Control method, device and equipment of vehicle-mounted electrical system and storage medium

Abstract

The invention discloses a control method, device and equipment of a vehicle-mounted electrical system and a storage medium, and belongs to the technical field of vehicle control. The control method of the vehicle-mounted electrical system comprises the steps that after a vehicle enters a dormant state, quiescent current in the vehicle-mounted electrical system of the vehicle is obtained according to the first duration of the dormant state; comparing the quiescent current with a set value, and detecting an abnormal current in the quiescent current according to a comparison result after comparison; and if the abnormal current meets the reset condition, executing a power supply circulation reset operation on a load circuit of load equipment corresponding to the abnormal current in the vehicle-mounted electrical system. When the abnormal current in the quiescent current meets the reset condition, the power supply circulation reset operation is executed, the working state of each load device in the vehicle-mounted electrical system can be monitored after the vehicle enters the dormant state, the storage battery of the vehicle is prevented from entering the power lack state, and the energy safety of the vehicle in the dormant state can be guaranteed.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and in particular to a control method, device, equipment and storage medium for a vehicle-mounted electrical system. Background Art

[0002] As vehicles become increasingly intelligent, they incorporate more and more electronic components, expanding the range of user-vehicle interaction scenarios. Consequently, the power consumption of onboard electrical systems in dormant states is increasing, including for remote control and welcome functions when the vehicle is parked or ignition is off.

[0003] In order to prevent the vehicle's battery from entering a low-power state due to the continuous power consumption of the on-board electrical system when the vehicle is in a dormant state, related technologies usually design and control the static current of each load device in the on-board electrical system during the design phase, that is, the current in each load device when the vehicle is in a dormant state, to reduce the possibility of the battery entering a low-power state and protect the battery.

[0004] However, since the static current of the vehicle may fluctuate when it is in a dormant state in actual application scenarios, the control focused on the design stage has a poor effect on protecting the battery. Summary of the Invention

[0005] The present application provides a control method, device, equipment, and storage medium for an on-board electrical system to solve technical problems existing in related technologies. Specifically, the present application includes the following technical solutions.

[0006] In a first aspect, the present application provides a method for controlling an on-board electrical system, the method comprising: after the vehicle enters a sleep state, obtaining a quiescent current in the on-board electrical system of the vehicle based on a first duration of the sleep state; comparing the quiescent current with a set value and detecting an abnormal current in the quiescent current based on a comparison result; if the abnormal current meets a reset condition, performing a power cycle reset operation on a load circuit of a load device corresponding to the abnormal current in the on-board electrical system.

[0007] In some possible embodiments, obtaining the static current in the on-board electrical system of the vehicle based on the first duration of the sleep state includes: determining the acquisition frequency of the static current based on the first duration of the sleep state; periodically acquiring the static current based on the acquisition frequency; wherein the acquisition frequency is negatively correlated with the first duration.

[0008] In some possible implementations, detecting the abnormal current in the quiescent current based on the comparison result includes: if the quiescent current exceeds the set value, determining the corresponding quiescent current as the abnormal current; or, if the quiescent current exceeds the set value and the difference between the quiescent current and the set value reaches a deviation threshold, determining the corresponding quiescent current as the abnormal current.

[0009] In some possible implementations, the reset condition is whether a second duration after the abnormal current is detected reaches a duration threshold.

[0010] In some possible implementations, the load device includes an abnormal load device, which is a device corresponding to the abnormal current in the load device that meets the reset condition; the quiescent current includes a first quiescent current obtained at a first acquisition moment and a second quiescent current obtained at a second acquisition moment, and the second acquisition moment is after the first acquisition moment; the method further includes: if there is no abnormal current that meets the reset condition in the first quiescent current, clearing the data of the first quiescent current before obtaining the second quiescent current; if there is an abnormal current that meets the reset condition in the first quiescent current, recording the cumulative number of abnormalities of the abnormal load device, and clearing the data of the first quiescent current before obtaining the second quiescent current; wherein the cumulative number of abnormalities indicates the total number of times that the abnormal current that meets the reset condition occurs in the abnormal load device.

[0011] In some possible implementations, the method further includes: if the value of the cumulative number of abnormalities continuously increasing is greater than a first specified threshold, cutting off the power supply circuit of the on-board electrical system and generating a warning message; or, if the cumulative number of abnormalities is greater than a second specified threshold, cutting off the power supply circuit of the on-board electrical system and generating a warning message; wherein, the warning message is used to prompt the abnormal working state of the abnormal load equipment, and the value of the second specified threshold is greater than the value of the first specified threshold.

[0012] In some possible implementations, the method further includes: clearing data corresponding to the static current after the vehicle exits the dormant state.

[0013] In a second aspect, the present application provides a control device for an on-board electrical system, the device comprising an acquisition module, a determination module and a control module; the acquisition module is configured to acquire the quiescent current in the on-board electrical system of the vehicle according to a first duration of the quiescent state after the vehicle enters a sleep state; the determination module is configured to compare the quiescent current with a set value and detect an abnormal current in the quiescent current based on the comparison result; the control module is configured to perform a power cycle reset operation on the load circuit of the load device corresponding to the abnormal current in the on-board electrical system if the abnormal current meets a reset condition.

[0014] In some possible embodiments, when the acquisition module acquires the static current in the on-board electrical system of the vehicle based on the first duration of the sleep state, it is configured to: determine the acquisition frequency of the static current based on the first duration of the sleep state; periodically acquire the static current based on the acquisition frequency; wherein the acquisition frequency is negatively correlated with the first duration.

[0015] In some possible embodiments, when the determination module detects the abnormal current in the quiescent current based on the comparison result after comparison, it is configured to: if the quiescent current exceeds the set value, determine the corresponding quiescent current as the abnormal current; or, if the quiescent current exceeds the set value and the difference between the quiescent current and the set value reaches a deviation threshold, determine the corresponding quiescent current as the abnormal current.

[0016] In some possible implementations, the reset condition is whether a second duration after the abnormal current is detected reaches a duration threshold.

[0017] In some possible embodiments, the load device includes an abnormal load device, which is a device corresponding to the abnormal current in the load device that meets the reset condition; the quiescent current includes a first quiescent current obtained at a first acquisition moment and a second quiescent current obtained at a second acquisition moment, and the second acquisition moment is after the first acquisition moment; the control module is further configured to: if there is no abnormal current that meets the reset condition in the first quiescent current, clear the data of the first quiescent current before obtaining the second quiescent current; if there is an abnormal current that meets the reset condition in the first quiescent current, record the cumulative number of abnormalities of the abnormal load device, and clear the data of the first quiescent current before obtaining the second quiescent current; wherein the cumulative number of abnormalities indicates the total number of times that the abnormal current that meets the reset condition occurs in the abnormal load device.

[0018] In some possible implementations, the control module is further configured to cut off the power supply circuit of the vehicle electrical system and generate a warning message if the value of the cumulative number of abnormalities continuously increasing is greater than a first specified threshold; or, if the cumulative number of abnormalities is greater than a second specified threshold, cut off the power supply circuit of the vehicle electrical system and generate a warning message; wherein, the warning message is used to prompt the abnormal working state of the abnormal load equipment, and the value of the second specified threshold is greater than the value of the first specified threshold.

[0019] In some possible implementations, the control module is further configured to clear the data corresponding to the static current after the vehicle exits the dormant state.

[0020] In a third aspect, the present application provides an electronic device for controlling an onboard electrical system, comprising: a memory storing at least one program instruction for controlling the onboard electrical system; and a processor, wherein when the program instruction is executed by the processor, the vehicle implements a method according to an aspect of the present application or any possible implementation of the aspect.

[0021] In a fourth aspect, the present application provides a computer program (product), which includes a computer program / instructions, and the computer program / instructions are executed by a processor to enable a vehicle to implement a method in any aspect or any possible implementation of the aspect of the present application.

[0022] In a fifth aspect, the present application provides a computer-readable storage medium on which program instructions for controlling a vehicle electrical system are stored. When the program instructions are executed by one or more processors, the vehicle implements a method in any aspect or any possible implementation of the aspect of the present application.

[0023] The beneficial effects of the technical solution provided by this application include at least:

[0024] The technical solution provided by this application restores the normal working state of the load equipment in the vehicle electrical system through a power cycle reset operation when the abnormal current in the quiescent current meets the reset condition. This not only allows for a timely response to the abnormal working state of the load equipment in the vehicle electrical system, preventing the battery in the vehicle from entering a low-power state due to the abnormal working state of the load equipment, thereby enhancing the protection effect of the battery and ensuring the safety of the battery power when the vehicle is in a dormant state, but also allows for the targeted setting of reset conditions based on the different situations of the load equipment, thereby improving the flexibility and applicability of the solution. In addition, by collecting the quiescent current in the vehicle electrical system based on the first duration of the vehicle entering the dormant state, it is possible to collect the quiescent current in a targeted manner based on the different characteristics of the quiescent current at different times after the vehicle enters the dormant state, which is more in line with the needs of actual application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] Figure 1 It is a schematic diagram of an implementation scenario provided by an embodiment of the present application;

[0027] Figure 2 This is a flow chart of a method for controlling a vehicle electrical system provided by an embodiment of the present application;

[0028] Figure 3 is a structural diagram of a control device for a vehicle electrical system provided in an embodiment of the present application;

[0029] Figure 4 It is a structural diagram of an electronic device for controlling a vehicle electrical system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0032] Figure 1 This is a schematic diagram of the implementation scenario provided by the embodiment of this application. Figure 1 The implementation scenario provided by the embodiment of the present application may include a vehicle, which is equipped with an on-board control unit 11 and a load device 12.

[0033] The load device 12 is, for example, any device in a vehicle that needs to consume electric energy, including but not limited to any device in an infotainment system, a safety system, a comfort system, a communication system, and a lighting system, which can be used for but is not limited to providing anti-theft, remote monitoring and interaction, key wake-up, and basic state monitoring of the vehicle when the vehicle is in a sleep state.

[0034] The vehicle-mounted control unit 11 can be communicatively connected to the plurality of load devices 12 in the vehicle in a wired or wireless manner, so that the vehicle-mounted control unit 11 can distribute the current of the battery in the vehicle to the plurality of load devices 12 in the vehicle and monitor and control the static current in the plurality of load devices 12 when the vehicle is in a sleep state. The static current is used to indicate the current in the load device 12 when the vehicle is in a sleep state.

[0035] Optionally, the vehicle-mounted control unit 11 is, for example, an IDU (intelligent distribution unit) or other device that can be used to distribute the current of the battery and monitor and control the static current of the plurality of load devices 12, and the present application does not make any limitation in this regard.

[0036] In some embodiments, an efuse is integrated in the IDU, and the IDU can distribute the current of the battery to the plurality of load devices 12 through the efuse and individually control the on-off of the load circuits of the plurality of load devices 12 through the efuse as needed.

[0037] Those skilled in the art should understand that the vehicle-mounted control unit 11 and the load device 12 described above are only examples, and other existing or future vehicle-mounted control units and load devices that can be applicable to the present application should also be included in the protection scope of the present application and are hereby incorporated by reference.

[0038] Figure 2 is a control method flowchart of the vehicle electrical system provided by the embodiments of the present application, which can be executed by, for example, Figure 1 the vehicle-mounted control unit 11 involved in the present application, and the present application does not make any limitation in this regard. Referring to Figure 2 The control method of the vehicle electrical system provided by the embodiments of the present application can include steps S210-S230.

[0039] In step S210, after the vehicle enters a sleep state, the static current in the vehicle electrical system of the vehicle is obtained according to a first duration of the sleep state.

[0040] For example, a vehicle's dormant state occurs when the vehicle is turned off, parked, or otherwise non-operating, and the vehicle's onboard electrical system enters a low-power mode, maintaining some basic vehicle functions to reduce energy consumption. Examples of basic functions maintained while the vehicle is in dormant state include, but are not limited to, anti-theft, remote monitoring and interaction, emergency calls, telematics, and basic vehicle status monitoring.

[0041] In some embodiments, before a vehicle enters a sleep state, a specific signal may be sent through the gateway to notify other controllers and / or modules in the vehicle to execute sleep-related processes and functions. In this case, a method for determining whether the vehicle is in a sleep state includes, for example, monitoring whether the gateway has sent a specific signal indicating that the vehicle is about to enter a sleep state.

[0042] The quiescent current in the vehicle's electrical system indicates the current drawn by load devices in the vehicle's electrical system to maintain some basic vehicle functions after the vehicle enters a dormant state. It should be noted that depending on the actual application scenario, the requirements for maintaining some basic functions after the vehicle enters a dormant state may vary, and the type and number of load devices in the vehicle's electrical system, as well as the quiescent current, may also vary. This application does not impose any restrictions in this regard.

[0043] Considering that in the early stage of the vehicle entering the dormant state, the on-board electrical system may not have fully entered a stable state, and some load devices will gradually shut down or enter the dormant state, resulting in the quiescent current in the on-board electrical system to change more frequently. In this case, it is necessary to collect the quiescent current in the on-board electrical system more frequently so that abnormal conditions in the on-board electrical system can be responded to quickly, prevent the battery from being quickly depleted, and avoid potential safety problems. Considering that in the later stage of the vehicle entering the dormant state, the load circuit of the load device in the on-board electrical system is relatively stable, in this case, the frequency of collecting the quiescent current can be reduced so that the battery power consumption can be further reduced, which is beneficial to protecting the battery.

[0044] In view of this, a method for obtaining a quiescent current in a vehicle's onboard electrical system based on a first duration of a sleep state, for example, includes: determining a frequency for obtaining the quiescent current based on the first duration of the sleep state; and periodically obtaining the quiescent current based on the frequency. The frequency is negatively correlated with the first duration.

[0045] For example, if the first duration of the sleep state does not reach the first sleep duration threshold, the quiescent current is periodically acquired at a first acquisition frequency; if the first duration of the sleep state reaches the first sleep duration threshold but does not reach the second sleep duration threshold, the quiescent current is acquired at a second acquisition frequency; if the first duration of the sleep state reaches the second sleep duration threshold, the quiescent current is periodically acquired at a third frequency. The first acquisition frequency, the second acquisition frequency, and the third acquisition frequency decrease in sequence.

[0046] In step S220 , the quiescent current is compared with a set value and an abnormal current in the quiescent current is detected according to the comparison result.

[0047] Optionally, the set value may be, for example, the maximum current allowed for each load device in the vehicle's electrical system after the vehicle enters a dormant state, and may be used to, but is not limited to, reflect the operating status of the load device. The maximum current allowed for each load device in the dormant state may be determined by the vehicle manufacturer based on the hardware and / or software performance of the vehicle's electrical system, as well as the vehicle's power consumption design and requirements. This application does not impose any limitations in this regard.

[0048] In some embodiments, detecting abnormal current in the quiescent current based on the comparison result includes determining the corresponding quiescent current as abnormal current if the quiescent current exceeds a set value. By directly comparing the quiescent current with the set value to determine the abnormal current, the response speed to abnormal current can be improved, which is suitable for scenarios with high sensitivity to abnormal current.

[0049] Alternatively, if the quiescent current exceeds the set value and the difference between the quiescent current and the set value reaches the deviation threshold, the corresponding quiescent current is determined to be an abnormal current. The value of the deviation threshold can be adjusted according to the actual application scenario, and this application does not impose any restrictions in this regard. Determining the abnormal current by the difference between the quiescent current and the set value can avoid false alarms caused by small fluctuations, enhance adaptability to the volatility of the quiescent current, and is suitable for scenarios with low sensitivity to abnormal currents. The value of the deviation threshold can be adjusted according to the actual application scenario, and this application does not impose any restrictions in this regard.

[0050] Step S230 : If the abnormal current satisfies the reset condition, a power cycle reset operation is performed on the load circuit of the load device corresponding to the abnormal current in the vehicle electrical system.

[0051] Exemplarily, the power cycle reset operation is used to indicate an operation of restoring the normal working state of the load device by disconnecting and reconnecting the power supply. When there is an abnormal current in the static current, the method provided by the embodiments of the present application can not only re-screen the abnormal current according to whether the abnormal current meets the reset condition, to avoid the subsequent power cycle reset operation triggered by the abnormal current that does not meet the reset condition, but also set different reset conditions for different load devices, so that adaptive adjustment can be made according to different situations of the load devices.

[0052] In some possible cases, the reset condition may be, for example, whether a second duration after the abnormal current is detected reaches a duration threshold. The value of the duration threshold can be adjusted according to actual application conditions, and the present application does not make any limitation in this aspect.

[0053] In this case, the duration threshold may, for example, include a plurality of duration thresholds corresponding to different types of load devices. For example, a first duration threshold can be set for a load device with low sensitivity to abnormal current, and a second duration threshold can be set for a load device with high sensitivity to abnormal current, and the value of the second duration threshold is less than the value of the first duration threshold. In the above method, by setting the first duration threshold and the second duration threshold according to the sensitivity of different load devices to abnormal current, the situation of the load device can be handled specifically. For the load device with high sensitivity to abnormal current, the power cycle reset operation can be triggered in a shorter time. For the load device with low sensitivity to abnormal current, a larger buffer space can be provided to avoid false triggering of the power cycle reset operation.

[0054] Considering that the current of the storage battery is limited when the vehicle is in the dormant state, in order to further reduce the energy consumption of the vehicle electrical system, unnecessary data can be cleaned up in time in the process of monitoring the static current of each load device. In view of this, in some embodiments, the static current includes a first static current obtained at a first acquisition time and a second static current obtained at a second acquisition time, the second acquisition time is after the first acquisition time, and the control method of the vehicle electrical system provided by the embodiments of the present application further includes: if there is no abnormal current meeting the reset condition in the first static current, emptying the data of the first static current before obtaining the second static current; and if there is an abnormal current meeting the reset condition in the first static current, recording a cumulative abnormal number of the abnormal load device, and emptying the data of the first static current before obtaining the second static current.

[0055] The abnormal load device is a device corresponding to the abnormal current meeting the reset condition in the load device, and the cumulative abnormal number indicates the total number of times of the abnormal current meeting the reset condition in the abnormal load device.

[0056] The first acquisition moment can be, for example, any one of a plurality of acquisition moments, and the second acquisition moment can be, for example, the next acquisition moment after the first acquisition moment, or any other acquisition moment after the first acquisition moment. This application does not impose any limitations in this regard. The above method can, on the one hand, clear non-essential data corresponding to quiescent currents that do not contain abnormal currents before the next acquisition moment, thereby reducing energy consumption of the vehicle electrical system. On the other hand, for load devices that have abnormal currents, the operating status of the load devices can be reflected based on the accumulated number of abnormalities, so that corresponding measures such as power cycle reset can be taken in a timely manner.

[0057] As previously mentioned, when the abnormal current meets the reset conditions, a power cycle can be performed to restore the normal operation of the load device corresponding to the abnormal current. Considering that in actual application scenarios, if a load device in the vehicle electrical system repeatedly experiences abnormal current that meets the reset conditions, continuing to use power cycles to restore the normal operation of the load device may be ineffective, thereby increasing the risk of the battery entering a low-power state.

[0058] In view of this, the control method of the vehicle electrical system provided in the embodiment of the present application may also include: if the value of the cumulative number of abnormalities continuously increasing is greater than a first specified threshold, cutting off the power supply circuit of the vehicle electrical system and generating an early warning message; or, if the cumulative number of abnormalities is greater than a second specified threshold, cutting off the power supply circuit of the vehicle electrical system and generating an early warning message; wherein the early warning message is used to prompt the abnormal working state of the abnormal load equipment, and the value of the second specified threshold is greater than the value of the first specified threshold.

[0059] In the above method, if the value of the cumulative number of abnormalities continuously increases to a value greater than the first specified threshold, or the cumulative number of abnormalities is greater than the second specified threshold, it means that the power cycle reset operation cannot effectively resolve the abnormal working state of the abnormal load device. In this case, in order to prevent the battery from entering a low-power state, the power supply circuit of the on-board electrical system can be cut off to ensure that the battery has sufficient power, and an early warning message is generated to indicate the abnormal working state of the abnormal load device to remind relevant personnel.

[0060] In some embodiments, the control method of the vehicle electrical system provided in the embodiments of the present application further includes: after the vehicle exits the sleep state, clearing the data corresponding to the static current to reduce data redundancy in the vehicle.

[0061] The technical solution provided by this application restores the normal working state of the load equipment in the vehicle electrical system through a power cycle reset operation when the abnormal current in the quiescent current meets the reset condition. This not only allows for a timely response to the abnormal working state of the load equipment in the vehicle electrical system, preventing the battery in the vehicle from entering a low-power state due to the abnormal working state of the load equipment, thereby enhancing the protection effect of the battery and ensuring the safety of the battery power when the vehicle is in a dormant state, but also allows for the targeted setting of reset conditions based on the different situations of the load equipment, thereby improving the flexibility and applicability of the solution. In addition, by collecting the quiescent current in the vehicle electrical system based on the first duration of the vehicle entering the dormant state, it is possible to collect the quiescent current in a targeted manner based on the different characteristics of the quiescent current at different times after the vehicle enters the dormant state, which is more in line with the needs of actual application scenarios.

[0062] In some other possible implementations, the present application also provides a control device for a vehicle electrical system. Figure 3 This is a schematic diagram of the structure of the control device of the vehicle electrical system provided in the embodiment of the present application, see Figure 3 The control device of the vehicle electrical system provided in the embodiment of the present application includes an acquisition module 310, a determination module 320 and a control module 330.

[0063] The acquisition module 310 is configured to acquire the static current in the vehicle's onboard electrical system according to a first duration of the sleep state after the vehicle enters the sleep state.

[0064] The determination module 320 is configured to compare the quiescent current with a set value and detect abnormal current in the quiescent current according to the comparison result.

[0065] The control module 330 is configured to perform a power cycle reset operation on a load circuit of a load device corresponding to the abnormal current in the vehicle electrical system if the abnormal current satisfies a reset condition.

[0066] In some embodiments, when acquiring the static current in the vehicle's onboard electrical system based on the first duration of the sleep state, the acquisition module 310 is configured to: determine the acquisition frequency of the static current based on the first duration of the sleep state; periodically acquire the static current based on the acquisition frequency; wherein the acquisition frequency is negatively correlated with the first duration.

[0067] In some embodiments, when the determination module 320 detects an abnormal current in the static current based on the comparison result after comparison, it is configured to: if the static current exceeds the set value, determine the corresponding static current as an abnormal current; or, if the static current exceeds the set value and the difference between the static current and the set value reaches a deviation threshold, determine the corresponding static current as an abnormal current.

[0068] In some embodiments, the reset condition is whether a second duration after the abnormal current is detected reaches a duration threshold.

[0069] In some embodiments, the load device includes an abnormal load device, which is a device corresponding to an abnormal current in the load device that meets the reset condition; the static current includes a first static current obtained at a first acquisition moment and a second static current obtained at a second acquisition moment, and the second acquisition moment is after the first acquisition moment; the control module 330 is further configured to: if there is no abnormal current that meets the reset condition in the first static current, clear the data of the first static current before obtaining the second static current; if there is an abnormal current that meets the reset condition in the first static current, record the cumulative number of abnormalities of the abnormal load device, and clear the data of the first static current before obtaining the second static current; wherein the cumulative number of abnormalities indicates the total number of times that abnormal current that meets the reset condition occurs in the abnormal load device.

[0070] In some embodiments, the control module 330 is further configured to cut off the power supply circuit of the vehicle electrical system and generate a warning message if the cumulative number of abnormalities continuously increases to a value greater than a first specified threshold; or, if the cumulative number of abnormalities is greater than a second specified threshold, cut off the power supply circuit of the vehicle electrical system and generate a warning message; wherein the warning message is used to prompt the abnormal working state of the abnormal load equipment, and the value of the second specified threshold is greater than the value of the first specified threshold.

[0071] In some embodiments, the control module 330 is further configured to clear the data corresponding to the static current after the vehicle exits the sleep state.

[0072] It should be understood that the control device of the vehicle electrical system provided in the above embodiments and the control method embodiment of the vehicle electrical system belong to the same concept, and their specific implementation process is detailed in the control method embodiment of the vehicle electrical system.

[0073] In some other possible implementations, the present application also provides an electronic device for controlling an on-board electrical system. Figure 4 This is a schematic diagram of the structure of an electronic device for controlling a vehicle electrical system provided in an embodiment of the present application. Figure 4 The electronic device for controlling the vehicle electrical system provided in the embodiment of the present application includes the following structure.

[0074] Memory 410, the memory 410 stores at least one program instruction for controlling the vehicle electrical system. Processor 420, when the program instruction is executed by the processor 420, the vehicle realizes the above combination Figure 2The method and steps of its multiple embodiments are described. Depending on the implementation, the processor 420 can be one or more types of processors such as a CPU (central processing unit), a GPU (graphics processing unit), or other general-purpose and / or special-purpose processors, including but not limited to a DSP (digital signal processor), an ASIC (application specific integrated circuit), an FPGA (field-programmable gate array), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc., and the number of such processors can be determined according to actual needs.

[0075] In some other possible implementations, the present application further provides a computer program (product), which includes a computer program / instruction, which is executed by a processor to enable the vehicle to achieve the above combination. Figure 2 The method and steps of various embodiments thereof are described.

[0076] In some other possible implementations, the present application further provides a computer-readable storage medium on which program instructions for controlling the vehicle electrical system are stored. When the program instructions are executed by one or more processors, the vehicle realizes the above combination. Figure 2 The described method and steps of multiple embodiments thereof. The computer-readable storage medium can be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination thereof. More specific examples of readable storage media (a non-exhaustive list) include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0077] It should also be noted that the terms "first," "second," etc. (if any) in the specification and claims of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the numbers used in this way are interchangeable where appropriate so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0078] The term "and / or" in the embodiments of the present application is merely a description of the association relationship between associated objects, indicating that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist at the same time, and B exists alone.

[0079] The above description is only for the purpose of facilitating the understanding of the technical solution of this application by those skilled in the art and is not intended to limit this application. Any modification, equivalent replacement, improvement, etc. made within the principles of this application shall be included in the scope of protection of this application.

Claims

1. A method for controlling a vehicle electrical system, characterized in that: The method comprises: After the vehicle enters a dormant state, obtaining a static current in an onboard electrical system of the vehicle according to a first duration of the dormant state; comparing the quiescent current with a set value and detecting an abnormal current in the quiescent current according to a comparison result; If the abnormal current satisfies a reset condition, a power cycle reset operation is performed on a load circuit of a load device corresponding to the abnormal current in the vehicle electrical system.

2. The method according to claim 1, characterized in that The acquiring of a static current in the onboard electrical system of the vehicle according to the first duration of the dormant state includes: determining a frequency for obtaining the static current according to a first duration of the sleep state; periodically acquiring the static current based on the acquisition frequency; The acquisition frequency is negatively correlated with the first duration.

3. The method according to claim 1, characterized in that The detecting an abnormal current in the static current according to the compared result includes: If the static current exceeds the set value, determining the corresponding static current as the abnormal current; Alternatively, if the quiescent current exceeds the set value and the difference between the quiescent current and the set value reaches a deviation threshold, the corresponding quiescent current is determined as the abnormal current.

4. The method according to claim 1, wherein The reset condition is whether the second duration after the abnormal current is detected reaches a duration threshold.

5. The method according to any one of claims 1 to 4, characterized in that The load device includes an abnormal load device, and the abnormal load device is a device corresponding to an abnormal current that meets the reset condition among the load devices; The quiescent current includes a first quiescent current acquired at a first acquisition moment and a second quiescent current acquired at a second acquisition moment, wherein the second acquisition moment is after the first acquisition moment; The method further comprises: If there is no abnormal current that meets the reset condition in the first static current, clearing data of the first static current before acquiring the second static current; If an abnormal current that meets the reset condition exists in the first quiescent current, recording the cumulative number of abnormalities of the abnormal load device, and clearing the data of the first quiescent current before obtaining the second quiescent current; The accumulated abnormality times indicates the total number of times abnormal currents that meet the reset condition occur in the abnormal load device.

6. The method according to claim 5, characterized in that The method further comprises: If the value of the cumulative number of abnormalities continuously increases to a value greater than a first specified threshold, cutting off the power supply circuit of the on-board electrical system and generating a warning message; Alternatively, if the accumulated number of abnormalities is greater than a second specified threshold, cutting off the power supply circuit of the onboard electrical system and generating a warning message; The early warning information is used to prompt the abnormal working state of the abnormal load device, and the value of the second specified threshold is greater than the value of the first specified threshold.

7. The method according to any one of claims 1 to 4, characterized in that The method further comprises: After the vehicle exits the dormant state, data corresponding to the static current is cleared.

8. A control device for a vehicle electrical system, characterized in that: The device includes an acquisition module, a determination module and a control module; The acquisition module is configured to acquire a static current in the onboard electrical system of the vehicle according to a first duration of the dormant state after the vehicle enters the dormant state; The determining module is configured to compare the quiescent current with a set value and detect an abnormal current in the quiescent current according to a comparison result; The control module is configured to perform a power cycle reset operation on a load circuit of a load device corresponding to the abnormal current in the vehicle electrical system if the abnormal current meets a reset condition.

9. An electronic device, characterized in that: include: A memory storing program instructions for controlling an onboard electrical system; as well as, The processor, when the program instructions are executed by the processor, causes the vehicle to implement the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores program instructions for controlling a vehicle electrical system. When the program instructions are executed by one or more processors, the vehicle implements the method according to any one of claims 1 to 7.

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