CN117930822A - Automatic test system and test method for automobile ECU - Google Patents
Automatic test system and test method for automobile ECU Download PDFInfo
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Abstract
The invention discloses an automatic test system and a test method for an automobile ECU, and belongs to the technical field of vehicle tests. The automated test system for an automobile ECU includes: the system comprises an ECU to be tested, a power supply master control line, a programmable power supply, an ECU power supply module, measuring equipment, an ECU network node module, a TCP routing module, CAPL script test execution modules and an upper computer. The invention provides an automatic test system and a test method for an automobile ECU, which have the advantages of high test efficiency, accurate and controllable voltage and current time and accurate and reproducible test results.
Description
Technical Field
The invention relates to an automatic test system and a test method for an automobile ECU, and belongs to the technical field of vehicle tests.
Background
Currently, an electronic control unit (ECU, ELECTRICAL CONTROL UNIT) controls various functions and systems mounted in a vehicle, and can be regarded as the brain of the vehicle.
Not only the engine has own ECU, automatic transmission, ABS system, vehicle-mounted entertainment video-audio system, four-wheel drive torque distribution system, active suspension system, safety airbag, safety belt system, etc., but also has own matched ECU. As ECU functions become more complex and the inter-dependencies between ECU's of various parts of the car become more complex. The workload and the complexity of the ECU test are continuously improved, and the test safety and the control of the test cost are required to be ensured, so that the demand for the simulation ECU test technology which can be realized in a laboratory environment is continuously increased, and the demand for the automation capability is also gradually increased.
Disclosure of Invention
The invention aims to solve the technical problems of overcoming the defects of the prior art and providing an automatic test system and a test method for an automobile ECU, which have the advantages of high test efficiency, accurate and controllable voltage and current time and accurate and reproducible test results.
In order to solve the technical problems, the technical scheme of the invention is as follows:
In one aspect, the present invention provides an automated test system for an automotive ECU comprising: the system comprises an ECU to be tested, a power supply master control line, a programmable power supply, an ECU power supply module, measuring equipment, an ECU network node module, a TCP routing module, CAPL script test execution modules and an upper computer.
The ECU network node module is used for building a CAN closed-loop bus for testing and power supply access for the ECU to be tested;
The power supply main control circuit is used for supplying power to the programmable power supply, the ECU power supply module and the measuring equipment, the output end of the programmable power supply is connected with the input end of the ECU power supply module, and the output end of the ECU power supply module is connected with the ECU network node module;
the measuring equipment is used for measuring the terminal resistance of the CAN communication port of the ECU to be measured and the waveform of the CAN signal;
the programmable power supply, the ECU power supply module and the measuring equipment are all connected with the upper computer through the TCP routing module, and the ECU network node module is connected with the upper computer;
The CAPL script test execution module is arranged in the upper computer, and the CAPL script test execution module is used for controlling the voltage of the programmable power supply and the ECU power supply module, receiving message information sent by the ECU to be tested, judging the validity of the message, generating a test result report, and recording CAN signal waveform data detected by the measuring equipment.
Further, the ECU network node module comprises a CAN bus interface of the ECU to be tested, KL30 and KL15 interfaces for simulating vehicle starting, and a CAN bus expansion node of the ECU to be tested.
Further, the measuring equipment comprises a universal meter and an oscilloscope, wherein the universal meter is used for measuring the terminal resistance of the CAN communication port of the ECU to be measured, and the oscilloscope is used for measuring the waveform of the CAN signal of the ECU to be measured.
Further, the system also comprises a CAN communication module, wherein the ECU network node module is connected with the upper computer through the CAN communication module.
In another aspect, the present invention provides a test method for an automated test system for an automotive ECU, comprising:
Step S1, networking connection and initialization are carried out on equipment in a system, the output voltage of a programmable power supply is adjusted to be the normal working voltage of an EUC to be tested, an oscilloscope working mode is set, and a universal meter testing range is set;
And step S2, controlling the programmable power supply and the ECU power supply module through the CAPL script test execution module, providing power for the ECU to be tested, monitoring message information sent by the ECU through the CAPL script test execution module, judging whether the ECU to be tested works normally according to the message information, generating a test result report, and recording CAN signal waveform data detected by the measuring equipment.
Further, the step S2 is to control the programmable power supply and the ECU power supply module through the CAPL script test execution module, and specifically includes the following steps:
Firstly, establishing a TCP link between a CAPL script test execution module and an ECU power supply module, sending an opening instruction to start a relay switch corresponding to the ECU power supply module, powering up an ECU to be tested, then monitoring appointed ECU message information by the CAPL script test execution module, and judging that the working state of the ECU to be tested is normal if the ECU message information is detected by the CAPL script test execution module;
Then, CAPL script test execution module calls voltage range measurement function and gives programmable power supply voltage parameter value;
if the formulated message is not detected, judging that the ECU state is not ready, returning a test error by the CAPL script test execution module, prompting the inspection equipment and executing power failure.
Further, the CAPL script test execution module calls a voltage range measurement function and gives a programmable power supply voltage parameter value, and specifically comprises the following steps:
setting the minimum output voltage of the programmable power supply to 9V, setting the maximum output voltage of the programmable power supply to 16V, and setting the initial output voltage of the programmable power supply to 12V;
sequentially reducing the output voltage of the programmable power supply from 12V to 9V according to a given voltage step;
The output voltage of the programmable power supply is sequentially increased from 12V to 16V in given voltage steps.
Further, the CAPL script test execution module monitors message information sent by the ECU, judges whether the ECU to be tested works normally according to the message information, and specifically comprises the following steps:
In the process that the output voltage of the programmable power supply is reduced from 12V to 9V in sequence, the ECU to be tested sends message information once to the CAPL script test execution module every time when the output voltage of the programmable power supply is reduced, the CAPL script test execution module judges the validity of the message information, if the message information is valid, the ECU to be tested judges whether the current power supply voltage of the ECU to be tested is in a test range, and if the current power supply voltage of the ECU to be tested is in the test range, the ECU to be tested is judged to work normally;
when the output voltage of the programmable power supply is reduced to 9V, the CAPL script test execution module controls the programmable power supply and the ECU power supply module to restart, and the output voltage of the programmable power supply is set to 12V;
In the process that the output voltage of the programmable power supply is increased from 12V to 16V in sequence, the ECU to be tested sends message information once to the CAPL script test execution module every time when the output voltage of the programmable power supply is increased, the CAPL script test execution module judges the validity of the message information, if the message information is valid, the ECU to be tested judges whether the current power supply voltage of the ECU to be tested is in a test range, and if the current power supply voltage of the ECU to be tested is in the test range, the ECU to be tested is judged to work normally.
By adopting the technical scheme, the test platform device has perfect functions, can flexibly formulate test items and automatically execute, simulates the voltage working environment of the automobile ECU by utilizing the platform device, and simultaneously controls each device through programming language, thereby realizing the test work such as the working range, the working stability and the like of the automobile ECU in a laboratory environment, greatly improving the test efficiency compared with the manual test of the traditional automobile ECU, realizing the accurate and controllable voltage and current time and the like, and further ensuring the accurate and reproducible test result.
Drawings
FIG. 1 is a functional block diagram of an automated test system for an automotive ECU of the present invention;
fig. 2 is a flow chart of a test method of an automated test system for an automotive ECU of the present invention.
Detailed Description
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
Example 1
As shown in fig. 1, the present embodiment provides an automated test system for an automotive ECU, comprising: the system comprises an ECU to be tested, a power supply main control line, a programmable power supply, an ECU power supply module, measuring equipment, an ECU network node module, a TCP routing module, a CAPL script test execution module, an upper computer and a CAN communication module.
The ECU network node module of the embodiment is used for building a CAN closed-loop bus for testing and power supply access for the ECU to be tested, and comprises a CAN bus interface of the ECU to be tested, KL30 and KL15 interfaces for simulating vehicle starting, and a CAN bus expansion node of the ECU to be tested. The ECU network node module provides a CAN bus interface of the ECU to be tested, simulates KL30 and KL15 interfaces of vehicle starting, expands a plurality of nodes of CAN lines of the ECU to be tested so as to be connected with probes of measuring equipment or equipment using the CAN nodes, and the rear ends of the KL30 and KL15 interfaces correspond to the connection of the ECU power supply module.
The power supply general control circuit of the embodiment is used for supplying power to the programmable power supply, the ECU power supply module and the measuring equipment, the output end of the programmable power supply is connected with the input end of the ECU power supply module, and the output end of the ECU power supply module is connected with the ECU network node module. The programmable power supply is matched with the ECU power supply module, so that one path of power supply provides working voltage simulation and voltage regulation for the ECU to be tested. The ECU power supply module of this embodiment adopts a VT 7001A board card.
The measuring equipment of the embodiment is used for measuring the terminal resistance of the CAN communication port of the ECU to be measured and the waveform of the CAN signal, the measuring equipment comprises a universal meter and an oscilloscope, the probe of the measuring equipment is accessed to the measuring point on the ECU network node module in advance, the universal meter is used for measuring the terminal resistance of the CAN communication port of the ECU to be measured, and the oscilloscope is used for measuring the waveform of the CAN signal of the ECU to be measured.
The programmable power supply, the ECU power supply module and the measuring equipment of the embodiment are all connected with the upper computer through the TCP routing module, the ECU network node module is connected with the upper computer through the CAN communication module, and the CAN communication module of the embodiment adopts VN 1640A. All the devices are accessed into the same Ethernet environment through the TCP routing module, and all the devices can realize programming control in the test codes, so that all the nodes in the test system can be controlled in a programmable manner, all the codes can be integrated into a single execution file, all the test scenes can be executed by one key, and finally, a test report is output for analysis.
The CAPL script test execution module of the embodiment is installed in an upper computer, and the CAPL script test execution module is used for performing voltage control on a control programmable power supply and an ECU power supply module, receiving message information sent by an ECU to be tested, judging the validity of the message, generating a test result report, and recording CAN signal waveform data detected by measuring equipment.
Example two
As shown in fig. 2, the present embodiment provides a test method for an automated test system for an automotive ECU, comprising:
Step S1, networking connection and initialization are carried out on equipment in a system, the output voltage of a programmable power supply is adjusted to be the normal working voltage of an EUC to be tested, an oscilloscope working mode is set, and a universal meter testing range is set;
And step S2, controlling the programmable power supply and the ECU power supply module through the CAPL script test execution module, providing power for the ECU to be tested, monitoring message information sent by the ECU through the CAPL script test execution module, judging whether the ECU to be tested works normally according to the message information, generating a test result report, and recording CAN signal waveform data detected by the measuring equipment.
Step S2 of the present embodiment, the programmable power supply and the ECU power supply module are controlled by the CAPL script test execution module, specifically including the following steps:
Firstly, establishing a TCP link between a CAPL script test execution module and an ECU power supply module, sending an opening instruction to start a relay switch corresponding to the ECU power supply module, powering up an ECU to be tested, then monitoring appointed ECU message information by the CAPL script test execution module, and judging that the working state of the ECU to be tested is normal if the ECU message information is detected by the CAPL script test execution module;
Then, CAPL script test execution module calls voltage range measurement function and gives programmable power supply voltage parameter value;
If the formulated message is not detected, judging that the ECU state is not ready, returning a test error by the CAPL script test execution module, prompting the inspection equipment and executing power failure to protect the test equipment.
In this embodiment, the CAPL script test execution module invokes a voltage range measurement function and assigns a programmable power supply voltage parameter value, and specifically includes the following steps:
setting the minimum output voltage of the programmable power supply to 9V, setting the maximum output voltage of the programmable power supply to 16V, and setting the initial output voltage of the programmable power supply to 12V;
sequentially reducing the output voltage of the programmable power supply from 12V to 9V according to a given voltage step;
The output voltage of the programmable power supply is sequentially increased from 12V to 16V in given voltage steps.
In this embodiment, the CAPL script test execution module monitors message information sent by the ECU, and determines whether the ECU to be tested works normally according to the message information, and specifically includes the following steps:
In the process that the output voltage of the programmable power supply is reduced from 12V to 9V in sequence, the ECU to be tested sends message information once to the CAPL script test execution module every time when the output voltage of the programmable power supply is reduced, the CAPL script test execution module judges the validity of the message information, if the message information is valid, the ECU to be tested judges whether the current power supply voltage of the ECU to be tested is in a test range, and if the current power supply voltage of the ECU to be tested is in the test range, the ECU to be tested is judged to work normally;
when the output voltage of the programmable power supply is reduced to 9V, the CAPL script test execution module controls the programmable power supply and the ECU power supply module to restart, and the output voltage of the programmable power supply is set to 12V;
In the process that the output voltage of the programmable power supply is increased from 12V to 16V in sequence, the ECU to be tested sends message information once to the CAPL script test execution module every time when the output voltage of the programmable power supply is increased, the CAPL script test execution module judges the validity of the message information, if the message information is valid, the ECU to be tested judges whether the current power supply voltage of the ECU to be tested is in a test range, and if the current power supply voltage of the ECU to be tested is in the test range, the ECU to be tested is judged to work normally.
If the test range is exceeded, executing the equipment safety restarting code, recording a test report, executing the equipment safety power-off script, and ending the test.
The technical problems, technical solutions and advantageous effects solved by the present invention have been further described in detail in the above-described embodiments, and it should be understood that the above-described embodiments are only illustrative of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the scope of protection of the present invention.
Claims (8)
1. An automated test system for an automotive ECU, comprising: the system comprises an ECU to be tested, a power supply main control line, a programmable power supply, an ECU power supply module, measuring equipment, an ECU network node module, a TCP routing module, CAPL script test execution modules and an upper computer;
The ECU network node module is used for building a CAN closed-loop bus for testing and power supply access for the ECU to be tested;
The power supply main control circuit is used for supplying power to the programmable power supply, the ECU power supply module and the measuring equipment, the output end of the programmable power supply is connected with the input end of the ECU power supply module, and the output end of the ECU power supply module is connected with the ECU network node module;
the measuring equipment is used for measuring the terminal resistance of the CAN communication port of the ECU to be measured and the waveform of the CAN signal;
the programmable power supply, the ECU power supply module and the measuring equipment are all connected with the upper computer through the TCP routing module, and the ECU network node module is connected with the upper computer;
The CAPL script test execution module is arranged in the upper computer, and the CAPL script test execution module is used for controlling the voltage of the programmable power supply and the ECU power supply module, receiving message information sent by the ECU to be tested, judging the validity of the message, generating a test result report, and recording CAN signal waveform data detected by the measuring equipment.
2. The automated test system for an automotive ECU of claim 1, wherein: the ECU network node module comprises a CAN bus interface of the ECU to be tested, KL30 and KL15 interfaces for simulating vehicle starting, and a CAN bus expansion node of the ECU to be tested.
3. The automated test system for an automotive ECU of claim 1, wherein: the measuring equipment comprises a universal meter and an oscilloscope, wherein the universal meter is used for measuring the terminal resistance of the CAN communication port of the ECU to be measured, and the oscilloscope is used for measuring the waveform of the CAN signal of the ECU to be measured.
4. The automated test system for an automotive ECU of claim 1, wherein: the system also comprises a CAN communication module, wherein the ECU network node module is connected with the upper computer through the CAN communication module.
5. A test method of an automated test system for an automotive ECU according to any one of claims 1 to 4, characterized in that it comprises:
Step S1, networking connection and initialization are carried out on equipment in a system, the output voltage of a programmable power supply is adjusted to be the normal working voltage of an EUC to be tested, an oscilloscope working mode is set, and a universal meter testing range is set;
And step S2, controlling the programmable power supply and the ECU power supply module through the CAPL script test execution module, providing power for the ECU to be tested, monitoring message information sent by the ECU through the CAPL script test execution module, judging whether the ECU to be tested works normally according to the message information, generating a test result report, and recording CAN signal waveform data detected by the measuring equipment.
6. The test method according to claim 5, wherein: step S2, the programmable power supply and the ECU power supply module are controlled by the CAPL script test execution module, and the method specifically comprises the following steps:
Firstly, establishing a TCP link between a CAPL script test execution module and an ECU power supply module, sending an opening instruction to start a relay switch corresponding to the ECU power supply module, powering up an ECU to be tested, then monitoring appointed ECU message information by the CAPL script test execution module, and judging that the working state of the ECU to be tested is normal if the ECU message information is detected by the CAPL script test execution module;
Then, CAPL script test execution module calls voltage range measurement function and gives programmable power supply voltage parameter value;
if the formulated message is not detected, judging that the ECU state is not ready, returning a test error by the CAPL script test execution module, prompting the inspection equipment and executing power failure.
7. The test method of claim 6, wherein: the CAPL script test execution module calls a voltage range measurement function and gives a programmable power supply voltage parameter value, and the method specifically comprises the following steps:
setting the minimum output voltage of the programmable power supply to 9V, setting the maximum output voltage of the programmable power supply to 16V, and setting the initial output voltage of the programmable power supply to 12V;
sequentially reducing the output voltage of the programmable power supply from 12V to 9V according to a given voltage step;
The output voltage of the programmable power supply is sequentially increased from 12V to 16V in given voltage steps.
8. The test method according to claim 7, wherein: the CAPL script test execution module monitors message information sent by the ECU, judges whether the ECU to be tested works normally according to the message information, and specifically comprises the following steps:
In the process that the output voltage of the programmable power supply is reduced from 12V to 9V in sequence, the ECU to be tested sends message information once to the CAPL script test execution module every time when the output voltage of the programmable power supply is reduced, the CAPL script test execution module judges the validity of the message information, if the message information is valid, the ECU to be tested judges whether the current power supply voltage of the ECU to be tested is in a test range, and if the current power supply voltage of the ECU to be tested is in the test range, the ECU to be tested is judged to work normally;
when the output voltage of the programmable power supply is reduced to 9V, the CAPL script test execution module controls the programmable power supply and the ECU power supply module to restart, and the output voltage of the programmable power supply is set to 12V;
In the process that the output voltage of the programmable power supply is increased from 12V to 16V in sequence, the ECU to be tested sends message information once to the CAPL script test execution module every time when the output voltage of the programmable power supply is increased, the CAPL script test execution module judges the validity of the message information, if the message information is valid, the ECU to be tested judges whether the current power supply voltage of the ECU to be tested is in a test range, and if the current power supply voltage of the ECU to be tested is in the test range, the ECU to be tested is judged to work normally.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728968A (en) * | 2013-12-16 | 2014-04-16 | 东风柳州汽车有限公司 | Automatic test system for CAN network and ECU functions |
| CN104298224A (en) * | 2014-09-12 | 2015-01-21 | 中国第一汽车股份有限公司 | Automatic vehicle-mounted electronic control unit CAN bus communication testing device and system |
| CN106789423A (en) * | 2016-12-20 | 2017-05-31 | 深圳市菲菱科思通信技术股份有限公司 | Interchanger automatic test device and method of testing |
| CN109274555A (en) * | 2018-10-11 | 2019-01-25 | 深圳市菲菱科思通信技术股份有限公司 | Interchanger automatic test device and test method |
| CN115184803A (en) * | 2022-07-25 | 2022-10-14 | 瑞浦兰钧能源股份有限公司 | Off-line testing device and testing method |
| CN115290351A (en) * | 2022-08-01 | 2022-11-04 | 北斗星通智联科技有限责任公司 | Automobile instrument offline detection method and system |
| CN117560310A (en) * | 2023-12-07 | 2024-02-13 | 纵目科技(重庆)有限公司 | Vehicle-mounted network CAN consistency testing device and method |
-
2024
- 2024-03-21 CN CN202410325843.2A patent/CN117930822A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728968A (en) * | 2013-12-16 | 2014-04-16 | 东风柳州汽车有限公司 | Automatic test system for CAN network and ECU functions |
| CN104298224A (en) * | 2014-09-12 | 2015-01-21 | 中国第一汽车股份有限公司 | Automatic vehicle-mounted electronic control unit CAN bus communication testing device and system |
| CN106789423A (en) * | 2016-12-20 | 2017-05-31 | 深圳市菲菱科思通信技术股份有限公司 | Interchanger automatic test device and method of testing |
| CN109274555A (en) * | 2018-10-11 | 2019-01-25 | 深圳市菲菱科思通信技术股份有限公司 | Interchanger automatic test device and test method |
| CN115184803A (en) * | 2022-07-25 | 2022-10-14 | 瑞浦兰钧能源股份有限公司 | Off-line testing device and testing method |
| CN115290351A (en) * | 2022-08-01 | 2022-11-04 | 北斗星通智联科技有限责任公司 | Automobile instrument offline detection method and system |
| CN117560310A (en) * | 2023-12-07 | 2024-02-13 | 纵目科技(重庆)有限公司 | Vehicle-mounted network CAN consistency testing device and method |
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