CN104709104B - Method and system for rapidly switching battery packs of electric vehicle - Google Patents
Method and system for rapidly switching battery packs of electric vehicle Download PDFInfo
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- CN104709104B CN104709104B CN201510067192.2A CN201510067192A CN104709104B CN 104709104 B CN104709104 B CN 104709104B CN 201510067192 A CN201510067192 A CN 201510067192A CN 104709104 B CN104709104 B CN 104709104B
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- battery bag
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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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- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The invention provides a method and system for rapidly switching battery packs of an electric vehicle. The method comprises the steps that the first battery pack and the second batter pack which can be independently used as a power source are arranged on the electric vehicle, the output end of the first battery pack and the output end of the second battery pack are connected in parallel, and when the SOC of the first battery pack supplying power currently is smaller than a preset threshold value, the second battery pack supplies power through switching. By the adoption of the method and system for rapidly switching the battery packs of the electric vehicle, the problem that in the prior art, the mileage of the electric vehicle is short is effectively solved.
Description
Technical field
The present invention relates to electric vehicle devices field, the more particularly to quick change method of battery of electric vehicle bag and quick-change system.
Background technology
In prior art, electric motor car mainly installs an electrokinetic cell on chassis, as chassis electrokinetic cell soc (state
The abbreviation of of charge, refers to the ratio of charging capacity and rated capacity, is expressed as a percentage) too low when cannot work, then cannot
Normal work, leads to the distance travelled of electric motor car short.
In addition, it is desirable to be charged for a long time to the electrokinetic cell of electric motor car, waste the plenty of time.
Content of the invention
The invention aims to providing a kind of quick change side of the short battery of electric vehicle bag of distance travelled of solution electric motor car
Method and quick-change system.
To achieve these goals, according to an aspect of the invention, it is provided a kind of quick change side of battery of electric vehicle bag
Method, comprising: configuration being capable of independently the first battery bag as electrical source of power and the second battery bag in electric motor car；Described
The outfan of the outfan of one battery bag and described second battery bag is connected in parallel；Soc in the first battery bag of current power supply
During less than predetermined threshold, it is switched to described second battery bag and is powered.
Further, described first battery bag and described second battery bag all include multiple modules that can individually dismantle,
Each described module individually can be charged under family's power utilization environment.
Further, the outlet internal line of described first battery bag is provided with the first main positive relay, described the
One master positive relay parallel connection the first diode；Second main positive relay is provided with the outlet internal line of described second battery bag
Device, described second main positive relay parallel connection the second diode；When described first battery bag is powered, described first master just continues
Electrical equipment closes, and the described second main positive relay disconnects.
Further, under conditions of described electric motor car is in transport condition, described it be switched to described second battery bag and enter
The step of row power supply includes: the described first main positive relay disconnects, and described first battery bag is passed through outside described first diode pair
Power supply；Described second main positive relay closure, described second battery bag passes through the described second main positive relay supplying power for outside；Institute
State the second battery bag voltage be more than described first battery bag voltage under conditions of, one-way conduction described first diode break
Open.
Further, after the step that described first diode of one-way conduction disconnects, also include: by gateway control
Device makes the low-pressure system of described first battery bag enter park mode.
Further, under conditions of described electric motor car is in dead ship condition, described it be switched to described second battery bag and enter
The step of row power supply includes: enters park mode by the low-pressure system that gateway controller makes described first battery bag, in institute
State the first battery bag described in the low-pressure system starting described second battery bag in electric motor car restarting procedure and No starting
Low-pressure system, thus only being powered by described second battery bag.
According to another aspect of the present invention, there is provided a kind of quick-change system of battery of electric vehicle bag, comprising: can distinguish
Independent the first battery bag as electrical source of power and the second battery bag, configure in electric motor car, the output of described first battery bag
The outfan of end and described second battery bag is connected in parallel；Switch unit, is used for: in the soc of the first battery bag of current power supply
During less than predetermined threshold, it is switched to described second battery bag and is powered.
Further, described first battery bag and described second battery bag all include multiple modules that can individually dismantle,
Each described module individually can be charged under family's power utilization environment.
Further, the outlet internal line of described first battery bag is provided with the first main positive relay, described the
One master positive relay parallel connection the first diode；Second main positive relay is provided with the outlet internal line of described second battery bag
Device, described second main positive relay parallel connection the second diode；When described first battery bag is powered, described first master just continues
Electrical equipment closes, and the described second main positive relay disconnects.
Further, under conditions of described electric motor car is in transport condition, described switch unit specifically for: make described
The positive relay of first master disconnects, and described first battery bag passes through described first diode supplying power for outside；Described second master is made just to continue
Electrical equipment closes, and described second battery bag passes through the described second main positive relay supplying power for outside；Voltage in described second battery bag
Under conditions of voltage more than described first battery bag, described first diode of one-way conduction disconnects；At described electric motor car
Under conditions of dead ship condition, described switch unit specifically for: the low of described first battery bag is made by gateway controller
Pressure system enter park mode, start in described electric motor car restarting procedure described second battery bag low-pressure system and
The low-pressure system of the first battery bag described in No starting, thus only powered by described second battery bag.
Configure two electrical source of power in electric motor car, and two electrical source of power are parallel connection, when electrical source of power (first battery
Bag is generally preferential electrical source of power) electricity too low when, (the second battery bag is generally standby dynamic to be switched to another one electrical source of power
Power power supply) work, so can effectively increase the continual mileage of electric motor car.
According to the detailed description to the specific embodiment of the invention below in conjunction with accompanying drawing, those skilled in the art will be brighter
The above-mentioned and other purposes of the present invention, advantages and features.
Brief description
Describe some specific embodiments of the present invention hereinafter with reference to the accompanying drawings by way of example, and not by way of limitation in detail.
In accompanying drawing, identical reference denotes same or similar part or part.It should be appreciated by those skilled in the art that these
Accompanying drawing is not necessarily drawn to scale.In accompanying drawing:
Fig. 1 is the schematic diagram of the quick change method of battery of electric vehicle bag according to an embodiment of the invention；
Fig. 2 is the schematic diagram of step s30 of the quick change method of battery of electric vehicle bag shown in Fig. 1；
Fig. 3 is the schematic diagram of the quick-change system of battery of electric vehicle bag according to an embodiment of the invention；
Fig. 4 is the topological diagram of the first battery bag of the quick-change system of battery of electric vehicle bag shown in Fig. 3；
Fig. 5 is the topological diagram of the second battery bag of the quick-change system of battery of electric vehicle bag shown in Fig. 3；
Fig. 6 is the structural representation of the first battery bag of the quick-change system of battery of electric vehicle bag shown in Fig. 3.
Specific embodiment
Fig. 1 is the schematic diagram of the quick change method of battery of electric vehicle bag according to an embodiment of the invention.The present embodiment
The quick change method of battery of electric vehicle bag, comprises the following steps:
S10: configuration being capable of independently the first battery bag as electrical source of power and the second battery bag in electric motor car；The
The outfan of the outfan of one battery bag and the second battery bag is connected in parallel.
S20: judge whether the soc of the first battery bag of current power supply is less than predetermined threshold.
S30: when the soc of the first battery bag of current power supply is less than predetermined threshold, is switched to the second battery bag and is supplied
Electricity.If the soc of the first battery bag of current power supply is more than predetermined threshold, continue executing with step s30.
Wherein, soc is the abbreviation of state of charge, refers to the ratio of charging capacity and rated capacity, uses percentage ratio table
Show.Battery has rated capacity, charges the regular hour, can obtain charging capacity under certain multiplying power, charging capacity with specified
The ratio of capacity is soc.Predetermined threshold can be set according to the minimum output electricity of battery bag or according to avoiding electricity
Pond bag electricity is used up damage battery and is set, and generally, predetermined threshold is set as between 5%-8%.
Configure two electrical source of power in electric motor car, and two electrical source of power are parallel connection, when electrical source of power (first battery
Bag is generally preferential electrical source of power) electricity too low when, (the second battery bag is generally standby dynamic to be switched to another one electrical source of power
Power power supply) work, so can effectively increase the continual mileage of electric motor car.
Quick-replaceable in view of battery bag and charging, the quick change method of the present embodiment also includes: the first battery bag and
Two battery bags all include multiple modules that can individually dismantle, and each module individually can be filled under family's power utilization environment
Electricity.
By n (n >=1, and be integer) module composition, module and Battery case in first battery bag and the second battery bag
Connected by quick connector, facilitate module quick-replaceable, each module weight ensures that adult normally moves and changes.Each
Module can individually be charged at home, convenient and swift safety.
The quick change method of the present embodiment also includes: is provided with the first master on the outlet internal line of the first battery bag and just continues
Electrical equipment, the first master positive relay parallel connection the first diode.Second master is provided with the outlet internal line of the second battery bag just
Relay, the second master positive relay parallel connection the second diode.When the first battery bag is powered, the first main positive relay closes
Close, the positive relay of the second master disconnects.First diode and the second diode are the diode that low pressure drop exceeds current mode, mainly
It act as reverse counnter attack and forward conduction effect.
The present embodiment, it is further preferred that the step that switching battery bag is powered is optimized, referring to Fig. 2, is switching
It is necessary first to detection electric motor car is in transport condition or dead ship condition in the step process that battery bag is powered.Wherein, electronic
Under conditions of car is in transport condition, it is switched to the step that the second battery bag is powered and includes:
The positive relay of s41: the first master disconnects, and the first battery bag passes through the first diode supplying power for outside；
S42: the second master positive relay closure, the second battery bag is by the second main positive relay supplying power for outside；In the second electricity
Under conditions of the voltage of Chi Bao is more than the voltage of the first battery bag, the first diode of one-way conduction disconnects.
S43: park mode is entered by the low-pressure system that gateway controller makes the first battery bag.
And when electric motor car is under conditions of dead ship condition, is switched to the step that the second battery bag is powered and includes:
S51: park mode is entered by the low-pressure system that gateway controller makes the first battery bag, again opens in electric motor car
Start the low-pressure system of the second battery bag and the low-pressure system of No starting first battery bag, thus only passing through the during dynamic
Two battery bags are powered.
Present invention also offers a kind of embodiment of the quick-change system of battery of electric vehicle bag, referring specifically to Fig. 3, quick-change system
Including the first battery bag 10, the second battery bag 20 and switch unit, the first battery bag 10 and the second battery bag 20 can be distinguished solely
Stand as electrical source of power, and configure in electric motor car, the outfan of the outfan of the first battery bag 10 and the second battery bag 20 is simultaneously
Connection connects.Switch unit is configured to: when the soc of the first battery bag 10 of current power supply is less than predetermined threshold, is switched to the
Two battery bags 20 are powered.Predetermined threshold can be set according to the minimum output electricity of battery bag or according to avoiding electricity
Pond bag electricity is used up damage battery and is set, and generally, predetermined threshold is set as between 5%-8%.
Configure two electrical source of power in electric motor car, and two electrical source of power are parallel connection, when electrical source of power (first battery
Bag is generally preferential electrical source of power) electricity too low when, (the second battery bag is generally standby dynamic to be switched to another one electrical source of power
Power power supply) work, so can effectively increase the continual mileage of electric motor car.
Quick-replaceable in view of battery bag and charging, the first battery bag 10 and the second battery bag 20 all include multiple can
The individually module 30 of dismounting, each module 30 individually can be charged under family's power utilization environment.Shown in Figure 6 first
The structural representation of battery bag 10, because the second battery bag is identical with module 30 structure of the inside of the first battery bag, so simultaneously
The not shown structure with regard to the second battery bag, but may refer to shown in Fig. 6.
