A range extended hybrid tunnel rescue vehicle

Abstract

The application discloses a range-extending hybrid tunnel rescue vehicle, which comprises an upper vehicle assembly and a lower vehicle assembly, the upper vehicle assembly comprises a power battery system and a range extender system, the lower vehicle assembly comprises a driving motor system, and the heat dissipation structure of the range extender system and the heat dissipation structure of the driving motor system are connected through a cooling liquid pipeline group. The range-extending hybrid power system is adopted, and a corresponding heat dissipation system design method is provided, so that good heat dissipation of each element under a high-temperature environment can be realized. The problem that a traditional fuel power equipment has poor heat dissipation capacity due to the fact that more heat is generated because an engine is driven for a long time under a high-temperature disaster environment, and the heat dissipation burden is increased is solved. The range-extending hybrid tunnel rescue vehicle breaks through the limitation of single function of a single vehicle, can be loaded with various functional accessories, and improves the tunnel rescue and disposal efficiency.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery, and in particular to a range-extended hybrid tunnel rescue vehicle. Background Technology

[0002] In modern transportation infrastructure, tunnels are a crucial component. In the event of accidents such as fires, explosions, or collapses, rapid and efficient rescue equipment is essential to ensure the safety of people and minimize property damage. Tunnel rescue vehicles, as key emergency rescue equipment, have their performance directly impacting the effectiveness of rescue efforts.

[0003] Most existing tunnel rescue vehicles use traditional fuel-powered systems, which have obvious drawbacks. First, in the relatively enclosed space of a tunnel, fuel engines emit large amounts of harmful gases such as carbon monoxide and nitrogen oxides, and the accumulation of these gases can even cause secondary accidents, threatening the lives of rescuers and trapped personnel. Second, the low oxygen concentration in the tunnel disaster environment prevents fuel from burning completely, leading to reduced engine power and insufficient strength, which affects the efficiency of the rescue vehicle in quickly reaching the accident site and carrying out rescue operations. It can also easily cause engine failure, hindering rescue operations. Finally, traditional fuel engines already operate at relatively high temperatures under normal conditions. In the high-temperature disaster environment after a tunnel accident, the engine's heat dissipation problem becomes even more severe. The cooling systems of traditional rescue vehicles cannot withstand such extreme conditions, and the heat exchange efficiency of ordinary cooling systems is significantly reduced at high temperatures.

[0004] Therefore, there is a need to provide a range-extended hybrid tunnel rescue vehicle to solve the problem that traditional fuel-powered equipment generates more heat due to the engine's prolonged involvement in driving under high-temperature disaster conditions, resulting in poor heat dissipation capacity. Summary of the Invention

[0005] The purpose of this invention is to provide a range-extended hybrid tunnel rescue vehicle, which adopts a range-extended hybrid power system and proposes a corresponding heat dissipation system design method to achieve good heat dissipation of various components under high temperature environments.

[0006] To solve the above-mentioned technical problems, the present invention provides a range-extended hybrid tunnel rescue vehicle, including an upper vehicle assembly and an lower vehicle assembly. The upper vehicle assembly includes a power battery system and a range extender system, and the lower vehicle assembly includes a drive motor system. The heat dissipation structure of the range extender system and the heat dissipation structure of the drive motor system are connected by a coolant pipeline group.

[0007] Preferably, the power battery system includes a battery thermal management unit, a battery expansion tank, and multiple battery packs stacked sequentially. Each battery pack is connected to a cooling structure, and the battery thermal management unit, the battery expansion tank, and the cooling structure are connected by pipelines.

[0008] Preferably, multiple cooling structures are respectively disposed below the corresponding battery packs, and the multiple cooling structures are connected in series via U-shaped silicone tubes. The lowest cooling structure is connected to the inlet pipe of the thermal management unit via a Z-shaped silicone tube and a water collection pipe located below, and the highest cooling structure is connected to the outlet pipe of the thermal management unit via a Z-shaped silicone tube and a water collection pipe located above. The battery expansion tank is connected to the water collection pipe located above via a water supply pipe of the thermal management unit.

