A new type of truck lithium battery with integrated starting

Abstract

The utility model discloses a novel truck lithium battery of parking and starting integration, including positive output column, negative output column, energy storage unit, BMS control unit, electronic switch unit and super capacitor module, and energy storage unit is composed of the series connection of multiple series lithium battery core, and the positive pole of energy storage unit and the positive pole of super capacitor module all are connected with positive output column, and the negative pole of energy storage unit is connected with negative output column through electronic switch unit, and the negative pole of super capacitor module is connected with negative output column, and the voltage detection end of BMS control unit is connected with energy storage unit, and the control end of BMS control unit is connected with electronic switch unit. The utility model effectively solves the problem that the original car power supply lead acid battery exists unenvironmental protection, battery capacity is insufficient and the parking lithium battery can not directly match most vehicle types.

Description

Technical Field

[0001] This utility model relates to the field of truck power supply equipment technology, specifically to a novel truck lithium battery that integrates start-stop and parking functions. Background Technology

[0002] With increasing environmental protection requirements and user comfort demands, long-haul truck drivers are becoming increasingly reliant on electrical equipment such as air conditioners, onboard refrigerators, and electric kettles during rest stops. Parking power needs have become a key factor affecting the driver's experience. Currently, the original power supply systems for most mainstream trucks still primarily use lead-acid batteries. These batteries have the following shortcomings in practical applications: 1. The original vehicle power supply lead-acid battery contains heavy metals such as lead and mercury. If not handled properly during production, use and recycling, it can easily cause environmental problems such as soil heavy metal pollution and groundwater pollution, which is not in line with the current environmental protection trend. 2. The original lead-acid battery has a limited capacity and cannot meet the long-term power needs of equipment such as air conditioning and water heating when the vehicle is parked. The driver needs to start the engine to charge the battery or directly use the engine to drive the air conditioning, which increases fuel consumption. 3. Although existing parking lithium batteries on the market can solve the capacity problem, they are generally composed of eight lithium cells in series, and their voltage platform is generally higher than that of the original lead-acid battery. This means that most models cannot be directly matched, requiring additional circuit modification, which increases the cost of use and safety risks.

[0003] In summary, existing technologies cannot simultaneously meet the power requirements of trucks for environmental protection, high adaptability, and long range. There is an urgent need for a new type of power supply equipment that can directly replace lead-acid batteries and also has starting and parking functions. Utility Model Content

[0004] In order to overcome the problems of existing lead-acid batteries for vehicle power supply being environmentally unfriendly and having insufficient battery capacity, and parking lithium batteries being unable to be directly matched with most vehicle models, this utility model provides a new type of truck lithium battery that integrates start-stop and parking functions.

[0005] The technical solution of this utility model is as follows: A novel truck lithium battery with integrated start-stop system includes a positive output post, a negative output post, an energy storage unit, a BMS control unit, an electronic switch unit, and a supercapacitor module. The energy storage unit is composed of multiple lithium battery cells connected in series. The positive terminals of the energy storage unit and the supercapacitor module are both connected to the positive output post. The negative terminal of the energy storage unit is connected to the negative output post through the electronic switch unit. The negative terminal of the supercapacitor module is also connected to the negative output post. The voltage detection terminal of the BMS control unit is connected to the energy storage unit, and the control terminal of the BMS control unit is connected to the electronic switch unit.

[0006] As a preferred embodiment of this utility model, the energy storage unit is composed of seven lithium battery cells connected in series.

[0007] As a preferred embodiment of this utility model, it further includes a cell voltage detection unit, and the voltage detection terminal of the BMS control unit is connected to the energy storage unit through the cell voltage detection unit.

[0008] In a preferred embodiment of this utility model, the electronic switch unit includes a charging electronic switch and a discharging electronic switch. The input terminal and output terminal of the charging electronic switch are respectively connected to the negative terminal and the negative terminal output post of the energy storage unit. The control terminal of the charging electronic switch is connected to the control terminal of the BMS control unit. The input terminal and output terminal of the discharging electronic switch are respectively connected to the negative terminal and the negative terminal output post of the energy storage unit. The control terminal of the discharging electronic switch is connected to the control terminal of the BMS control unit.

[0009] In a preferred embodiment of this utility model, both the charging electronic switch and the discharging electronic switch are composed of MOS transistors.

[0010] As a preferred embodiment of this utility model, the supercapacitor module includes a supercapacitor group composed of multiple supercapacitors connected in series and a charging and discharging unit. The positive terminal of the supercapacitor group is connected to the positive output post, and the negative terminal of the supercapacitor group is connected to the negative output post through the charging and discharging unit.

[0011] In a preferred embodiment of this utility model, the charging and discharging unit includes a MOSFET Q13, a transistor Q14, Zener diodes D1, D2, and D3, a capacitor C13, resistors R57, R58, R59, and R60, and a resistor network composed of multiple resistors. The first terminal of the MOSFET Q13 is connected to the negative terminal of the supercapacitor group, one end of the resistor network, the negative terminal of Zener diodes D1 and D2, and the positive terminal of Zener diode D3. The second terminal of the MOSFET Q13 is connected to one end of the resistor network, the positive terminal of Zener diode D1, and the positive terminal of Zener diode D3. The positive terminal of the Zener diode D2, the positive output terminal, one end of the resistor R57, one end of the capacitor C13, and ground are connected. The third terminal of the MOSFET Q13 is connected to the other end of the resistor R57, the other end of the capacitor C13, and one end of the resistor R60. The first terminal of the transistor Q14 is connected to one end of the resistor R58 and one end of the resistor R59. The other end of the resistor R58 is connected to the negative terminal of the Zener diode D3. The second terminal of the transistor Q14 is connected to the other end of the resistor R59 and the positive output terminal. The third terminal of the transistor Q14 is connected to the other end of the resistor R60.

[0012] As a preferred embodiment of this utility model, the supercapacitor module further includes multiple equalization units, the number of which is the same as the number of supercapacitors, and each equalization unit is connected in parallel with a corresponding supercapacitor.

[0013] In a preferred embodiment of this utility model, the equalization unit includes a voltage regulator U1, a transistor Q1, resistors R1, R7, R17, R25, R62, and R71. The first terminal of the voltage regulator U1 is connected to one end of resistor R25 and one end of resistor R62. The second terminal of the voltage regulator U1 is connected to the first terminal of transistor Q1 and one end of resistor R71 via resistor R17. The third terminal of the voltage regulator U1 is connected to one end of resistor R1, one end of resistor R7, the other end of resistor R62, and the corresponding negative terminal of the supercapacitor. The second terminal of transistor Q1 is connected to the other end of resistor R71, the other end of resistor R25 (i.e., the positive terminal of the supercapacitor), and the third terminal of transistor Q1 is connected to the other end of resistor R1 and the other end of resistor R7.

[0014] As a preferred embodiment of the present invention, it further includes a temperature detection unit for detecting the temperature of the energy storage unit, the temperature detection unit being connected to the BMS control unit.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a novel truck lithium battery with integrated start-stop system. Through the combined design of an energy storage unit, a BMS control unit, an electronic switch unit, and a supercapacitor module, it achieves a complete replacement for traditional lead-acid batteries. By replacing lead-acid batteries containing lead and mercury with lithium battery cells, it reduces heavy metal pollution throughout the entire lifecycle from production and use to recycling, which is in line with current environmental protection trends. At the same time, it can support the long-term operation of equipment such as air conditioners and electric kettles, reducing the frequency of drivers starting the engine to charge and lowering fuel consumption. It abandons the mainstream eight-cell lithium battery design in the market and adopts a seven-cell design, making its voltage platform match the original lead-acid battery, allowing for direct replacement without modification, reducing usage costs and safety risks. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a novel truck lithium battery with integrated start-stop system in one embodiment of the present invention. Figure 2 This is a circuit diagram of the BMS control unit in one embodiment of the present invention; Figure 3 This is a circuit diagram of the energy storage unit in one embodiment of the present invention; Figure 4 This is a schematic diagram of a novel truck lithium battery with integrated start-stop system, as described in another embodiment of the present invention. Figure 5 This is a circuit diagram of the cell voltage detection unit in one embodiment of the present invention; Figure 6 This is a circuit diagram of the electronic switch unit in one embodiment of the present invention; Figure 7 This is a circuit diagram of a supercapacitor module in one embodiment of the present invention; Figure 8 This is a circuit diagram of the charging and discharging unit in one embodiment of the present invention; Figure 9 This is a circuit diagram of the equalization unit in one embodiment of the present invention; Figure 10 This is a circuit diagram of the temperature detection unit in one embodiment of the present invention. Detailed Implementation

[0018] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. It is also declared that the embodiments described below are only for explaining this utility model and are not intended to limit this utility model.

[0019] It should be noted that the terms "installation," "setting," "connection," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly defined. Indications of orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. The terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implying a number of technical features. "A plurality of" means two or more, unless otherwise explicitly defined. "Several" means one or more, unless otherwise explicitly defined.

[0020] Please see Figures 1 to 3 This embodiment provides a novel truck lithium battery with integrated start-stop system, including a positive output post 1, a negative output post 2, an energy storage unit 3, a BMS control unit 4, an electronic switch unit 5, and a supercapacitor module 6. The energy storage unit 3 is composed of multiple lithium battery cells connected in series. The positive terminals of the energy storage unit 3 and the supercapacitor module 6 are both connected to the positive output post 1. The negative terminal of the energy storage unit 3 is connected to the negative output post 2 through the electronic switch unit 5. The negative terminal of the supercapacitor module 6 is connected to the negative output post 2. The voltage detection terminal of the BMS control unit 4 is connected to the energy storage unit 3, and the control terminal of the BMS control unit 4 is connected to the electronic switch unit 5. The electronic switch unit 5 includes a charging electronic switch 51 and a discharging electronic switch 52. The input and output terminals of the charging electronic switch 51 are connected to the negative terminal and negative output post 2 of the energy storage unit 3, respectively. The control terminal of the charging electronic switch 51 is connected to the control terminal of the BMS control unit 4. The input and output terminals of the discharging electronic switch 52 are connected to the negative terminal and negative output post 2 of the energy storage unit 3, respectively. The control terminal of the discharging electronic switch 52 is connected to the control terminal of the BMS control unit 4. In use, the positive output post 1 and negative output post 2 are simply connected to the positive and negative terminals of the truck power supply system.

[0021] The BMS control unit 4 controls the on / off state of the electronic switch unit 5 based on the detected voltage of the energy storage unit 3, thereby controlling the charging and discharging of the energy storage unit 3. Specifically, when the energy storage unit 3 is charging, if the BMS control unit 4 detects that the voltage of the energy storage unit 3 has reached a preset high voltage (e.g., 26V), it controls the charging electronic switch 51 to open, preventing the on-board generator from continuing to charge the energy storage unit 3, thus providing overcharge protection. When the energy storage unit 3 is discharging, if the BMS control unit 4 detects that the voltage of the energy storage unit 3 has reached a preset low voltage (e.g., 20V), it controls the discharging electronic switch 52 to open. At this time, the energy storage unit 3 has about 10%-20% of its charge remaining, requiring some charge to start the truck, thus providing over-discharge protection.

[0022] When the charging of energy storage unit 3 is turned off, the on-board generator switches the charging target to supercapacitor module 6 and charges it until its voltage matches the output voltage of the on-board generator. After the on-board generator shuts down, the vehicle's power supply is provided by energy storage unit 3 and the supercapacitor. When the discharging of energy storage unit 3 is turned off, supercapacitor module 6 discharges. Supercapacitor module 6 serves to maintain stable output of the on-board generator when the BMS control unit 4 turns off the charging and discharging of energy storage unit 3, preventing the truck's on-board generator from dropping its load and causing a sudden power outage for the entire vehicle.

[0023] In this embodiment, the energy storage unit 3 consists of seven series-connected lithium battery cells, instead of the eight series-connected lithium battery cells commonly used in the market. The voltage platform of the energy storage unit 3, composed of seven series-connected lithium battery cells, is consistent with the voltage of existing lead-acid batteries used in trucks, requiring no additional circuit modifications and can be directly adapted to most truck models.

[0024] This embodiment of the new truck lithium battery with integrated start-stop system achieves a complete replacement of traditional lead-acid batteries through the combined design of energy storage unit 3, BMS control unit 4, electronic switch unit 5, and supercapacitor module 6. By replacing lead-acid batteries containing lead and mercury with lithium battery cells, heavy metal pollution is reduced throughout the entire lifecycle from production and use to recycling, which is in line with current environmental protection trends. At the same time, it can support the long-term operation of equipment such as air conditioners and electric kettles, reducing the frequency of drivers starting the engine to charge and reducing fuel consumption. It abandons the mainstream eight-cell lithium battery design in the market and adopts a seven-cell design, so that its voltage platform matches the original lead-acid battery, allowing for direct replacement without modification, reducing usage costs and safety risks.

