CN108702119A - A kind of motor control method and electric system - Google Patents
A kind of motor control method and electric system Download PDFInfo
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- CN108702119A CN108702119A CN201780008982.0A CN201780008982A CN108702119A CN 108702119 A CN108702119 A CN 108702119A CN 201780008982 A CN201780008982 A CN 201780008982A CN 108702119 A CN108702119 A CN 108702119A
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- motor
- magnetic field
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- field parameter
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
- H02P23/24—Controlling the direction, e.g. clockwise or counterclockwise
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
A kind of motor control method, includes the following steps:When relative to magnetic detection device change in location occurs for magnetic part, the magnetic field parameter that magnetic detection device induced magnetism part magnetic field generates is obtained;Judge the magnetic field parameter, when magnetic field parameter is more than and starts threshold value, start motor, when magnetic field parameter is less than the startup threshold value, stops powering to motor;Wherein, when magnetic field parameter is more than the startup threshold value and starts motor, continue the magnetic field parameter variation for obtaining the magnetic detection device induced magnetism part, speed governing is carried out to the motor according to magnetic field parameter variation.
Description
Technical field
This application involves electrical equipment fields, and in particular to a kind of motor control method and electric system.
Background technology
It is universal with more and more intelligent appliances in life and electric system, it is suitable for the electricity of different control environment
Machine system application scenario is more and more.Conventional mechanical switch is generally arranged in existing electric system.
The motor that power is provided for electric system includes brush motor and brushless motor, since brushless motor is without using machinery
Brushgear, opposite brush motor, with high efficiency, low noise, the long-life, without electric spark, the advantages such as relatively low cost,
It is widely adopted on electric system, especially in the environment of extremely harsh operation, brush motor is by brushless motor institute
Substitution.
In order to meet industrial production demand, in specific application scenario, people are high to the power requirement of electric system, brushless
Motor high current drives and works in more rugged environment, and when work, high current is to other electric component bands on electric system
Carry out the electromagnetic interference of bigger and brings the calorific value of bigger, harsh environments to power device and electric system power switch
It is required that electric system is accordingly also higher and higher to the switch antidetonation that uses, shock resistance requirement.
Referring to FIG. 1, the switch governor device of existing electric system generally uses the mechanicalness of shrapnel and fixed carbon resister to connect
The mode of touching, power switch uses mechanical contact-type, and external power diode is used for power supply at the pin of electric power connection line
When cut-out, continuous current circuit is provided to motor.High-power brushless motor tool electric current is big, since power switch Ka is the tactile type of point,
When connection, there are contact resistances, when high current flows through, a large amount of heat can be caused to generate, contact can be led to by working long hours
It burns, phenomena such as plastic cement of switch melts, and the pad scolding tin of conducting wire melts, Simultaneous Switching contact, it can be with bearing high current
Size ability and cost improve.Also, motor M1 is that inductive load needs to provide it with continuous current circuit when motor stops, existing
There is electric system switch using a power diode D1 is welded at switch Ka, after Ka is disconnected, is provided to brushless motor continuous
Flow back to road.But power diode power more large volume is bigger, and the space that electric system switch can accommodate fly-wheel diode is non-
It is often limited so that powerful diode can not be installed and be welded in the switch.Meanwhile brushless motor high current continuous current circuit work(
The fever of rate diode is serious, works long hours and easilys lead to by thermal breakdown and burn, in addition, heavy-duty diode also carries significantly
The high cost of product.
