CN113037179A - Motor control system of electric scooter - Google Patents
Motor control system of electric scooter Download PDFInfo
- Publication number
- CN113037179A CN113037179A CN202110275991.4A CN202110275991A CN113037179A CN 113037179 A CN113037179 A CN 113037179A CN 202110275991 A CN202110275991 A CN 202110275991A CN 113037179 A CN113037179 A CN 113037179A
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- Prior art keywords
- pin
- control system
- auxiliary power
- motor control
- controller
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- 239000003990 capacitor Substances 0.000 claims description 30
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000005286 illumination Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 12
- 230000009194 climbing Effects 0.000 abstract description 4
- 238000004804 winding Methods 0.000 abstract description 4
- 230000005669 field effect Effects 0.000 abstract description 3
- 239000004065 semiconductor Substances 0.000 abstract description 3
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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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
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/60—Controlling or determining the temperature of the motor or of the drive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/46—Vehicles with auxiliary ad-on propulsions, e.g. add-on electric motor kits for bicycles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a motor control system of an electric scooter, which comprises a 12V auxiliary power supply, a 5V auxiliary power supply, a brake system and a motor temperature detection system, wherein the 5V auxiliary power supply is electrically connected with the output end of the 12V auxiliary power supply, the 5V auxiliary power supply is electrically connected with the brake system, the 12V auxiliary power supply is electrically connected with a lighting and auxiliary prompting lamp circuit, the motor temperature detection system is electrically connected with the 5V auxiliary power supply, a P3.1 pin and a P3.2 pin of a controller are electrically connected with a switch outgoing line system, a P2.0 pin and a P2.1 pin of the controller are electrically connected with the motor control system, the motor control system comprises three-phase control circuits, the three-phase control circuits are an A phase output, a B phase output and a C phase output, and the A phase output, the B phase output and the C phase output are electrically connected in parallel. The 48V power supply is adopted, the output power of an MOSFET (metal oxide semiconductor field effect transistor) and a driving circuit of the controller is increased, and the climbing capacity is increased by combining single-wire winding of the motor and a mode of reducing the rotating speed and increasing the torque force of the motor.
Description
Technical Field
The invention relates to the technical field of control systems, in particular to a motor control system of an electric scooter.
Background
The electric skateboard is a vehicle based on a traditional manpower skateboard and added with an electric power suite. The current electric skateboard is generally divided into a double-wheel drive or a single-wheel drive, the most common transmission modes are a HUB motor (HUB) and a belt drive, and the main power source of the electric skateboard is a lithium battery pack.
The electric scooter has the same control mode as that of the traditional electric bicycle, is easy to learn by a driver, is provided with a detachable and foldable saddle, has simple structure and small wheels, is light and convenient compared with the traditional electric bicycle, and can save a large amount of social resources. In recent years, the electric scooter with lithium batteries is rapidly developed, and new requirements and situations are promoted.
The electric scooter is popular in Europe and America and China in recent years, and can provide a walk substitute for the masses, however, the common electric scooter at present can not realize good driving feeling in the process of ascending, even the 24V/36V motor on the market adopts multi-line winding because of high gradient, the torque difference is easy to generate heat and demagnetize, the scooter is driven insufficiently to cause the phenomenon of sliding, and the safety of riders is seriously influenced.
Disclosure of Invention
The present invention is directed to a motor control system for electric scooter, which solves the above problems in the prior art. The performance of the scooter is improved by matching with a 48V voltage and a more stable control system.
The invention provides a motor control system of an electric scooter, aiming at solving the problem that a sample must be removed from a pressure chamber for installation and preparation in a traditional test, and comprising a 12V auxiliary power supply, a 5V auxiliary power supply, a braking system and a motor temperature detection system, wherein the 5V auxiliary power supply is electrically connected with the output end of the 12V auxiliary power supply, the voltage output by a triode PU2 arranged in the 5V auxiliary power supply is 5V, the 5V auxiliary power supply is electrically connected with the braking system, the 12V auxiliary power supply is electrically connected with a lighting and auxiliary prompting lamp circuit, the braking system is electrically connected with a P0.6 pin and a P0.7 pin of a controller, the motor temperature detection system is electrically connected with the 5V auxiliary power supply, and the motor temperature detection system is electrically connected with a P3.4 pin, a P3.3 pin and a P3.5 pin of the controller; the P3.1 pin and the P3.2 pin electric connection switch outgoing line system of controller, the P2.0 pin and the P2.1 pin electric connection motor control system of controller, motor control system passes through battery power pin connection battery, motor control system includes three-phase control circuit, three-phase control circuit is A looks output, B looks output, C looks output, A looks output, B looks output, C looks output carry out electric connection for parallel connection's mode.
In order to improve the practicability of the invention, preferably, the 5V auxiliary power supply is electrically connected with a capacitor PC7 and a capacitor PC8, and the capacitor PC7 and the capacitor PC8 are connected in parallel and grounded; the capacitor PC7 and the capacitor PC8 are also connected with an electrolytic capacitor PC6 in parallel.
Preferably, in order to improve the practicability of the present invention, the braking system includes a left braking signal P0.6 and a right braking signal P0.7, the left braking signal P0.6 is electrically connected to the controller SP, and the right braking signal P0.7 is electrically connected to the controller BRK.
Preferably, in order to improve the practicability of the invention, a HALL temperature sensor is arranged on the motor temperature detection system, and the model of the HALL temperature sensor is HALL 1.
Advantageous effects
The invention provides a motor control system of an electric scooter, which has the following beneficial effects:
the invention adopts a 48V power supply, increases the output power of an MOSFET (metal-oxide-semiconductor field effect transistor) and a driving circuit of a controller, and increases the climbing capability by combining single-wire winding of a motor and increasing the torque of the motor by reducing the rotating speed, wherein the motor with the power of about 600 watts in the market and 80KG load of the motor only reaches about 15 degrees and the motor can reach more than 21 degrees.
Can let the power of scooter more strengthen the experience feel better, can let the temperature of controller and motor lower, the demagnetization rate of the low motor of temperature will be lower, the speed that motor torsion descends will be slower, bad phenomenon just is lower in appearance of controller and motor, and life just increases, has just reduced maintenance and has played the purpose of saving with the after-sales cost intangible.
Drawings
FIG. 1 is a circuit diagram of a 12V auxiliary power supply for a scooter motor control system in accordance with the present invention;
FIG. 2 is a circuit diagram of a 5V auxiliary power supply for a scooter motor control system in accordance with the present invention;
FIG. 3 is a circuit diagram of a braking system of a motor control system of an electric scooter of the present invention;
FIG. 4 is a circuit diagram of an illumination and auxiliary notification light circuit of a motor control system for an electric scooter of the present invention;
FIG. 5 is a circuit diagram of a controller of a motor control system of the electric scooter of the present invention;
FIG. 6 is a circuit diagram of a motor control system of an electric scooter motor control system according to the present invention;
FIG. 7 is a circuit diagram of a switch outlet system of a scooter motor control system according to the present invention;
FIG. 8 is a circuit diagram of a motor temperature detection system of a scooter motor control system according to the present invention;
fig. 9 is a circuit diagram illustrating the connection of the whole module of the motor control system of the electric scooter according to the present invention.
In the figure: (1) the power supply is a 12V auxiliary power supply, (2) the power supply is a 5V auxiliary power supply, (3) the brake system, (4) the lighting and auxiliary prompting lamp circuit, (5) the connection controller, (6) the motor temperature detection system, (7) the switch lead-out wire system, and (8) the motor control system.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, and fig. 9, the present invention provides a technical solution: an electric scooter motor control system comprises a 12V auxiliary power supply 1, a 5V auxiliary power supply 2, a brake system 3 and a motor temperature detection system 6, wherein the 5V auxiliary power supply 2 is electrically connected with a power output end of the 12V auxiliary power supply 1, the voltage output by a triode PU2 arranged in the 5V auxiliary power supply 2 is 5V, the 5V auxiliary power supply 2 is electrically connected with the brake system 3, the 12V auxiliary power supply 1 is electrically connected with a lighting and auxiliary warning lamp circuit 4, the brake system 3 is electrically connected with a P0.6 pin and a P0.7 pin of a controller 5, the model of the controller 5 is SH79F3213U-8BI T _ MCU-TQFP48L, the motor temperature detection system 6 is electrically connected with the 5V auxiliary power supply 2, and the motor temperature detection system 6 is electrically connected with a P3.4 pin, a P3.3 pin and a P3.5 pin of the controller 5; the P3.1 pin and the P3.2 pin electric connection switch outgoing line system 7 of controller 5, the P2.0 pin and the P2.1 pin electric connection motor control system 8 of controller 5, motor control system 8 passes through battery power supply pin connection battery, motor control system 8 includes three phase control circuit, three phase control circuit is A looks output, B looks output, C looks output, A looks output, B looks output, C looks output carry out electric connection for parallel connection's mode.
