CN205417472U - The low voltage power supply system based on pure electric vehicles - Google Patents
The low voltage power supply system based on pure electric vehicles Download PDFInfo
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- CN205417472U CN205417472U CN201620291040.0U CN201620291040U CN205417472U CN 205417472 U CN205417472 U CN 205417472U CN 201620291040 U CN201620291040 U CN 201620291040U CN 205417472 U CN205417472 U CN 205417472U
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- low voltage
- dcdc
- supply device
- power supply
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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)
Abstract
The utility model discloses a the low voltage power supply system based on pure electric vehicles, including energy storage system, the vehicle control unit VCU, the DCDC that are connected with energy storage system respectively, vehicle control unit VCU output control signal I1 control DCDC's high -pressure contactor closure, energy storage system includes the low voltage power supply ware, power energy storage battery, and DCDC exports charging source I2 to the low voltage power supply ware, and time -delayed separation I4 and I5 behind the charging source I2 were received to the the low voltage power supply ware simultaneously, power energy storage battery output the high pressrue electricity I3 supplies with DCDC forming circuit and follows bad networking, the the low voltage power supply ware carries start power I4, I5 to give vehicle control unit VCU and power energy storage battery respectively. The utility model discloses a the low voltage power supply ware provides control current drive VCU and BMS to make DCDC work, for whole automobile -used electrical apparatus provides the low voltage power supply, can not receive influences with electrical apparatus voltage platform, the the low voltage power supply utensil has the interlocking of charging / export, can guarantee dry battery life, simultaneously, the dynamic theftproof function of this the low voltage power supply utensil.
Description
Technical field
This utility model belongs to pure electric automobile electroporation field, specifically, relates to a kind of low voltage electric power system with circulating aneroid battery as core.
Background technology
In pure electric automobile electric field, especially in commercial car system, low-tension supply is usually continued to use the lead-acid battery of traditional vehicle or exempts to tie up battery.Such conventional low source battery has capacitance and the low temperature instantaneous discharge stream of certain specification, so that it has bigger space structure and weight so that the too fat to move burden of this system；And generally using the system of 12V, 24V for commercial car, need differently configured low-tension supply, vehicle uniformity is low, parts poor universality.
In recent years, along with electronic science and technology develops rapidly, increasing electronic equipment is introduced into automotive field.As the core force in new-energy automobile, the development of pure electric automobile is as emerged rapidly in large numbersBamboo shoots after a spring rain, for pure electric automobile, disappearance because of starter, low pressure source is no longer necessary to bigger low temperature instantaneous discharge stream, and due to the existence of DCDC, low pressure source is also without bigger capacitance.On pure electric automobile, using the small and exquisite and constant pressure source of intelligence, the technology for association area has become as a kind of trend.
Utility model content
The purpose of this utility model is to provide a kind of low voltage electric power system based on pure electric automobile, solves existing low voltage electric power system space structure big with weight, and poor compatibility, the problem of parts poor universality.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of low voltage electric power system based on pure electric automobile, including energy-storage system, entire car controller VCU, the DCDC being connected with energy-storage system respectively, entire car controller VCU output control signal I1 controls the high voltage connector Guan Bi of DCDC；Described energy-storage system includes low-tension supply device, power energy-storage battery, and DCDC output charge power supply I2 is to low-tension supply device, and after low-tension supply device receives charge power supply I2 simultaneously, time delay disconnects I4 and I5；Power energy-storage battery output high-tension electricity I3 supply DCDC forms circuit and follows bad networking；Low-tension supply device carries startup power supply I4, I5 respectively to entire car controller VCU and power energy-storage battery.
Specifically, described low-tension supply device includes energy control unit NCU that begins, respectively with begin can control unit NCU is connected aneroid battery, power anti-theft device, energy control unit NCU of described beginning is provided with that the VCU being respectively used to be connected with entire car controller VCU, power energy-storage battery, DCDC wakes up port up, BMS wakes up port up, DCDC charging port.
Further, described low-tension supply device uses 5V drive of constant voltage source VCU and power energy-storage battery.Described power anti-theft device is automobile remote sensor.
Yet further, described power energy-storage battery includes that be connected and waken up up startup by low-tension supply device BMS mainboard with low-tension supply device, multiple BMS being connected with BMS mainboard by CAN, this BMS is also connected with low-tension supply device and is waken up up startup by low-tension supply device, and the current sensor S1 being connected with BMS mainboard after series connection, fusing insurance, multiple casings, MSD switchs, wherein, current sensor S1 and BMS mainboard is connected, node after the power port of described BMS is connected with low-tension supply device and BMS mainboard is connected to the input of car load low-tension supply, BMS mainboard is additionally coupled in full-vehicle control circuit, current transformer S1 is connected with car load high-pressure system positive pole, MSD switch is connected with car load high-pressure system negative pole.
The beneficial effects of the utility model are:
(1) this utility model uses circulating aneroid battery, and battery volume is little, light weight, and cryogenic property is more preferable, and price is relatively cheap, and fast demountable is changed, and self discharge amount is little.
(2) this utility model uses low-tension supply device to provide control electric current to drive VCU and BMS, so that DCDC work, there is provided low-tension supply for car load electrical appliance, therefore low-tension supply device can use 5V drive of constant voltage source VCU and BMS, will not be affected by electrical appliance voltage platform.
(3) low-tension supply utensil of the present utility model has charging/output interlocking, and after DCDC starts, aneroid battery will not export, it is ensured that aneroid battery service life；Meanwhile, this dynamic anti-theft feature of low-tension supply utensil, rely on key remote sensing signal to start aneroid battery output.
Accompanying drawing explanation
Fig. 1 is system block diagram of the present utility model.
Fig. 2 is the circuit theory diagrams of this utility model energy-storage system.
Fig. 3 is the system block diagram of this utility model low-tension supply device.
Detailed description of the invention
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.Embodiment of the present utility model includes but not limited to the following example.
Embodiment
As shown in Figure 1, a kind of low voltage electric power system based on pure electric automobile, including low-tension supply device, the entire car controller VCU that is connected with low-tension supply device respectively, power energy-storage battery, DCDC, DCDC is connected with entire car controller VCU, power energy-storage battery the most respectively, wherein, entire car controller VCU output control signal I1 controls the high voltage connector Guan Bi of DCDC；DCDC output charge power supply I2 is to low-tension supply device, and after low-tension supply device receives charge power supply I2 simultaneously, time delay disconnects I4 and I5；Power energy-storage battery output high-tension electricity I3 supply DCDC forms circuit and follows bad networking；The conveying of low-tension supply device starts power supply I4 to entire car controller VCU；Low-tension supply device also carries startup power supply I5 to power energy-storage battery.
In the present embodiment, low-tension supply device and power energy-storage battery composition energy-storage system, the circuit theory diagrams of energy-storage system are as shown in Figure 2.Wherein, power energy-storage battery includes BMS mainboard, and multiple BMS (battery management system) being connected with BMS mainboard by CAN are concrete, the B of BMS+、B-Port is respectively connected to the input of car load low-tension supply, B+Port is also coupled on BMS mainboard, B-Port is also coupled on low-tension supply device, the CAN3H port of BMS is connected with the CAN3L port of BMS mainboard, the CAN3L port of BMS is connected with the CAN3H port of BMS mainboard, the BMS of BMS mainboard wake up up port the most respectively with low-tension supply device wake up port up and BMS is connected, low-tension supply device is provided with one and wakes up port and one up for the DCDC charging port being connected with DCDC for the VCU being connected with entire car controller VCU.As shown in Figure 2, CAN2H, CAN2L, CAN2S, CAN1H, CAN1L port of BMS mainboard is all connected with full-vehicle control circuit, BMS mainboard has also been sequentially connected in series current sensor S1, fusing insurance, multiple casing, MSD switch, wherein, current sensor S1 and BMS mainboard is connected, current sensor S1 is connected with car load high-pressure system positive pole, and MSD switch is connected with car load high-pressure system negative pole, all includes the battery of multiple series connection in each casing.
After DCDC works, BMS wakes up port up and VCU wakes up port up and disconnects, and car load low-tension supply is connected；After car load power-off, BMS wakes up port connection up and VCU wakes up port up and connects, and starting for DCDC provides signal power source.
As shown in Figure 3, in the present embodiment, low-tension supply device includes energy control unit NCU that begins, respectively with begin can control unit NCU be connected aneroid battery, power anti-theft device, power anti-theft device is automobile remote sensor in the present embodiment, begin can control unit NCU be provided with one for the VCU being connected with entire car controller VCU wake up up port, one for the DCDC charging port being connected with DCDC, one wake up port up for the BMS that port is connected that wakes up up with BMS mainboard.
The work process of the present embodiment is:
Low-tension supply device provides for entire car controller VCU, BMS and starts power supply, entire car controller VCU, BMS work, BMS controls the work of power energy-storage battery, output high-tension current is to DCDC, entire car controller VCU controls DCDC work, DCDC output and the low tension matched of low-tension supply device platform, supply whole low-tension supply device；DCDC exports the low tension matched with aneroid battery low-voltage plateau simultaneously, complete the charging of aneroid battery, after energy control unit NCU that begins detects charging current, control low-tension supply device by chronotron to disconnect with entire car controller VCU, BMS, entire car controller VCU Yu BMS completes power supply switching, and whole low-tension supply starts activation and completes.
The wireless signal that automobile remote sensor detection automobile key sends, when key and automobile remote sensor reach in certain limit, begin to open by control unit NCU out-put supply, otherwise will not export, DCDC cannot be started, and car load is without electricity, because of the wireless signal that key is only, therefore be not easy to crack, reach anti-theft function to a certain extent.
According to above-described embodiment, this utility model just can be realized well.What deserves to be explained is; on the premise of above-mentioned design principle; for solving same technical problem; even if some made on architecture basics disclosed in the utility model are without substantial change or polishing; the essence of the technical scheme used is still as this utility model, therefore it should also be as in protection domain of the present utility model.
Claims (5)
1. a kind of low voltage electric power system based on pure electric automobile, it is characterised in that include energy-storage system, entire car controller VCU, the DCDC being connected with energy-storage system respectively, entire car controller VCU output control signal I1 controls the high voltage connector Guan Bi of DCDC；Described energy-storage system includes low-tension supply device, power energy-storage battery, and DCDC output charge power supply I2 is to low-tension supply device, and after low-tension supply device receives charge power supply I2 simultaneously, time delay disconnects I4 and I5；Power energy-storage battery output high-tension electricity I3 supply DCDC forms circuit and follows bad networking；I4 is the startup power supply that low-tension supply device flows to entire car controller VCU, and I5 is the startup power supply that low-tension supply device flows to power energy-storage battery.
A kind of low voltage electric power system based on pure electric automobile the most according to claim 1, it is characterized in that, described low-tension supply device includes energy control unit NCU that begins, respectively with begin can control unit NCU is connected aneroid battery, power anti-theft device, energy control unit NCU of described beginning is provided with that the VCU being respectively used to be connected with entire car controller VCU, power energy-storage battery, DCDC wakes up port up, BMS wakes up port up, DCDC charging port.
A kind of low voltage electric power system based on pure electric automobile the most according to claim 2, it is characterised in that described low-tension supply device uses 5V drive of constant voltage source entire car controller VCU and power energy-storage battery.
A kind of low voltage electric power system based on pure electric automobile the most according to claim 3, it is characterised in that described power anti-theft device is automobile remote sensor.
nullA kind of low voltage electric power system based on pure electric automobile the most according to claim 1，It is characterized in that，Described power energy-storage battery includes that be connected and waken up up startup by low-tension supply device BMS mainboard with low-tension supply device，Multiple BMS being connected with BMS mainboard by CAN，This BMS is also connected with low-tension supply device and is waken up up startup by low-tension supply device，And the current sensor S1 being connected with BMS mainboard after series connection、Fusing insurance、Multiple casings、MSD switchs，Wherein，Current sensor S1 and BMS mainboard is connected，Node after the power port of described BMS is connected with low-tension supply device and BMS mainboard is connected to the input of car load low-tension supply，BMS mainboard is additionally coupled in full-vehicle control circuit，Current transformer S1 is connected with car load high-pressure system positive pole，MSD switch is connected with car load high-pressure system negative pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620291040.0U CN205417472U (en) | 2016-04-08 | 2016-04-08 | The low voltage power supply system based on pure electric vehicles |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620291040.0U CN205417472U (en) | 2016-04-08 | 2016-04-08 | The low voltage power supply system based on pure electric vehicles |
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| CN205417472U true CN205417472U (en) | 2016-08-03 |
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| CN201620291040.0U Expired - Fee Related CN205417472U (en) | 2016-04-08 | 2016-04-08 | The low voltage power supply system based on pure electric vehicles |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020098798A1 (en) * | 2018-11-16 | 2020-05-22 | 宁德时代新能源科技股份有限公司 | Conversion circuit, battery equalization system, and battery management system |
| CN112937304A (en) * | 2021-03-09 | 2021-06-11 | 东风柳州汽车有限公司 | Electric motor car low-voltage storage battery insufficient voltage's starting system |
-
2016
- 2016-04-08 CN CN201620291040.0U patent/CN205417472U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020098798A1 (en) * | 2018-11-16 | 2020-05-22 | 宁德时代新能源科技股份有限公司 | Conversion circuit, battery equalization system, and battery management system |
| CN112937304A (en) * | 2021-03-09 | 2021-06-11 | 东风柳州汽车有限公司 | Electric motor car low-voltage storage battery insufficient voltage's starting system |
| CN112937304B (en) * | 2021-03-09 | 2022-09-13 | 东风柳州汽车有限公司 | Electric motor car low-voltage storage battery insufficient voltage's starting system |
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| 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: 20160803 Termination date: 20210408 |
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| CF01 | Termination of patent right due to non-payment of annual fee |