CN214756125U - Speed regulation control device and speed regulation system - Google Patents
Speed regulation control device and speed regulation system Download PDFInfo
- Publication number
- CN214756125U CN214756125U CN202121369325.9U CN202121369325U CN214756125U CN 214756125 U CN214756125 U CN 214756125U CN 202121369325 U CN202121369325 U CN 202121369325U CN 214756125 U CN214756125 U CN 214756125U
- Authority
- CN
- China
- Prior art keywords
- motor
- control
- control unit
- speed
- control device
- 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
Landscapes
- Control Of Electric Motors In General (AREA)
Abstract
The embodiment of the disclosure provides a speed regulation control device and a speed regulation system. The speed regulation control device comprises a communication control unit and at least one motor control unit; the communication control unit is used for receiving a control instruction of the upper computer and sending the control instruction to the at least one motor control unit; the at least one motor control unit is connected with the communication control unit and the at least one motor and is used for driving the at least one motor to start, stop and run according to the control instruction; the motor control unit is provided with a sensing control mode and a non-sensing control mode, the sensing control mode is adopted when the motor is started, and the non-sensing control mode is switched after the motor is successfully started. The embodiment of the disclosure improves the high reliability, the high safety and the high adaptability of the speed regulation control device in severe environment.
Description
Technical Field
The disclosure relates to the technical field of vehicle-mounted control, in particular to a speed regulation control device and a speed regulation system.
Background
With the development of vehicle electronics, more and more mechanical control structures on vehicles are replaced by electronic control devices. The speed regulation control device is a key component in the measurement and control system and is used for driving the execution mechanism to execute a preset action. However, in the field of measurement and control of special devices, the speed regulation control device needs to meet the harsh requirements of the measurement and control system under severe working environments, not only needs to have high reliability, high security and high safety, but also can adapt to various severe working environments, such as high and low temperature, rain, salt fog, vibration, damp and hot, and complex electromagnetic environments. The conventional speed regulation control device cannot meet the requirements, so that a speed regulation control device and a speed regulation control system which are high in reliability, safety and adaptability and adapt to work in a severe environment are needed.
SUMMERY OF THE UTILITY MODEL
The embodiment of the disclosure provides a speed regulation control device and a speed regulation system, which are used for improving the high reliability, the high safety and the high adaptability of a vehicle-mounted speed regulation mechanism in various severe environments.
In a first aspect, an embodiment of the present disclosure provides a speed regulation control device, including:
a communication control unit and at least one motor control unit;
the communication control unit is used for receiving a control instruction of the upper computer and sending the control instruction to the at least one motor control unit; the at least one motor control unit is connected with the communication control unit and the at least one motor and is used for driving the at least one motor to start, stop and run according to the control instruction;
the motor control unit is provided with a sensing control mode and a non-sensing control mode, the sensing control mode is adopted when the motor is started, and the non-sensing control mode is switched after the motor is successfully started.
In some embodiments, the communication control unit includes a main control module, a digital quantity input module and a CAN communication module, the digital quantity input module and the CAN communication module being respectively connected to the main control module; the CAN communication module is used for exchanging data with an upper computer and receiving a control instruction of the upper computer; the digital quantity input module is used for acquiring digital signals of the sensor and transmitting the digital signals to the main control module; the main control module is used for sending the digital signals of the sensors to the upper computer through the CAN communication module and sending the control instructions of the upper computer to the at least one motor control unit.
In some embodiments, the digital quantity input module includes an optical coupling isolation circuit unit for performing isolation acquisition on the digital signal of the sensor.
In some embodiments, the CAN communication module includes a CAN bus isolation unit and a lightning protection bidirectional composite protection unit.
In some embodiments, the motor control unit includes a microprocessor, a power control circuit, and a rotational speed detection circuit; the power control circuit is connected with the microprocessor and the motor and used for driving the motor to start, stop and run under the control of the microprocessor, and the rotating speed detection circuit is used for detecting a rotating speed signal of the motor and sending the rotating speed signal to the microprocessor.
In some embodiments, the microprocessor is further configured to collect a current signal output by the power control circuit, and perform dual-loop control of a current loop and a speed loop on the motor based on the current signal and the rotation speed signal.
In some embodiments, the rotation speed detection circuit calculates the rotation speed of the motor by acquiring the movement position of the motor rotor through a hall sensor in the inductive control mode; in the non-inductive control mode, the rotating speed of the motor is calculated by detecting the back electromotive force of the motor.
