CN106877279B - The method and system of redundant circuit disconnection for electric vehicle, the vehicle with redundancy battery protection - Google Patents
The method and system of redundant circuit disconnection for electric vehicle, the vehicle with redundancy battery protection Download PDFInfo
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- CN106877279B CN106877279B CN201710056740.0A CN201710056740A CN106877279B CN 106877279 B CN106877279 B CN 106877279B CN 201710056740 A CN201710056740 A CN 201710056740A CN 106877279 B CN106877279 B CN 106877279B
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- resistance metal
- metal fuse
- inductor
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- battery
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/085—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current making use of a thermal sensor, e.g. thermistor, heated by the excess current
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Abstract
Disclose the system and method disconnected for the redundant circuit in electric vehicle.System may include connected in circuit for battery or other resistance metal fuse, include around the longitudinal axis at least inductor of a circle wire coil and be configured for providing the AC power supplies of alternating current across the inductor.The resistance metal fuse can be arranged in the inductor along the longitudinal axis, and the AC power supplies is configured for the eddy current for causing the inductor to generate at least part of size that is enough to melt or vaporize the resistance metal fuse being arranged in it in the resistance metal fuse.
Description
Technical field
This disclosure relates to vehicle battery system, and more particularly relate to provide redundancy by induction fever fuse
Battery disconnects the system and method for protection, the vehicle with redundancy battery protection.
Background technique
Electric vehicle battery is usually protected by the magnetic contactor for allowing to disconnect battery circuit if necessary.In some battery systems
In system, two contactors can be provided in series to provide redundancy, if so that a contactor be allowed to be soldered or with other
Mode is stuck in on-position then disconnecting circuit.
Summary of the invention
The system and method for the disclosure respectively has several novel aspects, and any single aspect in terms of these should be not single
The attribute being solely desired for is responsible for.Range expressed by the appended claims is unrestricted, will more be briefly discussed now
More significant feature.
In one embodiment, a kind of redundancy disconnection system applied in circuit is described.The system comprises switches.
The system may further include in the circuit with it is described switch be connected in series resistance metal fuse and including
Around the inductor of an at least circle wire coil for the longitudinal axis.The system can also include being configured for mentioning across the inductor
For the AC power supplies of alternating current.The resistance metal fuse can be arranged in the inductor along the longitudinal axis, and
And the AC power supplies is configured for the inductor is caused to generate in the resistance metal fuse being enough to melt
Change or vaporize the resistance metal fuse at least part of size eddy current.
In another embodiment, a kind of redundancy disconnection method applied in circuit is described.The method can wrap
It includes: the switch connected in the circuit is provided；The resistance metal being connected in series in the circuit with the switch is provided to protect
Dangerous silk；And offer includes the inductor of at least circle wire coil around the longitudinal axis.The method may further include: instruction
The switch disconnects the circuit；Detect that the switch disconnects the circuit failure；And applies to the inductor and exchange
Electric current.To the inductor apply the alternating current can be generated in the resistance metal fuse be enough to melt or
Vaporize the eddy current of at least part of size of the resistance metal fuse.
In another embodiment, a kind of vehicle with redundancy battery protection is described.The vehicle includes at least one
A circuit, at least one battery connected in the circuit and in the circuit with the battery be connected in series open
It closes.The vehicle can also include that the resistance metal being connected in series in the circuit with the battery and the switch insures
Silk, include around the longitudinal axis at least inductor of a circle wire coil and be configured for across the inductor provide alternating current
The AC power supplies of stream.The resistance metal fuse can be arranged in the inductor along the longitudinal axis, and the AC
Power supply is configured for the inductor is caused to generate in the resistance metal fuse being enough to melt or vaporize
The eddy current of at least part of size of the resistance metal fuse.
Detailed description of the invention
Now by conjunction with various implementations describe with reference to the accompanying drawings this technology above-mentioned aspect and other features, aspect and
Advantage.Shown implementation is only example and is not intended to be restrictive.Through attached drawing, similar symbol is usually indicated
Similar component, unless context otherwise indicates.
Fig. 1 is the circuit diagram of the redundancy disconnection system in the simple battery circuit described accoding to exemplary embodiment.
Fig. 2 is that multiple redundancies in the more string electric vehicle battery circuits described accoding to exemplary embodiment disconnect system
The circuit diagram of example arrangement.
Fig. 3 describes the induction heating fusible safe silk for disconnecting system for redundant circuit accoding to exemplary embodiment and sets
Standby detail view.
Fig. 4 is the flow chart described the redundancy for circuit accoding to exemplary embodiment and disconnect method.
Specific embodiment
The certain implementations for being directed to the novel aspects of the description disclosure are described below.However, those skilled in the art
Member will readily appreciate that teaching herein can be according to many different mode applications.Described implementation can be in office
What realized in circuit.In some implementations, word " battery (battery) " or " battery (batteries) " will be used to retouch
State embodiment described herein certain elements.It should be noted that " battery (battery) " not necessarily refers to only single battery list
Member.But it is described as " battery (battery) " or is shown as any element of the single battery in circuit diagram in the accompanying drawings
Can be equally made of any greater amount of single battery unit, without departing from disclosed system and method spirit or
Range.
Fig. 1 is the circuit of the redundancy off device 100 in the simple battery circuit 102 described accoding to exemplary embodiment
Figure.In some embodiments, circuit 102 may include at least one battery 104 and main decoupler 106, such as magnetic contactor or
The electric switch for capableing of off and on circuit of any other type.In some embodiments, battery circuit can be wrapped further
Include motor 108.Motor 108 may include the combination or any other class of DC motor, AC motor and power inverter
Type can be from the motor or electric motor system of DC circuit draws power.
Contactor or other electric switches 106 are susceptible to random failure, such as welding or other mechanical breakdowns.This failure
It can prevent the switch 106 or its switch 106 that can prevent to disconnect connection of on-off.When the connection of switch 106 and machinery
When failure prevents to disconnect switch 106, redundancy off device 100 being capable of interrupt circuit 102.
Referring to Fig. 3, redundancy off device 100 may include resistance metal fuse 110 in greater detail.Insurance
Silk 100 can be disposed in wire coil 112, which can be electric with fuse 110 and DC circuit 102 and/or be thermally isolated.
As described below, fuse, which can have, is enough at least to carry routinely during the normal operating of DC battery circuit 102
Flow through the rated current of the DC circuit of fuse 110.The both ends of wire coil 112 can be connected across AC power supplies 114, the AC power supplies
It is configured for generating alternating current in the electric wire of coil 112.As will be described below, AC power supplies can generate tool
There is the alternating current for the size for being enough to incude the eddy current for melting or vaporizing fuse 110 enough.
In some embodiments, fuse 110 can be connected in series in DC circuit 102 at least one battery 104,
So that there is no the closed circuit paths of bypass fuse 110 at least one battery 104.Therefore, in AC power supplies
114 are activated and after fuse 110 melted or vaporized, and DC battery circuit 102 disconnects, because electric current is no longer able to flow
Cross fuse 110.
Fig. 2 is that multiple redundancies in the more string electric vehicle battery circuits 200 described accoding to exemplary embodiment disconnect system
The circuit diagram of the example arrangement of system 202.More string electric vehicle battery circuits 200 may include at least one motor 204.It is electronic
Machine 204 can be any kind of motor that power can be drawn from DC battery circuit, such as DC motor or AC motor
With the combination of power inverter.In some embodiments, motor 204 may include one or more of electric vehicle powertrain
A motor may include the motor for being configured for unpowered systems function.
In various embodiments, battery system 200 may include single battery 206 or multiple batteries 206.In some implementations
Example in, six or more batteries 206 may include in battery circuit 200 with to motor 204 provide a large amount of power or
One or more battery 206 damage, electric leakage, failure or otherwise can not safely to motor provide power the case where
Lower offer redundancy.In some embodiments, multiple batteries 206 can be arranged in the string 208 that can switch respectively.Each battery
String 208 may include at least one battery 206 and for from the electric current in battery circuit remove at least one battery 206 to
A few switch 210.Switch 210 can be any equipment for capableing of disconnecting circuit.For example, in some embodiments, switch 210
It can be magnetic contactor or mechanically operated switch.In some embodiments, any amount of switch 210 can be by battery management
System, string management system are configured for controlling or protect the other kinds of computer equipment of battery circuit 200 automatic
Ground actuating.
In the complicated battery circuit 200 of multiple strings 208 for including battery 206, switch 201 can not be by desired
Operation can lead to serious damage risk.When battery 206 be can for electric vehicle powertrain power supply high-tension battery when,
This risk can be especially high.According to mistake sequence battery strings 208 engages with main battery circuit 200, engage include damage or
The string 208 of fail battery 206 allows battery strings 208 when that should disconnect for any safety or performance related causes still in electricity
Connection can cause motor 204 or other batteries 206 to damage in pond circuit 200.This situation part can also cause electric vehicle
Other component damage and the occupant that can even cause vehicle or neighbouring people by actual bodily harm, because of serious battery
Failure can lead to fire or explosion.
It can be by including the redundancy off device 202 being connected in series with switch 210 and battery 206 in each string 208
Risk relevant to 210 failure of switch in battery strings 208 is reduced significantly.Various types of redundancy disconnections can be used to set
Standby 202.In some embodiments, redundancy off device 202 can be contactor.However, additional contactor can very greatly simultaneously
And increase cost, if vehicle includes multiple battery circuits, vehicle can be increased by providing two contactors in battery circuit
Significant weight and cost.In addition, the benefit in battery circuit including second contactor is relatively small, because of second contactor
It is susceptible to welding or other failures like that also like the first contactor in circuit.
In some embodiments, redundancy off device 202 can be above by reference to Fig. 1 and the sense described referring to Fig. 3
Answer the Cutoff Device of fusible.If redundancy off device 202 is the fuse for incuding fusible, required AC electric current can be with
From multiple possible sources.In some embodiments, each off device 202 can have the AC power supplies of their own.Some
In embodiment, off device 202 can draw AC power from single source.Single AC power supplies, which can be to motor 204, provides AC
The inverter of electric current, the inverter for being coupled to other high-tension battery strings 208, be coupled to for other Vehicular systems separation more
The inverter of low-tension supply, the AC induction conductivity for being configured for regenerative braking can be located at any in electric vehicle
Other AC power supplies.
Fig. 3 describes the sectional view of induction heating fusible safe silk equipment 300 accoding to exemplary embodiment.In some realities
It applies in example, equipment 300 may include center resistance metal fuse 302.Center resistance metal fuse 302 can be in battery electricity
It is connected in road, so that electric current can flow through resistance metal fuse 302 during the routine operation of battery circuit.Therefore,
Resistance metal fuse 302 should have the conventional electricity occurred during the routine operation for being high enough at least be carried on battery circuit
The rated current of stream 302.
Resistance metal fuse 302 can be arranged along the longitudinal axis 304 of wire coil 306.In some embodiments, electric wire
Coil 306 may include single turn electric wire.In other embodiments, wire coil 306 may include two circles or more, up to several
Ten circles, circle up to a hundred or thousands of circles.Coil 306 may include can be conductive any metal made of electric wire.In some implementations
In example, coil 306 can be made of copper wire.In some embodiments, coil 306 can be around the reality being formed of an electrically insulating material
Core insulation device 308 is wound.For example, in some embodiments, insulator 308 can be made of ceramic.In some embodiments, absolutely
Edge device 308 may include plastics, glass or any other electrically insulating material.In some embodiments, insulator 308 can be by same
When electrical isolation and the material of thermal insulation be made.In some embodiments, insulator 308 may be at around resistance metal fuse
The form of 302 hollow pipe.Insulator 308 can surround resistance metal fuse 302.In other embodiments, air gap 310 can
To be disposed between insulator 308 and resistance metal fuse 302.Air gap 310 can by allow exist dissipate melt or
The space of material that at least part of vaporization resistance metal fuse 302 is discharged improves the function of equipment 300.
When desired fuse wire 302, alternating current can be applied to wire coil 306 by AC power supplies 312.Work as change
When the electric current of change such as standard sine alternating current flows through the coil of a circle electric wire or multiturn electric wire, generation flows through the circle electric wire
Magnetic field.In the case where wire coil 306 is made of multiturn electric wire, the electric current in each circle is added to be generated in coil 306
Total magnetic field.Because alternating current sinusoidally changes on size and Orientation, magnetic field will not be constant but will also sinusoidally
With time change.Therefore, it if resistance metal fuse 302 is disposed in wire coil 306 along its longitudinal axis 304, protects
Dangerous silk 302 will be exposed to the magnetic field oriented along the longitudinal axis 304.However, the size in this magnetic field will consistently change.
In general, conductive material experience time-varying magnetic field is made to induce eddy current in conductive material.Eddy current due to inductance
The associated electric field of time-varying magnetic field in device and occur naturally.Eddy current flowed in the plane perpendicular to magnetic field and usually
Closed current loop into those vertical planes works like that.Therefore, when resistance metal fuse 302 is exposed to along vertical
When the sinusoidal time-varying magnetic field of axis 304, eddy current 314 will flow in fuse 302 in the plane inner circumferential perpendicular to the longitudinal axis 304
It is dynamic.
The magnitude of the eddy current 314 incuded is directly related with the size of time-varying magnetic field.The size of time-varying magnetic field so with
The size of alternating current in induction coil 306 is directly related.Correspondingly, the high size alternating current in induction coil 306 can
Enough resistance heatings are generated in fuse 302 to incude enough electric currents in resistance metal fuse 302.Resistance adds
Heat can cause fuse 302 to be melted or vaporized in the mode similar with conventional fuse silk, to interrupt battery circuit.
In some embodiments, resistance metal fuse 302 can be a part of the battery circuit of electric vehicle.One
In a little embodiments, battery circuit, which can be, to be configured for providing the high-tension battery circuit of electric power to automotive power.?
In high current application such as electric vehicle powertrain, fuse 302, which should preferably have, is enough to carry dynamical system operation
The rated current of required electric current.In some embodiments, the operation of dynamical system may need to flow through being up to for battery circuit
The electric current of hundreds of amperes.In the embodiment that wherein fuse 302 has the rated current within the scope of 300 amperes, incuded
It is big to cause to realize by resistance heating that eddy current 314 can have root mean square (RMS) value in 500 to 600 amperes of range
About 0.1 to 100 milliseconds of necessary thawing or vaporization.Each embodiment of induction coil 306 and AC power supplies 312 can produce this
The eddy current of size.E.g., including the coil of 1000 circle, 30 standard wire can have 150 kilo hertzs in the electric current in induction coil
The eddy current of necessary magnitude is generated when the RMS value that 25 milliamperes of frequency.Correspondingly, the AC of alternating current is provided to wire coil 306
The electric power of power supply 312 can be sufficiently large to provide the AC electric current of required magnitude.
Fig. 4 is the flow chart described the redundancy for circuit accoding to exemplary embodiment and disconnect method 400.In some realities
It applies in example, method 400 can be used by the Cutoff Device of the induction fusible described above by reference to Fig. 1 and Fig. 3.In some realities
It applies in example, method 400 can be applied to the simple or complicated battery circuit described above by reference to Fig. 2 and Fig. 3.
Method 400 can start in frame 405, wherein the switch in circuit is commanded at least part for disconnecting the circuit.
In some embodiments, related switch is configured for all electric currents when disconnecting in halt circuit.In some realities
It applies in example, switch can be the branch of parallel circuit, so that the branch that stopping electric current being flowed through circuit by its disconnection is same
When allow electric current to continue or begin flow through other parallel branch of circuit.It, can in the case where mostly string electric vehicle battery circuit
To provide the instruction of a part of disconnecting circuit for various reasons, it is included in a string and detects battery failures, battery strings
Customary activation or deactivation or any other reason for needing to cut out single battery from battery circuit electric current.
After providing the instruction for disconnecting switch, method 400 can continue to frame 410 or frame 425.If switch is according to finger
It enables and disconnecting, method 400 can continue to frame 425, wherein a part of circuit or circuit disconnects, and electric current stops flowing, and square
Method 400 can terminate.However, method 400 can continue to frame 410 if switch is according to instruction disconnection, wherein can be with
Detection is out of order.It can detect that switch occurs disconnection failure in response to open command in various manners.In some embodiments
In, current detector can measure the continuous current for flowing through string directly or by shunting to determine that it is disconnected that circuit is not yet switched on and off
It opens.In some embodiments, sensor can on-position detection switch physical location or otherwise really
Fixed switch is still connected after receiving open command.
Detecting that switch can not be after disconnecting circuit, method 400 can continue to frame 415, wherein apply to induction coil
Add AC electric current with inducing eddy-current in the resistance metal fuse in circuit.In some embodiments, resistance metal fuse
It can be configured above with respect to as Fig. 1 and Fig. 3 description with induction coil.It can be based at least partially on and flow
The rated current of the DC electric current magnitude and fuse of crossing fuse determines the magnitude of AC electric current.AC electric current can be determined to incude and protect
The eddy current for being enough the rated current more than fuse in dangerous silk.
After applying AC electric current to induction coil, method can continue to frame 420, wherein melt and/or vaporize resistance
At least part of metal fuse.Melt and/or at least part of vaporization resistance metal fuse can apply AC electricity
Soon occur after stream, this is because sensing that eddy current has been more than the rated current of fuse immediately.Melt and/or vaporizes
Resistance heating caused by the eddy current that can be flowed the metal inner circumferential in fuse and occur, such as above by reference to figure
Described in 3.Because eddy current circumferentially flows, the existing DC electric current not into fuse adds extra current.Work as insurance
When a part of silk is melted and/or vaporized due to induction heating, melts and/or the metal of vaporization can move.For example, melting
Metal can be fallen into air gap in along fuse and/or the flowing of other circuits or due to gravity.In some embodiments,
When, there are when air gap, the metal of vaporization can be from its initial position in fuse across gas between fuse and surrounding insulator
Gap promotes outward and can assemble or can be deposited on the inner surface of insulator around.In addition, a part vaporization insurance
Silk metal can be discharged from entire fuse component.
After at least part in resistance metal fuse is melted and/or vaporizes, method 400 can continue to frame
425, wherein circuit disconnects and method terminates.Here, being disconnected according to instruction if switched in block 405, result base
It is identical on this.The thawing of fuse and/or vaporizing section may change the geometry of fuse in electricity
Gap is generated in road.Therefore, circuit will be switched off, and electric current will stop running through that a part comprising fuse of circuit.It can
To carry out including replacement or the maintenance work for repairing fuse wire later.In some embodiments, fuse maintenance work can
To carry out except maintenance battery or battery strings or simultaneously, this can solve the electricity for needing fuse wire in some embodiments
Pond damage or failure.
It should be noted that these examples are described as process.Although these operations can be described as sequential process, can
Concurrently or many operations for being executed concurrently in these operations, and the process can be repeated.Furthermore it is possible to rearrange
The sequence of these operations.When its operations are completed, process terminates.Process can correspond to method, function, process, subroutine, son
Program etc..When process corresponds to software function, terminate to correspond to function return calling function or principal function.
The previous description of disclosed implementation is provided so that those skilled in the art make or use public affairs herein
The process and system opened.Will be to those skilled in the art clearly to the various modifications of these implementations, and retouch herein
That states is general far from can be applied to other implementations without departing from the spirit or scope of process disclosed herein and system.Cause
This, process and system disclosed herein are not intended to be limited to implementation shown in this article but should be endowed and be disclosed herein
Principle and the consistent widest range of novel feature.
Claims (18)
1. a kind of redundancy applied in circuit disconnects system, which is characterized in that the system comprises:
Switch；
The resistance metal fuse being connected in series in the circuit with the switch；
Inductor including at least circle wire coil around the longitudinal axis；
It is configured for providing the AC power supplies of alternating current across the inductor；
The electrical insulation material layer being arranged between the resistance metal fuse and the inductor；And
The air gap being arranged between the resistance metal fuse and the electrical insulation material layer；
Wherein, the resistance metal fuse is arranged in the inductor along the longitudinal axis, and the AC power supplies quilt
It is disposed for causing the inductor to generate to be enough to melt or vaporize in the resistance metal fuse and be arranged in it
The resistance metal fuse at least part of size eddy current.
2. redundancy according to claim 1 disconnects system, wherein the switch is magnetic contactor.
3. redundancy according to claim 1 disconnects system, wherein the coil includes multiturn electric wire.
4. redundancy according to claim 1 disconnects system, further comprise in the circuit with the switch and described
The battery that resistance metal fuse is connected in series.
5. redundancy according to claim 4 disconnects system, wherein the system further comprises that multiple can switch respectively
Batteries in parallel connection string, and wherein, each battery strings include:
Battery；
The switch being connected in series with the battery；
The resistance metal fuse being connected in series with the switch and the battery；
Inductor including at least circle wire coil around the longitudinal axis；And
It is configured for providing the AC power supplies of alternating current across the inductor；
Wherein, the resistance metal fuse is arranged in the inductor along the longitudinal axis, and the AC power supplies quilt
It is disposed for causing the inductor to generate to be enough to melt or vaporize in the resistance metal fuse and be arranged in it
The resistance metal fuse at least part of size eddy current.
6. redundancy according to claim 5 disconnects system, wherein the switch is magnetic contactor.
