Sightseeing bus

Abstract

The utility model discloses a sightseeing vehicle, and belongs to the technical field of vehicles. The sightseeing vehicle comprises a traction carriage and at least one subordinate carriage; the traction carriage comprises a first wheel, a steering wheel and a first control unit, and the first control unit is configured to generate a steering control signal based on the steering operation of the steering wheel and send the steering control signal to each subordinate carriage; each subordinate compartment comprises a second wheel, a steering motor and a second control unit, and the second control unit receives the steering control signal and controls deflection of the second wheel through the steering motor based on the steering control signal so as to adjust the steering control mode of the sightseeing vehicle and enable the steering control mode to adapt to the running speed. According to the sightseeing vehicle provided by the invention, the steering control mode of the sightseeing vehicle adapts to the driving speed, so that different driving speeds can correspond to different steering control modes, and the sightseeing vehicle can adapt to different use scenes through changes of the steering control modes.

Description

Technical Field

[0001] This application relates to the technical field of vehicles, and particularly to a sightseeing vehicle. Background Art

[0002] Sightseeing vehicles are used in a variety of scenarios, such as scenic spots, airports, railway stations, bus stations, docks, stadiums, parks, factories, property viewing, etc. The driving conditions vary greatly in different usage scenarios. For example, when driving, it may face scenarios such as narrow space for turning and slippery roads. In related technologies, the steering control mode of sightseeing vehicles is single and difficult to adapt to different usage scenarios. Summary of the Utility Model

[0003] This application provides a sightseeing vehicle, which can solve the technical problem that the sightseeing vehicle is difficult to adapt to different usage scenarios.

[0004] To solve the above technical problem, the sightseeing vehicle provided by this application includes a towing carriage and at least one subordinate carriage. Each subordinate carriage is sequentially connected after the towing carriage. The connection between the towing carriage and the adjacent subordinate carriage and between two adjacent subordinate carriages is detachable; the towing carriage includes first wheels, a steering wheel, and a first control unit. The steering wheel is used to control the deflection of the first wheels. The first control unit is configured to generate a steering control signal based on the steering operation of the steering wheel and send the steering control signal to each subordinate carriage; each subordinate carriage includes second wheels, a steering motor, and a second control unit. The second control unit receives the steering control signal and controls the deflection of the second wheels through the steering motor based on the steering control signal to adjust the steering control mode of the sightseeing vehicle and make the steering control mode adapt to the driving speed.

[0005] In one embodiment, when the driving speed of the sightseeing vehicle is less than or equal to a first speed, the sightseeing vehicle has a first steering control mode; in the first steering control mode, at least one of the deflection direction and deflection angle of each second wheel is different from that of the first wheels, so as to increase the deflection angle between the vehicle body and the driving direction when the sightseeing vehicle turns.

[0006] In one embodiment, in the first steering control mode, the deflection angle of the second wheels of one of the subordinate carriages is zero. In the driving direction of the sightseeing vehicle, the deflection directions of the second wheels before the second wheels with a zero deflection angle are the same as those of the first wheels, and the deflection angles of the second wheels in the driving direction of the sightseeing vehicle decrease in sequence; the deflection directions of the second wheels after the second wheels with a zero deflection angle are opposite to those of the first wheels, and the deflection angles of the second wheels in the driving direction of the sightseeing vehicle increase in sequence.

[0007] In one embodiment, when the sightseeing vehicle travels at a speed greater than the first speed, the sightseeing vehicle has a second steering control mode; in the second steering control mode, the deflection direction and deflection angle of each second wheel are the same as those of the first wheel, so as to reduce the deflection angle between the vehicle body and the driving direction when the sightseeing vehicle turns.

[0008] In one embodiment, the first control unit includes: a detection module for obtaining the driving information of the sightseeing car and the steering operation of the steering wheel; a processor electrically connected to the detection module, for generating a steering control signal based on the driving information, the vehicle combination length and the steering operation; a first communication module electrically connected to the processor, for sending the steering control signal to the second control unit of each slave car.

[0009] In one embodiment, the detection module includes a steering wheel angle sensor, a driving speed sensor, a vehicle roll sensor, and a lateral acceleration sensor.

[0010] In one embodiment, the second control unit includes: a second communication module, used to receive a steering control signal; and a controller, electrically connected to the second communication module and the steering motor, used to control the rotation of the steering motor based on the steering control signal.

