CN106936365A - The control method of motor in snowplough - Google Patents
The control method of motor in snowplough Download PDFInfo
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- CN106936365A CN106936365A CN201610756912.0A CN201610756912A CN106936365A CN 106936365 A CN106936365 A CN 106936365A CN 201610756912 A CN201610756912 A CN 201610756912A CN 106936365 A CN106936365 A CN 106936365A
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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
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
- H02P27/085—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation wherein the PWM mode is adapted on the running conditions of the motor, e.g. the switching frequency
Abstract
The invention discloses the control method of motor in snowplough, including：Detect the rotating speed of motor；Judge the rotating speed of motor whether less than default first tachometer value；If the rotating speed of motor is less than default first tachometer value, reduce by the electric current of motor.The present invention is advantageous in that：For the difference of motor speed during sweeping away snow, regulation motor current value makes it be maintained within a certain range, so as to effectively overcome influence of the positive closing mode to electrical machinery life, improves service behaviour of the snowplough under thickness snow, case of heavy load.
Description
Technical field
The present invention relates to a kind of motor control method, and in particular to the control method of motor in a kind of snowplough.
Background technology
Snowplough clears up a kind of common tool of road snow as winter, by gradually popularization and application.
American documentation literature US6170179B1 discloses a kind of snowplough, as shown in figure 1, being provided with motor in its body（Not
Show）, the battery component powered to motor and controlled motor work control circuit（It is not shown）, battery component is by controlling electricity
Road electrically connects with motor, and control circuit controlled motor drives snow sweeping roller 12 (wheel) to rotate and then realizes function of sweeping away snow.
When snow sweeping roller 12 is subject to resistance smaller, motor can be relatively easy to drive snow sweeping roller 12 to rotate；Relative, in product
When snow is thicker, the resistance that snow sweeping roller 12 is subject to is larger, motor heavy load, especially when snow sweeping roller 12 is by stall, electricity
Machine is not controlled in existing snowplough often in the precarious position of overload according to the actual conditions of snow sweeping roller 12
The scheme of motor, considerably increases the possibility of motor damage.
Often judge whether motor is in the state of safe handling according to electrical parameter in the prior art, in order to protect motor,
Being typically designed can be arranged on safer scope by the threshold value of electrical parameter, even if so occurring in motor of short duration more than threshold value
During situation, for protection motor also can directly close motor, so, when user clears up thicker accumulated snow using snowplough,
If not grasping the speed for promoting snowplough, the phenomenon for stopping protection will being frequently occurred, reduce operating efficiency, while
Also have impact on Consumer's Experience.
The content of the invention
The control method of motor in a kind of snowplough, including：Detect the rotating speed of motor；Judge whether the rotating speed of motor is less than
Default first tachometer value；If the rotating speed of motor is less than default first tachometer value, reduce by the electric current of motor.
Further, also include：Judge the rotating speed of motor whether less than default second tachometer value；If the rotating speed of motor is less than
Default second tachometer value, then make the electric current of motor maintain the first current value.
Further, also include：Judge the rotating speed of motor whether less than or equal to default 3rd tachometer value；If the rotating speed of motor
Less than or equal to default 3rd tachometer value, then the electric current of motor is set to maintain the second current value.
Further, also include：Judge the rotating speed of motor whether less than default second tachometer value；If the rotating speed of motor is less than
Default second tachometer value, then make the electric current of motor maintain the first current value；Judge the rotating speed of motor whether less than or equal to pre-
If the 3rd tachometer value；If the rotating speed of motor is less than or equal to default 3rd tachometer value, the electric current of motor is set to maintain second
Current value；Wherein, the second tachometer value is more than the first tachometer value, and the first tachometer value is more than the 3rd tachometer value；First current value is more than
Second current value.
Further, the span of the second current value is that the first current value more than 0.2 times is less than the first current value.
Further, the 3rd tachometer value is that 0.2 is less than or equal to more than 0 with the span of the ratio of empty load of motor rotating speed.
The control method of motor in another snowplough, including：Detect the rotating speed of motor；Judge whether the rotating speed of motor is small
In default first tachometer value；If the rotating speed of motor is less than default first tachometer value, the signal for reducing motor is accounted for
Sky ratio.
Further, also include：Judge the rotating speed of motor whether less than default second tachometer value；If the rotating speed of motor is less than
Default second tachometer value, the then dutycycle for reducing the signal of motor makes the electric current of motor maintain the first current value.
Further, also include：Judge the rotating speed of motor whether less than default 3rd tachometer value；If the rotating speed of motor is less than
Default 3rd tachometer value, the then dutycycle for reducing the signal of motor makes the electric current of motor maintain the second current value.
Further, also include：Judge the rotating speed of motor whether less than default second tachometer value；If the rotating speed of motor is less than
Default second tachometer value, the then dutycycle for reducing the signal of motor makes the electric current of motor maintain the first current value；Sentence
Whether the rotating speed of power machine is less than default 3rd tachometer value；If the rotating speed of motor is less than default 3rd tachometer value, reduce
The dutycycle of the signal of motor makes the electric current of motor maintain the second current value；Wherein, the second tachometer value is more than first turn
Speed value, the first tachometer value is more than the 3rd tachometer value；First current value is more than the second current value.
Further, the span of the second current value is that the first current value more than 0.2 times is less than the first current value.
Further, the 3rd tachometer value is that 0.2 is less than or equal to more than 0 with the span of the ratio of empty load of motor rotating speed.
The control method of motor in another snowplough, including：Detect the rotating speed of motor；Judge motor rotating speed whether etc.
In zero, if the rotating speed of motor is equal to zero, the electric current of motor is maintained in the second setting value.
Further, also include：Detect the working time of motor；When judging that whether the working time of motor is more than default work
Between；If the working time of motor is more than preset operating time, motor power-off.
Further, also include：Judge the rotating speed of motor whether less than default first tachometer value；If the rotating speed of motor is less than
Default first tachometer value, then reduce by the electric current of motor.
Further, judge the rotating speed of motor whether less than default second tachometer value；If the rotating speed of motor is less than default
Second tachometer value, then make the electric current of motor maintain the first setting value；First setting value is more than the second setting value.
Further, also include：Judge the rotating speed of motor whether less than or equal to default 3rd tachometer value；If the rotating speed of motor
Whether default 3rd tachometer value is less than or equal to, then the electric current of motor is maintained the second setting value.
Further, preset operating time is less than or equal to 3 seconds.
Further, the span of the second setting value is that the second setting value more than 0.2 times is less than the first setting value.
Further, the 3rd tachometer value is that 0.2 is less than more than 0 with the span of empty load of motor rotating speed ratio.
The present invention is advantageous in that：When motor is in overload danger, according to the actual conditions of snow sweeping roller to snowplough
In motor be controlled, reduce the possibility of motor damage.
When snowplough clears up thicker accumulated snow, using the control mode that the electric current of motor is maintained setting value, it is to avoid
The frequent stopping of motor starts, and preferable Consumer's Experience is brought while operating efficiency is improved.
Brief description of the drawings
Fig. 1 is a kind of snowplough structural representation disclosed in american documentation literature US6170179B1；
Fig. 2 is motor control schematic diagram in snowplough as one embodiment；
Fig. 3 is the driver circuit schematic diagram of motor；
Fig. 4 is the schematic flow sheet of one embodiment of the control method of motor in snowplough；
Fig. 5 is the schematic flow sheet of another embodiment of the control method of motor in snowplough；
Fig. 6 is the schematic flow sheet of another embodiment of the control method of motor in snowplough；
Fig. 7 is the schematic flow sheet of another embodiment of the control method of motor in snowplough；
Fig. 8 is the schematic flow sheet of another embodiment of the control method of motor in snowplough；
Fig. 9 is the schematic flow sheet of another embodiment of the control method of motor in snowplough；
Figure 10 is the pass of motor speed, electric current and torque when the present invention uses the motor of the snowplough of control method control shown in Fig. 9
System's figure.
Specific embodiment
Make specific introduction to the present invention below in conjunction with the drawings and specific embodiments.
Snowplough as shown in Figure 1, including housing 16, battery component, the motor positioned at enclosure interior and control circuit,
Method introduced below is applied to using controlling circuit to be controlled motor.Control circuit is obtained in that the rotating speed and stream of motor
Through the electric current of motor, and rotational speed regulation according to motor flows through the electric current of motor
The control principle block diagram of motor in snowplough as shown in Figure 2,
Detection circuit 22 is used to detect the rotating speed of motor 25 and flows through the electric current of motor 25.Specifically, detection circuit 22 is included suddenly
That sensor and current sensor, Hall sensor are used to detect the rotating speed of motor 25, and current sensor flows through electricity for detection
The electric current of machine 25.Certainly, the electric current for flowing through motor 25 also can be using other as inspection leakage resistance detection mode detects that the present invention is not
It is limited.
Control circuit 21 includes judge module 211, memory module 212 and signal generation module 213.Wherein, judge module
211 rotating speeds and current signal for being used to receive the motor for carrying out self-detection circuit 22,
Memory module 212 is used for the default motor speed value for storing.Such as, the second tachometer value of storage, the first tachometer value and the 3rd
Tachometer value.
Judge module 211 is used to compare the tachometer value of the rotating speed with the memory storage of memory module 212 of motor.Specifically, judging
The motor speed of the real-time detection of 211 receiving test circuit of module 22, and by the motor speed value of real-time detection and memory module 212
The default motor speed value of middle storage is compared, and generates corresponding judged result.
Signal generation module 213 is used to generate the control signal for driving pwm circuit 23.Specifically, signal generation module 213
According to the judged result pwm signal of the generation with corresponding dutycycle of judge module 211, driving is made by the PWM signals
Circuit 24 is worked and is rotated with motor 25.
As shown in figure 3, in using battery component as the snowplough of power supply, three-phase brushless dc motor can be used, its
Armature winding A, B, C of motor body constitute three-phase Y-connection, and drive circuit 24 includes six power tubes, six power tubes
Break-make is controlled by control circuit 21, for the output drive signal of motor 25, thus the rotor rotation of motor, outwards defeated
Go out power.Specifically, when needing AB to turn on, control circuit 21 exports the control signal of conducting power pipe Q1, Q4, now
Other power tubes keep cut-off, and the flowing through channel of electric current is：U+→ Q1 → loop A → coil B → Q4 → U-, rotor is every in space
60 degree of electric degree angles are turned over, control signal just occurs once to switch, and the turn-on sequence of power tube is followed successively by：Q1Q4, Q1Q2,
Q3Q2, Q3Q6, Q5Q6, Q5Q4。
The method being controlled to motor in snowplough is specifically introduced below in conjunction with Fig. 4 to Figure 10.
Shown in reference picture 4, as one of the implementation method of control method of motor in snowplough, comprise the steps：
S401. motor speed n is detected；
S402. judge the rotating speed n of motor whether less than the second tachometer value n2；
If S403. then maintaining the electric current I of motor in the first current value（Can be adjusted by adjusting the dutycycle of motor signal
Save by the electric current of motor）；
If S404. otherwise improving the drive signal dutycycle of motor, motor speed is reduced；
S405. judge motor speed whether less than the first tachometer value；
If S406. then reducing current of electric I；Specifically, until current of electric is reduced to the second current value；
If S407. otherwise improving the drive signal dutycycle of motor, motor speed is reduced, until the rotating speed of motor is less than the
One tachometer value.
