CN201876718U - Controller of electric automobile - Google Patents
Controller of electric automobile Download PDFInfo
- Publication number
- CN201876718U CN201876718U CN2010205996868U CN201020599686U CN201876718U CN 201876718 U CN201876718 U CN 201876718U CN 2010205996868 U CN2010205996868 U CN 2010205996868U CN 201020599686 U CN201020599686 U CN 201020599686U CN 201876718 U CN201876718 U CN 201876718U
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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]
Abstract
The utility model discloses an electric automobile controller, its including be used for receiving user command signal input module, with host system that signal input module links to each other, with pulse width modulation module, field effect transistor that host system links to each other, with the voltage acquisition module that the drain electrode of field effect transistor links to each other and connect in voltage acquisition module with motor current calculation module between the host system, the drain electrode of field effect transistor links to each other with the motor, source electrode ground connection, grid and the pulse width modulation module links to each other, the field effect transistor work is in linear work area. The electric automobile controller can ensure that the electric automobile works in a stable and smooth running state at any time, and is safe and reliable.
Description
Technical field
The utility model relates to power system of electric automobile, relates in particular to a kind of electric vehicle controller.
Background technology
For the purpose of environmental protection, the application of electric automobile is increasingly extensive.Because motor has good pulling figure, so the kinematic train of electric automobile do not need clutch coupling and variator, and speed of a motor vehicle control changes rotating speed of motor by controller by governing system and can realize.The traditional electric automobile controller can only open loop be controlled vehicle towed motor, can not carry out the real-time and effective adjustment to motor according to road surface variation, load variations and windage variation etc. and guarantee that vehicle is in the steady and smooth driving condition all the time.Therefore, demand urgently providing a kind of improved electric vehicle controller to overcome above-mentioned defective.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of electric vehicle controller, and it can guarantee that electric automobile all is operated in the steady and smooth transport condition at any time, and safe and reliable.
In order to solve the problems of the technologies described above, the utility model provides a kind of electric vehicle controller, it comprises the signal input module that is used to receive user command, the main control module that links to each other with described signal input module, the pulse width modulation module that links to each other with described main control module, field effect transistor, the voltage acquisition module that links to each other with the drain electrode of described field effect transistor, and be connected in current of electric computing module between described voltage acquisition module and the described main control module, the drain electrode of described field effect transistor links to each other with motor, source ground, grid links to each other with described pulse width modulation module, and described field effect transistor is operated in the linear work zone.
Compared with prior art, electric vehicle controller of the present utility model is by the output of master control module controls pulse width modulation module, make field effect transistor work in the range of linearity, and import described main control module by the current of electric that the current of electric computing module calculates, described main control module is adjusted the output of described pulse width modulation module according to user command and current of electric, thereby the control rotating speed of motor keeps its stability, and then has guaranteed the comfortableness and the security of electric automobile.In addition, by the drain electrode of collection field effect transistor and the voltage between the source electrode, and according to this voltage calculating current of electric, hardware circuit is simple, and image data is true, and is reliable and stable, signal is ageing strong, does not have hysteresis fully, is convenient to effective, stable, the control efficiently of motor.
Preferably, described electric vehicle controller also comprises and is used for compensation control module that input signal is handled, the input end of described compensation control module links to each other with described voltage acquisition module with described signal input module respectively, and output terminal links to each other with described current of electric computing module with described main control module respectively.
Preferably, described main control module is the robust stability control module.
Preferably, described electric vehicle controller also comprises and the mutual system protection module of described robust stability control module.
Further, described system protection module comprises that the too high protected location of electric current, the too high protected location of electric moter voltage, the too high protected location of temperature, cell voltage cross at least one in low protection unit and the braking protected location.
Preferably, described electric vehicle controller also comprises the CAN bus communication module that is used for carrying out with the automobile function control module real-time communication, and described CAN bus communication module links to each other with described main control module.
By following description also in conjunction with the accompanying drawings, it is more clear that the utility model will become, and these accompanying drawings are used to explain embodiment of the present utility model.
Description of drawings
Fig. 1 is the structured flowchart of an embodiment of the utility model electric vehicle controller.
Fig. 2 is a field effect transistor current-voltage linear diagram.
Embodiment
With reference now to accompanying drawing, describe embodiment of the present utility model, the similar elements label is represented similar elements in the accompanying drawing.As mentioned above, the utility model provides a kind of electric vehicle controller, and it can guarantee that electric automobile all is operated in the steady and smooth transport condition at any time, and safe and reliable.
Elaborate the technical scheme of the utility model embodiment below in conjunction with accompanying drawing.As shown in Figure 1, the electric vehicle controller of present embodiment comprises signal input module 11, pulse width modulation module 12, main control module 13, field effect transistor 14, voltage acquisition module 15 and current of electric computing module 16.Described signal input module 11 is used to receive user command.Described main control module 13 links to each other with described signal input module 11, and described pulse width modulation module 12 links to each other with described main control module 13, and described main control module 13 is according to the output of the described pulse width modulation module 12 of signal controlling that receives.The drain D of described field effect transistor 14 links to each other with motor 10, source S ground connection, grid G link to each other with described pulse width modulation module 12, be used to receive the square wave of described pulse width modulation module 12 outputs, the square wave of described pulse width modulation module 12 outputs makes field effect transistor 14 become an electronic analog swtich, by adjusting the duty cycle of switching time of field effect transistor 14, allow described field effect transistor 14 be operated in the linear work zone.Described voltage acquisition module 15 links to each other with the drain D of described field effect transistor 14, is used to gather the drain D of described field effect transistor 14 and the voltage V between the source S
DSDescribed current of electric computing module 16 links to each other with described voltage acquisition module 15, is used for the voltage V that collects according to described voltage acquisition module 15
DSCalculate the conducting electric current I of field effect transistor 14 with the output characteristics (see figure 2) of described field effect transistor 14
D, the average current of calculating field effect transistor 14 in the unit interval then according to dutycycle, i.e. current of electric, and the current of electric that calculates fed back to described main control module 13.The signal of aforementioned signal input module 11 inputs can comprise vehicle speed signal, signal for faster, reduce-speed sign, brake signal.
As preferred embodiment of the present utility model, the electric vehicle controller of present embodiment also comprises and is used for compensation control module 17 that input signal is handled.The input end of described compensation control module 17 links to each other with described voltage acquisition module 15 with described signal input module 11 respectively, and output terminal links to each other with described current of electric computing module 16 with described main control module 13 respectively.Described compensation control module 17 is used for the signal of the signal of described signal input module 11 outputs and 16 outputs of described voltage acquisition module is handled, as go to disturb the compensation deals etc. of processing, reasonable error optimization process and device aging parameter shift, and transmit the signal after handling.The main control module 13 of present embodiment is the robust stability control module, described robust stability control module is used for the signal according to described compensation control module 17 forwardings, comprehensively judge the driving vehicle condition that vehicle is current according to the robust stability control theory, as anxious accelerated mode, accelerated mode etc. again after becoming accelerated mode and losing pedal obtains to be fit to current stable electric moter voltage correction of travelling to adjust the output of described pulse width modulation module 12.That is to say, described main control module 13 with this electric moter voltage correction and current electric moter voltage compose operation as target, control output voltage, vehicle just can be in stable status at any time in the process of travelling like this.
The electric vehicle controller of present embodiment also comprises system protection module (figure does not show); described system protection module and described robust stability control module are mutual; be used for the acquisition state signal and be sent to described main control module 13; it is described robust stability control module; and take corresponding protection operation, described robust stability control module to judge whether described status signal exceeds preset range, whether curve is consistent decides with expection control when front motor operation trend curve according to the judged result of described robust stability control module.Further, described system protection module comprises that the too high protected location of electric current, the too high protected location of electric moter voltage, the too high protected location of temperature, cell voltage cross at least one in low protection unit and the braking protected location.
Preferably, described electric vehicle controller also comprises CAN bus communication module (figure does not show), be used for and the automobile function control module, carry out real-time communication as panel board control module, battery management system control module, electric air-conditioning control module etc., adopt the CAN bus can guarantee real-time data transmission, each bar data message can replace errorless sending, and the sending node error is accomplished minimum.
Claims (6)
1. electric vehicle controller comprises: the pulse width modulation module that be used to receive the signal input module of user command, the main control module that links to each other with described signal input module, links to each other with described main control module,
It is characterized in that, also comprise: field effect transistor, the voltage acquisition module that links to each other with the drain electrode of described field effect transistor and be connected in described voltage acquisition module and described main control module between the current of electric computing module, the drain electrode of described field effect transistor links to each other with motor, source ground, grid link to each other with described pulse width modulation module, and described field effect transistor is operated in the linear work zone.
2. electric vehicle controller according to claim 1, it is characterized in that, also comprise and be used for compensation control module that input signal is handled, the input end of described compensation control module links to each other with described voltage acquisition module with described signal input module respectively, and output terminal links to each other with described current of electric computing module with described main control module respectively.
3. electric vehicle controller according to claim 1 and 2 is characterized in that, described main control module is the robust stability control module.
4. electric vehicle controller according to claim 3 is characterized in that, also comprises and the mutual system protection module of described robust stability control module.
5. electric vehicle controller according to claim 4; it is characterized in that described system protection module comprises that the too high protected location of electric current, the too high protected location of electric moter voltage, the too high protected location of temperature, cell voltage cross at least one in low protection unit and the braking protected location.
6. electric vehicle controller according to claim 1 and 2 is characterized in that, also comprises the CAN bus communication module that is used for carrying out with the automobile function control module real-time communication, and described CAN bus communication module links to each other with described main control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205996868U CN201876718U (en) | 2010-11-10 | 2010-11-10 | Controller of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205996868U CN201876718U (en) | 2010-11-10 | 2010-11-10 | Controller of electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201876718U true CN201876718U (en) | 2011-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205996868U Expired - Fee Related CN201876718U (en) | 2010-11-10 | 2010-11-10 | Controller of electric automobile |
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| CN (1) | CN201876718U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877782A (en) * | 2017-03-28 | 2017-06-20 | 联想(北京)有限公司 | Circuit for controlling motor, device and motor control method |
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2010
- 2010-11-10 CN CN2010205996868U patent/CN201876718U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877782A (en) * | 2017-03-28 | 2017-06-20 | 联想(北京)有限公司 | Circuit for controlling motor, device and motor control method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20131110 |