CN203844620U - Electric car brake energy feedback control device - Google Patents
Electric car brake energy feedback control device Download PDFInfo
- Publication number
- CN203844620U CN203844620U CN201420254918.4U CN201420254918U CN203844620U CN 203844620 U CN203844620 U CN 203844620U CN 201420254918 U CN201420254918 U CN 201420254918U CN 203844620 U CN203844620 U CN 203844620U
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- CN
- China
- Prior art keywords
- feedback
- battery pack
- power battery
- control
- electric machine
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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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
Disclosed is an electric car brake energy feedback control device. The hardware of the electric car brake energy feedback control device comprises a permanent magnet brushless direct current motor, a motor controller and a power battery pack, wherein the motor controller is connected with the permanent magnet brushless direct current motor and the power battery pack; the motor controller comprises a three-phase full bridge type inverter circuit and a control module, wherein the control module comprises a driving module and a brake feedback module. The brake feedback module carries out regular PWM control on switching on and off of a three-phase full bridge type inverter circuit power tube so that the permanent magnet brushless direct current motor can be in a power generation state under the action of external force, the voltage generated by the permanent magnet brushless direct current motor is higher than that of the power battery pack, and current is fed back to the power battery pack. A constant feedback current control strategy is adopted, the magnitude of the feedback current and the magnitude of the feedback brake torque are adjusted by adjusting the duty ratio of PWM, and control over feedback brake is achieved. The electric car brake energy feedback control device has the advantages of being simple and reliable in control method, fast in brake energy feedback, and capable of effectively prolonging the service life of storage batteries.
Description
technical field:
The utility model belongs to electric vehicle engineering field, relates in particular to a kind of Regenerative Braking in Electronic Vehicle control setup.
background technology:
Development along with auto-industry; the atrophy of oil resources is restricting the development of auto-industry; the universal of electronlmobil not only can be alleviated oil crises, and reduced atmospheric contamination, but the short while of electronlmobil mileages of continuation is also restricting the development of electronlmobil.Utilize the approach such as electronlmobil braking, down ramp operation, high-speed cruising to increase conversion and the auxiliary charging of energy, for increasing mileages of continuation, provide a kind of good approach, we have designed a kind of Regenerative Braking in Electronic Vehicle control setup for this reason.
summary of the invention:
The purpose of this utility model is to provide a kind of Regenerative Braking in Electronic Vehicle control setup for electronlmobil.
A Regenerative Braking in Electronic Vehicle control setup, its hardware comprises permanent-magnet brushless DC electric machine, electric machine controller and power battery pack.It is characterized in that: electric machine controller connects permanent-magnet brushless DC electric machine, power battery pack, described electric machine controller comprises Three-phase full-bridge inverter circuit and control module, control module comprises that driver module and feedback braking module form, described feedback braking module is carried out regular PWM control to the break-make of Three-phase full-bridge inverter circuit power tube, make permanent-magnet brushless DC electric machine under external force in generating state, the voltage of its generation, can be by current feedback to power battery pack higher than power battery pack; Adopt the control policy of constant feedback electric current, by regulating the dutycycle of PWM, regulate the size of feedback electric current and regenerative braking torque, realize the control to regenerative braking.
Described power battery pack can adopt lead-acid batteries, also can adopt lithium cell group.
Its software controlling strategies is: vehicle is stepped on the throttle pedal when accelerating or at the uniform velocity travelling, and accelerator pedal sensor feeds back to electric machine controller, and power battery pack is in discharge regime; When vehicle is stepped on brake pedal Reduced Speed Now, brake pedal sensor feeds back to electric machine controller, and the work of vehicle feedback system, charges to power battery pack with certain electric current; Vehicle is when sliding Reduced Speed Now, and the work of vehicle feedback system, considers driver drives vehicle sensation, and while stepping on brake pedal Reduced Speed Now to compare vehicle, the less electric current of charging current of power battery pack charges to power battery pack.
The utlity model has that mode is simple and reliable, braking energy feedback is fast, effectively the advantage of prolonging service life of battery.
accompanying drawing explanation:
Fig. 1 is control setup schematic diagram of the present utility model;
Fig. 2 is energy feedback schematic diagram of the present utility model.
In figure: 1. power battery pack, 2. electric machine controller, 3. Three-phase full-bridge inverter circuit, 4. control module, 5. driver module, 6. feedback braking module, 7. permanent-magnet brushless DC electric machine.
the specific embodiment:
As shown in Figure 1 and Figure 2, a kind of Regenerative Braking in Electronic Vehicle control setup, its hardware comprises permanent-magnet brushless DC electric machine 7, electric machine controller 2 and power battery pack 1.It is characterized in that: electric machine controller 2 connects permanent-magnet brushless DC electric machine 7, power battery pack 1, described electric machine controller 2 comprises Three-phase full-bridge inverter circuit 3 and control module 4, control module 4 comprises that driver module 5 and feedback braking module 6 form, the break-make of 6 pairs of Three-phase full-bridge inverter circuit 3 power tubes of described feedback braking module is carried out regular PWM control, make permanent-magnet brushless DC electric machine 7 under external force in generating state, the voltage of its generation, can be by current feedback to power battery pack higher than power battery pack; Adopt the control policy of constant feedback electric current, by regulating the dutycycle of PWM, regulate the size of feedback electric current and regenerative braking torque, realize the control to regenerative braking.
Described power battery pack 1 can adopt lead-acid batteries, also can adopt lithium cell group.
Its software controlling strategies is: vehicle is stepped on the throttle pedal when accelerating or at the uniform velocity travelling, and accelerator pedal sensor feeds back to electric machine controller 2, and power battery pack 1 is in discharge regime; When vehicle is stepped on brake pedal Reduced Speed Now, brake pedal sensor feeds back to electric machine controller 2, and the work of vehicle feedback system is charged to power battery pack 1 with certain electric current; Vehicle is when sliding Reduced Speed Now, and the work of vehicle feedback system, considers driver drives vehicle sensation, and the electric current that while stepping on brake pedal Reduced Speed Now to compare vehicle, the charging current of power battery pack 1 is less is to power battery pack 1 charging.
Embodiment: vehicle lead-acid storage battery pool-size is 150Ah, operating voltage 72V, adopts 7.5KW permanent-magnet brushless DC electric machine, and when vehicle is stepped on brake pedal Reduced Speed Now, the work of vehicle feedback system, charges to lead-acid batteries with 0.33CA electric current; Vehicle is when sliding Reduced Speed Now, and vehicle feedback system work, charges to power battery pack with 0.23CA electric current, makes power battery pack always in continuous charge-discharge cycles, through test, can effectively extend the service life of storage battery, has obtained checking.
Claims (2)
1. a Regenerative Braking in Electronic Vehicle control setup, its hardware comprises permanent-magnet brushless DC electric machine (7), electric machine controller (2) and power battery pack (1), it is characterized in that: electric machine controller (2) connects permanent-magnet brushless DC electric machine (7), power battery pack (1), described electric machine controller (2) comprises Three-phase full-bridge inverter circuit (3) and control module (4), control module (4) comprises that driver module (5) and feedback braking module (6) form, described feedback braking module (6) is carried out regular PWM control to the break-make of Three-phase full-bridge inverter circuit (3) power tube, make permanent-magnet brushless DC electric machine (7) under external force in generating state, the voltage of its generation is higher than power battery pack, can be by current feedback to power battery pack, adopt the control policy of constant feedback electric current, by regulating the dutycycle of PWM, regulate the size of feedback electric current and regenerative braking torque, realize the control to regenerative braking.
2. a kind of Regenerative Braking in Electronic Vehicle control setup according to claim 1, is characterized in that: power battery pack (1) can adopt lead-acid batteries, also can adopt lithium cell group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420254918.4U CN203844620U (en) | 2014-05-17 | 2014-05-17 | Electric car brake energy feedback control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420254918.4U CN203844620U (en) | 2014-05-17 | 2014-05-17 | Electric car brake energy feedback control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203844620U true CN203844620U (en) | 2014-09-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420254918.4U Expired - Fee Related CN203844620U (en) | 2014-05-17 | 2014-05-17 | Electric car brake energy feedback control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203844620U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104627020A (en) * | 2015-02-07 | 2015-05-20 | 山东省滨州市火努鸟新能源科技有限公司 | Dual-mode strong magnetism direct current motor |
| WO2018112802A1 (en) * | 2016-12-21 | 2018-06-28 | 毕节添钰动力科技股份有限公司 | Energy feedback control device, braking system and motor vehicle |
-
2014
- 2014-05-17 CN CN201420254918.4U patent/CN203844620U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104627020A (en) * | 2015-02-07 | 2015-05-20 | 山东省滨州市火努鸟新能源科技有限公司 | Dual-mode strong magnetism direct current motor |
| WO2018112802A1 (en) * | 2016-12-21 | 2018-06-28 | 毕节添钰动力科技股份有限公司 | Energy feedback control device, braking system and motor vehicle |
| US11292345B2 (en) | 2016-12-21 | 2022-04-05 | Bijie Tianyu Power Technology Co., Ltd | Apparatus for controlling energy feedback, braking system and vehicle comprising the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20200517 |