Further, the 5V auxiliary power supply 2 is electrically connected with a capacitor PC7 and a capacitor PC8, and the capacitor PC7 and the capacitor PC8 are connected in parallel and grounded; the capacitor PC7 and the capacitor PC8 are also connected with an electrolytic capacitor PC6 in parallel. The electrolytic capacitor PC6 is used for ensuring that the power consumption of the circuit is sometimes large and sometimes small, when the power consumption is suddenly increased, if the electrolytic capacitor PC6 is not arranged, the power supply voltage is pulled down, noise and ringing are generated, the stored electric energy can be released temporarily by the capacitor with large capacity at the moment, the power supply voltage is stabilized, and the voltage stabilizing effect of the electrolytic capacitor PC6 is more stable. The capacitor PC7 and the capacitor PC8 have a filtering function, and interference signals of the circuit are reduced.
Further, the braking system 3 includes a left brake signal P0.6 and a right brake signal P0.7, the left brake signal P0.6 is electrically connected to the controller SP, and the right brake signal P0.7 is electrically connected to the controller BRK.
Further, a HALL temperature sensor is arranged on the motor temperature detection system 6, and the model of the HALL temperature sensor is HALL 1. A hall sensor is a magnetic field sensor made according to the hall effect. The Hall temperature sensor is used for detecting the temperature of the motor of the scooter in the using process and feeding the detected temperature back to the controller 5 in time.
In order to further improve the practicability of the invention, the pin P3.1 and the pin P3.2 of the controller 5 and the switch outgoing line system 7 are transmitted and received through serial ports. The controller 5 is programmed to realize a corresponding control technology, and the programming technology can be programmed according to the programming principle of the existing scooter.
Further, in order to improve the practicability of the invention, the switch outlet system 7 is connected to 5V voltage, the switch outlet system 7 comprises a switch SW, a triode BQ2 and a triode BQ3, the switch SW is connected with the triode BQ2 in series, and the triode BQ2 is connected with the triode BQ3 in series. The amplification factor of the circuits of the two triodes BQ2 and BQ3 is the product of the amplification factors of the two independent triodes, which means that the current change of one small input is small, the current change of the collector of the later triode can be immediately made to be large, the later triode is immediately saturated or cut off, and the effect of quickly responding to the switch SW can be realized. Switch lead-out wire system 7 is used for connecting the control button of scooter, realizes the function control to the scooter.
Further to improve the utility of the invention, the voltage of the battery is 48 v. The 48V voltage source greatly increases the power and the endurance capacity of the scooter.
In order to further improve the practicability of the invention, the circuit structures of the A phase output, the B phase output and the C phase output are the same.
When the circuit system is used, the power supply is provided with the electrolytic capacitor PC6, the charging and discharging ratio of the electrolytic capacitor PC6 is large, the voltage output stability of the voltage source is good, and meanwhile, the capacitor is matched for filtering, so that unstable factors in the circuit can be reduced. 48V makes the power increase of scooter, and the climbing performance reduces, has improved the comfort level that the scooter used. The invention adopts a 48V power supply, increases the output power of an MOSFET (metal-oxide-semiconductor field effect transistor) and a driving circuit of a controller, and increases the climbing capability by combining single-wire winding of a motor and increasing the torque of the motor by reducing the rotating speed, wherein the motor with the power of about 600 watts in the market and 80KG load of the motor only reaches about 15 degrees and the motor can reach more than 21 degrees.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an electric scooter motor control system, includes 12V auxiliary power source (1), 5V auxiliary power source (2), braking system (3), motor temperature detecting system (6), a serial communication port, 5V auxiliary power source (2) electric connection 12V auxiliary power source (1) power output end, 5V auxiliary power source (2) are 5V through the voltage that sets up triode PU2 output in inside, 5V auxiliary power source (2) electric connection braking system (3), 12V auxiliary power source (1) electric connection illumination and supplementary warning light circuit (4), P0.6 pin and P0.7 pin of braking system (3) electric connection controller (5), motor temperature detecting system (6) electric connection 5V auxiliary power source (2), the P3.4 pin of motor temperature detecting system (6) electric connection controller (5), Pin P3.3 and pin P3.5; the utility model discloses a motor control system, including controller (5), P3.1 pin and P3.2 pin electric connection switch lead-out wire system (7) of controller (5), P2.0 pin and P2.1 pin electric connection motor control system (8) of controller (5), motor control system (8) are through battery power pin connection battery, motor control system (8) include three-phase control circuit, three-phase control circuit is A looks output, B looks output, C looks output, A looks output, B looks output carry out electric connection for parallel connection's mode.
