Testing system and testing device for integrated brake control module

Abstract

The invention provides a test system and a test device for an integrated brake control module. The test system comprises a switch module, a signal connection module, and a switch monitoring module, a communication module and a simulation load module which are connected with the switch module and the signal connection module, the switch monitoring module is connected with the switch module and transmits the state of the switch module to a device to be tested through the signal connection module; the communication module is used for being in communication connection with an external upper computer so as to receive a first instruction of the external upper computer and transmit the first instruction to the to-be-tested device through the signal connection module, and the signal connection module is used for receiving state information of the to-be-tested device and sending the state information to the external upper computer through the communication module; the signal connection module is also used for receiving a second instruction of the to-be-tested device and transmitting the second instruction to the simulation load module so as to control the simulation load module to act. The problems that in the prior art, the working efficiency of testing and verifying the integrated brake control module is low, and the repeatability of the testing process is poor are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of brake system testing, and in particular to a test system and a test device for an integrated brake control module. Background Art

[0002] At present, with the continuous development of automobile intelligent driving technology, the integrated braking control system, as an important component of intelligent driving vehicles, is very important for the design and development of intelligent driving vehicles. In particular, sufficient performance testing and verification of the integrated braking control system is an indispensable link.

[0003] During the comprehensive performance testing and verification of the integrated braking control system, it is not only necessary to be able to provide controllable braking force for the braking system, but also to be able to cooperate with the intelligent driving controller of the intelligent driving car to initiate braking requests under different working conditions.

[0004] In the prior art, the testing and verification methods for the integrated brake control system still remain at the stage of conducting real vehicle tests after the integrated brake control system is installed on the vehicle. Due to the limitations of the real vehicle test data and the non-disclosure of the sensor protocol, the testing and verification of the integrated brake control system is inefficient and the test process has poor repeatability. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a test system and a test device for an integrated brake control module, which solve the problems in the prior art of low efficiency in testing and verifying the integrated brake control module and poor repeatability of the test process.

[0006] At least one embodiment of the present invention provides a test system for an integrated brake control module, comprising:

[0007] A switch module, a signal connection module, and a switch monitoring module, a communication module and a simulated load module that are communicatively connected to the signal connection module, wherein:

[0008] The signal connection module is used for communication connection with the device under test;

[0009] The switch monitoring module is connected to the switch module to obtain the state of the switch module, and transmits the state of the switch module to the device under test through the signal connection module;

[0010] The communication module is used to communicate with an external host computer, the communication module is used to receive a first instruction from the external host computer, and pass the first instruction to the device under test through the signal connection module, the signal connection module is used to receive status information of the device under test, and send the status information to the external host computer through the communication module;

[0011] The signal connection module is further used to receive a second instruction sent by the device under test, and transmit the second instruction to the simulation load module to control the action of the simulation load module.

[0012] The technical solution disclosed in the present invention has at least the following beneficial effects:

[0013] During the test, after the device under test is powered on, different switches can be triggered on the switch module. After that, the switch monitoring module detects the state changes of each switch in the switch module and sends a signal to the device under test through the signal connection module. After that, after the device under test receives the above signal, the tester can send relevant messages to the external host computer through the communication module to complete the test of simulating the external switch action of the actual vehicle. At this time, the tester can observe the parameters in the message to query whether the device under test can correctly identify the action of each switch and whether it can correctly process the signal and output it;

[0014] Also, after the device under test is powered on, the external host computer issues a first instruction through the communication module, and the communication module sends the first instruction to the device under test through the signal connection module. Subsequently, after receiving the first instruction, the device under test issues a second instruction, and the signal connection module passes the second instruction to the simulated load module, thereby completing the test of simulating the device under test to control the external load action of the actual vehicle. At this time, the experimenter can determine whether the device under test can correctly receive and identify the first instruction, and can correctly send the relevant second instruction based on the working status of the corresponding load in the simulated load module.

