CN111829797A - Vehicle suspension load testing method, device, storage medium and device - Google Patents
Vehicle suspension load testing method, device, storage medium and device Download PDFInfo
- Publication number
- CN111829797A CN111829797A CN202010770181.1A CN202010770181A CN111829797A CN 111829797 A CN111829797 A CN 111829797A CN 202010770181 A CN202010770181 A CN 202010770181A CN 111829797 A CN111829797 A CN 111829797A
- Authority
- CN
- China
- Prior art keywords
- vehicle
- suspension
- tested
- test
- data
- 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
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/04—Suspension or damping
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0066—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by exciting or detecting vibration or acceleration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0075—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by means of external apparatus, e.g. test benches or portable test systems
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a vehicle suspension load testing method, equipment, a storage medium and a device, compared with the existing method of redevelopment of a suspension bracket and installation of a three-component force testing device in the bracket, the invention acquires the current test item of a vehicle to be tested, controls the vehicle to be tested to execute the current test item, acquires the test data of the vehicle to be tested in the process of executing the current test item, generates a suspension test curve graph according to the test data, determines the suspension displacement of the vehicle to be tested according to the suspension test curve graph, tests the action rigidity of the vehicle to be tested, acquires the suspension dynamic rigidity information of the vehicle to be tested, determines the suspension load vehicle of the vehicle to be tested through a preset suspension rigidity model according to the suspension displacement and the suspension dynamic rigidity information, and overcomes the defects that the tooling manufacturing period is long, the existing technology is, The defect of high equipment maintenance cost can improve the efficiency of the suspension load test and reduce the cost of the suspension load test.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a method, equipment, a storage medium and a device for testing vehicle suspension load.
Background
Currently, the judgment of whether the design of the suspension system of the vehicle is reasonable mainly depends on the suspension load of the suspension system. In the prior art, a method for testing the suspension load of a vehicle suspension system is generally to redevelop a suspension bracket, and install a three-component force testing device in the bracket to obtain the dynamic load of a passive end. However, the above method requires a dedicated tool for the size of the test vehicle, the preparation time is long, and the purchase and maintenance costs of the three-force-sharing device are high.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a vehicle suspension load testing method, device, storage medium and device, and aims to solve the technical problem of how to optimize the vehicle suspension load testing process.
In order to achieve the above object, the present invention provides a vehicle suspension load testing method, including the steps of:
when a load test instruction is received, acquiring a current test item of a vehicle to be tested;
controlling the vehicle to be tested to execute the current test project, and acquiring test data of the vehicle to be tested in the process of executing the current test project;
generating a suspension test curve graph according to the test data, and determining the suspension displacement of the vehicle to be tested according to the suspension test curve graph;
performing a dynamic stiffness test on the vehicle to be tested to obtain suspension dynamic stiffness information of the vehicle to be tested;
and determining the suspension load of the vehicle to be tested through a preset suspension stiffness model according to the suspension displacement and the suspension dynamic stiffness information.
Preferably, the step of obtaining the current test item of the vehicle to be tested when the load test instruction is received specifically includes:
when a load test instruction is received, current vehicle information of a vehicle to be tested is obtained;
judging whether the vehicle to be tested is in a state to be tested according to the current vehicle information;
and searching a current test item corresponding to the current vehicle information when the vehicle to be tested is in the state to be tested.
Preferably, before the step of controlling the vehicle to be tested to execute the current test item and acquiring the test data of the vehicle to be tested in the process of executing the current test item, the vehicle suspension load testing method includes:
acquiring the structural information of a suspension system of the vehicle to be tested and the current installation position of a displacement detection device;
determining the target installation position of the displacement detection device according to the structural information of the suspension system;
judging whether the current installation position is consistent with the target installation position;
correspondingly, the step of controlling the vehicle to be tested to execute the current test item and acquiring the test data of the vehicle to be tested in the process of executing the current test item specifically includes:
and when the current mounting position is consistent with the target mounting position, controlling the vehicle to be tested to execute the current test project, and acquiring test data of the vehicle to be tested in the process of executing the current test project.
Preferably, the step of determining the target installation position of the displacement detection device according to the suspension system structure information specifically includes:
determining the position of an auxiliary frame of the vehicle to be tested and a sensor reflection area according to the structural information of the suspension system;
and determining the target installation position of the displacement detection device according to the position of the auxiliary frame and the reflection area of the sensor.
Preferably, the step of generating a suspension test graph according to the test data and determining the suspension displacement of the vehicle to be tested according to the suspension test graph specifically includes:
carrying out data cleaning on the test data to obtain data to be analyzed;
counting the data quantity of the data to be analyzed, and judging whether the data quantity is smaller than a preset threshold value or not;
when the data quantity is smaller than the preset threshold value, generating a suspension test curve graph according to the data to be analyzed;
and determining the suspension displacement of the vehicle to be tested according to the suspension test curve graph.
Preferably, the step of determining the suspension displacement of the vehicle to be tested according to the suspension test graph specifically includes:
calculating a data average value of the test data, and taking the data average value as characteristic data;
and receiving a screening condition input by a target client, and determining the suspension displacement of the vehicle to be tested according to the screening condition, the characteristic data and the suspension test curve graph.
Preferably, after the step of determining the suspension load of the vehicle to be tested through a preset suspension stiffness model according to the suspension displacement and the suspension dynamic stiffness information, the vehicle suspension load testing method further includes:
determining a suspension system evaluation value of the vehicle to be tested according to the suspension load, and searching a reminding strategy corresponding to the suspension system evaluation value;
and generating reminding information according to the reminding strategy, and sending the reminding information to a target client.
In addition, to achieve the above object, the present invention also provides a vehicle suspension load testing apparatus, which includes a memory, a processor and a vehicle suspension load testing program stored on the memory and operable on the processor, wherein the vehicle suspension load testing program is configured to implement the steps of the vehicle suspension load testing method as described above.
In addition, to achieve the above object, the present invention further provides a storage medium having a vehicle suspension load test program stored thereon, which when executed by a processor implements the steps of the vehicle suspension load test method as described above.
In addition, in order to achieve the above object, the present invention also provides a vehicle suspension load testing apparatus, including: the device comprises an acquisition module, a control module, a determination module and a test module;
the acquisition module is used for acquiring the current test item of the vehicle to be tested when a load test instruction is received;
the control module is used for controlling the vehicle to be tested to execute the current test item and acquiring test data of the vehicle to be tested in the process of executing the current test item;
the determining module is used for generating a suspension test curve graph according to the test data and determining the suspension displacement of the vehicle to be tested according to the suspension test curve graph;
the test module is used for carrying out dynamic stiffness test on the vehicle to be tested to obtain suspension dynamic stiffness information of the vehicle to be tested;
the determining module is further used for determining the suspension load of the vehicle to be tested through a preset suspension stiffness model according to the suspension displacement and the suspension dynamic stiffness information.
Compared with the existing mode of redeveloping a suspension bracket and installing a three-component force testing device in the bracket, the invention obtains the current test item of the vehicle to be tested when receiving a load test instruction, controls the vehicle to be tested to execute the current test item, obtains the test data of the vehicle to be tested in the process of executing the current test item, generates a suspension test curve according to the test data, determines the suspension displacement of the vehicle to be tested according to the suspension test curve, performs action rigidity test on the vehicle to be tested, obtains the suspension dynamic rigidity information of the vehicle to be tested, determines the suspension load vehicle of the vehicle to be tested through a preset suspension rigidity model according to the suspension displacement and the suspension dynamic rigidity information, and overcomes the defects of long tooling manufacturing period and high equipment maintenance cost in the prior art, therefore, the efficiency of the suspension load test can be improved, and the cost of the suspension load test can be reduced.
Drawings
FIG. 1 is a schematic structural diagram of a vehicle suspension load testing device of a hardware operating environment according to an embodiment of the invention;
FIG. 2 is a schematic flow chart of a first embodiment of a vehicle suspension load testing method according to the present invention;
FIG. 3 is a schematic flow chart of a second embodiment of the method for testing the suspension load of the vehicle according to the present invention;
FIG. 4 is a schematic flow chart of a third embodiment of a vehicle suspension load testing method according to the present invention;
fig. 5 is a block diagram showing the structure of a first embodiment of the vehicle suspension load testing apparatus according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle suspension load testing device in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the vehicle suspension load testing apparatus may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), and the optional user interface 1003 may further include a standard wired interface and a wireless interface, and the wired interface for the user interface 1003 may be a USB interface in the present invention. The network interface 1004 may optionally include a standard wired interface, a WIreless interface (e.g., a WIreless-FIdelity (WI-FI) interface). The Memory 1005 may be a Random Access Memory (RAM) Memory or a Non-volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration shown in fig. 1 does not constitute a limitation of the vehicle suspension load testing apparatus and may include more or fewer components than shown, or some components in combination, or a different arrangement of components.
As shown in FIG. 1, memory 1005, identified as one type of computer storage medium, may include an operating system, a network communication module, a user interface module, and a vehicle suspension load test program.
In the vehicle suspension load testing device shown in fig. 1, the network interface 1004 is mainly used for connecting a background server and performing data communication with the background server; the user interface 1003 is mainly used for connecting user equipment; the vehicle-mounted load testing device calls a vehicle-mounted load testing program stored in the memory 1005 through the processor 1001 and executes the vehicle-mounted load testing method provided by the embodiment of the invention.
Based on the hardware structure, the embodiment of the vehicle suspension load testing method is provided.
Referring to fig. 2, fig. 2 is a schematic flow chart of a vehicle suspension load testing method according to a first embodiment of the present invention, and the vehicle suspension load testing method according to the first embodiment of the present invention is provided.
Step S10: and when a load test instruction is received, acquiring a current test item of the vehicle to be tested.
It should be noted that the execution subject of the embodiment is the vehicle suspension load testing device, where the vehicle suspension load testing device may be an electronic device such as a personal computer and a server, and may also be another device that can achieve the same or similar functions.
It should be noted that the load test instruction may be a control instruction sent by a target terminal, where the target terminal may be a terminal device that establishes a communication connection with the vehicle suspension load test device in advance; the vehicle to be tested can be set according to the actual requirements of the user, which is not limited in this embodiment; the current test item may be a test item that the vehicle to be tested needs to perform at the current time.
It should be understood that, when a load test instruction is received, obtaining the current test item of the vehicle to be tested may be obtaining current vehicle information of the vehicle to be tested when the load test instruction is received, judging whether the vehicle to be tested is in a state to be tested according to the current vehicle information, and searching for the current test item corresponding to the current vehicle information when the vehicle to be tested is in the state to be tested.
It should be noted that the to-be-tested state may be a state in which the to-be-tested vehicle already has a vehicle suspension load test condition.
It can be understood that the vehicle to be tested is determined to be in the state to be tested when the vehicle to be tested is in the safe driving state and the engine of the vehicle to be tested is running normally.
It should be understood that the searching for the current test item corresponding to the current vehicle information may be extracting test identification information in the current vehicle information, and searching for the current test item corresponding to the test identification information in a preset item relationship table, where the preset item relationship table includes a correspondence between the test identification information and the current test item, and the correspondence may be set according to a user requirement.
Step S20: and controlling the vehicle to be tested to execute the current test project, and acquiring test data of the vehicle to be tested in the process of executing the current test project.
It should be noted that the test data may be data obtained by a displacement detecting device installed at a target installation position of the vehicle to be tested.
It should be understood that, the controlling the vehicle to be tested to execute the current test item may be controlling the vehicle to be tested to enter a vehicle acceleration condition or a vehicle deceleration condition, which is not limited by the embodiment.
It can be understood that, the obtaining of the test data of the vehicle to be tested in the process of executing the current test project may be obtaining the test data of the vehicle to be tested in the process of executing the current test project by using a displacement detection device installed at a target installation position of the vehicle to be tested, wherein the test data is obtained by obtaining structural information of a suspension system of the vehicle to be tested, determining a subframe position and a sensor reflection area of the vehicle to be tested according to the structural information of the suspension system, and determining a target installation position of the displacement detection device according to the subframe position and the sensor reflection area.
Step S30: and generating a suspension test curve graph according to the test data, and determining the suspension displacement of the vehicle to be tested according to the suspension test curve graph.
It should be noted that the suspension test graph may be a graph representing the variation trend of the test data; the suspension displacement may be movement information of a suspension system of the vehicle to be tested when executing the current test item, wherein the movement information may be relative displacement information of the suspension system with respect to the vehicle to be tested.
It can be understood that generating a suspension test graph according to the test data, determining the suspension displacement of the vehicle to be tested according to the suspension test graph may be performing data cleaning on the test data to obtain data to be analyzed, counting the data quantity of the data to be analyzed, and judging whether the data quantity is smaller than a preset threshold value, generating a suspension test graph according to the data to be analyzed when the data quantity is smaller than the preset threshold value, and determining the suspension displacement of the vehicle to be tested according to the suspension test graph.
It should be understood that the data cleaning is performed on the test data to obtain the data to be analyzed, which may be to cache the test data in the distributed message queue cluster to obtain queue data, perform preprocessing on the queue data to obtain pre-positioned data, select an independent field or an associated field in the pre-positioned data as a feature attribute according to the characteristics of the test data, determine a corresponding calculation rule, and perform aggregation processing on the pre-positioned data according to the feature attribute and the calculation rule to obtain the data to be analyzed.
It should be understood that, the generating of the suspension test graph according to the data to be analyzed may be inputting the data to be analyzed into a drawing software to draw the graph by the drawing software, where the drawing software may be Jfreechart software, and the embodiment is not limited thereto.
Step S40: and performing dynamic stiffness test on the vehicle to be tested to obtain suspension dynamic stiffness information of the vehicle to be tested.
It should be noted that the suspension dynamic stiffness information may be the dynamic stiffness of the suspension system of the vehicle to be tested.
It should be understood that, performing the dynamic stiffness test on the vehicle to be tested to obtain the suspension dynamic stiffness information of the vehicle to be tested may be performing the dynamic stiffness test on the suspension system of the vehicle to be tested on a suspension stiffness test bed to obtain the suspension dynamic stiffness information of the vehicle to be tested.
It can be understood that the action stiffness test of the vehicle to be tested to obtain the suspension action stiffness information of the vehicle to be tested may also be performed by applying a force within a preset frequency range to a suspension system of the vehicle to be tested within a preset time to make the suspension system generate vibration, acquiring a force F signal and a vibration acceleration a signal in real time according to a preset sampling frequency, recording data of the force F, time corresponding to the force F, data of the acceleration a and time corresponding to the acceleration a according to the acquired force signal and acceleration signal according to a preset time interval, acquiring a corresponding relationship between the displacement X and the frequency F according to a corresponding relationship between the data of the acceleration a and the time, acquiring a corresponding relationship between the displacement X and the time t according to a corresponding relationship between the displacement X and the frequency F, and acquiring a corresponding relationship between the displacement X and the time t according to a corresponding relationship between the displacement X and the time t and a corresponding relationship between the force F and the time t, and obtaining the corresponding relation between the dynamic stiffness Z and the frequency F according to the corresponding relation between the dynamic stiffness Z and the time t, the corresponding relation between the displacement X and the time t and the corresponding relation between the displacement X and the frequency F.
Step S50: and determining the suspension load of the vehicle to be tested through a preset suspension stiffness model according to the suspension displacement and the suspension dynamic stiffness information.
It should be noted that the suspension load may be a load of a suspension system of the vehicle to be tested, and the suspension load may be used to assess whether the suspension design is reasonable; the preset suspension stiffness model may be a preset suspension stiffness curve model.
It should be understood that, the determining the suspension load of the vehicle to be tested through the preset suspension stiffness model according to the suspension displacement and the suspension dynamic stiffness information may be to input the suspension displacement and the suspension dynamic stiffness information into the suspension stiffness curve model to obtain the suspension load of the vehicle to be tested.
Compared with the existing method for redevelopment of a suspension bracket and installation of a three-component force testing device in the bracket, the first embodiment obtains the current test item of a vehicle to be tested, controls the vehicle to be tested to execute the current test item, obtains the test data of the vehicle to be tested in the process of executing the current test item, generates a suspension test curve according to the test data, determines the suspension displacement of the vehicle to be tested according to the suspension test curve, performs action stiffness test on the vehicle to be tested, obtains the suspension dynamic stiffness information of the vehicle to be tested, determines the suspension load vehicle of the vehicle to be tested through a preset suspension stiffness model according to the suspension displacement and the suspension dynamic stiffness information, and overcomes the defects of long tooling period and high equipment maintenance cost in the prior art, therefore, the efficiency of the suspension load test can be improved, and the cost of the suspension load test can be reduced.
Referring to fig. 3, fig. 3 is a schematic flow chart of a second embodiment of the vehicle suspension load testing method of the present invention, and the second embodiment of the vehicle suspension load testing method of the present invention is proposed based on the first embodiment shown in fig. 2.
In the second embodiment, before the step S20, the method further includes:
step S11: and acquiring the structural information of the suspension system of the vehicle to be tested and the current installation position of the displacement detection device.
It should be noted that the suspension system structure information may be structure information of a suspension system of the vehicle to be tested; the current mounting position may be mounting position information of the displacement detecting means at the current time.
It should be understood that, the obtaining of the suspension system structure information of the vehicle to be tested may be directly reading the suspension system structure information of the vehicle to be tested from a preset database, wherein the suspension system structure information of the vehicle to be tested in the preset database may be pre-stored by a user; the obtaining of the current installation position of the displacement detection device may be directly reading the current installation position of the displacement detection device through a Controller Area Network (CAN) bus.
Step S12: and determining the target installation position of the displacement detection device according to the structural information of the suspension system.
It is understood that the determining of the target mounting position of the displacement detection device according to the suspension system structure information may be determining a subframe position and a sensor reflection area of the vehicle to be tested according to the suspension system structure information, and determining the target mounting position of the displacement detection device according to the subframe position and the sensor reflection area.
Further, the step S12 includes:
determining the position of an auxiliary frame of the vehicle to be tested and a sensor reflection area according to the structural information of the suspension system;
and determining the target installation position of the displacement detection device according to the position of the auxiliary frame and the reflection area of the sensor.
The auxiliary frame can be assembled with an installation point on the auxiliary frame; the sensor reflective area may be a displacement detection means reflective area.
It should be understood that determining the subframe position and the sensor reflection area of the vehicle to be tested according to the suspension system structure information may be analyzing the suspension system structure information to obtain the subframe position and the sensor reflection area of the vehicle to be tested.
Step S13: and judging whether the current installation position is consistent with the target installation position.
It is to be understood that the determining whether the current mounting position coincides with the target mounting position may be determining whether the current mounting position coincides with the target mounting position.
Accordingly, the step S20 includes:
step S20': and when the current mounting position is consistent with the target mounting position, controlling the vehicle to be tested to execute the current test project, and acquiring test data of the vehicle to be tested in the process of executing the current test project.
It can be understood that, when the current installation position is consistent with the target installation position, it indicates that the displacement detection device is already installed at the target installation position, at this time, the control of the vehicle to be tested to execute the current test item may be directly performed, and the test data in the process of executing the current test item by the vehicle to be tested may be acquired.
In a second embodiment, obtaining structural information of a suspension system of the vehicle to be tested and a current installation position of a displacement detection device, determining a target installation position of the displacement detection device according to the structural information of the suspension system, judging whether the current installation position is consistent with the target installation position, controlling the vehicle to be tested to execute the current test item when the current installation position is consistent with the target installation position, and obtaining test data of the vehicle to be tested in the process of executing the current test item; whether the displacement detection device is installed on the target installation position or not is judged through the structural information of the suspension system of the vehicle to be tested and the current installation position of the displacement detection device, and when the displacement detection device is installed on the target installation position, follow-up operation is executed, so that the displacement detection device can be arranged on the target installation position, and the displacement testing efficiency is improved.
In the second embodiment, after the step S50, the method further includes:
step S60: and determining the evaluation value of the suspension system of the vehicle to be tested according to the suspension load, and searching a reminding strategy corresponding to the evaluation value of the suspension system.
It is to be understood that the suspension system evaluation value may be a numerical value that assesses whether the suspension design is reasonable; the reminding strategy may be a strategy for reminding whether the suspension design of the target client is reasonable, for example, a text reminding strategy, a voice reminding strategy, and the like, which is not limited in this embodiment.
It should be understood that determining the suspension system evaluation value of the vehicle to be tested according to the suspension load may be converting the suspension load to obtain the suspension system evaluation value of the vehicle to be tested.
It can be understood that the finding of the reminding strategy corresponding to the suspension system evaluation value may be finding the reminding strategy corresponding to the suspension system evaluation value in a preset mapping relation table, where the preset mapping relation table includes a corresponding relation between the suspension system evaluation value and the reminding strategy, and the corresponding relation is set according to a user requirement.
Step S70: and generating reminding information according to the reminding strategy, and sending the reminding information to a target client.
It should be noted that the reminder may be a text reminder, such as, "hanging unreasonable design! "; the reminding information may also be voice reminding information, for example, preset music is played, which is not limited in this embodiment.
It should be understood that the generation of the reminder information according to the reminder policy can be that the reminder information is a text reminder information when the reminder policy is a text reminder policy, for example, "hanging unreasonable design! ", the present embodiment is not limited in this regard.
In a second embodiment, determining a suspension system evaluation value of the vehicle to be tested according to the suspension load, and searching a reminding strategy corresponding to the suspension system evaluation value; and generating reminding information according to the reminding strategy, and sending the reminding information to a target client, so that a vehicle suspension load test result can be visually represented, and the user experience is improved.
Referring to fig. 4, fig. 4 is a schematic flow chart of a vehicle suspension load testing method according to a third embodiment of the present invention, and the third embodiment of the vehicle suspension load testing method according to the present invention is proposed based on the first embodiment shown in fig. 2.
In the third embodiment, the step S10 includes:
step S101: and when the load test instruction is received, acquiring the current vehicle information of the vehicle to be tested.
It should be noted that the load test instruction may be a control instruction sent by a target terminal, where the target terminal may be a terminal device that establishes a communication connection with the vehicle suspension load test device in advance; the vehicle to be tested can be set according to the actual requirements of the user, which is not limited in this embodiment; the current vehicle information may be test identification information of the vehicle to be tested, vehicle state information, and the like, where the test identification information may be identification information set by a user according to an actual situation, and is used to identify a completed test item and an uncompleted test item, which is not limited in this embodiment; the vehicle state information may be information indicating a current state of the vehicle, for example, information such as a state of an engine of the vehicle and driving condition information.
Step S102: and judging whether the vehicle to be tested is in a state to be tested according to the current vehicle information.
It should be noted that the to-be-tested state may be a state in which the to-be-tested vehicle already has a vehicle suspension load test condition.
It should be understood that the judging whether the vehicle to be tested is in the state to be tested according to the current vehicle information may be judging whether the vehicle to be tested is in a safe driving state according to the driving condition information, obtaining a driving condition judgment result, judging whether an engine of the vehicle to be tested normally runs according to a vehicle engine state, obtaining an engine judgment result, and judging whether the vehicle to be tested is in the state to be tested according to the driving condition judgment result and the engine judgment result.
Step S103: and searching a current test item corresponding to the current vehicle information when the vehicle to be tested is in the state to be tested.
It should be noted that the current test item may be a test item that needs to be executed by the vehicle to be tested at the current time.
It can be understood that the vehicle to be tested is determined to be in the state to be tested when the vehicle to be tested is in the safe driving state and the engine of the vehicle to be tested is running normally.
It should be understood that the searching for the current test item corresponding to the current vehicle information may be extracting test identification information in the current vehicle information, and searching for the current test item corresponding to the test identification information in a preset item relationship table, where the preset item relationship table includes a correspondence between the test identification information and the current test item, and the correspondence may be set according to a user requirement.
In a third embodiment, when a load test instruction is received, current vehicle information of a vehicle to be tested is obtained, whether the vehicle to be tested is in a state to be tested is judged according to the current vehicle information, and when the vehicle to be tested is in the state to be tested, a current test item corresponding to the current vehicle information is searched; the embodiment judges whether the vehicle to be tested is in the state to be tested through the current vehicle information, and determines the current experimental project according to the current vehicle information when the vehicle to be tested is in the state to be tested, so that experimental errors can be brought by different vehicle states, and the accuracy of testing the vehicle suspension load is improved.
In the third embodiment, the step S30 includes:
step S301: and carrying out data cleaning on the test data to obtain data to be analyzed.
It should be understood that the data cleaning is performed on the test data to obtain the data to be analyzed, which may be to cache the test data in the distributed message queue cluster to obtain queue data, perform preprocessing on the queue data to obtain pre-positioned data, select an independent field or an associated field in the pre-positioned data as a feature attribute according to the characteristics of the test data, determine a corresponding calculation rule, and perform aggregation processing on the pre-positioned data according to the feature attribute and the calculation rule to obtain the data to be analyzed.
Step S302: and counting the data quantity of the data to be analyzed, and judging whether the data quantity is smaller than a preset threshold value.
It should be noted that the preset threshold may be set according to the actual requirement of the user, and this embodiment is not limited to this.
It is understood that if the data amount is greater than the preset threshold, it indicates that the data amount of the data to be analyzed is too large. At this time, a specified number of data to be analyzed may be acquired, where the specified number is equal to a preset threshold.
Step S303: and when the data quantity is smaller than the preset threshold value, generating a suspension test curve graph according to the data to be analyzed.
It should be understood that, the generating of the suspension test graph according to the data to be analyzed may be inputting the data to be analyzed into a drawing software to draw the graph by the drawing software, where the drawing software may be Jfreechart software, and the embodiment is not limited thereto.
Step S304: and determining the suspension displacement of the vehicle to be tested according to the suspension test curve graph.
It should be understood that determining the suspension displacement of the vehicle to be tested according to the suspension test graph may be calculating a data average of the test data, taking the data average as feature data, receiving a screening condition input by a target client, and determining the suspension displacement of the vehicle to be tested according to the screening condition, the feature data and the suspension test graph.
Further, the step S304 includes:
calculating a data average value of the test data, and taking the data average value as characteristic data;
and receiving a screening condition input by a target client, and determining the suspension displacement of the vehicle to be tested according to the screening condition, the characteristic data and the suspension test curve graph.
It should be understood that if a screening condition input by a target client is received, the suspension displacement of the vehicle to be tested is determined according to the screening condition, the feature data and the suspension test graph. For example, the filtering conditions input by the user are: and acquiring data from 12:00 to 12:30, and screening the data with the time from 12:00 to 12:30 from the suspension test curve graph.
It can be understood that the suspension displacement of the vehicle to be tested is determined according to the screening condition, the characteristic data and the suspension test curve graph, the data difference value between the test data and the characteristic data in the suspension test curve graph is calculated, the test data with the data difference value larger than the preset difference value is screened out, the current data is obtained, and the current data is screened according to the screening condition, so that the suspension displacement of the vehicle to be tested is obtained.
In a third embodiment, data cleaning is performed on the test data to obtain data to be analyzed, data quantity of the data to be analyzed is counted, whether the data quantity is smaller than a preset threshold value or not is judged, when the data quantity is smaller than the preset threshold value, a suspension test curve graph is generated according to the data to be analyzed, and suspension displacement of the vehicle to be tested is determined according to the suspension test curve graph; according to the embodiment, the data to be analyzed is obtained by performing data cleaning on the test data, when the data quantity of the data to be analyzed is smaller than the preset threshold value, the suspension test curve graph is generated according to the data to be analyzed, and the suspension displacement of the vehicle to be tested is determined according to the suspension test curve graph, so that the suspension displacement of the vehicle to be tested can be accurately detected.
In addition, an embodiment of the present invention further provides a storage medium, where a vehicle suspension load test program is stored, and the vehicle suspension load test program, when executed by a processor, implements the steps of the vehicle suspension load test method as described above.
In addition, referring to fig. 5, an embodiment of the present invention further provides a vehicle suspension load testing apparatus, including: the device comprises an acquisition module 10, a control module 20, a determination module 30 and a test module 40;
the obtaining module 10 is configured to obtain a current test item of the vehicle to be tested when the load test instruction is received.
It should be noted that the load test instruction may be a control instruction sent by a target terminal, where the target terminal may be a terminal device that establishes a communication connection with the vehicle suspension load test device in advance; the vehicle to be tested can be set according to the actual requirements of the user, which is not limited in this embodiment; the current test item may be a test item that the vehicle to be tested needs to perform at the current time.
It should be understood that, when a load test instruction is received, obtaining the current test item of the vehicle to be tested may be obtaining current vehicle information of the vehicle to be tested when the load test instruction is received, judging whether the vehicle to be tested is in a state to be tested according to the current vehicle information, and searching for the current test item corresponding to the current vehicle information when the vehicle to be tested is in the state to be tested.
It should be noted that the to-be-tested state may be a state in which the to-be-tested vehicle already has a vehicle suspension load test condition.
It can be understood that the vehicle to be tested is determined to be in the state to be tested when the vehicle to be tested is in the safe driving state and the engine of the vehicle to be tested is running normally.
It should be understood that the searching for the current test item corresponding to the current vehicle information may be extracting test identification information in the current vehicle information, and searching for the current test item corresponding to the test identification information in a preset item relationship table, where the preset item relationship table includes a correspondence between the test identification information and the current test item, and the correspondence may be set according to a user requirement.
The control module 20 is configured to control the vehicle to be tested to execute the current test item, and obtain test data of the vehicle to be tested in the process of executing the current test item.
It should be noted that the test data may be data obtained by a displacement detecting device installed at a target installation position of the vehicle to be tested.
It should be understood that, the controlling the vehicle to be tested to execute the current test item may be controlling the vehicle to be tested to enter a vehicle acceleration condition or a vehicle deceleration condition, which is not limited by the embodiment.
It can be understood that, the obtaining of the test data of the vehicle to be tested in the process of executing the current test project may be obtaining the test data of the vehicle to be tested in the process of executing the current test project by using a displacement detection device installed at a target installation position of the vehicle to be tested, wherein the test data is obtained by obtaining structural information of a suspension system of the vehicle to be tested, determining a subframe position and a sensor reflection area of the vehicle to be tested according to the structural information of the suspension system, and determining a target installation position of the displacement detection device according to the subframe position and the sensor reflection area.
The determining module 30 is configured to generate a suspension test graph according to the test data, and determine a suspension displacement of the vehicle to be tested according to the suspension test graph.
It should be noted that the suspension test graph may be a graph representing the variation trend of the test data; the suspension displacement may be movement information of a suspension system of the vehicle to be tested when executing the current test item, wherein the movement information may be relative displacement information of the suspension system with respect to the vehicle to be tested.
It can be understood that generating a suspension test graph according to the test data, determining the suspension displacement of the vehicle to be tested according to the suspension test graph may be performing data cleaning on the test data to obtain data to be analyzed, counting the data quantity of the data to be analyzed, and judging whether the data quantity is smaller than a preset threshold value, generating a suspension test graph according to the data to be analyzed when the data quantity is smaller than the preset threshold value, and determining the suspension displacement of the vehicle to be tested according to the suspension test graph.
It should be understood that the data cleaning is performed on the test data to obtain the data to be analyzed, which may be to cache the test data in the distributed message queue cluster to obtain queue data, perform preprocessing on the queue data to obtain pre-positioned data, select an independent field or an associated field in the pre-positioned data as a feature attribute according to the characteristics of the test data, determine a corresponding calculation rule, and perform aggregation processing on the pre-positioned data according to the feature attribute and the calculation rule to obtain the data to be analyzed.
It should be understood that, the generating of the suspension test graph according to the data to be analyzed may be inputting the data to be analyzed into a drawing software to draw the graph by the drawing software, where the drawing software may be Jfreechart software, and the embodiment is not limited thereto.
The test module 40 is configured to perform a dynamic stiffness test on the vehicle to be tested to obtain suspension dynamic stiffness information of the vehicle to be tested.
It should be noted that the suspension dynamic stiffness information may be the dynamic stiffness of the suspension system of the vehicle to be tested.
It should be understood that, performing the dynamic stiffness test on the vehicle to be tested to obtain the suspension dynamic stiffness information of the vehicle to be tested may be performing the dynamic stiffness test on the suspension system of the vehicle to be tested on a suspension stiffness test bed to obtain the suspension dynamic stiffness information of the vehicle to be tested.
It can be understood that the action stiffness test of the vehicle to be tested to obtain the suspension action stiffness information of the vehicle to be tested may also be performed by applying a force within a preset frequency range to a suspension system of the vehicle to be tested within a preset time to make the suspension system generate vibration, acquiring a force F signal and a vibration acceleration a signal in real time according to a preset sampling frequency, recording data of the force F, time corresponding to the force F, data of the acceleration a and time corresponding to the acceleration a according to the acquired force signal and acceleration signal according to a preset time interval, acquiring a corresponding relationship between the displacement X and the frequency F according to a corresponding relationship between the data of the acceleration a and the time, acquiring a corresponding relationship between the displacement X and the time t according to a corresponding relationship between the displacement X and the frequency F, and acquiring a corresponding relationship between the displacement X and the time t according to a corresponding relationship between the displacement X and the time t and a corresponding relationship between the force F and the time t, and obtaining the corresponding relation between the dynamic stiffness Z and the frequency F according to the corresponding relation between the dynamic stiffness Z and the time t, the corresponding relation between the displacement X and the time t and the corresponding relation between the displacement X and the frequency F.
The determining module 30 is further configured to determine a suspension load of the vehicle to be tested through a preset suspension stiffness model according to the suspension displacement and the suspension dynamic stiffness information.
It should be noted that the suspension load may be a load of a suspension system of the vehicle to be tested, and the suspension load may be used to assess whether the suspension design is reasonable; the preset suspension stiffness model may be a preset suspension stiffness curve model.
It should be understood that, the determining the suspension load of the vehicle to be tested through the preset suspension stiffness model according to the suspension displacement and the suspension dynamic stiffness information may be to input the suspension displacement and the suspension dynamic stiffness information into the suspension stiffness curve model to obtain the suspension load of the vehicle to be tested.
Compared with the existing method of redevelopment of a suspension bracket and installation of a three-component force testing device in the bracket, in this embodiment, when a load testing instruction is received, a current testing item of a vehicle to be tested is acquired, the vehicle to be tested is controlled to execute the current testing item, testing data in the process of executing the current testing item by the vehicle to be tested is acquired, a suspension testing curve is generated according to the testing data, suspension displacement of the vehicle to be tested is determined according to the suspension testing curve, the vehicle to be tested is subjected to action stiffness testing, suspension dynamic stiffness information of the vehicle to be tested is acquired, and the suspension load vehicle of the vehicle to be tested is determined through a preset suspension stiffness model according to the suspension displacement and the suspension dynamic stiffness information, so that the defects of long tooling manufacturing period and high equipment maintenance cost in the prior art are overcome, therefore, the efficiency of the suspension load test can be improved, and the cost of the suspension load test can be reduced.
