A pure electric self-unloading heavy truck box-by-wire device

Abstract

The utility model discloses a kind of pure electric self-unloading heavy truck box wire control device, including wire control device main body, the surface of wire control device main body is respectively provided with first wire control control system and second wire control control system.The utility model is sent to box controller by CAN message form, controller is converted into hard-wire signal, the lifting and lowering of control box, the closing and opening of tarpaulin, and real-time box and tarpaulin state are fed back to unmanned system, ensure that box is controlled and state feedback, solved in unmanned mode traditional box cannot respond wire control control demand, this system can monitor box state in real time, real-time response the lifting and lowering of box, the opening and closing structure design of tarpaulin is simple, and operation mode is convenient, and safety reliability is high.

Description

Technical Field

[0001] This utility model relates to the field of cargo box wire control technology, specifically a wire control device for a pure electric self-unloading heavy truck cargo box. Background Technology

[0002] Entering the 21st century, with continuous technological advancements and increasing international market demand, the automotive industry has entered a phase of rapid development. With the rapid advancement of technology and the continuous expansion of the logistics industry, the application of autonomous driving technology in the trucking sector is gradually becoming possible. The traditional transportation industry faces problems such as high labor costs, safety hazards caused by driver fatigue, and low transportation efficiency. The emergence of autonomous trucks promises to solve these problems and improve the safety, efficiency, and economy of logistics transportation.

[0003] In recent years, with the introduction of the "dual carbon" target, China's new energy vehicle industry has ushered in new development opportunities. The government has continuously increased policy support for new energy vehicles, promoting their development towards intelligence and connectivity. Simultaneously, the construction of charging infrastructure has accelerated, significantly improving the convenience of using new energy vehicles. Under the guidance of government policies, China's new energy vehicle industry has experienced the entire process from its initial stage to rapid development. In the future, with continuous technological breakthroughs and further market maturity, China's new energy vehicle industry will continue to maintain strong growth momentum. In many closed scenarios, such as steel mills, power plants, mining areas, ports, and short-distance transportation, unmanned battery-swapping heavy-duty trucks have demonstrated economic advantages far exceeding those of diesel heavy-duty trucks due to their low cost and rapid refueling capabilities. Against this backdrop, a new, fast, safe, and reliable drive-by-wire control system for the cargo box of pure electric self-unloading heavy-duty trucks needs to be designed to solve the problems of automatic lifting and lowering of the cargo box and automatic opening and closing of the tarpaulin during unmanned driving. Utility Model Content

[0004] The purpose of this utility model is to provide a wired control device for the cargo box of a pure electric self-unloading heavy truck to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wired control device for the cargo box of a pure electric self-unloading heavy truck, comprising a main body of the wired control device, wherein a first wired control system and a second wired control system are respectively arranged on the surface of the main body of the wired control device. The first wired control system is internally provided with a cargo box descent circuit, a lock hook opening circuit, a cargo box lifting circuit, a tarpaulin opening circuit, a tarpaulin closing circuit, an electric horn circuit, a low beam headlight circuit, and a lock hook closing circuit. The second wired control system is internally provided with a lock hook closed circuit, a tarpaulin open circuit, a tarpaulin closed circuit, a lock hook open circuit, a CA bus, and a power supply circuit.

[0006] Preferably, the first drive-by-wire control system is further provided with a high beam circuit, and a reversing light circuit is provided on one side of the high beam circuit.

[0007] Preferably, a left turn signal circuit is provided on one side of the reversing light circuit, a right turn signal circuit is provided on one side of the left turn signal circuit, and a hazard light circuit is provided on one side of the right turn signal circuit.

[0008] Preferably, a liquid level indicator light circuit is provided on one side of the double flashing light circuit.

[0009] Preferably, the second wire control system is further provided with a cargo box lowering line, and a cargo box opening line is provided on one side of the cargo box lowering line.

[0010] Preferably, a brake light circuit is provided on one side of the cargo box opening line.

[0011] Preferably, a water spray switch circuit is provided on one side of the brake light circuit.

[0012] Preferably, a position light circuit is provided on one side of the water sprinkler switch circuit.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In autonomous driving mode, after the drive-by-wire control system connects to the vehicle via the CA bus, it connects to the power supply and then activates the control switches for the solenoid valves to lower and raise the cargo box. Driven by a pneumatic source, this raises and lowers the cargo box. Simultaneously, it activates the control switches for the solenoid valves to open and close the tarpaulin, using power to open and close the tarpaulin. After the cargo box assembly completes its commands, during vehicle operation, the locking hook closed and open circuits continuously monitor the cargo box's position and feed the data back to the drive-by-wire controller, ensuring vehicle safety. This technical solution innovatively introduces an electrified drive-by-wire system on top of the traditional mechanical control architecture, meeting the compatibility requirements of autonomous driving. Specifically, CAN messages transmitted via the CA bus can directly control the cargo box lifting device, significantly improving operational convenience. Furthermore, during cargo box lifting, the system monitors the cargo box status in real time through sensors such as the locking hook closed and open circuits, greatly enhancing the safety of the lifting operation. This patented solution is specifically designed for unmanned new energy pure electric dump trucks, effectively solving the technical pain point that traditional cargo boxes cannot respond to drive-by-wire commands in unmanned driving scenarios. The system can not only monitor the cargo box position, lifting / lowering status, and tarpaulin opening / closing status in real time, but also achieve millisecond-level command response through the CA bus, providing a complete closed-loop control solution for cargo box operations in unmanned driving scenarios. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is an enlarged structural schematic diagram of the first wire control system of this utility model;

