CN201051675Y - Balance charging maintenance system for electric vehicle battery - Google Patents
Balance charging maintenance system for electric vehicle battery Download PDFInfo
- Publication number
- CN201051675Y CN201051675Y CNU2007200187992U CN200720018799U CN201051675Y CN 201051675 Y CN201051675 Y CN 201051675Y CN U2007200187992 U CNU2007200187992 U CN U2007200187992U CN 200720018799 U CN200720018799 U CN 200720018799U CN 201051675 Y CN201051675 Y CN 201051675Y
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- battery
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- single chip
- chip computer
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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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The utility model discloses a battery equalizing charging maintenance system for electric motors, comprising a real-time detecting circuit which is electrically connected. The real-time detecting circuit is electrically connected with a single-chip processor which is electrically connected with a buffer, the buffer is electrically connected with a driving circuit which is electrically connected with a discharging circuit, and the discharging circuit is electrically connected with a battery box. The system can realize the impulse discharge to battery with higher voltage, which not only maintains the battery, and effectively reduces vulcanization, but also balances the voltage of a group battery, and ensures each accumulator to reach the largest capacity after the battery charging.
Description
Technical field
The utility model relates to a kind of charging system of electric motor car.
Background technology
Storage battery is as a key element of electric motor car, and its quality directly affects the operating range of electric motor car.Because the self discharge of battery, internal resistance, capacity there are differences, it is of poor quality to add charger, causes battery capacity difference increasing, and the electric motor car stroke distances is shorter and shorter, has this phenomenon in electromobile battery more than 85%.Battery tension is high more, and this phenomenon is obvious more.Along with the raising of market to the requirement of electric motor car speed, mileages of continuation, the battery tension of electric motor car develops into 48V, 60V again from 24V to 36V, voltage is more and more higher, and the difficulty of battery pack pairing becomes big, the pairing degradation, this just needs a kind of system and adjusts compensation.
Summary of the invention
The purpose of this utility model provides a kind of battery of electric vehicle equalizing charge maintenance system, its have can be in the process of charging to battery pack in the higher battery of voltage carry out pulsed discharge and safeguard, the efficient balance battery voltage, effectively reduce storage battery vulcanization simultaneously, guarantee that charging finishes the every battery in back and can both reach heap(ed) capacity, can not cause the deterioration of difference in the long-term use because of the difference of itself between battery.
The technical scheme in the invention for solving the above technical problem is: battery of electric vehicle equalizing charge maintenance system, comprise real-time detection circuit, real-time detection circuit and processor of single chip computer electrically connect, processor of single chip computer and buffer electrically connect, buffer and drive circuit electrically connect, drive circuit and discharge circuit electrically connect, and discharge circuit and battery case electrically connect.
Above-mentioned battery of electric vehicle equalizing charge maintenance system also comprises a power circuit and the charging control circuit for the processor of single chip computer power supply, the end pin of power circuit is connected with the end pin of processor of single chip computer, and an end pin of charging control circuit is connected with an end pin of processor of single chip computer.
The calibration terminal ground connection of above-mentioned processor of single chip computer definition, standard preset voltage of voltage detecting termination, the automatic calculated resistance voltage ratio of single-chip microcomputer, reference voltage, and be kept in the single-chip microcomputer, when charging later on, call this parameter automatically, after self-correcting was finished, indicator light showed.
Above-mentioned real-time detection circuit is arranged on the same end of every joint storage battery to be charged, and each real-time detection circuit is gathered the voltage signal of its test point and is transferred to processor of single chip computer.
Above-mentioned processor of single chip computer is analyzed by the voltage signal that real-time detection circuit is collected, determine the voltage of each storage battery, if a certain cell voltage is too high, processor of single chip computer sends closure signal to buffer, the buffer output pulse signal, when real-time detection circuit collected this battery tension and other cell voltage differences less than set point, processor of single chip computer sent cut-off signal to buffer.When certain piece cell voltage reaches the single battery ceiling voltage, and other cell voltages are when also low, the Single-chip Controlling charging control circuit stops charge in batteries, to higher battery impulse discharge, this battery tension and other cell voltage differences are during less than set point, and the Single-chip Controlling charging control circuit continues storage battery is charged.
After above-mentioned buffer is received the close command of processor, control corresponding discharge circuit closure by the drive circuit that is connected on the storage battery two ends, make this battery impulse discharge, receive the open command of processor when buffer after, control corresponding discharge circuit by the drive circuit that is connected on the storage battery two ends and disconnect.
