CN107627852A - A kind of low-voltage power supply system and electric automobile applied to electric automobile - Google Patents

A kind of low-voltage power supply system and electric automobile applied to electric automobile Download PDF

Info

Publication number
CN107627852A
CN107627852A CN201710842890.4A CN201710842890A CN107627852A CN 107627852 A CN107627852 A CN 107627852A CN 201710842890 A CN201710842890 A CN 201710842890A CN 107627852 A CN107627852 A CN 107627852A
Authority
CN
China
Prior art keywords
low
buck
converters
power supply
tension battery
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.)
Pending
Application number
CN201710842890.4A
Other languages
Chinese (zh)
Inventor
王天顺
徐敬仁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI CONTROLLER ELECTRONICS TECHNOLOGY CO LTD
Original Assignee
SHANGHAI CONTROLLER ELECTRONICS TECHNOLOGY CO LTD
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANGHAI CONTROLLER ELECTRONICS TECHNOLOGY CO LTD filed Critical SHANGHAI CONTROLLER ELECTRONICS TECHNOLOGY CO LTD
Priority to CN201710842890.4A priority Critical patent/CN107627852A/en
Publication of CN107627852A publication Critical patent/CN107627852A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/72Electric energy management in electromobility

Abstract

The invention discloses a kind of low-voltage power supply system applied to electric automobile, including high voltage power supply, buck DC/DC converters, low tension battery and reverse isolation device, the input of buck DC/DC converters is connected with high voltage power supply, the output end of buck DC/DC converters is connected with the first end of reverse isolation device, and the second end of reverse isolation device is connected with low tension battery and low-voltage load respectively;Buck DC/DC converters are used to the high voltage direct current of high voltage power supply output being converted to low-voltage DC, there is provided to low tension battery and low-voltage load;Reverse isolation device is used for the electric current for blocking low tension battery to flow to buck DC/DC converters.Buck DC/DC converters in the present invention safely can also charge while being powered to low-voltage load for low tension battery, improve operating efficiency.The invention also discloses a kind of electric automobile, has identical beneficial effect with above-mentioned low-voltage power supply system.

Description

A kind of low-voltage power supply system and electric automobile applied to electric automobile
Technical field
The present invention relates to low-voltage power supply field, more particularly to a kind of low-voltage power supply system applied to electric automobile, sheet Invention further relates to a kind of electric automobile.
Background technology
Low-voltage power supply system is had a wide range of applications in daily life, such as the field such as electric automobile, computer all should With low-voltage power supply system.In the prior art, the low-voltage power supply system of electric automobile generally includes high voltage power supply, buck DC/ DC (Direct Current direct currents) converter, low tension battery.Wherein, buck DC/DC converters are used for high-tension electricity The high voltage direct current of source input is converted to low-voltage DC, there is provided to low tension battery or low-voltage load.
In the prior art, it is contemplated that during the not enough power supply of high voltage power supply, the output electricity of buck DC/DC converters can be caused Pressure, if now buck DC/DC converters are powered for low tension battery, can occur less than the voltage at low tension battery both ends The phenomenon that electric current pours in down a chimney, so as to damage buck DC/DC converters.To avoid the generation of the phenomenon, in the prior art, buck DC/DC converters will not charge for battery again when being powered to low-voltage load, will not be again to low when being charged for battery Pressure load supplying, operating efficiency are low.
Therefore, how to provide a kind of scheme for solving above-mentioned technical problem is that those skilled in the art need to solve at present Problem.
The content of the invention
It is an object of the invention to provide a kind of low-voltage power supply system applied to electric automobile, operating efficiency is improved;This The another object of invention is to provide a kind of electric automobile for including above-mentioned low-voltage power supply system, the work of low-voltage power supply system therein It is higher to make efficiency.
In order to solve the above technical problems, the invention provides a kind of low-voltage power supply system applied to electric automobile, including High voltage power supply, buck DC/DC converters, low tension battery and reverse isolation device, the input of buck DC/DC converters End is connected with high voltage power supply, and the output end of buck DC/DC converters is connected with the first end of reverse isolation device, reverse isolation Second end of device is connected with low tension battery and low-voltage load respectively;Buck DC/DC converters are used for high voltage power supply is defeated The high voltage direct current gone out is converted to low-voltage DC, there is provided to low tension battery and low-voltage load;Reverse isolation device is used to hinder Disconnected low tension battery flows to the electric current of buck DC/DC converters.
Preferably, low-voltage power supply system also includes:
The current management device being connected respectively with buck DC/DC converters and low tension battery, bears for detecting low pressure The load current I of load2, and according to load current I2With the rated current I of buck DC/DC converters1Control buck DC/DC Converter and low tension battery are powered for low-voltage load simultaneously.
Preferably, current management device is specifically used for the load current I of detection low-voltage load2, work as I2≤I1When, control drop Pressure type DC/DC converters are using output current as I2Powered to low-voltage load, work as I2> I1When, control buck DC/DC converters with Low tension battery is powered to low-voltage load simultaneously, wherein, the supply current sum of buck DC/DC converters and low tension battery Equal to I2
Preferably, the process for controlling buck DC/DC converters to be powered simultaneously to low-voltage load with low tension battery is specific For:
Control buck DC/DC converters to the electric current that low-voltage load exports be I1, low tension battery is defeated to low-voltage load The electric current gone out is I2-I1
Preferably, I is worked as2≤I1When, buck DC/DC converters are additionally operable to charge for low tension battery.
Preferably, high voltage power supply is electrokinetic cell.
Preferably, low-voltage power supply system also includes:
Flow equalizing circuit, the electric current exported for balanced buck DC/DC converters and low tension battery to low-voltage load.
Preferably, low-voltage power supply system also includes:
First end is connected with buck DC/DC converters and flow equalizing circuit respectively, what the second end was connected with low tension battery BMS (Battery Management System battery management systems), for carrying out pipe to the charging and discharging currents of low tension battery Reason, prevents low tension battery is overcharged and crossed from putting.
In order to solve the above-mentioned technical problem, present invention also offers a kind of electric automobile, including such as above-mentioned any one Low-voltage power supply system.
The invention provides a kind of low-voltage power supply system applied to electric automobile, including high voltage power supply, buck DC/DC Converter, low tension battery and reverse isolation device, the input of buck DC/DC converters are connected with high voltage power supply, drop The output end of pressure type DC/DC converters is connected with the first end of reverse isolation device, the second end of reverse isolation device respectively with Low tension battery and low-voltage load connection;Buck DC/DC converters are used to change the high voltage direct current of high voltage power supply output For low-voltage DC, there is provided to low tension battery and low-voltage load;Reverse isolation device is used to block low tension battery flow direction drop The electric current of pressure type DC/DC converters.It can be seen that because the reverse isolation device of the application offer can prevent the electricity of low tension battery Stream pours in down a chimney to buck DC/DC converters, and therefore, buck DC/DC converters in the application are being powered to low-voltage load Can also be that low tension battery charges simultaneously, even if the output voltage of buck DC/DC converters is less than low tension battery both ends Voltage electric current will not also occur pour in down a chimney phenomenon, so as to would not also damage buck DC/DC converters, improve work effect Rate.
Present invention also offers a kind of electric automobile, has identical beneficial effect with above-mentioned low-voltage power supply system.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, it will use below required in embodiment Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability For the those of ordinary skill of domain, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached Figure.
Fig. 1 is a kind of structural representation of low-voltage power supply system applied to electric automobile provided by the invention;
Fig. 2 is a kind of workflow diagram of current management device provided by the invention.
Embodiment
The core of the present invention is to provide a kind of low-voltage power supply system applied to electric automobile, improves operating efficiency;This Another core of invention is to provide a kind of electric automobile for including above-mentioned low-voltage power supply system, the work of low-voltage power supply system therein It is higher to make efficiency.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 is refer to, Fig. 1 is a kind of structural representation of low-voltage power supply system applied to electric automobile provided by the invention Figure, including high voltage power supply 1, buck DC/DC converters 2, low tension battery 4 and reverse isolation device 3, wherein:
The input of buck DC/DC converters 2 is connected with high voltage power supply 1, the output end of buck DC/DC converters 2 Be connected with the first end of reverse isolation device 3, the second end of reverse isolation device 3 respectively with low tension battery 4 and low-voltage load Connection;Buck DC/DC converters 2 are used to the high voltage direct current that high voltage power supply 1 exports being converted to low-voltage DC, there is provided give Low tension battery 4 and low-voltage load;Reverse isolation device 3 is used to block low tension battery 4 to flow to buck DC/DC converters 2 Electric current.
Firstly the need of explanation, low-voltage load here can be the 12V low-voltage loads used in electric automobile, such as car Lamp, rain brush, steering assist motor etc., the application are not particularly limited herein.
In view of buck DC/DC converters 2 of the prior art in its output voltage less than the both ends of low tension battery 4 electricity If also charged during pressure to low tension battery 4, the phenomenon that electric current pours in down a chimney can occur, so as to damage buck DC/DC converters 2, the embodiment of the present invention is provided with reverse isolation device 3 in the output end of buck DC/DC converters 2, to block low pressure to store Battery 4 flows to the electric current of buck DC/DC converters 2, so as to realize the buck DC/DC converters 2 in the embodiment of the present invention It is safely that low tension battery 4 charges that can also be while being powered to low-voltage load.
It can be seen that because the reverse isolation device that the application provides can prevent the electric current of low tension battery from pouring in down a chimney to buck DC/DC converters, therefore, the buck DC/DC converters in the application can also be low while being powered to low-voltage load Battery charging is pressed, even if the output voltage of buck DC/DC converters will not also be sent out less than the voltage at low tension battery both ends Raw electric current pours in down a chimney phenomenon, so as to would not also damage buck DC/DC converters, improves operating efficiency.
On the basis of above-described embodiment:
As a kind of preferred embodiment, low-voltage power supply system also includes:
The current management device 5 being connected respectively with buck DC/DC converters 2 and low tension battery 4, for detecting low pressure The load current I of load2, and according to load current I2With the rated current I of buck DC/DC converters 21Control buck DC/ DC converters 2 and low tension battery 4 are powered for low-voltage load simultaneously.
In the prior art, when being powered for low-voltage load, the power of buck DC/DC converters 1 will meet low-voltage load Power, then as the change of the power of loading demand is big, buck DC/DC converters 1 will also provide bigger power output, its Bear larger, loss is very fast.
In the application, current management device 5 is according to load current I2With the rated current I of buck DC/DC converters 21It Between relation come control buck DC/DC converters 2 and low tension battery 4 and meanwhile for low-voltage load power, for example, working as I2> I1 When, the electric current that buck DC/DC converters 2 export its rated current half can be controlled to control low pressure to low-voltage load Battery 4 provides load current of remainder etc. for low-voltage load.It is negative that the low tension battery 4 of the application can undertake a part Electric current is carried, the power demand without individually bearing low-voltage load of buck DC/DC converters 1, reduces buck DC/DC changes The burden of parallel operation 1, reduce the consumption to it.
Wherein, by soft-switch PWM (Pulse Width Modulation pulse width modulations) inside current management device 5 Control, to control the output current of buck DC/DC converters 1 and low tension battery 4.
As a kind of preferred embodiment, current management device 5 is specifically used for the load current I of detection low-voltage load2, when I2≤I1When, buck DC/DC converters 2 are controlled using output current as I2Powered to low-voltage load, work as I2> I1When, control decompression Formula DC/DC converters 2 are powered to low-voltage load simultaneously with low tension battery 4, wherein, buck DC/DC converters 2 store with low pressure The supply current sum of battery 4 is equal to I2
Specifically, work as I2≤I1When, current management device controls the electricity that buck DC/DC converters export to low-voltage load Flow I2For the electric current required for low-voltage load, it is ensured that low-voltage load safely and steadly works.
Specifically, work as I2> I1When, buck DC/DC converters 2 are just not enough to provide the load electricity required for low-voltage load Stream, current management device 5 control buck DC/DC converters 2 to be powered simultaneously to low-voltage load with low tension battery 4, both Supply current sum is equal to I2.Ensure that the total current for flowing into low-voltage load is the load current I required for it2, be advantageous to low pressure Work load normal table.
It is, of course, also possible to according to other I1With I2Relation come to buck DC/DC converters 2 to low-voltage load export Electric current be controlled with the electric current that low tension battery 4 exports to low-voltage load, for example, I can detected2> 3I1When/4, Buck DC/DC converters 2 are controlled to be powered simultaneously to low-voltage load with low tension battery 4, both supply current sums are equal to I2, it is of the invention not limit herein.
As a kind of preferred embodiment, control buck DC/DC converters 2 are born to low pressure simultaneously with low tension battery 4 Carrying the process powered is specially:
The electric current for controlling buck DC/DC converters 2 to be exported to low-voltage load is I1, low tension battery 4 is to low-voltage load The electric current of output is I2-I1
In the prior art, because buck DC/DC converters need the independent loading demand for meeting low-voltage load, thus work as When loading demand increases, also correspondingly to increase the volume of buck DC/DC converters, cost is higher, and installation is not also square Just.
Preferentially it is powered in the embodiment of the present invention using buck DC/DC converters for low-voltage load, works as I2≤I1When, Low-voltage load power supply is individually for by buck DC/DC converters, works as I2> I1When, buck DC/DC converters provide the defeated of quota Go out power, the loading demand of remainder is met by low tension battery.
First, the frequency of use of low tension battery is reduced, reduces the loss to low tension battery, improves low pressure electric power storage The life-span in pond.
Furthermore, it is possible to the specification of unified buck DC/DC converters, different capabilities are matched according to the load state of vehicle Low tension battery, the apolegamy of user are more flexible;Meanwhile low power buck DC/DC converters can be selected, such as Rated power is 240W buck DC/DC converters, and small volume is easily installed, and also saves cost;Further, since low pressure The power selection scope of battery is larger, therefore adds the power scope of application of the low-voltage power supply system.For example, it will can drop The uniform specification of pressure type DC/DC converters is rated power 240W, rated current 20A, rated voltage 12V, in such cases, such as It is 600W that fruit, which needs the maximum load demand that meets, can select rated voltage 12V, capacity for 20AH low tension battery, such as It is 1200W that fruit, which needs the maximum load demand that meets, selection rated voltage 12V, capacity for 40AH low tension battery.
Certainly, buck DC/DC converters 2 to the electric current that low-voltage load exports can also be 3I1/ 4 grade other numerical value, phase Answer, low tension battery 4 is to low-voltage load output load current I2Remainder, the present invention do not limit herein.
As a kind of preferred embodiment, work as I2≤I1When, buck DC/DC converters 2 are additionally operable to as low tension battery 4 Charging.
Specifically, refer to Fig. 2, Fig. 2 is a kind of workflow diagram of current management device 5 provided by the invention, decompression Formula DC/DC converters 2 can be in I2≤I1In the case of, also it is that low tension battery 4 charges while being powered for low-voltage load, Substantially increase the operating efficiency of low-voltage power supply system.
As a kind of preferred embodiment, high voltage power supply 1 is electrokinetic cell.
It should be noted that electrokinetic cell provides electric energy for the motor in electric automobile, being must can not in electric automobile Few part.The embodiment of the present invention uses high voltage power supply of the electrokinetic cell as buck DC/DC converters, reasonably make use of Intrinsic resource on electric automobile, reduces unnecessary waste.
Certainly, high voltage power supply 1 herein can also select other kinds of high voltage power supply 1, such as high tension battery etc., sheet Invention does not limit herein.
As a kind of preferred embodiment, low-voltage power supply system also includes:
Flow equalizing circuit 6, the electricity exported for balanced buck DC/DC converters 2 and low tension battery 4 to low-voltage load Stream.
Specifically, flowing electric current uses advanced two-way parallel current-sharing, limited current algorithm, power supply performance is greatly improved, It ensure that buck DC/DC converters 2 are stably powered with low tension battery 4 for low-voltage load, add the use of each several part Life-span.
Certainly, the species of flow equalizing circuit has a lot, can choose as needed, and the present invention does not limit herein.
As a kind of preferred embodiment, low-voltage power supply system also includes:
First end is connected with buck DC/DC converters 2 and flow equalizing circuit 6 respectively, and the second end is connected with low tension battery 4 BMS 7, for being managed to the charging and discharging currents of low tension battery 4, prevent low tension battery 4 is overcharged and crossed from putting.
Specifically, BMS 7 manages the charge and discharge process of low tension battery 4, prevent it overcharges or crossed from putting, extend low pressure storage The service life of battery.
In order to solve the above-mentioned technical problem, present invention also offers a kind of electric automobile, including such as above-mentioned any one Low-voltage power supply system.
Above-described embodiment is refer on a kind of introduction of electric automobile provided by the present invention, the present invention is no longer superfluous herein State.
It should also be noted that, in this manual, such as first and second or the like relational terms be used merely to by One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation Between any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant meaning Covering including for nonexcludability, so that process, method, article or equipment including a series of elements not only include that A little key elements, but also the other element including being not expressly set out, or also include for this process, method, article or The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged Except other identical element in the process including the key element, method, article or equipment being also present.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention. A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one The most wide scope caused.

Claims (9)

1. a kind of low-voltage power supply system applied to electric automobile, it is characterised in that including high voltage power supply, buck direct current/straight DC/DC converters, low tension battery and reverse isolation device are flowed, wherein:
The input of the buck DC/DC converters is connected with the high voltage power supply, the buck DC/DC converters it is defeated Go out end to be connected with the first end of the reverse isolation device, the second end of the reverse isolation device respectively with the low pressure electric power storage Pond and low-voltage load connection;
The buck DC/DC converters are used to the high voltage direct current that the high voltage power supply exports being converted to low-voltage DC, It is supplied to the low tension battery and the low-voltage load;
The reverse isolation device is used for the electric current for blocking the low tension battery to flow to the buck DC/DC converters.
2. low-voltage power supply system according to claim 1, it is characterised in that the low-voltage power supply system also includes:
The current management device being connected respectively with the buck DC/DC converters and the low tension battery, for detecting State the load current I of low-voltage load2, and according to the load current I2With the rated current I of the buck DC/DC converters1 Control the buck DC/DC converters and the low tension battery while powered for the low-voltage load.
3. low-voltage power supply system according to claim 2, it is characterised in that the current management device is specifically used for detection The load current I of the low-voltage load2, work as I2≤I1When, the buck DC/DC converters are controlled using output current as I2To The low-voltage load power supply, works as I2> I1When, control the buck DC/DC converters with the low tension battery simultaneously to institute Low-voltage load power supply is stated, wherein, the supply current sum of the buck DC/DC converters and the low tension battery is equal to I2
4. low-voltage power supply system according to claim 3, it is characterised in that the control buck DC/DC conversion The process that device and the low tension battery are powered to the low-voltage load simultaneously is specially:
Control the buck DC/DC converters to the electric current that the low-voltage load exports be I1, the low tension battery is to described The electric current of low-voltage load output is I2-I1
5. low-voltage power supply system according to claim 3, it is characterised in that described to work as I2≤I1When, the buck DC/ DC converters are additionally operable to charge for the low tension battery.
6. low-voltage power supply system according to claim 1, it is characterised in that the high voltage power supply is electrokinetic cell.
7. according to the low-voltage power supply system described in claim any one of 1-6, it is characterised in that the low-voltage power supply system also wraps Include:
Flow equalizing circuit, the electricity exported for the balanced buck DC/DC converters with the low tension battery to low-voltage load Stream.
8. low-voltage power supply system according to claim 7, it is characterised in that the low-voltage power supply system also includes:
First end is connected with the buck DC/DC converters and the flow equalizing circuit respectively, the second end and the low pressure electric power storage The battery management system BMS of pond connection, for being managed to the charging and discharging currents of the low tension battery, prevents the low pressure Accumulator super-charge and mistake are put.
9. a kind of electric automobile, it is characterised in that including the low-voltage power supply system described in claim any one of 1-8.
CN201710842890.4A 2017-09-18 2017-09-18 A kind of low-voltage power supply system and electric automobile applied to electric automobile Pending CN107627852A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710842890.4A CN107627852A (en) 2017-09-18 2017-09-18 A kind of low-voltage power supply system and electric automobile applied to electric automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710842890.4A CN107627852A (en) 2017-09-18 2017-09-18 A kind of low-voltage power supply system and electric automobile applied to electric automobile

Publications (1)

Publication Number Publication Date
CN107627852A true CN107627852A (en) 2018-01-26

Family

ID=61102967

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710842890.4A Pending CN107627852A (en) 2017-09-18 2017-09-18 A kind of low-voltage power supply system and electric automobile applied to electric automobile

Country Status (1)

Country Link
CN (1) CN107627852A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109193833A (en) * 2018-09-13 2019-01-11 中国汽车工程研究院股份有限公司 A kind of electric circuit working method of new-energy automobile low tension battery benefit
CN112477598A (en) * 2020-12-07 2021-03-12 安徽江淮汽车集团股份有限公司 Electric automobile low-voltage system control method, device, equipment and storage medium
CN113037091A (en) * 2019-12-24 2021-06-25 本田技研工业株式会社 Voltage converter
CN113525169A (en) * 2020-04-20 2021-10-22 中车时代电动汽车股份有限公司 Power control device, low-voltage power supply system and motor vehicle
CN113968136A (en) * 2021-10-29 2022-01-25 华人运通(江苏)技术有限公司 Low-voltage energy control method, system, equipment and medium for electric automobile

