CN203423639U - Large-power motor drive controller for new energy automobile - Google Patents
Large-power motor drive controller for new energy automobile Download PDFInfo
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- CN203423639U CN203423639U CN201320565711.4U CN201320565711U CN203423639U CN 203423639 U CN203423639 U CN 203423639U CN 201320565711 U CN201320565711 U CN 201320565711U CN 203423639 U CN203423639 U CN 203423639U
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Abstract
The utility model discloses a large-power motor drive controller for a new energy automobile, and relates to the technical field of motor control devices. The large-power motor drive controller for the new energy automobile comprises a control board, a driver board, a driving parameter collection module, a speed given module, a 12V power supply module and a high-voltage power supply module, wherein the driving parameter collection module and the speed given module are connected with the input end of the control board; the 12V power supply module supplies power for the control board; the output end of the control board is connected with the input end of the driver board; the high-voltage power supply module supplies power for the driver board; and the output end of the driver board is connected with the motor. The controller disclosed by the utility model does not use a current sensor, and has the advantages of simple structure, low manufacturing cost and the like.
Description
Technical field
The utility model relates to motor control assembly technical field, relates in particular to a kind of used for electric vehicle high-power brushless electric machine controller.
Background technology
Pure electric automobile is to take vehicle power as power, with power wheel, travels, and meets the vehicle that law on road traffic safety rule require.Advantage is not pernicious gas of exhaust emission atmosphere itself, and noise is low, the internal-combustion engines vehicle that use cost is significantly the energy lower than conventional gasoline diesel oil.The composition of electric automobile comprises: driven by power and control system, the mechanical systems such as actuating force transmission, complete the equipment of set task etc.Wherein core is exactly driven by power and control system, and this is also the maximum difference that is different from internal-combustion engines vehicle.Driven by power and control system be by drive motor, the compositions such as power supply and speed regulation control device of motor, and other devices of electric automobile are identical with internal-combustion engines vehicle.The power of electric automobile is provided by motor, directly affects performance and the fail safe of automobile for the control performance of motor.The development of nearest 20 years of DC brushless motor process, safe and reliable with it, cheap, the features such as production technology maturation have progressively replaced traditional direct current machine and AC induction motor.But its control technology is comparatively complicated, existing product is substantially all judge motor rotor position and commutate with current sensor, and cost is higher, and connection line is complicated, poor stability.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of new-energy automobile heavy-duty motor driving governor, and described controller does not use current sensor, has the features such as simple in structure, low cost of manufacture.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of new-energy automobile heavy-duty motor driving governor, it is characterized in that comprising control board, drive plate, driving parameter acquisition module, the given module of the speed of a motor vehicle, 12V power module and high-voltage power module, described driving parameter acquisition module is connected with the input of control board with the given module of the speed of a motor vehicle, 12V power module is control board power supply, the output of control board is connected with the input of drive plate, described high-voltage power module provides power supply for drive plate, the output of described drive plate is connected with motor.
Preferably, the master chip of described control board is used the MC56F8037 type dsp processor of Freescale company.
Preferably, described controller also comprises temperature collect module, and described temperature collect module gathers respectively the temperature of motor and control board.
The beneficial effect that adopts technique scheme to produce is: the control board of controller is used the MC56F8037 type dsp processor of Freescale company as main control chip, this chip can be realized the collection of motor three-phase current, busbar voltage gathers, 6 road pwm signals produce, controller IGBT module temperature and motor temperature collection, outside signal for faster collection, braking signal collection, neutral position sliding signals collecting, and carry out real-time data transmission with instrument or other equipment.The current vehicle operation data that motor drive controller gathers and driver's driving intention Data Control the operating state of motor.Described controller does not use current sensor to gather the data of three-phase current, the feature such as have that cost is low, connection line is simple, stability is high and fail safe is high.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is theory diagram of the present utility model;
Fig. 2 is that in the utility model, control board produces PWM waveform schematic diagram;
Fig. 3 is the current waveform sequential chart producing;
Fig. 4 is major software of the present utility model flow chart.
