CN208656679U - A kind of hub motor integrated driving control device - Google Patents
A kind of hub motor integrated driving control device Download PDFInfo
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- CN208656679U CN208656679U CN201821520049.XU CN201821520049U CN208656679U CN 208656679 U CN208656679 U CN 208656679U CN 201821520049 U CN201821520049 U CN 201821520049U CN 208656679 U CN208656679 U CN 208656679U
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Abstract
The utility model relates to a kind of hub motor integrated driving control devices, it is complicated which solve existing hub motor control system structures, reliability is low, anti-interference is weak, it is difficult in maintenance when failure, control system does not have the technical issues of scalability, it includes external controller, built-in controller, power module, current sensor and Hall sensor, built-in controller includes fpga chip, ADC module and current transformer, external controller is connect with fpga chip, current transformer is connect with fpga chip, the output end of ADC module is connect with fpga chip, the power output end of power module respectively with fpga chip, ADC module connection；The output end of current sensor and Hall sensor is connect with the input terminal of ADC module respectively, can be widely applied to the control system of control hub motor.
Description
Technical field
The utility model relates to a kind of motor control assemblies, specifically, being a kind of hub motor integrated driving control dress
It sets.
Background technique
It is well known that hub motor can be used for electric car.Hub motor is also known as wheel inner electric machine, by the dynamic of motor
Power is transferred directly to wheel, greatly simplifies the transmission system of electric car, and complete vehicle structure is more compact, and transmission efficiency is higher,
And have flexibly, be accurately controlled characteristic, therefore, hub motor application be an important research in current power drive system
Direction.
Under conditions of battery technology does not obtain essence and breaks through, the hub motor for developing high-power high-efficiency can be mentioned effectively
The course continuation mileage of high electric car.And hub motor is due to increasing wheel protonatomic mass and volume, thus increase unsprung mass and
The rotary inertia of wheel hub has certain influence to the manipulation of vehicle, so hub motor is more suitable for as airport ferry push or city
The vehicle of relatively large vehicle and rear wheel drive as city's bus.
The maximum feature of hub motor is not need gearbox, is but capable of providing big torsion when low speed required for vehicle
Square, so as to meet driving requirement of the complete vehicle weight at 20 tons or so.Have many producers both at home and abroad and is studying such motor
And system, but be all it is lower-powered, the more of car is intended for, and be mostly wheel side structure, in not just sincere justice
Hub motor.It in addition, also there is the hub motor of high-power grade to be matched on large-scale mine truck, but is all to have mechanical speed change dress
It sets.
The development of electric car is maked rapid progress, and the average efficiency for the drive system being made of hub motor can reach 86%
More than, and traditional drive system with gear-box never reaches this efficiency.If on electronic airport ferry push
It can be applied, and accumulate certain experiences data, eventually form tandem product, can be applied to pure electric vehicle city bus,
Larger Social benefit and economic benefit will be generated.
In conjunction with Patent No. CN201110358020.2, entitled " double wheel hub motor electronic differential and speed regulation centralized control
Technical solution disclosed in the Chinese invention patent of device " is it is found that the hub motor control system of the prior art uses centralized control
Device realizes control to double wheel hub motor, there is that structure is complicated, and reliability is low, and anti-interference is weak, and when failure is difficult in maintenance,
And control system does not have scalability.
Summary of the invention
The utility model is exactly to solve existing hub motor control system structure complexity, and reliability is low, anti-interference
Weak, when failure, is difficult in maintenance, and control system does not have the technical issues of scalability, provides that a kind of structure is simple, and information passes
Defeated real-time is high, and strong interference immunity, long transmission distance, environmental suitability is strong, controls flexible hub motor integrated driving control
Device.
The technical solution of the utility model is to provide a kind of hub motor integrated driving control device, including external control
Device, built-in controller, power module, current sensor and Hall sensor, built-in controller include fpga chip, ADC module
And current transformer, external controller are connect with fpga chip, current transformer is connect with fpga chip, the output end and FPGA of ADC module
Chip connection, the power output end of power module are connect with fpga chip, ADC module respectively；Current sensor and hall sensing
The output end of device is connect with the input terminal of ADC module respectively.
Preferably, external controller is connect by optical fiber with fpga chip.
Preferably, external controller is embedded type CPU control module, and embedded type CPU control module includes dsp chip and people
Machine interactive unit, man-machine interaction unit are connect with dsp chip, and dsp chip is connect by optical fiber with fpga chip.
Preferably, hub motor integrated driving control device further includes supply voltage detection unit and temperature sensor, electricity
The input terminal of source voltage detection unit is connect with power module, the input terminal connection of output end and ADC module；Temperature sensor
Output end and the input terminal of ADC module connect.
The utility model also provides a kind of hub motor integrated driving control device, including external controller, built-in control
Device, current transformer, power module, current sensor and Hall sensor, built-in controller include fpga chip and ADC module, outside
Controller to be set to connect with fpga chip, current transformer is connect with external controller, and the output end of ADC module is connect with fpga chip,
The power output end of power module is connect with fpga chip, ADC module respectively；The output end of current sensor and Hall sensor
It is connect respectively with the input terminal of ADC module.
Preferably, external controller is connect by optical fiber with fpga chip, and current transformer is connected by optical fiber and external controller
It connects.
Preferably, external controller is embedded type CPU control module, and embedded type CPU control module includes dsp chip and people
Machine interactive unit, man-machine interaction unit are connect with dsp chip, and the dsp chip is connect by optical fiber with fpga chip, DSP core
Piece is connect by optical fiber with current transformer.
Preferably, hub motor integrated driving control device further includes supply voltage detection unit and temperature sensor, institute
The input terminal for stating supply voltage detection unit is connect with power module, the input terminal connection of output end and ADC module；The temperature
The output end of sensor and the input terminal of ADC module connect.
The beneficial effects of the utility model are:
(1) the utility model uses the circuit structure of simple and flexible, realizes the acquisition of hub motor internal signal, and passes through
High speed fibre realizes data transmission, embedded type CPU control module is arranged outside hub motor to realize the control of motor, improves
The reliability of system, it is easy to maintain.While the utility model may be implemented built in hub motor current transformer and external both of which
Control.Control mode is more flexible, practical.
(2) the utility model uses the structure of external controller and built-in controller, and external controller is as master control system
Realize that control and the differential control of hub motor torque, external controller carry out data by high speed fibre and built-in controller
Exchange, built-in controller receive the data of external controller transmission, carry out drive control to embedded actuator current transformer.This is practical new
The control system scalability of type is strong, can drive 4 hub motors simultaneously, realizes 4 wheel driven control.And it is adapted to hub motor
The external and built-in structure of current transformer.
(3) built-in controller of the utility model realizes the acquisition of separate unit hub motor internal signal, then passes through high-speed light
It is fine to carry out data exchange with external embedded type CPU expansion module in real time.The Acquisition Circuit of hub motor internal signal may be implemented
The real-time acquisition of multiple signals, circuit structure is simple, and is sent to external embedded type CPU system by optical fiber, strong interference immunity,
It realizes more accurate data transmission, realizes the accurate control of hub motor.External embedded type CPU control module may be implemented to more
The centralized control of platform hub motor.The data of the more hub motors received are subjected to the cores such as torque distribution, differential control
The realization of algorithm.
(4) built-in controller is placed on inside hub motor, and circuit structure is simple, and it is small to place demand space.Use shielding
Cable run is adapted to complex electromagnetic environment when motor operation, improves the reliability of integrated manipulator.And built-in control
The connection of device and external embedded type CPU control module, as medium, is answered using high speed fibre when not running vulnerable to hub motor
The influence of strays magnetic environment, transmission range are longer.
(5) entire integrated driving control device, total digitalization are realized, have control algolithm strong security, anti-interference it is high,
The expansible and high feature of integrated level.
(6) the utility model is particularly suitable for the hub motor of high-power grade.
The utility model further feature and aspect, by the description of the specific embodiment below with reference to attached drawing,
It is clearly stated that.
Detailed description of the invention
Fig. 1 is the principles of the present invention block diagram；
Fig. 2 is the functional block diagram of fpga chip；
Fig. 3 is the functional block diagram of master control dsp chip in embedded type CPU control module；
Fig. 4 is the functional block diagram of master control dsp chip driving current transformer in embedded type CPU control module.
Symbol description in figure:
10. external controller, 11.DSP chip, 12. man-machine interaction units, 13. input/output signal processing circuits；20.
Built-in controller, 21.FPGA chip, 22.ADC module, 23. current transformers, 30. power modules, the detection of 30-1. supply voltage are single
Member, 40. hub motors, 40-1. current sensor, 40-2. Hall sensor, 40-3. temperature sensor.
Specific embodiment
Referring to the drawings, the utility model is described in further detail with specific embodiment.
Embodiment 1
The control system that the present embodiment is realized mainly for the structure built in hub motor current transformer.
Shown in Fig. 1, hub motor integrated driving control device includes external controller 10, built-in controller 20, power supply mould
Block 30, supply voltage detection unit 30-1, current sensor 40-1, Hall sensor 40-2, temperature sensor 40-3.Built-in control
Device 20 processed includes fpga chip 21, ADC module 22, current transformer 23, and external controller 10 is connect with fpga chip 21, current transformer 23
It is connect with fpga chip 21, the output end of ADC module 22 is connect with fpga chip 21.The power output end of power module 30 with
Fpga chip 21, ADC module 22 connect, and power module 30 is used to provide power supply to each unit.The alternating voltage of current transformer 23
Output end is connect with hub motor 40.The input terminal of supply voltage detection unit 30-1 is connect with power module 30, output end with
The input terminal of ADC module 22 connects.The output end of current sensor 40-1, Hall sensor 40-2 and temperature sensor 40-3 point
It is not connect with the input terminal of ADC module 22.