[0015] Through the above settings, this test system can significantly reduce the material cost and time cost of the test by simulating the external electrical wiring, load and signal transmission of the actual vehicle. It has high repeatability and can fully meet the test needs.

[0016] In one embodiment of the present invention, a test system for an integrated brake control module is provided. The system includes a light control module and a status light module, wherein the switch module specifically includes a plurality of analog switches, the state of the switch module includes the on / off information of each analog switch, and the status light module has a plurality of status lights, each of the analog switches corresponds to a non-repetitive status light:

[0017] Each of the status lights and the switch monitoring module are connected to the light control module, and the light control module is used to obtain the opening and closing information of each of the analog switches from the switch monitoring module and control the opening and closing of the corresponding status lights.

[0018] The technical solution disclosed in the present invention has at least the following beneficial effects:

[0019] During the test, after the device under test is powered on, when the switch monitoring module detects that the switch state change is triggered in the switch module, the opening and closing information of the corresponding analog switch can be transmitted to the status light module through the light control module, and the status light corresponding to the corresponding switch in the open state can be controlled to light up, so as to facilitate the test personnel to quickly and intuitively determine the test results of the device under test.

[0020] In a test system for an integrated brake control module provided by one embodiment of the present invention, the simulated load module includes a plurality of simulated loads, the controlling the simulated load module action includes controlling a preset simulated load action, each of the simulated loads corresponds to a status light without duplication, and the signal connection module is also connected to the light control module;

[0021] The light control module is further used to obtain the second instruction from the signal connection module, and control the on and off of the preset status light according to the second instruction.

[0022] The technical solution disclosed in the present invention has at least the following beneficial effects:

[0023] During the test, after the device under test is powered on, when the device under test sends a second instruction to the signal connection module, the signal connection module sends the corresponding second instruction to the light control module. Then the light control module recognizes the preset simulated load action to control the corresponding status light to light up, so as to facilitate the test personnel to quickly and intuitively determine the test results of the device under test.

[0024] In a test system for an integrated brake control module provided in one embodiment of the present invention, the system also includes a signal interference module, which is connected to the signal connection module to perform signal interference on the connection between the signal connection module and the light control module, the switch monitoring module, the simulated load module and the device under test.

[0025] The technical solution disclosed in the present invention has at least the following beneficial effects:

[0026] The signal interference module can be used to simulate various signal interference faults that may be encountered in the normal operation of the integrated brake control module, so as to test whether the device under test can work normally under the signal interference environment.

[0027] In a test system for an integrated brake control module provided in one embodiment of the present invention, the system also includes a fault injection module, which is connected to the signal connection module to impose a preset fault on the connection between the signal connection module and the light control module, the switch monitoring module, the simulated load module and the device under test.

[0028] The technical solution disclosed in the present invention has at least the following beneficial effects:

[0029] Through the fault injection module, various faults that may be encountered in the normal operation of the integrated brake control module can be simulated to test whether the device under test can work normally when the system fails.

[0030] In a test system for an integrated brake control module provided in one embodiment of the present invention, the system further includes a connected buzzer control module and a buzzer module, wherein:

[0031] The signal connection module is also connected to the buzzer control module, and the signal connection module is also used to obtain a third instruction issued by the device under test, so as to control the action of the buzzer module through the buzzer control module.

[0032] The technical solution disclosed in the present invention has at least the following beneficial effects:

[0033] During the test, after the signal interference module or the fault injection module applies corresponding signal interference or fault, when the device under test enters the fault mode, a third instruction will be issued accordingly, and the action of the corresponding buzzer will be controlled through the signal connection module and the buzzer control module, so as to facilitate the test personnel to quickly and intuitively determine that the device under test can handle normally according to the preset process when encountering corresponding signal interference and faults.

[0034] In a test system for an integrated brake control module provided in one embodiment of the present invention, the system further includes a power supply module, which is respectively connected to an external power supply, the light control module, the buzzer control module, the switch monitoring module and the simulated load module;

[0035] The power supply module is used to convert the external power supply voltage into a preset voltage to respectively supply power to the light control module, the buzzer control module, the switch monitoring module and the simulated load module.

[0036] In a test system for an integrated brake control module provided in one embodiment of the present invention, the system further includes a fuse module, and the external power supply is connected to the power supply module through the fuse module.

[0037] The technical solution disclosed in the present invention has at least the following beneficial effects:

[0038] The fuse module can effectively avoid the risk of short circuit caused by overcurrent, thereby improving the safety of the system.

[0039] In a test system for an integrated brake control module provided by one of the embodiments of the present invention, the communication module includes a CAN port module.

[0040] The present invention also provides a testing device for an integrated brake control module, the testing device comprising a testing system for an integrated brake control module, a control panel and a circuit board as described above, wherein:

[0041] The signal interference module, fault injection module, signal connection module, status light module, buzzer module and switch module are all configured on the control panel;

[0042] The light control module, buzzer control module, switch monitoring module, power supply module, fuse module, analog load module and CAN port module are all configured on the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A connection diagram of one embodiment of a test system for an integrated brake control module according to the present invention;

[0044] Figure 2 A connection diagram of another embodiment of a test system for an integrated brake control module according to the present invention;

[0045] Figure 3 This is a flow chart of the external switch action of a simulated real vehicle according to the present invention;

[0046] Figure 4 This is a flow chart of the action of simulating the device under test to control the external load of a real vehicle;

[0047] Figure 5 This is a flow chart of the present invention simulating external signal interference and faults of a real vehicle. DETAILED DESCRIPTION

[0048] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0049] The present invention provides a test system for an integrated brake control module, please refer to Figure 1 As shown, including:

[0050] A switch module, a signal connection module, and a switch monitoring module, a communication module and a simulated load module that are communicatively connected to the signal connection module, wherein:

[0051] The signal connection module is used for communication connection with the device under test;

[0052] The switch monitoring module is connected to the switch module to obtain the state of the switch module, and transmits the state of the switch module to the device under test through the signal connection module;

[0053] The communication module is used to communicate with an external host computer, the communication module is used to receive a first instruction from the external host computer, and pass the first instruction to the device under test through the signal connection module, the signal connection module is used to receive status information of the device under test, and send the status information to the external host computer through the communication module;

[0054] The signal connection module is further used to receive a second instruction sent by the device under test, and transmit the second instruction to the simulation load module to control the action of the simulation load module.

[0055] During the test, after the device under test is powered on, different switches can be triggered on the switch module. After that, the switch monitoring module detects the state changes of each switch in the switch module and sends a signal to the device under test through the signal connection module. After that, after the device under test receives the above signal, the tester can send relevant messages to the external host computer through the communication module to complete the test of simulating the external switch action of the actual vehicle. At this time, the tester can observe the parameters in the message to query whether the device under test can correctly identify the action of each switch and whether it can correctly process the signal and output it;

[0056] Also, after the device under test is powered on, the external host computer issues a first instruction through the communication module, and the communication module sends the first instruction to the device under test through the signal connection module. Subsequently, after receiving the first instruction, the device under test issues a second instruction, and the signal connection module passes the second instruction to the simulated load module, thereby completing the test of simulating the device under test to control the external load action of the actual vehicle. At this time, the experimenter can determine whether the device under test can correctly receive and identify the first instruction, and can correctly send the relevant second instruction based on the working status of the corresponding load in the simulated load module.

[0057] Through the above settings, this test system can significantly reduce the material cost and time cost of the test by simulating the external electrical wiring, load and signal transmission of the actual vehicle. It has high repeatability and can fully meet the test needs.

[0058] Specifically, please combine Figure 2As shown, the system includes a light control module and a status light module, wherein the switch module specifically includes a plurality of analog switches, the state of the switch module includes the on / off information of each analog switch, and the status light module has a plurality of status lights, and each analog switch corresponds to a non-repetitive status light:

[0059] Each of the status lights and the switch monitoring module are connected to the light control module, and the light control module is used to obtain the opening and closing information of each of the analog switches from the switch monitoring module and control the opening and closing of the corresponding status lights.

[0060] During the test, after the device under test is powered on, when the switch monitoring module detects that the switch state change is triggered in the switch module, the opening and closing information of the corresponding analog switch can be transmitted to the status light module through the light control module, and the status light corresponding to the corresponding switch in the open state can be controlled to light up, so as to facilitate the test personnel to quickly and intuitively determine the test results of the device under test.

[0061] Specifically, the simulated load module includes a plurality of simulated loads, the controlling the simulated load module action includes controlling a preset simulated load action, each of the simulated loads corresponds to a status light without duplication, and the signal connection module is also connected to the light control module;

[0062] The light control module is further used to obtain the second instruction from the signal connection module, and control the on and off of the preset status light according to the second instruction.

[0063] During the test, after the device under test is powered on, when the device under test sends a second instruction to the signal connection module, the signal connection module sends the corresponding second instruction to the light control module. Then the light control module recognizes the preset simulated load action to control the corresponding status light to light up, so as to facilitate the test personnel to quickly and intuitively determine the test results of the device under test.

[0064] Specifically, the system further includes a signal interference module, which is connected to the signal connection module to perform signal interference on the connection between the signal connection module and the light control module, the switch monitoring module, the simulated load module and the device under test.

[0065] The signal interference module can be used to simulate various signal interference faults that may be encountered in the normal operation of the integrated brake control module, so as to test whether the device under test can work normally under the signal interference environment.

[0066] Specifically, the system further includes a fault injection module, which is connected to the signal connection module to impose a preset fault on the connection between the signal connection module and the light control module, the switch monitoring module, the simulated load module and the device under test.

[0067] Through the fault injection module, various faults that may be encountered in the normal operation of the integrated brake control module can be simulated to test whether the device under test can work normally when the system fails.

[0068] Specifically, the system also includes a connected buzzer control module and a buzzer module, wherein:

[0069] The signal connection module is also connected to the buzzer control module, and the signal connection module is also used to obtain a third instruction issued by the device under test, so as to control the action of the buzzer module through the buzzer control module.

[0070] During the test, after the signal interference module or the fault injection module applies corresponding signal interference or fault, when the device under test enters the fault mode, a third instruction will be issued accordingly, and the action of the corresponding buzzer will be controlled through the signal connection module and the buzzer control module, so as to facilitate the test personnel to quickly and intuitively determine that the device under test can handle normally according to the preset process when encountering corresponding signal interference and faults.

[0071] Specifically, the system further comprises a power supply module, which is respectively connected to an external power supply, the light control module, the buzzer control module, the switch monitoring module and the simulated load module;

[0072] The power supply module is used to convert the external power supply voltage into a preset voltage to respectively supply power to the light control module, the buzzer control module, the switch monitoring module and the simulated load module.

[0073] Specifically, the system further includes a fuse module, and the external power supply is connected to the power supply module via the fuse module.

[0074] The fuse module can effectively avoid the risk of short circuit caused by overcurrent, thereby improving the safety of the system.

[0075] Specifically, the communication module includes a CAN port module.

[0076] The present invention also provides a testing device for an integrated brake control module, the testing device comprising a testing system for an integrated brake control module, a control panel and a circuit board as described above, wherein:

[0077] The signal interference module, fault injection module, signal connection module, status light module, buzzer module and switch module are all configured on the control panel;

[0078] The light control module, buzzer control module, switch monitoring module, power module, fuse module, analog load module and CAN port module are all configured on the circuit board.

[0079] In summary, after adopting the above solution:

[0080] 1: When you need to test whether the actual vehicle can correctly receive and identify the external switch action, please combine Figure 2 and Figure 3 As shown, Figure 3 , Figure 4 as well as Figure 5 The DUT in the figure stands for device under test, and PCBA stands for circuit board.

[0081] First, during the test, after the device under test is powered on, the control panel and circuit board are self-checked. If an abnormality occurs during the self-check, the device or system is analyzed and rectified. If there is no abnormality, different switches are pressed on the switch module. Then, the switch monitoring module on the circuit board recognizes the state changes of each switch in the switch module, and sends a signal to the device under test through the signal connection module. At the same time, the switch monitoring module transmits the opening and closing information of the corresponding analog switch to the status light module through the light control module, and controls the status light corresponding to the corresponding switch in the open state to light up. After receiving the above signal, the device under test will send relevant messages to the external host computer through the communication module, and perform corresponding actions at the same time to complete the test of simulating the external switch action of the actual vehicle. At this time, the tester can observe the parameters in the message, query whether the device under test can correctly identify the action of each switch, and judge whether the signal can be correctly processed and output through the status of the device.

[0082] 2. When you need to test whether the device under test can correctly receive the instructions of the host computer and correctly execute the control of the external load, please combine Figure 2 and Figure 4As shown, after the device under test is powered on, the control panel and the circuit board are first self-checked. If an abnormality occurs during the self-check, the device or system is analyzed and rectified. If there is no abnormality, the external host computer issues a first instruction through the communication module, and the communication module sends the first instruction to the device under test through the signal connection module. Subsequently, after the device under test receives the first instruction, it processes and issues a second instruction, and at the same time, a message about the processing process information is sent to the host computer through the signal connection module and the communication module. The signal connection module also transmits the second instruction to the simulated load module on the circuit board, thereby completing the test of simulating the device under test to control the external load action of the actual vehicle. At the same time, the signal connection module also sends the second instruction to the light control module, and then the light control module recognizes the preset simulated load action to control the corresponding status light to light up. At this time, the tester can determine whether the device under test can correctly receive and identify the first instruction, and can correctly send the relevant second instruction based on the working status of the corresponding load in the simulated load module, the action process of the device under test, and the message parameters.

[0083] 3. When you need to test the external signal interference or fault of the actual vehicle, please combine Figure 2 as well as Figure 5 As shown, after the device under test is powered on, the control panel and the circuit board are self-checked first. If an abnormality occurs during the self-check, the device or system is analyzed and rectified. If there is no abnormality, the host computer continues to monitor the device under test and record messages through the communication module and the signal connection module. The test personnel use the signal interference module or the fault injection module to apply signal interference, such as radiation interference, conduction interference, etc., to the connection between the signal connection module and the light control module, the switch monitoring module, the simulated load module and the device under test, or perform fault injection, such as short circuit, open circuit, etc. At this time, the device under test performs another self-check on the control panel and the circuit board to determine whether the device under test enters the fault mode. If it does not enter the fault mode, the state of the device under test itself, the signal value after receiving and processing, etc. are sent to the host computer through the signal connection module and the communication module (can port module); if it enters the fault state, an instruction is issued to light the fault light and activate the buzzer through the signal connection module of the control panel, the light control module of the circuit board, the buzzer control module, the status light module of the control panel and the buzzer module. At the same time, the fault message is sent to the host computer through the CAN port module. The test personnel can determine whether the device under test correctly handles the external signal interference or fault of the actual vehicle by observing the action status of each module of the device, the action of the device under test and related messages.

[0084] This device can simulate and test the wheel speed sensor, electronic stability control system, electronic parking brake system, steep slope descent system, automatic parking system, power supply system brake light switch, vehicle speed output system, wheel speed output system and other real vehicle external signals, switches, lights, motors, so as to fully meet the test needs;

[0085] This device reduces the material and time costs of testing by simulating the external electrical wiring, load, signal, signal interference and faults of the actual vehicle;

[0086] The device has dual power supply lines, multiple fuses, status lights, buzzers, etc. to improve the reliability and safety of the device;

[0087] The device can adapt to multiple platforms, multiple models of integrated brake control modules and other similar products through variable signal connection, expanding the scope of application;

[0088] Comprehensive real-vehicle external signal simulation can fully meet test requirements, and the scalability of simulated loads provides conditions for meeting new requirements in the future.