[0009] Preferably, the drive motor system includes a drive motor, an all-in-one controller, and a motor control heat sink.

[0010] Preferably, the range extender system includes an engine body, an integrated starter-drive generator mounted at the front end of the engine body, and an engine cooling system mounted at the rear end of the engine body.

[0011] Preferably, it also includes a range extender generator controller, an auxiliary water tank, and a water pump, wherein the water pump and the motor electronic control radiator are connected to the multi-function controller, the drive motor, the range extender generator controller, and the integrated starter drive generator via pipelines.

[0012] Preferably, the outlet of the water pump is connected to the inlet of the range extender generator controller and the inlet of the multi-function controller, the outlet of the range extender generator controller is connected to the inlet of the integrated starter-drive generator, the outlet of the multi-function controller is connected to the inlet of the drive motor, the outlet of the integrated starter-drive generator and the outlet of the drive motor are simultaneously connected to the inlet of the motor control radiator, the outlet of the motor control radiator is connected to the inlet of the water pump, and the auxiliary water tank is connected to the water pump and the water supply inlet of the motor control radiator.

[0013] Preferably, a first control valve is provided at the outlet of the water pump, a second control valve is provided at the inlet of the multi-function controller, and a third control valve is provided at the inlet of the motor control radiator.

[0014] Preferably, the power battery system and the range extender system are located on both sides of the rear end of the upper vehicle assembly, and the drive motor system is located on one side of the middle of the lower vehicle assembly.

[0015] Preferably, multiple cameras are installed around the lower vehicle assembly, a radio is installed above the driver's cab, and the vehicle controller is equipped with a remote control module.

[0016] This invention provides a range-extended hybrid tunnel rescue vehicle, comprising an upper assembly and a lower assembly. The upper assembly includes a power battery system and a range extender system, while the lower assembly includes a drive motor system. The cooling structures of the range extender system and the drive motor system are connected via a coolant piping system. Employing a range-extended hybrid system and proposing a corresponding cooling system design method, this invention achieves excellent heat dissipation for all components under high-temperature environments. It solves the problem of traditional fuel-powered equipment generating more heat due to prolonged engine operation in high-temperature disaster environments, leading to increased cooling burden and poor equipment cooling capacity. Furthermore, it overcomes the limitations of a single-function vehicle, allowing it to carry multiple functional attachments and improving the efficiency of tunnel rescue operations. Attached Figure Description

[0017] Figure 1 A schematic diagram of the external structure of a specific embodiment of the range-extended hybrid tunnel rescue vehicle provided by the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of a specific embodiment of the range-extended hybrid tunnel rescue vehicle provided by the present invention.

[0019] Figure 3 This is a schematic diagram of the internal structure of another specific embodiment of the range-extended hybrid tunnel rescue vehicle provided by the present invention.

[0020] Figure 4 This is a schematic diagram of the power battery system in a specific embodiment of the range-extended hybrid tunnel rescue vehicle provided by the present invention.

[0021] Figure 5 A flow chart of the heat dissipation process of the power battery system in a specific embodiment of the range-extended hybrid tunnel rescue vehicle provided by the present invention;

[0022] Figure 6 This is a schematic diagram of the drive motor system in a specific embodiment of the range-extended hybrid tunnel rescue vehicle provided by the present invention.

[0023] Figure 7 This is a schematic diagram of the range extender system in a specific embodiment of the range-extended hybrid tunnel rescue vehicle provided by the present invention.

[0024] Figure 8 This is a schematic diagram of the motor cooling structure in a specific embodiment of the range-extended hybrid tunnel rescue vehicle provided by the present invention.

[0025] Figure 9 This is a flowchart illustrating the heat dissipation process of the motor cooling structure in a specific embodiment of the range-extended hybrid tunnel rescue vehicle provided by the present invention.