In some embodiments, the microprocessor uses the dual loop control to precisely control the starting torque and starting time of the motor.
In some embodiments, the microprocessor is further configured to perform over-current and under-voltage protection on the power control circuit.
In a second aspect, an embodiment of the present disclosure provides a speed control system, including:
an upper computer;
the speed regulation control device according to any one of the preceding embodiments is connected with the upper computer and at least one motor, and is used for receiving a control instruction of the upper computer and controlling the start, stop and operation of the at least one motor;
and the motor is used for driving at least one corresponding executing mechanism to execute actions under the control of the speed regulation control device.
According to the speed regulation control device and the speed regulation system disclosed by the embodiment of the invention, under the control instruction of the upper computer, the mode combining the inductive control mode and the non-inductive control mode is adopted for the motor control unit, so that the problems of electromagnetic interference and unsmooth starting existing in the speed regulation system are effectively solved, and the high reliability, high safety and high adaptability of the vehicle-mounted speed regulation mechanism in various severe environments are improved.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present disclosure, and it is also possible for those skilled in the art to obtain other drawings based on the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a speed regulation control device 100 according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of the communication control unit 110 in the speed regulation control device 100 according to the embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of the motor control unit 120 in the speed regulation control device 100 according to the embodiment of the present disclosure;
fig. 4A-4D are schematic structural diagrams of a housing of the speed control device 100 according to the embodiment of the disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described below in detail and completely with reference to the accompanying drawings in the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
In the present disclosure, it is to be understood that terms such as "including" or "having," etc., are intended to indicate the presence of the disclosed features, numbers, steps, behaviors, components, parts, or combinations thereof, and are not intended to preclude the possibility that one or more other features, numbers, steps, behaviors, components, parts, or combinations thereof may be present or added.
Fig. 1 is a schematic structural diagram of a speed control device 100 according to an embodiment of the present disclosure. As shown in fig. 1, a speed control device 100 according to an embodiment of the present disclosure includes: a communication control unit 110 and at least one motor control unit 120. Fig. 1 only schematically illustrates an embodiment of the first motor control unit 120-1 and the second motor control unit 120-2, however, it is clear to those skilled in the art that the embodiments of the present disclosure are not limited to this embodiment, and the number of the motor control units 120 may be increased or decreased according to the actual motor control needs.
The communication control unit 110 is configured to receive a control instruction of the upper computer 200, and send the control instruction to the at least one motor control unit 120.
The at least one motor control unit 120 is connected to the communication control unit 110 and the at least one motor 300, and is configured to drive the at least one motor 300 to start, stop, and operate according to the control instruction. Fig. 1 only schematically shows an embodiment in which the first motor control unit 120-1 is connected to the first motor 300-1 and the second motor control unit 120-2 is connected to the second motor 300-2, i.e. the first motor control unit 120-1 controls the first motor 300-1 and the second motor control unit 120-2 controls the second motor 300-2. However, it is clear to those skilled in the art that the embodiments of the present disclosure are not limited to this embodiment, and the number of the motors 300 may be increased or decreased in accordance with the actual motor control needs and the motor control unit.
The motor control unit 120 and the communication control unit 110 may be in RS232 serial communication connection. The communication control unit 110 and the upper computer 200 CAN be in communication connection through a CAN bus.
In the embodiment of the present disclosure, the motor control unit 120 has a sensing control mode and a non-sensing control mode, the sensing control mode is adopted when the motor 300 is started, and the motor 300 is switched to the non-sensing control mode after being successfully started.
The existing vehicle-mounted measurement and control environment has the characteristics of complex electromagnetic environment, multiple interference sources and strong interference signals. When a driving cable and a signal cable of the speed regulation control device are laid on a vehicle, the cable is long, and various cables are wound and crossed with each other, so that the problem of electromagnetic interference is aggravated. In addition, under a severe working environment, the motor of the speed regulating system has the loaded characteristics of large moment at the starting moment and small working moment in the actual working process, the phenomenon that the mechanical structure is not smoothly started can occur in the working process of the executing mechanism, and the phenomenon that the mechanical structure is blocked can also occur. Therefore, in order to solve the problems of interference resistance and smooth start of the speed control device, the embodiment of the present disclosure adopts a control mode combining inductive control and non-inductive control in the motor control unit 120. The following two modes are specifically described:
1. inductive control mode
In the inductive control mode, the motor control unit can accurately obtain a position signal of the motor rotor through the Hall sensor, so that the rotating speed of the motor can be accurately calculated. The motor control unit adopts double-loop control of a current loop and a rotating speed loop to accurately control the starting torque and the starting time of the motor, and the starting torque of the motor is increased compared with the normal starting torque. The inductive control mode of the brushless direct current motor has the advantages of high control precision and flexible control of starting torque, but the anti-interference capability in the high-speed operation process is relatively poor.
2. Non-inductive control mode
In the working process of the speed regulating system, when the sensing control mode is used for driving the cable and the signal cable to exceed 10 meters, the interference of Hall signals of the system is greatly enhanced when the motor runs at high speed, and the condition that the sensing control mode runs abnormally can occur.
In the non-inductive control mode, the motor control unit calculates the rotating speed of the motor by detecting the back electromotive force of the motor, and does not depend on Hall feedback signals, so that the problem that electromagnetic signals interfere the normal operation of a system in the inductive control mode is solved. However, in the non-inductive control mode, when the motor runs at a low speed, the system runs unstably because the back electromotive force of the motor is too small, and accurate torque control cannot be performed at the moment of starting the motor. Therefore, the non-inductive control mode has the advantages of strong anti-interference capability and stable high-speed operation, and has the defects of unreliable low-speed operation and uncontrollable starting torque.
In the embodiment of the disclosure, the motor control unit controls the motor in a mode combining an inductive control mode and a non-inductive control mode, the inductive control mode is adopted when the motor is started, and the non-inductive control mode is switched after the motor is successfully started, so that the problems of electromagnetic interference and unsmooth starting in a speed regulating system are effectively solved, and the scheme of the speed regulating system is optimized.
Fig. 2 is a schematic structural diagram of the communication control unit 110 in the speed regulation control device 100 according to the embodiment of the present disclosure. As shown in fig. 2, the communication control unit 110 includes a main control module 111, a CAN communication module 112, and a digital quantity input module 113. A CAN communication module 112 and a digital quantity input module 113 are respectively connected to the master control module 111.
The CAN communication module 112 is configured to exchange data with the upper computer 200 and receive a control instruction of the upper computer 100.
The digital input module 113 is configured to acquire a switching digital signal of the sensor 400, and transmit the switching digital signal to the main control module 111. The main control module 111 is configured to send the switching value digital signal of the sensor 400 to the upper computer 200 via the CAN communication module 112, and send a control instruction of the upper computer 100 to the at least one motor control unit 120.
In some embodiments, the CAN communication module 112 includes a CAN bus isolation unit and a lightning protection bidirectional composite protection unit. In a preferred embodiment, the CAN communication module 112 may include two completely independent CAN communication channels for data exchange with the upper computer 100. The CAN communication module 112 is connected with the main control module 111 through a CAN bus isolation unit and is connected to a CAN bus through a lightning protection bidirectional composite protection unit to realize data communication with the upper computer 200. Preferably, the CAN communication specification between the speed regulation control device and other systems is CAN 2.0B, the baud rate is 250 kbit/s, and the ID CAN be set.
In some embodiments, the digital input module 113 includes an optical coupling and isolation circuit unit for performing isolated acquisition on the digital signal of the sensor 400. Illustratively, the digital quantity input module 113 may include 8-way, 16-way, or 32-way channels.
Fig. 3 is a schematic structural diagram of the motor control unit 120 in the speed regulation control device 100 according to the embodiment of the present disclosure. As shown in fig. 3, the motor control unit 120 includes a microprocessor 121, a power control circuit 122, and a rotation speed detection circuit 123.
The power control circuit 122 is connected to the microprocessor 121 and the motor 300, and is configured to drive the motor 300 to start, stop, and operate under the control of the microprocessor 121. The rotation speed detection circuit 123 is configured to detect a rotation speed signal of the motor 300 and send the rotation speed signal to the microprocessor 121. Wherein the motor 300 comprises a brushless dc motor. The power control circuit may include a power MOS transistor and a power supply module (not shown in the figure).
