CN104108315A - Electric automobile battery safety protection system and method - Google Patents
Electric automobile battery safety protection system and method Download PDFInfo
- Publication number
- CN104108315A CN104108315A CN201410294124.5A CN201410294124A CN104108315A CN 104108315 A CN104108315 A CN 104108315A CN 201410294124 A CN201410294124 A CN 201410294124A CN 104108315 A CN104108315 A CN 104108315A
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- controller
- drive circuit
- circuit module
- signal
- contactor drive
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- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses an electric automobile battery safety protection system. The electric automobile battery safety protection system comprises a controller, an acceleration sensor, a contactor driving circuit module, a contactor module, a battery charger, a storage battery pack and a load. The contactor module comprises a plurality of contactors, the storage battery pack comprises a plurality of storage battery modules, the storage battery modules included by the storage battery pack are connected in series, and one contactor is connected between every two storage battery modules in series. The invention further discloses an electric automobile battery safety protection method which can realize disconnection of the battery modules in the battery pack when an electric automobile is collided or is stopped and is not charged. The electric automobile battery safety protection system and method can realize disconnection of the battery modules when the electric automobile is in a stopped and uncharged state and is collided, and therefore potential safety hazards brought by high voltage are avoided.
Description
Technical field
The present invention relates to battery management system, especially a kind of batteries of electric automobile security protection system and method.
Background technology
Short circuit hidden danger under electronlmobil high potential has been brought very large challenge to the popularization of electronlmobil, and electronlmobil voltage is up to more than 300 volts, if bump, electronlmobil should be at very first time auto-breaking, so that guarantee can short circuit.If but the avoidance of policy of anti-short circuit will lead to major accident, threaten personnel's personal safety by bus.This should possess oil circuit automatic locking function the same just as conventional gasoline car in the time bumping.Otherwise, also there will be and reveal the extreme case exploding because of fuel oil.
The safety protection function of existing cell management system of electric automobile mainly contains overcurrent protection, super-charge super-discharge protection; overheat protector etc.; protection shorter mention when electronlmobil is crashed, producer is many by selecting the battery of better performance to prevent the injury that this type of accident causes.
Summary of the invention
The object of this invention is to provide a kind of batteries of electric automobile security protection system and method, electronlmobil is disconnected at the each battery module in battery pack that crashes or stop when uncharged.
The technical solution adopted in the present invention is: a kind of batteries of electric automobile security protection system, comprising: controller, acceleration pick-up, contactor drive circuit module, contact modules, battery charger, battery pack, load; Described contact modules comprises multiple contactless switchs, and battery pack comprises multiple battery modules; Described acceleration pick-up is connected with controller, controller is connected with contactor drive circuit module, contactor drive circuit module is connected with contact modules, battery charger is connected with controller, battery charger is connected with battery pack, battery pack is connected with load, it is characterized in that: controller can send a signal to contactor drive circuit module, and the multiple contactless switchs in contactor drive circuit module drive contact modules are disconnected or closure.
Further, multiple battery modules are connected mutually.
Further, between every two battery modules, be provided with a contactless switch.
Further, in the time inputting without control signal, described contactless switch is in normal off-state.
The invention also discloses the means of defence that a kind of batteries of electric automobile security protection system adopts, it is characterized in that: acceleration pick-up sends instantaneous acceleration signal to controller, battery charger sends charging equipment connection correct signal in the time preparing charging described controller, controller sends a signal to contactor drive circuit module, and the multiple contactless switchs in contactor drive circuit module drive contact modules disconnect or be closed.
Further, after charging equipment connects correctly, battery charger sends and connects correct signal to controller, controller receives and connects after correct signal, send contactless switch closure signal to contactor drive circuit module, multiple contactless switch closures in contactor drive circuit module drive contact modules, start charging; After charging finishes, controller sends contactless switch cut-off signal to contactor drive circuit module, and the multiple contactless switchs in contactor drive circuit module drive contact modules disconnect, and disconnect complete charge between battery module.
Further, controller receives after vehicle activation signal, and controller sends contactless switch closure signal, the multiple contactless switch closures in contactor drive circuit module drive contact modules, automobile starting to contactor drive circuit module; Controller receives after running car end signal, and controller sends contactless switch cut-off signal to contactor drive circuit module, and the multiple contactless switchs in contactor drive circuit module drive contact modules disconnect, and between battery module, disconnect.
Further, when electronlmobil crashes, pickup transient change value exceedes threshold value, and acceleration pick-up sends instantaneous acceleration signal to controller, if now controller lost efficacy, contactless switch normally open contact disconnects, and between battery module, disconnects; If controller can normally be worked, controller sends contactless switch cut-off signal to contactor drive circuit module, and the multiple contactless switchs in contactor drive circuit module drive contact modules disconnect, and between battery module, disconnect.
The beneficial effect that the present invention produces is: when can realizing at electronlmobil in parking uncharged state and crashing, between battery module, disconnect, prevent the potential safety hazard of bringing because of high potential.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of contact modules of the present invention;
Fig. 3 is the diagram of circuit of process of charging in the present invention;
Fig. 4 is the diagram of circuit of automobile normal running process in the present invention;
Fig. 5 is diagram of circuit when automobile crashes in the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1 has provided the batteries of electric automobile security protection system structural representation described in embodiment mono-, comprises controller 1, acceleration pick-up 2, contactor drive circuit module 3, contact modules 4, battery charger 5, battery pack 6, load 7.
Battery charger 5 is connected with battery pack 6, and accumulators group 6 is powered in process of charging, and battery pack 6 is connected with load 7, and powers to load 7 in the time of electric automobile during traveling.
Battery charger 5 is connected with controller 1, and sends charging equipment connection correct signal to controller 1 in the time preparing charging.
Acceleration pick-up 2 is connected with controller 1, and sends instantaneous acceleration signal to controller 1.
Controller 1 is connected with contactor drive circuit module 3, contactor drive circuit module 3 is connected with contact modules 4, controller 1 sends a signal to contactor drive circuit module 3, and contactor drive circuit module 3 drives the multiple contactless switchs 41 in contact modules 4 to disconnect or be closed.
As shown in Figure 2, multiple battery modules 61 that battery pack 6 comprises are connected, and the contactless switch 41 of connecting between every two battery modules 6, and while input without control signal, contactless switch 41 is in normal off-state.
Controller 1 is in the time electronlmobil being detected in parking uncharged state and crash, send a signal to contactor drive circuit module 3, contactor drive circuit module 3 drives the multiple contactless switchs 41 in contact modules 4 to disconnect, thereby disconnects between battery module 61.
As shown in Figure 3, the diagram of circuit of process of charging in batteries of electric automobile safety protecting method described in the embodiment of the present invention two, after charging equipment connects correctly, battery charger 5 sends connection correct signal to controller 1, controller 1 receives and connects after correct signal, send contactless switch closure signal to contactor drive circuit module 3, contactor drive circuit module 3 drives multiple contactless switchs 41 closures in contact modules 4, starts charging; After charging finishes, controller 1 sends contactless switch cut-off signal to contactor drive circuit module 3, and contactor drive circuit module 3 drives the multiple contactless switchs 41 in contact modules 4 to disconnect, and disconnects complete charge between battery module 61.
As shown in Figure 4, the diagram of circuit of automobile normal running process in batteries of electric automobile safety protecting method described in the embodiment of the present invention two, controller 1 receives after vehicle activation signal, controller 1 sends contactless switch closure signal to contactor drive circuit module 3, contactor drive circuit module 3 drives multiple contactless switchs 41 closures in contact modules 4, automobile starting; Controller 1 receives after running car end signal, and controller 1 sends contactless switch cut-off signal to contactor drive circuit module 3, and contactor drive circuit module 3 drives the multiple contactless switchs 41 in contact modules 4 to disconnect, and between battery module 61, disconnects.
As shown in Figure 5, diagram of circuit when automobile crashes in batteries of electric automobile safety protecting method described in the embodiment of the present invention two, when electronlmobil crashes, pickup transient change value exceedes threshold value, acceleration pick-up 2 sends instantaneous acceleration signal to controller 1, if now controller 1 lost efficacy, contactless switch 41 normally open contacts disconnect, and between battery module 61, disconnect; If controller 1 can normally be worked, controller 1 sends contactless switch cut-off signal to contactor drive circuit module 3, and contactor drive circuit module 3 drives the multiple contactless switchs 41 in contact modules 4 to disconnect, and between battery module 61, disconnects.
When above-described embodiment can be realized at electronlmobil in parking uncharged state and crash, between battery module 61, disconnect, prevent the potential safety hazard of bringing because of high potential.
Above-mentioned various scene is only preferably embodiment of the present invention, not the present invention is done to any pro forma restriction, and protection scope of the present invention is not limited to this.Any be familiar with those skilled in the art the present invention disclose technical scope in, make various distortion, supplement or replace all belong to protection scope of the present invention within.
Claims (8)
1. a batteries of electric automobile security protection system, comprising: controller (1), acceleration pick-up (2), contactor drive circuit module (3), contact modules (4), battery charger (5), battery pack (6), load (7), described contact modules (4) comprises multiple contactless switchs (41), and battery pack (6) comprises multiple battery modules (61), described acceleration pick-up (2) is connected with controller (1), controller (1) is connected with contactor drive circuit module (3), contactor drive circuit module (3) is connected with contact modules (4), battery charger (5) is connected with controller (1), battery charger (5) is connected with battery pack (6), battery pack (6) is connected with load (7), it is characterized in that: controller (1) can send a signal to contactor drive circuit module (3), make contactor drive circuit module (3) drive the multiple contactless switchs (41) in contact modules (4) to disconnect or closure.
2. a kind of batteries of electric automobile security protection system according to claim 1, is characterized in that: multiple battery modules (61) are connected mutually.
3. according to a kind of batteries of electric automobile security protection system described in claim 1 and 2, it is characterized in that: between every two battery modules (6), be provided with a contactless switch (41).
4. a kind of batteries of electric automobile security protection system according to claim 1, is characterized in that: in the time inputting without control signal, described contactless switch (41) is in normal off-state.
5. the means of defence adopting according to a kind of batteries of electric automobile security protection system described in claim 1 to 4, it is characterized in that: acceleration pick-up (2) sends instantaneous acceleration signal to controller (1), battery charger (5) sends charging equipment connection correct signal in the time preparing charging described controller (1), controller (1) sends a signal to contactor drive circuit module (3), and contactor drive circuit module (3) drives the multiple contactless switchs (41) in contact modules (4) to disconnect or be closed.
6. means of defence according to claim 5, it is characterized in that: after charging equipment connects correctly, battery charger (5) sends connection correct signal to controller (1), controller (1) receives and connects after correct signal, send contactless switch closure signal to contactor drive circuit module (3), contactor drive circuit module (3) drives multiple contactless switchs (41) closure in contact modules (4), starts charging; After charging finishes, controller (1) sends contactless switch cut-off signal to contactor drive circuit module (3), contactor drive circuit module (3) drives the multiple contactless switchs (41) in contact modules (4) to disconnect, and battery module disconnects between (61), complete charge.
7. means of defence according to claim 5, it is characterized in that: controller (1) receives after vehicle activation signal, controller (1) sends contactless switch closure signal to contactor drive circuit module (3), contactor drive circuit module (3) drives multiple contactless switchs (41) closure in contact modules (4), automobile starting; Controller (1) receives after running car end signal, controller (1) sends contactless switch cut-off signal to contactor drive circuit module (3), contactor drive circuit module (3) drives the multiple contactless switchs (41) in contact modules (4) to disconnect, and battery module disconnects between (61).
8. means of defence according to claim 5, it is characterized in that: when electronlmobil crashes, pickup transient change value exceedes threshold value, acceleration pick-up (2) sends instantaneous acceleration signal to controller (1), if now controller (1) lost efficacy, contactless switch (41) normally open contact disconnects, and battery module disconnects between (61); If controller (1) can normally be worked, controller (1) sends contactless switch cut-off signal to contactor drive circuit module (3), contactor drive circuit module (3) drives the multiple contactless switchs (41) in contact modules (4) to disconnect, and battery module disconnects between (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410294124.5A CN104108315A (en) | 2014-06-27 | 2014-06-27 | Electric automobile battery safety protection system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410294124.5A CN104108315A (en) | 2014-06-27 | 2014-06-27 | Electric automobile battery safety protection system and method |
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| Publication Number | Publication Date |
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| CN104108315A true CN104108315A (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410294124.5A Pending CN104108315A (en) | 2014-06-27 | 2014-06-27 | Electric automobile battery safety protection system and method |
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| CN (1) | CN104108315A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105857101A (en) * | 2016-03-31 | 2016-08-17 | 北京长城华冠汽车科技股份有限公司 | Cracking system and method for battery modules of electric automobile and electric automobile |
| CN110416464A (en) * | 2019-08-16 | 2019-11-05 | 深圳市雄韬锂电有限公司 | Power supply unit and electric car |
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| CN101740840A (en) * | 2010-02-25 | 2010-06-16 | 张禾 | Battery-powered management method for electric automobile |
| JP2010279224A (en) * | 2009-06-01 | 2010-12-09 | Toyota Motor Corp | Power supply apparatus and vehicle |
| CN102431457A (en) * | 2009-07-08 | 2012-05-02 | 奇瑞汽车股份有限公司 | Monitoring method of safety monitoring system of electric automobile |
| US20140159670A1 (en) * | 2012-12-10 | 2014-06-12 | Kia Motors Corporation | Power control apparatus for vehicle battery |
| CN203937521U (en) * | 2014-06-27 | 2014-11-12 | 三门峡速达交通节能科技股份有限公司 | A kind of batteries of electric automobile security protection system |
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2014
- 2014-06-27 CN CN201410294124.5A patent/CN104108315A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010279224A (en) * | 2009-06-01 | 2010-12-09 | Toyota Motor Corp | Power supply apparatus and vehicle |
| CN102431457A (en) * | 2009-07-08 | 2012-05-02 | 奇瑞汽车股份有限公司 | Monitoring method of safety monitoring system of electric automobile |
| CN101740840A (en) * | 2010-02-25 | 2010-06-16 | 张禾 | Battery-powered management method for electric automobile |
| US20140159670A1 (en) * | 2012-12-10 | 2014-06-12 | Kia Motors Corporation | Power control apparatus for vehicle battery |
| CN203937521U (en) * | 2014-06-27 | 2014-11-12 | 三门峡速达交通节能科技股份有限公司 | A kind of batteries of electric automobile security protection system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105857101A (en) * | 2016-03-31 | 2016-08-17 | 北京长城华冠汽车科技股份有限公司 | Cracking system and method for battery modules of electric automobile and electric automobile |
| CN110416464A (en) * | 2019-08-16 | 2019-11-05 | 深圳市雄韬锂电有限公司 | Power supply unit and electric car |
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Application publication date: 20141022 |
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| RJ01 | Rejection of invention patent application after publication |