Above-mentioned discharge circuit is connected in parallel on every joint storage battery to be charged two ends.
Be connected with metal-oxide-semiconductor in the above-mentioned drive circuit, drive circuit disconnects with closed by metal-oxide-semiconductor control discharge circuit.
Above-mentioned processor of single chip computer also has and finishes back control power supply in charging and stop function for charge in batteries.
The beneficial effects of the utility model are: owing to be provided with a real-time detection circuit in each storage battery same end, the battery tension signal of the correspondence that each real-time detection circuit will collect is transferred to processor of single chip computer, processor of single chip computer compares signal, determine the storage battery of overtension, give closure signal of buffer, make the metal-oxide-semiconductor conducting in the drive circuit of this storage battery correspondence, make the discharging circuit conduction of this storage battery correspondence, this storage battery is carried out pulsed discharge; When processor finds that this storage battery is identical with other battery tensions, promptly give cut-off signal of buffer, metal-oxide-semiconductor in the drive circuit of this storage battery correspondence is disconnected, the discharge circuit of this storage battery correspondence is opened circuit, this storage battery stops discharge, make the charging that each storage battery can both be balanced, effectively reduced sulfuration, make each storage battery after charging finishes to reach heap(ed) capacity.
Description of drawings
Accompanying drawing 1 is a structured flowchart of the present utility model;
Accompanying drawing 2 is the structure chart of processor of single chip computer described in the utility model;
Accompanying drawing 3 is the structure chart of buffer described in the utility model;
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail, battery of electric vehicle equalizing charge maintenance system, comprise real-time detection circuit, the end pin of real-time detection circuit holds pin to be connected with processor of single chip computer accordingly, processor of single chip computer is connected by corresponding end pin with buffer, buffer is connected by corresponding end pin with each drive circuit, forms a loop; Real-time detection circuit detects the voltage of each storage battery, and be electrically connected with discharge circuit and drive circuit, discharge circuit is connected on the two ends of storage battery to be charged, and drive circuit is by the closure and the disconnection of metal-oxide-semiconductor control discharge circuit, the calibration terminal ground connection of processor of single chip computer definition, standard preset voltage of voltage detecting termination, the automatic calculated resistance voltage ratio of single-chip microcomputer, reference voltage, and be kept in the single-chip microcomputer, during charging later on, automatically call this parameter, after self-correcting was finished, indicator light showed; Processor of single chip computer also is furnished with a power circuit and charging control circuit, and power circuit provides power supply for processor of single chip computer, and whether processor of single chip computer is controlled by charging control circuit and storage battery is charged.
When charging for storage battery, each real-time detection circuit is gathered the voltage signal of each storage battery, and pass to processor of single chip computer, processor of single chip computer is analyzed by the voltage signal that real-time detection circuit is collected, determine the voltage of each storage battery, if a certain cell voltage is too high, processor of single chip computer sends closure signal to buffer, the buffer output pulse signal, when real-time detection circuit collected this battery tension and other cell voltage differences less than set point, processor of single chip computer sent cut-off signal to buffer.When certain piece cell voltage reaches the single battery ceiling voltage, and other cell voltages are when also low, the Single-chip Controlling charging control circuit stops charge in batteries, to higher battery impulse discharge, this battery tension and other cell voltage differences are during less than set point, the Single-chip Controlling charging control circuit continues as charge in batteries, treat that each storage battery is full of electricity after, processor of single chip computer control charge power supply stops to be charge in batteries.
This system adopts processor of single chip computer to control by implementing testing circuit in charging process, judge the voltage relationship between every joint storage battery, the storage battery higher to voltage carries out pulsed discharge, both battery maintenance, effectively reduce sulfuration, balancing battery group voltage is guaranteed all can reach heap(ed) capacity after every battery charge finishes again, can not occur the rare hydrogen that causes because of voltage is unbalanced in the charging process.This circuit begins to finish whole process to charging from charging and all plays the maintenance effect, and the capacity volume variance of adjusting storage battery that can be in a big way is even when the charger quality is unstable, also can protect battery to prevent to overcharge.
Native system can be applied in again on the electric elements such as battery case, charger when can using separately, and therefore protection range of the present utility model is not limited to native system, and electric elements such as the battery case of use native system, charger also should be within protection range.
Claims (6)
1. battery of electric vehicle equalizing charge maintenance system, it is characterized in that comprising that real-time detection circuit electrically connects, real-time detection circuit and processor of single chip computer electrically connect, processor of single chip computer and buffer electrically connect, buffer and drive circuit electrically connect, drive circuit and discharge circuit electrically connect, and discharge circuit and battery case electrically connect.
