CN113359677A - Test system of gearbox control unit - Google Patents
Test system of gearbox control unit Download PDFInfo
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- CN113359677A CN113359677A CN202110702204.XA CN202110702204A CN113359677A CN 113359677 A CN113359677 A CN 113359677A CN 202110702204 A CN202110702204 A CN 202110702204A CN 113359677 A CN113359677 A CN 113359677A
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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Abstract
The invention discloses a test system of a gearbox control unit. The test system includes: the method comprises the following steps: the system comprises an upper computer subsystem, a hardware-in-loop platform and a gearbox control unit, wherein the upper computer subsystem and the hardware-in-loop platform are connected through an Ethernet, and the hardware-in-loop platform and the gearbox control unit are connected through a CAN bus and a hard wire; the upper computer subsystem is used for storing the function information of the gearbox control unit, the test rule corresponding to the function information and the evaluation standard, generating a test instruction according to the function information of the gearbox control unit, the test rule corresponding to the function information and the evaluation standard, and sending the test instruction to the hardware-in-loop platform, so that the hardware-in-loop platform sends the test instruction to the gearbox control unit.
Description
Technical Field
The embodiment of the invention relates to the technical field of testing, in particular to a testing system of a gearbox control unit.
Background
With the development of economy and the continuous improvement of the living standard of people, automobiles are undoubtedly becoming the living necessities of many people. With the development of automotive electronics, almost all functions in a vehicle cannot be controlled by an electronic control unit. Therefore, in order to improve the safety and the comfort of the whole vehicle, the system integration test of the electric control unit is more important.
The Transmission Control Unit (TCU) is one of core controllers of a conventional power system of a power vehicle, and is in communication with an engine Control Unit EMS through a CAN bus according to input of a sensor signal, and based on a shift lever P/R/N/D shift request, shift switching of a Transmission is realized. Meanwhile, the TCU is communicated with an ESP (electronic stability program) and an ABS (anti-lock brake system) of the vehicle body through the CAN bus, and key information such as vehicle speed and wheel speed is acquired, so that automatic gear shifting is realized.
At present, most tests on a gearbox control unit adopt a real vehicle test mode, the real vehicle test has limitations, and some extreme working condition tests and fault diagnosis tests are difficult to completely cover in a real vehicle environment. Therefore, it is necessary that a reasonably designed automated test-based device complement real-vehicle testing.
Disclosure of Invention
The embodiment of the invention provides a test system of a gearbox control unit, which is used for realizing the test of the gearbox control unit under the unmanned condition, and various test working conditions and fault diagnosis tests can be comprehensively covered.
In a first aspect, an embodiment of the present invention provides a test system for a transmission control unit, including:
the system comprises an upper computer subsystem, a hardware-in-loop platform and a gearbox control unit, wherein the upper computer subsystem and the hardware-in-loop platform are connected through an Ethernet, and the hardware-in-loop platform and the gearbox control unit are connected through a CAN bus and a hard wire;
the upper computer subsystem is used for storing the function information of the gearbox control unit, the test rule and the evaluation standard corresponding to the function information, generating a test instruction according to the function information of the gearbox control unit, the test rule and the evaluation standard corresponding to the function information, and sending the test instruction to the hardware-in-loop platform so that the hardware-in-loop platform sends the test instruction to the gearbox control unit.
Further, the upper computer subsystem includes: the system comprises a database module, a test sequence module and an automatic test module, wherein the database module is connected with the test sequence module, and the test sequence module is connected with the automatic test module;
the database module is used for storing the function information of the gearbox control unit, the test rule corresponding to the function information and the evaluation standard, and sending the function information of the gearbox control unit, the test rule corresponding to the function information and the evaluation standard to the test sequence module;
the test sequence module is used for constructing a test sequence according to the function information of the gearbox control unit in the database module, the test rule corresponding to the function information and the evaluation standard, and sending the test sequence to the automatic test module;
the automatic test module: the hardware-in-loop platform is used for sending the test instruction corresponding to the test sequence to the hardware-in-loop platform;
the hardware-in-loop platform is used for receiving the test instruction, testing the gearbox control unit according to the test instruction to obtain a test result, sending the test result to the automatic test module, enabling the automatic test module to compare the test result with the evaluation standard, and generating a test report according to the test result and the comparison result.
Further, the host computer still includes: the first fault injection module is connected with the hardware-in-the-loop platform;
and the first fault injection module is used for simulating an electrical fault on the ring platform through control hardware according to the fault to be diagnosed input by a user.
Further, the database module comprises: a basic function library, a test condition library, an evaluation criterion library and a test sequence library;
the basic function library is used for storing function information of the gearbox control unit;
the test working condition library is used for storing a test rule corresponding to each piece of functional information of the gearbox control unit;
the evaluation criterion library is used for storing and determining whether the test result meets the evaluation criterion of the functional requirement;
and the test sequence library is used for storing the target test sequence.
Further, the database module further includes: a test parameter library;
and the test parameter library is used for storing test parameters corresponding to the test rules.
Further, the test sequence module is further configured to:
constructing a test sequence according to the function information of the gearbox control unit in the database module, the test rule corresponding to the function information and the evaluation standard;
updating the test sequence according to the test parameters corresponding to the test rules in the database module;
and sending the updated test sequence to the automatic test module.
Further, the hardware-in-the-loop platform further includes:
and the second fault injection module is used for injecting the fault to be diagnosed sent by the first fault injection module into the gearbox control unit.
Further, the first fault injection module is used for simulating an electrical fault by controlling a second fault injection module of the hardware in the ring platform according to a test requirement input by a user, and the fault is injected into the gearbox control unit through the second fault injection module.
Further, the hardware-in-the-loop platform further includes: the system comprises a real-time processor and a CAN board card, wherein the real-time processor is connected with the CAN board card through a PXIe bus.
Further, the transmission control unit is further configured to: and obtaining a test result, and sending the test result to the automatic test module through the CAN board card and the real-time processor.
The embodiment of the invention provides a test system of a gearbox control unit, which comprises the following components: the system comprises an upper computer subsystem, a hardware-in-loop platform and a gearbox control unit, wherein the upper computer subsystem and the hardware-in-loop platform are connected through an Ethernet, and the hardware-in-loop platform and the gearbox control unit are connected through a CAN bus and a hard wire; the upper computer subsystem is used for storing the function information of the gearbox control unit, the test rule and the evaluation standard corresponding to the function information, generating a test instruction according to the function information of the gearbox control unit, the test rule and the evaluation standard corresponding to the function information, and sending the test instruction to the hardware-in-loop platform so that the hardware-in-loop platform sends the test instruction to the gearbox control unit. The test of the gearbox control unit can be carried out under the unmanned operation condition, and various test working conditions and fault diagnosis tests can be covered comprehensively.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a test system of a transmission control unit according to a first embodiment of the present invention;
FIG. 2 is a diagram of a structure of an upper computer of an automated testing device of a transmission control unit according to a first embodiment of the present invention;
fig. 3 is a diagram of a hardware-in-the-loop platform and a transmission control unit according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Example one
Fig. 1 is a schematic structural diagram of a test system of a transmission control unit according to an embodiment of the present invention. The present embodiment may be applicable to a case of testing a transmission control unit, where the apparatus may be implemented in a software and/or hardware manner, and as shown in fig. 1, the test system of the transmission control unit specifically includes: the upper computer subsystem 1, the hardware are a ring platform 2 and a gearbox control unit 3.
The system comprises an upper computer subsystem, a hardware-in-loop platform and a gearbox control unit, wherein the upper computer subsystem and the hardware-in-loop platform are connected through an Ethernet, and the hardware-in-loop platform and the gearbox control unit are connected with a hard wire through a CAN bus;
the upper computer subsystem is used for storing the function information of the gearbox control unit, the test rule and the evaluation standard corresponding to the function information, generating a test instruction according to the function information of the gearbox control unit, the test rule and the evaluation standard corresponding to the function information, and sending the test instruction to the hardware-in-loop platform so that the hardware-in-loop platform sends the test instruction to the gearbox control unit.
Optionally, the upper computer subsystem includes: the system comprises a database module, a test sequence module and an automatic test module, wherein the database module is connected with the test sequence module, and the test sequence module is connected with the automatic test module;
the database module is used for storing the function information of the gearbox control unit, the test rule corresponding to the function information and the evaluation standard, and sending the function information of the gearbox control unit, the test rule corresponding to the function information and the evaluation standard to the test sequence module;
the test sequence module is used for constructing a test sequence according to the function information of the gearbox control unit in the database module, the test rule corresponding to the function information and the evaluation standard, and sending the test sequence to the automatic test module;
the automatic test module: the hardware-in-loop platform is used for sending the test instruction corresponding to the test sequence to the hardware-in-loop platform;
the hardware-in-loop platform is used for receiving the test instruction, testing the gearbox control unit according to the test instruction to obtain a test result, sending the test result to the automatic test module, enabling the automatic test module to compare the test result with the evaluation standard, and generating a test report according to the test result and the comparison result.
Optionally, the host computer still includes: the first fault injection module is connected with the hardware-in-the-loop platform;
and the first fault injection module is used for simulating an electrical fault on the ring platform through control hardware according to the fault to be diagnosed input by a user.
Optionally, the database module includes: a basic function library, a test condition library, an evaluation criterion library and a test sequence library;
the basic function library is used for storing function information of the gearbox control unit;
the test working condition library is used for storing a test rule corresponding to each piece of functional information of the gearbox control unit;
the evaluation criterion library is used for storing and determining whether the test result meets the evaluation criterion of the functional requirement;
and the test sequence library is used for storing the target test sequence.
The target test sequence can be a more common test sequence, and the more common test sequence is stored in a test sequence library and can be conveniently called.
Optionally, the database module further includes: a test parameter library;
and the test parameter library is used for storing test parameters corresponding to the test rules.
Optionally, the test sequence module is further configured to:
constructing a test sequence according to the function information of the gearbox control unit in the database module, the test rule corresponding to the function information and the evaluation standard;
updating the test sequence according to the test parameters corresponding to the test rules in the database module;
and sending the updated test sequence to the automatic test module.
Illustratively, different test sequences may be generated by selecting different parameters.
Optionally, the hardware-in-the-loop platform further includes:
and the second fault injection module is used for injecting the fault to be diagnosed sent by the first fault injection module into the gearbox control unit.
Optionally, the first fault injection module is configured to simulate an electrical fault by controlling a second fault injection module of the hardware in the ring platform according to a test requirement input by a user, and the fault is injected into the transmission control unit through the second fault injection module.
Optionally, the hardware-in-the-loop platform further includes: the system comprises a real-time processor and a CAN board card, wherein the real-time processor is connected with the CAN board card through a PXIe bus.
Optionally, the gearbox control unit is further configured to: and obtaining a test result, and sending the test result to the automatic test module through the CAN board card and the real-time processor.
Optionally, the method further includes: the CAN bus diagnosis equipment is connected with the automatic test module;
and the CAN bus diagnosis equipment is used for reading the fault code and completing fault diagnosis test.
Optionally, the automated testing module is further configured to:
and receiving the test result transmitted by the real-time processor, comparing the test result with the evaluation standard stored in the evaluation criterion library and generating a test report.
In one particular example, a test system for a transmission control unit includes: the upper computer subsystem, the hardware-in-the-loop platform and the gearbox control unit; the upper computer subsystem is connected with the hardware-in-the-loop platform through the Ethernet; the hardware-in-the-loop platform is connected with the gearbox control unit through a CAN bus and a hard wire.
The upper computer subsystem includes: the system comprises a database module, a test sequence module and an automatic test module; the database module comprises a basic function library, a test working condition library, an evaluation criterion library, a test parameter library and a test sequence library.
Basic function library: for describing the specific function of the gearbox control unit.
Testing a working condition library: the method is used for qualitatively describing the specific operation steps of each specific function test method of the gearbox control unit.
Testing a parameter library: for quantifying specific parameters of each operating step of the test method.
Evaluation criteria library: for storing evaluation criteria for determining whether the test results meet the functional requirements.
A test sequence module: the system comprises a basic function library, a test condition library, an evaluation criterion library and a test result library, wherein the basic function library is used for calling specific operation steps described by the test condition library corresponding to each specific function and the evaluation criterion stored in the evaluation criterion library to construct an executable test sequence; and may update the test sequence.
The automatic test module: the system is used for executing an automatic test process, sending instructions corresponding to the test sequence to a real-time processor of the hardware-in-loop platform, receiving a result transmitted by the real-time processor, and comparing the result with an evaluation standard stored in an evaluation criterion library.
The hardware-in-loop platform comprises a real-time processor and a CAN board card; the real-time processor is connected with the CAN board card through a PXIe bus; the control instruction sent by the automatic test module is sent to a gearbox control unit through a real-time processor and a CAN board card; and the execution result of the execution control module returns to the automatic test module through the gearbox control unit, the CAN board card and the real-time processor.
Further, the hardware-in-the-loop platform further comprises a second fault injection module; the communication fault is injected into the gearbox control unit through the second fault injection module; and a communication fault test result is returned to the automatic test module through the gearbox control unit, the CAN board card and the real-time processor.
The control signal that host computer subsystem sent send for gearbox control unit through real-time processor, CAN integrated circuit board, IO integrated circuit board, the execution module carries out corresponding action according to the control signal and the current operating mode that gearbox control unit sent, the execution result returns automated test module through gearbox control unit, CAN integrated circuit board and real-time processor, and then forms closed-loop control.
The embodiment of the invention has the following beneficial effects: the testing personnel do not need to carry out repeated and tedious testing work, the gearbox control unit can be tested only by building a testing sequence in the early stage, and the fault injection of the gearbox control unit can be diagnosed and tested. Compared with the real vehicle test, the test period and the cost are greatly reduced, and the test efficiency is improved.
Under the condition that the use cases and the test sequences are built, the embodiment of the invention can continuously run for hours under the condition of no operation, and automatically generate the test reports and the logs; and fault tests such as system power supply abnormity, signal communication abnormity and the like can be carried out under the condition of unmanned operation, so that the problems of low efficiency, high danger, poor repeatability, incomplete coverage, high possibility of errors and the like of the conventional pure real vehicle test are solved.
As shown in fig. 1, the automatic testing device based on the automobile transmission control unit of the invention comprises an upper computer subsystem 1, a hardware-in-loop platform 2 and a transmission control unit 3; the upper computer subsystem 1 is connected with the hardware-in-the-loop platform 2 through the Ethernet; the hardware-in-the-loop platform 2 is connected with the gearbox control unit 3 through a CAN bus and a hard wire.
As shown in fig. 2, the host computer subsystem 1 includes: database module 11, test sequence module 12, automated test module 13, first fault injection module 14.
The database module 11 includes a basic function library 111, a test condition library 112, an evaluation criterion library 113, a test parameter library 114 and a test sequence library 115.
Basic function library: for describing the specific function of the gearbox control unit.
Testing a working condition library: the method is used for qualitatively describing the specific operation steps of each specific function test method of the gearbox control unit.
Testing a parameter library: for quantifying specific parameters of each operating step of the test method.
Evaluation criteria library: for storing evaluation criteria for determining whether the test results meet the functional requirements.
Test sequence module 12: the method is used for calling specific operation steps described by the test condition library 112 corresponding to each specific function and evaluation criteria stored by the evaluation criterion library 113 according to the basic function library 111, constructing an executable test sequence, and updating the test sequence.
The automatic test module 13: the system is used for executing an automatic test process, sending instructions corresponding to the test sequences to the real-time processor 21 of the hardware-in-the-loop platform 2, receiving the test results sent by the real-time processor 21, comparing the test results with the evaluation standards stored in the evaluation criterion library, and generating a test report.
As shown in fig. 3, the hardware-in-the-loop platform 2 includes a real-time processor 21, an IO board 22, a fault injection board 23, and a CAN board 24; the real-time processor 21 and the CAN board 24 are connected through a PXIe bus.
Vehicle states, such as vehicle state information of ignition, gears, vehicle speed and the like are all given by a vehicle dynamics model, and a test sequence instruction sent by the automatic test module 13 is sent to the gearbox control unit 3 through the real-time processor 21 and the CAN board card 24; the execution result of the execution control module is returned to the automatic test module 13 through the gearbox control unit 3, the CAN board card 24 and the real-time processor 21.
When the hardware is controlled to be on the ring platform 2 through the automatic testing module 13 in the upper computer 1, the vehicle state is changed, for example, the vehicle dynamics model 212 controls the system to ignite, the shifter model controls the vehicle to be in a forward gear, the road condition/condition change model 213 controls the system to be in a corresponding virtual driving scene, and the gearbox control unit 3 controls the downstream actuator system to execute a gear shifting action according to the conditions and the scene, so that gear shifting is completed, the vehicle is controlled to run, and the gear shifting function test is completed.
When the vehicle is in the running state, the gearbox control unit 3 can complete the gear shifting function test under different working conditions according to different vehicle speeds and ignition states.
Example two
As shown in FIG. 1, the automatic testing device based on the automobile gearbox control unit comprises an upper computer subsystem 1, a hardware-in-loop platform 2 and a gearbox control unit; the upper computer subsystem 1 is connected with the hardware-in-the-loop platform 2 through the Ethernet; the hardware-in-the-loop platform 2 is connected with the gearbox control unit 3 through a CAN bus and a hard wire.
As shown in fig. 2, the host computer subsystem 1 includes: database module 11, test sequence module 12, automated test module 13, first fault injection module 14.
The database module 11 comprises a basic function library 111, a test condition library 112, an evaluation criterion library 113, a test parameter library 114 and a test sequence library 115.
Basic function library: for describing the specific function of the gearbox control unit.
Testing a working condition library: the method is used for qualitatively describing the specific operation steps of each specific function test method of the gearbox control unit.
Testing a parameter library: for quantifying specific parameters of each operating step of the test method.
Evaluation criteria library: for storing evaluation criteria for determining whether the test results meet the functional requirements.
Test sequence module 12: the system comprises a basic function library 111, an evaluation criterion library 113, a test condition library 112 and a test result library, wherein the basic function library is used for calling specific operation steps described by the test condition library 112 corresponding to each specific function and the evaluation criterion stored in the evaluation criterion library 113 to construct an executable test sequence; and may update the test sequence.
The automatic test module 13: the system is used for executing an automatic test process, sending instructions corresponding to the test sequences to the real-time processor 21 of the hardware-in-the-loop platform 2, receiving the test results sent by the real-time processor 21, comparing the test results with the evaluation standards stored in the evaluation criterion library, and generating a test report.
The first fault injection module 14: the fault injection board 23 is used for simulating electrical faults, such as open circuit, short circuit and the like, by controlling hardware in the ring platform 2 according to test requirements. Faults are injected into the gearbox control unit 3 through the fault injection board card 23; the test result is returned to the automatic test module 14 through the gearbox control unit 3, the CAN board card 24 and the real-time processor 21.
When a certain fault is injected through the first fault injection module 14 in the upper computer 1, the system injects the corresponding fault into the gearbox control unit 3 through the fault injection board card 23 in the hardware-in-loop platform 2, the test result returns to the automatic test module 14 through the gearbox control unit 3, the CAN board card 24 and the real-time processor 21, and the CAN bus diagnostic equipment reads the corresponding fault code to complete the fault diagnosis test.
As shown in fig. 3, the hardware-in-the-loop platform 2 includes a real-time processor 21, an IO board 22, a fault injection board 23, and a CAN board 24; the real-time processor 21 and the CAN board 24 are connected through a PXIe bus.
In summary, the tester does not have to perform such repetitive and tedious testing tasks, but only needs to initiate system testing and examine test reports. Compared with a real vehicle test, the test period and the test cost are greatly reduced, the test efficiency is improved, and the test coverage and the test depth are increased.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
The embodiment provides a test system of a gearbox control unit, the test system of the gearbox control unit comprises: the system comprises an upper computer subsystem, a hardware-in-loop platform and a gearbox control unit, wherein the upper computer subsystem and the hardware-in-loop platform are connected through an Ethernet, and the hardware-in-loop platform and the gearbox control unit are connected through a CAN bus and a hard wire; the upper computer subsystem is used for storing the function information of the gearbox control unit, the test rule and the evaluation standard corresponding to the function information, generating a test instruction according to the function information of the gearbox control unit, the test rule and the evaluation standard corresponding to the function information, and sending the test instruction to the hardware-in-loop platform so that the hardware-in-loop platform sends the test instruction to the gearbox control unit. The test of the gearbox control unit can be carried out under the unmanned operation condition, and various test working conditions and fault diagnosis tests can be covered comprehensively.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A test system for a transmission control unit, comprising: the system comprises an upper computer subsystem, a hardware-in-loop platform and a gearbox control unit, wherein the upper computer subsystem and the hardware-in-loop platform are connected through an Ethernet, and the hardware-in-loop platform and the gearbox control unit are connected through a CAN bus and a hard wire;
the upper computer subsystem is used for storing the function information of the gearbox control unit, the test rule and the evaluation standard corresponding to the function information, generating a test instruction according to the function information of the gearbox control unit, the test rule and the evaluation standard corresponding to the function information, and sending the test instruction to the hardware-in-loop platform so that the hardware-in-loop platform sends the test instruction to the gearbox control unit.
2. The test system of claim 1, wherein the host computer subsystem comprises: the system comprises a database module, a test sequence module and an automatic test module, wherein the database module is connected with the test sequence module, and the test sequence module is connected with the automatic test module;
the database module is used for storing the function information of the gearbox control unit, the test rule corresponding to the function information and the evaluation standard, and sending the function information of the gearbox control unit, the test rule corresponding to the function information and the evaluation standard to the test sequence module;
the test sequence module is used for constructing a test sequence according to the function information of the gearbox control unit in the database module, the test rule corresponding to the function information and the evaluation standard, and sending the test sequence to the automatic test module;
the automatic test module: the hardware-in-loop platform is used for sending the test instruction corresponding to the test sequence to the hardware-in-loop platform;
the hardware-in-loop platform is used for receiving the test instruction, testing the gearbox control unit according to the test instruction to obtain a test result, sending the test result to the automatic test module, enabling the automatic test module to compare the test result with the evaluation standard, and generating a test report according to the test result and the comparison result.
3. The test system of claim 2, wherein the upper computer further comprises: the first fault injection module is connected with the hardware-in-the-loop platform;
and the first fault injection module is used for simulating an electrical fault on the ring platform through control hardware according to the fault to be diagnosed input by a user.
4. The test system of claim 2, wherein the database module comprises: a basic function library, a test condition library, an evaluation criterion library and a test sequence library;
the basic function library is used for storing function information of the gearbox control unit;
the test working condition library is used for storing a test rule corresponding to each piece of functional information of the gearbox control unit;
the evaluation criterion library is used for storing and determining whether the test result meets the evaluation criterion of the functional requirement;
and the test sequence library is used for storing the target test sequence.
5. The test system of claim 4, wherein the database module further comprises: a test parameter library;
and the test parameter library is used for storing test parameters corresponding to the test rules.
6. The test system of claim 5, wherein the test sequence module is further configured to:
constructing a test sequence according to the function information of the gearbox control unit in the database module, the test rule corresponding to the function information and the evaluation standard;
updating the test sequence according to the test parameters corresponding to the test rules in the database module;
and sending the updated test sequence to the automatic test module.
7. The test system of claim 3, wherein the hardware-in-loop platform further comprises:
and the second fault injection module is used for injecting the fault to be diagnosed sent by the first fault injection module into the gearbox control unit.
8. The test system of claim 7, wherein the first fault injection module is configured to simulate an electrical fault by controlling a second fault injection module of the hardware in a ring platform, the fault being injected into the transmission control unit via the second fault injection module, according to a user-entered test requirement.
9. The test system of claim 2, wherein the hardware-in-loop platform further comprises: the system comprises a real-time processor and a CAN board card, wherein the real-time processor is connected with the CAN board card through a PXIe bus.
10. The test system of claim 9, wherein the transmission control unit is further configured to: and obtaining a test result, and sending the test result to the automatic test module through the CAN board card and the real-time processor.
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| CN115016441A (en) * | 2022-06-30 | 2022-09-06 | 中国第一汽车股份有限公司 | Automatic test system and method for vehicle remote control |
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