In some embodiments, the microprocessor 121 is further configured to collect a current signal output by the power control circuit 122, and perform a dual-loop control of a current loop and a speed loop on the motor 300 based on the current signal and the rotation speed signal. Further, the microprocessor 121 can also precisely control the starting torque and starting time of the motor by using dual-loop control of the current loop and the speed loop. Further, the microprocessor 121 is also used for performing over-current, over-voltage and under-voltage protection on the power control circuit 122.
In some embodiments, the rotation speed detection circuit 123 calculates the rotation speed of the motor by acquiring the movement position of the rotor of the motor through a hall sensor in the inductive control mode; in the non-inductive control mode, the rotating speed of the motor is calculated by detecting the back electromotive force of the motor.
The control inversion of the motor 300 by the motor control unit 120 of the present disclosure may adopt a full-bridge inversion topology, and the power MOS transistor adopts a dual-transistor parallel connection to increase the instantaneous impact resistance. The microprocessor can also sample the current by adopting a precision resistor, and then the current is processed by the operational amplifier and then is sent to the data conversion sampling circuit.
The motor control unit 120 may perform dual loop control by using a current loop as an inner loop and a speed loop as an outer loop using a PID control algorithm. The motor uses the inductive control mode at the starting moment, and the motor is started at constant torque in the process. And when the motor is started successfully, the system is switched to a non-inductive control mode. In the normal rotation process of the motor, a current ring and a speed ring are used for double-ring control. When the motor is locked, the current loop plays a main role to carry out locked rotor protection on the system.
The speed regulation control device 100 of the present disclosure CAN receive a control instruction of the upper computer 200 through the CAN bus, and the motor 300 drives the corresponding executing mechanism to act. The sensor is arranged near the actuating mechanism, and the speed regulation control device transmits the acquired sensor signal (counting signal or switching signal) to the upper computer through the CAN bus. And the upper computer judges whether the current action is in place or not according to the sensor signal uploaded by the speed regulation control device, and if the current action is in place, the upper computer sends a stop command to the speed regulation control device, finishes the execution of the current action and returns state information.
To better illustrate the working principle of the speed control device according to the present disclosure, the following description is given to an example of the communication control logic executed by the communication control unit 110:
the communication control unit calls 5 kinds of interrupts in the execution process, namely CAN receiving interrupt, serial port sending interrupt, serial port receiving interrupt, 1 millisecond timer interrupt and 10 microsecond timer interrupt. The 5 interrupt priorities are CAN receive interrupt > serial send interrupt > serial receive interrupt >1 millisecond timer interrupt >10 microsecond timer interrupt.
The CAN receiving interruption is used for judging the CAN message received from the upper computer and putting CAN data into a buffer area for processing.
The 1 millisecond timer interrupt is used to set the 1 millisecond time flag bit.
The 10 microsecond timer interrupt is used to set the 10 microsecond time flag bit.
The serial port sending interrupt is used for sending a serial port character to the motor control unit each time.
The serial port receive interrupt is used to receive a serial port character from the motor control unit each time.
The processing flow is as follows:
1. the communication control unit calls the CAN to receive the CAN data sent by the upper computer in an interruption mode and puts the CAN data into a CAN data receiving buffer area.
2. A 1 millisecond timer interrupt is invoked to set the flag bit. The flag bit of 1 millisecond is judged in the main program, and the CAN data is processed. First, CAN data is read from a CAN data reception buffer, and then different operations are taken according to the ID of the CAN data. If the command is a motor control command, the motor control command is put into a serial port sending buffer area, and serial port sending interruption is opened. If the command is other commands, after the corresponding operation is finished, the response is directly carried out through the CAN.
3. Calling serial port sending interruption, sending a character each time when the serial port is idle, and judging whether the sending of the data in the serial port sending buffer area is finished or not. And if the serial port data is sent completely, closing the serial port sending interruption.
4. And calling a serial port to receive and interrupt data such as voltage and current sent back by the motor control unit and store the data in a cache.
5. A 10 microsecond timer interrupt is invoked to set the flag bit. And judging the 10 microsecond zone bit in the main program, and reading a motor rotation pulse signal. And calculating the number of turns and the rotating speed of the motor according to the motor rotating pulse signal.
Returning to fig. 1, the present disclosure also provides a governor system 10, where the governor system 10 includes: the upper computer 200, the speed regulation control device 100 and at least one motor 300.
The speed regulation control device 100 is connected with the upper computer 200 and the at least one motor 300, and is used for receiving a control instruction of the upper computer 200 and controlling the start, stop and operation of the at least one motor 300. The at least one motor 300 is used for driving at least one corresponding executing mechanism to execute actions under the control of the speed regulation control device 100.