2. battery of electric vehicle equalizing charge maintenance system according to claim 1, it is characterized in that this system also comprises a power circuit and the charging control circuit for the processor of single chip computer power supply, the end pin of power circuit is connected with the end pin of processor of single chip computer, and an end pin of charging control circuit is connected with an end pin of processor of single chip computer.
3. battery of electric vehicle equalizing charge maintenance system according to claim 1, the calibration terminal ground connection that it is characterized in that the processor of single chip computer definition, standard preset voltage of voltage detecting termination, the automatic calculated resistance voltage ratio of single-chip microcomputer, reference voltage, and be kept in the single-chip microcomputer, when charging later on, call this parameter automatically, after self-correcting was finished, indicator light showed.
4. battery of electric vehicle equalizing charge maintenance system according to claim 1, it is characterized in that described real-time detection circuit is arranged on the same end of every joint storage battery to be charged, each real-time detection circuit is gathered the voltage signal of its test point and is transferred to processor of single chip computer.
5. battery of electric vehicle equalizing charge maintenance system according to claim 1 is characterized in that described discharge circuit is connected in parallel on every joint storage battery to be charged two ends.
6. battery of electric vehicle equalizing charge maintenance system according to claim 1 is characterized in that being connected with metal-oxide-semiconductor in the described drive circuit, and drive circuit disconnects with closed by metal-oxide-semiconductor control discharge circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200187992U CN201051675Y (en) | 2007-02-15 | 2007-02-15 | Balance charging maintenance system for electric vehicle battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200187992U CN201051675Y (en) | 2007-02-15 | 2007-02-15 | Balance charging maintenance system for electric vehicle battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201051675Y true CN201051675Y (en) | 2008-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200187992U Expired - Fee Related CN201051675Y (en) | 2007-02-15 | 2007-02-15 | Balance charging maintenance system for electric vehicle battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201051675Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117576A (en) * | 2013-02-01 | 2013-05-22 | 四川电力科学研究院 | Storage battery voltage balancing device |
| CN103580093A (en) * | 2012-07-19 | 2014-02-12 | 福特全球技术公司 | Vehicle battery charging system and method |
| CN104369674A (en) * | 2013-08-16 | 2015-02-25 | 上海汽车集团股份有限公司 | Storage battery maintenance in automobile driving process |
| US9467002B2 (en) | 2012-07-19 | 2016-10-11 | Ford Global Technologies, Llc | Vehicle charging system |
| CN108790877A (en) * | 2018-06-08 | 2018-11-13 | 衢州学院 | A kind of electric vehicle rapid charging method at DC charging station |
| US10773596B2 (en) | 2012-07-19 | 2020-09-15 | Ford Global Technologies, Llc | Vehicle battery charging system and method |
-
2007
- 2007-02-15 CN CNU2007200187992U patent/CN201051675Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580093A (en) * | 2012-07-19 | 2014-02-12 | 福特全球技术公司 | Vehicle battery charging system and method |
| US9467002B2 (en) | 2012-07-19 | 2016-10-11 | Ford Global Technologies, Llc | Vehicle charging system |
| US10773596B2 (en) | 2012-07-19 | 2020-09-15 | Ford Global Technologies, Llc | Vehicle battery charging system and method |
| CN103117576A (en) * | 2013-02-01 | 2013-05-22 | 四川电力科学研究院 | Storage battery voltage balancing device |
| CN103117576B (en) * | 2013-02-01 | 2015-01-21 | 四川电力科学研究院 | Storage battery voltage balancing device |
| CN104369674A (en) * | 2013-08-16 | 2015-02-25 | 上海汽车集团股份有限公司 | Storage battery maintenance in automobile driving process |
| CN104369674B (en) * | 2013-08-16 | 2016-08-10 | 上海汽车集团股份有限公司 | Battery service in vehicle traveling process |
| CN108790877A (en) * | 2018-06-08 | 2018-11-13 | 衢州学院 | A kind of electric vehicle rapid charging method at DC charging station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Qingdao AUCMA Electric Technology Co., Ltd. Assignor: Qingdao Aucma Electric Technology Co., Ltd. Contract record no.: 2011370000470 Denomination of utility model: Balance charging maintenance system for electric vehicle battery Granted publication date: 20080423 License type: Exclusive License Record date: 20111104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080423 Termination date: 20150215 |
|
| EXPY | Termination of patent right or utility model |