CN104578270A - Vehicle-mounted low-voltage power supply device for battery electric vehicle - Google Patents
Vehicle-mounted low-voltage power supply device for battery electric vehicle Download PDFInfo
- Publication number
- CN104578270A CN104578270A CN201410813207.0A CN201410813207A CN104578270A CN 104578270 A CN104578270 A CN 104578270A CN 201410813207 A CN201410813207 A CN 201410813207A CN 104578270 A CN104578270 A CN 104578270A
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- CN
- China
- Prior art keywords
- voltage
- low
- vehicle
- power supply
- internal battery
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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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
Abstract
The invention relates to a vehicle-mounted low-voltage power supply device for a battery electric vehicle. The vehicle-mounted low-voltage power supply device is characterized in that a high voltage input end and a low voltage output end are arranged on the vehicle-mounted low-voltage power supply device; the vehicle-mounted low-voltage power supply device is composed of a DC-DC module, a center control module, an electricity supplementing circuit, a control output circuit and a build-in storage battery; the DC-DC module is connected with the electricity supplementing circuit, and the control output circuit; the center control module is connected with the DC-DC module, the electricity supplementing circuit, the control output circuit and the build-in battery; the build-in battery is connected with the electricity supplementing circuit; the input end of the DC-DC module is the high voltage input end of the vehicle-mounted low-voltage power supply device; the output end of the control output circuit is the low voltage output end of the vehicle-mounted low-voltage power supply device. The vehicle-mounted low-voltage power supply device solves the problem of complexity in the electric system of the whole vehicle, caused by the existing structure, the whole vehicle system arrangement difficulty is reduced, system reliability is enhanced and the space is effectively saved.
Description
Technical field
The present invention relates to the vehicle-mounted low-voltage power supply of a kind of pure electric automobile.
Background technology
Current pure electric automobile can be equipped with that the larger normal battery of 12V of 1 piece of capacity is in parallel with 1 DC-DC module powers for low-pressure system in car usually, cause car load electric system complicated thus, and Full Vehicle System is arranged, and difficulty strengthens and reduces system reliability.The control method of a kind of integrated form low-tension supply of patent Introduction of the present invention, can effective conserve space, well solves the problems referred to above.
Summary of the invention
For problems of the prior art, the object of the present invention is to provide a kind of pure electric automobile technical scheme of vehicle-mounted low-voltage power supply.
The described vehicle-mounted low-voltage power supply of a kind of pure electric automobile, it is characterized in that: vehicle-mounted low-voltage power supply is provided with high voltage input terminal and low-voltage output, vehicle-mounted low-voltage power supply by DC-DC module, middle control module, mend circuit, control output circuit and internal battery and form, DC-DC module with benefit circuit, control output circuit and be connected, middle control module with DC-DC module, mend circuit, control output circuit and be connected with internal battery, internal battery is connected with the electric circuit of benefit; The input of DC-DC module and the high voltage input terminal of vehicle-mounted low-voltage power supply, control the output of output circuit and the low-voltage output of vehicle-mounted low-voltage power supply.
The described vehicle-mounted low-voltage power supply of a kind of pure electric automobile, is characterized in that described internal battery is that the low-voltage load of middle control module and pure electric automobile is powered.
The described vehicle-mounted low-voltage power supply of a kind of pure electric automobile, is characterized in that the control method of described vehicle-mounted low-voltage power supply is as follows:
Middle control module detects the voltage status of internal battery in real time, when central control module detects that internal battery is in low-voltage state, middle control module detects high voltage input terminal and whether connects high voltage source, as access failure high voltage source detected, then when internal battery voltage reduces further, middle control module cutting-off controlling output circuit, makes low-voltage output be in off state, guarantees that internal battery is unlikely to power shortage; As detected, high voltage input terminal connects high voltage source, then, control module controls DC-DC module carries out voltage transitions, and powered directly to low-voltage load by low-voltage output, control module controls simultaneously and mend electric circuit working to internal battery benefit electricity, after internal battery voltage is increased to rated voltage, middle control module controls is mended circuit and is quit work, no longer to built-in charge in batteries, middle control module enters resting state simultaneously, until middle control module detects that internal battery is waken up when being in low-voltage state again.
Internal battery is connected with DC-DC module by mending circuit by the present invention, directly can charge to internal battery when DC-DC module is powered to low-voltage load, then directly when high voltage input terminal does not connect high voltage source by internal battery, low-voltage load to be powered, only just stop when internal battery brownout powering to low-voltage load, and realize the charging to internal battery when next time connects high voltage source; Instant invention overcomes the problem that existing structure causes car load electric system complexity, Full Vehicle System is arranged, and difficulty reduces and enhances system reliability, can effectively save space.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure: 1-DC-DC module; Module is controlled in 2-; 3-mends circuit; 4-controls output circuit; The vehicle-mounted low-voltage power supply of 5-; 6-internal battery.
Embodiment
Below in conjunction with Figure of description, the invention will be further described:
The vehicle-mounted low-voltage power supply of a kind of pure electric automobile, vehicle-mounted low-voltage power supply is provided with high voltage input terminal and low-voltage output, vehicle-mounted low-voltage power supply 5 by DC-DC module 1, middle control module 2, mend circuit 3, control output circuit 4 and internal battery 6 and form, DC-DC module 1 with benefit circuit 3, control output circuit 4 and be connected, middle control module 2 with DC-DC module 1, mend circuit 3, control output circuit 4 and be connected with internal battery 6, internal battery 6 is connected with benefit circuit 3; The input of DC-DC module 1 and the high voltage input terminal of vehicle-mounted low-voltage power supply, control the output of output circuit 4 and the low-voltage output of vehicle-mounted low-voltage power supply, internal battery is that the low-voltage load of middle control module and pure electric automobile is powered, and low-voltage output is also for low-voltage load is powered.
The control method of the vehicle-mounted low-voltage power supply of the present invention is as follows:
Middle control module detects the voltage status of internal battery in real time, when central control module detects that internal battery is in low-voltage state, middle control module detects high voltage input terminal and whether connects high voltage source, as access failure high voltage source detected, then when internal battery voltage reduces further, middle control module cutting-off controlling output circuit, makes low-voltage output be in off state, guarantees that internal battery is unlikely to power shortage; As detected, high voltage input terminal connects high voltage source, then, control module controls DC-DC module carries out voltage transitions, and powered directly to low-voltage load by low-voltage output, control module controls simultaneously and mend electric circuit working to internal battery benefit electricity, after internal battery voltage is increased to rated voltage, middle control module controls is mended circuit and is quit work, no longer to built-in charge in batteries, middle control module enters resting state simultaneously, until middle control module detects that internal battery is waken up when being in low-voltage state again.
When high voltage input terminal connects high voltage source, DC-DC module can directly be powered to low-voltage load by controlling output circuit, as internal battery short of electricity, then can charge by mending circuit, internal battery charging is complete, mends circuit and disconnects, and now because DC-DC module is directly being passed through to control output circuit supplying power for outside, internal battery is not powered substantially, only have when high voltage input terminal access failure high voltage source, internal battery just can be powered to low-voltage load by controlling output circuit.
Internal battery is connected with DC-DC module by mending circuit by the present invention, directly can charge to internal battery when DC-DC module is powered to low-voltage load, then directly when high voltage input terminal does not connect high voltage source by internal battery, low-voltage load to be powered, only just stop when internal battery brownout powering to low-voltage load, and realize the charging to internal battery when next time connects high voltage source; Instant invention overcomes the problem that existing structure causes car load electric system complexity, Full Vehicle System is arranged, and difficulty reduces and enhances system reliability, can effectively save space.
Claims (3)
1. the vehicle-mounted low-voltage power supply of pure electric automobile, it is characterized in that: vehicle-mounted low-voltage power supply is provided with high voltage input terminal and low-voltage output, vehicle-mounted low-voltage power supply by DC-DC module, middle control module, mend circuit, control output circuit and internal battery and form, DC-DC module with benefit circuit, control output circuit and be connected, middle control module with DC-DC module, mend circuit, control output circuit and be connected with internal battery, internal battery is connected with the electric circuit of benefit; The input of DC-DC module and the high voltage input terminal of vehicle-mounted low-voltage power supply, control the output of output circuit and the low-voltage output of vehicle-mounted low-voltage power supply.
2. the vehicle-mounted low-voltage power supply of a kind of pure electric automobile according to claim 1, is characterized in that described internal battery is that the low-voltage load of middle control module and pure electric automobile is powered.
3. the vehicle-mounted low-voltage power supply of a kind of pure electric automobile according to claim 1, is characterized in that the control method of described vehicle-mounted low-voltage power supply is as follows:
Middle control module detects the voltage status of internal battery in real time, when central control module detects that internal battery is in low-voltage state, middle control module detects high voltage input terminal and whether connects high voltage source, as access failure high voltage source detected, then when internal battery voltage reduces further, middle control module cutting-off controlling output circuit, makes low-voltage output be in off state, guarantees that internal battery is unlikely to power shortage; As detected, high voltage input terminal connects high voltage source, then, control module controls DC-DC module carries out voltage transitions, and powered directly to low-voltage load by low-voltage output, control module controls simultaneously and mend electric circuit working to internal battery benefit electricity, after internal battery voltage is increased to rated voltage, middle control module controls is mended circuit and is quit work, no longer to built-in charge in batteries, middle control module enters resting state simultaneously, until middle control module detects that internal battery is waken up when being in low-voltage state again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410813207.0A CN104578270A (en) | 2014-12-24 | 2014-12-24 | Vehicle-mounted low-voltage power supply device for battery electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410813207.0A CN104578270A (en) | 2014-12-24 | 2014-12-24 | Vehicle-mounted low-voltage power supply device for battery electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104578270A true CN104578270A (en) | 2015-04-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410813207.0A Pending CN104578270A (en) | 2014-12-24 | 2014-12-24 | Vehicle-mounted low-voltage power supply device for battery electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104578270A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110239464A (en) * | 2019-06-18 | 2019-09-17 | 中国煤炭科工集团太原研究院有限公司 | A kind of underground coal mine explosion-proof vehicle explosion isolation type low-voltage standby power supply device |
| CN110509874A (en) * | 2019-09-30 | 2019-11-29 | 北京车和家信息技术有限公司 | Management method, direct current transducer and the power battery of electric car power consumption |
| CN111717146A (en) * | 2020-06-04 | 2020-09-29 | 奇瑞商用车（安徽）有限公司 | Power supply control circuit and method for electric automobile without low-voltage storage battery |
| CN112061056A (en) * | 2020-09-02 | 2020-12-11 | 湖北衡拓新能源科技有限公司 | Processing circuit and method for reducing quiescent current of whole vehicle |
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| JP3832732B2 (en) * | 2000-02-07 | 2006-10-11 | 富士通株式会社 | Power supply device for charger and portable terminal |
| CN1996705A (en) * | 2006-12-21 | 2007-07-11 | 奇瑞汽车有限公司 | DC-DC conversion control system and control method of the mixed driven car |
| CN102651562A (en) * | 2011-02-25 | 2012-08-29 | 比亚迪股份有限公司 | Direct current power supply system of electric vehicle |
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2014
- 2014-12-24 CN CN201410813207.0A patent/CN104578270A/en active Pending
Patent Citations (3)
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| JP3832732B2 (en) * | 2000-02-07 | 2006-10-11 | 富士通株式会社 | Power supply device for charger and portable terminal |
| CN1996705A (en) * | 2006-12-21 | 2007-07-11 | 奇瑞汽车有限公司 | DC-DC conversion control system and control method of the mixed driven car |
| CN102651562A (en) * | 2011-02-25 | 2012-08-29 | 比亚迪股份有限公司 | Direct current power supply system of electric vehicle |
Non-Patent Citations (1)
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| 杨朔: "基于CAN总线的电动汽车电池智能管理系统的研究", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110239464A (en) * | 2019-06-18 | 2019-09-17 | 中国煤炭科工集团太原研究院有限公司 | A kind of underground coal mine explosion-proof vehicle explosion isolation type low-voltage standby power supply device |
| CN110239464B (en) * | 2019-06-18 | 2022-10-21 | 中国煤炭科工集团太原研究院有限公司 | Explosion-proof type low-voltage standby power supply device for coal mine underground explosion-proof vehicle |
| CN110509874A (en) * | 2019-09-30 | 2019-11-29 | 北京车和家信息技术有限公司 | Management method, direct current transducer and the power battery of electric car power consumption |
| CN111717146A (en) * | 2020-06-04 | 2020-09-29 | 奇瑞商用车（安徽）有限公司 | Power supply control circuit and method for electric automobile without low-voltage storage battery |
| CN112061056A (en) * | 2020-09-02 | 2020-12-11 | 湖北衡拓新能源科技有限公司 | Processing circuit and method for reducing quiescent current of whole vehicle |
| CN112061056B (en) * | 2020-09-02 | 2024-01-09 | 湖北衡拓新能源科技有限公司 | Processing method for reducing quiescent current of whole vehicle |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20150429 |