The speed regulation device of existing brushless motor is also the mechanical contact mode using shrapnel and fixed carbon resister, passes through change
The relative contact location of shrapnel and fixed carbon resister changes its resistance value, to realizing the speed-regulating function of electric system.The bullet
Friction between piece and fixed carbon resister can generate frictional dissipation with increasing for access times, usage time is grown, and will produce
Abrasion and plastic deformation etc., this will lead to the poor contact of shrapnel and fixed carbon resister, influence the service life of switch;Meanwhile when
Electric system use is under high vibration working environment, since shrapnel is mechanically connect with fixed carbon resister by the elastic force of itself
It touches, so the vibrations of tool itself can drive the shrapnel in switch to shake together, when shaking force is more than shrapnel own resilient, bullet
Sector-meeting remained that the state of contact became contactless state with fixed carbon resister from originally, such that electric system is operated in
Unstable state.Also, speed regulation device is mounted on switch internal, when high current from switch internal by when, can in switch internal
Prodigious electromagnetic interference is generated, interference signal is easy to be crosstalked into speed regulation device, and interference signal, which is added to, exports speed electric
On signal, so that it is generated distortion, when situation is serious, electric system is caused to can not work normally.
In addition, existing electric system has the phenomenon that non-artificial factor starts in use, non-artificial factor occurs and opens
When dynamic, abrasion not only is generated to electric system component itself and is destroyed, while there is also potential personal safety hidden danger.
Therefore, the electric system of the prior art needs to improve.
Apply for content
A kind of motor control method of the application offer and electric system, the electric system eliminate the switch of physical contact,
The operation of magnetic part is completed to operate the start stop operation of motor and speed governing according to user by controller, and can be motor simultaneously
Energy release provides efficient continuous current circuit.
In order to solve the above technical problems, the application provides following technical scheme.
In a first aspect, the embodiment of the present application provides a kind of motor control method, include the following steps:
When relative to magnetic detection device change in location occurs for magnetic part, magnetic detection device induced magnetism part magnetic field is obtained
The magnetic field parameter of generation;
Judge the magnetic field parameter, when magnetic field parameter is more than the startup threshold value, starts the motor, being less than in magnetic field parameter should
When starting threshold value, stop powering to motor;
Wherein, after magnetic field parameter is more than startup threshold value startup motor, continue to obtain magnetic detection device induction magnetic
Property part magnetic field parameter variation, according to the magnetic field parameter variation to the motor carry out speed governing.
When it is implemented, the magnetic field parameter is induced potential value or induced current value, the startup threshold value of the motor is pair
The voltage threshold or current threshold answered.
Second aspect the embodiment of the present application also provides a kind of electric system, including motor, controller, connects the control
The magnetic detection device of device and the magnetic part of Untouched control motor, the motor connect power supply by controller, should
Controller includes receiving module, judgment module and speed adjusting module,
When relative to the magnetic detection device change in location occurs for the magnetic part, which is used for induced magnetism
The magnetic field of part generates magnetic field parameter, and the receiving module is for receiving the magnetic field parameter;
The judgment module is provided with the startup threshold value corresponding to the motor of magnetic field parameter;The judgment module is used to join in magnetic field
When number is more than the startup threshold value, start the motor, when magnetic field parameter is less than the startup threshold value, stops powering to motor;
When magnetic field parameter is more than the startup threshold value, which is used to carry out the motor according to magnetic field parameter variation
Speed governing.
In embodiment, which is induced potential value or induced current value, and the startup threshold value of the motor is pair
The voltage threshold or current threshold answered.
Preferably, further include power drive control module, the power driver module and the controller and the motor
Connection, for providing driving power according to the control signal of the controller for the motor.
The magnetic part is arranged in the detectable range of the magnetic detection device, and thoughts are arranged in the speed adjusting module of the controller
The associated data of raw voltage value and motor speed, when the magnetic part is close to the magnetic detection device, magnetic detection device output
Induced potential value increase, which is used to control the speed of the motor and improve therewith;The magnetic part is examined far from the magnetism
When surveying device, the induced potential value of magnetic detection device output reduces, the speed adjusting module be used to control the speed of the motor with
Reduction.
In another embodiment, the controller collection is at the power drive control module.
The controller further includes being switched for changing the motor positive and inverse of direction of motor rotation.
The magnetic part is arranged on the push rod manipulated by user, on the push rod be arranged touch recognition device for identification whether
It is manual operation, which is connect with the controller and data communication.
The touch recognition device includes the capacitance touch pole plate for connecting the capacitance of controller and being arranged on the push rod.
Preferably, which is linear Hall magnetic sensor.
The advantageous effect of the application is, control method provided by the embodiments of the present application and electric system, the electric system
By switch separation to controller, motor is directly connect with power supply by controller, by controller according to user to magnetic part
Operation complete to operate the start stop operation of motor and speed governing, and can be motor power release provide efficient afterflow time simultaneously
Road.Electric system switch is switched using software power supply and the scheme of speed regulation device, and switchs and detached with speed regulation device,
The switch of power supply is not in the physical switch but is judged by controller and is controlled, and big current loop is also opened without physics
It closes, the motor of the electric system is directly connect with power supply, and in embodiment, the Qi Yuting of brushless motor is filled using speed governing
The magnetic signal set, is acquired by controller, the startup threshold values of electric motor starting is set in this controller, when the numerical value of magnetic signal
It is more than or reaches the startup threshold values of electric motor starting, by controller driving power drive control module, motor is made to operate.When magnetism is believed
Number numerical value be less than electric motor starting startup threshold values when, controller driving power drive control module leaves the motor off operating.
Therefore, the electric system switch solution of technical scheme is simple for structure, and non contact type control mode makes electricity
Machine service life extends, and the switch of electric system is at low cost and safe and reliable, and realizes intelligence.
Description of the drawings
One or more embodiments are illustrated by the picture in corresponding attached drawing, these exemplary theorys
The bright restriction not constituted to embodiment, the element with same reference numbers label is expressed as similar element in attached drawing, removes
Non- to have special statement, composition does not limit the figure in attached drawing.
Fig. 1 is the switch and speed regulating structure schematic diagram of existing electric system;
Fig. 2 is a kind of embodiment circuit diagram of electric system provided by the embodiments of the present application;
Fig. 3 is the module map of controller in electric system provided by the embodiments of the present application;
Fig. 4 is another embodiment circuit diagram of electric system provided by the embodiments of the present application;And
Fig. 5 is the flow chart of motor control method provided by the embodiments of the present application.
Specific implementation mode
It is with reference to the accompanying drawings and embodiments, right in order to make the object, technical solution and advantage of the application be more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the application, not
For limiting the application.
In order to realize that the non contact type control mode of electric system makes motor service life extend, succinct switch knot is provided
Structure scheme so that switch it is at low cost and safe and reliable and realize it is intelligent, the invention relates to a kind of electric system and
This applies the motor control method on the electric system.
The motor that the application electric system is related to can be brush motor or brushless motor.Motor in following embodiment is equal
Using brushless motor.
Referring to FIG. 2, show the embodiment of the application electric system, the electric system include motor 10, controller 20,
Connect the magnetic detection device of the controller 20 and the magnetic part A1 of Untouched control motor 10.The motor 10 passes through control
Device 20 connects power supply 40.
Please further refer to Fig. 3, in order to realize the startup and speed governing to motor, which further includes receiving module
22, judgment module 24 and speed adjusting module 26.
When by user's operation relative to the magnetic detection device S1 change in location occurs for magnetic part A1, the magnetic detection
The magnetic field of device induced magnetism part A1 generates the magnetic field parameter receiving module 22 for receiving the magnetic field parameter.The controller 20
Judgment module 24 is equipped with the startup threshold value of the motor corresponding to magnetic field parameter.The controller 20 is more than the actuation threshold in magnetic field parameter
When value, which starts the motor 10 for controlling, when magnetic field parameter is less than the startup threshold value, the judgment module 24
Stop powering to motor 20 for controlling;Wherein, when magnetic field parameter is more than the startup threshold value and starts motor, magnetic detection dress
The magnetic field parameter variation that S1 continues induced magnetism part A1 is set, the speed adjusting module 26 of the controller 20 is according to magnetic field parameter variation pair
The motor 10 carries out speed governing.
The electric system further includes power drive control module 30.The power drive control module 30 is for controlling motor 10
Rotative power.The power drive control module 30 is additionally coupled to the controller 20, for receiving the controller 20 according to magnetic field
The control signal that the power output of Parameters variation and determination requires.The power drive control module 30 and power supply 40 and control
Device 20 processed connects, which realizes the start and stop and speed governing to motor 10 under the control of the controller 20.
