CN113504773A - Ethernet test method and Ethernet test system of vehicle-mounted controller - Google Patents
Ethernet test method and Ethernet test system of vehicle-mounted controller Download PDFInfo
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- 238000004088 simulation Methods 0.000 claims description 16
- 238000004458 analytical method Methods 0.000 claims description 7
- 238000013112 stability test Methods 0.000 claims description 3
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- 230000002159 abnormal effect Effects 0.000 abstract 1
- 238000007726 management method Methods 0.000 description 19
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- 238000013024 troubleshooting Methods 0.000 description 2
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- 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
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0262—Confirmation of fault detection, e.g. extra checks to confirm that a failure has indeed occurred
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
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Abstract
The application discloses an Ethernet test method and an Ethernet test system of a vehicle-mounted controller, wherein the Ethernet test method comprises the following steps: acquiring an Ethernet connection state between the vehicle-mounted controller and an Ethernet test system; if the vehicle-mounted controller is connected to the Ethernet test system through the Ethernet, continuously reading the value of a serial four-channel interface register in the vehicle-mounted controller and the running environment information in the vehicle-mounted controller; periodically simulating a ping request, sending the ping request to a vehicle-mounted controller, and starting timing; receiving a response of the vehicle-mounted controller to the ping request within a preset response time; and if the response of the vehicle-mounted controller to the ping request is not received within the preset response time, judging that the Ethernet of the vehicle-mounted controller has a fault. According to the method and the device, the fault is effectively positioned by inquiring the data in the vehicle-mounted controller at the sporadic abnormal moment in the Ethernet communication, so that the problem is conveniently checked.
Description
Technical Field
The present disclosure relates to the field of automotive technologies, and in particular, to an ethernet testing method and an ethernet testing system for an onboard controller.
Background
Because the ethernet has the advantages of large bandwidth, supporting the service-based architecture design, and the like, the ethernet is more and more widely applied to the field of vehicle-mounted communication. However, the vehicle-mounted Ethernet bus is a high-speed communication bus, and is easily influenced by the external environment, and the problem of accidental Ethernet communication loss easily occurs in the vehicle-mounted controller in the whole vehicle communication process.
In the prior art, a communication device continuously sends a ping request to an ethernet vehicle-mounted controller, and whether the controller can normally send a ping response message is judged in a manual mode, so as to judge the stability of the ethernet. However, the test result is judged by the data stream fed back to the vehicle-mounted controller manually, which wastes time and labor, and the reliability of the test result is insufficient because the manual test result lacks sufficient judgment basis. In addition, in such a system, occasional communication abnormalities of the ethernet cannot be effectively checked.
Disclosure of Invention
The application provides an Ethernet test method and an Ethernet test system of a vehicle-mounted controller, which can effectively locate faults by inquiring data in the vehicle-mounted controller at the moment of accidental abnormity in Ethernet communication, and are convenient for troubleshooting.
The application provides an Ethernet test method of a vehicle-mounted controller, which comprises the following steps:
acquiring an Ethernet connection state between the vehicle-mounted controller and an Ethernet test system;
if the vehicle-mounted controller is connected to the Ethernet test system through the Ethernet, continuously reading the value of a serial four-channel interface register in the vehicle-mounted controller and the running environment information in the vehicle-mounted controller;
periodically simulating a ping request, sending the ping request to a vehicle-mounted controller, and starting timing;
receiving a response of the vehicle-mounted controller to the ping request within a preset response time;
and if the response of the vehicle-mounted controller to the ping request is not received within the preset response time, judging that the Ethernet of the vehicle-mounted controller has a fault.
Preferably, if the response of the vehicle-mounted controller to the ping request is received within the preset response time, the stability test of the vehicle-mounted controller is judged to be qualified.
Preferably, if the Ethernet of the vehicle-mounted controller fails, the Ethernet of the vehicle-mounted controller fails
Recording time information of a preset response time;
inquiring the value of a serial four-channel interface register inside the vehicle-mounted controller and the running environment information inside the vehicle-mounted controller at the preset response time;
and analyzing the fault reason by combining the time information of the preset response time, the value of the serial four-channel interface register and the operating environment information.
Preferably, acquiring the ethernet connection state between the vehicle-mounted controller and the ethernet test system includes:
periodically acquiring the value of a connection state register inside the vehicle-mounted controller;
if the value of the connection status register is valid, the on-board controller has been connected to the Ethernet test system via Ethernet.
Preferably, the communication mode of the ethernet test system is set according to the communication mode of the onboard controller before acquiring the ethernet connection status between the onboard controller and the ethernet test system.
Preferably, a power supply voltage is selected and supplied to the on-board controller before the communication mode of the on-board controller is set.
The application also provides an Ethernet test system of the vehicle-mounted controller, which comprises a state acquisition module, a communication simulation module and a test analysis module;
the state acquisition module is used for acquiring the Ethernet connection state between the vehicle-mounted controller and the test system, continuously reading the value of a serial four-channel interface register in the vehicle-mounted controller and the running environment information in the vehicle-mounted controller;
the communication simulation module is used for periodically simulating ping requests, sending the ping requests to the vehicle-mounted controller, starting timing and receiving the response of the vehicle-mounted controller to the ping requests within preset response time;
and the test analysis module is used for determining whether the Ethernet of the vehicle-mounted controller fails according to the response time of the ping request.
Preferably, the test system further comprises a power management module, the power management module is a programmable power supply, and the power management module is used for loading various power supply voltages to the vehicle-mounted controller.
Preferably, the communication simulation module is further used for switching a communication mode between the vehicle-mounted controller and the test system.
Preferably, the test system further comprises a test management module, and the test management module is used for controlling the power management module, the communication simulation module and the state acquisition module.
Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.
FIG. 1 is a flow chart of a method for testing an Ethernet of an onboard controller according to the present application;
FIG. 2 is a block diagram of an Ethernet test system for an onboard controller provided herein;
FIG. 3 is a control timing diagram of the Ethernet test system provided in the present application;
fig. 4 is an internal structural view of the vehicle-mounted controller.
Detailed Description
Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
The Ethernet test method and the Ethernet test system for the vehicle-mounted controller effectively locate the fault by inquiring the data in the vehicle-mounted controller at the moment of accidental communication abnormity of the Ethernet, and are convenient for troubleshooting; meanwhile, the method and the device can realize the verification of the Ethernet stability of the vehicle-mounted controller under different power modes.
Example one
As shown in fig. 1, the ethernet testing method of the vehicle-mounted controller includes:
s1010: and acquiring the Ethernet connection state between the vehicle-mounted controller and the Ethernet test system.
Specifically, acquiring the ethernet connection state between the vehicle-mounted controller and the ethernet test system includes:
s10101: the value of the connection status register inside the vehicle-mounted controller is periodically acquired.
S10102: if the value of the connection status register is valid (e.g., a value of 1 indicates access is allowed and the value of the status register is valid), the on-board controller has been connected to the Ethernet test system via Ethernet.
S1020: if the vehicle-mounted controller is connected to the Ethernet test system through the Ethernet, the value of a serial four-channel interface (SQI) register inside the vehicle-mounted controller and the running environment information inside the vehicle-mounted controller are continuously read. The value of the SQI register is used for representing the communication quality of the Ethernet.
S1030: periodically emulating and sending ping requests to the onboard controllers and starting timing.
It should be noted that, after the on-board controller completes the power-on initialization, steps S1020 and S1030 may be performed simultaneously.
S1040: and receiving the response of the vehicle-mounted controller to the ping request within the preset response time.
S1050: and judging whether the response of the vehicle-mounted controller to the ping request is received within the preset response time. If yes, go to step S1060. Otherwise, S1070 is performed.
S1060: and judging that the stability test of the vehicle-mounted controller is qualified, and returning to the step S1030.
S1070: and judging that the Ethernet of the vehicle-mounted controller fails.
If the Ethernet of the vehicle-mounted controller fails, steps S1080-S1100 are executed.
S1080: time information of the predetermined response time is recorded.
As one embodiment, the time information of the predetermined response time includes an absolute time of a time starting from the time when the ping request is issued and a time interval from the starting point to the time of the predetermined response time and a relative time thereof with respect to the time when the simulation starts.
S1090: and inquiring the value of a serial four-channel interface (SQI) register inside the vehicle-mounted controller and the running environment information inside the vehicle-mounted controller at the preset response time.
S1100: and analyzing the fault reason by combining the time information of the preset response time, the value of a serial four-channel interface (SQI) register and the running environment information.
Specifically, as shown in fig. 4, a system on chip SoC (as a communication module) and an ethernet physical layer chip (PHY) are disposed in the vehicle-mounted controller, and are in signal connection via an inter-chip communication line. The vehicle-mounted controller and the Ethernet test system are communicated through an Ethernet communication cable.
Thus, the fault types are classified into an external fault and an internal fault according to the architecture of the on-board controller.
The external fault is a cable fault connected between the vehicle-mounted controller and the Ethernet test system and comprises a cable near-end open circuit, a cable far-end open circuit, a cable near-end short circuit, a cable far-end short circuit and the like, wherein the near end and the far end are positions of fault points relative to the vehicle-mounted controller. The Ethernet test system acquires fault information by reading the SQI register state of the vehicle-mounted controller.
The internal faults include Ethernet PHY chip abnormity, module abnormity reset and inter-chip communication abnormity.
As an example, the following table shows the value of a serial four channel interface (SQI) register and the corresponding relationship between the operating environment information and the fault cause at a predetermined response time, where the register a is used to set the access authority to the register, the register B is the SQI register, and the registers C and D are registers for recording the operating environment information inside the vehicle-mounted controller.
In step S1090, querying a value of a serial four channel interface (SQI) register inside the vehicle-mounted controller or operating environment information inside the vehicle-mounted controller at a predetermined response time includes the steps of:
s10901: the grant permission register is set.
S10902: the value of the target register is obtained.
S10903: access control of the target register is disabled.
Taking access register B as an example, the value of the "access control" field of register A is set to 1, then the "SQI register value" is read (decimal value range is 0-7), and the value of the "access control" field of register A is set to 0 after the SQI register value is read.
When the return value of the SQI register is greater than or equal to a set threshold (for example, 3), the communication quality of the current Ethernet is good; when the return value of the SQI register is smaller than a set threshold value, the communication quality is poor, and the risk of potential packet loss exists in Ethernet communication.
Preferably, the master-slave communication mode of the ethernet test system is set according to the communication mode of the onboard controller before the ethernet connection state between the onboard controller and the ethernet test system is acquired.
If the vehicle-mounted controller is in a master communication mode, the Ethernet test system is in a slave communication mode; if the vehicle-mounted controller is in the slave communication mode, the Ethernet test system is in the master communication mode.
Therefore, the Ethernet test system can flexibly configure the communication mode, thereby being suitable for the test requirements of different vehicle-mounted controllers.
On the basis of the above preferred embodiment, it is preferable that one of the power supply voltages is selected and supplied to the on-vehicle controller before the communication mode of the on-vehicle controller is set. Therefore, the method and the device can realize the verification of the Ethernet stability of the vehicle-mounted controller under different power modes.
Example two
The application also provides an Ethernet test system of the vehicle-mounted controller matched with the Ethernet test method. As shown in fig. 2, the ethernet test system of the vehicle-mounted controller includes a state acquisition module 210, a communication simulation module 220, and a test analysis module 230.
The state acquisition module 210 is configured to acquire an ethernet connection state between the onboard controller and the test system, and continuously read a value of a serial four channel interface (SQI) register inside the onboard controller and operating environment information inside the onboard controller.
As an embodiment, the state acquisition module 210 acquires internal state data of the vehicle-mounted controller, which includes an ethernet connection state between the vehicle-mounted controller and the test system, a value of a serial four-channel interface (SQI) register inside the vehicle-mounted controller, and running environment information inside the vehicle-mounted controller, by using serial port or CAN communication.
The communication simulation module 220 is used for periodically simulating the ping request, sending the ping request to the vehicle-mounted controller, starting timing, and receiving the response of the vehicle-mounted controller to the ping request within the preset response time.
As an embodiment, the communication emulation module 220 emulates an ethernet ping request message with a 1000ms period and starts a 10ms timer. If receiving the ping response message sent by the vehicle-mounted controller within 10ms, the stability of the Ethernet is qualified, and the test is passed. If the ping response message sent by the vehicle-mounted controller is not received within 10ms, the Ethernet of the vehicle-mounted controller is indicated to have a fault, and the absolute time (year, month, day, hour, minute and second) at the moment and the relative time relative to the time for starting simulation are recorded.
Preferably, the communication simulation module 220 supports switching of the communication mode between the vehicle-mounted controller and the ethernet test system in a software setting manner. When the Ethernet of the vehicle-mounted controller is in a master communication mode, the Ethernet test system needs to be set to a slave communication mode; when the vehicle-mounted controller is in the slave communication mode, the Ethernet test system needs to be set to the master communication mode.
The test analysis module 230 is used to determine whether the ethernet of the onboard controller fails according to the response time of the ping request. Further, the test analysis module 230 queries the SQI value and the operating environment information fed back by the state acquisition module 210 based on the fault time point reported by the communication simulation module 220, performs data analysis, and locates the fault reason.
Preferably, the test system further comprises a power management module 240, the power management module 240 is a programmable power supply, and the power management module is configured to load various power supply voltages to the onboard controllers. As one example, power management module 240 may load different waveforms to implement a simulation of a 5-26v supply voltage. As an example, the power management module 240 outputs KL30 and KL15 power to power the onboard controllers and outputs GND to ground.
Preferably, the test system further includes a test management module 250, and the test management module 250 is configured to design a test sequence and a test policy, and control the power management module 240, the communication simulation module 220, and the state acquisition module 210.
For one embodiment, the test management module 250 is configured to set a start-up strategy of the power management module 240, including a power OFF duration t1, a power ON duration t2, a ping request interval t5, and a predetermined response time t6, as shown in fig. 3.
As an example, t1 is 120ms and t2 is 900 ms.
For one embodiment, after controlling the power supply of the power management module 240 to power on, the test management module 250 controls the state collection module 210 to operate, periodically poll the states of the connection state register, the SQI register and other registers inside the vehicle controller, and record the power-on initialization time t3 of the vehicle controller and the time interval t4 between the end of the message and the power-off.
For one embodiment, the test management module 250 controls the communication simulation module 220 to start operating after detecting the ethernet connection of the onboard controller.
Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.
Claims (10)
1. An Ethernet test method of a vehicle-mounted controller is characterized by comprising the following steps:
acquiring an Ethernet connection state between the vehicle-mounted controller and an Ethernet test system;
if the vehicle-mounted controller is connected to an Ethernet test system through Ethernet, continuously reading the value of a serial four-channel interface register inside the vehicle-mounted controller and the running environment information inside the vehicle-mounted controller;
periodically simulating a ping request and sending the ping request to the vehicle-mounted controller, and starting timing;
receiving a response of the onboard controller to the ping request within a predetermined response time;
and if the response of the vehicle-mounted controller to the ping request is not received within the preset response time, judging that the Ethernet of the vehicle-mounted controller has a fault.
2. The Ethernet test method for the vehicle-mounted controller according to claim 1, wherein the stability test of the vehicle-mounted controller is determined to be qualified if a response to the ping request from the vehicle-mounted controller is received within a predetermined response time.
3. The Ethernet test method of the vehicle-mounted controller according to claim 1 or 2, wherein if the Ethernet of the vehicle-mounted controller fails, the Ethernet of the vehicle-mounted controller fails
Recording time information of the preset response time;
inquiring the value of a serial four-channel interface register inside the vehicle-mounted controller and the running environment information inside the vehicle-mounted controller at the preset response time;
and analyzing the fault reason by combining the time information of the preset response time, the value of the serial four-channel interface register and the operating environment information.
4. The Ethernet test method for the vehicle-mounted controller according to claim 1, wherein the obtaining of the Ethernet connection state between the vehicle-mounted controller and the Ethernet test system comprises:
periodically acquiring the value of a connection state register inside the vehicle-mounted controller;
and if the value of the connection state register is valid, the vehicle-mounted controller is connected to an Ethernet test system through the Ethernet.
5. The Ethernet test method of the vehicle-mounted controller according to claim 1, wherein the communication mode of the Ethernet test system is set according to the communication mode of the vehicle-mounted controller before the Ethernet connection state between the vehicle-mounted controller and the Ethernet test system is obtained.
6. The Ethernet test method of claim 5, wherein a power supply voltage is selected and provided to the on-board controller before the communication mode of the on-board controller is set.
7. The Ethernet test system of the vehicle-mounted controller is characterized by comprising a state acquisition module, a communication simulation module and a test analysis module;
the state acquisition module is used for acquiring the Ethernet connection state between the vehicle-mounted controller and the test system, and continuously reading the value of a serial four-channel interface register in the vehicle-mounted controller and the running environment information in the vehicle-mounted controller;
the communication simulation module is used for periodically simulating ping requests, sending the ping requests to the vehicle-mounted controller, starting timing and receiving the response of the vehicle-mounted controller to the ping requests within preset response time;
the test analysis module is used for determining whether the Ethernet of the vehicle-mounted controller has a fault according to the response time of the ping request.
8. The Ethernet test system of the onboard controller of claim 7, further comprising a power management module, wherein the power management module is a programmable power supply, and wherein the power management module is configured to load a plurality of power supply voltages to the onboard controller.
9. The Ethernet test system of claim 7, wherein the communication emulation module is further configured to switch a communication mode between the onboard controller and the test system.
10. The Ethernet test system of the vehicle-mounted controller according to claim 8, further comprising a test management module for controlling the power management module, the communication simulation module and the status collection module.
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| CN115134280B (en) * | 2022-06-23 | 2023-11-24 | 安徽江淮汽车集团股份有限公司 | Fault testing system and method for vehicle-mounted Ethernet |
| CN115032969A (en) * | 2022-06-27 | 2022-09-09 | 中国第一汽车股份有限公司 | Ethernet test system of vehicle-mounted controller |
| CN115407236A (en) * | 2022-07-15 | 2022-11-29 | 中国第一汽车股份有限公司 | Method and device for testing high-speed transmission wire harness of vehicle, vehicle and storage medium |
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