CN113155473A - Power drive system test platform for fuel cell automobile - Google Patents
Power drive system test platform for fuel cell automobile Download PDFInfo
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- CN113155473A CN113155473A CN202110298601.5A CN202110298601A CN113155473A CN 113155473 A CN113155473 A CN 113155473A CN 202110298601 A CN202110298601 A CN 202110298601A CN 113155473 A CN113155473 A CN 113155473A
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The invention provides a power driving system test platform for a fuel cell vehicle, which comprises a test module, a data acquisition module, a data processing module and a data storage module, wherein the data acquisition module is used for acquiring data; the test module is used for simulating the running state of the fuel cell automobile and testing the driving system of the fuel cell automobile; the data acquisition module is used for acquiring running state data of the fuel cell automobile driving system in the running state; the data processing module is used for judging whether the running state data is abnormal or not to obtain a judgment result; and the data storage module is used for storing the running state data and the corresponding judgment result. Compared with a mode of directly carrying out real vehicle testing, the driving state that can be simulated by the method is more, so that the testing result of the driving system under more running states can be obtained, and the quick testing and the comprehensive testing of the driving system are realized.
Description
Technical Field
The invention relates to the field of testing, in particular to a power driving system testing platform for a fuel cell automobile.
Background
A Fuel Cell Vehicle (FCV) is a vehicle using electric power generated by an on-vehicle fuel cell device as power, and belongs to a type of electric vehicle. The fuel cell automobile driving system includes a fuel cell, a motor controller, a motor, and the like. In the prior art, a driving system of a fuel cell vehicle is generally tested by a real vehicle test mode, but the test mode has low efficiency, the fuel cell vehicle needs to be driven to run on the road, and sufficient time is not available for simulating various driving states to obtain a test result, so that the test result cannot comprehensively reflect the running condition of the driving system of the fuel cell vehicle in each driving state.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a test platform for a power driving system for a fuel cell vehicle.
The invention provides a power driving system test platform for a fuel cell vehicle, which comprises a test module, a data acquisition module, a data processing module and a data storage module, wherein the data acquisition module is used for acquiring data;
the test module is used for simulating the running state of the fuel cell automobile and testing the driving system of the fuel cell automobile;
the data acquisition module is used for acquiring running state data of the fuel cell automobile driving system in the running state and sending the running state data to the data processing module;
the data processing module is used for judging whether the running state data is abnormal or not to obtain a judgment result, and sending the running state data and the corresponding judgment result to the data storage module;
and the data storage module is used for storing the running state data and the corresponding judgment result.
Preferably, the test module comprises a driving system to be tested, a simulation system and a control device; the driving system to be tested is connected with the simulation system; the control device is respectively connected with the driving system to be tested and the simulation system.
Preferably, the driving system to be tested comprises a fuel cell stack, a first inverter and a motor to be tested; the fuel cell stack, the first inverter and the motor to be tested are sequentially connected; the fuel cell stack is used for providing direct current for the first inverter, and the first inverter is used for converting the direct current into alternating current and transmitting the alternating current to the motor to be tested.
Preferably, the simulation system comprises a direct current power supply end, a second inverter and a simulation motor; the direct current power supply end, the second inverter and the analog motor are sequentially connected; the direct current power supply end is used for supplying direct current to the second inverter; the second inverter is used for converting the direct current into alternating current and transmitting the alternating current to the analog motor.
Preferably, the rotating shaft of the motor to be tested and the rotating shaft of the simulation motor are connected through a coupler.
Preferably, the control device is connected to the driving system to be tested and the simulation system respectively, and includes:
and the control device is respectively connected with the driving system of the motor to be tested and the driving system of the simulation motor through control lines.
Preferably, the operation state data includes:
the temperature of the fuel cell stack, the temperature of the first inverter, the rotation speed of the motor to be tested, and the vibration frequency of the motor to be tested.
Compared with the prior art, the invention has the advantages that:
the invention can simulate different driving states of the fuel cell automobile through the testing module, then obtain the operation state data of the driving system of the fuel cell automobile, and judge whether the operation state data is available, thereby obtaining the operation conditions and the testing results of the driving system under different driving states. Compared with a mode of directly carrying out real vehicle testing, the driving state that can be simulated by the method is more, so that the testing result of the driving system in more running states can be obtained, the driving system is rapidly tested and comprehensively tested, and the running condition of the driving system of the fuel cell vehicle in each driving state can be comprehensively reflected by the testing result.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
Fig. 1 is a diagram of an exemplary embodiment of a testing platform of a power driving system for a fuel cell vehicle according to the present invention.
FIG. 2 is a diagram of an exemplary embodiment of a test module according to the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As shown in fig. 1, the present invention provides a testing platform for a power driving system for a fuel cell vehicle, which includes a testing module, a data acquiring module, a data processing module and a data storing module;
the test module is used for simulating the running state of the fuel cell automobile and testing the driving system of the fuel cell automobile;
the data acquisition module is used for acquiring running state data of the fuel cell automobile driving system in the running state and sending the running state data to the data processing module;
the data processing module is used for judging whether the running state data is abnormal or not to obtain a judgment result, and sending the running state data and the corresponding judgment result to the data storage module;
and the data storage module is used for storing the running state data and the corresponding judgment result.
Preferably, the determining whether the operation state data is abnormal includes:
and judging whether the running state data exceeds a preset normal value range, if so, judging that the running state data is abnormal, and if not, judging that the running state data is normal.
In the subsequent analysis process, the driving state when the state data is abnormal can be intensively analyzed, so that the efficiency of testing the driving system is improved.
The acquisition of the state data is mainly realized by various sensors, such as a temperature sensor, a rotation speed sensor, a vibration sensor, and the like.
Preferably, as shown in fig. 2, the test module includes a driving system to be tested, a simulation system and a control device; the driving system to be tested is connected with the simulation system; the control device is respectively connected with the driving system to be tested and the simulation system.
The simulation system is mainly used for simulating different running states of the fuel cell automobile,
preferably, the driving system to be tested comprises a fuel cell stack, a first inverter and a motor to be tested; the fuel cell stack, the first inverter and the motor to be tested are sequentially connected; the fuel cell stack is used for providing direct current for the first inverter, and the first inverter is used for converting the direct current into alternating current and transmitting the alternating current to the motor to be tested.
The connection may be made by a cable.
Preferably, the simulation system comprises a direct current power supply end, a second inverter and a simulation motor; the direct current power supply end, the second inverter and the analog motor are sequentially connected; the direct current power supply end is used for supplying direct current to the second inverter; the second inverter is used for converting the direct current into alternating current and transmitting the alternating current to the analog motor.
Because the simulation system is not tested, the fuel cell pack in the driving system to be tested is replaced by the direct current power source end, and the direct current power source end directly obtains electric energy from the power grid, so that the complexity of the test platform is reduced.
Preferably, the rotating shaft of the motor to be tested and the rotating shaft of the simulation motor are connected through a coupler.
After the coupling is connected, various states simulated by the simulation motor can be transmitted to the motor to be tested.
Preferably, the control device is connected to the driving system to be tested and the simulation system respectively, and includes:
and the control device is respectively connected with the driving system of the motor to be tested and the driving system of the simulation motor through control lines.
The controller includes a CAN bus or the like.
The control device is mainly used for controlling parameters such as the rotating speed, the rotating direction and the like of the motor to be tested and the simulation motor through the driving system so as to realize the simulation of different running states of the fuel cell automobile
Preferably, the operation state data includes:
the temperature of the fuel cell stack, the temperature of the first inverter, the rotation speed of the motor to be tested, and the vibration frequency of the motor to be tested.
Preferably, the data storage module comprises a data security verification unit, a storage unit and an operation unit;
the safety verification unit is used for verifying the authority of a worker using the operation unit, and the worker is allowed to use the operation unit after the worker passes the authority verification;
the operation unit is used for managing the running state data stored in the storage unit and the corresponding judgment result;
the storage unit is used for storing the running state data and the corresponding judgment result sent by the data processing module.
Preferably, the managing comprises:
and inquiring, modifying or deleting the running state data and the judgment result stored in the storage unit.
Preferably, the security verification unit comprises a photographing subunit, a feature extraction subunit and a permission verification subunit;
the photographing sub-unit is used for acquiring a face image of a worker using the operation unit;
the feature extraction subunit is used for extracting feature information contained in the face image;
the authority verification subunit is used for matching the characteristic information with the characteristic information of the face image of the person with the authority of using the operation unit, which is stored in the storage unit, and if the matching is successful, the authority verification subunit indicates that the worker passes the identity verification, otherwise, the authority verification subunit indicates that the worker does not pass the identity verification.
Preferably, the extracting feature information included in the face image includes:
carrying out gray processing on the face image to obtain a gray image;
carrying out user-defined noise reduction processing on the gray level image to obtain a noise reduction image:
performing wavelet decomposition on the gray level image to obtain a wavelet high-frequency coefficient and a wavelet low-frequency coefficient;
performing soft threshold processing on the wavelet high-frequency coefficient to obtain a processed wavelet high-frequency coefficient;
and performing the following processing on the wavelet low-frequency coefficient:
where df denotes a wavelet low frequency coefficient before processing, bdf denotes a result of the above-described processing on df, th denotes a preset processing threshold,
s represents a preset judgment coefficient, and noic represents the standard deviation of the pixel value of each pixel point in df;
reconstructing the processed wavelet high-frequency coefficient sum bdf to obtain a noise-reduced image;
and performing feature extraction on the noise-reduced image by using an image feature extraction algorithm to obtain feature information.
In the above embodiment of the present invention, by performing wavelet decomposition on the grayscale image and then processing the wavelet high frequency coefficient and the wavelet low frequency coefficient obtained by the wavelet decomposition, more detailed information can be retained for the grayscale image while effectively removing noise in the grayscale image. Specifically, when the wavelet low-frequency coefficient is processed, different processing functions are set for the wavelet low-frequency coefficient under different conditions, so that the processing is more targeted, and the denoising quality of the denoising image obtained by reconstruction is improved.
Compared with the prior art, the invention has the advantages that:
the invention can simulate different driving states of the fuel cell automobile through the testing module, then obtain the operation state data of the driving system of the fuel cell automobile, and judge whether the operation state data is available, thereby obtaining the operation conditions and the testing results of the driving system under different driving states. Compared with a mode of directly carrying out real vehicle testing, the driving state that can be simulated by the method is more, so that the testing result of the driving system under more running states can be obtained, and the quick testing and the comprehensive testing of the driving system are realized.
While embodiments of the invention have been shown and described, it will be understood by those skilled in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. A power driving system test platform for a fuel cell vehicle is characterized by comprising a test module, a data acquisition module, a data processing module and a data storage module;
the test module is used for simulating the running state of the fuel cell automobile and testing the driving system of the fuel cell automobile;
the data acquisition module is used for acquiring running state data of the fuel cell automobile driving system in the running state and sending the running state data to the data processing module;
the data processing module is used for judging whether the running state data is abnormal or not to obtain a judgment result, and sending the running state data and the corresponding judgment result to the data storage module;
and the data storage module is used for storing the running state data and the corresponding judgment result.
2. The power driving system test platform for the fuel cell automobile according to claim 1, wherein the test module comprises a driving system to be tested, a simulation system and a control device;
the driving system to be tested is connected with the simulation system;
the control device is respectively connected with the driving system to be tested and the simulation system.
3. The test platform for the power driving system for the fuel cell automobile according to claim 2, wherein the driving system to be tested comprises a fuel cell stack, a first inverter and a motor to be tested;
the fuel cell stack, the first inverter and the motor to be tested are sequentially connected;
the fuel cell stack is used for providing direct current for the first inverter, and the first inverter is used for converting the direct current into alternating current and transmitting the alternating current to the motor to be tested.
4. The testing platform for the power driving system of the fuel cell automobile as claimed in claim 3, wherein the simulation system comprises a direct current power supply end, a second inverter and a simulation motor;
the direct current power supply end, the second inverter and the analog motor are sequentially connected;
the direct current power supply end is used for supplying direct current to the second inverter;
the second inverter is used for converting the direct current into alternating current and transmitting the alternating current to the analog motor.
5. The testing platform of the power driving system for the fuel cell automobile as recited in claim 4, wherein the rotating shaft of the motor to be tested and the rotating shaft of the simulation motor are connected through a coupling.
6. The testing platform of power driving system for fuel cell vehicle as claimed in claim 5, wherein the control device is connected to the driving system under test and the simulation system respectively, and comprises:
and the control device is respectively connected with the driving system of the motor to be tested and the driving system of the simulation motor through control lines.
7. The testing platform of the power driving system for the fuel cell automobile according to claim 3, wherein the operation state data comprises:
the temperature of the fuel cell stack, the temperature of the first inverter, the rotation speed of the motor to be tested, and the vibration frequency of the motor to be tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110298601.5A CN113155473A (en) | 2021-03-19 | 2021-03-19 | Power drive system test platform for fuel cell automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110298601.5A CN113155473A (en) | 2021-03-19 | 2021-03-19 | Power drive system test platform for fuel cell automobile |
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| CN113155473A true CN113155473A (en) | 2021-07-23 |
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| CN202110298601.5A Withdrawn CN113155473A (en) | 2021-03-19 | 2021-03-19 | Power drive system test platform for fuel cell automobile |
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2021
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Application publication date: 20210723 |
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