Vehicle feed reason determination method and device, equipment and storage medium

Abstract

The invention relates to a vehicle feed reason determination method and device, equipment and a storage medium, and relates to the technical field of automobiles. The method comprises the steps that when it is determined that a vehicle is fed, running state information of the vehicle is acquired from a database; under the condition that the vehicle is in the power-on state, a first feed reason of the vehicle is determined based on the operation state information; and under the condition that the vehicle is in the power-off state, determining a second power feeding reason of the vehicle based on the operation state information. Therefore, when the vehicle is in the power-on state and the power-off state, the power feeding reason of the vehicle is determined based on the operation state information, and the technical problems that when the vehicle is powered on, the power feeding reason is checked through an engineer, long time cost needs to be consumed, manpower resources are wasted, and the after-sale cost is high are solved.

Description

Technical Field

[0001] The present invention relates to the field of automobile technology, and in particular to a method, device, equipment and storage medium for determining a vehicle power feeding cause. Background Art

[0002] As a green means of transportation, new energy vehicles offer significant advantages in environmental protection, energy conservation, and driving performance. New energy vehicles are increasingly developing in electrification, intelligence, and networking. Unlike traditional fuel vehicles, when new energy vehicles are in the OFF state (i.e., when the vehicle is powered off), a large number of controller modules still need to operate. Therefore, with the increase in intelligent functions, the power supply risk of new energy vehicles is gradually increasing, and the factors that cause power supply problems are becoming increasingly complex, making it dramatically more difficult to troubleshoot power supply problems. Currently, when a vehicle experiences a power supply problem, engineers need to check each vehicle component or function one by one to determine the cause of the power supply.

[0003] However, in the above method, it takes a long time for engineers to investigate the cause of the power supply, which wastes human resources and increases after-sales costs. As a result, when the vehicle is powered, determining the cause of the power supply is inefficient and costly. Summary of the Invention

[0004] The purpose of the present invention is to provide a method, device, equipment, and storage medium for determining the cause of vehicle power feeding, so as to solve the technical problem that when a vehicle is powered on, engineers need to investigate the cause of the power feeding, which takes a long time and wastes human resources, resulting in high after-sales costs. The technical solution of this application is as follows:

[0005] According to a first aspect of the present application, a method for determining a vehicle power feeding reason is provided, comprising: when determining vehicle power feeding, obtaining operating status information of the vehicle from a database, the operating status information including at least one of the following: power supply status, output voltage of a high-voltage battery, output voltage of a DC-DC converter DC-DC, a wake-up source of a controller, and a working status of the controller, the power supply status being any one of the following: power-on status and power-off status, the wake-up source of the controller being used to indicate a manner in which the controller is awakened; when the vehicle is in a powered-on state, determining a first power feeding reason of the vehicle based on the operating status information, the first power feeding reason being any one of the following: abnormal high-voltage battery output, wiring harness connection failure, insufficient remaining power of the high-voltage battery, and DC-DC failure; when the vehicle is in a powered-off state, determining a second power feeding reason of the vehicle based on the operating status information, the second power feeding reason being any one of the following: abnormal dark current of the controller, abnormal controller sleep, and abnormal controller wake-up.

[0006] According to the above technical means, the present application can obtain the operating status information of the vehicle when determining the vehicle power feeding, and determine the vehicle power feeding reason based on the operating status information when the vehicle is in the power-on state and the power-off state. That is, when the vehicle is in the power-on state, the vehicle needs to be powered by the high-voltage system, then the vehicle power feeding reason can be a high-voltage system failure, so it can be determined based on the operating status information what kind of high-voltage system failure has occurred in the vehicle; when the vehicle is in the power-off state, the vehicle needs to be powered by the non-high-voltage system, then the vehicle power feeding reason can be a non-high-voltage system failure, so it can be determined based on the operating status information what kind of non-high-voltage system failure has occurred in the vehicle. Thus, it avoids the technical problem in the prior art that when the vehicle is powered on, it takes a long time and cost for engineers to troubleshoot the power feeding reason, wastes human resources, and has high after-sales costs, thereby improving the efficiency of determining the vehicle power feeding reason and reducing after-sales costs.

[0007] In one possible embodiment, when the vehicle is in a powered-on state, the first power feeding reason of the vehicle is determined based on the operating status information, including: when the vehicle is in a powered-on state, determining whether the output voltage of the high-voltage battery is within a first preset voltage range; when it is determined that the output voltage of the high-voltage battery is not within the first preset voltage range, determining that the first power feeding reason of the vehicle is abnormal high-voltage battery output.

[0008] According to the above technical means, the present application can determine that the reason for the vehicle's power supply is abnormal high-voltage battery output when the vehicle is in the power-on state and the output voltage of the high-voltage battery is not within the first preset voltage range. That is, if the vehicle is in the power-on state and the output voltage of the high-voltage battery is abnormal, then the vehicle may have a fault code that prohibits the high-voltage battery from outputting voltage normally or the high-voltage battery itself has a fault, resulting in the high-voltage battery being unable to output voltage normally. This guides the staff to determine whether there is a fault code that prohibits the high-voltage battery from outputting voltage normally, and then, when there is a fault code that prohibits the high-voltage battery from outputting voltage normally, guide the staff to check the high-voltage components related to the fault code, or, if there is a fault in the high-voltage battery itself, guide the staff to check the high-voltage battery, so as to accurately determine the cause of the vehicle's power supply failure.

[0009] In one possible implementation, when the vehicle is in a powered-on state, based on the operating status information, the first power feeding cause of the vehicle is determined, including: when the vehicle is in a powered-on state and the output voltage of the high-voltage battery is within a first preset voltage range, determining whether the output voltage of the DC-DC is within a second preset voltage range; when it is determined that the output voltage of the DC-DC is within the second preset voltage range, determining that the first power feeding cause of the vehicle is a wiring harness connection failure.

[0010] Based on the above technical means, the present application can determine that the vehicle's power supply failure is caused by a wiring harness connection failure when the vehicle is powered on, the high-voltage battery's output voltage is within a first preset voltage range, and the DC-DC's output voltage is within a second preset voltage range. In other words, if the vehicle is powered on, the high-voltage battery's output voltage is normal, and the DC-DC's output voltage is normal, then the vehicle may have a wiring harness failure, such as a disconnection or a circuit breakage, that prevents the DC-DC from supplying power properly. This allows personnel to check whether the low-voltage wiring harness connecting the DC-DC to the vehicle is loose, allowing accurate identification of the cause of the vehicle's power supply failure.

[0011] In one possible embodiment, when the vehicle is in a powered-on state, the first power feeding reason of the vehicle is determined based on the operating status information, including: when the vehicle is in a powered-on state, the output voltage of the high-voltage battery is within a first preset voltage range, and the output voltage of the DC-DC is not within a second preset voltage range, determining whether the remaining power of the high-voltage battery is less than the preset power; when it is determined that the remaining power of the high-voltage battery is less than the preset power, determining that the first power feeding reason of the vehicle is insufficient remaining power of the high-voltage battery.

[0012] Based on the above technical means, the present application can determine that the vehicle's power feeding is caused by insufficient remaining power in the high-voltage battery when the vehicle is powered on, the output voltage of the high-voltage battery is within a first preset voltage range, the output voltage of the DC-DC is not within a second preset voltage range, and the remaining power of the high-voltage battery is less than a preset power. That is, if the vehicle is powered on, the output voltage of the high-voltage battery is normal, the output voltage of the DC-DC is abnormal, and the remaining power of the high-voltage battery is insufficient, then the abnormal output voltage of the DC-DC may be caused by insufficient remaining power in the high-voltage battery, which cannot provide sufficient power for the DC-DC. This can guide the staff to charge the high-voltage battery and solve the power feeding problem.

[0013] In one possible embodiment, when the vehicle is in a powered-on state, the first power feeding cause of the vehicle is determined based on the operating status information, including: when the vehicle is in a powered-on state, the output voltage of the high-voltage battery is within a first preset voltage range, the output voltage of the DC-DC is not within a second preset voltage range, and the remaining power of the high-voltage battery is greater than or equal to the preset power, determining that the first power feeding cause of the vehicle is a DC-DC failure.

[0014] Based on the above technical means, this application can determine that the vehicle's power supply failure is caused by a fault in the DC-DC itself, resulting in an abnormal DC-DC output voltage, when the vehicle is powered on, the high-voltage battery's output voltage is normal, the DC-DC output voltage is abnormal, and the high-voltage battery has sufficient remaining power. This guides personnel to inspect the DC-DC and accurately determine the cause of the vehicle's power supply failure.

[0015] In one possible implementation, when the vehicle is in a power-off state, the second power feeding reason of the vehicle is determined based on the operating status information, including: when the vehicle is in a power-off state, based on the wake-up source of the controller, determining whether the controller has an abnormal wake-up; when it is determined that the controller has an abnormal wake-up, determining that the second power feeding reason of the vehicle is a controller wake-up abnormality.

[0016] Based on the above technical means, this application can determine that the cause of the vehicle's power supply failure is a controller wakeup anomaly when the vehicle is powered off and the controller wakes up abnormally. That is, the controller wakes up abnormally while the vehicle is powered off, consuming battery power and causing the vehicle to power up. This guides personnel to identify the controller and function that caused the abnormal vehicle wakeup, accurately determining the cause of the vehicle's power supply failure.

[0017] In one possible implementation, when the vehicle is in a power-off state, the second power feeding reason of the vehicle is determined based on the operating status information, including: when the vehicle is in a power-off state, based on the working status of the controller, determining whether the controller is in a sleep state; when it is determined that the vehicle is not in a sleep state, determining that the second power feeding reason of the vehicle is a controller sleep abnormality.

[0018] Based on the above technical means, this application can determine that the cause of a vehicle's power supply failure is a controller sleep anomaly when the vehicle is powered off and not in sleep mode. That is, the vehicle is not in sleep mode when powered off, consuming battery power and causing the vehicle to power on. This guides personnel to identify the controller and function that caused the vehicle to not sleep, accurately determining the cause of the vehicle's power supply failure.

[0019] In one possible embodiment, when the vehicle is in a power-off state, the second power feeding cause of the vehicle is determined based on the operating status information, including: when the vehicle is in a power-off state, the vehicle does not have abnormal wake-up, and the vehicle is in a sleep state, determining that the second power feeding cause of the vehicle is an abnormal dark current of the controller.

[0020] Based on the above technical means, this application can determine that the cause of the vehicle's power supply failure is abnormal dark current in the controller when the vehicle is in a powered-off state, there is no abnormal vehicle wake-up, and the vehicle is in a dormant state. In other words, if the dark current of one or more controllers in the vehicle is abnormal, it will continue to consume battery power and cause the vehicle to power down. This guides personnel to investigate the dark current of each controller in the vehicle and accurately determine the cause of the vehicle's power supply failure.

[0021] According to the second aspect provided by the present application, a vehicle power feeding reason determination device is provided, and the vehicle power feeding reason determination device includes an acquisition module and a determination module; the acquisition module is used to obtain the vehicle's operating status information from a database when determining the vehicle power feeding, and the operating status information includes at least one of the following: power supply status, the output voltage of the high-voltage battery, the output voltage of the DC-DC converter DC-DC, the wake-up source of the controller, and the working status of the controller. The power supply status is any one of the following: power-on state and power-off state. The wake-up source of the controller is used to indicate the way in which the controller is awakened; the determination module is used to determine the first power feeding reason of the vehicle based on the operating status information when the vehicle is in the powered-on state, and the first power feeding reason is any one of the following: high-voltage battery output abnormality, wiring harness connection failure, insufficient remaining power of the high-voltage battery, and DC-DC failure; the determination module is also used to determine the second power feeding reason of the vehicle based on the operating status information when the vehicle is in the powered-off state, and the second power feeding reason is any one of the following: controller dark current abnormality, controller sleep abnormality, and controller wake-up abnormality.

[0022] In one possible embodiment, the determination module is further used to determine whether the output voltage of the high-voltage battery is within a first preset voltage range when the vehicle is in a powered-on state; the determination module is further used to determine that the first power feeding cause of the vehicle is abnormal high-voltage battery output when it is determined that the output voltage of the high-voltage battery is not within the first preset voltage range.

[0023] In one possible implementation, the determination module is further used to determine whether the output voltage of the DC-DC is within a second preset voltage range when the vehicle is in a powered-on state and the output voltage of the high-voltage battery is within a first preset voltage range; the determination module is further used to determine that the first power feeding cause of the vehicle is a wiring harness connection failure when it is determined that the output voltage of the DC-DC is within the second preset voltage range.

[0024] In one possible embodiment, the determination module is further used to determine whether the remaining power of the high-voltage battery is less than a preset power when the vehicle is in a powered-on state, the output voltage of the high-voltage battery is within a first preset voltage range, and the output voltage of the DC-DC is not within a second preset voltage range; the determination module is further used to determine that the first power feeding reason of the vehicle is insufficient remaining power of the high-voltage battery when it is determined that the remaining power of the high-voltage battery is less than the preset power.

[0025] In one possible embodiment, the determination module is further used to determine that the first power feeding cause of the vehicle is a DC-DC failure when the vehicle is in a powered-on state, the output voltage of the high-voltage battery is within a first preset voltage range, the output voltage of the DC-DC is not within a second preset voltage range, and the remaining power of the high-voltage battery is greater than or equal to a preset power.

[0026] In one possible implementation, the determination module is further configured to determine, when the vehicle is in a power-off state, whether the controller has been abnormally awakened based on the wake-up source of the controller; and the determination module is further configured to determine that the second power feeding cause of the vehicle is a controller wake-up abnormality when it is determined that the controller has been abnormally awakened.