[0017] Figure 3 This is a schematic diagram of the second wire control system structure of this utility model;

[0018] Figure 4 This is the interface definition diagram of the first wire control system of this utility model;

[0019] Figure 5 This is the interface definition diagram for the second wire control system of this utility model.

[0020] In the diagram: 1. Main body of the drive-by-wire device; 2. First drive-by-wire control system; 201. Cargo box lowering circuit; 202. Lock hook opening circuit; 203. Cargo box lifting circuit; 204. Tarpaulin opening circuit; 205. Tarpaulin closing circuit; 206. Electric horn circuit; 207. Low beam headlight circuit; 208. Lock hook closing circuit; 209. High beam headlight circuit; 210. Reversing light circuit; 211. Left turn signal circuit; 212. Right turn signal circuit; 21 3. Double flashing light circuit; 214. Liquid level indicator light circuit; 3. Second wire control system; 301. Lock hook closed circuit; 302. Tarpaulin open circuit; 303. Tarpaulin closed circuit; 304. Lock hook open circuit; 305. CA bus; 306. Power supply circuit; 307. Cargo box lowered circuit; 308. Cargo box open circuit; 309. Brake light circuit; 310. Water sprayer switch circuit; 311. Position light circuit. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of this utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figure 1-5 This utility model provides an embodiment of a wired control device for the cargo box of a pure electric self-unloading heavy truck, comprising a main body 1 of the wired control device. The surface of the main body 1 is respectively provided with a first wired control system 2 and a second wired control system 3. The first wired control system 2 is internally provided with a cargo box lowering line 201, a lock hook opening line 202, a cargo box lifting line 203, a tarpaulin opening line 204, a tarpaulin closing line 205, an electric horn line 206, a low beam headlight line 207, and a lock hook closing line 208. The second wired control system 3 is internally provided with a lock hook closed line 301, a tarpaulin open line 302, a tarpaulin closed line 303, a lock hook open line 304, a CA bus 305, and a power supply line 306.

[0024] Specifically, in autonomous driving mode, after the drive-by-wire control system connects to the vehicle via the CA bus 305, it connects to the power supply line 306, and then activates the control switches of the solenoid valves: cargo box lowering line 201 and cargo box lifting line 203. Driven by the air supply, the cargo box is raised and lowered. Simultaneously, the control switches of the solenoid valves are activated: tarpaulin opening line 204 and tarpaulin closing line 205, using power to open and close the tarpaulin. After the cargo box assembly completes its commands, during vehicle operation, the locking hook closed line 301 and locking hook open line 304 continuously monitor the cargo box's position in real time and feed the data back to the drive-by-wire controller, thereby ensuring vehicle operation safety.

[0025] This technical solution innovatively introduces an electrified drive-by-wire system on the basis of the traditional mechanical control architecture to meet the compatibility requirements of autonomous driving;

[0026] Specifically, CAN messages transmitted via the CA bus 305 can directly control the cargo box lifting device, significantly improving operational convenience. Simultaneously, during cargo box lifting, the system monitors the cargo box status in real time through sensor lines such as the locking hook closed position line 301 and the locking hook open position line 304, greatly enhancing the safety of the lifting operation. This patented solution is specifically designed for unmanned new energy pure electric self-unloading heavy trucks, effectively solving the technical pain point of traditional cargo boxes being unable to respond to drive-by-wire commands in unmanned driving scenarios.

[0027] The first drive-by-wire control system 2 is also equipped with a high beam circuit 209, and a reversing light circuit 210 is provided on one side of the high beam circuit 209; a left turn signal circuit 211 is provided on one side of the reversing light circuit 210, a right turn signal circuit 212 is provided on one side of the left turn signal circuit 211, and a hazard light circuit 213 is provided on one side of the right turn signal circuit 212.

[0028] A liquid level indicator light line 214 is provided on one side of the double flashing light line 213; the second wire control system 3 is also provided with a cargo box lowering line 307, and a cargo box opening line 308 is provided on one side of the cargo box lowering line 307.

[0029] A brake light circuit 309 is installed on one side of the cargo box opening position circuit 308; a water sprayer switch circuit 310 is installed on one side of the brake light circuit 309; and a position light circuit 311 is installed on one side of the water sprayer switch circuit 310.

[0030] The following circuits are connected: Cargo box lowering circuit 201, Lock hook opening circuit 202, Cargo box lifting circuit 203, Tarpaulin opening circuit 204, Tarpaulin closing circuit 205, Electric horn circuit 206, Low beam headlight circuit 207, Lock hook closing circuit 208, High beam headlight circuit 209, Reversing light circuit 210, Brake light circuit 309, Water spray switch circuit 310, and Position light circuit 311. The signal line output is high level (24V).

[0031] The signal lines for the left turn signal circuit 211, right turn signal circuit 212, hazard light circuit 213, and the signal line output are all at a low level (0V).

[0032] The system can not only monitor the cargo box position, lifting / lowering status and tarpaulin opening and closing status in real time, but also achieve millisecond-level command response through CA bus 305, providing a complete closed-loop control solution for cargo box operations in unmanned driving scenarios.

[0033] In this embodiment, during use: First, in autonomous driving mode, the drive-by-wire control system connects to the vehicle via CA bus 305, then power line 306 is activated. This activates the control switches for the solenoid valves, namely the cargo box lowering line 201 and the cargo box lifting line 203, enabling the cargo box to be raised and lowered under pneumatic drive. Simultaneously, the control switches for the solenoid valves are activated, namely the tarpaulin opening line 204 and the tarpaulin closing line 205, enabling the tarpaulin to be opened and closed via power drive. After the cargo box assembly completes its commands, during vehicle operation, the locking hook closed line 301 and the locking hook open line 304 continuously monitor the cargo box's position in real time and feed the data back to the drive-by-wire controller, thereby ensuring vehicle safety. This technical solution innovatively introduces an electrified drive-by-wire system based on the traditional mechanical control architecture, achieving compatibility with autonomous driving requirements. Specifically, CAN messages transmitted via the CA bus 305 can directly control the cargo box lifting device, significantly improving operational convenience. Simultaneously, during cargo box lifting, the system monitors the cargo box status in real time through sensor lines such as the locking hook closed position line 301 and the locking hook open position line 304, greatly enhancing the safety of the lifting operation. This patented solution is specifically designed for unmanned new energy pure electric dump trucks, effectively solving the technical pain point of traditional cargo boxes being unable to respond to drive-by-wire commands in unmanned driving scenarios. The system can not only monitor the cargo box position, lifting / lowering status, and tarpaulin opening / closing status in real time, but also achieve millisecond-level command response via the CA bus 305, providing a complete closed-loop control solution for cargo box operations in unmanned driving scenarios.

[0034] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

Claims

1. A wired control device for the cargo box of a pure electric self-unloading heavy truck, comprising a main body (1) of the wired control device, characterized in that, The surface of the main body (1) of the wire control device is respectively provided with a first wire control system (2) and a second wire control system (3). The first wire control system (2) is provided with a cargo box lowering line (201), a lock hook opening line (202), a cargo box lifting line (203), a tarpaulin opening line (204), a tarpaulin closing line (205), an electric horn line (206), a low beam headlight line (207), and a lock hook closing line (208). The second wire control system (3) is provided with a lock hook closed line (301), a tarpaulin open line (302), a tarpaulin closed line (303), a lock hook open line (304), a CA bus (305), and a power supply line (306).

2. The wired control device for the cargo box of a pure electric self-unloading heavy truck according to claim 1, characterized in that: The first drive-by-wire control system (2) is also equipped with a high beam lamp line (209), and a reversing lamp line (210) is provided on one side of the high beam lamp line (209).

3. The wired control device for the cargo box of a pure electric self-unloading heavy truck according to claim 2, characterized in that: A left turn signal line (211) is provided on one side of the reversing light line (210), and a right turn signal line (212) is provided on one side of the left turn signal line (211), and a hazard light line (213) is provided on one side of the right turn signal line (212).

4. The wired control device for the cargo box of a pure electric self-unloading heavy truck according to claim 3, characterized in that: A liquid level indicator light line (214) is provided on one side of the double flashing light line (213).

5. The wired control device for the cargo box of a pure electric self-unloading heavy truck according to claim 1, characterized in that: The second wire control system (3) is also equipped with a cargo box lowering line (307), and a cargo box opening line (308) is provided on one side of the cargo box lowering line (307).

6. The wired control device for the cargo box of a pure electric self-unloading heavy truck according to claim 5, characterized in that: A brake light circuit (309) is provided on one side of the cargo box opening position circuit (308).

7. The wired control device for the cargo box of a pure electric self-unloading heavy truck according to claim 6, characterized in that: A water sprayer switch circuit (310) is provided on one side of the brake light circuit (309).

8. The wired control device for the cargo box of a pure electric self-unloading heavy truck according to claim 7, characterized in that: A position light circuit (311) is provided on one side of the water sprinkler switch circuit (310).

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