CN105099336A - Shield door system motor control device, system and method - Google Patents
Shield door system motor control device, system and method Download PDFInfo
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- CN105099336A CN105099336A CN201410220726.6A CN201410220726A CN105099336A CN 105099336 A CN105099336 A CN 105099336A CN 201410220726 A CN201410220726 A CN 201410220726A CN 105099336 A CN105099336 A CN 105099336A
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Abstract
The invention discloses a shield door system motor control device, system and method. The device comprises a microcontroller and a motor driving unit. The motor driving unit comprises a driving module further. The driving module is connected with a direct current brush motor or a direct current brushless motor outside selectively. The microcontroller is connected with the driving module of the motor driving unit, and is used for controlling the direct current brush motor or the direct current brushless motor outside. The microcontroller outputs PWM waves to the driving module, and drives the direct current brush motor or the direct current brushless motor outside through the driving module, actions comprising forward rotation, reverse rotation, acceleration, deceleration, rotation at a uniform speed are completed, and compatibility of the direct current brush motor and the direct current brushless motor is achieved. A door control unit based on the device achieves compatibility of the direct current brush motor and the direct current brushless motor, and the technical purposes of reducing spare part number, lowering product management difficulty and raising the maintenance efficiency are achieved.
Description
Technical field
The present invention relates to railway transportation equipment field, especially relate to a kind of the screen door motor control assembly, system and the method thereof that are widely used in compatible direct current brush motor and brushless electric machine in the urban rail transit vehicles field screen doors such as railway locomotive, motor-car, high ferro train, subway.
Background technology
In the whole nation, there is subway construction project in many cities, and screen door is as auxiliary product, effectively can improve waiting environment, improve the fail safe of subway circulation, also can reduce metro operation cost simultaneously.Subway shield electric machine control system is typical electro-mechanical system, drived control motor is carried out by microprocessor controls drive circuit, drive door body to move by motor by mechanical transmission mechanism, realized the accurate control of opposite house body simultaneously by the motor relative rotation speed that feeds back, armature supply, belt wheel relative position.Each cell gate is made up of two fan doors, and the open and close door action of this two fans door has been dragged by belt by a motor, and the action such as rotating forward, reversion, acceleration, deceleration, startup of this motor is then by a DCU(door control unit) control.
For different subway lines, different subway stations, the motor selected may be brush direct current motor or DC brushless motor.(brush direct current motor feedback speed signal is orthogonal optical coded signal or tach signal mainly due to pipe switching frequency, motor own inductance and feedback speed signal up and down for the drive circuit of brush direct current motor and DC brushless motor, DC brushless motor speed feedback signal mainly tach signal) reason, there is certain difference.And based on the motor control method of these differences in current shield door electric machine control system, make door control unit can only solely be applicable to brush direct current motor or DC brushless motor.And existing brush direct current motor is had to the subway line of DC brushless motor, just need a considerable amount of door control unit to make spare part in order to product maintenance, this adds difficulty to the management of product and maintenance, and the utilance of spare part is not high yet.And, in door control unit, the driver part of motor-drive circuit mainly uses IGBT constant power device, due to utilize IGBT constant power device to form driving brush direct current motor, DC brushless motor circuit (different, also make door control unit can only solely be applicable to control to drive brush direct current motor or DC brushless motor.And because of the difference of driven object (brush direct current motor, DC brushless motor), the quantity of IGBT and model are all different.
Therefore, to sum up, the motor control method in prior art screen door can only solely control to drive brush direct current motor or DC brushless motor, and applicability is poor.Existing brush direct current motor is had again to the subway line of DC brushless motor, there is design iterations, extend the possibility of R&D cycle, and need a considerable amount of door control unit to make spare part in order to product maintenance, this both increases difficulty to the management of product and maintaining, also makes the utilance of spare part not high.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of screen door motor control assembly, system and method thereof, door control unit compatible direct current brush motor and the DC brushless motor simultaneously based on this device can be made, and realize effective technical purpose reducing spare part quantity, reduce management of product difficulty, improve maintenance efficiency.