Embodiment
As shown in Figure 1, a kind of new-energy automobile heavy-duty motor driving governor, comprises control board, drive plate, driving parameter acquisition module, the given module of the speed of a motor vehicle, 12V power module and high-voltage power module.Described driving parameter acquisition module is connected with the input of control board with the given module of the speed of a motor vehicle, 12V power module is control board power supply, the output of control board is connected with the input of drive plate, and described high-voltage power module provides power supply for drive plate, and the output of described drive plate is connected with motor.
Control board selects 16 MC56F8037 type dsp controllers of Freescale as main control chip, this chip adopts the efficient 56800E kernel of Freescale, up to 32M core frequency, with 6 passage PWM controllers, two 8 Channel 12-Bit AD converter, one road MSCAN communication interface, supports CAN2.0B, and speed can reach 1M.This chip can be realized the collection of motor three-phase current, busbar voltage gathers, 6 road pwm signals produce, controller IGBT module temperature and motor temperature collection, outside signal for faster collection, braking signal collection, neutral position sliding signals collecting, and carry out the communication module of real-time data transmission with instrument or other equipment.The current vehicle operation data that motor drive controller gathers and driver's driving intention Data Control the operating state of motor.
In two 8 Channel 12-Bit AD converter, 3 tunnels are for current sample, and 2 tunnels are for voltage detecting, and 2 tunnels are for temperature detection, and 1 tunnel gathers speed information, and 1 tunnel gathers braking information.Described DC brushless motor controller adopts 6 road PWM outputs to control and drives IGBT module, and the pwm switching signal of MCU output, through signal amplification circuit and isolation protective circuit and the electrical connection of IGBT driving stage, is realized driver power input/output function.Described motor driver adopts back electromotive force method by current zero-crossing point technology for detection motor rotor position and rotating speed.Described communication module adopts a road CAN digital communication port CANH, CANL ，Yi road serial communication port SCIRXD, and SCITXD, CAN PORT COM is responsible for vehicle miscellaneous part as communications such as battery management systems, and serial communication provides instrument to show data.
Wherein control board produces 6 road PWM waveforms, PWM waveform generation principle as shown in Figure 2, the full-bridge being formed by six IGBT of VT1-VT6, wherein two IGBT form one road and bridge arm, totally three road and bridge arm, in same brachium pontis, two IGBT can not be simultaneously open-minded, is complement mode.Three road and bridge arm connect successively rear generation current waveform as shown in Figure 3, wherein each road waveform is all to return positive similar sine wave by forward is negative, when waveform arrives zero point, commutates.Can detection rotor position by the order of waveform and the position of zero crossing, the time difference by two zero crossings in same road can obtain current rotating speed.The change of the duty ratio of PWM can be controlled the number of the energy that motor obtains within the unit interval, and then the speed of control rate.Its software flow as shown in Figure 4, first carries out initialization PWM, and ADC opens and interrupts and timer, then detects the signals such as electric current, voltage, temperature, rotating speed.When condition meets, according to given vehicle speed signal, be converted to rotating speed as rotating speed of target, when rotating speed of target is different with current rotating speed, start pi regulator and regulate, change rotating speed.When condition does not meet, carry out shutdown operation, all flag bits that reset, wait for start-up and operation operation next time.
Described control board adopts large area multiloop radiator heat-dissipation, and base plate of radiator is copper coin, fixes with power model, and another side is connected with water-cooling heat radiating system, and refrigerant is pure water.Temperature collect module gathers motor and controller temperature, delivers to main control chip, and main control chip determines size and the hot guard mode of controller power according to these temperature.Busbar voltage gathers precision resistance and carries out dividing potential drop, amplifies and sends into main control chip after filtering, and main control chip adopts software filtering, carries out the filtering of timing multicomponent acquisition, has guaranteed that the accuracy of bus voltage measurement can reach 0.5V.