2. The electric scooter motor control system as claimed in claim 1, wherein the 5V auxiliary power source (2) is electrically connected to a capacitor PC7 and a capacitor PC8, the capacitor PC7 and the capacitor PC8 are connected in parallel and grounded; the capacitor PC7 and the capacitor PC8 are also connected with an electrolytic capacitor PC6 in parallel.
3. The electric scooter motor control system of claim 1, wherein the brake system (3) comprises a left brake signal P0.6 and a right brake signal P0.7, the left brake signal P0.6 is electrically connected to the controller SP, and the right brake signal P0.7 is electrically connected to the controller BRK.
4. The electric scooter motor control system as claimed in claim 1, wherein said motor temperature detecting system (6) is provided with HALL temperature sensor, HALL temperature sensor model is HALL 1.
5. The electric scooter motor control system of claim 1, wherein the pin P3.1 and pin P3.2 of the controller (5) and the switch outlet system (7) are connected via serial ports for transmission and reception.
6. The electric scooter motor control system of any one of claims 1 and 4, wherein the switch outlet system (7) is connected to a voltage of 5V, the switch outlet system (7) comprises a switch SW, a transistor BQ2, and a transistor BQ3, the switch SW is connected in series with a transistor BQ2, and the transistor BQ2 is connected in series with a transistor BQ 3.
7. The electric scooter motor control system of claim 1, wherein the battery voltage is 48 v.
8. The electric scooter motor control system of claim 1, wherein the circuit configuration of the phase a output, the phase B output, and the phase C output are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110275991.4A CN113037179A (en) | 2021-03-15 | 2021-03-15 | Motor control system of electric scooter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110275991.4A CN113037179A (en) | 2021-03-15 | 2021-03-15 | Motor control system of electric scooter |
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| Publication Number | Publication Date |
|---|---|
| CN113037179A true CN113037179A (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110275991.4A Pending CN113037179A (en) | 2021-03-15 | 2021-03-15 | Motor control system of electric scooter |
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| Country | Link |
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| CN (1) | CN113037179A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407380A (en) * | 2013-07-29 | 2013-11-27 | 天津市松正电动汽车技术股份有限公司 | Scooter controller based on single chip microcomputer |
| CN206186823U (en) * | 2016-10-26 | 2017-05-24 | 深圳市鳄鱼平衡车有限公司 | Electronic wheel barrow and control system thereof |
| CN109217773A (en) * | 2018-10-16 | 2019-01-15 | 株洲易力达机电有限公司 | A kind of electric machine control system applied to 48V vehicle power supply |
| CN212627742U (en) * | 2020-06-01 | 2021-02-26 | 深圳海博电机驱动有限公司 | Multi-functional DC brushless motor control system of electric scooter |
-
2021
- 2021-03-15 CN CN202110275991.4A patent/CN113037179A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407380A (en) * | 2013-07-29 | 2013-11-27 | 天津市松正电动汽车技术股份有限公司 | Scooter controller based on single chip microcomputer |
| CN206186823U (en) * | 2016-10-26 | 2017-05-24 | 深圳市鳄鱼平衡车有限公司 | Electronic wheel barrow and control system thereof |
| CN109217773A (en) * | 2018-10-16 | 2019-01-15 | 株洲易力达机电有限公司 | A kind of electric machine control system applied to 48V vehicle power supply |
| CN212627742U (en) * | 2020-06-01 | 2021-02-26 | 深圳海博电机驱动有限公司 | Multi-functional DC brushless motor control system of electric scooter |
Non-Patent Citations (1)
| Title |
|---|
| 廖任秀等: "基于PR0TEUS电动滑板车控制器的设计", 《金华职业技术学院学报》, vol. 8, no. 6, 31 December 2008 (2008-12-31), pages 8 - 11 * |
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Application publication date: 20210625 |