Trailer device based on new energy electric driving technology and control method thereof

Abstract

The invention discloses a trailer device based on a new energy electric drive technology and a control method of the trailer device. The trailer device comprises a trailer, an electric drive axle, a power battery box, a battery control system, a trailer controller, an external charger and a data acquisition module. The electric drive axle is a drive axle assembly integrating an auxiliary drive system, a motor controller, a motor, a heat dissipation system, a speed reduction device and a drive device, is installed at the axle installation position of the trailer and is used for replacing an original axle of the trailer. The system meets the requirements of various working conditions, can be flexibly combined with a stock tractor, realizes the functions of a hybrid vehicle, and realizes the purposes of reducing the energy consumption of the vehicle, reducing the serious emission of air pollutants and improving the driving safety performance at low cost.

Description

Technical Field

[0001] The present invention relates to the field of new energy trailers, and in particular to a trailer device based on new energy electric drive technology and a control method thereof. Background Art

[0002] The main mode of road transport is trailer-and-snap transport. The number of tractors will exceed 3 million in 2023, most of which are petrochemical fuel or gas vehicles, with large emissions of air pollutants, and the number will continue to grow. The corresponding number of trailers is close to 4 million, most of which are unpowered vehicles and rely entirely on tractors to drive them. The driving force of the vehicles is entirely output by the tractor's drive wheels.

[0003] In the process of realizing the present invention, it is found that the existing trailers have at least the following problems: in the heavy-load uphill condition of the vehicle, the engine needs to operate in a high-load condition in the non-economic range, which will cause higher fuel consumption and more serious air pollutant emissions; in the starting stage of the vehicle, before the vehicle engine speed reaches the economic speed and the emission post-treatment temperature, it will also cause higher fuel consumption and more serious air pollutant emissions; when the vehicle is driving in urban areas or congested roads, the speed is low, and braking and starting are frequent, resulting in higher fuel consumption and more serious air pollutant emissions; during braking, part of the kinetic energy of the trailer is converted into heat energy during mechanical friction and lost through the atmosphere. If braking is continued in mountainous terrain, it will cause a safety risk of brake failure due to overheating; if the braking force of the trailer is insufficient, it will cause the risk of vehicle skidding and vehicle folding.

[0004] In order to improve the above problems, the present invention proposes a solution for upgrading or transforming a trailer into an electric trailer device by using electric drive technology of new energy vehicles. Summary of the invention

[0005] The technical problem to be solved by the present invention is: how to solve the problem that the existing trailer causes high energy consumption of the tractor, serious emission of air pollutants, and poor braking safety performance, and provides a trailer device based on new energy electric drive technology and a control method thereof.

[0006] The present invention solves the above technical problems through the following technical solutions. The present invention comprises a trailer, an electric drive axle, a power battery box, a battery control system, a trailer controller, an external charger and a data acquisition module. The electric drive axle, the power battery box, the battery control system, the trailer controller, the external charger and the data acquisition module are all installed on the trailer; The electric drive axle is a drive axle assembly that integrates an auxiliary drive system, a motor controller, a motor, a cooling system, a reduction device, and a drive device, and is installed at the axle installation position on the trailer to replace the axle of the original vehicle; The power battery box is electrically connected to the battery control system and the electric drive axle respectively; The trailer controller is electrically connected to the circuit, battery control system and electric drive axle of the tractor respectively; The external charger is electrically connected to the battery control system, and a socket for connecting to a charging pile is reserved on the external charger; During the power replenishment process, the power from the charging pile is supplied to the power battery box through the socket on the external charger and the battery control system connected to the external charger; The data acquisition module is used to collect relevant information of the trailer device and process the relevant information to generate brake control information. The relevant information includes the downhill state, uphill state, speed information and position information of the trailer.

[0007] A method for controlling a trailer device based on new energy electric drive technology, the control method comprising the following steps: Step 1: When the vehicle is going downhill or the driver steps on the brake pedal, the trailer controller sends instructions to the electric drive axle and battery control system based on the received braking information, converting the vehicle's kinetic energy into electrical energy and storing it in the power battery box, thereby recovering kinetic energy while assisting the vehicle in braking. Step 2: During the vehicle starting phase, the trailer controller sends instructions to the electric drive axle and the battery control system based on the received braking information, so that the electric energy in the power battery box is transmitted to the electric drive axle, the trailer starts running, and the tractor is assisted in starting; Step 3: When the vehicle reaches the set economic speed, the trailer controller sends instructions to the electric drive axle and battery control system to stop the power battery box from transmitting power to the electric drive axle, the trailer stops running, and switches to the tractor engine system to drive the vehicle alone; Step 4: When the vehicle is in a heavy-loaded or uphill state, the trailer controller sends instructions to the electric drive axle and the battery control system according to the braking information, transmits the power in the power battery box to the electric drive axle, and the trailer starts running to provide the tractor with driving force to assist the vehicle to go uphill; Step 5: When the vehicle reaches the preset area, the economic speed setting can be manually increased, and the vehicle is driven mainly by the electric-drive trailer and supplemented by the tractor engine system.

[0008] Furthermore, when one of the two acceleration determination information is an uphill state and the other is a downhill state, data collection of the two acceleration sensors is performed again; When one of the two gyroscope determination information is in an uphill state and the other is in a downhill state, data collection of the two gyroscope determination information is performed again.

[0009] Furthermore, the determination process of the vehicle starting stage is as follows: the data acquisition module on the trailer device also includes a speed acquisition unit and a position acquisition unit; Processing the speed information collected by the speed collection unit to obtain speed evaluation parameters; Processing the location information acquired by the location acquisition unit to obtain location evaluation parameters; When the position evaluation parameter and the speed evaluation parameter are both greater than the preset values, it indicates that the vehicle is in the starting stage. When the position evaluation parameter and the speed evaluation parameter are other than the preset values, it indicates that the vehicle is not in the starting stage.

[0010] Furthermore, the process of obtaining the speed evaluation parameter and the position evaluation parameter is as follows: continuously collecting at least m speed information and m position information within a preset time length, extracting the average of the m speed information, and obtaining the speed evaluation parameter; The first position and the last position of the m position information are extracted, and the distance information between the first position and the last position is measured to obtain the position evaluation parameter.

[0011] Furthermore, the preset area includes an emission limit area, a noise limit area and a congested road section; The process of determining whether a vehicle has entered a preset area is as follows: the real-time location information of the vehicle is collected by a data collection module on the trailer device, and the data collection module is connected to the Internet, and the vehicle location information is imported into an Internet map in real time, and the location of the vehicle is retrieved from the Internet map to determine whether it is a preset area; When the distance between the vehicle's location and the preset area is less than a preset value a1 and greater than or equal to a preset value a2, a preset area entry prompt message is generated first; When the distance between the vehicle's location and the preset area is less than a preset value a2, a prompt is generated that the vehicle has reached the preset area, a1>a2.

[0012] Furthermore, the specific process of obtaining the data collection warning information is as follows: Collect the acceleration sensor information and gyroscope information in the data acquisition module; The acceleration sensor information includes the distance information between the two acceleration sensors, the force between the two acceleration sensors and the mounting surface, and the external force information of the accelerometer; The gyroscope information includes the distance information between the two gyroscopes, the force between the two gyroscopes and the mounting surface, and the gyroscope force information; Analyze the acceleration sensor information, and generate data collection warning information when any one of the distance information between the two acceleration sensors exceeds the preset range, the force between the two acceleration sensors and the mounting surface exceeds the preset range, or the external force information of the accelerometer is greater than the preset value; The gyroscope information is analyzed, and when any of the following occurs: the distance information between the two gyroscopes exceeds a preset range, the force magnitude between the two gyroscopes and the mounting surface exceeds a preset range, or the gyroscope force information is greater than a preset value, a data collection warning message is generated.

[0013] Furthermore, the process of collecting the acceleration sensor information is as follows: two distance measuring devices are set on the two acceleration sensors to collect the distance information between the two acceleration sensors in real time; A pressure sensing device is provided between the two acceleration sensors and the mounting surface to collect the magnitude of the force between the acceleration sensors and the mounting surface; A force sensing device is arranged outside the two acceleration sensors to collect external force information of the acceleration sensors; The gyroscope information collection process is as follows: two distance measuring devices are set on the two gyroscopes to collect the distance information between the two gyroscopes in real time; A pressure sensing device is provided between the two gyroscopes and the mounting surface to collect the magnitude of the force between the gyroscopes and the mounting surface; A force sensing device is arranged outside the two gyroscopes to collect the external force information of the gyroscopes.

[0014] Compared with the prior art, the present invention has the following advantages: the trailer device based on new energy electric drive technology and the control method thereof can assist the vehicle driving in the heavy-load uphill working condition of the vehicle, reduce the engine load, avoid the engine running in the high-load working condition in the non-economic range, reduce fuel consumption and reduce air pollutant emissions; During the vehicle start-up phase, the vehicle is mainly driven to reduce the high fuel consumption and serious air pollutant emissions caused by the engine speed not reaching the economic speed and the exhaust after-treatment temperature; When driving in urban areas or congested roads, the vehicle should be driven as the main vehicle to reduce high fuel consumption and serious air pollutant emissions caused by low speed, frequent braking and starting; When the vehicle is driving downhill continuously, it assists in braking, reducing the safety risks of overheating of the braking system and brake failure caused by continuous braking, as well as the risk of the vehicle skidding or folding due to insufficient braking force of the trailer; Effectively extend the cruising range of electric tractors.

[0015] The above beneficial effects greatly enhance the scope of application of the trailer. On the premise of retaining the existing tractor, it reduces the consumption of petrochemical fuel and improves the emission of air pollutants, making it suitable for use in various working environments. It has high social and economic benefits, making the system more worthy of promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a trailer device of the present invention. DETAILED DESCRIPTION

[0017] The following is a detailed description of an embodiment of the present invention. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiment.

[0018] like Figure 1 As shown, this embodiment provides a technical solution: a trailer device based on new energy electric drive technology, including a trailer 1, an electric drive axle 6, a power battery box 5, a battery control system 3, a trailer controller 2, an external charger 4 and a data acquisition module; The electric drive axle 6, the power battery box 5, the battery control system 3, the trailer controller 2, the external charger 4 and the data acquisition module are all installed on the trailer 1; The electric drive axle 6 is a drive axle assembly integrating an auxiliary drive system, a motor controller, a motor, a cooling system, a speed reduction (speed change) device, and a drive device, and is installed at the axle installation position on the trailer 1 to replace the axle of the original vehicle; The power battery box 5 is electrically connected to the battery control system 3 and the electric drive axle 6 respectively; The trailer controller 2 is electrically connected to the circuit of the tractor, the battery control system 3 and the electric drive axle 6 respectively; The external charger 4 is electrically connected to the battery control system 3, and a socket for connecting to a charging pile is reserved on the external charger 4; During the electric energy replenishment process, the electric energy from the charging pile is replenished to the power battery box 5 through the socket on the external charger 4 and the battery control system 3 connected to the external charger 4; The data acquisition module is used to collect relevant information of the trailer device and process the relevant information to generate brake control information. The relevant information includes the downhill state, uphill state, speed information and position information of the trailer; The trailer device can use the charging pile to recharge the power battery box 5, thereby increasing the economy of the system; The trailer device can connect multiple power battery boxes 5 in parallel to increase the pure electric driving range; The trailer device can be equipped with an electric drive axle 6 with a gearbox function to improve vehicle performance and expand applicable working conditions; At the same time, the tractor can also be deeply modified, and the original vehicle generator can be converted into a high-power motor to achieve the P0 hybrid mode, replenishing electrical energy for the power battery box 5 on the trailer 1 and providing auxiliary power to the engine.

[0019] A method for controlling a trailer device based on new energy electric drive technology, the control method comprising the following steps: Step 1: In a downhill state or when the driver steps on the brake pedal, the trailer controller 2 sends instructions to the electric drive axle 6 and the battery control system 3 according to the received braking information, converting the vehicle's kinetic energy into electrical energy and storing it in the power battery box 5, thereby recovering kinetic energy while assisting the vehicle in braking; During operation, when the trailer controller 2 receives deceleration information from the tractor, it sends instructions to the electric drive axle 6 and the battery control system 3, and the motor performs the function of reverse towing and power generation, converting the vehicle's kinetic energy into electrical energy, and storing the electrical energy in the power battery box 5 through the battery control system 3; During operation, when the trailer controller 2 receives climbing, starting or acceleration information from the tractor, it sends instructions to the electric drive axle 6 and the battery control system 3. The battery control system 3 transmits the electric energy of the power battery box 5 to the motor of the electric drive axle 6. The motor performs the auxiliary drive function and converts the electric energy into vehicle kinetic energy.

[0020] Step 2: During the vehicle starting phase, the trailer controller 2 sends instructions to the electric drive axle 6 and the battery control system 3 according to the received braking information, so that the electric energy in the power battery box 5 is transmitted to the electric drive axle 6, and the trailer 1 starts running, assisting in driving the tractor to start; Step 3: When the vehicle reaches the set economic speed, the trailer controller 2 sends a command to the electric drive axle 6 and the battery control system 3 to stop the power battery box 5 from transmitting the electric drive axle 6, the trailer 1 stops running, and switches to the tractor engine system to drive the vehicle alone; Step 4: When the vehicle is in a heavy-load operation or uphill operation, the trailer controller 2 sends instructions to the electric drive axle 6 and the battery control system 3 according to the braking information, and transmits the electric energy in the power battery box 5 to the electric drive axle 6, and the trailer 1 starts to run, providing the tractor with driving force to assist the vehicle to go uphill; Step 5: When the vehicle reaches the preset area, the economic speed setting can be manually increased, and the electric drive trailer 1 is used as the main driving force, and the tractor engine system is used as the auxiliary driving force, and the electric drive trailer 1 is used as the main driving force to drive the vehicle.

[0021] The determination process of downhill state and uphill state is as follows: The data acquisition module on the trailer device includes at least two acceleration sensors and two gyroscopes; Analyze the information collected by the two acceleration sensors and the two gyroscopes to obtain two acceleration determination information and two gyroscope determination information, wherein the acceleration determination information and the gyroscope determination information both include an uphill state and a downhill state; When both the acceleration determination information and the gyroscope determination information are determined to be in an uphill state, it means that the current state is in an uphill state; When both the two acceleration determination information and the two gyroscope determination information are determined to be in a downhill state, it means that the current state is in a downhill state.

[0022] When one of the two acceleration determination information is an uphill state and the other is a downhill state, data collection of the two acceleration sensors is performed again; When one of the two gyroscope determination information is in an uphill state and the other is in a downhill state, data collection of the two gyroscope determination information is performed again; Through the above process, the accuracy of uphill and downhill state judgment is guaranteed, thereby avoiding the erroneous generation of control information.

[0023] The determination process of the vehicle starting stage is as follows: the data acquisition module on the trailer device also includes a speed acquisition unit and a position acquisition unit; Processing the speed information collected by the speed collection unit to obtain speed evaluation parameters; Processing the location information acquired by the location acquisition unit to obtain location evaluation parameters; When the position evaluation parameter and the speed evaluation parameter are both greater than the preset values, it indicates that the vehicle is in the starting stage. When the position evaluation parameter and the speed evaluation parameter are other than the preset values, it indicates that the vehicle is not in the starting stage.

[0024] The process of obtaining the speed evaluation parameter and the position evaluation parameter is as follows: continuously collecting at least m speed information and m position information within a preset time length, extracting the average of the m speed information, and obtaining the speed evaluation parameter; Extract the first position and the last position from the m position information, measure the distance information between the first position and the last position to obtain the position evaluation parameter; m≥5.

[0025] The preset areas include emission-limited areas, noise-limited areas, and congested road sections; The process of determining whether a vehicle has entered a preset area is as follows: the real-time location information of the vehicle is collected by a data collection module on the trailer device, and the data collection module is connected to the Internet, and the vehicle location information is imported into an Internet map in real time, and the location of the vehicle is retrieved from the Internet map to determine whether it is a preset area; When the distance between the vehicle's location and the preset area is less than a preset value a1 and greater than or equal to a preset value a2, a preset area entry prompt message is generated first; When the distance between the vehicle's location and the preset area is less than a preset value a2, a prompt is generated that the vehicle has reached the preset area, a1>a2.

