Testing device and testing method for data recording system of vehicle

Abstract

The present application proposes a test device (20) for a data recording system (11) of a vehicle (10), in particular an autonomous driving data recording system of an autonomous driving vehicle, where the test device (20) comprises a wireless communication unit (21) configured to be able to receive a wireless remote control signal, a control unit (22) configured to receive a wireless remote control signal, and a trigger unit (23) configured to trigger the wireless remote control signal. The control unit (22) is configured to respond to the received wireless remote control signal to control the triggering unit (23), so that the triggering unit (23) applies triggering force to a collision sensor (12) of the vehicle (10) to trigger a data recording system (11) of the vehicle (10) to record data. The invention further relates to a corresponding testing method. By means of the system and the method, the data recording system of the vehicle can be tested in a low-cost, high-safety and easy-to-realize standardization mode.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and in particular to a test device for a data recording system of a vehicle, especially an autonomous driving data recording system of an autonomous driving vehicle, and a corresponding test method. Background Art

[0002] The vehicle's data recording system plays a very important role in determining accident liability and recreating accident scenes. With the development of vehicle technology, the requirements and / or standards related to the vehicle's data recording system are getting higher and higher. In particular, for vehicles with autonomous driving functions, in order to meet relevant needs (for example, the manufacturer's data recording requirements, the data recording required by the management method, the data recording required by the national standard, etc.), the relevant standard system for the data recording system of vehicles with autonomous driving functions is also in the process of being formulated and improved.

[0003] In order to test the data recording system of a vehicle, the vehicle can be crashed and the function of the data recording system can be verified based on the data recorded by the data recording system in response to the crash event. However, this testing method is costly and unsafe. In particular, for vehicles with autonomous driving functions, the testing of the autonomous driving data recording system needs to be carried out when the vehicle's autonomous driving system is activated. When the autonomous driving system is activated, the conditions for triggering data recording are more dangerous and difficult.

[0004] It is also feasible to test the data recording system through bench testing. However, standardized and unified bench testing requires simulating the hardware conditions required for various vehicles, and needs to simulate and process the signal environment of the original input of various vehicles. Due to the huge differences in software and hardware configurations, it is difficult to build a bench test that is suitable for a variety of different vehicles.

[0005] In addition, the data recording system can be triggered by manually tapping, or the data recording can be triggered by inputting a trigger signal to the data recording system. These test methods have problems such as limited use scenarios, difficulty in achieving standardization, and conflicts with information security systems.

[0006] The existing technology is still insufficient in testing the data recording system of the vehicle. Summary of the invention

[0007] The object of the present application is to provide an improved test device for a vehicle data recording system and a corresponding test method, so as to overcome at least one of the above-mentioned deficiencies of the prior art.

[0008] According to a first aspect of the present application, a test device for a data recording system of a vehicle, in particular an autonomous driving data recording system of an autonomous driving vehicle, is provided. The test device comprises a wireless communication unit, a control unit and a trigger unit. The wireless communication unit is configured to receive a wireless remote control signal. The control unit is configured to control the trigger unit in response to the received wireless remote control signal, so that the trigger unit applies a trigger force to a collision sensor of the vehicle to trigger the data recording system of the vehicle to perform data recording.

[0009] Therefore, during the test of the data recording system, the test equipment can be controlled by means of wireless remote control signals to simulate the vehicle collision scenario as realistically as possible.

[0010] As a result, there is no need to cause a real collision of the vehicle to trigger the data recording system to record data. This helps to reduce costs and improve safety. In particular, for autonomous driving vehicles, the testing of their autonomous driving data recording systems needs to be carried out when the autonomous driving system of the vehicle is activated. When the autonomous driving system is activated, the autonomous driving system will automatically avoid a collision of the vehicle. Therefore, it is difficult to cause a vehicle to collide when the autonomous driving system is activated. Furthermore, it will be even more difficult to formulate unified testing standards for different types of vehicles with autonomous driving functions. Using the test equipment according to the present application, the vehicle's data recording system can be tested in a low-cost, high-safety and easy-to-standardize manner.

[0011] In addition, compared with the method of directly sending a signal for simulating a collision to the data recording system to trigger the data recording system to record data, the test equipment according to the present application can simulate the scene of a vehicle collision in a manner closer to the actual situation, thereby obtaining more accurate and reliable test results. The test equipment does not need to establish a communication connection with the vehicle's driving system and / or data recording system, thereby preventing the data recording system from being illegally accessed or even tampered with by an unqualified or unauthorized third party (system / equipment / personnel).

[0012] In addition, compared with the method in which the operator applies a trigger force to the collision sensor manually or with a tool to trigger the data recording system to record data, the test equipment according to the present application can be applied to more usage scenarios and is easier to standardize. For example, the test equipment can apply a trigger force to a collision sensor that is difficult for the operator to reach during the driving of the vehicle (for example, a collision sensor located at the front bumper of the vehicle). The magnitude of the trigger force can be set in a standardized manner. In addition, the test equipment according to the present application can allow the operator to stay away from the tested vehicle during the test. This helps to improve safety because the operator will not be affected by the safety operations (such as emergency braking) performed by the vehicle in the event of a collision; applying a controllable trigger force to a specific location will not cause more safety protection measures for the vehicle (such as airbag detonation). However, it should be understood that it is also feasible for the test equipment to be remotely controlled by an operator located in the vehicle.

[0013] In an exemplary embodiment, the test device may further include a remote control device configured to send the wireless remote control signal to the wireless communication unit. The remote control device may be provided with an operating element so that the remote control device can send the wireless remote control signal to the wireless communication unit in response to a user operation accepted by the operating element.

[0014] In an exemplary embodiment, the wireless communication unit may be configured to be capable of receiving the wireless remote control signal through at least one of a BT communication connection, an infrared communication connection, a WiFi communication connection, a Bluetooth communication connection, and a ZigBee communication connection.

[0015] In an exemplary embodiment, the collision sensor is a pressure tube sensor and / or an acceleration sensor associated with a pedestrian protection device of the vehicle. The test device can be configured to be installed adjacent to the pressure tube sensor and / or the acceleration sensor. In response to the pressure tube sensor and / or the acceleration sensor being subjected to a trigger force by a trigger unit of the test device, the pedestrian protection device can be ejected to trigger the data recording system of the vehicle to record data.

[0016] In an exemplary embodiment, the test device may include a fixing bracket for fixing the wireless communication unit, the control unit and the trigger unit to the vehicle. The fixing bracket may include, in particular, a grid-shaped support plate and / or a truss-like frame. This helps prevent the test device from obstructing the detection device of the vehicle, in particular the detection device for realizing autonomous driving.

[0017] In an exemplary embodiment, the fixing bracket is configured to be fixed to a vehicle component of a vehicle, such as a front impact beam.

[0018] Optionally, the fixing bracket comprises a hook portion for hanging to the vehicle component, and the hook portion is configured to hook the front anti-collision beam at least from above and from behind.

[0019] Optionally, the fixing bracket comprises a fastener for fastening to said vehicle component.

[0020] In an exemplary embodiment, the trigger unit may include a motor, a gear connected to the motor, and a rack meshing with the gear. The motor can drive the gear to rotate so that the rack can move from a retracted position to an extended position to apply a trigger force to the collision sensor in the extended position.

[0021] In an exemplary embodiment, the trigger unit may include an electromagnet and a driven magnet, wherein the electromagnet can be energized under the control of the control unit so that the driven magnet can move from the retracted position to the extended position by means of the magnetic force applied by the electromagnet, so as to apply the trigger force to the collision sensor in the extended position.

[0022] According to a second aspect of the present application, a test method for a data recording system for a vehicle, in particular an autonomous driving data recording system of an autonomous driving vehicle, is provided. The test method comprises: step S1, installing a test device according to the present application on a vehicle to be tested; step S2, placing the vehicle in a state to be tested; step S3, using a wireless remote control signal to cause a trigger unit of the test device to apply a trigger force to a collision sensor of the vehicle to trigger the data recording system of the vehicle to record data; and step S4, reading data recorded by the data recording system to determine a test result.

[0023] In an exemplary embodiment, in step S2, placing the vehicle in a state to be tested includes: placing the vehicle's automatic driving system in an activated state.

[0024] In an exemplary embodiment, in step S2, placing the vehicle in a state to be tested includes: limiting the driving speed of the vehicle by means of an auxiliary vehicle so that the vehicle drives at a preset test speed. For example, the auxiliary vehicle may drive in front of the vehicle and decelerate so that the speed of the vehicle is reduced to a preset test speed and maintained for at least 3 seconds. The preset test speed is, for example, between 10 km / h and 20 km / h. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present application will be described in more detail below with reference to the accompanying drawings, so that the principles, features and advantages of the present application can be better understood. The accompanying drawings include:

[0026] Figure 1 Schematically shows a test device according to an exemplary embodiment of the present application;

[0027] Figure 2 Schematically shows a structural block diagram of a test device according to an exemplary embodiment of the present application;

[0028] Figure 3 and Figure 4 Schematically illustrates a test device according to an exemplary embodiment of the present application;

[0029] Figure 5 and Figure 6 The retracted position and the extended position of the rack according to the exemplary embodiment of the present application are respectively shown in a top view;

[0030] Figure 7 Schematically illustrates a test device according to an exemplary embodiment of the present application;

[0031] Figure 8 A flow chart schematically illustrates a testing method according to an exemplary embodiment of the present application; and

[0032] Fig. 9 A scenario for executing a testing method according to an exemplary embodiment of the present application is schematically shown.

[0033] Reference numerals list

[0034] 10 Vehicles

[0035] 11 Data Recording System

[0036] 12 Collision Sensor

[0037] 13 Front anti-collision beam

[0038] 20 Test Equipment

[0039] 21 Wireless communication unit

[0040] 22 Control Unit

[0041] 23 Trigger unit

[0042] 231 Motor

[0043] 232 Gear

[0044] 233 Rack

[0045] 234 Electromagnet

[0046] 235 driven magnet

[0047] 24 Remote Control Device

[0048] 241 Operating elements

[0049] 25 Fixing bracket

[0050] 251 Support Plate

[0051] 252 Frame

[0052] 253 Hook

[0053] 254 Fasteners

[0054] 30 Auxiliary vehicles DETAILED DESCRIPTION

[0055] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the scope of protection of the present application.

[0056] Figure 1 A test device 20 for a data recording system 11 of a vehicle 10 according to an exemplary embodiment of the present application is schematically shown. The test device 20 is suitable for testing the data recording system 11 of the vehicle 10, in particular, an autonomous driving data recording system of an autonomous driving vehicle. Figure 2 The structure block diagram of the testing device 20 according to an exemplary embodiment of the present application is schematically shown.

[0057] exist Figure 1 In the example shown, the vehicle 10 is, for example, a smart connected vehicle, which is provided with an autonomous driving data recording system (DSSAD). However, it should be understood that the test device 20 according to the present application can also be applied to other types of vehicles 10 and their data recording systems 11, such as vehicles without autonomous driving functions and their event data recording systems (EDR).

[0058] Figure 1 As shown, the vehicle 10 is also provided with a collision sensor 12 for detecting a collision of the vehicle 10. A test device 20 may be mounted to the vehicle 10 so as to test the data recording system 11 of the vehicle 10.

[0059] Figure 2 The test device 20 is shown to include a wireless communication unit 21, a control unit 22, and a trigger unit 23. The wireless communication unit 21 is configured to receive a wireless remote control signal. The control unit 22 is configured to control the trigger unit 23 in response to the received wireless remote control signal, so that the trigger unit 23 applies a trigger force to the collision sensor 12 of the vehicle 10 to trigger the data recording system 11 of the vehicle 10 to record data.

[0060] During the test of the data recording system 11 of the vehicle 10, the test equipment 20 can be controlled by a wireless remote control signal to apply a trigger force to the collision sensor 12. By applying the trigger force to the collision sensor 12, a collision of the vehicle 10 can be simulated. Therefore, after the collision sensor 12 detects the trigger force, the vehicle 10 can perform a corresponding operation, such as emergency braking, opening the airbag and / or opening the pedestrian protection device. The data recording system 11 of the vehicle 10 will perform corresponding data recording. Furthermore, by checking the data recorded by the data recording system 11, it can be determined whether the data recording system 11 meets the requirements.

[0061] As described above, during the test of the data recording system 11 , the test device 20 may be controlled by means of a wireless remote control signal to simulate a collision scenario of the vehicle 10 as realistically as possible.

[0062] Thus, there is no need to cause the vehicle 10 to actually collide to trigger the data recording system 11 to record data. This helps to reduce costs and improve safety. In particular, for autonomous driving vehicles, the test of their autonomous driving data recording system needs to be carried out when the autonomous driving system of the vehicle 10 is activated. When the autonomous driving system is activated, the autonomous driving system will automatically avoid the vehicle 10 from colliding. Therefore, it is difficult to cause the vehicle 10 to collide when the autonomous driving system is activated. Furthermore, it will be even more difficult to formulate unified testing standards for different types of vehicles 10 with autonomous driving functions. Using the test equipment 20 according to the present application, the data recording system 11 of the vehicle 10 can be tested in a low-cost, high-safety and easy-to-standardize manner.

[0063] In addition, compared with the method of directly sending a signal for simulating a collision to the data recording system 11 to trigger the data recording system 11 to record data, the test device 20 according to the present application can simulate the scene of the vehicle 10 colliding in a manner closer to the actual situation, thereby obtaining a more accurate and reliable test result. The test device 20 does not need to establish a communication connection with the driving system of the vehicle 10 and / or the data recording system 11, thereby preventing the data recording system 11 from being illegally accessed or even tampered with by an unqualified or unauthorized third party (system / equipment / personnel).

[0064] In addition, compared with the method of applying a trigger force to the collision sensor 12 manually or with a tool (such as a hammer) by the operator to trigger the data recording system 11 to record data, the test device 20 according to the present application can be applied to more usage scenarios and is easier to standardize. For example, the test device 20 can apply a trigger force to a collision sensor 12 (such as a collision sensor 12 located at the front bumper of the vehicle 10) that is difficult for the operator to reach during the driving of the vehicle 10. The magnitude of the trigger force can be set in a standardized manner. In addition, the test device 20 according to the present application can allow the operator to stay away from the tested vehicle 10 during the test. This helps to improve safety because the operator will not be affected by the safety operations (such as emergency braking) performed by the vehicle 10 in the event of a collision. According to an exemplary embodiment of the present application, applying a controllable trigger force to a specific position will not cause more safety protection measures (such as airbag detonation) of the vehicle 10. However, it should be understood that it is also feasible for the test device 20 to be remotely controlled by an operator located in the vehicle 10.

[0065] See also Figure 1 and Figure 2 The test device 20 may further include a remote control device 24. The remote control device 24 is configured to be able to send the wireless remote control signal to the wireless communication unit 21. The remote control device 24 may be provided with an operating element 241, so that the remote control device 24 can send the wireless remote control signal to the wireless communication unit 21 in response to the user operation accepted by the operating element 241.

[0066] Optionally, the wireless communication unit 21 may receive a wireless remote control signal from a device such as a computer, a mobile phone or a watch.

[0067] The wireless communication unit 21 may be configured to be able to receive the wireless remote control signal through at least one of BT communication connection, infrared communication connection, WiFi communication connection, Bluetooth communication connection and ZigBee communication connection, for example.

[0068] The control unit 22 may include, for example, a control chip and / or a logic circuit, etc. The control unit 22 may be connected to the wireless communication unit 21, so that the control unit 22 may recognize that the wireless communication unit 21 receives a wireless remote control signal. The control unit 22 may also be connected to the trigger unit 23, so that in response to the wireless remote control signal, a control instruction is sent to the trigger unit 23, so that the trigger unit 23 applies a trigger force to the collision sensor 12.

[0069] According to an exemplary embodiment of the present application, the collision sensor 12 is, for example, a pressure tube sensor and / or an acceleration sensor associated with a pedestrian protection device, which is associated with the pedestrian protection device of the vehicle 10. The test device 20 may be configured to be installed adjacent to the pressure tube sensor and / or the acceleration sensor. In response to the pressure tube sensor and / or the acceleration sensor being applied a trigger force by the trigger unit 23 of the test device 20, the pedestrian protection device may pop out to trigger the data recording system 11 of the vehicle 10 to record data. For example, Figure 1 As shown, the pressure tube sensor can be arranged at the front of the vehicle 10, specifically, near the front anti-collision beam of the vehicle 10. The pressure tube sensor is difficult for the operator to touch during the driving of the vehicle 10. According to the present application, the operator can use the remote control device 24 to conveniently and effectively control the test equipment 20 to apply a trigger force to the pressure tube sensor.

[0070] The collision sensor 12 may also include other types of sensors, such as a piezoelectric sensor.

[0071] In addition, the collision sensor 12 may be associated with other devices of the vehicle 10. For example, the collision sensor 12 may include a collision sensor 12 associated with an airbag of the vehicle 10, so that in response to the collision sensor 12 being triggered by a triggering force applied by the triggering unit 23 of the test device 20, the airbag can be deployed.

[0072] Figure 1 It is shown that during the test, the test device 20 can be installed on the vehicle 10 to be tested and adjacent to the collision sensor 12. To this end, the test device 20 can be fixed to a vehicle component of the vehicle 10, such as a front bumper, a front grille or a hood.

[0073] Figure 3 and Figure 4 A test device 20 according to an exemplary embodiment of the present application is schematically shown. In this embodiment, the collision sensor 12 is a pressure tube sensor associated with a pedestrian protection device of the vehicle 10. The pressure tube sensor can be arranged, for example, between a front anti-collision beam 13 of the vehicle 10 and a buffer foam (not shown here). For testing, the buffer foam can be removed to expose the pressure tube sensor. The test device 20 can then be fixed to the front anti-collision beam 13 and the trigger unit 23 of the test device 20 can be aligned with the pressure tube sensor.

[0074] like Figure 3 and Figure 4As shown, the test device 20 may include a wireless communication unit 21 (not shown), a control unit 22 (not shown), a trigger unit 23, and a fixing bracket 25. The fixing bracket 25 is used to fix the wireless communication unit 21, the control unit 22, and the trigger unit 23 to the vehicle 10. Here, the fixing bracket 25 may be configured to be fixed to the front anti-collision beam 13.

[0075] The test device 20 may have a hollow structure, thereby preventing the test device 20 from blocking the detection device (eg, camera, radar, laser radar, etc.) of the vehicle 10 for realizing automatic driving during the test.

[0076] Optionally, the fixing bracket 25 may include a grid-shaped support plate 251. This helps prevent the test device 20 from blocking the detection device of the vehicle 10, especially the detection device for realizing automatic driving. At least one of the wireless communication unit 21, the control unit 22 and the trigger unit 23 may be fixed to the grid-shaped support plate 251, for example, arranged on the grid-shaped support plate 251.

[0077] Alternatively or additionally, the fixing bracket 25 may include a truss-type frame 252. At least one of the wireless communication unit 21, the control unit 22, and the trigger unit 23 may be fixed to the truss-type frame 252. This also helps prevent the test device 20 from blocking the detection device of the vehicle 10, especially the detection device for realizing autonomous driving.

[0078] exist Figure 3 and Figure 4 In the illustrated embodiment, the fixing bracket 25 may include a hook portion 253 for hanging to the vehicle component. Here, the hook portion 253 may be configured to hook the front anti-collision beam 13 at least from above and from behind.

[0079] The fixing bracket 25 may further include a fastener 254 for fastening to the vehicle component. The fastener 254 may be fastened to the front impact beam 13 from front to rear. The fastener 254 may cooperate with the hook 253 so that the fixing bracket 25 can be stably fixed to the front impact beam 13.

[0080] It should be understood that in other embodiments, the test device 20 may also be fixed to other vehicle components of the vehicle 10, such as a front grille or a front bumper, etc. In addition, the test device 20 may also be fixed to the vehicle components of the vehicle 10 in other ways, such as by clamping, plugging, etc.

[0081] Figure 3 and Figure 4 Different states of the trigger unit 23 before and after the wireless communication unit 21 receives the wireless remote control signal are respectively shown.

[0082] See also Figure 3, the test device 20 is installed adjacent to the pressure sensor. The trigger unit 23 of the test device 20 is aligned with the pressure sensor, but does not apply force to the pressure sensor. After the wireless communication unit 21 receives the wireless remote control signal, the trigger unit 23 applies a trigger force to the pressure sensor under the control of the control unit 22. The pressure sensor is pressed by the trigger unit 23 (see Figure 4 ), thereby triggering the data recording system 11 to record data.

[0083] Figure 3 and Figure 4 It is also shown that the trigger unit 23 of the test device 20 may include a motor 231, a gear 232 connected to the motor 231, and a rack 233 meshing with the gear 232. The motor 231 can drive the gear 232 to rotate, so that the rack 233 can move from the retracted position to the extended position, so as to apply a trigger force to the collision sensor 12 in the extended position.

[0084] Figure 5 and Figure 6 The retracted position and the extended position of the rack 233 are shown from a top view.

[0085] exist Figure 3 and Figure 5 In the embodiment, the rack 233 is in the retracted position. In the retracted position, the rack 233 may be adjacent to the pressure sensor, or may contact the pressure sensor but not apply force to the pressure sensor. After the wireless communication unit 21 receives the wireless remote control signal, the control unit 22 may control the motor 231 to drive the gear 232 to rotate. Accordingly, the rack 233 moves from Figure 3 The retracted position shown is moved towards the pressure sensor to Figure 4 Shown in extended position.

[0086] exist Figure 4 and Figure 6 In the embodiment, the rack 233 is in an extended position. The rack 233 applies a trigger force to the pressure sensor in the extended position, so that the pressure sensor is pressed.

[0087] In other embodiments, the trigger unit 23 may be implemented in other ways. For example, Figure 7 The test device 20 according to an exemplary embodiment of the present application is schematically shown. In this embodiment, the trigger unit 23 of the test device 20 may include an electromagnet 234 and a driven magnet 235. The electromagnet 234 can be energized under the control of the control unit 22, so that the driven magnet 235 can move from the retracted position to the extended position by means of the magnetic force applied by the electromagnet 234, so as to apply a trigger force to the collision sensor 12 in the extended position.

[0088] Figure 8The flowchart schematically shows a test method for a data recording system 11 for a vehicle 10, in particular an autonomous driving data recording system of an autonomous driving vehicle, according to an exemplary embodiment of the present application. The test method can be implemented using a test device 20 according to an exemplary embodiment of the present application. Fig. 9 A scenario for executing a testing method according to an exemplary embodiment of the present application is schematically shown.

[0089] like Figure 8 As shown, the testing method may include steps S1, S2, S3 and S4.

[0090] In step S1, the test device 20 according to the present application is installed on the vehicle 10 to be tested. Fig. 9 , the test device 20 may be mounted at the front of the vehicle 10 to be tested. It should be understood that in the case where the test device 20 includes the remote control device 24, the remote control device 24 need not be mounted to the vehicle 10, but may be held by an operator, who may be located inside the vehicle 10 or outside the vehicle 10.

[0091] In step S2, the vehicle 10 is placed in a state to be tested. The state to be tested may be set according to the requirements of the standards related to the test. For example, placing the vehicle 10 in a state to be tested may include turning on the driving system of the vehicle 10 and / or placing the vehicle 10 in a driving state. The vehicle 10 may be driven in a test field. In the test of the data recording system 11 of the autonomous driving vehicle, placing the vehicle 10 in a state to be tested may include, in particular: placing the autonomous driving system of the vehicle 10 in an activated state and allowing the autonomous driving system to operate stably.

[0092] In step S3 , the trigger unit of the test device 20 applies a trigger force to the collision sensor 12 of the vehicle 10 by using the wireless remote control signal, so as to trigger the data recording system 11 of the vehicle 10 to perform data recording.

[0093] In step S4, the data recorded by the data recording system 11 is read to determine the test result. The read data recorded by the data recording system 11 can be compared with the preset data, and the test result is output based on the data comparison.

[0094] See also Fig. 9 According to an exemplary embodiment of the present application, step S2 further includes: limiting the driving speed of the vehicle 10 by means of the auxiliary vehicle 30 so that the vehicle 10 drives at a preset test speed.

[0095] In particular, the auxiliary vehicle 30 may be driven in front of the vehicle 10 and decelerated so that the speed of the vehicle 10 is reduced to a preset test speed and maintained for at least 3 seconds. In particular, the auxiliary vehicle 30 is used to reduce the speed of the vehicle 10 to a preset test speed and maintain the speed difference with the test speed within ±2 km / h for at least 3 seconds. The preset test speed may be between 10 km / h and 20 km / h.

[0096] In the present application, the auxiliary vehicle 30 refers to a vehicle in the test scene during the test process, which enables the vehicle 10 to perform the expected driving operation through the preset relative position and relative action with the vehicle 10 to be tested. In the concept of the present application, the auxiliary vehicle 30 particularly refers to a vehicle that drives in front of the vehicle 10 to be tested or drives in front of the vehicle 10 to be tested in a lane with restricted lane changes (such as a single lane, a solid lane). At this time, if the auxiliary vehicle 30 slows down, the vehicle 10 to be tested is forced to slow down accordingly and perform a slow following action. In this way, the vehicle 10 to be tested can be reduced to a preset test speed.

[0097] It should be understood that the features and advantages described herein with respect to the testing method are also applicable to the testing apparatus 20 , and vice versa.

[0098] Although the specific embodiments of the present application are described in detail herein, they are provided for the purpose of explanation only and should not be considered to limit the scope of the present application. Various substitutions, changes and modifications may be conceived without departing from the spirit and scope of the present application.

