CN109245628B - Motor driving method, motor driving apparatus, computer apparatus, and computer-readable storage medium - Google Patents
Motor driving method, motor driving apparatus, computer apparatus, and computer-readable storage medium Download PDFInfo
- Publication number
- CN109245628B CN109245628B CN201811117945.6A CN201811117945A CN109245628B CN 109245628 B CN109245628 B CN 109245628B CN 201811117945 A CN201811117945 A CN 201811117945A CN 109245628 B CN109245628 B CN 109245628B
- Authority
- CN
- China
- Prior art keywords
- motor
- electromotive force
- time point
- back electromotive
- duty ratio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- H02P6/08—Arrangements for controlling the speed or torque of a single motor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention is suitable for the technical field of motor driving, and provides a motor driving method, a motor driving device, a computer device and a computer readable storage medium, wherein the method comprises the following steps: acquiring a preset PWM duty ratio, and acquiring a detection time point of back electromotive force according to the PWM duty ratio; detecting the current back electromotive force when the detection time point of the back electromotive force is reached; and calculating the current position of the motor rotor according to the detected current back electromotive force and a preset calculation rule, and entering a closed loop state. According to the invention, the preset PWM duty ratio is obtained, and the detection time point of the back electromotive force is obtained according to the PWM duty ratio, so that the defect that the back electromotive force signal of the motor is submerged due to the interference of the on-off of the switching tube is avoided; when the PWM is at a low level, the counter electromotive force of the motor is very pure and has no interference, and the current position of the motor can be completely judged, so that the motor quickly enters a closed loop state, a closed loop is quickly realized, and the starting speed of the motor is improved.
Description
Technical Field
The invention belongs to the technical field of motor driving, and particularly relates to a motor driving method, a motor driving device, a computer device and a computer readable storage medium.
Background
Brushless motor among the prior art is when starting, brushless motor of many types all need debug for a long time, especially the brushless motor that the number of pole pairs is less, usually need debug for a long time just can realize stable start, because brushless motor's back electromotive force is weaker, consequently need drag brushless motor to certain speed earlier before starting, then, just can accurately detect the position of brushless motor rotor, and then carry out the commutation operation, just can start brushless motor steadily, however the required start-up time of such starting mode all can be longer, and because the burr that the MOS pipe opened and shut off influences, often make brushless motor mistake in order to detect corresponding stable back electromotive force, therefore the probability that leads to the start failure is higher. Therefore, under the condition that the requirement on the starting speed of the brushless motor is high, the brushless motor starting scheme in the prior art is difficult to realize quick starting. In summary, how to realize the fast start of the brushless motor is a technical problem to be solved urgently in the technical field.
Disclosure of Invention
The embodiment of the invention provides a motor driving method, aiming at solving the problem of quick starting of a brushless motor.
The embodiment of the invention is realized in such a way that a motor driving method comprises the following steps:
acquiring a preset PWM duty ratio, and acquiring a detection time point of back electromotive force according to the PWM duty ratio;
detecting the current back electromotive force when the detection time point of the back electromotive force is reached;
and calculating the current position of the motor rotor according to the detected current back electromotive force and a preset calculation rule, and entering a closed loop state.
The embodiment of the present invention is achieved as such, and a motor drive apparatus, the apparatus including:
the detection time point acquisition unit is used for acquiring a preset PWM duty ratio and acquiring the detection time point of the back electromotive force according to the PWM duty ratio;
the detection unit is used for detecting the current counter electromotive force when the detection time point of the counter electromotive force is reached;
and the motor starting unit is used for acquiring the current position of the motor rotor according to the detected current back electromotive force and entering a closed loop state.
An embodiment of the present invention further provides a computer device, where the computer device includes a processor, and the processor is configured to implement the steps of the motor driving method according to any one of the above items when executing a computer program stored in a memory.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is characterized in that: the computer program, when executed by a processor, implements the steps of any of the motor drive methods described above.
According to the motor driving method provided by the embodiment of the invention, the preset PWM duty ratio is obtained, and the detection time point of the counter electromotive force is obtained according to the PWM duty ratio, so that the defect that the counter electromotive force signal of the motor is submerged due to the interference of the on and off of the switching tube is avoided; detecting the current back electromotive force when the detection time point of the back electromotive force is reached; and calculating the current position of the motor rotor according to the detected current back electromotive force and a preset calculation rule, and entering a closed loop state. When the PWM is at a low level, the counter electromotive force of the motor is very pure and has no interference, and the current position of the motor can be completely judged, so that the motor can quickly enter a closed loop state.
Drawings
Fig. 1 is a flowchart of a motor driving method according to an embodiment of the present invention;
fig. 2 is a flowchart of a motor driving method according to a second embodiment of the present invention;
fig. 3 is a flowchart of a motor driving method according to a third embodiment of the present invention;
fig. 4 is a flowchart of a motor driving method according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a motor driving device according to a fifth embodiment of the present invention;
fig. 6 is a schematic structural diagram of a motor driving device according to a sixth embodiment of the present invention;
fig. 7 is a schematic structural diagram of a start position determining unit according to a seventh embodiment of the present invention;
fig. 8 is a schematic structural diagram of a detection time point obtaining unit according to a seventh embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the invention provides a motor driving method, which comprises the following steps: acquiring a preset PWM duty ratio, and acquiring a detection time point of back electromotive force according to the PWM duty ratio; detecting the current back electromotive force when the detection time point of the back electromotive force is reached; and calculating the current position of the motor rotor according to the detected current back electromotive force and a preset calculation rule, and entering a closed loop state. The current position of the motor rotor is determined according to the motor back electromotive force signals collected when the PWM is at a low level, the defect that the back electromotive force signals of the motor are submerged due to the interference of the on and off of the switching tube can be overcome, the motor is enabled to change phases according to the determined position of the motor rotor, the motor drive is realized, and the motor is enabled to rapidly enter a closed loop state.
Example one
An embodiment of the present invention provides a motor driving method, as shown in fig. 1, the method includes:
s101, acquiring a preset PWM duty ratio, and acquiring a detection time point of back electromotive force according to the PWM duty ratio;
s102, detecting the current counter electromotive force when the counter electromotive force detection time point is reached;
and S103, acquiring the current position of the motor rotor according to the detected current back electromotive force, and entering a closed loop state.
Because the back electromotive force is very weak when the speed of the motor is low, the interference of the on and off of the switch tube can submerge the back electromotive force signal of the motor, and when the switch tube is completely closed (PWM low level is that the switch tube is completely closed), the back electromotive force of the motor is very pure without interference, and the current position of the motor can be completely judged. Therefore, in the embodiment of the invention, when the motor is just started, after the preset PWM duty ratio is obtained, the preset PWM duty ratio is introduced into any phase of the motor, the detection time point of the counter electromotive force (the time point of the low level of the duty ratio can be obtained according to the output PWM duty ratio) is obtained according to the PWM duty ratio, when the detection time point of the counter electromotive force is reached, the current counter electromotive force is detected, namely, the counter electromotive force signal of the motor in the PWM low level period is collected, if the counter electromotive force signal capable of determining the position of the rotor of the motor is collected, the phase is changed, otherwise, the low level of the next PWM period is continuously detected for collection. In order to prevent the phase being passed being the position of the motor rotor, if a valid back emf signal has not been detected for several PWM periods, a switch to the next phase is forced and detection continues.
In the embodiment of the invention, the current position of the motor rotor is determined according to the motor counter electromotive force signal acquired when the PWM is at the low level, the defect that the counter electromotive force signal of the motor is submerged due to the interference of the on and off of the switching tube can be overcome, the motor is further subjected to phase change according to the determined position of the motor rotor, the motor drive is realized, and the motor is enabled to rapidly enter a closed loop state. The method is suitable for various BLDC motors, improves the processes of dragging, open-loop acceleration and closed-loop of the motor in the prior art, quickly realizes closed-loop and improves the starting speed of the motor.
