CN115328072A - Vehicle state detection method, device, nonvolatile storage medium and vehicle - Google Patents
Vehicle state detection method, device, nonvolatile storage medium and vehicle Download PDFInfo
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Abstract
The invention discloses a vehicle state detection method and device, a nonvolatile storage medium and a vehicle. Wherein, the method comprises the following steps: obtaining a target ground impedance of an electronic controller in a target vehicle; determining a ground performance evaluation result of the electronic controller according to the target ground impedance, wherein the ground performance evaluation result comprises at least one of the following: the grounding performance is qualified, and the grounding performance is unqualified; and determining the vehicle state of the target vehicle according to the grounding performance evaluation result. The invention solves the technical problem that the vehicle state cannot be accurately judged because only the direct current resistance of the grounding wire is measured in the related technology.
Description
Technical Field
The invention relates to the field of measurement and control, in particular to a vehicle state detection method and device, a nonvolatile storage medium and a vehicle.
Background
In recent years, with technological progress, electronic controllers of vehicles are more and more, the complexity of electronic systems of vehicles is continuously improved, the requirement on electromagnetic compatibility among electronic devices in the systems is increasingly improved, the important point of the electromagnetic compatibility is the grounding performance of the controllers, good grounding can effectively improve the electromagnetic compatibility of the systems, and poor grounding can cause electromagnetic problems such as conduction, radiation emission, electrostatic damage and the like.
How to measure the grounding characteristic of an electronic controller of a vehicle, further evaluating the electromagnetic compatibility of the whole vehicle, and meeting corresponding design specifications, particularly under the condition that a system is more and more complex, the grounding performance is not only an important index of the electronic performance of the vehicle, but also a very important test item in the electromagnetic compatibility specification of the whole vehicle.
However, the milliohmmeter for grounding of the conventional vehicle measurement electronic controller can only test the direct current resistance of the grounding wire, but cannot measure the alternating current impedance of the grounding wire, so that the voltage drop caused by the alternating current component of the grounding wire cannot be evaluated, and the state of the vehicle cannot be accurately judged.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The embodiment of the invention provides a vehicle state detection method and device, a nonvolatile storage medium and a vehicle, and at least solves the technical problem that the vehicle state cannot be accurately judged because only the direct current resistance of a grounding wire is measured in the related technology.
According to an aspect of an embodiment of the present invention, there is provided a vehicle state detection method including: obtaining a target ground impedance of an electronic controller in a target vehicle; determining a ground performance evaluation result of the electronic controller according to the target ground impedance, wherein the ground performance evaluation result comprises at least one of the following: the grounding performance is qualified, and the grounding performance is unqualified; and determining the vehicle state of the target vehicle according to the grounding performance evaluation result.
In some embodiments of the present application, obtaining a target ground impedance of an electronic controller in a target vehicle comprises: determining vehicle identification information of a target vehicle; determining the type of a controller of the electronic controller according to the vehicle identification information; and acquiring the target grounding impedance of an electronic controller in the target vehicle according to the type of the controller.
In some embodiments of the present application, obtaining the target ground impedance of the electronic controller in the target vehicle, depending on the controller type, comprises: determining operating parameters of an impedance measuring device according to the type of the controller, wherein the impedance measuring device is used for measuring target grounding impedance of the electronic controller according to the operating parameters; and sending the working parameters to the impedance measuring equipment, and receiving the target grounding impedance returned by the impedance measuring equipment. In some embodiments of the application, the operating parameters include a start frequency and a stop frequency, wherein determining the operating parameters of the impedance measurement device, depending on the controller type, comprises: determining equipment parameters of the electronic controller according to the type of the controller; the start frequency and stop frequency of the impedance measuring device are determined in dependence on the device parameters.
In some embodiments of the present application, determining a ground performance evaluation result of the electronic controller based on the target ground impedance comprises: determining a value range of the grounding impedance corresponding to the electronic controller according to the working parameters, wherein the value range of the grounding impedance is the value range of the grounding impedance corresponding to the working state of the electronic controller which is a normal state; under the condition that the target grounding impedance is in the value range of the grounding impedance, determining that the grounding performance evaluation result of the electronic controller is unqualified; and determining that the grounding performance evaluation result of the electronic controller is qualified when the target grounding impedance is not in the value range of the grounding impedance.
In some embodiments of the present application, determining the vehicle state of the target vehicle in accordance with the ground contact performance evaluation result includes: determining the vehicle state of the target vehicle as a fault state under the condition that the grounding performance evaluation result is that the grounding performance is not qualified; and determining that the target vehicle state is a non-fault state when the grounding performance evaluation result indicates that the grounding performance is qualified.
According to another aspect of the embodiments of the present invention, there is also provided a vehicle state detection apparatus including: the detection module is used for acquiring a target grounding impedance of an electronic controller in a target vehicle; the processing module is used for determining a grounding performance evaluation result of the electronic controller according to the target grounding impedance, wherein the grounding performance evaluation result comprises at least one of the following: the grounding performance is qualified, and the grounding performance is unqualified; and the evaluation module is used for determining the vehicle state of the target vehicle according to the grounding performance evaluation result.
According to another aspect of the embodiments of the present invention, there is also provided a vehicle including a processor and an impedance measurement device, wherein the processor is configured to perform obtaining a target ground impedance of an electronic controller in a target vehicle; determining a grounding performance evaluation result of the electronic controller according to the target grounding impedance, wherein the grounding performance evaluation result comprises at least one of the following: the grounding performance is qualified, and the grounding performance is unqualified; determining the vehicle state of the target vehicle according to the grounding performance evaluation result; an impedance measurement device configured to measure a target ground impedance of the electronic controller.
According to another aspect of the embodiments of the present invention, there is also provided a nonvolatile storage medium including a stored program, wherein a device in which the nonvolatile storage medium is controlled to execute the vehicle state detection method when the program is executed.
According to another aspect of the embodiments of the present invention, there is also provided an electronic device, which includes a processor configured to execute a program, wherein the program executes to perform the vehicle state detection method.
In the embodiment of the invention, the target grounding impedance of an electronic controller in a target vehicle is obtained; determining a ground performance evaluation result of the electronic controller according to the target ground impedance, wherein the ground performance evaluation result comprises at least one of the following: the grounding performance is qualified, and the grounding performance is unqualified; the method for determining the vehicle state of the target vehicle according to the grounding performance evaluation result achieves the purposes of determining the grounding performance of the electronic controller according to the target grounding impedance and then determining the vehicle state according to the grounding performance by determining the target grounding impedance of the electronic controller in the target vehicle, thereby achieving the technical effect of comprehensively considering the alternating current component of the electronic controller in the vehicle when determining the vehicle state and further solving the technical problem that the vehicle state cannot be accurately determined due to the fact that only the direct current resistance of the grounding wire is measured in the related technology.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation of the invention. In the drawings:
FIG. 1 is a schematic flow chart diagram of a vehicle condition detection method according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a method for measuring ground impedance according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of another method for measuring ground impedance according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a ground impedance measurement scenario provided in accordance with an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a vehicle state detection apparatus provided according to an embodiment of the invention;
FIG. 6 is a schematic structural diagram of a vehicle according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a vehicle state detection system provided according to an embodiment of the invention;
fig. 8 is a schematic structural diagram of a computer device according to an embodiment of the present invention.
Detailed Description
The conventional vehicle grounding index is ohm (omega) as a unit, and the testing method is an ohmmeter and a milliohmmeter, but the ohm (omega) inside is that only direct current of a grounding wire is defaulted, so that the high risk is caused. Because the design of the vehicle electronic controller is more and more complex, the controlled object has a plurality of inductive and capacitive loads besides a pure resistive load, particularly under the conditions of transient driving and disconnection, the grounding wire has complex alternating current quantity, the traditional direct current resistance method cannot meet the requirement of electromagnetic compatibility of the whole vehicle, and the alternating current impedance of the grounding wire needs to be tested instead.
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in other sequences than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
In accordance with an embodiment of the present invention, there is provided a method embodiment of a vehicle condition detection method, it being noted that the steps illustrated in the flowchart of the drawings may be carried out in a computer system such as a set of computer-executable instructions, and that while a logical order is illustrated in the flowchart, in some cases, the steps illustrated or described may be carried out in an order different than presented herein.
Fig. 1 is a vehicle state detection method according to an embodiment of the present invention, as shown in fig. 1, the method including the steps of:
step S102, obtaining a target grounding impedance of an electronic controller in a target vehicle;
in some embodiments of the present application, when obtaining the target ground impedance of the electronic controller in the target vehicle, it is necessary to determine the controller type of the electronic controller in the target vehicle, wherein the functions and structures of the controllers of different controller types are different, and therefore the parameters of the measuring device are different when the ground impedance is measured by the controllers of different types. Specifically, the method for measuring the ground impedance shown in fig. 2 may be adopted when measuring the target impedance, and specifically includes the following steps:
step S202, determining vehicle identification information of a target vehicle;
in some embodiments of the present application, different vehicles each correspond to unique vehicle identification information, which is vehicle identification information.
Step S204, determining the type of a controller of the electronic controller according to the vehicle identification information;
specifically, the controller type of the electronic controller under the vehicle type can be determined by querying the database for the vehicle type corresponding to the vehicle identification information.
And step S206, acquiring the target grounding impedance of the electronic controller in the target vehicle according to the type of the controller.
In some embodiments of the present application, a specific method for obtaining the target ground impedance of the electronic controller in the target vehicle according to the controller type is shown in fig. 3, and includes the following steps:
step S302, determining working parameters of impedance measuring equipment according to the type of the controller, wherein the impedance measuring equipment is used for measuring target grounding impedance of the electronic controller according to the working parameters;
step S304, sending the operating parameter to the impedance measuring device, and receiving the target ground impedance returned by the impedance measuring device.
In some embodiments of the present application, the impedance measuring device may be a vector network analyzer, and the operating parameters include a start frequency and a stop frequency, wherein determining the operating parameters of the impedance measuring device according to the controller type includes: determining equipment parameters of the electronic controller according to the type of the controller; determining the start frequency and the stop frequency of the impedance measurement device in dependence on the device parameter.
In some embodiments of the present application, a scenario in which the target ground impedance is measured by an impedance measurement device is shown in fig. 4. As can be seen from fig. 4, the impedance measuring method provided in the present application can measure the ac impedance of the point controller, and is simple to operate, and only two ports of the vector network analyzer need to be connected to two ends of the ground circuit in the point controller, respectively.
Step S104, determining a grounding performance evaluation result of the electronic controller according to the target grounding impedance, wherein the grounding performance evaluation result comprises at least one of the following: the grounding performance is qualified, and the grounding performance is unqualified;
in some embodiments of the present application, determining a ground performance evaluation result of the electronic controller based on the target ground impedance comprises: determining a value range of the grounding impedance corresponding to the electronic controller according to the working parameters, wherein the value range of the grounding impedance is the value range of the grounding impedance corresponding to the working state of the electronic controller which is a normal state; under the condition that the target grounding impedance is in the value range of the grounding impedance, determining that the grounding performance evaluation result of the electronic controller is unqualified; and determining that the grounding performance evaluation result of the electronic controller is qualified when the target grounding impedance is not in the value range of the grounding impedance.
And step S106, determining the vehicle state of the target vehicle according to the grounding performance evaluation result.
In some embodiments of the present application, determining the vehicle state of the target vehicle from the ground contact performance evaluation result includes: determining the vehicle state of the target vehicle as a fault state under the condition that the grounding performance evaluation result is that the grounding performance is not qualified; and determining that the target vehicle state is a non-fault state when the grounding performance evaluation result indicates that the grounding performance is qualified.
Obtaining a target ground impedance of an electronic controller in a target vehicle; determining a ground performance evaluation result of the electronic controller according to the target ground impedance, wherein the ground performance evaluation result comprises at least one of the following: the grounding performance is qualified, and the grounding performance is unqualified; the method for determining the vehicle state of the target vehicle according to the grounding performance evaluation result achieves the purposes of determining the grounding performance of the electronic controller according to the target grounding impedance and then determining the vehicle state according to the grounding performance by determining the target grounding impedance of the electronic controller in the target vehicle, thereby achieving the technical effect of comprehensively considering the alternating current component of the electronic controller in the vehicle when determining the vehicle state and further solving the technical problem that the vehicle state cannot be accurately determined due to the fact that only the direct current resistance of the grounding wire is measured in the related technology.
According to the vehicle state detection method, direct current resistance is not directly measured, but alternating current impedance of the grounding wire is measured, alternating current voltage drop of the grounding wire can be accurately evaluated, whether error logic can be caused in the electronic controller or not is judged, grounding impedance is reduced by further improving a grounding method, the requirement for electromagnetic compatibility of the controller and the whole vehicle is met, and the electrical performance of the whole vehicle is improved. Specifically, assuming that the ground wire length L =0.3m of the electronic controller in the target vehicle, the vacuum permeability μ 0 ＝4π×10 -7 V.S.Am -1 Relative magnetic permeability mu r =1, sectional area S =1.0 × 10 of the wire -6 m 2 Frequency f =1.0 × 10 7 Hz, which is calculated according to the following formula:
substitution parameter, L =9.414 × 10 -8 (H)
From the above calculations, it can be seen that a 0.3 meter long 1 mm square wire has an impedance of 5.9 ohms at a frequency of 10MHz, while the dc condition is measured to be about 2 milliohms, which is seen to be sufficient to cause a logic level error of 5V when the wire has a few tens of milliamperes, resulting in a faulty behavior of the vehicle electronic controller. The vector network analyzer is used for visually and quickly measuring the actual impedance in practice, and alternating current impedance rather than direct current resistance is used for representing the electrical property of the electronic controller, so that the reliability of the vehicle electronic controller is correctly evaluated.
Example 2
According to an embodiment of the present invention, there is provided an apparatus embodiment of a vehicle state detecting apparatus. Fig. 5 is a schematic structural diagram of a vehicle state detection apparatus provided according to an embodiment of the present invention, and as shown in fig. 5, the apparatus includes: a detection module 50 for obtaining a target ground impedance of an electronic controller in a target vehicle; a processing module 52, configured to determine a ground performance evaluation result of the electronic controller according to the target ground impedance, where the ground performance evaluation result includes at least one of: the grounding performance is qualified, and the grounding performance is unqualified; and an evaluation module 54 for determining the vehicle state of the target vehicle according to the grounding performance evaluation result.
In some embodiments of the present application, the detection module 50 obtaining the target ground impedance of the electronic controller in the target vehicle includes: determining vehicle identification information of the target vehicle; determining the type of a controller of the electronic controller according to the vehicle identification information; and acquiring the target grounding impedance of an electronic controller in the target vehicle according to the type of the controller.
In some embodiments of the present application, the detecting module 50 obtaining the target ground impedance of the electronic controller in the target vehicle according to the controller type comprises: determining an operating parameter of an impedance measuring device according to the controller type, wherein the impedance measuring device is used for measuring a target ground impedance of the electronic controller according to the operating parameter; and sending the working parameters to the impedance measuring equipment, and receiving the target grounding impedance returned by the impedance measuring equipment.
In some embodiments of the present application, the operating parameters include a start frequency and a stop frequency, wherein the determining, by the detection module 50, the operating parameters of the impedance measuring device according to the controller type includes: determining equipment parameters of the electronic controller according to the type of the controller; determining the start frequency and the stop frequency of the impedance measurement device in dependence on the device parameter.
In some embodiments of the present application, the specific process of the processing module 52 determining the ground performance evaluation result of the electronic controller according to the target ground impedance includes: determining a value range of the grounding impedance corresponding to the electronic controller according to the working parameters, wherein the value range of the grounding impedance is the value range of the grounding impedance corresponding to the electronic controller when the working state is a normal state; under the condition that the target grounding impedance is within the value range of the grounding impedance, determining that the grounding performance evaluation result of the electronic controller is unqualified; and determining that the grounding performance evaluation result of the electronic controller is qualified when the target grounding impedance is not in the value range of the grounding impedance.
In some embodiments of the present application, the determining of the vehicle state of the target vehicle from the ground contact performance evaluation result by the evaluation module 54 comprises: determining the vehicle state of the target vehicle as a fault state under the condition that the grounding performance evaluation result is that the grounding performance is not qualified; and determining that the target vehicle state is a non-fault state when the grounding performance evaluation result indicates that the grounding performance is qualified.
It should be noted that the vehicle state detection apparatus provided in this embodiment can be used to execute the vehicle state detection method provided in embodiment 1, and therefore, the explanation about the vehicle state detection method in embodiment 1 is also applicable to the embodiment of this application, and is not described herein again.
Example 3
According to an embodiment of the invention, an embodiment of a vehicle is provided. Fig. 6 is a schematic structural diagram of a vehicle according to an embodiment of the present invention, as shown in fig. 6, the vehicle including: a processor 60 and an impedance measurement device 62, wherein the processor 60 is configured to perform the obtaining of a target ground impedance of an electronic controller in a target vehicle; determining a ground performance evaluation result of the electronic controller according to the target ground impedance, wherein the ground performance evaluation result comprises at least one of the following: the grounding performance is qualified, and the grounding performance is unqualified; determining the vehicle state of the target vehicle according to the grounding performance evaluation result; an impedance measurement device 62 configured to measure a target ground impedance of the electronic controller.
In some embodiments of the present application, the processor 60 obtaining the target ground impedance of the electronic controller in the target vehicle includes: determining vehicle identification information of the target vehicle; determining the type of a controller of the electronic controller according to the vehicle identification information; and acquiring the target grounding impedance of an electronic controller in the target vehicle according to the type of the controller.
In some embodiments of the present application, the processor 60 obtaining the target ground impedance of the electronic controller in the target vehicle as a function of the controller type includes: determining an operating parameter of an impedance measuring device according to the controller type, wherein the impedance measuring device is used for measuring a target ground impedance of the electronic controller according to the operating parameter; and sending the working parameters to the impedance measuring equipment, and receiving the target grounding impedance returned by the impedance measuring equipment.
In some embodiments of the present application, the operating parameters include a start frequency and a stop frequency, wherein the processor 60 determines the operating parameters of the impedance measurement device according to the controller type including: determining equipment parameters of the electronic controller according to the type of the controller; determining the start frequency and the stop frequency of the impedance measurement device in dependence on the device parameter.
In some embodiments of the present application, processor 60 determines a ground performance evaluation result of the electronic controller according to the target ground impedance, including: determining a value range of the grounding impedance corresponding to the electronic controller according to the working parameters, wherein the value range of the grounding impedance is the value range of the grounding impedance corresponding to the working state of the electronic controller which is a normal state; under the condition that the target grounding impedance is in the value range of the grounding impedance, determining that the grounding performance evaluation result of the electronic controller is unqualified; and determining that the grounding performance evaluation result of the electronic controller is qualified when the target grounding impedance is not in the value range of the grounding impedance.
In some embodiments of the present application, determining the vehicle state of the target vehicle from the ground contact performance evaluation result by processor 60 includes: determining the vehicle state of the target vehicle as a fault state under the condition that the grounding performance evaluation result is that the grounding performance is not qualified; and determining that the target vehicle state is a non-fault state when the grounding performance evaluation result indicates that the grounding performance is qualified.
It should be noted that the vehicle provided in the embodiment of the present application may be used to execute the vehicle state detection method provided in embodiment 1, and therefore, the explanation about the vehicle detection method shown in embodiment 1 is also applicable to the embodiment of the present application, and is not described herein again.
According to the embodiment of the invention, the invention also provides a system embodiment of the vehicle state monitoring system. Fig. 7 shows a vehicle state monitoring system provided in an embodiment of the present invention, which includes a vehicle 70, an impedance measuring device 72, and a server 74, as shown in fig. 7. The method executed by the server 74 is the same as the processor 60 in the vehicle shown in fig. 6, and therefore, the description thereof is omitted.
Example 4
According to an embodiment of the present invention, there is also provided an embodiment of a nonvolatile storage medium. The nonvolatile storage medium includes a stored program, wherein the apparatus in which the nonvolatile storage medium is controlled at the time of execution of the program performs the following vehicle state detection method: obtaining a target ground impedance of an electronic controller in a target vehicle; determining a grounding performance evaluation result of the electronic controller according to the target grounding impedance, wherein the grounding performance evaluation result comprises at least one of the following: the grounding performance is qualified, and the grounding performance is unqualified; and determining the vehicle state of the target vehicle according to the grounding performance evaluation result.
According to the embodiment of the invention, the embodiment of the electronic equipment is also provided. The electronic device comprises a processor for executing a program, wherein the program executes the following vehicle state detection method when running: obtaining a target ground impedance of an electronic controller in a target vehicle; determining a ground performance evaluation result of the electronic controller according to the target ground impedance, wherein the ground performance evaluation result comprises at least one of the following: the grounding performance is qualified, and the grounding performance is unqualified; and determining the vehicle state of the target vehicle according to the grounding performance evaluation result.
According to the embodiment of the invention, the embodiment of the computer equipment is also provided. Fig. 8 is a schematic structural diagram of a computer device according to an embodiment of the present invention.
In an exemplary embodiment, a computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 802 of the electronic device to perform the following vehicle state detection method is also provided: : obtaining a target ground impedance of an electronic controller in a target vehicle; determining a ground performance evaluation result of the electronic controller according to the target ground impedance, wherein the ground performance evaluation result comprises at least one of the following: the grounding performance is qualified, and the grounding performance is unqualified; and determining the vehicle state of the target vehicle according to the grounding performance evaluation result. Alternatively, the storage medium may be a non-transitory computer readable storage medium, which may be, for example, a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technical content can be implemented in other manners. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A vehicle state detection method characterized by comprising:
obtaining a target ground impedance of an electronic controller in a target vehicle;
determining a ground performance evaluation result of the electronic controller according to the target ground impedance, wherein the ground performance evaluation result comprises at least one of: the grounding performance is qualified, and the grounding performance is unqualified;
and determining the vehicle state of the target vehicle according to the grounding performance evaluation result.
2. The vehicle state detection method according to claim 1, wherein obtaining the target ground impedance of the electronic controller in the target vehicle includes:
determining vehicle identification information of the target vehicle;
determining the type of a controller of the electronic controller according to the vehicle identification information;
and acquiring the target grounding impedance of an electronic controller in the target vehicle according to the type of the controller.
3. The vehicle state detection method according to claim 2, wherein obtaining a target ground impedance of an electronic controller in the target vehicle in accordance with the controller type includes:
determining an operating parameter of an impedance measuring device according to the controller type, wherein the impedance measuring device is used for measuring a target grounding impedance of the electronic controller according to the operating parameter;
and sending the working parameters to the impedance measuring equipment, and receiving the target grounding impedance returned by the impedance measuring equipment.
4. The vehicle state detection method according to claim 3, wherein the operating parameters include a start frequency and a stop frequency, and wherein determining the operating parameters of the impedance measuring device according to the controller type includes:
determining equipment parameters of the electronic controller according to the type of the controller;
determining the start frequency and the stop frequency of the impedance measurement device in dependence on the device parameter.
5. The vehicle state detection method according to claim 3, wherein determining a ground performance evaluation result of the electronic controller in accordance with the target ground impedance includes:
determining a value range of the grounding impedance corresponding to the electronic controller according to the working parameters, wherein the value range of the grounding impedance is the value range of the grounding impedance corresponding to the working state of the electronic controller which is a normal state;
under the condition that the target grounding impedance is in the value range of the grounding impedance, determining that the grounding performance evaluation result of the electronic controller is unqualified; and (c) a second step of,
and under the condition that the target grounding impedance is not in the value range of the grounding impedance, determining that the grounding performance evaluation result of the electronic controller is qualified.
6. The vehicle state detection method according to claim 5, wherein determining the vehicle state of the target vehicle in accordance with the ground contact performance evaluation result includes:
determining the vehicle state of the target vehicle as a fault state under the condition that the grounding performance evaluation result is that the grounding performance is not qualified; and the number of the first and second groups,
and under the condition that the grounding performance evaluation result is that the grounding performance is qualified, determining that the target vehicle state is a non-fault state.
7. A vehicle state detection device characterized by comprising:
the detection module is used for acquiring a target grounding impedance of an electronic controller in a target vehicle;
a processing module, configured to determine a ground performance evaluation result of the electronic controller according to the target ground impedance, where the ground performance evaluation result includes at least one of: the grounding performance is qualified, and the grounding performance is unqualified;
and the evaluation module is used for determining the vehicle state of the target vehicle according to the grounding performance evaluation result.
8. A vehicle comprising a processor and an impedance measurement device, wherein,
the processor configured to perform obtaining a target ground impedance of an electronic controller in a target vehicle; determining a ground performance evaluation result of the electronic controller according to the target ground impedance, wherein the ground performance evaluation result comprises at least one of the following: the grounding performance is qualified, and the grounding performance is unqualified; determining the vehicle state of the target vehicle according to the grounding performance evaluation result;
the impedance measurement device configured to measure the target ground impedance of the electronic controller.
9. A non-volatile storage medium, characterized in that the non-volatile storage medium includes a stored program, wherein a device in which the non-volatile storage medium is located is controlled to execute the vehicle state detection method according to any one of claims 1 to 6 when the program is executed.
10. An electronic device comprising a processor, wherein the processor is configured to run a program, wherein the program is configured to execute the vehicle state detection method according to any one of claims 1 to 6 when the program is run.
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