CN107465370A - Suitable for the braking method and system of permanent-magnet brushless DC electric machine - Google Patents
Suitable for the braking method and system of permanent-magnet brushless DC electric machine Download PDFInfo
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- CN107465370A CN107465370A CN201710933955.6A CN201710933955A CN107465370A CN 107465370 A CN107465370 A CN 107465370A CN 201710933955 A CN201710933955 A CN 201710933955A CN 107465370 A CN107465370 A CN 107465370A
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- electric machine
- permanent
- magnet brushless
- brushless
- power supply
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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
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/24—Arrangements for stopping
Abstract
The present invention relates to a kind of braking method and system, especially a kind of braking method and system suitable for permanent-magnet brushless DC electric machine, belong to the technical field of permanent-magnet brushless DC electric machine.According to technical scheme provided by the invention, the braking method suitable for permanent-magnet brushless DC electric machine, when disconnecting power supply of the motor power to permanent-magnet brushless DC electric machine, by three phase line short circuits of permanent-magnet brushless DC electric machine, to change the working condition of permanent-magnet brushless DC electric machine, the braking needed for being carried out to permanent-magnet brushless DC electric machine is realized.The present invention, by three phase line short circuits of permanent-magnet brushless DC electric machine, changes the working condition of permanent-magnet brushless DC electric machine, realizes the effective brake to permanent-magnet brushless DC electric machine when permanent-magnet brushless DC electric machine loses the power supply of motor power；Uncontrollable situation such as ensure the equipment presence using permanent-magnet brushless DC electric machine and can not brake, it is ensured that permanent-magnet brushless DC electric machine and relevant device it is safe to use.
Description
Technical field
The present invention relates to a kind of braking method and system, especially a kind of braking side suitable for permanent-magnet brushless DC electric machine
Method and system, belong to the technical field of permanent-magnet brushless DC electric machine.
Background technology
Permanent-magnet brushless DC electric machine, it is simple in construction, it is easy to safeguard, service life length.For permanent-magnet brushless DC electric machine
Braking, on the premise of no external mechanical brake apparatus, typically by the way of the locked rotor of directional magnetic field, i.e., give and turn all the time
The active force of son rotation opposite direction so that rotor under external force can be static or shaken by a small margin.
But in the event of a power failure, reverse brake force can not be provided to permanent-magnet brushless DC electric machine.It is limited to structure
Limitation, especially for outer rotor hub motor, it is difficult to increase external mechanical brake gear to brshless DC motor.Therefore, it is right
In navigating on electric wheelchair or other equipment for using permanent-magnet brushless DC electric machine on ramp, under unexpected powering-off state, deposit
It can not brake or risk out of control.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, there is provided one kind is applied to permanent-magnet brushless DC electric machine
Braking method and system, it is not in the case of outside mechanical braking is increased, in powering-off state, can effectively realize to permanent magnetism without
The braking of brushless motor, securely and reliably.
According to technical scheme provided by the invention, the braking method suitable for permanent-magnet brushless DC electric machine, disconnect
During power supply of the motor power to permanent-magnet brushless DC electric machine, by three phase line short circuits of permanent-magnet brushless DC electric machine, to change forever
The working condition of magnetic brshless DC motor, realize the braking needed for being carried out to permanent-magnet brushless DC electric machine.
When permanent-magnet brushless DC electric machine becomes off-position from electriferous state, by three phases of permanent-magnet brushless DC electric machine
Line short circuit mode includes passive short circuit mode or active short circuit mode.
During using passive short circuit mode, three phase lines of permanent-magnet brushless DC electric machine by the contact portion of relay, after
The coil of electrical equipment is connected with the motor power for being powered to permanent-magnet brushless DC electric machine；In motor power to DC permanent-magnetic brushless
During motor normal condition, the normally-closed contact of relay disconnects, and three phase lines of permanent-magnet brushless DC electric machine are separate；Disconnect
During the electrical connection of motor power and permanent-magnet brushless DC electric machine, the normally-closed contact closure of relay, by permanent-magnet brushless DC electric machine
Three phase line short circuits.
During using active short circuit mode, in addition to for the motor control to controlling permanent-magnet brushless DC electric machine working condition
The electric machine controller power supply that device is powered, when motor power is to permanent-magnet brushless DC electric machine normal power supply, motor power energy
To electric machine controller power source charges, when motor power disconnects the power supply to permanent-magnet brushless DC electric machine, electric machine controller power supply
Electric machine controller can be caused to keep electriferous state；
After electric machine controller detection motor power is disconnected to the power supply of permanent-magnet brushless DC electric machine, electric machine controller passes through short
Connect three phase line short circuits that circuit causes permanent-magnet brushless DC electric machine.
Electric machine controller also connects with that can transmit the identity information identification module of identity identification information to the electric machine controller
Connect, the identity information identification module includes fingerprint identification module.
The electric machine controller is also connected with controller radio receiving transmitting module, and electric machine controller passes through controller wireless receiving and dispatching
Module and handheld terminal wireless connection.
A kind of brakes suitable for permanent-magnet brushless DC electric machine, including permanent-magnet brushless DC electric machine and for institute
The motor power of permanent-magnet brushless DC electric machine power supply, in addition to short circuit control device are stated, disconnects motor power to brushless, permanently
During the power supply of current motor, short circuit control device can by three phase line short circuits of permanent-magnet brushless DC electric machine, with change permanent magnetism without
The working condition of brushless motor, realize the braking needed for being carried out to permanent-magnet brushless DC electric machine.
The short circuit control device includes relay, the contact that three phase lines of permanent-magnet brushless DC electric machine pass through relay
Connection, the coil of relay are connected with the motor power for being powered to permanent-magnet brushless DC electric machine；In motor power to permanent magnetism
During brshless DC motor normal condition, the normally-closed contact of relay disconnects, and three phase lines of permanent-magnet brushless DC electric machine are mutually only
It is vertical；When disconnecting the electrical connection of motor power and permanent-magnet brushless DC electric machine, the normally-closed contact closure of relay, by brushless, permanently
Three phase line short circuits of direct current generator.
The short circuit control device includes being used to enter the electric machine controller for controlling permanent-magnet brushless DC electric machine working condition
The electric machine controller power supply of row power supply, when motor power is to permanent-magnet brushless DC electric machine normal power supply, motor power can be to electricity
Machine controller power source charges, when motor power is disconnected to permanent-magnet brushless DC electric machine, electric machine controller power supply can cause motor
Controller keeps electriferous state；
After electric machine controller detection motor power is disconnected to the power supply of permanent-magnet brushless DC electric machine, electric machine controller passes through short
Connect three phase line short circuits that circuit causes permanent-magnet brushless DC electric machine.
Electric machine controller also connects with that can transmit the identity information identification module of identity identification information to the electric machine controller
Connect, the identity information identification module includes fingerprint identification module.
Advantages of the present invention：When permanent-magnet brushless DC electric machine loses the power supply of motor power, by permanent magnet brushless dc
Three phase line short circuits of machine, change the working condition of permanent-magnet brushless DC electric machine, realize to the effective of permanent-magnet brushless DC electric machine
Braking；Uncontrollable situation such as ensure the equipment presence using permanent-magnet brushless DC electric machine and can not brake, it is ensured that brushless, permanently is straight
Flow the safe to use of motor and relevant device.
Brief description of the drawings
Fig. 1 is the present invention by the contact of relay by the schematic diagram of three phase line short circuits of permanent-magnet brushless DC electric machine.
Fig. 2 is the structured flowchart of the present invention.
Description of reference numerals：1- motor powers, 2- identity informations identification module, 3- electric machine controllers, 4- controllers are wireless
Transceiver module, 5- detections protection module, 6- displays, 7- motor drivers, 8- permanent-magnet brushless DC electric machines, 9- velocity feedback moulds
The manually operated module of block, 10-, 11- charge management circuits, 12- controller power sources and 13- short circuit control devices.
Embodiment
With reference to specific drawings and examples, the invention will be further described.
