CN103204081B - Motor control system and method for electric cars - Google Patents
Motor control system and method for electric cars Download PDFInfo
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- CN103204081B CN103204081B CN201310119450.8A CN201310119450A CN103204081B CN 103204081 B CN103204081 B CN 103204081B CN 201310119450 A CN201310119450 A CN 201310119450A CN 103204081 B CN103204081 B CN 103204081B
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- motor
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- vehicle speed
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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
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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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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Abstract
The invention provides a motor control system for electric cars. The motor control system comprises a controller unit, a first drive unit, a second drive unit, a first motor and a second motor. The controller unit receives speed signals and accelerator signals. When the accelerator signals are valid, the controller unit controls operating states of the first drive unit and the second drive unit to allow the first motor or second motor to operate or not according to whether the magnitude of the speed signals is larger than the preset speed value or not. The motor control system allows for alternative operation of the two motors so that time division operation is achieved, the functions of the motors are protected, and electricity is saved to the maximum extent.
Description
Technical field
The present invention relates to electric automobiles, particularly relate to a kind of electric machine control system and method for electronlmobil.
Background technology
Become the background of the mainstream of the times at low-carbon economy under, electronlmobil becomes the Main way of current development of automobile.Along with constantly advancing of electronlmobil, high-performance motor and controller are come out one after another, but the power consumption of heavy-duty motor is very serious, particularly under the operating mode of vehicle frequent starting, under the traffic environment increasingly worsened, use low-power machine to be a kind of wise move during startup, electric energy can be saved to greatest extent, extend the continual mileage of car load.
Summary of the invention
The invention provides a kind of electronlmobil Double Motor Control System, realize the time-sharing work of two motors, not only can protect motor but also electric energy can be saved to greatest extent.
For achieving the above object, the invention provides a kind of electronlmobil Double Motor Control System, its technical scheme is:
Comprise: controller unit, the first driver element, the second driver element, the first motor and the second motor;
Described controller unit receives vehicle speed signal and throttle signal, and when throttle signal is effective, according to the size of vehicle speed signal, controller unit controls the mode of operation of the first driver element and the second driver element to realize the first motor or the second machine operation.
Preferably, described first driver element and the second driver element are respectively the first relay and the second relay, are connected to the first relay and the second relay between the input end of described first motor, the second motor and the three-phase output end of three-phase voltage type rectifier.
Preferably, described three-phase voltage type rectifier is the half bridge rectifier of six tunnel IGBT module, and described controller unit controls the conducting state of six tunnel IGBT module.
Preferably, described first motor is permagnetic synchronous motor, and described second motor is DC brushless motor.
Preferably, described control system comprises velocity checking circuits, and described controller unit receives vehicle speed signal by motor signal treatment circuit.
Preferably, described control system connects entire car controller by CAN communication circuit, thus obtains throttle signal.
Preferably, also comprise the temperature sensing circuit be connected with controller unit, for detecting the temperature signal of six tunnel IGBT module.
Preferably, one of the bus voltage testing circuit, power module, current detection circuit be connected with controller unit or their combination is also comprised.
In addition, present invention also offers a kind of motor control method of electronlmobil, comprising:
Obtain vehicle speed signal, and obtain throttle signal;
When throttle signal is effective, if vehicle speed signal is greater than preset vehicle speed value, then drive the first machine operation, otherwise, drive the second machine operation.
The present invention compared to the beneficial effect of present technology is:
The present invention adopts two motors on electronlmobil; like this; two motors can select different rating horsepowers; adopt the speed of a motor vehicle and throttle signal as judging signal simultaneously; judge to allow which machine operation according to the program set in controller unit, the work achieving double-motor switches, and realizes time-sharing work; both play the function of protection motor, save electric energy to greatest extent again.
Accompanying drawing explanation
Fig. 1 is the structural representation of the electric machine control system of electronlmobil according to the embodiment of the present invention;
Fig. 2 is the structural representation of the driver element of the electric machine control system of electronlmobil according to the embodiment of the present invention;
Fig. 3 is the control method schematic flow sheet of the electronlmobil according to the embodiment of the present invention.
Detailed description of the invention
For enabling above-mentioned purpose, the feature and advantage of invention more become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Set forth a lot of detail in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention, therefore the present invention is by the restriction of following public specific embodiment.
Shown in figure 1, in this embodiment, controller unit is Central Processing Unit (CPU) 100, it is such as dsp system, it is connected with communication module 310, motor signal processing module 320, current detection module 330, bus voltage detection module 350 and power-switching circuit module 360, and export and have multi-path signal 1U, 2U, 1V, 2V, 1W, 2W, X1, X2, the mode of operation that these signals are respectively used to control first driver element and the second driver element and the mode of operation of the driver module of three-phase voltage type rectifier be connected with the first motor and the second motor, to realize the work of the first motor or the second motor respectively.
In the present embodiment, Central Processing Unit (CPU) 100 receives vehicle speed signal by motor signal treatment circuit 320, and be connected to entire car controller by CAN communication circuit, throttle signal is obtained from entire car controller, certainly, according to concrete design and needs, vehicle speed signal and throttle signal can also be obtained by different modes.
Shown in figure 2, in this embodiment, three-phase voltage type rectifier 260 is the half bridge rectifier of six tunnel IGBT module, its input end P, N connects with battery unit, first driver element 210 is the first relay, second driver element 220 is the second relay, first motor 230 is permagnetic synchronous motor, second motor 240 is DC brushless motor, permagnetic synchronous motor has higher rating horsepower compared with DC brushless motor usually, in one embodiment, the rating horsepower of permagnetic synchronous motor is preferably 25KW, the rating horsepower of DC brushless motor 4 is 5KW, the three-phase output end U of three-phase voltage type rectifier 260, V, W is connected with the three-phase input end of permagnetic synchronous motor 230 respectively through the first relay R 1, be connected with the input end of DC brushless motor through the second relay R 2, the input end wherein flowing brushless motor is the port before AC-DC conversion.Be understandable that, the first motor and the second motor can select dissimilar motor as required, and the first driver element and the second driver element also can be other automatically controlled on-off element, as pliotron etc.
Controller unit 100 receives throttle signal and vehicle speed signal, when throttle signal is effective, namely, when throttle has output, the vehicle speed value of vehicle speed signal is greater than predetermined vehicle speed value, as being greater than 15 kilometers/hour, now, controller unit 100 controls six tunnel IGBT module conductings by control signal 1U, 2U, 1V, 2V, 1W, 2W, and controls the first relay R 1 conducting by control signal X1, and the second relay electrical equipment R2 not conducting, like this, permagnetic synchronous motor 230 is in running order; Otherwise, when the vehicle speed value of vehicle speed signal is less than predetermined vehicle speed value, as being less than 15 kilometers/hour, now, controller unit 100 control signal 1U, 2U, 1V, 2V, 1W, 2W control six tunnel IGBT module conductings, and control the second relay R 2 conducting by control signal X2, and the first relay R 1 not conducting, like this, DC brushless motor is in running order.Thus; by vehicle speed signal and throttle signal; controlled the mode of operation of the first and second relays by controller unit, select suitable machine operation, realize time-sharing work; permagnetic synchronous motor can be protected to greatest extent; avoid at low speeds, big current for the frequent impact of permagnetic synchronous motor, simultaneously; also use low power DC brushless motor under low-speed situations, can start more fast and farthest can save electric energy.
As can be seen from Figure 1, more function that the control module of the present embodiment is integrated, while control first motor and the second motor time-sharing work, can also have overvoltage, under-voltage, overcurrent, short circuit and overheat protector function.
Wherein, communication module 310 achieves the communication of Central Processing Unit (CPU) 100 by CAN communication circuit, can transmit outside signal and enter Central Processing Unit (CPU), and the data message of this Central Processing Unit (CPU) 100 is sent to entire car controller unit.
Motor signal processing module 320 for gather and processing motor signal, as magslip pumping signal EX1, EX2, magslip feedback signal S1, S2, S3, S4, and motor temperature sensor signal NTC1, NTC2.
Current detection circuit 330 is for the DC bus current signal IP of acquisition and processing battery and motor triple line current signal IU, IV, IW.
Temperature sensing circuit 340 is for importing the temperature signal of each IGBT module into central process unit, the temperature signal of each IGBT module can be obtained by temperature collection circuit.
Direct current bus voltage detecting circuit 350 is for importing DC bus-bar voltage signal UDC into central process unit, this DC bus-bar voltage signal UDC can be obtained by DC bus-bar voltage collection circuit.
Power-switching circuit 360 is for providing suitable power supply to other system.
Each signal that motor signal processing module, current detection circuit, temperature sensing circuit, direct current bus voltage detecting circuit export is spread out of by communication module by central process unit; as spread out of to upper computer; the situation learning circuit that can be real-time; make system have overvoltage, under-voltage, overcurrent, short circuit and overheat protector function, there is better safety and integration.
In addition, present invention also offers the motor control method of above-mentioned electronlmobil, comprising: obtain vehicle speed signal, and obtain throttle signal; When throttle signal is effective, if vehicle speed signal is greater than preset vehicle speed value, then drive the first machine operation, otherwise, drive the second machine operation.Shown in figure 3, for the control method of the embodiment of the electric machine control system of above-mentioned electronlmobil, Central Processing Unit (CPU) is after receiving vehicle speed signal and receiving throttle signal by electrode signal processing module, judge according to preset vehicle speed value, and send corresponding drive singal, when vehicle speed signal value exceedes predetermined vehicle speed value, Central Processing Unit (CPU) to the first driver element output drive signal, thus drives permagnetic synchronous motor work; Otherwise Central Processing Unit (CPU), to the second driver element output drive signal, drives DC brushless motor work, thus realizes the time-sharing work of the motor of different capacity.
The foregoing is only preferred embodiment of the present invention, the present invention is not limited to this.
Although the present invention is described in conjunction with above embodiment, but the present invention is not defined to above-described embodiment, and only by the restriction of claims, those of ordinary skill in the art can easily modify to it and change, but do not leave essential idea of the present invention and scope.