Current sensor 40-1 is used to detect the winding current of hub motor 40, the analog quantity current signal transmission of output
To ADC module 22, is converted to digital quantity current signal and is transmitted further to fpga chip 21.Current sensor 40-1 and current transformer 23 are defeated
Electric wire matching connection between outlet and hub motor 40, usually two current sensor 40-1 of configuration are to detect two-phase electricity
Stream.
Hall sensor 40-2 is used to detect the position signal or tach signal of hub motor 40, the analog quantity letter of output
Number it is transferred to ADC module 22, is converted to digital quantity signal and is transmitted further to fpga chip 21.Hall sensor 40-2 is mounted on wheel hub
On the stator of motor 40, for outer rotor hub motor, Hall sensor is mounted on inner stator, for internal rotor wheel hub electricity
Machine, Hall sensor are mounted on external stator.
Temperature sensor 40-3 is used to detect the winding temperature of hub motor 40, the analog quantity temperature signal transmission of output
To ADC module 22, is converted to digital quantity temperature signal and is transmitted further to fpga chip 21.Temperature sensor 40-3 is mounted on wheel hub electricity
On the rotor of machine 40, also it may be mounted on the stator of hub motor 40.
Supply voltage detection unit 30-1 is used to detect the output voltage of power module 30.
The output end of supply voltage detection unit 30-1 preferably uses shielded cable to connect with ADC module 22.Electric current passes
The output end of sensor 40-1 preferably uses shielded cable to connect with ADC module 22, and the output end of Hall sensor 40-2 is preferred
Ground is connect using shielded cable with ADC module 22, and the output end of temperature sensor 40-3 preferably uses shielded cable and ADC mould
Block 22 connects.The ac voltage output of current transformer 23 preferably uses shielded cable to connect with hub motor 40.Current transformer 23
It may be mounted on the stator of hub motor.
External controller 10 is arranged in the entire outside for surveying hub motor 40, external controller 10 by high speed fibre with
Fpga chip 21 connects, and the current signal, temperature signal, hall position of the hub motor received are detected letter by fpga chip 21
Number, the fault message of Hall rotary speed detecting signal and hub motor counted with external controller 10 in real time by high speed fibre
According to exchange.It is not influenced by electromagnetic interference when motor operation using high speed fibre, is able to achieve relatively long distance transmission.External controller
10 can use embedded type CPU control module.
It should be noted that if hub motor 40 is inner rotor core, and current transformer 23 is placed on hub motor 40
In internal rotor cavity, it is necessary to increase a temperature sensor, for detecting the temperature of the main power module on current transformer.
Current transformer 23 can not reside in hub motor, and the outside for being placed in hub motor (for example is placed on electronic
In the driver's cabin of automobile), interfere in this way it is small, when current transformer failure be easy for repairing.
It controls current transformer 23 by fpga chip 21 to work, thus 23 drive hub motor action of current transformer.With reference to Fig. 2,
PWM control algolithm program in fpga chip 21 is programmed by external embedded type CPU control module to be realized, embedded type CPU control
Control algolithm as a result, be sent to fpga chip 21 by high speed fibre, current transformer 23 is realized by fpga chip 21 by module
PWM control and system protection.
As shown in figure 3, embedded type CPU control module includes dsp chip 11, man-machine interaction unit 12 and input/output signal
Processing circuit 13, dsp chip 11 and fpga chip 21 carry out signal transmission and data exchange by high speed fibre.It is embedded
CPU control module mainly realizes the realization of monitoring, display function and hub motor closed loop control algorithm, embedded type CPU control
In module, Master control chip uses the dsp chip suitable for motor control.Embedded type CPU control module receives built-in control
The motor operation data that device 20 acquires, the core control algolithm of hub motor is realized by dsp chip 11.For more chaptrel hub electricity
Machine, embedded type CPU control module can be formed with flexible expansion (multiple fpga chips 21 and 11 connection communication of dsp chip)
Integrated manipulator.The man-machine interaction unit 12 of embedded type CPU control module is realized the monitoring to hub motor operating condition and is shown
Show and external command is assigned.
The corresponding hub motor of one wheel of the bus, as soon as the corresponding current transformer of a hub motor, four wheels have
Four hub motors and four current transformers, a dsp chip 11 can control four current transformer work.
Built-in controller 20 can be mounted on the rotor or stator of hub motor by carrier of PCB circuit board.
Embodiment 2
The control system that the present embodiment is realized mainly for the external structure of hub motor current transformer.The present embodiment with it is aforementioned
Difference of the embodiment 1 in structure is the setting position of current transformer, and the difference on circuit is the current transformer and FPGA of the present embodiment
There is no data transmission between chip.
When current transformer 23 is not arranged in inside hub motor, but it is arranged outside hub motor, that is to say, that current transformer
23 and hub motor be not integral structure, as shown in figure 4, realizing change by the dsp chip 11 in embedded type CPU control module
The drive control for flowing device 23, is carried out data transmission by high speed fibre.In this case, PWM control algolithm program is by dsp chip
11 realize completion.Fpga chip 21 by the current signal, temperature signal, hall position of the hub motor received detection signal,
Hall rotary speed detecting signal and the fault message of hub motor pass through high speed fibre and carry out data friendship with dsp chip 11 in real time
It changes.For the hub motor converter structure mode of external, external embedded type CPU control module has the function of driving current transformer
Can, it can also must be efficiently used in the hub motor debugging stage.In the external control realized to hub motor current transformer, optimization becomes
Device design is flowed, the debugging process of hub motor control system is simplified.
The above is not intended to limit the utility model only to the preferred embodiment of the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.All claims in the utility model
Limit range in, any modification, equivalent substitution, improvement and etc. done, should be covered by the scope of the present utility model within.
Claims (8)
1. a kind of hub motor integrated driving control device, characterized in that including external controller, built-in controller, power supply mould
Block, current sensor and Hall sensor, the built-in controller include fpga chip, ADC module and current transformer, described external
Controller is connect with fpga chip, and the current transformer is connect with fpga chip, and the output end and fpga chip of the ADC module connect
It connects, the power output end of the power module is connect with fpga chip, ADC module respectively；The current sensor and Hall pass
The output end of sensor is connect with the input terminal of ADC module respectively.
2. hub motor integrated driving control device according to claim 1, which is characterized in that the external controller is logical
Optical fiber is crossed to connect with fpga chip.
3. hub motor integrated driving control device according to claim 2, which is characterized in that the external controller is
Embedded type CPU control module, the embedded type CPU control module include dsp chip and man-machine interaction unit, the human-computer interaction
Unit is connect with dsp chip, and the dsp chip is connect by optical fiber with fpga chip.
4. hub motor integrated driving control device according to claim 3, which is characterized in that the hub motor is integrated
Drive dynamic control device further includes supply voltage detection unit and temperature sensor, the input terminal of the supply voltage detection unit with
The input terminal of power module connection, output end and ADC module connects；The output end of the temperature sensor and ADC module it is defeated
Enter end connection.
5. a kind of hub motor integrated driving control device, characterized in that including external controller, built-in controller, current transformer,
Power module, current sensor and Hall sensor, the built-in controller include fpga chip and ADC module, described external
Controller is connect with fpga chip, and the current transformer is connect with external controller, the output end and fpga chip of the ADC module
Connection, the power output end of the power module are connect with fpga chip, ADC module respectively；The current sensor and Hall
The output end of sensor is connect with the input terminal of ADC module respectively.
6. hub motor integrated driving control device according to claim 5, which is characterized in that the external controller is logical
It crosses optical fiber to connect with fpga chip, the current transformer is connect by optical fiber with external controller.
7. hub motor integrated driving control device according to claim 6, which is characterized in that the external controller is
Embedded type CPU control module, the embedded type CPU control module include dsp chip and man-machine interaction unit, the human-computer interaction
Unit is connect with dsp chip, and the dsp chip is connect by optical fiber with fpga chip, and the dsp chip passes through optical fiber and unsteady flow
Device connection.
8. hub motor integrated driving control device according to claim 7, which is characterized in that the hub motor is integrated
Drive dynamic control device further includes supply voltage detection unit and temperature sensor, the input terminal of the supply voltage detection unit with
The input terminal of power module connection, output end and ADC module connects；The output end of the temperature sensor and ADC module it is defeated
Enter end connection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821127491 | 2018-07-16 | ||
| CN2018211274916 | 2018-07-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110912492A (en) * | 2019-12-20 | 2020-03-24 | 苏州行远志成自动化科技有限公司 | Low-voltage alternating-current servo motor driving device |
| CN111579850A (en) * | 2020-04-16 | 2020-08-25 | 南京金龙新能源汽车研究院有限公司 | System and method for improving anti-interference performance of motor rack system |
-
2018
- 2018-09-17 CN CN201821520049.XU patent/CN208656679U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110912492A (en) * | 2019-12-20 | 2020-03-24 | 苏州行远志成自动化科技有限公司 | Low-voltage alternating-current servo motor driving device |
| CN111579850A (en) * | 2020-04-16 | 2020-08-25 | 南京金龙新能源汽车研究院有限公司 | System and method for improving anti-interference performance of motor rack system |
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