CN103904724A - Battery management system free of low voltage connection - Google Patents
Battery management system free of low voltage connection Download PDFInfo
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- CN103904724A CN103904724A CN201310720513.5A CN201310720513A CN103904724A CN 103904724 A CN103904724 A CN 103904724A CN 201310720513 A CN201310720513 A CN 201310720513A CN 103904724 A CN103904724 A CN 103904724A
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- battery
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- quick change
- electric automobile
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Abstract
The invention discloses a battery management system free of low voltage connection. The battery management system is used for management of at least one quick-changing battery box of an electric automobile. Each quick-changing battery box comprises at least one battery module. The battery management system comprises at least one battery slave control unit, at least one CAN bus and a battery main control unit, wherein the battery slave control units are connected with the battery modules and used for collecting intrinsic parameters of the battery modules; the CAN buses are connected with the battery slave control units in a wireless mode to receive signals of the battery slave control units and send the signals containing the intrinsic parameters to the electric automobile; one end of the battery main control unit is connected with the CAN buses, and the other end of the battery main control unit is connected with the electric automobile. According to the battery management system, the inductive coupling type contactless power transmission and wireless communication technology is adopted, mechanical structures of the quick-changing battery boxes, electrical connection and the like can be better realized, separation and quick change of the battery boxes can be better achieved, and low-voltage-free contact between the quick-changing battery boxes and the whole automobile is achieved.
Description
Technical field
The present invention relates to battery management field, particularly a kind of battery management system connecting without low pressure.
Background technology
Along with the development of electric automobile, the charging problem of electric automobile has become the large problem that restriction electric automobile further develops, how extending battery, improve energy efficiency and the operational reliability of battery, is the problem that electric automobile energy management system must solve.When battery management system, be related to that electric automobile is practical, one of commercial key technology, and can practical, the commercialization of electric automobile be played an important role the dead research about capacity predict as the battery of EMS important component part, therefore research and develop battery management technology and system and make its industrialization there is very great meaning.
By research, adopt branch mailbox quick change battery box can solve charging interval length and the short problem of course continuation mileage of electric automobile.For relatively high electric energy being provided to electric automobile and mixed power electric car, the low press contacts of quick change battery box and electric automobile mainly contains low-voltage power supply and communication etc., and high pressure contact mainly contains positive pole and the negative pole of battery series connection in battery case.But, the mode that battery management system in existing quick change battery box mostly adopts connector or directly contacts with the low press contacts of electric automobile, these modes can be subject to the impact of the factors such as connector access times, dustproof, waterproof, against shock, cause mechanical structure insecure, be electrically connected dangerous reliable.
Summary of the invention
Technical problem of the present invention is to provide a kind of battery management system connecting without low pressure, adopts the mode of radio communication, can solve the problems such as mechanical structure that traditional direct contact brings is unstable.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
The battery management system connecting without low pressure, manages at least one quick change battery box to electric automobile, and described quick change battery box comprises at least one battery module 200, and described battery management system comprises:
At least one battery is from control unit 100, and described battery connects described battery module 200 from control unit, and gathers the inner parameter of described battery module 200;
At least one CAN bus, with described battery from control unit 100 wireless connections to receive the signal of described battery from control unit 100, and send the signal that comprises described inner parameter to described electric automobile;
One battery main control unit 100, its one end connects described CAN bus, and the other end connects described electric automobile;
Described quick change battery box includes a primary coil, and described battery main control unit comprises a secondary coil, and described primary coil is communicated by letter by battery induction wireless with described secondary coil.
As further technical scheme, this battery management system also comprises a high pressure monitoring means 10, and described high pressure monitoring means 10 one end are connected with described quick change battery box, and one end is connected with described CAN bus.This high pressure monitoring means can be used for total voltage and the electric current of observation circuit, to avoid circuit total voltage too high.
As further technical scheme, battery main control unit 9 also includes diode rectifier and filtering capacitor.
As further technical scheme, described quick change battery box also includes one drive circuit, and described drive circuit is connected with described primary coil.This drive circuit is in order to drive this primary coil.
As further technical scheme, between described battery main control unit and described electric automobile, be connected by a charhing unit 2, and carry out radio communication by described CAN bus.
