CN102991374B - A kind of passive rectification protection system of electric vehicle motor controller - Google Patents
A kind of passive rectification protection system of electric vehicle motor controller Download PDFInfo
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- CN102991374B CN102991374B CN201210543953.3A CN201210543953A CN102991374B CN 102991374 B CN102991374 B CN 102991374B CN 201210543953 A CN201210543953 A CN 201210543953A CN 102991374 B CN102991374 B CN 102991374B
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- electric vehicle
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- 230000001771 impaired effect Effects 0.000 abstract description 2
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- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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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
- Y02T10/72—Electric energy management in electromobility
Abstract
A kind of passive rectification protection system of electric vehicle motor controller; including electric machine controller; electric machine controller includes being internally provided with the IGBT power models of high speed diode, IGBT protection circuit module, IGBT drive module, DSP control module; current sensor and electronic switching device have been arranged in series in any two-phase in threephase cable between IGBT power models and motor; current signal is passed to DSP control module by described current sensor; meanwhile, DSP control module exports the level signal for controlling electronic switching device break-make.The present invention solves existing electric vehicle motor controller electric machine controller easily impaired problem under the passive rectification state of vehicle, so as to improve the use reliability of electric machine controller.It can be widely applied to electric vehicle motor controller field.
Description
Technical field
The present invention relates to a kind of passive rectification protection system, more particularly to a kind of passive rectification of electric vehicle motor controller
Protection system.
Background technology
With the fast development of electric automobile, properties of product and reliability requirement to its kernel component are also increasingly weighed
Will.Electric machine controller is as the control unit of power assembly of electric automobile, and its properties of product will directly affect the performance of vehicle
Index.On electric automobile, electric machine controller serves not only as motor-driven inverter, also serves as the rectification of Brake energy recovery
Device, existing controller protection and IGBT guard methods have ensured the peace of electric machine controller enough when as driver purposes
Full reliability service, but the existing final measure of protection scheme is all only off IGBT power models during as rectifier purposes
Output, but IGBT power models are due to the presence of built-in high speed diode, and electric machine controller still can carry out passive rectification, if
The electric current of passive rectification will damage IGBT module when exceeding the current limit of high speed diode, cause electric machine controller function to lose
Effect.
The content of the invention
It is an object of the invention to provide a kind of passive rectification protection system of electric vehicle motor controller, solve existing electronic
Automotive motor controller electric machine controller easily impaired problem under the passive rectification state of vehicle, so as to improve electric machine controller
Use reliability.
The technical solution adopted for the present invention to solve the technical problems is：A kind of passive rectification of electric vehicle motor controller
Protection system, including electric machine controller, electric machine controller include IGBT power models, the IGBT for being internally provided with high speed diode
Protection circuit module, IGBT drive module, DSP control module, described IGBT power models are respectively at motor three-phase electricity
Road is connected with high voltage bus both positive and negative polarity, and the signal of IGBT power models is conveyed to DSP by IGBT protection circuit module and controls mould
Block, meanwhile, DSP control module output pwm signal is transmitted to IGBT power models, IGBT protection electricity after being handled through IGBT drive module
Road module can send instructions to IGBT driving moulds simultaneously to be used to control the drive signal of IGBT protection circuit module to export；In IGBT
Current sensor and electronic switch dress have been arranged in series in any two-phase in threephase cable between power model and motor
Put, current signal is passed to DSP control module by described current sensor, meanwhile, DSP control module is exported for controlling electricity
The level signal of sub switch device break-make.
Described DSP control module is provided with a current threshold for being less than high speed diode conveyance capacity, when detecting
Phase current values when being more than or equal to this threshold value, DSP control module electron switching device sends open command, electronic switch dress
Put the connection for disconnecting IGBT power models and motor.
When vehicle performs Brake energy recovery operating mode, IGBT power models are led to motor brake power generating energy
Dynamic rectification, if now IGBT protection circuit module detects IGBT power model operation irregularities, will give IGBT drive circuit
Module instruction forbids its drive signal to export, while fault message is fed back to DSP control module by IGBT protection circuit module,
DSP control module, which is received, stops pwm signal output after fault message, IGBT power models enter passive rectification working condition；
DSP control module can set a current threshold for being less than high speed diode conveyance capacity, the electricity detected when current sensor
When flow valuve is more than or equal to this threshold value, DSP control module electron switching device sends open command, and electronic switching device breaks
The connection of IGBT power models and motor is opened, IGBT power models is entered the shape that do not work from passive rectification working condition
State.