[0026] The specific process of obtaining the collected warning information is as follows: Collect the acceleration sensor information and gyroscope information in the data acquisition module; The acceleration sensor information includes the distance information between the two acceleration sensors, the force between the two acceleration sensors and the mounting surface, and the external force information of the accelerometer; The gyroscope information includes the distance information between the two gyroscopes, the force between the two gyroscopes and the mounting surface, and the gyroscope force information; Analyze the acceleration sensor information, and generate data collection warning information when any one of the distance information between the two acceleration sensors exceeds the preset range, the force between the two acceleration sensors and the mounting surface exceeds the preset range, or the external force information of the accelerometer is greater than the preset value; Analyze the gyroscope information, and generate data collection warning information when any of the following occurs: the distance information between the two gyroscopes exceeds a preset range, the force magnitude between the two gyroscopes and the mounting surface exceeds a preset range, or the gyroscope force information is greater than a preset value; Through the above process, the data acquisition module is monitored intelligently, so as to timely discover whether the acceleration sensor and gyroscope in the data acquisition module are displaced, loosened or collided during the driving of the trailer, resulting in inaccurate data collected by the acceleration sensor or gyroscope.

[0027] The process of collecting the acceleration sensor information is as follows: two distance measuring devices are set on the two acceleration sensors to collect the distance information between the two acceleration sensors in real time; A pressure sensing device is provided between the two acceleration sensors and the mounting surface to collect the magnitude of the force between the acceleration sensors and the mounting surface; A force sensing device is arranged outside the two acceleration sensors to collect external force information of the acceleration sensors; The gyroscope information collection process is as follows: two distance measuring devices are set on the two gyroscopes to collect the distance information between the two gyroscopes in real time; A pressure sensing device is provided between the two gyroscopes and the mounting surface to collect the magnitude of the force between the gyroscopes and the mounting surface; A force sensing device is arranged outside the two gyroscopes to collect the external force information of the gyroscopes.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0030] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A trailer device based on new energy electric drive technology, characterized in that: Including trailer, electric drive axle, power battery box, battery control system, trailer controller, external charger and data acquisition module; The electric drive axle, power battery box, battery control system, trailer controller, external charger and data acquisition module are all installed on the trailer; The electric drive axle is a drive axle assembly that integrates an auxiliary drive system, a motor controller, a motor, a cooling system, a reduction device, and a drive device, and is installed at the axle installation position on the trailer to replace the axle of the original vehicle; The power battery box is electrically connected to the battery control system and the electric drive axle respectively; The trailer controller is electrically connected to the circuit, battery control system and electric drive axle of the tractor respectively; The external charger is electrically connected to the battery control system; The data acquisition module is used to collect relevant information of the trailer device and process the relevant information to generate brake control information. The relevant information includes the downhill state, uphill state, speed information and position information of the trailer.

2. A control method for a trailer device based on new energy electric drive technology, the control method is based on the trailer device according to claim 1, characterized in that: The control method comprises the following steps: Step 1: When the vehicle is going downhill or the driver steps on the brake pedal, the trailer controller sends instructions to the electric drive axle and battery control system based on the received braking information, converting the vehicle's kinetic energy into electrical energy and storing it in the power battery box, thereby recovering kinetic energy while assisting the vehicle in braking. Step 2: During the vehicle start-up phase, the trailer controller sends instructions to the electric drive axle and the battery control system based on the received braking information, so that the electric energy in the power battery box is transmitted to the electric drive axle, the trailer starts running, and the tractor is assisted in starting; Step 3: When the vehicle reaches the set economic speed, the trailer controller sends instructions to the electric drive axle and battery control system to stop the power battery box from transmitting power to the electric drive axle, the trailer stops running, and switches to the tractor engine system to drive the vehicle alone; Step 4: When the vehicle is in a heavy-loaded or uphill state, the trailer controller sends instructions to the electric drive axle and the battery control system according to the braking information, transmits the power in the power battery box to the electric drive axle, and the trailer starts running to provide the tractor with driving force to assist the vehicle to go uphill; Step 5: When the vehicle reaches the preset area, the economic speed setting can be manually increased, and the vehicle is driven mainly by the electric-drive trailer and supplemented by the tractor engine system.

3. A trailer device control method based on new energy electric drive technology according to claim 2, characterized in that: The determination process of downhill state and uphill state is as follows: The data acquisition module on the trailer device includes at least two acceleration sensors and two gyroscopes; Analyze the information collected by the two acceleration sensors and the two gyroscopes to obtain two acceleration determination information and two gyroscope determination information, wherein the acceleration determination information and the gyroscope determination information both include an uphill state and a downhill state; When both the acceleration determination information and the gyroscope determination information are determined to be in an uphill state, it means that the current state is in an uphill state; When both the two acceleration determination information and the two gyroscope determination information are determined to be in a downhill state, it means that the current state is in a downhill state.