The speed regulating system of the embodiment of the disclosure controls the speed regulating control device through the upper computer, the function configuration is flexible, the speed regulating control device controls the motor in a mode combining an inductive control mode and a non-inductive control mode, the inductive control mode is adopted when the motor is started, and the non-inductive control mode is switched after the motor is successfully started, so that the problems of electromagnetic interference and unsmooth starting existing in the speed regulating system are effectively solved, and the scheme of the speed regulating system is optimized.
Fig. 4A-4D are schematic structural diagrams of a housing of the speed control device 100 according to the embodiment of the disclosure. As shown in fig. 4A-4D, the housing of the throttle control apparatus 100 includes a housing 130 and a cover plate 140.
The housing 130 has an accommodating cavity for installing the at least one motor control unit 120 therein, and a plurality of first screw holes are formed in the bottom of the housing 130, and the first screw holes are used for directly and fixedly installing the at least one motor control unit 120 at the bottom of the housing 130.
The surface of the cover plate 140 connected to the housing has a plurality of second screw holes, and the second screw holes are used to fixedly mount the communication control unit 110 of the speed regulation control device 100 on the cover plate 140.
In order to improve the heat dissipation effect on the circuit board of the motor control unit, the shell and the cover plate are made of heat dissipation metal materials.
In some embodiments, the heat generating devices on the motor control unit 120, such as the MOS transistor and the power module of the power control circuit 122, may be welded on the bottom side of the motor control unit, and directly contact with the bottom of the housing for heat dissipation, so that all the heat generating devices can be well dissipated.
The peripheral edge of the top of the housing 130 is fixedly connected with the edge of the cover plate 140, and the peripheral edge of the top of the housing 130 has an annular groove 131 for receiving a waterproof rubber ring.
In some embodiments, the peripheral edge of the cover plate 140 may further have an annular protrusion 141 corresponding to the annular groove 131, so that the waterproof rubber ring can be compressed when the cover plate is connected to the peripheral edge of the housing, and a good waterproof effect can be achieved without applying glue.
In some embodiments, the housing 130 is further provided with a plurality of openings 132 on both sides for receiving electrical connector interfaces. Electrical connector interfaces include, but are not limited to, power interfaces, communication interfaces, internal sensor interfaces, external sensor interfaces, motor winding drive interfaces. The electric connector interface has waterproof property, and can ensure the moisture-proof and waterproof performance of the speed regulation control device in severe weather.
The casing structure of the speed regulation control device of the embodiment of the disclosure has waterproof, dustproof and heat dissipation design, and has detachability, and the protection grade can reach IP 67. The casing structure improves the waterproof performance, the dustproof performance and the heat dissipation performance on the basis of ensuring the integral detachability and the high maintenance performance of the speed regulation control device, and further improves the high reliability and the high adaptability of the speed regulation control device.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present disclosure, and not for limiting the same; while the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present disclosure.
Claims (10)
1. A speed-regulation control device characterized by comprising:
a communication control unit and at least one motor control unit;
the communication control unit is used for receiving a control instruction of the upper computer and sending the control instruction to the at least one motor control unit; the at least one motor control unit is connected with the communication control unit and the at least one motor and is used for driving the at least one motor to start, stop and run according to the control instruction;
the motor control unit is provided with a sensing control mode and a non-sensing control mode, the sensing control mode is adopted when the motor is started, and the non-sensing control mode is switched after the motor is successfully started.
2. The speed regulation control device of claim 1, wherein the communication control unit comprises a master control module, a digital quantity input module and a CAN communication module, the digital quantity input module and the CAN communication module are respectively connected to the master control module; the CAN communication module is used for exchanging data with an upper computer and receiving a control instruction of the upper computer; the digital quantity input module is used for acquiring digital signals of the sensor and transmitting the digital signals to the main control module; the main control module is used for sending the digital signals of the sensors to the upper computer through the CAN communication module and sending the control instructions of the upper computer to the at least one motor control unit.
3. The speed regulation control device of claim 2, wherein the digital quantity input module comprises an optical coupling isolation circuit unit for isolating and collecting the digital signal of the sensor.
4. A speed control device according to claim 2, wherein the CAN communication module comprises a CAN bus isolation unit and a lightning protection bidirectional composite protection unit.
5. The speed regulation control device of claim 1 wherein the motor control unit comprises a microprocessor, a power control circuit and a speed detection circuit; the power control circuit is connected with the microprocessor and the motor and used for driving the motor to start, stop and run under the control of the microprocessor, and the rotating speed detection circuit is used for detecting a rotating speed signal of the motor and sending the rotating speed signal to the microprocessor.
6. The speed regulation control device of claim 5, wherein the microprocessor is further configured to collect a current signal output by the power control circuit, and perform double loop control of a current loop and a speed loop on the motor based on the current signal and the rotation speed signal.
7. The speed regulation control device of claim 5, wherein the rotation speed detection circuit calculates the rotation speed of the motor by acquiring the movement position of the motor rotor through a Hall sensor in the inductive control mode; in the non-inductive control mode, the rotating speed of the motor is calculated by detecting the back electromotive force of the motor.
8. A throttle control device as set forth in claim 6, wherein the microprocessor uses the dual loop control to precisely control the starting torque and starting time of the motor.
9. A speed regulation control device according to claim 6 wherein the microprocessor is also adapted to provide over-current and under-voltage protection for the power control circuit.
10. A governor system, comprising:
an upper computer;
a speed control device according to any one of claims 1 to 9, connected to the upper computer and at least one motor, for receiving a control command from the upper computer, and performing start-stop and operation control on the at least one motor;
and the motor is used for driving at least one corresponding executing mechanism to execute actions under the control of the speed regulation control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121369325.9U CN214756125U (en) | 2021-06-18 | 2021-06-18 | Speed regulation control device and speed regulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121369325.9U CN214756125U (en) | 2021-06-18 | 2021-06-18 | Speed regulation control device and speed regulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214756125U true CN214756125U (en) | 2021-11-16 |
Family
ID=78630464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121369325.9U Active CN214756125U (en) | 2021-06-18 | 2021-06-18 | Speed regulation control device and speed regulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214756125U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113258831A (en) * | 2021-06-18 | 2021-08-13 | 山东用新电子科技有限公司 | Speed regulation control device and speed regulation system |
-
2021
- 2021-06-18 CN CN202121369325.9U patent/CN214756125U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113258831A (en) * | 2021-06-18 | 2021-08-13 | 山东用新电子科技有限公司 | Speed regulation control device and speed regulation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214756125U (en) | Speed regulation control device and speed regulation system | |
| CN101734379B (en) | FPGA-based highly-integrated high-precision control system for micro flywheel | |
| CN102777367A (en) | Automobile electronic water pump controller with multiple interfaces | |
| CN102111106B (en) | Motor comprehensive control apparatus based on ARM (Advanced RISC Machines) and DSP (digital signal processor) | |
| CN102536482B (en) | Generating system | |
| CN109728754A (en) | A kind of embedded dual core electric machine control system and its working method | |
| US9534882B2 (en) | Device and method for driving a door | |
| CN210640820U (en) | Speed regulation controller | |
| CN113258831A (en) | Speed regulation control device and speed regulation system | |
| CN214852256U (en) | Speed regulation controller | |
| CN101436840A (en) | Motor device and motor control speed system | |
| CN101539407A (en) | Infrared photoelectric rotor angular displacement sensor structure of switched reluctance electric motor | |
| CN115684556A (en) | Intelligent monitoring system and method for mine geothermal deep well water content | |
| CN204046475U (en) | A kind of down-hole brushless DC motor driving controller | |
| CN112519623A (en) | Charging pile control system | |
| CN203537285U (en) | Digital multi-motor control platform based on single-chip microcomputer | |
| CN202383514U (en) | CAN communication mode based excitation fault diagnosis apparatus | |
| CN213213092U (en) | Low-power direct-current spindle motor protection speed stabilizing device | |
| CN217522761U (en) | Servo driving system | |
| CN212137569U (en) | Motor driver based on multimode communication and feedback closed loop | |
| CN201975921U (en) | Electronic spacing motor having 1-wire interface | |
| CN201006680Y (en) | Double electric machine automatic switching electric vehicle controller | |
| CN215498779U (en) | Direct current brushless motor control system | |
| CN201392185Y (en) | Infrared photo-electrical type rotor angular displacement sensor structure of switched reluctance motor | |
| CN207218578U (en) | A kind of load motor drive circuit board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |