CN222212263U - Vehicle detection system and vehicle detection apparatus - Google Patents

Abstract

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

Description

Vehicle detection system and vehicle detection apparatus

Technical Field

The present utility model relates to the field of vehicle technologies, and in particular, to a vehicle detection system and a vehicle detection device.

Background

Trailer trucks, caravans, and other special vehicles employing a trailer need to be connected to the towing vehicle in its trailer portion, but such vehicles are typically long, which can be cumbersome to brake testing of the trailer, and such vehicles typically do not detect the braking function of their trailer when shipped, or simply test whether the trailer's braking device is pressurized.

In the related art, if the braking function of the trailer is not tested when leaving the factory, safety accidents are easy to occur, and the detection result needs to be manually recorded during detection, so that labor and time are consumed.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a vehicle detection system, by which an operation of detecting a braking function of a trailer can be performed in a limited space and time, so that safety and reliability of the trailer can be improved, quality of a vehicle can be improved, and occurrence of a safety accident can be avoided.

It is a second object of the present utility model to provide a vehicle detection apparatus.

In order to solve the problems, the first aspect of the embodiment of the utility model provides a vehicle detection system, the vehicle comprises a tractor and a trailer, the vehicle detection system comprises a pipeline pressure detection signal acquisition device, a trigger diagnosis device and a trigger diagnosis device, wherein the pipeline pressure detection signal acquisition device is connected with a pipeline interface of a pipeline for providing braking force in the tractor and is used for acquiring pipeline pressure detection signals in a non-braking state and a braking state, the trigger diagnosis device is connected with the tractor and the pipeline pressure detection signal acquisition device and is used for sending detection trigger signals to the tractor and is used for detecting the braking function of the trailer according to the pipeline pressure detection signals.

According to the vehicle detection system of the present utility model, the trigger diagnosis device and the line pressure detection signal acquisition device may be two or more devices, each of which is connected by a hard wire or a network line to jointly realize the detection function, or may be integrated into the same hardware structure for realizing the detection of the braking function of the trailer. The trigger diagnosis device is used for sending a detection trigger signal to the tractor and controlling the tractor to send a prompt so as to prompt a detector to adjust the vehicle to a braking state or restore the vehicle to a non-braking state, the pipeline pressure detection signal acquisition device is connected with the tractor instead of the trailer and can directly acquire the pipeline pressure detection signal of the trailer and send the pipeline pressure detection signal to the trigger diagnosis device, and the trigger diagnosis device is used for judging whether the braking function of the trailer is normal or not according to the pipeline pressure detection signal, so that the operation of detecting the braking function of the trailer can be executed in a limited space and time, the safety and the reliability of the trailer can be improved, the quality of the vehicle can be improved, and the occurrence of safety accidents can be avoided. And the whole process only needs a detector to adjust the vehicle to a braking state or restore the vehicle to a non-braking state according to the prompt, and the vehicle detection system can automatically judge the braking function of the trailer, so that the labor and time can be saved.

In some embodiments, a first brake device, a second brake device, and a third brake device are disposed in the tractor, the vehicle being in the braked state when at least one of the first brake device, the second brake device, and the third brake device is in the braked position, and the vehicle being in the non-braked state when all of the first brake device, the second brake device, and the third brake device are in the non-braked position.

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

In some embodiments, the line pressure detection signal acquisition device includes a first pressure detection line having a first end interfaced with the pressure supply line and a second pressure detection line having a first end interfaced with the brake line.

In some embodiments, the triggered diagnostic device includes a diagnostic unit having a first end coupled to the second end of the first pressure detection line and the second end of the second pressure detection line.

In some embodiments, the trigger diagnostic device further comprises a trigger unit having a first end coupled to the tractor for transmitting the detected trigger signal to the tractor to prompt placement of at least one of the first brake device, the second brake device, and the third brake device in the braking position.

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 configured to send the detection trigger signal to the tractor to prompt the vehicle to return to the non-braking state when it is determined that the braking function of the trailer is normal in the braking state.

In some embodiments, the vehicle detection system further comprises an alarm device coupled to the trigger diagnostic device for alerting when a braking malfunction of the trailer is determined.

In some embodiments, the vehicle detection system further comprises a diagnosis result generation device which is connected with the diagnosis unit in a wireless way and is used for generating a diagnosis result according to the detection data of the braking function, and a printing device which is connected with the diagnosis result generation device and is used for receiving and printing the diagnosis result.

