CN101885312A - Electric automobile whole-control system - Google Patents
Electric automobile whole-control system Download PDFInfo
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- CN101885312A CN101885312A CN2010102189081A CN201010218908A CN101885312A CN 101885312 A CN101885312 A CN 101885312A CN 2010102189081 A CN2010102189081 A CN 2010102189081A CN 201010218908 A CN201010218908 A CN 201010218908A CN 101885312 A CN101885312 A CN 101885312A
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- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 238000004891 communication Methods 0.000 claims description 25
- 101100148830 Arabidopsis thaliana SCI1 gene Proteins 0.000 claims description 6
- 101100054266 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) SNF4 gene Proteins 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011981 development test Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012827 research and development 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to an electric automobile whole-control system, which is characterized in that: 1) the system comprises an embedded controller, wherein the controller is at least provided with a pulse width modulation PWM interface, an I/O interface, a CAN interface and two UART interfaces; 2) the PWM interface of the embedded controller is connected with a power-assisted steering mechanism of the electric automobile; 3) the I/O interface of the embedded controller is connected with a lamp detection and control mechanism of the electric automobile; and 4) the CAN interface which is connected with the embedded controller is connected with a battery management mechanism of the electric automobile and a motor control mechanism of the electric automobile through a CAN bus respectively. The controller communicates with RS232 through the CAN bus, and receives, filters and processes the whole vehicle state. The electric automobile whole-control system is provided with an embedded control structure, and has the advantages of simple structure, more system functions, convenient conversion, and convenient and flexible operation.
Description
Technical field
The present invention relates to a kind of vehicle control unit of electric vehicle, be applicable to the car load control of the electronlmobil of band energy control.Belong to the electric vehicle engineering field.
Background technology
Energy-saving and emission-reduction are worldwide trends, various countries under the policy of energy-saving and emission-reduction, all research relevant policies guide, wherein with the pollution that the vehicle were caused account for the ratio maximum.Therefore, each big auto producer is researched and developed unit in order to cater to public demand and the environmental regulation restriction of satisfying government with relevant automobile, and various " green " new forms of energy concept car is come out one after another, to meet world trends.At present input manufacturer and the research and development unit with elec. vehicle is maximum, and it is comparatively backward that the automobile of China is researched and developed relative west, but in Shanghai International motor show in 2009, the homemade pure electric vehicle with independent brand just has 10 sections more than.As seen Wei Lai automobile will be the world of electronlmobil, also be the trend of the times of environmental demands.
Electronlmobil is divided into three kinds of forms, is respectively pure electric vehicle (PEV), fuel-cell vehicle (FCEV) and hybrid vehicle (HEV).The entire car controller of solar electrically propelled vehicle entire car controller and hybrid power has tangible difference: the hybrid power entire car controller is to drive two or more automobile driving system to control two or more energy; The solar electrically propelled vehicle whole-control system then is to distribute the vehicle management system that drives with a kind of motor with control solar panel and two kinds of energy of storage battery, thereby reaches optimization and maximizedly utilize this cleaning of solar power, inexhaustible natural energy source.
CAN (ControllerAreaNetwork local area control net) bus is formally proposed in February, 1986 by Bosch, Benz development test, and Bosch CAN2.0 becomes international standard (ISO11898) in November, 1933.Owing to adopted many up-to-date technologys and unique design, the CAN bus is compared with general communication, and its data communication has outstanding reliability, real-time and alerting ability, is one of important development direction of vehicle local network control.Therefore, based on CAN (Controller Area Network local area control net) bus design to go out the electric automobile whole control setup be research task of the present invention.
Summary of the invention
Technical matters to be solved by this invention provides a kind of vehicle control unit of electric vehicle, this device is in conjunction with car load operation conditions and driver intention, the battery management system of electronlmobil, electric machine control system, servo steering system etc. are synthesized and coordinated and controlled, high-speed CAN bus and RS232 serial interface have been used simultaneously, the stability of entire controller is improved greatly, and effectively reduce the wire harness cost of car load.
Technical matters of the present invention, can take following technical scheme to solve:
A kind of electric automobile whole-control system is characterized in that:
1) comprises an embedded controller, be provided with pulse-width modulation PWM interface, I/O interface, CAN interface in the described embedded controller at least;
2) the PWM interface of described embedded controller connects the assisted power steering system of electronlmobil;
3) the I/O interface of described embedded controller connects the car light detection and the car light control mechanism of electronlmobil;
4) the CAN interface of the described embedded controller of connection connects the battery management mechanism of electronlmobil, the motor control mechanism of electronlmobil respectively by the CAN bus.
Technical matters of the present invention, can take following technical scheme to solve:
A kind of embodiment of the present invention is: described embedded controller also is provided with the RS232 communication interface, the SCI2 that comprises serial ports SCI1 and serial ports of this RS232 communication interface, described serial ports SCI1 connects the touch-screen of electronlmobil, and described serial ports SCI2 connects the LED display of electronlmobil.
A kind of embodiment of the present invention is: the CAN communication interface of described embedded controller constitutes the high-speed CAN bus network by an external transceiver.
A kind of embodiment of the present invention is: described embedded controller is connected with battery management mechanism by the CAN bus, collects the status information of cell pressure, temperature, battery remaining power SOC, battery status and solar panel by the CAN bus.
A kind of embodiment of the present invention is: the touch-screen split screen of described embedded controller controls electronlmobil switches the various information that show battery and motor:
1) first screen shows the residual capacity SOC of the speed of a motor vehicle, mileage, battery;
2) second screen shows total voltage, electric current, temperature, cell maximum voltage, the cell minimum voltage of battery, and a charge button is arranged, and is used to switch the charging and discharging state of battery;
3) the 3rd screen shows the mode of operation of battery, and in comprising in the charging, using, communication makes mistakes, charge balancing, voltage below level, SOC are low excessively, the 3rd screen also shows the mode of operation of motor;
4) the 4th screen shows the information of voltage of each cell;
5) or the displaying contents of touch-screen screen and DISPLAY ORDER do as required to set and adjust.
A kind of embodiment of the present invention is: described embedded controller has the trouble diagnosing of carrying out and warning electrical structure, comprises that communication error exception, cell pressure cross low the warning, and battery remaining power is crossed low the warning.
A kind of embodiment of the present invention is: described embedded controller is provided with touch-screen charge/discharge button, by the charge button charge/discharge of touch-screen, and the switching of carrying out battery charge and discharge mode.
Described embedded controller is the embedded controller based on the freescale chip.Described controller communicates by CAN bus and RS232, and receives, filters, handles whole vehicle state.Specifically comprise:
Described controller obtains actual speed, direction, moment of torsion and other motor information of motor from electric machine controller by the CAN bus;
Described controller can be controlled the touch-screen split screen and switch the various information that show battery and motor;
Described entire car controller can carry out trouble diagnosing and warning, comprises that communication error exception, cell pressure cross low the warning, and battery remaining power is crossed low the warning;
Described entire car controller can carry out the switching of battery charge and discharge mode by the charge button of touch-screen.
The present invention has following outstanding beneficial effect:
1, the present invention has the embedded Control structure owing to adopt embedded controller, therefore, has that system architecture is simple, systemic-function increases and conversion is convenient and easy to operate, a beneficial effect flexibly.
2, the present invention communicates by other control mechanisms in CAN bus and serial communication interface and the battery-driven car, has reception, filtration, handles whole vehicle state; It serves as the charge condition of adjusting between solar cell and the storage battery when driving, gather the operation intention of chaufeur, analyze the car load situation, coordinate the better responsibility of work of each associated control system, this controller has CAN communication and two kinds of signalling methodss of RS232 serial communication, and the beneficial effect of giving prominence to is coordinated and controlled etc. to car load.
Description of drawings
Fig. 1 is the functional-block diagram of apparatus of the present invention.
Fig. 2 is the control flow chart of apparatus of the present invention.
The specific embodiment
With reference to Fig. 1, a specific embodiment of the present invention comprises an embedded controller, be provided with pulse-width modulation PWM interface, I/O interface, CAN interface and RS232 communication interface in the described embedded controller, the SCI2 that comprises serial ports SCI1 and serial ports of this RS232 communication interface, described serial ports SCI1 connects the touch-screen of electronlmobil, and described serial ports SCI2 connects the LED display of electronlmobil; The PWM interface of described embedded controller connects the assisted power steering system of electronlmobil; The car light that the I/O interface of described embedded controller connects electronlmobil detects and the car light control mechanism; The CAN interface that connects described embedded controller connects the battery management mechanism of electronlmobil, the motor control mechanism of electronlmobil respectively by the CAN bus.
In the present embodiment:
The CAN communication interface of described embedded controller constitutes the high-speed CAN bus network by an external transceiver.Described embedded controller is connected with battery management mechanism by the CAN bus, collects the status information of cell pressure, temperature, battery remaining power SOC, battery status and solar panel by the CAN bus.Described embedded controller has the trouble diagnosing of carrying out and warning electrical structure, comprises that communication error exception, cell pressure cross low the warning, and battery remaining power is crossed low the warning.Described embedded controller is provided with touch-screen charge/discharge button, by the charge button charge/discharge of touch-screen, and the switching of carrying out battery charge and discharge mode.
The touch-screen split screen of described embedded controller controls electronlmobil switches the various information that show battery and motor:
1) first screen shows the residual capacity SOC of the speed of a motor vehicle, mileage, battery;
2) second screen shows total voltage, electric current, temperature, cell maximum voltage, the cell minimum voltage of battery, and a charge button is arranged, and is used to switch the charging and discharging state of battery;
3) the 3rd screen shows the mode of operation of battery, and in comprising in the charging, using, communication makes mistakes, charge balancing, voltage below level, SOC are low excessively, the 3rd screen also shows the mode of operation of motor;
4) the 4th screen shows the information of voltage of each cell;
5) or the displaying contents of touch-screen screen and DISPLAY ORDER do as required to set and adjust.
The present invention and exterior communication are divided into two classes: the first kind is for carrying out communication by the CAN bus with battery management mechanism, motor control mechanism, communication speed is very fast, the controller of whole-control system is according to the state and the driver intention information of each control mechanism in the battery-driven car, analyzes and the important control strategy of car load is carried out coordinative command; Second class manages and controls touch-screen and LED large-size screen monitors for by the RS232 serial communication.
The present invention can obtain detailed storage battery information, solar cell information and car load information about power from battery management system by the CAN bus, obtain actual speed, direction, moment of torsion and other motor information of motor from electric machine controller by the CAN bus, by the I/O mouth car light is carried out Detection ﹠ Controling, generate corresponding PWM square wave by actual speed and send to servo steering system, touch-screen and LED large-size screen monitors are shown control by the RS232 serial interface
Figure 2 shows that the control flow of this specific embodiment.
The present invention is that entire car controller moves the complex that dress attitude function realizes, control is carried out normal operation with coordination battery management system (comprising solar cell and storage battery), electric machine controller, servo steering system, car light Detection ﹠ Controling, touch-screen and LED large-size screen monitors.The present invention is applicable to a kind of pure electric automobile (electrokinetic cell comprises solar cell and storage battery), and described storage battery is 100Ah, and total voltage is 192V.It is as follows that this entire car controller is used for the battery-driven car radical function:
Can adjust charge condition between solar cell and the storage battery according to current weather conditions: solar cell carries out oneself's charging in the process of moving, when solar array voltage during greater than battery tension, solar cell charges a battery, otherwise solar power is proceeded oneself's charging, thereby make full use of solar power, save power consumption.
Can obtain detailed battery information and car load information about power from battery management system by the CAN bus, when the car load electric weight is not enough, entire car controller sends alerting signal and in screen displaying, sends to electric machine controller by the CAN bus simultaneously and forbid the running order; When the car load electric weight was enough, whether entire car controller at first detected the ground charge switch and opens, if the ground charge switch is opened, entire car controller sends alerting signal and in screen displaying, sends to electric machine controller by the CAN bus simultaneously and forbid the running order; If disconnecting, the ground charge switch sends permission running order to electric machine controller by the CAN bus.
Can receive the return message of electric machine controller by the CAN bus, if receive the return message of electric machine controller, entire car controller just obtains actual speed, direction, moment of torsion and other motor information of motor from electric machine controller; If entire car controller is not received the return message of electric machine controller, electric machine controller then returns the dynamic regime of car load by CAN bus request battery management system.
Can receive the return message of battery management system by the CAN bus, if receive the return message of battery management system, entire car controller just obtains the details of battery and car load electric weight etc. from battery management system; If receive the return message of battery management system, then generate corresponding PWM square wave and give servo steering system by actual speed, calculate the cooresponding speed of a motor vehicle by actual speed, be kept at the temp variable by actual vehicle speed accumulation distance, if be saved among the EEPROM after the temp variable greater than 100, then adds up mileage.
Can carry out Detection ﹠ Controling to car light by the I/O mouth, lighting switch is detected and the car light that correspondence is opened is controlled.This entire car controller generates corresponding PWM square wave by actual speed and controls servo steering system.This entire car controller shows the various information of battery and the various information of car load by RS232 serial interface control touch-screen and LED large-size screen monitors.
Claims (7)
1. electric automobile whole-control system is characterized in that:
1) comprises an embedded controller, be provided with pulse-width modulation PWM interface, I/O interface, CAN interface in the described embedded controller at least;
2) the PWM interface of described embedded controller connects the assisted power steering system of electronlmobil;
3) the I/O interface of described embedded controller connects the car light detection and the car light control mechanism of electronlmobil;
4) the CAN interface of the described embedded controller of connection connects the battery management mechanism of electronlmobil, the motor control mechanism of electronlmobil respectively by the CAN bus.
2. a kind of electric automobile whole-control system according to claim 1, it is characterized in that: described embedded controller also is provided with the RS232 communication interface, the SCI2 that comprises serial ports SCI1 and serial ports of this RS232 communication interface, described serial ports SCI1 connects the touch-screen of electronlmobil, and described serial ports SCI2 connects the LED display of electronlmobil.
3. a kind of electric automobile whole-control system according to claim 1 and 2 is characterized in that: the CAN communication interface of described embedded controller constitutes the high-speed CAN bus network by an external transceiver.
4. a kind of electric automobile whole-control system according to claim 3, it is characterized in that: described embedded controller is connected with battery management mechanism by the CAN bus, collects the status information of cell pressure, temperature, battery remaining power SOC, battery status and solar panel by the CAN bus.
5. a kind of electric automobile whole-control system according to claim 2 is characterized in that: the touch-screen split screen of described embedded controller controls electronlmobil switches the various information that show battery and motor:
1) first screen shows the residual capacity SOC of the speed of a motor vehicle, mileage, battery;
2) second screen shows total voltage, electric current, temperature, cell maximum voltage, the cell minimum voltage of battery, and a charge button is arranged, and is used to switch the charging and discharging state of battery;
3) the 3rd screen shows the mode of operation of battery, and in comprising in the charging, using, communication makes mistakes, charge balancing, voltage below level, SOC are low excessively, the 3rd screen also shows the mode of operation of motor;
4) the 4th screen shows the information of voltage of each cell;
5) or the displaying contents of touch-screen screen and DISPLAY ORDER do as required to set and adjust.
6. a kind of electric automobile whole-control system according to claim 2, it is characterized in that: described embedded controller has the trouble diagnosing of carrying out and warning electrical structure, comprise that communication error exception, cell pressure cross low the warning, battery remaining power is crossed low the warning.
7. a kind of electric automobile whole-control system according to claim 2, it is characterized in that: described embedded controller is provided with touch-screen charge/discharge button, by the charge button charge/discharge of touch-screen, and the switching of carrying out battery charge and discharge mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010102189081A CN101885312A (en) | 2010-07-06 | 2010-07-06 | Electric automobile whole-control system |
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| CN2010102189081A CN101885312A (en) | 2010-07-06 | 2010-07-06 | Electric automobile whole-control system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019925A (en) * | 2010-12-14 | 2011-04-20 | 湖南南车时代电动汽车股份有限公司 | General control method of whole electric automobile controller based on singlechip |
| CN103921693A (en) * | 2014-04-02 | 2014-07-16 | 中联重科股份有限公司 | Method, device and system for electric vehicle motor control |
| CN105259808A (en) * | 2015-10-22 | 2016-01-20 | 闫磊 | Intelligent network automotive control system |
| CN107367982A (en) * | 2017-07-17 | 2017-11-21 | 中山大学 | Based on Embedded low-speed electronic car intelligent driving control system |
| CN107466274A (en) * | 2015-03-16 | 2017-12-12 | 标致雪铁龙汽车股份有限公司 | diagnostic device |
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| CN101565003A (en) * | 2009-06-08 | 2009-10-28 | 奇瑞汽车股份有限公司 | Motor controller of electric automobile and control method thereof |
| CN101612923A (en) * | 2009-07-31 | 2009-12-30 | 上海联孚新能源科技有限公司 | Vehicle control unit of electric vehicle |
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2010
- 2010-07-06 CN CN2010102189081A patent/CN101885312A/en active Pending
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| JP2003154903A (en) * | 2001-11-19 | 2003-05-27 | Auto Network Gijutsu Kenkyusho:Kk | On-vehicle electronic circuit |
| CN2858417Y (en) * | 2005-12-13 | 2007-01-17 | 湖北汽车工业学院 | Whole vehicle controller for hybrid power system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019925A (en) * | 2010-12-14 | 2011-04-20 | 湖南南车时代电动汽车股份有限公司 | General control method of whole electric automobile controller based on singlechip |
| CN102019925B (en) * | 2010-12-14 | 2013-07-17 | 湖南南车时代电动汽车股份有限公司 | General control method of whole electric automobile controller based on singlechip |
| CN103921693A (en) * | 2014-04-02 | 2014-07-16 | 中联重科股份有限公司 | Method, device and system for electric vehicle motor control |
| CN103921693B (en) * | 2014-04-02 | 2016-03-02 | 中联重科股份有限公司 | A kind of electric car motor control method and device, system |
| CN107466274A (en) * | 2015-03-16 | 2017-12-12 | 标致雪铁龙汽车股份有限公司 | diagnostic device |
| CN105259808A (en) * | 2015-10-22 | 2016-01-20 | 闫磊 | Intelligent network automotive control system |
| CN107367982A (en) * | 2017-07-17 | 2017-11-21 | 中山大学 | Based on Embedded low-speed electronic car intelligent driving control system |
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Application publication date: 20101117 |