[0027] In one possible implementation, the determination module is further used to determine whether the controller is in a sleep state based on the controller working state when the vehicle is in a power-off state; the determination module is further used to determine that the second power feeding cause of the vehicle is a controller sleep abnormality when it is determined that the vehicle is not in a sleep state.

[0028] In a possible implementation, the determination module is further configured to determine that the second power feeding cause of the vehicle is abnormal dark current of the controller when the vehicle is in a power-off state, the vehicle is not abnormally awakened, and the vehicle is in a dormant state.

[0029] According to the third aspect provided by the present application, an electronic device is provided, comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to execute instructions to implement the method of the above-mentioned first aspect and any possible implementation method thereof.

[0030] According to the fourth aspect provided by the present application, a computer-readable storage medium is provided. When the instructions in the computer-readable storage medium are executed by the processor of an electronic device, the electronic device is enabled to execute the method in the above-mentioned first aspect and any possible implementation method thereof.

[0031] According to a fifth aspect provided by the present application, a vehicle is provided, comprising: a vehicle power feeding reason determination device, configured to implement the method of the above-mentioned first aspect and any possible implementation manner thereof.

[0032] According to the sixth aspect provided by the present application, a computer program product is provided, which includes computer instructions. When the computer instructions are executed on an electronic device, the electronic device executes the method of the above-mentioned first aspect and any possible implementation method thereof.

[0033] Therefore, the above technical features of this application have the following beneficial effects:

[0034] (1) The vehicle's operating status information can be obtained when determining vehicle power supply, and the vehicle's power supply reason can be determined based on the operating status information when the vehicle is in the power-on state and the power-off state. That is, when the vehicle is in the power-on state, the vehicle needs to be powered by the high-voltage system. At this time, the vehicle's power supply reason can be a high-voltage system failure. Therefore, it can be determined based on the operating status information what kind of high-voltage system failure the vehicle has encountered; when the vehicle is in the power-off state, the vehicle needs to be powered by the non-high-voltage system. At this time, the vehicle's power supply reason can be a non-high-voltage system failure. Therefore, it can be determined based on the operating status information what kind of non-high-voltage system failure the vehicle has encountered. Thus, the technical problem in the prior art that engineers need to spend a long time and cost to troubleshoot the power supply reason when the vehicle is powered on, which wastes human resources and has high after-sales costs is avoided, thereby improving the efficiency of determining the vehicle's power supply reason and reducing after-sales costs.

[0035] (2) When the vehicle is powered on and the output voltage of the high-voltage battery is not within the first preset voltage range, it can be determined that the reason for the vehicle's power supply is abnormal high-voltage battery output. That is, if the vehicle is powered on and the output voltage of the high-voltage battery is abnormal, then the vehicle may have a fault code that prohibits the high-voltage battery from outputting voltage normally, or the high-voltage battery itself has a fault, resulting in the high-voltage battery being unable to output voltage normally. This guides the staff to determine whether there is a fault code that prohibits the high-voltage battery from outputting voltage normally, and then, if there is a fault code that prohibits the high-voltage battery from outputting voltage normally, guide the staff to check the high-voltage components related to the fault code, or, if there is a fault in the high-voltage battery itself, guide the staff to check the high-voltage battery, so as to accurately determine the cause of the vehicle's power supply failure.

[0036] (3) When the vehicle is powered on, the output voltage of the high-voltage battery is within a first preset voltage range, and the output voltage of the DC-DC is within a second preset voltage range, it can be determined that the cause of the vehicle's power supply is a wiring harness connection failure. That is, if the vehicle is powered on, the output voltage of the high-voltage battery is normal, and the output voltage of the DC-DC is normal, then the vehicle may have a wiring harness connection failure from the DC-DC output to the vehicle's low-voltage system, which is disconnected or broken, resulting in the DC-DC being unable to supply power normally. This guides staff to check whether the low-voltage wiring harness from the DC-DC output to the vehicle is loose, thereby accurately determining the cause of the vehicle's power supply failure.

[0037] (4) When the vehicle is powered on, the output voltage of the high-voltage battery is within the first preset voltage range, the output voltage of the DC-DC is not within the second preset voltage range, and the remaining power of the high-voltage battery is less than the preset power, it can be determined that the reason for the vehicle's power supply is insufficient remaining power of the high-voltage battery. That is, if the vehicle is powered on, the output voltage of the high-voltage battery is normal, the output voltage of the DC-DC is abnormal, and the remaining power of the high-voltage battery is insufficient, then the reason for the abnormal output voltage of the DC-DC may be insufficient remaining power of the high-voltage battery, which cannot provide sufficient power for the DC-DC. This can guide the staff to charge the high-voltage battery and solve the power supply problem.

[0038] (5) When the vehicle is powered on, the output voltage of the high-voltage battery is normal, the output voltage of the DC-DC is abnormal, and the remaining power of the high-voltage battery is sufficient, it can be determined that the cause of the vehicle's power supply failure is a fault in the DC-DC itself, resulting in abnormal output voltage of the DC-DC. This guides the staff to check the DC-DC and accurately determine the cause of the vehicle's power supply failure.

[0039] (6) When the vehicle is powered off and the controller wakes up abnormally, it can be determined that the cause of the vehicle's power supply is the abnormal controller wakeup. That is, when the vehicle is powered off, the controller wakes up abnormally, consuming battery power and causing the vehicle to power up. This guides staff to investigate the controller and function that caused the abnormal vehicle wakeup, and accurately determine the cause of the vehicle's power supply failure.

[0040] (7) When the vehicle is powered off and not in sleep mode, it can be determined that the cause of the vehicle's power supply failure is a controller sleep abnormality. That is, when the vehicle is powered off, the vehicle is not in sleep mode, consuming battery power, causing the vehicle to power on. This guides staff to investigate the controller and function that caused the vehicle to not sleep mode, and accurately determine the cause of the vehicle's power supply failure.

[0041] (8) When the vehicle is powered off, has not been awakened abnormally, and is in a dormant state, it can be determined that the cause of the vehicle's power supply failure is an abnormal dark current in the controller. That is, if the dark current of one or more controllers in the vehicle is abnormal, it will continue to consume battery power, causing the vehicle to power down. This will guide staff to check the dark current of each controller in the vehicle and accurately determine the cause of the vehicle's power supply failure.

[0042] It should be noted that the technical effects brought about by any implementation method in the second to sixth aspects can refer to the technical effects brought about by the corresponding implementation method in the first aspect, and will not be repeated here.

[0043] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application, and do not constitute an improper limitation on the present application.

[0045] Figure 1 is a structural diagram of a vehicle power feeding cause determination system according to an exemplary embodiment;

[0046] Figure 2 is a flow chart showing a method for determining a vehicle power feeding cause according to an exemplary embodiment;

[0047] Figure 3 is a flow chart showing another method for determining a vehicle power feeding reason according to an exemplary embodiment;

[0048] Figure 4 is a flow chart showing another method for determining a vehicle power feeding reason according to an exemplary embodiment;

[0049] Figure 5 is a flow chart showing another method for determining a vehicle power feeding reason according to an exemplary embodiment;

[0050] Figure 6 is a flow chart showing another method for determining a vehicle power feeding reason according to an exemplary embodiment;

[0051] Figure 7 is a flow chart showing another method for determining a vehicle power feeding reason according to an exemplary embodiment;

[0052] Figure 8 is a flow chart showing another method for determining a vehicle power feeding reason according to an exemplary embodiment;

[0053] Figure 9 is a flow chart showing another method for determining a vehicle power feeding reason according to an exemplary embodiment;

[0054] Figure 10 is a schematic diagram showing a flow chart of controlling battery charging according to an exemplary embodiment;

[0055] Figure 11 is a block diagram of a device for determining a vehicle power feeding reason according to an exemplary embodiment;

[0056] Figure 12 It is a block diagram of an electronic device according to an exemplary embodiment. DETAILED DESCRIPTION

[0057] The following describes the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art will readily appreciate the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the various details in this specification may be modified or altered based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are intended only to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0058] It should be noted that the illustrations provided in the following embodiments are merely schematic illustrations of the basic concept of the present invention. Therefore, the illustrations only show components related to the present invention and are not drawn according to the number, shape, and size of components in actual implementation. In actual implementation, the type, quantity, and proportion of each component may be changed arbitrarily, and the component layout may also be more complex.

[0059] With the urgent global trend of energy shortages and environmental pollution, there is a global call for the development of new energy and support for the growth of the new energy vehicle industry. As a green means of transportation, new energy electric vehicles offer significant advantages in terms of environmental protection, energy conservation, and driving performance. With the in-depth development of new energy vehicles in terms of electrification, intelligence, and connectivity, compared to traditional fuel vehicles, new energy vehicles still require a large number of controller modules to operate when in the OFF position. Consequently, the addition of intelligent features has led to a gradual increase in the risk of power supply failures in new energy vehicles. The factors causing power supply problems are becoming increasingly complex, making troubleshooting them significantly more difficult.

[0060] Currently, when a vehicle is powered on, a jumper can be performed. However, troubleshooting the cause of the vehicle's power supply requires the manufacturer's engineers to check each vehicle component or function one by one to determine the cause of the power supply. This significantly increases the time cost for customers and manufacturers, wastes human resources, and increases after-sales costs.

[0061] For ease of understanding, the vehicle power feeding reason determination method provided in this application is specifically introduced below with reference to the accompanying drawings.

[0062] A method for determining a vehicle power feeding cause provided in an embodiment of the present application may be applicable to a vehicle power feeding cause determination system. Figure 1 FIG. 1 is a structural diagram of a vehicle power feeding cause determination system according to an exemplary embodiment. Figure 1 As shown, the vehicle power feeding cause determination system 10 includes: a vehicle controller 11 and a big data monitoring platform 12.

[0063] Among them, the vehicle control unit (VCU) 11 is used to collect the vehicle's fault code and operating status information, and send the vehicle's fault code and operating status information to the database of the big data monitoring platform 12; the big data monitoring platform 12 is used to receive the vehicle's fault code and operating status information sent by the vehicle controller 11, parse the vehicle's fault code to determine whether the vehicle is powered on, obtain the vehicle's operating status information from the database when determining that the vehicle is powered on, determine the first power feeding reason of the vehicle based on the operating status information when the vehicle is in a powered-on state, and determine the second power feeding reason of the vehicle based on the operating status information when the vehicle is in a powered-off state, so as to determine the vehicle power feeding reason based on the vehicle controller 11 and the big data monitoring platform 12.

[0064] Figure 2 FIG. 1 is a flow chart showing a method for determining a vehicle power feeding cause according to an exemplary embodiment. Figure 2 As shown, the method for determining the vehicle power feeding cause includes the following steps:

[0065] S201. When determining vehicle power feeding, obtain vehicle operation status information from a database through a big data monitoring platform.

[0066] Among them, the operating status information includes at least one of the following: power status, the output voltage of the high-voltage battery (i.e., the power battery), the output voltage of the DC-DC converter DC-DC, the wake-up source of the controller, and the working status of the controller. The power status is any one of the following: power-on state and power-off state. The wake-up source of the controller is used to indicate the way in which the controller is awakened.

[0067] Optionally, the vehicle controller can collect vehicle data (i.e., fault codes and operating status information) in real time. This data can include fault codes, power status, high-voltage battery output voltage, DC-DC converter output voltage, controller wakeup source (i.e., network wakeup source), and the operating status of each component. Furthermore, the vehicle data can be sent to a database on a cloud-based big data platform (i.e., a big data monitoring platform) via a gateway.

[0068] According to preset judgment rules, the big data monitoring platform can classify, count, and push problems to vehicle data in the database. If the fault code in the vehicle data indicates that the vehicle's low-voltage battery is undervoltage, it can be determined that the vehicle has a power supply failure and the time when the vehicle power supply failure occurred can be determined. When determining the vehicle power supply, the big data monitoring platform backtracks the vehicle data and obtains the operating status information collected at the time of the vehicle power supply failure from the big data monitoring platform's database. Based on the operating status information collected at the time of the vehicle power supply failure, the cause of the vehicle power supply failure can be analyzed and identified.

[0069] S202: When the vehicle is powered on, determine a first power feeding reason of the vehicle through a big data monitoring platform based on the operating status information.

[0070] Among them, the first power feeding reason is any one of the following: abnormal high-voltage battery output, wiring harness connection failure, insufficient remaining power of the high-voltage battery, and DC-DC failure.

[0071] Optionally, when determining the vehicle power feeding, the power status of the vehicle collected at the time when the power feeding failure occurs in the vehicle can be used to determine whether the power status of the vehicle is in the ON position (i.e., the power-on state) through the big data monitoring platform. If the power status of the vehicle is in the ON position, the power feeding reason of the vehicle may be a high-voltage system failure (i.e., the first power feeding reason).

[0072] According to the current vehicle's high-voltage battery operating mode, high-voltage battery output voltage, DC-DC input voltage, DC-DC output voltage and fault code, high-voltage system faults can be divided into high-voltage battery output abnormality, DC-DC fault, wiring harness connection fault and other fault types.

[0073] In one possible implementation, if a vehicle's high-voltage system fails, the vehicle's high-voltage system will not function properly, and the vehicle's low-voltage system will not be powered by the on-board DC-DC, resulting in continuous consumption of the low-voltage battery's power and causing the vehicle to be powered. At this time, the high-voltage system failure judgment process can be carried out.

[0074] S203: When the vehicle is in a power-off state, determine a second power feeding reason of the vehicle through the big data monitoring platform based on the operating state information.

[0075] The second power feeding reason is any one of the following: abnormal dark current of the controller, abnormal sleep of the controller, and abnormal wake-up of the controller.

[0076] Optionally, when determining the vehicle power feeding, the power status of the vehicle collected at the time when the power feeding failure occurs in the vehicle can be used to determine whether the power status of the vehicle is in the ON position (i.e., power-on state) through the big data monitoring platform. If the power status of the vehicle is in the OFF position (i.e., power-off state), the reason for the power feeding of the vehicle may be a non-high-voltage system failure (i.e., the second power feeding reason).

[0077] Based on signals such as the vehicle's parking time, the high-voltage battery's state of charge (SOC), the charging gun's connection status, the emergency alarm function's status, the Bluetooth key's connection status, the smart key's connection status, and the anti-theft status, non-high-voltage system faults can be divided into multiple fault types, such as long-term parking, charging pile failure, double flash failure, and induction key failure.

[0078] The big data monitoring platform can be used to conduct preliminary screening of vehicle power supply failures, determine the cause of the power supply, and push the power supply cause to the after-sales terminal near the user. At the same time, various power supply problems of the vehicle are summarized and synchronized with the automobile manufacturer.

[0079] In one possible implementation, if a vehicle's non-high-voltage system fails, the cause may be that after the vehicle is powered off, an abnormality occurs in the vehicle network, causing the vehicle to wake up abnormally or not sleep, resulting in excessive dark current in the vehicle and excessive consumption of battery power, which in turn causes the vehicle to be powered off. At this time, the non-high-voltage system failure judgment process can be carried out.

[0080] By using the big data monitoring platform to push power supply reasons to after-sales terminals near the user, after-sales engineers can be guided to resolve vehicle faults. By synchronizing various power supply issues with the vehicle manufacturer through the big data monitoring platform, manufacturers can be guided to optimize, improve, and upgrade vehicle functions, enhance product quality, and thus improve the user experience.

[0081] Figure 3 FIG. 1 is a flow chart showing another method for determining a vehicle power feeding reason according to an exemplary embodiment. Figure 3 As shown, the method in step S202 above specifically includes the following steps:

[0082] S301. When the vehicle is powered on, determine through a big data monitoring platform whether the output voltage of the high-voltage battery is within a first preset voltage range.

[0083] Optionally, when the vehicle is powered on, it is possible to determine whether the high-voltage battery was operating normally before the vehicle power supply failure occurred (i.e., whether the output voltage of the high-voltage battery was within a first preset voltage range). If the output voltage of the high-voltage battery is within the first preset voltage range, it is possible to continue to determine whether the DC-DC is operating normally.

[0084] S302: When it is determined that the output voltage of the high-voltage battery is not within a first preset voltage range, determine, through the big data monitoring platform, that a first power feeding cause of the vehicle is abnormal output of the high-voltage battery.

[0085] Optionally, if the output voltage of the vehicle's high-voltage battery exceeds the normal operating voltage range of the high-voltage battery (i.e., the output voltage of the high-voltage battery is not within the first preset voltage range), the reason for the vehicle's power feeding may be the presence of a fault code that prohibits the high-voltage battery from outputting voltage normally or a fault in the high-voltage battery itself. Furthermore, it is possible to determine whether there is a fault code that prohibits the high-voltage battery from outputting voltage normally based on the fault code before the vehicle's power feeding fault occurs. If there is a fault code that prohibits the high-voltage battery from outputting voltage normally, check the high-voltage components related to the fault code; if there is no fault code that prohibits the high-voltage battery from outputting voltage normally, check whether there is a fault in the high-voltage battery itself to locate the cause of the vehicle's power feeding fault.

[0086] In one possible implementation, if the vehicle has a fault code that prohibits the high-voltage battery from outputting normal voltage or the high-voltage battery itself has a fault, the vehicle's high-voltage battery will not be able to output high voltage normally, resulting in the inability to power the vehicle's low-voltage system through DC-DC, which will lead to continuous consumption of the low-voltage battery's power and cause the vehicle to be powered off.

[0087] Exemplarily, the first preset voltage range may be any reasonable numerical range such as 200V to 500V, 250V to 600V, or 300V to 800V.

[0088] Figure 4 FIG. 1 is a flow chart showing another method for determining a vehicle power feeding reason according to an exemplary embodiment. Figure 4 As shown, the method in step S202 above specifically includes the following steps:

[0089] S401. When the vehicle is powered on and the output voltage of the high-voltage battery is within a first preset voltage range, determine through a big data monitoring platform whether the output voltage of the DC-DC is within a second preset voltage range.

[0090] Optionally, when the vehicle is powered on and the output voltage of the high-voltage battery is within the normal operating voltage range of the high-voltage battery, it can be determined whether the DC-DC is operating normally (i.e., whether the output voltage of the DC-DC is within a second preset voltage range). If the DC-DC output voltage is not within the second preset voltage range, it indicates that the DC-DC is operating abnormally, and further confirmation can be made as to whether the remaining charge of the high-voltage battery is insufficient. The second preset voltage range can be the normal operating voltage range of the DC-DC.

[0091] Exemplarily, the second preset voltage range may be any reasonable numerical range such as 200V to 400V, 450V to 750V, etc.

[0092] It should be noted that insufficient remaining power in the high-voltage battery or a DC-DC failure will cause the vehicle's DC-DC to operate abnormally.

[0093] In one possible implementation, if the working state of the vehicle's DC-DC is abnormal, the DC-DC will not be able to normally power the low-voltage system of the entire vehicle, which will lead to continuous consumption of the power of the low-voltage battery and cause vehicle power feeding.

[0094] S402: When it is determined that the output voltage of the DC-DC is within a second preset voltage range, determine, through the big data monitoring platform, that a first power feeding cause of the vehicle is a wiring harness connection failure.

[0095] Optionally, if the output voltage of the DC-DC is within the second preset voltage range, the fault cause may be that the low-voltage wiring harness connection from the DC-DC output to the vehicle low-voltage system is disconnected or broken (i.e., wiring harness connection failure).

[0096] Exemplarily, the vehicle low-voltage system may be a low-voltage battery or a fuse box.

[0097] In one possible implementation, if the low-voltage wiring harness connecting the vehicle's DC-DC output to the vehicle's low-voltage system becomes disconnected or broken, the DC-DC will not be able to properly power the vehicle's low-voltage system, which in turn will cause the low-voltage battery to continue to consume power, causing the vehicle to be overcharged. In this case, staff can be assigned to check whether the wiring harness is loose.

[0098] Figure 5 FIG. 1 is a flow chart showing another method for determining a vehicle power feeding reason according to an exemplary embodiment. Figure 5 As shown, the method in step S202 above specifically includes the following steps:

[0099] S501. When the vehicle is powered on, the output voltage of the high-voltage battery is within a first preset voltage range, and the output voltage of the DC-DC is not within a second preset voltage range, determine through a big data monitoring platform whether the remaining power of the high-voltage battery is less than a preset power.

[0100] Optionally, when the vehicle is powered on, the output voltage of the high-voltage battery is within a first preset voltage range, and the output voltage of the DC-DC is not within a second preset voltage range, it may be determined first whether the remaining power of the high-voltage battery is sufficient (i.e., whether the remaining power of the high-voltage battery is less than a preset power level). The preset power level may be a battery power level that meets the operating requirements of the DC-DC.

[0101] For example, the preset power level may be any reasonable value such as 10%, 15%, or 20%.

[0102] S502: When it is determined that the remaining power of the high-voltage battery is less than a preset power, determine, through the big data monitoring platform, that a first power feeding reason of the vehicle is insufficient remaining power of the high-voltage battery.

[0103] Alternatively, if the remaining power of the high-voltage battery is less than a preset power level, the reason for the power feeding of the vehicle may be that the remaining power of the high-voltage battery is insufficient.

[0104] In one possible implementation, if the remaining charge of the vehicle's high-voltage battery is too low, the DC-DC converter will not function properly and will not be able to properly power the vehicle's low-voltage system. This will cause the low-voltage battery to continue to consume power, causing the vehicle to be overcharged. In this case, staff will need to be arranged to charge the vehicle's high-voltage battery.

[0105] Figure 6 FIG. 1 is a flow chart showing another method for determining a vehicle power feeding reason according to an exemplary embodiment. Figure 6 As shown, the method in step S202 above specifically includes the following steps:

[0106] S601. When the vehicle is powered on, the output voltage of the high-voltage battery is within a first preset voltage range, the output voltage of the DC-DC is not within a second preset voltage range, and the remaining power of the high-voltage battery is greater than or equal to the preset power, determine through the big data monitoring platform that the first power feeding cause of the vehicle is a DC-DC failure.

[0107] Optionally, when the vehicle is powered on, the output voltage of the high-voltage battery is within a first preset voltage range, the output voltage of the DC-DC is not within a second preset voltage range, and the remaining power of the high-voltage battery is greater than or equal to the preset power, the reason for the vehicle's power feeding may be that the DC-DC itself is operating abnormally (i.e., a DC-DC failure).

[0108] In one possible implementation, if the vehicle's DC-DC system is malfunctioning, it will be unable to properly power the vehicle's low-voltage system, leading to continuous consumption of the low-voltage battery and causing the vehicle to be overcharged. In this case, it is necessary to arrange for personnel to inspect the DC-DC system.

[0109] Figure 7 FIG. 1 is a flow chart showing another method for determining a vehicle power feeding reason according to an exemplary embodiment. Figure 7 As shown, the method in step S203 above specifically includes the following steps:

[0110] S701: When the vehicle is in a powered-off state, determine whether the controller wakes up abnormally based on the wake-up source of the controller through a big data monitoring platform.

[0111] Optionally, when the vehicle is in a power-off state, it may be determined whether the controller is abnormally awakened based on the wakeup sources of multiple controllers in the vehicle before the vehicle is powered on.

[0112] S702: When it is determined that the controller is abnormally awakened, determine through the big data monitoring platform that the second power feeding cause of the vehicle is abnormal controller awakening.

[0113] Optionally, if it is determined that the controller has abnormal wakeup (i.e., abnormal network wakeup), the reason for the vehicle's power supply can be determined to be abnormal controller wakeup. Further, the controller and function that caused the abnormal vehicle wakeup can be located.

[0114] Figure 8 FIG. 1 is a flow chart showing another method for determining a vehicle power feeding reason according to an exemplary embodiment. Figure 8 As shown, the method in step S203 above specifically includes the following steps:

[0115] S801. When the vehicle is in a power-off state, determine whether the controller is in a dormant state based on the working state of the controller through a big data monitoring platform.

[0116] Optionally, the controller operating state may be any of the following: a dormant state and a non-dormant state. When the vehicle is in a power-off state, whether the vehicle controller is in a dormant state may be determined based on the controller operating state before the vehicle is powered on.

[0117] S802: When it is determined that the vehicle is not in a dormant state, determine through the big data monitoring platform that a second power feeding reason of the vehicle is a controller dormancy abnormality.

[0118] Optionally, if it is determined that the vehicle is not in a dormant state (ie, the network is not dormant), the power feeding cause of the vehicle can be determined to be a controller dormancy abnormality. Further, the controller and function that caused the vehicle dormancy abnormality can be located.

[0119] Figure 9 FIG. 1 is a flow chart showing another method for determining a vehicle power feeding reason according to an exemplary embodiment. Figure 9 As shown, the method in step S203 above specifically includes the following steps:

[0120] S901: When the vehicle is in a powered-off state, there is no abnormal awakening of the vehicle, and the vehicle is in a dormant state, determine through the big data monitoring platform that a second power feeding cause of the vehicle is abnormal dark current of the controller.

[0121] Optionally, when the vehicle is in a power-off state, there is no abnormal wake-up of the vehicle, and the vehicle is in a dormant state, the reason for the vehicle's power supply may be that a controller or multiple controllers in the vehicle fail, resulting in abnormal dark current of the controller.

[0122] It should be noted that dark current refers to the current that is still flowing when the vehicle is powered off.

[0123] In one possible implementation, if the dark current of one or more controllers in the vehicle is abnormal, it will lead to continuous consumption of power from the low-voltage battery, causing the vehicle to be powered off. At this time, it is necessary to manually check the dark current of each controller in the vehicle.

[0124] Figure 10 FIG. 1 is a flow chart showing a control process for battery charging according to an exemplary embodiment. Figure 10 As shown, the vehicle data is acquired through the vehicle controller and sent to the cloud-based big data platform, which then determines if there is a power supply problem with the vehicle. Furthermore, the cloud-based big data platform determines whether the vehicle's power status is ON. If the vehicle's power status is ON, it further determines whether the output voltage of the vehicle's power battery is normal. If the vehicle's power status is not ON, it further determines whether the vehicle has a network non-sleep or abnormal network wake-up problem. If the output voltage of the vehicle's power battery is normal, it further determines whether the output voltage of the vehicle's DC-DC is normal. If the output voltage of the vehicle's power battery is abnormal, the cause of the vehicle's power supply is abnormal high-voltage battery output.

[0125] If the vehicle has network problems such as not sleeping or abnormal network wakeup, the reason for the vehicle's power supply is that the vehicle's controller and function do not sleep or wake up abnormally; if the vehicle does not have network problems such as not sleeping or abnormal network wakeup, the reason for the vehicle's power supply is that the dark current of a controller in the vehicle is too large.

[0126] If the vehicle's DC-DC output voltage is normal, the vehicle's power supply failure is caused by an abnormal connection in the low-voltage battery power supply circuit or the fuse box power supply circuit. If the vehicle's DC-DC output voltage is abnormal, the system further determines whether the remaining power battery charge is lower than the power required to meet the DC-DC operating requirements. If the remaining power battery charge is lower than the power required to meet the DC-DC operating requirements, the vehicle's power supply failure is caused by the power battery's remaining power being too low. If the remaining power battery charge is equal to or higher than the power required to meet the DC-DC operating requirements, the vehicle's power supply failure is caused by abnormal DC-DC operation.

[0127] An embodiment of the present application provides a method for determining the cause of vehicle power feeding. The present application can quickly identify the cause of vehicle power feeding and guide staff to handle the vehicle power feeding problem accordingly, which can effectively reduce after-sales costs, human resources, and time costs of customers and manufacturers.

[0128] The above mainly introduces the solution provided by the embodiment of the present application from the perspective of the method. In order to achieve the above functions, the vehicle power feeding reason determination device or electronic device includes hardware structures and / or software modules corresponding to the execution of each function. It should be easy for those skilled in the art to realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0129] In the embodiment of the present application, the vehicle power feeding reason determination device or electronic device can be divided into functional modules according to the above method. For example, the vehicle power feeding reason determination device or electronic device can include various functional modules corresponding to the various functional divisions, or two or more functions can be integrated into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical functional division. In actual implementation, there may be other division methods.

[0130] Figure 11 FIG. 1 is a block diagram of a device for determining a vehicle power feeding cause according to an exemplary embodiment. Figure 11 The vehicle power feeding reason determination device 110 includes: an acquisition module 1101 and a determination module 1102.

[0131] The acquisition module 1101 is used to obtain the vehicle's operating status information from the database when determining the vehicle power feeding. The operating status information includes at least one of the following: power status, the output voltage of the high-voltage battery, the output voltage of the DC-DC converter DC-DC, the wake-up source of the controller, and the controller working status. The power status is any one of the following: power-on state and power-off state. The wake-up source of the controller is used to indicate the way in which the controller is woken up.

[0132] The determination module 1102 is used to determine the first power feeding reason of the vehicle based on the operating status information when the vehicle is in the powered-on state. The first power feeding reason is any one of the following: abnormal high-voltage battery output, wiring harness connection failure, insufficient remaining power of the high-voltage battery, and DC-DC failure.

[0133] The determination module 1102 is further configured to determine a second power feeding reason of the vehicle based on the operating status information when the vehicle is in a power-off state, the second power feeding reason being any one of the following: abnormal dark current of the controller, abnormal sleep of the controller, or abnormal wake-up of the controller.

[0134] In one possible implementation, the determination module 1102 is further used to determine whether the output voltage of the high-voltage battery is within a first preset voltage range when the vehicle is in a powered-on state; the determination module 1102 is further used to determine that the first power feeding cause of the vehicle is abnormal high-voltage battery output when it is determined that the output voltage of the high-voltage battery is not within the first preset voltage range.

[0135] In one possible implementation, the determination module 1102 is further used to determine whether the output voltage of the DC-DC is within a second preset voltage range when the vehicle is in a powered-on state and the output voltage of the high-voltage battery is within a first preset voltage range; the determination module 1102 is further used to determine that the first power feeding cause of the vehicle is a wiring harness connection failure when it is determined that the output voltage of the DC-DC is within the second preset voltage range.

[0136] In one possible embodiment, the determination module 1102 is further used to determine whether the remaining power of the high-voltage battery is less than a preset power when the vehicle is in a powered-on state, the output voltage of the high-voltage battery is within a first preset voltage range, and the output voltage of the DC-DC is not within a second preset voltage range; the determination module 1102 is further used to determine that the first power feeding reason of the vehicle is insufficient remaining power of the high-voltage battery when it is determined that the remaining power of the high-voltage battery is less than the preset power.

[0137] In one possible implementation, the determination module 1102 is further used to determine that the first power feeding cause of the vehicle is a DC-DC failure when the vehicle is in a powered-on state, the output voltage of the high-voltage battery is within a first preset voltage range, the output voltage of the DC-DC is not within a second preset voltage range, and the remaining power of the high-voltage battery is greater than or equal to a preset power.

[0138] In one possible implementation, the determination module 1102 is further configured to determine, when the vehicle is in a power-off state, whether the controller has been abnormally awakened based on the wake-up source of the controller; and the determination module 1102 is further configured to determine that the second power feeding cause of the vehicle is a controller wake-up abnormality when it is determined that the controller has been abnormally awakened.

[0139] In one possible implementation, the determination module 1102 is further used to determine whether the controller is in a sleep state based on the controller working state when the vehicle is in a power-off state; the determination module 1102 is further used to determine that the second power feeding cause of the vehicle is a controller sleep abnormality when it is determined that the vehicle is not in a sleep state.

[0140] In one possible implementation, determination module 1102 is further configured to determine that the second power supply cause of the vehicle is abnormal dark current in the controller when the vehicle is in a powered-off state, has not experienced abnormal wakeup, and is in a dormant state. The specific manner in which each module of the apparatus in the above-described embodiment performs operations has been described in detail in the embodiments of the method and will not be further elaborated here.

[0141] Figure 12 FIG. 1 is a block diagram of an electronic device according to an exemplary embodiment. Figure 12 As shown, the electronic device 120 includes but is not limited to: a processor 1201 and a memory 1202 .

[0142] The memory 1202 is configured to store executable instructions of the processor 1201. It is understood that the processor 1201 is configured to execute instructions to implement the vehicle power feeding reason determination method in the above embodiment.

[0143] It should be noted that those skilled in the art can understand that Figure 12 The electronic device structure shown in the figure does not limit the electronic device, and the electronic device may include Figure 12 More or fewer components may be shown, or certain components may be combined, or the components may be arranged differently.

[0144] The processor 1201 is the control center of the electronic device. It uses various interfaces and lines to connect the various parts of the entire electronic device. By running or executing software programs and / or modules stored in the memory 1202 and calling data stored in the memory 1202, it performs various functions of the electronic device and processes data, thereby monitoring the electronic device as a whole. The processor 1201 may include one or more processing modules. Optionally, the processor 1201 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly handles wireless communications. It is understood that the above-mentioned modem processor may not be integrated into the processor 1201.

[0145] Memory 1202 can be used to store software programs and various data. Memory 1202 may primarily include a program storage area and a data storage area. The program storage area may store an operating system and application programs required by at least one functional module (e.g., an acquisition unit, a determination unit, a processing unit, etc.). Furthermore, memory 1202 may include high-speed random access memory and non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage device.

[0146] In an exemplary embodiment, a computer-readable storage medium including instructions is further provided, such as a memory 1202 including instructions. The above instructions can be executed by the processor 1201 of the electronic device 120 to implement the vehicle power feeding reason determination method in the above embodiment.

[0147] In actual implementation, Figure 11 The functions of the acquisition module 1101 and the determination module 1102 can be obtained by Figure 12 The processor 1201 in the embodiment calls the computer program stored in the memory 1202. The specific execution process can be referred to the description of the vehicle power feeding reason determination method in the above embodiment, which will not be repeated here.

[0148] Optionally, the computer-readable storage medium may be a non-temporary computer-readable storage medium, for example, the non-temporary computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0149] In an exemplary embodiment, a vehicle including a vehicle power feeding cause determination device is further provided. The vehicle can implement the vehicle power feeding cause determination method in the above embodiment through the vehicle power feeding cause determination device.

[0150] In an exemplary embodiment, the present application also provides a computer program product including one or more instructions, which can be executed by the processor 1201 of the electronic device to implement the vehicle power feeding reason determination method in the above embodiment.

[0151] It should be noted that when the instructions in the above-mentioned computer-readable storage medium or one or more instructions in the computer program product are executed by the processor of the electronic device, the various processes of the above-mentioned vehicle power feeding reason determination method embodiment are implemented, and the same technical effect as the above-mentioned vehicle power feeding reason determination method can be achieved. To avoid repetition, they will not be repeated here.

[0152] Through the description of the above implementation methods, technical personnel in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be distributed and completed by different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete the full classification or partial functions described above.

[0153] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of modules or units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0154] The units described as separate components may or may not be physically separate, and the components shown as units may be one physical unit or multiple physical units, that is, they may be located in one place or distributed in multiple places. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0155] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0156] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or the full classification part or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions to enable a device (which can be a single-chip microcomputer, chip, etc.) or a processor (processor) to execute the full classification part or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard drives, ROM, RAM, magnetic disks or optical disks.

[0157] The above are only specific embodiments of the present application, but the scope of protection of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A method for determining the cause of vehicle power feeding, characterized in that: include: When determining vehicle power feeding, obtaining operating status information of the vehicle from a database, the operating status information including at least one of the following: a power supply status, an output voltage of a high-voltage battery, an output voltage of a DC-DC converter, a wake-up source of a controller, and a working status of the controller, the power supply status being any one of the following: a power-on state and a power-off state, and the wake-up source of the controller being used to indicate a manner in which the controller is woken up; When the vehicle is in a powered-on state, determining a first power feeding reason of the vehicle based on the operating state information, the first power feeding reason being any one of the following: abnormal output of a high-voltage battery, a wiring harness connection failure, insufficient remaining power of the high-voltage battery, or a DC-DC failure; When the vehicle is in a power-off state, a second power feeding reason of the vehicle is determined based on the operating state information, where the second power feeding reason is any one of the following: abnormal dark current of the controller, abnormal sleep of the controller, and abnormal wake-up of the controller.

2. The method according to claim 1, characterized in that The determining, when the vehicle is in a powered-on state, based on the operating state information, a first power feeding reason of the vehicle includes: When the vehicle is powered on, determining whether the output voltage of the high-voltage battery is within a first preset voltage range; When it is determined that the output voltage of the high-voltage battery is not within the first preset voltage range, it is determined that the first power feeding cause of the vehicle is abnormal output of the high-voltage battery.

3. The method according to claim 1 or 2, characterized in that The determining, when the vehicle is in a powered-on state, based on the operating state information, a first power feeding reason of the vehicle includes: When the vehicle is powered on and the output voltage of the high-voltage battery is within a first preset voltage range, determining whether the output voltage of the DC-DC is within a second preset voltage range; When it is determined that the output voltage of the DC-DC is within the second preset voltage range, it is determined that the first power feeding cause of the vehicle is the wiring harness connection failure.

4. The method according to claim 3, characterized in that The determining, when the vehicle is in a powered-on state, based on the operating state information, a first power feeding reason of the vehicle includes: determining whether the remaining power of the high-voltage battery is less than a preset power level when the vehicle is powered on, the output voltage of the high-voltage battery is within a first preset voltage range, and the output voltage of the DC-DC is not within a second preset voltage range; When it is determined that the remaining power of the high-voltage battery is less than the preset power, the first power feeding reason of the vehicle is determined to be insufficient remaining power of the high-voltage battery.

5. The method according to claim 4, characterized in that The determining, when the vehicle is in a powered-on state, based on the operating state information, a first power feeding reason of the vehicle includes: When the vehicle is in a powered-on state, the output voltage of the high-voltage battery is within a first preset voltage range, the output voltage of the DC-DC is not within a second preset voltage range, and the remaining power of the high-voltage battery is greater than or equal to the preset power, it is determined that the first power feeding cause of the vehicle is the DC-DC failure.

6. The method according to claim 1, characterized in that The determining, when the vehicle is in a power-off state, based on the operating state information, a second power feeding reason of the vehicle includes: When the vehicle is in a power-off state, determining whether the controller is abnormally awakened based on a wake-up source of the controller; In a case where it is determined that the controller is abnormally awakened, the second power feeding cause of the vehicle is determined to be abnormal awakening of the controller.

7. The method according to claim 1 or 6, characterized in that The determining, when the vehicle is in a power-off state, based on the operating state information, a second power feeding reason of the vehicle includes: When the vehicle is in a power-off state, determining whether the controller is in a dormant state based on the operating state of the controller; In a case where it is determined that the vehicle is not in a dormant state, it is determined that the second power feeding cause of the vehicle is a dormant abnormality of the controller.

8. The method according to claim 7, characterized in that The determining, when the vehicle is in a power-off state, based on the operating state information, a second power feeding reason of the vehicle includes: When the vehicle is in a power-off state, the vehicle is not abnormally awakened, and the vehicle is in a dormant state, it is determined that the second power feeding cause of the vehicle is abnormal dark current of the controller.

9. A vehicle power feeding cause determination device, characterized in that: The vehicle power feeding reason determination device includes an acquisition module and a determination module; The acquisition module is configured to acquire, from a database, operating status information of the vehicle when determining vehicle power feeding, the operating status information including at least one of the following: a power supply status, an output voltage of a high-voltage battery, an output voltage of a DC-DC converter, a wakeup source of a controller, and a controller operating status, wherein the power supply status is any one of the following: a power-on state and a power-off state, and the wakeup source of the controller is used to indicate a method in which the controller is woken up; The determining module is configured to determine, when the vehicle is in a powered-on state, a first power feeding reason of the vehicle based on the operating state information, the first power feeding reason being any one of the following: abnormal high-voltage battery output, wiring harness connection failure, insufficient remaining power of the high-voltage battery, or DC-DC failure; The determination module is further configured to determine, when the vehicle is in a power-off state, a second power feeding reason of the vehicle based on the operating status information, the second power feeding reason being any one of the following: abnormal dark current of the controller, abnormal sleep of the controller, or abnormal wake-up of the controller.

10. An electronic device, characterized in that: include: processor; a memory for storing instructions executable by the processor; The processor is configured to execute the instructions to implement the method according to any one of claims 1 to 8.

11. A computer-readable storage medium, characterized in that When the computer-executable instructions stored in the computer-readable storage medium are executed by a processor of an electronic device, the electronic device can perform the method according to any one of claims 1 to 8.

12. A vehicle, characterized in that: The vehicle includes the vehicle power feeding cause determination device according to claim 9 , and the vehicle is configured to implement the method according to any one of claims 1 to 8 .

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