Wherein, the second tachometer value is more than the first tachometer value, and the selection of the first tachometer value can be according to supplying cell in snowplough
The ratio between the difference of voltage and current of electric protection value and internal resistance of cell product and constant of the machine determine, the first current value I1Can be with
It is constant, maximum current that its value be able to can be born by battery discharge ability, motor, drive circuit can bear maximum current
Value and whole acc power are determined.
Shown in reference picture 5, as another embodiment of the control method of motor in snowplough, comprise the steps：
S501. the rotating speed of motor is detected；
S502. judge the rotating speed of motor whether less than the first tachometer value；
If S503. then reducing by the electric current of motor（Drive signal dutycycle reduction that can be by reducing motor passes through
The electric current of motor）；
If S504. otherwise motor speed can be reduced, until the rotating speed of motor by improving the drive signal dutycycle of motor
Less than the first tachometer value；
S505. judge the rotating speed of motor whether less than the 3rd tachometer value；
If current of electric then S506. is maintained into the second current value, now motor be in turn a stifled state, motor speed it is minimum or
It is zero；If otherwise returning to S504.
Wherein, the first tachometer value is more than the 3rd tachometer value；Second current value can be that steady state value, or an electric current are big
The value of small descending change.
Shown in reference picture 6, as another embodiment of the control method of motor in snowplough, following step is specifically included：
S601. the tachometer value of motor is detected；
S602. judge the tachometer value of motor whether less than the second tachometer value；
If S603. then maintaining the electric current of motor in the first current value, can be by adjusting the drive signal dutycycle of motor
It is the first current value to maintain by the electric current of motor；
If S604. otherwise improving the drive signal dutycycle of motor, until the rotating speed of motor is less than the second tachometer value；
S605. judge motor speed whether less than the first tachometer value；
If S606. then reducing current of electric（Can be reduced by motor by reducing the drive signal dutycycle of motor
Electric current）；
If S607. otherwise improving the drive signal dutycycle of motor, motor speed is reduced, until motor speed is less than first
Tachometer value；
S608. judge motor speed whether less than the 3rd tachometer value；
If current of electric then S609. is maintained into the second current value；If otherwise returning to S607.
Wherein, the second tachometer value is more than the first tachometer value, and the first tachometer value is more than the 3rd tachometer value；The selection of rotating speed can be according to
It is next with the ratio between constant of the machine with the difference of internal resistance of cell product true according to supplying cell voltage in snowplough and current of electric protection value
It is fixed.
First current value is more than the second current value.First current value can be it is constant, its value by battery discharge ability,
Maximum current that motor can bear, drive circuit can bear maximum current value and whole acc power determines that the second current value can
Being the value of steady state value, or the descending change of a size of current.
As a kind of possible implementation method, the span of the second current value be the first current value more than 0.2 times and
Less than the first current value, user pulls back and removes snowplough load when thicker accumulated snow is cleared up, and motor remains to continue to start.
As a kind of possible implementation method, the ratio between the second tachometer value and empty load of motor tachometer value more than 0.5 and less than etc.
In 0.8, the ratio between the first tachometer value and empty load of motor tachometer value less than or equal to 0.5 and more than 0.2, the 3rd tachometer value and empty load of motor
The ratio between tachometer value is more than zero less than or equal to 0.2, wherein, the no-load speed value of motor refers to maximum of the motor when being exported without torque
Tachometer value.
The control method of motor in another snowplough, including：Detect the rotating speed of the motor；Judge turning for the motor
Whether speed is equal to zero, if the rotating speed of the motor is equal to zero, the electric current of the motor is maintained the second setting value.Motor turns
When speed is zero, motor is in locked rotor condition, as a kind of implementation method, can be by adjusting PWM duty cycle so that electric current is maintained
Second setting value, user removes motor load, and function of sweeping away snow continues to start.
Shown in reference picture 7, as another embodiment of the control method of motor in above-mentioned snowplough, following steps are specifically included
Suddenly：
S701. the rotating speed of motor is detected；
S702. judge whether the rotating speed of motor is equal to zero,
If the electric current of motor then S703. is maintained into the second setting value；
If S704. otherwise improving drive signal dutycycle；
S705. the working time of motor is detected；
S706. judge the working time of motor whether more than preset operating time；
If S707. then leaving the motor off work, if otherwise returning to S703.Shown in reference picture 8, as the control of motor in snowplough
Another embodiment of method processed, specifically includes following step：
S801. the rotating speed of motor is detected；
S802. judge the rotating speed of motor whether less than the second tachometer value；
If S803. then maintaining the electric current of motor in the first setting value（Can be by adjusting the drive signal dutycycle of motor
The electric current by motor is maintained in the first setting value）；
If S804. otherwise improving the drive signal dutycycle of motor, until the rotating speed of motor is less than the second tachometer value；
S805. judge motor speed whether less than the first tachometer value；
If S806. then reducing current of electric（Can be reduced by motor by reducing the drive signal dutycycle of motor
Electric current）；
If S807. otherwise improving the drive signal dutycycle of motor, motor speed is reduced, until the rotating speed of motor is less than the
One tachometer value；
S808. judge motor speed whether less than the 3rd tachometer value；
If current of electric then S809. is maintained into the second setting value；If otherwise returning to S807, until motor speed is less than the 3rd
Tachometer value；
S810. motor speed be less than three tachometer values when the start recording motor working time；
S811. judge the motor working time whether more than preset operating time；
If S812. then motor stops or power-off restarting；If otherwise returning to S809.
Wherein, the second tachometer value is more than the first tachometer value, and the first tachometer value is more than the 3rd tachometer value；The selection of rotating speed can be according to
The ratio between difference and constant of the machine according to supplying cell voltage in snowplough and setting electric current value and internal resistance of cell product determine.The
One setting value is more than the second setting value.First setting value can be constant, and its value can be born by battery discharge ability, motor
Maximum current, drive circuit can bear maximum current value and whole acc power and determine that the second setting value can be steady state value,
It can also be the value of the descending change of a size of current.
As a kind of possible implementation method, the span of the second setting value be the first setting value more than 0.2 times and
Less than the first setting value, user pulls back and removes snowplough load when thicker accumulated snow is cleared up, and motor remains to continue to start.
As a kind of possible implementation method, the ratio between the second tachometer value and empty load of motor tachometer value more than 0.5 and less than etc.
In 0.8, the ratio between the first tachometer value and empty load of motor tachometer value less than or equal to 0.5 and more than 0.2, the 3rd tachometer value and empty load of motor
The ratio between tachometer value is more than zero less than or equal to 0.2, wherein, the no-load speed value of motor refers to maximum of the motor when being exported without torque
Tachometer value.
Used as a kind of possible implementation method, preset operating time is less than or equal to 3s, when motor is in the work of locked rotor condition
When time exceedes preset operating time, motor power-off is stopped, and can avoid motor for a long time in locked rotor condition excessive heating
It is burned.
Flow shown in reference picture 9, control method no-load speed with snowplough is n0Motor be controlled for
Example, it can specifically include：
S901. the rotating speed n of motor is detected；
S902. judge whether the rotating speed of motor meets n<0.8n0；
If S903. then maintaining the electric current of motor in I1（First current value or the first setting value）；
If S904. otherwise improving the drive signal dutycycle of motor；
S905. judge whether the rotating speed of motor meets n<0.5 n0；
If S906. then reducing the electric current I of motor；
If S907. otherwise improving the drive signal dutycycle of motor；
S908. judge whether the rotating speed of motor meets n<0.2n0；
If S909. then maintaining the electric current of motor in I2（Second current value or the second setting value）, go to step S11；
If S910. otherwise improving the drive signal dutycycle of motor；
S911. judge whether the rotating speed of motor meets n=0；
If S912. then recording motor working time t；
If S913. otherwise improving drive signal dutycycle；
S914. judge whether t meets t>t0（Preset operating time）If otherwise going to step S909；
If S915. then motor power-off, is stopped.
Used as possible implementation method, motor speed can directly be examined using other positions sensors such as Hall sensors
Survey, also can be by detecting the rotating speed of the snow sweeping roller that be connected with machine shaft or turning for other transmission mechanisms being connected with motor
Speed, using the rotating speed of the mode indirect detection motor of the gearratio between motor and transmission mechanism, or by detect other with
The related electric parameter of rotating speed of motor（Such as current of electric or electric moter voltage）The rotating speed of indirect detection motor.
Judge module in the control circuit of controlled motor, the motor speed that direct detection or indirect detection are obtained, with
After second tachometer value multilevel iudge of memory module memory storage, signal generation module exports corresponding drive signal and carries out pulsewidth tune
System（PWM）, can be changed by the electric current of motor by adjusting the drive signal dutycycle of motor, improve drive signal duty
Increase than the electric current then by motor, reduce drive signal dutycycle and then reduced by the electric current of motor.
Shown in reference picture 10, using the present embodiment control method control snowplough in motor when, the rotating speed and electricity of motor
Flow with the change curve of torque.The torque of motor increases with the increase of motor load, when snow sweeping roller 12 is subject to resistance smaller,
Motor load is smaller, and torque is smaller, and with the gradually increase of the resistance that snow sweeping roller 12 is subject to, the torque of motor gradually increases, electricity
The rotating speed of machine constantly reduces, and when the rotating speed that position sensor detects motor is less than the second tachometer value, regulation drive signal is accounted for
The empty electric current than maintaining motor, until position sensor detects the rotating speed of motor less than the first rotating speed, is adjusted in the first current value
The electric current of section drive signal dutycycle reduction motor until when the rotating speed that position sensor detects motor is less than three tachometer values,
Regulation drive signal dutycycle maintains the electric current of motor in the second current value.When it is zero to detect motor speed, motor is serious
Overload stall, now maintains the second setting value by the electric current of motor（That is the second current value）, and detect motor in locked rotor condition
Working time, if exceed preset operating time, motor power-off be stopped.This actual conditions according to snow sweeping roller 12 are controlled
The mode of motor, greatly reduces the possibility of motor damage, can also avoid the frequent stopping of motor from starting, and brings preferably
Consumer's Experience.
The process of current of electric regulation i.e. the process of PWM output signal change, by the dutycycle for adjusting pwm signal
Can adjust by the current value of motor.As a kind of optional implementation method, using PWM_ON modulation systems regulation motor electricity
Stream, i.e., in 120 degree of conductings are interval, 60 degree of Heng Tongs of each power tube, 60 degree use PWM afterwards.In the case of motor load,
PWM_ON modulation systems solve the problems, such as that upper and lower bridge MOS heatings are uneven.
Used as a kind of possible implementation method, because snowplough operating mode is severe, load current is big, in the market electricity high
Pressure, the switch of high current are difficult to meet demand, can provide bigger load electricity to snowplough by the way of Multi- Switch parallel connection
Stream.Meanwhile, this Multi- Switch parallel way, when can reduce switch on-state, the pressure drop caused because On-resistance is larger and hair
Thermal losses.
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way for above-described embodiment, it is all to be obtained by the way of equivalent or equivalent transformation
Technical scheme, all falls within protection scope of the present invention.
Claims (20)
1. in a kind of snowplough motor control method, including：
Detect the rotating speed of the motor；
Judge the rotating speed of the motor whether less than default first tachometer value；
If the rotating speed of the motor is less than default first tachometer value, reduce by the electric current of the motor.
2. in a kind of snowplough according to claim 1 motor control method, it is characterised in that
Also include：
Judge the rotating speed of the motor whether less than default second tachometer value；
If the rotating speed of the motor is less than default second tachometer value, the electric current of the motor is set to maintain the first current value.
3. in a kind of snowplough according to claim 1 motor control method, it is characterised in that
Also include：
Judge the rotating speed of the motor whether less than or equal to default 3rd tachometer value；
If the rotating speed of the motor is less than or equal to default 3rd tachometer value, the electric current of the motor is set to maintain the second electric current
Value.
4. in a kind of snowplough according to claim 1 motor control method, it is characterised in that
Also include：
Judge the rotating speed of the motor whether less than default second tachometer value；
If the rotating speed of the motor is less than default second tachometer value, the electric current of the motor is set to maintain the first current value；
Judge the rotating speed of the motor whether less than or equal to default 3rd tachometer value；
If the rotating speed of the motor is less than or equal to default 3rd tachometer value, the electric current of the motor is set to maintain the second electric current
Value；
Wherein,
Second tachometer value is more than first tachometer value, and first tachometer value is more than the 3rd tachometer value；
First current value is more than the second current value.
5. in a kind of snowplough according to Claims 1-4 any one motor control method, it is characterised in that
The span of second current value is that the first current value more than 0.2 times is less than the first current value.
6. in a kind of snowplough according to Claims 1-4 any one motor control method, it is characterised in that
3rd tachometer value is that 0.2 is less than or equal to more than 0 with the span of the ratio of the empty load of motor rotating speed.
7. in a kind of snowplough motor control method, including：
Detect the rotating speed of the motor；
Judge the rotating speed of the motor whether less than default first tachometer value；
If the rotating speed of the motor is less than default first tachometer value, the dutycycle of the signal for driving the motor is reduced.
8. in a kind of snowplough according to claim 7 motor control method, it is characterised in that
Also include：
Judge the rotating speed of the motor whether less than default second tachometer value；
If the rotating speed of the motor is less than default second tachometer value, the dutycycle for reducing the signal for driving the motor makes institute
The electric current for stating motor maintains the first current value.
9. in a kind of snowplough according to claim 7 motor control method, it is characterised in that
Also include：
Judge the rotating speed of the motor whether less than default 3rd tachometer value；
If the rotating speed of the motor is less than default 3rd tachometer value, the dutycycle for reducing the signal for driving the motor makes institute
The electric current for stating motor maintains the second current value.
10. in a kind of snowplough according to claim 7 motor control method, it is characterised in that
Also include：
Judge the rotating speed of the motor whether less than default second tachometer value；
If the rotating speed of the motor is less than default second tachometer value, the dutycycle for reducing the signal for driving the motor makes institute
The electric current for stating motor maintains the first current value；
Judge the rotating speed of the motor whether less than default 3rd tachometer value；
If the rotating speed of the motor is less than default 3rd tachometer value, the dutycycle for reducing the signal for driving the motor makes institute
The electric current for stating motor maintains the second current value；
Wherein,
Second tachometer value is more than first tachometer value, and first tachometer value is more than the 3rd tachometer value；
First current value is more than the second current value.
The control method of motor in a kind of 11. snowplough according to claim 7 to 10 any one, it is characterised in that
The span of second current value is that the first current value more than 0.2 times is less than the first current value.
The control method of motor in a kind of 12. snowplough according to claim 7 to 10 any one, it is characterised in that
3rd tachometer value is that 0.2 is less than or equal to more than 0 with the span of the ratio of the empty load of motor rotating speed.
The control method of motor in a kind of 13. snowploughs, including：
Detect the rotating speed of the motor；
Judge whether the rotating speed of the motor is equal to zero,
If the rotating speed of the motor is equal to zero, the electric current of the motor is maintained in the second setting value.
The control method of motor in a kind of 14. snowploughs according to claim 13, it is characterised in that also include：
Detect the working time of the motor；
Judge the working time of the motor whether more than preset operating time；
If the working time of the motor is more than preset operating time, the motor power-off.
The control method of motor in a kind of 15. snowploughs according to claim 13, it is characterised in that also include：
Judge the rotating speed of the motor whether less than default first tachometer value；
If the rotating speed of the motor is less than default first tachometer value, reduce by the electric current of the motor.
The control method of motor in a kind of 16. snowploughs according to claim 13, it is characterised in that
Judge the rotating speed of the motor whether less than default second tachometer value；
If the rotating speed of the motor is less than default second tachometer value, the electric current of the motor is set to maintain the first setting value；
First setting value is more than second setting value.
The control method of motor in a kind of 17. snowploughs according to claim 13, it is characterised in that also include：
Judge the rotating speed of the motor whether less than or equal to default 3rd tachometer value；
If whether the rotating speed of the motor is less than or equal to default 3rd tachometer value, the electric current of the motor is set to maintain second
Setting value.
The control method of motor in a kind of 18. snowplough according to claim 13 to 17 any one, it is characterised in that
The preset operating time is less than or equal to 3 seconds.
The control method of motor in a kind of 19. snowplough according to claim 13 to 17 any one, it is characterised in that
The span of second setting value is that the second setting value more than 0.2 times is less than the first setting value.
The control method of motor in a kind of 20. snowplough according to claim 13 to 17 any one, it is characterised in that
3rd tachometer value is that 0.2 is less than more than 0 with the span of the empty load of motor rotating speed ratio.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015110266383 | 2015-12-31 | ||
| CN201511026638 | 2015-12-31 |
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| CN106936365A true CN106936365A (en) | 2017-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610756912.0A Pending CN106936365A (en) | 2015-12-31 | 2016-08-26 | The control method of motor in snowplough |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107508509A (en) * | 2017-08-11 | 2017-12-22 | 常州机电职业技术学院 | Control method for brushless direct current motor and device and its low-speed heave-load control method |
| CN108490781A (en) * | 2018-03-21 | 2018-09-04 | 航天科工智能机器人有限责任公司 | Position closed loop feedback servo control method with self-locking performance transmission mechanism |
| CN109830939A (en) * | 2019-03-25 | 2019-05-31 | 江苏施依洛通风设备有限公司 | A kind of control method and system of rotor revolving speed |
| CN111483784A (en) * | 2019-01-28 | 2020-08-04 | 天下逻辑股份有限公司 | Safety type roller controller for logistics transmission system |
| CN111953267A (en) * | 2020-08-02 | 2020-11-17 | 珠海市一微半导体有限公司 | Locked rotor judging method and rotating speed control method of motor |
| CN114877461A (en) * | 2022-06-15 | 2022-08-09 | 中山大洋电机股份有限公司 | Control method of ventilation module, fresh air conditioner and fresh air conditioning device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107508509A (en) * | 2017-08-11 | 2017-12-22 | 常州机电职业技术学院 | Control method for brushless direct current motor and device and its low-speed heave-load control method |
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| CN108490781A (en) * | 2018-03-21 | 2018-09-04 | 航天科工智能机器人有限责任公司 | Position closed loop feedback servo control method with self-locking performance transmission mechanism |
| CN111483784A (en) * | 2019-01-28 | 2020-08-04 | 天下逻辑股份有限公司 | Safety type roller controller for logistics transmission system |
| CN111483784B (en) * | 2019-01-28 | 2021-11-19 | 天下逻辑股份有限公司 | Safety type roller controller for logistics transmission system |
| CN109830939A (en) * | 2019-03-25 | 2019-05-31 | 江苏施依洛通风设备有限公司 | A kind of control method and system of rotor revolving speed |
| CN111953267A (en) * | 2020-08-02 | 2020-11-17 | 珠海市一微半导体有限公司 | Locked rotor judging method and rotating speed control method of motor |
| CN114877461A (en) * | 2022-06-15 | 2022-08-09 | 中山大洋电机股份有限公司 | Control method of ventilation module, fresh air conditioner and fresh air conditioning device |
| CN114877461B (en) * | 2022-06-15 | 2024-03-15 | 中山大洋电机股份有限公司 | Control method of ventilation module, fresh air conditioner and fresh air conditioning device |
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Application publication date: 20170707 |