Claims

1. A test device for a data recording system (11) of a vehicle (10), in particular an autonomous driving data recording system of an autonomous driving vehicle, wherein: The test device (20) comprises a wireless communication unit (21), a control unit (22) and a trigger unit (23), wherein the wireless communication unit (21) is configured to receive a wireless remote control signal, and the control unit (22) is configured to control the trigger unit (23) in response to the received wireless remote control signal, so that the trigger unit (23) applies a trigger force to a collision sensor (12) of a vehicle (10) to trigger a data recording system (11) of the vehicle (10) to record data.

2. The test device according to claim 1, wherein: The test device (20) further comprises a remote control device (24), which is configured to be able to send the wireless remote control signal to the wireless communication unit (21), wherein the remote control device (24) is optionally provided with an operating element (241), so that the remote control device (24) can send the wireless remote control signal to the wireless communication unit (21) in response to a user operation accepted by the operating element (241).

3. The test device according to claim 1 or 2, wherein: The wireless communication unit (21) is configured to be able to receive the wireless remote control signal through at least one of BT communication connection, infrared communication connection, WiFi communication connection, Bluetooth communication connection and ZigBee communication connection.

4. The test device according to any one of claims 1 to 3, wherein: The collision sensor (12) is a pressure tube sensor and / or an acceleration sensor associated with a pedestrian protection device of a vehicle (10). The test device (20) is configured to be installed adjacent to the pressure tube sensor and / or the acceleration sensor. In response to a trigger force being applied to the pressure tube sensor and / or the acceleration sensor by a trigger unit (23) of the test device (20), the pedestrian protection device can pop out to trigger a data recording system (11) of the vehicle (10) to record data.

5. The test device according to any one of claims 1 to 4, wherein: The test device (20) comprises a fixing bracket (25), which is used to fix the wireless communication unit (21), the control unit (22) and the trigger unit (23) to the vehicle (10), and the fixing bracket (25) optionally comprises a grid-shaped support plate (251) and / or a truss-type frame (252).

6. The test device according to claim 5, wherein: The fixing bracket (25) is configured to be fixed to a vehicle component of a vehicle (10), wherein: The fixing bracket (25) comprises a hook portion (253) for hanging to the vehicle component, wherein the hook portion (253) is configured to hook the front anti-collision beam (13) at least from above and from behind; and / or The fixing bracket (25) includes a fastener (254) for fastening to the vehicle component; and / or The vehicle component is a front anti-collision beam (13).

7. The test device according to any one of claims 1 to 6, wherein: The trigger unit (23) comprises a motor (231), a gear (232) connected to the motor (231), and a rack (233) meshing with the gear (232); the motor (231) can drive the gear (232) to rotate, so that the rack (233) can move from a retracted position to an extended position, so as to apply a trigger force to the collision sensor (12) at the extended position.

8. The test device according to any one of claims 1 to 7, wherein: The trigger unit (23) comprises an electromagnet (234) and a driven magnet (235), wherein the electromagnet (234) can be energized under the control of a control unit (22), so that the driven magnet (235) can move from a retracted position to an extended position by means of a magnetic force applied by the electromagnet (234), so as to apply a trigger force to the collision sensor (12) at the extended position.

9. A method for testing a data recording system (11) for a vehicle (10), in particular an autonomous driving data recording system for an autonomous driving vehicle, wherein: The test method includes: Step S1, installing a test device (20) according to any one of claims 1 to 8 on a vehicle (10) to be tested; Step S2, putting the vehicle (10) in a state to be tested; Step S3, using a wireless remote control signal to cause a trigger unit (23) of a test device (20) to apply a trigger force to a collision sensor (12) of a vehicle (10), so as to trigger a data recording system (11) of the vehicle (10) to record data; and Step S4, reading the data recorded by the data recording system (11) to determine the test results.

10. The testing method according to claim 9, wherein: In step S2, placing the vehicle (10) in a state to be tested comprises: activating the autonomous driving system of the vehicle (10); and / or The driving speed of the vehicle (10) is limited by means of an auxiliary vehicle (30) so that the vehicle (10) travels at a preset test speed, wherein the auxiliary vehicle (30) optionally travels in front of the vehicle (10) and decelerates so that the speed of the vehicle (10) is reduced to the preset test speed and maintained for at least 3 seconds, and the preset test speed is optionally between 10 km / h and 20 km / h.

Images