An embodiment of a second aspect of the present utility model provides a vehicle detection apparatus, including a vehicle detection system according to any one of the embodiments, at least one processor electrically connected to the vehicle detection system, and a memory communicatively connected to the at least one processor, wherein the memory stores a computer program executable by the at least one processor.

According to the vehicle detection device provided by the embodiment of the utility model, the hardware structure of the vehicle detection system of the embodiment can be directly used as the vehicle detection device, and the vehicle detection system can be added into the vehicle detection device, so that the device has the function of detecting the braking function of the trailer. When the vehicle detection equipment detects the braking function of the trailer, the processor executes the computer program stored in the memory, so that the vehicle detection system is assisted to realize automatic detection of the power supply state of the vehicle lamp of the trailer, and only a detection person is required to adjust the vehicle to the braking state or restore the vehicle to the non-braking state according to the prompt, so that the detection of the braking function of the trailer can be realized, and the labor and time can be saved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a block diagram of a vehicle detection system according to one embodiment of the utility model;

FIG. 2 is a block diagram of a line pressure detection signal acquisition device according to one embodiment of the utility model;

FIG. 3 is a block diagram of a trigger diagnostic device according to one embodiment of the present utility model;

FIG. 4 is a block diagram of a vehicle detection system according to one embodiment of the utility model;

FIG. 5 is a block diagram of a vehicle detection system according to yet another embodiment of the present utility model;

fig. 6 is a block diagram of a vehicle detection apparatus according to an embodiment of the present utility model.

Reference numerals:

A vehicle detection apparatus 1000;

A vehicle detection system 100, a processor 200, a memory 300;

A pipeline pressure detection signal acquisition device 10, a trigger diagnosis device 20, an alarm device 30, a diagnosis result generation device 40 and a printing device 50;

a first pressure detection pipeline 11, a second pressure detection pipeline 12, a diagnosis unit 1 and a triggering unit 2.

Detailed Description

Embodiments of the present utility model will be described in detail below, by way of example with reference to the accompanying drawings.

A vehicle detection system according to an embodiment of the present utility model is described below with reference to fig. 1, and fig. 1 is a block diagram of a vehicle detection system according to an embodiment of the present utility model, wherein the vehicle detection system 100 includes a line pressure detection signal acquisition device 10 and a trigger diagnosis device 20 as shown in fig. 1.

The structure of a vehicle such as a truck, a caravan or a semitrailer is generally divided into two parts, namely, a tractor and a trailer, and the braking of the trailer is generally controlled by a detecting person at the tractor, but when the braking function of the trailer is detected, the length of the trailer is long and the vehicle body is large, so that the detection is inconvenient, and therefore, the vehicle detection system 100 can be used for replacing the connection of the trailer and the tractor to realize the detection, wherein the pipeline pressure detection signal acquisition device 10 is connected with a pipeline interface of a pipeline for providing braking force in the tractor, and is used for acquiring pipeline pressure detection signals in a non-braking state and a braking state. The traction vehicle provides braking force for the trailer through two pipelines, namely a pressure supply pipeline and a braking pipeline, and pipeline interfaces of the two pipelines are respectively a pressure supply pipeline interface and a braking pipeline interface.

After the tractor gives a prompt, when a detector adjusts the vehicle to a braking state or restores to a non-braking state according to the prompt given by the tractor, the pipeline pressure detection signal obtaining device 10 obtains pipeline pressure detection signals in the non-braking state and in the braking state, the trigger diagnosis device 20 is connected with the tractor and the pipeline pressure detection signal obtaining device 10 and is used for sending a detection trigger signal to the tractor and obtaining the pipeline pressure detection signal, and judging whether the braking function of the trailer is normal according to the pipeline pressure detection signal of the trailer.

In some embodiments, the first, second and third brake devices are disposed in the tractor, and the vehicle is in a braked state when at least one of the first, second and third brake devices is in a braked position, and is in a non-braked state when the first, second and third brake devices are all in a non-braked position.

