CN206432772U - A kind of electric vehicle low tension battery power shortage activation system - Google Patents
A kind of electric vehicle low tension battery power shortage activation system Download PDFInfo
- Publication number
- CN206432772U CN206432772U CN201621159673.2U CN201621159673U CN206432772U CN 206432772 U CN206432772 U CN 206432772U CN 201621159673 U CN201621159673 U CN 201621159673U CN 206432772 U CN206432772 U CN 206432772U
- Authority
- CN
- China
- Prior art keywords
- low tension
- tension battery
- converter circuit
- relay
- entire car
- 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
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Abstract
The utility model is related to electric automobile power supply technique field, discloses a kind of electric vehicle low tension battery power shortage activation system.Including entire car controller and low tension battery, also include power battery pack, relay, high-voltage switch gear and DC/DC converter circuit, the power battery pack connects the input of DC/DC converter circuit by relay, the relay passes through high-voltage wiring harness high-voltage switch gear in parallel, the output end of the DC/DC converter circuit is connected with entire car controller, and the low tension battery, entire car controller and relay are sequentially connected.The high voltage supply of DC/DC converter circuit is controlled by increasing the high-voltage wiring harness of a band high-voltage switch gear, low-tension supply is provided for entire car controller, vehicle launch is convenient and swift when making low tension battery power shortage.
Description
Technical field
The utility model is related to electric automobile power supply technique field, and particularly a kind of electric vehicle low tension battery power shortage is opened
Dynamic system.
Background technology
Existing New energy electric vehicle has high-pressure system and low-pressure system, and low-pressure system is that vehicle low-voltage equipment is powered.
Worked long hours and uncharged when self discharge, electrical equipment occurs in low tension battery, or low tension battery meeting situations such as damage
Cause low tension battery power shortage.Now low tension battery can not drive the executing agencies such as relay to work, and power shortage is too serious, voltage
Less than controller low-voltage power supply scope, controller can not work, and these all can cause vehicle not start.
At present, solve low tension battery power shortage cause the problem of vehicle can not start, it is necessary to from outside look for one it is same therewith
The low tension battery or vehicle of voltage platform, by way of two cell parallels（Da electricity）Charged simultaneously for the battery of power shortage
Start vehicle.Look for the low tension battery of same voltage platform time-consuming, inconvenient, it is necessary to using the outside work such as storage battery Da electric wires from outside
Tool, and the complex operation step of storage battery Da electricity.
Utility model content
Goal of the invention of the present utility model is：Stored for above-mentioned problem there is provided a kind of electric vehicle low pressure
Battery power shortage activation system.
The technical solution adopted in the utility model is such：A kind of electric vehicle low tension battery power shortage activation system,
Including entire car controller and low tension battery, in addition to power battery pack, relay, high-voltage switch gear and DC/DC converter circuit, institute
State the input that power battery pack connects DC/DC converter circuit by relay, the relay passes through high-voltage wiring harness height in parallel
Compress switch, the output end of the DC/DC converter circuit is connected with entire car controller, the low tension battery, entire car controller and after
Electrical equipment is sequentially connected.
Further, in above-mentioned electric vehicle low tension battery power shortage activation system, the low tension battery also with DCDC
The output end connection of change-over circuit.
Further, the low tension battery is 12V or 24V.
In summary, by adopting the above-described technical solution, the beneficial effects of the utility model are：Increase by a band high pressure
The high-voltage wiring harness of switch controls the high voltage supply of DC/DC converter circuit, provides low-tension supply for vehicle, makes low tension battery power shortage
When vehicle launch it is convenient and swift；Meanwhile, low tension battery power shortage can be handled without external equipment, even if not using tradition side
The personnel of method processing low tension battery power shortage experience can also operate.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
As shown in figure 1, a kind of electric vehicle low tension battery power shortage activation system, including entire car controller 4 and low pressure store
Battery 5, in addition to power battery pack 1, relay K3, high-voltage switch gear 2 and DC/DC converter circuit 3, the power battery pack 1 pass through
The input of relay K3 connections DC/DC converter circuit 3, the relay K3 passes through high-voltage wiring harness in parallel high-voltage switch gear 2, institute
The output end for stating DC/DC converter circuit 3 is connected with entire car controller VCU4, the low tension battery 5, entire car controller VCU4 and
Relay K3 is sequentially connected.DC/DC converter circuit, which connects high-tension electricity, just with normal work and can realize output.
In above-mentioned electric vehicle low tension battery power shortage activation system, the low tension battery 5 also with DC/DC converter circuit 3
Output end connection, provide charge power supply for low tension battery.The low tension battery 5 is 12V or 24V.
Entire car controller VCU4 and relay K3 work is required for low-voltage power supply, but when 5 power shortage of low tension battery, it is whole
Vehicle controller VCU4 can not normal work, while cannot drive relay K3 work, cause vehicle be able to not can not start.This reality
The high voltage supply of DC/DC converter circuit 3 is controlled with the high-voltage wiring harness of the new band high-voltage switch gear 2 of increase by one.Low tension battery 5
When power shortage can not provide low tension, manual unlocking high-voltage switch gear 2, power battery pack 1 is by the access DCDC conversion electricity of high-voltage switch gear 2
The input on road 3 there is provided high-tension electricity through DC/DC converter circuit 3 export low tension, low tension is supplied to entire car controller VCU4
Realize the startup of vehicle.Meanwhile, the low tension that DC/DC converter circuit 3 is exported can also charge to low tension battery 5 simultaneously, when low
Press after the full charge of battery 5, normal work can be recovered with manual-lock high-voltage switch gear 2, the low tension battery 2.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modifications, equivalent substitutions and improvements made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (3)
1. a kind of electric vehicle low tension battery power shortage activation system, including entire car controller and low tension battery, its feature exist
In：Also include power battery pack, relay, high-voltage switch gear and DC/DC converter circuit, the power battery pack is connected by relay
Connect the input of DC/DC converter circuit, the relay passes through high-voltage wiring harness in parallel high-voltage switch gear, the DC/DC converter circuit
Output end be connected with entire car controller, the low tension battery, entire car controller and relay are sequentially connected.
2. electric vehicle low tension battery power shortage activation system as claimed in claim 1, it is characterised in that：The low pressure electric power storage
Pond is also connected with the output end of DC/DC converter circuit.
3. electric vehicle low tension battery power shortage activation system as claimed in claim 2, it is characterised in that：The low pressure electric power storage
Pond is 12V or 24V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621159673.2U CN206432772U (en) | 2016-11-01 | 2016-11-01 | A kind of electric vehicle low tension battery power shortage activation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621159673.2U CN206432772U (en) | 2016-11-01 | 2016-11-01 | A kind of electric vehicle low tension battery power shortage activation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206432772U true CN206432772U (en) | 2017-08-22 |
Family
ID=59588928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621159673.2U Expired - Fee Related CN206432772U (en) | 2016-11-01 | 2016-11-01 | A kind of electric vehicle low tension battery power shortage activation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206432772U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107571752A (en) * | 2017-09-04 | 2018-01-12 | 东风柳州汽车有限公司 | Fast charge stake accessory power supply charging method |
| CN107901775A (en) * | 2017-10-31 | 2018-04-13 | 东风柳州汽车有限公司 | Start method after electric automobile low tension battery power shortage |
| CN111216556A (en) * | 2020-02-20 | 2020-06-02 | 新石器慧通（北京）科技有限公司 | Low-voltage power storage unit charging control method and system and unmanned vehicle |
| WO2020207444A1 (en) * | 2019-04-09 | 2020-10-15 | Byton Limited | Vehicle isolation switch for low voltage power supplies |
| CN113212167A (en) * | 2020-01-21 | 2021-08-06 | 上海汽车集团股份有限公司 | Relay closing auxiliary system and method |
| CN113715622A (en) * | 2020-05-26 | 2021-11-30 | 北京新能源汽车股份有限公司 | Electric vehicle discharge control method, vehicle control unit and electric vehicle |
-
2016
- 2016-11-01 CN CN201621159673.2U patent/CN206432772U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107571752A (en) * | 2017-09-04 | 2018-01-12 | 东风柳州汽车有限公司 | Fast charge stake accessory power supply charging method |
| CN107901775A (en) * | 2017-10-31 | 2018-04-13 | 东风柳州汽车有限公司 | Start method after electric automobile low tension battery power shortage |
| WO2020207444A1 (en) * | 2019-04-09 | 2020-10-15 | Byton Limited | Vehicle isolation switch for low voltage power supplies |
| CN113212167A (en) * | 2020-01-21 | 2021-08-06 | 上海汽车集团股份有限公司 | Relay closing auxiliary system and method |
| CN113212167B (en) * | 2020-01-21 | 2023-02-28 | 上海汽车集团股份有限公司 | Relay closing auxiliary system and method |
| CN111216556A (en) * | 2020-02-20 | 2020-06-02 | 新石器慧通（北京）科技有限公司 | Low-voltage power storage unit charging control method and system and unmanned vehicle |
| CN113715622A (en) * | 2020-05-26 | 2021-11-30 | 北京新能源汽车股份有限公司 | Electric vehicle discharge control method, vehicle control unit and electric vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170822 Termination date: 20211101 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |