CN108407964A - Electric vehicle safety guard and system - Google Patents
Electric vehicle safety guard and system Download PDFInfo
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- CN108407964A CN108407964A CN201810340640.5A CN201810340640A CN108407964A CN 108407964 A CN108407964 A CN 108407964A CN 201810340640 A CN201810340640 A CN 201810340640A CN 108407964 A CN108407964 A CN 108407964A
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- discharge
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- 238000001514 detection method Methods 0.000 claims abstract description 51
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 21
- 230000005611 electricity Effects 0.000 claims description 12
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 5
- 238000011084 recovery Methods 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 25
- 230000008569 process Effects 0.000 abstract description 22
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/80—Accessories, e.g. power sources; Arrangements thereof
- B62M6/90—Batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
- B60L58/14—Preventing excessive discharging
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention provides electric vehicle safety guard and systems, are related to vehicle technology field, wherein the electric vehicle safety guard includes：Charging detecting circuit, discharge detection circuit and control circuit, above-mentioned charging detecting circuit is connected with control circuit with discharge detection circuit, in use, control circuit is used for during Vehicular charging, the battery being loaded on vehicle is detected by charging detecting circuit, to effectively improve safety of the vehicle in charging process；Control circuit is additionally operable in vehicle traveling and parking period, the battery being loaded on vehicle is detected by discharge detection circuit, to effectively improve safety of the vehicle in discharge process, pass through being used cooperatively for charging detecting circuit and discharge detection circuit, it has ensured the safety of vehicle in use, has effectively prevented battery and catch fire caused by improper use the generation of phenomenon.
Description
Technical field
The present invention relates to vehicle technology field more particularly to electric vehicle safety guard and systems.
Background technology
In recent years, the application of electric bicycle is more and more extensive, the reason is that, electric bicycle is not only simple in structure, just
It is operated in user, moreover, lighter in weight, user drives light easy to operate.In addition, the speed of electric bicycle is suitable
Slowly, facilitate traveling on street quotient area and other places, price is relatively low, and user is willing to accept.In summary advantage, electric bicycle exist
China's both urban and rural area rapid proliferation becomes one of the main walking-replacing tool of broad masses' trip.
But with the increase of electric bicycle quantity in the market, electric bicycle safety accident is also frequently occurring.It is special
Be not the electrical problem of electric bicycle, i.e., electric bicycle park, charge and driving process in often will appear it is electrical therefore
Barrier, burns battery, even causes fire when serious, heavy losses are caused to people's lives and properties.
To sum up, effective solution method is there is no about the problem that can not ensure electric bicycle safety at present.
Invention content
In view of this, the embodiment of the present invention has been designed to provide electric vehicle safety guard and system, by setting
Charging detecting circuit, discharge detection circuit and control circuit are set, the safety of electric vehicle in use is improved.
In a first aspect, an embodiment of the present invention provides electric vehicle safety guards, including：Charging detecting circuit, electric discharge
Detection circuit and control circuit；
The charging detecting circuit is connected with the control circuit with the discharge detection circuit；
The control circuit is used for during Vehicular charging, by the charging detecting circuit to being loaded on vehicle
Battery be detected；
The control circuit is additionally operable in vehicle traveling and parking period, by the discharge detection circuit to loading
Battery on vehicle is detected.
With reference to first aspect, an embodiment of the present invention provides the first possible embodiments of first aspect, wherein institute
Stating charging detecting circuit includes：Charge port identification module, charge port state acquisition module and charge port break-make control module；
The charge port identification module, the charge port state acquisition module and the charge port break-make control module are successively
Be connected, the charge port break-make control module is also connected with the control circuit, the charge port identification module also with electricity
Pond anode is connected, and the charge port break-make control module is also connected with battery cathode；
The charge port identification module, for detecting whether charging plug is connected to the charge port socket of battery；
The charge port state acquisition module, for when charging plug is connected to the charge port socket of battery, acquisition to be filled
Electric current；
The charge port break-make control module, for when charging plug is connected to the charge port socket of battery, to described
Control circuit sends out charging and carries out signal；
The control circuit, for detecting whether charging current exceeds charge threshold, and, when the charging current exceeds institute
Charging termination signal is generated when stating charge threshold；
The charge port break-make control module is additionally operable to, when receiving the charging termination signal, disconnect the charging
Connection between mouth identification module and battery cathode.
With reference to first aspect, an embodiment of the present invention provides second of possible embodiments of first aspect, wherein institute
Stating discharge detection circuit includes：Discharge condition acquisition module, electric discharge break-make control module and motor drive module；
The discharge condition acquisition module, the electric discharge break-make control module and the motor drive module are sequentially connected
It connects, the discharge condition acquisition module is also connected with battery cathode, and the motor drive module is also connected with anode；
The motor drive module, for providing discharge current for the motor of vehicle, so that vehicle movement；
The discharge condition acquisition module, for acquiring the discharge current, and, the discharge current is sent to described
Control circuit；
The control circuit, for detecting whether discharge current exceeds discharge threshold, and, when the discharge current exceeds institute
Discharge off signal is generated when stating discharge threshold；
The electric discharge break-make control module, for when receiving the discharge off signal, disconnecting anode and electricity
Connection between the cathode of pond.
With reference to first aspect, an embodiment of the present invention provides the third possible embodiments of first aspect, wherein also
Including auxiliary power module, one end of the auxiliary power module is connected with anode, the auxiliary power module it is another
One end is connected with battery cathode；
The auxiliary power module is converted the voltage of anode twice, respectively obtains first voltage and the second electricity
Pressure, and, the first voltage is that the driving of switching device is powered, and the second voltage is powered for the control circuit.
With reference to first aspect, an embodiment of the present invention provides the 4th kind of possible embodiments of first aspect, wherein also
Including battery temperature detection module, the battery temperature detection module is used to acquire the temperature signal of battery, and, by the temperature
Signal is sent to the control circuit；
The control circuit, for generating heat alarm when the temperature signal exceeds temperature threshold.
With reference to first aspect, an embodiment of the present invention provides the 5th kind of possible embodiments of first aspect, wherein also
Forbid running module including charging, it includes the forbidden resistance being sequentially connected and forbidden triode that running module is forbidden in the charging,
When the control circuit detects that charging plug is connected to the charge port socket of battery, generates charging and forbid train signal, institute
Stating charging forbids train signal to send electric machine controller to after the forbidden resistance and the forbidden triode, so that at vehicle
In brake or lock motor status.
With reference to first aspect, an embodiment of the present invention provides the 6th kind of possible embodiments of second aspect, wherein also
Including the detection module that stops, the parking detection module disconnects anode and electricity when the speed for detecting vehicle is equal to zero
Connection between the cathode of pond, choked flow self-recovery fuse are powered for alarm.
The 5th kind of possible embodiment with reference to first aspect, an embodiment of the present invention provides the 7th kind of first aspect
Possible embodiment, wherein further include the overtime detection module of charging, the overtime detection module of the charging and the charge port are logical
Disconnected control module is connected；
The overtime detection module of the charging, generates when exceeding charge threshold for the charging duration in the charging current and fills
Electric stop signal；
The charge port break-make control module is known for disconnecting the charge port under the control of the charging stop signal
Other connection between module and battery cathode.
With reference to first aspect, an embodiment of the present invention provides the 8th kind of possible embodiments of first aspect, wherein also
Including circuit selftest module, the circuit selftest module, for being detected to circuit when receiving external trigger.
Second aspect, an embodiment of the present invention provides electric vehicle safety systems, including：Metal battery box, accumulator
With electric vehicle safety guard as described in any one of the above embodiments；
The accumulator is connected with the electric vehicle safety guard；
The electric vehicle safety guard, is detected for the use state to the accumulator；
The accumulator and the electric vehicle safety guard are both placed in inside the metal battery box；
The metal battery box, for the accumulator and the electric vehicle safety guard to be limited in the metal
In the space of battery inside, and, it is that the accumulator and the electric vehicle safety guard completely cut off outside metal battery box
Air.
Electric vehicle safety guard provided in an embodiment of the present invention and system, wherein the electric vehicle safety guard
Including：Charging detecting circuit, discharge detection circuit and control circuit, also, above-mentioned charging detecting circuit and discharge detection circuit
It is connected with control circuit, in use, control circuit is used for during Vehicular charging, passes through charging detecting circuit
The battery being loaded on vehicle is detected, when charging current exceeds charge threshold, to terminate charging process in time, is controlled
Circuit processed is additionally operable in vehicle traveling and parking period, is examined to the battery being loaded on vehicle by discharge detection circuit
It surveys, it, being capable of effective guarantee by above-mentioned processing procedure when discharge current exceeds discharge threshold, to terminate discharge process in time
Safety of vehicle during charging and discharging.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and is obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 shows the connection figure for the electric vehicle safety guard that the embodiment of the present invention is provided；
Fig. 2 shows the structure connection figures for the electric vehicle safety guard that the embodiment of the present invention is provided；
Fig. 3 shows the structural framing figure for the electric vehicle safety guard that the embodiment of the present invention is provided；
Fig. 4 shows the circuit connection of control circuit in the electric vehicle safety guard that the embodiment of the present invention is provided
Figure；
Fig. 5 shows that the circuit of charging detecting circuit in the electric vehicle safety guard that the embodiment of the present invention is provided connects
Map interlinking；
Fig. 6 shows that the circuit of discharge detection circuit in the electric vehicle safety guard that the embodiment of the present invention is provided connects
Map interlinking.
Icon：1- charging detecting circuits；2- control circuits；3- discharge detection circuits；11- charge port identification modules；12- fills
Power port state acquisition module；13- charge port break-make control modules；31- discharge condition acquisition modules；32- electric discharge break-makes control mould
Block；33- motor drive modules.
Specific implementation mode
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, the detailed description of the embodiment of the present invention to providing in the accompanying drawings is not intended to limit claimed invention below
Range, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment of the present invention, those skilled in the art are not doing
The every other embodiment obtained under the premise of going out creative work, shall fall within the protection scope of the present invention.
With the popularization of clean energy resource, electricity consumption vehicle (electric bicycle, electric motorcycle, electric vehicle etc.) is more and more general
And especially electric bicycle quantity sharply increases, correspondingly, the safety accident of electric bicycle is also frequently occurring, it is common
, electric bicycle park, charge and driving process in often will appear electric fault, burn battery, when serious even draw
Ignition calamity.
Based on this, an embodiment of the present invention provides electric vehicle safety guard and systems, are carried out below by embodiment
Description.
Embodiment 1
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the electric vehicle safety guard that the present embodiment proposes specifically wraps
It includes：Charging detecting circuit 1, discharge detection circuit 3 and control circuit 2, also, charging detecting circuit and discharge detection circuit and
Control circuit is connected.In implementation process, control circuit is used for during Vehicular charging, by charging detecting circuit to dress
The battery being loaded on vehicle is detected, and to monitor the safety of charging process in real time, control circuit is additionally operable in vehicle row
It sails in parking period, the battery being loaded on vehicle is detected by discharge detection circuit, to monitor electric discharge in real time
The safety of process, i.e. charging detecting circuit and discharge detection circuit are used in combination with control circuit, in real time to vehicle
Electricity consumption situation be monitored.
Above-mentioned charging detecting circuit specifically includes charge port identification module 11, charge port state acquisition module 12 and charge port
Break-make control module 13.Connection relation between above-mentioned modules is as follows：Charge port identification module, charge port state acquisition mould
Block and charge port break-make control module are sequentially connected and connect, also, charge port break-make control module is also connected with control circuit, fills
Power port identification module is also connected with anode, and charge port break-make control module is also connected with battery cathode, i.e., battery is being just
Charge port identification module, charge port state acquisition module and charge port break-make control mould have been sequentially connected in series between pole and battery cathode
Block.
In charging process, realized to charging plug and the whether matched detection of charge port socket, i.e. charge port first
Identification module needs to illustrate, in general, charging for detecting whether charging plug is connected to the charge port socket of battery
Plug and charge port socket are three feet (anode, cathode and hanging pole).It is that charge port state acquisition module is used to fill later
When plug is connected to the charge port socket of battery, i.e. after each foot of charging plug and charge port socket is all correspondingly connected with,
The charging current on connected loop is acquired, is that control circuit is used to detect whether charging current to exceed charge threshold later,
This needs illustrates, and above-mentioned charge threshold is permitted maximum electric in the case of entire vehicle safety in charging process
Stream, also, when charging current exceeds charge threshold, control circuit generates charging termination signal, in this way, charge port break-make controls
Module is used for when receiving charging termination signal, is disconnected the connection between charge port identification module and battery cathode, that is, is passed through
What is connected between charge port identification module and battery cathode disconnects to realize the connection between anode and battery cathode, in turn
Stopping continues to charge to battery, to ensure that the safety of charging process.
In addition, above-mentioned charge port break-make control module can when charging plug is connected to the charge port socket of battery, to
Control circuit sends out charging and carries out signal, that is, informs that battery is in charged state to control circuit this moment, in some embodiments,
The charged state further can externally be shown by the device of the display screen of vehicle, consequently facilitating people check the feelings of vehicle
Condition.
Above-mentioned discharge detection circuit specifically includes discharge condition acquisition module 31, electric discharge break-make control module 32 and motor and drives
Dynamic model block 33, above-mentioned discharge condition acquisition module, electric discharge break-make control module and motor drive module are sequentially connected and connect, also,
Discharge condition acquisition module is also connected with battery cathode, and motor drive module is also connected with anode, i.e., battery just
It is connected with motor drive module, electric discharge break-make control module and discharge condition acquisition module between pole and battery cathode in turn.
During use, motor drive module is used to provide discharge current for the motor of vehicle, i.e. discharge current is flowed to by anode
Discharge current is supplied to the motor of vehicle by motor drive module later, so that vehicle is moved by the operating of motor, and by
Discharge current is sent to control circuit by discharge condition acquisition module to acquire discharge current, in this way, control circuit is used
Whether exceed discharge threshold in detection discharge current, needs to illustrate, above-mentioned discharge threshold is institute's energy in discharge loop
The maximum value of the discharge current born, also, when detecting that discharge current exceeds discharge threshold, control circuit generates electric discharge eventually
Stop signal disconnects motor drive module and battery in this way, electric discharge break-make control module is used for when receiving discharge off signal
Connection between anode, and then the connection between anode and battery cathode is disconnected, the discharge process of battery is terminated, is effectively kept away
Exempt to continue to discharge when discharge process exception to occur the phenomenon that damaging vehicle.
In addition, the electric vehicle safety guard further includes auxiliary power module, one end of auxiliary power module and battery
Anode is connected, and the other end of auxiliary power module is connected with battery cathode, i.e., auxiliary power module is to be connected to battery two
Another circuit at end.Auxiliary power module is converted the voltage of anode twice, i.e., is divided twice, respectively
It to first voltage and second voltage, needs to illustrate, first voltage is usually 9V to 12V, and second voltage is usually
3.3V or 5V also, the driving power supply that first voltage is switching device, second voltage in order to control power by circuit, it should be noted that
MCU and peripheral auxiliary circuits in control circuit are powered by second voltage.
In addition, the electric vehicle safety guard further includes battery temperature detection module, and during use, battery temperature inspection
It surveys module and is used to acquire the temperature signal of battery, also, collected temperature signal is sent to control circuit and is handled, it
Afterwards, control circuit is used to generate heat alarm when temperature signal exceeds temperature threshold, to warn user to repair
Deng.Specific component is configured to：Battery temperature detection module includes thermistor socket, thermistor plug and temperature-sensitive electricity
Resistance, wherein one end of thermistor socket is grounded, and the other end of thermistor socket connects second voltage, thermistor plug
It is connected into closed circuit with thermistor, it, i.e., will when needing to carry out battery temperature detection when thermistor is fitted on battery
Thermistor is plugged on thermistor socket, convenient, flexible, in this way, when the temperature signal that thermistor collects battery exceeds
Heat alarm is generated when temperature threshold, to play forewarning function, avoids the excessively high caused battery of battery temperature even
Vehicle catches fire the generation of phenomenon.
In addition, the electric vehicle safety guard, which further includes charging, forbids running module, forbid running module in the charging
Including the forbidden resistance being sequentially connected and forbidden triode, in use, when control circuit detects charging plug and electricity
When the charge port socket connection in pond, i.e., charging plug is inserted on electric vehicle after charging starts, and control circuit generates charging and forbids going
Vehicle signal, the charging forbid train signal to be exported by connecting terminal after the amplification of forbidden triode, i.e. charging forbids driving to believe
Number electric machine controller is sent to after forbidden resistance and forbidden triode, so that vehicle is in and brakes or lock motor status, into one
Step limits the possibility that the vehicle of charging is ridden in the charge state, that is, has reached opening power lock under charged state and also can
The purpose of driving, to further enhance the safety of vehicle.
In addition, the electric vehicle safety guard further includes parking detection module, parking detection module is detecting vehicle
Speed when being equal to zero, disconnect the connection between anode and battery cathode, parking detection module includes that choked flow self- recoverage is protected
Dangerous silk, choked flow self-recovery fuse are connected with above-mentioned fault detection module, and when in use, choked flow self-recovery fuse can be anti-
Device power supply is stolen, in this way, even if when the connection between anode and battery cathode disconnects, the circuit where alarm still is able to
There is low current to be powered.
In addition, the electric vehicle safety guard further includes the overtime detection module of charging, charge overtime detection module with fill
Power port break-make control module is connected, and when in use, the overtime detection module that charges is used to exceed in the charging duration of charging current
Charging stop signal is generated when charge threshold, needs to illustrate, and above-mentioned charge threshold allows for preset battery
The maximum time of charging, in general, charge threshold is related to the capacity of battery, in this way, charge port break-make control module is for filling
The connection between charge port identification module and battery cathode is disconnected under the control of electric stop signal, in anode and battery
Open circuit is formed between cathode, terminates entire charging process.
In addition, the electric vehicle safety guard further includes circuit selftest module, circuit selftest module is receiving outside
Circuit is detected when triggering, i.e., before the implementation Process such as battery charging, electric discharge, when user triggers above-mentioned circuit self-test
When module, whether circuit selftest module, which can leak electricity to circuit, damage, etc. is detected, if it find that any of the above-described problem, i.e., can
Fault-signal is generated, informs that extraneous user carries out vehicle maintenance in time.
In conclusion electric vehicle safety guard provided in this embodiment includes：Charging detecting circuit, discharge examination electricity
Road and control circuit, charging detecting circuit and electric vehicle safety guard are connected with control circuit, and control circuit is used for
During Vehicular charging, the battery being loaded on vehicle is detected by charging detecting circuit, control circuit is additionally operable to
In vehicle traveling and parking period, the battery being loaded on vehicle is detected by electric vehicle safety guard.
During use, control circuit is used for during Vehicular charging, by charging detecting circuit to the battery that is loaded on vehicle
It is detected, when charging current exceeds charge threshold, to terminate charging process in time, control circuit is additionally operable in vehicle row
It sails in parking period, the battery being loaded on vehicle is detected by discharge detection circuit, it is super to work as discharge current
When going out discharge threshold, terminate discharge process in time, by above-mentioned processing procedure can effective guarantee vehicle be charged and discharged
Safety in journey.
Embodiment 2
Present embodiments providing charging detecting system includes：Metal battery box, accumulator and the charging such as any of the above-described
Detection circuit, accumulator are connected with charging detecting circuit, and in use, charging detecting circuit is for making accumulator
It is detected with state, also, accumulator and charging detecting circuit are both placed in the inside of above-mentioned metal battery box, in this way, golden
Belong to battery case accumulator and charging detecting circuit can be limited in the space inside metal battery box, in addition to the storage for vehicle
Battery and charging detecting circuit block extraneous dust and rainwater etc., additionally it is possible to completely cut off metal for accumulator and charging detecting circuit
Air outside battery case, once there is electric fault in battery etc. in charging process, after charging detecting circuit burns or catches fire,
Metal battery box can close accumulator and charging detecting circuit wherein, and accumulator is limited by way of starvation
Continue to continue with the failure of charging detecting circuit, to ensure the safety of entire vehicle, needs to illustrate, it is above-mentioned
Accumulator could alternatively be lead-acid battery or lithium battery.
In conclusion charging detecting system provided in this embodiment includes：Metal battery box, accumulator and as any of the above-described
The charging detecting circuit of item, above-mentioned accumulator are connected with charging detecting circuit, and in use, charging detecting circuit is used for
The use state of accumulator is detected, accumulator and charging detecting circuit are both placed in inside metal battery box, metal electricity
Pond box is used for accumulator and charging detecting circuit being limited in the space inside metal battery box, also, metal battery box energy
Enough it is the air outside accumulator and charging detecting circuit isolation metal battery box, to further ensure that entire vehicle is filling
Safety in electric process.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
Specific work process, can refer to previous embodiment in corresponding process, details are not described herein.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation " " is connected
Connect ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected and connect, can also connect indirectly connected through an intermediary, it can
To be the connection inside two elements.To those skilled in the art, above-mentioned term can be understood in this hair with concrete condition
Concrete meaning in bright.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
Finally it should be noted that：Embodiment described above, only specific implementation mode of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：Any one skilled in the art
In the technical scope disclosed by the present invention, it can still modify to the technical solution recorded in previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. electric vehicle safety guard, which is characterized in that including：Charging detecting circuit, discharge detection circuit and control circuit；
The charging detecting circuit is connected with the control circuit with the discharge detection circuit；
The control circuit, for during Vehicular charging, by the charging detecting circuit to the electricity that is loaded on vehicle
Pond is detected；
The control circuit is additionally operable in vehicle traveling and parking period, by the discharge detection circuit to being loaded in vehicle
Battery on is detected.
2. electric vehicle safety guard according to claim 1, which is characterized in that the charging detecting circuit includes：
Charge port identification module, charge port state acquisition module and charge port break-make control module；
The charge port identification module, the charge port state acquisition module and the charge port break-make control module are sequentially connected
Connect, the charge port break-make control module is also connected with the control circuit, the charge port identification module also with battery just
Pole is connected, and the charge port break-make control module is also connected with battery cathode；
The charge port identification module, for detecting whether charging plug is connected to the charge port socket of battery；
The charge port state acquisition module, for when charging plug is connected to the charge port socket of battery, acquisition charging to be electric
Stream；
The charge port break-make control module is used for when charging plug is connected to the charge port socket of battery, to the control
Circuit sends out charging and carries out signal；
The control circuit, for detecting whether charging current exceeds charge threshold, and, when the charging current is filled beyond described
Charging termination signal is generated when electric threshold value；
The charge port break-make control module is additionally operable to when receiving the charging termination signal, is disconnected the charge port and is known
Other connection between module and battery cathode.
3. electric vehicle safety guard according to claim 1, which is characterized in that the discharge detection circuit includes：
Discharge condition acquisition module, electric discharge break-make control module and motor drive module；
The discharge condition acquisition module, the electric discharge break-make control module and the motor drive module are sequentially connected and connect, institute
It states discharge condition acquisition module to be also connected with battery cathode, the motor drive module is also connected with anode；
The motor drive module, for providing discharge current for the motor of vehicle, so that vehicle movement；
The discharge condition acquisition module, for acquiring the discharge current, and, the discharge current is sent to the control
Circuit；
The control circuit, for detecting whether discharge current exceeds discharge threshold, and, when the discharge current is put beyond described
Discharge off signal is generated when electric threshold value；
The electric discharge break-make control module, it is negative for when receiving the discharge off signal, disconnecting anode and battery
Connection between pole.
4. electric vehicle safety guard according to claim 1, which is characterized in that further include auxiliary power module, institute
The one end for stating auxiliary power module is connected with anode, and the other end of the auxiliary power module is connected with battery cathode
It connects；
The auxiliary power module is converted the voltage of anode twice, respectively obtains first voltage and second voltage,
And the driving that the first voltage is switching device is powered, the second voltage is powered for the control circuit.
5. electric vehicle safety guard according to claim 1, which is characterized in that further include battery temperature detection mould
Block, the battery temperature detection module are used to acquire the temperature signal of battery, and, the temperature signal is sent to the control
Circuit；
The control circuit, for generating heat alarm when the temperature signal exceeds temperature threshold.
6. electric vehicle safety guard according to claim 1, which is characterized in that further include that mould of driving a vehicle is forbidden in charging
Block, it includes the forbidden resistance being sequentially connected and forbidden triode that running module is forbidden in the charging, when the control circuit detects
When being connected to charging plug with the charge port socket of battery, generates charging and train signal, the charging is forbidden to forbid train signal
Electric machine controller is sent to after the forbidden resistance and the forbidden triode, so that vehicle, which is in, brakes or lock motor shape
State.
7. electric vehicle safety guard according to claim 1, which is characterized in that further include parking detection module, institute
Parking detection module is stated when the speed for detecting vehicle is equal to zero, disconnects the connection between anode and battery cathode, resistance
Self-recovery fuse is flowed to power for alarm.
8. electric vehicle safety guard according to claim 6, which is characterized in that further include charging time-out detection mould
Block, the overtime detection module of the charging are connected with the charge port break-make control module；
The charging overtime detection module generates charging and stops when exceeding charge threshold for the charging duration in the charging current
Stop signal；
The charge port break-make control module identifies mould for disconnecting the charge port under the control of the charging stop signal
Connection between block and battery cathode.
9. electric vehicle safety guard according to claim 1, which is characterized in that further include circuit selftest module, institute
Circuit selftest module is stated, for being detected to circuit when receiving external trigger.
10. electric vehicle safety system, which is characterized in that including：Metal battery box, accumulator and such as claim 1-9
Electric vehicle safety guard described in one；
The accumulator is connected with the electric vehicle safety guard；
The electric vehicle safety guard, is detected for the use state to the accumulator；
The accumulator and the electric vehicle safety guard are both placed in inside the metal battery box；
The metal battery box, for the accumulator and the electric vehicle safety guard to be limited in the metal battery
In space inside box, and, it is the sky outside the accumulator and electric vehicle safety guard isolation metal battery box
Gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810340640.5A CN108407964A (en) | 2018-04-16 | 2018-04-16 | Electric vehicle safety guard and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810340640.5A CN108407964A (en) | 2018-04-16 | 2018-04-16 | Electric vehicle safety guard and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108407964A true CN108407964A (en) | 2018-08-17 |
Family
ID=63135608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810340640.5A Pending CN108407964A (en) | 2018-04-16 | 2018-04-16 | Electric vehicle safety guard and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108407964A (en) |
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| CN112428841A (en) * | 2020-12-04 | 2021-03-02 | 安徽江淮汽车集团股份有限公司 | Vehicle-mounted charging system and method |
| CN112910044A (en) * | 2021-02-25 | 2021-06-04 | 天津爱玛车业科技有限公司 | Electric vehicle protection circuit and electric vehicle |
| CN113561810A (en) * | 2021-07-28 | 2021-10-29 | 雅迪科技集团有限公司 | Charging port power-off protection device and electric vehicle |
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Application publication date: 20180817 |