A vehicle electrical device power supply method, device, equipment and vehicle

Abstract

Embodiments of the present application disclose a vehicle electrical equipment power supply method, device, equipment and vehicle. The real-time working condition of a vehicle battery pack is detected, and the running condition of a vehicle engine is acquired when the real-time working condition of the vehicle battery pack meets a preset working condition. The trigger condition of a belt-driven starter generator is acquired according to the running condition of the vehicle engine, and the belt-driven starter generator is triggered to charge a DC converter according to the trigger condition. The trigger condition of the belt-driven starter generator is acquired according to the running condition of the vehicle engine, and the belt-driven starter generator is triggered to supply power to a vehicle generator bus according to the trigger condition. When the vehicle battery pack fails or works in a low-temperature environment, the belt-driven starter generator can be triggered to charge the DC converter and supply power to the vehicle generator bus according to different running conditions of the vehicle engine, so as to reduce the situation that the vehicle cannot run.

Description

Technical Field

[0001] This application relates to the field of power supply for DC converters and vehicle generator buses, specifically to a method, apparatus, equipment, and vehicle for power supply to vehicle electrical equipment. Background Technology

[0002] With increasingly stringent emission regulations, automakers worldwide are striving to extend the lifespan of internal combustion engines through various new technologies. Among these, 48-volt systems offer low cost and effectively reduce emissions. However, 48-volt P0 system vehicles incorporate a 48-volt BMS (Battery Management System) battery pack. In extremely cold winter environments, such as below -35°C, the BMS battery pack's charge / discharge capacity is zero. Furthermore, in the event of a battery malfunction, the BMS battery pack's relays lose their ability to close. In both cases, the vehicle's alternator bus lacks voltage buffering, rendering the vehicle immobile. Simultaneously, the DC / DC (Direct Current to Direct Current) converter cannot supply power to the vehicle's 12-volt terminals.

[0003] Therefore, how to reduce the occurrence of vehicles being unable to drive when the BMS battery pack fails is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, embodiments of this application provide a method, apparatus, device, and vehicle for supplying power to vehicle electrical equipment, so as to reduce the occurrence of situations where the vehicle cannot drive when the BMS battery pack fails.

[0005] To address the above problems, the technical solutions provided in this application are as follows:

[0006] A method for supplying power to vehicle electrical equipment, the method comprising:

[0007] Monitor the real-time operating status of the vehicle's battery pack;

[0008] In response to the real-time working conditions meeting preset operating conditions, the vehicle engine operating status is obtained;

[0009] The first trigger condition is obtained according to the vehicle engine operating status, and the belt-driven starter generator is triggered to charge the DC converter according to the first trigger condition, wherein the first trigger condition is the condition for triggering the belt-driven starter generator to charge the DC converter.

[0010] The corresponding second trigger condition is obtained based on the vehicle engine operating status, and the belt-driven starter generator is triggered to supply power to the vehicle generator bus based on the second trigger condition, wherein the second trigger condition is the condition for triggering the belt-driven starter generator to supply power to the vehicle generator bus.

[0011] In one possible implementation, obtaining a corresponding first triggering condition based on the vehicle engine's operating status, and triggering the belt-driven starter generator to charge the DC-DC converter based on the first triggering condition, includes:

[0012] In response to the vehicle starting and operating status meeting a first preset condition, the ignition switch status is obtained;

[0013] In response to the ignition switch being in a preset switch state, the belt-driven generator is triggered to charge the DC-DC converter so that the high-voltage terminal voltage of the DC-DC converter reaches the first target voltage.

[0014] In one possible implementation, obtaining a corresponding second triggering condition based on the vehicle engine's operating status, and triggering the belt-driven starter generator to supply power to the vehicle's generator bus based on the second triggering condition, includes:

[0015] In response to the ignition switch being in a preset switch state, after waiting for a first preset time, the operating state of the belt-driven starter generator, the self-test state of the belt-driven starter generator, and the high-voltage terminal voltage of the DC converter are obtained.

[0016] In response to the belt-driven starter generator meeting the preset operating state, the belt-driven starter generator having completed self-test, and the DC converter high-voltage terminal voltage having reached the second target voltage, the starter motor is triggered to start the vehicle engine.

[0017] After waiting for the second preset time, the vehicle engine operating status and the belt-driven starter generator working status are obtained again.

[0018] In response to the vehicle engine operating condition meeting a second preset condition and the belt-driven starter generator operating state meeting a preset operating state, the belt-driven starter generator is triggered to supply power to the vehicle generator bus.

[0019] In one possible implementation, obtaining a corresponding first triggering condition based on the vehicle engine's operating status, and triggering the belt-driven starter generator to charge the DC-DC converter based on the first triggering condition, includes:

[0020] In response to the vehicle engine operating condition meeting the second preset condition, the speed of the belt-driven starter generator, the operating status of the vehicle battery pack, and the actual voltage of the vehicle generator bus are obtained;

[0021] In response to the belt-driven starter generator rotating at a speed lower than a preset speed, the vehicle battery pack operating at a preset operating state, and the actual voltage of the vehicle generator bus being lower than a third target voltage, the belt-driven starter generator is triggered to charge the DC-DC converter so that the high-voltage terminal voltage of the DC-DC converter reaches the first target voltage.

[0022] In one possible implementation, obtaining a corresponding second triggering condition based on the vehicle engine's operating status, and triggering the belt-driven starter generator to supply power to the vehicle's generator bus based on the second triggering condition, includes:

[0023] In response to the vehicle engine operating condition meeting a second preset condition, the actual voltage of the vehicle generator bus is obtained;

[0024] In response to the actual voltage of the vehicle generator bus being greater than the fourth target voltage, the belt-driven starter generator is triggered to supply power to the vehicle generator bus.

[0025] In one possible implementation, the method further includes:

[0026] Calculate the deviation between the actual voltage of the vehicle generator bus and the fifth target voltage;

[0027] In response to the deviation value meeting the preset deviation range, the belt-driven generator is triggered to stop charging the DC converter and the DC converter is triggered to generate electricity.

[0028] In one possible implementation, the method further includes:

[0029] Identify the power generation status of the DC-DC converter;

[0030] In response to the DC-DC converter's power generation state meeting the preset power generation state, an activation completion reminder is output.

