Vehicle-mounted electric appliance fuse ablation reminding method and device and electronic equipment
By obtaining and comparing the current signal and threshold of vehicle-mounted electrical appliances in real time, determining the fuse breakage and pushing reminder information, the problem of timely reminding of fuse breakage of high-output power appliances in the existing technology is solved, and the safety and cost-effectiveness are improved.
Patent Information
- Application Number
- CN202411931645.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-04-25
AI Technical Summary
In the existing automotive electronic and electrical technologies, high-power electrical appliances such as electronic fans and electronic water pumps lack timely reminders when the fuse is fuse or ablated, resulting in difficulty in detecting faults, posing safety hazards, and traditional detection methods increase costs.
By obtaining the preset electronic control signal of the on-board electrical appliance and the current measured signal output from the DCDC in real time, comparing the current measured signal with the preset current threshold, determining whether the insurance is fuse-breaking, and pushing reminder information to the vehicle end when fuse-breaking.
There is no need to increase hardware costs, and timely reminders are achieved through signal data processing to ensure vehicle safety, reduce losses, and avoid occasional failures and high-cost detection caused by insurance ablation.
Smart Images
Figure CN119881752A_ABST
Abstract
Description
[Technical field]
[0001] The embodiments of the present application relate to the field of automotive electronic and electrical technology, and in particular to a method, device and electronic equipment for reminding vehicle-mounted electrical appliance fuse burnout. [Background technology]
[0002] At present, the electronic fans, electronic water pumps and other electrical appliances with large output power used in automobiles are all open-loop controlled, and do not actively feedback the real-time current or speed during actual operation. Therefore, when the corresponding fuse is blown / burned, there is no timely reminder information. At this time, the whole vehicle is still in operation, resulting in the possibility of discovering that the fuse has already been burned until it stops working or a serious fault occurs, which brings safety hazards to driving.
[0003] Moreover, since the entire vehicle can continue to work for a certain period of time after the fuse is burned out, this problem usually manifests itself as an occasional fault, which makes it difficult to troubleshoot on a daily basis. It is often necessary for the vehicle to enter the station for a comprehensive and professional inspection before the fault can be discovered. In addition, the traditional method of detecting fuse burnout proposed in the industry is mainly to add a detection circuit in the fuse box to monitor the status of the fuse, which will bring unnecessary cost investment. [Summary of the invention]
[0004] The embodiments of the present application propose a method, device and electronic equipment for reminding vehicle-mounted electrical appliance fuse burnout, which relate to the field of automotive electronic and electrical technology and can promptly send fuse blown warning information of specific electrical appliances to users based on signal data processing without increasing hardware costs.
[0005] In a first aspect, an embodiment of the present application provides a method for reminding a vehicle-mounted electrical appliance fuse to burn out, the method comprising:
[0006] Real-time acquisition of preset electric control signals of on-board electrical appliances uploaded by the vehicle end and actual current measurement signals output by DCDC;
[0007] According to the current operating state of the on-board electrical appliance represented by the preset electric control signal, obtaining a preset current threshold value corresponding to the current operating state;
[0008] Based on the comparison result between the current measured signal and the current threshold, it is determined whether the fuse of the vehicle electrical appliance is blown;
[0009] After determining that the fuse has blown, a reminder message is pushed to the vehicle.
[0010] In at least one possible implementation manner, the current measurement signal is compared with the current threshold value in a manner including: obtaining a current change average of the current measurement signal in a predetermined time period, and comparing the current change average with the current threshold value.
[0011] In at least one possible implementation manner, the method of comparing the current measurement signal with the current threshold comprises: acquiring the current measurement signal corresponding to the operating state for multiple consecutive times, and comparing the multiple current measurement signals with the current threshold.
[0012] In at least one possible implementation manner, the current threshold is set in a manner including:
[0013] Pre-calibrate the total DCDC output current when the vehicle electrical appliances are in the operating state under normal working conditions where the fuse is not blown;
[0014] The current threshold is set accordingly according to the calibrated total DCDC output current.
[0015] In at least one possible implementation, the pushing of reminder information to the vehicle terminal includes:
[0016] Obtain the remaining operating time of the on-board electrical appliances estimated by the vehicle end;
[0017] Based on the countdown of the remaining running time, the push frequency and / or push method of the reminder information are adjusted.
[0018] In at least one possible implementation manner, the preset electric control signal includes: an operating gear position signal and / or a driving pulse signal requested by a vehicle control unit.
[0019] In at least one possible implementation manner, the operating state includes any one of the following: switching of operating gears of the vehicle-mounted electrical appliances and increasing output power.
[0020] The technical effects of the above scheme can be summarized as follows: based on the preset electric control signal of the on-board electrical appliances obtained in real time by the vehicle side and the current measurement signal output by the DCDC, while determining the current operating state of the on-board electrical appliances, the current threshold corresponding to the current operating state recorded in advance is compared with the current current measurement signal and the corresponding current threshold, and the indirect signal data processing method is used to calculate whether the fuse of the on-board electrical appliances is blown. If it is determined that a fuse has occurred, a reminder message is immediately pushed to the vehicle side. This application does not require the addition of additional hardware. By formulating early warning rules related to data processing in the background and pushing fuse blown warning information in a timely manner, it effectively ensures vehicle safety and reduces losses.
[0021] In a second aspect, an embodiment of the present application provides a vehicle-mounted electrical appliance fuse burnout reminder device, the device comprising:
[0022] The vehicle-side signal acquisition module is used to obtain the preset electric control signals of the vehicle-mounted electrical appliances uploaded by the vehicle-side and the current measurement signals output by the DCDC in real time;
[0023] A standard data retrieval module, used to obtain a preset current threshold value corresponding to the current operating state according to the current operating state of the vehicle-mounted electrical appliance represented by the preset electric control signal;
[0024] A fuse burnout judgment module is used to judge whether the fuse of the vehicle electrical appliance is blown based on the comparison result between the current measured current signal and the current threshold value;
[0025] The ablation reminder module is used to push reminder information to the vehicle end after determining that the fuse has blown.
[0026] In a third aspect, an embodiment of the present application provides an electronic device, comprising: one or more processors, a memory, and one or more computer programs, wherein the memory may adopt a non-volatile storage medium, wherein the one or more computer programs are stored in the memory, and the one or more computer programs include instructions, and when the instructions are executed by the device, the electronic device performs the method as described in the first aspect or any possible implementation manner of the first aspect.
[0027] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program. When the computer-readable storage medium is run on a computer, the computer executes the method as described in the first aspect or any possible implementation of the first aspect.
[0028] It should be understood that the second to fourth aspects of the embodiments of the present application are consistent with the technical solutions of the first aspect of the embodiments of the present application, and the beneficial effects achieved by each aspect and the corresponding feasible implementation methods are similar and will not be repeated here.
Brief Description of the Drawings
[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0030] Figure 1 A schematic diagram of a flow chart of a method for reminding a vehicle electrical appliance fuse to burn out provided in an embodiment of the present application;
[0031] Figure 2 A schematic diagram of the structure of a vehicle-mounted electrical appliance fuse burnout reminder device provided in an embodiment of the present application. [Specific implementation method]
[0032] In order to better understand the technical solution of this specification, the embodiments of the present application are described in detail below with reference to the accompanying drawings.
[0033] It should be clear that the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this specification.
[0034] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit this specification. The singular forms of "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.
[0035] Regarding the problem mentioned above, for example: the entire vehicle will be cooled by natural wind during driving, so when the fuse of the electronic fan blows, the entire vehicle can still continue to drive and the air conditioning can still be turned on for cooling. However, after driving for a long time, when it is found that the air conditioning is not cooling well, the compressor may have overheated or even damaged because the electronic fan has not been started for a long time; similarly, when the fuse of the electronic water pump blows, the vehicle can also continue to drive, but long-term driving will cause the engine / drive motor over-temperature alarm to appear, which will cause the vehicle to suddenly lose power.
[0036] In view of this, the embodiment of the present application provides a method for reminding the vehicle electrical appliance of fuse burnout. The method is based on the preset electric control signal of the vehicle electrical appliance obtained in real time by the vehicle end and the actual current measurement signal output by the DCDC. While determining the current operating state of the vehicle electrical appliance, the method calculates whether the fuse of the vehicle electrical appliance is blown by comparing the current actual current measurement signal and the corresponding current threshold value from the pre-recorded current threshold corresponding to the current operating state in an indirect signal data processing manner. If it is determined that the fuse is blown, a reminder message is immediately pushed to the vehicle end. This application does not require the addition of additional hardware. By formulating early warning rules related to data processing in the background and pushing fuse blown warning information in a timely manner, it effectively ensures vehicle safety and reduces losses.
[0037] The technical solution protected by the embodiments of the present application is described in detail below with reference to the accompanying drawings.
[0038] See also Figure 1 , is a flow chart of a method for reminding a vehicle-mounted electrical appliance fuse burnout provided in an embodiment of the present application. The flow of the method is described as follows:
[0039] Step S1, real-time acquisition of preset electric control signals of vehicle-mounted electrical appliances uploaded by the vehicle end and current measurement signals output by DCDC; in some preferred embodiments, the preset electric control signals include: operating gear signals and / or drive pulse signals requested by the vehicle control unit.
[0040] Step S2, according to the current operating state of the vehicle-mounted electrical appliance represented by the preset electric control signal, obtain a preset current threshold value corresponding to the current operating state; technical personnel in this field can understand that different vehicle-mounted electrical appliances may have different states, and the following operating state diagram is given here for implementation reference, including any of the following: the vehicle-mounted electrical appliance executes gear switching and increases output power.
[0041] Step S3, based on the comparison result between the current measured current signal and the current threshold, determine whether the fuse of the vehicle electrical appliance is blown; it should be pointed out here that even if the measured current and the standard current values can be directly compared, in real scenarios, simply and singlely comparing the current will result in misjudgment (the specific reasons will be explained later with examples, and will not be repeated here). Therefore, in other preferred embodiments of the present application, it is proposed that: first, the current change mean of the current measured signal in a given time period is obtained, and the current change mean is compared with the current threshold; second, the current measured signal corresponding to the operating state is obtained for multiple consecutive times, and the multiple current measured signals are compared with the current threshold. The above two comparison methods can be independently configured or used in combination according to the actual scenario and the specific vehicle electrical appliances, and the purpose is to reduce the misjudgment rate.
[0042] In addition, it can be supplemented that the setting method of the current threshold can be referred to as follows: pre-calibrate the total DCDC output current when the vehicle-mounted electrical appliances are in the operating state under normal operating conditions where the fuse is not blown; and set the current threshold accordingly based on the calibrated total DCDC output current.
[0043] Step S4: After determining that the fuse has blown, a reminder message is pushed to the vehicle end.
[0044] Finally, it can be added to the above embodiment that, since the vehicle can continue to drive after the fuse of some specific on-board electrical appliances blows, the method of pushing reminder information to the vehicle side can also be expanded to: obtain the remaining operating time of the on-board electrical appliances estimated by the vehicle side (for example, a rough estimate can be made based on the temperature values involved in the electrical appliances and expert experience); based on the countdown of the remaining operating time, adjust the push frequency and / or push method of the reminder information, with the goal of attracting the user's attention as much as possible before the electrical appliances fail to operate or even the vehicle loses power, so as to facilitate timely response measures.
[0045] In combination with the above embodiments, it can be expanded that in actual operation, the following signals of the local vehicle are continuously collected through the vehicle-mounted wireless network terminal: the electronic fan gear position signal and the first PWM signal of the electronic fan requested by the vehicle controller VCU, the output total current signal of the DCDC, and the second PWM signal of the electronic water pump of the engine or drive motor requested by the engine control module ECM; after collecting the above signals, they are uploaded to the cloud server, and the cloud server determines whether the fuses corresponding to these vehicle-mounted electrical appliances are burned out and blown according to the following specific strategy, and when the established conditions are met, the reminder information of the fuse blowing is pushed to the user end.
[0046] Strategy 1: Taking an electronic fan with high and low dual gears as an example, the electronic fan has three gear states: 0-not working; 1-low gear, 2-high gear; and includes four switching states (0-1, 1-2, 2-1, 1-0). The current change values corresponding to these four switching states can be calibrated according to the actual vehicle power of the electronic fan (8A is taken as an example below, but it is not limited to this. In some embodiments, it may also be 10A or other values).
[0047] When the signal representation of the VCU requesting the electronic fan to work switches from not working 0 to low speed 1, the electronic fan low speed relay will be triggered to energize. At this time, the total DCDC current will quickly rise to more than 8A and remain stable for more than 5 seconds, and it is judged that the electronic fan fuse is normal; similarly, when switching from low speed to high speed, the total DCDC current will quickly increase to more than 8A and remain stable for more than 5 seconds, and it is judged that the electronic fan fuse is normal; and when switching from high speed to low speed, the total DCDC current will also quickly drop by more than 8A, so the same strategy can be used to make a judgment.
[0048] Therefore, an example corresponding to the above calibration data is provided here. When the gear is switched three times in succession, if the average value of the total DCDC current change within 5 seconds is less than 5A, it means that the electronic fan does not respond to the request and the fuse may have blown.
[0049] Regarding the 5 seconds, average value, and three gear shifts mentioned in this embodiment, this is because the present application further considers that it is not possible to rely solely on the single indicator of the change in the total DCDC current for judgment, because there are generally electrical appliances that work for a short time or intermittently on the whole vehicle, such as brake lights / double flash lights / vacuum pumps, etc., and when these electrical appliances are turned on, the current fluctuates greatly. Therefore, in the aforementioned embodiment, it is proposed to add a condition of maintaining for 5 seconds to avoid misjudgment; similarly, the instantaneous change in the current of the electronic fan when the gear is switched is also relatively large, so when comparing the current, the average value of the current change within the 5 seconds can be continuously monitored, and this can be used as the DCDC current when the electronic fan is working stably. Not only that, since the present application is conceived to use indirect indicators to determine whether the fuse is blown or not, in order to further ensure the accuracy of the judgment, in addition to maintaining the condition of a certain length of time, it can also be set to reduce the probability of misjudgment by several consecutive judgments and the uniformity of the results based on multiple judgments.
[0050] Strategy 2: The speed of the electronic fan is controlled by the PWM duty cycle requested by the VCU. The higher the duty cycle, the faster the speed and the greater the power. When the fuse blows, the electronic fan no longer works, causing the water temperature to rise rapidly. At this time, the VCU will send a request signal for the maximum output power of the electronic fan. The PWM duty cycle corresponding to the request will be increased from 10% to 50%. Under normal circumstances, the corresponding DCDC output total current will increase significantly at this time. Based on this principle, if after three consecutive requests to increase the PWM duty cycle, the average change of the DCDC total current within 5 seconds is detected to be <5A, then the electronic fan fuse is determined to be blown.
[0051] Afterwards, the cloud platform can push reminder information to the user through the in-vehicle wireless network terminal, alerting the user to pay attention to the fault and replace the fuse in time.
[0052] The aforementioned electronic water pump fuse blowing judgment strategy is similar to the aforementioned second strategy example of the electronic fan, with the difference being that the request signal is sent by the ECM and the electronic water pump has a greater power: for example, when the electronic water pump PWM duty cycle is increased from 10% to 50%, the total DCDC output current will rise to above 15A, and thus the judgment threshold can be set to 10A, instead of 5A in the aforementioned embodiment.
[0053] See also Figure 2 Based on the same inventive concept, the embodiment of the present application also provides a vehicle-mounted electrical appliance fuse ablation reminder device, the device comprising:
[0054] The vehicle-side signal acquisition module 201 is used to obtain in real time the preset electric control signal of the vehicle-mounted electrical appliances uploaded by the vehicle-side and the current measurement signal output by the DCDC;
[0055] The standard data retrieval module 202 is used to obtain a preset current threshold value corresponding to the current operating state according to the current operating state of the vehicle-mounted electrical appliance represented by the preset electric control signal;
[0056] The fuse burnout judgment module 203 is used to judge whether the fuse of the vehicle-mounted electrical appliance is blown based on the comparison result between the current measured current signal and the current threshold value;
[0057] The ablation reminder module 204 is used to push reminder information to the vehicle end after determining that the fuse has blown.
[0058] Based on the same inventive concept, the embodiment of the present application also provides an electronic device, including at least one processor, the processor is used to execute a computer program stored in a memory, and implement the flowchart steps of the above-mentioned vehicle electrical appliance fuse burnout reminder method provided in the embodiment of the present application. It can be understood that the electronic device is preferably a cloud server.
[0059] Optionally, the processor may specifically be a central processing unit, a specific ASIC, or one or more integrated circuits for controlling program execution.
[0060] Optionally, the electronic device may further include a memory connected to at least one processor, and the memory may include ROM, RAM, and disk storage. The memory is used to store data required by the processor when it is running, that is, it stores instructions that can be executed by at least one processor, and at least one processor executes the methods mentioned in the above embodiments by executing the instructions stored in the memory. Among them, the number of memories is one or more. Among them, the number of memories is one or more.
[0061] An embodiment of the present application also provides a computer storage medium, wherein the computer storage medium stores computer instructions. When the computer instructions are executed on a computer, the computer executes the methods mentioned in the above embodiments.
[0062] The above description is only a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this specification should be included in the scope of protection of this specification.
Claims
1. A method for reminding vehicle-mounted electrical appliance fuse burnout, characterized in that: The method comprises: Real-time acquisition of preset electric control signals of on-board electrical appliances uploaded by the vehicle end and actual current measurement signals output by DCDC; According to the current operating state of the on-board electrical appliance represented by the preset electric control signal, obtaining a preset current threshold value corresponding to the current operating state; Based on the comparison result between the current measured signal and the current threshold, it is determined whether the fuse of the vehicle electrical appliance is blown; After determining that the fuse has blown, a reminder message is pushed to the vehicle.
2. The vehicle-mounted electrical appliance fuse burnout reminder method according to claim 1, characterized in that: The method of comparing the current measurement signal with the current threshold includes: obtaining a current change average value of the current measurement signal within a predetermined time period, and comparing the current change average value with the current threshold.
3. The vehicle-mounted electrical appliance fuse burnout reminder method according to claim 1, characterized in that: The method for comparing the current measurement signal with the current threshold comprises: obtaining the current measurement signals corresponding to the operating state for a plurality of consecutive times, and comparing the plurality of current measurement signals with the current threshold.
4. The vehicle-mounted electrical appliance fuse burnout reminder method according to claim 1, characterized in that: The current threshold setting method includes: Pre-calibrate the total DCDC output current when the vehicle electrical appliances are in the operating state under normal working conditions where the fuse is not blown; The current threshold is set accordingly according to the calibrated total DCDC output current.
5. The vehicle-mounted electrical appliance fuse burnout reminder method according to claim 1, characterized in that: The pushing of reminder information to the vehicle terminal includes: Obtain the remaining operating time of the on-board electrical appliances estimated by the vehicle end; Based on the countdown of the remaining running time, the push frequency and / or push method of the reminder information are adjusted.
6. The vehicle-mounted electrical appliance fuse burnout reminder method according to any one of claims 1 to 5, characterized in that: The preset electric control signal includes: an operating gear position signal and / or a driving pulse signal requested by a vehicle control unit.
7. The vehicle-mounted electrical appliance fuse burnout reminder method according to any one of claims 1 to 5, characterized in that: The operating state includes any one of the following: switching of the operating gear of the vehicle-mounted electrical appliance and increasing the output power.
8. A vehicle-mounted electrical appliance fuse burnout reminder device, characterized in that: The device comprises: The vehicle-side signal acquisition module is used to obtain the preset electric control signals of the vehicle-mounted electrical appliances uploaded by the vehicle-side and the current measurement signals output by the DCDC in real time; A standard data retrieval module, used to obtain a preset current threshold value corresponding to the current operating state according to the current operating state of the vehicle-mounted electrical appliance represented by the preset electric control signal; A fuse burnout judgment module is used to judge whether the fuse of the vehicle electrical appliance is blown based on the comparison result between the current measured current signal and the current threshold value; The ablation reminder module is used to push reminder information to the vehicle end after determining that the fuse has blown.
9. An electronic device, characterized in that: include: One or more processors, a memory and one or more computer programs, wherein the one or more computer programs are stored in the memory, and the one or more computer programs include instructions, which, when executed by the electronic device, enable the electronic device to execute the vehicle-mounted electrical appliance fuse burnout reminder method as described in any one of claims 1 to 7.
10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the vehicle-mounted electrical appliance fuse burnout reminder method as claimed in any one of claims 1 to 7 is implemented.