CN107769638A - Method and apparatus for drive motor - Google Patents
Method and apparatus for drive motor Download PDFInfo
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- CN107769638A CN107769638A CN201710110743.8A CN201710110743A CN107769638A CN 107769638 A CN107769638 A CN 107769638A CN 201710110743 A CN201710110743 A CN 201710110743A CN 107769638 A CN107769638 A CN 107769638A
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- motor
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- switch device
- voltage
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- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
The present invention relates to the method and apparatus for drive motor.A kind of device for being used to drive the motor of the rearview mirror for folded vehicle is provided, wherein integrated circuit (IC) can be manufactured.Described device includes：Direction-determining unit, the direction-determining unit are configured to the control signal by determining the polarity of input voltage to export for determining motor driving direction；Drive circuit unit, the drive circuit unit are configured to drive the motor based on the control signal exported；The motor, the motor are driven by the drive circuit unit；And rectifier, the rectifier are configured to by carrying out rectification to the input voltage to provide the voltage with constant polarity to the drive circuit unit.
Description
The cross reference of related application
This application claims in the korean patent application 10-2016- submitted in Korean Intellectual Property Office on the 17th of August in 2016
The rights and interests of No. 0104491, the disclosure of the korean patent application are incorporated herein by reference in their entirety.
Technical field
One or more embodiments are related to a kind of method and apparatus for drive motor, more particularly, to control
The method and apparatus for making the motor of the folding rearview mirror for driving vehicle.
Background technology
With the latest developments of electronic technology, constantly increase for the demand that convenient feature is provided for vehicle driver.
Therefore, many existing vehicle rearview mirrors be hand foldable and expansion, and most of newest rearview mirrors by using
Electronic RELAY devices are folded and deployed.Especially, because parking space is small and narrow, most of vehicles, which have, folds side back sight
Mirror.Consumer is growing to the demand for electronically controlling the ability of heating wire and vehicle rearview mirror angle of reflection, in addition,
It may need to be used to continuously send/receive from it currently to central control unit (for example, electronic control unit (ECU)) in the future
The function of rearview mirror state.In this respect, the device of the motor for driving vehicle rearview mirror needs have a variety of work(
Energy and compact design.
The content of the invention
Because current automaker by using two-wire input method realizes the folding of vehicle rearview mirror and expansion,
Therefore, it is difficult to add various defencive functions and other additional functions.Further, since needing many parts, therefore, it is difficult to reduce folding
The size of folded rearview mirror.Therefore, one or more embodiments provide one kind by using direction change circuit to drive
Installed in folding the motor on rearview mirror so as to adding the method and apparatus of defencive function and additional function.
Other aspect will be set forth in part in the description which follows, and partly will be apparent from the description, or
Person can be by implementing proposed embodiment and acquistion.
According to one or more embodiments, a kind of dress for being used to drive the motor of the rearview mirror for folded vehicle
Put, described device includes：Direction-determining unit, the direction-determining unit are configured to the polarity output based on input voltage and used
In it is determined that the control signal of motor driving direction；Drive circuit unit, the drive circuit unit are configured to based on described
Control signal drives the motor；The motor, the motor are driven by the drive circuit unit；And rectification
Device, the rectifier are configured to have perseverance by carrying out rectification to the input voltage to be provided to the drive circuit unit
Determine the power supply of polarity.
According to one or more embodiments, a kind of method for the motor for driving the rearview mirror for folded vehicle,
Including：By carrying out rectification to input voltage to provide the voltage with constant polarity to drive circuit unit；Based on described defeated
The polarity for entering voltage exports control signal for determining motor driving direction；And work as exported control signal and be determined
For positive control signal when, motor described in forward drive, and when the control signal is confirmed as reverse control signal,
Motor described in reverse drive.