Described IGBT power models operation irregularity include IGBT power models excess temperature, IGBT power models bus overvoltage or
Under-voltage, IGBT power models upper and lower bridge arm is straight-through, IGBT power models excessively stream, IGBT power module driving circuit failures.
It is preferred that, described electronic switching device is high-voltage relay；Electronic switching device is that bipolar-type power crystal is opened
Guan Guan.
Beneficial effects of the present invention：Current signal is timely passed to DSP controls by increasing by two current sensors
Module, DSP control module controls the break-make of two electronic switching devices to realize the overcurrent protection to electric machine controller, improves electricity
The service life of machine controller, and it is simple in construction, cost is low.
With reference to the accompanying drawings and examples, the present invention is described in further detail.
Brief description of the drawings
Fig. 1 is circuit theory diagrams of the invention.
Embodiment
A kind of passive rectification protection system of electric vehicle motor controller, as described in Figure 1, including electric machine controller, motor
Controller include being internally provided with the IGBT power models of high speed diode, IGBT protection circuit module, IGBT drive module,
DSP control module, described IGBT power models are connected respectively at motor three-phase circuit with high voltage bus both positive and negative polarity, IGBT
The signal of power model is conveyed to DSP control module by IGBT protection circuit module, meanwhile, DSP control module output PWM letters
IGBT power models are transmitted to after number being handled through IGBT drive module, IGBT protection circuit module can send instructions to IGBT drives simultaneously
Dynamic model is used to control the drive signal of IGBT protection circuit module to export；Three-phase electricity between IGBT power models and motor
Current sensor and electronic switching device it have been arranged in series in any two-phase in cable, described current sensor is by current signal
DSP control module is passed to, meanwhile, DSP control module exports the level signal for controlling electronic switching device break-make.
Described DSP control module is provided with a current threshold for being less than high speed diode conveyance capacity, when detecting
Phase current values when being more than or equal to this threshold value, DSP control module electron switching device sends open command, electronic switch dress
Put the connection for disconnecting IGBT power models and motor.Described electronic switching device is high-voltage relay；Electronic switch is filled
It is set to bipolar-type power crystal switch pipe.
When vehicle performs Brake energy recovery operating mode, IGBT power models are led to motor brake power generating energy
Dynamic rectification, if now IGBT protection circuit module detects IGBT power model operation irregularities, will give IGBT drive circuit
Module instruction forbids its drive signal to export, while fault message is fed back to DSP control module by IGBT protection circuit module,
DSP control module, which is received, stops pwm signal output after fault message, IGBT power models enter passive rectification working condition；
DSP control module can set a current threshold for being less than high speed diode conveyance capacity, the electricity detected when current sensor
When flow valuve is more than or equal to this threshold value, DSP control module electron switching device sends open command, and electronic switching device breaks
The connection of IGBT power models and motor is opened, IGBT power models is entered the shape that do not work from passive rectification working condition
State.So as to protect electric machine controller not improve its reliability used due to the excessive caused damage of passive rectified current.
Described IGBT power models operation irregularity include IGBT power models excess temperature, IGBT power models bus overvoltage or
Under-voltage, IGBT power models upper and lower bridge arm is straight-through, IGBT power models excessively stream, IGBT power module driving circuit failures.
Claims (5)
1. a kind of passive rectification protection system of electric vehicle motor controller, including electric machine controller, electric machine controller includes interior
Portion is provided with the IGBT power models of high speed diode, IGBT protection circuits module, IGBT drive modules, DSP control moulds
Block, described IGBT power models are connected respectively at motor three-phase circuit with high voltage bus both positive and negative polarity, IGBT power moulds
The signal of block is conveyed to DSP control modules by IGBT protection circuit modules, meanwhile, DSP control modules output PWM signals
IGBT power models are transmitted to after being handled through IGBT drive module, IGBT protection circuits module can send instructions to IGBT simultaneously
Driving mould is used to control the drive signal of IGBT protection circuit modules to export；It is characterized in that：In IGBT power models with driving
Current sensor and electronic switching device, described electric current have been arranged in series in any two-phase in threephase cable between dynamic motor
Current signal is passed to DSP control modules by sensor, meanwhile, DSP control modules are exported for controlling electronic switching device
The level signal of break-make;
When vehicle performs Brake energy recovery operating mode, IGBT power models are carried out actively to motor brake power generating energy
Rectification, if now IGBT protection circuits module detects IGBT power model operation irregularities, will give IGBT drive circuits
Module instruction forbids its drive signal to export, while fault message is fed back to DSP control modules by IGBT protection circuits module,
DSP control modules receive stopping PWM signal outputs after fault message, and IGBT power models enter passive rectification work shape
State；DSP control modules can set a current threshold for being less than high speed diode conveyance capacity, when current sensor is detected
Current value be more than or equal to this threshold value when, DSP control module electron switching devices send open command, electronic switch
Device disconnects the connection of IGBT power models and motor, IGBT power models is entered not from passive rectification working condition
Working condition.