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102501770A (en) * 2011-11-03 2012-06-20 中国科学院电工研究所 Electrical system for pure electric vehicle
CN102902292A (en) * 2012-09-29 2013-01-30 北京智行鸿远汽车技术有限公司 Method for controlling voltage setting point of direct current high-low voltage converter of pure electromobile
CN104124743A (en) * 2014-07-25 2014-10-29 株洲南车时代电气股份有限公司 Storage battery charging device
CN206031107U (en) * 2016-08-31 2017-03-22 安徽安凯汽车股份有限公司 Electric automobile low pressure storage battery microcomputer management system
CN206060330U (en) * 2016-05-12 2017-03-29 上海汽车集团股份有限公司 Vehicle-mounted DC/DC transducers and vehicle-mounted low-voltage power supply system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102501770A (en) * 2011-11-03 2012-06-20 中国科学院电工研究所 Electrical system for pure electric vehicle
CN102902292A (en) * 2012-09-29 2013-01-30 北京智行鸿远汽车技术有限公司 Method for controlling voltage setting point of direct current high-low voltage converter of pure electromobile
CN104124743A (en) * 2014-07-25 2014-10-29 株洲南车时代电气股份有限公司 Storage battery charging device
CN206060330U (en) * 2016-05-12 2017-03-29 上海汽车集团股份有限公司 Vehicle-mounted DC/DC transducers and vehicle-mounted low-voltage power supply system
CN206031107U (en) * 2016-08-31 2017-03-22 安徽安凯汽车股份有限公司 Electric automobile low pressure storage battery microcomputer management system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109193833A (en) * 2018-09-13 2019-01-11 中国汽车工程研究院股份有限公司 A kind of electric circuit working method of new-energy automobile low tension battery benefit
CN109193833B (en) * 2018-09-13 2020-08-07 中国汽车工程研究院股份有限公司 Working method of low-voltage storage battery circuit supplementing circuit of new energy automobile
CN113037091A (en) * 2019-12-24 2021-06-25 本田技研工业株式会社 Voltage converter
CN113037091B (en) * 2019-12-24 2024-02-09 本田技研工业株式会社 Voltage conversion device
CN113525169A (en) * 2020-04-20 2021-10-22 中车时代电动汽车股份有限公司 Power control device, low-voltage power supply system and motor vehicle
CN112477598A (en) * 2020-12-07 2021-03-12 安徽江淮汽车集团股份有限公司 Electric automobile low-voltage system control method, device, equipment and storage medium
CN113968136A (en) * 2021-10-29 2022-01-25 华人运通(江苏)技术有限公司 Low-voltage energy control method, system, equipment and medium for electric automobile
CN113968136B (en) * 2021-10-29 2023-11-10 华人运通(江苏)技术有限公司 Low-voltage energy control method, system, equipment and medium for electric automobile

Similar Documents

Publication Publication Date Title
CN107627852A (en) A kind of low-voltage power supply system and electric automobile applied to electric automobile
US11273718B2 (en) Electric vehicle battery charger
WO2018028518A1 (en) Electric vehicle energy management system, control method therefor, and electric vehicle
CN102195506B (en) The system and method for inactive matrix converter
CN107069695B (en) A kind of mixed energy storage system and its control method based on double active full-bridge converters
CN203658549U (en) Power battery detection device and power battery detection system including same
CN104079029B (en) Electric energy feedback type battery charging and discharging and partial volume equipment
CN105576731A (en) Vehicle-mounted charging and inversion bidirectional AC power supply system
CN103633842B (en) A kind of Single switch oppositely exports secondary molded breadth gain changer
CN106385101B (en) Method and device for realizing power supply of high-power elevator automatic rescue device
TW201822428A (en) A bidirectional vehicle-mounted charge and discharge system and its methods
CN203491707U (en) Energy storage system based on cascade utilization of power battery
WO2010140217A1 (en) Power supply system
CN203734364U (en) Light storage mixing system
US9472980B2 (en) Integrated buck/boost battery management for power storage and delivery
CN113036831B (en) Control method and device of charging system
CN102624016A (en) Bidirectional energy flowing flow battery energy storage grid connection device and control method thereof
US20220200303A1 (en) Portable power supply
CN111231703A (en) Charging and discharging control method and charging and discharging system for charging pile
CN105048596A (en) Hybrid charging and discharging control device for storage battery packs
CN109428384A (en) A kind of backup power supply system of AC power supply device, circuit board and standby method for electrically
WO2013031934A1 (en) Interconnected power system
CN203800662U (en) Highly-efficient mobile power supply
CN103091635A (en) Energy feedback type power battery testing system
CN109687433B (en) Flexible transformer substation structure

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20180126