[0011] In one embodiment, the traction carriage includes a first box body, a pair of first wheels are installed on both sides of the lower part of the first box body, and a first connecting member is provided on the rear side of the first box body; each slave carriage includes a second box body, a pair of second wheels are installed on both sides of the lower part of the second box body, a second connecting member is provided on the front side of the second box body, and a third connecting member is provided on the rear side, the second connecting member is used to be detachably connected to the first connecting member or the third connecting member of an adjacent slave carriage, and the third connecting member is used to be detachably connected to the second connecting member of an adjacent slave carriage.

[0012] In one embodiment, a locking member is provided at the connection between the second connecting member and the first connecting member and at the connection between the second connecting member and the third connecting member of the adjacent slave carriage to lock the connection between the traction carriage and the adjacent slave carriage and the connection between two adjacent slave carriages.

[0013] In one embodiment, the traction car includes: a first power supply for providing electrical energy when the traction car is working; a first drive motor, electrically connected to the first power supply and drivingly connected to a pair of first wheels, for driving the pair of first wheels to move; each slave car includes: a second power supply for providing electrical energy when the slave car is working; a second drive motor, electrically connected to the second power supply and drivingly connected to a pair of second wheels, for driving the pair of second wheels to move.

[0014] The sightseeing vehicle provided by this application, the towing carriage includes a steering wheel and a first control unit. The first control unit is configured to generate a steering control signal based on the steering operation of the steering wheel and send the steering control signal to each subordinate carriage; each subordinate carriage includes a steering motor and a second control unit. The second control unit controls the deflection of the second wheel through the steering motor based on the steering control signal to adjust the steering control mode of the sightseeing vehicle and make the steering control mode adapt to the driving speed, so that different driving speeds can correspond to different steering control modes, and different usage scenarios can be adapted through the change of the steering control mode. Brief Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic assembly structure diagram of an embodiment of the sightseeing vehicle provided by this application;

[0017] Figure 2 It is a schematic exploded structure diagram of an embodiment of the towing carriage provided by this application;

[0018] Figure 3 It is a schematic diagram of the structural composition block diagram of an embodiment of the towing carriage provided by this application;

[0019] Figure 4 It is a schematic diagram of a partial exploded structure of an embodiment of the towing carriage provided by this application;

[0020] Figure 5 It is a schematic exploded structure diagram of an embodiment of the subordinate carriage provided by this application;

[0021] Figure 6 It is a schematic diagram of the structural composition block diagram of an embodiment of the subordinate carriage provided by this application;

[0022] Figure 7 It is a schematic diagram of a partial exploded structure of an embodiment of the subordinate carriage provided by this application;

[0023] Figure 8 It is a steering schematic diagram of an embodiment of the sightseeing vehicle provided by this application in the first steering control mode;

[0024] Figure 9 It is a steering schematic diagram of an embodiment of the sightseeing vehicle provided by this application in the second steering control mode;

[0025] Figure 10It is a schematic diagram of the structural composition of an embodiment of the first control unit provided by this application;

[0026] Figure 11 It is a schematic diagram of the structural composition of an embodiment of the second control unit provided by this application;

[0027] Figure 12 It is a schematic diagram of the structure of an embodiment of the first box body provided by this application;

[0028] Figure 13 It is a schematic diagram of the structure of an embodiment of the second box body provided by this application from a perspective;

[0029] Figure 14 It is a schematic diagram of the structure of an embodiment of the second box body provided by this application from another perspective;

[0030] Figure 15 It is a schematic diagram of the connection structure of an embodiment of two adjacent subordinate carriages provided by this application. Detailed implementation manners

[0031] In combination with the accompanying drawings and embodiments, the present application will be further described in detail. It should be specifically noted that the following embodiments are only used to illustrate the present application, but do not limit the scope of the present application. Similarly, the following embodiments are only partial embodiments of the present application rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0032] In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically limited. The terms "first", "second", and "third" in the embodiments of the present application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", and "third" may explicitly or implicitly include at least one of such features. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly. The terms "including" and "having" in the embodiments of the present application and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally further include steps or units not listed, or may optionally further include other steps or components inherent to these processes, methods, products, or devices.

[0033] References to "embodiments" in this specification mean that the particular features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0034] The present application provides a sightseeing vehicle. Please refer to Figure 1 , the sightseeing vehicle 100 may include a towing carriage 10 and at least one subordinate carriage 20. The towing carriage 10 is provided with a driver's seat, and the towing carriage 10 is used for the driver to operate the sightseeing vehicle 100. The subordinate carriage 20 is provided with passenger seats for passengers to ride. The number of subordinate carriages 20 can be one, two, three or more. Each subordinate carriage 20 is sequentially connected behind the towing carriage 10, and the towing carriage 10 is detachably connected to the adjacent subordinate carriage 20 and between two adjacent subordinate carriages 20. The detachable connection between two adjacent subordinate carriages 20 is provided so that the connection number of the subordinate carriages 20 can be adjusted in a timely manner according to the passenger flow and the number of members to meet different usage requirements.

[0035] Please refer to Figures 2 - 4 , the towing carriage 10 may include a first box body 11, a first wheel 12, a first power source 13, a first driving motor 14, a steering wheel 15 and a first control unit 16. The driver's seat is arranged in the first box body 11. The first box body 11 can be an open, semi-closed, fully closed or hybrid structure. The first wheels 12 are installed on both sides of the lower part of the first box body 11. The first wheels 12 are used to support the first box body 11 and can drive the first box body 11 to move. The first power source 13 is used to provide electrical energy when the towing carriage 10 is working. The first power source 13 can be a rechargeable battery. The first driving motor 14 is electrically connected to the first power source 13, so that the first power source 13 can provide electrical energy for the first driving motor 14 during operation. The first driving motor 14 is in transmission connection with the first wheels 12, and the first driving motor 14 is used to drive the first wheels 12 to move. The steering wheel 15 is installed in the first box body 11. The steering wheel 15 is in transmission connection with the first wheels 12. The steering wheel 15 is used to control the deflection of the first wheels 12, thereby controlling the steering of the sightseeing vehicle 100. The first control unit 16 is configured to generate a steering control signal based on the steering operation of the steering wheel 15 and send the steering control signal to each subordinate carriage 20, so that each subordinate carriage 20 can steer in coordination under the control of the steering control signal.

[0036] Please refer to Figures 5 - 7, each subordinate carriage 20 may include a second box body 21, second wheels 22, a second power source 23, a steering motor 25, and a second control unit 26. A passenger seat is arranged in the second box body 21. The second box body 21 may be of an open, semi-closed, fully-closed or hybrid structure. The second wheels 22 are mounted on both sides of the lower part of the second box body 21, and the second wheels 22 are used to support the second box body 21. The second power source 23 is used to provide electrical energy when the subordinate carriage 20 operates. The second power source 23 may be a rechargeable battery. The steering motor 25 is electrically connected to the second power source 23, so that the second power source 23 can provide electrical energy for the steering motor 25 during operation. The steering motor 25 is in transmission connection with the second wheels 22, and the steering motor 25 is used to control the deflection of the second wheels 22, so that the second wheels 22 can cooperate with the first wheels 12 to adjust the steering control mode of the sightseeing vehicle 100. The second control unit 26 receives a steering control signal and controls the deflection of the second wheels 22 through the steering motor 25 based on the steering control signal to adjust the steering control mode of the sightseeing vehicle 100 and make the steering control mode adapt to the traveling speed. For example, the steering control mode at a relatively high traveling speed may be different from the steering control mode at a relatively low traveling speed. By setting the deflection of the second wheels 22 to be controlled based on the steering control signal to adjust the steering control mode of the sightseeing vehicle 100 and making the steering control mode adapt to the traveling speed, different traveling speeds can correspond to different steering control modes, and different usage scenarios can be adapted through the change of the steering control mode.

[0037] The subordinate carriage 20 may move under the traction of the towing carriage 10. Or, as Figures 5 - 7 shown, in an embodiment, the subordinate carriage 20 further includes a second driving motor 24. The second driving motor 24 is electrically connected to the second power source 23, so that the second power source 23 can provide electrical energy for the second driving motor 24 during operation. The second driving motor 24 is in transmission connection with the second wheels 22, and the second driving motor 24 is used to drive the second wheels 22 to move, so that the subordinate carriage 20 can be independently driven. By setting the subordinate carriage 20 to be independently driven, the driving force of the sightseeing vehicle 100 can be increased and the load of the towing carriage 10 can be reduced, so that more subordinate carriages 20 can be connected, and the sightseeing vehicle 100 can have a relatively high traveling speed.