It will be appreciated that for a pull truck, a caravan, and other special vehicles employing a pull mode, three types of braking devices, such as a brake pedal, a hand brake, and a trailer hand brake, are typically provided, and the three types of braking devices may be respectively used as a first braking device, a second braking device, and a third braking device. It will be appreciated that when at least one of the brake pedal, the hand brake and the trailer hand brake is in the braking position, the vehicle will be in a braking state, and when only the brake pedal, the hand brake and the trailer hand brake are in the non-braking position, the vehicle is in the non-braking state, and if at least one of the first brake device, the second brake device and the third brake device is detected to be unable to work normally according to the pipeline pressure detection signal, the abnormal braking function of the trailer is indicated.

Specifically, the detection of the braking function of the trailer may be performed by detecting the pressure value in the corresponding pipeline, so when the detection of the braking function of the trailer is performed, the trigger diagnosis device 20 may send a detection trigger signal to the tractor, so that the tractor sends a prompt, the detection personnel adjusts the vehicle to the braking state or restores to the non-braking state according to the prompt sent by the tractor, the pipeline pressure detection signal acquisition device 10 is actually a device for replacing the trailer to be connected with the tractor, after the detection personnel adjusts the vehicle to the braking state or restores to the non-braking state according to the prompt sent by the tractor, the pipeline pressure detection signal acquisition device 10 needs to acquire pipeline pressure detection signals in both states, and sends the pipeline pressure detection signals to the trigger diagnosis device 20, and the trigger diagnosis device 20 detects the pipeline pressure detection signal of the trailer to further determine whether the braking function of the trailer is normal, thereby completing the detection of the braking function of the trailer. It will be appreciated that the trigger diagnostic device 20 may send different detection trigger signals to the tractor multiple times, the tractor may prompt the inspector to perform different operations according to the different detection trigger signals, and each time the operation of sending the detection trigger signal to the tractor is performed automatically.

According to the vehicle detection system 100 of the embodiment of the present utility model, the trigger diagnosis device 20 and the line pressure detection signal acquisition device 10 may be two or more devices, each of which is connected by a hard wire or a network, so as to jointly implement the detection function, or the multiple devices may be integrated into the same hardware structure so as to implement the detection of the braking function of the trailer. The trigger diagnosis device 20 sends a detection trigger signal to control the tractor to send a prompt, a detector adjusts the vehicle to a braking state or restores to a non-braking state according to the prompt sent by the tractor, the pipeline pressure detection signal acquisition device 10 is connected with the tractor instead of the trailer, can directly acquire the pipeline pressure detection signal and send the pipeline pressure detection signal to the trigger diagnosis device 20, and then the trigger diagnosis device 20 judges whether the braking function of the trailer is normal according to the pipeline pressure detection signal, so that the detection of the braking function of the trailer is completed, the pipeline pressure detection signal acquisition device 10 can directly replace the trailer to complete the detection, the safety and the reliability of the trailer can be improved, the quality of the vehicle is improved, and the occurrence of safety accidents is avoided. And the whole process just needs a detector to adjust the vehicle to a braking state or restore the vehicle to a non-braking state according to the prompt, and the rest process can be automatically completed by the pipeline pressure detection signal acquisition device 10 and the trigger diagnosis device 20 without manual intervention, so that the manpower and time can be saved.

In some embodiments, fig. 2 is a block diagram of a line pressure detection signal acquisition device according to one embodiment of the present utility model, and referring to fig. 2, the line pressure detection signal acquisition device 10 includes a first line pressure detection line 11 and a second line pressure detection line 12, and the line pressure detection signals acquired from the two detection lines are the first line pressure detection signal and the second line pressure detection signal, respectively.

Under normal conditions, the pressure supply pipeline of the trailer is connected with the pressure supply pipeline interface of the tractor, the brake pipeline of the trailer is connected with the brake pipeline interface of the tractor, and the tractor controls the pressure in the brake pipeline by controlling the pressure supply pipeline to realize that the vehicle is regulated to a braking state or is restored to a non-braking state, so that the braking of the whole vehicle is realized. In the inspection state, the vehicle inspection system 100 is connected to the tractor instead of the trailer, whereby the above-mentioned first pressure inspection line 1 is connected to the pressure supply line interface of the tractor at a first end of the first pressure inspection line 1 for acquiring the first line pressure inspection signal, and the second pressure inspection line 2 is connected to the brake line interface of the tractor at a first end of the second pressure inspection line 2 for acquiring the second line pressure inspection signal instead of the brake line in the trailer.

In some embodiments, fig. 3 is a block diagram of a trigger diagnostic apparatus according to one embodiment of the present utility model, and referring to fig. 3, the trigger diagnostic apparatus 20 includes a diagnostic unit 1.

Wherein 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 for obtaining a first pipeline pressure detection signal and a second pipeline pressure detection signal, and determining a braking function of the trailer according to the first pipeline pressure detection signal and the second pipeline pressure detection signal.

Specifically, after the pipeline pressure detection signal is obtained by the pipeline pressure detection signal obtaining device 10, the pipeline pressure detection signal is directly sent to the diagnosis unit 1, and 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.

In other embodiments, as shown in fig. 3, the trigger diagnostic device 20 includes a trigger unit 2. The first end of the triggering unit 2 is connected with the tractor and is used for sending a detection triggering signal to the tractor so as to prompt at least one of the first braking device, the second braking device and the third braking device to be arranged at a braking position.

Specifically, taking the brake pedal of the first brake device as an example, after the tractor responds to the detection trigger signal sent by the trigger unit 2 to prompt the vehicle to recover to the non-braking state, the detection personnel recover to the non-braking position by both the first brake device and the second brake device and the third brake device, the detection personnel release the brake pedal, put down the hand brake and the hand brake of the trailer, and the vehicle recovers to the non-braking state.

In other embodiments, the second end of the triggering unit 2 is connected to the second end of the diagnostic unit 1, and the triggering unit 2 is further configured to send a detection triggering signal to the tractor to prompt the vehicle to return to the non-braking state when it is determined that the braking function of the trailer is normal in the braking state.

It will be appreciated that the line pressure detection signal acquisition device 10 is required to acquire the line pressure detection signal in the non-braking state and the braking state, and each time the vehicle is adjusted to the braking state or returned to the non-braking state, the line pressure detection signal acquisition device 10 is required to acquire the first line pressure detection signal and the second line pressure detection signal in the respective states once.

Specifically, after the triggering unit 2 sends the detection trigger signal to the tractor for the first time, the triggering unit is used for prompting the vehicle to be restored to the 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 diagnosis unit 1 acquires the corresponding pressure values respectively, and the braking function of the trailer can be further judged by comparing the pressure values in the pressure detection pipelines with the pressure threshold values of the corresponding pipelines which normally work in the corresponding states.

It will be appreciated that the program of the method is written in advance with a line pressure threshold for normal operation of the brake device in a braked state and a non-braked state of the vehicle, for example, the line pressure in the supply line is typically 7.5bar to 16bar and the brake line is typically not pressurized, whereby the first pressure threshold may be set to 7.5bar to 16bar and the second pressure threshold may be set to 0. And, in a braking state of the vehicle, if the braking devices in the vehicle are all working normally, the line pressure in the supply line is typically 7.5bar to 16bar, the line pressure in the braking line is also typically 7.5bar to 16bar, and the third pressure threshold and the fourth pressure threshold are both 7.5bar to 16bar. This will be described below by way of example. In some embodiments, in determining the braking function of the trailer from the line pressure detection signals, the diagnostic unit 1 is configured to determine that, in a braking state, the pressure value in the first pressure detection line 11 satisfies a first pressure threshold value from the first line pressure detection signals and the pressure value in the second pressure detection line 12 satisfies a second pressure threshold value from the second line pressure detection signals, and, in a non-braking state, determine that the pressure value in the first pressure detection line 11 satisfies a third pressure threshold value from the first line pressure detection signals and the pressure value in the second pressure detection line 12 satisfies a fourth pressure threshold value from the second line pressure detection signals, and determine that the braking function of the trailer is normal.

Based on the above, in the non-braking state, when it is determined that the pressure value in the first pressure detection line 11 satisfies the first pressure threshold value and the pressure value in the second pressure detection line 12 satisfies the second pressure threshold value. Then, the triggering unit 2 sends a detection trigger signal to the tractor again to prompt the first braking device to be adjusted to the braking position so as to adjust the vehicle to the braking state, the detection personnel presses the brake pedal, the vehicle is in the braking state, 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 corresponding pressure values, when the pressure value in the first pressure detection pipeline 11 is determined to meet the third pressure threshold value and the pressure value in the second pressure detection pipeline 12 is determined to meet the fourth pressure threshold value, the braking function of the first braking device is normal, and if the pressure value does not meet the third pressure threshold value, the abnormal braking function of the vehicle is indicated, and maintenance is needed.

