Power grid isolation module recommendation method, computer equipment and program product

Abstract

The invention provides a power grid isolation module recommendation method, computer equipment and a program product, and the method can determine current capacity values required by a to-be-deployed power grid isolation module in a vehicle power distribution system under different working conditions according to load demands corresponding to different working conditions. And determining a target current capacity value matched with the power grid isolation module according to the current capacity value, thereby generating deployment recommendation information of the power grid isolation module, and indicating specification information of the power grid isolation module matched with the target current capacity value, so that the deployed power grid isolation module can meet current requirements of various working conditions, and can meet requirements of various working conditions. And the specification of the power grid isolation module can be controlled, so that the cost of the power grid isolation module is controlled.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle technology, and in particular to a method for recommending a power grid isolation module, a computer device, and a program product. Background Art

[0002] There are some low-voltage controllers in the vehicle that are powered by a low-voltage power supply. These controllers can be connected in parallel and powered by power supply devices such as generators, DC-DC (DCDC) converters, and power batteries. In some scenarios, the DCDC converter can charge the power battery while powering the controller; in some scenarios, the current provided by the DCDC converter is not enough to meet the working requirements of the controller, and the power battery can assist in powering. Sometimes, the circuits where some controllers are located may have short circuits and other situations. At this time, the grid isolation module can be used to isolate the problematic circuits from the circuits where other controllers are located, thereby ensuring the stability and safety of the vehicle system.

[0003] When selecting the specifications of the grid isolation module, it is usually difficult to meet the current demand in the vehicle circuit while ensuring that the cost of the grid isolation module is low enough. Summary of the invention

[0004] The embodiments of the present disclosure at least provide a method for recommending a power grid isolation module, a computer device, and a program product.

[0005] In a first aspect, an embodiment of the present disclosure provides a method for recommending a power grid isolation module, including:

[0006] Determine a vehicle power distribution system in which a power grid isolation module is to be deployed; the vehicle power distribution system includes a first interface for connecting a power battery in a vehicle, a second interface for connecting a main power module in a vehicle, a first power distribution unit for providing a first power supply circuit, and a second power distribution unit for providing a second power supply circuit; the first power supply circuit is used to supply power to a plurality of first loads, and the second power supply circuit is used to supply power to a plurality of second loads; the first power distribution unit is connected to the first interface and the second power distribution unit, and the second power distribution unit is connected to the first power distribution unit and the second interface; the power grid isolation module to be deployed is connected between the first power distribution unit and the second power distribution unit, and is used to isolate the first power supply circuit from the second power supply circuit;

[0007] Determine the current capacity value required for the grid isolation module to be deployed under different working conditions according to the load requirements corresponding to different working conditions;

[0008] According to the current capacity values ​​corresponding to the different working conditions, a target current capacity value matching the power grid isolation module is determined, and deployment recommendation information of the power grid isolation module is generated; the deployment recommendation information indicates specification information of the power grid isolation module matching the target current capacity value.

[0009] In an optional implementation manner, determining the target current capacity value matched by the grid isolation module according to the current capacity values ​​corresponding to the different operating conditions respectively includes:

[0010] From the current capacity values ​​corresponding to the different operating conditions, the highest value is selected as the target current capacity value.

[0011] In an optional implementation manner, selecting the highest value from the current capacity values ​​corresponding to the different operating conditions as the target current capacity value includes:

[0012] Determining at least one duration level corresponding to each operating condition based on the current durations corresponding to the different operating conditions;

[0013] For each duration level, the highest value is selected from a plurality of current capacity values ​​corresponding to each operating condition at the duration level as the target current capacity value.

[0014] In an optional implementation manner, the operating condition includes a battery fully powered operating condition; the load demand under the battery fully powered operating condition indicates that the power battery fully powers the second load;

[0015] The step of determining the current capacity value required for the grid isolation module to be deployed under different working conditions according to the load requirements corresponding to different working conditions includes:

[0016] For the battery fully powered working condition, the current capacity value required by the grid isolation module under the battery fully powered working condition is determined according to the instantaneous power supply current information of the second load when it is started.

[0017] In an optional implementation manner, the operating condition includes a plurality of vehicle test operating conditions; the load demand under the vehicle test operating condition indicates that the power battery partially supplies power to the second load;

[0018] The step of determining the current capacity value required for the grid isolation module to be deployed under different working conditions according to the load requirements corresponding to different working conditions includes:

[0019] Determining discharge current information of the power battery under the multiple vehicle test conditions, and determining maximum discharge current information in the discharge current information;

[0020] Based on the difference between the maximum discharge current information and the power supply current information of the first load, a current capacity value required by the grid isolation module under the vehicle test condition is determined.

[0021] In an optional implementation, the discharge current information includes theoretical discharge current information and / or test discharge current information.

[0022] In an optional embodiment, the operating condition includes a steady-state charging condition; the load demand under the steady-state charging condition indicates that the main power module fully supplies power to the first load and the power battery, and the main power module provides a steady-state charging current to the power battery; the current duration of the steady-state charging current is greater than a first preset duration;

[0023] The step of determining the current capacity value required for the grid isolation module to be deployed under different working conditions according to the load requirements corresponding to different working conditions includes:

[0024] According to the sum of the steady-state charging current information of the power battery and the power supply current information of the first load in the steady-state charging condition, the current capacity value required by the grid isolation module under the steady-state charging condition is determined.

[0025] In an optional embodiment, the operating condition includes a transient charging operating condition; the load demand under the transient charging operating condition indicates that the main power module fully supplies power to the first load and the power battery, and the main power module provides a transient charging current to the power battery; the current duration of the transient charging current is less than a second preset duration;

[0026] The step of determining the current capacity value required for the grid isolation module to be deployed under different working conditions according to the load requirements corresponding to different working conditions includes:

[0027] According to the sum of the transient charging current information of the power battery and the power supply current information of the first load in the transient charging condition, the current capacity value required by the grid isolation module under the transient charging condition is determined.

[0028] In a second aspect, an embodiment of the present disclosure further provides a computer device, comprising: a processor and a memory, wherein the memory stores machine-readable instructions executable by the processor, and when the computer device is running, the machine-readable instructions are executed by the processor to perform the steps of the above-mentioned first aspect, or any possible implementation of the first aspect.

[0029] In a third aspect, an embodiment of the present disclosure further provides a computer program product, including a computer program, which, when executed, implements the method described in the above-mentioned first aspect, or any possible implementation manner of the first aspect.

[0030] The grid isolation module recommendation method, computer device and program product provided in the embodiments of the present disclosure can determine the current capacity value required for the grid isolation module to be deployed in the vehicle power distribution system under different operating conditions according to the load requirements corresponding to different operating conditions, and then determine the target current capacity value matching the grid isolation module according to the current capacity value, thereby generating deployment recommendation information for the grid isolation module, indicating the specification information of the grid isolation module matching the target current capacity value, so that the deployed grid isolation module can not only meet the current requirements of various operating conditions, but also control the specifications of the grid isolation module, thereby achieving control of the cost of the grid isolation module. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following is a brief introduction to the drawings required for use in the embodiments. The drawings herein are incorporated into the specification and constitute a part of the specification. These drawings illustrate embodiments consistent with the present disclosure and are used together with the specification to illustrate the technical solutions of the present disclosure. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can also be obtained based on these drawings without creative work.

[0032] Figure 1 A schematic diagram of a vehicle power distribution system provided by some embodiments of the present disclosure is shown;

[0033] Figure 2 A flowchart showing a method for recommending a power grid isolation module provided in some embodiments of the present disclosure is shown;

[0034] Figure 3 A schematic diagram showing another vehicle power distribution system provided by some embodiments of the present disclosure is shown;

[0035] Figure 4 A schematic diagram of a computer device provided by some embodiments of the present disclosure is shown. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the present disclosure clearer, the technical scheme in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. The components of the embodiments of the present disclosure generally described and shown here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present disclosure is not intended to limit the scope of the present disclosure claimed for protection, but merely represents the selected embodiments of the present disclosure. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present disclosure.

[0037] Research has found that when selecting the specifications of a grid isolation module, it is usually difficult to both meet the current demand in the vehicle circuit and ensure that the cost of the grid isolation module is low enough.

[0038] Based on the above research, the present disclosure provides a grid isolation module recommendation method, computer equipment and program product, which can determine the current capacity value required for the grid isolation module to be deployed in the vehicle power distribution system under different working conditions according to the load demand corresponding to different working conditions, and then determine the target current capacity value matching the grid isolation module according to the current capacity value, thereby generating deployment recommendation information for the grid isolation module, indicating the specification information of the grid isolation module matching the target current capacity value, so that the deployed grid isolation module can not only meet the current requirements of various working conditions, but also control the specifications of the grid isolation module, thereby achieving the control of the cost of the grid isolation module.

[0039] The defects existing in the above solutions are the results obtained by the inventor after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed by the present disclosure for the above problems below should be the contributions made by the inventor to the present disclosure during the disclosure process.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] The term "and / or" herein only describes an association relationship, indicating that three relationships may exist. For example, A and / or B may represent the following three situations: A exists alone, A and B exist at the same time, and B exists alone. In addition, the term "at least one" herein represents any combination of at least two of any one or more of a plurality of. For example, including at least one of A, B, and C may represent including any one or more elements selected from the set consisting of A, B, and C.

[0042] To facilitate understanding of this embodiment, a method for recommending a power grid isolation module disclosed in the embodiment of the present disclosure is first introduced in detail. The execution subject of the method for recommending a power grid isolation module provided in the embodiment of the present disclosure is generally a computer device with certain computing capabilities, and the computer device includes, for example: a terminal device or a server or other processing device, and the terminal device can be a user equipment (User Equipment, UE), a mobile device, a user terminal, a terminal, a cellular phone, a cordless phone, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device, a computing device, a vehicle-mounted device, a wearable device, etc. In some possible implementations, the method for recommending a power grid isolation module can be implemented by a processor calling a computer-readable instruction stored in a memory.

[0043] The vehicle power distribution system mentioned in the embodiment of the present disclosure is introduced below.

[0044] See also Figure 1 , which is a schematic diagram of a vehicle power distribution system provided by an embodiment of the present disclosure. Figure 1 In the embodiment, the vehicle power distribution system includes a first interface 110 for connecting a power battery in the vehicle, a second interface 120 for connecting a main power module in the vehicle, a first distribution unit 130 for providing a first power supply circuit, and a second distribution unit 140 for providing a second power supply circuit; the first power supply circuit is used to supply power to a plurality of first loads, and the second power supply circuit is used to supply power to a plurality of second loads; the first distribution unit 130 connects the first interface 110 and the second distribution unit 140, and the second distribution unit 140 connects the first distribution unit 130 and the second interface 120, and a grid isolation module 150 to be deployed is connected between the first distribution unit 130 and the second distribution unit 140, and is used to isolate the first power supply circuit and the second power supply circuit.

[0045] Among them, the grid isolation module 150 is a device used to isolate different power supply circuits in the power system. Its main function is to ensure that when a power supply circuit fails, it will not affect other power supply circuits, thereby ensuring the stability and safety of the entire system. Specifically in the vehicle power distribution system, the grid isolation module can effectively manage and control power distribution, prevent fault propagation, and ensure the normal operation of each circuit. Power electronic devices (such as isolation transformers, relays, power semiconductor devices), sensors (such as current sensors, voltage sensors, temperature sensors), control circuits, protection devices, etc. can be deployed in the grid isolation module 150. Under the condition that the functional requirements of the grid isolation module 150 remain unchanged, the cost of the grid isolation module 150 is mainly reflected in the specifications of power semiconductor devices (such as insulated gate bipolar transistors, metal oxide semiconductor field effect transistors), which mainly affect the current capacity of the grid isolation module 150, which can include rated current and peak current.

[0046] The rated current may refer to the maximum continuous current that the grid isolation module 150 can handle; the peak current may refer to the maximum current that the grid isolation module 150 can handle in a short period of time.

[0047] In the above-mentioned vehicle power distribution system, the main power module can be a DCDC converter or a generator. The main power module can supply power to the second load under the second power supply circuit, and can also supply power to the first load under the first power supply circuit, and can also provide charging current to the power battery; the power battery can supply power to the first load under the first power supply circuit, and can also supply power to the second load under the second power supply circuit.

[0048] The first load may generally include key loads in vehicle operation, such as a brake control unit (BCU), a power steering control module (PSCM), a vehicle central processing unit (CCU), etc. In the event of a problem with the second power distribution circuit, the first load under the second power distribution circuit can still be powered by the power battery and operate normally through isolation by the grid isolation module 150.

[0049] like Figure 1 As shown, the first load may include PSCM1, BCU1, and CCU1.

[0050] The second load may include some other electronic control units, which may carry functions other than the key load.

[0051] The following describes the recommended method for the power grid isolation module provided by the embodiment of the present disclosure by taking the execution subject as a terminal device as an example.

[0052] See also Figure 2 FIG. 1 is a flowchart of a method for recommending a power grid isolation module according to an embodiment of the present disclosure, wherein the method includes steps S101 to S103, wherein:

[0053] S201. Determine a vehicle power distribution system in which a power grid isolation module is to be deployed; the vehicle power distribution system includes a first interface for connecting a power battery in a vehicle, a second interface for connecting a main power module in the vehicle, a first power distribution unit for providing a first power supply circuit, and a second power distribution unit for providing a second power supply circuit; the first power supply circuit is used to supply power to a plurality of first loads, and the second power supply circuit is used to supply power to a plurality of second loads; the first power distribution unit is connected to the first interface and the second power distribution unit, and the second power distribution unit is connected to the first power distribution unit and the second interface; the power grid isolation module to be deployed is connected between the first power distribution unit and the second power distribution unit, and is used to isolate the first power supply circuit and the second power supply circuit.

[0054] The above vehicle power distribution system can be Figure 1 The vehicle power distribution system shown in , in a possible implementation manner, the above vehicle power distribution system may also include some other possible power distribution units and interfaces.

[0055] For example, see Figure 3 As shown, another vehicle power distribution system provided by an embodiment of the present disclosure is shown. Figure 3 The vehicle power distribution system may include the above-mentioned first interface 110, the second interface 120, the first distribution unit 130, the second distribution unit 140, and the grid isolation module 150 to be deployed between the first distribution unit 130 and the second distribution unit 140, and may also include a third interface 310, a third distribution unit 320, and a grid isolation module 330 to be deployed connected between the third distribution unit 310 and the second distribution unit 140. The above-mentioned third distribution unit 310 is used to provide a third power supply circuit, and the third power supply circuit is used to power multiple third loads, and the third loads and the first loads can be redundant with each other. The above-mentioned third interface is used to connect a backup battery.

[0056] The vehicle power distribution system may further include a fourth power distribution unit 340, which is used to provide a fourth power supply circuit, which is used to supply power to a fourth load, and the fourth power supply circuit may include a first sub-circuit and a second sub-circuit, the second sub-circuit may be connected to the second power supply circuit, and the first sub-circuit may be connected to the first or third power supply circuit. The fourth load may be a logic control unit (LCU).

[0057] like Figure 3 As shown, the A interface of the fourth load LCU can be connected to the A interface of the first or second power supply circuit, the B interface of the fourth load LCU can be connected to the B interface of the second power supply circuit, the power battery or the backup battery can power the first sub-circuit, and the main power supply module can power the second sub-circuit. The first sub-circuit and the second sub-circuit can be redundant with each other.

[0058] S202. Determine the current capacity value required for the grid isolation module to be deployed under different working conditions according to the load requirements corresponding to different working conditions.

[0059] In this step, in order to reduce the cost of the grid isolation module, the current capacity value required by the grid isolation module can be determined. Generally, the various loads in the vehicle will not all run at the same time. Under different working conditions, the load requirements of the vehicle are different, and the current passing through the grid isolation module is also different. In order to make the grid isolation module competent for various working conditions, it is necessary to determine the current capacity value required by the grid isolation module under different working conditions.

[0060] Exemplarily, the above working condition may include a battery fully powered working condition, and the load demand under the battery fully powered working condition may indicate that the power battery fully powers the second load, and the current passing through the grid isolation module needs to be able to meet the demand of the second load. Usually, the instantaneous power supply current when the second load is started is higher, so the current capacity value required by the grid isolation module under the battery fully powered working condition can be determined based on the instantaneous power supply current information of the second load when it is started.

[0061] The above working conditions may also include a variety of vehicle test working conditions, which may be a variety of working conditions for testing the vehicle. For example, when conducting an electric balance test on a vehicle, it may include a working condition where the vehicle is steering in a specific harsh environment (such as 46°C); or a driving condition on a rainy night in summer (which may be divided into a long-term working condition and a short-term working condition), a driving condition on a snowy night in winter (which may also be divided into a long-term working condition and a short-term working condition), or various working conditions that occur during actual driving by the user.

[0062] Under vehicle test conditions, the vehicle is in an extreme state, and the current provided by the main power module may not be sufficient to meet the needs of the second load. The power battery is required to assist the main power module in powering the second load. Therefore, the load demand under the vehicle test condition indicates that the power battery partially powers the second load.

[0063] Under this operating condition, the maximum discharge current information of the power battery under the multiple vehicle test conditions is determined; then, based on the difference between the maximum discharge current information and the power supply current information of the first load, the current capacity value required by the grid isolation module under the vehicle test condition is determined.

[0064] Exemplarily, the difference between the maximum discharge current information of the power battery and the power supply current information of the first load may be directly used as the current capacity value required by the grid isolation module under the vehicle test condition.

[0065] The maximum discharge current information of the power battery may refer to the maximum value of the power battery discharge current information in a variety of vehicle test conditions, and the discharge current information may include theoretical discharge current information and / or test discharge current information. The theoretical discharge current information may be determined based on the current required by the vehicle electronic load in the above conditions; the test discharge current information may refer to the current actually output by the power battery during the test.

[0066] For example, the discharge current information of the power battery under the above-mentioned various vehicle test conditions can be as follows:

[0067] As shown in Table 1:

[0068] Working conditions Theoretical discharge current Test discharge current Discharge time 46℃ Steering test / ≤15A 5s Summer Rainy Night (Short) 216A 84A ＜2s Winter Snow Night (Short) 246A 17A ＜2s Actual driving conditions / 1.3A 3s

[0069] Table 1

[0070] The power supply current information of the first load may refer to the current value actually occupied by the first load under the vehicle test condition. For example, since the braking and turning of the vehicle are usually not performed at the same time, the power supply current information may include: the power supply current information with the largest power supply current in the braking and turning control units, the power supply current information corresponding to the CCU, and the power supply current information corresponding to the LCU (when the fourth power supply circuit is connected to B in the first power supply circuit).

[0071] Taking the above Table 1 as an example, when the maximum power supply current information in the braking and turning control unit is 60A, the power supply current information corresponding to the CCU is 13A, and the power supply current information corresponding to the LCU is 20A, if the LCU is connected to the above-mentioned first sub-circuit, the current capacity value can be 246A-(60A+13A+20A)=153A.

[0072] In a possible implementation, in the above-mentioned vehicle test condition, if the power battery partially powers the second load and is limited to emergency actions such as roadside parking, the second load that needs to be powered may be small, and the current capacity value may also be reduced according to actual conditions, such as reduced to half of normal operation.

[0073] If the LCU is connected to the second sub-circuit, the current capacity value may be 246A-(60A+13A)=173A.

[0074] The above-mentioned vehicle test conditions include a variety of scenarios, and a variety of scenarios can be selected according to actual needs, thereby reducing the amount of data calculation.

[0075] In a possible implementation manner, a certain margin may be added based on the difference between the maximum discharge current information of the power battery and the power supply current information of the first load to prevent the current capacity from being insufficient to meet actual demand.

[0076] The above-mentioned operating conditions may also include steady-state charging conditions. The load demand under the steady-state charging conditions may instruct the main power module to fully power the first load and the power battery, and the main power module provides a steady-state charging current for the power battery; the current duration of the steady-state charging current is greater than a first preset duration.

[0077] The first preset duration refers to the duration corresponding to continuous charging, which may be 5 minutes.

[0078] For example, under various steady-state charging conditions, braking, steering, LCU, CCU and steady-state charging current may be as shown in Table 2:

[0079]

[0080] Table 2

[0081] Among them, VDDM is the vehicle drive motor (VDDM) brake module, and BBM is the wire control brake module (Brake-by-Wire Module).

[0082] Under steady-state charging conditions, the main power module can supply power to the first load and the second load and charge the power battery. At this time, the main power module provides a steady-state charging current to the power battery and continuously charges the power battery for a long time.

[0083] Under this operating condition, the current capacity value required by the grid isolation module under the steady-state charging condition can be determined based on the sum of the steady-state charging current information of the power battery and the power supply current information of the first load in the steady-state charging condition.

[0084] Exemplarily, taking Table 2 as an example, when the first load includes wire-controlled steering, the current capacity value corresponding to the short-term steady-state charging condition can be 103A, and the current capacity value corresponding to the long-term steady-state charging condition can be 47A; when the first load does not include wire-controlled steering, the current capacity value corresponding to the short-term steady-state charging condition can be 153A, and the current capacity value corresponding to the long-term steady-state charging condition can be 47A.

[0085] The above-mentioned operating conditions may also include transient charging conditions, in which the load demand indicates that the main power module fully supplies power to the first load and the power battery, and the main power module provides a transient charging current to the power battery; the current duration of the transient charging current is less than a second preset duration.

[0086] The second preset time duration is the time duration during which the power battery maintains a high current at the moment of starting, such as 1 second.

[0087] Under the transient charging condition, the current capacity value required by the grid isolation module under the transient charging condition can be determined according to the sum of the transient charging current information of the power battery and the power supply current information of the first load under the transient charging condition.

[0088] Exemplarily, taking the power supply current information of the first load in Table 2 as an example, the current capacity value required by the grid isolation module under the transient charging condition may be 153A.

[0089] S203. Determine a target current capacity value that matches the power grid isolation module according to the current capacity values ​​corresponding to the different operating conditions, and generate deployment recommendation information for the power grid isolation module; the deployment recommendation information indicates specification information of the power grid isolation module that matches the target current capacity value.

[0090] In this step, the highest value can be screened out from the current capacity values ​​corresponding to different working conditions as the target current capacity value, so that the target current capacity value can cover various working conditions.

[0091] Since the target current capacity value may include a rated current value and a peak current value, at least one duration level corresponding to each operating condition may be determined based on the current duration corresponding to different operating conditions. The duration level may include short time and long time, or level 1, level 2, etc., or include a specific duration range. In one possible implementation, the types of the above-mentioned duration levels may be greater than two, and the specific number may be determined according to actual conditions. After obtaining the duration level, for each duration level, the highest value may be screened out from the multiple current capacity values ​​corresponding to each operating condition under the duration level as the target current capacity value. Exemplarily, based on the examples in the above embodiments, the current capacity values ​​of various operating conditions may be as shown in Table 3:

[0092]

[0093] Table 3

[0094] When the first load does not include wire-controlled steering, the short-time (<1s) target current capacity value can be 103A, and the long-time (>5min) target current capacity value can be 47A; if the first load includes wire-controlled steering, the short-time (<1s) target current capacity value can be 153A, and the long-time (>5min) target current capacity value can be 47A.

[0095] Furthermore, the grid isolation module recommendation method provided in the embodiment of the present disclosure can not only determine Figure 1 The recommended information of the grid isolation module 150 in the Figure 3 The recommended information of the power grid isolation module 330 is determined in a manner similar to the manner in which the recommended information of the power grid isolation module 150 is determined, and will not be described in detail herein.

[0096] The grid isolation module recommendation method provided in the embodiment of the present disclosure can determine the current capacity value required for the grid isolation module to be deployed in the vehicle power distribution system under different operating conditions according to the load demand corresponding to different operating conditions, and then determine the target current capacity value matching the grid isolation module according to the current capacity value, thereby generating deployment recommendation information for the grid isolation module, indicating the specification information of the grid isolation module matching the target current capacity value, so that the deployed grid isolation module can not only meet the current requirements of various operating conditions, but also control the specifications of the grid isolation module, thereby achieving control of the cost of the grid isolation module.

[0097] Those skilled in the art will appreciate that, in the above method of specific implementation, the order in which the steps are written does not imply a strict execution order and does not constitute any limitation on the implementation process. The specific execution order of the steps should be determined by their functions and possible internal logic.

[0098] Based on the same inventive concept, the embodiment of the present disclosure also provides a power grid isolation module recommendation device corresponding to the power grid isolation module recommendation method. Since the principle of solving the problem by the device in the embodiment of the present disclosure is similar to the above-mentioned power grid isolation module recommendation method in the embodiment of the present disclosure, the implementation of the device can refer to the implementation of the method, and the repeated parts will not be repeated.

[0099] The present disclosure also provides a computer device, such as Figure 4 FIG. 1 is a schematic diagram of a computer device structure provided in an embodiment of the present disclosure, including:

[0100] A processor 41 and a memory 42; the memory 42 stores machine-readable instructions executable by the processor 41, and the processor 41 is used to execute the machine-readable instructions stored in the memory 42. When the machine-readable instructions are executed by the processor 41, the processor 41 performs the following steps:

[0101] Determine a vehicle power distribution system in which a power grid isolation module is to be deployed; the vehicle power distribution system includes a first interface for connecting a power battery in a vehicle, a second interface for connecting a main power module in a vehicle, a first power distribution unit for providing a first power supply circuit, and a second power distribution unit for providing a second power supply circuit; the first power supply circuit is used to supply power to a plurality of first loads, and the second power supply circuit is used to supply power to a plurality of second loads; the first power distribution unit is connected to the first interface and the second power distribution unit, and the second power distribution unit is connected to the first power distribution unit and the second interface; the power grid isolation module to be deployed is connected between the first power distribution unit and the second power distribution unit, and is used to isolate the first power supply circuit from the second power supply circuit;

[0102] Determine the current capacity value required for the grid isolation module to be deployed under different working conditions according to the load requirements corresponding to different working conditions;

[0103] According to the current capacity values ​​corresponding to the different working conditions, a target current capacity value matching the power grid isolation module is determined, and deployment recommendation information of the power grid isolation module is generated; the deployment recommendation information indicates specification information of the power grid isolation module matching the target current capacity value.

[0104] In an optional implementation manner, in the instruction executed by the processor 41, determining the target current capacity value matched by the grid isolation module according to the current capacity values ​​corresponding to the different operating conditions respectively includes:

[0105] From the current capacity values ​​corresponding to the different operating conditions, the highest value is selected as the target current capacity value.

[0106] In an optional implementation manner, in the instruction executed by the processor 41, the step of selecting the highest value as the target current capacity value from the current capacity values ​​corresponding to the different operating conditions includes:

[0107] Determining at least one duration level corresponding to each operating condition based on the current durations corresponding to the different operating conditions;

[0108] For each duration level, the highest value is selected from a plurality of current capacity values ​​corresponding to each operating condition at the duration level as the target current capacity value.

[0109] In an optional implementation manner, in the instruction executed by the processor 41, the operating condition includes a battery fully powered operating condition; the load demand under the battery fully powered operating condition indicates that the power battery fully powers the second load;

[0110] The step of determining the current capacity value required for the grid isolation module to be deployed under different working conditions according to the load requirements corresponding to different working conditions includes:

[0111] For the battery fully powered working condition, the current capacity value required by the grid isolation module under the battery fully powered working condition is determined according to the instantaneous power supply current information of the second load when it is started.

[0112] In an optional implementation manner, in the instructions executed by the processor 41, the operating condition includes a plurality of vehicle test operating conditions; the load demand under the vehicle test operating condition indicates that the power battery partially supplies power to the second load;

[0113] The step of determining the current capacity value required for the grid isolation module to be deployed under different working conditions according to the load requirements corresponding to different working conditions includes:

[0114] Determining discharge current information of the power battery under the multiple vehicle test conditions, and determining maximum discharge current information in the discharge current information;

[0115] Based on the difference between the maximum discharge current information and the power supply current information of the first load, a current capacity value required by the grid isolation module under the vehicle test condition is determined.

[0116] In an optional implementation, in the instruction executed by the processor 41, the discharge current information includes theoretical discharge current information and / or test discharge current information.

[0117] In an optional embodiment, in the instruction executed by the processor 41, the operating condition includes a steady-state charging condition; the load demand under the steady-state charging condition indicates that the main power module fully supplies power to the first load and the power battery, and the main power module provides a steady-state charging current to the power battery; the current duration of the steady-state charging current is greater than a first preset duration;

[0118] The step of determining the current capacity value required for the grid isolation module to be deployed under different working conditions according to the load requirements corresponding to different working conditions includes:

[0119] According to the sum of the steady-state charging current information of the power battery and the power supply current information of the first load in the steady-state charging condition, the current capacity value required by the grid isolation module under the steady-state charging condition is determined.

[0120] In an optional implementation, in the instruction executed by the processor 41, the operating condition includes a transient charging condition; the load demand under the transient charging condition indicates that the main power module fully supplies power to the first load and the power battery, and the main power module provides a transient charging current to the power battery; the current duration of the transient charging current is less than a second preset duration;

[0121] The step of determining the current capacity value required for the grid isolation module to be deployed under different working conditions according to the load requirements corresponding to different working conditions includes:

[0122] According to the sum of the transient charging current information of the power battery and the power supply current information of the first load in the transient charging condition, the current capacity value required by the grid isolation module under the transient charging condition is determined.

[0123] The above-mentioned memory 42 includes internal memory 421 and external memory 422; the memory 421 here is also called internal memory, which is used to temporarily store the calculation data in the processor 41 and the data exchanged with the external memory 422 such as the hard disk. The processor 41 exchanges data with the external memory 422 through the internal memory 421.

[0124] The specific execution process of the above instructions can refer to the steps of the grid isolation module recommendation method described in the embodiment of the present disclosure, which will not be repeated here.

[0125] The embodiment of the present disclosure also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the power grid isolation module recommendation method described in the above method embodiment are executed. The storage medium can be a volatile or non-volatile computer-readable storage medium.

[0126] The embodiments of the present disclosure also provide a computer program product, which carries a program code. The instructions included in the program code can be used to execute the steps of the power grid isolation module recommendation method described in the above method embodiment. For details, please refer to the above method embodiment, which will not be repeated here.

[0127] The computer program product may be implemented in hardware, software or a combination thereof. In one optional embodiment, the computer program product is implemented as a computer storage medium. In another optional embodiment, the computer program product is implemented as a software product, such as a software development kit (SDK).

[0128] If the disclosed technical solution involves personal information, the product using the disclosed technical solution has clearly informed the personal information processing rules and obtained the individual's voluntary consent before processing the personal information. If the disclosed technical solution involves sensitive personal information, the product using the disclosed technical solution has obtained the individual's separate consent before processing the sensitive personal information, and at the same time meets the "explicit consent" requirement. For example, on personal information collection devices such as cameras, clear and prominent signs are set to inform that the personal information collection scope has been entered and personal information will be collected. If the individual voluntarily enters the collection scope, it is deemed that he or she agrees to the collection of his or her personal information; or on the device that processes personal information, when the personal information processing rules are notified by obvious signs / information, the individual's authorization is obtained through pop-up information or by asking the individual to upload his or her personal information; among them, the personal information processing rules may include information such as the personal information processor, the purpose of personal information processing, the processing method, and the type of personal information processed.

[0129] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, the specific working process of the system and device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. In the several embodiments provided in the present disclosure, it should be understood that the disclosed system, device and method can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of the device or unit can be electrical, mechanical or other forms.

[0130] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0131] In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0132] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a non-volatile computer-readable storage medium that is executable by a processor. Based on this understanding, the technical solution of the present disclosure, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0133] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present disclosure, which are used to illustrate the technical solutions of the present disclosure, rather than to limit them. The protection scope of the present disclosure is not limited thereto. Although the present disclosure is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed in the present disclosure, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure, and should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A method for recommending a power grid isolation module, characterized in that: include: Determine a vehicle power distribution system in which a power grid isolation module is to be deployed; the vehicle power distribution system includes a first interface for connecting a power battery in a vehicle, a second interface for connecting a main power module in a vehicle, a first power distribution unit for providing a first power supply circuit, and a second power distribution unit for providing a second power supply circuit; the first power supply circuit is used to supply power to a plurality of first loads, and the second power supply circuit is used to supply power to a plurality of second loads; the first power distribution unit is connected to the first interface and the second power distribution unit, and the second power distribution unit is connected to the first power distribution unit and the second interface; the power grid isolation module to be deployed is connected between the first power distribution unit and the second power distribution unit, and is used to isolate the first power supply circuit from the second power supply circuit; Determine the current capacity value required for the grid isolation module to be deployed under different working conditions according to the load requirements corresponding to different working conditions; According to the current capacity values ​​corresponding to the different working conditions, a target current capacity value matching the power grid isolation module is determined, and deployment recommendation information of the power grid isolation module is generated; the deployment recommendation information indicates specification information of the power grid isolation module matching the target current capacity value.

2. The method according to claim 1, characterized in that The determining, according to the current capacity values ​​corresponding to the different working conditions, a target current capacity value matched by the grid isolation module comprises: From the current capacity values ​​corresponding to the different operating conditions, the highest value is selected as the target current capacity value.

3. The method according to claim 2, characterized in that The step of selecting the highest value from the current capacity values ​​corresponding to the different operating conditions as the target current capacity value includes: Determining at least one duration level corresponding to each operating condition based on the current durations corresponding to the different operating conditions; For each duration level, the highest value is selected from a plurality of current capacity values ​​corresponding to each operating condition at the duration level as the target current capacity value.

4. The method according to claim 1, characterized in that The operating condition includes a battery fully powered operating condition; the load demand under the battery fully powered operating condition indicates that the power battery fully powers the second load; The step of determining the current capacity value required for the grid isolation module to be deployed under different working conditions according to the load requirements corresponding to different working conditions includes: For the battery fully powered working condition, the current capacity value required by the grid isolation module under the battery fully powered working condition is determined according to the instantaneous power supply current information of the second load when it is started.

5. The method according to claim 1, characterized in that The operating conditions include a plurality of vehicle test operating conditions; the load demand under the vehicle test operating condition indicates that the power battery partially supplies power to the second load; The step of determining the current capacity value required for the grid isolation module to be deployed under different working conditions according to the load requirements corresponding to different working conditions includes: Determining discharge current information of the power battery under the multiple vehicle test conditions, and determining maximum discharge current information in the discharge current information; Based on the difference between the maximum discharge current information and the power supply current information of the first load, a current capacity value required by the grid isolation module under the vehicle test condition is determined.

6. The method according to claim 5, characterized in that The discharge current information includes theoretical discharge current information and / or test discharge current information.

7. The method according to claim 1, characterized in that The operating condition includes a steady-state charging condition; the load demand under the steady-state charging condition indicates that the main power module fully supplies power to the first load and the power battery, and the main power module provides a steady-state charging current to the power battery; the current duration of the steady-state charging current is greater than a first preset duration; The step of determining the current capacity value required for the grid isolation module to be deployed under different working conditions according to the load requirements corresponding to different working conditions includes: According to the sum of the steady-state charging current information of the power battery and the power supply current information of the first load in the steady-state charging condition, the current capacity value required by the grid isolation module under the steady-state charging condition is determined.

8. The method according to claim 1, characterized in that: The operating condition includes a transient charging operating condition; the load demand under the transient charging operating condition indicates that the main power module fully supplies power to the first load and the power battery, and the main power module provides a transient charging current to the power battery; the current duration of the transient charging current is less than a second preset duration; The step of determining the current capacity value required for the grid isolation module to be deployed under different working conditions according to the load requirements corresponding to different working conditions includes: According to the sum of the transient charging current information of the power battery and the power supply current information of the first load in the transient charging condition, the current capacity value required by the grid isolation module under the transient charging condition is determined.

9. A computer device, characterized in that: include: A processor and a memory, wherein the memory stores machine-readable instructions executable by the processor, and when the computer device is running, the machine-readable instructions are executed by the processor to perform the steps of the power grid isolation module recommendation method as described in any one of claims 1 to 8.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed, the steps of the grid isolation module recommendation method according to any one of claims 1 to 8 are implemented.

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