In order to realize foregoing invention object, the present invention specifically provides a kind of technic relization scheme of screen door motor control assembly, a kind of screen door motor control assembly, comprising: microcontroller, electric-motor drive unit, described electric-motor drive unit comprises driver module further.Described driver module is alternatively connected with the brush direct current motor of outside or DC brushless motor, and described microcontroller is connected with the driver module of described electric-motor drive unit, for controlling outside brush direct current motor or DC brushless motor.Described microcontroller exports PWM ripple to described driver module, brush direct current motor or the DC brushless motor of described outside is driven by described driver module, complete and comprise rotating forward, reversion, acceleration, deceleration, action at the uniform velocity, realize the compatibility to described brush direct current motor and DC brushless motor.
Preferably, described driver module adopts three-phase bridge circuit structure further.
Preferably, when described motor control assembly drives described brush direct current motor, H-bridge circuit is formed by any two-phase in three-phase bridge circuit in described driver module, the two phase PWM ripple that described microcontroller exports, control the break-make of four switching tubes in the H-bridge circuit of described driver module, realize described brush direct current motor and perform an action according to the rate curve of setting.
Preferably, when described motor control assembly drives described DC brushless motor, described microcontroller exports three-phase PWM ripple, controls the break-make of six switching tubes in three-phase bridge circuit in described driver module, realizes described DC brushless motor and performs an action according to the rate curve of setting.
Preferably, described motor control assembly comprises speed input module further, the tach signal coming from outside brush direct current motor or DC brushless motor exports described microcontroller to by described speed input module, and described microcontroller obtains the rotating speed of current described brush direct current motor or DC brushless motor by calculating.
Preferably, described electric-motor drive unit comprises safety relay further, described driver module is connected, by described brush direct current motor or the action of DC brushless motor drive shield door by the brush direct current motor of described safety relay and outside or DC brushless motor.When adopting shield door described in manual mode push-and-pull, the connection between described driver module and brush direct current motor or DC brushless motor disconnects, and the resistance of motion reduction of described shield door, is convenient to manually be opened or closed by described shield door.
Preferably; described motor control assembly comprises overcurrent protection module further; the bus current signal coming from described driver module exports described microcontroller to by the collection of described overcurrent protection module; when described bus current signal exceedes set point; suitably reduce the duty ratio of described PWM ripple by described microcontroller or turn off described driver module, or disconnecting the external output of described electric-motor drive unit by described safety relay.
The present invention also specifically provides a kind of technic relization scheme of screen door electric machine control system in addition, a kind of screen door electric machine control system, comprise: motor control assembly as above, and the brush direct current motor to be connected with described motor control assembly or DC brushless motor, described motor control assembly is arranged in door control unit.
The present invention also specifically provides a kind of technic relization scheme of screen door motor control method in addition, a kind of screen door motor control method, described electric machine control system comprises motor control assembly, and brush direct current motor or DC brushless motor, described motor control assembly comprises microcontroller and electric-motor drive unit further, described electric-motor drive unit comprises driver module further, and described motor control method comprises the following steps:
S100: described microcontroller controls described brush direct current motor or DC brushless motor by the driver module of described electric-motor drive unit; Described microcontroller exports PWM ripple to described driver module, described brush direct current motor or DC brushless motor is driven by described driver module, complete and comprise rotating forward, reversion, acceleration, deceleration, action at the uniform velocity, realize the compatibility to described brush direct current motor and DC brushless motor.
Preferably, described motor control assembly also comprises speed input module and overcurrent protection module, and described electric-motor drive unit also comprises safety relay, and described motor control method comprises the following steps:
S101: the tach signal Negotiation speed input module coming from described brush direct current motor or DC brushless motor exports described microcontroller to, described microcontroller calculates the rotating speed obtaining current brush direct current motor or DC brushless motor by described tach signal, control with the rotating speed realizing described brush direct current motor or DC brushless motor;
S102: the bus current signal coming from described driver module is gathered by overcurrent protection module; and export described microcontroller to; when described bus current signal exceedes set point; suitably reduce the duty ratio of described PWM ripple by described microcontroller or turn off the described driver module of control, or being disconnected the external output of described electric-motor drive unit by described safety relay.
Preferably, described step S102 also comprises further:
Described brush direct current motor or DC brushless motor drive shield door action, when the shield door adopting manual mode push-and-pull to be connected with described motor control assembly, connection between described driver module and brush direct current motor or DC brushless motor disconnects, the resistance of motion of described shield door reduces, and is convenient to manually be opened or closed by described shield door.
Preferably, described step S100 comprises further:
When described motor control assembly drives described brush direct current motor, H-bridge circuit is formed by any two-phase in three-phase bridge circuit in described driver module, the two phase PWM ripple that described microcontroller exports, control the break-make of four switching tubes in the H-bridge circuit of described driver module, realize described brush direct current motor and perform an action according to the rate curve of setting;
When described motor control assembly drives described DC brushless motor, described microcontroller exports three-phase PWM ripple, control the break-make of six switching tubes in the three-phase bridge circuit in described driver module, realize described DC brushless motor and perform an action according to the rate curve of setting.
Preferably, described motor control method is further comprising the steps of:
Described electric machine control system also comprises central interface panel, when described electric machine control system is applied to described brush direct current motor or Brush-Less DC motor control, corresponding control program enters described microcontroller by simulator burning in advance, or being sent to described microcontroller by CAN by described central interface panel carries out firmware renewal online, simultaneously online the relevant parameter that described motor control assembly controls described brush direct current motor or DC brushless motor to be modified, the switching frequency of the switching tube of described three-phase bridge circuit is arranged by the PWM wave parameter in the described control program of amendment.
By implementing screen door motor control assembly, system and method thereof that the invention described above provides, there is following technique effect:
(1) instant invention overcomes prior art screen door motor control method can only solely control to drive brush direct current motor or DC brushless motor, the technical problem that applicability is poor;
(2) the present invention has again the subway line of DC brushless motor for existing brush direct current motor, overcomes the defect that there is design iterations, extend the R&D cycle, reduces the difficulty of the management of product and maintaining simultaneously, improve the utilance of spare part;
(3) the present invention drives brush direct current motor or DC brushless motor by PWM ripple, can complete comprise that motor rotates forward, reversion, accelerate, slow down, action at the uniform velocity, can by suitably improving PWM wave frequency, reduce motor-drive circuit to the demand of inductance, realize the unification of brush direct current motor and Brushless DC Motor Drive Circuit;
(4) the present invention can according to the corresponding control program of different control objects burning in advance, and the application program door control unit that utilizes CAN to be burnt to specify by centre panel or batch are burnt in some door control unit, improve the applicability of door control unit, effectively reduce the quantity of door control unit as spare part, and improve the maintainability of product.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the circuit topological structure figure of brush direct current motor drive circuit in the present invention;
Fig. 2 is the circuit topological structure figure of Brushless DC Motor Drive Circuit in the present invention;
Fig. 3 is the structural principle block diagram that a kind of embodiment of screen door motor control assembly of the present invention is applied to brush direct current motor control;
Fig. 4 is the structural principle block diagram that a kind of embodiment of screen door motor control assembly of the present invention is applied to Brush-Less DC motor control;
Fig. 5 is the structure composition frame chart of microcontroller in a kind of embodiment of screen door electric machine control system of the present invention;
Fig. 6 is the circuit theory diagrams of safety relay in a kind of embodiment of screen door motor control assembly of the present invention;
Fig. 7 is the circuit theory diagrams of driver module in a kind of embodiment of screen door motor control assembly of the present invention;
Fig. 8 is the circuit theory diagrams of overcurrent protection module in a kind of embodiment of screen door motor control assembly of the present invention;
Fig. 9 is the circuit theory diagrams of a kind of embodiment medium velocity of screen door motor control assembly of the present invention input module;
In figure: 1-door control unit, 2-microcontroller, 3-electric-motor drive unit; 4-speed input module, 5-overcurrent protection module, 6-driver module; 7-safety relay; 8-brush direct current motor, 9-DC brushless motor, 10-central interface panel; 11-control module; 12-communication module, 13-initialization module, 14-firmware update module.
Embodiment
For the purpose of quoting and know, by the technical term hereinafter used, write a Chinese character in simplified form or abridge and be described below:
CAN:ControllerAreaNetwork, the abbreviation of controller area net;
DCU:DoorControlUnit, the abbreviation of door control unit;
ECAP:EnhancedCapture, the abbreviation of enhancement mode Object Snap;
PSC:PlatformScreendoorsCentralinterfacepanel, the abbreviation of central interface panel, is also called main control computer;
A/D:Analog/Digital, the abbreviation of analog/digital conversion;
IPM:IntelligentPowerModule, the abbreviation of Intelligent Power Module;
PWM:PulseWidthModulation, the abbreviation of pulse width modulation.
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, clear, complete description is carried out to the technical scheme in the embodiment of the present invention.Obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in accompanying drawing 1 to accompanying drawing 9, give the specific embodiment of screen door motor control assembly of the present invention, system and method thereof, below in conjunction with the drawings and specific embodiments, the invention will be further described.
In the screen door of prior art, two fans Men Youyi the driven by motor in each cell gate, the driving of motor is then controlled by door control unit, and current motor selected brush direct current motor and DC brushless motor two kinds.The invention provides a kind of new specific embodiment, make the control that compatible can be applicable to brush direct current motor and DC brushless motor based on door control unit of the present invention, effectively can reduce the quantity of spare part, reduce management of product difficulty, be convenient to product maintenance, improve maintenance efficiency.
As shown in Figure 1, a kind of specific embodiment of screen door motor control assembly, comprising: microcontroller 2, electric-motor drive unit 3, electric-motor drive unit 3 comprises driver module 6 further.Driver module 6 is alternatively connected with the brush direct current motor 8 of outside or DC brushless motor 9, and microcontroller 2 is connected with the driver module 6 of electric-motor drive unit 3, for controlling outside brush direct current motor 8 or DC brushless motor 9.Microcontroller 2 exports PWM ripple to driver module 6, outside brush direct current motor 8 or DC brushless motor 9 is driven by driver module 6, complete and comprise rotating forward, reversion, acceleration, deceleration, action at the uniform velocity, realize the compatibility to brush direct current motor 8 and DC brushless motor 9.Wherein, microcontroller 2 mainly completes the function such as transmission, current sample, data processing, communication of PWM ripple.As a kind of typical specific embodiment of the present invention, the controller with peripheral functionality such as multi-channel PWM, multichannel eCAP, A/D, CAN communication selected by microcontroller 2.Microcontroller 2 can also adopt central processing unit (CPU), flush bonding processor, digital signal processor (DSP), single-chip microcomputer, SOC (system on a chip) (SOC), programmable logic device, and the other forms of arbitrarily device with control, processing capacity well known in the art.As a kind of typical specific embodiment of the present invention, microcontroller 2 can be selected with six road PWM, six road EAP(ExtensibleAuthenticationProtocol, EAP) interface, multi-channel A/peripheral functionality such as D, CAN communication controller.
Electric-motor drive unit 3 mainly comprises driver module 6 and associated peripheral circuits.As shown in Figure 7, the safety relay 7 between driver module 6 and brush direct current motor 8 or DC brushless motor 9 is eliminated in figure.In a kind of specific embodiment of the present invention, driver module 6 have employed IPM(Intelligent Power Module) chip.Be provided with three-phase bridge circuit and corresponding control circuit in IPM chip, simultaneously also with overvoltage, overcurrent and failure detector circuit and the relevant protective circuit such as overheated, fault detection signal can be fed back to microcontroller 2.Wherein, CURR_0 is the bus current signal input part coming from driver module 6, CURR_0 ' ' is for being connected to the signal output part of microcontroller 2, LIN0_0, HIN0_0, LIN1_0, HIN1_0, LIN2_0, HIN2_0 are the PWM ripple input of driver module 6, and U_0 ', V_0 ', W_0 ' are the signal output part of driver module 6.
Driver module 6 adopts three-phase bridge circuit structure further.As shown in Figure 1, when motor control assembly drives brush direct current motor 8, H-bridge circuit is formed by any two-phase in three-phase bridge circuit in driver module 6, the two phase PWM ripple that microcontroller 2 exports, control the break-make of four switching tubes in the H-bridge circuit of driver module 6, realize brush direct current motor 8 and perform an action according to the rate curve of setting.As shown in Figure 2, when motor control assembly drives DC brushless motor 9, microcontroller 2 exports three-phase PWM ripple, controls the break-make of six switching tubes in three-phase bridge circuit in driver module 6, realizes DC brushless motor 9 and performs an action according to the rate curve of setting.
