Device, method and electronic equipment for simulating battery load

Abstract

The present invention relates to the technical field of battery load simulation, and discloses a device, method and electronic device for simulating battery load. The device includes a load switching module and a stabilization module, wherein the load switching module is used to perform corresponding load simulation operations according to a detected first load simulation requirement, and the first load simulation requirement includes a required load property and its corresponding required load value; the stabilization module is used to perform corresponding load introduction and stabilization operations according to a detected second load simulation requirement and a set load stabilization requirement, so as to realize simulation setting of the battery load under different vehicle environments, improve the simulation flexibility, accuracy and reliability, simulation efficiency and convenience of the battery load, thereby improving the versatility and pertinence of the battery load simulation, improving the safety and operation stability during the battery load simulation process, thereby improving the operation reliability and adjustment timeliness of the battery, and further improving the user's battery usage experience.

Description

Technical Field

[0001] The present invention relates to the technical field of battery load simulation, and in particular to a device, method and electronic equipment for simulating battery load. Background Art

[0002] With the rapid development of new energy technologies, batteries, as core components of energy storage, play a vital role in many fields. In the battery testing and verification phase, battery load simulation is one of the key technologies to evaluate the performance of batteries under various working conditions, which helps staff understand key indicators such as battery charge and discharge characteristics, efficiency, thermal management, and cycle life under different load conditions.

[0003] However, the current battery load simulation is mainly achieved through devices such as resistor boxes and programmable electronic loads, which can only simply simulate constant current or constant voltage loads, which has great limitations and low simulation accuracy and reliability of battery loads. It is therefore particularly important to provide a technical solution that can improve the simulation accuracy and reliability of battery loads. Summary of the invention

[0004] The present invention provides a device, method and electronic device for simulating battery load, which realizes the simulation setting of battery load under different vehicle environments, improves the simulation flexibility, accuracy and reliability of battery load, and improves the simulation efficiency and convenience of battery load, thereby improving the operating stability and reliability of the battery and the timeliness of adjustment, thereby improving the user's battery usage experience.

[0005] In order to solve the above technical problems, the first aspect of the present invention discloses a device for simulating battery load, the device comprising a load switching module and a stabilization module, wherein:

[0006] The first end of the load switching module is electrically connected to the first end of the stabilization module and is used to electrically connect to the positive terminal of the power supply device, the second end of the load switching module is electrically connected to the second end of the stabilization module, the third end and the fourth end of the load switching module are electrically connected to the third end of the stabilization module, and the fourth end of the stabilization module is used to electrically connect to the negative terminal of the power supply device;

[0007] The load switching module is used to perform a corresponding load simulation operation according to a detected first load simulation demand, wherein the first load simulation demand includes a required load property and a corresponding required load value, and the first load simulation demand is reflected by a first switch contact switching operation of a user;

[0008] The stabilization maintenance module is used to perform corresponding load introduction and stabilization maintenance operations according to the detected second load simulation demand and the set load stabilization maintenance demand. The second load simulation demand is reflected by the user's second switch contact switching operation.

[0009] As an optional implementation, in the first aspect of the present invention, the load switching module includes a resistive load control module and a capacitive load control module, wherein:

[0010] The first end of the resistive load control module is electrically connected to the first end of the stabilization maintenance module and the positive end for electrically connecting to the power supply device, the second end of the resistive load control module is electrically connected to the first end of the capacitive and inductive load control module, the second end of the capacitive and inductive load control module is electrically connected to the second end of the stabilization maintenance module, and the third and fourth ends of the capacitive and inductive load control module are electrically connected to the third end of the stabilization maintenance module.

[0011] As an optional implementation, in the first aspect of the present invention, the capacitive and inductive load control module includes a capacitive load control module, a first inductive load control module and a second inductive load control module, wherein:

[0012] The first end of the first inductive load control module is electrically connected to the second end of the resistive load control module, the second end of the first inductive load control module is electrically connected to the first end of the capacitive load control module, the third end of the first inductive load control module is electrically connected to the first end of the second inductive load control module, the second end of the capacitive load control module is electrically connected to the second end of the stabilization maintenance module, and the third end of the capacitive load control module and the second end of the second inductive load control module are electrically connected to the third end of the stabilization maintenance module.

[0013] As an optional implementation, in the first aspect of the present invention, the resistive load control module includes a first load selection circuit and a first load determination circuit, wherein:

[0014] The first end of the first load selection circuit is electrically connected to the first end of the stabilization module and the positive terminal for electrically connecting to the power supply device, the second end of the first load selection circuit is electrically connected to the first end of the first load determination circuit, and the third end of the first load selection circuit is electrically connected to the first end of the capacitive and inductive load control module and the second end of the first load determination circuit;

[0015] The first load selection circuit is specifically used to determine whether the first load simulation requirement indicates that resistive load simulation is required or not;

[0016] The first load determination circuit is specifically configured to output a corresponding resistive load when the first load simulation requirement is used to indicate that the resistive load simulation needs to be performed; and output a corresponding empty load when the first load simulation requirement is used to indicate that the resistive load simulation does not need to be performed;

[0017] Wherein, when the first load simulation requirement is used to indicate that the resistive load simulation needs to be performed, the first end of the first load selection circuit is connected to the second end of the first load selection circuit;

[0018] When the first load simulation requirement is used to indicate that the resistive load simulation is not required, the first end of the first load selection circuit is connected to the third end of the first load selection circuit.

[0019] As an optional implementation, in the first aspect of the present invention, the capacitive load control module includes a second load determination circuit, a first discharge protection circuit and a second load selection circuit, wherein:

[0020] A first end of the second load determination circuit and a first end of the first discharge protection circuit are electrically connected to a second end of the first inductive load control module, a second end of the second load determination circuit and a second end of the first discharge protection circuit are electrically connected to a first end of the second load selection circuit, a second end of the second load selection circuit is electrically connected to a second end of the stabilization maintenance module, and a third end of the second load selection circuit is electrically connected to a second end of the second inductive load control module and a third end of the stabilization maintenance module;

[0021] The second load selection circuit is specifically used to determine whether the first load simulation requirement indicates that capacitive load simulation needs to be performed or that capacitive load simulation does not need to be performed;

[0022] The second load determination circuit is specifically configured to output a corresponding capacitive load when the first load simulation requirement is used to indicate that the capacitive load simulation needs to be performed; and output a corresponding empty load when the first load simulation requirement is used to indicate that the capacitive load simulation does not need to be performed;

[0023] Wherein, when the first load simulation requirement is used to indicate that the capacitive load simulation needs to be performed, the first end, the second end and the third end of the second load selection circuit are turned on;

[0024] When the first load simulation requirement is used to indicate that the capacitive load simulation is not required, the first end, the second end and the third end of the second load selection circuit are not conducting;

[0025] Furthermore, the first inductive load control module includes a third load selection circuit, a third load determination circuit and a second discharge protection circuit, wherein:

[0026] The first end of the third load selection circuit is electrically connected to the second end of the resistive load control module, the second end of the third load selection circuit is electrically connected to the first end of the third load determination circuit and the first end of the second discharge protection circuit, and the third end of the third load selection circuit is electrically connected to the second end of the third load determination circuit, the second end of the second discharge protection circuit, the first end of the capacitive load control module, and the first end of the second inductive load control module;

[0027] The third load selection circuit is specifically used to determine whether the first load simulation requirement indicates that a first inductive load simulation is required or not;

[0028] The third load determination circuit is specifically configured to output a corresponding first inductive load when the first load simulation requirement is used to indicate that the first inductive load simulation needs to be performed; and output a corresponding empty load when the first load simulation requirement is used to indicate that the first inductive load simulation does not need to be performed;

[0029] Wherein, when the first load simulation requirement is used to indicate that the first inductive load simulation needs to be performed, the first end of the third load selection circuit is connected to the second end of the third load selection circuit;

[0030] When the first load simulation requirement is used to indicate that the first inductive load simulation is not required, the first end of the third load selection circuit is connected to the third end of the third load selection circuit;

[0031] Furthermore, the second inductive load control module includes a fourth load selection circuit, a fifth load selection circuit, a fourth load determination circuit and a third discharge protection circuit, wherein:

[0032] The first end of the fourth load selection circuit is electrically connected to the third end of the first inductive load control module, the second end of the fourth load selection circuit is electrically connected to the first end of the fifth load selection circuit, the second end of the fifth load selection circuit is electrically connected to the third end of the stabilization module, the third end of the capacitive load control module, the second end of the fourth load determination circuit and the second end of the third discharge protection circuit, and the third end of the fifth load selection circuit is electrically connected to the first end of the fourth load determination circuit and the first end of the third discharge protection circuit;

[0033] The fourth load selection circuit is specifically used to determine whether the first load simulation requirement indicates that the second inductive load simulation needs to be performed or does not need to be performed;

[0034] The fifth load selection circuit is specifically used to determine whether the first load simulation requirement indicates that the second inductive load simulation needs to be performed or that the second inductive load simulation does not need to be performed;

[0035] The fourth load determination circuit is specifically configured to output a corresponding second inductive load when the first load simulation requirement is used to indicate that the second inductive load simulation needs to be performed; and output a corresponding empty load when the second load simulation requirement is used to indicate that the second inductive load simulation does not need to be performed;

[0036] Wherein, when the first load simulation requirement is used to indicate that the second inductive load simulation needs to be performed, the first end of the fourth load selection circuit is connected to the second end of the fourth load selection circuit, and the first end of the fifth load selection circuit is connected to the third end of the fifth load selection circuit;

[0037] When the first load simulation requirement is used to indicate that the second inductive load simulation is not required, the first end of the fourth load selection circuit is not connected to the second end of the fourth load selection circuit, or the first end of the fourth load selection circuit is connected to the second end of the fourth load selection circuit and the first end of the fifth load selection circuit is connected to the second end of the fifth load selection circuit.

[0038] As an optional implementation, in the first aspect of the present invention, the stabilization module includes a gate voltage setting module and a voltage stabilization protection module, wherein:

[0039] The first end of the gate voltage setting module is electrically connected to the first end of the load switching module and is used to electrically connect to the positive terminal of the power supply device, the second end of the gate voltage setting module is electrically connected to the first end of the voltage stabilizing protection module, the third end of the gate voltage setting module is electrically connected to the second end of the load switching module, and the fourth end of the gate voltage setting module is electrically connected to the third and fourth ends of the load switching module, the second end of the voltage stabilizing protection module, and is used to electrically connect to the negative terminal of the power supply device.

[0040] As an optional implementation, in the first aspect of the present invention, the gate voltage setting module includes a first voltage divider circuit, a second voltage divider circuit, a third voltage divider circuit and a capacitive introduction control circuit, wherein:

[0041] The first end of the first voltage-dividing circuit is electrically connected to the first end of the load switching module and the positive terminal for electrically connecting to the power supply device, the second end of the first voltage-dividing circuit is electrically connected to the first end of the voltage-stabilizing protection module and the first end of the capacitive introduction control circuit, the second end of the capacitive introduction control circuit is electrically connected to the first end of the second voltage-dividing circuit, the second end of the second voltage-dividing circuit is electrically connected to the first end of the third voltage-dividing circuit and the second end of the load switching module, the second end of the third voltage-dividing circuit is electrically connected to the third and fourth ends of the load switching module, the second end of the voltage-stabilizing protection module and the negative terminal for electrically connecting to the power supply device;

[0042] Wherein, when the first load simulation requirement is used to indicate that capacitive load simulation is required, the first end of the capacitive introduction control circuit is connected to the second end of the capacitive introduction control circuit;

[0043] When the first load simulation requirement is used to indicate that capacitive load simulation is not required, the first end of the capacitive introduction control circuit is disconnected from the second end of the capacitive introduction control circuit;

[0044] Furthermore, the gate voltage setting module further includes a fourth discharge protection circuit, wherein:

[0045] A first end of the fourth discharge protection circuit is electrically connected to a second end of the capacitive introduction control circuit, and a second end of the fourth discharge protection circuit is electrically connected to a first end of the second voltage divider circuit.

[0046] As an optional implementation, in the first aspect of the present invention, the voltage stabilization protection module includes a circuit for preventing sudden changes and a circuit for preventing excessive sudden changes, wherein:

[0047] The first end of the circuit for preventing mutations is electrically connected to the first end of the circuit for preventing excessive mutations and the second end of the gate voltage setting module, and the second end of the circuit for preventing mutations is electrically connected to the second end of the circuit for preventing excessive mutations, the third and fourth ends of the load switching module, the fourth end of the gate voltage setting module and the negative terminal for electrically connecting to the power supply device.

[0048] A second aspect of the present invention discloses a method for simulating a battery load, the method being applied to a device for simulating a battery load, the device comprising a load switching module and a stabilization module, wherein:

[0049] The first end of the load switching module is electrically connected to the first end of the stabilization module and is used to electrically connect to the positive terminal of the power supply device, the second end of the load switching module is electrically connected to the second end of the stabilization module, the third end and the fourth end of the load switching module are electrically connected to the third end of the stabilization module, and the fourth end of the stabilization module is used to electrically connect to the negative terminal of the power supply device;

[0050] The method comprises:

[0051] The load switching module performs a corresponding load simulation operation according to the detected first load simulation demand, wherein the first load simulation demand includes a required load property and a corresponding required load value, and the first load simulation demand is reflected by a first switch contact switching operation of the user;

[0052] The stabilization maintenance module performs corresponding load introduction and stabilization maintenance operations according to the detected second load simulation requirement and the set load stabilization maintenance requirement, and the second load simulation requirement is reflected by the user's second switch contact switching operation.

[0053] A third aspect of the present invention discloses an electronic device, wherein the circuit board comprises a device for simulating a battery load as described in any one of the first aspect of the present invention.

[0054] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0055] It can realize the simulation setting of battery load under different vehicle environments, improve the simulation flexibility, accuracy and reliability of battery load, as well as improve the simulation efficiency and convenience of battery load, thereby improving the versatility and pertinence of battery load simulation, and improve the safety and operational stability during battery load simulation, thereby improving the operational reliability and adjustment timeliness of the battery, and further improving the user's battery usage experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0057] Figure 1 is a schematic structural diagram of a device for simulating battery load disclosed in an embodiment of the present invention;

[0058] Figure 2 is a schematic structural diagram of another device for simulating battery load disclosed in an embodiment of the present invention;

[0059] Figure 3is a flow chart of a method for simulating battery load disclosed in an embodiment of the present invention;

[0060] Figure 4 It is a structural schematic diagram of an electronic device disclosed in an embodiment of the present invention. DETAILED DESCRIPTION

[0061] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0062] It should be noted that, unless otherwise clearly specified and limited, the term "electrical connection" in the specification and claims of the present invention and the above-mentioned drawings should be understood in a broad sense. For example, it can be a fixed electrical connection, a detachable electrical connection, or an integral electrical connection; it can be a mechanical electrical connection, an electrical electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. In addition, the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. The terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] The present invention discloses a device, method and electronic device for simulating battery load, which can realize the simulation setting of battery load under different vehicle environments, improve the simulation flexibility, accuracy and reliability of battery load, and improve the simulation efficiency and convenience of battery load, thereby improving the versatility and pertinence of battery load simulation, and improving the safety and operation stability during battery load simulation, thereby improving the operation reliability and adjustment timeliness of the battery, and further improving the user's battery use experience. The following are detailed descriptions.

[0064] Embodiment 1

[0065] See also Figure 1 , Figure 1 Schematic diagram of the structure of the device for simulating battery load disclosed in the embodiment of the present invention. Figure 1 As shown, the device for simulating battery load includes a load switching module 10 and a stabilization module 20, wherein:

[0066] The first end of the load switching module 10 is electrically connected to the first end of the stabilization module 20 and is used to electrically connect to the positive end of the power supply device 30, the second end of the load switching module 10 is electrically connected to the second end of the stabilization module 20, the third end and the fourth end of the load switching module 10 are electrically connected to the third end of the stabilization module 20, and the fourth end of the stabilization module 20 is used to electrically connect to the negative end of the power supply device 30;

[0067] The load switching module 10 is used to perform a corresponding load simulation operation according to the detected first load simulation demand, wherein the first load simulation demand includes a required load property and a corresponding required load value, and the first load simulation demand is reflected by a first switch contact switching operation of the user;

[0068] The stabilization module 20 is used to perform corresponding load introduction and stabilization operations according to the detected second load simulation demand and the set load stabilization demand. The second load simulation demand is reflected by the user's second switch contact switching operation.

[0069] Optional, such as Figure 2 As shown, the first switch contact switching operation can be specifically the contact switching operation corresponding to SW2, SW3, SW4, and SW5, and the second switch contact switching operation can be specifically the contact switching operation corresponding to SW1; further, for the first load simulation requirement, the first switch contact switching operation, the second load simulation requirement, and the second switch contact switching operation, an example is given: by switching different contacts of the single-pole double-throw switch to simulate different load combinations of the whole vehicle, further, for example, the first load selection switch SW2 selects contact 1 (that is, the first end is connected to the second end), the second load selection switch SW3 selects contact 4 (that is, the first end is connected to the third end), and the fourth load selection switch SW4 selects contact 5 (that is, the first end is connected to the third end), and the fourth load selection switch SW5 selects contact 6 (that is, the first end is connected to the third end), and the fourth load selection switch SW6 selects contact 7 (that is, the first end is connected to the third end), and the fourth load selection switch SW7 selects contact 8 (that is, the first end is connected to the third end), and the fourth load selection switch SW8 selects contact 9 (that is, the first end is connected to the third end), and the fourth load selection switch SW9 selects contact 10 (that is, the first end is connected to the third end), and the fourth load selection switch SW1 selects contact 11 (that is, the first end is connected to the third end), and the fourth load selection switch SW2 selects contact 12 (that is, the first end is connected to the third end), and the fourth load selection switch SW1 selects contact 13 (that is, the first end is connected to the third end), and the fourth load selection switch SW1 selects contact 14 (that is, the first end is connected to the third end), and the fourth load selection switch SW2 selects contact 15 (that is, the first end is connected to the third end), and the fourth load selection switch SW3 selects contact 16 (that is, the first end is The load selection switch SW4 selects contact 5 (i.e., the corresponding first end and the second end are connected), and the third load selection switch SW5 is disconnected, and the resistive load value is adjusted, which can simulate the whole vehicle 12V battery pack being connected to different pure resistive loads; for example, the first load selection switch SW2 selects contact 2 (i.e., the corresponding first end and the third end are connected), the second load selection switch SW3 selects contact 4 (i.e., the corresponding first end and the third end are connected), and the third load selection switch SW5 is disconnected, then the whole vehicle 12V battery pack can be simulated to be connected to a capacitive load, and the specific load value can be further simulated by corresponding resistor components, inductor components, capacitor components, etc., and other situations can be obtained similarly, and the embodiments of the present invention are not limited thereto.

[0070] Optionally, the application scenario of the present solution and circuit may be: when the 12V battery pack of a whole vehicle is subjected to EE testing, the load of the battery pack needs to be simulated and set in combination with the whole vehicle environment, which is not limited in the embodiments of the present invention.

[0071] Optionally, the required load properties may include but are not limited to pure resistive load, pure inductive load, pure capacitive load, a combination of at least two of resistive load, inductive load and capacitive load, other types of loads, etc.; that is, the whole vehicle load simulation can be performed in pure resistance, pure inductive, or pure capacitive modes according to switch selection and adjustable load, or the whole vehicle load simulation can be performed in capacitive, resistive, or inductive series-parallel modes according to switch selection and adjustable load, which is not limited in the embodiments of the present invention.

[0072] Optionally, a load introduction operation is illustrated by way of example: combining the switch contacts to select the introduction of a capacitor into the load circuit to achieve capacitive load simulation and control, which is not limited in the embodiments of the present invention.

[0073] Optional, load stabilization requirements, for example: such as the stabilization requirements of protecting corresponding electronic components from damage, such as the stabilization requirements of controlling related voltages within a certain range, such as the stabilization requirements of ensuring that related voltages do not change suddenly, such as the circuit stabilization requirements of preventing current backflow, etc., the embodiments of the present invention are not limited.

[0074] Optionally, the power supply device 30 can be a 12V battery pack or other power supply equipment; further, the positive terminal of the power supply device 30 can correspond to KL30, that is, the positive electrode of the 12V battery pack; the negative terminal of the power supply can correspond to KL31, that is, the negative electrode of the 12V battery pack, which is not limited in the embodiment of the present invention.

[0075] It can be seen that the embodiment of the present invention can perform corresponding load simulation operations based on the simulation settings under different vehicle environments through the load switching module according to the detected first load simulation requirement; and perform corresponding load introduction and stabilization operations through the stabilization module according to the detected second load simulation requirement and the set load stabilization requirement, which can realize the simulation settings of the battery load under different vehicle environments, improve the simulation flexibility, accuracy and reliability of the battery load, and improve the simulation efficiency and convenience of the battery load, thereby improving the versatility and pertinence of the battery load simulation, and improving the safety and operational stability during the battery load simulation process, thereby improving the operational reliability and adjustment timeliness of the battery, and further improving the user's battery usage experience.

[0076] In an optional embodiment, if Figure 2 As shown, Figure 2 This is a schematic diagram of the structure of another device for simulating a battery load disclosed in an embodiment of the present invention, wherein the load switching module 10 may include a resistive load control module 101 and a capacitive load control module, wherein:

[0077] The first end of the resistive load control module 101 is electrically connected to the first end of the stabilization maintenance module 20 and the positive end for electrically connecting to the power supply device 30, the second end of the resistive load control module 101 is electrically connected to the first end of the capacitive and inductive load control module, the second end of the capacitive and inductive load control module is electrically connected to the second end of the stabilization maintenance module 20, and the third and fourth ends of the capacitive and inductive load control module are electrically connected to the third end of the stabilization maintenance module 20.

[0078] Optionally, the resistive load control module 101 may be a module for outputting a resistive load, which is not limited in the embodiment of the present invention.

[0079] Optionally, the capacitive and inductive load control module may be a module for outputting a capacitive load and / or an inductive load, which is not limited in the embodiment of the present invention.

[0080] It can be seen that this optional embodiment can realize the resistive load control simulation function of the battery through the resistive load control module, and realize the capacitive and inductive load control simulation function of the battery through the capacitive and inductive load control module, thereby improving the diversity and flexibility of battery load simulation types, and improving the pertinence and rationality of simulation operation modes for different battery load simulation types, thereby improving the accuracy and reliability of battery load simulation control, as well as improving the efficiency and convenience of battery load simulation control, and reducing the limitations of battery load simulation.

[0081] In another optional embodiment, Figure 2 As shown, the capacitive and inductive load control module may include a capacitive load control module 102, a first inductive load control module 103 and a second inductive load control module 104, wherein:

[0082] The first end of the first inductive load control module 103 is electrically connected to the second end of the resistive load control module 101, the second end of the first inductive load control module 103 is electrically connected to the first end of the capacitive load control module 102, the third end of the first inductive load control module 103 is electrically connected to the first end of the second inductive load control module 104, the second end of the capacitive load control module 102 is electrically connected to the second end of the stabilization maintenance module 20, and the third end of the capacitive load control module 102 and the second end of the second inductive load control module 104 are electrically connected to the third end of the stabilization maintenance module 20.

[0083] Optionally, the capacitive load regulating module 102 may be a module specifically used for outputting a capacitive load, which is not limited in the embodiment of the present invention.

[0084] Optionally, the first inductive load control module 103 and the second inductive load control module 104 may be cooperative output inductive loads or independent output inductive loads according to the simulated requirements of the actual vehicle environment for the battery pack load, which is not limited in the embodiment of the present invention.

[0085] It can be seen that this optional embodiment can realize the capacitive load control simulation function of the battery through the capacitive load control module, and can realize the corresponding inductive load control simulation function through the first inductive load control module and the second inductive load control module respectively, thereby improving the diversity and flexibility of battery load simulation types, and improving the pertinence and rationality of the capacitive load control simulation method, thereby improving the accuracy and reliability of the capacitive load control simulation. In addition, it also improves the pertinence, rationality and selectivity of the inductive load control simulation method, thereby improving the accuracy and reliability of the inductive load control simulation.

[0086] In yet another optional embodiment, Figure 2 As shown, Figure 2 This is a schematic diagram of the structure of another device for simulating a battery load disclosed in an embodiment of the present invention, wherein the resistive load control module 101 may include a first load selection circuit 1011 and a first load determination circuit 1012, wherein:

[0087] A first end of the first load selection circuit 1011 is electrically connected to a first end of the stabilization module 20 and a positive terminal for electrically connecting to the power supply device 30, a second end of the first load selection circuit 1011 is electrically connected to a first end of the first load determination circuit 1012, and a third end of the first load selection circuit 1011 is electrically connected to a first end of the capacitive and inductive load control module and a second end of the first load determination circuit 1012;

[0088] The first load selection circuit 1011 is specifically used to determine whether the first load simulation requirement indicates that resistive load simulation is required or not;

[0089] The first load determination circuit 1012 is specifically configured to output a corresponding resistive load when the first load simulation requirement is used to indicate that resistive load simulation is required; and output a corresponding empty load when the first load simulation requirement is used to indicate that resistive load simulation is not required;

[0090] Wherein, when the first load simulation requirement is used to indicate that a resistive load simulation is required, the first end of the first load selection circuit 1011 is connected to the second end of the first load selection circuit 1011;

[0091] When the first load simulation requirement is used to indicate that resistive load simulation is not required, the first end of the first load selection circuit 1011 is connected to the third end of the first load selection circuit 1011 .

[0092] Optional, Figure 2 FIG. 1 is a schematic diagram of the structure of another device for simulating battery load disclosed in an embodiment of the present invention, such as Figure 2 As shown, the first load selection circuit 1011 may include a first load selection switch SW2, wherein:

[0093] The first end of the first load selection switch SW2 is electrically connected to the first end of the stabilization module 20 and the positive end for electrically connecting to the power supply device 30, the second end of the first load selection switch SW2 is electrically connected to the first end of the first load determination circuit 1012, and the third end of the first load selection switch SW2 is electrically connected to the first end of the capacitive and inductive load control module and the second end of the first load determination circuit 1012.

[0094] Further optional, such as Figure 2 As shown, the second end of the first load selection switch SW2 may correspond to the contact 1 in the first load selection switch SW2, and the third end of the first load selection switch SW2 may correspond to the contact 2 of the first load selection switch SW2, which is not limited in the embodiment of the present invention.

[0095] Optionally, the first load selection switch SW2 may be a single-pole double-throw switch, which is not limited in the embodiment of the present invention.

[0096] Optional, such as Figure 2 As shown, the first load determination circuit 1012 may include a first load determination resistor R4, wherein:

[0097] A first end of the first load determination resistor R4 is electrically connected to a second end of the first load selection circuit 1011 , and a second end of the first load determination resistor R4 is electrically connected to a first end of the capacitive and inductive load control module and a third end of the first load selection circuit 1011 .

[0098] Optionally, the first load determining resistor R4 may be an adjustable resistor or a non-adjustable resistor, which is not limited in the embodiment of the present invention.

[0099] Further optionally, the specific resistance value of the first load determination resistor R4 can be flexibly adjusted according to actual needs; in addition, in actual applications, the number of first load determination resistors R4 can be adaptively adjusted according to the vehicle environment and the resistive load simulation requirements of the battery pack, which is not limited in the embodiments of the present invention.

[0100] It can be seen that this optional embodiment can determine through the first load selection circuit that the first load simulation requirement indicates that resistive load simulation is required or not, and output the corresponding resistive load or the corresponding empty load through the first load determination circuit, thereby improving the accuracy and reliability of determining the first load simulation requirement, and then improving the timeliness, accuracy and reliability of executing the resistive load simulation operation, thereby improving the simulation accuracy and reliability of the resistive load.

[0101] In yet another optional embodiment, Figure 2As shown, the capacitive load control module 102 includes a second load determination circuit 1021, a first discharge protection circuit 1022 and a second load selection circuit 1023, wherein:

[0102] A first end of the second load determination circuit 1021 and a first end of the first discharge protection circuit 1022 are electrically connected to a second end of the first inductive load control module 103, a second end of the second load determination circuit 1021 and a second end of the first discharge protection circuit 1022 are electrically connected to a first end of a second load selection circuit 1023, a second end of the second load selection circuit 1023 is electrically connected to a second end of the stabilization module 20, and a third end of the second load selection circuit 1023 is electrically connected to a second end of the second inductive load control module 104 and a third end of the stabilization module 20;

[0103] The second load selection circuit 1023 is specifically used to determine whether the first load simulation requirement indicates that capacitive load simulation needs to be performed or capacitive load simulation does not need to be performed;

[0104] The second load determination circuit 1021 is specifically configured to output a corresponding capacitive load when the first load simulation requirement is used to indicate that a capacitive load simulation is required; and output a corresponding empty load when the first load simulation requirement is used to indicate that a capacitive load simulation is not required;

[0105] When the first load simulation requirement is used to indicate that capacitive load simulation is required, the first terminal, the second terminal and the third terminal of the second load selection circuit 1023 are turned on;

[0106] When the first load simulation requirement is used to indicate that capacitive load simulation is not required, the first terminal, the second terminal and the third terminal of the second load selection circuit 1023 are not conducting.

[0107] Further optional, such as Figure 2 As shown, the second load selection circuit 1023 may include a first load selection MOS tube M1, wherein:

[0108] The first end of the first load selection MOS tube M1 is electrically connected to the second end of the second load determination circuit 1021 and the second end of the first discharge protection circuit 1022, the second end of the first load selection MOS tube M1 is electrically connected to the second end of the stabilization module 20, and the third end of the first load selection MOS tube M1 is electrically connected to the second end of the second inductive load control module 104 and the third end of the stabilization module 20.

[0109] Further optional, such as Figure 2 As shown, the second load determination circuit 1021 may include a first load determination capacitor C2, wherein:

[0110] A first end of the first load determination capacitor C2 is electrically connected to a second end of the first inductive load control module 103 and a first end of the first discharge protection circuit 1022 , and a second end of the first load determination capacitor C2 is electrically connected to a first end of the second load selection circuit 1023 and a second end of the first discharge protection circuit 1022 .

[0111] Optionally, the first load determining capacitor C2 may be an adjustable capacitor or a non-adjustable capacitor, which is not limited in the embodiment of the present invention.

[0112] Optionally, the second load determination circuit 1021 may include one or more first load determination capacitors C2, which is not limited in this embodiment of the present invention.

[0113] Further optional, such as Figure 2 As shown, the first discharge protection circuit 1022 may include a first anti-reverse diode D2 and a first anti-storage resistor R5, wherein:

[0114] The first end of the first anti-reverse diode D2 is electrically connected to the first end of the second load determination circuit 1021 and the second end of the first inductive load control module 103, the second end of the first anti-reverse diode D2 is electrically connected to the first end of the first anti-energy storage resistor R5, and the second end of the first anti-energy storage resistor R5 is electrically connected to the second end of the second load determination circuit 1021 and the first end of the second load selection circuit 1023.

[0115] Optionally, the first discharge protection circuit 1022 may include one or more first anti-reverse diodes D2 , and the first discharge protection circuit 1022 may include one or more first anti-power storage resistors R5 , which is not limited in the embodiment of the present invention.

[0116] Optional, such as Figure 2 As shown, when the gate voltage of the first load selection MOS tube M1 is greater than the threshold voltage of the first load selection MOS tube M1, the first load selection MOS tube M1 is turned on, and the first load determination capacitor C2 is introduced into the load loop in combination with the contact selection of the first load selection switch SW2 and the second load selection switch SW3, which is not limited in the embodiment of the present invention.

[0117] Optionally, the first anti-reverse diode D2 and the first anti-energy storage resistor R5 are used to ensure that after the capacitive load simulation and test are completed, a discharge circuit is formed with the first load to determine the capacitor C2 to discharge the capacitor and prevent electricity from being stored in the capacitor. In addition, the first anti-reverse diode D2 is used to control the current to flow in a specified direction to play a protective role, which is not limited in the embodiments of the present invention.

[0118] It can be seen that this optional embodiment can determine through the second load selection circuit whether the first load simulation demand indicates that capacitive load simulation is required or not, and output the corresponding capacitive load or the corresponding no-load through the second load determination circuit, thereby improving the accuracy and reliability of determining the first load simulation demand, and thereby improving the timeliness, accuracy and reliability of the execution of the capacitive load simulation operation, thereby improving the simulation accuracy and reliability of the capacitive load. In addition, a capacitor discharge loop is formed through the first discharge protection circuit to prevent electricity from being stored in the capacitor and to prevent current from flowing back to the battery, and to control the current to flow only in the expected direction, thereby realizing circuit protection, and improving the transmission smoothness and reliability of the circuit signal, thereby improving the operating stability and safety of the product.

[0119] In yet another optional embodiment, Figure 2 As shown, the first inductive load control module 103 includes a third load selection circuit 1031, a third load determination circuit 1032 and a second discharge protection circuit 1033, wherein:

[0120] A first end of the third load selection circuit 1031 is electrically connected to a second end of the resistive load control module 101, a second end of the third load selection circuit 1031 is electrically connected to a first end of the third load determination circuit 1032 and a first end of the second discharge protection circuit 1033, and a third end of the third load selection circuit 1031 is electrically connected to a second end of the third load determination circuit 1032, a second end of the second discharge protection circuit 1033, a first end of the capacitive load control module 102, and a first end of the second inductive load control module 104;

[0121] The third load selection circuit 1031 is specifically used to determine whether the first load simulation requirement indicates that the first inductive load simulation needs to be performed or does not need to be performed;

[0122] The third load determination circuit 1032 is specifically configured to output a corresponding first inductive load when the first load simulation requirement is used to indicate that the first inductive load simulation needs to be performed; and output a corresponding empty load when the first load simulation requirement is used to indicate that the first inductive load simulation does not need to be performed;

[0123] When the first load simulation requirement is used to indicate that a first inductive load simulation is required, the first end of the third load selection circuit 1031 is connected to the second end of the third load selection circuit 1031;

[0124] When the first load simulation requirement is used to indicate that the first inductive load simulation is not required, the first end of the third load selection circuit 1031 is connected to the third end of the third load selection circuit 1031 .

[0125] Further optional, such as Figure 2As shown, the third load selection circuit 1031 may include a second load selection switch SW3, wherein:

[0126] A first end of the second load selection switch SW3 is electrically connected to a second end of the resistive load control module 101, a second end of the second load selection switch SW3 is electrically connected to a first end of the third load determination circuit 1032 and a first end of the second discharge protection circuit 1033, and a third end of the second load selection switch SW3 is electrically connected to a second end of the third load determination circuit 1032, a second end of the second discharge protection circuit 1033, a first end of the capacitive load control module 102, and a first end of the second inductive load control module 104.

[0127] Further optional, such as Figure 2 As shown, the second end of the second load selection switch SW3 may correspond to the contact 3 in the second load selection switch SW3, and the third end of the second load selection switch SW3 may correspond to the contact 4 in the second load selection switch SW3, which is not limited in the embodiment of the present invention.

[0128] Optionally, the second load selection switch SW3 may be a single-pole double-throw switch, which is not limited in the embodiment of the present invention.

[0129] Further optional, such as Figure 2 As shown, the third load determination circuit 1032 may include a first load determination inductor L1, wherein:

[0130] A first end of the first load determination inductor L1 is electrically connected to a second end of the third load selection circuit 1031 and a first end of the second discharge protection circuit 1033, and a second end of the first load determination inductor L1 is electrically connected to a third end of the third load selection circuit 1031, a second end of the second discharge protection circuit 1033, a first end of the capacitive load control module 102, and a first end of the second inductive load control module 104.

[0131] Optionally, the first load determines the inductance L1, which may be an adjustable inductance or a non-adjustable inductance, which is not limited in the embodiment of the present invention.

[0132] Optionally, the third load determination circuit 1032 may include one or more first load determination inductors L1, which is not limited in this embodiment of the present invention.

[0133] Further optional, such as Figure 2 As shown, the second discharge protection circuit 1033 may include a first transient suppression diode TVS1, wherein:

[0134] A first end of the first transient suppression diode TVS1 is electrically connected to a first end of the third load determination circuit 1032 and a second end of the third load selection circuit 1031, and a second end of the first transient suppression diode TVS1 is electrically connected to a second end of the third load determination circuit 1032, a third end of the third load selection circuit 1031, a first end of the capacitive load control module 102, and a first end of the second inductive load control module 104.

[0135] Optionally, the second discharge protection circuit 1033 may include one or more first transient suppression diodes TVS1, which is not limited in the embodiment of the present invention.

[0136] Optionally, the first transient suppression diode TVS1 is used to provide a release loop for the energy in the first load determination inductor L1 to prevent the inductor energy from damaging other circuits and components, which is not limited in the embodiment of the present invention.

[0137] It can be seen that this optional embodiment can determine through the third load selection circuit whether the first load simulation demand indicates that the first inductive load simulation needs to be performed or does not need to be performed, and output the corresponding first inductive load or the corresponding no-load through the third load determination circuit, thereby improving the accuracy and reliability of determining the first load simulation demand, and thereby improving the timeliness, accuracy and reliability of executing the first inductive load simulation operation, thereby improving the simulation accuracy and reliability of the first inductive load. In addition, the second discharge protection circuit provides a release loop for the energy in the inductor to prevent the inductive energy from damaging the rest of the circuit and other devices, thereby realizing circuit protection, improving the transmission smoothness and reliability of the circuit signal, and thereby improving the operating stability and safety of the product.

[0138] In yet another optional embodiment, Figure 2 As shown, the second inductive load control module 104 includes a fourth load selection circuit 1041, a fifth load selection circuit 1042, a fourth load determination circuit 1043 and a third discharge protection circuit 1044, wherein:

[0139] A first end of the fourth load selection circuit 1041 is electrically connected to a third end of the first inductive load control module 103, a second end of the fourth load selection circuit 1041 is electrically connected to a first end of the fifth load selection circuit 1042, a second end of the fifth load selection circuit 1042 is electrically connected to a third end of the stabilization module 20, a third end of the capacitive load control module 102, a second end of the fourth load determination circuit 1043 and a second end of the third discharge protection circuit 1044, and a third end of the fifth load selection circuit 1042 is electrically connected to a first end of the fourth load determination circuit 1043 and a first end of the third discharge protection circuit 1044;

[0140] The fourth load selection circuit 1041 is specifically used to determine whether the first load simulation requirement indicates that the second inductive load simulation needs to be performed or does not need to be performed;

[0141] The fifth load selection circuit 1042 is specifically used to determine whether the first load simulation requirement indicates that the second inductive load simulation needs to be performed or does not need to be performed;

[0142] The fourth load determination circuit 1043 is specifically configured to output a corresponding second inductive load when the first load simulation requirement is used to indicate that the second inductive load simulation needs to be performed; and output a corresponding empty load when the second load simulation requirement is used to indicate that the second inductive load simulation does not need to be performed;

[0143] When the first load simulation requirement is used to indicate that the second inductive load simulation is required, the first end of the fourth load selection circuit 1041 is connected to the second end of the fourth load selection circuit 1041, and the first end of the fifth load selection circuit 1042 is connected to the third end of the fifth load selection circuit 1042;

[0144] When the first load simulation requirement is used to indicate that the second inductive load simulation is not required, the first end of the fourth load selection circuit 1041 is not connected to the second end of the fourth load selection circuit 1041, or the first end of the fourth load selection circuit 1041 is connected to the second end of the fourth load selection circuit 1041 and the first end of the fifth load selection circuit 1042 is connected to the second end of the fifth load selection circuit 1042.

[0145] Further optional, such as Figure 2 As shown, the fourth load selection circuit 1041 may include a third load selection switch SW5, wherein:

[0146] A first end of the third load selection switch SW5 is electrically connected to a third end of the first inductive load control module 103 , and a second end of the third load selection switch SW5 is electrically connected to a first end of the fifth load selection circuit 1042 .

[0147] Optionally, the second end of the third load selection switch SW5 may correspond to an opening and closing end, which is not limited in the embodiment of the present invention.

[0148] Further optional, such as Figure 2 As shown, the fifth load selection circuit 1042 may include a fourth load selection switch SW4, wherein:

[0149] A first end of the fourth load selection switch SW4 is electrically connected to a second end of the fourth load selection circuit 1041, a second end of the fourth load selection switch SW4 is electrically connected to a third end of the stabilization module 20, a third end of the capacitive load control module 102, a second end of the fourth load determination circuit 1043 and a second end of the third discharge protection circuit 1044, and a third end of the fourth load selection switch SW4 is electrically connected to a first end of the fourth load determination circuit 1043 and a first end of the third discharge protection circuit 1044.

[0150] Further optional, such as Figure 2 As shown, the second end of the fourth load selection switch SW4 may correspond to the contact 5 in the fourth load selection switch SW4, and the third end of the fourth load selection switch SW4 may correspond to the contact 6 in the fourth load selection switch SW4, which is not limited in the embodiment of the present invention.

[0151] Optionally, the fourth load selection switch SW4 may be a single-pole double-throw switch, which is not limited in the embodiment of the present invention.

[0152] Further optional, such as Figure 2 As shown, the fourth load determination circuit 1043 may include a second load determination inductor L2, wherein:

[0153] The second load determines that the first end of the inductor L2 is electrically connected to the third end of the fifth load selection circuit 1042 and the first end of the third discharge protection circuit 1044, and the second load determines that the second end of the inductor L2 is electrically connected to the third end of the stabilization module 20, the third end of the capacitive load control module 102, the second end of the fifth load selection circuit 1042 and the second end of the third discharge protection circuit 1044.

[0154] Optionally, the second load determines the inductance L2, which may be an adjustable inductance or a non-adjustable inductance, which is not limited in the embodiment of the present invention.

[0155] Optionally, the fourth load determination circuit 1043 may include one or more second load determination inductors L2, which is not limited in this embodiment of the present invention.

[0156] Further optional, such as Figure 2 As shown, the third discharge protection circuit 1044 may include a second transient suppression diode TVS2, wherein:

[0157] The first end of the second transient suppression diode TVS2 is electrically connected to the first end of the fourth load determination circuit 1043 and the third end of the fifth load selection circuit 1042, and the second end of the second transient suppression diode TVS2 is electrically connected to the third end of the stabilization module 20, the third end of the capacitive load control module 102, the second end of the fourth load determination circuit 1043 and the second end of the fifth load selection circuit 1042.

[0158] Optionally, the second transient suppression diode TVS2 is used to provide a release loop for the energy in the second load determination inductor L2 to prevent the inductor energy from damaging other circuits and electronic components, which is not limited in the embodiment of the present invention.

[0159] It can be seen that this optional embodiment can determine through the fourth load selection circuit and the fifth load selection circuit whether the first load simulation demand indicates that the second inductive load simulation is required or not, and output the corresponding second inductive load or the corresponding no-load through the fourth load determination circuit, thereby improving the accuracy and reliability of determining the first load simulation demand, and thereby improving the timeliness, accuracy and reliability of executing the second inductive load simulation operation, thereby improving the simulation accuracy and reliability of the second inductive load. In addition, the third discharge protection circuit provides a release loop for the energy in the inductor to prevent the inductive energy from damaging the rest of the circuit and other devices, thereby realizing circuit protection, improving the transmission smoothness and reliability of the circuit signal, and thereby improving the operating stability and safety of the product.

[0160] In yet another optional embodiment, Figure 2 As shown, the stabilization module 20 includes a gate voltage setting module 201 and a voltage stabilization protection module 202, wherein:

[0161] The first end of the gate voltage setting module 201 is electrically connected to the first end of the load switching module 10 and the positive end for electrically connecting to the power supply device 30, the second end of the gate voltage setting module 201 is electrically connected to the first end of the voltage stabilizing protection module 202, the third end of the gate voltage setting module 201 is electrically connected to the second end of the load switching module 10, and the fourth end of the gate voltage setting module 201 is electrically connected to the third and fourth ends of the load switching module 10, the second end of the voltage stabilizing protection module 202 and the negative end for electrically connecting to the power supply device 30.

[0162] Optionally, the gate voltage setting module 201 is specifically used to set the gate voltage of the first load selection MOS tube M1, and further control whether the first load selection MOS tube M1 is turned on or off, thereby introducing a capacitive load, which is not limited in the embodiment of the present invention.

[0163] Optionally, the voltage stabilization protection module 202 is specifically used to control the gate voltage of the first load selection MOS tube M1 not to change suddenly, and to prevent the gate voltage of the first load selection MOS tube M1 from changing suddenly and exceeding the MOS gate withstand voltage threshold, so as to enhance the protection effect of the first load selection MOS tube M1, which is not limited in the embodiment of the present invention.

[0164] It can be seen that this optional embodiment can realize the gate voltage setting control function through the gate voltage setting module, control the feasibility of capacitive load simulation by controlling the size of the gate voltage, control the conduction state of the load switching module connected to the gate voltage setting module, improve the circuit conduction control accuracy and reliability of the load switching module, and improve the circuit conduction control efficiency and convenience of the load switching module. In addition, the voltage stabilization protection function of the circuit involved is realized through the voltage stabilization protection module, and the stability, accuracy, reliability and controllability of the output voltage are improved, thereby improving the operating stability and reliability of the relevant circuits and the overall battery, and reducing the probability and degree of damage to circuit components when abnormal conditions occur in the circuit.

[0165] In yet another optional embodiment, Figure 2 As shown, the gate voltage setting module 201 includes a first voltage dividing circuit 2011, a second voltage dividing circuit 2012, a third voltage dividing circuit 2013 and a capacitive introduction control circuit 2014, wherein:

[0166] The first end of the first voltage-dividing circuit 2011 is electrically connected to the first end of the load switching module 10 and the positive terminal for electrically connecting to the power supply device 30, the second end of the first voltage-dividing circuit 2011 is electrically connected to the first end of the voltage-stabilizing protection module 202 and the first end of the capacitive introduction control circuit 2014, the second end of the capacitive introduction control circuit 2014 is electrically connected to the first end of the second voltage-dividing circuit 2012, the second end of the second voltage-dividing circuit 2012 is electrically connected to the first end of the third voltage-dividing circuit 2013 and the second end of the load switching module 10, the second end of the third voltage-dividing circuit 2013 is electrically connected to the third and fourth ends of the load switching module 10, the second end of the voltage-stabilizing protection module 202 and the negative terminal for electrically connecting to the power supply device 30;

[0167] When the first load simulation requirement is used to indicate that capacitive load simulation is required, the first end of the capacitive introduction control circuit 2014 is connected to the second end of the capacitive introduction control circuit 2014;

[0168] When the first load simulation requirement is used to indicate that capacitive load simulation is not required, the first end of the capacitive introduction control circuit 2014 is disconnected from the second end of the capacitive introduction control circuit 2014 .

[0169] Further optional, such as Figure 2 As shown, the first voltage divider circuit 2011 may include a first voltage divider resistor R1, wherein:

[0170] The first end of the first voltage-dividing resistor R1 is electrically connected to the first end of the load switching module 10 and the positive terminal for electrically connecting to the power supply device 30 . The second end of the first voltage-dividing resistor R1 is electrically connected to the first end of the voltage stabilizing protection module 202 and the first end of the capacitive introduction control circuit 2014 .

[0171] Optionally, the first voltage-dividing circuit 2011 may include one or more first voltage-dividing resistors R1, which is not limited in the embodiment of the present invention.

[0172] Further optional, such as Figure 2 As shown, the second voltage divider circuit 2012 may include a second voltage divider resistor R2, wherein:

[0173] A first end of the second voltage-dividing resistor R2 is electrically connected to a second end of the capacitive introduction control circuit 2014 , and a second end of the second voltage-dividing resistor R2 is electrically connected to a first end of the third voltage-dividing circuit 2013 and a second end of the load switching module 10 .

[0174] Optionally, the second voltage-dividing circuit 2012 may include one or more second voltage-dividing resistors R2, which is not limited in the embodiment of the present invention.

[0175] Further optional, such as Figure 2 As shown, the third voltage dividing circuit 2013 may include a third voltage dividing resistor R3, wherein:

[0176] The first end of the third voltage-dividing resistor R3 is electrically connected to the second end of the second voltage-dividing circuit 2012 and the second end of the load switching module 10, and the second end of the third voltage-dividing resistor R3 is electrically connected to the third and fourth ends of the load switching module 10, the second end of the voltage stabilizing protection module 202 and the negative terminal for electrically connecting to the power supply device 30.

[0177] Optionally, the third voltage-dividing circuit 2013 may include one or more third voltage-dividing resistors R3, which is not limited in the embodiment of the present invention.

[0178] Further optional, such as Figure 2 As shown, the capacitive introduction control circuit 2014 may include a first introduction control switch SW1, wherein:

[0179] A first end of the first introduction control switch SW1 is electrically connected to a first end of the voltage stabilization protection module 202 and a second end of the first voltage divider circuit 2011 , and a second end of the first introduction control switch SW1 is electrically connected to a first end of the second voltage divider circuit 2012 .

[0180] Optionally, the second end of the first introduction control switch SW1 may correspond to an opening and closing end, which is not limited in the embodiment of the present invention.

[0181] Optional, regarding the introduction of capacitive load, an example is given: Figure 2As shown, the first introduction control switch SW1 is closed, the power supply device 30 and the first voltage-dividing resistor R1, the second voltage-dividing resistor R2, and the third voltage-dividing resistor R3 form a path, and the gate voltage VGS of the first load selection MOS tube M1 is divided by R1, R2, and R3. A reasonable resistance value voltage-dividing ratio is set. According to the characteristics of the MOS tube, when the gate voltage of the first load selection MOS tube M1 is greater than its corresponding threshold voltage, the first load selection MOS tube M1 is turned on, and the first load determination capacitor C2 is introduced into the load loop in combination with the contact selection of the first load selection switch SW2 and the second load selection switch SW3. The embodiment of the present invention is not limited thereto.

[0182] Furthermore, an example is given for the role of the first introduction control switch SW1: introducing a capacitive load C2. Since the capacitive load is relatively special, if it is a pure capacitive load circuit, because the voltage across the capacitor cannot change suddenly, the voltage of the power supply device 30 is 12V, and the first load determines that the voltage across the capacitor C2 is 0V. When the capacitive load is powered on for the first time, a transient large current will be generated. The design of SW1 and related circuits can relatively safely control the first load selection MOS tube M1, so that the transient large current flows through the first load selection MOS tube M1, which is safer. The embodiment of the present invention is not limited to this.

[0183] It can be seen that this optional embodiment can realize the voltage dividing function of the gate voltage through the first voltage dividing circuit, the second voltage dividing circuit and the third voltage dividing circuit, set a reasonable resistance voltage dividing ratio, improve the accuracy and reliability of the determined gate voltage, and thus improve the control accuracy and reliability of circuit conduction and load introduction based on the gate voltage. In addition, the basic control function of capacitive load simulation is realized through the capacitive introduction control circuit 2014, and the control accuracy and reliability of the introduction of capacitive loads are improved, thereby improving the flexibility and diversity of load simulation, and reducing unnecessary energy consumption when the relevant load simulation type is not required.

[0184] In yet another optional embodiment, Figure 2 As shown, the gate voltage setting module 201 further includes a fourth discharge protection circuit 2015, wherein:

[0185] A first end of the fourth discharge protection circuit 2015 is electrically connected to a second end of the capacitive introduction control circuit 2014 , and a second end of the fourth discharge protection circuit 2015 is electrically connected to a first end of the second voltage divider circuit 2012 .

[0186] Further optional, such as Figure 2 As shown, the fourth discharge protection circuit 2015 may include a second anti-reverse diode D1, wherein:

[0187] A first end of the second anti-reverse diode D1 is electrically connected to a second end of the capacitive introduction control circuit 2014 , and a second end of the second anti-reverse diode D1 is electrically connected to a first end of the second voltage divider circuit 2012 .

[0188] Optionally, the second anti-reverse diode D1 is specifically used to control the current to flow in a specified direction to prevent the current from flowing back to the battery, thereby playing a protective role, which is not limited in the embodiment of the present invention.

[0189] It can be seen that this optional embodiment can realize the discharge protection function through the fourth discharge protection circuit, prevent the current from flowing back to the battery, control the current to flow only in the expected direction, realize circuit protection, improve the transmission smoothness and reliability of the circuit signal, and thus improve the operating stability and safety of the product.

[0190] In yet another optional embodiment, Figure 2 As shown, the voltage stabilization protection module 202 includes a circuit 2021 for preventing sudden changes and a circuit 2022 for preventing excessive sudden changes, wherein:

[0191] The first end of the mutation prevention circuit 2021 is electrically connected to the first end of the excessive mutation prevention circuit 2022 and the second end of the gate voltage setting module 201. The second end of the mutation prevention circuit 2021 is electrically connected to the second end of the excessive mutation prevention circuit 2022, the third and fourth ends of the load switching module 10, the fourth end of the gate voltage setting module 201 and the negative terminal for electrically connecting to the power supply device 30.

[0192] Further optional, such as Figure 2 As shown, the circuit 2021 for preventing sudden changes may include a first voltage-controlled capacitor C1, wherein:

[0193] The first end of the first voltage-controlled capacitor C1 is electrically connected to the first end of the excessive mutation prevention circuit 2022 and the second end of the gate voltage setting module 201, and the second end of the first voltage-controlled capacitor C1 is electrically connected to the second end of the excessive mutation prevention circuit 2022, the third and fourth ends of the load switching module 10, the fourth end of the gate voltage setting module 201 and the negative terminal for electrically connecting to the power supply device 30.

[0194] Optionally, the first load selection MOS tube M1 is specifically used to ensure that the gate voltage of the first load selection MOS tube M1 does not change suddenly, which is not limited in the embodiment of the present invention.

[0195] Further optional, such as Figure 2 As shown, the excessive mutation prevention circuit 2022 may include a first voltage-controlled voltage regulator tube Z1, wherein:

[0196] The first end of the first voltage-controlled voltage-stabilizing tube Z1 is electrically connected to the first end of the circuit for preventing sudden changes 2021 and the second end of the gate voltage setting module 201, and the second end of the first voltage-controlled voltage-stabilizing tube Z1 is electrically connected to the second end of the circuit for preventing sudden changes 2021, the third and fourth ends of the load switching module 10, the fourth end of the gate voltage setting module 201 and the negative terminal for electrically connecting to the power supply device 30.

[0197] Optionally, the first voltage-controlled voltage regulator Z1 is specifically used to prevent the gate voltage of the first load selection MOS tube M1 from exceeding the gate withstand voltage threshold of the first load selection MOS tube M1, thereby protecting the first load selection MOS tube M1, which is not limited in the embodiment of the present invention.

[0198] It can be seen that this optional embodiment can realize the gate voltage mutation control function by preventing the occurrence of mutation circuits, ensuring that the gate voltage does not mutate, and prevent the gate voltage from mutating beyond the gate withstand voltage threshold by preventing excessive mutation circuits, thereby improving the control accuracy and reliability of the gate voltage, as well as improving the control efficiency and convenience of the gate voltage, thereby improving the stability of the gate voltage, reducing the risk of damage to electronic components due to gate voltage mutations, reducing the phenomenon of electromagnetic interference caused by gate voltage mutations, and thereby improving the safety of electronic components and the stability of circuits.

[0199] Embodiment 2

[0200] See also Figure 3 As shown, Figure 3 1 is a flow chart of a method for simulating a battery load disclosed in an embodiment of the present invention, wherein the method is applied to a device for simulating a battery load, wherein the device includes a load switching module and a stabilization module, wherein:

[0201] The first end of the load switching module is electrically connected to the first end of the stabilization module and is used to electrically connect to the positive end of the power supply device, the second end of the load switching module is electrically connected to the second end of the stabilization module, the third end and the fourth end of the load switching module are electrically connected to the third end of the stabilization module, and the fourth end of the stabilization module is used to electrically connect to the negative end of the power supply device;

[0202] like Figure 3 As shown, the method may include the following steps:

[0203] 101. The load switching module performs a corresponding load simulation operation according to a detected first load simulation demand, wherein the first load simulation demand includes a required load property and a corresponding required load value, and the first load simulation demand is reflected by a first switch contact switching operation of the user.

[0204] 102. The stabilization module performs corresponding load introduction and stabilization operations according to the detected second load simulation demand and the set load stabilization demand. The second load simulation demand is reflected by the user's second switch contact switching operation.

[0205] It can be seen that the implementation of the embodiment of the present invention can be based on the simulation settings under different vehicle environments, and the corresponding load simulation operation can be performed according to the detected first load simulation requirement through the load switching module; the corresponding load introduction and stabilization operations can be performed according to the detected second load simulation requirement and the set load stabilization requirement through the stabilization module, which can realize the simulation settings of the battery load under different vehicle environments, improve the simulation flexibility, accuracy and reliability of the battery load, and improve the simulation efficiency and convenience of the battery load, thereby improving the versatility and pertinence of the battery load simulation, and improving the safety and operational stability of the battery load simulation process, thereby improving the operational reliability and adjustment timeliness of the battery, and further improving the user's battery usage experience.

[0206] In an optional embodiment, the load switching module may include a resistive load control module and a capacitive load control module, wherein:

[0207] The first end of the resistive load control module is electrically connected to the first end of the stabilization module and the positive terminal for electrically connecting to the power supply device, the second end of the resistive load control module is electrically connected to the first end of the capacitive-inductive load control module, the second end of the capacitive-inductive load control module is electrically connected to the second end of the stabilization module, and the third end and the fourth end of the capacitive-inductive load control module are electrically connected to the third end of the stabilization module;

[0208] Furthermore, in the above step 101, the load switching module performs the corresponding load simulation operation according to the detected first load simulation requirement, specifically including:

[0209] The resistive load control module performs a corresponding resistive load control operation according to the detected first load simulation demand;

[0210] The capacitive and inductive load control module performs corresponding capacitive and inductive load control operations according to the detected first load simulation demand.

[0211] It can be seen that this optional embodiment can realize the resistive load control simulation function of the battery through the resistive load control module, and realize the capacitive and inductive load control simulation function of the battery through the capacitive and inductive load control module, thereby improving the diversity and flexibility of battery load simulation types, and improving the pertinence and rationality of simulation operation modes for different battery load simulation types, thereby improving the accuracy and reliability of battery load simulation control, as well as improving the efficiency and convenience of battery load simulation control, and reducing the limitations of battery load simulation.

[0212] In another optional embodiment, the capacitive-inductive load control module may include a capacitive load control module, a first inductive load control module and a second inductive load control module, wherein:

[0213] The first end of the first inductive load control module is electrically connected to the second end of the resistive load control module, the second end of the first inductive load control module is electrically connected to the first end of the capacitive load control module, the third end of the first inductive load control module is electrically connected to the first end of the second inductive load control module, the second end of the capacitive load control module is electrically connected to the second end of the stabilization module, and the third end of the capacitive load control module and the second end of the second inductive load control module are electrically connected to the third end of the stabilization module;

[0214] Furthermore, the capacitive and inductive load control module performs corresponding capacitive and inductive load control operations according to the detected first load simulation demand, specifically including:

[0215] The capacitive load simulation control module performs a corresponding capacitive load control operation according to the detected first load simulation demand;

[0216] The first inductive load regulation operation performs a corresponding first inductive load regulation operation according to the detected first load simulation demand;

[0217] The second inductive load regulation operation performs a corresponding second inductive load regulation operation according to the detected first load simulation demand.

[0218] It can be seen that this optional embodiment can realize the capacitive load control simulation function of the battery through the capacitive load control module, and can realize the corresponding inductive load control simulation function through the first inductive load control module and the second inductive load control module respectively, thereby improving the diversity and flexibility of battery load simulation types, and improving the pertinence and rationality of the capacitive load control simulation method, thereby improving the accuracy and reliability of the capacitive load control simulation. In addition, it also improves the pertinence, rationality and selectivity of the inductive load control simulation method, thereby improving the accuracy and reliability of the inductive load control simulation.

[0219] In yet another optional embodiment, the resistive load control module may include a first load selection circuit and a first load determination circuit, wherein:

[0220] The first end of the first load selection circuit is electrically connected to the first end of the stabilization module and the positive terminal for electrically connecting to the power supply device, the second end of the first load selection circuit is electrically connected to the first end of the first load determination circuit, and the third end of the first load selection circuit is electrically connected to the first end of the capacitive and inductive load control module and the second end of the first load determination circuit.

[0221] Furthermore, the resistive load control module performs the corresponding resistive load control operation according to the detected first load simulation demand, specifically including:

[0222] The first load selection circuit determines that the first load simulation requirement indicates that resistive load simulation is required or resistive load simulation is not required;

[0223] When the first load simulation requirement is used to indicate that resistive load simulation is required, the first load determination circuit outputs a corresponding resistive load; when the first load simulation requirement is used to indicate that resistive load simulation is not required, the first load outputs a corresponding empty load.

[0224] Further, when the first load simulation requirement is used to indicate that resistive load simulation is required, the first end of the first load selection circuit is connected to the second end of the first load selection circuit; when the first load simulation requirement is used to indicate that resistive load simulation is not required, the first end of the first load selection circuit is connected to the third end of the first load selection circuit.

[0225] It can be seen that this optional embodiment can determine through the first load selection circuit that the first load simulation requirement indicates that resistive load simulation is required or not, and output the corresponding resistive load or the corresponding empty load through the first load determination circuit, thereby improving the accuracy and reliability of determining the first load simulation requirement, and then improving the timeliness, accuracy and reliability of executing the resistive load simulation operation, thereby improving the simulation accuracy and reliability of the resistive load.

[0226] In yet another optional embodiment, the capacitive load control module may include a second load determination circuit, a first discharge protection circuit and a second load selection circuit, wherein:

[0227] The first end of the second load determination circuit and the first end of the first discharge protection circuit are electrically connected to the second end of the first inductive load control module, the second end of the second load determination circuit and the second end of the first discharge protection circuit are electrically connected to the first end of the second load selection circuit, the second end of the second load selection circuit is electrically connected to the second end of the stabilization module, and the third end of the second load selection circuit is electrically connected to the second end of the second inductive load control module and the third end of the stabilization module.

[0228] Further, the capacitive load simulation control module performs the corresponding capacitive load control operation according to the detected first load simulation requirement, specifically including:

[0229] The second load selection circuit determines that the first load simulation requirement indicates that capacitive load simulation is required or not required;

[0230] When the first load simulation requirement is used to indicate that capacitive load simulation is required, the second load determination circuit outputs a corresponding capacitive load;

[0231] When the first load simulation requirement is used to indicate that capacitive load simulation is not required, the second load determination circuit outputs a corresponding empty load.

[0232] Further, when the first load simulation requirement is used to indicate that capacitive load simulation is required, the first terminal, the second terminal and the third terminal of the second load selection circuit are turned on;

[0233] When the first load simulation requirement is used to indicate that capacitive load simulation is not required, the first terminal, the second terminal and the third terminal of the second load selection circuit are not conducting.

[0234] It can be seen that this optional embodiment can determine through the second load selection circuit whether the first load simulation demand indicates that capacitive load simulation is required or not, and output the corresponding capacitive load or the corresponding no-load through the second load determination circuit, thereby improving the accuracy and reliability of determining the first load simulation demand, and thereby improving the timeliness, accuracy and reliability of the execution of the capacitive load simulation operation, thereby improving the simulation accuracy and reliability of the capacitive load. In addition, a capacitor discharge loop is formed through the first discharge protection circuit to prevent electricity from being stored in the capacitor and to prevent current from flowing back to the battery, and to control the current to flow only in the expected direction, thereby realizing circuit protection, and improving the transmission smoothness and reliability of the circuit signal, thereby improving the operating stability and safety of the product.

[0235] In yet another optional embodiment, the first inductive load control module may include a third load selection circuit, a third load determination circuit and a second discharge protection circuit, wherein:

[0236] The first end of the third load selection circuit is electrically connected to the second end of the resistive load control module, the second end of the third load selection circuit is electrically connected to the first end of the third load determination circuit and the first end of the second discharge protection circuit, and the third end of the third load selection circuit is electrically connected to the second end of the third load determination circuit, the second end of the second discharge protection circuit, the first end of the capacitive load control module, and the first end of the second inductive load control module.

[0237] Furthermore, the first inductive load regulation operation performs the corresponding first inductive load regulation operation according to the detected first load simulation demand, specifically including:

[0238] The third load selection circuit determines that the first load simulation requirement indicates that the first inductive load simulation needs to be performed or that the first inductive load simulation does not need to be performed;

[0239] When the first load simulation requirement is used to indicate that a first inductive load simulation is required, the third load determination circuit outputs a corresponding first inductive load;

[0240] When the first load simulation requirement is used to indicate that the first inductive load simulation is not required, the third load determination circuit outputs a corresponding empty load.

[0241] Further, when the first load simulation requirement is used to indicate that a first inductive load simulation is required, the first end of the third load selection circuit is connected to the second end of the third load selection circuit;

[0242] When the first load simulation requirement is used to indicate that the first inductive load simulation is not required, the first end of the third load selection circuit is connected to the third end of the third load selection circuit.

[0243] It can be seen that this optional embodiment can determine through the third load selection circuit whether the first load simulation demand indicates that the first inductive load simulation needs to be performed or does not need to be performed, and output the corresponding first inductive load or the corresponding no-load through the third load determination circuit, thereby improving the accuracy and reliability of determining the first load simulation demand, and thereby improving the timeliness, accuracy and reliability of executing the first inductive load simulation operation, thereby improving the simulation accuracy and reliability of the first inductive load. In addition, the second discharge protection circuit provides a release loop for the energy in the inductor to prevent the inductive energy from damaging the rest of the circuit and other devices, thereby realizing circuit protection, improving the transmission smoothness and reliability of the circuit signal, and thereby improving the operating stability and safety of the product.

[0244] In yet another optional embodiment, the second inductive load control module may include a fourth load selection circuit, a fifth load selection circuit, a fourth load determination circuit and a third discharge protection circuit, wherein:

[0245] The first end of the fourth load selection circuit is electrically connected to the third end of the first inductive load control module, the second end of the fourth load selection circuit is electrically connected to the first end of the fifth load selection circuit, the second end of the fifth load selection circuit is electrically connected to the third end of the stabilization module, the third end of the capacitive load control module, the second end of the fourth load determination circuit and the second end of the third discharge protection circuit, and the third end of the fifth load selection circuit is electrically connected to the first end of the fourth load determination circuit and the first end of the third discharge protection circuit.

[0246] Further, the fourth load selection circuit determines that the first load simulation requirement indicates that the second inductive load simulation needs to be performed or that the second inductive load simulation does not need to be performed;

[0247] The fifth load selection circuit determines that the first load simulation requirement indicates that the second inductive load simulation needs to be performed or that the second inductive load simulation does not need to be performed;

[0248] When the first load simulation requirement is used to indicate that a second inductive load simulation is required, the fourth load determination circuit outputs a corresponding second inductive load;

[0249] When the second load simulation requirement is used to indicate that the second inductive load simulation is not required, the fourth load determination circuit outputs a corresponding empty load.

[0250] Further, when the first load simulation requirement is used to indicate that a second inductive load simulation is required, the first end of the fourth load selection circuit is connected to the second end of the fourth load selection circuit, and the first end of the fifth load selection circuit is connected to the third end of the fifth load selection circuit;

[0251] When the first load simulation requirement is used to indicate that the second inductive load simulation is not required, the first end of the fourth load selection circuit is not connected to the second end of the fourth load selection circuit, or the first end of the fourth load selection circuit is connected to the second end of the fourth load selection circuit and the first end of the fifth load selection circuit is connected to the second end of the fifth load selection circuit.

[0252] It can be seen that this optional embodiment can determine through the fourth load selection circuit and the fifth load selection circuit whether the first load simulation demand indicates that the second inductive load simulation is required or not, and output the corresponding second inductive load or the corresponding no-load through the fourth load determination circuit, thereby improving the accuracy and reliability of determining the first load simulation demand, and thereby improving the timeliness, accuracy and reliability of executing the second inductive load simulation operation, thereby improving the simulation accuracy and reliability of the second inductive load. In addition, the third discharge protection circuit provides a release loop for the energy in the inductor to prevent the inductive energy from damaging the rest of the circuit and other devices, thereby realizing circuit protection, improving the transmission smoothness and reliability of the circuit signal, and thereby improving the operating stability and safety of the product.

[0253] Embodiment 3

[0254] See also Figure 4 As shown, Figure 4 1 is a schematic diagram of the structure of an electronic device disclosed in an embodiment of the present invention, and the circuit board includes any device for simulating battery load as in Embodiment 1. It should be noted that for a detailed description of the device for simulating battery load, please refer to the specific description of the relevant content in Embodiment 1, which will not be repeated in this embodiment.

[0255] It can be seen that the implementation Figure 4The electronic device described can perform corresponding load simulation operations based on simulation settings under different vehicle environments according to the detected first load simulation requirements through the load switching module; and perform corresponding load introduction and stabilization operations according to the detected second load simulation requirements and the set load stabilization requirements through the stabilization module. It can realize simulation settings of battery loads under different vehicle environments, improve the simulation flexibility, accuracy and reliability of the battery load, and improve the simulation efficiency and convenience of the battery load, thereby improving the versatility and pertinence of battery load simulation, as well as improving the safety and operational stability during the battery load simulation process, thereby improving the operational reliability and adjustment timeliness of the battery, and further improving the user's battery usage experience.

[0256] The above is a detailed introduction to the device, method and electronic device for simulating battery load disclosed in the embodiments of the present invention. Specific embodiments are used in this article to illustrate the principles and implementation methods of the present invention, but the above preferred embodiments are not used to limit the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for those skilled in the art, according to the idea of ​​the present invention, without departing from the spirit and scope of the present invention, there will be changes in the specific implementation methods and application scopes. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A device for simulating battery load, characterized in that: The device comprises a load switching module and a stabilization module, wherein: The first end of the load switching module is electrically connected to the first end of the stabilization module and is used to electrically connect to the positive terminal of the power supply device, the second end of the load switching module is electrically connected to the second end of the stabilization module, the third end and the fourth end of the load switching module are electrically connected to the third end of the stabilization module, and the fourth end of the stabilization module is used to electrically connect to the negative terminal of the power supply device; The load switching module is used to perform corresponding load simulation operations; The stabilization maintenance module is used to perform corresponding load introduction and stabilization maintenance operations.

2. The device for simulating battery load according to claim 1, characterized in that: The load switching module includes a resistive load control module and a capacitive load control module, wherein: The first end of the resistive load control module is electrically connected to the first end of the stabilization maintenance module and the positive end for electrically connecting to the power supply device, the second end of the resistive load control module is electrically connected to the first end of the capacitive and inductive load control module, the second end of the capacitive and inductive load control module is electrically connected to the second end of the stabilization maintenance module, and the third and fourth ends of the capacitive and inductive load control module are electrically connected to the third end of the stabilization maintenance module.

3. The device for simulating battery load according to claim 2, characterized in that: The capacitive and inductive load control module includes a capacitive load control module, a first inductive load control module and a second inductive load control module, wherein: The first end of the first inductive load control module is electrically connected to the second end of the resistive load control module, the second end of the first inductive load control module is electrically connected to the first end of the capacitive load control module, the third end of the first inductive load control module is electrically connected to the first end of the second inductive load control module, the second end of the capacitive load control module is electrically connected to the second end of the stabilization maintenance module, and the third end of the capacitive load control module and the second end of the second inductive load control module are electrically connected to the third end of the stabilization maintenance module.

4. The device for simulating battery load according to claim 2, characterized in that: The resistive load control module includes a first load selection circuit and a first load determination circuit, wherein: The first end of the first load selection circuit is electrically connected to the first end of the stabilization module and the positive terminal for electrically connecting to the power supply device, the second end of the first load selection circuit is electrically connected to the first end of the first load determination circuit, and the third end of the first load selection circuit is electrically connected to the first end of the capacitive and inductive load control module and the second end of the first load determination circuit; The first load selection circuit is specifically used to determine whether to perform resistive load simulation; The first load determination circuit is specifically used to output a corresponding resistive load or output a corresponding empty load; Wherein, when the resistive load simulation is required, the first end of the first load selection circuit is connected to the second end of the first load selection circuit; When the resistive load simulation is not required, the first end of the first load selection circuit is connected to the third end of the first load selection circuit.

5. The device for simulating battery load according to claim 3, characterized in that: The capacitive load control module includes a second load determination circuit, a first discharge protection circuit and a second load selection circuit, wherein: A first end of the second load determination circuit and a first end of the first discharge protection circuit are electrically connected to a second end of the first inductive load control module, a second end of the second load determination circuit and a second end of the first discharge protection circuit are electrically connected to a first end of the second load selection circuit, a second end of the second load selection circuit is electrically connected to a second end of the stabilization maintenance module, and a third end of the second load selection circuit is electrically connected to a second end of the second inductive load control module and a third end of the stabilization maintenance module; The second load selection circuit is specifically used to determine whether to perform capacitive load simulation; The second load determination circuit is specifically used to output a corresponding capacitive load or output a corresponding empty load; Wherein, when the capacitive load simulation is required, the first end, the second end and the third end of the second load selection circuit are turned on; When the capacitive load simulation is not required, the first terminal, the second terminal and the third terminal of the second load selection circuit are not conducting; Furthermore, the first inductive load control module includes a third load selection circuit, a third load determination circuit and a second discharge protection circuit, wherein: The first end of the third load selection circuit is electrically connected to the second end of the resistive load control module, the second end of the third load selection circuit is electrically connected to the first end of the third load determination circuit and the first end of the second discharge protection circuit, and the third end of the third load selection circuit is electrically connected to the second end of the third load determination circuit, the second end of the second discharge protection circuit, the first end of the capacitive load control module, and the first end of the second inductive load control module; The third load selection circuit is specifically used to determine whether to perform the first inductive load simulation; The third load determination circuit is specifically used to output the corresponding first inductive load or output the corresponding empty load; Wherein, when the first inductive load simulation is required, the first end of the third load selection circuit is connected to the second end of the third load selection circuit; When the first inductive load simulation is not required, the first end of the third load selection circuit is connected to the third end of the third load selection circuit; Furthermore, the second inductive load control module includes a fourth load selection circuit, a fifth load selection circuit, a fourth load determination circuit and a third discharge protection circuit, wherein: The first end of the fourth load selection circuit is electrically connected to the third end of the first inductive load control module, the second end of the fourth load selection circuit is electrically connected to the first end of the fifth load selection circuit, the second end of the fifth load selection circuit is electrically connected to the third end of the stabilization module, the third end of the capacitive load control module, the second end of the fourth load determination circuit and the second end of the third discharge protection circuit, and the third end of the fifth load selection circuit is electrically connected to the first end of the fourth load determination circuit and the first end of the third discharge protection circuit; The fourth load selection circuit is specifically used to determine whether to perform a second inductive load simulation; The fifth load selection circuit is specifically used to determine whether to perform the second inductive load simulation; The fourth load determination circuit is specifically used to output the corresponding second inductive load or output the corresponding empty load; Wherein, when the second inductive load simulation is required, the first end of the fourth load selection circuit is connected to the second end of the fourth load selection circuit, and the first end of the fifth load selection circuit is connected to the third end of the fifth load selection circuit; When the second inductive load simulation is not required, the first end of the fourth load selection circuit is not connected to the second end of the fourth load selection circuit, or the first end of the fourth load selection circuit is connected to the second end of the fourth load selection circuit and the first end of the fifth load selection circuit is connected to the second end of the fifth load selection circuit.

6. The device for simulating battery load according to any one of claims 1 to 5, characterized in that: The stabilization module includes a gate voltage setting module and a voltage stabilization protection module, wherein: The first end of the gate voltage setting module is electrically connected to the first end of the load switching module and is used to electrically connect to the positive terminal of the power supply device, the second end of the gate voltage setting module is electrically connected to the first end of the voltage stabilizing protection module, the third end of the gate voltage setting module is electrically connected to the second end of the load switching module, and the fourth end of the gate voltage setting module is electrically connected to the third and fourth ends of the load switching module, the second end of the voltage stabilizing protection module, and is used to electrically connect to the negative terminal of the power supply device.

7. The device for simulating battery load according to claim 6, characterized in that: The gate voltage setting module includes a first voltage dividing circuit, a second voltage dividing circuit, a third voltage dividing circuit and a capacitive introduction control circuit, wherein: The first end of the first voltage-dividing circuit is electrically connected to the first end of the load switching module and the positive terminal for electrically connecting to the power supply device, the second end of the first voltage-dividing circuit is electrically connected to the first end of the voltage-stabilizing protection module and the first end of the capacitive introduction control circuit, the second end of the capacitive introduction control circuit is electrically connected to the first end of the second voltage-dividing circuit, the second end of the second voltage-dividing circuit is electrically connected to the first end of the third voltage-dividing circuit and the second end of the load switching module, the second end of the third voltage-dividing circuit is electrically connected to the third and fourth ends of the load switching module, the second end of the voltage-stabilizing protection module and the negative terminal for electrically connecting to the power supply device; Wherein, when capacitive load simulation is required, the first end of the capacitive introduction control circuit is connected to the second end of the capacitive introduction control circuit; When capacitive load simulation is not required, the first end of the capacitive introduction control circuit is disconnected from the second end of the capacitive introduction control circuit; Furthermore, the gate voltage setting module further includes a fourth discharge protection circuit, wherein: A first end of the fourth discharge protection circuit is electrically connected to a second end of the capacitive introduction control circuit, and a second end of the fourth discharge protection circuit is electrically connected to a first end of the second voltage divider circuit.

8. The device for simulating battery load according to claim 6, characterized in that: The voltage stabilization protection module includes a circuit for preventing sudden changes and a circuit for preventing excessive sudden changes, wherein: The first end of the circuit for preventing mutations is electrically connected to the first end of the circuit for preventing excessive mutations and the second end of the gate voltage setting module, and the second end of the circuit for preventing mutations is electrically connected to the second end of the circuit for preventing excessive mutations, the third and fourth ends of the load switching module, the fourth end of the gate voltage setting module and the negative terminal for electrically connecting to the power supply device.

9. A method for simulating a battery load, the method being applied to a device for simulating a battery load, characterized in that: The device comprises a load switching module and a stabilization module, wherein: The first end of the load switching module is electrically connected to the first end of the stabilization module and is used to electrically connect to the positive terminal of the power supply device, the second end of the load switching module is electrically connected to the second end of the stabilization module, the third end and the fourth end of the load switching module are electrically connected to the third end of the stabilization module, and the fourth end of the stabilization module is used to electrically connect to the negative terminal of the power supply device; The method comprises: The load switching module performs a corresponding load simulation operation according to the detected first load simulation demand, wherein the first load simulation demand includes a required load property and a corresponding required load value, and the first load simulation demand is reflected by a first switch contact switching operation of the user; The stabilization maintenance module performs corresponding load introduction and stabilization maintenance operations according to the detected second load simulation requirement and the set load stabilization maintenance requirement, and the second load simulation requirement is reflected by the user's second switch contact switching operation.

10. An electronic device, characterized in that: The circuit board comprises a device for simulating a battery load as claimed in any one of claims 1 to 8.

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