2. the passive rectification protection system of electric vehicle motor controller according to claim 1, it is characterised in that：It is described
DSP control modules be provided with one be less than high speed diode conveyance capacity current threshold, when the phase current values detected are big
When equal to this threshold value, DSP control module electron switching devices send open command, and electronic switching device disconnects IGBT
The connection of power model and motor.
3. the passive rectification protection system of electric vehicle motor controller according to claim 1, it is characterised in that：It is described
IGBT power models operation irregularity include IGBT power models excess temperature, IGBT power models bus overvoltage or under-voltage, IGBT
Power model upper and lower bridge arm is straight-through, IGBT power models excessively stream, IGBT power module driving circuit failures.
4. the passive rectification protection system of electric vehicle motor controller according to claim 1, it is characterised in that：It is described
Electronic switching device be high-voltage relay.
5. the passive rectification protection system of electric vehicle motor controller according to claim 1, it is characterised in that：It is described
Electronic switching device be bipolar-type power crystal switch pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210543953.3A CN102991374B (en) | 2012-12-15 | 2012-12-15 | A kind of passive rectification protection system of electric vehicle motor controller |
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| CN201210543953.3A CN102991374B (en) | 2012-12-15 | 2012-12-15 | A kind of passive rectification protection system of electric vehicle motor controller |
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| CN102991374A CN102991374A (en) | 2013-03-27 |
| CN102991374B true CN102991374B (en) | 2017-07-21 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104442444B (en) * | 2013-09-18 | 2017-10-31 | 比亚迪股份有限公司 | The electric machine control system of electric automobile and the electric automobile with it |
| CN104199370B (en) * | 2014-09-18 | 2018-01-09 | 奇瑞新能源汽车技术有限公司 | The security monitoring circuit and its control method of a kind of vehicle motor controller |
| CN104627019B (en) * | 2015-01-30 | 2017-06-06 | 风度（常州）汽车研发院有限公司 | Motor in electric automobile control device |
| US9896912B2 (en) * | 2015-05-13 | 2018-02-20 | Baker Hughes, A Ge Company, Llc | Active rectifier for downhole applications |
| CN105182855B (en) * | 2015-09-23 | 2018-04-06 | 上海大学 | The automobile controller and its control method protected when dsp chip fails |
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| JP2010284078A (en) * | 2004-11-29 | 2010-12-16 | Mitsubishi Electric Corp | Inverter device |
| CN102474198A (en) * | 2009-11-02 | 2012-05-23 | 株式会社东芝 | Inverter device |
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| KR100231214B1 (en) * | 1997-07-26 | 1999-11-15 | 구자홍 | Over current protection device of inverter circuit |
| CN1719680A (en) * | 2004-07-07 | 2006-01-11 | 丰田自动车株式会社 | Can detect the unusual supply unit of the electric current that flows through drive circuit |
| JP2010284078A (en) * | 2004-11-29 | 2010-12-16 | Mitsubishi Electric Corp | Inverter device |
| JP2007195343A (en) * | 2006-01-19 | 2007-08-02 | Nissan Motor Co Ltd | Inverter device |
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Owner name: CHERY NEW ENERGY AUTOMOBILE TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SAIC CHERY AUTOMOBILE CO., LTD. Effective date: 20150702 |
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Effective date of registration: 20150702 Address after: 241000 Yijiang, Anhui Province, Jin Hua Road, No. 226, South Road, No. Applicant after: New-energy automobile Technology Co., Ltd. of Cherry Address before: 241000 Wuhu economic and Technological Development Zone, Anhui, No. 8 Changchun Road Applicant before: Saic Chery Automobile Co., Ltd. |
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Address after: 241000 No. 226 Jin Hua Nan Road, Yijiang hi tech Industrial Development Zone, Anhui, Wuhu Patentee after: Chery New Energy Automobile Co.,Ltd. Address before: 241000 No. 226 Hua Jin South Road, Yijiang District, Anhui, Wuhu Patentee before: CHERY NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |