Vehicle detection system and vehicle detection equipment

Abstract

The utility model discloses a vehicle detection system and a vehicle detection device, the vehicle comprises a tractor and a trailer, the vehicle detection system comprises a pipeline pressure detection signal acquisition device, the pipeline pressure detection signal acquisition device is connected with a pipeline interface of a pipeline used for providing braking force in the tractor, and the pipeline interface is connected with the pipeline pressure detection signal acquisition device; the pressure sensor is used for acquiring pipeline pressure detection signals in a non-braking state and a braking state; and the trigger diagnosis device is connected with the tractor and the pipeline pressure detection signal acquisition device, and is used for sending the detection trigger signal to the tractor and detecting the braking function of the trailer according to the pipeline pressure detection signal. When the vehicle detection system detects the brake function of the trailer, the brake function of the trailer can be detected in limited space and time, so that the safety and reliability of the trailer can be improved, the quality of the vehicle is improved, and safety accidents are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a vehicle detection system and vehicle detection equipment. Background Art

[0002] The trailer of trailer trucks, RVs, and other special vehicles that use towing methods needs to be connected to the towing vehicle, but these vehicles are generally longer, which brings trouble to the brake test of the trailer. These vehicles are generally not tested for the braking function of their trailers when they leave the factory, or only the brake device of the trailer is tested to see if there is pressure.

[0003] In the related art, if the braking function of the trailer is not tested before leaving the factory, it is easy to cause safety accidents. In addition, the test results need to be manually recorded during the test, which consumes manpower and time. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a vehicle detection system, by which the brake function detection operation of the trailer can be performed in a limited space and time, thereby improving the safety and reliability of the trailer, improving the quality of the vehicle, and avoiding safety accidents.

[0005] A second purpose of the utility model is to provide a vehicle detection device.

[0006] In order to solve the above problems, the first aspect of the utility model provides a vehicle detection system, the vehicle includes a tractor and a trailer, the vehicle detection system includes: a pipeline pressure detection signal acquisition device, the pipeline pressure detection signal acquisition device is connected to the pipeline interface of the pipeline in the tractor for providing braking force, and is used to obtain the pipeline pressure detection signal in a non-braking state and a braking state; a trigger diagnosis device, the trigger diagnosis device is connected to the tractor and the pipeline pressure detection signal acquisition device, and is used to send a detection trigger signal to the tractor, and is used to detect the braking function of the trailer according to the pipeline pressure detection signal.

[0007] According to the vehicle detection system of the utility model, the trigger diagnosis device and the pipeline pressure detection signal acquisition device can be two or more devices, each device is connected by a hard line or a network cable to jointly realize the detection function, or the multiple devices can also be integrated into the same hardware structure to realize the detection of the braking function of the trailer. Among them, the trigger diagnosis device sends a detection trigger signal to the tractor to control the tractor to issue a prompt to prompt the detection personnel to adjust the vehicle to a braking state or restore it to a non-braking state, and the pipeline pressure detection signal acquisition device replaces the trailer and is connected to the tractor, and can directly obtain the pipeline pressure detection signal of the trailer and send it to the trigger diagnosis device, and then the trigger diagnosis device determines whether the braking function of the trailer is normal according to the pipeline pressure detection signal, so that the braking function detection operation of the trailer can be performed in a limited space and time, which can improve the safety and reliability of the trailer, improve the quality of the vehicle, and avoid safety accidents. And the entire above process only requires the detection personnel to adjust the vehicle to a braking state or restore it to a non-braking state according to the prompt, and the vehicle detection system can automatically determine the braking function of the trailer, which can save manpower and time.

[0008] In some embodiments, the tractor is provided with a first braking device, a second braking device and a third braking device. When at least one of the first braking device, the second braking device and the third braking device is in the braking position, the vehicle is in the braking state. When the first braking device, the second braking device and the third braking device are all in the non-braking position, the vehicle is in the non-braking state.

[0009] In some embodiments, the pipeline interface of the pipeline for providing braking force in the tractor includes a pressure supply pipeline interface and a brake pipeline interface.

[0010] In some embodiments, the pipeline pressure detection signal acquisition device includes: a first pressure detection pipeline, a first end of the first pressure detection pipeline is connected to the pressure supply pipeline interface; a second pressure detection pipeline, a first end of the second pressure detection pipeline is connected to the brake pipeline interface.

[0011] In some embodiments, the trigger diagnosis device includes: a diagnosis unit, a first end of the diagnosis unit is connected to the second end of the first pressure detection pipeline and the second end of the second pressure detection pipeline.

[0012] In some embodiments, the trigger diagnostic device further includes: a trigger unit, a first end of which is connected to the tractor, for sending the detection trigger signal to the tractor to prompt at least one of the first braking device, the second braking device and the third braking device to be set to the braking position.

[0013] In some embodiments, the second end of the trigger unit is connected to the second end of the diagnostic unit, and the trigger unit is further used to send the detection trigger signal to the tractor to prompt the tractor to restore the vehicle to the non-braking state when it is determined that the braking function of the trailer is normal in the braking state.

[0014] In some embodiments, the vehicle detection system further includes: an alarm device, which is connected to the trigger diagnosis device and is used to alarm when it is determined that the braking function of the trailer is abnormal.

[0015] In some embodiments, the vehicle detection system also includes: a diagnostic result generating device, which is wirelessly connected to the diagnostic unit and is used to generate a diagnostic result based on the detection data of the braking function; a printing device, which is connected to the diagnostic result generating device and is used to receive and print the diagnostic result.

[0016] The second aspect of the utility model provides a vehicle detection device, comprising: the vehicle detection system described in any one of the above embodiments; at least one processor, the processor and the vehicle detection system are electrically connected; a memory, the memory is communicatively connected to the at least one processor, and the memory stores a computer program that can be executed by the at least one processor.

[0017] According to the vehicle detection device provided by the embodiment of the utility model, the hardware structure of the vehicle detection system of the above embodiment can be directly put into use as a vehicle detection device, or the above vehicle detection system can be added to a vehicle detection device so that the device has the function of detecting the braking function of the trailer. When the vehicle detection device performs the braking function detection of the trailer, the processor executes the computer program stored in the memory to assist the vehicle detection system in realizing the automatic detection of the power supply status of the trailer lights. The detection personnel only need to adjust the vehicle to the braking state or restore it to the non-braking state according to the prompts to realize the detection of the braking function of the trailer, which can save manpower and time.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a block diagram of a vehicle detection system according to an embodiment of the utility model;

[0021] Figure 2It is a block diagram of a pipeline pressure detection signal acquisition device according to an embodiment of the utility model;

[0022] Figure 3 is a block diagram of a trigger diagnosis device according to an embodiment of the utility model;

[0023] Figure 4 is a block diagram of a vehicle detection system according to an embodiment of the utility model;

[0024] Figure 5 is a block diagram of a vehicle detection system according to yet another embodiment of the utility model;

[0025] Figure 6 It is a block diagram of a vehicle detection device according to an embodiment of the utility model.

[0026] Reference numerals:

[0027] Vehicle testing equipment 1000;

[0028] Vehicle detection system 100, processor 200, memory 300;

[0029] Pipeline pressure detection signal acquisition device 10, trigger diagnosis device 20, alarm device 30, diagnosis result generation device 40, printing device 50;

[0030] A first pressure detection pipeline 11 , a second pressure detection pipeline 12 , a diagnosis unit 1 , and a trigger unit 2 . DETAILED DESCRIPTION

[0031] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0032] Reference below Figure 1 Describe the vehicle detection system according to the embodiment of the utility model, Figure 1 is a block diagram of a vehicle detection system according to an embodiment of the present utility model, wherein Figure 1 As shown, the vehicle detection system 100 includes a pipeline pressure detection signal acquisition device 10 and a trigger diagnosis device 20.

[0033] Among them, the structure of vehicles such as trucks, RVs or semi-trailers is usually divided into two parts, a tractor and a trailer. The brakes of the trailer are usually controlled by the inspector at the tractor. However, when inspecting the braking function of the trailer, the trailer is long and has a large body, which is not convenient for inspection. Therefore, a vehicle inspection system 100 can be used to replace the trailer and connect it to the tractor to achieve inspection, wherein the pipeline pressure detection signal acquisition device 10 is connected to the pipeline interface of the pipeline used to provide braking force in the tractor, and is used to obtain the pipeline pressure detection signal in the non-braking state and the braking state. Among them, the tractor provides braking force for the trailer through two pipelines, namely the pressure supply pipeline and the brake pipeline, and the pipeline interfaces of the two pipelines are the pressure supply pipeline interface and the brake pipeline interface.

[0034] After the tractor issues a prompt, the inspector adjusts the vehicle to a braking state or restores it to a non-braking state according to the prompt issued by the tractor, and the pipeline pressure detection signal acquisition device 10 acquires the pipeline pressure detection signals in the non-braking state and the braking state; the trigger diagnosis device 20 is connected to the tractor and the pipeline pressure detection signal acquisition device 10, and is used to send a detection trigger signal to the tractor and acquire the pipeline pressure detection signal, and to determine whether the braking function of the trailer is normal according to the pipeline pressure detection signal of the trailer.

[0035] In some embodiments, a first braking device, a second braking device and a third braking device are provided in the tractor. When at least one of the first braking device, the second braking device and the third braking device is in a braking position, the vehicle is in a braking state. When the first braking device, the second braking device and the third braking device are all in a non-braking position, the vehicle is in a non-braking state.

[0036] It is understandable that for trailer trucks, RVs, and other special vehicles that are towed, three types of braking devices are usually provided, such as brake pedals, hand brakes, and trailer hand brakes, which can correspond to the first braking device, the second braking device, and the third braking device, respectively. It is understandable that when at least one of the brake pedal, hand brake, and trailer hand brake is in the braking position, the vehicle will be in a braking state. Only when the brake pedal, hand brake, and trailer hand brake are all in the non-braking position, the vehicle is in a non-braking state. If at least one of the first braking device, the second braking device, and the third braking device is detected to be unable to work properly according to the pipeline pressure detection signal, it indicates that the braking function of the trailer is abnormal.

[0037] Specifically, the detection of the braking function of the trailer can be performed by detecting the pressure value in the corresponding pipeline. Therefore, when performing the detection of the braking function of the trailer, the trigger diagnosis device 20 will send a detection trigger signal to the tractor, so that the tractor issues a prompt. The detection personnel adjust the vehicle to a braking state or restore it to a non-braking state according to the prompt issued by the tractor. The pipeline pressure detection signal acquisition device 10 is actually a device that replaces the trailer and is connected to the tractor. After the detection personnel adjust the vehicle to a braking state or restore it to a non-braking state according to the prompt issued by the tractor, the pipeline pressure detection signal acquisition device 10 needs to obtain the pipeline pressure detection signal in both states and send the pipeline pressure detection signal to the trigger diagnosis device 20. The trigger diagnosis device 20 detects the pipeline pressure detection signal of the trailer and further determines whether the braking function of the trailer is normal, thereby completing the detection of the braking function of the trailer. It can be understood that the trigger diagnosis device 20 can send different detection trigger signals to the tractor multiple times, and the tractor can prompt the detection personnel to perform different operations according to different detection trigger signals, and each operation of sending the detection trigger signal to the tractor is automatically executed.

[0038] According to the vehicle detection system 100 of the embodiment of the utility model, the trigger diagnosis device 20 and the pipeline pressure detection signal acquisition device 10 can be two or more devices, each device is connected by a hard line or a network cable to jointly realize the detection function, or the multiple devices can also be integrated into the same hardware structure to realize the detection of the braking function of the trailer. Among them, the trigger diagnosis device 20 sends a detection trigger signal to control the tractor to issue a prompt, and the detection personnel adjust the vehicle to a braking state or restore it to a non-braking state according to the prompt issued by the tractor, and the pipeline pressure detection signal acquisition device 10 replaces the trailer and connects to the tractor, and can directly obtain the pipeline pressure detection signal and send it to the trigger diagnosis device 20, and then the trigger diagnosis device 20 determines whether the braking function of the trailer is normal according to the pipeline pressure detection signal, thereby completing the detection of the braking function of the trailer. The pipeline pressure detection signal acquisition device 10 can directly replace the trailer to complete the detection, which can improve the safety and reliability of the trailer, improve the quality of the vehicle, and avoid safety accidents. And the entire above process only requires the inspection personnel to adjust the vehicle to a braking state or restore it to a non-braking state according to the prompts. The remaining process can be automatically completed by the pipeline pressure detection signal acquisition device 10 and the trigger diagnosis device 20 without manual intervention, which can save manpower and time.

[0039] In some embodiments, Figure 2 is a block diagram of a pipeline pressure detection signal acquisition device according to an embodiment of the present utility model, referring to Figure 2As shown, the pipeline pressure detection signal acquisition device 10 includes a first pressure detection pipeline 11 and a second pressure detection pipeline 12, and the pipeline pressure detection signals acquired from the two detection pipelines are respectively the first pipeline pressure detection signal and the second pipeline pressure detection signal.

[0040] Under normal circumstances, the trailer's pressure supply pipeline is connected to the tractor's pressure supply pipeline interface, and the trailer's brake pipeline is connected to the tractor's brake pipeline interface. The tractor controls the pressure in the brake pipeline by controlling the pressure supply pipeline to adjust the vehicle to a braking state or restore it to a non-braking state, thereby achieving braking of the entire vehicle. In the detection state, the vehicle detection system 100 replaces the trailer and is connected to the tractor. Thus, the first pressure detection pipeline 1 replaces the pressure supply pipeline in the trailer, and the first end of the first pressure detection pipeline 1 is connected to the tractor's pressure supply pipeline interface to obtain a first pipeline pressure detection signal; the second pressure detection pipeline 2 replaces the brake pipeline in the trailer, and the first end of the second pressure detection pipeline 2 is connected to the tractor's brake pipeline interface to obtain a second pipeline pressure detection signal.

[0041] In some embodiments, Figure 3 is a block diagram of a trigger diagnosis device according to an embodiment of the present utility model, referring to Figure 3 As shown, the trigger diagnostic device 20 includes a diagnostic unit 1 .

[0042] Among them, the first end of the diagnostic unit 1 is connected to the second end of the first pressure detection pipeline 1 and the second end of the second pressure detection pipeline 2, and is used to obtain the first pipeline pressure detection signal and the second pipeline pressure detection signal, and determine the braking function of the trailer based on the first pipeline pressure detection signal and the second pipeline pressure detection signal.

[0043] Specifically, after the pipeline pressure detection signal acquisition device 10 acquires the pipeline pressure detection signal, it directly sends it to the diagnosis unit 1. The diagnosis unit 1 can determine the pressure of the corresponding pipeline according to the received pipeline pressure detection signal, and judge the braking function of the trailer according to the pipeline pressure.

[0044] In other embodiments, Figure 3 As shown, the trigger diagnosis device 20 includes a trigger unit 2. The first end of the trigger unit 2 is connected to the tractor for sending a detection trigger signal to the tractor to prompt at least one of the first brake device, the second brake device and the third brake device to be set in a braking position.

[0045] Specifically, taking the brake pedal of the first braking device as an example, after the tractor responds to the detection trigger signal sent by the trigger unit 2 to restore the vehicle to the non-braking state, the inspection personnel restore the first braking device, the second braking device and the third braking device to the non-braking position, the inspection personnel releases the brake pedal, releases the handbrake and the trailer handbrake, and the vehicle returns to the non-braking state.

[0046] In other embodiments, the second end of the trigger unit 2 is connected to the second end of the diagnostic unit 1, and the trigger unit 2 is further used to send a detection trigger signal to the tractor to prompt the vehicle to be restored to a non-braking state when it is determined that the braking function of the trailer is normal in the braking state.

[0047] It can be understood that the pipeline pressure detection signal acquisition device 10 needs to obtain the pipeline pressure detection signals in the non-braking state and the braking state. Each time the vehicle is adjusted to the braking state or restored to the non-braking state, the pipeline pressure detection signal acquisition device 10 needs to obtain the first pipeline pressure detection signal and the second pipeline pressure detection signal in the corresponding state once.

[0048] Specifically, after the trigger unit 2 sends a detection trigger signal to the tractor for the first time, it is used to prompt the vehicle to be restored to a non-braking state. After the pipeline pressure detection signal acquisition device 10 acquires the first pipeline pressure detection signal and the second pipeline pressure detection signal in the non-braking state, the diagnostic unit 1 acquires their corresponding pressure values ​​respectively, and compares the pressure value in the pressure detection pipeline with the pressure threshold of the corresponding pipeline working normally in the corresponding state, thereby being able to judge the braking function of the trailer.

[0049] It is understandable that the program of this method has pre-written the pipeline pressure thresholds when the vehicle's brake device is working normally in the braking state and the non-braking state. For example, when the vehicle is in the non-braking state, the pipeline pressure in the supply pipeline is usually 7.5bar-16bar, and there is usually no pressure in the brake pipeline. Therefore, the first pressure threshold can be set to 7.5bar-16bar and the second pressure threshold can be set to 0. Also, when the vehicle is in the braking state, if the brake devices in the vehicle are working normally, the pipeline pressure in the supply pipeline is usually 7.5bar-16bar, and the pipeline pressure in the brake pipeline is also usually 7.5bar-16bar. The third pressure threshold and the fourth pressure threshold are both 7.5bar-16bar. The following description will take this as an example. In some embodiments, when determining the braking function of the trailer according to the line pressure detection signal, the diagnostic unit 1 is used to, in a braking state, determine that the pressure value in the first pressure detection line 11 satisfies the first pressure threshold according to the first line pressure detection signal, and determine that the pressure value in the second pressure detection line 12 satisfies the second pressure threshold according to the second line pressure detection signal; and, in a non-braking state, determine that the pressure value in the first pressure detection line 11 satisfies the third pressure threshold according to the first line pressure detection signal, and determine that the pressure value in the second pressure detection line 12 satisfies the fourth pressure threshold according to the second line pressure detection signal, to determine that the braking function of the trailer is normal.

[0050] Based on the above, in the non-braking state, when it is determined that the pressure value in the first pressure detection pipeline 11 meets the first pressure threshold and the pressure value in the second pressure detection pipeline 12 meets the second pressure threshold. Then, the trigger unit 2 sends a detection trigger signal to the tractor again to prompt the adjustment of the first braking device to the braking position to adjust the vehicle to the braking state. The detection personnel step on the brake pedal, the vehicle is in the braking state, and the pipeline pressure detection signal acquisition device 10 acquires the first pipeline pressure detection signal and the second pipeline pressure detection signal in the braking state and respectively acquires their corresponding pressure values. When it is determined that the pressure value in the first pressure detection pipeline 11 meets the third pressure threshold and the pressure value in the second pressure detection pipeline 12 meets the fourth pressure threshold, it means that the braking function of the first braking device is normal. If not, it means that the braking function of the vehicle is abnormal and needs to be repaired.

[0051] Furthermore, the detection of the braking functions of the second braking device and the third braking device may refer to the above detection process, which will not be described in detail here.

[0052] In other embodiments, when determining the braking function of the trailer according to the pipeline pressure detection signal, the diagnostic unit 1 is also used to, in the braking state, determine that the pressure value in the first pressure detection pipeline does not meet the first pressure threshold according to the first pipeline pressure detection signal, determine that the braking function of the trailer is abnormal and report an error; or, in the braking state, determine that the pressure value in the second pressure detection pipeline does not meet the second pressure threshold according to the second pipeline pressure detection signal, determine that the braking function of the trailer is abnormal and report an error; or, in the non-braking state, determine that the pressure value in the first pressure detection pipeline does not meet the third pressure threshold according to the first pipeline pressure detection signal, determine that the braking function of the trailer is abnormal and report an error; or, in the non-braking state, determine that the pressure value in the second pressure detection pipeline does not meet the fourth pressure threshold according to the second pipeline pressure detection signal, determine that the braking function of the trailer is abnormal and report an error.

[0053] Specifically, the pressure value in the corresponding pressure detection pipeline is determined according to the obtained pipeline pressure detection signal, and by comparing the pressure value in the pressure detection pipeline with the corresponding pipeline pressure threshold, if the pressure value in the pressure detection pipeline does not meet the corresponding pipeline pressure threshold, it is determined that the braking function of the trailer is abnormal and an error is reported, and maintenance is required. That is to say, during the detection process, if there is a pressure value in the pressure detection pipeline that does not meet the pressure threshold of the corresponding pipeline, the braking system is determined to be faulty. For example, due to a pipeline installation error, the pressure value in the first pressure detection pipeline is 0, and it does not meet the first pressure threshold of 7.5bar-16bar in the non-braking state, then it is considered that the braking function of the trailer is abnormal and an error is reported. At this time, the detection personnel can directly receive the error message, directly manually stop the detection program being executed, and interrupt the detection.

[0054] In some embodiments, Figure 5 is a block diagram of a vehicle detection system according to an embodiment of the present utility model, wherein reference is made to Figure 5 As shown, in other embodiments, the diagnostic unit 1 can also be configured to include a display, which can display the abnormal braking function of the trailer on the screen, and display the error corresponding to the abnormal braking function of the trailer on the screen, and can prompt the inspection personnel that maintenance is required in the form of text or light.

[0055] In some embodiments, Figure 4 is a block diagram of a vehicle detection system according to an embodiment of the present utility model, wherein reference is made to Figure 4As shown, the vehicle detection system 100 also includes an alarm device 30, which is connected to the trigger diagnosis device 20 and is used to alarm when it is determined that the brake function of the trailer is abnormal. The alarm device 30 can be configured to include a display, which can display the information of the brake function abnormality on the screen, and display the error corresponding to the pressure detection pipeline of the trailer's brake function abnormality on the screen, and can prompt the detection personnel to perform maintenance in the form of text or light.

[0056] In other embodiments, reference Figure 4 As shown, the vehicle detection system 100 further includes a diagnosis result generating device 40 and a printing device 50 .

[0057] The diagnostic result generating device 40 is wirelessly connected to the diagnostic unit 1 to obtain the detection data of the braking function of the trailer and generate the diagnostic result according to the detection data of the braking function; the printing device 50 is connected to the diagnostic result generating device 40 to receive and print the diagnostic result. The diagnostic result generating device 40 can use factory IT (Information Technology), which can sort out the final detection results, and the printing device 50 can use a printer or printing equipment.

[0058] Specifically, Figure 5 is a block diagram of a vehicle detection system according to another embodiment of the utility model, wherein the alarm device 30 is not shown in the figure. Figure 5 In the description, an example is taken in which the pipeline pressure detection signal acquisition device 10 adopts an existing trailer detection device or trailer detection equipment, the trigger diagnosis device 2 can be a diagnostic instrument PORTY, the diagnosis result generation device 40 is a factory IT, and the printing device 50 is a printer. The diagnosis unit 1 can be connected to the factory IT via WiFi (wireless fidelity, wireless network communication technology), the factory IT can sort out the final detection results, the factory IT and the printer are connected via a network cable, and the detection results can be sent to the printer, and the printer prints them out. In addition, when the diagnostic unit 1 determines that the braking function of the trailer fails, an error is reported and the error information is sent to the factory IT via WiFi, and the factory IT can also record the error report.

[0059] The second embodiment of the utility model provides a vehicle detection device, such as Figure 6 , which is a block diagram of a vehicle detection device according to another embodiment of the present utility model, wherein the vehicle detection device 1000 includes a vehicle detection system 100 , a processor 200 and a memory 300 .

[0060] Among them, there is at least one processor 200, and the processor 200 is electrically connected to the vehicle detection system 100; the memory 300 is communicatively connected to the at least one processor 200, and the memory 300 stores a computer program that can be executed by the at least one processor.

[0061] According to the vehicle detection device 1000 provided in the embodiment of the utility model, the hardware structure of the vehicle detection system 100 of the above embodiment can be directly put into use as the vehicle detection device 1000, or the above vehicle detection system 100 can be added to a vehicle detection device 1000, so that the device has the function of detecting the braking function of the trailer. Among them, when the vehicle detection device 1000 automatically performs the braking function detection of the trailer with the assistance of the detection personnel, the processor 200 executes the computer program stored in the memory 300 to assist the vehicle detection system 100 in realizing the automatic detection of the braking function of the trailer, which can save manpower and time, and can improve the safety and reliability of the trailer through detection, improve the quality of the vehicle, and avoid safety accidents.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0063] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vehicle detection system, characterized in that: The vehicle includes a tractor and a trailer, and the vehicle detection system includes: A pipeline pressure detection signal acquisition device, the pipeline pressure detection signal acquisition device is connected to a pipeline interface of a pipeline in the tractor for providing braking force, and is used to acquire pipeline pressure detection signals in a non-braking state and a braking state; A trigger diagnostic device is connected to the tractor and the pipeline pressure detection signal acquisition device, and is used to send a detection trigger signal to the tractor, and is used to detect the braking function of the trailer according to the pipeline pressure detection signal.

2. The vehicle detection system according to claim 1, characterized in that: The tractor is provided with a first braking device, a second braking device and a third braking device. When at least one of the first braking device, the second braking device and the third braking device is in the braking position, the vehicle is in the braking state. When the first braking device, the second braking device and the third braking device are all in the non-braking position, the vehicle is in the non-braking state.

3. The vehicle detection system according to claim 2, characterized in that: The pipeline interface of the pipeline for providing braking force in the tractor includes a pressure supply pipeline interface and a brake pipeline interface.

4. The vehicle detection system according to claim 3, characterized in that: The pipeline pressure detection signal acquisition device comprises: A first pressure detection pipeline, wherein a first end of the first pressure detection pipeline is connected to the pressure supply pipeline interface; A second pressure detection pipeline, wherein a first end of the second pressure detection pipeline is connected to the brake pipeline interface.

5. The vehicle detection system according to claim 4, characterized in that: The trigger diagnosis device comprises: A diagnostic unit, wherein a first end of the diagnostic unit is connected to a second end of the first pressure detection pipeline and a second end of the second pressure detection pipeline.

6. The vehicle detection system according to claim 5, characterized in that: The trigger diagnosis device also includes: A trigger unit, a first end of which is connected to the tractor, is used to send the detection trigger signal to the tractor to prompt at least one of the first braking device, the second braking device and the third braking device to be set in the braking position.

7. The vehicle detection system according to claim 6, characterized in that: The second end of the trigger unit is connected to the second end of the diagnostic unit. The trigger unit is also used to send the detection trigger signal to the tractor to prompt the tractor to restore the vehicle to the non-braking state when it is determined that the braking function of the trailer is normal in the braking state.

8. The vehicle detection system according to claim 1, characterized in that: The vehicle detection system also includes: An alarm device is connected to the trigger diagnosis device and is used to alarm when it is determined that the braking function of the trailer is abnormal.

9. The vehicle detection system according to claim 5, characterized in that: The vehicle detection system also includes: a diagnostic result generating device, the diagnostic result generating device being wirelessly connected to the diagnostic unit and configured to generate a diagnostic result based on the detection data of the braking function; A printing device, the printing device is connected to the diagnosis result generating device, and is used to receive and print the diagnosis result.

10. A vehicle detection device, characterized in that: include: The vehicle detection system according to any one of claims 1 to 9; at least one processor, the processor being electrically connected to the vehicle detection system; A memory, the memory is communicatively connected to the at least one processor, and the memory stores a computer program executable by the at least one processor.

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