[0026] The components are as follows: 1-Upper vehicle assembly; 2-Rear telescopic outrigger; 3-Lower vehicle assembly; 4-Camera; 5-Front telescopic outrigger; 6-Automatic quick-change device; 7-Telescopic robotic arm; 8-Cab; 9-Radio; 10-Cooler piping assembly; 11-Power battery system; 12-Drive motor system; 13-Range extender system; 14-Battery thermal management unit; 15-Thermal management unit outlet pipe; 16-Battery expansion tank; 17-Thermal management unit water supply pipe; 18-U-shaped silicone hose; 19-Thermal management unit inlet pipe; 20-Water collection pipe; 21-Z-shaped silicone hose; 22-Battery pack; 23-Motor and electronic control radiator; 24-All-in-one controller; 2 5-Drive motor; 26-Integrated starter drive generator; 27-Engine body; 28-Fan motor; 29-Water jacket radiator; 30-Intercooler radiator; 31-Intercooler intake pipe; 32-Water jacket radiator inlet pipe; 33-Engine intake pipe; 34-Engine degassing pipe; 35-Engine expansion tank; 36-Range extender generator controller; 37-Starter motor inlet pipe; 38-Range extender control inlet pipe; 39-Auxiliary water tank; 40-Radiator outlet pipe; 41-Water pump; 42-Radiator degassing pipe; 43-Radiator water supply pipe; 44-Drive motor inlet pipe; 45-Radiator inlet pipe; 46-Starter motor outlet pipe. Detailed Implementation

[0027] The core of this invention is to provide a range-extended hybrid tunnel rescue vehicle, which adopts a range-extended hybrid power system and proposes a corresponding heat dissipation system design method, which can achieve good heat dissipation of various components under high temperature environment.

[0028] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Please refer to Figures 1 to 3 , Figure 1 A schematic diagram of the external structure of a specific embodiment of the range-extended hybrid tunnel rescue vehicle provided by the present invention; Figure 2 This is a schematic diagram of the internal structure of a specific embodiment of the range-extended hybrid tunnel rescue vehicle provided by the present invention. Figure 3 This is a schematic diagram of the internal structure of another specific embodiment of the range-extended hybrid tunnel rescue vehicle provided by the present invention.

[0030] This invention provides a range-extended hybrid tunnel rescue vehicle, comprising an upper assembly 1 and an lower assembly 3. The lower assembly 3 is equipped with wheels, rear telescopic outriggers 2, and front telescopic outriggers 5. The upper assembly 1 is mounted above the lower assembly 3 and includes a driver's cab 8 and a telescopic robotic arm 7. An automatic quick-change device 6 is provided at the front end of the telescopic robotic arm 7. The upper assembly 1 includes a power battery system 11 and a range extender system 13, while the lower assembly 3 includes a drive motor system 12. The power battery system 11 stores and provides power for the entire vehicle. The range extender system 13 is equipped with an engine to extend the range, and the drive motor system 12 provides electric power for the entire vehicle. Each system has an independently controlled cooling structure, and the cooling structures of the range extender system 13 and the drive motor system 12 are connected by a coolant piping assembly 10.

[0031] A range-extended hybrid power system is adopted, and a corresponding cooling system design method is proposed, which can achieve good heat dissipation of various components in high-temperature environments. This solves the problem of traditional fuel-powered equipment generating more heat due to prolonged engine operation in high-temperature disaster environments, increasing the cooling burden and resulting in poor equipment cooling capacity. Breaking through the limitations of a single vehicle and single function, it can be equipped with multiple functional attachments, improving the efficiency of tunnel rescue and disposal.

[0032] Please refer to Figure 4 and Figure 5 , Figure 4 This is a schematic diagram of the power battery system in a specific embodiment of the range-extended hybrid tunnel rescue vehicle provided by the present invention. Figure 5 This is a flowchart illustrating the heat dissipation process of the power battery system in a specific embodiment of the range-extended hybrid tunnel rescue vehicle provided by the present invention.

