Diagnostic method and diagnostic system for feed of storage battery

Abstract

The invention discloses a storage battery feed diagnosis method and system, and the method comprises the steps: obtaining a voltage signal, a vehicle door signal, an environment temperature signal, an engine state signal and a vehicle operation state signal of a storage battery, the vehicle operation state signals at least comprise a vehicle ignition switch signal, a vehicle speed signal, a clutch pedal position signal and a brake pedal position signal; and under the condition that the voltage signal of the storage battery, the vehicle door signal, the environment temperature signal, the engine state signal and the vehicle operation state signal meet preset conditions, generating storage battery feed indication information, the storage battery feed indication information comprises at least one of indication information of storage battery feed caused by human reasons and indication information of storage battery feed caused by non-human reasons. According to the invention, the technical problem that the real reason of the feed of the storage battery is difficult to judge by using the feed method of the storage battery in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle battery power feeding diagnosis, and in particular to a battery power feeding diagnosis method and a battery power feeding diagnosis system. Background Art

[0002] In the context of the current digital transformation of the automotive industry, vehicles are no longer just means of transportation, but mobile platforms that integrate complex electronic systems and intelligent technologies. Among them, batteries are the core component of the automotive electrical system, and their health status is directly related to the normal operation and driving safety of the vehicle. However, with the improvement of the level of vehicle electronics, the problem of battery feeding has become increasingly prominent and has become a common problem that troubles car owners and automakers.

[0003] At present, the diagnosis of battery power feeding problems is mainly based on the voltage measurement method. This method has problems such as single judgment factor, low accuracy, and inability to determine the real cause of battery power feeding. This has led to many erroneous claims, which has reduced the after-sales profits of the OEMs and hindered the further development of battery technology to a certain extent.

[0004] With regard to the technical problem that it is difficult to determine the real cause of battery power feeding using the battery power feeding method in the prior art, no effective solution has been proposed yet. Summary of the invention

[0005] The embodiment of the present invention provides a battery power feeding diagnosis method and a diagnosis system, so as to at least solve the technical problem that it is difficult to determine the real cause of battery power feeding using the battery power feeding method in the prior art.

[0006] According to one aspect of an embodiment of the present invention, a method for diagnosing battery power feeding is provided, comprising: acquiring a battery voltage signal, a door signal, an ambient temperature signal, an engine status signal and a vehicle operation status signal, wherein the engine status signal at least includes an engine speed signal, and the vehicle operation status signal at least includes a vehicle ignition switch signal, a vehicle speed signal, a clutch pedal position signal and a brake pedal position signal; upon determining that the battery voltage signal, the door signal, the ambient temperature signal, the engine status signal and the vehicle operation status signal meet preset conditions, generating battery power feeding indication information, wherein the battery power feeding indication information includes at least one of the following: indication information that the battery power feeding is caused by human factors, and indication information that the battery power feeding is caused by non-human factors.

[0007] Further, when it is determined that the battery voltage signal, door signal, ambient temperature signal, engine status signal and vehicle operation status signal meet preset conditions, battery power feeding indication information is generated, including: after the battery continues to operate under the first operating condition for a first preset time, the battery voltage value drops to a first voltage threshold, wherein the first operating condition includes: the door signal is open, the vehicle speed signal is 0, and the engine speed signal is 0; it is determined whether the time for which the battery maintains the first voltage threshold is greater than a second preset time; if so, output indication information that the battery power feeding is caused by human factors.

[0008] Further, when it is determined that the battery voltage signal, door signal, ambient temperature signal, engine status signal and vehicle operation status signal meet preset conditions, battery power feeding indication information is generated, including: after the battery continues to operate under the second operating condition for a third preset time, the battery voltage value drops to a second voltage threshold, wherein the second operating condition includes: the clutch pedal position signal is closed, the brake pedal position signal is closed, the vehicle ignition switch signal cycles between the Off gear and the Start gear, and the engine speed signal cycles between 0 and the first speed threshold; it is determined whether the time for which the battery maintains the second voltage threshold is greater than a fourth preset time; if so, output indication information that the battery power feeding is caused by human factors.

[0009] Further, when it is determined that the battery voltage signal, door signal, ambient temperature signal, engine status signal and vehicle operation status signal meet preset conditions, battery power feeding indication information is generated, including: after the battery continues for a fifth preset time period under the third operating condition, the battery voltage value drops to a third voltage threshold, wherein the third operating condition includes: the vehicle ignition switch signal is on and the engine speed signal is 0; it is determined whether the time period for which the battery maintains the third voltage threshold is greater than a sixth preset time period; if so, output indication information that the battery power feeding is caused by human factors.

[0010] Further, when it is determined that the battery voltage signal, door signal, ambient temperature signal, engine status signal and vehicle operation status signal meet preset conditions, battery power feeding indication information is generated, including: after the battery continues to operate under the fourth operating condition for a seventh preset time period, the battery voltage value drops to a fourth voltage threshold, wherein the fourth operating condition includes: the door signal is closed, the vehicle speed signal is 0, and the engine speed signal is 0; it is determined whether the time period during which the battery maintains the fourth voltage threshold is greater than an eighth preset time period; if so, output indication information that the battery power feeding is caused by non-human factors.

[0011] Further, when it is determined that the battery voltage signal, door signal, ambient temperature signal, engine status signal and vehicle operation status signal meet preset conditions, battery power feeding indication information is generated, including: after the battery continues for a ninth preset time period under the fifth operating condition, the battery voltage value drops to a fifth voltage threshold, wherein the fifth operating condition includes: the door signal is closed, the vehicle speed signal is 0, the engine speed signal is 0, and the ambient temperature signal is less than or equal to the temperature threshold; it is determined whether the time period for which the battery maintains the fifth voltage threshold is greater than the tenth preset time period; if so, output indication information that the battery power feeding is caused by non-human factors.

[0012] Furthermore, the diagnostic method also includes: generating an analysis report based on the battery power feeding indication information, the analysis report at least including detailed reasons causing the battery power feeding, wherein the detailed reasons include at least one of the following: the vehicle door is not closed for a long time, the vehicle is started frequently, the vehicle ignition switch is powered on for a long time, the vehicle is stationary for a long time and the external ambient temperature is too low.

[0013] According to another aspect of an embodiment of the present invention, a battery power feeding diagnostic system is also provided, comprising: an acquisition module, the acquisition module is used to acquire a battery voltage signal, a door signal, an ambient temperature signal, an engine status signal and a vehicle operation status signal, wherein the engine status signal at least includes an engine speed signal, and the vehicle operation status signal at least includes a vehicle ignition switch signal, a vehicle speed signal, a clutch pedal position signal and a brake pedal position signal; a generation module, the generation module is used to generate battery power feeding indication information based on the battery voltage signal, the door signal, the ambient temperature signal, the engine status signal and the vehicle operation status signal satisfying preset conditions, wherein the battery power feeding indication information includes at least one of the following: indication information that the battery power feeding is caused by human factors, and indication information that the battery power feeding is caused by non-human factors.

[0014] According to another aspect of an embodiment of the present invention, a computer storage medium is provided. The computer storage medium includes a stored program, wherein when the program is executed, the device where the computer storage medium is located is controlled to execute the above-mentioned diagnostic method.

[0015] According to another aspect of an embodiment of the present invention, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, the above-mentioned diagnostic method is implemented.

[0016] In the embodiment of the present invention, the obtained battery voltage signal, door signal, ambient temperature signal, engine status signal and vehicle operation status signal are compared with the preset conditions to determine the cause of the battery power feeding and generate corresponding power feeding indication information. The above-mentioned diagnostic method analyzes the cause of the fault through multi-dimensional signals, and then accurately assesses the real cause of the battery power feeding, avoids the limitation of single signal judgment, reduces the false claim rate, and improves the accuracy of diagnosis. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 is a hardware structure block diagram of a computer terminal (or mobile device) for implementing a battery power feeding diagnosis method according to an embodiment of the present invention;

[0019] Figure 2 is a flow chart of a battery feeding diagnosis method according to one embodiment of the present invention;

[0020] Figure 3 is a flow chart of a battery feeding diagnosis method according to yet another embodiment of the present invention;

[0021] Figure 4 FIG. 4 is a structural block diagram of a battery-fed diagnostic system according to one embodiment of the present invention. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] Example 1

[0025] According to an embodiment of the present invention, an embodiment of a diagnostic method for battery feeding is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0026] Figure 1 1 is a hardware structure block diagram of a computer terminal (or mobile device) for implementing a battery power feeding diagnosis method according to an embodiment of the present invention. Figure 1 As shown, the computer terminal (or mobile device) may include one or more processors 102 (the processor may include but is not limited to a central processing unit (CPU), a graphics processing unit (GPU), a digital signal processing (DSP) chip, a microprocessor (MCU), a field programmable logic device (FPGA), a neural network processor (NPU), a tensor processing unit (TPU), an artificial intelligence (AI) type processor, etc.) and a memory 104 for storing data. In addition, a transmission device 106 for communication functions, an input and output device 108, and a display 110 may also be included. It can be understood by those skilled in the art that Figure 1 The structure shown is for illustration only and does not limit the structure of the above-mentioned computer terminal (or mobile device). For example, the computer terminal may also include more or fewer components than the above-mentioned structure description, or have a configuration different from the above-mentioned structure description.

[0027] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the battery power feeding diagnosis method in the embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, the above-mentioned battery power feeding diagnosis method is realized. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories can be connected to the mobile terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof.

[0028] The transmission device 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0029] The display 110 may be a touch screen type liquid crystal display (LCD). The liquid crystal display may enable a user to interact with a user interface of the mobile terminal. In some embodiments, the mobile terminal has a graphical user interface (GUI), and a user may interact with the GUI by finger contact and / or gestures on a touch-sensitive surface, wherein the human-computer interaction functions here may optionally include the following interactions: creating web pages, drawing, word processing, making electronic documents, games, video conferencing, instant messaging, sending and receiving emails, call interfaces, playing digital videos, playing digital music and / or web browsing, etc. Executable instructions for performing the above human-computer interaction functions are configured / stored in a computer program product or readable storage medium executable by one or more processors.

[0030] Figure 2 FIG. 1 is a flow chart of a battery feeding diagnosis method according to one embodiment of the present invention. Figure 2 As shown, the process includes the following steps:

[0031] Step S1: Acquire the battery voltage signal, door signal, ambient temperature signal, engine status signal and vehicle operation status signal, wherein the engine status signal at least includes the engine speed signal, and the vehicle operation status signal at least includes: vehicle ignition switch signal, vehicle speed signal, clutch pedal position signal and brake pedal position signal.

[0032] Specifically, the vehicle sensor collects the battery voltage signal, door signal, ambient temperature signal, engine status signal and vehicle operation status signal in real time. The vehicle sensor is connected to the vehicle networking device signal. The vehicle sensor transmits the collected signal to the vehicle networking device. The vehicle networking device sends the received signal to the cloud server through the network and stores it through the network cloud disk. The algorithm analysis module obtains the above multi-dimensional signals through the network cloud disk and analyzes the multi-dimensional signals.

[0033] Among them, the engine status signal also includes an engine water temperature signal, an engine oil pressure signal and an instantaneous fuel consumption signal. When the engine speed signal changes, the engine water temperature signal, the engine oil pressure signal and the instantaneous fuel consumption signal will also change accordingly. Therefore, the engine water temperature signal, the engine oil pressure signal and the instantaneous fuel consumption signal are used to support the engine speed signal.

[0034] Step S2: When it is determined that the battery voltage signal, door signal, ambient temperature signal, engine status signal and vehicle operation status signal meet preset conditions, generate battery power feeding indication information, wherein the battery power feeding indication information includes at least one of the following: indication information that the battery power feeding is caused by human factors, indication information that the battery power feeding is caused by non-human factors.

[0035] Specifically, the preset conditions are set according to various factors of battery power feeding, including at least: battery power feeding caused by a vehicle door being open for a long time, battery power feeding caused by frequent vehicle starting, battery power feeding caused by a vehicle ignition switch being powered on for a long time, battery power feeding caused by a vehicle being stationary for a long time, and battery power feeding caused by a low ambient temperature. According to the above-mentioned various reasons, threshold values ​​corresponding to each signal are set accordingly, and each signal is used in combination to form the preset conditions.

[0036] In the embodiment of the present application, the obtained battery voltage signal, door signal, ambient temperature signal, engine status signal and vehicle operation status signal are compared with the preset conditions to determine the cause of the battery power feeding and generate corresponding power feeding indication information. The above-mentioned diagnostic method analyzes the cause of the fault through multi-dimensional signals, and then accurately assesses the real cause of the battery power feeding, avoids the limitations of single signal judgment, reduces the false claim rate, and improves the accuracy of diagnosis.

[0037] It should be noted that battery recharging usually refers to a state where the battery is completely exhausted and the voltage drops to a level that cannot provide the necessary power for the vehicle's electrical system, making it impossible for the vehicle to start or operate normally. At this time, the battery needs professional repair or replacement. Battery depletion usually refers to a state where the battery power is lower than the level required for normal operation, but it is not completely exhausted. In this state, the battery has difficulty providing stable power, especially during cold starts, but after the vehicle's engine is started, the battery can usually be charged by the generator to restore its function.

[0038] In an exemplary embodiment of the present application, in step S2, when it is determined that the battery voltage signal, the door signal, the ambient temperature signal, the engine status signal, and the vehicle operation status signal meet the preset conditions, generating the battery feeding indication information includes the following steps: Figure 3 shown.

[0039] Step S211: After the battery operates in the first operating condition for a first preset period of time, the voltage of the battery drops to a first voltage threshold, wherein the first operating condition includes: the door signal is open, the vehicle speed signal is 0, and the engine speed signal is 0.

[0040] Specifically, taking a 24V battery as an example, when the voltage value of the battery drops to 10V or below, it indicates that the battery is seriously depleted.

[0041] Among them, when the door signal is in the open state, the vehicle speed signal is 0 and the engine speed signal is 0, which means that the vehicle has not been driven for a long time and the door is not closed. When the vehicle is in this state, the electrical equipment on the vehicle, such as interior lights, alarm systems, etc., may continue to consume battery power.

[0042] Step S212: Determine whether the time period during which the battery maintains the first voltage threshold is greater than a second preset time period.

[0043] Specifically, taking a 24V battery as an example, the first voltage threshold is less than or equal to 10V; when the battery maintains the first voltage threshold for a second preset time (generally several days to more than ten days), it can be inferred that the battery is feeding, that is, the battery is not only unable to start the engine, but also unable to power the most basic electrical equipment of the vehicle, such as the dashboard, window control, etc. When the battery is in the feeding state, its electrochemical reaction may be close to stagnation, and a large amount of lead sulfate may be formed inside, which makes charging difficult and may even permanently damage the battery.

[0044] Step S213: If yes, output indication information that the battery power feeding is caused by human factors.

[0045] When the signal meets the above preset conditions, it can be determined that the power feeding is caused by the door not being closed for a long time, which is a battery power feeding caused by human factors.

[0046] In an exemplary embodiment of the present application, in step S2, when it is determined that the battery voltage signal, the door signal, the ambient temperature signal, the engine status signal, and the vehicle operation status signal meet the preset conditions, generating the battery feeding indication information includes the following steps: Figure 3 shown.

[0047] Step S221: After the battery operates under the second operating condition for a third preset time period, the voltage value of the battery drops to a second voltage threshold, wherein the second operating condition includes: the clutch pedal position signal is closed, the brake pedal position signal is closed, the vehicle ignition switch signal cycles between the Off gear and the Start gear, and the engine speed signal cycles between 0 and the first speed threshold.

[0048] Specifically, taking a 24V battery as an example, when the voltage value of the battery drops to 10V or below, it indicates that the battery is seriously depleted.

[0049] Among them, when the clutch pedal position signal is closed, the brake pedal position signal is closed, the vehicle ignition switch signal is cyclically switched between the Off gear and the Start gear, and the engine speed signal is cyclically switched between 0 and the first speed threshold, it means that the vehicle is in a state of frequent starting.

[0050] Every time you start the vehicle, the starter needs to draw a large amount of current from the battery to drive the engine until the engine starts successfully. This instantaneous current demand is much higher than the energy consumption during normal operation of the vehicle, usually ranging from hundreds to thousands of amperes, which is a large charge burden on the battery.

[0051] When the vehicle is started frequently, especially when it is started multiple times in a short period of time, the charge burden on the battery will be aggravated, which is specifically manifested in the following aspects: First, after the vehicle is started, the engine charges the battery through the generator. If the vehicle is turned off again soon, the battery may not have enough time to fully recover the power consumed during the starting process. If this pattern occurs repeatedly, the battery will gradually enter a state of power loss and may eventually be unable to recover from each short charge, resulting in power failure. Second, the frequent starting of the vehicle causes the battery to be in a deep discharge state, that is, the power is quickly consumed to a lower level. Deep discharge will reduce the capacity and life of the battery because it will accelerate the chemical reaction inside the battery and the degradation of the electrode material, reducing the battery's ability to store and provide electrical energy.

[0052] Among them, during the frequent starting of the vehicle, the engine water temperature will experience a fluctuation from a lower temperature to a slightly higher temperature, and there will be instantaneous fuel consumption, and the engine oil pressure will rise instantaneously.

[0053] Step S222: Determine whether the time period during which the battery maintains the second voltage threshold is greater than a fourth preset time period.

[0054] Specifically, taking a 24V battery as an example, the second voltage threshold is less than or equal to 10V; when the battery maintains the second voltage threshold for a fourth preset time period (generally several days to more than ten days), it can be inferred that the battery is feeding, that is, the battery is not only unable to start the engine, but is even unable to power the most basic electrical equipment of the vehicle, such as the dashboard, window controls, etc. When the battery is in the feeding state, its electrochemical reaction may be close to stagnation, and a large amount of lead sulfate may be formed inside, which makes charging difficult and may even permanently damage the battery.

[0055] Step S223: If yes, output indication information that the battery power feeding is caused by human factors.

[0056] When the signal meets the above preset conditions, it can be determined that the power feeding is caused by frequent vehicle starting, which is a battery power feeding caused by human factors.

[0057] In an exemplary embodiment of the present application, in step S2, when it is determined that the battery voltage signal, the door signal, the ambient temperature signal, the engine status signal, and the vehicle operation status signal meet the preset conditions, generating the battery feeding indication information includes the following steps: Figure 3 shown.

[0058] Step S231: After the battery operates in the third operating condition for a fifth preset time period, the voltage of the battery drops to a third voltage threshold, wherein the third operating condition includes: the vehicle ignition switch signal is on and the engine speed signal is 0.

[0059] Specifically, taking a 24V battery as an example, when the voltage value of the battery drops to 10V or below, it indicates that the battery is seriously depleted.

[0060] Among them, the vehicle ignition switch signal is on and the engine speed signal is 0, indicating that some electrical systems of the vehicle have been activated. Even if the engine is not started, the dashboard, entertainment system, air-conditioning system, various sensors and control units will consume power while waiting for the engine to start. In this state, the battery power will continue to decrease, eventually leading to serious power loss.

[0061] Step S232: Determine whether the time period during which the battery maintains the third voltage threshold is greater than a sixth preset time period.

[0062] Specifically, taking a 24V battery as an example, the third voltage threshold is less than or equal to 10V; when the battery maintains the sixth preset time period (generally several days to more than ten days) at the third voltage threshold, it can be inferred that the battery is feeding, that is, the battery is not only unable to start the engine, but also unable to power the most basic electrical equipment of the vehicle, such as the dashboard, window control, etc. When the battery is in the feeding state, its electrochemical reaction may be close to stagnation, and a large amount of lead sulfate may be formed inside, which makes charging difficult and may even permanently damage the battery.

[0063] Step S233: If yes, output indication information that the battery power feeding is caused by human factors.

[0064] When the signal meets the above preset conditions, it can be determined that the battery power feeding is caused by the vehicle ignition switch being in the power-on state for a long time, which is a battery power feeding caused by human factors.

[0065] In an exemplary embodiment of the present application, in step S2, when it is determined that the battery voltage signal, the door signal, the ambient temperature signal, the engine status signal, and the vehicle operation status signal meet the preset conditions, generating the battery feeding indication information includes the following steps: Figure 3 shown.

[0066] Step S241: After the battery operates in the fourth operating condition for a seventh preset time period, the voltage of the battery drops to a fourth voltage threshold, wherein the fourth operating condition includes: a door signal is closed, a vehicle speed signal is 0, and an engine speed signal is 0.

[0067] Specifically, taking a 24V battery as an example, when the voltage value of the battery drops to 10V or below, it indicates that the battery is seriously depleted.

[0068] Among them, the door signal is closed, the speed signal is 0, and the engine speed signal is 0, indicating that the vehicle is in a stationary state. The electrochemical reaction inside the battery will proceed slowly in a stationary state, resulting in natural loss of power.

[0069] Step S242: Determine whether the time period during which the battery maintains the fourth voltage threshold is greater than an eighth preset time period.

[0070] Specifically, taking a 24V battery as an example, the fourth voltage threshold is less than or equal to 10V; the battery maintains the eighth preset time (generally several days to more than ten days) at the fourth voltage threshold, it can be inferred that the battery is feeding, that is, the battery is not only unable to start the engine, but even unable to power the most basic electrical equipment of the vehicle, such as the dashboard, window control, etc. When the battery is in the feeding state, its electrochemical reaction may have been close to stagnation, and a large amount of lead sulfate may have been formed inside, which makes charging difficult and may even permanently damage the battery.

[0071] Step S243: If yes, output indication information that the battery power feeding is caused by non-human factors.

[0072] When the signal meets the above preset conditions, it can be determined that the battery power feeding is caused by the long-term stationary state of the vehicle, which is a battery power feeding caused by non-human factors.

[0073] In an exemplary embodiment of the present application, in step S2, when it is determined that the battery voltage signal, the door signal, the ambient temperature signal, the engine status signal, and the vehicle operation status signal meet the preset conditions, generating the battery feeding indication information includes the following steps: Figure 3 shown.

[0074] Step S251: After the battery operates under the fifth operating condition for a ninth preset time period, the battery voltage drops to a fifth voltage threshold, wherein the fifth operating condition includes: the door signal is closed, the vehicle speed signal is 0, the engine speed signal is 0, and the ambient temperature signal is less than or equal to the temperature threshold.

[0075] Specifically, taking a 24V battery as an example, when the voltage value of the battery drops to 10V or below, it indicates that the battery is seriously depleted.

[0076] Among them, the door signal is closed, the vehicle speed signal is 0, the engine speed signal is 0, and the ambient temperature signal is less than or equal to the temperature threshold, which is generally below -10°C, indicating that the vehicle is stationary at low temperatures. Although the battery should theoretically have a low self-discharge rate when it is stationary, the self-discharge rate will increase at extremely low temperatures. This is mainly because the low temperature environment accelerates certain chemical reactions inside the battery, causing the battery to gradually lose power even without an external load.

[0077] Step S252: Determine whether the time period during which the battery maintains the fifth voltage threshold is greater than a tenth preset time period.

[0078] Specifically, taking a 24V battery as an example, the fifth voltage threshold is less than or equal to 10V; when the battery maintains the fifth voltage threshold for the tenth preset time (generally several days to more than ten days), it can be inferred that the battery is feeding, that is, the battery is not only unable to start the engine, but also unable to power the most basic electrical equipment of the vehicle, such as the dashboard, window control, etc. When the battery is in the feeding state, its electrochemical reaction may be close to stagnation, and a large amount of lead sulfate may be formed inside, which makes charging difficult and may even permanently damage the battery.

[0079] Step S253: If yes, output indication information that the battery power feeding is caused by non-human factors.

[0080] When the signal meets the above preset conditions, it can be determined that the battery power feeding is caused by the external environment being too low, which is a battery power feeding caused by non-human factors.

[0081] In an exemplary embodiment of the present application, the diagnostic method further includes the following steps: Figure 3 shown.

[0082] Step S3: Generate an analysis report based on the battery power feeding indication information, the analysis report at least including detailed reasons causing the battery power feeding, wherein the detailed reasons include at least one of the following: the vehicle door is not closed for a long time, the vehicle is started frequently, the vehicle ignition switch is powered on for a long time, the vehicle is stationary for a long time and the external ambient temperature is too low.

[0083] According to the generated analysis report, the battery can be maintained accordingly. The analysis report can also serve as a basis for product design and improvement, helping the R&D team to optimize the electrical system design, improve battery performance, and increase the reliability of the vehicle under extreme conditions.

[0084] In another specific embodiment of the present application, a battery-powered diagnostic system is also provided.

[0085] Specifically, Figure 4 As shown, the diagnostic system includes an acquisition module and a generation module.

[0086] The acquisition module is used to acquire the battery voltage signal, door signal, ambient temperature signal, engine status signal and vehicle operation status signal, wherein the engine status signal at least includes the engine speed signal, and the vehicle operation status signal at least includes: vehicle ignition switch signal, vehicle speed signal, clutch pedal position signal and brake pedal position signal.

[0087] The generation module is used to generate battery power feeding indication information based on the battery voltage signal, door signal, ambient temperature signal, engine status signal and vehicle operation status signal satisfying preset conditions, wherein the battery power feeding indication information includes at least one of the following: indication information that the battery power feeding is caused by human factors, and indication information that the battery power feeding is caused by non-human factors.

[0088] In the embodiment of the present application, the obtained battery voltage signal, door signal, ambient temperature signal, engine status signal and vehicle operation status signal are compared with the preset conditions to determine the cause of the battery power feeding and generate corresponding power feeding indication information. The above-mentioned diagnostic system analyzes the cause of the fault through multi-dimensional signals, and then accurately assesses the real cause of the battery power feeding, avoids the limitations of single signal judgment, reduces the rate of false claims, and improves the accuracy of diagnosis.

[0089] In another specific embodiment of the present application, a computer storage medium is provided, wherein the computer storage medium includes a stored program, wherein when the program is executed, the device where the computer storage medium is located is controlled to execute the above-mentioned diagnostic method.

[0090] In this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0091] Step S1: Acquire the battery voltage signal, door signal, ambient temperature signal, engine status signal and vehicle operation status signal, wherein the engine status signal at least includes the engine speed signal, and the vehicle operation status signal at least includes: vehicle ignition switch signal, vehicle speed signal, clutch pedal position signal and brake pedal position signal.

[0092] Step S2: When it is determined that the battery voltage signal, door signal, ambient temperature signal, engine status signal and vehicle operation status signal meet preset conditions, generate battery power feeding indication information, wherein the battery power feeding indication information includes at least one of the following: indication information that the battery power feeding is caused by human factors, indication information that the battery power feeding is caused by non-human factors.

[0093] In the embodiment of the present application, the obtained battery voltage signal, door signal, ambient temperature signal, engine status signal and vehicle operation status signal are compared with the preset conditions to determine the cause of the battery power feeding and generate corresponding power feeding indication information. The above-mentioned diagnostic method analyzes the cause of the fault through multi-dimensional signals, and then accurately assesses the real cause of the battery power feeding, avoids the limitations of single signal judgment, reduces the false claim rate, and improves the accuracy of diagnosis.

[0094] In another specific embodiment of the present application, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, the diagnostic method in the above embodiment is implemented.

[0095] In this embodiment, the processor may be configured to perform the following steps through a computer program:

[0096] Step S1: Acquire the battery voltage signal, door signal, ambient temperature signal, engine status signal and vehicle operation status signal, wherein the engine status signal at least includes the engine speed signal, and the vehicle operation status signal at least includes: vehicle ignition switch signal, vehicle speed signal, clutch pedal position signal and brake pedal position signal.

[0097] Step S2: When it is determined that the battery voltage signal, door signal, ambient temperature signal, engine status signal and vehicle operation status signal meet preset conditions, generate battery power feeding indication information, wherein the battery power feeding indication information includes at least one of the following: indication information that the battery power feeding is caused by human factors, indication information that the battery power feeding is caused by non-human factors.

[0098] In the embodiment of the present application, the obtained battery voltage signal, door signal, ambient temperature signal, engine status signal and vehicle operation status signal are compared with the preset conditions to determine the cause of the battery power feeding and generate corresponding power feeding indication information. The above-mentioned diagnostic method analyzes the cause of the fault through multi-dimensional signals, and then accurately assesses the real cause of the battery power feeding, avoids the limitations of single signal judgment, reduces the false claim rate, and improves the accuracy of diagnosis.

[0099] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0100] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0101] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0102] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0103] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0104] 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 computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0105] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A battery feeding diagnostic method, characterized in that: include: Acquire a battery voltage signal, a door signal, an ambient temperature signal, an engine status signal, and a vehicle operation status signal, wherein the engine status signal at least includes an engine speed signal, and the vehicle operation status signal at least includes: a vehicle ignition switch signal, a vehicle speed signal, a clutch pedal position signal, and a brake pedal position signal; When it is determined that the battery voltage signal, the door signal, the ambient temperature signal, the engine status signal and the vehicle operation status signal meet preset conditions, battery power feeding indication information is generated, wherein the battery power feeding indication information includes at least one of the following: indication information that the battery power feeding is caused by human factors, indication information that the battery power feeding is caused by non-human factors.

2. The diagnostic method according to claim 1, characterized in that When it is determined that the battery voltage signal, the vehicle door signal, the ambient temperature signal, the engine state signal, and the vehicle operation state signal meet preset conditions, generating battery feeding indication information includes: After the battery is in the first working condition for a first preset time, the voltage value of the battery drops to a first voltage threshold, wherein the first working condition includes: the door signal is open, the vehicle speed signal is 0, and the engine speed signal is 0; Determining whether the duration for which the battery maintains the first voltage threshold is greater than a second preset duration; If yes, output the indication information that the battery is fed back due to human factors.

3. The diagnostic method according to claim 1, characterized in that: When it is determined that the battery voltage signal, the vehicle door signal, the ambient temperature signal, the engine state signal, and the vehicle operation state signal meet preset conditions, generating battery feeding indication information includes: After the battery is in the second operating condition for a third preset time, the voltage value of the battery drops to a second voltage threshold, wherein the second operating condition includes: the clutch pedal position signal is closed, the brake pedal position signal is closed, the vehicle ignition switch signal is cyclically switched between the Off gear and the Start gear, and the engine speed signal is cyclically switched between 0 and the first speed threshold; Determining whether the duration for which the battery maintains the second voltage threshold is greater than a fourth preset duration; If yes, output the indication information that the battery is fed back due to human factors.

4. The diagnostic method according to claim 1, characterized in that: When it is determined that the battery voltage signal, the vehicle door signal, the ambient temperature signal, the engine state signal, and the vehicle operation state signal meet preset conditions, generating battery feeding indication information includes: After the battery is in the third working condition for a fifth preset time, the voltage value of the battery drops to a third voltage threshold, wherein the third working condition includes: the vehicle ignition switch signal is on and the engine speed signal is 0; Determining whether the duration for which the battery maintains the third voltage threshold is greater than a sixth preset duration; If yes, output the indication information that the battery is fed back due to human factors.

5. The diagnostic method according to claim 1, characterized in that: When it is determined that the battery voltage signal, the vehicle door signal, the ambient temperature signal, the engine state signal, and the vehicle operation state signal meet preset conditions, generating battery feeding indication information includes: After the battery is in the fourth operating condition for a seventh preset time period, the voltage value of the battery drops to a fourth voltage threshold, wherein the fourth operating condition includes: the door signal is closed, the vehicle speed signal is 0, and the engine speed signal is 0; Determining whether the duration for which the battery maintains the fourth voltage threshold is greater than an eighth preset duration; If yes, an indication message indicating that the battery is powered on due to non-human factors is output.

6. The diagnostic method according to claim 1, characterized in that: When it is determined that the battery voltage signal, the vehicle door signal, the ambient temperature signal, the engine state signal, and the vehicle operation state signal meet preset conditions, generating battery feeding indication information includes: After the battery is in the fifth operating condition for a ninth preset time, the voltage value of the battery drops to a fifth voltage threshold, wherein the fifth operating condition includes: the door signal is closed, the vehicle speed signal is 0, the engine speed signal is 0, and the ambient temperature signal is less than or equal to a temperature threshold; Determining whether the duration for which the battery is maintained at the fifth voltage threshold is greater than a tenth preset duration; If yes, an indication message indicating that the battery is powered on due to non-human factors is output.

7. The diagnostic method according to claim 1, characterized in that: The diagnostic method further comprises: An analysis report is generated based on the battery power feeding indication information, wherein the analysis report at least includes detailed reasons causing the battery power feeding, wherein the detailed reasons include at least one of the following: a vehicle door is not closed for a long time, the vehicle is started frequently, the vehicle ignition switch is powered on for a long time, the vehicle is stationary for a long time, and the external environment temperature is too low.

8. A battery-fed diagnostic system, characterized in that: include: An acquisition module, the acquisition module is used to acquire a battery voltage signal, a door signal, an ambient temperature signal, an engine state signal and a vehicle operation state signal, wherein the engine state signal at least includes an engine speed signal, and the vehicle operation state signal at least includes: a vehicle ignition switch signal, a vehicle speed signal, a clutch pedal position signal and a brake pedal position signal; A generation module, the generation module is used to generate battery power feeding indication information based on the voltage signal of the battery, the door signal, the ambient temperature signal, the engine status signal and the vehicle operation status signal satisfying preset conditions, wherein the battery power feeding indication information includes at least one of the following: indication information of battery power feeding caused by human factors, indication information of battery power feeding caused by non-human factors.

9. A computer storage medium, characterized in that The computer storage medium includes a stored program, wherein when the program is executed, the device where the computer storage medium is located is controlled to execute the diagnostic method according to any one of claims 1 to 7.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the diagnostic method according to any one of claims 1 to 7 is implemented.

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