In an embodiment, the obtaining module 10 is further configured to obtain current vehicle information of a vehicle to be tested when a load test instruction is received, determine whether the vehicle to be tested is in a state to be tested according to the current vehicle information, and search a current test item corresponding to the current vehicle information when the vehicle to be tested is in the state to be tested;
in one embodiment, the vehicle suspension load testing apparatus further includes: a judgment module;
the judging module is configured to obtain structural information of a suspension system of the vehicle to be tested and a current mounting position of a displacement detection device, determine a target mounting position of the displacement detection device according to the structural information of the suspension system, judge whether the current mounting position is consistent with the target mounting position, and accordingly, the control module 20 is further configured to control the vehicle to be tested to execute the current test item and obtain test data of the vehicle to be tested in the process of executing the current test item when the current mounting position is consistent with the target mounting position;
in an embodiment, the determining module is further configured to determine a subframe position and a sensor reflection area of the vehicle to be tested according to the suspension system structure information, and determine a target installation position of the displacement detecting device according to the subframe position and the sensor reflection area;
in an embodiment, the determining module 30 is further configured to perform data cleaning on the test data to obtain data to be analyzed, count the data quantity of the data to be analyzed, determine whether the data quantity is smaller than a preset threshold, generate a suspension test curve according to the data to be analyzed when the data quantity is smaller than the preset threshold, and determine the suspension displacement of the vehicle to be tested according to the suspension test curve;
in an embodiment, the determining module 30 is further configured to calculate a data average value of the test data, take the data average value as feature data, receive a screening condition input by a target client, and determine a suspension displacement of the vehicle to be tested according to the screening condition, the feature data, and the suspension test graph;
in one embodiment, the vehicle suspension load testing apparatus further includes: a reminding module;
the reminding module is used for determining the suspension system evaluation value of the vehicle to be tested according to the suspension load, searching a reminding strategy corresponding to the suspension system evaluation value, generating reminding information according to the reminding strategy and sending the reminding information to a target client.
Other embodiments or specific implementation manners of the vehicle suspension load testing device of the invention can refer to the above method embodiments, and are not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order, but rather the words first, second, third, etc. are to be interpreted as names.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be substantially implemented or a part contributing to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g., a Read Only Memory (ROM)/Random Access Memory (RAM), a magnetic disk, an optical disk), and includes several instructions for enabling a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A vehicle suspension load testing method is characterized by comprising the following steps:
when a load test instruction is received, acquiring a current test item of a vehicle to be tested;
controlling the vehicle to be tested to execute the current test project, and acquiring test data of the vehicle to be tested in the process of executing the current test project;
generating a suspension test curve graph according to the test data, and determining the suspension displacement of the vehicle to be tested according to the suspension test curve graph;
performing a dynamic stiffness test on the vehicle to be tested to obtain suspension dynamic stiffness information of the vehicle to be tested;
and determining the suspension load of the vehicle to be tested through a preset suspension stiffness model according to the suspension displacement and the suspension dynamic stiffness information.
2. The vehicle suspension load testing method according to claim 1, wherein the step of obtaining the current test item of the vehicle to be tested when receiving the load testing instruction specifically comprises:
when a load test instruction is received, current vehicle information of a vehicle to be tested is obtained;
judging whether the vehicle to be tested is in a state to be tested according to the current vehicle information;
and searching a current test item corresponding to the current vehicle information when the vehicle to be tested is in the state to be tested.
3. The vehicle suspension load testing method of claim 1, wherein before the step of controlling the vehicle to be tested to execute the current test item and obtaining the test data during the execution of the current test item by the vehicle to be tested, the vehicle suspension load testing method comprises:
acquiring the structural information of a suspension system of the vehicle to be tested and the current installation position of a displacement detection device;
determining the target installation position of the displacement detection device according to the structural information of the suspension system;
judging whether the current installation position is consistent with the target installation position;
correspondingly, the step of controlling the vehicle to be tested to execute the current test item and acquiring the test data of the vehicle to be tested in the process of executing the current test item specifically includes:
and when the current mounting position is consistent with the target mounting position, controlling the vehicle to be tested to execute the current test project, and acquiring test data of the vehicle to be tested in the process of executing the current test project.
4. The vehicle suspension load testing method according to claim 3, wherein the step of determining the target installation position of the displacement detection device according to the suspension system structure information specifically comprises:
determining the position of an auxiliary frame of the vehicle to be tested and a sensor reflection area according to the structural information of the suspension system;
and determining the target installation position of the displacement detection device according to the position of the auxiliary frame and the reflection area of the sensor.
5. The vehicle suspension load testing method of claim 1, wherein the step of generating a suspension test graph according to the test data and determining the suspension displacement of the vehicle to be tested according to the suspension test graph specifically comprises:
carrying out data cleaning on the test data to obtain data to be analyzed;
counting the data quantity of the data to be analyzed, and judging whether the data quantity is smaller than a preset threshold value or not;
when the data quantity is smaller than the preset threshold value, generating a suspension test curve graph according to the data to be analyzed;
and determining the suspension displacement of the vehicle to be tested according to the suspension test curve graph.
6. The vehicle suspension load testing method of claim 5, wherein the step of determining the suspension displacement of the vehicle to be tested according to the suspension test graph specifically comprises:
calculating a data average value of the test data, and taking the data average value as characteristic data;
and receiving a screening condition input by a target client, and determining the suspension displacement of the vehicle to be tested according to the screening condition, the characteristic data and the suspension test curve graph.
7. The vehicle suspension load testing method of any one of claims 1-6, wherein after the step of determining the suspension load of the vehicle to be tested through a preset suspension stiffness model according to the suspension displacement and the suspension dynamic stiffness information, the vehicle suspension load testing method further comprises:
determining a suspension system evaluation value of the vehicle to be tested according to the suspension load, and searching a reminding strategy corresponding to the suspension system evaluation value;
and generating reminding information according to the reminding strategy, and sending the reminding information to a target client.
8. A vehicle suspension load testing apparatus, characterized by comprising: a memory, a processor and a vehicle suspension load testing program stored on the memory and executable on the processor, the vehicle suspension load testing program when executed by the processor implementing the steps of the vehicle suspension load testing method as claimed in any one of claims 1 to 7.
9. A storage medium having a vehicle suspension load test program stored thereon, the vehicle suspension load test program when executed by a processor implementing the steps of the vehicle suspension load test method according to any one of claims 1 to 7.
10. A vehicle suspension load test apparatus, characterized by comprising: the device comprises an acquisition module, a control module, a determination module and a test module;
the acquisition module is used for acquiring the current test item of the vehicle to be tested when a load test instruction is received;
the control module is used for controlling the vehicle to be tested to execute the current test item and acquiring test data of the vehicle to be tested in the process of executing the current test item;
the determining module is used for generating a suspension test curve graph according to the test data and determining the suspension displacement of the vehicle to be tested according to the suspension test curve graph;
the test module is used for carrying out dynamic stiffness test on the vehicle to be tested to obtain suspension dynamic stiffness information of the vehicle to be tested;
the determining module is further used for determining the suspension load of the vehicle to be tested through a preset suspension stiffness model according to the suspension displacement and the suspension dynamic stiffness information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010770181.1A CN111829797A (en) | 2020-08-03 | 2020-08-03 | Vehicle suspension load testing method, device, storage medium and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010770181.1A CN111829797A (en) | 2020-08-03 | 2020-08-03 | Vehicle suspension load testing method, device, storage medium and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111829797A true CN111829797A (en) | 2020-10-27 |
Family
ID=72920848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010770181.1A Pending CN111829797A (en) | 2020-08-03 | 2020-08-03 | Vehicle suspension load testing method, device, storage medium and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111829797A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01257238A (en) * | 1988-04-06 | 1989-10-13 | Saginomiya Seisakusho Inc | Testing method of suspension in fundamental characteristics of vehicle |
| CN104568096A (en) * | 2014-12-23 | 2015-04-29 | 潍柴动力股份有限公司 | Vehicle with leaf spring suspension as well as weight measuring system and weight measuring method of vehicle |
| CN105354378A (en) * | 2015-10-30 | 2016-02-24 | 北京新能源汽车股份有限公司 | Vehicle suspension load analysis method and analysis system |
| CN110210179A (en) * | 2019-06-28 | 2019-09-06 | 合肥工业大学 | A kind of acquisition methods of elastic element dynamic stiffness and its both ends load |
-
2020
- 2020-08-03 CN CN202010770181.1A patent/CN111829797A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01257238A (en) * | 1988-04-06 | 1989-10-13 | Saginomiya Seisakusho Inc | Testing method of suspension in fundamental characteristics of vehicle |
| CN104568096A (en) * | 2014-12-23 | 2015-04-29 | 潍柴动力股份有限公司 | Vehicle with leaf spring suspension as well as weight measuring system and weight measuring method of vehicle |
| CN105354378A (en) * | 2015-10-30 | 2016-02-24 | 北京新能源汽车股份有限公司 | Vehicle suspension load analysis method and analysis system |
| CN110210179A (en) * | 2019-06-28 | 2019-09-06 | 合肥工业大学 | A kind of acquisition methods of elastic element dynamic stiffness and its both ends load |
Non-Patent Citations (2)
| Title |
|---|
| 支保京等: "重型卡车驾驶室悬置动态载荷的识别分析", 《汽车实用技术》 * |
| 牟小龙等: "基于六自由度测试的悬置时域载荷识别方法", 《2019中囯汽车工程学会年会论文集》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102890503A (en) | Automatic CAN (Controller Area Network) interface function test system and test analysis method | |
| CN110132604B (en) | Engine reliability testing method, device, equipment and storage medium | |
| CN112033667A (en) | Automobile gearbox testing method, automobile gearbox testing equipment, storage medium and automobile gearbox testing device | |
| CN112445197B (en) | Controller version information verification method, processor and whole vehicle test system | |
| CN104132812A (en) | Engine fault detection method and engine fault detection system | |
| CN113758514A (en) | Automobile instrument automatic testing method and system, readable storage medium and vehicle | |
| CN113110909A (en) | Vehicle instrument testing method and device | |
| CN112268696B (en) | Clutch detection method, device, storage medium and device | |
| CN111829797A (en) | Vehicle suspension load testing method, device, storage medium and device | |
| CN112132111A (en) | Parking typical scene extraction method, device, storage medium and device | |
| CN109947639B (en) | Automatic test method for ESB interface | |
| CN111591374A (en) | Vehicle suspension system design method, apparatus, storage medium, and device | |
| CN111598403A (en) | Method and device for determining automobile test result, server and storage medium | |
| CN110850850A (en) | Off-line detection method, device and equipment for cooling water pump and storage medium | |
| CN115643231A (en) | Method and device for detecting vehicle-mounted terminal equipment, electronic equipment and storage medium | |
| CN109298881A (en) | Automatic packaging data method, device, equipment and computer readable storage medium | |
| CN113656392A (en) | Tightening data management method and device and computer-readable storage medium | |
| CN114398272A (en) | Pressure measurement method and pressure measurement device for combination performance bottleneck positioning | |
| KR20140095715A (en) | Method and device for changing icon | |
| CN113168739A (en) | Method for checking at least one vehicle and electronic computing device | |
| CN112319495B (en) | Method, device and equipment for determining automobile system model and storage medium | |
| CN110553849A (en) | Driving condition evaluation system and method | |
| CN113343659B (en) | Analysis report generation method, device, equipment and storage medium | |
| CN111401824A (en) | Method and device for calculating working hours | |
| CN115512458B (en) | Monitoring data analysis method, device, equipment and storage medium |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201027 |