[0031] A power supply device for vehicle electrical equipment, the device comprising:

[0032] The detection unit is used to detect the real-time operating status of the vehicle's battery pack.

[0033] The first acquisition unit, in response to the real-time working conditions meeting preset working conditions, is used to acquire the vehicle engine operating status;

[0034] The second acquisition unit is used to acquire a corresponding first triggering condition based on the vehicle engine operating status, wherein the first triggering condition is the condition that triggers the belt-driven starter generator to charge the DC converter;

[0035] The third acquisition unit is used to acquire a corresponding second triggering condition based on the vehicle engine operating status, wherein the second triggering condition is the condition for triggering the belt-driven starter generator to supply power to the vehicle generator bus.

[0036] The first triggering unit is used to trigger the belt-driven starter generator to charge the DC converter according to the first triggering condition;

[0037] The second triggering unit is used to trigger the belt-driven starter generator to supply power to the vehicle generator bus according to the second triggering condition.

[0038] An electronic device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, it implements the vehicle electrical equipment power supply method as described above.

[0039] A vehicle, characterized in that the vehicle includes a control module, the control module being used to execute the vehicle electrical equipment power supply method as described above.

[0040] Compared with the prior art, this application has the following beneficial effects:

[0041] This application provides a method, apparatus, device, and vehicle for supplying power to vehicle electrical equipment. Specifically, when implementing the vehicle electrical equipment power supply method provided in this application embodiment, the real-time operating status of the vehicle battery pack can first be detected. Then, when the real-time operating status of the vehicle battery pack is a preset condition, the vehicle engine operating status is acquired. Next, a corresponding first trigger condition is acquired based on the vehicle engine operating status, and the belt-driven starter generator is triggered to charge the DC-DC converter based on the first trigger condition, wherein the first trigger condition is the condition for triggering the belt-driven starter generator to charge the DC-DC converter; a corresponding second trigger condition is acquired based on the vehicle engine operating status, and the belt-driven starter generator is triggered to supply power to the vehicle generator bus based on the second trigger condition, wherein the second trigger condition is the condition for triggering the belt-driven starter generator to supply power to the vehicle generator bus. When the vehicle battery pack malfunctions or operates in a low-temperature environment, this application can trigger the belt-driven starter generator to charge the DC-DC converter and supply power to the vehicle generator bus based on different operating conditions of the vehicle engine, thereby minimizing the occurrence of situations where the vehicle cannot move, while simultaneously ensuring normal power supply to the vehicle's 12-volt terminals. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in this embodiment or the prior art, the drawings used in the description of the embodiment or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 A schematic diagram illustrating an exemplary application scenario provided in this application embodiment;

[0044] Figure 2 A flowchart illustrating a method for supplying power to vehicle electrical equipment, as provided in this application embodiment;

[0045] Figure 3 This is a schematic diagram of a power supply device for vehicle electrical equipment provided in an embodiment of this application. Detailed Implementation

[0046] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0047] To facilitate understanding of the technical solutions provided in the embodiments of this application, the background technology involved in the embodiments of this application will be described below.

[0048] With increasingly stringent emission regulations, automakers worldwide are striving to extend the lifespan of internal combustion engines through various new technologies. Among these, 48-volt systems offer a cost-effective way to reduce emissions. 48-volt mild hybrid technology, a relatively new technology, recovers energy generated during braking, stores it in a 48-volt battery, and then uses it to power the engine and the high-performance 48-volt onboard electrical system. This can reduce fuel consumption by 10% while also decreasing carbon emissions. There are five types of 48-volt mild hybrid systems, ranging from P0 to P4. Among them, the 48-volt P0 system vehicles have added a 48-volt BMS (Battery Management System) battery pack. However, in extremely cold winter environments, such as below -35°C, the BMS battery pack has a zero charge / discharge capacity. When the battery malfunctions, the relays in the BMS battery pack also lose their ability to close. In both of these situations, the vehicle's alternator bus will not have voltage buffering, and the vehicle will not be able to drive. At the same time, the DC / DC (Direct Current to Direct Current) converter will also be unable to supply power to the vehicle's 12-volt terminals normally.

[0049] To address this issue, this application provides a method, apparatus, device, and vehicle for supplying power to vehicle electrical equipment. First, the real-time operating status of the vehicle battery pack is detected, and when the real-time operating status meets preset conditions, the vehicle engine operating status is acquired. Then, based on the vehicle engine operating status, corresponding triggering conditions for a belt-driven starter generator are acquired, and a corresponding first triggering condition is acquired. Based on the first triggering condition, the belt-driven starter generator is triggered to charge the DC-DC converter, where the first triggering condition is the condition for triggering the belt-driven starter generator to charge the DC-DC converter. Based on the vehicle engine operating status, a corresponding second triggering condition is acquired, and based on the second triggering condition, the belt-driven starter generator is triggered to supply power to the vehicle generator bus, where the second triggering condition is the condition for triggering the belt-driven starter generator to supply power to the vehicle generator bus. When the vehicle battery pack malfunctions or operates in low-temperature environments, this application can trigger the belt-driven starter generator to charge the DC-DC converter and supply power to the vehicle generator bus based on different vehicle engine operating conditions, minimizing the occurrence of vehicle malfunctions while ensuring normal power supply to the vehicle's 12-volt terminals.

[0050] To facilitate understanding of the vehicle electrical equipment power supply method provided in the embodiments of this application, the following is combined with... Figure 1 The example scenario is shown below. See also... Figure 1 This figure is a schematic diagram of an exemplary application scenario provided in the embodiments of this application.