[0025] Please see Figure 4 , Figure 5In one embodiment, the novel truck lithium battery with integrated start-stop system also includes a cell voltage detection unit 7. The voltage detection terminal of the BMS control unit 4 is connected to the energy storage unit 3 through the cell voltage detection unit 7. The cell voltage detection unit 7 is used to collect the voltage of each string of lithium cells in the energy storage unit 3 and feed it back to the BMS control unit 4. In this embodiment, the cell voltage detection unit 7 can collect the voltage of each string of lithium cells in the energy storage unit 3 in real time. Compared with only detecting the overall voltage of the energy storage unit 3, it can provide a more detailed understanding of the working status of each cell and promptly detect any abnormalities that may occur in individual cells. For example, if the voltage of a certain string of lithium cells is too high or too low, the BMS control unit 4 can immediately detect it and trigger protection to prevent the local fault from escalating, thereby improving the reliability and stability of the entire battery system.

[0026] Please see Figure 6 In one embodiment, both the charging electronic switch 51 and the discharging electronic switch 52 are composed of MOSFETs. MOSFETs are characterized by fast switching speed, enabling them to quickly respond to the control signals of the BMS control unit 4 and achieve rapid switching of the charging electronic switch 51 and the discharging electronic switch 52. When the energy storage unit 3 reaches the preset voltage, it can quickly cut off the charging or discharging circuit, reducing damage to the lithium battery cell from overcharging or over-discharging and improving the battery's lifespan. Using MOSFETs to form the electronic switch unit 5 can reduce the probability of switch failure, ensure the stable operation of the battery system under various operating conditions, and reduce problems such as battery damage or abnormal truck power supply caused by switch failure.

[0027] Please see Figure 7 , Figure 8 In one embodiment, the supercapacitor module 6 includes a supercapacitor bank 61 composed of multiple (e.g., twelve) supercapacitors connected in series and a charging / discharging unit 62. The positive terminal of the supercapacitor bank 61 is connected to the positive output post 1, and the negative terminal of the supercapacitor bank 61 is connected to the negative output post 2 through the charging / discharging unit 62. By setting a dedicated charging / discharging unit 62 to control the charging and discharging of the supercapacitor bank 61, the charging and discharging process of the supercapacitor module 6 can be flexibly adjusted according to actual needs. After the energy storage unit 3 is turned off for charging, the electrical energy of the vehicle generator can be transferred to the supercapacitor module 6 for charging more effectively; after the energy storage unit 3 is turned off for discharging, the discharging of the supercapacitor module 6 can also be better controlled, providing stable power support for the truck. The combined design of the supercapacitor bank 61 and the charging / discharging unit 62 can effectively maintain the stable output of the vehicle generator; when the charging and discharging of the energy storage unit 3 is turned off by the BMS control unit 4, the supercapacitor module 6 can replenish or release electrical energy in a timely manner through the charging / discharging unit 62, avoiding load shedding of the truck's vehicle generator, preventing sudden power outages of the entire vehicle, and improving the stability and reliability of the truck's power supply system.

[0028] Specifically, the charging / discharging unit 62 includes a MOSFET Q13, a transistor Q14, Zener diodes D1, D2, and D3, a capacitor C13, resistors R57, R58, R59, and R60, and a resistor network composed of multiple resistors (such as R15, R16, R23, R24, R31, and R32). The first terminal of the MOSFET Q13 is connected to the negative terminal of the supercapacitor group 61, one end of the resistor network, the negative terminal of Zener diodes D1 and D2, and the positive terminal of Zener diode D3. The second terminal of the MOSFET Q13 is connected to the resistor network... One end of the transistor is connected to the positive terminal of Zener diode D1, the positive terminal of Zener diode D2, positive output terminal 1, one end of resistor R57, one end of capacitor C13, and ground. The third terminal of MOSFET Q13 is connected to the other end of resistor R57, the other end of capacitor C13, and one end of resistor R60. The first terminal of transistor Q14 is connected to one end of resistor R58 and one end of resistor R59. The other end of resistor R58 is connected to the negative terminal of Zener diode D3. The second terminal of transistor Q14 is connected to the other end of resistor R59 and positive output terminal 1. The third terminal of transistor Q14 is connected to the other end of resistor R60. In the charging and discharging unit 62, the MOSFET Q13 serves as a key switching element, enabling rapid response to control signals and control of the charging and discharging circuit of the supercapacitor bank 61. The resistor network divides and limits the current, while the Zener diodes D1, D2, and D3 ensure that the voltage remains stable within a suitable range. This allows the supercapacitor bank 61 to absorb energy at a suitable rate during charging and to output energy stably during discharging, preventing overcharging or over-discharging from damaging the supercapacitor and extending its lifespan.

[0029] Please see Figure 7 , Figure 9 In one embodiment, the supercapacitor module 6 further includes multiple equalization units 63, the number of which is the same as the number of supercapacitors, and each equalization unit 63 is connected in parallel with a corresponding supercapacitor. When multiple supercapacitors are used in series, the voltage of each supercapacitor may be inconsistent due to individual differences and other factors. Supercapacitors with excessively high voltage are prone to premature failure, while supercapacitors with excessively low voltage cannot fully perform. By setting up equalization units 63, the voltage of each supercapacitor can be ensured to be consistent, avoiding premature failure of individual supercapacitors due to abnormal voltage, thereby extending the service life of the entire supercapacitor module 6.

[0030] Specifically, the equalization unit 63 includes a voltage regulator U1, a transistor Q1, resistors R1, R7, R17, R25, R62, and R71. The first terminal of the voltage regulator U1 is connected to one end of resistor R25 and one end of resistor R62. The second terminal of the voltage regulator U1, after passing through resistor R17, is connected to the first terminal of transistor Q1 and one end of resistor R71. The third terminal of the voltage regulator U1 is connected to one end of resistor R1, one end of resistor R7, the other end of resistor R62, and the negative terminal of the corresponding supercapacitor. The second terminal of the transistor Q1 is connected to the other end of resistor R71, the other end of resistor R25 (i.e., the positive terminal of the corresponding supercapacitor), and the third terminal of transistor Q1 is connected to the other end of resistor R1 and the other end of resistor R7. In the equalization unit 63, the voltage regulator U1 is the core component. It can monitor the voltage of the corresponding supercapacitor in real time and adjust the voltage through cooperation with other resistors and transistor Q1. When the voltage of a certain supercapacitor is higher than that of other supercapacitors, the voltage regulator U1 will output a corresponding control signal to turn on or off the transistor Q1. The voltage is then shunted or adjusted through the resistor network to reduce the voltage of the supercapacitor to the same level as that of the other capacitors.

[0031] Please see Figure 4 , Figure 10 In one embodiment, the novel truck lithium battery with integrated start-stop system also includes a temperature detection unit 8 for detecting the temperature of the energy storage unit 3, which is connected to the BMS control unit 4. The temperature detection unit 8 can monitor the temperature of the energy storage unit 3 in real time and accurately feed the temperature information back to the BMS control unit 4. During truck operation, the temperature of the energy storage unit 3 may rise due to factors such as charging / discharging processes and changes in ambient temperature. Through the temperature detection unit 8, the BMS control unit 4 can promptly understand the temperature status of the energy storage unit 3. When the temperature exceeds a set safety threshold, it takes corresponding protective measures, such as reducing the charging / discharging current or suspending charging / discharging, to prevent the energy storage unit 3 from being damaged due to overheating and ensure the safe operation of the battery.

[0032] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

[0033] The present utility model patent has been described above with reference to the accompanying drawings. Obviously, the implementation of the present utility model patent is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present utility model patent, or the direct application of the inventive concept and technical solution of the present utility model patent to other occasions without modification, are all within the protection scope of the present utility model.

Claims

1. A novel truck lithium battery with integrated start-stop system, characterized in that, The device includes a positive output post, a negative output post, an energy storage unit, a BMS control unit, an electronic switch unit, and a supercapacitor module. The energy storage unit is composed of multiple lithium-ion battery cells connected in series. The positive terminals of the energy storage unit and the supercapacitor module are both connected to the positive output post. The negative terminal of the energy storage unit is connected to the negative output post through the electronic switch unit. The negative terminal of the supercapacitor module is connected to the negative output post. The voltage detection terminal of the BMS control unit is connected to the energy storage unit, and the control terminal of the BMS control unit is connected to the electronic switch unit.