Formed by n (n >=1, and be integer) module 30 in first battery bag 10 and the second battery bag 20, module 30 with
Battery case is connected by quick connector, facilitates module quick-replaceable, and the weight of each module 30 ensures that adult normally removes
Move and change.Each module 30 can individually be charged at home, convenient and swift safety.
Referring to Fig. 4, the outlet internal line of the first battery bag 10 is provided with the first main positive relay 11, the first master is just
Relay 11 first diode 12 in parallel.Referring to Fig. 5, the outlet internal line of the second battery bag 20 is being provided with the second master just
Relay 21, the second main positive relay 21 second diode 22 in parallel.In normal driving process, generally use the first battery bag
10 are powered, and when the first battery bag 10 is powered, the first main positive relay 11 closes, and the second main positive relay 21 breaks
Open.
Switch unit in the present embodiment, for being controlled to electric motor car, but needs also exist for considering the row of electric motor car
Car state.Therefore, under conditions of electric motor car is in transport condition, switch unit is specifically configured to: makes the first main positive relay
Device 11 disconnects, and the first battery bag 10 passes through the first diode 12 supplying power for outside；The second main positive relay 21 is made to close, the second battery
Bag 20 is by the second main positive relay 21 supplying power for outside；It is more than the voltage of the first battery bag 10 in the voltage of the second battery bag 20
Under the conditions of, the first diode 12 of one-way conduction disconnects.
And under conditions of electric motor car is in dead ship condition, switch unit is specifically configured to: made by gateway controller
The low-pressure system obtaining the first battery bag 10 enters park mode, starts the second battery bag 20 in electric motor car restarting procedure
Low-pressure system and the low-pressure system of No starting the first battery bag 10, thus only powered by the second battery bag 20.
Run switching: when the first battery bag 10 job demand is switched to the second battery bag 20, first control the first battery bag
The main positive relay 11 of the first of 10 disconnects, and turns on supplying power for outside now by the first diode 12, next step closes the second battery
The main positive relay 21 of the second of bag 20, now two battery bag supplying power for outsides simultaneously, but because the voltage of the second battery bag 20 is high
In the first battery bag 10, the first diode 12 reversely ends it is impossible to output voltage, and voltage jump and two batteries also will not occur
Produce electric potential difference between bag, and park mode is entered by the low-pressure system that gateway controller makes the first battery bag 10, smoothly complete
Switching.
Stop and switch: when the soc of the first battery bag 10 is too low, after parking, the first battery bag 10 is made by gateway controller
Low-pressure system enter park mode, only start the electrical system of the second battery bag 20 when restarting, complete switch.
N (n >=1, and be integer) battery system collection plate lecu and a battery system master is comprised in each battery bag
Control plate bmu.Wherein collection plate mainly gathers each monomer battery voltage and temperature；Battery system master control borad is main and battery system
Peripheral cell communicates.
Battery system master control borad controls the internal relay on or off of battery bag by signal, monitoring simultaneously always just,
Voltage between always bearing.Battery system master control borad constantly gathers the size of current of current sensor detection, as the master calculating soc
Will according to one of.Battery system master control borad detects the turn-on and turn-off state of relay, as security monitoring condition.Battery system
Master control borad output control signal, controls the fan even load work in battery bag.
So far, although those skilled in the art will appreciate that detailed herein illustrate and describe the multiple of the present invention and show
Example property embodiment, but, without departing from the spirit and scope of the present invention, still can be direct according to present disclosure
Determine or derive other variations or modifications of many meeting the principle of the invention.Therefore, the scope of the present invention is it is understood that and recognize
It is set to and cover other variations or modifications all these.
Claims (7)
1. a kind of quick change method of battery of electric vehicle bag is it is characterised in that include:
In electric motor car, configuration being capable of independently the first battery bag as electrical source of power and the second battery bag；
The outfan of the outfan of described first battery bag and described second battery bag is connected in parallel；
When the charging capacity of the first battery bag of current power supply is less than predetermined threshold with the ratio of rated capacity, it is switched to described
Second battery bag is powered；
Wherein, the outlet internal line of described first battery bag is provided with the first main positive relay, described first master just continues
Electrical equipment parallel connection the first diode；Second main positive relay is provided with the outlet internal line of described second battery bag, described
Second master positive relay parallel connection the second diode；When described first battery bag is powered, the described first main positive relay closes
Close, the described second main positive relay disconnects；
Wherein, under conditions of described electric motor car is in transport condition, described it is switched to what described second battery bag was powered
Step includes: the described first main positive relay disconnects, and described first battery bag passes through described first diode supplying power for outside；Described
Second master positive relay closure, described second battery bag passes through the described second main positive relay supplying power for outside；In the described second electricity
Under conditions of the voltage of Chi Bao is more than the voltage of described first battery bag, described first diode of one-way conduction disconnects.
2. quick change method according to claim 1 it is characterised in that
Described first battery bag and described second battery bag all include multiple modules that can individually dismantle, each described module energy
Enough individually charged under family's power utilization environment.
3. quick change method according to claim 1 it is characterised in that one-way conduction described first diode disconnect
After step, also include: park mode is entered by the low-pressure system that gateway controller makes described first battery bag.
4. quick change method according to claim 1 it is characterised in that be in the condition of dead ship condition in described electric motor car
Under, described it is switched to the step that described second battery bag is powered and includes:
Park mode is entered by the low-pressure system that gateway controller makes described first battery bag, again opens in described electric motor car
Start the low-pressure system of described second battery bag and the low-pressure system of the first battery bag described in No starting during dynamic, thus
Only powered by described second battery bag.
5. a kind of quick-change system of battery of electric vehicle bag is it is characterised in that include:
Can independently the first battery bag as electrical source of power and the second battery bag, configuration in electric motor car, described first
The outfan of the outfan of battery bag and described second battery bag is connected in parallel；
Switch unit, is used for: is less than predetermined threshold in the charging capacity of the first battery bag and the ratio of rated capacity of current power supply
During value, it is switched to described second battery bag and is powered；
Wherein, the outlet internal line of described first battery bag is provided with the first main positive relay, described first master just continues
Electrical equipment parallel connection the first diode；Second main positive relay is provided with the outlet internal line of described second battery bag, described
Second master positive relay parallel connection the second diode；When described first battery bag is powered, the described first main positive relay closes
Close, the described second main positive relay disconnects；
Wherein, under conditions of described electric motor car is in transport condition, described switch unit specifically for: make described first main just
Relay disconnects, and described first battery bag passes through described first diode supplying power for outside；Make the positive relay closure of described second master,
Described second battery bag passes through the described second main positive relay supplying power for outside；It is more than described the in the voltage of described second battery bag
Under conditions of the voltage of one battery bag, described first diode of one-way conduction disconnects.
6. quick-change system according to claim 5 it is characterised in that
Described first battery bag and described second battery bag all include multiple modules that can individually dismantle, each described module energy
Enough individually charged under family's power utilization environment.
7. quick-change system according to claim 5 it is characterised in that
Under conditions of described electric motor car is in dead ship condition, described switch unit specifically for: by gateway controller so that
The low-pressure system of described first battery bag enters park mode, starts described second electricity in described electric motor car restarting procedure
The low-pressure system of the first battery bag described in the low-pressure system of Chi Bao and No starting, thus only supplied by described second battery bag
Electricity.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611209199.4A CN106740206B (en) | 2015-02-09 | 2015-02-09 | Quick-changing method and system for battery pack of electric vehicle |
| CN201510067192.2A CN104709104B (en) | 2015-02-09 | 2015-02-09 | Method and system for rapidly switching battery packs of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510067192.2A CN104709104B (en) | 2015-02-09 | 2015-02-09 | Method and system for rapidly switching battery packs of electric vehicle |
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| CN201611209199.4A Division CN106740206B (en) | 2015-02-09 | 2015-02-09 | Quick-changing method and system for battery pack of electric vehicle |
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| CN104709104A CN104709104A (en) | 2015-06-17 |
| CN104709104B true CN104709104B (en) | 2017-02-01 |
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| CN201510067192.2A Active CN104709104B (en) | 2015-02-09 | 2015-02-09 | Method and system for rapidly switching battery packs of electric vehicle |
| CN201611209199.4A Active CN106740206B (en) | 2015-02-09 | 2015-02-09 | Quick-changing method and system for battery pack of electric vehicle |
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| CN201611209199.4A Active CN106740206B (en) | 2015-02-09 | 2015-02-09 | Quick-changing method and system for battery pack of electric vehicle |
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| CN106427936B (en) * | 2015-08-04 | 2020-04-24 | 岳秀兰 | Battery box replacing system formed by monitoring workstation, battery replacing station and electric automobile through Internet of things |
| CN106627188B (en) * | 2016-03-23 | 2022-07-08 | 上海火亮新能源科技有限公司 | Electric automobile increases journey system |
| CN107472045A (en) * | 2016-12-22 | 2017-12-15 | 宝沃汽车（中国）有限公司 | Battery bag and vehicle |
| CN107539151B (en) * | 2017-08-31 | 2021-01-29 | 西安特锐德智能充电科技有限公司 | Charging and battery-replacing integrated power battery system, working method and application |
| CN107444176B (en) * | 2017-08-31 | 2021-12-07 | 西安特锐德智能充电科技有限公司 | Charging and battery-replacing integrated power battery system, working method and application thereof |
| CN107599858B (en) * | 2017-08-31 | 2021-01-29 | 西安特锐德智能充电科技有限公司 | Power battery system integrating charging and battery replacing, working method and application |
| CN107521324A (en) * | 2017-09-15 | 2017-12-29 | 江西爱驰亿维实业有限公司 | Double source battery bag device and electric automobile |
| CN107539159B (en) * | 2017-09-18 | 2018-06-08 | 爱驰汽车有限公司 | Double source battery pack, management method and system and electric vehicle |
| CN109968961A (en) * | 2017-12-27 | 2019-07-05 | 奥动新能源汽车科技有限公司 | Electric car |
| CN108666638A (en) * | 2018-05-15 | 2018-10-16 | 东风裕隆汽车有限公司 | A kind of battery module and its Energy Management System and method |
| CN108749617B (en) * | 2018-06-11 | 2020-03-24 | 浙江衡远新能源科技有限公司 | Replaceable battery control system of electric automobile |
| CN110077235B (en) * | 2019-04-30 | 2021-01-12 | 东风汽车集团有限公司 | Static and dynamic switching system and method for expanding power supply |
| EP4043291B1 (en) * | 2020-12-16 | 2023-07-26 | Contemporary Amperex Technology Co., Limited | Power supply apparatus, battery management system, power supply system, control method and medium |
| CN113954691A (en) * | 2021-09-15 | 2022-01-21 | 阿里巴巴达摩院(杭州)科技有限公司 | Battery control method, device, computer equipment and computer readable storage medium |
| CN114844172A (en) * | 2022-06-02 | 2022-08-02 | 新石器慧通（北京）科技有限公司 | Battery switching system for unmanned vehicle |
| CN116278961A (en) * | 2023-03-10 | 2023-06-23 | 欣旺达电动汽车电池有限公司 | Method, device, equipment and medium for adjusting SOC of hybrid battery |
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- 2015-02-09 CN CN201510067192.2A patent/CN104709104B/en active Active
- 2015-02-09 CN CN201611209199.4A patent/CN106740206B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106740206A (en) | 2017-05-31 |
| CN104709104A (en) | 2015-06-17 |
| CN106740206B (en) | 2020-07-21 |
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