CN201909993U - Test device of automotive electronic control system - Google Patents
Test device of automotive electronic control system Download PDFInfo
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- CN201909993U CN201909993U CN 201020225649 CN201020225649U CN201909993U CN 201909993 U CN201909993 U CN 201909993U CN 201020225649 CN201020225649 CN 201020225649 CN 201020225649 U CN201020225649 U CN 201020225649U CN 201909993 U CN201909993 U CN 201909993U
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- 238000012360 testing method Methods 0.000 title claims abstract description 94
- 239000000969 carrier Substances 0.000 claims abstract description 5
- 230000003993 interaction Effects 0.000 claims description 5
- 238000010998 test method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 230000007613 environmental effect Effects 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 230000002452 interceptive effect Effects 0.000 abstract description 5
- 230000006870 function Effects 0.000 description 5
- 230000002457 bidirectional effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
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- 238000013178 mathematical model Methods 0.000 description 1
- 238000004092 self-diagnosis Methods 0.000 description 1
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Abstract
The utility model discloses a test device of an automotive electronic control system. The test device tests the automotive electronic control system required to be tested by a human-computer interface device implementing the testing process. The test device consists of an environmental model, a test model and carriers, wherein the carriers are used for the running of the environmental model and the test model respectively, the human-computer interface device is a PC (Personal Computer), and the human-computer interface device provides an interactive interface between the test device and a user. The test device of the automotive electronic control system can be used in the automotive electronic control system for hardware loop test, has a simple structure and is easy to operate and convenient to implement.
Description
Technical Field
The utility model relates to a car electronic control system's test equipment, wherein, the car electronic control system that awaits measuring can be one (like engine control system), several (like engine control system and gearbox control system and braking anti-lock braking control system), also can be the control network that all electronic control system constitute on the car.
Background
A typical electronic control system for a vehicle, such as an Electronic Control Unit (ECU) for the vehicle, is an electronic control device widely used in the field of vehicles, which adjusts and calibrates the vehicle by measuring the operating state of each component of the vehicle.
When an Electronic Control Unit (ECU) of an automobile is developed and developed, the following development procedures and/or development methods are widely adopted: in the functional design and development stage, a mathematical model of an automobile electronic controller and a control object thereof is abstracted by means of a mathematical modeling tool (Matlab/Simulink), and the design is verified in a simulation mode.
In the Rapid Control Prototyping (RCP) phase, the model of the electronic control unit of the motor vehicle, which was abstracted out in the preceding phase, is then converted by means of a code generator into an executable program which runs on a hardware platform which can interact with the actual control object via a corresponding I/O interface.
And if the control effect is satisfactory, generating the executable code of the batch electronic controller hardware by the automobile electronic controller model abstracted by the code generator. Detailed testing, typically Hardware-In-The-Loop (HIL testing), is required before a batch of automotive electronic controllers can be used with The actual control objects.
In the HIL test, batch automobile electronic controller is connected with test equipment, simulates the function of the tested electronic controller on the test equipment by means of a vehicle model, transmits the state of the vehicle model to the electronic controller through sensor simulation, and simultaneously acquires the output of the electronic controller, thereby realizing the interactive relation between the electronic controller and the test equipment.
EP1898282A discloses a method and a device for testing an electronic control system, wherein it is mentioned that the control system can be a motor control device or a driving and engine dynamic model of a whole vehicle. The disclosure of the prior art is so broad and general that it would be difficult for a person skilled in the art to apply the disclosure to any specific field and/or control system when trying to put it into practice, for example, although the prior art refers to a car, how to apply it specifically to the car field lacks corresponding technical solutions, and the person skilled in the art would be difficult to put it into a specific direction in the car field, for example, the testing of an ECU, without any inventive effort.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a test equipment of automotive electronics control system to reduce or avoid the aforementioned problem.
In order to solve the technical problem, the utility model provides a test equipment of an automobile electronic control system, which tests the automobile electronic control system to be tested through a man-machine interface device implementing the test process, wherein the automobile electronic control system interacts with the test equipment through a bidirectional interface, and the man-machine interface device can display or influence the parameters of a model running in the test equipment; the test equipment consists of an environment model, a test model and carriers operated by the environment model and the test model respectively; the human-computer interface device is a PC, and provides an interaction interface between the test device and a user.
The utility model provides an above-mentioned automobile electronic control system's test equipment can specifically be applied to and carries out hardware at the return circuit test to automobile electronic control system, and its simple structure is simple and easy, is convenient for implement.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,
fig. 1 is a schematic structural view showing a test apparatus of an automotive electronic control system according to a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram of an embodiment of the test apparatus shown in FIG. 1.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.
An ECU is an electronic control system widely used in the automotive field, which adjusts and calibrates an automobile by measuring the operating state of each component of the automobile. The ECU is generally composed of a microprocessor (CPU), a memory (ROM, RAM), an input/output interface (I/O), an analog-to-digital converter (a/D), and a large-scale integrated circuit such as a shaper and a driver. In the ECU, the CPU is a core part, which has functions of operation and control, and also controls memories (ROM, RAM), input/output interfaces (I/O), and other external circuits in real time, and has a fault self-diagnosis and protection function. The utility model discloses in, ECU is only the product that is used for the test, promptly, after ECU produces into the sample through the design, need test it to judge whether it satisfies the designing requirement, perhaps whether be a qualified product.
The utility model discloses in so-called automobile electronic control system, not only confine to this specific model form of ECU, but the automobile electronic control system that any prior art can obtain, the utility model provides a testing arrangement is used for testing these automobile electronic control system to judge whether it is qualified. The electronic control system of the automobile to be tested can be one (such as an engine control system), a plurality of (such as the engine control system and a gearbox control system and a brake anti-lock control system) or a control network formed by all the electronic control systems on the automobile.
Fig. 1 is a schematic structural diagram of a testing device of an automotive electronic control system according to a preferred embodiment of the present invention, wherein 1 represents an automotive electronic control system to be tested; 2 represents the testing equipment of the utility model; and 3 represents a human interface device such as a PC or the like.
The electronic control system 1 of the vehicle is a control unit of an electronic control system of the vehicle, such as a control unit of an engine of the vehicle or a control unit of an automatic transmission. The test equipment is constructed to test the functions of the automotive electronic control system 1, for example, to perform the HIL test of the automotive electronic control system. The test process of the vehicle electronic control system 1 is carried out by a test device 2. In order to implement the test process, the automotive electronic control system 1 and the test equipment 2 are connected through a bidirectional interface, control system data of the automotive electronic control system 1 is transmitted to the test equipment 2 through an input interface of the test equipment 2, and the control system data can also be modified in the test equipment 2 and reversely transmitted to the automotive electronic control system 1 through an output interface of the test equipment 2. The human interface device 3 provides an interactive interface between the test device 2 and a user.
Fig. 2 shows a schematic structural diagram of an embodiment of the test apparatus shown in fig. 1, and the main body of the test apparatus 2 is two models, namely an environment model 4 and a test model 5, and a carrier for running the two models. The test of the electronic control system 1 of the vehicle must be established as a closed loop system with the object controlled by the electronic control system to be effective, for example, to test the function of an engine control system, the engine control system needs to be installed on the engine adapted to the engine control system. Different from the traditional test method, in the test device, the test equipment 2 runs the environment model 4 inside, and the environment model 4 simulates the real use environment of the automotive electronic control system 1, for example, if the automotive electronic control system to be tested is an engine control system, the corresponding environment model is the body model of the engine to which the engine control system is adapted. To ensure real-time performance of the environmental model, the carrier on which the environmental model operates is usually a real-time simulator. The actual use condition of the automotive electronic control system 1 is reflected to the automotive electronic control system 1 by the parameters of the environment model 4. The actual test procedure for the control system is not performed by the environment model 4, but by the test model 5. To ensure real-time performance, the environment model 4 is typically run on a real-time simulator, and the test model 5 is typically run on a laboratory PC.
The interaction relationship between the automotive electronic control system 1 and the environmental model 4 and the test model 5 is as follows: the automobile electronic control system 1 realizes bidirectional data interaction between the automobile electronic control system 1 and the environment model 4 through an input/output interface on a carrier, namely a real-time simulator and related devices, which runs by the environment model 4; the data interaction between the test model 5 and the environment model 4 is realized by a communication protocol, and the communication protocol is realized by the connection of a real-time simulator and a test PC, which are carriers operated by the two models.
The human interface device 3 provides an interactive interface between the test device 2 and a user. The user can modify the parameters and the test process of the test model 5 and the environment model 4 through the human-computer interface device 3, change the operating conditions of the automotive electronic control system 1, and also can check the test results of the automotive electronic control system 1. The human interface device 3 is typically a PC, said human interface device 3 providing an interactive interface between the test device 2 and a user, who can modify the parameters of the environment model 4 and the test process of the test model 5 through said human interface device 3. The PC can also be used as a carrier for the operation of the test model 5.
The human interface device 3 provides the user with an operator interface in which a new or existing environment model 4 can be created to adapt to the vehicle electronic control system 1 to be tested. In the testing device of the present invention, as long as the environment model is created by using a suitable software, such as MatLab/Simulink, the environment model 4 can be conveniently converted into a code that can be recognized by a machine by using a certain operation, and the code is run on the real-time simulation machine, which is a running carrier of the environment model 4.
The configuration of the test model 5 can likewise take place via the human interface device 3. The test pattern 5 is also created or modified on the human interface device 3 by means of suitable software and converted into machine-readable code to be run on a test PC, which is the carrier on which the test pattern runs. The test model 5 can be built by using software, such as NI/LabVIEW, and can be an automatic test process, and parameters of the environment model 4 can be manually modified to achieve the test purpose.
To facilitate modification of a variable in the environment model 4 when the environment model 4 is running, the names of all variables in the environment model 4 and their corresponding physical storage addresses may be stored in one storage file 6 during compilation of the environment model 4 into machine-recognizable code on the human-machine interface device 3. All variables in the environment model are represented by a uniquely identified identifier. The storage file 6 is generated during compilation of the environment model 4 and contains the correspondence between the variable identifiers and the physical storage addresses in the environment model 4. Thus, the test model 5 accesses and modifies the variables of the environment model 4 and can read the storage file 6 of the environment model variables. The test model 5 can access and modify the variables of the environmental model 4 without exchanging information with the environmental model 4 itself.
The utility model provides an above-mentioned automobile electronic control system's test equipment can specifically be applied to and carries out hardware at the return circuit test to automobile electronic control system, and its simple structure is simple and easy, is convenient for implement.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention.
Claims (1)
1. A test device for an automotive electronic control system, the test device (2) testing an automotive electronic control system (1) to be tested via a human-machine interface device (3) performing a test procedure, wherein the automotive electronic control system (1) interacts with the test device (2) via a bi-directional interface, the human-machine interface device (3) being capable of displaying or influencing parameters of a model running in the test device (2); the test equipment (2) consists of an environment model (4), a test model (5) and carriers operated by the environment model (4) and the test model (5) respectively; the human-computer interface device (3) is a PC, and the human-computer interface device (3) provides an interaction interface between the test device (2) and a user.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020225649 CN201909993U (en) | 2010-06-09 | 2010-06-09 | Test device of automotive electronic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020225649 CN201909993U (en) | 2010-06-09 | 2010-06-09 | Test device of automotive electronic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201909993U true CN201909993U (en) | 2011-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020225649 Expired - Lifetime CN201909993U (en) | 2010-06-09 | 2010-06-09 | Test device of automotive electronic control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201909993U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116991149A (en) * | 2023-09-28 | 2023-11-03 | 山西磊源电器有限责任公司 | Method and device for checking fee-controlled product, electronic equipment and storage medium |
-
2010
- 2010-06-09 CN CN 201020225649 patent/CN201909993U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116991149A (en) * | 2023-09-28 | 2023-11-03 | 山西磊源电器有限责任公司 | Method and device for checking fee-controlled product, electronic equipment and storage medium |
| CN116991149B (en) * | 2023-09-28 | 2023-12-08 | 山西磊源电器有限责任公司 | Method and device for checking fee-controlled product, electronic equipment and storage medium |
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| C14 | Grant of patent or utility model | ||
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110727 |