CN103640495A - Electric vehicle wheel motor drive control system - Google Patents
Electric vehicle wheel motor drive control system Download PDFInfo
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- CN103640495A CN103640495A CN201310723931.XA CN201310723931A CN103640495A CN 103640495 A CN103640495 A CN 103640495A CN 201310723931 A CN201310723931 A CN 201310723931A CN 103640495 A CN103640495 A CN 103640495A
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- magnet synchronous
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- synchronous wheel
- wheel motor
- inverter
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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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- 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
An electric vehicle wheel motor drive control system belongs to the technical field of electric vehicle driving, and comprises an inverter and two permanent magnet synchronous wheel motors, wherein the inverter is used for converting the DC electric energy of a high-voltage direct-current power supply on an electric vehicle into AC electric energy; the permanent magnet synchronous wheel motors are used for converting the AC electric energy into mechanical energy required by the whole vehicle; the inverter and the permanent magnet synchronous wheel motors are in high voltage electrical connection and signal connection with each other; the inverter comprises a signal acquisition and processing unit, a DSP (digital signal processor) control unit, a driving and logic interlocking unit and a main circuit. As the permanent magnet synchronous wheel motors are controlled by the inverter, and the interlocking of the working states of the permanent magnet synchronous wheel motors is realized, the safe running of the permanent magnet synchronous wheel motors and the whole electric vehicle is realized, and the innovativeness is favorable.
Description
Technical field
An electric car wheel limit driving control system for electric machine, belongs to electronlmobil actuation techniques field.
Background technology
Electronlmobil advantage with environmental protection energy-conservation because of it, becomes the research emphasis of current automotive technology and auto-industry sustainable development.It is a kind of more advanced electronlmobil type of drive that wheel motor drives, it has given up the mechanical transmission components such as traditional retarder, power-transfer clutch, Transmission Bridge, by motor directly or be indirectly arranged on wheel by retarder, at aspects such as power configuration, drive mechanism, handling, energy utilization, there is unique technical advantage, be mainly manifested in: wheel motor direct drive of wheel, simplified transmission device, driving efficiency is improved; The propulsive effort of wheel motor can directly be controlled, flexible to operation, can realize electronic differential by the propulsive effort of reasonable control wheel, and then improves car load road-holding property; In addition, wheel motor drive system belongs to multi-motors drive system, can make car load further be optimized at aspects such as power system control, braking energy feedbacks.
Wheel motor drive system arrangements is more flexible, can be used as two front-wheels or two trailing wheels or four wheels that wheel motor is assemblied in electronlmobil, makes accordingly electronlmobil become f-w-d, back-wheel drive or four wheel drive.In general wheel motor drive system, each wheel motor is furnished with an inverter, and each inverter is controlled the work of a wheel motor according to car load power demand and chaufeur driving intention.Co-ordination between inverter is conventionally issued by CAN bus the instruction that inverter is relevant according to the mode of operation of car load and wheel motor by entire car controller and is realized.For example, for the motor-driven vehicle of dual wheel rims, when vehicle one side wheel motor breaks down, the information that first entire car controller receives by CAN bus is judged the fault that this wheel motor occurs, and pass on instruction to this wheel motor inverter by CAN bus, allow it control wheel motor and stop its work, meanwhile, by CAN bus, pass on instruction to go to stop opposite side machine operation to opposite side wheel motor inverter, and then guarantee car load safety.In this process, due to the delay of CAN bus message and the reasons such as corresponding time of inverter all can make two wheel motors can not synchronous coordination work, thereby car load safe and reliable operation is produced to great impact.
The present invention adopts the co-ordination of two wheel motors of an inverter control, when a wheel motor breaks down, inverter can judge rapidly, and two wheel motors are taked to corresponding action, is not subject to the impact of the external world and communication bus delay or asynchronous factor.Therefore, the present invention is significant to improving reliability and the safety of the electronlmobil that adopts wheel motor drive system.