Electric-motor drive unit 3 comprises safety relay 7 further, and driver module 6 is connected by the brush direct current motor 8 of safety relay 7 and outside or DC brushless motor 9, drives shield door action by brush direct current motor 8 or DC brushless motor 9.When adopting manual mode push-and-pull shield door, the connection between driver module 6 and brush direct current motor 8 or DC brushless motor 9 disconnects, and the resistance of motion reduction of shield door, is convenient to manually be opened or closed by shield door.As shown in Figure 6, safety relay 7 comprises the alternative selector switch on three tunnels.Wherein, U_0 ', V_0 ', W_0 ' are the signal input part of safety relay 7, and U_0, V_0, W_0 are that safety relay 7 exports outside brush direct current motor 8 or the signal output part of DC brushless motor 9 to.
Motor control assembly comprises speed input module 4 further, and speed input module 4 mainly completes the rate signal feedback of motor.The tach signal Negotiation speed input module 4 coming from outside brush direct current motor 8 or DC brushless motor 9 exports microcontroller 2 to, and microcontroller 2 obtains the rotating speed of current brush direct current motor 8 or DC brushless motor 9 by calculating.As shown in Figure 9; speed input module 4 is primarily of compositions such as photoelectrical coupler and relevant interface protective circuits; the tach signal that brush direct current motor 8 or DC brushless motor 9 feed back or orthogonal optical coded signal are after speed input module 4 carries out insulation blocking process; be sent to microcontroller 2, and calculated by corresponding algorithm and obtain brush direct current motor 8 or the current relative velocity of DC brushless motor 9.
Motor control assembly comprises overcurrent protection module 5 further, and overcurrent protection module 5, mainly through monitoring the armature supply of brush direct current motor 8 or DC brushless motor 9, realizes the protection to electric-motor drive unit 3 and motor.The bus current signal coming from driver module 6 exports microcontroller 2 to by the collection of overcurrent protection module 5.When bus current signal exceedes set point, suitably reduce the duty ratio of PWM ripple by microcontroller 2 or turn off driver module 6, or being disconnected the external output of electric-motor drive unit 3 by safety relay 7.As shown in Figure 8; overcurrent protection module 5 is primarily of the sampling resistor of certain precision and discharge circuit composition; it carries overcurrent protection function; mainly realize the sampling of the armature supply (drive circuit bus current) of brush direct current motor 8 or DC brushless motor 9; and calculated by related algorithm by microcontroller 2; realize the monitoring to armature supply, form current closed-loop.When electric current exceedes certain value, be protection IPM chip and motor, microcontroller 2 is by the not enable IPM chip of control signal or safety relay 7 is disconnected.
A specific embodiment for screen door electric machine control system, comprising: motor control assembly, and the brush direct current motor 8 be connected with motor control assembly as above or DC brushless motor 9, motor control assembly is arranged in door control unit 1.
Electric machine control system also comprises central interface panel 10, when electric machine control system is applied to brush direct current motor 8 or DC brushless motor 9 controls, corresponding control program enters microcontroller 2 by simulator burning in advance, or being sent to microcontroller 2 by CAN by central interface panel 10 carries out firmware renewal online, the online relevant parameter to motor control assembly control brush direct current motor 8 or DC brushless motor 9 is modified simultaneously.The switching frequency of the switching tube of three-phase bridge circuit is arranged by the PWM wave parameter in change control program.
As shown in Figure 5, microcontroller 2 comprises control module 11, communication module 12, initialization module 13 and firmware update module 14 further.Control module 11 is connected with central interface panel 10 by communication module 12, and initialization module 13 is connected with control module 11 respectively with firmware update module 14.Initialization module 13 realizes the initialization of control program, and central interface panel 10 carries out firmware renewal rewards theory by communication module 12, control module 11 pairs of firmware update module 14 successively.
A kind of screen door motor control method, screen door electric machine control system comprises motor control assembly, and brush direct current motor 8 or DC brushless motor 9, motor control assembly comprises microcontroller 2 and electric-motor drive unit 3 further, electric-motor drive unit 3 comprises driver module 6 further, and screen door motor control method comprises the following steps:
S100: microcontroller 2 controls brush direct current motor 8 or DC brushless motor 9 by the driver module 6 of electric-motor drive unit 3; Microcontroller 2 exports PWM ripple to driver module 6, brush direct current motor 8 or DC brushless motor 9 is driven by driver module 6, complete and comprise rotating forward, reversion, acceleration, deceleration, action at the uniform velocity, realize the compatibility to brush direct current motor 8 and DC brushless motor 9.
As one of the present invention preferably specific embodiment, motor control assembly also comprises speed input module 4 and overcurrent protection module 5, and electric-motor drive unit 3 also comprises safety relay 7, and screen door motor control method comprises the following steps:
S101: the tach signal Negotiation speed input module 4 coming from brush direct current motor 8 or DC brushless motor 9 exports microcontroller 2 to, microcontroller 2 calculates the rotating speed obtaining current brush direct current motor 8 or DC brushless motor 9 by tach signal, control with the rotating speed realizing brush direct current motor 8 or DC brushless motor 9;
S102: the bus current signal coming from driver module 6 is gathered by overcurrent protection module 5; and export microcontroller 2 to; when bus current signal exceedes set point; suitably reduce the duty ratio of PWM ripple by microcontroller 2 or turn off control driver module 6, or being disconnected the external output of electric-motor drive unit 3 by safety relay 7.
As one of the present invention preferably specific embodiment, step S102 also comprises further:
Brush direct current motor 8 or DC brushless motor 9 drive shield door action, when the shield door adopting manual mode push-and-pull to be connected with motor control assembly, connection between driver module 6 and brush direct current motor 8 or DC brushless motor 9 disconnects, the resistance of motion of shield door reduces, and is convenient to manually be opened or closed by shield door.
Driver module 6 comprises three-phase bridge circuit structure further, and step S100 comprises further:
When motor control assembly drives brush direct current motor 8, H-bridge circuit is formed by any two-phase in three-phase bridge circuit in driver module 6, the two phase PWM ripple that microcontroller 2 exports, control the break-make of four switching tubes in H-bridge circuit in driver module 6, realize brush direct current motor 8 and perform an action according to the rate curve of setting;
When motor control assembly drives DC brushless motor 9, microcontroller 2 exports three-phase PWM ripple, controls the break-make of six switching tubes in three-phase bridge circuit in driver module 6, realizes DC brushless motor 9 and performs an action according to the rate curve of setting.
Screen door motor control method is also further comprising the steps:
Electric machine control system also comprises central interface panel 10, when electric machine control system is applied to brush direct current motor 8 or DC brushless motor 9 controls, corresponding control program (Bootloader program) enters microcontroller 2 by simulator burning in advance, or being sent to microcontroller 2 by CAN by central interface panel 10 carries out firmware renewal online, the online relevant parameter to motor control assembly control brush direct current motor 8 or DC brushless motor 9 is modified simultaneously, the switching frequency of three-phase bridge circuit breaker in middle pipe is arranged by the PWM wave parameter in change control program.When DCU is for controlling to drive brush direct current motor or DC brushless motor, in advance by simulator burning or to be sent to by central interface panel online by CAN in the DCU or some DCU that specify, and can modify to the relevant parameter of DCU control motor online.In the specific embodiment of the invention, the compatibility being realized brush direct current motor and DC brushless motor by the consistency of screen door motor control assembly hardware circuit is controlled, and distinguishes the control of brush direct current motor or DC brushless motor by corresponding control program.
The technical scheme of the screen door motor control assembly, system and the method thereof that adopt the specific embodiment of the invention to describe, can reach following technique effect:
(1) technical scheme that the specific embodiment of the invention describes overcomes prior art screen door motor control method and can only solely control to drive brush direct current motor or DC brushless motor, the technical problem that applicability is poor;
(2) technical scheme that the specific embodiment of the invention describes has again the subway line of DC brushless motor for existing brush direct current motor, overcome the defect that there is design iterations, extend the R&D cycle, reduce the difficulty of the management of product and maintaining simultaneously, improve the utilance of spare part;
(3) technical scheme that the specific embodiment of the invention describes drives brush direct current motor or DC brushless motor by PWM ripple, can complete comprise that motor rotates forward, reversion, accelerate, slow down, action at the uniform velocity, can by suitably improving PWM wave frequency, reduce motor-drive circuit to the demand of inductance, realize the unification of brush direct current motor and Brushless DC Motor Drive Circuit;
(4) technical scheme that the specific embodiment of the invention describes can according to the corresponding control program of different control objects burning in advance, and the application program door control unit that utilizes CAN to be burnt to specify by centre panel or batch are burnt in some door control unit, improve the applicability of door control unit, effectively reduce the quantity of door control unit as spare part, and improve the maintainability of product.
