CN202019301U - Vehicular high-power DC/DC (direct current/direct current) driving power source - Google Patents
Vehicular high-power DC/DC (direct current/direct current) driving power source Download PDFInfo
- Publication number
- CN202019301U CN202019301U CN2011200267866U CN201120026786U CN202019301U CN 202019301 U CN202019301 U CN 202019301U CN 2011200267866 U CN2011200267866 U CN 2011200267866U CN 201120026786 U CN201120026786 U CN 201120026786U CN 202019301 U CN202019301 U CN 202019301U
- Authority
- CN
- China
- Prior art keywords
- power
- input
- driving power
- automobile
- output
- 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.)
- Expired - Fee Related
Links
- 238000012545 processing Methods 0.000 claims abstract description 23
- 230000009466 transformation Effects 0.000 claims abstract description 13
- 238000002955 isolation Methods 0.000 claims description 11
- 230000001012 protector Effects 0.000 claims description 5
- 238000003860 storage Methods 0.000 abstract description 10
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000007726 management method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model provides a vehicular high-power DC/DC (direct current/direct current) driving power source, which comprises a PWM (pulse width modulation) controller, a BMS (battery management system) control signal processing unit, a synchronizing signal processing unit, a over-temperature protection processing unit connected with the PWM controller, a power switch component, an input current sensor, an isolating transformation component, a full-bridge rectifier filter, an output current sensor and an output voltage sensor. An output signal of the PWM controller after being amplified and driven by current is input into the power switch component, the isolating transformation component is respectively connected with an input power line and the power switch component, the full-bridge rectifier filter is connected with the isolating transformation component, and the output current sensor and the output voltage sensor are used for receiving signals from the full-bridge rectifier filter and inputting the signals to the PWM controller after feedback. The vehicular high-power DC/DC driving power source is a driving power source specially designed for secondary automobile drive and converts lower input voltage into required high voltage to fit an automobile, so that the used serially-connected quantity of secondary storage batteries is obviously decreased and the batteries are easy to be standardized.
Description
Technical field
The utility model relates to a kind of automobile-used driving power, is specifically related to a kind of automobile-used high power D C/DC driving power.
Background technology
Along with the problem of the energy, environmental protection becomes increasingly conspicuous, hybrid vehicle and pure electric automobile are assert the cleaning green car, have obtained high speed development.But the current stage provides the storage battery of energy to exist than obvious defects: its output characteristic is soft partially and dynamic property is relatively poor, and promptly the size with power output changes the also corresponding change of its voltage.Various in addition model automobile required voltages are also inconsistent, for making the storage battery standardization, adopt the driving power of a DC/DC to carry out voltage matches and conversion with regard to needing.This power supply all need carry out careful consideration rationally because power is big to reliability, fail safe that circuit framework is selected.Below introduce related art from circuit framework, security reliability aspect.
One, circuit framework
Hybrid vehicle and pure electric vehicle high power D C/DC driving power generally adopt single-stage BOOST, single-stage BUCK or single-grade bridge type circuit topology at present, and single-stage BOOST and single-stage BUCK are simple in structure, also easily are designed to high-power.But electric shock accidents easily takes place for ground in its input, output.In case also can influence each other after inputing or outputing existing fault, also very easily cause the input short circuit as output short-circuit.Though the one pole bridge type topology can be designed to the I/O electrical isolation, required element is also less, because the single-stage volume is big, the material requested difficulty is obtained, and costs an arm and a leg, as switching tube, magnetic core element.Because the single-stage volume is bigger, be unfavorable for making full use of of motor space in addition, the performance single size is unfavorable for contour structures optimization.
Two, security reliability
Present automobile-used high power D C/DC power supply by the secondary energy storage battery being carried out the buck or boost operation, do not change output characteristic or very little with load variations with load variations, solved the problem of the soft partially and bad dynamic performance of storage battery output characteristic.But its control strategy and protection are also very simple, can not protect two utmost point storage batterys, main battery and driving power itself effectively, can not satisfy the requirement of automobile-used driving power fully.
The utility model content
The utility model has overcome deficiency of the prior art, and a kind of automobile-used high power D C/DC driving power is provided, and can protect two utmost point storage batterys, main battery and driving power safely and reliably, and be beneficial to making full use of of motor space.
For achieving the above object, the utility model adopts following technical scheme:
A kind of automobile-used high power D C/DC driving power comprises: the PWM controller; BMS control signal processing unit sends treated signal to described PWM controller; The synchronizing signal processing unit receives from the signal of controlling power supply and the signal after will handling is sent to described PWM controller; The overheat protector processing unit that links to each other with described PWM controller; Power switch assembly, the output signal of described PWM controller be this power switch assembly of input after electric current amplifies driving; The input current transducer detects the input power line and the input current data delivery is arrived described PWM controller and described power switch assembly; The isolation transformation assembly that links to each other with the power switch assembly with described input power line respectively; The full-bridge rectification filter that links to each other with described isolation transformation assembly; Output current transducer and output voltage sensor receive the signal from described full-bridge rectification filter, the described PWM controller of input after feeding back.
Described input power line comprises that input negative pole and input are anodal, and described input negative pole connects the input current transducer, the described isolation transformation assembly of the anodal connection of described input.
Described power switch assembly be four respectively with described input current transducer power switch pipe in parallel; Described isolation transformation assembly be four respectively with the anodal isolating transformer in parallel of described input.
Link to each other with described rectifier filter again after described four isolating transformers series connection.
Described BMS control signal processing unit connects BMS through control signal wire.
Described BMS receives signal from described driving power by input current and output current pressure-wire.
Described driving power output links to each other with main battery and receives automobile main battery synchronizing signal.
Described driving power input links to each other with the secondary batteries, is provided with circuit breaker between this secondary batteries and the driving power.
The utility model aims at the secondary automobile and drives designed driving power, convert the suitable required high pressure of automobile to lower input voltage, obviously reduce the secondary storage battery and use series connection quantity, make battery be easy to standardization, take above-mentioned a series of technological means simultaneously, secondary storage battery and main electronic pond are all taked optimal control, make it the life-span to prolong greatly, reliability improves greatly.Many weeks, battery series connection quantity is low more, and its life-span is low more, and its management is complicated more, and reliability is also low more.By the utility model, on technical know-how, the battery reliability is reduced more than 5 times, its management cost also reduces more than 5 times.
Description of drawings
Fig. 1 is driving power of the present utility model and external equipment electrical connection diagram.
Fig. 2 is a control principle block diagram of the present utility model.
Embodiment
For the ease of those skilled in the art's understanding, the utility model is described in further detail below in conjunction with specific embodiment and accompanying drawing thereof.
Of the present utility modelly be contemplated that substantially:
1, adopt multi-module structure, make input be equivalent to parallel connection, the output series connection converts lower secondary battery tension to automobile required higher output voltage; The mode of four power switch pipes of employing as shown in Figure 2, the output of input current transducer 214 wherein link to each other with four power switch pipes respectively.
2, adopt the push-pull topology structure, input and output transmit energy by isolating the transformation assembly, input and output are isolated fully, as shown in Figure 2, four isolating transformers have been adopted, isolating transformer 218 links to each other with isolating transformer 213, and power switch pipe 217 links to each other with isolating transformer 213, and the output of input power line 215 links to each other with four isolating transformers respectively.
3, input stage adopts by pulsewidth peak value current-limiting mode, has promptly adopted input current sensing 214 as shown in Figure 2, effectively prevents the magnetic saturation that magnetic bias causes.
4, adopt output feedback processing 27 as shown in Figure 2, output is worked under constant current control model or constant voltage control model, and the control Maximum Power Output prevents that the secondary storage battery from surpassing its specified multiplying power discharging and surpassing the main battery charging limit;
5, employing synchronizing signal processing unit 24 as shown in Figure 2, driving power work triggering signal is got automobile main battery relay synchronizing signal, and only work when the main battery demand is charged of driving power guarantees its safety operation;
6, employing BMS control signal processing unit 22 as shown in Figure 2, output voltage, electric current and input current are passed to battery management system, analyze its data by battery management, send control command, optimize the battery control mode, with extending battery life;
7, employing BMS control signal processing unit 22 as shown in Figure 2, external cutting off signal of driving power links to each other with battery management system, and battery management system detects monomer voltage and crosses when hanging down, and turn-offs driving power, stops discharge, guarantees its each single battery safety;
8, simultaneously through optimal design, the output voltage electric current can be regulated by the bulk potential device on a large scale, identical product only needs simply to regulate, and can satisfy the most of vehicle in market, is easy to produce and maintenance, reduces cost greatly.
The utility model preferred embodiment as shown in Figure 1, driving power and external equipment electrical connection diagram be respectively by driving power 1, automobile synchronizing signal 2, circuit breaker 3, secondary batteries 4, control signal 5, BMS (battery management system) 6, input current and output current pressure-wire 7, main battery 8 constitutes, Fig. 2 shows control principle block diagram of the present utility model, and respectively by PWM controller 21, the BMS control signal handles 22, control power supply 23, synchronizing signal handles 24, and overheat protector handles 25, and input current handles 26, output feedback processing 27, PWM output 28, electric current amplifies driving 29, output current transducer 210, input voltage sensor 211, full-bridge rectification filtering output 212 is isolated the transformation assembly, i.e. the first isolating transformer 218-the 4th isolating transformer 213; Input current transducer 214, input power line (input negative pole 219 and input anodal 215), the power switch assembly, promptly the first power switch pipe 216-the 4th power switch pipe 217 constitutes.
BMS control signal processing unit 22 sends treated signal to described PWM controller 21.Synchronizing signal processing unit 24 receives from the signal of control power supply 23 and the signal after will handling is sent to described PWM controller 21.Overheat protector processing unit 25 links to each other with described PWM controller 21.The output signal of PWM controller 21 amplify to drive the back through electric current and imports the first power switch pipe 216-the 4th power switch pipe 217 totally four tunnel.Input current transducer 214 arrives the described first power switch pipe 216-the 4th power switch 217 with the input current data delivery after detecting input power line (the input negative pole 219 that connects the input power line), also is transported to described PWM controller 21 by input current processor 26 simultaneously.The first isolating transformer 218-the 4th isolating transformer 213 four the tunnel links to each other with the input of described input power line anodal 215 respectively totally, and the first isolating transformer 218-the 4th isolating transformer 213 has connected the output of the first power switch pipe 216-the 4th power switch 217 respectively.Link to each other with full-bridge rectification filter 212 again after 213 series connection of the described first isolating transformer 218-the 4th isolating transformer.Full-bridge rectification filter 212 and the signal that output current transducer 210 and output voltage sensor 211 receive from described full-bridge rectification filter 212 are imported described PWM controller 21 after feeding back.
Described BMS control signal processing unit 22 connects BMS 6 through control signal wire 5.The signal that described BMS6 receives from described driving power 1 by input current and output current pressure-wire 7.Described driving power output links to each other with main battery 8 and receives automobile main battery synchronizing signal 2.Described driving power input links to each other with secondary batteries 4, is provided with circuit breaker 3 between this secondary batteries 4 and the driving power 1.
The implementation method of power drives is as follows in detail:
Step 1: by a relay isolated controlling control power supply 23, give the PWM controller 21 power supplies with automobile main battery synchronizing signal 2.
Step 2:PWM controller 21 is handled back output PWM output 28, amplifies through electric current to drive 29, drives the first power switch pipe 216-the 4th power switch 217.
Step 3: the first power switch pipe 216-the 4th power switch 217 promotes the first isolating transformer 218-the 4th isolating transformer 213 respectively, and filtering outputs to main battery 8 through full-bridge rectification.
Step 4: output current transducer 210 and output voltage sensor 211 are sent into output feedback processing 27, send into PWM controller 21 again, realize exporting and work in constant current mode mode or constant voltage mode mode.
Step 5: input current transducer 214 is got the peak current of transformer and is sent into PWM controller 21 by input current processing 26, surpass set point as peak current and automatically shut down and restart PWM controller 21, realize preventing the magnetic saturation that magnetic bias causes by pulsewidth peak value current limliting.
Step 6: get a temperature switch and send into PWM controller 21, behind excess temperature, turn-off output,, restart output again in case temperature is lower than set point through excess temperature processing 26.
Step 7: input current and output current pressure-wire 7 are sent into BMS6, and BMS6 analyzes data, as surpassing set point, send into PWM controller 21 by control signal wire 5, and optimal control reaches prolongation secondary storage battery and main battery life-span.
Step 8:BMS6 sampling secondary batteries 4 when single battery is lower than set point, is turn-offed output, and the realization monomer voltage is crossed and put, and realizes extending battery life.
Adopt above-mentioned control power supply and control method, can reach following technique effect:
1, passes through multi-module structure, make input in parallel, the output series connection, reduce the monomer volume greatly, be convenient to material selection, reduce cost, be easy to simultaneously convert the required high voltage of automobile to low voltage, make input go here and there still less battery strings as far as possible, extending battery life and reduce the battery management cost improves stability.
2, make the input and output electrical isolation by the transformer isolation technology, improve fail safe.
3, the low pressure constant current is adopted in output, and high pressure subtracts stream mode, is exclusively used in the secondary automobile and drives battery control, avoids main battery is overcharged.
4, output switch and automobile main battery relay control signal are synchronous, guarantee safety operation.
5, output voltage, current monitoring data are optimized the battery control mode, extending battery life to battery management system.
6, add shutoff signal and link to each other, bonding batteries safety with battery management system.
7, the output voltage electric current can be regulated on a large scale, and the product range of application is wide, easy-to-use production simultaneously and maintenance.
8, perfect defencive function comprises (input overcurrent, under-voltage, the output overcurrent of input, output overvoltage and overheat protector).
9, all defencive functions all are designed to auto restore facility, are fit to very much automobile and drive occasion.
Claims (8)
1. an automobile-used high power D C/DC driving power is characterized in that, comprising:
The PWM controller;
BMS control signal processing unit sends treated signal to described PWM controller;
The synchronizing signal processing unit receives from the signal of controlling power supply and the signal after will handling is sent to described PWM controller;
The overheat protector processing unit that links to each other with described PWM controller;
Power switch assembly, the output signal of described PWM controller be this power switch assembly of input after electric current amplifies driving;
The input current transducer detects the input power line and the input current data delivery is arrived described PWM controller and described power switch assembly;
The isolation transformation assembly that links to each other with the power switch assembly with described input power line respectively;
The rectifier filter that links to each other with described isolation transformation assembly;
Output current transducer and output voltage sensor receive the signal from described full-bridge rectification filter, the described PWM controller of input after feeding back.
2. automobile-used high power D C/DC driving power as claimed in claim 1 is characterized in that, described input power line comprises that input negative pole and input are anodal, and described input negative pole connects the input current transducer, the described isolation transformation assembly of the anodal connection of described input.
3. automobile-used high power D C/DC driving power as claimed in claim 2 is characterized in that, described power switch assembly be four respectively with described input current transducer power switch pipe in parallel; Described isolation transformation assembly be four respectively with the anodal isolating transformer in parallel of described input.
4. automobile-used high power D C/DC driving power as claimed in claim 3 is characterized in that, links to each other with described rectifier filter after described four isolating transformers series connection again.
5. automobile-used high power D C/DC driving power as claimed in claim 1 is characterized in that described BMS control signal processing unit connects BMS through control signal wire.
6. automobile-used high power D C/DC driving power as claimed in claim 5 is characterized in that, described BMS receives signal from described driving power by input current and output current pressure-wire.
7. automobile-used high power D C/DC driving power as claimed in claim 1 is characterized in that, described driving power output links to each other with main battery and receives automobile main battery synchronizing signal.