As further technical scheme, between described quick change battery box and described electric automobile, be connected with a power supply unit 3.This power supply unit is in order to provide electric energy to fast battery case.
As further technical scheme, between described quick change battery box and described power supply unit 3, be connected with a circuit breaker.This circuit breaker is in order to blocking circuit when electric current is too high.
As further technical scheme, between described quick change battery box and described circuit breaker, be also connected with a switching circuit.
As further technical scheme, described battery is the control unit of the information such as the monomer voltage, temperature, electric current of battery the described fast changing battery battery case of a collection from control unit.
Compared with prior art, the present invention has following advantage and beneficial effect:
This battery management system adopts the contactless delivery of electrical energy of inductive coupling type and wireless communication technology, can better solve the problems such as quick change battery box mechanical structure and electrical connection, better realize battery case branch mailbox quick change, realize quick change battery box and car load without low press contacts.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, in describing embodiment below, needed accompanying drawing does simple introduction, apparent, accompanying drawing described below is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the circuit diagram of a kind of battery management system connecting without low pressure of the present invention.
Embodiment
By reference to the accompanying drawings technical scheme of the present invention is carried out to clear, complete description below by embodiment; obviously; described embodiment is only a part of embodiment of the present invention; instead of whole embodiment; based on embodiments of the invention; those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
In this article, relational language, such as first and second, top and bottom etc., can be used for an entity and another entity or action to distinguish, and not inevitable requirement or adopt described entity or action between this type of relation or the order of any reality.Term " comprises ", " comprising " or other any variants, be intended to contain and exclusively have, comprise that technique, method, article or the device of enumerating element not only comprise described element for one time, but also can comprise that other do not express process that list or described, method, object product or the intrinsic element of device.By " comprising ... " the element guiding, not more multiple constraint in the situation that, and is not precluded within process, method, article or the device that comprises described element and has extra similar elements.
Shown in Fig. 1, a kind of battery management system connecting without low pressure, for at least one quick change battery box of electric automobile is managed, described quick change battery box comprises at least one battery module 200, described battery management system comprises: at least one battery is from control unit 100, described battery connects described battery module 200 from control unit, and gathers the inner parameter of described battery module 200; At least one CAN bus, with described battery from control unit 100 wireless connections to receive the signal of described battery from control unit 100, and send the signal that comprises described inner parameter to described electric automobile; One battery main control unit 100, its one end connects described CAN bus, and the other end connects described electric automobile; Described quick change battery box includes a primary coil, and described battery main control unit comprises a secondary coil, and described primary coil is communicated by letter by battery induction wireless with described secondary coil.In this Fig. 1, battery module 200 is preferably selected 10, selects 10 from control unit.
Continue with reference to Fig. 1, this battery management system also comprises a high pressure monitoring means 10, and described high pressure monitoring means 10 one end are connected with described quick change battery box, and one end is connected with described CAN bus.This high pressure monitoring means can be used for total voltage and the electric current of observation circuit, to avoid circuit total voltage too high.In the figure, battery main control unit 9 also includes diode rectifier and filtering capacitor., described quick change battery box also includes one drive circuit, and described drive circuit is connected with described primary coil.This drive circuit is in order to drive this primary coil.In addition, between described battery main control unit and described electric automobile, be connected by a charhing unit 2, and carry out radio communication by described CAN bus.In addition, be connected with a power supply unit 3 between described quick change battery box and described electric automobile, this power supply unit is in order to provide electric energy to fast battery case.
In this Fig. 1, between described quick change battery box and described power supply unit 3, be connected with a circuit breaker.This circuit breaker is in order to blocking circuit when electric current is too high.In this Fig. 1, between described quick change battery box and described circuit breaker, be also connected with a switching circuit.In the figure, described battery is the control unit of the information such as monomer voltage, temperature, electric current of battery the described fast changing battery battery case of a collection from control unit.
This battery management system adopts the contactless delivery of electrical energy of inductive coupling type and wireless communication technology, can better solve the problems such as quick change battery box mechanical structure and electrical connection, better realize battery case branch mailbox quick change, realize quick change battery box and car load without low press contacts.
The above embodiment has only expressed preferred embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (9)
1. the battery management system connecting without low pressure, manages at least one quick change battery box to electric automobile, and described quick change battery box comprises at least one battery module (200), it is characterized in that, described battery management system comprises:
At least one battery is from control unit (100), and described battery connects described battery module (200) from control unit (100), and gathers the inner parameter of described battery module (200);
At least one CAN bus, with described battery from control unit (100) wireless connections to receive the signal of described battery from control unit (100), and send the signal that comprises described inner parameter to described electric automobile;
One battery master control list (100) unit, its one end connects described CAN bus, and the other end connects described electric automobile;
Described quick change battery box includes a primary coil, and described battery main control unit comprises a secondary coil, and described primary coil is communicated by letter by battery induction wireless with described secondary coil.
2. a kind of battery management system connecting without low pressure as claimed in claim 1, is characterized in that, also comprise a high pressure monitoring means (10), described high pressure monitoring means (10) one end is connected with described quick change battery box, and one end is connected with described CAN bus.
3. a kind of battery management system connecting without low pressure as claimed in claim 1, is characterized in that, described battery main control unit (9) also includes diode rectifier and filtering capacitor.
4. a kind of battery management system connecting without low pressure as claimed in claim 1, is characterized in that, described quick change battery box also includes one drive circuit, and described drive circuit is connected with described primary coil.
5. a kind of battery management system connecting without low pressure as claimed in claim 1, is characterized in that, is connected, and carries out radio communication by described CAN bus between described battery main control unit and described electric automobile by a charhing unit (2).
6. a kind of battery management system connecting without low pressure as claimed in claim 1, is characterized in that, is connected with a power supply unit (3) between described quick change battery box and described electric automobile.
7. a kind of battery management system connecting without low pressure as claimed in claim 3, is characterized in that, between described quick change battery box and described power supply unit (3), is connected with a circuit breaker.
8. a kind of battery management system connecting without low pressure as claimed in claim 4, is characterized in that, between described quick change battery box and described circuit breaker, is also connected with a switching circuit.
9. a kind of battery management system connecting without low pressure as claimed in claim 1, is characterized in that, described battery is the control unit of the information such as the monomer voltage, temperature, electric current of battery the described fast changing battery battery case of a collection from control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310720513.5A CN103904724A (en) | 2013-12-24 | 2013-12-24 | Battery management system free of low voltage connection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310720513.5A CN103904724A (en) | 2013-12-24 | 2013-12-24 | Battery management system free of low voltage connection |
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| CN103904724A true CN103904724A (en) | 2014-07-02 |
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Cited By (3)
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| CN107732985A (en) * | 2016-08-10 | 2018-02-23 | 宁德时代新能源科技股份有限公司 | Distributed battery management system |
| CN111257767A (en) * | 2020-02-21 | 2020-06-09 | 深圳普瑞赛思检测技术有限公司 | Battery integration detection system and method |
| CN111942224A (en) * | 2019-05-17 | 2020-11-17 | 盾安汽车热管理科技有限公司 | Battery heat management unit and unit circuit |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732985A (en) * | 2016-08-10 | 2018-02-23 | 宁德时代新能源科技股份有限公司 | Distributed battery management system |
| US10439430B2 (en) | 2016-08-10 | 2019-10-08 | Contemporary Amperex Technology Co., Limited | Distributed battery management system |
| CN107732985B (en) * | 2016-08-10 | 2019-11-29 | 宁德时代新能源科技股份有限公司 | Distributed battery management system |
| CN111942224A (en) * | 2019-05-17 | 2020-11-17 | 盾安汽车热管理科技有限公司 | Battery heat management unit and unit circuit |
| CN111942224B (en) * | 2019-05-17 | 2022-04-05 | 盾安汽车热管理科技有限公司 | Battery heat management unit and unit circuit |
| CN111257767A (en) * | 2020-02-21 | 2020-06-09 | 深圳普瑞赛思检测技术有限公司 | Battery integration detection system and method |
| CN111257767B (en) * | 2020-02-21 | 2022-07-12 | 深圳普瑞赛思检测技术有限公司 | Battery integration detection system and method |
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Application publication date: 20140702 |