In the case of outside mechanical braking is not increased, in powering-off state, in order to effectively realize to DC permanent-magnetic brushless
The braking of motor 8, the present invention is when disconnecting power supply of the motor power 1 to permanent-magnet brushless DC electric machine 8, by permanent magnet brushless dc
Three phase line short circuits of machine 8, to change the working condition of permanent-magnet brushless DC electric machine 8, realize and permanent-magnet brushless DC electric machine 8 are entered
The required braking of row.
Specifically, permanent-magnet brushless DC electric machine 8 has three phase lines, respectively A phase lines, B phase lines and C phase lines, permanent magnetism
Brshless DC motor 8 is connected by three phase lines with motor power 1, and motor power 1 is provided needed for permanent-magnet brushless DC electric machine 8
Operating voltage, now, permanent-magnet brushless DC electric machine 8 are operated in electric motor state.When disconnection motor power 1 is to DC permanent-magnetic brushless
During the power supply of motor 8, in the case where not increasing outside mechanical braking, in order to realize the system to permanent-magnet brushless DC electric machine 8
It is dynamic, by three phase line short circuits of permanent-magnet brushless DC electric machine 8, after by the three of permanent-magnet brushless DC electric machine 8 piece phase line short circuit, forever
Magnetic brshless DC motor 8 works in Generator Status, and turning for the permanent-magnet brushless DC electric machine 8 is put on when there is applied external force
When on son, it can be seen from the characteristics of generator, kinetic energy caused by outside application active force is converted into electric energy, so as in powering-off state
Under, constant brake force is provided for permanent-magnet brushless DC electric machine 8, realizes the effective brake to permanent-magnet brushless DC electric machine 8.
When it is implemented, when permanent-magnet brushless DC electric machine 8 becomes off-position from electriferous state, by DC permanent-magnetic brushless
Three phase line short circuit modes of motor 8 include passive short circuit mode or active short circuit mode.
When wherein, using passive short circuit mode, three phase lines of permanent-magnet brushless DC electric machine 8 are connected by the contact of relay
Connect, the coil of relay is connected with the motor power 1 for being powered to permanent-magnet brushless DC electric machine 8；In motor power 1 to permanent magnetism
During 8 normal condition of brshless DC motor, the normally-closed contact of relay disconnects, and three phase lines of permanent-magnet brushless DC electric machine 8 are mutual
It is independent；When disconnecting the electrical connection of motor power 1 and permanent-magnet brushless DC electric machine 8, the normally-closed contact closure of relay, by permanent magnetism
Three phase line short circuits of brshless DC motor 8.
In the embodiment of the present invention, specifically referred to using passive short circuit mode when motor power 1 is disconnected to DC permanent-magnetic brushless
During the power supply of motor 8, control circuit of permanent-magnet brushless DC electric machine 8 and outside etc. is in power failure state.Motor power 1 is disconnected
Open the power supply to permanent-magnet brushless DC electric machine 8 include motor power 1 electric energy exhaust when lose to DC permanent-magnetic brushless
The state of the power supply capacity of motor 8 or it is active and passive in the case of lose the shape of power supply capacity to permanent-magnet brushless DC electric machine 8
State, concrete condition will not enumerate herein.
After the power supply that motor power 1 disconnects to permanent-magnet brushless DC electric machine 8, because external control circuit etc. is in losing
Electricity condition, in order to realize three phase line short circuits of permanent-magnet brushless DC electric machine 8, the present invention using relay contact with forever
Three phase lines connection of magnetic brshless DC motor 8, as shown in Figure 1.The coil of relay is connected with motor power 1, relay utensil
Have normally-closed contact K1 and normally-closed contact K2, A phase line, C phase lines respectively by normally-closed contact K1, normally-closed contact K2 respectively with B phases
Line connects, and when motor power 1 is normally powered to permanent-magnet brushless DC electric machine 8, the coil of relay is in electriferous state, this
When, normally-closed contact K1 and normally-closed contact K2 are in open mode, three phase line independences of permanent-magnet brushless DC electric machine 8, no
The normal work of permanent-magnet brushless DC electric machine 8 can be influenceed.After power supply of the motor power 1 to permanent-magnet brushless DC electric machine 8 is disconnected,
The coil losing electricity of relay, normally-closed contact K1 and normally-closed contact K2 closures in open mode, can be by DC permanent-magnetic brushless
Three phase line short circuits of motor 8, directly change the working condition of permanent-magnet brushless DC electric machine 8, utilize permanent-magnet brushless DC electric machine 8
The effective brake to permanent-magnet brushless DC electric machine 8 is realized in the change of working condition.
When motor power 1 restarts the power supply to permanent-magnet brushless DC electric machine 8, the normally-closed contact of relay disconnects,
The normal work of permanent-magnet brushless DC electric machine 8 is not interfered with.Certainly, in the specific implementation, the nothing of other forms can also be used
Source short circuit mode, concrete form can be selected as needed, as long as motor power can be lost in permanent-magnet brushless DC electric machine 8
After 1 power supply, the normal work of permanent-magnet brushless DC electric machine 8 is not influenceed three phase line short circuits of permanent-magnet brushless DC electric machine 8 and
Work, explanation is no longer specifically enumerated herein.When motor power 1 keeps the power supply to permanent-magnet brushless DC electric machine 8, control is forever
The technological means that the electric machine controller 3 of the working condition of magnetic brshless DC motor 8 can use the art to commonly use is realized to forever
Working condition (working condition includes traveling, stopping etc.) control of magnetic brshless DC motor 8, electric machine controller 3 is to brushless, permanently
It is that here is omitted known to those skilled in the art that direct current generator 8, which is operated the process that state controls,.
When further, using active short circuit mode, in addition to for controlling the working condition of permanent-magnet brushless DC electric machine 8
The electric machine controller power supply 12 that is powered of electric machine controller 3, permanent-magnet brushless DC electric machine 8 is normally supplied in motor power 1
When electric, motor power 1 can charge to electric machine controller power supply 12, disconnect the confession to permanent-magnet brushless DC electric machine 8 in motor power 1
When electric, electric machine controller power supply 12 can cause electric machine controller 3 to keep electriferous state；
After the detection motor power 1 of electric machine controller 3 disconnects the power supply to permanent-magnet brushless DC electric machine 8, electric machine controller 3 is logical
Cross three phase line short circuits that short-circuit causes permanent-magnet brushless DC electric machine 8.
As shown in the above description, when motor power 1 disconnects the power supply to permanent-magnet brushless DC electric machine 8, generally,
Electric machine controller 3 for controlling the working condition of permanent-magnet brushless DC electric machine 8 is also at power failure state, i.e., at electric machine controller 3
In without electric stop working state, the working condition of permanent-magnet brushless DC electric machine 8 can not be controlled.Disconnected in motor power 1
During to the power supply state of permanent-magnet brushless DC electric machine 8, in order to avoid electric machine controller 3 is also stopped shape in power-off simultaneously
State, in the embodiment of the present invention, the power supply to electric machine controller 3 is realized using electric machine controller power supply 12.Electric machine controller power supply
12 can use existing conventional chargeable lithium cell, can be to electricity when motor power 1 is powered to permanent-magnet brushless DC electric machine 8
Machine controller power supply 12 charges, and when motor power 1 is disconnected, and permanent-magnet brushless DC electric machine 8 is powered, utilizes electric machine controller electricity
Source 12 causes electric machine controller 3 to keep electriferous state.
When make it that electric machine controller 3 keeps electriferous state using electric machine controller power supply 12, permanent-magnet brushless DC electric machine 8
Off-position is still in, but during the holding electriferous state of electric machine controller 3, electric machine controller 3 can detect the power supply of motor power 1
State.After electric machine controller 3 determines that motor power 1 disconnects the power supply to permanent-magnet brushless DC electric machine 8, electric machine controller 3 can
To pass through three phase line short circuits of short-circuit permanent-magnet brushless DC electric machine 8.Short-circuit can still use above-mentioned
Relay form, simply the coil electriferous state of relay controlled by electric machine controller 3；Certainly, short-circuit can also use
Other forms of implementation, it is as long as being realized under the control of electric machine controller 3 by the short circuit of 8 three phase lines of permanent-magnet brushless DC electric machine
Can, specific implementation form can be selected as needed, will not enumerate herein.
As shown in Fig. 2 according to the above-mentioned braking method suitable for permanent-magnet brushless DC electric machine, obtain kind being applied to permanent magnetism without
The brakes of brushless motor, specifically, including permanent-magnet brushless DC electric machine 8 and for the permanent magnet brushless dc
The motor power 1 that machine 8 is powered, in addition to short circuit control device 13, motor power 1 is disconnected to brushless, permanently current motor 8
During power supply, short circuit control device 13 can be by three phase line short circuits of permanent-magnet brushless DC electric machine 8, to change permanent magnet brushless dc
The working condition of machine 8, realize and required braking is carried out to permanent-magnet brushless DC electric machine 8.
Specifically, motor power 1 realizes the power supply to permanent-magnet brushless DC electric machine 8, and permanent-magnet brushless DC electric machine 8 is in motor
The power supply of power supply 1 is lower to be rotated, to drive the motion of distinct device, cooperating between motor power 1 and permanent-magnet brushless DC electric machine 8
Process for known to those skilled in the art, here is omitted.Motor power 1 is disconnected to permanent-magnet brushless DC electric machine 8
Power supply after, if having under applied external force effect, the presence under out-of-control condition of permanent-magnet brushless DC electric machine 8 can not brake etc. can not
Control situation, in order to realize the effective brake to permanent-magnet brushless DC electric machine 8, using short circuit control device 13 by DC permanent-magnetic brushless
The short circuit of 8 three phase lines of motor, change the working condition of permanent-magnet brushless DC electric machine 8, realize to permanent-magnet brushless DC electric machine 8
Effective brake.Three phase line short circuits of permanent-magnet brushless DC electric machine 8 and the process for realizing braking etc. may be referred to above-mentioned
Illustrate, here is omitted.
When it is implemented, the short circuit control device 13 includes relay, three phase lines of permanent-magnet brushless DC electric machine 8 are led to
The contact portion of relay is crossed, the coil of relay is connected with the motor power 1 for being powered to permanent-magnet brushless DC electric machine 8；
When motor power 1 is to 8 normal condition of permanent-magnet brushless DC electric machine, the normally-closed contact of relay disconnects, permanent magnet brushless dc
Three phase lines of machine 8 are separate；When disconnecting the electrical connection of motor power 1 and permanent-magnet brushless DC electric machine 8, relay it is normal
Closed contact closes, by three phase line short circuits of permanent-magnet brushless DC electric machine 8.
In addition, the short circuit control device 13 includes being used for the motor to controlling the working condition of permanent-magnet brushless DC electric machine 8
The electric machine controller power supply 12 that controller 3 is powered, when motor power 1 is to 8 normal power supply of permanent-magnet brushless DC electric machine, electricity
Electromechanical source 1 can charge to electric machine controller power supply 12, when motor power 1 disconnects the power supply to permanent-magnet brushless DC electric machine 8, electricity
Machine controller power supply 12 can cause electric machine controller 3 to keep electriferous state；
After the detection motor power 1 of electric machine controller 3 disconnects the power supply to permanent-magnet brushless DC electric machine 8, electric machine controller 3 is logical
Cross three phase line short circuits that short-circuit causes permanent-magnet brushless DC electric machine 8.
In the embodiment of the present invention, short circuit control device 13 can be above-mentioned passive short circuit mode or active short circuit mode,
Passive short circuit mode, active short circuit mode are realized can join to process of 8 three phase line short circuits of permanent-magnet brushless DC electric machine etc.
Described above is examined, here is omitted.
Further, identity information of the electric machine controller 3 also with identity identification information can be transmitted to the electric machine controller 3
Identification module 2 connects, and the identity information identification module 2 includes fingerprint identification module.
For equipment such as the electric wheelchairs using permanent-magnet brushless DC electric machine 8, identity information identification module can also be increased
2, it is used for identifying the identity using equipment, the situation for avoiding relevant device from being abused or misapplied using identity information identification module 2.
Certainly, when specifically used, it is necessary to identity information be prestored in electric machine controller 3, when identity information identification module 2 identifies
Identity information it is consistent with the identity information of the memory storage of electric machine controller 3 when, electric machine controller 3 just allows to be controlled accordingly
Or operation.Identity information identification module 2 can use fingerprint identification module, iris recognition module or the identification of other identity informations
Type, it can specifically be selected as needed, fingerprint identification module etc. can use existing conventional form, no longer superfluous herein
State.
Electric machine controller 3 can manage charging of the motor power 1 to electric machine controller power supply 12 by charge management module 11
Process, charge management module 11 can use existing conventional circuit form, as long as can meet to electric machine controller power supply 12
Charge Management, here is omitted.
When it is implemented, when permanent-magnet brushless DC electric machine 8 is applied on electric wheelchair, electric machine controller 3 can pass through
Controller radio receiving transmitting module 4 and outside handheld terminal wireless connection, specifically, electric machine controller 3 is used to control Electric Motor Wheel
The work of chair, can control the behaviors such as the walking, turning and stopping of electric wheelchair, and electric machine controller 3 can use single-chip microcomputer
Deng conventional micro-chip processor, concrete form can be selected as needed, and here is omitted.
Handheld terminal can use existing conventional intelligent terminal, such as smart mobile phone or Intelligent flat, as long as can realize
With the form of the wireless connection of electric machine controller 3.When it is implemented, the controller radio receiving transmitting module 4 includes bluetooth mould
Block, infrared module or WIFI module, when controller radio receiving transmitting module 4 is using different forms, handheld terminal is using corresponding
Form realize and be adapted to wireless connection with electric machine controller 3.
In the embodiment of the present invention, electric machine controller 3 is with that after handheld terminal wireless connection, can utilize handheld terminal realization pair
The switch control of electric wheelchair, can also utilize the wireless telecommunications between electric machine controller 3 to realize the motion of electric wheelchair, from
And can be remotely controlled wheelchair in bed for some handicapped people and come, it is easy to use wheelchair.In addition, for trick inconvenience
User, particularly hand are inoperable, and traveling can by guardian's mobile phone remote, mitigate guardian's burden.More enter one
Step ground, handheld terminal is with that after the wireless connection of electric machine controller 3, can adjust the control parameter of electric wheelchair, the control parameter
To control the parameter of electric wheelchair motion state, so as to meet different users, meets the needs of customization is personalized.
Further, the electric machine controller 3 is connected by motor driver 7 with permanent-magnet brushless DC electric machine 8, the electricity
Machine controller 3 is also connected and for examining Electric Motor Wheel with the velocity feedback module 9 for measuring the rotating speed of permanent-magnet brushless DC electric machine 8
Temperature, the detection protection module 5 of current parameters connect when chair controller 1 works.
Permanent-magnet brushless DC electric machine 8 is used for the motion for driving electric wheelchair, and permanent-magnet brushless DC electric machine 8 is driven by motor
Device 7 drives, and electric machine controller 3 drives the work of permanent-magnet brushless DC electric machine 8, the tool of motor driver 7 by motor driver 7
Body form is adapted to permanent-magnet brushless DC electric machine 8, and the specific fit form of motor driver 7 and permanent-magnet brushless DC electric machine 8 is
Known to those skilled in the art, here is omitted.
When permanent-magnet brushless DC electric machine 8 works, permanent-magnet brushless DC electric machine 8 can be obtained by velocity feedback module 9
Rotating speed, i.e., the velocity feedback by velocity feedback module 9 to permanent-magnet brushless DC electric machine 8, it can realize to permanent magnet brushless dc
The closed-loop control of machine 8, it is ensured that permanent-magnet brushless DC electric machine 8 is operated in required state.Detection protection module 5 is electronic for detecting
Temperature value, current value and corresponding magnitude of voltage when wheelchair controller 1 works etc., detection protection module 5 can use temperature
The forms such as sensor, current sensor, detection protection module 5 are connected with motor driver 7, and electric machine controller 3 is protected according to detection
The result that shield module 5 detects is controlled, situations such as overheat and excessively stream when avoiding the electric wheelchair controller 1 from working
Occur, extend the service life of electric wheelchair controller 1.In the specific implementation, electric machine controller 3 can also be straight by brushless, permanently
Electric current or temperature value when flowing real-time rotating speed, the work of motor 8 are transmitted to handheld terminal by controller radio receiving transmitting module 4,
So that use process of the handheld terminal to electric wheelchair carries out effective monitoring, judge whether electric wheelchair is in normal shape all the time
State, the risk for avoiding electric wheelchair from being brought when using in abnormal cases.
Further, the electric machine controller 3 is also connected with for the display 6 of presentation of information and for motor control
The manually operated module 10 of the transmitting operational information of device 3 processed connects.
Electric machine controller 3 shows information during electric wheelchair work using display 6, such as selects electric wheelchair Working mould
Information of formula etc., the particular content that display 6 is shown can be selected as needed, and here is omitted.Manually operated mould
Block 10 is used to transmit manual information to electric machine controller 3, and the manual information that manually operated module 10 inputs such as starts information, brake
Information etc., manually operated module 10 can use the structure type that the art is commonly used, and such as handle or button, be specially this
Known to technical field personnel, here is omitted.
When it is implemented, after electric machine controller 1 and handheld terminal wireless connection, electric wheelchair user can be with profit
Remote call-in is realized to handheld terminal with manually operated module 10 and electric machine controller 1, realizes the nothing between handheld terminal
The abilities such as line call, so as to which when the user of electric wheelchair wants help, the wireless connection to handheld terminal can be passed through in time
Or wireless communication, effectively realize help in time.When electric machine controller 1 is with handheld terminal wireless communication, controller wireless receiving and dispatching
Module 4 is needed using forms such as SIM card or GPRS modules.In addition, it can also be connected on electric machine controller 1 with locating module, energy
Location information is sent to handheld terminal in real time by controller radio receiving transmitting module 4, to use the monitoring of handheld terminal
People etc. understands the information such as the position of electric wheelchair in time.
Claims (10)
1. a kind of braking method suitable for permanent-magnet brushless DC electric machine, it is characterized in that：Motor power is disconnected to brushless, permanently
During the power supply of direct current generator, by three phase line short circuits of permanent-magnet brushless DC electric machine, to change the work of permanent-magnet brushless DC electric machine
Make state, realize the braking needed for being carried out to permanent-magnet brushless DC electric machine.
2. the braking method according to claim 1 suitable for permanent-magnet brushless DC electric machine, it is characterized in that：In brushless, permanently
Direct current generator from electriferous state become off-position when, by three phase line short circuit modes of permanent-magnet brushless DC electric machine include it is passive
Short circuit mode or active short circuit mode.
3. the braking method according to claim 2 suitable for permanent-magnet brushless DC electric machine, it is characterized in that：Using passive short
When connecing mode, three phase lines of permanent-magnet brushless DC electric machine by the contact portion of relay, the coil of relay with for pair
The motor power connection of permanent-magnet brushless DC electric machine power supply；When motor power is to permanent-magnet brushless DC electric machine normal condition, after
The normally-closed contact of electrical equipment disconnects, and three phase lines of permanent-magnet brushless DC electric machine are separate；Disconnect motor power and permanent magnetism without
During the electrical connection of brushless motor, the normally-closed contact closure of relay, by three phase line short circuits of permanent-magnet brushless DC electric machine.
4. the braking method according to claim 2 suitable for permanent-magnet brushless DC electric machine, it is characterized in that：Using active short
When connecing mode, in addition to for the motor control to controlling the electric machine controller of permanent-magnet brushless DC electric machine working condition to be powered
Device power supply processed, when motor power is to permanent-magnet brushless DC electric machine normal power supply, motor power can fill to electric machine controller power supply
Electricity, when motor power disconnects the power supply to permanent-magnet brushless DC electric machine, electric machine controller power supply can cause electric machine controller to protect
Hold electriferous state；
After electric machine controller detection motor power is disconnected to the power supply of permanent-magnet brushless DC electric machine, electric machine controller passes through short circuit electricity
Road causes three phase line short circuits of permanent-magnet brushless DC electric machine.
5. the braking method according to claim 4 suitable for permanent-magnet brushless DC electric machine, it is characterized in that：Electric machine controller
Also it is connected with the identity information identification module of identity identification information can be transmitted to the electric machine controller, the identity information identification
Module includes fingerprint identification module.
6. the braking method suitable for permanent-magnet brushless DC electric machine according to claim 4 or 5, it is characterized in that：The electricity
Machine controller is also connected with controller radio receiving transmitting module, and electric machine controller passes through controller radio receiving transmitting module and handheld terminal
Wireless connection.
7. a kind of brakes suitable for permanent-magnet brushless DC electric machine, it is characterized in that：Including permanent-magnet brushless DC electric machine and
For the motor power powered to the permanent-magnet brushless DC electric machine, in addition to short circuit control device, motor power pair is disconnected
During the power supply of brushless, permanently current motor, short circuit control device can be by three phase line short circuits of permanent-magnet brushless DC electric machine, to change
Become the working condition of permanent-magnet brushless DC electric machine, realize the braking needed for being carried out to permanent-magnet brushless DC electric machine.
8. it is applied to the brakes of permanent-magnet brushless DC electric machine according to claim 7, it is characterized in that：The short circuit control
Device includes relay, three phase lines of permanent-magnet brushless DC electric machine by the contact portion of relay, the coil of relay with
For the motor power connection powered to permanent-magnet brushless DC electric machine；In motor power to permanent-magnet brushless DC electric machine normal condition
When, the normally-closed contact of relay disconnects, and three phase lines of permanent-magnet brushless DC electric machine are separate；In disconnection motor power and forever
During the electrical connection of magnetic brshless DC motor, the normally-closed contact closure of relay is short by three phase lines of permanent-magnet brushless DC electric machine
Connect.
9. it is applied to the brakes of permanent-magnet brushless DC electric machine according to claim 7, it is characterized in that：The short circuit control
Device includes being used for the electric machine controller electricity to controlling the electric machine controller of permanent-magnet brushless DC electric machine working condition to be powered
Source, when motor power is to permanent-magnet brushless DC electric machine normal power supply, motor power can be to electric machine controller power source charges, in electricity
When electromechanical source is disconnected to permanent-magnet brushless DC electric machine, electric machine controller power supply can cause electric machine controller to keep electriferous state；
After electric machine controller detection motor power is disconnected to the power supply of permanent-magnet brushless DC electric machine, electric machine controller passes through short circuit electricity
Road causes three phase line short circuits of permanent-magnet brushless DC electric machine.
10. it is applied to the brakes of permanent-magnet brushless DC electric machine according to claim 9, it is characterized in that：Electric machine controller
Also it is connected with the identity information identification module of identity identification information can be transmitted to the electric machine controller, the identity information identification
Module includes fingerprint identification module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710933955.6A CN107465370A (en) | 2017-10-10 | 2017-10-10 | Suitable for the braking method and system of permanent-magnet brushless DC electric machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710933955.6A CN107465370A (en) | 2017-10-10 | 2017-10-10 | Suitable for the braking method and system of permanent-magnet brushless DC electric machine |
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Cited By (2)
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| CN109347376A (en) * | 2018-11-09 | 2019-02-15 | 中国科学院长春光学精密机械与物理研究所 | Brshless DC motor braking method and system |
| CN110989697A (en) * | 2019-12-03 | 2020-04-10 | 首航节能光热技术股份有限公司 | Heliostat controller and method thereof |
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| CN106167221A (en) * | 2016-07-28 | 2016-11-30 | 廖忠民 | Timing Belt main transmission balanced drive Gear-and-rack elevator |
| CN206038778U (en) * | 2016-08-31 | 2017-03-22 | 南京康尼电子科技有限公司 | Three phase current lacks looks, power failure detection system |
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| CN106167221A (en) * | 2016-07-28 | 2016-11-30 | 廖忠民 | Timing Belt main transmission balanced drive Gear-and-rack elevator |
| CN106124872A (en) * | 2016-08-31 | 2016-11-16 | 南京康尼电子科技有限公司 | A kind of open phases of three-phase power source, detection of power loss system and braking method |
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| CN109347376A (en) * | 2018-11-09 | 2019-02-15 | 中国科学院长春光学精密机械与物理研究所 | Brshless DC motor braking method and system |
| CN110989697A (en) * | 2019-12-03 | 2020-04-10 | 首航节能光热技术股份有限公司 | Heliostat controller and method thereof |
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Application publication date: 20171212 |