The controller 20 of the motor connects magnetic detection device S1, capacitance C1 and motor positive and inverse switch K1.The magnetic
Property part A1 and magnetic detection device S1 compositions motor start stop apparatus be also motor speed control device simultaneously.The electricity of the connection controller 20
Machine forward-reverse switch K1 is for changing direction of motor rotation.
Magnetic part A1 is arranged on the push rod 60 manipulated by user.Touch recognition device is set on the push rod 60 for knowing
Not to be not whether manual operation and prevent motor accidental activation, which is connect with controller 20 and data communication.
The touch recognition device includes capacitance C1 and capacitance touch pole plate B1.In the touch recognition device, capacitance C1
Controller 20 is connected, the end on the push rod 60 is arranged in capacitance touch pole plate B1.
In the embodiment of the present application, magnetic part A1 can be magnet steel, or the material of the magnetism such as permanent magnetic iron.The magnetic
Property detection device S1 can be linear Hall magnetic sensor or other galvanomagnetic effect sensors, such as magnetoresistance effect sensor
Etc..
In the application, the magnetic field parameter that magnetic detection device S1 is generated depending on the different sensors of use, such as
Using linear Hall magnetic sensor, magnetic field parameter is induced potential value;Or use magnetoresistance effect sensor, the magnetic field
Parameter is induced current value.
It is described below so that magnetic detection device S1 uses linear Hall magnetic sensor as an example, is to induct based on magnetic field parameter
Voltage is illustrated.
The judgment module 24 of the controller 20 is provided with the startup threshold value that the motor corresponds to magnetic field parameter.Wherein, with
When family operates magnetic part A1 relative to magnetic detection device S1 generation change in location, magnetic detection device S1 induced magnetisms
The magnetic field of part A1 generates magnetic field parameter;The judgment module 24 of the controller 20 starts when magnetic field parameter is more than the startup threshold value
The motor 10, when magnetic field parameter is less than the startup threshold value, the judgment module 24 of the controller 20 stops powering to motor 10.
When magnetic field parameter is more than the startup threshold value, magnetic detection device S1 continues to obtain the magnetic field parameter of magnetic part A1, the controller
The magnetic field parameter variation that 20 speed adjusting module 26 is fed back according to magnetic detection device S1 carries out speed governing to the motor 10.The motor
10 startup threshold value is the voltage threshold of corresponding magnetic field parameter.
The pass of the induced potential value or induced current value and motor speed is preserved in the speed adjusting module 26 of the controller 20
Join data.The associated data of the motor speed corresponds to corresponding output to the output power of motor.The controller 20 is also connected with power
Drive control module 30, the power drive control module 30 regulate and control the power supply according to the associated data that the controller 20 determines
40 export to the power of motor 10.
In the specific implementation of magnetic part A1 and magnetic detection device S1, magnetic part A1 settings are filled in the magnetic detection
It sets in the detectable range of S1, when magnetic part A1 is close to magnetic detection device S1, magnetic detection device S1 induced magnetisms
The magnetic field of part A1 generates magnetic field parameter, such as induced potential;Closer to magnetic part A1, the sense of magnetic detection device S1 outputs
Raw voltage value is bigger, and the associated data for the motor speed which determines is also bigger, the corresponding motor
10 speed improves therewith;When magnetic part A1 is far from magnetic detection device S1, the magnetic field of magnetic detection device S1 outputs
Parameter is smaller, that is, the induced potential value reduces, the associated data for the motor speed which determines
Smaller, the speed of corresponding motor 10 decreases.
The touch recognition device includes capacitance C1 and capacitance touch pole plate B1.Capacitance C1 connections controller 20, the electricity
Hold touch pole plate B1 and the end on the push rod 60 is set.When user holds 60 manual operation of push rod, the capacitance touch pole plate
B1 is also contacted, and due to human body electric field between the capacitance touch pole plate B1 and user's palm, is formed coupled capacitor, is generated induced electricity
Stream, therefore the current signal that capacitance C1 can be exported, the controller 20 receive current signal and are then considered that push rod 60 is pushed to open
Motor or speed governing;The controller 20 does not receive current signal and then belongs to when still magnetic detection device S1 passes magnetic field parameter back
Existing non-artificial maloperation, the controller 20 do not control motor operation further according to magnetic field parameter.
Referring to FIG. 4, it is shown another embodiment of the application electric system, and in this embodiment, the controller 120 collection
At power drive control module.
The electric system of the second embodiment connects motor 100 and power supply 140 also by controller 120.The motor
System includes connecting the magnetic detection device of the controller 120 and being used for Untouched control motor 100 by what user manipulated
Magnetic part A1.The power drive that the controller 120 is integrated with for controlling output to the rotative power of motor 100 controls mould
Block is individually completed start and stop and speed governing to motor by the controller 120.Likewise, in order to realize the startup and speed governing to motor,
The controller 120 also includes receiving module, judgment module and speed adjusting module.
The setting of electric machine controller 120 of the second embodiment and structure are identical with the first embodiment.The electric machine controller 120
Connect magnetic detection device S1, capacitance C1 and motor positive and inverse switch K1.Magnetic part A1 and magnetic detection device S1 groups
It is also motor speed control device simultaneously at motor start stop apparatus.The motor positive and inverse switch K1 of the connection controller 120 for changing
Direction of motor rotation.
Magnetic part A1 is arranged on the push rod 160 manipulated by user.Touch recognition device is arranged on the push rod 160 to be used for
Identify whether to be manual operation and prevent motor accidental activation.
The touch recognition device includes capacitance C1 and capacitance touch pole plate B1.In the touch recognition device, capacitance C1
Controller 120 is connected, the end on the push rod 160 is arranged in capacitance touch pole plate B1.
The power supply that electric system switchs is switched and is detached with speed regulation device by the embodiment of the present application, compared with the existing technology
Eliminate the power supply switch of electric system switch and additional power diode.And 50 inside of control device has non-connect
The speed regulation device of the linear Hall magnetic detection of touch, the control device 50 further include that touch recognition device and motor positive and inverse are dynamic
The switching device of operation.The application electric system in such a way that controller is combined by control device using controlling opening for motor
Stop and speed governing.
The control device (50,150) includes the push rod (60,160) manipulated for user, user to the operation of the push rod by
Touch recognition device induction identification, the one end of magnetic part A1 settings in push rod (60,160).
Electric system switch operation principle and application process in the present embodiment is specific as follows:
Magnetic part A1 Position Designs on the push rod (60,160) are magnetic in magnetic detection device S1, such as linear Hall
Sensor, within the scope of capable of detecting.When user enforces push rod (60,160), the magnetic part A1 on push rod (60,160)
Gradually close with Hall sensor, since magnetic induction intensity changes, linear Hall magnetic sensor is with magnetic induction intensity
Change and export varying voltage signal, magnetic induction intensity variation is with Hall sensor with magnetic part A1 apart from close and uniform
Variation, the voltage signal that hall device exports therewith also follow even variation, almost close to linear.So the linear voltage
It is input to controller (20,120), controller (20,120) sets motor (10,100) according to collected voltage magnetic field parameter and transports
Capable speed starts and stops.The startup threshold values that motor is set in the judgment module of controller (20,120), work as hall sensing
When the data value of the voltage magnetic field parameter of device output is more than the startup threshold values of motor, controller (20,120) drives with regard to driving power
Control module allows motor (10,100) to get into smooth.After motor (10,100) startup, as controller (20,120) acquire
The data value of the voltage signal exported to Hall sensor increases, and speed adjusting module increases according to the data value of the voltage signal of the output
It is improved therewith to control the speed of motor greatly;Conversely, the speed of motor is lowered therewith;When controller (20,120) collects suddenly
When the data value of the voltage magnetic field parameter of your sensor output is less than the startup threshold values of motor, controller (20,120) just turns off work(
Rate drive control module, allows motor to shut down.
Meanwhile user is held push rod (60,160) because of contact insulation capacitance touch pole by the capacitance C1 of the touch recognition device
The current signal that plate B1 is generated is also fed back to controller (20,120).When user presses lower push-rod (60,160) with hand, the capacitance
It touches pole plate B1 also to be contacted, user and touch-surface form coupled capacitor, utilize the generation induced current of human body, capacitance C1
It detects the induced current generated and is sent to controller (20,120) acquisition, to which controller (20,120) may determine that push rod
Whether the operation on (60,160) is manual operation, that is, judges it is artificial startup electric system or maloperation;Conversely, working as it
When his object presses lower push-rod (60,160), the capacitance that not will produce induced current capacitance C1 does not change, controller (20,
120) judge that the operation starts to be invalid accordingly.
In one embodiment, which includes connecting motor 10 and for controlling output to the rotation work(of motor
The power drive control module 30 of rate, the power drive control module 30 be additionally coupled to the controller 20 for receive according to magnetic field
The power output requirement of Parameters variation and determination.The power drive control module 30 and power supply 40 and controller 20 connect
It connects, which realizes the start and stop and speed governing to motor 10 under the control of the controller 20.
The controller 20 connects magnetic detection device S1, capacitance C1 and motor positive and inverse switch K1.Magnetic part A1
It is also motor speed control device simultaneously with magnetic detection device S1 compositions motor start stop apparatus.The motor of the connection controller 20 is positive and negative
It turns on and closes K1 for changing direction of motor rotation.
Magnetic part A1 is arranged on the push rod 60 manipulated by user.Touch recognition device is set on the push rod 60 for knowing
Not to be not whether manual operation and prevents motor accidental activation.
The touch recognition device includes capacitance C1 and capacitance touch pole plate B1.In the touch recognition device, capacitance C1
Controller 20 is connected, the end on the push rod 60 is arranged in capacitance touch pole plate B1.
In the embodiment of the present application, magnetic part A1 can be magnet steel, or the material of the magnetism such as permanent magnetic iron.The magnetic
Property detection device S1 can be linear Hall magnetic sensor or other galvanomagnetic effect sensors, such as magnetoresistance effect sensor
Etc..
Referring to FIG. 5, the embodiment of the present application further relates to a kind of motor control method, which is from controller
Processing procedure be illustrated.The motor control method includes the following steps:
Step 102:Relative to the magnetic detection device change in location occurs for magnetic part, and user's operation magnetic part A1 is opposite
Change in location occurs in magnetic detection device S1, obtains the magnetic field parameter that magnetic detection device induced magnetism part magnetic field generates;
Specific as follows, the magnetic field of the magnetic detection device induced magnetism part generates magnetic field parameter, magnetic detection device S1 induced magnetisms
The magnetic field of part A1 generates magnetic field parameter;
Step 104:Judge the magnetic field parameter;
Step 106:When magnetic field parameter is more than the startup threshold value, which starts the motor;
Step 108:When magnetic field parameter is less than the startup threshold value, which stops powering to motor;
When the magnetic part continues that change in location occurs relative to the magnetic detection device, speed adjusting module is started to work, and is carried out
Following steps;
Step 110:The speed adjusting module of controller (20,120) continues to obtain the magnetic of the magnetic detection device induced magnetism part
Field parameters change;
Step 112:The controller (20,120) changes according to the magnetic field parameter carries out speed governing to the motor (10,100).
Wherein, in the application, the magnetic field parameter that magnetic detection device S1 is generated depending on the different sensors of use,
For example linear Hall magnetic sensor is used, magnetic field parameter is induced potential value;Or magnetoresistance effect sensor is used, it should
Magnetic field parameter is induced current value.
Alternatively, the controller can integrate the power drive control module.
Likewise, the controller (20,120) connects magnetic detection device S1, capacitance C1 and motor positive and inverse switch
K1.Magnetic part A1 and magnetic detection device S1 compositions motor start stop apparatus are also motor speed control device simultaneously.The connection controls
The motor positive and inverse switch K1 of device (20,120) is for changing direction of motor rotation.
Magnetic part A1 is arranged on the push rod (60,160) manipulated by user.Setting, which touches, on the push rod (60,160) knows
Whether other device is for identification manual operation and prevents motor accidental activation.
The touch recognition device includes capacitance C1 and capacitance touch pole plate B1.In the touch recognition device, capacitance C1
Connect controller (20,120), the end that capacitance touch pole plate B1 is arranged on the push rod (60,160).
The electric system switch using software power supply switch and contactless speed regulation device scheme, and switch and
Speed regulation device detaches, and the switch of power supply not in the physical switch but is judged by controller and controlled, and big current loop
Also without physical switch, the motor of the electric system is directly connect with power supply, in embodiment, brushless motor open with
Stop, is completed, acquired by controller, in the trigger valve of the middle setting electric motor starting of this controller by the magnetic signal of speed regulation device
Value drives work(when the numerical value of the magnetic signal of speed regulation device output is more than or reaches the startup threshold values of electric motor starting by controller
Rate drive control module exports corresponding rotative power, and motor is made to operate.When speed regulation device exports the numerical value of induced magnetism signal
Less than electric motor starting startup threshold values when, controller makes power drive control module no longer output power, leaves the motor off operating.
Speed regulation device is detected using the Hall magnetic between magnetic part A1 and sensor, and linear Hall magnetic sensor is consolidated
It being scheduled on inside electric system, magnetic part A1 is mounted on the push rod (60,160) moved by user's operation, the push rod (60,
160) setting is in the magnetic detection device, Hall sensor, detectable range in, when user enforces push rod (60,160)
When, the magnetic part A1 on push rod (60,160) 0 is relative to sensor away from or closer to the corresponding magnetic induction of sensor is strong therewith
Degree changes therewith, and linear Hall magnetic sensor exports magnetic field parameter as magnetic induction intensity changes, such as voltage letter
Number or current signal, speed governing of the controller according to the magnetic field parameter to motor.Meanwhile the electric system push rod (60,160) is also
Install touch recognition device, the hand capacity touch pole plate B1 being manually operated for identification in the present embodiment, when the palm of people operates
When push rod (60,160) speed governing, finger contacts capacitance touch pole plate B1, generates induced current, which passes to control
Device allows the controller to identify whether it is artificial motor operation according to current signal.Therefore, the motor control method of the present embodiment and
Electric system switch is by hardware configuration combination software realization, and intelligence, safety, reliably, no physics power switch is without carrying afterflow
High current.
The motor control method and electric system of the present embodiment realize motor tune using contactless magnetic detection mode
Speed starts and stops function;Touch recognition device is integrated on push rod, while realizing human bioequivalence function;The electric system
Inside can give the release of brushless motor energy to provide efficient afterflow and return it is not necessary that power supply power supply switch and external power diode is arranged
Road, safety are reliably, of low cost.
The apparatus embodiments described above are merely exemplary, wherein the unit illustrated as separating component can
It is physically separated with being or may not be, the component shown as unit may or may not be physics list
Member, you can be located at a place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of module achieve the purpose of the solution of this embodiment.
Finally it should be noted that:Above example is only to illustrate the technical solution of the application, rather than its limitations;At this
It under the thinking of application, can also be combined between the technical characteristic in above example or different embodiment, step can be with
It is realized with random order, and there are many other variations of the different aspect of the application as described above, for simplicity, they do not have
Have and is provided in details;Although the application is described in detail with reference to the foregoing embodiments, the ordinary skill people of this field
Member should understand that:It still can be with technical scheme described in the above embodiments is modified, or to which part skill
Art feature carries out equivalent replacement;And these modifications or replacements, each reality of the application that it does not separate the essence of the corresponding technical solution
Apply the range of a technical solution.