Example two
An embodiment of the present invention provides a motor driving method, as shown in fig. 2, the method includes:
s201, determining the initial position of a motor rotor;
s202, acquiring a preset PWM duty ratio, and acquiring a detection time point of back electromotive force according to the PWM duty ratio;
s203, detecting the current counter electromotive force when the counter electromotive force detection time point is reached;
and S204, acquiring the current position of the motor rotor according to the detected current back electromotive force, and entering a closed loop state.
In the embodiment of the invention, because the motor can be given a larger starting force during the first dragging, on the basis of the method in the first embodiment, the step of determining the initial position of the motor rotor is additionally arranged, so that the motor can enter a closed loop state more quickly.
EXAMPLE III
An embodiment of the present invention provides a motor driving method, as shown in fig. 3, the step S201 of determining an initial position of a motor rotor includes:
s301, acquiring currents of sampling points of each phase of the motor;
s302, determining the initial position of the motor rotor according to the magnitude of the current of the sampling point;
in the embodiment of the invention, 6 groups of pulses AC, BC, BA, AB, BC and CA are injected into each group according to the 6-state of the motor. And generating current while injecting the pulse, respectively collecting the current of sampling points of each phase of the motor, and comparing the currents, wherein the phase with the maximum current is the initial position of the motor rotor.
Wherein the sampling point is the position where the current of each phase is maximum.
In the embodiment of the invention, as the motor can be given a larger starting force during the first dragging, the initial position of the motor rotor is determined according to the magnitude of the acquired current of the sampling point of each phase, so that the motor can enter a closed loop state more quickly, and the maximum current is the position of the rotor; in addition, during normal operation, in order to prevent accidents, time-out commutation can be added, and if the back electromotive force valid signal is not detected for a preset time, the system is restarted.
Example four
An embodiment of the present invention provides a motor driving method, as shown in fig. 4,
s401, acquiring a preset PWM duty ratio, and determining a detection time point of back electromotive force according to a central point of a low level area of PWM when the PWM duty ratio is lower than a preset threshold value;
s402, detecting the current back electromotive force when the detection time point of the back electromotive force is reached;
and S403, calculating the current position of the motor rotor according to the detected current back electromotive force and a preset calculation rule, and entering a closed loop state.
In the embodiment of the invention, after the preset PWM duty ratio is obtained when the motor is just started, the preset PWM duty ratio is input into any phase of the motor, and when the PWM duty ratio is lower than the preset threshold value (which can be set to be 50%), the central point of the low level area of the PWM is used as a detection point, so that the condition that the back electromotive force signal of the motor is submerged due to the interference of the on-off of the switching tube is effectively avoided. The embodiment of the invention adopts the current sampling points of an inductance method, the current difference of different phases is obvious, namely, the current of the maximum point is timely and accurately acquired by using a software triggering mode, and the central point of a low level area is acquired under the condition of very low duty ratio, so that the signal interference caused by switch oscillation is effectively avoided.
The motor driving method provided by the embodiment of the invention is suitable for various BLDC motors, improves the processes of dragging, open-loop acceleration and closed-loop of the motor in the prior art, quickly realizes closed-loop and improves the starting speed of the motor. After the motor is just started and the preset PWM duty ratio is obtained, the preset PWM duty ratio is input into any phase of the motor, when the PWM duty ratio is lower than the preset threshold value, the detection time point of the counter electromotive force is determined according to the central point of the low level area of the PWM, the condition that the counter electromotive force signal of the motor is submerged due to the interference of the on and off of a switching tube is effectively avoided, the motor is further subjected to phase change according to the determined position of a motor rotor, the motor is driven, and the motor enters a closed loop state. The step of determining the starting position of the rotor of the motor may cause the motor to enter the closed loop state more quickly. Specifically, the initial position of the motor rotor is determined according to the magnitude of the acquired current of the sampling point of each phase, so that the motor can enter a closed loop state more quickly. In addition, accidents in the normal operation process can be prevented by adding overtime commutation, and if the back electromotive force effective signal is not detected for a preset time, the system is restarted. When the PWM duty ratio is lower than the preset threshold value, the central point of the low level area of the PWM is used as a detection point, and the condition that the back electromotive force signal of the motor is submerged by the interference of the on-off of the switching tube is effectively avoided.
EXAMPLE five
An embodiment of the present invention provides a motor driving apparatus 500, as shown in fig. 5, where the apparatus 500 includes:
a detection time point obtaining unit 51, configured to obtain a preset PWM duty ratio, and obtain a detection time point of a back electromotive force according to the PWM duty ratio;
a detection unit 52 for detecting the present counter electromotive force when a detection time point of the counter electromotive force is reached;
and the motor starting unit 53 is configured to obtain a current position of the motor rotor according to the detected current back electromotive force, and enter a closed loop state.
Because the back electromotive force is very weak when the speed of the motor is low, the interference of the on and off of the switch tube can submerge the back electromotive force signal of the motor, and when the switch tube is completely closed (PWM low level is that the switch tube is completely closed), the back electromotive force of the motor is very pure without interference, and the current position of the motor can be completely judged. Therefore, in the embodiment of the invention, when the motor is just started, after the preset PWM duty ratio is obtained, the preset PWM duty ratio is introduced into any phase of the motor, the detection time point of the counter electromotive force (the time point of the low level of the duty ratio can be obtained according to the output PWM duty ratio) is obtained according to the PWM duty ratio, when the detection time point of the counter electromotive force is reached, the current counter electromotive force is detected, namely, the counter electromotive force signal of the motor in the PWM low level period is collected, if the counter electromotive force signal capable of determining the position of the rotor of the motor is collected, the phase is changed, otherwise, the low level of the next PWM period is continuously detected for collection. In order to prevent the phase being passed being the position of the motor rotor, if a valid back emf signal has not been detected for several PWM periods, a switch to the next phase is forced and detection continues.
In the embodiment of the invention, the current position of the motor rotor is determined according to the motor counter electromotive force signal acquired when the PWM is at the low level, the defect that the counter electromotive force signal of the motor is submerged due to the interference of the on and off of the switching tube can be overcome, the motor is further subjected to phase change according to the determined position of the motor rotor, the motor drive is realized, and the motor is enabled to rapidly enter a closed loop state. The method is suitable for various BLDC motors, improves the processes of dragging, open-loop acceleration and closed-loop of the motor in the prior art, quickly realizes closed-loop and improves the starting speed of the motor.
EXAMPLE six
An embodiment of the present invention provides a motor driving apparatus 600, as shown in fig. 6, where the apparatus 600 includes:
a starting position determining unit 54 for determining a starting position of the rotor of the electric machine.
A detection time point obtaining unit 51, configured to obtain a preset PWM duty ratio, and obtain a detection time point of a back electromotive force according to the PWM duty ratio;
a detection unit 52 for detecting the present counter electromotive force when a detection time point of the counter electromotive force is reached;
and the motor starting unit 53 is configured to obtain a current position of the motor rotor according to the detected current back electromotive force, and enter a closed loop state.
In the embodiment of the invention, because the motor can be given a larger starting force during the first dragging, on the basis of the method in the first embodiment, the step of determining the initial position of the motor rotor is additionally arranged, so that the motor can enter a closed loop state more quickly.
EXAMPLE seven
An embodiment of the present invention provides a starting position determining unit 54, as shown in fig. 7, where the starting position determining unit 54 includes:
a current value obtaining subunit 541 configured to obtain a current value of a sampling point of each phase of the motor;
and the starting position acquiring subunit 542 is configured to determine a starting position of the motor rotor according to the magnitude of the current value of the sampling point.
In the embodiment of the invention, 6 groups of pulses AC, BC, BA, AB, BC and CA are injected into each group according to the 6-state of the motor. And generating current while injecting the pulse, respectively collecting the current of sampling points of each phase of the motor, and comparing the currents, wherein the phase with the maximum current is the initial position of the motor rotor.
Wherein the sampling point is the position where the current of each phase is maximum.
In the embodiment of the invention, as the motor can be given a larger starting force during the first dragging, the initial position of the motor rotor is determined according to the magnitude of the acquired current of the sampling point of each phase, so that the motor can enter a closed loop state more quickly, and the maximum current is the position of the rotor; in addition, during normal operation, in order to prevent accidents, time-out commutation can be added, and if the back electromotive force valid signal is not detected for a preset time, the system is restarted.
Example eight
The embodiment of the present invention provides a structure of the detection time point obtaining unit 51, as shown in fig. 8, the detection time point obtaining unit 51 includes:
and a detection time point obtaining subunit 51, configured to obtain a preset PWM duty ratio, and when the PWM duty ratio is lower than a preset threshold, determine a detection time point of the back electromotive force according to a central point of a low level region of PWM.
In the embodiment of the invention, after the preset PWM duty ratio is obtained when the motor is just started, the preset PWM duty ratio is input into any phase of the motor, and when the PWM duty ratio is lower than the preset threshold value (which can be set to be 50%), the central point of the low level area of the PWM is used as a detection point, so that the condition that the back electromotive force signal of the motor is submerged due to the interference of the on-off of the switching tube is effectively avoided. The embodiment of the invention adopts the current sampling points of an inductance method, the current difference of different phases is obvious, namely, the current of the maximum point is timely and accurately acquired by using a software triggering mode, and the central point of a low level area is acquired under the condition of very low duty ratio, so that the signal interference caused by switch oscillation is effectively avoided.
The motor driving method provided by the embodiment of the invention is suitable for various BLDC motors, improves the processes of dragging, open-loop acceleration and closed-loop of the motor in the prior art, quickly realizes closed-loop and improves the starting speed of the motor. After the motor is just started and the preset PWM duty ratio is obtained, the preset PWM duty ratio is input into any phase of the motor, when the PWM duty ratio is lower than the preset threshold value, the detection time point of the counter electromotive force is determined according to the central point of the low level area of the PWM, the condition that the counter electromotive force signal of the motor is submerged due to the interference of the on and off of a switching tube is effectively avoided, the motor is further subjected to phase change according to the determined position of a motor rotor, the motor is driven, and the motor enters a closed loop state. And determining the initial position of the motor rotor, namely enabling the motor to enter a closed loop state more quickly, and specifically determining the initial position of the motor rotor according to the magnitude of the acquired current of the sampling point of each phase, so that the motor can enter the closed loop state more quickly. In addition, accidents in the normal operation process can be prevented by adding overtime commutation, and if the back electromotive force effective signal is not detected for a preset time, the system is restarted. When the PWM duty ratio is lower than the preset threshold value, the central point of the low level area of the PWM is used as a detection point, and the condition that the back electromotive force signal of the motor is submerged by the interference of the on-off of the switching tube is effectively avoided.
Embodiments of the present invention provide a computer apparatus, which includes a processor, and the processor is configured to implement the steps of the motor driving method provided in each of the above method embodiments when executing a computer program stored in a memory.
Illustratively, a computer program can be partitioned into one or more modules, which are stored in memory and executed by a processor to implement the present invention. One or more of the modules may be a sequence of computer program instruction segments for describing the execution of a computer program in a computer device that is capable of performing certain functions. For example, the computer program may be divided into the motor driving method steps provided by the various method embodiments described above.
Those skilled in the art will appreciate that the above description of a computer apparatus is by way of example only and is not intended to be limiting of computer apparatus, and that the apparatus may include more or less components than those described, or some of the components may be combined, or different components may be included, such as input output devices, network access devices, buses, etc.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like which is the control center for the computer device and which connects the various parts of the overall computer device using various interfaces and lines.
The memory may be used to store the computer programs and/or modules, and the processor may implement various functions of the computer device by running or executing the computer programs and/or modules stored in the memory and invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
The modules/units integrated by the computer device may be stored in a computer-readable storage medium if they are implemented in the form of software functional units and sold or used as separate products. Based on such understanding, all or part of the processes in the method according to the above embodiments may be implemented by a computer program, which may be stored in a computer readable storage medium, and when the computer program is executed by a processor, the steps of the embodiments of the car wash effect display method may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, electrical signals, software distribution medium, and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A motor driving method, characterized in that the method comprises:
when a motor is just started, acquiring a preset PWM duty ratio, acquiring a time point of a low level of PWM according to the PWM duty ratio, and taking the time point of the low level of the PWM as a detection time point of back electromotive force;
detecting the current back electromotive force when the detection time point of the back electromotive force is reached;
and acquiring the current position of the motor rotor according to the detected current back electromotive force, and entering a closed loop state.
2. The motor driving method according to claim 1, wherein the obtaining of the preset PWM duty and the obtaining of the detection time point of the back electromotive force according to the PWM duty further comprise:
determining a starting position of the motor rotor.
3. The motor driving method of claim 2, wherein said determining a starting position of a rotor of the motor comprises:
acquiring current values of sampling points of each phase of the motor;
and determining the initial position of the motor rotor according to the magnitude of the current value of the sampling point.
4. The motor driving method of claim 1, wherein the obtaining of the detection time point of the back electromotive force according to the PWM duty ratio comprises:
and when the PWM duty ratio is lower than a preset threshold value, determining the detection time point of the back electromotive force according to the central point of the low level area of the PWM.
5. A motor drive apparatus, characterized in that the apparatus comprises:
the detection time point acquisition unit is used for acquiring a preset PWM duty ratio when a motor is just started, acquiring a time point of a low level of the PWM according to the PWM duty ratio, and taking the time point of the low level of the PWM as a detection time point of back electromotive force;
the detection unit is used for detecting the current counter electromotive force when the detection time point of the counter electromotive force is reached;
and the motor starting unit is used for acquiring the current position of the motor rotor according to the detected current back electromotive force and entering a closed loop state.
6. The motor drive of claim 5, wherein said device further comprises:
a starting position determination unit for determining a starting position of the motor rotor.
7. The motor drive device according to claim 6, wherein the home position determining unit includes:
the current value acquisition subunit is used for acquiring the current values of sampling points of all phases of the motor;
and the initial position obtaining subunit is used for determining the initial position of the motor rotor according to the magnitude of the current value of the sampling point.
8. The motor drive device according to claim 5, wherein the detection time point acquisition unit includes:
and the detection time point acquisition subunit is used for determining the detection time point of the back electromotive force according to the central point of the low level area of the PWM when the PWM duty ratio is lower than a preset threshold value.
9. A computer arrangement, characterized in that the computer arrangement comprises a processor for implementing the steps of the motor driving method according to any one of claims 1-4 when executing a computer program stored in a memory.
10. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program realizes the steps of the motor driving method according to any one of claims 1 to 4 when being executed by a processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811117945.6A CN109245628B (en) | 2018-09-25 | 2018-09-25 | Motor driving method, motor driving apparatus, computer apparatus, and computer-readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811117945.6A CN109245628B (en) | 2018-09-25 | 2018-09-25 | Motor driving method, motor driving apparatus, computer apparatus, and computer-readable storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109245628A CN109245628A (en) | 2019-01-18 |
| CN109245628B true CN109245628B (en) | 2021-10-01 |
Family
ID=65056824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811117945.6A Active CN109245628B (en) | 2018-09-25 | 2018-09-25 | Motor driving method, motor driving apparatus, computer apparatus, and computer-readable storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109245628B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111900901B (en) * | 2020-08-06 | 2021-10-22 | 珠海格力电器股份有限公司 | Start control method and device for oil pump motor, automobile, medium and processor |
| CN113945846A (en) * | 2021-09-08 | 2022-01-18 | 深圳拓邦股份有限公司 | Motor state judgment method and motor driving device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6307336B1 (en) * | 1999-09-27 | 2001-10-23 | Mts Systems Corporation | Closed loop control of PWM duty cycle |
| CN102969955A (en) * | 2011-08-29 | 2013-03-13 | 天津航天鑫茂稀土机电科技有限公司 | Non-position detection of permanent magnetic direct-current brushless double-rotor motor |
| CN103580563A (en) * | 2013-10-30 | 2014-02-12 | 航天科工海鹰集团有限公司 | Method for controlling brushless direct current motor |
| CN104779845A (en) * | 2015-03-19 | 2015-07-15 | 四川长虹电器股份有限公司 | Position and rotating speed detection method of permanent-magnet brushless direct current motor |
| CN105186945A (en) * | 2015-08-12 | 2015-12-23 | 周海波 | Sensorless brushless direct-current motor drive chip and sensorless brushless direct-current motor drive system |
-
2018
- 2018-09-25 CN CN201811117945.6A patent/CN109245628B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6307336B1 (en) * | 1999-09-27 | 2001-10-23 | Mts Systems Corporation | Closed loop control of PWM duty cycle |
| CN102969955A (en) * | 2011-08-29 | 2013-03-13 | 天津航天鑫茂稀土机电科技有限公司 | Non-position detection of permanent magnetic direct-current brushless double-rotor motor |
| CN103580563A (en) * | 2013-10-30 | 2014-02-12 | 航天科工海鹰集团有限公司 | Method for controlling brushless direct current motor |
| CN104779845A (en) * | 2015-03-19 | 2015-07-15 | 四川长虹电器股份有限公司 | Position and rotating speed detection method of permanent-magnet brushless direct current motor |
| CN105186945A (en) * | 2015-08-12 | 2015-12-23 | 周海波 | Sensorless brushless direct-current motor drive chip and sensorless brushless direct-current motor drive system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109245628A (en) | 2019-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109245628B (en) | Motor driving method, motor driving apparatus, computer apparatus, and computer-readable storage medium | |
| CN105450093A (en) | Direct current motor phase current sampling method and electronic equipment | |
| CN112332721B (en) | Control method, control device and control circuit of direct current motor | |
| CN108574432B (en) | Phase sequence detection method and detection device for direct current motor and air conditioner | |
| CN104378030A (en) | Permanent magnet brushless motor sensorless starting method | |
| CN113131805B (en) | Control device and method of brushless direct current motor | |
| US9112440B2 (en) | Sensorless dynamic driving method and system for single phase alternating current permanent magnet motor | |
| CN110880897A (en) | Motor control method and device and driving device | |
| CN113922713A (en) | BLDC motor starting method with salient polarity, control device and electric tool | |
| CN113162478B (en) | Motor starting parameter testing method and system, terminal equipment and storage medium | |
| CN112595984B (en) | Lithium battery voltage detection method and device, electrical equipment and storage medium | |
| CN111404429B (en) | Vehicle, motor control method and device thereof and computer readable storage medium | |
| CN111478629B (en) | Position detection method and device of permanent magnet brushless direct current motor and electrical equipment | |
| CN112072968B (en) | Control method and device of brushless direct current motor, terminal equipment and storage medium | |
| CN114268248A (en) | Method for monitoring back electromotive force voltage of ultra-high-speed BLDC motor | |
| CN112366990B (en) | Hall self-positioning method, device, equipment and system | |
| CN110492824B (en) | Low-speed control method and device for switched reluctance motor, storage medium for device, electronic equipment and switched reluctance motor | |
| CN110661455B (en) | Sensorless control device and control method for brushless direct current motor | |
| CN109256990B (en) | Motor control method and device | |
| CN111953244A (en) | Belt speed re-throwing method, system and device of permanent magnet synchronous motor | |
| US20200144953A1 (en) | Brushless dc motor with automatic record of abnormal operation and method therefor | |
| CN107370425A (en) | The control method and device of motor | |
| KR101684807B1 (en) | Lead Angle Controller | |
| CN115208257B (en) | Permanent magnet synchronous motor pole pair number detection system and method and electronic equipment | |
| CN118282280A (en) | Motor forward and reverse wind starting angle acquisition device and motor forward and reverse wind starting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |