistance R1-R4 is respectively 2.2K Ω, 5.6K Ω, 4.7K Ω and 10K Ω；The electricity
The capacitance for holding C1-C2 is 0.1uF.
Preferably, the model BC817-40 of the NPN triode Q1；The model of the PNP triode Q2
BCP53T1。
Based on above-mentioned vehicle-mounted air-conditioning ventilation door circuit for controlling motor, another aspect of the present invention also provides a kind of control method, packet
Include following steps:
S100, the ignition signal detection circuit detect the misfire signals of ignition switch；
S200, detect that MCU_CTRL is set to by the ignition signal of ignition switch, MCU when the ignition signal detection circuit
Low level；The NPN triode Q1 is not turned on, while the PNP triode Q2 being caused to be not turned on, and does not pass through tri- pole PNP
The collector of pipe Q2 is powered to the motor driver and motor feedback the reference module；
S300, detect that the misfire signals of ignition switch, MCU set MCU_CTRL when the ignition signal detection circuit
For high level, the NPN triode Q1 passes through resistance R1 and R2 partial pressure conducting；The PNP triode Q2 by resistance R3, R4 and
The NPN triode Q1 of conducting is switched on；The collector of the PNP triode Q2 is referred to the motor driver and motor feedback
Module for power supply.
In step S300, when the ignition signal detection circuit detects that the misfire signals of ignition switch, MCU will
MCU_CTRL is set to high level, it is preferred that after the ignition signal detection circuit detects the misfire signals of ignition switch,
The ignition signal of ignition switch is not detected in 1min, MCU_CTRL is set to high level by MCU.
From the foregoing, it will be observed that using the present invention can obtain following the utility model has the advantages that
One, after ignition switch is flame-out, the outlet air position of mode damper motor is adjusted to the face of blowing/blow placement of foot automatically,
Just stop working.After ignition switch igniting, even if air-conditioning system just works, the temperature for the wind produced by boasting is not ideal
Temperature will not be directly blown onto the sensitive personal position of the exposure such as face or foot, but blow to wear clothes it is non-sensitive
Personal position, substantially increases comfort level；
Two, when ignition switch is flame-out, after mode damper motor is automatically adjusted to the face of blowing/blow placement of foot, confession is automatically shut down
Electricity keeps the quiescent dissipation of vehicle low；
Three, there is flame-out acknowledging time after stopping working, avoid the interference of unintended signal, improve the anti-interference energy of vehicle
Power.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, the present invention will be implemented below
Attached drawing needed in the description of example or the prior art is briefly described.It should be evident that the accompanying drawings in the following description
Only a part of the embodiments of the present invention, for those of ordinary skill in the art, in not making the creative labor property
Under the premise of, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is that the damper motor of existing on-board air conditioner controls position view；
Fig. 2 is the damper motor control circuit schematic diagram of existing on-board air conditioner；
Fig. 3 is vehicle-mounted air-conditioning ventilation door of embodiment of the present invention circuit for controlling motor schematic diagram；
Fig. 4 is BAT of embodiment of the present invention power circuit schematic diagram；
Fig. 5 is vehicle-mounted air-conditioning ventilation door of embodiment of the present invention motor control method logic chart；
Fig. 6 is vehicle-mounted air-conditioning ventilation door of embodiment of the present invention motor control method flow chart.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It is illustrated in figure 2 the damper motor control circuit schematic diagram of existing on-board air conditioner.The detection of IGDetect detection circuit
To after IG igniting, motor feedback AD value judges the current present position of motor, then controls MotorDriver, driving electricity by MCU
Machine reaches target position.The control circuit may be implemented after IG lights a fire, normal control mode damper motor to suitable position
It sets；And after IG is flame-out, since leakage current will not be generated from BAT access, lower quiescent dissipation requirement may be implemented.
But after IG is flame-out, the power supply of MotorDriver and motor feedback are cut with reference to the power supply Power of 5V
It is disconnected, it cannot achieve control model damper motor to the face of blowing/blow placement of foot, it is therefore desirable to improve.
In this regard, in order to solve the above-mentioned technical problem, the present embodiment provides a kind of vehicle-mounted air-conditioning ventilation door circuit for controlling motor, ask
Referring to Fig. 3, including ignition switch, automobile BAT power supply, BAT power circuit, ignition signal detection circuit, MCU, damper motor, electricity
Machine driver and motor feedback the reference module.In Fig. 3: IG is ignition switch, and BAT is automobile BAT power supply, and BAT Power is
BAT power circuit, IG Detect are ignition signal detection circuit, and Motor Driver is motor driver, and Motor 5V is electricity
Machine feedback reference module, Motor are damper motor.
Wherein ignition switch is respectively connected to motor driver and motor feedback the reference module, and is detected by ignition signal
Circuit accesses between MCU；Automobile BAT plant-grid connection MCU, provides working power VCC for MCU；MCU passes through motor driver respectively
Damper motor is accessed with motor feedback the reference module, damper motor exports feedback signal to MCU；The input terminal of BAT power circuit
Automobile BAT power supply is accessed, output end is respectively connected to motor driver and motor feedback the reference module, and MCU is output control signals to
BAT power circuit.
It, can not since after ignition switch is flame-out, the power supply of motor driver and motor feedback the reference module is cut off
Control model damper motor is realized to the face of blowing/blow placement of foot, in vehicle-mounted air-conditioning ventilation door circuit for controlling motor provided in this embodiment
In, automobile BAT power supply is accessed, motor driver and motor feedback the reference module is enabled to remain to work normally after flame-out, completes wind
The position of door motor adjusts.
The working principle of the vehicle-mounted air-conditioning ventilation door circuit for controlling motor is as follows:
Ignition signal detection circuit is transmitted to MCU after detecting the misfire signals of ignition switch, by misfire signals；
MCU outputs control signals to BAT power circuit according to misfire signals, and BAT power circuit drives after receiving control signal to motor
Dynamic device and the power supply of motor feedback the reference module, enable motor driver and motor feedback the reference module work normally after flame-out；Wind
The electric signal output feedback signal that door motor is inputted according to motor feedback the reference module is to the end AD of MCU, and MCU is based on the feedback signal
Judge the current present position of damper motor, the corresponding control signal of then output to motor driver and motor feedback refers to mould
Block；Motor driver according to the control signal output drive signal to damper motor, damper motor according to driving signal operate to
The position for blowing face/blow foot, completes the adjustment of damper motor；Last BAT power-circuit breaking power supply, guarantees static power also simultaneously
It meets the requirements.
In this regard, referring to Fig. 4, including resistance R1-R4, NPN triode Q1 the present embodiment provides a kind of BAT power circuit
With PNP triode Q2.
In circuit connection structure, the emitter of PNP triode Q2 accesses automobile BAT power supply, and base stage is connect by resistance R3
Enter the collector of NPN triode Q1, collector is respectively connected to motor feedback the reference module and motor driver.Resistance R4 access
Between the base stage and emitter of PNP triode Q2.The base stage of NPN triode Q1 accesses the MCU_CTRL of MCU, hair by resistance R1
Emitter grounding.The base earth that resistance R2 passes through NPN triode Q1.
In circuit, the resistance value of resistance R1-R4 is respectively 2.2K Ω, 5.6K Ω, 4.7K Ω and 10K Ω；Tri- pole NPN
The model BC817-40 of pipe Q1；The model BCP53T1 of PNP triode Q2.It additionally includes and passes through PNP triode respectively
The capacitor C1 and capacitor C2 of the emitter and collector ground connection of Q2, the capacitance of capacitor C1-C2 is 0.1uF, plays filtering and makees
With.
Fig. 5-6 is referred to, above-mentioned BAT power circuit is based on, on the other hand the present embodiment also provides a kind of on-board air conditioner wind
Door motor control method, comprising the following steps:
S100, ignition signal detection circuit detect the ignition signal of ignition switch；
S200, detect that MCU_CTRL is set to low electricity by the ignition signal of ignition switch, MCU when ignition signal detection circuit
It is flat；NPN triode Q1 is not turned on, while PNP triode Q2 being caused to be not turned on, not by the collector of PNP triode Q2 to electricity
Machine driver and the power supply of motor feedback the reference module；
S300, detect that MCU_CTRL is set to height by the misfire signals of ignition switch, MCU when ignition signal detection circuit
Level, NPN triode Q1 pass through resistance R1 and R2 partial pressure conducting；PNP triode Q2 passes through the NPN tri- of resistance R3, R4 and conducting
Pole pipe Q1 is switched on；The collector of PNP triode Q2 is powered to motor driver and motor feedback the reference module.
In step S300, after ignition signal detection circuit detects the misfire signals of ignition switch, in order to avoid frequency
Numerous igniting or maloperation bring motor vibrating, need to confirm that ignition switch is not lighted a fire again within the set time, the setting
Time can be set as 1min, and when the ignition signal of ignition switch is not detected in ignition signal detection circuit in 1min, MCU will
MCU_CTRL is set to high level.
The outlet air position of mode damper motor is adjusted automatically and is arrived after IG is flame-out by technical solution provided in this embodiment
Face/blow placement of foot is blown, is just stopped working.After IG igniting, even if air-conditioning system just works, the temperature for the wind produced by boasting is not
It is ideal temperature, the sensitive personal position of the exposure such as face or foot will not be directly blown onto, but blow to and wear clothes
Non-sensitive personal position, substantially increase comfort level；When IG is flame-out, mode damper motor is automatically adjusted to the face of blowing/blow foot
Behind position, power supply is automatically shut down, keeps the quiescent dissipation of vehicle low；The flame-out acknowledging time of IG of 1min is proposed, is avoided non-pre-
The interference of phase signal improves the anti-interference ability of vehicle.
Embodiments described above does not constitute the restriction to the technical solution protection scope.It is any in above-mentioned implementation
Made modifications, equivalent substitutions and improvements etc., should be included in the protection model of the technical solution within the spirit and principle of mode
Within enclosing.
Claims (7)
1. a kind of vehicle-mounted air-conditioning ventilation door circuit for controlling motor, it is characterised in that: including ignition switch, automobile BAT power supply, BAT electricity
Source circuit, ignition signal detection circuit, MCU, damper motor, motor driver and motor feedback the reference module；
The ignition signal detection circuit accesses between the ignition switch and MCU, for detecting the flame-out of the ignition switch
Signal, and the misfire signals are transmitted to MCU；The telecommunications that the damper motor is inputted according to the motor feedback the reference module
Number output feedback signal is to the end AD of the MCU；
The MCU outputs control signals to BAT power circuit and motor driver according to the misfire signals respectively, according to described
Feedback signal outputs control signals to the motor feedback the reference module；
The input terminal of the BAT power circuit accesses automobile BAT power supply, and is given respectively according to the control signal of the MCU described
Motor feedback the reference module and motor driver power supply；
The motor driver and motor feedback the reference module are according to the control signal of MCU difference output drive signal and electricity
Signal is to the damper motor；
The damper motor is completed corresponding position according to the driving signal and is adjusted.
2. vehicle-mounted air-conditioning ventilation door circuit for controlling motor according to claim 1, it is characterised in that: the BAT power circuit
Including resistance R1-R4, NPN triode Q1 and PNP triode Q2；The emitter access automobile BAT electricity of the PNP triode Q2
Source, base stage by resistance R3 access NPN triode Q1 collector, collector be respectively connected to the motor feedback the reference module and
Motor driver；The resistance R4 is accessed between the base stage and emitter of the PNP triode Q2；The NPN triode Q1
Base stage accesses the MCU_CTRL of the MCU, emitter ground connection by resistance R1；The resistance R2 passes through the NPN triode Q1
Base earth.
3. vehicle-mounted air-conditioning ventilation door circuit for controlling motor according to claim 2, it is characterised in that: further include passing through institute respectively
State the capacitor C1 and capacitor C2 of the emitter and collector ground connection of PNP triode Q2.
4. vehicle-mounted air-conditioning ventilation door circuit for controlling motor according to claim 3, it is characterised in that: the resistance R1-R4's
Resistance value is respectively 2.2K Ω, 5.6K Ω, 4.7K Ω and 10K Ω；The capacitance of the capacitor C1-C2 is 0.1uF.
5. vehicle-mounted air-conditioning ventilation door circuit for controlling motor according to claim 4, it is characterised in that: the NPN triode Q1
Model BC817-40；The model BCP53T1 of the PNP triode Q2.
6. a kind of control method based on the vehicle-mounted air-conditioning ventilation door circuit for controlling motor described in claim 5, it is characterised in that: packet
Include following steps:
S100, the ignition signal detection circuit detect the misfire signals of ignition switch；
S200, detect that MCU_CTRL is set to low electricity by the ignition signal of ignition switch, MCU when the ignition signal detection circuit
It is flat；The NPN triode Q1 is not turned on, while the PNP triode Q2 being caused to be not turned on, and does not pass through the PNP triode Q2
Collector power to the motor driver and motor feedback the reference module；
S300, detect that MCU_CTRL is set to height by the misfire signals of ignition switch, MCU when the ignition signal detection circuit
Level, the NPN triode Q1 pass through resistance R1 and R2 partial pressure conducting；The PNP triode Q2 passes through resistance R3, R4 and conducting
NPN triode Q1 be switched on；The collector of the PNP triode Q2 gives the motor driver and motor feedback the reference module
Power supply.
7. control method according to claim 6, in step S300, when the ignition signal detection circuit detects a little
MCU_CTRL is set to high level by the misfire signals of fire switch, MCU, it is characterised in that: when the ignition signal detection circuit is examined
After the misfire signals for measuring ignition switch, the ignition signal of ignition switch is not detected in 1min, MCU sets MCU_CTRL
For high level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810984554.8A CN109080408A (en) | 2018-08-28 | 2018-08-28 | A kind of vehicle-mounted air-conditioning ventilation door circuit for controlling motor and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810984554.8A CN109080408A (en) | 2018-08-28 | 2018-08-28 | A kind of vehicle-mounted air-conditioning ventilation door circuit for controlling motor and its control method |
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| Publication Number | Publication Date |
|---|---|
| CN109080408A true CN109080408A (en) | 2018-12-25 |
Family
ID=64794776
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810984554.8A Pending CN109080408A (en) | 2018-08-28 | 2018-08-28 | A kind of vehicle-mounted air-conditioning ventilation door circuit for controlling motor and its control method |
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Application publication date: 20181225 |
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