Claims (10)
1. a kind of motor control method, which is characterized in that include the following steps:
When relative to magnetic detection device change in location occurs for magnetic part, obtains magnetic detection device induced magnetism part magnetic field and generate
Magnetic field parameter;
Judge the magnetic field parameter, when magnetic field parameter is more than and starts threshold value, start motor, is less than the startup in magnetic field parameter
When threshold value, stop powering to motor;
Wherein, after magnetic field parameter is more than startup threshold value startup motor, continue to obtain the magnetic detection device induction magnetic
Property part magnetic field parameter variation, according to the magnetic field parameter variation to the motor carry out speed governing.
2. according to the method described in claim 1, it is characterized in that, the magnetic field parameter is induced potential value or induced current
The startup threshold value of value, the motor is corresponding voltage threshold or current threshold.
3. a kind of electric system, which is characterized in that the magnetic detection device including motor, controller, the connection controller with
And the magnetic part of Untouched control motor, the motor connect power supply by controller, the controller includes receiving
Module, judgment module and speed adjusting module,
When relative to the magnetic detection device change in location occurs for the magnetic part, the magnetic detection device induced magnetism part
Magnetic field generate magnetic field parameter, the receiving module is for receiving the magnetic field parameter;
The judgment module is provided with the startup threshold value corresponding to the motor of magnetic field parameter;The judgment module is used to join in magnetic field
When number is more than the startup threshold value, start the motor, when magnetic field parameter is less than the startup threshold value, stops supplying motor
Electricity;
Magnetic field parameter be more than the startups threshold value when, the speed adjusting module be used for according to magnetic field parameter change to the motor into
Row speed governing.
4. electric system according to claim 3, which is characterized in that the magnetic field parameter is induced potential value or inducts
The startup threshold value of current value, the motor is corresponding voltage threshold or current threshold.
5. electric system according to claim 3, which is characterized in that further include power drive control module, the power
Drive module is connect with the controller and the motor, for being provided for the motor according to the control signal of the controller
Driving power.
6. electric system according to claim 5, which is characterized in that the magnetic part is arranged in the magnetic detection device
Detectable range in, the speed adjusting module of the controller is provided with induced potential value and the associated data of motor speed, described
When magnetic part is close to the magnetic detection device, the induced potential value of the magnetic detection device output increases, the speed governing mould
The speed that block is used to control the motor improves therewith;When the magnetic part is far from the magnetic detection device, the magnetic inspection
The induced potential value for surveying device output reduces, and the speed that the speed adjusting module is used to control the motor decreases.
7. electric system according to claim 5, which is characterized in that the controller collection controls mould at the power drive
Block.
8. according to the electric system described in claim 3-7 any one, which is characterized in that the controller further includes for changing
Become the motor positive and inverse switch of direction of motor rotation.
9. electric system according to claim 8, which is characterized in that the magnetic part is arranged in the push rod manipulated by user
On, it is arranged whether touch recognition device is for identification manual operation on the push rod, the touch recognition device and the control
Device connection and data communication processed.
10. electric system according to claim 9, which is characterized in that the touch recognition device includes connection controller
Capacitance and the capacitance touch pole plate that is arranged on the push rod.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/106381 WO2019075616A1 (en) | 2017-10-16 | 2017-10-16 | Electric motor control method and electric motor system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108702119A true CN108702119A (en) | 2018-10-23 |
Family
ID=63844122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780008982.0A Pending CN108702119A (en) | 2017-10-16 | 2017-10-16 | A kind of motor control method and electric system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108702119A (en) |
| WO (1) | WO2019075616A1 (en) |
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| CN106059410A (en) * | 2016-07-08 | 2016-10-26 | 深圳市高科润电子有限公司 | Starting method of single-phase DC brushless motor |
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| CN1297605A (en) * | 1998-04-13 | 2001-05-30 | 巴西船用压缩机有限公司 | Starting system for electric motor |
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| US20090200971A1 (en) * | 2008-02-07 | 2009-08-13 | Yoshitaka Iwaji | Drive system of synchronous motor |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2019075616A1 (en) | 2019-04-25 |
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