Claims (9)
1. an electric machine control system for electronlmobil, is characterized in that, comprising:
Controller unit, the first driver element, the second driver element, the first motor and the second motor;
Described controller unit receives vehicle speed signal and throttle signal, when throttle signal is effective, whether the size according to vehicle speed signal is greater than preset vehicle speed value, and controller unit controls the mode of operation of the first driver element and the second driver element to realize the first motor or the second machine operation.
2. control system according to claim 1, it is characterized in that, described first driver element is the first relay, described second driver element is the second relay, be connected with the first relay between described first motor and the three-phase output end of three-phase voltage type rectifier, between the input end of described second motor and the three-phase output end of three-phase voltage type rectifier, be connected with the second relay.
3. control system according to claim 2, is characterized in that, described three-phase voltage type rectifier is the half bridge rectifier of six tunnel IGBT module, and described controller unit controls the conducting state of six tunnel IGBT module.
4. control system according to claim 2, is characterized in that, described first motor is permagnetic synchronous motor, and described second motor is DC brushless motor.
5. control system according to claim 1, is characterized in that, described control system comprises velocity checking circuits, and described controller unit receives vehicle speed signal by motor signal treatment circuit.
6. control system according to claim 1, is characterized in that, described control system connects entire car controller by CAN communication circuit, thus obtains throttle signal.
7. control system according to claim 3, is characterized in that, also comprises the temperature sensing circuit be connected with controller unit, for detecting the temperature signal of six tunnel IGBT module.
8. control system according to claim 1, is characterized in that, also comprises one of the bus voltage testing circuit, power module, current detection circuit or their combination that are connected with controller unit.
9. a motor control method for electronlmobil, is characterized in that, comprising:
Obtain vehicle speed signal, and obtain throttle signal;
When throttle signal is effective, if vehicle speed signal is greater than preset vehicle speed value, then drive the first machine operation, otherwise, drive the second machine operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310119450.8A CN103204081B (en) | 2013-04-08 | 2013-04-08 | Motor control system and method for electric cars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310119450.8A CN103204081B (en) | 2013-04-08 | 2013-04-08 | Motor control system and method for electric cars |
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| Publication Number | Publication Date |
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| CN103204081A CN103204081A (en) | 2013-07-17 |
| CN103204081B true CN103204081B (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310119450.8A Active CN103204081B (en) | 2013-04-08 | 2013-04-08 | Motor control system and method for electric cars |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104637929A (en) * | 2015-02-03 | 2015-05-20 | 柳州市同进汽车零部件制造有限公司 | IGBT (Insulated Gate Bipolar Transistor) module |
| CN111245302A (en) * | 2018-11-28 | 2020-06-05 | 湖南中车时代电动汽车股份有限公司 | Functional safety motor control system and motor system for new energy automobile |
| CN111856126A (en) | 2020-07-24 | 2020-10-30 | 一巨自动化装备（上海）有限公司 | High-low voltage signal sampling and transmission system based on high-voltage MCU |
| CN113200095B (en) * | 2021-07-05 | 2022-01-11 | 北京理工大学 | Solar automobile body and solar automobile |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3249127A1 (en) * | 1982-02-24 | 1983-09-15 | Rheinisch-Westfälisches Elektrizitätswerk AG, 4300 Essen | Road vehicle powered by electric motor |
| EP0472951A1 (en) * | 1990-08-28 | 1992-03-04 | Josef Jäger | Driving device for a self-propelled vehicle |
| CN2806217Y (en) * | 2005-06-22 | 2006-08-16 | 高岩 | Small-sized car driven by dual-power |
| CN102055389A (en) * | 2010-12-31 | 2011-05-11 | 东莞洲亮通讯科技有限公司 | Stepless speed regulating method of double-speed brushless direct current motor for electric automobile |
| CN102923014A (en) * | 2012-11-07 | 2013-02-13 | 安徽江淮汽车股份有限公司 | Charging and motor controlling module of electric car |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5932384A (en) * | 1982-08-17 | 1984-02-21 | Secoh Giken Inc | Automatic variable speed gear |
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2013
- 2013-04-08 CN CN201310119450.8A patent/CN103204081B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3249127A1 (en) * | 1982-02-24 | 1983-09-15 | Rheinisch-Westfälisches Elektrizitätswerk AG, 4300 Essen | Road vehicle powered by electric motor |
| EP0472951A1 (en) * | 1990-08-28 | 1992-03-04 | Josef Jäger | Driving device for a self-propelled vehicle |
| CN2806217Y (en) * | 2005-06-22 | 2006-08-16 | 高岩 | Small-sized car driven by dual-power |
| CN102055389A (en) * | 2010-12-31 | 2011-05-11 | 东莞洲亮通讯科技有限公司 | Stepless speed regulating method of double-speed brushless direct current motor for electric automobile |
| CN102923014A (en) * | 2012-11-07 | 2013-02-13 | 安徽江淮汽车股份有限公司 | Charging and motor controlling module of electric car |
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| CN103204081A (en) | 2013-07-17 |
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Address after: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230022 No. 176 Dongliu Road, Hefei City, Anhui Province Patentee before: Anhui Jianghuai Automobile Group Limited by Share Ltd |