[0038] In one embodiment, when the traveling speed of the sightseeing vehicle 100 is less than or equal to the first speed, the sightseeing vehicle 100 has a first steering control mode. Exemplarily, the first speed can be 10 - 40 km / h. When the traveling speed of the sightseeing vehicle 100 is less than or equal to the first speed, it can be that the sightseeing vehicle 100 is in a slow traveling state. In the first steering control mode, at least one of the deflection direction and the deflection angle of each second wheel 22 is different from that of the first wheel 12, so as to increase the deflection angle between the vehicle body and the traveling direction when the sightseeing vehicle 100 steers. The deflection direction of each second wheel 22 can be different from that of the first wheel 12; or, the deflection angle of each second wheel 22 is different from that of the first wheel 12; or, both the deflection direction and the deflection angle of each second wheel 22 are different from those of the first wheel 12. By controlling at least one of the deflection direction and the deflection angle of each second wheel 22 to be different from that of the first wheel 12, a larger deflection angle is formed between the vehicle body of the sightseeing vehicle 100 and the traveling direction, the turning radius of the sightseeing vehicle 100 during steering can be reduced, and thus the vehicle can be applicable to the use scenario of turning in a narrow space.

[0039] In one embodiment, as Figure 8 shown, in the first steering control mode, the deflection angle of the second wheel 22 of one of the subordinate carriages 20 is zero. In the traveling direction of the sightseeing vehicle 100, the deflection directions of the second wheels 22 before the second wheel 22 with a zero deflection angle are the same as that of the first wheel 12, and the deflection angles of the second wheels 22 in the traveling direction of the sightseeing vehicle 100 decrease in sequence; the deflection directions of the second wheels 22 after the second wheel 22 with a zero deflection angle are opposite to that of the first wheel 12, and the deflection angles of the second wheels 22 in the traveling direction of the sightseeing vehicle 100 increase in sequence. By controlling the deflection direction and the deflection angle of each second wheel 22, a larger deflection angle is formed between the vehicle body of the sightseeing vehicle 100 and the traveling direction, the turning radius of the sightseeing vehicle 100 during steering can be reduced, and thus the vehicle can be applicable to the use scenario of turning in a narrow space.

[0040] Please refer to Figure 9 As shown in, in one embodiment, when the traveling speed of the sightseeing vehicle 100 is greater than the first speed, the sightseeing vehicle 100 has a second steering control mode. The second steering control mode can be used for the steering control when the sightseeing vehicle 100 is in a fast traveling state. In the second steering control mode, the deflection direction and the deflection angle of each second wheel 22 are the same as those of the first wheel 12, so as to reduce the deflection angle between the vehicle body and the traveling direction when the sightseeing vehicle 100 steers, thereby improving the steering stability and making the vehicle applicable to the use scenario of a slippery road surface.

[0041] Please refer to Figure 10, in one embodiment, the first control unit 16 includes a detection module 161, a processor 162, and a first communication module 163. The detection module 161 is configured to obtain the driving information of the sightseeing vehicle 100 and the steering operation of the steering wheel 15, so as to control the steering of the vehicle according to the driving information and the steering operation, such that the steering control mode of the sightseeing vehicle 100 is adapted to the driving speed. The processor 162 is electrically connected to the detection module 161. The processor 162 is configured to generate a steering control signal based on the driving information, the vehicle combination length, and the steering operation. The processor 162 may be an integrated circuit chip with signal processing capabilities. The processor 162 may be implemented by multiple integrated circuit chips. Exemplarily, the processor 162 may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The first communication module 163 is electrically connected to the processor 162. The first communication module 163 is configured to send the steering control signal to the second control units 26 of the respective subordinate carriages 20, such that the respective subordinate carriages 20 can steer in coordination under the control of the steering control signal. The communication connection mode of the first communication module 163 may be a wired connection or a wireless connection. For example, the first communication module 163 may include a communication module with one or more wireless connection modes such as a WiFi communication module, a Bluetooth communication module, or a ZigBee communication module.

[0042] The detection module 161 may be provided with a plurality of sensors to obtain the driving information of the sightseeing vehicle 100 and the steering operation of the steering wheel 15. In one embodiment, the detection module 161 includes a steering wheel angle sensor, a driving speed sensor, a vehicle roll sensor, and a lateral acceleration sensor. The steering wheel angle sensor is used to obtain the angle of the steering wheel 15 during a turning operation, so as to obtain the steering operation intention of the driver. The driving speed sensor is used to obtain the driving speed of the vehicle, so as to determine the steering control mode according to the driving speed. The vehicle roll sensor is used to obtain the roll angle of the vehicle, and the lateral acceleration sensor is used to obtain the lateral acceleration of the vehicle, so as to obtain the motion state of the vehicle during turning. By providing the above sensors, the comprehensive driving parameters of the vehicle can be obtained, so as to determine the deflection direction and deflection angle of each second wheel 22 in the steering control mode.

[0043] Please refer to Figure 11, in one embodiment, the second control unit 26 includes a second communication module 261 and a controller 262. The second communication module 261 is communicatively connected to the first communication module 163, and the second communication module 261 is configured to receive a steering control signal. The communication connection between the second communication module 261 and the first communication module 163 can be a wired connection or a wireless connection. The controller 262 is electrically connected to the second communication module 261 and the steering motor 25, and the controller 262 is configured to control the rotation of the steering motor 25 based on the steering control signal. The controller 262 can control the rotation of the steering motor 25 by controlling parameters such as the output torque and action time of the steering motor 25, thereby controlling the deflection direction and deflection angle of the second wheel 22 in the steering control mode.

[0044] The first wheel 12 and the second wheel 22 can be a pair or multiple pairs. Please refer to Figures 2 - 7 , in one embodiment, the first wheel 12 and the second wheel 22 are a pair, the first drive motor 14 is drivingly connected to the pair of first wheels 12, and the first drive motor 14 is configured to drive the pair of first wheels 12 to move; the second drive motor 24 is drivingly connected to the pair of second wheels 22, and the second drive motor 24 is configured to drive the pair of second wheels 22 to move. That is, the towing carriage 10 and the subordinate carriage 20 are single-axis independent drive, which can simplify the processing of the towing carriage 10 and the subordinate carriage 20, and simplify the drive and steering control of the carriage.

[0045] Please refer to Figures 12 - 14 , in one embodiment, a first connecting member 111 is provided at the rear side of the first box body 11, a second connecting member 211 is provided at the front side of the second box body 21, and a third connecting member 212 is provided at the rear side. The second connecting member 211 is used for detachably connecting to the first connecting member 111 or the third connecting member 212 of the adjacent subordinate carriage 20, and the third connecting member 212 is used for detachably connecting to the second connecting member 211 of the adjacent subordinate carriage 20. The first connecting member 111, the second connecting member 211, and the third connecting member 212 can be electromagnets, permanent magnets, or magnetizable metal parts, so that the towing carriage 10 can be magnetically connected to the adjacent subordinate carriage 20 and between two adjacent subordinate carriages 20; the first connecting member 111, the second connecting member 211, and the third connecting member 212 can also be a connection groove structure and a connection pin that cooperates with the connection groove structure, so that the towing carriage 10 can be snap-connected to the adjacent subordinate carriage 20 and between two adjacent subordinate carriages 20. By providing the connecting members, it is convenient to adjust the connection number of the subordinate carriages 20 in a timely manner to meet different usage requirements.

[0046] Please refer to Figure 15, in one embodiment, locking members 213 are provided at the connection between the second connecting member 211 and the first connecting member 111 and at the connection between the second connecting member 211 and the third connecting member 212 of the adjacent subordinate carriage 20 to lock the connection between the towing carriage 10 and the adjacent subordinate carriage 20 and the connection between two adjacent subordinate carriages 20. The locking member 213 can be a pin, a bolt or a snap ring, etc. By providing the locking member, the connection between the towing carriage 10 and the adjacent subordinate carriage 20 and between two adjacent subordinate carriages 20 can be made more firm, thereby ensuring the safety during vehicle driving.

[0047] The above are only some embodiments of the present application, and thus do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present application.