Motor control method, first step reset motor, the given set current waveform of electric motor starting Time Controller, resets to the rotor of motor.Second step starts, and reset rear motor rotor-position judges the position of current rotor by the current waveform returning, and according to rotor current location, central processing unit output waveform is controlled, and makes motor start-up.The 3rd step speed, calculates motor rotating speed of target according to the given speed of a motor vehicle of the given module of the speed of a motor vehicle after motor start-up, according to rotating speed of target, adjusts motor speed, and this process adopts the PI control algolithm of closed loop to adjust PWM duty ratio.The 4th step is shut down, and receives to adjust PWM duty ratio after halt instruction and make zero gradually, until motor speed is zero.
The control logic of controller is: 1, electric machine controller electrifying startup, and electrokinetic cell is to controller main circuit power supply, and MCU carries out system resource initialization and detects busbar voltage, enters interruption subroutine after busbar voltage meets power demands.2, reading current, voltage, rotating speed, the go forward side by side line number value conversion of the signals such as braking.3, according to the three-phase current signal collecting, calculate, obtain current rotating speed and the rotor-position of motor, according to tach signal, brake signal etc. calculate PWM duty ratio.4, according to the duty ratio of PWM, in interrupting, PWM resets PWM waveform parameter, drive motors.5, after electric machine rotation, produce inverse electromotive force, inverse electromotive force carries out closed-loop control after being got by MCU, makes motor speed meet set demand.
The control board of controller is used the MC56F8037 type dsp processor of Freescale company as main control chip, this chip can be realized the collection of motor three-phase current, busbar voltage gathers, 6 road pwm signals produce, controller IGBT module temperature and motor temperature collection, outside signal for faster collection, braking signal collection, neutral position sliding signals collecting, and carry out real-time data transmission with instrument or other equipment.The current vehicle operation data that motor drive controller gathers and driver's driving intention Data Control the operating state of motor.Described controller does not use current sensor to gather the data of three-phase current, the feature such as have that cost is low, connection line is simple, stability is high and fail safe is high.
Applied specific case herein principle of the present utility model and execution mode thereof are set forth, the explanation of above embodiment is just with helping understand method of the present utility model and core concept thereof.It should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not depart from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection range of the utility model claim.
Claims (3)
1. a new-energy automobile heavy-duty motor driving governor, it is characterized in that comprising control board, drive plate, driving parameter acquisition module, the given module of the speed of a motor vehicle, 12V power module and high-voltage power module, described driving parameter acquisition module is connected with the input of control board with the given module of the speed of a motor vehicle, 12V power module is control board power supply, the output of control board is connected with the input of drive plate, described high-voltage power module provides power supply for drive plate, and the output of described drive plate is connected with motor.
2. a kind of new-energy automobile heavy-duty motor driving governor according to claim 1, the master chip that it is characterized in that described control board is used the MC56F8037 type dsp processor of Freescale company.
3. according to right, will remove a kind of new-energy automobile heavy-duty motor driving governor described in 1, it is characterized in that described controller also comprises temperature collect module, described temperature collect module gathers respectively the temperature of motor and control board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320565711.4U CN203423639U (en) | 2013-09-12 | 2013-09-12 | Large-power motor drive controller for new energy automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320565711.4U CN203423639U (en) | 2013-09-12 | 2013-09-12 | Large-power motor drive controller for new energy automobile |
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| CN203423639U true CN203423639U (en) | 2014-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320565711.4U Expired - Fee Related CN203423639U (en) | 2013-09-12 | 2013-09-12 | Large-power motor drive controller for new energy automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106031022A (en) * | 2014-02-27 | 2016-10-12 | 株式会社电装 | Motor drive device |
-
2013
- 2013-09-12 CN CN201320565711.4U patent/CN203423639U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106031022A (en) * | 2014-02-27 | 2016-10-12 | 株式会社电装 | Motor drive device |
| CN106031022B (en) * | 2014-02-27 | 2018-09-04 | 株式会社电装 | Motor drive |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 Termination date: 20200912 |
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| CF01 | Termination of patent right due to non-payment of annual fee |