CN102035244A - Electric vehicle energy recovery system - Google Patents
Electric vehicle energy recovery system Download PDFInfo
- Publication number
- CN102035244A CN102035244A CN2010105914256A CN201010591425A CN102035244A CN 102035244 A CN102035244 A CN 102035244A CN 2010105914256 A CN2010105914256 A CN 2010105914256A CN 201010591425 A CN201010591425 A CN 201010591425A CN 102035244 A CN102035244 A CN 102035244A
- Authority
- CN
- China
- Prior art keywords
- energy
- unit
- battery pack
- pulse
- energy recuperation
- Prior art date
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
Abstract
The invention relates to an electric vehicle energy recovery system which is used for recovering the energy of an electric vehicle and controllably charging a power battery pack. A motor driver is connected with the power battery pack in series through a DC filtering and energy recovery prestorage unit and an energy recovery high-frequency chopping and charging unit, and an energy recovery power assembly is connected with an all-digital controller and is formed by connecting the DC filtering and energy recovery prestorage unit and the energy recovery high-frequency chopping and charging unit in parallel. The all-digital controller of the invention generates a PWM (Pulse-Width Modulation) control signal by using a high-performance digital signal microprocessor as a kernel and dynamically controls DC output voltage and current according to the technological requirements of the power battery pack, the energy of the electric vehicle can be furthest recovered through a super capacitor of the DC filtering and energy recovery prestorage unit, and the battery pack can be controllably charged through the high-frequency chopping and charging unit. The invention not only can rapidly recover energy produced during braking according to the characteristics of lithium batteries to meet the requirement of prolonging the trip mileage of the electric vehicle, but also can prolong the service life of the battery pack.
Description
Technical field
The present invention relates to the automatic control technology field, is a kind of to the charging voltage of power battery pack and the electric automobile energy recovery system of controlled current specifically.
Background technology
Energy shortage and environmental protection crisis force Chinese automobile market in urgent need exploitation and produce the new forms of energy power vehicle.National planning: the overall goal to the year two thousand twenty is that the new-energy automobile recoverable amount reaches 5,000,000, make China energy-conservation with the new-energy automobile industry size occupy prostatitis, the world.But the bottleneck of restriction electric automobile development is power battery pack life-span and mileages of continuation.For this reason, electric automobile is collected a kind of effective ways that utilization (electric automobile energy recovery system) again is a prolongation electric automobile mileages of continuation at the braking energy of descending, generation when braking, and the main forms of electric automobile energy recovery at present as shown in Figure 3.Wherein sequence number 1 is motor and driver element, and 2 is super capacitor, and 4 is power battery pack.
This scheme control is simple, and cost is low, and shortcoming is that removal process is uncontrollable to the charging of battery pack.Certain type electric automobile is when brake, and the voltage of motor driver feedback is 3.2V up to 900V with battery for electric automobile group specification, 200AH, 170 lithium battery series connection to the nearly 500A of the charging current of battery pack, have substantially exceeded the ability to accept of this kind of lithium battery for example during recovery.Because the advantage of lithium battery on energy density, power density, make it to become the used for electric vehicle electrokinetic cell and become trend, but lithium battery is " enervated " relatively, in fail safe, there is hidden danger, once overcharge or cross just to put and to cause its damage, obvious above-mentioned electric automobile energy removal process very easily causes over-charge of lithium battery to make its damage, thereby shortens the battery pack life-span.
Summary of the invention
For overcoming existing electric automobile energy recovery system to the uncontrollable defective of batteries charging, goal of the invention of the present invention is to provide a kind of electric automobile energy recovery system, by the high frequency chopping conversion is combined with lithium battery group charge technology, so that the output voltage of recuperated energy and electric current can be controlled automatically, dynamically satisfy the requirement of power battery pack maximum charge ability to accept, be not subjected to the restriction of energy feedback size.
For achieving the above object, motor driver of the present invention is connected in series with power battery pack through DC filtering and the energy recuperation unit that prestores, it is characterized in that: energy recuperation high frequency chopping charhing unit is connected DC filtering and energy recuperation prestores between unit and the power battery pack, the energy recuperation (PCC) power is composed in parallel by prestore unit and energy recuperation high frequency chopping charhing unit of DC filtering and energy recuperation, the energy recuperation (PCC) power is connected with total digital controller, the energy of feedback is stored in DC filtering and energy recuperation and prestores in the unit, but by the controlled charging of energy recuperation high frequency chopping charhing unit enforcement, finish energy recuperation and charging process again to power battery pack.
Described DC filtering and the energy recuperation unit that prestores is made up of super capacitor.
Described energy recuperation high frequency chopping charhing unit is made up of device for power switching, dc inductance, diode.
Described total digital controller comprises that the driving of pulse-width signal and protective circuit, communication unit, digital signal processor and electric current and voltage detect link;
Described electric current and voltage detects link and is grouped into by dc tache voltage test section and output DC side current detecting part; The dc tache voltage test section is made up of 2 voltage sensors, its input respectively and connect DC filtering and energy recuperation prestore unit and power battery pack, detected energy reclaims the DC input voitage of high frequency chopping charhing unit and the output voltage of battery pack respectively; Output DC side current detecting part is serially connected in energy recuperation high frequency chopping charhing unit by current sensor or shunt and comes detected energy to reclaim the average anode current of high frequency chopping charhing unit;
The analog input of described digital signal processor is for detecting voltage, the current signal that link obtains from electric current and voltage, analog input interface circuit through digital signal processor carries out conversion, be input to the analog-to-digital conversion interface of digital signal processor then, digital signal processor comprises 1 tunnel pulse-width modulation delivery outlet and as 2 I/O mouths of assist control;
The driving of described pulse-width signal and protective circuit are input as 1 road width-modulation pulse signal of 1 tunnel pulse-width modulation delivery outlet of digital signal processor and 2 I/O mouths of assist control, input I/O receives the fault-signal of major loop with the I/O interface of the I/O signal in the major loop through input I/O circuit supplied with digital signal processor; The device for power switching of energy recuperation high frequency chopping charhing unit in the output I/O circuit control major loop, realize major loop operation, stop control; Pulse-width modulation power drive signal is according to system requirements, 1 road width-modulation pulse signal by the pulse-width modulation delivery outlet of digital signal processor, driving and protective circuit through pulse-width signal are exported 1 road PWM(pulse modulation) control signal, the device for power switching of energy recuperation high frequency chopping charhing unit in the control major loop;
Described communication unit adopts CAN or 485 communication form, receive operation that the electric automobile energy management system sends, suspend, stop, signal such as charge technology, simultaneously that major loop is real-time operating state shows on the touch-screen of electric automobile energy management system.
The present invention seals in electric powered motor control.Under on-positions such as electric automobile brake, descending, feedback energy at first injects DC filtering and the energy recuperation unit that prestores, accept charge technology according to the electric automobile energy management system according to determined maximums such as the state-of-charge of battery pack, temperature then, power battery pack is charged, the energy that reclaims injects power battery pack by energy recuperation high frequency chopping charhing unit through L, D1, D3.
The present invention compared with prior art, can reclaim to greatest extent the energy of electric automobile by the prestore super capacitor of unit of DC filtering and energy recuperation, but and can carry out controlled charging through energy recuperation high frequency chopping charhing unit to the electric automobile power battery group by total digital controller, battery cell is not caused any damage, the energy that produces in the time of can reclaiming braking according to the characteristic of lithium battery fast, reach the requirement that prolongs the electric automobile mileages of continuation, can prolong the useful life of battery pack again.
Description of drawings
Fig. 1 is a major loop electrical structure simplified schematic diagram of the present invention;
Fig. 2 is a module sketch of the present invention;
Fig. 3 is the existing energy recuperation electrical structure simplified schematic diagram of electric automobile.
Embodiment
As shown in Figure 1, motor driver 1 is connected in series with power battery pack 4 through DC filtering and the energy recuperation unit 2 that prestores, energy recuperation high frequency chopping charhing unit 3 is connected DC filtering and energy recuperation prestores between unit 2 and the power battery pack 4, and the pre-deposit receipt 2 of DC filtering and energy recuperation composes in parallel the energy recuperation (PCC) power with energy recuperation high frequency chopping charhing unit 3; Prestore unit 2 of DC filtering and energy recuperation is made up of super capacitor; Energy recuperation high frequency chopping charhing unit 3 is made up of device for power switching, dc inductance, diode.
As shown in Figure 2, the two ends of energy recuperation (PCC) power 5 are connected with motor driver, power battery pack respectively, energy recuperation (PCC) power 5 is connected with total digital controller 6, the energy of feedback is stored in DC filtering and energy recuperation and prestores in the unit, but implements controlled charging to power battery pack by energy recuperation high frequency chopping charhing unit again.
Total digital controller 6 comprises that the driving of pulse-width signal and protective circuit 7, communication unit 8, digital signal processor 9 and electric current and voltage detect link 10;
Electric current and voltage detects link 10 and is grouped into by dc tache voltage test section and output DC side current detecting part; The dc tache voltage test section is made up of 2 voltage sensors, and its input respectively and connect DC filtering and energy recuperation prestore unit and power battery pack detects the output voltage of the DC input voitage and the battery pack of high frequency chopping charhing unit respectively; Output DC side current detecting part is serially connected in energy recuperation high frequency chopping charhing unit by current sensor or shunt and comes detected energy to reclaim the average anode current of high frequency chopping charhing unit;
The analog input of digital signal processor 9 is for detecting voltage, the current signal that link 10 obtains from electric current and voltage, analog input interface circuit through digital signal processor 9 carries out conversion, be input to the analog-to-digital conversion interface of digital signal processor 9 then, digital signal processor 9 comprises 1 tunnel pulse-width modulation delivery outlet and as 2 I/O mouths of assist control;
The driving of pulse-width signal and protective circuit 7 are input as 1 road width-modulation pulse signal of 1 tunnel pulse-width modulation delivery outlet of digital signal processor 9 and 2 I/O mouths of assist control, input I/O receives the fault-signal of major loop with the I/O interface of the I/O signal in the major loop through input I/O circuit supplied with digital signal processor 9; The device for power switching of the high frequency chopping charhing unit 3 of output I/O circuit control major loop, realize major loop operation, stop control; Pulse-width modulation power drive signal is according to system requirements, 1 road width-modulation pulse signal by the pulse-width modulation delivery outlet of digital signal processor 9, driving and protective circuit 7 outputs 1 road PWM(pulse modulation through pulse-width signal) control signal, the device for power switching of the energy recuperation high frequency chopping charhing unit 3 in the control major loop;
Communication unit 8 adopts CAN or 485 communication form, receive operation that electric automobile energy management system 11 sends, suspend, stop, signal such as charge technology, simultaneously that major loop is real-time operating state shows on the touch-screen of electric automobile energy management system 11.
The course of work of the present invention: when electric automobile is in brake, descending, the motor of electric powered motor adjusting portion separated motor and motor driver 1 is in generating state, the energy of feedback at first injects DC filtering and the energy recuperation unit 2 that prestores, used for electric vehicle power battery pack 4 is by receiving the electric automobile power battery group 4 receivable maximum charge abilities that electric automobile energy management system 11 provides, implement the energy recuperation process is finished in power battery pack 4 chargings through energy recuperation high frequency chopping charhing unit 3.Can find out from above-mentioned analysis, the mode of this energy recuperation had both been finished the recycling of electric automobile feedback energy, simultaneously again the process control of recuperated energy in the charging scope that power battery pack 4 is allowed, promptly reach the requirement that prolongs the electric automobile mileages of continuation, prolonged the useful life of power battery pack 4 again.
Claims (4)
1. electric automobile energy recovery system, motor driver (1) is connected in series with power battery pack (4) through DC filtering and the energy recuperation unit (2) that prestores, it is characterized in that: energy recuperation high frequency chopping charhing unit (3) is connected DC filtering and energy recuperation prestores between unit (2) and the power battery pack (4), energy recuperation (PCC) power (5) is composed in parallel by prestore unit (2) and energy recuperation high frequency chopping charhing unit (3) of DC filtering and energy recuperation, energy recuperation (PCC) power (5) is connected with total digital controller (6), the energy of feedback is stored in DC filtering and energy recuperation and prestores in the unit (2), implement power battery pack (4) by energy recuperation high frequency chopping charhing unit (3) again but controlled charging.
2. electric automobile energy recovery system according to claim 1 is characterized in that: described DC filtering and the energy recuperation unit (2) that prestores is made up of super capacitor.
3. electric automobile energy recovery system according to claim 1 is characterized in that: described energy recuperation high frequency chopping charhing unit (3) is made up of device for power switching, dc inductance, diode.
4. electric automobile energy recovery system according to claim 1 is characterized in that: described total digital controller (6) comprises that the driving of pulse-width signal and protective circuit (7), communication unit (8), digital signal processor (9) and electric current and voltage detect link (10);
Described electric current and voltage detects link (10) and is grouped into by dc tache voltage test section and output DC side current detecting part; The dc tache voltage test section is made up of 2 voltage sensors, its input respectively and connect DC filtering and energy recuperation prestore unit (2) and power battery pack (4), detected energy reclaims the DC input voitage of high frequency chopping charhing unit (3) and the output voltage of battery pack (4) respectively; Output DC side current detecting part is serially connected in energy recuperation high frequency chopping charhing unit (3) by current sensor or shunt and comes detected energy to reclaim the average anode current of high frequency chopping charhing unit (3);
The analog input of described digital signal processor (9) is for detecting voltage, the current signal that link (10) obtains from electric current and voltage, analog input interface circuit through digital signal processor (9) carries out conversion, be input to the analog-to-digital conversion interface of digital signal processor (9) then, digital signal processor (9) comprises 1 tunnel pulse-width modulation delivery outlet and as 2 I/O mouths of assist control;
The driving of described pulse-width signal and protective circuit (7) are input as 1 road width-modulation pulse signal of 1 tunnel pulse-width modulation delivery outlet of digital signal processor (9) and 2 I/O mouths of assist control, input I/O receives the fault-signal of major loop with the I/O interface of the I/O signal in the major loop through input I/O circuit supplied with digital signal processor (9); The device for power switching of energy recuperation high frequency chopping charhing unit (3) in the output I/O circuit control major loop, realize major loop operation, stop control; Pulse-width modulation power drive signal is according to system requirements, 1 road width-modulation pulse signal by the pulse-width modulation delivery outlet of digital signal processor (9), driving and protective circuit (7) output 1 road PWM(pulse modulation through pulse-width signal) control signal, the device for power switching of energy recuperation high frequency chopping charhing unit (3) in the control major loop;
Described communication unit (8) adopts CAN or 485 communication form, receive operation that electric automobile energy management system (11) sends, suspend, stop, signal such as charge technology, simultaneously that major loop is real-time operating state shows on the touch-screen of electric automobile energy management system (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105914256A CN102035244A (en) | 2010-12-16 | 2010-12-16 | Electric vehicle energy recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105914256A CN102035244A (en) | 2010-12-16 | 2010-12-16 | Electric vehicle energy recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102035244A true CN102035244A (en) | 2011-04-27 |
Family
ID=43887744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105914256A Pending CN102035244A (en) | 2010-12-16 | 2010-12-16 | Electric vehicle energy recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102035244A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104935031A (en) * | 2015-05-08 | 2015-09-23 | 韩军 | Electricity storage power device with power amplification device and power drive method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237154A (en) * | 2008-02-01 | 2008-08-06 | 清华大学 | Dynamics battery-super capacitance mixed dynamic system for electric car |
| CN101291005A (en) * | 2008-04-30 | 2008-10-22 | 刘云海 | Energy management system of externally charging typed hybrid power vehicle |
| CN101630862A (en) * | 2009-08-05 | 2010-01-20 | 华南理工大学 | Power system of compound energy electro-vehicle |
| CN201947040U (en) * | 2010-12-16 | 2011-08-24 | 襄樊德普电气有限公司 | Energy recycling system for electric vehicle |
-
2010
- 2010-12-16 CN CN2010105914256A patent/CN102035244A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237154A (en) * | 2008-02-01 | 2008-08-06 | 清华大学 | Dynamics battery-super capacitance mixed dynamic system for electric car |
| CN101291005A (en) * | 2008-04-30 | 2008-10-22 | 刘云海 | Energy management system of externally charging typed hybrid power vehicle |
| CN101630862A (en) * | 2009-08-05 | 2010-01-20 | 华南理工大学 | Power system of compound energy electro-vehicle |
| CN201947040U (en) * | 2010-12-16 | 2011-08-24 | 襄樊德普电气有限公司 | Energy recycling system for electric vehicle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104935031A (en) * | 2015-05-08 | 2015-09-23 | 韩军 | Electricity storage power device with power amplification device and power drive method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103887578B (en) | Improve electrokinetic cell heating means and the system of electric automobile low temperature course continuation mileage | |
| CN201914107U (en) | Hybrid electric vehicle control system based on super capacitor | |
| CN102083665B (en) | Power storage device for hybrid or electric motor vehicles, and associated electric power management method thereof | |
| CN102069721A (en) | Super capacitor-based electric automobile hybrid power control system | |
| JP2014075966A (en) | Power supply management apparatus and method thereof | |
| CN103779622B (en) | A kind of method for managing power supply of electrokinetic cell bag | |
| CN101878577A (en) | Power supply apparatus for vehicles | |
| CN104085312A (en) | Battery management system of electric car | |
| CN101554841A (en) | Storage battery electric vehicle power supply control system | |
| CN207345512U (en) | A kind of electric automobile energy recovery control system | |
| CN101442259A (en) | DC parallel-serial transition electric power system | |
| CN202906547U (en) | Vehicle-mounted battery charging device | |
| CN104079054A (en) | Energy recovery system and method for high-tension transmission line patrol robot | |
| CN201307776Y (en) | Intelligent four-section charger | |
| CN104300648A (en) | Electric vehicle running control system | |
| CN105162225A (en) | External-mix self-reconfigurable supercapacitor battery circuit and quick charge control method | |
| CN103434411B (en) | A kind of recovery system of online charging type electric vehicle braking energy | |
| CN205034285U (en) | Self -charging electric motor car | |
| CN201018452Y (en) | Novel power installation for railway type hoisting machinery using energy storage means | |
| CN201947040U (en) | Energy recycling system for electric vehicle | |
| CN203504265U (en) | Electric vehicle charging system | |
| CN103568853A (en) | Circulative charging system | |
| CN102035244A (en) | Electric vehicle energy recovery system | |
| CN211731070U (en) | Charging device for starting battery power shortage of electric automobile | |
| CN201556962U (en) | Ground power supply charging system for hybrid power locomotive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110427 |