Professional can also recognize further, in conjunction with unit and the step of each example of the disclosed embodiments description in the present invention, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeability of hardware and software is clearly described, generally describe composition and the step of each example in the above description according to function.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
The software module that the method described in conjunction with embodiment disclosed herein or algorithm can directly use hardware, processor to perform, or the combination of the two is implemented.Software module can be placed in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, various programmable logic device, register, hard disk, moveable magnetic disc, CD-ROM or any other forms of storage medium well known in the art.The processor of executive software module can be central processing unit (CPU), flush bonding processor, microcontroller (MCU), digital signal processor (DSP), single-chip microcomputer, SOC (system on a chip) (SOC), programmable logic device, and the other forms of arbitrarily device with control, processing capacity well known in the art.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention.Any those of ordinary skill in the art, when not departing from Spirit Essence of the present invention and technical scheme, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent replacement, equivalence change and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (12)
1. a screen door motor control assembly, is characterized in that, comprising: microcontroller (2), electric-motor drive unit (3), and described electric-motor drive unit (3) comprises driver module (6) further; Described driver module (6) is selectively connected with the brush direct current motor (8) of outside or DC brushless motor (9), described microcontroller (2) is connected with the driver module (6) of described electric-motor drive unit (3), for controlling outside brush direct current motor (8) or DC brushless motor (9); Described microcontroller (2) exports PWM ripple to described driver module (6), brush direct current motor (8) or the DC brushless motor (9) of described outside is driven by described driver module (6), complete and comprise rotating forward, reversion, acceleration, deceleration, action at the uniform velocity, realize the compatibility to described brush direct current motor (8) and DC brushless motor (9).
2. a kind of screen door motor control assembly according to claim 1, is characterized in that: described driver module (6) adopts three-phase bridge circuit structure further.
3. a kind of screen door motor control assembly according to claim 2, it is characterized in that: when described motor control assembly drives described brush direct current motor (8), H-bridge circuit is formed by any two-phase in described driver module (6) interior three-phase bridge circuit, the two phase PWM ripple that described microcontroller (2) exports, control the break-make of four switching tubes in the H-bridge circuit of described driver module (6), realize described brush direct current motor (8) and perform an action according to the rate curve of setting.
4. a kind of screen door motor control assembly according to claim 2, it is characterized in that: when described motor control assembly drives described DC brushless motor (9), described microcontroller (2) exports three-phase PWM ripple, control the break-make of six switching tubes in described driver module (6) interior three-phase bridge circuit, realize described DC brushless motor (9) and perform an action according to the rate curve of setting.
5. a kind of screen door motor control assembly according to claim arbitrary in Claims 1-4, it is characterized in that: described motor control assembly comprises speed input module (4) further, the tach signal coming from outside brush direct current motor (8) or DC brushless motor (9) exports described microcontroller (2) to by described speed input module (4), and described microcontroller (2) obtains the rotating speed of current described brush direct current motor (8) or DC brushless motor (9) by calculating.
6. a kind of screen door motor control assembly according to claim 5, it is characterized in that: described electric-motor drive unit (3) comprises safety relay (7) further, described driver module (6) is connected with outside brush direct current motor (8) or DC brushless motor (9) by described safety relay (7), drives shield door action by described brush direct current motor (8) or DC brushless motor (9); When adopting shield door described in manual mode push-and-pull, connection between described driver module (6) and described brush direct current motor (8) or DC brushless motor (9) disconnects, the resistance of motion of described shield door reduces, and is convenient to manually be opened or closed by described shield door.
7. a kind of screen door motor control assembly according to claim 6, it is characterized in that: described motor control assembly comprises overcurrent protection module (5) further, the bus current signal coming from described driver module (6) exports described microcontroller (2) to by the collection of described overcurrent protection module (5), when described bus current signal exceedes set point, by described microcontroller (2) by suitably reducing the duty ratio of described PWM ripple or turning off described driver module (6), or the external output of described electric-motor drive unit (3) is disconnected by described safety relay (7).
8. a screen door electric machine control system, it is characterized in that, comprise: the motor control assembly as described in claim 1-7, and the brush direct current motor (8) to be connected with described motor control assembly or DC brushless motor (9), described motor control assembly is arranged in door control unit (1).
9. a screen door motor control method, it is characterized in that, electric machine control system comprises motor control assembly, and brush direct current motor (8) or DC brushless motor (9), described motor control assembly comprises microcontroller (2) and electric-motor drive unit (3) further, described electric-motor drive unit (3) comprises driver module (6) further, and described motor control method comprises the following steps:
S100: described microcontroller (2) controls described brush direct current motor (8) or DC brushless motor (9) by the driver module (6) of described electric-motor drive unit (3); Described microcontroller (2) exports PWM ripple to described driver module (6), described brush direct current motor (8) or DC brushless motor (9) is driven by described driver module (6), complete and comprise rotating forward, reversion, acceleration, deceleration, action at the uniform velocity, realize the compatibility to described brush direct current motor (8) and DC brushless motor (9).
10. a kind of screen door motor control method according to claim 9; it is characterized in that; described motor control assembly also comprises speed input module (4) and overcurrent protection module (5); described electric-motor drive unit (3) also comprises safety relay (7), and described motor control method comprises the following steps:
S101: the tach signal Negotiation speed input module (4) coming from described brush direct current motor (8) or DC brushless motor (9) exports described microcontroller (2) to, described microcontroller (2) calculates the rotating speed obtaining current brush direct current motor (8) or DC brushless motor (9) by described tach signal, control with the rotating speed realizing described brush direct current motor (8) or DC brushless motor (9);
S102: the bus current signal coming from described driver module (6) is gathered by overcurrent protection module (5); and export described microcontroller (2) to; when described bus current signal exceedes set point; suitably reduce the duty ratio of described PWM ripple by described microcontroller (2) or turn off the described driver module of control (6), or being disconnected the external output of described electric-motor drive unit (3) by described safety relay (7).
11. a kind of screen door motor control methods according to claim 10, it is characterized in that, described step S102 also comprises further:
Described brush direct current motor (8) or DC brushless motor (9) drive shield door action, when adopting shield door described in manual mode push-and-pull, connection between described driver module (6) and brush direct current motor (8) or DC brushless motor (9) disconnects, the resistance of motion of described shield door reduces, and is convenient to manually be opened or closed by described shield door.
12. a kind of screen door motor control methods according to claim 10 or 11, it is characterized in that, described step S100 comprises further:
When described motor control assembly drives described brush direct current motor (8), H-bridge circuit is formed by any two-phase in described driver module (6) interior three-phase bridge circuit, the two phase PWM ripple that described microcontroller (2) exports, control the break-make of four switching tubes in the H-bridge circuit of described driver module (6), realize described brush direct current motor (8) and perform an action according to the rate curve of setting;
When described motor control assembly drives described DC brushless motor (9), described microcontroller (2) exports three-phase PWM ripple, control the break-make of six switching tubes in described driver module (6) interior three-phase bridge circuit, realize described DC brushless motor (9) and perform an action according to the rate curve of setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410220726.6A CN105099336A (en) | 2014-05-23 | 2014-05-23 | Shield door system motor control device, system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410220726.6A CN105099336A (en) | 2014-05-23 | 2014-05-23 | Shield door system motor control device, system and method |
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| CN105099336A true CN105099336A (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410220726.6A Pending CN105099336A (en) | 2014-05-23 | 2014-05-23 | Shield door system motor control device, system and method |
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| CN110601637A (en) * | 2019-09-30 | 2019-12-20 | 重庆虎溪电机工业有限责任公司 | Disc type motor driving power generation controller |
| CN111769765A (en) * | 2019-12-06 | 2020-10-13 | 哈尔滨理工大学 | Intelligent universal direct current motor controller based on DSP |
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