[0033] In the range-extended hybrid tunnel rescue vehicle provided in the specific embodiment of the present invention, the power battery system 11 includes a battery thermal management unit 14, a battery expansion tank 16, and multiple battery packs 22 stacked in sequence. Each battery pack 22 is connected to a cooling structure. The battery thermal management unit 14 delivers coolant for internal circulation within the multiple cooling structures to cool the battery packs 22. The battery expansion tank 16 ensures the stability and safety of the system and can replenish the cooling system. The battery thermal management unit 14, the battery expansion tank 16, and the cooling structures are connected by pipelines.

[0034] Specifically, multiple cooling structures are respectively located below the corresponding battery pack 22. The battery thermal management unit 14 is equipped with a thermal management unit inlet pipe 19 and a thermal management unit outlet pipe 15. The multiple cooling structures are connected in series via U-shaped silicone tubes 18. The lowest cooling structure is connected to the thermal management unit inlet pipe 19 via a lower Z-shaped silicone tube 21 and a water collection pipe 20. The highest cooling structure is connected to the thermal management unit outlet pipe 15 via an upper Z-shaped silicone tube 21 and a water collection pipe 20. The battery expansion tank 16 is connected to the upper water collection pipe 20 via a thermal management unit water replenishment pipe 17. During operation, the battery thermal management unit 14 outputs coolant, which enters the cooling structures below the battery pack 22 through the thermal management unit outlet pipe 15. After passing through the sequentially connected cooling structures, the coolant flows back to the battery thermal management unit 14 via the thermal management unit inlet pipe 19 and replenishes the heat dissipation system through the battery expansion tank 16 and the thermal management unit water replenishment pipe 17. Four battery packs 22 can be set up, and the battery thermal management unit 14 is connected in series with the four battery packs 22 in a cycle, which can provide 140.95kWh of rated storage energy, ensuring that the invention can travel at an average speed of 12.5km / h and has a comprehensive pure point working time of more than 2 hours.

[0035] Please refer to Figures 6 to 9 , Figure 6 This is a schematic diagram of the drive motor system in a specific embodiment of the range-extended hybrid tunnel rescue vehicle provided by the present invention. Figure 7 This is a schematic diagram of the range extender system in a specific embodiment of the range-extended hybrid tunnel rescue vehicle provided by the present invention. Figure 8 This is a schematic diagram of the motor cooling structure in a specific embodiment of the range-extended hybrid tunnel rescue vehicle provided by the present invention. Figure 9 This is a flowchart illustrating the heat dissipation process of the motor cooling structure in a specific embodiment of the range-extended hybrid tunnel rescue vehicle provided by the present invention.

[0036] In the range-extended hybrid tunnel rescue vehicle provided in a specific embodiment of the present invention, the drive motor system 12 includes a drive motor 25, a multi-function controller 24, and a motor electronic control radiator 23. The range extender system 13 includes an engine body 27, an integrated starter-drive generator 26 mounted at the front end of the engine body 27, and an engine cooling system mounted at the rear end of the engine body 27. The integrated starter-drive generator 26 is equipped with a range extender generator controller 36 connected to it.

[0037] Specifically, the engine cooling system includes a fan motor 28, a water jacket radiator 29, an intercooler radiator 30, and an engine expansion tank 35. The engine expansion tank 35 is connected to an engine vent pipe 34, the engine body 27 is connected to an engine intake pipe 33, the water jacket radiator 29 is connected to a water jacket radiator inlet pipe 32, and the intercooler radiator 30 is connected to an intercooler intake pipe 31.

[0038] To achieve heat dissipation for the drive motor system 12 and the range extender system 13, they share a common heat dissipation system, which also includes an auxiliary water tank 39 and a water pump 41. The water pump 41 and the motor control radiator 23 are connected to the multi-function controller 24, the drive motor 25, the range extender generator controller 36 and the integrated starter drive generator 26 through pipelines.

[0039] Specifically, the outlet of water pump 41 is connected to the inlet of range extender generator controller 36 and the inlet of multi-function controller 24, respectively. The outlet of range extender generator controller 36 is connected to the inlet of integrated starter-drive generator 26. The outlet of multi-function controller 24 is connected to the inlet of drive motor 25. The outlets of integrated starter-drive generator 26 and drive motor 25 are simultaneously connected to the inlet of motor control radiator 23. The outlet of motor control radiator 23 is connected to the inlet of water pump 41. Auxiliary water tank 39 is connected to the water inlet of water pump 41 and motor control radiator 23. It is equipped with pipes such as starter motor inlet pipe 37, range extender controller inlet pipe 38, radiator outlet pipe 40, radiator degassing pipe 42, radiator water supply pipe 43, drive motor inlet pipe 44, radiator inlet pipe 45, and starter motor outlet pipe to connect the various components.

[0040] The coolant output from water pump 41 is divided into two parallel paths. Path one consists of a series-connected range extender generator controller and an integrated starter-drive generator 26. Path two consists of a series-connected multi-function controller 24 and a drive motor 25. The two paths are combined and flow to the motor-controlled radiator 23 for cooling before the coolant flows to water pump 41. Coolant is also replenished through the auxiliary water tank 39. For ease of control and maintenance, a first control valve is installed at the outlet of water pump 41, and a third control valve is installed at the inlet of the motor-controlled radiator 23.

[0041] Furthermore, branch line one is positioned higher than the motor control radiator 23 and the water pump 4141. The range extender generator controller 36 has a rated heat output of 2.1kW and a peak heat output of 3.54kW, requiring a water flow rate of 18L / min. The integrated starter-drive generator 26 has a rated heat output of 4.92kW and a peak heat output of 9.12kW, requiring a water flow rate of 25L / min. The multi-function controller 24 has a peak heat output of 0.26kW. The drive motor 25 has a rated heat output of 6kW, requiring a water flow rate of 16L / min. Clearly, branch line one requires a larger water flow rate and greater heat dissipation. Under the same pressure differential, by adding a second control valve before the multi-function controller 24 in branch line two to control the coolant flow rate of branch line two, the coolant flow rate of branch line one, which is located at a higher position and has greater heat dissipation requirements, can be guaranteed. The control valve can be an electrically controlled ball valve or other types of valves, all of which are within the scope of protection of this invention.

[0042] When the opening of the second control valve changes, the overlapping area between the through-hole on the ball and the pipe changes. The smaller the opening, the smaller the flow area and the greater the flow resistance. Furthermore, when the opening of the second control valve decreases, the inner diameter of the pipe changes, causing more turbulence and eddies to be generated as the fluid passes through the ball valve, further increasing flow resistance. All of these factors contribute to the flow restriction in branch two. The addition of the first and third control valves facilitates maintenance, enables precise water flow cutoff, and prevents coolant backflow during maintenance.

[0043] By using ball valves to control the flow rate of sub-water circuits, precise flow regulation can be achieved, flow distribution can be balanced, and local overheating or insufficient cooling can be avoided. At the same time, the maintenance cost is low and the maintenance difficulty is low. It can be flexibly integrated into existing pipelines, supports independent control of multiple sub-water circuits, facilitates subsequent system expansion or modification, and can be linked with electric or pneumatic actuators to achieve automatic flow regulation and improve the system's intelligence level.

[0044] Based on the range-extended hybrid tunnel rescue vehicle provided in the above specific embodiments, the power battery system 11 and the range extender system 13 are located on both sides of the rear end of the upper vehicle assembly 1, and the drive motor system 12 is located on one side of the middle of the lower vehicle assembly 3, or the layout of each component can be adjusted according to the situation.

[0045] Multiple cameras are installed around the lower assembly 3, and a radio 9 is installed above the driver's cab 8. The vehicle controller is equipped with a remote control module. A low-latency, high-reliability remote control technology is proposed, enabling remote control at a distance of 2700m with an image latency of 147ms, achieving intelligent unmanned control and improving overall vehicle safety.

[0046] The above provides a detailed description of the range-extended hybrid tunnel rescue vehicle provided by this invention. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A range-extended hybrid tunnel rescue vehicle, characterized in that, It includes an upper vehicle assembly (1) and an lower vehicle assembly (3). The upper vehicle assembly (1) includes a power battery system (11) and a range extender system (13). The lower vehicle assembly (3) includes a drive motor system (12). The heat dissipation structure of the range extender system (13) and the heat dissipation structure of the drive motor system (12) are connected by a coolant pipeline group (10). The drive motor system (12) includes a drive motor (25), an all-in-one controller (24), and a motor control heat sink (23). The range extender system (13) includes an engine body (27), an integrated starter drive generator (26) installed at the front end of the engine body (27), and an engine cooling system installed at the rear end of the engine body (27). It also includes a range extender generator controller (36), an auxiliary water tank (39) and a water pump (41), wherein the water pump (41) and the motor control radiator (23) are connected to the multi-in-one controller (24), the drive motor (25), the range extender generator controller (36) and the integrated starter drive generator (26) through pipelines. The outlet of the water pump (41) is connected to the inlet of the range extender generator controller (36) and the inlet of the multi-function controller (24), respectively. The outlet of the range extender generator controller is connected to the inlet of the integrated starter drive generator (26). The outlet of the multi-function controller (24) is connected to the inlet of the drive motor (25). The outlets of the integrated starter drive generator (26) and the drive motor (25) are simultaneously connected to the inlet of the motor control radiator (23). The outlet of the motor control radiator (23) is connected to the inlet of the water pump (41). The auxiliary water tank (39) is connected to the water pump (41) and the water supply inlet of the motor control radiator (23).

2. The range-extended hybrid tunnel rescue vehicle according to claim 1, characterized in that, The power battery system (11) includes a battery thermal management unit (14), a battery expansion tank (16), and multiple battery packs (22) stacked in sequence. Each battery pack (22) is connected to a cooling structure. The battery thermal management unit (14), the battery expansion tank (16), and the cooling structure are connected by pipelines.

3. The range-extended hybrid tunnel rescue vehicle according to claim 2, characterized in that, Multiple cooling structures are respectively disposed below the corresponding battery pack (22). Multiple cooling structures are connected in series via U-shaped silicone tubes (18). The lowest cooling structure is connected to the inlet pipe (19) of the thermal management unit via the Z-shaped silicone tube (21) and the water collection pipe (20) located below. The highest cooling structure is connected to the outlet pipe (15) of the thermal management unit via the Z-shaped silicone tube (21) and the water collection pipe (20) located above. The battery expansion tank (16) is connected to the water collection pipe (20) located above via the water replenishment pipe (17) of the thermal management unit.

4. The range-extended hybrid tunnel rescue vehicle according to claim 1, characterized in that, The water pump (41) is provided with a first control valve at its outlet, the multi-function controller (24) is provided with a second control valve at its inlet, and the motor control radiator (23) is provided with a third control valve at its inlet.

5. The range-extended hybrid tunnel rescue vehicle according to any one of claims 1 to 4, characterized in that, The power battery system (11) and the range extender system (13) are located on both sides of the rear end of the upper vehicle assembly (1), and the drive motor system (12) is located on one side of the middle of the lower vehicle assembly (3).

6. The range-extended hybrid tunnel rescue vehicle according to claim 5, characterized in that, The lower vehicle assembly (3) is equipped with multiple cameras (4) around its perimeter, a radio (9) is installed above the driver's cab (8), and the vehicle controller is equipped with a remote control module.

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