[0089] Furthermore, those skilled in the art may combine and associate different embodiments or examples and features of different embodiments or examples described in this specification without mutual contradiction.

[0090] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A test system for an integrated brake control module, characterized in that: include: A switch module, a signal connection module, and a switch monitoring module, a communication module and a simulated load module that are communicatively connected to the signal connection module, wherein: The signal connection module is used for communication connection with the device under test; The switch monitoring module is connected to the switch module to obtain the state of the switch module, and transmits the state of the switch module to the device under test through the signal connection module; The communication module is used to communicate with an external host computer, the communication module is used to receive a first instruction from the external host computer, and pass the first instruction to the device under test through the signal connection module, the signal connection module is used to receive status information of the device under test, and send the status information to the external host computer through the communication module; The signal connection module is further used to receive a second instruction sent by the device under test, and transmit the second instruction to the simulation load module to control the action of the simulation load module.

2. A test system for an integrated brake control module according to claim 1, characterized in that: The system includes a light control module and a status light module, wherein the switch module specifically includes a plurality of analog switches, the state of the switch module includes the on / off information of each analog switch, and the status light module has a plurality of status lights, each of the analog switches corresponds to a non-repetitive status light: Each of the status lights and the switch monitoring module are connected to the light control module, and the light control module is used to obtain the opening and closing information of each of the analog switches from the switch monitoring module and control the opening and closing of the corresponding status lights.

3. A test system for an integrated brake control module according to claim 2, characterized in that: The simulated load module includes a plurality of simulated loads, the controlling the simulated load module action includes controlling a preset simulated load action, each of the simulated loads corresponds to a status light without duplication, and the signal connection module is also connected to the light control module; The light control module is further used to obtain the second instruction from the signal connection module, and control the on and off of the preset status light according to the second instruction.

4. A test system for an integrated brake control module according to claim 3, characterized in that: The system also includes a signal interference module, which is connected to the signal connection module to perform signal interference on the connection between the signal connection module and the light control module, the switch monitoring module, the simulated load module and the device under test.

5. A test system for an integrated brake control module according to claim 4, characterized in that: The system further comprises a fault injection module, which is connected to the signal connection module to impose a preset fault on the connection between the signal connection module and the light control module, the switch monitoring module, the simulated load module and the device under test.

6. A test system for an integrated brake control module according to claim 5, characterized in that: The system also includes a connected buzzer control module and a buzzer module, wherein: The signal connection module is also connected to the buzzer control module, and the signal connection module is also used to obtain a third instruction issued by the device under test, so as to control the action of the buzzer module through the buzzer control module.

7. A test system for an integrated brake control module according to claim 6, characterized in that: The system further comprises a power supply module, which is respectively connected to an external power supply, the light control module, the buzzer control module, the switch monitoring module and the simulated load module; The power supply module is used to convert the external power supply voltage into a preset voltage to respectively supply power to the light control module, the buzzer control module, the switch monitoring module and the simulated load module.

8. A test system for an integrated brake control module according to claim 7, characterized in that: The system further comprises a fuse module, and the external power source is connected to the power module via the fuse module.

9. A test system for an integrated brake control module according to claim 8, characterized in that: The communication module includes a CAN port module.

10. A test device for an integrated brake control module, characterized in that: The test device comprises a test system for an integrated brake control module as claimed in claim 9, a control panel and a circuit board, wherein: The signal interference module, fault injection module, signal connection module, status light module, buzzer module and switch module are all configured on the control panel; The light control module, buzzer control module, switch monitoring module, power supply module, fuse module, analog load module and CAN port module are all configured on the circuit board.

Images