Brief description of the drawings
It will be clear and be easier according to reference to following description of the accompanying drawing to embodiment, these and/or other side
Understand, in the accompanying drawings：
Fig. 1 is the circuit diagram for driving the conventional equipment of the motor of the folding rearview mirror for vehicle；
Fig. 2 is the device for being used to drive the motor of the rearview mirror for folded vehicle according to an embodiment
Circuit diagram；
Fig. 3 is the circuit diagram according to the rectifier of an embodiment；
Fig. 4 is the circuit diagram according to the direction-determining unit of an embodiment；
Fig. 5 is the circuit diagram according to the drive circuit unit of the rearview mirror for folded vehicle of an embodiment；
Fig. 6 is the circuit of the drive circuit unit of the rearview mirror for folded vehicle according to another embodiment
Figure；
Fig. 7 is the circuit according to the drive circuit unit of the rearview mirror for folded vehicle of further embodiment
Figure；And
Fig. 8 is the flow according to the method for the motor of the folding rearview mirror for being used to drive vehicle of an embodiment
Figure.
Embodiment
Hereinafter, embodiment will be explained in detail with reference to the appended drawings.In the description of present inventive concept, when thinking related
When technology or configuration some explain in detail the essence that may have unnecessarily obscured present inventive concept, omit this and explain in detail.
The term used in this specification allows for the function of being used in present inventive concept and defined, and can according to client,
Operator, user or precedent intention and change.Therefore, determining for term should be understood based on the whole description of this specification
Justice.
In the accompanying drawings, identical reference represents identical element.
Fig. 1 is the circuit diagram for driving the conventional equipment of the motor of vehicle folding rearview mirror.
In Fig. 1 conventional equipment, changed due to being applied to the polarity of voltage of element according to motor direction, so
It must be carefully selected device (particularly its rated voltage and polarity).Because Fig. 1 conventional equipment uses the device of one, therefore
The conventional equipment it is bulky, and be difficult to increase various protection circuits and function to it.
The operation of Fig. 1 conventional equipment is simple.When stopping or driving in small space, driver is folded for car
Rearview mirror, and deploy rearview mirror before driving.However, the power command of conventional equipment and direction change order
Only performed by using 2- line methods.
In Fig. 1, when the voltage with positive polarity is applied into IN1 and the voltage with negative polarity is applied into IN2
When, the electric current of drive motor 3 flows to node 10 from node 9, therefore folds rearview mirror.On the contrary, positive polarity will be had by working as
Voltage when being applied to IN1 and the voltage with negative polarity being applied into IN2, the electric current of drive motor 3 flows from node 10
To node 9, therefore drive motor 3 rotates in mutually opposite directions, so as to deploy rearview mirror.This is provided as example, but
It is that conventional equipment can be additionally configured to so that when electric current flows to node 10 from node 9, rearview mirror can deploy.
Fig. 2 is the electronic of the rearview mirror being used to drive for folded vehicle according to an illustrative embodiment of the invention
The circuit diagram of the device 200 of machine.
With reference to figure 2, the voltage with identical polar is always applied to the direction-determining unit 202 of device 200 and driven
Circuit unit 203, and the polarity of the voltage with being applied to IN1 and IN2 is unrelated.Therefore, change with the direction wherein whenever motor
The conventional equipment of reversing (rearview mirror is folded or deployed) is compared during change, it is easier to is optionally comprised in device 200
Device, with add protection circuit and formed integrated circuit.Direction-determining unit 202 is applied to IN1's and IN2 by monitoring
The polarity of supply voltage determines motor driving direction, and drive circuit unit 203 according to direction-determining unit 202 really
Determine signal and carry out drive motor.
Detailed operation will be explained now.Direction-determining unit 202 checks the polarity for the voltage for being applied to IN1.As an alternative,
Direction-determining unit 202 can check the polarity for the voltage for being applied to IN2 according to the selection of designer.Check as a result,
When it is just (+) to be applied to the IN1 polarity of supply voltage, direction-determining unit 202 exports forward direction to drive circuit unit 203
Control signal.When drive circuit unit 203 receives positive control signal from direction-determining unit 202, drive circuit unit
203 forward drive motor are to fold rearview mirror.As an alternative, drive circuit unit 203 can be according to the selection of designer just
To drive motor to deploy rearview mirror.
On the contrary, when direction-determining unit 202 checks the polarity for the voltage for being applied to IN1 and determines polarity to bear (-),
Reverse control signal is output to drive circuit unit 203 by direction-determining unit 202.When drive circuit unit 203 is true from direction
When order member 202 receives reverse control signal, the inverted driven motor of drive circuit unit 203 is to deploy rearview mirror.Replace
Selection of land, drive circuit unit 203 can be according to the selection inverted driven motors of designer to fold rearview mirror, and this is by ability
The those of ordinary skill in domain is considered that simple design changes or is adapted to.
Fig. 3 is the circuit diagram of rectifier according to an illustrative embodiment of the invention.
It is designed to always to VP and VN output tools with reference to the rectifier of figure 3, including four commutation diodes 301 to 304
There is the voltage of identical polar, and the polarity of the voltage with being applied to IN1 and IN2 is unrelated.For example, work as the voltage with positive polarity
When being applied to IN1 and the voltage with negative polarity being applied into IN2, electric current can flow through rectifier diodes 301 and 303.
When the voltage with negative polarity is applied into IN1 and the voltage with positive polarity is applied into IN2, electric current can flow through two
Pole pipe 302 and 304.Therefore, the voltage with positive polarity can always be output to VP, and the voltage with negative polarity can be total
It is to be output to VN.
Fig. 4 is the circuit diagram of direction-determining unit 202 according to an illustrative embodiment of the invention.
With reference to figure 4, direction-determining unit 202 includes the operational amplifier 404 as comparator.It is applied to IN1 power supply
Voltage is applied to the input (+) of operational amplifier 404, and reference voltage VrefIt is applied to the defeated of operational amplifier 404
Enter end (-), and operational amplifier compares the two voltages.According to comparative result, the output of operational amplifier 404 is used as comparator
The control signal of output.If applied to IN1 voltage is positive voltage and is more than reference voltage Vref, then comparator, which exports, is
Just (+), and be reserved as the control signal of forward drive motor and export.On the contrary, if applied to IN1 voltage
It is negative voltage and is less than reference voltage Vref, then comparator output is negative (-), and is reserved as inverted driven motor
Control signal and export.As an alternative, the reference voltage V in Fig. 4refIt can correspond to be applied to Fig. 3 VP voltage and Fig. 3
VN can be grounded.
Fig. 5 is the drive circuit unit of the rearview mirror for folded vehicle according to an illustrative embodiment of the invention
Circuit diagram.
For example, Fig. 2 drive circuit unit 203 is the H-bridge circuit for including four switching devices 501 to 504, it can be
Transistor as shown in Figure 5 or mos field effect transistor (MOSFET).It is defeated when direction-determining unit 202
When to go out signal be the control signal for forward drive motor, drive circuit unit 203 passes through the He of ON switch device 501
504 and export OUT2 electric current flowed to come drive motor from OUT1 by motor.
On the contrary, when the output signal of direction-determining unit 202 is the control signal for inverted driven motor, drive
Dynamic circuit unit 203 by ON switch device 502 and 503 and makes electric current flow to OUT1 from OUT2 by motor reversely to drive
Dynamic motor.
Fig. 6 is the drive circuit unit of the rearview mirror for folded vehicle according to another implementation of the invention
Circuit diagram.
With reference to the drive circuit of figure 6, including Fig. 2 of two diodes 611 and 612 and two switching devices 601 and 602
Unit 203 is according to the signal drive motor of direction-determining unit 202.When the output signal of direction-determining unit 202 is to be used for
During the control signal of forward drive motor, drive circuit unit 203 can be passed through by only turning on switching device 602 and exporting
The electric current that motor flows to OUT2 from OUT1 carrys out forward drive motor, and this is different from Fig. 5.In this case, switching device
601 have to be off.
On the contrary, when the output signal of direction-determining unit 202 is the control signal for inverted driven motor, driving
Circuit unit 203 by disconnect switching device 602 and only turn on switching device 601 and make electric current by motor from OUT2 flow
Carry out inverted driven motor to OUT1.
Fig. 7 is the electricity according to the drive circuit unit of the rear mirror for folded vehicle of the further embodiment of the present invention
Lu Tu.
With reference to the drive circuit of figure 7, including Fig. 2 of two switching devices 701 and 702 and two diodes 711 and 712
Unit 203 is according to the signal drive motor of direction-determining unit 202.
When the output signal of direction-determining unit 202 is the control signal for forward drive motor, drive circuit
Unit 203 can flow to OUT2 electric current come positive drive by motor by only turning on switching device 701 and exporting from OUT1
Dynamic motor.In this case, switching device 702 have to be off.
On the contrary, when the output signal of direction-determining unit 202 is the control signal for inverted driven motor, drive
Dynamic circuit unit 203 by disconnecting switching device 701, and only turn on switching device 702 and make electric current by motor from
OUT2 flows to OUT1 and carrys out inverted driven motor.
In Fig. 5 into Fig. 7, each switching device can be transistor or any other switching device.That is, switch
Device can be transistor, or according to the power level of system can be MOSFET, igbt (IGBT), door
Pole cut-off crystal brake tube (GTO) or exchange triode (Triode for Alternating Current, TRIAC).
Fig. 8 is the flow chart according to the method for the motor of the folding rearview mirror of the driving vehicle of an embodiment.
First, in S810 is operated, device has by carrying out rectification to input voltage to drive circuit unit supply
The power supply of the voltage of a certain polarity (constant polarity).In S820 is operated, polarity of the direction-determining unit 202 based on input voltage
Export the control signal for determining motor driving direction.In S830 is operated, when output control signal is to be used for positive drive
During the control signal of dynamic motor, the forward drive motor of drive circuit unit 203, and when output control signal is to be used for instead
To drive motor control signal when, the inverted driven motor of drive circuit unit 203.
Because rearview mirror of the device for drive motor according to one or more embodiments in vehicle is rolled over
Maintain to be supplied to the polarity of the voltage of device by using rectifier during folded and expansion, therefore can easily add various guarantors
Protection circuit and additional function, and the controller of device can be readily formed by using simple integrated circuit.
In addition, present inventive concept is also implemented as the computer-readable code on computer readable recording medium storing program for performing.Calculate
Machine readable medium recording program performing is any data storage device that can store the data that can be read by computer system.It is computer-readable
The example of recording medium includes magnetic storage medium (for example, read-only storage (ROM), floppy disk or hard disk) and optical record medium
(for example, compact disc-ROM (CD-ROM) or Digital versatile disc (DVD)).Computer readable recording medium storing program for performing can also divide
Cloth is in the computer system that network couples so that computer-readable code is stored and performed in a distributed way.
Although specifically illustrating and describing idea of the invention by reference to the illustrative embodiments of the present invention, this
Field ordinarily skilled artisan will understand that, do not departing from the spirit and scope for the present inventive concept being defined by the following claims
In the case of, various changes can be carried out to the present invention in form and details.
Claims (10)
1. a kind of device for driving the motor for folded vehicle rearview mirror, described device include：
Direction-determining unit, the direction-determining unit are configured to export electronic for determining based on the polarity of input voltage
The control signal of machine driving direction；
Drive circuit unit, the drive circuit unit are configured to drive the motor based on the control signal；
The motor, the motor are driven by the drive circuit unit；And
Rectifier, the rectifier are configured to by carrying out rectification to the input voltage to be carried to the drive circuit unit
For the power supply with constant polarity.
2. device according to claim 1, wherein, the direction-determining unit includes comparator, and the comparator has：
First input end, the first input end are applied in the input voltage with positive polarity or the input with negative polarity
Voltage；And second input, second input are applied in predetermined reference voltage.
3. device according to claim 2, wherein, the reference voltage be by the input voltage is carried out rectification and
The voltage of acquisition.
4. device according to claim 1, wherein, the direction-determining unit includes comparator, the comparator by with
It is set to the non-inverting input terminal for allowing the input voltage with positive polarity to be applied to operational amplifier, it is allowed to by right
The voltage with positive polarity that the input voltage carries out rectification and obtained is applied to the anti-phase input of the operational amplifier
Terminal, and the voltage difference between the input of the reversed input terminal and the input of the non-inverting input terminal.
5. device according to claim 1, wherein, the drive circuit unit includes first switch device to the 4th switch
Device, the first switch device to the 4th switching device using from the control signal that the direction-determining unit exports as
Grid input signal, wherein, just (+) output end of the rectifier is connected to the first switch device and second switch device
Middle each colelctor electrode, the colelctor electrode of the 3rd switching device and the current output terminal rotated forward for the motor
It is connected to the emitter stage of the first switch device, the colelctor electrode of the 4th switching device and the reverse rotation for the motor
Current output terminal be connected to the emitter stage of the second switch device, and the emitter stage of the 3rd switching device and institute
The emitter stage for stating the 4th switching device is connected to negative (-) output end of the rectifier.
6. device according to claim 1, wherein, the drive circuit unit includes first switch device and second switch
Device, the first switch device and second switch device using from the control signal that the direction-determining unit exports as
Grid input signal, also, just (+) output end of wherein described rectifier is connected in the first diode and the second diode often
The anode of one, the negative electrode of first diode and the current output terminal rotated forward for the motor are connected to
The electric current of the colelctor electrode of the first switch device, the negative electrode of second diode and the reverse rotation for the motor
Lead-out terminal is connected to the colelctor electrode of the second switch device, and the emitter stage of the first switch device and described second
The emitter stage of switching device is connected to negative (-) output end of the rectifier.
7. device according to claim 1, wherein, the drive circuit unit includes first switch device and second switch
Device, the first switch device and second switch device using from the control signal that the direction-determining unit exports as
Grid input signal, also, just (+) output end of wherein described rectifier is connected to the first switch device and described second
The colelctor electrode of each in switching device, the anode of the first diode and the electric current rotated forward the output for the motor
Terminal is connected to the emitter stage of the first switch device, the anode of the second diode and the reverse rotation for the motor
Current output terminal be connected to the emitter stage of the second switch device, and the negative electrode of first diode and described
The negative electrode of two diodes is connected to negative (-) output end of the rectifier.
8. a kind of method for driving the motor for folded vehicle rearview mirror, methods described include：
By carrying out rectification to input voltage to provide the voltage with constant polarity to drive circuit unit；
Polarity based on the input voltage and export the control signal for determining motor driving direction；And
When the control signal is confirmed as positive control signal, motor described in forward drive, and when the control is believed
When number being confirmed as reverse control signal, motor described in reverse drive.
9. the method according to claim 11, wherein, by the way that first of the input voltage with positive polarity will be applied in
Input is compared to export the control signal with being applied in the second input of predetermined reference voltage.
10. according to the method for claim 9, wherein, the reference voltage is by carrying out rectification to the input voltage
And the voltage obtained.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2016-0104491 | 2016-08-17 | ||
| KR20160104491 | 2016-08-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107769638A true CN107769638A (en) | 2018-03-06 |
Family
ID=61264900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710110743.8A Pending CN107769638A (en) | 2016-08-17 | 2017-02-28 | Method and apparatus for drive motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107769638A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111416556A (en) * | 2020-04-09 | 2020-07-14 | 南京市谭慕半导体技术有限公司 | Motor driving circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005192269A (en) * | 2003-12-24 | 2005-07-14 | Matsushita Electric Ind Co Ltd | Power unit |
| JP2005191676A (en) * | 2003-12-24 | 2005-07-14 | Matsushita Electric Ind Co Ltd | Pulse width modulation system driving apparatus |
| CN102315819A (en) * | 2010-07-01 | 2012-01-11 | 发那科株式会社 | Spark coil cutting processor is used the moment motor drive |
| CN103053109A (en) * | 2010-09-07 | 2013-04-17 | 株式会社日立产机系统 | AC motor rotation direction detecting method and electric power conversion device for AC motor using same |
| CN103342114A (en) * | 2013-07-10 | 2013-10-09 | 宁波市富来电子科技有限公司 | Control system of rearview mirror folder |
-
2017
- 2017-02-28 CN CN201710110743.8A patent/CN107769638A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005192269A (en) * | 2003-12-24 | 2005-07-14 | Matsushita Electric Ind Co Ltd | Power unit |
| JP2005191676A (en) * | 2003-12-24 | 2005-07-14 | Matsushita Electric Ind Co Ltd | Pulse width modulation system driving apparatus |
| CN102315819A (en) * | 2010-07-01 | 2012-01-11 | 发那科株式会社 | Spark coil cutting processor is used the moment motor drive |
| CN103053109A (en) * | 2010-09-07 | 2013-04-17 | 株式会社日立产机系统 | AC motor rotation direction detecting method and electric power conversion device for AC motor using same |
| CN103342114A (en) * | 2013-07-10 | 2013-10-09 | 宁波市富来电子科技有限公司 | Control system of rearview mirror folder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111416556A (en) * | 2020-04-09 | 2020-07-14 | 南京市谭慕半导体技术有限公司 | Motor driving circuit |
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Application publication date: 20180306 |