CN209896733U - Vehicle and battery management system - Google Patents
Vehicle and battery management system Download PDFInfo
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- CN209896733U CN209896733U CN201920971237.2U CN201920971237U CN209896733U CN 209896733 U CN209896733 U CN 209896733U CN 201920971237 U CN201920971237 U CN 201920971237U CN 209896733 U CN209896733 U CN 209896733U
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Abstract
The utility model discloses a vehicle and battery management system, wherein, battery management system includes: the first battery pack comprises n single batteries connected in series, the negative electrode of the first battery pack is grounded, and the positive electrode of the first battery pack is connected with the first voltage output end; the second battery pack comprises m single batteries connected in series, the negative electrode of the second battery pack is connected with the positive electrode of the first battery pack, and the positive electrode of the second battery pack is connected with the second voltage output end; the direct-current voltage conversion module is used for converting the first voltage of the second battery pack into the second voltage to charge the first battery pack. According to the utility model discloses a battery management system passes through the higher first group battery of direct compensation discharge capacity with the less second group battery of discharge capacity through direct current voltage conversion module, has effectively improved compensation efficiency, has not only reduced battery management system's calorific capacity, and has reduced compensation power, has shortened compensation time, has improved battery management system's life.
Description
Technical Field
The utility model relates to a vehicle technical field, in particular to vehicle and battery management system.
Background
With the development and planning of energy-saving and new energy automobile industry, the CO of the vehicle is reduced2The 48V battery pack, the 12V battery pack and the dc voltage conversion module can be integrated, wherein the 12V battery pack and the 48V battery pack share 4 single cells. Because 4 battery cells are shared by the 12V battery pack and the 48V battery pack, and the 48V battery pack and the 12V battery pack have different loads, the discharge capacity of the shared 4 battery cells is higher than that of other battery cells, and the service life of the battery pack is greatly reduced.
When the electric quantity of the single batteries is balanced in the related technology, 12 single batteries in the direct current voltage conversion module are powered, and the electric quantity of the shared 4 single batteries is compensated.
However, the electric quantity of the shared 4 single batteries is converted and then compensated for the 4 single batteries, so that the cycle number of the single batteries is increased, the aging of the single batteries is accelerated, and the service life of the battery management system is greatly influenced.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, an object of the utility model is to provide a battery management system, the second group battery that will discharge the volume less passes through the higher first group battery of direct current voltage conversion module direct compensation discharge volume, has effectively improved compensation efficiency, has not only reduced battery management system's calorific capacity, and has reduced compensation power, has shortened compensation time, has improved battery management system's life.
Another object of the present invention is to provide a vehicle.
In order to achieve the above object, the present invention provides a battery management system, including: the first battery pack comprises n single batteries connected in series, the negative electrode of the first battery pack is grounded, and the positive electrode of the first battery pack is connected with a first voltage output end; the second battery pack comprises m single batteries connected in series, the negative electrode of the second battery pack is connected with the positive electrode of the first battery pack, and the positive electrode of the second battery pack is connected with a second voltage output end; the direct current voltage conversion module is used for converting the first voltage of the second battery pack into a second voltage to charge the first battery pack.
Further, the dc voltage conversion module includes: a first end of a primary coil of the transformer is connected with the positive electrode of the second battery pack, and a first end of a secondary coil of the transformer is grounded; a first switch module, a first end of which is connected with a second end of the primary coil of the transformer, and a second end of which is connected with a negative electrode of the second battery pack; a capacitor, a first end of the capacitor being grounded, a second end of the capacitor being connected to a second end of the secondary winding of the transformer; a second terminal of the capacitor is connected with a second terminal of the secondary coil of the transformer through the diode, and an anode of the diode is connected with the second terminal of the secondary coil of the transformer; a first resistor in parallel with the capacitor.
Further, the first switch module is a transistor.
Further, the battery management system further includes: and the negative electrode of the first battery pack is grounded through the second resistor.
Further, the battery management system further includes: the sampling unit, the sampling unit with every the battery cell is connected, is used for every the battery cell's voltage samples, the sampling unit with second ohmic connection is used for right first group battery with the total current of second group battery samples, the sampling unit with the anodal of first group battery is connected, is used for right the charge-discharge current of first group battery samples.
Further, the battery management system further includes: the anode of the second battery pack is connected with the second voltage output end through the second switch module; and the anode of the first battery pack is connected with the first voltage output end through the third switch module.
Further, the battery management system further includes: the main control unit is respectively connected with the sampling unit, the first switch module, the second switch module and the third switch module and used for controlling the first switch module, the second switch module and the third switch module according to the voltage of each single battery, the total current and the charging and discharging current.
Further, n is equal to 4, m is equal to 8, the first voltage output terminal is a 12-volt output terminal, and the second voltage output terminal is a 48-volt output terminal.
According to the utility model discloses a battery management system, accessible direct current voltage conversion module is used for converting the first voltage of second group battery into the second voltage and charges for first group battery. Therefore, the second battery pack with less discharge capacity directly compensates the first battery pack with higher discharge capacity through the direct-current voltage conversion module, so that the compensation efficiency is effectively improved, the heat productivity of the battery management system is reduced, the compensation power is reduced, the compensation time is shortened, the electric quantity balance of the single batteries of the battery management system is realized more quickly, the charge-discharge cycle times of the first battery pack are reduced, and the service life of the battery management system is prolonged; the cost can be effectively reduced due to the reduction of the power of the direct-current voltage conversion module.
In order to achieve the above object, another aspect of the present invention provides a vehicle including the above battery management system.
According to the utility model discloses a vehicle, through foretell battery management system, can pass through the first group battery that the direct current voltage conversion module direct compensation discharge capacity is higher with the second group battery that discharge capacity is less, effectively improved compensation efficiency, not only reduced battery management system's calorific capacity, and reduced compensation power, shortened compensation time, the realization battery management system monomer battery electric quantity's that realizes more quickly is balanced, reduced the charge-discharge cycle number of first group battery simultaneously, improved battery management system's life; the cost can be effectively reduced due to the reduction of the power of the direct-current voltage conversion module.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a block schematic diagram of a battery management system according to an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of a battery management system in the related art;
fig. 3 is a circuit schematic of a battery management system according to an embodiment of the present invention;
fig. 4 is a block schematic diagram of a vehicle according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
A vehicle and a battery management system according to an embodiment of the present invention will be described below with reference to the drawings.
Fig. 1 is a block diagram of a battery management system according to an embodiment of the present invention. As shown in fig. 1, the battery management system 10 includes: a first battery pack 100, a second battery pack 200, and a dc voltage conversion module 300.
The first battery pack 100 includes n single batteries connected in series, a negative electrode of the first battery pack 100 is grounded, and a positive electrode of the first battery pack 100 is connected with a first voltage output end; the second battery pack 200 includes m unit cells connected in series, a cathode of the second battery pack 200 is connected to an anode of the first battery pack 100, and an anode of the second battery pack 200 is connected to a second voltage output terminal. The input positive terminal of the dc voltage conversion module 300 is connected to the positive terminal of the second battery pack 200, the input negative terminal and the output positive terminal of the dc voltage conversion module 300 are respectively connected to the negative terminal of the second battery pack 200, the output negative terminal of the dc voltage conversion module 300 is grounded, the dc voltage conversion module 300 is configured to convert the first voltage of the second battery pack 200 into the second voltage to charge the first battery pack 100, wherein the dc voltage conversion module may be an isolated bidirectional dc voltage conversion module.
Further, in an embodiment of the present invention, n is equal to 4, m is equal to 8, the first voltage output end is 12v voltage output end, and the second voltage output end is 48v voltage output end.
It should be understood that with the development of energy saving and new energy automobile industry, the CO of vehicles is reduced2The discharge of (2) can be realized by integrating a 48V battery pack, a 12V battery pack and a dc voltage conversion module, wherein the 12V battery pack and the 48V battery pack share 4 single batteries. Because the 12V battery pack and the 48V battery pack share 4 single batteries, and the 48V battery pack and the 12V battery pack respectively have different loads, and the charging energy of the single batteries can only come from the 48V battery pack, the discharge capacity of the shared 4 single batteries is higher than that of other single batteries, and the service life of the battery pack is greatly reduced.
In the related art, when the electric quantity of the single batteries is balanced, the electricity is taken from 12 single batteries in the direct current voltage conversion module so as to compensate the electric quantity of the shared 4 single batteries, and the output time of the direct current voltage conversion module is adjusted by calculating the electric quantity to be compensated, so that the electric quantity balance of the single batteries in the battery management system is realized. Specifically, as shown in fig. 2, the battery management system mainly includes: the device comprises a direct-current voltage conversion module, a sampling unit, a main control unit, a battery pack (cells 1'-4', cells 5'-8', cells 9'-12') and a shunt resistor shunt. Wherein, black thick line adds reference ground for direct current voltage conversion module input/output sharing, when compensating the electric quantity for 4 battery cells of sharing, direct current voltage conversion module gets the electricity from 12 battery cells at every turn to for 4 battery cell compensation electric quantities of sharing, not only get the electricity from the more 8 battery cells of electric quantity promptly, get the electricity from the 4 battery cells of sharing that need compensate the electric quantity moreover. Because the conversion efficiency of the direct current voltage conversion module cannot reach 100%, certain electric quantity loss exists, and therefore, a part of electric quantity is wasted by the direct current voltage conversion module to generate heat, and the heat dissipation burden of the battery management system is aggravated. The service life of the single battery is related to the service time and the number of times of the single battery cyclic charging, the electric quantity of the shared 4 single batteries is converted and then compensated to the 4 single batteries, the cycle number of the single battery is increased, the output quantity of the single battery is increased, the aging of the single battery is accelerated, and the service life of a battery management system is further influenced.
Therefore, in order to solve the above problem, an embodiment of the present invention provides a battery management system 10, in which a second battery pack with a smaller discharge capacity directly compensates a first battery pack with a higher discharge capacity through a dc voltage conversion module, so as to effectively improve compensation efficiency, reduce heat generation of the battery management system, reduce compensation power, shorten compensation time, more quickly achieve balance of electric quantity of single batteries of the battery management system, reduce charge and discharge cycle times of the first battery pack, and improve service life of the battery management system; the cost can be effectively reduced due to the reduction of the power of the direct-current voltage conversion module.
For example, as shown in fig. 3, the battery management system 10 includes a first battery pack 100, a second battery pack 200, and a dc voltage conversion module 300. The first battery pack 100 may include 4 unit cells (e.g., Cell1-4), a cathode of the first battery pack 100 is grounded, and an anode of the first battery pack 100 is connected to a first voltage output terminal (e.g., 12V out); the second battery pack 200 may include 8 unit cells (e.g., Cell5-8, Cell9-12), a cathode of the second battery pack 200 is connected to an anode of the first battery pack 100, and an anode of the second battery pack 200 is connected to a second voltage output terminal (e.g., 48V out); the positive input terminal (e.g., IN +) of the dc voltage conversion module 300 is connected to the positive terminal of the second battery pack 200, the negative input terminal (e.g., IN-) and the positive output terminal (e.g., OUT +) of the dc voltage conversion module 300 are respectively connected to the negative terminal of the second battery pack 200, the negative output terminal (e.g., OUT-) of the dc voltage conversion module 300 is grounded, and the dc voltage conversion module 300 can convert the first voltage of the second battery pack 200 into the second voltage to charge the first battery pack 100, where the first voltage may be 32V and the second voltage may be 16V.