Further, reference may be made to the above detection procedure for detection of the braking functions of the second braking device and the third braking device, and no further description is given here.

In other embodiments, the diagnostic unit 1 is further configured to determine, in a braking state, that the pressure value in the first pressure detection pipeline does not satisfy the first pressure threshold value according to the first pipeline pressure detection signal, determine that the braking function of the trailer is abnormal and error-reported, or determine, in a braking state, that the pressure value in the second pressure detection pipeline does not satisfy the second pressure threshold value according to the second pipeline pressure detection signal, determine that the braking function of the trailer is abnormal and error-reported, or determine, in a non-braking state, that the pressure value in the first pressure detection pipeline does not satisfy the third pressure threshold value according to the first pipeline pressure detection signal, determine that the braking function of the trailer is abnormal and error-reported, or determine, in a non-braking state, that the pressure value in the second pressure detection pipeline does not satisfy the fourth pressure threshold value according to the second pipeline pressure detection signal, and determine that the braking function of the trailer is abnormal and error-reported.

Specifically, the pressure value in the corresponding pressure detection pipeline is determined according to the acquired pipeline pressure detection signal, and when the pressure value in the pressure detection pipeline is compared with the corresponding pipeline pressure threshold value, if the pressure value in the pressure detection pipeline does not meet the corresponding pipeline pressure threshold value, the braking function abnormality of the trailer is determined, the error is reported, and the maintenance is needed. That is, if the pressure value in the primary pressure detection pipeline does not meet the pressure threshold value of the corresponding pipeline in the detection process, the brake system fault is determined. For example, due to the fact that the pipeline is installed incorrectly, the pressure value in the first pressure detection pipeline is 0, when the first pressure threshold is not met in a non-braking state, 7.5bar-16bar is not met, the braking function of the trailer is considered to be abnormal and error reporting is carried out, at the moment, a detector can directly receive error reporting information, and the detector can directly intercept the detection program being executed by the driver manually and interrupt detection.

In some embodiments, fig. 5 is a block diagram of a vehicle detection system according to an embodiment of the present utility model, where, referring to fig. 5, in other embodiments, a diagnostic unit 1 may also be provided to include a display, where a braking function abnormality of a trailer may be displayed on a screen, and an error corresponding to the braking function abnormality of the trailer may be displayed on the screen, and a detection personnel may be prompted to perform maintenance in a text or light mode.

In some embodiments, fig. 4 is a block diagram of a vehicle detection system according to one embodiment of the present utility model, wherein, referring to fig. 4, the vehicle detection system 100 further comprises an alarm device 30, the alarm device 30 being connected to the trigger diagnostic device 20 for alerting when a braking malfunction of the trailer is determined. Wherein, can set up alarm device 30 and include the display, can show the information of braking function abnormality on the screen to the corresponding error of reporting of the pressure detection pipeline of braking function abnormality of trailer is shown on the screen, and the accessible characters or the form of light indicate that the inspector needs to overhaul.

In other embodiments, referring to FIG. 4, the vehicle detection system 100 further includes a diagnostic result generating device 40 and a printing device 50.

Wherein the diagnostic result generating means 40 is wirelessly connected to the diagnostic unit 1 for acquiring detection data of the braking function of the trailer and generating a diagnostic result based on the detection data of the braking function, and the printing means 50 is connected to the diagnostic result generating means 40 for receiving and printing the diagnostic result. The diagnostic result generating device 40 may be a factory IT (Information Technology information technology), which may sort out the final detection result, and the printing device 50 may be a printer or a printing apparatus.

Specifically, fig. 5 is a block diagram of a vehicle detection system according to another embodiment of the present utility model, in which the alarm device 30 is not shown, and the pipeline pressure detection signal acquisition device 10 in fig. 5 is used as a conventional trailer detection device or trailer detection equipment, the trigger diagnosis device 2 may be represented by the diagnostic apparatus PORTY, the diagnostic result generation device 40 is a factory IT, and the printing device 50 is represented by a printer as an example. The diagnosis unit 1 can be connected with a factory IT through a WiFi (WIRELESS FIDELITY, wireless network communication technology), the factory IT can sort out a final detection result, the factory IT is connected with a printer through a network cable, and the detection result can be sent to the printer and printed out by the printer. And when the diagnosis unit 1 determines that the braking function of the trailer is faulty, making an error report and transmitting the error information to the factory IT through WiFi, the factory IT can also record the error report.

A second aspect of the present utility model provides a vehicle detection apparatus, as shown in fig. 6, which is a block diagram of a vehicle detection apparatus according to another embodiment of the present utility model, wherein a vehicle detection apparatus 1000 includes a vehicle detection system 100, a processor 200, and a memory 300.

Wherein the at least one processor 200, the processor 200 and the vehicle detection system 100 are electrically connected, and the memory 300 is communicatively connected to the at least one processor 200, the memory 300 having stored therein a computer program executable by the at least one processor.

According to the vehicle detection apparatus 1000 provided by the embodiment of the present utility model, the hardware structure of the vehicle detection system 100 of the above embodiment may be directly put into use as the vehicle detection apparatus 1000, or the vehicle detection system 100 may be added to a vehicle detection apparatus 1000, so that the apparatus has a function of detecting a braking function of a trailer. When the vehicle detection device 1000 automatically performs detection of the braking function of the trailer with the assistance of the detection personnel, the processor 200 executes the computer program stored in the memory 300, so that the auxiliary vehicle detection system 100 realizes automatic detection of the braking function of the trailer, manpower and time can be saved, and the safety and reliability of the trailer can be improved through detection, the quality of the vehicle is improved, and safety accidents are avoided.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims (10)

1. A vehicle detection system, wherein the vehicle includes a tractor and a trailer, the vehicle detection system comprising:

the pipeline pressure detection signal acquisition device is connected with a pipeline interface of a pipeline for providing braking force in the tractor and is used for acquiring pipeline pressure detection signals in a non-braking state and a braking state;

The trigger diagnosis device is connected with the tractor and the pipeline pressure detection signal acquisition device and is used for sending detection trigger signals to the tractor and detecting the braking function of the trailer according to the pipeline pressure detection signals.

2. The vehicle detection system according to claim 1, wherein a first brake device, a second brake device, and a third brake device are provided in the tractor, and wherein the vehicle is in the braked state when at least one of the first brake device, the second brake device, and the third brake device is in a braked position, and wherein the vehicle is in the non-braked state when the first brake device, the second brake device, and the third brake device are all in a non-braked position.

3. The vehicle detection system of claim 2, wherein the line interface of the line for providing braking force in the tractor includes a pressure supply line interface and a brake line interface.

4. A vehicle detection system according to claim 3, wherein the line pressure detection signal acquisition means includes:

A first pressure detection line, a first end of which is connected to the pressure supply line interface;

And the first end of the second pressure detection pipeline is connected with the brake pipeline interface.

5. The vehicle detection system according to claim 4, characterized in that the trigger diagnosis means includes:

And the first end of the diagnosis unit is connected with the second end of the first pressure detection pipeline and the second end of the second pressure detection pipeline.

6. The vehicle detection system according to claim 5, characterized in that the trigger diagnosis means further comprises:

And the first end of the triggering unit is connected with the tractor and is used for sending the detection triggering signal to the tractor so as to prompt at least one of the first braking device, the second braking device and the third braking device to be arranged at the braking position.

7. The vehicle detection system of claim 6, wherein a second end of the trigger unit is connected to a second end of the diagnostic unit, the trigger unit further configured to send the detection trigger signal to the tractor to prompt the vehicle to return to the non-braked state when it is determined that the braking function of the trailer is normal in the braked state.

8. The vehicle detection system according to claim 1, characterized in that the vehicle detection system further comprises:

And the alarm device is connected with the trigger diagnosis device and is used for alarming when the braking function abnormality of the trailer is determined.

9. The vehicle detection system according to claim 5, characterized in that the vehicle detection system further comprises:

The diagnosis result generating device is connected with the diagnosis unit in a wireless way and is used for generating a diagnosis result according to the detection data of the braking function;

And the printing device is connected with the diagnosis result generating device and is used for receiving and printing the diagnosis result.

10. A vehicle detection apparatus, characterized by comprising:

The vehicle detection system according to any one of claims 1 to 9;

at least one processor electrically connected to the vehicle detection system;

And a memory communicatively coupled to the at least one processor, the memory storing a computer program executable by the at least one processor.