4. A method for controlling a trailer device based on new energy electric drive technology according to claim 3, characterized in that: When one of the two acceleration determination information is an uphill state and the other is a downhill state, data collection of the two acceleration sensors is performed again; When one of the two gyroscope determination information is in an uphill state and the other is in a downhill state, data collection of the two gyroscope determination information is performed again.

5. The method for controlling a trailer device based on new energy electric drive technology according to claim 2, characterized in that: The determination process of the vehicle starting stage is as follows: the data acquisition module on the trailer device also includes a speed acquisition unit and a position acquisition unit; Processing the speed information collected by the speed collection unit to obtain speed evaluation parameters; Processing the location information acquired by the location acquisition unit to obtain location evaluation parameters; When the position evaluation parameter and the speed evaluation parameter are both greater than the preset values, it indicates that the vehicle is in the starting stage. When the position evaluation parameter and the speed evaluation parameter are other than the preset values, it indicates that the vehicle is not in the starting stage.

6. A method for controlling a trailer device based on new energy electric drive technology according to claim 5, characterized in that: The process of obtaining the speed evaluation parameter and the position evaluation parameter is as follows: continuously collecting at least m speed information and m position information within a preset time length, extracting the average of the m speed information, and obtaining the speed evaluation parameter; The first position and the last position of the m position information are extracted, and the distance information between the first position and the last position is measured to obtain the position evaluation parameter.

7. A trailer device control method based on new energy electric drive technology according to claim 2, characterized in that: The preset areas include emission-limited areas, noise-limited areas, and congested road sections; The process of determining whether a vehicle has entered a preset area is as follows: the real-time location information of the vehicle is collected by a data collection module on the trailer device, and the data collection module is connected to the Internet, and the vehicle location information is imported into an Internet map in real time, and the location of the vehicle is retrieved from the Internet map to determine whether it is a preset area; When the distance between the vehicle's location and the preset area is less than a preset value a1 and greater than or equal to a preset value a2, a preset area entry prompt message is generated first; When the distance between the vehicle's location and the preset area is less than a preset value a2, a prompt is generated that the vehicle has reached the preset area, a1>a2.

8. The method for controlling a trailer device based on new energy electric drive technology according to claim 2, characterized in that: The control method also includes a control method for intelligently controlling the data acquisition module on the trailer device, and the control method is used to control the issuance of data acquisition warning information when an abnormality occurs in the data acquisition module.

9. A method for controlling a trailer device based on new energy electric drive technology according to claim 8, characterized in that: The specific process of obtaining the data collection warning information is as follows: Collect the acceleration sensor information and gyroscope information in the data acquisition module; The acceleration sensor information includes the distance information between the two acceleration sensors, the force between the two acceleration sensors and the mounting surface, and the external force information of the accelerometer; The gyroscope information includes the distance information between the two gyroscopes, the force between the two gyroscopes and the mounting surface, and the gyroscope force information; Analyze the acceleration sensor information, and generate data collection warning information when any one of the distance information between the two acceleration sensors exceeds the preset range, the force between the two acceleration sensors and the mounting surface exceeds the preset range, or the external force information of the accelerometer is greater than the preset value; The gyroscope information is analyzed, and when any of the following occurs: the distance information between the two gyroscopes exceeds a preset range, the force magnitude between the two gyroscopes and the mounting surface exceeds a preset range, or the gyroscope force information is greater than a preset value, a data collection warning message is generated.

10. A method for controlling a trailer device based on new energy electric drive technology according to claim 9, characterized in that: The process of collecting the acceleration sensor information is as follows: two distance measuring devices are set on the two acceleration sensors to collect the distance information between the two acceleration sensors in real time; A pressure sensing device is provided between the two acceleration sensors and the mounting surface to collect the magnitude of the force between the acceleration sensors and the mounting surface; A force sensing device is arranged outside the two acceleration sensors to collect external force information of the acceleration sensors; The gyroscope information collection process is as follows: two distance measuring devices are set on the two gyroscopes to collect the distance information between the two gyroscopes in real time; A pressure sensing device is provided between the two gyroscopes and the mounting surface to collect the magnitude of the force between the gyroscopes and the mounting surface; A force sensing device is arranged outside the two gyroscopes to collect the external force information of the gyroscopes.

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