A battery management system batch upgrade and parameter modification system

Abstract

The present invention relates to a battery management system batch upgrade and parameter modification system, comprising the steps of: storing the upgrade program or parameters corresponding to the battery management system hardware module in a Flash storage module, and reading the upgrade program or parameters in the Flash storage module through a single-chip microcomputer MCU module when in use; the single-chip microcomputer MCU module sequentially communicates with each upgrade port MCU through a CAN communication interface in a plurality of upgrade port modules. The beneficial effects of the present invention are: a single-chip microcomputer MCU module is provided, and the single-chip microcomputer MCU module batch upgrades and modifies the parameters of battery management modules connected to a plurality of upgrade port modules according to the upgrade program or parameters stored in the Flash storage module, or according to the upgrade program or parameters issued by a host computer; the batch processing means of the present invention is faster than the existing on-site single manual upgrade or modification, significantly reduces the workload, and the number of modules that need to be operated is also less than before.

Description

Technical Field

[0001] The present invention belongs to the technical field of battery management, and in particular relates to a battery management system batch upgrade and parameter modification system. Background Art

[0002] With the rapid development of new energy fields such as electric vehicles and energy storage power stations, a large number of electrochemical batteries such as lithium-ion power batteries or lead-acid batteries are being used. Electric vehicles, energy storage power stations and other environments all require a large number of batteries to form high voltage. In order to adapt to the safe operation of the battery pack, it is essential to equip the battery pack with a corresponding battery management system. Due to electric vehicles, energy storage power stations, and the use environment, as the number of batteries used increases, a large number of battery management modules will inevitably be used. In the use of large-capacity energy storage power stations, a large number of batteries are first connected in parallel and then in series, or only in series to form a battery cluster, and then multiple battery clusters are connected in parallel to form a battery stack, and multiple battery stacks form an energy storage battery system.

[0003] The battery management system will also form a corresponding system architecture, such as one module monitoring and managing multiple batteries, multiple modules and a battery cluster management module monitoring and managing a battery cluster, setting up a battery stack management unit for multiple battery cluster management modules, and so on.

[0004] Since battery management modules are mass-produced, it is impossible to make module function changes and parameter settings in advance in conjunction with the energy storage power station architecture that has not yet been put into use. The current general processing method is to manually upgrade or modify on-site, which brings a huge workload and requires operation of a large number of modules. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a battery management system batch upgrade and parameter modification system.

[0006] The battery management system batch upgrade and parameter modification system comprises an upper battery management module interface structure, a bottom battery management module placement structure, a single-chip microcomputer MCU module, a Flash storage module, an external communication interface module, an internal communication module and a power interface module; the upper battery management module interface structure comprises a plurality of upgrade port modules; a groove is provided at the bottom of the bottom battery management module placement structure, and a plurality of battery management modules are placed and fixed on the bottom battery management module placement structure;

[0007] The upgrade port module includes an upgrade port MCU, a switch K, a CAN communication interface, a power supply interface and two LED display lights; the upgrade port MCU in the upgrade port module is connected to the CAN communication interface and the power supply interface, one end of the switch K is connected to the CAN communication interface, and the other end is connected to the battery management module;

[0008] The single-chip microcomputer MCU module is respectively connected to the Flash storage module, the external communication interface module, the internal communication module, and the power interface module; the internal communication module is connected to multiple upgrade port modules; the single-chip microcomputer MCU module is connected to the CAN communication parts inside multiple battery management modules through the CAN communication interfaces in the multiple upgrade port modules; the power interface module is connected to the CAN communication interfaces in the multiple upgrade port modules.

[0009] Preferably, both the external communication interface module and the internal communication module adopt CAN communication mode.

[0010] Preferably, among the two LED display lights, LEDA is a red light and LEDB is a green light.

[0011] Preferably, the power interface module is a 9-36V external power supply interface.

[0012] Preferably, the power interface module is connected to direct current or alternating current.

[0013] Preferably, the upgrade port MCU is used to control the closing and opening of the switch K in the upgrade port.

[0014] Preferably, the number of upgrade port modules is the same as the number of battery management modules.

[0015] The working method of the battery management system batch upgrade and parameter modification system includes the following steps:

[0016] Step 1, storing the upgrade program or parameters corresponding to the battery management system hardware module in the Flash storage module, and reading the upgrade program or parameters in the Flash storage module through the single-chip microcomputer MCU module when in use; or connecting the single-chip microcomputer MCU module to the host computer through the external communication interface module, and the single-chip microcomputer MCU module receives the upgrade program or parameters corresponding to the battery management system hardware module issued by the host computer;

[0017] Step 2, the single-chip microcomputer MCU module communicates with each upgrade port MCU through the CAN communication interface in the multiple upgrade port modules in turn, closes the switch K in each upgrade port module in turn, and writes the address parameters to the battery management module corresponding to each upgrade port module in turn;

[0018] Step 3: After all the battery management modules have completed writing the address parameters, the MCU module batch upgrades and modifies the parameters of the battery management modules in turn through the address parameters in the battery management modules; the status of the two LED display lights is used to preliminarily determine whether the batch upgrade and parameter modification are successful;

[0019] Step 4: Compare the upgrade program or parameters in the MCU module with the program or parameters in the Flash storage module, or compare the upgrade program or parameters in the MCU module with the upgrade program or parameters sent by the host computer; if the comparison results are consistent, it is further determined that the batch upgrade and parameter modification of the battery management system are successful.

[0020] As a preferred method, in step 3, the method of preliminarily judging whether the batch upgrade and parameter modification are successful by the status of the two LED display lights is as follows:

[0021] If the red LEDA is off and the green LEDB is off, it means that the upgrade port module is not powered;

[0022] If LEDA is always red and LEDB is off green, it means that the upgrade port module is only in the power supply state;

[0023] If LEDA is always red and LEDB is flashing green, it means the upgrade port module is in power supply, parameter writing or upgrade process.

[0024] If LEDA flashes red and LEDB flashes green, it means the upgrade port module is in power supply, parameter writing or upgrade failure status;

[0025] If LEDA is always red and LEDB is always green, it means the upgrade port module is in power supply state, parameters are written successfully or the upgrade is successful.

[0026] The beneficial effects of the present invention are:

[0027] The present invention is provided with an upper battery management module interface structure and a bottom battery management module placement structure. The upgrade port module in the upper battery management module interface structure is connected one-to-one with the battery management module placed on the bottom battery management module placement structure. Only one total single-chip microcomputer MCU module is provided; and only one internal communication module is required for communicating with all battery management modules; each upgrade port module is also provided with two LED display lights for determining whether the batch upgrade and parameter modification of the battery management system are successful;

[0028] The present invention is provided with a single-chip microcomputer MCU module, which performs batch upgrades and parameter modifications on battery management modules connected to multiple upgrade port modules according to the upgrade program or parameters stored in the Flash storage module or according to the upgrade program or parameters issued by the host computer; the batch processing method of the present invention is faster than the existing on-site single manual upgrade or modification, significantly reduces the workload, and the number of modules that need to be operated is also less than before. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1This is a framework diagram of the battery management system batch upgrade and parameter modification system of the present invention;

[0030] Figure 2 This is a framework diagram of the upgrade port in the battery management system batch upgrade and parameter modification system of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of the battery management system batch upgrade and parameter modification system opened when in use;

[0032] Figure 4 It is a schematic diagram of a closed structure when the battery management system batch upgrade and parameter modification system of the present invention is used;

[0033] Figure 5 This is a schematic diagram of the bottom battery management module placement structure of the battery management system batch upgrade and parameter modification system of the present invention.

[0034] Explanation of the accompanying drawings: upper battery management module interface structure 1, bottom battery management module placement structure 2, single-chip microcomputer MCU module 3, Flash storage module 4, external communication interface module 5, internal communication module 6, power interface module 7, upgrade port module 8, battery management module 9, upgrade port MCU10, switch K11, CAN communication interface 12, power supply interface 13, LED display light 14. DETAILED DESCRIPTION

[0035] The present invention is further described below in conjunction with embodiments. The description of the following embodiments is only used to help understand the present invention. It should be noted that for ordinary persons in the art, without departing from the principle of the present invention, the present invention can also be modified in some ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

[0036] Embodiment 1

[0037] Embodiment 1 of the present application provides a Figure 1 The battery management system batch upgrade and parameter modification system shown in the figure is composed of a single-chip microcomputer MCU module 3, a Flash storage module 4, an external communication interface module 5, an internal communication module 6, a power interface module 7, and an upgrade port module 8.

[0038] The single-chip microcomputer MCU module 3 is respectively connected to the Flash storage module 4, the external communication interface module 5, the internal communication module 6, and the power interface module 7. The internal communication module 6 is connected to the multiple upgrade port module 8, and the single-chip microcomputer MCU module 3 is connected to the internal CAN communication of multiple battery management modules through the CAN communication interface in the multiple upgrade port modules. The power interface module is connected to the multiple upgrade port modules 8, and the power interface module 7 is connected to the multiple battery management modules 9 for power supply through the power supply interface 13 in the multiple upgrade port modules 8.

[0039] like Figure 2 As shown, the upgrade port module 8 is composed of an upgrade port MCU 10, a switch K11, a CAN communication interface 12, a power supply interface 13 and an LED display light 14. The upgrade port MCU 10 is connected to the CAN communication interface 12 and the power supply interface 13; one end of the switch K11 in the upgrade port module 8 is connected to the internal CAN communication interface 12, and the other end is connected to the battery management module 9. The upgrade port MCU 10 in the upgrade port module 8 controls the switch K11 in the upgrade port to close and open.

[0040] like Figures 3 to 5 As shown, the battery management system batch upgrade and parameter modification system includes a bottom battery management module placement structure 2 and an upper battery management module interface structure 1. The bottom battery management module placement structure 2 places and fixes multiple battery management modules 9. The upper battery management module interface structure 1 is mainly composed of multiple upgrade port modules 8.

[0041] Wherein, the external communication interface module 5 and the internal communication module 6 both adopt CAN communication.

[0042] The two LED display lights 14 are respectively a red light LEDA and a green light LEDB.

[0043] Among them, the power interface module is a 9~36V external power supply interface.

[0044] Embodiment 2

[0045] Based on the first embodiment, the second embodiment of the present application provides a working method of the battery management system batch upgrade and parameter modification system in the first embodiment:

[0046] The upgrade program or parameters are stored in the Flash storage module, or the host computer is connected to the MCU module through the external communication interface module. When in use, the program or parameters in the Flash storage module are read through the MCU module, or the program or parameters sent by the host computer are received to perform batch operations on the battery management module.

[0047] 1) The single-chip microcomputer MCU module 3 sequentially connects the internal communication module 6 with the CAN communication interface 12 in the upgrade port module 8, sequentially closes the internal communication switch K11 of the upgrade port module 8, and sequentially writes the address parameters to each battery management module 9.

[0048] 2) After all the address parameters of the battery management modules 9 are written, that is, the internal communication switches K11 of all the upgrade port modules 8 are closed, the program or parameters in the Flash storage module 4 are read through the MCU module 3, or the program or parameters sent by the host computer are received, and multiple battery management modules 9 are batch operated in turn through the module address parameters.

[0049] 3) After the parameters are written or upgraded, the program or parameters in the reading module of the MCU module 3 are compared with the program or parameters in the Flash storage module (or sent by the host computer). If the two are the same, it is successful.

[0050] The display rules of the two LED display lights 14 are as follows:

[0051] If the red LEDA is off and the green LEDB is off, it means that the upgrade port module 8 is not in the power supply state;

[0052] If LEDA is always red and LEDB is off green, it means that the upgrade port module 8 is only in the power supply state;

[0053] If LEDA is always red and LEDB is flashing green, it means that the upgrade port module 8 is in power supply state, parameter writing state or upgrade process state;

[0054] If LEDA flashes red and LEDB flashes green, it means that the upgrade port module 8 is in power supply state, parameter writing state or upgrade failure state;

[0055] If the red light of LEDA is always on and the green light of LEDB is always on, it means that the upgrade port module 8 is in the power supply state, the parameters are successfully written or the upgrade is successful.

Claims

1. A battery management system batch upgrade and parameter modification system, characterized by: It comprises an upper battery management module interface structure (1), a bottom battery management module placement structure (2), a single-chip microcomputer MCU module (3), a Flash storage module (4), an external communication interface module (5), an internal communication module (6) and a power interface module (7); the upper battery management module interface structure (1) comprises a plurality of upgrade port modules (8); a groove is provided at the bottom of the bottom battery management module placement structure (2), and a plurality of battery management modules (9) are placed and fixed on the bottom battery management module placement structure (2); The upgrade port module (8) comprises an upgrade port MCU (10), a switch K (11), a CAN communication interface (12), a power supply interface (13) and two LED display lights (14); the upgrade port MCU (10) in the upgrade port module (8) is connected to the CAN communication interface (12) and the power supply interface (13); one end of the switch K (11) is connected to the CAN communication interface (12), and the other end is connected to the battery management module (9); The single-chip microcomputer MCU module (3) is respectively connected to a Flash storage module (4), an external communication interface module (5), an internal communication module (6), and a power interface module (7); the internal communication module (6) is connected to a plurality of upgrade port modules (8); the single-chip microcomputer MCU module (3) is connected to CAN communication parts inside a plurality of battery management modules (9) via CAN communication interfaces (12) in the plurality of upgrade port modules (8); the power interface module (7) is connected to the CAN communication interfaces (12) in the plurality of upgrade port modules (8); the working method of the battery management system batch upgrade and parameter modification system comprises the following steps: Step 1: storing an upgrade program or parameter corresponding to the battery management system hardware module in a Flash storage module (4); and reading the upgrade program or parameter in the Flash storage module (4) through a single-chip microcomputer MCU module (3) during use; or connecting the single-chip microcomputer MCU module (3) to a host computer through an external communication interface module (5), and the single-chip microcomputer MCU module (3) receiving the upgrade program or parameter corresponding to the battery management system hardware module sent by the host computer; Step 2, the single-chip microcomputer MCU module (3) communicates with each upgrade port MCU (10) in turn through the CAN communication interface (12) in the multiple upgrade port modules (8), closes the switch K (11) in each upgrade port module (8) in turn, and writes the address parameters to the battery management module (9) corresponding to each upgrade port module (8) in turn; Step 3: After all the battery management modules (9) have completed writing the address parameters, the single-chip microcomputer MCU module (3) performs batch upgrades and parameter modifications on the battery management modules (9) in turn according to the address parameters in the battery management modules (9); and preliminarily determines whether the batch upgrade and parameter modification are successful by the status of the two LED display lights (14); Step 4: compare the upgrade program or parameters in the single-chip microcomputer MCU module (3) with the program or parameters in the Flash storage module (4), or compare the upgrade program or parameters in the single-chip microcomputer MCU module (3) with the upgrade program or parameters sent by the host computer; if the comparison results are consistent, it is further determined that the batch upgrade and parameter modification of the battery management system are successful.

2. According to claim 1, the battery management system batch upgrade and parameter modification system is characterized by: The external communication interface module (5) and the internal communication module (6) both adopt the CAN communication mode.

3. According to claim 1, the battery management system batch upgrade and parameter modification system is characterized by: Of the two LED display lights (14), LEDA is a red light and LEDB is a green light.

4. According to claim 1, the battery management system batch upgrade and parameter modification system is characterized by: The power interface module (7) is a 9-36V external power supply interface.

5. According to claim 1, the battery management system batch upgrade and parameter modification system is characterized by: The power interface module (7) is connected to direct current or alternating current.

6. The battery management system batch upgrade and parameter modification system according to claim 1, characterized in that: The upgrade port MCU is used to control the closing and opening of the switch K in the upgrade port.

7. The battery management system batch upgrade and parameter modification system according to claim 1 is characterized by: The number of upgrade port modules (8) is the same as the number of battery management modules (9).

8. The battery management system batch upgrade and parameter modification system according to claim 1 is characterized in that: In step 3, the method of preliminarily judging whether the batch upgrade and parameter modification are successful by the status of the two LED display lights (14) is as follows: If the red light of LEDA is off and the green light of LEDB is off, it means that the upgrade port module (8) is not in the power supply state; If LEDA is always red and LEDB is off green, it means that the upgrade port module (8) is only in the power supply state; If LEDA is always red and LEDB is flashing green, it means that the upgrade port module (8) is in power supply state, parameter writing state or upgrade process state; If LEDA flashes red and LEDB flashes green, it means that the upgrade port module (8) is in power supply state, parameter writing state or upgrade failure state; If LEDA is always on in red and LEDB is always on in green, it means that the upgrade port module (8) is in a power supply state, a parameter writing state or an upgrade success state.

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