Claims

1. A sightseeing vehicle, characterized in that, It includes a towing carriage and at least one subordinate carriage, and each of the subordinate carriages is sequentially connected after the towing carriage. The towing carriage is detachably connected to the adjacent subordinate carriage and between two adjacent subordinate carriages; The towing carriage includes first wheels, a steering wheel and a first control unit. The steering wheel is used to control the deflection of the first wheels. The first control unit is configured to generate a steering control signal based on the steering operation of the steering wheel and send the steering control signal to each of the subordinate carriages; Each of the subordinate carriages includes second wheels, a steering motor and a second control unit. The second control unit receives the steering control signal and controls the deflection of the second wheels through the steering motor based on the steering control signal to adjust the steering control mode of the sightseeing vehicle and make the steering control mode adapt to the traveling speed.

2. The sightseeing vehicle according to claim 1, characterized in that, When the traveling speed of the sightseeing vehicle is less than or equal to a first speed, the sightseeing vehicle has a first steering control mode; In the first steering control mode, at least one of the deflection direction and the deflection angle of each of the second wheels is different from that of the first wheels, so as to increase the deflection angle between the vehicle body and the traveling direction when the sightseeing vehicle turns.

3. The sightseeing vehicle according to claim 2, wherein In the first steering control mode, the deflection angle of the second wheels of one of the subordinate carriages is zero. In the traveling direction of the sightseeing vehicle, the deflection directions of the second wheels before the second wheels with a zero deflection angle are the same as those of the first wheels, and the deflection angles of the second wheels in the traveling direction of the sightseeing vehicle decrease in sequence; the deflection directions of the second wheels after the second wheels with a zero deflection angle are opposite to those of the first wheels, and the deflection angles of the second wheels in the traveling direction of the sightseeing vehicle increase in sequence.

4. The sightseeing vehicle according to claim 1, characterized in that, When the traveling speed of the sightseeing vehicle is greater than the first speed, the sightseeing vehicle has a second steering control mode; In the second steering control mode, the deflection directions and the deflection angles of each of the second wheels are the same as those of the first wheels, so as to reduce the deflection angle between the vehicle body and the traveling direction when the sightseeing vehicle turns.

5. The sightseeing vehicle according to claim 1, characterized in that, The first control unit includes: A detection module for obtaining the traveling information of the sightseeing vehicle and the steering operation of the steering wheel; A processor electrically connected to the detection module for generating the steering control signal based on the traveling information, the vehicle combination length and the steering operation; A first communication module electrically connected to the processor for sending the steering control signal to the second control unit of each of the subordinate carriages.

6. The sightseeing vehicle according to claim 5, characterized in that, The detection module includes a steering wheel angle sensor, a traveling speed sensor, a vehicle roll sensor and a lateral acceleration sensor.

7. The sightseeing vehicle according to claim 5, wherein, The second control unit includes: A second communication module for receiving the steering control signal; A controller electrically connected to the second communication module and the steering motor for controlling the rotation of the steering motor based on the steering control signal.

8. The sightseeing vehicle according to claim 1, characterized in that, The towing carriage includes a first box body, and a pair of the first wheels are installed on both sides of the lower part of the first box body. A first connecting piece is provided at the rear side of the first box body; Each of the subordinate carriages includes a second box body, and a pair of the second wheels are installed on both sides of the lower part of the second box body. A second connecting piece is provided at the front side of the second box body, and a third connecting piece is provided at the rear side. The second connecting piece is used for detachably connecting with the first connecting piece or the third connecting piece of the adjacent subordinate carriage, and the third connecting piece is used for detachably connecting with the second connecting piece of the adjacent subordinate carriage.

9. The sightseeing vehicle according to claim 8, wherein, Locking pieces are provided at the connection between the second connecting piece and the first connecting piece and at the connection between the second connecting piece and the third connecting piece of the adjacent subordinate carriage to lock the connection between the towing carriage and the adjacent subordinate carriage and the connection between two adjacent subordinate carriages.

10. The sightseeing vehicle according to claim 8, wherein, The towing carriage includes: A first power source for providing electric energy when the towing carriage works; A first driving motor, electrically connected to the first power source and drivingly connected to a pair of the first wheels, for driving a pair of the first wheels to move; Each of the subordinate carriages includes: A second power source for providing electric energy when the subordinate carriage works; A second driving motor, electrically connected to the second power source and drivingly connected to a pair of the second wheels, for driving a pair of the second wheels to move.

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