7. a kind of redundancy applied in circuit disconnects method, which is characterized in that the described method includes:
The switch connected in the circuit is provided；
The resistance metal fuse being connected in series in the circuit with the switch is provided；
Offer includes the inductor of at least circle wire coil around the resistance metal fuse；
The electrical insulation material layer being arranged between the resistance metal fuse and the inductor is provided；
The air gap being arranged between the resistance metal fuse and the electrical insulation material layer is provided；
The switch is instructed to disconnect the circuit；
Detect that the switch disconnects the circuit failure；And
Apply alternating current to the inductor；
Wherein, the alternating current in the inductor generates in the resistance metal fuse and is enough to melt or vaporize
The eddy current of at least part of size of the resistance metal fuse.
8. redundancy according to claim 7 disconnects method, wherein the switch is magnetic contactor.
9. redundancy according to claim 7 disconnects method, wherein the coil includes multiturn electric wire.
10. redundancy according to claim 7 disconnects method, further comprise provide in the circuit with the switch and
The battery that the resistance metal fuse is connected in series.
11. redundancy according to claim 10 disconnects method, wherein switch described in described instruction disconnects the step of the circuit
Suddenly it is in response to the failure in the battery and executes.
12. a kind of vehicle with redundancy battery protection, which is characterized in that the vehicle includes:
At least one circuit；
At least one battery connected in the circuit；
The switch being connected in series in the circuit with the battery；
The resistance metal fuse being connected in series in the circuit with the battery and the switch；
Inductor including at least circle wire coil around the longitudinal axis；
It is configured for providing the AC power supplies of alternating current across the inductor；
The electrical insulation material layer being arranged between the resistance metal fuse and the inductor；And
The air gap being arranged between the resistance metal fuse and the electrical insulation material layer；
Wherein, the resistance metal fuse is arranged in the inductor along the longitudinal axis, and the AC power supplies quilt
It is disposed for causing the inductor to generate to be enough to melt or vaporize in the resistance metal fuse and be arranged in it
The resistance metal fuse at least part of size eddy current.
13. vehicle according to claim 12, wherein the switch is magnetic contactor.
14. vehicle according to claim 12 further comprises being arranged in the resistance metal fuse and the inductance
Electrical insulation material layer between device.
15. vehicle according to claim 12 further comprises being arranged in the resistance metal fuse and the electricity absolutely
Air gap between edge material layer.
16. vehicle according to claim 12, wherein the coil includes multiturn electric wire.
17. vehicle according to claim 12, wherein the vehicle further comprises multiple parallel connection electricity that can switch respectively
Pond string, and wherein, each battery strings include:
Battery；
The switch being connected in series with the battery；
The resistance metal fuse being connected in series with the switch and the battery；
Inductor including at least circle wire coil around the longitudinal axis；
It is configured for providing the AC power supplies of alternating current across the inductor；
The electrical insulation material layer being arranged between the resistance metal fuse and the inductor；And
The air gap being arranged between the resistance metal fuse and the electrical insulation material layer；
Wherein, the resistance metal fuse is arranged in the inductor along the longitudinal axis, and the AC power supplies quilt
It is disposed for causing the inductor to generate to be enough to melt or vaporize in the resistance metal fuse and be arranged in it
The resistance metal fuse at least part of size eddy current.
18. vehicle according to claim 17, wherein the switch is magnetic contactor.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/005862 | 2016-01-25 | ||
| US15/005,862 US20170213681A1 (en) | 2016-01-25 | 2016-01-25 | Redundant circuit disconnection for electric vehicles |
| US15/093,101 US9731606B1 (en) | 2016-01-25 | 2016-04-07 | Redundant circuit disconnection for electric vehicles |
| US15/093101 | 2016-04-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106877279A CN106877279A (en) | 2017-06-20 |
| CN106877279B true CN106877279B (en) | 2019-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710056740.0A Active CN106877279B (en) | 2016-01-25 | 2017-01-25 | The method and system of redundant circuit disconnection for electric vehicle, the vehicle with redundancy battery protection |
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| CN (1) | CN106877279B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5387703B2 (en) * | 2012-01-25 | 2014-01-15 | 株式会社豊田自動織機 | Battery cell voltage equalization circuit |
| WO2013183079A1 (en) * | 2012-06-04 | 2013-12-12 | Empire Technology Development Llc | Battery assembly, unit cell and cut-off device |
| CN204425023U (en) * | 2015-01-13 | 2015-06-24 | 苏州中元动力科技有限公司 | Battery management system |
| CN204946982U (en) * | 2015-09-12 | 2016-01-06 | 宁德时代新能源科技有限公司 | Batteries in parallel connection module |
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2017
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| CN106877279A (en) | 2017-06-20 |
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