Summary of the invention
The object of this invention is to provide a kind of electric car wheel limit driving control system for electric machine, can be applied to the elec. vehicle of Two-wheeled, this system can carry out synchronously two wheel motors, coordinate controlling.
For achieving the above object, the electric car wheel limit driving control system for electric machine the present invention relates to consists of an inverter and two permanent magnet synchronous motors.Inverter and permagnetic synchronous motor have high-voltage electrical apparatus and are connected with signal and are connected.
Inverter is by the high-voltage DC power supply on electronlmobil, and as fuel cell, electrical generator, battery pack or super capacitor group, the direct current energy of output is converted to the AC energy that permagnetic synchronous motor needs.Inverter can receive the control command from vehicle control unit of electric vehicle by CAN bus.Inverter comprises signal acquisition process unit, DSP control unit, driving and logical interlock unit and four component parts of power circuit.
Signal acquisition process unit: the acquisition and processing that carries out being used for to signals such as whole vehicle control signal, power circuit output current phase, permanent-magnet synchronous wheel motor rotating speed temperature, and the information after processing is sent to DSP control unit and driving and logical interlock unit.Wherein whole vehicle control signal, from entire car controller, mainly reflects car load running state, as current vehicle speed, and driver's operation intention, and as wheel steering angle, with instruction, the torque instruction obtaining according to driver's pedal as entire car controller etc.; The electric current that the power cable that power circuit output current phase is connected from high-voltage electrical apparatus between inverter and permanent-magnet synchronous wheel motor flows through; Permanent-magnet synchronous wheel motor rotating speed temperature signal is from magslip and the temperature sensor of permagnetic synchronous motor inside.
DSP control unit: be that TMS320F28335 chip is core by a slice model, the information providing according to signal acquisition process unit, adopts vector control method and PI to regulate the driving signal that obtains six road power circuit IGBT.
Drive and logical interlock unit: have two effects, the one, DSP control unit output Liu road drives signal to carry out power gain and Shape correction; The 2nd, according to the output signal of signal acquisition process unit, carry out logical interlock.The effect of logical interlock is to make two permanent magnet synchronous motors co-ordination, and especially, when a permanent-magnet synchronous wheel motor breaks down while quitting work, another permanent-magnet synchronous wheel motor also can quit work.Concrete logical interlock control policy is as follows:
When the difference of two permanent-magnet synchronous wheel motor rotating speeds is greater than setting threshold, blocks 12 road IGBT and drive signal.The threshold value setting is determined by current vehicle speed and wheel steering angle;
When any phase current of two permanent-magnet synchronous wheel motors surpass wheel motor maximum functional phase current 120% time, block 12 road IGBT simultaneously and drive signals;
When the operating temperature of any permanent-magnet synchronous wheel motor meets or exceeds permanent-magnet synchronous wheel motor maximum permission operating temperature 80% but allows operating temperature lower than permanent-magnet synchronous wheel motor is maximum simultaneously, the output torque that DSP controls permanent-magnet synchronous wheel motor is 50% of car load demand torque;
When the operating temperature of any permanent-magnet synchronous wheel motor meets or exceeds the maximum permission of permanent-magnet synchronous wheel motor operating temperature, block 12 road IGBT and drive signals.
Power circuit: consisting of 12 IGBT and filter capacitor, is the AC energy that two permanent-magnet synchronous wheel motors need according to driving signal the direct current energy inversion of car load high tension supply.
The present invention is different from the drive system that every wheel motor has separately separate inverter unit, with two permanent-magnet synchronous wheel motors of an inverter control, realized the real-time interlocking of two permanent-magnet synchronous wheel motor mode of operations, guarantee the safe operation of two permanent-magnet synchronous wheel motors and electric automobile whole, there is good novelty.
Accompanying drawing explanation
Fig. 1 electric car wheel limit driving control system for electric machine constructional drawing
The specific embodiment
With reference to accompanying drawing, describe the specific embodiment of the present invention below in detail.
As Fig. 1, provided electric car wheel limit driving control system for electric machine constructional drawing.As can be seen from Figure: whole system comprises an inverter and two permanent-magnet synchronous wheel motors.Inverter and permagnetic synchronous motor have high-voltage electrical apparatus and are connected with signal and are connected.
Inverter comprises signal acquisition process unit, DSP control unit, driving and logical interlock unit and power circuit.Wherein, signal acquisition process unit is used for the acquisition and processing to signals such as whole vehicle control signal, power circuit output current phase, permanent-magnet synchronous wheel motor rotating speed temperature, and the information after processing is sent to DSP control unit and driving and logical interlock unit; DSP control unit is that TMS320F28335 chip is core by a slice model, according to this information, adopt vector control method to obtain the driving signal of the IGBT of power circuit, drive signal to obtain power gain and Shape correction in driving and logical interlock unit, according to the output signal of signal acquisition process unit, carry out logical interlock, and deliver to power circuit driving IGBT work simultaneously; Power circuit consists of 12 IGBT and filter capacitor, according to driving signal, the direct current energy inversion of car load high tension supply, is the AC energy that two permanent-magnet synchronous wheel motors need.
Drive with the logical interlock control policy of logical interlock unit as follows: when the difference of two permanent-magnet synchronous wheel motor rotating speeds is greater than setting threshold, blocks 12 road IGBT and drive signal; The threshold value setting is determined by current vehicle speed and wheel steering angle; When any phase current of two permanent-magnet synchronous wheel motors surpass wheel motor maximum functional phase current 120% time, block 12 road IGBT simultaneously and drive signals; When the operating temperature of any permanent-magnet synchronous wheel motor meets or exceeds permanent-magnet synchronous wheel motor maximum permission operating temperature 80% but allows operating temperature lower than permanent-magnet synchronous wheel motor is maximum simultaneously, the output torque that DSP controls permanent-magnet synchronous wheel motor is 50% of car load demand torque; When the operating temperature of any permanent-magnet synchronous wheel motor meets or exceeds the maximum permission of permanent-magnet synchronous wheel motor operating temperature, block 12 road IGBT and drive signals.
Two permanent-magnet synchronous wheel motors are converted to by AC energy the mechanical energy that car load needs.The magslip that is positioned at two permanent-magnet synchronous wheel motor inside produces rotating speed temperature signal with temperature sensor and is connected and is transferred to inverter by signal.
Claims (3)
1. an electric car wheel limit driving control system for electric machine, is characterized in that, an inverter and two permanent-magnet synchronous wheel motors, consists of.Inverter is connected by three-phase alternating current cable and rotating speed temperature signal line with every permanent-magnet synchronous wheel motor.Inverter, by rotating speed temperature and the input phase current of permanent-magnet synchronous wheel motor, adopts vector control mode to control permanent-magnet synchronous wheel motor.
2. according to the electric car wheel limit driving control system for electric machine described in claims 1, it is characterized in that, inverter comprises signal acquisition process unit, DSP control unit, driving and logical interlock unit and four parts of power circuit;
Signal acquisition process unit is used for the acquisition and processing to signals such as whole vehicle control signal, power circuit output current phase, permanent-magnet synchronous wheel motor rotating speed temperature, and the information after processing is sent to DSP control unit and driving and logical interlock unit;
DSP control unit is core by a slice TMS320F28335 chip, and the information providing according to signal acquisition process unit adopts vector control method to obtain the driving signal of Shi Er road power circuit IGBT;
DSP control unit output Liu road drives signal to be amplified and to process in driving and logical interlock unit, and delivers to power circuit driving IGBT work; Drive signal to obtain power gain and Shape correction in driving and logical interlock unit, according to the output signal of signal acquisition process unit, carry out logical interlock simultaneously;
Power circuit consists of 12 IGBT and filter capacitor, according to driving signal, the direct current energy inversion of car load high tension supply, is the AC energy that two permanent-magnet synchronous wheel motors need.
