CN114167191A - Automobile power converter detection method and system and computer equipment - Google Patents
Automobile power converter detection method and system and computer equipment Download PDFInfo
- Publication number
- CN114167191A CN114167191A CN202111543082.0A CN202111543082A CN114167191A CN 114167191 A CN114167191 A CN 114167191A CN 202111543082 A CN202111543082 A CN 202111543082A CN 114167191 A CN114167191 A CN 114167191A
- Authority
- CN
- China
- Prior art keywords
- power converter
- target
- automobile
- automobile power
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 100
- 238000012360 testing method Methods 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 28
- 230000003044 adaptive effect Effects 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims description 45
- 239000003990 capacitor Substances 0.000 claims description 13
- 230000004913 activation Effects 0.000 claims description 11
- 238000004088 simulation Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 11
- 238000007689 inspection Methods 0.000 abstract description 4
- 238000004891 communication Methods 0.000 description 7
- 238000003745 diagnosis Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000012795 verification Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000009007 Diagnostic Kit Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
- G01R31/007—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks using microprocessors or computers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
Abstract
The application is suitable for the technical field of automobile detection, and provides a detection method, a detection system and computer equipment for an automobile power converter, which are used for solving the technical problem that in the prior art, the inspection and the maintenance of the automobile power converter can be completed only by continuously detaching and installing the automobile power converter from an automobile, and the efficiency of the maintenance work of the automobile power converter is improved. The method of the present application mainly comprises: determining a target model of a target automobile power converter corresponding to the target automobile according to the target automobile identification code; simulating the working condition of the target automobile to generate a test signal adaptive to the power converter of the target automobile; sending the test signal to the target automobile power converter to enable the target automobile power converter to generate a corresponding feedback signal; and receiving and analyzing the feedback signal to obtain a user readable performance parameter as a detection result of the target automobile power converter.
Description
Technical Field
The application belongs to the technical field of automobile detection, and particularly relates to a method and a system for detecting an automobile power converter and computer equipment.
Background
With the gradual development of new energy automobiles, new energy automobiles are more and more in society, and an automobile power converter is configured on the new energy automobiles and used for converting the output voltage of an automobile storage battery into the working voltage of vehicle-mounted equipment so as to realize the normal work of various vehicle-mounted equipment in the new energy automobiles.
However, in the prior art, when the vehicle power converter fails and needs to be maintained, the vehicle power converter is often required to be detached from the vehicle for inspection and maintenance, and then the vehicle power converter is newly installed in the vehicle for test and verification.
Therefore, in the prior art, the automobile power converter needs to be continuously detached from and installed on an automobile to complete the inspection and maintenance verification of the automobile power converter, and the efficiency of the maintenance work of the automobile power converter is greatly influenced.
Disclosure of Invention
The application provides a detection method, a detection system and computer equipment for an automobile power converter, which are used for solving the technical problem that in the prior art, the inspection and maintenance of the automobile power converter can be completed only by continuously dismounting and mounting the automobile power converter from an automobile, and the efficiency of the maintenance work of the automobile power converter is improved.
In a first aspect, the present application provides a method for detecting a power converter of an automobile, including:
determining a target model of a target automobile power converter corresponding to the target automobile according to the target automobile identification code;
simulating the working condition of the target automobile to generate a test signal adaptive to the power converter of the target automobile;
sending the test signal to the target automobile power converter to enable the target automobile power converter to generate a corresponding feedback signal;
and receiving and analyzing the feedback signal to obtain a user readable performance parameter as a detection result of the target automobile power converter.
Optionally, the determining the target model of the target vehicle power converter corresponding to the target vehicle according to the target vehicle identification code includes:
determining a target model of the target automobile power converter in a preset database according to the target vehicle identification code, wherein the preset database stores a plurality of vehicle identification codes, a plurality of automobile power converter models and a corresponding relation between the vehicle identification code and the automobile power converter models, the target model is one of the automobile power converter models, and the target vehicle identification code is one of the vehicle identification codes.
Optionally, the method further includes:
receiving a vehicle identification code of the target automobile input by a user;
determining the automobile model of the target automobile according to the vehicle identification code of the target automobile;
determining the model of a corresponding automobile power converter according to the automobile model of the target automobile; simulating an activation signal corresponding to the model of the automobile power converter to try to start the target automobile power converter of the target automobile;
if the target automobile power converter is successfully started, reading relevant information of the target automobile power converter, wherein the relevant information comprises the target model of the target automobile power converter;
judging whether the model of the automobile power converter is consistent with the target model;
if the model of the automobile power converter is consistent with the target model, judging that the model of the automobile power converter is correct;
if the model of the automobile power converter is inconsistent with the target model, the vehicle identification code of the target automobile and the automobile model of the target automobile are stored in the preset database in an associated mode;
and if the target automobile power converter is not started successfully, prompting the vehicle identification code of the target automobile to be input again, and triggering and executing the step of receiving the vehicle identification code of the target automobile input by the user.
Optionally, the method further includes:
starting a self-checking program to detect the insulation performance of the automobile power converter;
judging whether the insulation performance of the automobile power converter meets a preset insulation performance standard or not;
if the insulation performance of the automobile power converter meets a preset insulation performance standard, triggering and executing a step of simulating the working condition of the target automobile to generate a test signal of the target automobile power converter matched with the target model;
and if the insulation performance of the automobile power converter does not meet the preset insulation performance standard, warning is given.
Optionally, the method further includes:
determining that the target vehicle power converter is in an off state;
sending an internal resistance detection signal to the target automobile power converter in the closed state, and receiving an internal resistance feedback signal of the target automobile power converter in the closed state;
judging whether the internal resistance feedback signal meets a preset internal resistance standard or not;
if the internal resistance feedback signal meets a preset internal resistance standard, triggering and executing the step of sending the test signal to the target automobile power converter;
and if the internal resistance feedback signal does not meet the preset internal resistance standard, warning is sent.
Optionally, the method further includes:
and discharging the electric energy stored in the high-voltage capacitor in the target automobile power converter so as to enable the electric energy stored in the high-voltage capacitor to reach a preset safety standard.
Optionally, the method further includes:
and executing code clearing on the target automobile power converter.
Optionally, the method further includes:
and comparing and analyzing the detection result with a preset corresponding standard to form a detection report.
In a second aspect, the present application provides a power converter detection system for an automobile, comprising:
the determining unit is used for determining a target model of a target automobile power converter corresponding to the target automobile according to the target automobile identification code;
the simulation unit is used for simulating the working condition of the target automobile and generating a test signal adaptive to the power converter of the target automobile;
the transmitting unit is used for transmitting the test signal to the target automobile power converter to enable the target automobile power converter to generate a corresponding feedback signal;
and the receiving unit is used for receiving and analyzing the feedback signal to obtain a user readable performance parameter as a detection result of the target automobile power converter.
In a third aspect, the present application provides a computer device comprising:
the system comprises a processor, a memory, a bus, an input/output interface and a wireless network interface;
the processor is connected with the memory, the input/output interface and the wireless network interface through a bus;
the memory has a computer readable program stored therein;
the processor, when executing the computer readable program stored in the memory, implements any of the foregoing automotive power converter detection methods.
Therefore, the automobile power converter can be checked and maintained by the automobile power converter detection method through the automobile power converter detection system only by detaching the automobile power converter from the automobile once, the automobile power converter can be reinstalled on the automobile until the automobile power converter is detected to be passed, the processes of detaching, checking and maintaining, loading checking and continuous cyclic dismounting of the automobile power converter in the prior art are avoided, and the efficiency of the maintenance work of the automobile power converter is greatly improved.
Drawings
FIG. 1 is a schematic flow chart diagram illustrating an exemplary embodiment of a method for detecting a power converter of an automobile according to the present disclosure;
FIG. 2 is a schematic flow chart illustrating another exemplary embodiment of a method for detecting a power converter of an automobile according to the present invention;
FIG. 3 is a schematic flow chart illustrating another exemplary embodiment of a method for detecting a power converter of an automobile according to the present invention;
FIG. 4 is a schematic flow chart illustrating another exemplary embodiment of a method for detecting a power converter of an automobile according to the present application;
FIG. 5 is a schematic flow chart illustrating another exemplary embodiment of a method for detecting a power converter of an automobile according to the present application;
FIG. 6 is a schematic structural diagram illustrating an exemplary embodiment of a power converter detection system of an automobile according to the present disclosure;
FIG. 7 is a schematic diagram of an embodiment of a vehicle power converter detection system connected to a vehicle power converter according to the present application;
FIG. 8 is a schematic structural diagram of an embodiment of a computer device according to the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Referring to fig. 7, an automotive power converter in the embodiment of the present application refers to a DC-DC module, an AC-DC module, or a DC-AC module applied to an automobile. The DC-DC module is a high voltage DC power supply voltage reduction DC power supply (DC-DC) module, the AC-DC module is an alternating current power supply to direct current power supply module, and the DC-AC module is a direct current power supply to alternating current power supply module. The automobile power converter detection system mainly comprises a diagnostic instrument and an automobile power converter diagnostic tool box, wherein the diagnostic instrument is mainly used for recording and analyzing feedback data of the automobile power converter, and the automobile power converter diagnostic tool box is mainly used for sending a test signal generated by simulating a working condition to the automobile power converter. It can be understood that the detection system of the automotive power converter needs the power module to provide the matched working voltage for the diagnostic tool box of the automotive power converter, for example, the power module can convert the power module into the matched working voltage for the detection system of the automotive power converter according to the electricity utilization standards of different countries or regions; the diagnostic instrument can be integrated with the diagnostic tool box of the automobile power converter, or the diagnostic instrument and the diagnostic tool box of the automobile power converter are in communication connection through a wireless network (such as Bluetooth, WiFi and the like) or a wired network (such as a vehicle communication interface, an optical fiber and the like), so that the diagnostic instrument can obtain feedback data of the automobile power converter and various test data of the diagnostic tool box of the automobile power converter through the diagnostic tool box of the automobile power converter; when the diagnostic instrument is connected with the diagnostic tool box of the automobile power converter through a wireless network, the diagnostic instrument can adopt a power supply mode with a mobile power supply, so that a user can conveniently operate the diagnostic instrument in a wireless beam constraint environment; the automobile power converter diagnosis tool box directly simulates the automobile environment and is connected with the automobile power converter, and is used for sending a test signal generated by simulating a working condition to the automobile power converter and constantly receiving various feedbacks of the automobile power converter under the test signal, such as: when the automobile power converter is a DC-DC module, the automobile power converter detection system is connected with a low-voltage wire harness interface of the automobile power converter through a low-voltage wire harness, and the low-voltage wire harness is mainly connected with related low-voltage signals of a power supply, grounding, CAN communication, LIN communication and the like of the automobile power converter; the system is connected with a 12V load line interface of an automobile power converter through a 12V (volt) low-voltage load line; the high-voltage input line is connected with the high-voltage input interface of the automobile power converter, the inverter and the transformer are arranged in the automobile power converter diagnosis tool box, the power supply of the power module can be simulated into corresponding high-voltage output according to different automobile models, and the corresponding high-voltage output is output to the direct-current high-voltage interface of the automobile power converter through the high-voltage input line. That is to say, in the embodiment of the present application, the vehicle power converter is only required to be detached from the vehicle once, and then the vehicle power converter is correspondingly connected to the vehicle power converter diagnostic kit in a matching manner, so that the vehicle power converter detection method of the embodiment of the present application can be used to complete the checking and maintenance verification of the vehicle power converter until the vehicle power converter is detected to be passed, and then the vehicle power converter is reinstalled on the vehicle; the following embodiments are provided for the detection process of the automotive power converter.
Based on the hardware basis, please refer to fig. 1, an embodiment of the method for detecting a power converter of an automobile according to the present application includes:
101. and determining the target model of the target automobile power converter corresponding to the target automobile according to the target automobile identification code.
Because the automobile is a mature product, in an automobile database with relevant automobile data, the relevant data of the automobile can be inquired through an automobile Identification code, and the automobile Identification code can be a unique Identification such as a Vehicle Identification Number (VIN). The target model of the corresponding target automobile power converter can be determined in the preset database according to the target vehicle identification code, so that the parameters of the target automobile power converter can be known in the subsequent steps according to the target model of the target automobile power converter, and further, how to control and use the automobile power converter can be known. The preset database stores a plurality of vehicle identification codes, a plurality of automobile power converter models and the corresponding relation between the vehicle identification codes and the automobile power converter models, wherein the target model is one of the automobile power converter models, and the target vehicle identification codes are one of the vehicle identification codes. Similarly, as a mature product, the description and the operation guidance of the automotive power converter can be found in the existing automotive power converter database.
102. And simulating the working condition of the target automobile to generate a test signal of the target automobile power converter matched with the target model.
After the target model of the target vehicle power converter is determined, this step may simulate the operating conditions of the target vehicle to generate a test signal matching the target model of the vehicle power converter, where the operating conditions of the target vehicle include, but are not limited to: starting the automobile, various running modes of the automobile, parking the automobile, failure of the automobile and the like. It can be understood that under different working conditions, the control signals issued by the target vehicle to the vehicle power converter may be different, so that the vehicle power converter outputs different power energy sources to the target vehicle according to different control signals, and the target vehicle exhibits different performances. In the step, the automobile power converter detection system can simulate various control signals of a target automobile as test signals.
103. And sending a test signal to the target automobile power converter so that the target automobile power converter generates a corresponding feedback signal.
Sending the test signal generated in step 102 to the target vehicle power converter will make the target vehicle power converter mistakenly assume that the test signal is the same as the test signal installed in the target vehicle, and the target vehicle power converter will make a corresponding feedback signal for the test signal, so that the target vehicle environment is simulated in the non-target vehicle environment, and the target vehicle power converter makes a corresponding feedback signal according to the test signal.
104. And receiving and analyzing the feedback signal to obtain a user readable performance parameter as a detection result of the target automobile power converter.
And receiving the feedback signal of the target automobile power converter in the step 103, analyzing and converting the feedback signal, and converting information correspondingly expressed by the feedback signal into a user-readable performance parameter, namely a detection result. For example, the feedback signal is converted into various user-readable performance parameters according to a preset reference standard, and the performance parameters are detection results.
Therefore, the automobile power converter can be checked and maintained by the automobile power converter detection method through the automobile power converter detection system only by detaching the automobile power converter from the automobile once, the automobile power converter can be reinstalled on the automobile until the automobile power converter is detected to be passed, the processes of detaching, checking and maintaining, loading verification and continuous cyclic dismounting of the automobile power converter in the prior art are avoided, and the efficiency of the maintenance work of the automobile power converter is greatly improved.
Referring to fig. 2, before step 101 of the embodiment of fig. 1, the embodiment correctly matches the target model of the target vehicle power converter, and associates the target model of the target vehicle power converter with the corresponding vehicle model of the target vehicle, so as to enrich the data of the preset database; the detection method for the automobile power converter further comprises the following steps:
201. and receiving the vehicle identification code of the target automobile input by the user.
The user in this step refers to an operator of the car power converter detection system, and since the car power converter detached from the target car may not be able to determine its model from the appearance, but the car identification code of the target car is determinable with a high probability, the user can receive the car identification code of the target car input or selected by the user in this step. Specifically, a Vehicle Identification code of a target Vehicle input or selected by a user may be received by a diagnostic apparatus of the Vehicle power converter detection system or a Vehicle power converter diagnostic tool kit, where the Vehicle Identification code may be a unique identifier such as a Vehicle frame Identification Number (VIN).
202. And determining the automobile model of the target automobile according to the vehicle identification code of the target automobile.
The vehicle model of the target vehicle is determined by the vehicle identification code of the target vehicle in step 201. It can be understood that the vehicle identification code of the target vehicle is unique, and the vehicle model corresponding to the vehicle identification code of the target vehicle can be inquired and determined through a vehicle database of existing vehicle related data.
203. And determining the model of the corresponding automobile power converter according to the automobile model of the target automobile.
In the automobile database of the existing automobile-related data, which automobile power converters of the corresponding models are used by the automobile of the model can be queried according to the automobile model of the target automobile in step 202, and then the model of the automobile power converter corresponding to the automobile model of the target automobile can be determined.
204. An activation signal corresponding to the model of the analog automotive power converter attempts to start a target automotive power converter of a target automotive.
After the model of the vehicle power converter is determined in step 203, the description and the operation guidance of the vehicle power converter can be found in the vehicle power converter database, and this step can realize that the activation signal corresponding to the model of the vehicle power converter is simulated to try to start the target vehicle power converter of the target vehicle, so as to determine the true model identity of the target vehicle power converter.
205. And if the target automobile power converter is successfully started, reading relevant information of the target automobile power converter, wherein the relevant information comprises a target model of the target automobile power converter.
It is understood that if the activation signal in step 204 can start the target vehicle power converter, the information related to the target vehicle power converter can be read successfully to know the real target model of the target vehicle power converter.
206. Judging whether the model of the automobile power converter is consistent with the target model, if so, executing step 207; if the model of the vehicle power converter is not consistent with the target model, step 208 is executed.
Since different models of automotive power converters may use the same activation signal, the fact that the activation signal can activate the target automotive power converter does not mean that the model of automotive power converter determined in step 203 is correct. Therefore, the step further determines whether the model of the vehicle power converter determined in step 203 is consistent with the real target model obtained in step 205, and if the model of the vehicle power converter is consistent with the target model, it indicates that the model of the vehicle power converter determined in step 203 is correct; if the model of the car power converter is not the same as the target model, it indicates that the model of the car power converter determined in step 203 is wrong, and the activation signals of the two models of car power converters are the same.
207. And judging that the model of the automobile power converter is correct.
208. And storing the target model, the vehicle identification code of the target vehicle and the vehicle model of the target vehicle in a preset database in an associated manner.
When the model of the vehicle power converter determined in step 206 is not consistent with the target model, it indicates that the model of the vehicle power converter determined in step 203 is wrong, and the activation signals of the two models of vehicle power converters are identical, at this time, this step needs to record the situation in the preset database, so as to enrich the data in the preset database. Specifically, the target model, the vehicle identification code of the target vehicle and the vehicle model of the target vehicle are stored in a preset database in an associated mode.
209. And if the target automobile power converter is not started successfully, prompting to input the vehicle identification code of the target automobile again.
It is understood that if the activation signal in step 204 fails to activate the target vehicle power converter, it proves that the model of the vehicle power converter determined in step 203 is wrong, or the target vehicle has replaced the vehicle power converter, and this step triggers step 201 to prompt the vehicle identification code of the target vehicle to be input again.
As can be seen, after the embodiment of fig. 2 is performed, in step 207, it can be ensured that the target model of the target vehicle power converter corresponding to the target vehicle is accurate, and the identified new target model of the new target vehicle power converter can be associated with the vehicle model of the corresponding target vehicle, so as to enrich the data of the preset database.
Referring to fig. 3, after step 101 and before step 102 in the embodiment of fig. 1, for a new energy vehicle with a DC-DC power converter, for example: the direct output voltage of the storage battery voltage of the new energy electric vehicle can reach 300 volts to 800 volts, and is even higher; the automobile power converter adaptive to the storage battery needs to work in the face of such high voltage, corresponding working conditions need to be simulated to test the automobile power converter during testing, in order to guarantee the safety of the testing process and avoid the risk caused by high-voltage breakdown, the insulation performance of the hardware of the automobile power converter detection system needs to be detected before the automobile power converter is tested, and particularly the insulation performance of the automobile power converter diagnosis tool box is detected, and the automobile power converter module detection method can further comprise the following steps:
301. and starting a self-checking program to check the insulation performance of the automobile power converter checking system.
It will be appreciated that the vehicle power converter module detection system has stored therein a self-test program for checking itself prior to detection of the target vehicle power converter. For example, the self-checking program checks whether the communication of the vehicle power converter checking system is smooth, the insulation performance is normal, etc. The step of detecting the insulation performance of the detection system of the automobile power converter can be obtained according to the working principle of a megohmmeter, for example, a preset voltage U is input to high-voltage components (an inverter, a transformer and the like in a diagnosis tool box of the automobile power converter) of the detection system of the automobile power converter1Detecting its current I1Through U1Is divided by I1To obtain the resistance value R1By resistance R1The insulation performance of the automobile power converter detection system is expressed.
302. Judging whether the insulation performance of the automobile power converter detection system meets a preset insulation performance standard, and executing a step 303 if the insulation performance of the automobile power converter detection system meets the preset insulation performance standard; if the insulation performance of the automotive power converter detection system does not meet the preset insulation performance standard, step 304 is executed.
Comparing the insulation performance of the detection system of the automobile power converter detected in the step 301 with a preset insulation performance standard, and further judging whether the insulation performance of the detection system of the automobile power converter meets the preset insulation performance standard, wherein the preset insulation performance standard has different requirements for different voltage ranges, and can be set according to actual conditions in practical application, and the preset insulation performance standard is not limited herein; if the insulation performance of the automobile power converter detection system meets the preset insulation performance standard, the automobile power converter detection system can perform analog test on a target automobile power converter; if the insulation performance of the automobile power converter detection system cannot meet the preset insulation performance standard, the automobile power converter detection system cannot perform analog test on the target automobile power converter, and danger exists.
303. And triggering and executing the step of simulating the working condition of the target automobile to generate a test signal of the target automobile power converter matched with the target model.
Specifically, step 102 in fig. 1 is triggered to be executed.
304. A warning is issued.
Since the step 302 determines that the insulation performance of the detection system of the automobile power converter cannot meet the preset insulation performance standard, which indicates that the detection system of the automobile power converter cannot perform the analog test on the target automobile power converter and is dangerous, this step sends out a warning to remind a user that the analog test on the target automobile power converter cannot be performed, and the detection system of the automobile power converter should be adjusted to eliminate the risk.
In addition, referring to fig. 4, after step 102 and before step 103 in the embodiment of fig. 1, the internal resistance of the target automotive power converter needs to be detected to prevent the target automotive power converter in a fault state such as a short circuit from generating a large current to burn out the automotive power converter detection system during the test, and the automotive power converter detection method of the present application may further include the following steps:
401. determining that the target automotive power converter is in an off state.
The internal resistance of the target automobile power converter in the off state has reference property relative to comparison, and the step can send an off signal to the target automobile power converter, so that the target automobile power converter is controlled by the off signal and is in the off state.
402. And sending an internal resistance detection signal to the target automobile power converter in the closed state, and receiving an internal resistance feedback signal of the target automobile power converter in the closed state.
Specifically, for example: the automobile power converter diagnosis tool box measures the resistance value of a high-voltage component of a target automobile power converter through a high-voltage input line; automobile power supply converter diagnosis tool box measures target automobile through 12V load lineThe resistance value of a 12V load line interface conversion part of the power converter; the automobile power converter diagnosis tool box measures the resistance value of a low-voltage line interface conversion part of a target automobile power converter through a low-voltage line; the resistance values can be all obtained by applying a certain preset voltage U2Detecting its current I2Through U2Is divided by I2To obtain the resistance value R2。
403. Judging whether the internal resistance feedback signal meets a preset internal resistance standard, if so, executing a step 404; if the internal resistance feedback signal does not meet the preset internal resistance standard, step 405 is executed.
Comparing the internal resistance feedback signal received in the step 402 with a preset internal resistance standard, and further judging whether the internal resistance feedback signal meets the preset internal resistance standard, wherein the preset internal resistance standard has different standard range requirements for different functional regions, and can be set according to actual conditions in practical application, and the preset internal resistance standard is not limited; if the internal resistance feedback signal meets the preset internal resistance standard, the detection system of the automobile power converter can send a test signal to the target automobile power converter; if the internal resistance feedback signal cannot meet the preset internal resistance standard, the detection system of the automobile power converter cannot send a test signal to the target automobile power converter, and danger exists.
404. Triggering execution of the step of sending the test signal to the target automotive power converter.
Specifically, step 103 in fig. 1 is triggered to be executed.
405. A warning is issued.
Since it is determined in step 403 that the internal resistance feedback signal of the automotive power converter cannot meet the preset internal resistance standard, it indicates that the automotive power converter detection system cannot send a test signal to the target automotive power converter, and there is a danger. Therefore, the step sends out warning to remind a user that the simulation test on the target automobile power supply converter cannot be carried out, and the target automobile power supply converter is required to be maintained and adjusted to eliminate risks.
In addition, referring to fig. 5, after step 104 in the embodiment of fig. 1, the method for detecting the automotive power converter of the application may further include the following steps:
501. and the electric energy stored in the high-voltage capacitor in the discharged target automobile power converter is used for enabling the electric energy stored in the high-voltage capacitor to reach the preset safety standard.
In the process of testing the target automobile power converter in step 103, relevant internal functions of the target automobile power converter are tested through a high-voltage input interface of the target automobile power converter, electric energy is stored in a high-voltage capacitor of the target automobile power converter, and in order to avoid hurting people in the process of releasing the electric energy from the high-voltage capacitor of the target automobile power converter, in this step, after a detection result is formed in step 104, the electric energy of the high-voltage capacitor of the target automobile power converter needs to be released, so that the electric energy stored in the high-voltage capacitor reaches a preset safety standard. Specifically, a high-voltage release circuit may be disposed in a diagnostic tool box of the automotive power converter in the automotive power converter detection system, and a bleeder resistor in the high-voltage release circuit is used to consume electric energy of the high-voltage capacitor.
502. And executing code clearing on the target automobile power converter.
All operation records of the target automobile power converter can be recorded in a log module of the target automobile power converter, including fault records, and under the condition that the fault records exist in the log module, the target automobile power converter can sometimes think that the target automobile power converter is in a fault state and cannot execute normal working procedures.
503. And comparing and analyzing the detection result with a preset corresponding standard to form a detection report.
In this step, each performance parameter in the detection result of step 104 is mainly compared with a corresponding standard to form a detection report (e.g., a PDF version electronic report), and the detection report may also be output to a designated mailbox for the user to review and make a decision.
Therefore, the method for detecting the automobile power converter can find the fault only by operating step by step according to the prompt of the automobile power converter detection system when a user suspects that the automobile power converter is in fault, and further can solve the fault pertinently, finally test of the automobile power converter is completed, and the threshold for detecting the automobile power converter is greatly reduced.
The foregoing embodiment describes the detection method of the automotive power converter, and the following describes the detection system of the automotive power converter, please refer to fig. 6, which includes:
the determining unit 601 is used for determining a target model of a target automobile power converter corresponding to a target automobile according to the target automobile identification code;
a simulation unit 602, configured to simulate a working condition of the target vehicle and generate a test signal adapted to the target vehicle power converter;
a sending unit 603, configured to send the test signal to the target automotive power converter, so that the target automotive power converter generates a corresponding feedback signal;
and the receiving unit 604 is configured to receive and analyze the feedback signal to obtain a user-readable performance parameter as a detection result of the target vehicle power converter.
Optionally, when determining the target model of the target vehicle power converter corresponding to the target vehicle according to the target vehicle identification code, the determining unit 601 is specifically configured to:
determining a target model of the target automobile power converter in a preset database according to the target vehicle identification code, wherein the preset database stores a plurality of vehicle identification codes, a plurality of automobile power converter models and a corresponding relation between the vehicle identification code and the automobile power converter models, the target model is one of the automobile power converter models, and the target vehicle identification code is one of the vehicle identification codes.
Optionally, the system further includes:
the receiving unit 604 is further configured to receive a vehicle identification code of the target vehicle input by a user;
the determining unit 601 is further configured to determine the vehicle model of the target vehicle according to the vehicle identification code of the target vehicle;
the determining unit 601 is further configured to determine a model of a corresponding vehicle power converter according to the vehicle model of the target vehicle;
the simulation unit 602 is further configured to simulate an activation signal corresponding to the model of the automotive power converter to attempt to start the target automotive power converter of the target automotive;
a reading unit 605, configured to read relevant information of the target automotive power converter if the target automotive power converter is successfully started, where the relevant information includes the target model of the target automotive power converter;
a judging unit 606, configured to judge whether a model of the automotive power converter is consistent with the target model;
the determining unit 601 is further configured to determine that the model of the automotive power converter is correct if the model of the automotive power converter is consistent with the target model;
the storage unit 607 is configured to, if the model of the automobile power converter is inconsistent with the target model, store the target model, the vehicle identification code of the target automobile, and the automobile model of the target automobile in the preset database in an associated manner;
a prompting unit 608, configured to prompt to re-input the vehicle identification code of the target vehicle if the target vehicle power converter is not successfully started;
and the triggering unit 610 is further used for triggering the step of receiving the vehicle identification code of the target automobile input by the user.
Optionally, the system further includes:
the detection unit 609 is used for starting a self-checking program to detect the insulation performance of the detection system of the automobile power converter;
the judging unit 606 is further configured to judge whether the insulation performance of the automotive power converter detection system meets a preset insulation performance standard;
the triggering unit 610 is further configured to trigger execution of simulating a working condition of the target vehicle to generate a test signal adapted to the target vehicle power converter of the target model if the insulation performance of the vehicle power converter detection system meets a preset insulation performance standard;
the warning unit 611 is configured to issue a warning if the insulation performance of the automotive power converter detection system does not meet a preset insulation performance standard.
Optionally, the system further includes:
a determining unit 601, configured to determine that the target vehicle power converter is in an off state;
the sending unit 603 is further configured to send an internal resistance detection signal to the target automotive power converter in the off state, and receive an internal resistance feedback signal of the target automotive power converter in the off state;
the judging unit 606 is further configured to judge whether the internal resistance feedback signal meets a preset internal resistance standard;
the triggering unit 610 is further configured to trigger execution of the step of sending the test signal to the target automotive power converter if the internal resistance feedback signal meets a preset internal resistance standard;
the warning unit 611 is further configured to issue a warning if the internal resistance feedback signal does not meet a preset internal resistance standard.
Optionally, the system further includes:
and the pressure relief unit 612 is used for relieving the electric energy stored in the high-voltage capacitor in the target automobile power converter, so that the electric energy stored in the high-voltage capacitor reaches a preset safety standard.
Optionally, the system further includes:
a clear code unit 613, configured to perform clear code on the target automotive power converter.
Optionally, the system further includes:
and the forming unit 614 is configured to perform comparative analysis on the detection result and a preset corresponding standard to form a detection report.
The operation performed by the detection system of the power converter of the vehicle according to the embodiment of the present application is similar to the operation performed in fig. 1 to 5, and is not repeated herein.
Therefore, the automobile power converter can be checked and maintained by the automobile power converter detection method through the automobile power converter detection system only by detaching the automobile power converter from the automobile once, the automobile power converter can be reinstalled on the automobile until the automobile power converter is detected to be passed, the processes of detaching, checking and maintaining, loading verification and continuous cyclic dismounting of the automobile power converter in the prior art are avoided, and the efficiency of the maintenance work of the automobile power converter is greatly improved.
Referring to fig. 8, a computer device in an embodiment of the present application is described below, where an embodiment of the computer device in the embodiment of the present application includes:
the computer device 800 may include one or more processors (CPUs) 801 and a memory 802, where one or more applications or data are stored in the memory 802. Wherein the memory 802 is volatile storage or persistent storage. The program stored in the memory 802 may include one or more modules, each of which may include a sequence of instructions operating on a computer device. Still further, the processor 801 may be configured to communicate with the memory 802 to execute a series of instruction operations in the memory 802 on the computer device 800. The computer device 800 may also include one or more wireless network interfaces 803, one or more input-output interfaces 804, and/or one or more operating systems, such as Windows Server, Mac OS, Unix, Linux, FreeBSD, etc. The processor 801 may perform the operations performed in the embodiments shown in fig. 1 to fig. 5, which are not described herein again.
In the several embodiments provided in the embodiments of the present application, it should be understood by those skilled in the art that the disclosed system, apparatus and method can be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the unit is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of 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, devices or units, and may be in an electrical, mechanical or other form.
In addition, functional units in the embodiments of the present application 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 application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in 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 of the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and the like.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A detection method for an automobile power converter is characterized by comprising the following steps:
determining a target model of a target automobile power converter corresponding to the target automobile according to the target automobile identification code;
simulating the working condition of the target automobile to generate a test signal adaptive to the power converter of the target automobile;
sending the test signal to the target automobile power converter to enable the target automobile power converter to generate a corresponding feedback signal;
and receiving and analyzing the feedback signal to obtain a user readable performance parameter as a detection result of the target automobile power converter.
2. The method for detecting the automobile power converter according to claim 1, wherein the determining the target model of the target automobile power converter corresponding to the target automobile according to the target vehicle identification code comprises:
determining a target model of the target automobile power converter in a preset database according to the target vehicle identification code, wherein the preset database stores a plurality of vehicle identification codes, a plurality of automobile power converter models and a corresponding relation between the vehicle identification code and the automobile power converter models, the target model is one of the automobile power converter models, and the target vehicle identification code is one of the vehicle identification codes.
3. The automotive power converter detection method of claim 2, further comprising:
receiving a vehicle identification code of the target automobile input by a user;
determining the automobile model of the target automobile according to the vehicle identification code of the target automobile;
determining the model of a corresponding automobile power converter according to the automobile model of the target automobile; simulating an activation signal corresponding to the model of the automobile power converter to try to start the target automobile power converter of the target automobile;
if the target automobile power converter is successfully started, reading relevant information of the target automobile power converter, wherein the relevant information comprises the target model of the target automobile power converter;
judging whether the model of the automobile power converter is consistent with the target model;
if the model of the automobile power converter is consistent with the target model, judging that the model of the automobile power converter is correct;
if the model of the automobile power converter is inconsistent with the target model, the vehicle identification code of the target automobile and the automobile model of the target automobile are stored in the preset database in an associated mode;
and if the target automobile power converter is not started successfully, prompting the vehicle identification code of the target automobile to be input again, and triggering and executing the step of receiving the vehicle identification code of the target automobile input by the user.
4. The automotive power converter detection method of claim 1, further comprising:
starting a self-checking program to detect the insulation performance of the automobile power converter detection system;
judging whether the insulation performance of the automobile power converter detection system meets a preset insulation performance standard or not;
if the insulation performance of the automobile power converter detection system meets a preset insulation performance standard, triggering and executing a step of simulating the working condition of the target automobile to generate a test signal of the target automobile power converter matched with the target model;
and if the insulation performance of the automobile power converter detection system does not meet the preset insulation performance standard, warning is given out.
5. The automotive power converter detection method of claim 1, further comprising:
determining that the target vehicle power converter is in an off state;
sending an internal resistance detection signal to the target automobile power converter in the closed state, and receiving an internal resistance feedback signal of the target automobile power converter in the closed state;
judging whether the internal resistance feedback signal meets a preset internal resistance standard or not;
if the internal resistance feedback signal meets a preset internal resistance standard, triggering and executing the step of sending the test signal to the target automobile power converter;
and if the internal resistance feedback signal does not meet the preset internal resistance standard, warning is sent.
6. The automotive power converter detection method of claim 1, further comprising:
and discharging the electric energy stored in the high-voltage capacitor in the target automobile power converter, so that the electric energy stored in the high-voltage capacitor reaches a preset safety standard.
7. The automotive power converter detection method of claim 6, further comprising:
and executing code clearing on the target automobile power converter.
8. The automotive power converter detection method of claim 1, further comprising:
and comparing and analyzing the detection result with a preset corresponding standard to form a detection report.
9. An automotive power converter detection system, comprising:
the determining unit is used for determining a target model of a target automobile power converter corresponding to the target automobile according to the target automobile identification code;
the simulation unit is used for simulating the working condition of the target automobile and generating a test signal adaptive to the power converter of the target automobile;
the transmitting unit is used for transmitting the test signal to the target automobile power converter to enable the target automobile power converter to generate a corresponding feedback signal;
and the receiving unit is used for receiving and analyzing the feedback signal to obtain a user readable performance parameter as a detection result of the target automobile power converter.
10. A computer device, comprising:
the system comprises a processor, a memory, a bus, an input/output interface and a wireless network interface;
the processor is connected with the memory, the input/output interface and the wireless network interface through a bus;
the memory has a computer readable program stored therein;
the processor, when executing the computer readable program stored in the memory, implements the automotive power converter detection method of any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111543082.0A CN114167191A (en) | 2021-12-16 | 2021-12-16 | Automobile power converter detection method and system and computer equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111543082.0A CN114167191A (en) | 2021-12-16 | 2021-12-16 | Automobile power converter detection method and system and computer equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114167191A true CN114167191A (en) | 2022-03-11 |
Family
ID=80487076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111543082.0A Pending CN114167191A (en) | 2021-12-16 | 2021-12-16 | Automobile power converter detection method and system and computer equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114167191A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545940A (en) * | 2009-05-08 | 2009-09-30 | 奇瑞汽车股份有限公司 | DC-DC converter fault diagnosis method for pure electric automobile |
| CN107662501A (en) * | 2016-07-28 | 2018-02-06 | 长城汽车股份有限公司 | Electric control method and pure electric automobile under pure electric automobile |
| CN108919780A (en) * | 2018-06-29 | 2018-11-30 | 深圳市元征科技股份有限公司 | Remote diagnosis method for vehicle fault and relevant device |
| CN110509874A (en) * | 2019-09-30 | 2019-11-29 | 北京车和家信息技术有限公司 | Management method, direct current transducer and the power battery of electric car power consumption |
| CN113671240A (en) * | 2021-07-21 | 2021-11-19 | 深圳天邦达科技有限公司 | Voltage and current offline detection and calibration method for automobile 48V power converter |
| CN113778065A (en) * | 2021-09-23 | 2021-12-10 | 深圳市星卡科技有限公司 | Vehicle action testing method and device and computer equipment |
-
2021
- 2021-12-16 CN CN202111543082.0A patent/CN114167191A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545940A (en) * | 2009-05-08 | 2009-09-30 | 奇瑞汽车股份有限公司 | DC-DC converter fault diagnosis method for pure electric automobile |
| CN107662501A (en) * | 2016-07-28 | 2018-02-06 | 长城汽车股份有限公司 | Electric control method and pure electric automobile under pure electric automobile |
| CN108919780A (en) * | 2018-06-29 | 2018-11-30 | 深圳市元征科技股份有限公司 | Remote diagnosis method for vehicle fault and relevant device |
| CN110509874A (en) * | 2019-09-30 | 2019-11-29 | 北京车和家信息技术有限公司 | Management method, direct current transducer and the power battery of electric car power consumption |
| CN113671240A (en) * | 2021-07-21 | 2021-11-19 | 深圳天邦达科技有限公司 | Voltage and current offline detection and calibration method for automobile 48V power converter |
| CN113778065A (en) * | 2021-09-23 | 2021-12-10 | 深圳市星卡科技有限公司 | Vehicle action testing method and device and computer equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104749459B (en) | The method and system diagnosed fault during precharge | |
| CN109782747B (en) | Fault detection method and device | |
| KR101494423B1 (en) | Performance validation apparatus for logic input output of vehicular smart junction box and the method thereof | |
| KR101704135B1 (en) | Apparatus for testing electric vehicle charging and method thereof | |
| CN107340762B (en) | Finished automobile abnormal function checking method and system | |
| CN112925296B (en) | Graphical vehicle-mounted network diagnosis method based on artificial intelligence | |
| CN106610481A (en) | Apparatus and method of diagnosing current sensor of eco-friendly vehicle | |
| CN109001576B (en) | Vehicle collision simulation test method and device | |
| Hocking et al. | Arguing software compliance with ISO 26262 | |
| CN113386609B (en) | Charging pile maintenance method and related equipment | |
| CN114167191A (en) | Automobile power converter detection method and system and computer equipment | |
| CN103076794B (en) | A kind of aging testing system of electric machine controller and method of testing | |
| Khan | ISO 26262 system level functional safety validation for battery management systems in automobiles | |
| CN114906117B (en) | Method, device, equipment and medium for determining brake pedal state of vehicle | |
| US20150094891A1 (en) | Computer-Implemented Method for Generating Software, a Battery, and a Motor Vehicle | |
| CN114771295A (en) | Method and device for diagnosing failure of charge-discharge system | |
| US20220120802A1 (en) | Method for monitoring a switch of a railway track installation | |
| CN111948527B (en) | Hall type brake switch testing device and method and vehicle | |
| CN102169160A (en) | Pin multiplexing verifying device and method for integrated circuit | |
| CN111599377A (en) | Equipment state detection method and system based on audio recognition and mobile terminal | |
| KR102525102B1 (en) | Switching control apparatus that performs power switching control from the main battery pack to the auxiliary battery pack according to the state of charge of the main battery pack in a small electric vehicle and the operating method thereof | |
| KR20130008248A (en) | Equipment for automatically evaluating vehicle and evaluating method using thereof | |
| CN116908599B (en) | Surge test monitoring system, method, equipment and medium for automobile alternating-current charging port | |
| CN114815786B (en) | Test method and system for simulating alarm function triggering and electronic equipment | |
| CN112863008B (en) | Fault recording method and device, storage medium and computer equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |