CN106330008B - A kind of on-board air conditioner motor control method and device - Google Patents
A kind of on-board air conditioner motor control method and device Download PDFInfo
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- CN106330008B CN106330008B CN201610797704.5A CN201610797704A CN106330008B CN 106330008 B CN106330008 B CN 106330008B CN 201610797704 A CN201610797704 A CN 201610797704A CN 106330008 B CN106330008 B CN 106330008B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
Abstract
The present invention provides on-board air conditioner motor control method and device, method include: S1, system initialization；S2, from HMI obtaining mode, the parameter of temperature and inner-outer circulation motor, generate motor position request, be stored in command buffer；Motor position request data in S3, reading order buffer area；S4, judge except this request target motor in addition to remaining motor drive direction whether be in stopping when, be arranged this request target motor target position, otherwise by it is described this request target motor target position request writing commands buffer area；S5, the corresponding stall counter O reset of target motor for requesting this；S6, judge this request motor whether stall occurs, be arranged this request target motor state be brake, direction is stopping, otherwise enter in next step；S7, the target motor for controlling this request turn to target position.The present invention realizes the consistency for keeping air-conditioner controller circuit, reduces air-conditioner controller cost.
Description
Technical field
The present invention relates to air conditioning for automobiles control technology field more particularly to a kind of on-board air conditioner motor control methods and dress
It sets.
Background technique
Existing on-board air conditioner is generally made of air-conditioner controller, System cabine, compressor, condenser etc., with now double
Area, multi-region air-conditioning are more more and more universal, and the number of motors in System cabine also gradually increases.
The motor-drive circuit output port number of air-conditioner controller depends on the number of motors in System cabine, generally adopts at present
With the mode of parallel control, two delivery outlets drive a motor.For single area's automatic air condition, three motors (temperature is generally comprised
Degree, mode and each one of inner-outer circulation motor), then need 6 tunnels to export；Two-region automatic air condition (including two temperature motors) then needs
8 tunnels are wanted to export；Three area's automatic air conditions (including three temperature motors) then need 10 tunnels to export, as shown in Figure 1.With number of motors
Increase can be using the more driving IC of output port number when motor-drive circuit output port number is inadequate, or adopt
Meet application demand with multiple motor-drive circuits.It will lead to original motor-drive circuit in this way to be modified, need weight
The feasibility of the circuit is newly verified, in addition also will increase the cost of controller.
Therefore, the prior art is further improved.
Summary of the invention
The present invention provides a kind of on-board air conditioner motor control method and device, it is intended to defect in the prior art is solved, it is real
The consistency for now keeping mono-/bis-area air-conditioner controller circuit, reduces air-conditioner controller cost.
In order to achieve the above objectives, the technical solution used in the present invention are as follows:
One aspect of the present invention provides a kind of on-board air conditioner motor control method, comprising:
S1, system initialization；
S2, the parameter that target motor is obtained from HMI, generate target motor position requests, are stored in command buffer；
Target motor position data request in S3, reading order buffer area；
S4, judge except this request target motor in addition to remaining motor drive direction whether be in stopping when, be to be arranged
The target position of the target motor of this request, otherwise by the target position request write-in life of the target motor of this request
Enable buffer area；
S5, the corresponding stall counter O reset of target motor for requesting this；
S6, judge whether the motor of this request occurs stall, be that the state of target motor of this request is arranged to be
Brake, direction are to stop, and are otherwise entered in next step；
S7, the target motor for controlling this request turn to target position.
Specifically, the step S7 includes:
S701, the current location feedback sample voltage for reading the target motor that this is requested, and judge the mesh of this request
In the normal range whether the current location value of feedback for marking motor, be to execute S702, otherwise execute S703；
S702, the target motor state that this request is arranged are brake, direction is stopping；
S703, calculate this request target motor current location value of feedback and target value between error amount, according to
The error amount controls state and the direction of motor；
S704, calculate this request target motor front and back position feedback sampled voltage twice difference, when the difference
When the absolute value of value is less than stall threshold value, stall counter adds 1, and return step S5.
Specifically, the step S703 includes:
When error amount is located at starting dead zone right endpoint the right, motor status is operation, and direction is clockwise；Work as error amount
When positioned at the starting dead zone left end point left side, motor status is operation, and direction is counterclockwise；When error amount is located in starting dead zone
When, motor status is brake, and direction is to stop.
Specifically, the step S1 includes: to be arranged that the state of all motors is brake, direction is stopping, command buffer
For sky.
Specifically, the target motor includes mode, temperature and inner-outer circulation motor.
Specifically, the command buffer includes array, fifo queue, chained list.
Another aspect of the present invention provides a kind of on-board air conditioner motor control assembly, including initialization module, motor status are set
Set module, command buffer module, HMI parameter acquisition module, motor position request module, order writing module, order reading
Module, motor status judgment module, motor position setup module, counter O reset module, stall counter, stall judge mould
Block, motor status setup module, motor drive module；
The initialization module is initialized for control system；
The motor status setup module, for the operating status of motor to be arranged；
The command buffer module, for caching motor position request command；
The HMI parameter acquisition module, for obtaining the parameter of motor from HMI；
The motor position request module, for generating motor position request；
The order writing module is used for motor position request command writing commands buffer zone module；
The order read module, for reading motor position request from order buffer zone module；
The motor status judgment module, for judging the operating status of each motor；
The motor position setup module, for the target position of target motor to be arranged；
The counter O reset module, for by the stall counter O reset of target motor；
The stall judgment module, for according to the counting of stall counter judge motor whether stall；
The motor status setup module, for the operating status of each motor to be arranged；
The motor drive module is operated for driving motor；
The stall counter, for being counted according to the result of voltage difference computing module.
Specifically, the motor drive module includes feedback voltage acquisition module, feedback position judgment module, error amount meter
Calculate module, voltage difference computing module, motor drive direction control module；
The feedback voltage acquisition module, for obtaining the current location feedback sample voltage of target motor；
The feedback position judgment module, for judging the current location value of feedback of target motor whether in normal range (NR)
It is interior；
The error amount computing module, for calculating the error between the current location value of feedback of target motor and target value
Value；
The voltage difference computing module, for calculating the difference of the front and back of target motor position feedback sampled voltage twice
Value；
The motor control module, for controlling state and the direction of motor according to error amount.
The beneficial effects of the present invention are: the present invention drives multiple air-conditionings by way of Serial Control, time-sharing multiplex I/O
Motor realizes the consistency for keeping mono-/bis-area air-conditioner controller circuit, reduces the purpose of air-conditioner controller cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of on-board air conditioner motor control in the prior art；
Fig. 2 is on-board air conditioner motor control block diagram of the invention；
Fig. 3 is on-board air conditioner motor control method flow diagram of the invention；
Fig. 4 is motor control process flow schematic diagram of the invention；
Fig. 5 is electric motor starting dead zone schematic diagram of the invention；
Fig. 6 is the structural schematic diagram of on-board air conditioner motor control of the invention.
Specific embodiment
Specifically illustrate embodiments of the present invention with reference to the accompanying drawing, attached drawing is only for reference and illustrates use, does not constitute pair
The limitation of the invention patent protection scope.
On-board air conditioner motor control block diagram of the invention as shown in Fig. 2, OUT1~OUT6 is the control port of control unit,
M1~M6 is motor.Adjacent motor shares a control port two-by-two, for example, motor M1, motor M2 share control port
OUT2, motor M2, motor M3 share control port OUT3 ... and so on.By way of motor joining, saving is reached
The purpose of control port.The number of motors that 2n port can control is 2n-1, and motor is more, control port quantity reduction effect
It is more obvious.
Based on above-mentioned on-board air conditioner motor control block diagram, as shown in figure 3, on the one hand the embodiment of the present invention provides a kind of vehicle
Carry air conditioner motor control method, comprising:
Step 1, system initialization, the state that all motors are arranged is brake, direction is stopping, and command buffer is sky.
Since adjacent motor cannot move at the same time, in order to avoid maloperation and simplified control process, by the operation shape of motor
State is divided into " RUN " and " brake ", and the rotation direction of motor is divided into clockwise, counterclockwise and stops.The same time only allows one
Motor rotation, during the motor operation, remaining motor needs to keep " brake " state, that is to say, that only when except target electricity
The direction of remaining all motor except machine is just to allow to send position command to target motor, prevent adjacent electricity when stopping
Machine rotates simultaneously.
Due in a motor movement, remaining motor akinesia, in order to avoid there is user's operation not in the period
The case where response, need motor control order all in this period being stored to a command buffer, command buffer
Including but not limited to array, fifo queue, chained list.
Step 2, from HMI obtaining mode, the parameter of temperature and inner-outer circulation motor, generate motor position request, deposit life
It enables in buffer area.
HMI (Human Machine Interface, man-machine interface) is the major way of user's control air-conditioning, is passed through
Blowing mode, target temperature, circulation pattern etc. can be set in HMI, user.By obtaining the setting parameter in HMI, can be obtained
The target component of each motor generates motor position request.
Motor position request data in step 3, reading order buffer area.
Step 4, judge except this request target motor in addition to remaining motor drive direction whether be in stopping when, be to set
The target position of the target motor of this request is set, write-in is otherwise requested into the target position of the target motor of this request
Command buffer.
Step 5, the corresponding stall counter O reset of target motor for requesting this.
Step 6 judges whether the motor of this request occurs stall, is the state that the target motor of this request is arranged
It is stopping for brake, direction, otherwise enters in next step.
Since stall failure can make motor that can not turn to target position, being constantly in operating status, (direction is not to stop
Only), thus control command cannot be sent to remaining motor, and long-time stall is easily damaged motor (locked rotor current compares
Greatly), it is therefore desirable to judge whether that stall occurs.
Specifically, judged by judging whether stall counter is more than preset threshold, if it exceeds the threshold, then table
Bright that stall has occurred, setting motor status is brake, and direction is to stop.Preset threshold is demarcated according to the actual situation, is then blocked up greatly very much
Turn overlong time, it is too small to be then easy false triggering stall failure.
Step 7, the target motor for controlling this request turn to target position.
Under normal circumstances, each gear of air conditioning mode motor corresponds to a voltage value.
As shown in figure 4, specifically, the step 7 includes:
Step 701, the current location feedback sample voltage for reading the target motor that this is requested, and judge this request
In the normal range whether the current location value of feedback of target motor, be to then follow the steps 702, no to then follow the steps 703；
Step 702, the target motor state that this request is arranged are brake, direction is stopping；
Error amount between step 703, the current location value of feedback and target value of the target motor for calculating this request, root
State and the direction of motor are controlled according to the error amount.
As shown in figure 5, feedback voltage fluctuation causes motor to be shaken near target position in order to prevent, need to be arranged starting
Dead zone D, the size for starting dead zone are demarcated according to the actual situation, will lead to very much motor control inaccuracy greatly, too small, are easy to make electricity
Machine shake.In the specific implementation, the size that the starting dead zone is arranged is 2a, and the left and right endpoint in section is centered on target position
Symmetrical, specifically, using target position as origin (0,0), left end point is (- a, 0), and right endpoint is (a, 0).If error amount
In starting dead zone, then any operation is not executed, conversely, controlling motor operating state according to error amount.
Specifically, the step 703 includes:
When error amount is located at starting dead zone right endpoint the right, motor status is operation, and direction is clockwise；Work as error amount
When positioned at the starting dead zone left end point left side, motor status is operation, and direction is counterclockwise；When error amount is located in starting dead zone
When, motor status is brake, and direction is to stop.
Step 704, calculate this request target motor front and back position feedback sampled voltage twice difference, when described
When the absolute value of difference is less than stall threshold value, stall counter adds 1, and return step 5.
When front and back twice the difference of position feedback sampled voltage absolute value be less than stall threshold value when, show the period electricity
Machine rotates too slow, and stall may will occur.
As shown in fig. 6, another aspect of the present invention provides a kind of on-board air conditioner motor control assembly, including initialization module,
Motor status setup module, command buffer module, HMI parameter acquisition module, motor position request module, order write-in mould
Block, order read module, motor status judgment module, motor position setup module, counter O reset module, stall counter,
Stall judgment module, motor status setup module, motor drive module；
The initialization module is initialized for control system；
The motor status setup module, for the operating status of motor to be arranged；
The command buffer module, for caching motor position request command；
The HMI parameter acquisition module, for obtaining the parameter of motor from HMI；
The motor position request module, for generating motor position request；
The order writing module is used for motor position request command writing commands buffer zone module；
The order read module, for reading motor position request from order buffer zone module；
The motor status judgment module, for judging the operating status of each motor；
The motor position setup module, for the target position of target motor to be arranged；
The counter O reset module, for by the stall counter O reset of target motor；
The stall judgment module, for according to the counting of stall counter judge motor whether stall；
The motor status setup module, for the operating status of each motor to be arranged；
The motor drive module is operated for driving motor；
The stall counter, for being counted according to the result of voltage difference computing module.
The motor drive module include feedback voltage acquisition module, feedback position judgment module, error amount computing module,
Voltage difference computing module, motor drive direction control module；
The feedback voltage acquisition module, for obtaining the current location feedback sample voltage of target motor；
The feedback position judgment module, for judging the current location value of feedback of target motor whether in normal range (NR)
It is interior；
The error amount computing module, for calculating the error between the current location value of feedback of target motor and target value
Value；
The voltage difference computing module, for calculating the difference of the front and back of target motor position feedback sampled voltage twice
Value；
The motor control module, for controlling state and the direction of motor according to error amount.
The course of work of on-board air conditioner motor control assembly of the invention are as follows:
Firstly, initialization module control system initializes, main includes that all electricity are arranged in control motor status setup module
The state of machine is brake, direction is stopping, emptying command buffer module.
After the completion of system initialization, HMI parameter acquisition module is from HMI obtaining mode, the ginseng of temperature and inner-outer circulation motor
Number passes to motor position request module and generates motor position request, and is stored in command buffer module by order writing module
In.
Then, order read module reads motor position request data, motor status judgement from order buffer zone module
It when module judges whether remaining motor drive direction in addition to the target motor of this request is in stopping, being set by motor position
Set module be arranged this request target motor target position, otherwise by order writing module by it is described this request target
Request writing commands buffer area in the target position of motor.
The corresponding stall counter O reset of the target motor that counter O reset module requests this, stall judgment module are sentenced
Whether the motor that this is requested that breaks occurs stall, is, the target motor motor of this request is arranged by motor status setup module
State is brake, and direction is to stop, and the target motor that otherwise motor drive module controls this request turns to target position.
Specifically, the target motor that motor drive module controls this request turns to the course of work of target position
Are as follows:
Feedback voltage acquisition module reads the current location feedback sample voltage of the target motor of this request, and by feeding back
Whether in the normal range position judging module judges the current location value of feedback of the target motor of this request, is then by motor
State setting module be arranged this request target motor state be brake, direction is stopping, otherwise by error amount computing module
The error amount between the current location value of feedback and target value of the target motor of this request is calculated, then motor drive direction controls mould
Root tuber controls state and the direction of motor according to the error amount, while voltage difference computing module calculates the target of this request
The difference of the front and back of motor position feedback sampled voltage twice, when the absolute value of the difference is less than stall threshold value, stall meter
Number device adds 1.
Above disclosed is only presently preferred embodiments of the present invention, cannot limit rights protection model of the invention with this
It encloses, therefore according to equivalent variations made by scope of the present invention patent, is still within the scope of the present invention.
Claims (8)
1. a kind of on-board air conditioner motor control assembly, including a control unit, at least two motors, a motor drive module, institute
Stating control unit includes at least three control ports, and there are two control foot for the motor tool, which is characterized in that the motor passes through
Tandem connection, two control feet of the motor are connect with two control ports of described control unit respectively, the electricity
The control foot of motor adjacent two-by-two shares a control port in machine, and described control unit includes: initialization module, electricity
Machine state setting module, command buffer module, HMI parameter acquisition module, motor position request module, order writing module,
Order read module, motor status judgment module, motor position setup module, counter O reset module, stall counter, stall
Judgment module, motor status setup module；
The initialization module is initialized for control system；
The motor status setup module, for the operating status of motor to be arranged；
The command buffer module, for caching motor position request command；
The HMI parameter acquisition module, for obtaining the parameter of motor from HMI；
The motor position request module, for generating motor position request；
The order writing module is used for motor position request command writing commands buffer zone module；
The order read module, for reading motor position request from order buffer zone module；
The motor status judgment module, for judging the operating status of each motor；
The motor position setup module, for the target position of target motor to be arranged；
The counter O reset module, for by the stall counter O reset of target motor；
The stall judgment module, for according to the counting of stall counter judge motor whether stall；
The motor status setup module, for the operating status of each motor to be arranged；
The motor drive module is operated for driving motor；
The stall counter, for being counted according to the result of voltage difference computing module；
The initialization module is connect with the motor status setup module, command buffer module, the command buffer mould
Block is connect with the order read module, order writing module, the motor status judgment module and the order read module,
Order writing module, the connection of motor position setup module, the motor position request module and the order writing module, HMI
Parameter acquisition module connection, the counter O reset module is connect with the motor position setup module, stall counter, described
Motor drive module is connect with the stall counter, stall judgment module, motor status setup module, the stall counter
It is sequentially connected with the stall judgment module, motor status setup module；
Motor status setup module is controlled by initialization module and is arranged that the state of all motors is brake, direction is stopping, clearly
Null command buffer zone module；The parameter that target motor is obtained by HMI parameter acquisition module, passes to motor position request module
Motor position request is generated, and command buffer module is stored in by order writing module；It is slow from order by order read module
Reading motor position request data in area's module is rushed, motor status judgment module judges in addition to the target motor of this request
It when whether remaining motor drive direction is in stopping, is that the target of the target motor of this request is set by motor position setup module
Otherwise writing commands buffer area is requested by order writing module in the target position of the target motor of this request by position；
The corresponding stall counter O reset of target motor for being requested this by counter O reset module, the judgement of stall judgment module is originally
Whether the motor of secondary request occurs stall, is, the target motor motor status of this request is arranged by motor status setup module
For brake, direction is to stop, and the target motor that otherwise motor drive module controls this request turns to target position.
2. on-board air conditioner motor control assembly according to claim 1, which is characterized in that the motor drive module includes
Feedback voltage acquisition module, feedback position judgment module, error amount computing module, voltage difference computing module, motor drive direction control
Molding block；
The feedback voltage acquisition module, for obtaining the current location feedback sample voltage of target motor；
The feedback position judgment module, for whether in the normal range to judge the current location value of feedback of target motor；
The error amount computing module, for calculating the error amount between the current location value of feedback of target motor and target value；
The voltage difference computing module, for calculating the difference of the front and back of target motor position feedback sampled voltage twice；
The motor control module, for controlling state and the direction of motor according to error amount.
3. a kind of on-board air conditioner motor control method based on on-board air conditioner motor control assembly described in claim 1, feature
It is, comprising:
S1, system initialization；
S2, the parameter that target motor is obtained from HMI, generate target motor position requests, are stored in command buffer；
Target motor position data request in S3, reading order buffer area；
S4, judge except this request target motor in addition to remaining motor drive direction whether be in stopping when, be that this is set
Otherwise the target position of the target motor of request delays the target position request writing commands of the target motor of this request
Rush area；
S5, the corresponding stall counter O reset of target motor for requesting this；
S6, judge this request motor whether stall occurs, be arranged this request target motor state for brake,
Direction is to stop, and is otherwise entered in next step；
S7, the target motor for controlling this request turn to target position.
4. on-board air conditioner motor control method according to claim 3, which is characterized in that the step S7 includes:
S701, the current location feedback sample voltage for reading the target motor that this is requested, and judge the target electricity of this request
In the normal range whether the current location value of feedback of machine, be to execute S702, otherwise execute S703；
S702, the target motor state that this request is arranged are brake, direction is stopping；
S703, calculate this request target motor current location value of feedback and target value between error amount, according to described
Error amount controls state and the direction of motor；
S704, calculate this request target motor front and back position feedback sampled voltage twice difference, when the difference
When absolute value is less than stall threshold value, stall counter adds 1, and return step S5.
5. on-board air conditioner motor control method according to claim 4, which is characterized in that the step S703 includes:
When error amount is located at starting dead zone right endpoint the right, motor status is operation, and direction is clockwise；When error amount is located at
When starting the dead zone left end point left side, motor status is operation, and direction is counterclockwise；When error amount is located in starting dead zone, electricity
Machine state is brake, and direction is to stop.
6. on-board air conditioner motor control method according to claim 3, which is characterized in that the step S1 includes: setting
The state of all motors is brake, direction is stopping, and command buffer is sky.
7. on-board air conditioner motor control method according to claim 3, which is characterized in that the target motor includes mould
Formula, temperature and inner-outer circulation motor.
8. on-board air conditioner motor control method according to claim 3, which is characterized in that the command buffer includes number
Group, fifo queue, chained list.
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| CN106330008B true CN106330008B (en) | 2019-09-20 |
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| CN104040876A (en) * | 2012-01-16 | 2014-09-10 | 三菱电机株式会社 | Motor controller |
| CN104380590A (en) * | 2012-05-31 | 2015-02-25 | 株式会社电装 | Control unit for air conditioner |
| CN104986054A (en) * | 2015-06-17 | 2015-10-21 | 安徽江淮汽车股份有限公司 | Locked rotor frequency conversion control method and device for drive motors |
| CN105102248A (en) * | 2013-04-03 | 2015-11-25 | 株式会社电装 | Motor controller |
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|---|---|---|---|---|
| US5367236A (en) * | 1992-09-21 | 1994-11-22 | Pitney Bowes Inc. | DC motor stall-detection system |
| JP2001286187A (en) * | 2000-03-31 | 2001-10-12 | Daikin Ind Ltd | Method for controlling fan motor for electric equipment system and its device |
| JP2006149135A (en) * | 2004-11-24 | 2006-06-08 | Hitachi Industrial Equipment Systems Co Ltd | Power conversion device and its control method |
| CN104040876A (en) * | 2012-01-16 | 2014-09-10 | 三菱电机株式会社 | Motor controller |
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| CN106330008A (en) | 2017-01-11 |
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