[0051] First, the real-time operating status of the vehicle battery pack is monitored. The vehicle battery pack can be understood as multiple independent electrochemical units connected in series to form a battery bank. The real-time operating status of the battery pack indicates the current operating conditions of the vehicle. When the real-time operating status meets preset conditions, the vehicle engine operating status is acquired. These preset conditions can be understood as a battery pack malfunction or operation in a low-temperature environment. Next, based on the vehicle engine operating status, a corresponding first trigger condition is obtained, and the belt-driven starter generator is triggered to charge the DC-DC converter. Then, based on the vehicle engine operating status, a corresponding second trigger condition is obtained, and the belt-driven starter generator is triggered to supply power to the vehicle's generator bus. The first trigger condition can be understood as the condition that triggers the belt-driven starter generator to charge the DC-DC converter, and the second trigger condition can be understood as the condition that triggers the belt-driven starter generator to supply power to the vehicle's generator bus. When the vehicle battery pack malfunctions or operates in low-temperature environments, this application can trigger the belt-driven starter generator to charge the DC converter and supply power to the vehicle generator bus according to the different operating conditions of the vehicle engine, so as to minimize the occurrence of situations where the vehicle cannot move, while ensuring normal power supply to the vehicle's 12-volt terminals.

[0052] Those skilled in the art will understand that Figure 1 The schematic diagram shown is merely one example in which embodiments of this application can be implemented. The scope of application of the embodiments of this application is not limited by any aspect of this framework.

[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0054] See Figure 2 The figure is a flowchart of a method for supplying power to vehicle electrical equipment according to an embodiment of this application. Figure 2 As shown, the method for supplying power to the vehicle's electrical equipment may include steps S201-S204:

[0055] S201: Detect the real-time operating status of the vehicle's battery pack.

[0056] In order to enable the trigger belt to drive the starter generator to charge the DC converter and to drive the starter generator to supply power to the vehicle's generator bus, the vehicle's electrical equipment power supply system can first detect the real-time operating status of the vehicle's battery pack.

[0057] In one possible implementation, the vehicle battery pack can be, but is not limited to, multiple independent electrochemical units connected in series to form a battery pack.

[0058] In one possible implementation, the real-time operating status of the vehicle battery pack can be, but is not limited to, the vehicle itself – specifically, the conditions under which it is operating at that moment.

[0059] S202: In response to the real-time working conditions meeting the preset working conditions, obtain the vehicle engine operating status.

[0060] When the real-time operating conditions meet the preset conditions, it means that the vehicle's battery pack cannot provide a stable voltage to the vehicle's alternator bus for normal vehicle operation, nor can it charge the DC-DC converter to meet the vehicle's 12-volt power requirement. In this case, the starter generator needs to be driven by a belt to supply power to the alternator bus and charge the DC-DC converter so that the vehicle can operate normally and meet its 12-volt power requirement. However, the conditions for triggering the belt-driven starter generator to supply power to the alternator bus and charge the DC-DC converter vary depending on the engine's operating conditions. Therefore, it is necessary to obtain the vehicle's engine operating status when the real-time operating conditions meet the preset conditions.

[0061] In one possible implementation, the preset operating conditions could be, but are not limited to, a battery pack malfunction or operation in a low-temperature environment.

[0062] S203: Obtain a corresponding first trigger condition based on the vehicle engine operating status, and trigger the belt-driven starter generator to charge the DC converter based on the first trigger condition, wherein the first trigger condition is the condition for triggering the belt-driven starter generator to charge the DC converter.

[0063] Because the conditions for triggering the belt-driven starter generator to supply power to the vehicle's generator bus and charge the DC-DC converter differ depending on the engine's operating conditions, after obtaining the vehicle's engine operating status, it is necessary to obtain the corresponding triggering conditions to trigger the belt-driven starter generator to charge the DC-DC converter. Specifically, the first triggering condition is the condition that triggers the belt-driven starter generator to charge the DC-DC converter.

[0064] In one possible implementation, obtaining a corresponding first triggering condition based on the vehicle engine's operating status, and triggering the belt-driven starter generator to charge the DC converter based on the first triggering condition, includes: A1-A2:

[0065] A1: In response to the vehicle starting and operating status meeting the first preset condition, obtain the ignition switch status.

[0066] When the vehicle is in the first preset condition, the DC converter needs to be charged only when there is a potential power demand. To determine whether the DC converter may need power, the ignition switch status can be obtained when the vehicle is in the first preset condition.

[0067] In one possible implementation, the first preset condition refers to the vehicle engine being in a stopped state.

[0068] In one possible implementation, the ignition switch refers to the switch of the ignition system (usually requiring a key), which freely turns the main circuit of the ignition coil on or off, and is also applicable to other electrical circuits. The ignition switch, commonly known as the master switch, main ignition switch, or master key, is the main gate controlling the entire vehicle's electrical system. It comes in two types: plug-in and rotary.

[0069] A2: In response to the ignition switch being in a preset switch state, the belt-driven generator is triggered to charge the DC converter so that the high-voltage terminal voltage of the DC converter reaches the first target voltage.

[0070] When the ignition switch is in the preset switch state, it indicates that the DC-DC converter may require power. Therefore, when the ignition switch is in the preset switch state, the belt-driven starter generator is triggered to charge the DC-DC converter. Only when the high-voltage terminal voltage of the DC-DC converter reaches a certain value can it supply power to the vehicle's 12-volt electrical terminals. Therefore, the high-voltage terminal voltage of the DC-DC converter needs to be charged to at least the first target voltage before the belt-driven starter generator can charge it.

[0071] In one possible implementation, the preset switch state refers to the state where the ignition switch is in the state of requesting vehicle start-up.

[0072] In one possible implementation, the first target voltage can be, but is not limited to, 41 volts, 42 volts, 43 volts, etc. The first target voltage can be adjusted according to actual needs. This application does not specifically limit the first target voltage, as long as the DC-DC converter can supply power to the vehicle's 12-volt power supply terminal under this voltage.

[0073] In one possible implementation, obtaining a corresponding first triggering condition based on the vehicle engine's operating status, and triggering the belt-driven starter generator to charge the DC converter based on the first triggering condition, includes B1-B2:

[0074] B1: In response to the vehicle engine operating condition meeting the second preset condition, the speed of the belt-driven starter generator, the operating status of the vehicle battery pack, and the actual voltage of the vehicle generator bus are obtained.

[0075] When the vehicle is in the second preset condition, the DC converter may not need the belt-driven starter generator to charge it when it needs power. In order to determine that the DC converter needs power but other devices cannot charge it, the belt-driven starter generator needs to charge it. When the vehicle is in the second preset condition, the speed of the belt-driven starter generator, the working status of the vehicle battery pack, and the actual voltage of the vehicle generator bus can be obtained.

[0076] In one possible implementation, the second presupposition refers to the vehicle engine being in operation.

[0077] In one possible implementation, the ignition switch refers to the switch of the ignition system (usually requiring a key), which freely turns the main circuit of the ignition coil on or off, and is also applicable to other electrical circuits. The ignition switch, commonly known as the master switch, main ignition switch, or master key, is the main gate controlling the entire vehicle's electrical system. It comes in two types: plug-in and rotary.

[0078] In one possible implementation, the operating state of the vehicle battery pack includes either the vehicle battery pack being in an operating state or the vehicle battery pack being in a non-operating state.

[0079] In one possible implementation, the actual voltage of the vehicle's generator bus refers to the real-time voltage that can be measured on the current vehicle's generator bus.

[0080] B2: In response to the belt-driven starter generator speed being less than a preset speed, the vehicle battery pack operating state meeting a preset operating state, and the actual voltage of the vehicle generator bus being less than a third target voltage, the belt-driven starter generator is triggered to charge the DC converter so that the high-voltage terminal voltage of the DC converter reaches the first target voltage.

[0081] When the belt-driven starter generator rotates at a speed lower than a preset speed, the vehicle battery pack operates under a preset operating condition, and the actual voltage of the vehicle generator bus is lower than a third target voltage, it indicates that the power supply demand of the DC-DC converter cannot be met by other devices. In this case, the DC-DC converter can only be charged by the belt-driven starter generator. Therefore, when the belt-driven starter generator rotates at a speed lower than a preset speed, the vehicle battery pack operates under a preset operating condition, and the actual voltage of the vehicle generator bus is lower than a third target voltage, the belt-driven starter generator is triggered to charge the DC-DC converter. Only when the high-voltage terminal voltage of the DC-DC converter reaches a certain value can it supply power to the vehicle's 12-volt terminal. Therefore, the high-voltage terminal voltage of the DC-DC converter needs to be charged to at least the first target voltage before the belt-driven starter generator can charge the DC-DC converter.

[0082] In one possible implementation, the preset speed can be, but is not limited to, 1000 r / min. The preset speed can be adjusted according to actual needs. This application does not specifically limit the preset speed, as long as the belt-driven starter generator does not charge the DC converter at this speed.

[0083] In one possible implementation, the preset operating state refers to the state in which the BMS battery pack, i.e., the vehicle battery pack, is not working.

[0084] In one possible implementation, the third target voltage can be, but is not limited to, 44 ​​volts, 43 volts, etc. The third target voltage can be adjusted according to actual needs, and this application does not make specific limitations on the third target voltage.

[0085] In one possible implementation, the first target voltage can be, but is not limited to, 41 volts, 42 volts, 43 volts, etc. The first target voltage can be adjusted according to actual needs. This application does not specifically limit the first target voltage, as long as the DC-DC converter can supply power to the vehicle's 12-volt power supply terminal under this voltage.

[0086] S204: Obtain a corresponding second trigger condition based on the vehicle engine operating status, and trigger the belt-driven starter generator to supply power to the vehicle generator bus based on the second trigger condition, wherein the second trigger condition is the condition for triggering the belt-driven starter generator to supply power to the vehicle generator bus.

[0087] Because the conditions for triggering the belt-driven starter generator to supply power to the vehicle's generator bus vary depending on the engine's operating conditions, after obtaining the vehicle engine's operating status, it is necessary to obtain the corresponding triggering conditions to trigger the belt-driven starter generator to supply power to the vehicle's generator bus. Specifically, the second triggering condition is the condition that triggers the belt-driven starter generator to supply power to the vehicle's generator bus.

[0088] In one possible implementation, obtaining a corresponding second triggering condition based on the vehicle engine's operating status, and triggering the belt-driven starter generator to supply power to the vehicle's generator bus based on the second triggering condition, includes C1-C4:

[0089] C1: In response to the ignition switch being in a preset switch state, after waiting for a first preset time, acquire the working state of the belt-driven starter generator, acquire the self-test state of the belt-driven starter generator, and acquire the high-voltage terminal voltage of the DC converter.

[0090] When the ignition switch is in the preset switch state, it indicates that the vehicle alternator bus may require power. However, it cannot be determined at this time whether the vehicle alternator bus actually needs power. Only when the vehicle alternator is started by the starter motor will the vehicle alternator bus require a continuous and stable voltage. To confirm that the vehicle alternator bus does indeed need power, and that the belt-driven starter generator can supply power, the operating status of the belt-driven starter generator, its self-test status, and the high-voltage terminal voltage of the DC-DC converter can be obtained after waiting for a first preset time. Furthermore, to ensure that the belt-driven starter generator can continuously and safely supply power to the vehicle alternator bus, it needs to perform a self-test, which takes a certain amount of time to complete.

[0091] In one possible implementation, the first preset time can be, but is not limited to, 300 milliseconds. The first preset time can be adjusted according to actual needs. This application does not make a specific limitation on the first preset time. As long as the time is sufficient to ensure that the generator belt drives the generator to complete the self-test, it can be used as the first preset time.

[0092] In one possible implementation, the operating state of the belt-driven starter generator includes either a standby state or an operating state.

[0093] In one possible implementation, the self-check of the belt-driven starter generator refers to the automatic check of whether the components of the belt-driven starter generator are functioning properly.

[0094] C2: In response to the belt-driven starter generator meeting the preset operating state, the belt-driven starter generator having completed self-test, and the DC converter high-voltage terminal voltage having reached the second target voltage, the starter motor is triggered to start the vehicle engine.

[0095] When the belt-driven starter generator meets the preset operating conditions, the belt-driven starter generator has completed its self-test, and the high-voltage terminal voltage of the DC converter has reached the second target voltage, it means that the belt-driven starter generator can supply power to the vehicle's generator bus. At this time, the starter motor can be triggered to start the vehicle engine so that the vehicle's generator bus needs to be powered.

[0096] In one possible implementation, the second target voltage can be, but is not limited to, 35 volts, 36 volts, 37 volts, etc. The second target voltage can be adjusted according to actual needs. This application does not specifically limit the fourth target voltage.

[0097] In one possible implementation, the preset working state refers to the belt-driven starter generator being in standby mode.

[0098] In one possible implementation, the starter motor can be, but is not limited to, a 12-volt starter motor.

[0099] C3: After waiting for the second preset time, obtain the vehicle engine operating status and the belt-driven starter generator working status again.

[0100] To ensure that the vehicle engine has been started by the starter motor and that the belt-driven starter generator is not supplying power to the vehicle generator bus, it is necessary to wait for a certain period of time and then obtain the operating status of the vehicle engine and the working status of the belt-driven starter generator again. This is to ensure that the belt-driven starter generator is not supplying power to the vehicle generator bus while the vehicle engine has been started by the starter motor.

[0101] C4: In response to the vehicle engine operating condition meeting the second preset condition and the belt-driven starter generator operating condition meeting the preset operating condition, the belt-driven starter generator is triggered to supply power to the vehicle generator bus.

[0102] When the vehicle engine operating condition meets the second preset condition and the belt-driven starter generator operating condition meets the preset operating condition, it can be ensured that the belt-driven starter generator does not supply power to the vehicle generator bus while the vehicle engine has been started by the starter motor. At this time, the belt-driven starter generator can be triggered to supply power to the vehicle generator bus.

[0103] In one possible implementation, the second presupposition refers to the vehicle engine being in operation.

[0104] In one possible implementation, obtaining a corresponding second triggering condition based on the vehicle engine's operating status, and triggering the belt-driven starter generator to supply power to the vehicle's generator bus based on the second triggering condition, includes D1-D2:

[0105] D1: In response to the vehicle engine operating condition meeting the second preset condition, obtain the actual voltage of the vehicle generator bus.

[0106] When the vehicle is in the second preset condition, it indicates that the vehicle generator bus has a power supply requirement. However, it cannot be determined at this time whether the power demand of the vehicle generator bus has been met. Therefore, when the vehicle is in the second preset condition, the actual voltage of the vehicle generator bus can be obtained to determine whether the power demand of the vehicle generator bus has been met.

[0107] In one possible implementation, the second presupposition refers to the vehicle engine being in operation.

[0108] D2: In response to the actual voltage of the vehicle generator bus being less than the third target voltage but greater than the fourth target voltage, the belt-driven starter generator is triggered to supply power to the vehicle generator bus.

[0109] When the actual voltage of the vehicle generator bus is less than the third target voltage but greater than the fourth target voltage, it indicates that the power demand of the vehicle generator bus cannot be met. In this case, the belt-driven starter generator can be triggered to supply power to the vehicle generator bus.

[0110] In one possible implementation, the fourth target voltage can be, but is not limited to, 35 volts, 36 volts, 37 volts, etc. The fourth target voltage can be adjusted according to actual needs, and this application does not specifically limit the fourth target voltage.

[0111] In one possible implementation, the method further includes E1-E2:

[0112] E1: Calculate the deviation between the actual voltage of the vehicle generator bus and the fifth target voltage.

[0113] When the deviation between the actual voltage of the vehicle generator bus and the fifth target voltage is within a certain range, the power demand of the vehicle generator bus can be met. At this time, the DC converter needs to supply power to the 12-volt terminal of the vehicle to meet the user's power demand. Therefore, to determine whether the DC converter needs to be triggered to generate electricity, it is first necessary to calculate the deviation between the actual voltage of the vehicle generator bus and the fifth target voltage.

[0114] In one possible implementation, the fifth target voltage can be, but is not limited to, 47 volts, 48 ​​volts, or 49 volts. The fifth target voltage can be adjusted according to actual needs, and this application does not specifically limit the fifth target voltage.

[0115] E2: In response to the deviation value meeting the preset deviation range, the belt-driven generator is triggered to stop charging the DC converter and the DC converter is triggered to generate electricity.

[0116] When the deviation value meets the preset deviation range, it means that the DC converter needs to be triggered to generate electricity. At this time, the belt drive starter generator can be triggered to stop charging the DC converter and trigger the DC converter to generate electricity.

[0117] In one possible implementation, the preset deviation range can be, but is not limited to, ±3 volts. The preset deviation range can be adjusted according to actual needs. This application does not specifically limit the fifth target voltage.

[0118] In one possible implementation, the method further includes F1-F2:

[0119] F1: Identify the power generation status of the DC converter.

[0120] To remind users that the vehicle's 12-volt power supply is available, the first step is to identify the DC-DC converter's power generation status.

[0121] In one possible implementation, the power generation state of the DC-DC converter includes the DC-DC converter generating power or the DC-DC converter stopping power generation.

[0122] F2: In response to the DC converter's power generation state meeting the preset power generation state, an activation completion reminder is output.

[0123] When the DC-DC converter's power generation status meets the preset power generation status, it can output an activation completion reminder to notify the user that the vehicle's 12-volt power supply terminal is available.

[0124] In one possible implementation, the preset power generation state refers to the DC converter being generating electricity.

[0125] Based on the content of S201-S204, firstly, the real-time operating status of the vehicle battery pack is detected, and when the real-time operating status meets preset conditions, the vehicle engine operating status is acquired. Then, a corresponding first trigger condition is acquired based on the vehicle engine operating status, and the belt-driven starter generator is triggered to charge the DC-DC converter according to the first trigger condition, wherein the first trigger condition is the condition for triggering the belt-driven starter generator to charge the DC-DC converter; a corresponding second trigger condition is acquired based on the vehicle engine operating status, and the belt-driven starter generator is triggered to supply power to the vehicle generator bus according to the second trigger condition, wherein the second trigger condition is the condition for triggering the belt-driven starter generator to supply power to the vehicle generator bus. This application, when the vehicle battery pack malfunctions or operates in low-temperature environments, can trigger the belt-driven starter generator to charge the DC-DC converter and supply power to the vehicle generator bus according to different operating conditions of the vehicle engine, in order to minimize the occurrence of situations where the vehicle cannot move, while ensuring normal power supply to the vehicle's 12-volt terminals.

[0126] The above are some specific implementations of the vehicle electrical equipment power supply method provided in the embodiments of this application. Based on this, this application also provides a corresponding power supply device for vehicle electrical equipment. The device provided in the embodiments of this application will be described below from the perspective of functional modularization.

[0127] See Figure 3 This figure is a schematic diagram of the structure of a vehicle electrical equipment power supply device provided in an embodiment of this application. Figure 3 As shown, the power supply device for the vehicle's electrical equipment includes:

[0128] The detection unit 301 is used to detect the real-time operating status of the vehicle battery pack.

[0129] In one possible implementation, the vehicle battery pack can be, but is not limited to, multiple independent electrochemical units connected in series to form a battery pack.

[0130] In one possible implementation, the real-time operating status of the vehicle battery pack can be, but is not limited to, the vehicle itself – specifically, the conditions under which it is operating at that moment.

[0131] The first acquisition unit 302, in response to the real-time working conditions meeting preset conditions, is used to acquire the vehicle engine operating status.

[0132] In one possible implementation, the preset operating conditions could be, but are not limited to, a battery pack malfunction or operation in a low-temperature environment.

[0133] The second acquisition unit 303 is used to acquire a corresponding first triggering condition based on the vehicle engine operating status, wherein the first triggering condition is the condition for triggering the belt-driven starter generator to charge the DC converter.

[0134] The third acquisition unit 304 is used to acquire a corresponding second triggering condition based on the vehicle engine operating status, wherein the second triggering condition is the condition for triggering the belt-driven starter generator to supply power to the vehicle generator bus.

[0135] The first triggering unit 305 is used to trigger the belt-driven generator to charge the DC converter according to the first triggering condition.

[0136] The second triggering unit 306 is used to trigger the belt-driven starter generator to supply power to the vehicle generator bus according to the second triggering condition.

[0137] In some possible implementations, the device further includes:

[0138] The fourth acquisition unit, in response to the vehicle starting and operating status meeting the first preset condition, is used to acquire the ignition switch status.

[0139] In one possible implementation, the first preset condition refers to the vehicle engine being in a stopped state.

[0140] In one possible implementation, the ignition switch refers to the switch of the ignition system (usually requiring a key), which freely turns the main circuit of the ignition coil on or off, and is also applicable to other electrical circuits. The ignition switch, commonly known as the master switch, main ignition switch, or master key, is the main gate controlling the entire vehicle's electrical system. It comes in two types: plug-in and rotary.

[0141] In some possible implementations, the first triggering unit 305 is specifically used for:

[0142] The first triggering unit 305, in response to the ignition switch being in a preset switching state, is used to trigger the belt-driven starter generator to charge the DC converter, so that the high-voltage terminal voltage of the DC converter reaches the first target voltage.

[0143] In one possible implementation, the preset switch state refers to the state where the ignition switch is in the state of requesting vehicle start-up.

[0144] In one possible implementation, the first target voltage can be, but is not limited to, 41 volts, 42 volts, 43 volts, etc. The first target voltage can be adjusted according to actual needs. This application does not specifically limit the first target voltage, as long as the DC-DC converter can supply power to the vehicle's 12-volt power supply terminal under this voltage.

[0145] In some possible implementations, the device further includes:

[0146] The fifth acquisition unit, in response to the ignition switch being in a preset switch state, is used to acquire the working state of the belt-driven starter generator, the self-test state of the belt-driven starter generator, and the high-voltage terminal voltage of the DC converter after waiting for a first preset time.

[0147] In one possible implementation, the first preset time can be, but is not limited to, 300 milliseconds. The first preset time can be adjusted according to actual needs. This application does not make a specific limitation on the first preset time. As long as the time is sufficient to ensure that the generator belt drives the generator to complete the self-test, it can be used as the first preset time.

[0148] In one possible implementation, the operating state of the belt-driven starter generator includes either a standby state or an operating state.

[0149] In one possible implementation, the self-check of the belt-driven starter generator refers to the automatic check of whether the components of the belt-driven starter generator are functioning properly.

[0150] The third triggering unit, in response to the belt-driven starter generator meeting the preset operating state, the belt-driven starter generator having completed self-test, and the DC converter high-voltage terminal voltage having reached the second target voltage, is used to trigger the starter motor to start the vehicle engine.

[0151] In one possible implementation, the preset working state refers to the belt-driven starter generator being in standby mode.

[0152] In one possible implementation, the starter motor can be, but is not limited to, a 12-volt starter motor.

[0153] In one possible implementation, the second target voltage can be, but is not limited to, 35 volts, 36 volts, 37 volts, etc. The second target voltage can be adjusted according to actual needs. This application does not specifically limit the fourth target voltage.

[0154] The sixth acquisition unit is used to acquire the vehicle engine operating status and the belt-driven starter generator operating status again after waiting for a second preset time.

[0155] In some possible implementations, the second triggering unit 306 is specifically used for:

[0156] The second triggering unit 306, in response to the vehicle engine operating condition meeting a second preset condition and the belt-driven starter generator operating state meeting a preset operating state, is used to trigger the belt-driven starter generator to supply power to the vehicle generator bus.

[0157] In one possible implementation, the second presupposition refers to the vehicle engine being in operation.

[0158] In some possible implementations, the device further includes:

[0159] The seventh acquisition unit, in response to the vehicle engine operating condition meeting the second preset condition, is used to acquire the speed of the belt-driven starter generator, the operating status of the vehicle battery pack, and the actual voltage of the vehicle generator bus.

[0160] In one possible implementation, the second presupposition refers to the vehicle engine being in operation.

[0161] In one possible implementation, the ignition switch refers to the switch of the ignition system (usually requiring a key), which freely turns the main circuit of the ignition coil on or off, and is also applicable to other electrical circuits. The ignition switch, commonly known as the master switch, main ignition switch, or master key, is the main gate controlling the entire vehicle's electrical system. It comes in two types: plug-in and rotary.

[0162] In one possible implementation, the operating state of the vehicle battery pack includes either the vehicle battery pack being in an operating state or the vehicle battery pack being in a non-operating state.

[0163] In one possible implementation, the actual voltage of the vehicle's generator bus refers to the real-time voltage that can be measured on the current vehicle's generator bus.

[0164] In some possible implementations, the first triggering unit 305 is specifically used for:

[0165] The first trigger unit 305 is used to trigger the belt-driven starter generator to charge the DC converter in response to the following: the speed of the belt-driven starter generator is less than a preset speed; the working state of the vehicle battery pack meets a preset working state; and the actual voltage of the vehicle generator bus is less than a third target voltage. This is to make the high-voltage terminal voltage of the DC converter reach the first target voltage.

[0166] In one possible implementation, the preset speed can be, but is not limited to, 1000 r / min. The preset speed can be adjusted according to actual needs. This application does not specifically limit the preset speed, as long as the belt-driven starter generator does not charge the DC converter at this speed.

[0167] In one possible implementation, the preset operating state refers to the state in which the BMS battery pack, i.e., the vehicle battery pack, is not working.

[0168] In one possible implementation, the third target voltage can be, but is not limited to, 44 ​​volts, 43 volts, etc. The third target voltage can be adjusted according to actual needs, and this application does not make specific limitations on the third target voltage.

[0169] In one possible implementation, the first target voltage can be, but is not limited to, 41 volts, 42 volts, 43 volts, etc. The first target voltage can be adjusted according to actual needs. This application does not specifically limit the first target voltage, as long as the DC-DC converter can supply power to the vehicle's 12-volt power supply terminal under this voltage.

[0170] In some possible implementations, the device further includes:

[0171] The eighth acquisition unit, in response to the vehicle engine operating condition meeting the second preset condition, is used to acquire the actual voltage of the vehicle generator bus.

[0172] In one possible implementation, the second presupposition refers to the vehicle engine being in operation.

[0173] In some possible implementations, the second triggering unit 306 is specifically used for:

[0174] The second triggering unit 306 is used to trigger the belt-driven starter generator to supply power to the vehicle generator bus when the actual voltage of the vehicle generator bus is less than the third target voltage and greater than the fourth target voltage.

[0175] In one possible implementation, the fourth target voltage can be, but is not limited to, 35 volts, 36 volts, 37 volts, etc. The fourth target voltage can be adjusted according to actual needs, and this application does not specifically limit the fourth target voltage.

[0176] In some possible implementations, the device further includes:

[0177] The calculation unit is used to calculate the deviation between the actual voltage of the vehicle generator bus and the fifth target voltage.

[0178] In one possible implementation, the fifth target voltage can be, but is not limited to, 47 volts, 48 ​​volts, or 49 volts. The fifth target voltage can be adjusted according to actual needs, and this application does not specifically limit the fifth target voltage.

[0179] The fourth triggering unit, in response to the deviation value meeting the preset deviation range, is used to trigger the belt-driven generator to stop charging the DC converter and trigger the DC converter to generate electricity.

[0180] In one possible implementation, the preset deviation range can be, but is not limited to, ±3 volts. The preset deviation range can be adjusted according to actual needs. This application does not specifically limit the fifth target voltage.

[0181] In some possible implementations, the device further includes:

[0182] An identification unit is used to identify the power generation status of the DC-DC converter.

[0183] In one possible implementation, the power generation state of the DC-DC converter includes the DC-DC converter generating power or the DC-DC converter stopping power generation.

[0184] The output unit, in response to the DC-DC converter's power generation state satisfying a preset power generation state, outputs an activation completion reminder.

[0185] In one possible implementation, the preset power generation state refers to the DC converter being generating electricity.

[0186] In addition, this application embodiment also provides a vehicle electrical equipment power supply device, the device including a memory and a processor, the memory for storing programs or code, and the processor for running the programs or code stored in the memory to implement the above-described vehicle electrical equipment power supply method.

[0187] In addition, this application embodiment also provides a vehicle, characterized in that the vehicle includes a control module, the control module being used to execute the above-described vehicle electrical equipment power supply method.

[0188] This application embodiment provides a vehicle electrical equipment power supply device. After the detection unit 301 detects the real-time operating status of the vehicle battery pack, the first acquisition unit 302 acquires the vehicle engine operating status when the real-time operating status meets a preset operating condition. Then, the second acquisition unit 303 acquires a corresponding first trigger condition based on the vehicle engine operating status, wherein the first trigger condition is the condition for triggering the belt-driven starter generator to charge the DC converter; the third acquisition unit 304 acquires a corresponding second trigger condition based on the vehicle engine operating status, wherein the second trigger condition is the condition for triggering the belt-driven starter generator to supply power to the vehicle generator bus. Finally, the first trigger unit 305 triggers the belt-driven starter generator to charge the DC converter based on the first trigger condition; the second trigger unit 306 triggers the belt-driven starter generator to supply power to the vehicle generator bus based on the second trigger condition. When the vehicle battery pack malfunctions or operates in low-temperature environments, this application can trigger the belt-driven starter generator to charge the DC converter and supply power to the vehicle generator bus according to the different operating conditions of the vehicle engine, so as to minimize the occurrence of situations where the vehicle cannot move, while ensuring normal power supply to the vehicle's 12-volt terminals.

[0189] The foregoing provides a detailed description of a method, apparatus, device, and vehicle for supplying power to vehicle electrical equipment. The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

[0190] It should be understood that in this application, "at least one (item)" means one or more, and "more than" means two or more. "And / or" is used to describe the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0191] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0192] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein can be implemented directly by hardware, a software module executed by a processor, or a combination of both. The software module can be located in random access memory (RAM), main memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.

[0193] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for supplying power to vehicle electrical equipment, characterized in that, The method includes: Monitor the real-time operating status of the vehicle's battery pack; In response to the real-time working conditions meeting preset operating conditions, the vehicle engine operating status is obtained; The first trigger condition is obtained according to the vehicle engine operating status, and the belt-driven starter generator is triggered to charge the DC converter according to the first trigger condition, wherein the first trigger condition is the condition for triggering the belt-driven starter generator to charge the DC converter. The corresponding second trigger condition is obtained according to the vehicle engine operating status, and the belt-driven starter generator is triggered to supply power to the vehicle generator bus according to the second trigger condition, wherein the second trigger condition is the condition for triggering the belt-driven starter generator to supply power to the vehicle generator bus; The first triggering conditions include: when the vehicle engine operating condition reaches the first preset condition and the ignition switch is in the preset switch state, or when the vehicle engine operating condition reaches the second preset condition and the belt-driven starter generator speed is lower than the preset speed, the battery pack operating condition meets the preset operating condition, and the actual voltage of the vehicle generator bus is lower than the first set threshold, the belt-driven starter generator is triggered to charge the DC converter, so that the voltage of the high-voltage end of the DC converter reaches the target voltage. The second triggering conditions include: when the ignition switch is in a preset switch state and the belt-driven starter generator has been detected to be in a preset working state and completed its self-test after a predetermined time, and the voltage at the high-voltage end of the DC converter reaches the second target voltage, the starter motor is triggered to start the engine, and when the engine operating condition and the starter generator state meet the second preset condition and the preset working state, the belt-driven starter generator is triggered to supply power to the vehicle's generator bus; or, when the vehicle engine operating condition meets the second preset condition and the actual voltage of the vehicle's generator bus is greater than the second set threshold, the belt-driven starter generator is triggered to supply power to the vehicle's generator bus. The first set threshold is greater than the second set threshold.

2. The method according to claim 1, characterized in that, The step of obtaining a corresponding first triggering condition based on the vehicle engine operating status, and triggering the belt-driven starter generator to charge the DC converter based on the first triggering condition, includes: In response to the vehicle starting and operating status meeting a first preset condition, the ignition switch status is obtained; In response to the ignition switch being in a preset switch state, the belt-driven generator is triggered to charge the DC-DC converter so that the high-voltage terminal voltage of the DC-DC converter reaches the first target voltage.

3. The method according to claim 2, characterized in that, The step of obtaining a corresponding second triggering condition based on the vehicle engine operating status, and triggering the belt-driven starter generator to supply power to the vehicle generator bus based on the second triggering condition, includes: In response to the ignition switch being in a preset switch state, after waiting for a first preset time, the operating state of the belt-driven starter generator, the self-test state of the belt-driven starter generator, and the high-voltage terminal voltage of the DC converter are obtained. In response to the belt-driven starter generator meeting the preset operating state, the belt-driven starter generator having completed self-test, and the DC converter high-voltage terminal voltage having reached the second target voltage, the starter motor is triggered to start the vehicle engine. After waiting for the second preset time, the vehicle engine operating status and the belt-driven starter generator working status are obtained again. In response to the vehicle engine operating condition meeting a second preset condition and the belt-driven starter generator operating state meeting a preset operating state, the belt-driven starter generator is triggered to supply power to the vehicle generator bus.

4. The method according to claim 1, characterized in that, The step of obtaining a corresponding first triggering condition based on the vehicle engine operating status, and triggering the belt-driven starter generator to charge the DC converter based on the first triggering condition, includes: In response to the vehicle engine operating condition meeting the second preset condition, the speed of the belt-driven starter generator, the operating status of the vehicle battery pack, and the actual voltage of the vehicle generator bus are obtained; In response to the belt-driven starter generator rotating at a speed lower than a preset speed, the vehicle battery pack operating at a preset operating state, and the actual voltage of the vehicle generator bus being lower than a third target voltage, the belt-driven starter generator is triggered to charge the DC-DC converter so that the high-voltage terminal voltage of the DC-DC converter reaches the first target voltage.

5. The method according to claim 4, characterized in that, The step of obtaining a corresponding second triggering condition based on the vehicle engine operating status, and triggering the belt-driven starter generator to supply power to the vehicle generator bus based on the second triggering condition, includes: In response to the vehicle engine operating condition meeting a second preset condition, the actual voltage of the vehicle generator bus is obtained; In response to the actual voltage of the vehicle generator bus being greater than the fourth target voltage, the belt-driven starter generator is triggered to supply power to the vehicle generator bus.

6. The method according to claim 3 or 5, characterized in that, The method further includes: Calculate the deviation between the actual voltage of the vehicle generator bus and the fifth target voltage; In response to the deviation value meeting the preset deviation range, the belt-driven generator is triggered to stop charging the DC converter and the DC converter is triggered to generate electricity.

7. The method according to claim 6, characterized in that, The method further includes: Identify the power generation status of the DC-DC converter; In response to the DC-DC converter's power generation state meeting the preset power generation state, an activation completion reminder is output.

8. A power supply device for vehicle electrical equipment, characterized in that, The device includes: The detection unit is used to detect the real-time operating status of the vehicle's battery pack. The first acquisition unit, in response to the real-time working conditions meeting preset working conditions, is used to acquire the vehicle engine operating status; The second acquisition unit is used to acquire a corresponding first triggering condition based on the vehicle engine operating status, wherein the first triggering condition is the condition of triggering the starter generator to charge the DC converter by triggering the belt. The third acquisition unit is used to acquire a corresponding second triggering condition based on the vehicle engine operating status, wherein the second triggering condition is the condition for triggering the belt-driven starter generator to supply power to the vehicle generator bus. The first triggering unit is used to trigger the belt-driven starter generator to charge the DC converter according to the first triggering condition; The second triggering unit is used to trigger the belt-driven starter generator to supply power to the vehicle generator bus according to the second triggering condition; The first triggering conditions include: when the vehicle engine operating condition reaches the first preset condition and the ignition switch is in the preset switch state, or when the vehicle engine operating condition reaches the second preset condition and the belt-driven starter generator speed is lower than the preset speed, the battery pack operating condition meets the preset operating condition, and the actual voltage of the vehicle generator bus is lower than the first set threshold, the belt-driven starter generator is triggered to charge the DC converter, so that the voltage of the high-voltage end of the DC converter reaches the target voltage. The second triggering conditions include: when the ignition switch is in a preset switch state and the belt-driven starter generator has been detected to be in a preset working state and completed its self-test after a predetermined time, and the voltage at the high-voltage end of the DC converter reaches the second target voltage, the starter motor is triggered to start the engine, and when the engine operating condition and the starter generator state meet the second preset condition and the preset working state, the belt-driven starter generator is triggered to supply power to the vehicle's generator bus; or, when the vehicle engine operating condition meets the second preset condition and the actual voltage of the vehicle's generator bus is greater than the second set threshold, the belt-driven starter generator is triggered to supply power to the vehicle's generator bus. The first set threshold is greater than the second set threshold.

9. An electronic device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the vehicle electrical equipment power supply method as described in any one of claims 1-7.

10. A vehicle, characterized in that, The vehicle includes a control module for performing the vehicle electrical equipment power supply method as described in any one of claims 1-7.

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