3. according to the electric car wheel limit driving control system for electric machine described in claims 1, it is characterized in that, inverter adopts following logical interlock control policy:
When the difference of two permanent-magnet synchronous wheel motor rotating speeds is greater than setting threshold, blocks 12 road IGBT and drive signal.The threshold value setting is determined by current vehicle speed wheel steering angle;
When any phase current of two permanent-magnet synchronous wheel motors surpass wheel motor maximum functional phase current 120% time, block 12 road IGBT simultaneously and drive signals;
When the operating temperature of any permanent-magnet synchronous wheel motor meet or exceed permanent-magnet synchronous wheel motor maximum allow operating temperature 80% but while allowing operating temperature lower than permanent-magnet synchronous wheel motor is maximum, the output torque that DSP controls permanent-magnet synchronous wheel motor is 50% of car load demand torque simultaneously;
When the operating temperature of any permanent-magnet synchronous wheel motor meets or exceeds the maximum permission of permanent-magnet synchronous wheel motor operating temperature, block 12 road IGBT and drive signals.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310723931.XA CN103640495B (en) | 2013-12-25 | 2013-12-25 | Electric vehicle wheel motor drive control system |
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| CN201310723931.XA CN103640495B (en) | 2013-12-25 | 2013-12-25 | Electric vehicle wheel motor drive control system |
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| CN103640495B CN103640495B (en) | 2017-01-11 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150878A (en) * | 2015-09-15 | 2015-12-16 | 重庆通赛机电有限公司 | Automotive motor drive control system |
| CN106647708A (en) * | 2016-12-27 | 2017-05-10 | 清华大学 | Fault diagnosis system of electric vehicle motor driving system |
| CN107861494A (en) * | 2017-10-24 | 2018-03-30 | 厦门金龙汽车新能源科技有限公司 | The real-time detection of multi_motor control device and Synchronization |
| CN109849635A (en) * | 2018-12-27 | 2019-06-07 | 清华大学苏州汽车研究院（吴江） | A kind of cooling system and electric car of hub motor for electric automobile |
| CN113386572A (en) * | 2021-06-30 | 2021-09-14 | 重庆长安汽车股份有限公司 | Master-slave redundancy high-voltage safety monitoring system and automobile |
| CN114019373A (en) * | 2021-11-01 | 2022-02-08 | 常州机电职业技术学院 | Efficient servo motor automatic test system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150878A (en) * | 2015-09-15 | 2015-12-16 | 重庆通赛机电有限公司 | Automotive motor drive control system |
| CN106647708A (en) * | 2016-12-27 | 2017-05-10 | 清华大学 | Fault diagnosis system of electric vehicle motor driving system |
| CN107861494A (en) * | 2017-10-24 | 2018-03-30 | 厦门金龙汽车新能源科技有限公司 | The real-time detection of multi_motor control device and Synchronization |
| CN107861494B (en) * | 2017-10-24 | 2019-07-09 | 厦门金龙汽车新能源科技有限公司 | The real-time detection and Synchronization of multi_motor control device |
| CN109849635A (en) * | 2018-12-27 | 2019-06-07 | 清华大学苏州汽车研究院（吴江） | A kind of cooling system and electric car of hub motor for electric automobile |
| CN113386572A (en) * | 2021-06-30 | 2021-09-14 | 重庆长安汽车股份有限公司 | Master-slave redundancy high-voltage safety monitoring system and automobile |
| CN114019373A (en) * | 2021-11-01 | 2022-02-08 | 常州机电职业技术学院 | Efficient servo motor automatic test system |
| CN114019373B (en) * | 2021-11-01 | 2022-06-07 | 常州机电职业技术学院 | Efficient servo motor automatic test system |
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| CN103640495B (en) | 2017-01-11 |
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