2. The novel truck lithium battery with integrated start-stop system according to claim 1, characterized in that, The energy storage unit consists of seven lithium battery cells connected in series.

3. The novel truck lithium battery with integrated start-stop system according to claim 2, characterized in that, It also includes a cell voltage detection unit, and the voltage detection terminal of the BMS control unit is connected to the energy storage unit through the cell voltage detection unit.

4. The novel truck lithium battery with integrated start-stop system according to claim 1, characterized in that, The electronic switch unit includes a charging electronic switch and a discharging electronic switch. The input and output terminals of the charging electronic switch are respectively connected to the negative terminal and the negative output post of the energy storage unit. The control terminal of the charging electronic switch is connected to the control terminal of the BMS control unit. The input and output terminals of the discharging electronic switch are respectively connected to the negative terminal and the negative output post of the energy storage unit. The control terminal of the discharging electronic switch is connected to the control terminal of the BMS control unit.

5. The novel truck lithium battery with integrated start-stop system according to claim 4, characterized in that, Both the charging electronic switch and the discharging electronic switch are composed of MOS transistors.

6. The novel truck lithium battery with integrated start-stop system according to claim 1, characterized in that, The supercapacitor module includes a supercapacitor bank composed of multiple supercapacitors connected in series and a charging and discharging unit. The positive terminal of the supercapacitor bank is connected to the positive output post, and the negative terminal of the supercapacitor bank is connected to the negative output post through the charging and discharging unit.

7. The novel truck lithium battery with integrated start-stop system according to claim 6, characterized in that, The charging and discharging unit includes a MOSFET Q13, a transistor Q14, Zener diodes D1, D2, and D3, a capacitor C13, resistors R57, R58, R59, and R60, and a resistor network composed of multiple resistors. The first terminal of the MOSFET Q13 is connected to the negative terminal of the supercapacitor bank, one end of the resistor network, the negative terminal of Zener diodes D1 and D2, and the positive terminal of Zener diode D3. The second terminal of the MOSFET Q13 is connected to one end of the resistor network, the positive terminal of Zener diode D1, and the positive terminal of Zener diode D2. The transistor Q14 is connected to the positive output terminal, one end of the resistor R57, one end of the capacitor C13, and ground. The third terminal of the MOSFET Q13 is connected to the other end of the resistor R57, the other end of the capacitor C13, and one end of the resistor R60. The first terminal of the transistor Q14 is connected to one end of the resistor R58 and one end of the resistor R59. The other end of the resistor R58 is connected to the negative terminal of the Zener diode D3. The second terminal of the transistor Q14 is connected to the other end of the resistor R59 and the positive output terminal. The third terminal of the transistor Q14 is connected to the other end of the resistor R60.

8. The novel truck lithium battery with integrated start-stop system according to claim 6, characterized in that, The supercapacitor module also includes multiple equalization units, the number of which is the same as the number of supercapacitors, and each equalization unit is connected in parallel with a corresponding supercapacitor.

9. The novel truck lithium battery with integrated start-stop system according to claim 8, characterized in that, The equalization unit includes a voltage regulator U1, a transistor Q1, resistors R1, R7, R17, R25, R62, and R71. The first terminal of the voltage regulator U1 is connected to one end of resistor R25 and one end of resistor R62. The second terminal of the voltage regulator U1 is connected to the first terminal of transistor Q1 and one end of resistor R71 after passing through resistor R17. The third terminal of the voltage regulator U1 is connected to one end of resistor R1, one end of resistor R7, the other end of resistor R62, and the corresponding negative terminal of the supercapacitor. The second terminal of transistor Q1 is connected to the other end of resistor R71, the other end of resistor R25 (i.e., the positive terminal of the supercapacitor), and the third terminal of transistor Q1 is connected to the other end of resistor R1 and the other end of resistor R7.

10. The novel truck lithium battery with integrated start-stop system according to claim 1, characterized in that, It also includes a temperature detection unit for detecting the temperature of the energy storage unit, the temperature detection unit being connected to the BMS control unit.

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