8. automobile-used high power D C/DC driving power as claimed in claim 1 is characterized in that, described driving power input links to each other with the secondary batteries, is provided with circuit breaker between this secondary batteries and the driving power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200267866U CN202019301U (en) | 2011-01-26 | 2011-01-26 | Vehicular high-power DC/DC (direct current/direct current) driving power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200267866U CN202019301U (en) | 2011-01-26 | 2011-01-26 | Vehicular high-power DC/DC (direct current/direct current) driving power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202019301U true CN202019301U (en) | 2011-10-26 |
Family
ID=44812968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200267866U Expired - Fee Related CN202019301U (en) | 2011-01-26 | 2011-01-26 | Vehicular high-power DC/DC (direct current/direct current) driving power source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202019301U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624236A (en) * | 2011-01-26 | 2012-08-01 | 陈冠豪 | Vehicle high-power DC/DC driving power supply and driving method |
| CN105911391A (en) * | 2016-04-28 | 2016-08-31 | 中国铁建电气化局集团第工程有限公司 | RPLDECT rail potential limiting apparatus electrical apparatus characteristics tester |
| WO2022161451A1 (en) * | 2021-01-29 | 2022-08-04 | 合肥创源车辆控制技术有限公司 | High-side current collection and safety protection circuit for power electronic switch tube |
-
2011
- 2011-01-26 CN CN2011200267866U patent/CN202019301U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624236A (en) * | 2011-01-26 | 2012-08-01 | 陈冠豪 | Vehicle high-power DC/DC driving power supply and driving method |
| CN105911391A (en) * | 2016-04-28 | 2016-08-31 | 中国铁建电气化局集团第工程有限公司 | RPLDECT rail potential limiting apparatus electrical apparatus characteristics tester |
| CN105911391B (en) * | 2016-04-28 | 2018-09-14 | 中国铁建电气化局集团第一工程有限公司 | A kind of RPLDECT rails potential limiting device opering characteristic of electric apparatus tester |
| WO2022161451A1 (en) * | 2021-01-29 | 2022-08-04 | 合肥创源车辆控制技术有限公司 | High-side current collection and safety protection circuit for power electronic switch tube |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101882806B (en) | Storage battery charging and discharging device | |
| CN201774301U (en) | High frequency switch DC supply system for substation | |
| CN105337328B (en) | Charging circuit and system for rechargeable battery | |
| CN203056660U (en) | An electric vehicle smart charger | |
| CN103427702A (en) | Digitization power system capable of achieving positive and negative pulse combination quick-acting charging of electric car | |
| CN103328253B (en) | The charging system with two-way charge controller charging for automobile batteries | |
| CN103618366B (en) | A kind of intelligent ship charger and charging method | |
| CN103248097A (en) | A photovoltaic charging system and method for an all-vanadium redox flow battery | |
| CN103441694A (en) | Large-power distribution type energy storage converter | |
| CN201985596U (en) | Wireless charging system for electric automobile | |
| CN202019301U (en) | Vehicular high-power DC/DC (direct current/direct current) driving power source | |
| CN102709976A (en) | Common bus energy-saving recovery type storage battery charging-discharging power supply equipment | |
| CN202798052U (en) | Power supply apparatus for fork truck | |
| CN102487211B (en) | Battery charging equipment | |
| CN102624236A (en) | Vehicle high-power DC/DC driving power supply and driving method | |
| CN103368235A (en) | Nickel-metal hydride battery charge-discharge circuit in uninterruptible power supply | |
| CN203690904U (en) | Self-protection online direct-current output circuit | |
| CN201623508U (en) | Vehicle-mounted power battery charger with CAN communication function | |
| CN204761314U (en) | Be applied to electric power supply unit that gets of cable worker well | |
| CN201601198U (en) | Vehicle-mounted hybrid and pure electrically-driven power battery charger | |
| CN103633718A (en) | Hybrid feedback type charging circuit, charger and charging method | |
| CN102480134B (en) | A kind of solar recharging system | |
| CN207124475U (en) | Energy-storage system | |
| CN203119587U (en) | Voltage-reducing chopper three-segment charger | |
| CN102570587A (en) | Method for high-power distributed power supply |
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 |
Granted publication date: 20111026 Termination date: 20160126 |
|
| EXPY | Termination of patent right or utility model |