For example, assuming that the first voltage output terminal (12V output terminal) has a power loss of 90WH, the conversion efficiency of the dc voltage conversion module 300 is 90%, assuming that the power compensation is performed under the ideal condition, the original ideal charging amount of the battery management system 10 is QAH, the input terminal voltage of the dc voltage conversion module 300, that is, the voltage of the second battery pack 200(cell5-12) is 32V, and the output terminal voltage is 16V under the ideal condition, therefore, when the first battery pack 100 is compensated, it is necessary that the dc voltage conversion module 300 inputs xAH at the input terminal and outputs yAH to the first voltage output terminal, and thus, the following formula can be used to calculate:
32*x*90％＝16*y； ①
Q-x＝Q-90/16+y； ②
calculated by formulas (i) and (ii), x is 2.01 AH; y is 3.62 AH.
That is, in an ideal state, second battery pack 200 compensates the first battery pack 100 for 2.01AH of power, and thus, the power can be balanced. Therefore, the second battery pack with less discharge capacity directly compensates the first battery pack with higher discharge capacity through the direct-current voltage conversion module, the compensation efficiency is effectively improved, the heat productivity of the battery management system is reduced, the compensation power is reduced, the compensation time is shortened, the charging and discharging times of the first battery pack are reduced, and the service life of the battery management system is prolonged.
It should be noted that, in actual operation, since the voltages of the battery packs in different states of Charge are different and may not be ideal 32V, 16V, etc., the conversion efficiency of the dc voltage conversion module 300 is also different, so that some fine adjustment can be made according to the voltage value sampled in real time and the actual State of Charge (SOC). Simultaneously, the numerical value of foretell m, n, first voltage output end, second voltage output end, first voltage and second voltage is the exemplar, does not regard as right the utility model discloses a restriction specifically can adjust according to actual conditions, does not do here specifically and restricts.
Wherein, according to an embodiment of the present invention, as shown in fig. 3, the dc voltage converting module 300 includes: the circuit comprises a transformer T1, a first switch module Q1, a capacitor C1, a diode D1 and a first resistor R1. A first terminal of a primary coil of transformer T1 is connected to the positive electrode of second battery pack 200, and a first terminal of a secondary coil of transformer T1 is grounded. A first terminal of the first switching module Q1 is connected to a second terminal of the primary coil of the transformer T1, and a second terminal of the first switching module Q1 is connected to the negative electrode of the second battery pack 200. A first end of the capacitor C1 is grounded, and a second end of the capacitor C2 is connected with a second end of the secondary coil of the transformer T1; and a diode D1. The second terminal of the capacitor C1 is connected to the second terminal of the secondary winding of the transformer T1 through a diode D1, and the anode of the diode D1 is connected to the second terminal of the secondary winding of the transformer T1.
Alternatively, according to an embodiment of the present invention, the first switch module Q1 may be a transistor.
It should be understood that a transformer is a device for changing voltage using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil, and an iron core; a transistor is a solid semiconductor device having a plurality of functions such as detection, rectification, amplification, switching, voltage stabilization, signal modulation, and the like, and is a variable current switch capable of controlling an output current based on an input voltage.
In general, in a power line, electric devices are mainly resistive loads (such as incandescent lamps, electric furnaces, and the like), inductive loads (such as motors and electric appliances with coils), and the inductive loads occupy most of the total amount of electricity; because the characteristic that the current of the inductive load lags behind the voltage is adopted, the power factor on the line is reduced, and the capacity of effectively doing work of the output power is greatly reduced, so that the phenomenon that the power factor of the line is reduced when the inductive load works is offset by connecting a compensation capacitor to the output line of the transformer through the characteristic that the voltage of the capacitor lags behind the current, and the power factor is improved.
It should be understood that, as shown in fig. 3, by connecting the capacitor C1 in parallel with the primary winding of the transformer T1, the reactive loss in the circuit can be effectively compensated, and the power factor can be improved, and the first resistor R1 is connected in parallel with the capacitor C1 and then connected in series with the diode D1, so that the influence of the reverse peak voltage on the diode D1 can be effectively suppressed, and the diode can be protected from possible damage due to insufficient withstand voltage.
Therefore, according to the utility model discloses battery management system, accessible direct current voltage conversion module is used for converting the first voltage of second group battery into the second voltage and charges for first group battery. Therefore, the embodiment of the present invention provides a scheme for isolating the dc voltage conversion module 300, in which the second battery pack with less discharge capacity directly compensates the first battery pack with higher discharge capacity through the dc voltage conversion module, so as to effectively improve the compensation efficiency, reduce the heat generation amount of the battery management system, reduce the compensation power, shorten the compensation time, more quickly realize the balance of the electric quantity of the single batteries of the battery management system, reduce the charge and discharge cycle times of the first battery pack, and prolong the service life of the battery management system; the cost can be effectively reduced due to the reduction of the power of the direct-current voltage conversion module.
Further, according to an embodiment of the present invention, as shown in fig. 3, the battery management system further includes: and a second resistor R2, and the negative electrode of the first battery pack 100 is grounded through the second resistor R2.
It should be appreciated that the second resistor R2 may be a shunt resistor, which can be used for shunting and sampling current.
Further, according to an embodiment of the present invention, as shown in fig. 3, the battery management system further includes: a sampling unit 400. The sampling unit 400 is connected to each single battery and is configured to sample a voltage of each single battery, the sampling unit 400 is connected to the second resistor R2 and is configured to sample a total current of the first battery pack 100 and the second battery pack 200, and the sampling unit 400 is connected to a positive electrode of the first battery pack 100 and is configured to sample a charging and discharging current of the first battery pack 100.
It can be understood that the sampling unit 400 is connected to the second resistor R2, and can be used to collect the voltage of each single battery, the total current of the first battery pack 100, the total current of the second battery pack 200, and the charging and discharging current of the first battery pack 100.
Further, according to an embodiment of the present invention, as shown in fig. 3, the battery management system further includes: a second switching module K1 and a third switching module K2. The positive electrode of the second battery pack 200 is connected to the second voltage output terminal through the second switch module K1; the positive electrode of the first battery pack 100 is connected to the first voltage output terminal through the third switching module K2.
Further, according to an embodiment of the present invention, as shown in fig. 3, the battery management system further includes: a master control unit 500. The main control unit 500 is connected to the sampling unit 400, the first switch module Q1, the second switch module K1, and the third switch module K2, and is configured to control the first switch module Q1, the second switch module K2, and the third switch module K3 according to the voltage, the total current, and the charging and discharging current of each battery cell.
It can be understood that the main control unit 500 may calculate and evaluate the battery charge states of the first battery pack 100 and the second battery pack 200, and control the first switch module Q1, the second switch module K2, and the third switch module K3 according to the calculation results, so as to effectively control and manage the input and output of the dc voltage conversion module 300, and achieve the electric quantity balance of the single batteries in the battery management system 10, thereby maximizing the available capacity of the single batteries and ensuring the stable operation of the battery management system 10.
According to the utility model discloses battery management system that the embodiment provided, accessible direct current voltage conversion module is used for converting the first voltage of second group battery into the second voltage and charges for first group battery. Therefore, the second battery pack with less discharge capacity directly compensates the first battery pack with higher discharge capacity through the direct-current voltage conversion module, so that the compensation efficiency is effectively improved, the heat productivity of the battery management system is reduced, the compensation power is reduced, the compensation time is shortened, the electric quantity balance of the single batteries of the battery management system is realized more quickly, the charge-discharge cycle times of the first battery pack are reduced, and the service life of the battery management system is prolonged; the cost can be effectively reduced due to the reduction of the power of the direct-current voltage conversion module.
Fig. 4 is a block diagram of a vehicle according to an embodiment of the present invention. As shown in fig. 4, the vehicle 20 includes the battery management system 10 described above.
According to the embodiment of the utility model provides a vehicle, through foretell battery management system, can pass through the higher first group battery of direct current voltage conversion module direct compensation discharge capacity with the less second group battery of discharge capacity, effectively improved compensation efficiency, not only reduced battery management system's calorific capacity, and reduced compensation power, shortened compensation time, the balanced of realization battery management system monomer battery electric quantity more quickly, reduced the charge-discharge cycle number of first group battery simultaneously, improved battery management system's life; the cost can be effectively reduced due to the reduction of the power of the direct-current voltage conversion module.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (9)
1. A battery management system, comprising:
the first battery pack comprises n single batteries connected in series, the negative electrode of the first battery pack is grounded, and the positive electrode of the first battery pack is connected with a first voltage output end;
the second battery pack comprises m single batteries connected in series, the negative electrode of the second battery pack is connected with the positive electrode of the first battery pack, and the positive electrode of the second battery pack is connected with a second voltage output end;
the direct current voltage conversion module is used for converting the first voltage of the second battery pack into a second voltage to charge the first battery pack.
2. The battery management system of claim 1, wherein the dc voltage conversion module comprises:
a first end of a primary coil of the transformer is connected with the positive electrode of the second battery pack, and a first end of a secondary coil of the transformer is grounded;
a first switch module, a first end of which is connected with a second end of the primary coil of the transformer, and a second end of which is connected with a negative electrode of the second battery pack;
a capacitor, a first end of the capacitor being grounded, a second end of the capacitor being connected to a second end of the secondary winding of the transformer;
a second terminal of the capacitor is connected with a second terminal of the secondary coil of the transformer through the diode, and an anode of the diode is connected with the second terminal of the secondary coil of the transformer;
a first resistor in parallel with the capacitor.
3. The battery management system of claim 2, wherein the first switching module is a transistor.
4. The battery management system of claim 2, further comprising:
and the negative electrode of the first battery pack is grounded through the second resistor.
5. The battery management system of claim 4, further comprising:
the sampling unit, the sampling unit with every the battery cell is connected, is used for every the battery cell's voltage samples, the sampling unit with second ohmic connection is used for right first group battery with the total current of second group battery samples, the sampling unit with the anodal of first group battery is connected, is used for right the charge-discharge current of first group battery samples.
6. The battery management system of claim 5, further comprising:
the anode of the second battery pack is connected with the second voltage output end through the second switch module;
and the anode of the first battery pack is connected with the first voltage output end through the third switch module.
7. The battery management system of claim 6, further comprising:
the main control unit is respectively connected with the sampling unit, the first switch module, the second switch module and the third switch module and used for controlling the first switch module, the second switch module and the third switch module according to the voltage of each single battery, the total current and the charging and discharging current.
8. The battery management system of claim 1, wherein n is equal to 4, wherein m is equal to 8, wherein the first voltage output is a 12 volt output, and wherein the second voltage output is a 48 volt output.
9. A vehicle, characterized by comprising: the battery management system of any of claims 1-8.
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| CN201920971237.2U CN209896733U (en) | 2019-06-25 | 2019-06-25 | Vehicle and battery management system |
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| CN201920971237.2U CN209896733U (en) | 2019-06-25 | 2019-06-25 | Vehicle and battery management system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11731529B2 (en) | 2020-12-16 | 2023-08-22 | Contemporary Amperex Technology Co., Limited | Power supply apparatus, battery management system, power supply system, control method and medium |
| CN116742106A (en) * | 2022-10-11 | 2023-09-12 | 荣耀终端有限公司 | Battery module, charging control method and electronic equipment |
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2019
- 2019-06-25 CN CN201920971237.2U patent/CN209896733U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11731529B2 (en) | 2020-12-16 | 2023-08-22 | Contemporary Amperex Technology Co., Limited | Power supply apparatus, battery management system, power supply system, control method and medium |
| CN116742106A (en) * | 2022-10-11 | 2023-09-12 | 荣耀终端有限公司 | Battery module, charging control method and electronic equipment |
| CN116742106B (en) * | 2022-10-11 | 2024-05-17 | 荣耀终端有限公司 | Battery module, charging control method and electronic equipment |
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