CN203902309U - Management system for vehicle battery pack - Google Patents
Management system for vehicle battery pack Download PDFInfo
- Publication number
- CN203902309U CN203902309U CN201420358348.3U CN201420358348U CN203902309U CN 203902309 U CN203902309 U CN 203902309U CN 201420358348 U CN201420358348 U CN 201420358348U CN 203902309 U CN203902309 U CN 203902309U
- Authority
- CN
- China
- Prior art keywords
- switch
- resistance
- battery pack
- battery
- closed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000001816 cooling Methods 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 9
- 230000004044 response Effects 0.000 claims description 7
- 239000008188 pellet Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 238000007726 management method Methods 0.000 description 83
- 238000010438 heat treatment Methods 0.000 description 23
- 238000000034 method Methods 0.000 description 18
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 9
- 238000010586 diagram Methods 0.000 description 9
- 229910052744 lithium Inorganic materials 0.000 description 9
- 230000005855 radiation Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a management system for a vehicle battery pack. The system comprises a positive electrode switch arranged between a positive electrode of the battery pack and a vehicle load, and a negative electrode switch arranged between a negative electrode of the battery pack and the vehicle load, wherein the positive electrode switch is electrically connected in series with a battery and the vehicle load, and the negative electrode switch is electrically connected in series with the battery pack and the vehicle load. The system further comprises a first resistor, a first switch and a battery management unit, wherein the first resistor and the first switch are electrically connected in series and are electrically connected in parallel with the vehicle load together; the battery management unit is used for closing the positive electrode switch and the negative electrode switch and closing or opening the first switch to control the temperature of the battery; in addition, the positive electrode switch and the negative electrode switch are opened in a vehicle accident, and the first switch is closed to discharge the vehicle load.
Description
Technical field
The utility model relates generally to vehicle electric field, relates more specifically to a kind of Vehicular battery group management system.
Background technology
In vehicle, high pressure (HV) system, comprises battery, inverter, motor etc., has strict security requirement.Particularly in case of emergency, as while having an accident, fast and reliably by high tension supply, battery pack for example, from other parts of high-pressure system, for example vehicle load disconnects, and is vital.In addition the important point is as quickly as possible by other partial discharges of high-pressure system, to prevent that electric charge from dissipating out of control.For example, prevent system component, as cable, when damaged, produce arc event.In addition, in vehicle load, as electro-motor or power supply inverter unit other parts to high-pressure system continue in the situation of power supply, as due to after accident or lose causing after the control of conv in situation that wheel rotates freely, although high voltage bus, high-tension battery disconnect completely, but the delivery system of dump energy will lose efficacy, and to cause other parts of high-pressure system be unsafe at concerned power in long-time.In this case, when vehicle collision occurs, need to provide sooner, more failure-free solution disconnects battery pack and vehicle load or makes vehicle load electric discharge.
On the other hand, the battery using in vehicle, in certain range of temperatures, lithium cell for example, the marked change along with the variation of temperature of its internal resistance.When temperature raises, lithium battery interior resistance reduces, and the efficiency of lithium cell improves thereupon, and battery can be in higher power level work.And when temperature is very low, lithium cell can not be worked at all.Therefore, when the temperature of lithium cell is too low, lithium cell need to be heated, could in cold environment, use.Conventionally, utilize the air cooling system of vehicle, by the air in use operator's compartment, as heating or cooling source, come lithium cell to heat.Yet when temperature is very low, damp and hot operator's compartment air can cause aqueous vapor to condense on cold battery pack parts.If need to remove and to condense, still need to battery pack, heat from inside, extra heater block need to be provided and for heater block provides the power supply of electric energy, make the structure of battery circuit more complicated, increased cost.
Summary of the invention
In view of the above problems, the utility model has been proposed, to a kind of Vehicular battery group management system is provided, to overcome the problems referred to above or to address the above problem at least in part.
According to first aspect of the present utility model, a kind of Vehicular battery group management system is provided, described system comprises: positive switch, be arranged between the anodal and described vehicle load of described battery pack, and described positive switch is in series electrically connected to described battery and described vehicle load; Negative switch, is arranged between the negative pole and described vehicle load of described battery pack, and described negative switch is in series electrically connected to described battery pack and described vehicle load; Described system also comprises: the first resistance and the first switch, and described the first resistance and described the first switch are in series electrically connected to, and described the first resistance and described first switch of series connection are electrically connected in parallel with described vehicle load; Battery management unit, for the described positive switch of closure and described negative switch, and closed or disconnect described the first switch to control the temperature of described battery; And when vehicle has an accident, disconnect described positive switch and described negative switch, and closed described the first switch is to discharge described vehicle load.
According to an embodiment of the present utility model, wherein said battery management unit and control unit for vehicle or the communication connection of safety air bag control unit; And described battery management unit also for: when vehicle has an accident, receive the accident signal that control unit for vehicle (ECU) or safety air bag control unit (ACU) send; And in response to described accident signal, disconnect described positive switch and described negative switch, and closed described the first switch is to discharge described vehicle load.
According to an embodiment of the present utility model, wherein said battery management unit is also for closed described positive switch and described negative switch; Measure the temperature of described battery pack; Measured temperature is compared with predetermined temperature threshold; When measured temperature is less than described temperature threshold, closed described the first switch; When measured temperature is equal to or greater than described temperature threshold, disconnect closed described the first switch.
According to an embodiment of the present utility model, wherein said battery pack comprises a plurality of battery units that are in series electrically connected to, and described in each, battery unit equates with the distance between described the first resistance.
According to an embodiment of the present utility model, wherein said battery pack is dispelled the heat by the air cooling system of described vehicle, and described the first resistance is arranged on the air intake place of described air cooling system.
According to an embodiment of the present utility model, wherein said the first resistance is several first resistance that are in series electrically connected to, and described several first resistance are evenly distributed in around described battery pack.
According to an embodiment of the present utility model, wherein said battery pack is dispelled the heat by the liquid cooling system of described vehicle, and described several first resistance are near described battery pack.
According to an embodiment of the present utility model, wherein said battery pack comprises a plurality of battery units that are in series electrically connected to, described system also comprises: several second switches, and each of described several second switches is electrically connected in parallel with each in described several first resistance respectively; And described battery management unit is also for closed described positive switch and described negative switch, and closed described the first switch; Closed or disconnect each in second switch described in several respectively, to control respectively each the temperature in described a plurality of battery unit.
According to an embodiment of the present utility model, wherein said battery management unit also for: when described positive switch and described negative switch cannot disconnect, closed described the first switch, by the energy of battery pack described in described the first resistance consumption.
According to an embodiment of the present utility model, described system also comprises the betal can being arranged on outside described the first resistance.
According to an embodiment of the present utility model, wherein said the first resistance is set to prism-shaped, cylindric or sheet.
According to an embodiment of the present utility model, wherein said the first resistance is set to a plurality of pellet resistances in parallel.
According to an embodiment of the present utility model, described system also comprises pre-charge resistance and precharge switch, described pre-charge resistance is in series electrically connected to described precharge switch, and the pre-charge resistance of described series connection and described precharge switch are set to be electrically connected in parallel with described positive switch; And before the described positive switch of closure and described negative switch, described battery management unit also for: disconnect described the first switch and described positive switch; Closed described precharge switch and described negative switch, take by described battery pack is described vehicle load precharge; And after completing, precharge disconnects described precharge switch.
According to second aspect of the present utility model, a kind of Vehicular battery group management system is provided, comprise: positive switch, be arranged between the anodal and described vehicle load of described battery pack, described positive switch is in series electrically connected to described battery and described vehicle load; Negative switch, is arranged between the negative pole and described vehicle load of described battery pack, and described negative switch is in series electrically connected to described battery pack and described vehicle load; The first resistance and the first switch, described the first resistance and described the first switch are in series electrically connected to, and described the first resistance and described first switch of series connection are electrically connected in parallel with described vehicle load; Battery management unit, for the described positive switch of closure and described negative switch, and closed or disconnect described the first switch to control the temperature of described battery pack; Whether when vehicle has an accident, detect described positive switch and described negative switch cannot disconnect; And when described positive switch and described negative switch being detected and cannot disconnect, closed described the first switch, by the energy of battery pack described in described the first resistance consumption.
According to an embodiment of the present utility model, wherein said battery management unit also for: when vehicle has an accident, receive the accident signal of control unit for vehicle or safety air bag control unit; In response to described accident signal, detect described positive switch and described negative switch and whether cannot disconnect.
According to an embodiment of the present utility model, wherein said battery management unit is also for closed described positive switch and described negative switch; Measure the temperature of described battery pack; Measured temperature is compared with predetermined temperature threshold; When measured temperature is less than described temperature threshold, closed described the first switch; When measured temperature is equal to or greater than described temperature threshold, disconnect closed described the first switch.
In a word, the Vehicular battery group management system that embodiment of the present utility model provides, provides a kind of quick, reliable and safe scheme, not only can control the temperature of vehicle battery packs, battery can also be disconnected from vehicle load, and effectively by the electric residue electric discharge in vehicle load; Even if battery pack and vehicle load cannot disconnect, also can vehicle load be discharged by resistance, this scheme is effective and reliable; Can control respectively each region of battery pack heat around, each battery unit is adjusted respectively to temperature, can control as required the speed that battery pack heats up simultaneously, heat is evenly distributed, so that the heating of all battery units has identical temperature; The a large amount of amount of localized heat that produce in the time of can working to battery circuit manage; Use the resistance that self can produce heat after energising as heater element, do not need to be set to the extra power supply of heater element power supply, simplified the structure of battery circuit, reduced cost; Can effectively avoid the immediate current spike in battery circuit, extend the service life of each parts; In addition, the Vehicular battery group management system that embodiment of the present utility model provides had both been applicable to use the vehicle of air cooling system, was also applicable to use the vehicle of liquid cooling system.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of specification sheets, and for above-mentioned and other objects, features and advantages of the present utility model can be become apparent, below especially exemplified by the specific embodiment of the present utility model.
Accompanying drawing explanation
By reading below detailed description of the preferred embodiment, various other advantage and benefits will become cheer and bright for those of ordinary skills.Accompanying drawing is only for the object of preferred implementation is shown, and do not think restriction of the present utility model.And in whole accompanying drawing, by identical reference symbol, represent identical parts.In the accompanying drawings:
Fig. 1 be according in the utility model one embodiment for controlling the schematic diagram of device of the temperature of battery pack;
Fig. 2 is according to the schematic diagram of a plurality of battery units and several the first resistance in battery pack in the utility model one embodiment;
The diagram of curves of the voltage of vehicle load and the temperature traverse of battery pack when Fig. 3 is or disconnection closed according to each switch in the system 100 of the utility model one embodiment;
Fig. 4 is according to the diagram of circuit of the Vehicular battery group management method 200 of the utility model one embodiment; And
Fig. 5 is according to the diagram of circuit of the Vehicular battery group management method 300 of the utility model one embodiment.
The specific embodiment
Illustrative embodiments of the present disclosure is described below with reference to accompanying drawings in more detail.Although shown illustrative embodiments of the present disclosure in accompanying drawing, yet should be appreciated that and can realize the disclosure and the embodiment that should do not set forth limits here with various forms.On the contrary, it is in order more thoroughly to understand the disclosure that these embodiments are provided, and can by the scope of the present disclosure complete convey to those skilled in the art.Although should be appreciated that those skilled in the art can dream up not clearly description or record in this manual, still realize the utility model and be included in the various structures in the utility model spirit, principle and scope.All examples of quoting from this specification sheets and conditional language are all the objects for explanation and instruction, with principle and the concept that helps reader understanding contriver to contribute to prior art, and should be understood to be not limited to these concrete example and conditions of quoting from.In addition, in order to be illustrated more clearly in, omitted the detailed description for known devices, circuit and method, not obscure description of the present utility model.Should be understood that unless stated otherwise, the feature in each embodiment described herein can combine mutually.
The quantity that it will be understood by those skilled in the art that each parts cited in exemplary embodiment of the present utility model is only for illustrative purposes, and not should be understood to restriction of the present utility model.In the utility model, each parts can have other quantity, and do not depart from scope of the present utility model.
In this manual, the function of each unit can by with specialized hardware or the hardware that can combine with suitable software to carry out processing realize.Such hardware or specialized hardware can comprise special IC (ASIC), various other circuit, various treaters etc.When being realized by treater, this function can be provided by single application specific processor, single shared processing device or a plurality of independently treater (wherein some may be shared).In addition, treater should not be understood to the hardware that special finger can executive software, but can impliedly comprise and be not limited to digital signal processor (DSP) hardware, be used for read-only memory (ROM) (ROM), random access memory (RAM) and the non-volatile memory apparatus of storing software.
Embodiment mono-
According to first aspect of the present utility model, a kind of Vehicular battery group management system is provided, described system comprises: positive switch, be arranged between the anodal and described vehicle load of described battery pack, and described positive switch is in series electrically connected to described battery pack and described vehicle load; Negative switch, is arranged between the negative pole and described vehicle load of described battery pack, and described negative switch is in series electrically connected to described battery pack and described vehicle load; Described system also comprises: the first resistance and the first switch, and described the first resistance and described the first switch are in series electrically connected to, and described the first resistance and described first switch of series connection are electrically connected in parallel with described vehicle load; Battery management unit, for the described positive switch of closure and described negative switch, and closed or disconnect described the first switch to control the temperature of described battery pack; And when vehicle has an accident, disconnect described positive switch and described negative switch, and closed described the first switch is to discharge described vehicle load.
According to embodiment of the present utility model, battery pack, as lithium cell group, is other parts to the high-pressure system of vehicle, as inverter or motor, and the power supply of power supply.
Fig. 1 shows a non-limiting and exemplary embodiment of the present utility model.The annexation that should be appreciated that each unit represented in Fig. 1 is only example, and those skilled in the art can adopt other annexation completely, as long as function of the present utility model also can be realized in each unit under such annexation.
As shown in Figure 1, according to the Vehicular battery group management system 100 of illustrative embodiments of the present utility model, comprise positive switch 120 and negative switch 130.Positive switch 120 is arranged between the anodal and described vehicle load 101 of described battery pack 110, and described positive switch 120 is in series electrically connected to described battery pack 110 and described vehicle load 101.Negative switch 130 is arranged between the negative pole and described vehicle load 101 of described battery pack 110, and described negative switch 130 is in series electrically connected to described battery pack 110 and described vehicle load 101.System 100 also comprises the first resistance 140 and the first switch 150, and described the first resistance 140 and described the first switch 150 are in series electrically connected to, and described the first resistance 140 and described first switch 150 of series connection are electrically connected in parallel with described vehicle load 101.System 100 also comprises battery management unit 160, for the described positive switch 120 of closure and described negative switch 130, so that 101 power supplies of 110 pairs of vehicle load of battery pack; Battery management unit 160 is for closed or disconnect described the first switch 150 and make the first resistance 140 energising or power-off.When closed the first switch 150, thereby the first resistance 140 energisings produce heat heating battery group 110; When disconnecting the first switch 150, in the first resistance 140, there is no electric current, no longer produce heat, thereby maintain the temperature of battery pack or the temperature of battery pack is reduced gradually through heat radiation.When vehicle has an accident, battery management unit 160 is for disconnecting described positive switch 120 and described negative switch 130, so that power-off between battery pack 110 and vehicle load 101, and closed described the first switch 150, now the first resistance 140 is connected in series with vehicle load 101, by the first resistance 140, described vehicle load 101 is discharged.
According to illustrative embodiments of the present utility model, described battery management unit 160 is also for closed described positive switch and described negative switch; Measure the temperature of described battery pack; Measured temperature is compared with predetermined temperature threshold; When measured temperature is less than described temperature threshold, closed described the first switch; When measured temperature is equal to or greater than described temperature threshold, disconnect closed described the first switch.As shown in Figure 1, the closed positive switch 120 of battery management unit 160 and negative switch 130 so that battery pack 110 in power supply state; Measure the temperature T of battery pack 110; By the temperature T of described battery pack and predetermined temperature threshold T
0compare, alternatively, predetermined temperature threshold T
0can be the temperature of battery pack work efficiency when the highest.Alternatively, described in the temperature T of the battery pack that detects can be the temperature directly being recorded by a temperature sensor, can be also the aviation value of the temperature that detects of one group of temperature sensor or the battery pack temperature drawing according to other algorithms.When measured temperature T is less than temperature threshold T
0, closed the first switch 150 of battery management unit 160, the first switch 150 is electrically connected to the first resistance 140 in parallel with battery pack 110, after the first resistance 140 energisings, produces heat, thus heating battery group 110.When measured temperature T is equal to or greater than temperature threshold T
0, battery management unit 160 disconnects the first closed switch 150, in the first resistance 140, there is no electric current, no longer produces heat, thereby the temperature T of battery pack 110 is maintained to temperature threshold T
0or make the temperature T of battery pack be reduced to gradually temperature threshold T through heat radiation
0.This mode is used the resistance that self can produce heat after energising as heater element, does not need to be set to the extra power supply of heater element power supply, has simplified the structure of battery circuit, has reduced cost.
According to illustrative embodiments of the present utility model, described battery pack comprises a plurality of battery units that are in series electrically connected to, and described in each, battery unit equates with the distance between described the first resistance.Alternatively, battery pack can comprise a plurality of battery units, and these battery units can and/or be connected in parallel with various combined serial, so that required voltage and energy to be provided.For example, battery pack can comprise a plurality of battery units that are connected in series, and each battery unit also can comprise a plurality of series connection and/or the battery being connected in parallel.In order to pack, the object such as installation, safety management and control, these battery units can be set to independently module.For example, for a battery pack with 96 batteries that are connected in series, can battery pack be set to 12 battery modules that are connected in series, each module comprises 8 battery units that are connected in series.The quantity that it will be understood by those skilled in the art that each parts cited in exemplary embodiment of the present utility model is only for illustrative purposes, and not should be understood to restriction of the present utility model.In the utility model, each parts can have other quantity, and do not depart from scope of the present utility model.Alternatively, a plurality of battery units can be evenly distributed on and take on the circumference that the first resistance 140 is the center of circle.Alternatively, a plurality of battery units can be evenly distributed on and take on the sphere that the first resistance 140 is the centre of sphere.This mode makes the first resistance heat equably each battery unit in battery pack.
According to illustrative embodiments of the present utility model, described battery pack 110 is dispelled the heat by the air cooling system of described vehicle, and described the first resistance 140 is arranged on the air intake place of described air cooling system.Air in the air cooling system use operator's compartment of vehicle, as heating or cooling source, comes battery pack 110 heating or heat radiation.By the first resistance 140 being arranged on to the air intake place of described air cooling system, make air in operator's compartment when through air intake place, be arranged on the first resistance 140 heating of the air intake of described air cooling system, air after heating arrives and surrounds battery pack 110 fast, to battery pack 110 heating.This mode, can by heat, sooner, more Transmit evenly be to battery pack, and increased battery pack and participate in the area of contact that heat is transmitted, thereby battery pack is heated up quickly.
According to illustrative embodiments of the present utility model, described the first resistance is several first resistance that are in series electrically connected to, and described several first resistance are evenly distributed in described battery pack around can control more equably the temperature of battery pack.In a preferred embodiment, described battery pack comprises a plurality of battery units that are in series electrically connected to, and described the first resistance is several first resistance that are in series electrically connected to, and described several first resistance are evenly distributed in around a plurality of described battery units.Alternatively, the quantity of battery unit can equal the quantity of the first resistance, also can be not equal to the quantity of the first resistance.Alternatively, as shown in Figure 2, battery pack 110 can comprise a plurality of, as 9 battery unit 111-119 that are in series electrically connected to, the first resistance 140 is several, as four the first resistance 141-144 that are in series electrically connected to, these four the first resistance 141-144 can be configured to be evenly distributed in battery pack, around battery unit 111-119.Alternatively, this battery pack can have the battery unit of other quantity.Alternatively, the first resistance can be also the first resistance of other quantity.Fig. 2 shows according to the schematic diagram of a plurality of battery units in battery pack in exemplary embodiment of the present utility model and several the first resistance.As shown in Figure 2, when the battery unit 111-119 in battery pack equidistantly arranges along a straight line successively, the first resistance 141 can be arranged on battery unit 112 places, the first resistance 142 is arranged on battery unit 114 places, the first resistance 143 is arranged on battery unit 116 places, the first resistance 144 is arranged on battery unit 118 places, so that the each several part homogeneous heating of battery pack.Alternatively, can be set to a module by four the first resistance 141-144,9 battery unit 111-119 are evenly distributed on and are take on the circumference that this module is the center of circle.Alternatively, can be set to a module by four the first resistance 141-144,9 battery unit 111-119 are evenly distributed on and are take on the sphere that this module is the centre of sphere.Alternatively, can be set to a module by 9 battery unit 111-119, four the first resistance 141-144 are evenly distributed on and are take on the circumference that this module is the center of circle.Alternatively, the first resistance can, near battery pack setting, also can be set to apart from battery pack one segment distance.
According to illustrative embodiments of the present utility model, described battery pack is dispelled the heat by the liquid cooling system of described vehicle, and described several first resistance are near described battery pack.In a preferred embodiment, described battery pack comprises a plurality of battery units that are in series electrically connected to, described a plurality of battery unit is dispelled the heat by the liquid cooling system of described vehicle, and described several first resistance are near described a plurality of battery units, so that heat can be directly delivered to battery pack from the first resistance, thereby by the each several part homogeneous heating of battery pack.As shown in Figure 2, the battery pack of system 100 comprises 9 battery unit 111-119, and 4 the first resistance 141-144 are evenly distributed in around battery unit 111-119.When liquid cooling system when heat radiation of battery pack by described vehicle, the first resistance 141 is set near battery unit 112, the first resistance 142 is arranged on battery unit 114, the first resistance 143 is set near battery unit 116, the first resistance 144 is set near battery unit 118, so that heat can be directly delivered to battery pack from the first resistance, thereby by the each several part homogeneous heating of battery pack.Alternatively, can be set to a module by four the first resistance 141-144,9 battery unit 111-119 are uniformly distributed near this module.Alternatively, can be set to a module by 9 battery unit 111-119, four the first resistance 141-144 are uniformly distributed near this module.
According to illustrative embodiments of the present utility model, described battery pack comprises a plurality of battery units that are in series electrically connected to, system 100 also comprises: several second switches, and each of described several second switches is electrically connected in parallel with each in described several first resistance respectively; And described battery management unit is also for closed described positive switch and described negative switch, and closed described the first switch; Closed or disconnect each in second switch described in several respectively, to control respectively each the temperature in described a plurality of battery unit.
As shown in Figure 2, described battery pack 110 comprises a Battery pack unit of series connection, for example, comprise a Battery pack unit of 9 battery unit 111-119 of series connection, and several first resistance of series connection, for example 4 the first resistance 141-144.System 100 also comprises several second switches, 4 second switch 161-164 for example, each second switch is electrically connected in parallel with first resistance respectively, for example second switch 161 is electrically connected in parallel with the first resistance 141, second switch 162 is electrically connected in parallel with the first resistance 142, second switch 163 is electrically connected in parallel with the first resistance 143, and second switch 164 is electrically connected in parallel with the first resistance 144.Battery management unit 160 is also for closed positive switch 120 and negative switch 130, so that battery pack powers to vehicle load, and closed the first switch 150, so that the first resistance 141-144 energising of series connection with it; Closed or disconnect each in second switch 161-164 described in several respectively, make respectively the first resistance 141-144 short circuit in parallel with it or normally work, to control respectively each the temperature in described a plurality of battery unit.For example, closed positive switch 120 and negative switch 130, and after closed the first switch 150, battery management unit 160 can closed second switch 162, makes first resistance 142 short circuits in parallel with it and does not produce heat; Disconnect second switch 161,163 and 164 simultaneously, make first resistance 141,143 in parallel with it and 144 normal work and generation heat, thereby heating is arranged on the first resistance 141,143 and near 144 a plurality of battery units.Alternatively, battery management unit 160 is closed a plurality of second switches simultaneously, disconnect other second switches.Alternatively, battery management unit 160 can be in a plurality of time gaps closed a plurality of second switch successively, in each time gap, an only closed second switch, disconnects other second switches.
According to illustrative embodiments of the present utility model, described battery management unit 160 and control unit for vehicle or the communication connection of safety air bag control unit; And described battery management unit 160 also for: when vehicle has an accident, receive the accident signal that control unit for vehicle or safety air bag control unit send; And in response to described accident signal, disconnect described positive switch 120 and described negative switch 130, so that power-off between battery pack 110 and vehicle load 101, and closed described the first switch 150, now the first resistance 140 is connected in series with vehicle load 101, by the first resistance 140, described vehicle load 101 is discharged.
According to illustrative embodiments of the present utility model, wherein said battery management unit 160 also for: when described positive switch 120 and described negative switch 130 cannot disconnect, closed described the first switch 150, consumes the energy of described battery pack by described the first resistance 140.When positive switch 120 and negative switch 130 lost efficacy, cannot disconnect, closed described the first switch 150 of battery management unit 160, makes the first resistance 140 be electrically connected to battery pack 110 and vehicle load 101, by the energy of the first resistance 140 consuming cells groups 110.Whether detection positive switch 120 and negative switch 130 cannot disconnect can be used any mode of the prior art, such as realizing by detecting battery pack temperature or testing circuit electric current etc.
According to illustrative embodiments of the present utility model, system 100 also comprises the betal can being arranged on outside described the first resistance 140, with heat release more quickly and efficiently.
According to illustrative embodiments of the present utility model, described the first resistance 140 is set to prism-shaped, cylindric or sheet.
According to illustrative embodiments of the present utility model, described the first resistance 140 is set to a plurality of pellet resistances in parallel, to produce exothermal effect better.In a preferred embodiment, a plurality of pellet resistances of described parallel connection are connected with a switch respectively, thereby control respectively the electrical connection of each pellet resistance, thereby realize exothermal effect in various degree.
According to illustrative embodiments of the present utility model, system 100 also comprises: pre-charge resistance and precharge switch, described pre-charge resistance is in series electrically connected to described precharge switch, and the pre-charge resistance of described series connection and described precharge switch are set to be electrically connected in parallel with described positive switch; And before the described positive switch of closure and described negative switch, described battery management unit also for: disconnect described the first switch and described positive switch; Closed described precharge switch and described negative switch, take by described battery pack is described vehicle load precharge; And after completing, precharge disconnects described precharge switch.As shown in Figure 1, system 100 also comprises pre-charge resistance 170 and precharge switch 180, described pre-charge resistance 170 is in series electrically connected to described precharge switch 180, and the pre-charge resistance 170 of described series connection and described precharge switch 180 are set to be electrically connected in parallel with described positive switch 120.If positive switch 120, negative switch 130 and the first switch 150 all disconnect, in whole battery circuit, there is no electric current.If wish returns to the supply regular power state to vehicle load by battery pack, if closed positive switch 120 of while and negative switch 130 can produce an immediate current spike in circuit, have a strong impact on the service life of each element in battery circuit.Therefore, before closed positive switch 120 and negative switch 130, battery management unit 160 first disconnects described the first switch 150 and described positive switch 120, and now circuit is in off-position; Then, the closed precharge switch 180 of battery management unit 160 and negative switch 130, now, pre-charge resistance 170 is connected in series with battery pack 110 and load 101, by pre-charge resistance 170, serve as a part of load, thereby avoid immediate current spike, extend the service life of each element in battery circuit.
The diagram of curves of the voltage of vehicle load and the temperature traverse of battery pack when Fig. 3 shows or disconnection closed according to each switch in the system 100 of embodiment of the present utility model.
As shown in Figure 3, at time gap t
1in, battery management unit 160 disconnects positive switch 120, negative switch 130, the first switch 150 and precharge switch 180.Now, battery pack 110 is to vehicle load power supply, there is no electric current, heating battery group not in the first resistance 140, and the voltage of vehicle load is 0, and the temperature T of battery pack equals ambient temperature and lower than temperature threshold T
0.
At time gap t
2in, for fear of simultaneously closed positive switch 120 and negative switch 130, causing producing immediate current spike in circuit, battery management unit 160 still remains open the first switch 150 and positive switch 120, and now circuit is in off-position; Then, the closed precharge switch 180 of battery management unit 160 and negative switch 130, now, pre-charge resistance 170 is connected in series with battery pack 110 and vehicle load 101, pre-charge resistance 170 serves as a part of load, by battery pack 110, to vehicle load 101, powered, the voltage V rising of vehicle load, thus avoid immediate current spike.When the voltage V of vehicle load reaches normal working voltage V
0time, closed positive switch 120, disconnects precharge switch 180 subsequently, no current in pre-charge resistance 170 now, and battery pack 110 is in the supply regular power state to vehicle load 101.At time gap t
2in, the first switch 150 remains open always, there is no electric current, heating battery group not in the first resistance 140, and the temperature T of battery pack still equals ambient temperature and lower than temperature threshold T
0.
At time gap t
3in, battery management unit 160 remains closed positive switch 120 and negative switch 130, and battery pack 110 is in the supply regular power state to vehicle load 101; Precharge switch 180 remains open, now no current in pre-charge resistance 170; The voltage V of vehicle load remains on normal working voltage V
0.At time gap t
3in, the first switch 150 remains open always, there is no electric current, heating battery group not in the first resistance 140, and the temperature T of battery pack still equals ambient temperature and lower than temperature threshold T
0.
At time gap t
4in, battery management unit 160 remains closed positive switch 120 and negative switch 130, and battery pack 110 is in the supply regular power state to vehicle load 101; Precharge switch 180 remains open, now no current in pre-charge resistance 170; The voltage V of vehicle load remains on normal working voltage V
0.The temperature T that battery pack detected when battery management unit 160 is less than temperature threshold T
0, in closed the first switch 150, the first resistance 140, there is electric current and produce heat, and heating battery group 110, the temperature T of battery pack is increased to temperature threshold T
0.
At time gap t
5in, battery management unit 160 remains closed positive switch 120 and negative switch 130, and battery pack 110 is in the supply regular power state to vehicle load 101; Precharge switch 180 remains open, now no current in pre-charge resistance 170; The voltage V of vehicle load remains on normal working voltage V
0.The temperature T that battery pack detected when battery management unit 160 is equal to or greater than temperature threshold T
0, disconnecting in the first switch 150, the first resistance 140 and there is no electric current and no longer produce heat, the temperature T of battery pack remains on temperature threshold T
0or be reduced to gradually temperature threshold T through heat radiation
0.
At time gap t
6in, for example, when vehicle has an accident, battery management unit 160 disconnects described positive switch 120 and described negative switch 130, so that power-off between battery pack 110 and vehicle load 101, and closed described the first switch 150, now the first resistance 140 is connected in series with vehicle load 101, and by the first resistance 140, by described vehicle load 101 electric discharges, the voltage fast reducing that makes vehicle load 101 is 0.Now, the first resistance 140 has electric current and produces heat, and of short duration heating battery group 110, because of discharge time very short, therefore the temperature T of battery pack rises and is not obvious.
After electric discharge completely, at time gap t
7in, battery management unit 160 disconnects positive switch 120, negative switch 130, the first switch 150 and precharge switch 180.Now, battery pack 110 is to vehicle load power supply, there is no electric current, heating battery group not in the first resistance 140, and the voltage of vehicle load is 0, and the temperature T of battery pack drops to ambient temperature gradually.
In a word, the Vehicular battery group management system that embodiment of the present utility model provides, provides a kind of quick, reliable and safe scheme, not only can control the temperature of vehicle battery packs, battery can also be disconnected from vehicle load, and effectively by the electric residue electric discharge in vehicle load; Even if battery pack and vehicle load cannot disconnect, also can vehicle load be discharged by resistance, this scheme is effective and reliable; Can control respectively each region of battery pack heat around, each battery unit is adjusted respectively to temperature, can control as required the speed that battery pack heats up simultaneously, heat is evenly distributed, so that the heating of all battery units has identical temperature; The a large amount of amount of localized heat that produce in the time of can working to battery circuit manage; Use the resistance that self can produce heat after energising as heater element, do not need to be set to the extra power supply of heater element power supply, simplified the structure of battery circuit, reduced cost; Can effectively avoid the immediate current spike in battery circuit, extend the service life of each parts; In addition, the Vehicular battery group management system that embodiment of the present utility model provides had both been applicable to use the vehicle of air cooling system, was also applicable to use the vehicle of liquid cooling system.
Embodiment bis-
According to second aspect of the present utility model, a kind of Vehicular battery group management system is provided, comprise: positive switch, be arranged between the anodal and described vehicle load of described battery pack, described positive switch is in series electrically connected to described battery and described vehicle load; Negative switch, is arranged between the negative pole and described vehicle load of described battery pack, and described negative switch is in series electrically connected to described battery pack and described vehicle load; Described system also comprises: the first resistance and the first switch, and described the first resistance and described the first switch are in series electrically connected to, and described the first resistance and described first switch of series connection are electrically connected in parallel with described vehicle load; Battery management unit, for the described positive switch of closure and described negative switch, and closed or disconnect described the first switch to control the temperature of described battery pack; Whether when vehicle has an accident, detect described positive switch and described negative switch cannot disconnect; And when described positive switch and described negative switch being detected and cannot disconnect, closed described the first switch, by the energy of battery pack described in described the first resistance consumption.
According to embodiment of the present utility model, battery pack, as lithium cell group, is other parts to the high-pressure system of vehicle, as inverter or motor, and the power supply of power supply.
As shown in Figure 1, according to the Vehicular battery group management system 100 of illustrative embodiments of the present utility model, comprise positive switch 120 and negative switch 130.Positive switch 120 is arranged between the anodal and described vehicle load 101 of described battery pack 110, and described positive switch 120 is in series electrically connected to described battery pack 110 and described vehicle load 101.Negative switch 130 is arranged between the negative pole and described vehicle load 101 of described battery pack 110, and described negative switch 130 is in series electrically connected to described battery pack 110 and described vehicle load 101.System 100 also comprises the first resistance 140 and the first switch 150, and described the first resistance 140 and described the first switch 150 are in series electrically connected to, and described the first resistance 140 and described first switch 150 of series connection are electrically connected in parallel with described vehicle load 101.System 100 also comprises battery management unit 160, for the described positive switch 120 of closure and described negative switch 130, so that 101 power supplies of 110 pairs of vehicle load of battery pack; Battery management unit 160 is for closed or disconnect described the first switch 150 and make the first resistance 140 energising or power-off.When closed the first switch 150, thereby the first resistance 140 energisings produce heat heating battery group 110; When disconnecting the first switch 150, in the first resistance 140, there is no electric current, no longer produce heat, thereby maintain the temperature of battery pack or the temperature of battery pack is reduced gradually through heat radiation.When vehicle has an accident, described battery management unit 160 also for: when vehicle has an accident, detect described positive switch 120 and whether described negative switch 130 disconnects; When positive switch 120 and negative switch 130 being detected and lost efficacy, cannot disconnect, closed described the first switch 150 of battery management unit 160, the first resistance 140 is electrically connected to, by the energy of the first resistance 140 consuming cells groups 110 with battery pack 110 and vehicle load 101.
According to embodiment of the present utility model, described battery management unit 160 also for: when vehicle has an accident, receive the accident signal of control unit for vehicle or safety air bag control unit; In response to described accident signal, detect described positive switch 120 and whether described negative switch 130 cannot disconnect.Alternatively, battery management unit 160 and control unit for vehicle or the communication connection of safety air bag control unit.
According to embodiment of the present utility model, described battery management unit is also for closed described positive switch and described negative switch; Measure the temperature of described battery pack; Measured temperature is compared with predetermined temperature threshold; When measured temperature is less than described temperature threshold, closed described the first switch; When measured temperature is equal to or greater than described temperature threshold, disconnect closed described the first switch.As shown in Figure 1, the closed positive switch 120 of battery management unit 160 and negative switch 130 so that battery pack 110 in power supply state; Measure the temperature T of battery pack 110; By the temperature T of described battery pack and predetermined temperature threshold T
0compare, alternatively, predetermined temperature threshold T
0can be the temperature of battery pack work efficiency when the highest.When measured temperature T is less than temperature threshold T
0, closed the first switch 150 of battery management unit 160, the first switch 150 is electrically connected to the first resistance 140 in parallel with battery pack 110, after the first resistance 140 energisings, produces heat, thus heating battery group 110.When measured temperature T is equal to or greater than temperature threshold T
0, battery management unit 160 disconnects the first closed switch 150, in the first resistance 140, there is no electric current, no longer produces heat, thereby the temperature T of battery pack 110 is maintained to temperature threshold T
0or make the temperature T of battery pack be reduced to gradually temperature threshold T through heat radiation
0.This mode is used the resistance that self can produce heat after energising as heater element, does not need to be set to the extra power supply of heater element power supply, has simplified the structure of battery circuit, has reduced cost.
The foregoing description of the Vehicular battery group management system in embodiment mono-also be can be applicable to according to the Vehicular battery group management system in embodiment bis-of the present utility model, and the object for concise and to the point, does not repeat them here.
In a word, the Vehicular battery group management system that embodiment of the present utility model provides, provides a kind of quick, reliable and safe scheme, not only can control the temperature of vehicle battery packs, battery can also be disconnected from vehicle load, and effectively by the electric residue electric discharge in vehicle load; Even if battery pack and vehicle load cannot disconnect, also can vehicle load be discharged by resistance, this scheme is effective and reliable; Use the resistance that self can produce heat after energising as heater element, do not need to be set to the extra power supply of heater element power supply, simplified the structure of battery circuit, reduced cost.
Embodiment tri-
According to the third aspect of the present utility model, corresponding to as described in embodiment mono-according to Vehicular battery group management system of the present utility model, a kind of Vehicular battery group management method 200 is provided.
Fig. 4 shows according to the diagram of circuit of the Vehicular battery group management method 200 of the utility model illustrative embodiments.
As shown in Figure 4, method 200 comprises: step S210: between the positive pole of described battery pack and vehicle load, positive switch is in series set; Step S220: between the negative pole of described battery pack and described vehicle load, negative switch is in series set; Step S230: the first resistance and first switch of a series connection are set, and the first resistance of described series connection and the first switch are set to be electrically connected in parallel with described vehicle load; Step S240: closed described positive switch and described negative switch, and closed or disconnect described the first switch to control the temperature of described battery pack; And when vehicle has an accident, disconnect described positive switch and described negative switch, and closed described the first switch is to discharge described vehicle load.
According to illustrative embodiments of the present utility model, wherein in step S240 when having an accident, disconnect described positive switch and described negative switch, and closed described the first switch is can comprise described vehicle load electric discharge: when vehicle has an accident, receive the accident signal of control unit for vehicle or safety air bag control unit; And in response to described accident signal, disconnect described positive switch and described negative switch, and closed described the first switch is to discharge described vehicle load.
According to illustrative embodiments of the present utility model, wherein closed described positive switch and described negative switch in step S240, and closed or disconnect described the first switch and can comprise to control the temperature of described battery: closed described positive switch and described negative switch; Measure the temperature of described battery pack; Measured temperature is compared with predetermined temperature threshold; When measured temperature is less than described temperature threshold, closed described the first switch; When measured temperature is equal to or greater than described temperature threshold, disconnect closed described the first switch.
According to illustrative embodiments of the present utility model, wherein said battery pack comprises a plurality of battery units that are in series electrically connected to, and described method 200 also comprises: described the first resistance is set to equate with the distance between battery unit described in each.
According to illustrative embodiments of the present utility model, wherein said battery pack is dispelled the heat by the air cooling system of described vehicle; And described method 200 also comprises: the air intake place that described the first resistance is arranged on to described air cooling system.
According to illustrative embodiments of the present utility model, wherein said the first resistance is several first resistance that are in series electrically connected to, and described method 200 also comprises: described several first resistance are evenly distributed in around described battery pack.
According to illustrative embodiments of the present utility model, wherein said battery pack is dispelled the heat by the liquid cooling system of described vehicle; And described method 200 also comprises: by described several first resistance near described battery pack.
According to illustrative embodiments of the present utility model, wherein, described battery pack comprises the battery unit of a plurality of series connection, and described method 200 also comprises: each in described several first resistance is electrically connected in parallel with a second switch respectively; And wherein closed described positive switch and described negative switch closed or disconnect described the first switch, the step S240 that controls the temperature of described battery pack comprises: closed described positive switch and described negative switch, and closed described the first switch; Closed or disconnect each in second switch described in several respectively, to control respectively each the temperature in described a plurality of battery unit.
According to illustrative embodiments of the present utility model, described method 200 also comprises: when described positive switch and described negative switch cannot disconnect, closed described the first switch, by the energy of battery pack described in described the first resistance consumption.
According to illustrative embodiments of the present utility model, described method 200 also comprises: at described the first resistance, betal can is set outward.
According to illustrative embodiments of the present utility model, described method 200 also comprises: described the first resistance is set to prism-shaped, cylindric or sheet.
According to illustrative embodiments of the present utility model, described method 200 also comprises: described the first resistance is set to a plurality of pellet resistances in parallel.
According to illustrative embodiments of the present utility model, described method 200 also comprises: pre-charge resistance is in series electrically connected to precharge switch, and the pre-charge resistance of described series connection and described precharge switch are set to be electrically connected in parallel with described positive switch; And in step 240, before closed described positive switch and described negative switch, described method 200 also comprises: disconnect described the first switch and described positive switch; Closed described precharge switch and described negative switch, take by described battery pack is described vehicle load precharge; And after completing, precharge disconnects described precharge switch.
The foregoing description of Vehicular battery group management system 100 in embodiment mono-also be can be applicable to according to the method 200 of vehicle battery packs management of the present utility model, and the object for concise and to the point, does not repeat them here.
In a word, the Vehicular battery group management method that embodiment of the present utility model provides, provides a kind of quick, reliable and safe scheme, not only can control the temperature of vehicle battery packs, battery can also be disconnected from vehicle load, and effectively by the electric residue electric discharge in vehicle load; Even if battery pack and vehicle load cannot disconnect, also can vehicle load be discharged by resistance, this scheme is effective and reliable; Can control respectively each region of battery pack heat around, each battery unit is adjusted respectively to temperature, can control as required the speed that battery pack heats up simultaneously, heat is evenly distributed, so that the heating of all battery units has identical temperature; The a large amount of amount of localized heat that produce in the time of can working to battery circuit manage; Use the resistance that self can produce heat after energising as heater element, do not need to be set to the extra power supply of heater element power supply, simplified the structure of battery circuit, reduced cost; Can effectively avoid the immediate current spike in battery circuit, extend the service life of each parts; In addition, the Vehicular battery group management system that embodiment of the present utility model provides and method be both applicable to use the vehicle of air cooling system, were also applicable to use the vehicle of liquid cooling system.
Embodiment tetra-
According to fourth aspect of the present utility model, corresponding to as described in embodiment bis-according to Vehicular battery group management system of the present utility model, a kind of Vehicular battery group management method 300 is provided.
Fig. 5 shows according to the diagram of circuit of the Vehicular battery group management method 300 of the utility model illustrative embodiments.
As shown in Figure 5, method 300 comprises: step S310: between the positive pole of described battery pack and vehicle load, positive switch is in series set; Step S320: between the negative pole of described battery pack and described vehicle load, negative switch is in series set; Step S330: the first resistance and first switch of a series connection are set, and the first resistance of described series connection and the first switch are set to be electrically connected in parallel with described vehicle load; Step S340: closed described positive switch and described negative switch, and closed or disconnect described the first switch to control the temperature of described battery pack; Whether and when vehicle has an accident, detecting described positive switch and described negative switch cannot disconnect; When described positive switch and described negative switch being detected and cannot disconnect, closed described the first switch, by the energy of battery pack described in described the first resistance consumption.
According to illustrative embodiments of the present utility model, whether cannot disconnect comprise: when vehicle has an accident, receive the accident signal of control unit for vehicle or safety air bag control unit if wherein in step S340, when vehicle has an accident, detecting described positive switch and described negative switch; According to described accident signal, detect described positive switch and described negative switch and whether cannot disconnect.
According to illustrative embodiments of the present utility model, wherein closed described positive switch and described negative switch in step S340, and closed or disconnect described the first switch and comprise to control the temperature of described battery pack: closed described positive switch and described negative switch; Measure the temperature of described battery pack; Measured temperature is compared with predetermined temperature threshold; When measured temperature is less than described temperature threshold, closed described the first switch; When measured temperature is equal to or greater than described temperature threshold, disconnect closed described the first switch.
The foregoing description of Vehicular battery group management system 100 in embodiment bis-also be can be applicable to according to the method 300 of vehicle battery packs management of the present utility model, and the object for concise and to the point, does not repeat them here.
In a word, the Vehicular battery group management system 300 that embodiment of the present utility model provides, provides a kind of quick, reliable and safe scheme, not only can control the temperature of vehicle battery packs, battery can also be disconnected from vehicle load, and effectively by the electric residue electric discharge in vehicle load; Even if battery pack and vehicle load cannot disconnect, also can vehicle load be discharged by resistance, this scheme is effective and reliable; Use the resistance that self can produce heat after energising as heater element, do not need to be set to the extra power supply of heater element power supply, simplified the structure of battery circuit, reduced cost.
In this manual, a large amount of details has been described.Yet, should be appreciated that embodiment of the present utility model can not implement in the situation that there is no these details.In some embodiments, be not shown specifically known method, structure and technology, to do not make reader obscure the understanding to the principle of this specification sheets.
It will be understood by those skilled in the art that and can the module in the device in each embodiment adaptively be changed, and they are arranged in one or more devices different from this embodiment.Except feature or the mutual situation about repelling of processing, can adopt any combination, all modules of disclosed any device in this specification sheets are combined.Unless clearly statement in addition, in this specification sheets disclosed each feature can be by providing identical, be equal to or similar object alternative features replaces.
It should be noted that above-mentioned embodiment describes the utility model rather than the utility model is limited, and those skilled in the art are not in the situation that depart from the scope of claims, can design various alternate embodiments.In claims, the sequence of feature does not also mean that any particular order of feature.In claims, any reference marker that is positioned at bracket should be understood as to limitations on claims.Term " comprises " or " comprising " do not got rid of existence and be not listed as module or step in the claims.Being positioned at term " " before module or step or " one " does not get rid of and has a plurality of such modules or step.The use of term " first ", " second " and " the 3rd " etc. does not represent any order, can be title by these terminological interpretations.
Claims (16)
1. a Vehicular battery group management system, is characterized in that, described system comprises:
Positive switch, is arranged between the anodal and described vehicle load of described battery pack, and described positive switch is in series electrically connected to described battery pack and described vehicle load;
Negative switch, is arranged between the negative pole and described vehicle load of described battery pack, and described negative switch is in series electrically connected to described battery pack and described vehicle load;
The first resistance and the first switch, described the first resistance and described the first switch are in series electrically connected to, and described the first resistance and described first switch of series connection are electrically connected in parallel with described vehicle load;
Battery management unit, for the described positive switch of closure and described negative switch, and closed or disconnect described the first switch to control the temperature of described battery pack; And when vehicle has an accident, disconnect described positive switch and described negative switch, and closed described the first switch is to discharge described vehicle load.
2. the system as claimed in claim 1, wherein said battery management unit and control unit for vehicle or the communication connection of safety air bag control unit; And described battery management unit also for:
When vehicle has an accident, receive the accident signal that control unit for vehicle or safety air bag control unit send; And
In response to described accident signal, disconnect described positive switch and described negative switch, and closed described the first switch is to discharge described vehicle load.
3. the system as claimed in claim 1, wherein said battery management unit also for:
Closed described positive switch and described negative switch;
Measure the temperature of described battery pack;
Measured temperature is compared with predetermined temperature threshold;
When measured temperature is less than described temperature threshold, closed described the first switch; When measured temperature is equal to or greater than described temperature threshold, disconnect closed described the first switch.
4. the system as claimed in claim 1, wherein said battery pack comprises a plurality of battery units that are in series electrically connected to, and described in each, battery unit equates with the distance between described the first resistance.
5. the system as claimed in claim 1, wherein said battery pack is dispelled the heat by the air cooling system of described vehicle, and described the first resistance is arranged on the air intake place of described air cooling system.
6. the system as claimed in claim 1, wherein said the first resistance is several first resistance that are in series electrically connected to, and described several first resistance are evenly distributed in around described battery pack.
7. system as claimed in claim 6, wherein said battery pack is dispelled the heat by the liquid cooling system of described vehicle, and described several first resistance are near described battery pack.
8. the system as described in claim 6 or 7, wherein, described battery pack comprises a plurality of battery units that are in series electrically connected to, described system also comprises:
Several second switches, each of described several second switches is electrically connected in parallel with each in described several first resistance respectively; And
Described battery management unit also for:
Closed described positive switch and described negative switch, and closed described the first switch;
Closed or disconnect each in second switch described in several respectively, to control respectively each the temperature in described a plurality of battery unit.
9. the system as claimed in claim 1, wherein said battery management unit also for:
When described positive switch and described negative switch cannot disconnect, closed described the first switch, by the energy of battery pack described in described the first resistance consumption.
10. the system as claimed in claim 1, also comprises the betal can being arranged on outside described the first resistance.
11. the system as claimed in claim 1, wherein said the first resistance is set to prism-shaped, cylindric or sheet.
12. the system as claimed in claim 1, wherein said the first resistance is set to a plurality of pellet resistances in parallel.
13. the system as claimed in claim 1, also comprise:
Pre-charge resistance and precharge switch, described pre-charge resistance is in series electrically connected to described precharge switch, and the pre-charge resistance of described series connection and described precharge switch are set to be electrically connected in parallel with described positive switch; And
Before the described positive switch of closure and described negative switch, described battery management unit also for:
Disconnect described the first switch and described positive switch;
Closed described precharge switch and described negative switch, take by described battery pack is described vehicle load precharge; And
After completing, precharge disconnects described precharge switch.
14. 1 kinds of Vehicular battery group management systems, comprising:
Positive switch, is arranged between the anodal and described vehicle load of described battery pack, and described positive switch is in series electrically connected to described battery and described vehicle load;
Negative switch, is arranged between the negative pole and described vehicle load of described battery pack, and described negative switch is in series electrically connected to described battery pack and described vehicle load;
It is characterized in that, described system also comprises:
The first resistance and the first switch, described the first resistance and described the first switch are in series electrically connected to, and described the first resistance and described first switch of series connection are electrically connected in parallel with described vehicle load;
Battery management unit, for the described positive switch of closure and described negative switch, and closed or disconnect described the first switch to control the temperature of described battery pack; Whether when vehicle has an accident, detect described positive switch and described negative switch cannot disconnect; And when described positive switch and described negative switch being detected and cannot disconnect, closed described the first switch, by the energy of battery pack described in described the first resistance consumption.
15. systems as claimed in claim 14, wherein said battery management unit also for:
When vehicle has an accident, receive the accident signal of control unit for vehicle or safety air bag control unit;
In response to described accident signal, detect described positive switch and described negative switch and whether cannot disconnect.
16. systems as claimed in claim 14, wherein said battery management unit also for:
Closed described positive switch and described negative switch;
Measure the temperature of described battery pack;
Measured temperature is compared with predetermined temperature threshold;
When measured temperature is less than described temperature threshold, closed described the first switch;
When measured temperature is equal to or greater than described temperature threshold, disconnect closed described the first switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420358348.3U CN203902309U (en) | 2014-06-30 | 2014-06-30 | Management system for vehicle battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420358348.3U CN203902309U (en) | 2014-06-30 | 2014-06-30 | Management system for vehicle battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203902309U true CN203902309U (en) | 2014-10-29 |
Family
ID=51776599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420358348.3U Expired - Lifetime CN203902309U (en) | 2014-06-30 | 2014-06-30 | Management system for vehicle battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203902309U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104924909A (en) * | 2015-06-02 | 2015-09-23 | 金龙联合汽车工业（苏州）有限公司 | High-voltage residual electricity discharging system of electric car |
| CN105216632A (en) * | 2014-06-30 | 2016-01-06 | 观致汽车有限公司 | For Vehicular battery group management system and method |
| CN106828110A (en) * | 2017-03-03 | 2017-06-13 | 镇江海姆霍兹传热传动系统有限公司 | Vehicle high-voltage bus safety protector |
| CN111194472A (en) * | 2017-11-29 | 2020-05-22 | 国际教育协会两合公司 | Electrical system |
-
2014
- 2014-06-30 CN CN201420358348.3U patent/CN203902309U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216632A (en) * | 2014-06-30 | 2016-01-06 | 观致汽车有限公司 | For Vehicular battery group management system and method |
| CN104924909A (en) * | 2015-06-02 | 2015-09-23 | 金龙联合汽车工业（苏州）有限公司 | High-voltage residual electricity discharging system of electric car |
| CN106828110A (en) * | 2017-03-03 | 2017-06-13 | 镇江海姆霍兹传热传动系统有限公司 | Vehicle high-voltage bus safety protector |
| CN111194472A (en) * | 2017-11-29 | 2020-05-22 | 国际教育协会两合公司 | Electrical system |
| CN111194472B (en) * | 2017-11-29 | 2023-07-07 | 国际教育协会两合公司 | Electrical system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105336994A (en) | System and method used for vehicle battery pack management | |
| CN105216632A (en) | For Vehicular battery group management system and method | |
| CN104659442A (en) | Battery temperature raising system and control method thereof | |
| EP3573176B1 (en) | Battery pack heating apparatus and method of battery pack heating control | |
| CN203902309U (en) | Management system for vehicle battery pack | |
| US8890483B2 (en) | Protection circuit, battery pack and charging system | |
| US8198862B2 (en) | Battery pack with balancing management | |
| EP3573174A1 (en) | Battery pack heating apparatus and method of battery pack heating control | |
| US10348107B2 (en) | Battery device | |
| KR102496642B1 (en) | System for controlling temperature of battery and method thereof | |
| JP5359390B2 (en) | Battery temperature control device | |
| CN104488114A (en) | Secondary battery, and secondary battery module and secondary battery pack comprising the same | |
| US20110048485A1 (en) | Integrated battery management system for vehicles | |
| US20130004804A1 (en) | Heating system for a battery module and method of heating the battery module | |
| KR101641762B1 (en) | Apparatus and method for preventing damage of precharge resistance and relay | |
| CN104704697A (en) | In-vehicle electrical storage device and control method thereof | |
| WO2014122904A1 (en) | Cell system | |
| JP2018153074A (en) | Charging device and on-vehicle power supply unit | |
| US8859119B2 (en) | Heating system for a battery module and method of heating the battery module | |
| CN106783392A (en) | The method for operating the contactor in the high-tension circuit of the vehicles | |
| CN204011596U (en) | Vehicular battery group management system | |
| CN204103552U (en) | There is the battery management system of field effect transistor temperature detection | |
| KR101632779B1 (en) | Apparatus and method for preventing damage of precharge resistance and relay | |
| CN104377753A (en) | Battery management system with field-effect tube breakdown detection function | |
| JP5064455B2 (en) | Protection circuit, battery pack, and charging system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Management system and method for vehicle battery pack Effective date of registration: 20170104 Granted publication date: 20141029 Pledgee: American quantum Corporation|Wuhu Chery Automobile Investment Co., Ltd. Pledgor: Ooros Automotive Co., Ltd. Registration number: 2016990001207 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model |