Vehicle-mounted ramp, vehicle, control method and control device of vehicle-mounted ramp

Abstract

The application discloses a vehicle-mounted ramp, a vehicle, a control method and a control device of the vehicle-mounted ramp. The vehicle-mounted ramp comprises a first ramp, at least one second ramp, a first driving component and a second driving component. The first ramp comprises two side plates arranged oppositely and at least one step plate rotatably connected between the two side plates. The second ramp is foldably connected to the first ramp. The first driving component is connected with the first ramp and drives the first ramp to unfold or shrink. The second driving component is located at the connection between the first ramp and the second ramp and drives the second ramp to rotate relative to the first ramp. The shape of the vehicle-mounted ramp can be folded or rotated, so that the vehicle-mounted ramp can be applied to different cargo loading and unloading scenes, and the cargo loading and unloading efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of foldable ramp technology, and in particular to a vehicle-mounted ramp, a vehicle, a control method for the vehicle-mounted ramp, and a control device for the control device. Background Technology

[0002] There is usually a height difference between the vehicle and the ground, so when moving heavy items, manual handling is often required. This is especially true for pickup trucks. The height of pickup trucks makes it difficult to move goods up and down the cargo bed, and they also cannot handle heavy loads, directly impacting efficiency and ease of use. Furthermore, their loading and unloading scenarios are quite limited. Summary of the Invention

[0003] This application provides a vehicle-mounted ramp, a vehicle, a control method for the vehicle-mounted ramp, and a control device, aiming to improve cargo loading and unloading efficiency while supporting cargo loading and unloading in different scenarios.

[0004] This application provides a vehicle-mounted ramp, which includes:

[0005] A first ramp, comprising two oppositely arranged side plates and at least one step plate located between the two side plates and rotatably connected to the side plates.

[0006] At least one second ramp, which is foldable and connected to the first ramp;

[0007] A first driving component is connected to the first ramp and drives the first ramp to expand or retract.

[0008] The second driving component is located at the connection between the first ramp and the second ramp, and drives the second ramp to rotate relative to the first ramp.

[0009] Optionally, the vehicle-mounted ramp further includes:

[0010] The third driving component is located at the connection between the side plate and the step plate, driving the step plate to rotate and making the step plate parallel to the horizontal plane or at an angle to the horizontal plane.

[0011] Optionally, the third driving component includes a motor gear transmission mechanism and a stepped connecting rod. The motor gear transmission mechanism is connected to one of the stepped plates, and the stepped connecting rod is connected to all the stepped plates. When the motor gear transmission mechanism moves, the stepped connecting rod drives the other stepped plates to move synchronously, and makes all the stepped plates parallel to the horizontal plane or at an angle to the horizontal plane.

[0012] Optionally, the first ramp further includes:

[0013] A stepped beam and a rotating limiting component corresponding to the stepped plate are located between the two side plates;

[0014] Specifically, when the step plate is parallel to the horizontal plane, the rotation limiting member is used to limit the maximum rotation angle of the step plate; when the step plate is at an angle to the horizontal plane, the step beam is used to support the step plate.

[0015] Optionally, the first driving component includes:

[0016] A helical transmission mechanism is located in the cavity of the vehicle-mounted ramp and is connected to the first ramp, driving the first ramp to expand or contract.

[0017] Optionally, the vehicle-mounted ramp further includes:

[0018] An obstacle detection sensor is used to detect whether there are obstacles during the unfolding or retraction of the first and second ramps.

[0019] Optionally, the obstacle detection sensor includes:

[0020] The vehicle includes a radar sensor and multiple Hall effect sensors, with the radar sensor located on the vehicle body and the Hall effect sensors located on the back of the first drive component and the second drive component, respectively.

[0021] Optionally, the vehicle-mounted ramp further includes:

[0022] The controller is communicatively connected to the first drive component and the second drive component. The controller receives control signals and controls the first drive component and / or the second drive component to work according to the control signals.

[0023] Optionally, the vehicle-mounted ramp further includes:

[0024] At least one control button, which communicates with the controller to control the movement of the first ramp and / or the second ramp.

[0025] Optionally, the second ramp includes:

[0026] A first sub-staircase and a second sub-staircase, wherein the first sub-staircase is foldably connected to the first sub-staircase, and the second sub-staircase is foldably connected to the opposite side plates of the first sub-staircase.

[0027] Optionally, the vehicle-mounted ramp further includes:

[0028] A fourth driving component is located at the connection between the first sub-slope and the second sub-slope, and drives the second sub-slope to rotate relative to the first sub-slope.

[0029] In addition, to achieve the above objectives, this application also provides a vehicle for loading and unloading goods, the vehicle including a cargo compartment, a vehicle ramp receiving chamber and at least one vehicle ramp housed in the vehicle ramp receiving chamber, the vehicle ramp including the vehicle ramp described above.

[0030] Optionally, the vehicle-mounted ramp is located at at least one of the left and right rear sides of the vehicle.

[0031] Furthermore, to achieve the above objectives, this application provides a vehicle-mounted ramp method, which includes:

[0032] Upon receiving a control command, the target state of the vehicle-mounted ramp is determined based on the control command.

[0033] Determine the control signal corresponding to the movement of the vehicle-mounted ramp to the target state;

[0034] The vehicle-mounted ramp is controlled to move based on the control signal to control the vehicle-mounted ramp to be in the target state, which includes a ramp state or a staircase state.

[0035] Optionally, the method further includes:

[0036] During the movement of the vehicle-mounted ramp based on the control signal, the presence of obstacles is detected;

[0037] If present, an alarm signal is generated based on the distance between the vehicle-mounted ramp and the obstacle;

[0038] Alternatively, if not, perform the step of controlling the vehicle-mounted ramp to move based on the control signal to control the vehicle-mounted ramp to be in the target state.

[0039] Optionally, the step of detecting the presence of an obstacle during the movement of the vehicle-mounted ramp based on the control signal includes:

[0040] During the movement of the vehicle-mounted ramp based on the control signal, the rotational speed of the drive component of the vehicle-mounted ramp and the pulse signal of the obstacle detection sensor are acquired;

[0041] If neither the rotational speed nor the pulse signal meets the preset conditions, an obstacle is determined to exist.

[0042] Optionally, after the step of generating an alarm signal based on the distance between the vehicle-mounted ramp and the obstacle, the method further includes:

[0043] The rotation angle and rotation direction of the driving component are determined based on the rotation speed and the pulse signal;

[0044] Control commands for the drive component are generated based on the rotation angle and the rotation direction.

[0045] Optionally, the control signal includes one of an extension control signal, a contraction control signal, a folding control signal, and a rotation control signal.

[0046] Optionally, the control command includes at least one of a button trigger command and a remote control command.

[0047] In addition, to achieve the above objectives, the present invention also provides a control device for a vehicle ramp, comprising: a memory, a processor, and a vehicle ramp program stored in the memory and executable on the processor, wherein the vehicle ramp program, when executed by the processor, implements the steps of the vehicle ramp method described above.

[0048] This application provides a technical solution for a vehicle-mounted ramp, a vehicle, a control method for the vehicle-mounted ramp, and a control device. The first ramp includes two opposing side panels and at least one step plate located between the side panels and rotatably connected to them. At least one second ramp is provided, foldably connected to the first ramp. A first driving component is connected to the first ramp and drives it to unfold or retract. A second driving component is located at the connection between the first and second ramps and drives the second ramp to rotate relative to the first ramp. Because the shape of this vehicle-mounted ramp can be folded or rotated, it can be adapted to different cargo loading and unloading scenarios, while improving cargo loading and unloading efficiency. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of the structure of the first embodiment of the vehicle-mounted ramp of the present invention;

[0050] Figure 2 This is a schematic diagram of the structure of the second embodiment of the vehicle-mounted ramp of the present invention;

[0051] Figure 3 This is a structural schematic diagram of the third embodiment of the vehicle-mounted ramp of the present invention;

[0052] Figure 4 This is a schematic diagram of the fourth embodiment of the vehicle-mounted ramp of the present invention;

[0053] Figure 5 This is a schematic diagram of the structure of the vehicle-mounted ramp ladder of the present invention in different forms;

[0054] Figure 6This is a flowchart illustrating an embodiment of the vehicle-mounted ramp method of the present invention;

[0055] Figure 7 This is a flowchart illustrating another embodiment of the vehicle-mounted ramp method of the present invention;

[0056] Figure 8 This is a schematic diagram of the hardware structure of the control device for the vehicle-mounted ramp of the present invention.

[0057] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0058] To better understand the above technical solutions, exemplary embodiments of this disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art.

[0059] The technical solution of the present invention has the following characteristics:

[0060] ①The multi-purpose ramp ladder designed in this invention adopts a single-stage telescopic and multi-stage folding extension mode, which can effectively solve the problems of deformation and inability to retract of fully telescopic ramp ladders and the complex structure of fully folding ramp ladders.

[0061] ② The multi-level folding mechanism designed in this invention is a downward folding form, and after the folding is completed, the cross sections of each level of the ramp are completely overlapped, which can greatly enhance the bearing capacity of the slope, improve the bending strength and torsional stiffness of the slope, and reduce the shear force borne by the rotation axis of each level of the ramp.

[0062] ③ The first-stage ramp drive method of the present invention adopts screw transmission, which mainly utilizes the self-locking advantage of screw transmission, making the ramp stable and infinitely fixed during the extension and use process.

[0063] ④ The rotation center of the step plate in the first-level ramp of this invention adopts an upward offset design. This can increase the exposed area of ​​the step plate in the step state for the convenience of users, and facilitate the arrangement of load-bearing crossbeams at the bottom of the center line of the step plate to enhance the strength of the step plate in the slope state. In addition, rotation limiters and step connecting rods are designed to enable the upper and lower step plates to rotate to the designated position when only one set of motor gear transmission mechanism drives the middle step plate, and ensure that the rotation angle of each step plate is consistent.

[0064] ⑤ This invention combines the vehicle's original reversing ultrasonic radar with the Hall sensor located on the back of the motor to achieve intelligent anti-collision and intelligent anti-pinch functions for multi-purpose ramps.

[0065] ⑥ This invention takes into account a variety of user application scenarios. It designs physical buttons for controlling the multi-purpose ramp on the side of the cargo box and designs a variety of fully automatic control modes that are linked to the cargo box tail door, which can provide users with a convenient, practical, beautiful and safe user experience.

[0066] Specifically, this application proposes a vehicle-mounted ramp. In the first embodiment of this application, the vehicle-mounted ramp includes:

[0067] A first ramp 10 includes two opposing side plates and at least one step plate 30 located between the two side plates and rotatably connected to the side plates.

[0068] Optionally, the step 30 can be Figure 1 The step position shown is parallel to the horizontal plane, i.e., in a stepped state. Optionally, in the stepped state, there can be one or more step plates 30; the number of step plates 30 can be determined according to actual needs. When there are multiple step plates 30, the synchronous and unidirectional movement of each step plate can be controlled by a step linkage and a motor gear transmission mechanism. This makes it convenient for people to get on and off the vehicle in this stepped state.

[0069] A first driving component is also provided in the vehicle ramp receiving chamber. The first driving component is connected to the first ramp and drives the first ramp 10 to extend out of the vehicle ramp receiving chamber and unfold, or drives the first ramp to retract into the vehicle ramp receiving chamber.

[0070] Optionally, the first driving component can be a screw drive mechanism located within the vehicle-mounted ramp housing and connected to the first ramp, used to drive the first ramp to extend or retract. By utilizing the self-locking function of the screw drive mechanism, the first ramp can be smoothly and infinitely fixed during extension or retraction.

[0071] Reference Figure 1 The vehicle-mounted ramp includes at least one second ramp 20, which is foldably connected to the first ramp 10. A second drive unit 40 is located at the connection between the first ramp 10 and the second ramp 20, and drives the second ramp 20 to rotate relative to the first ramp 10.

[0072] Optionally, refer to Figure 2 The step 30 can also be at an angle to the horizontal plane, i.e., in a sloping state; in this sloping state, the direction of the step 30 is consistent with the extension direction of the side plates. This makes loading and unloading goods convenient in this sloping state.

[0073] Optionally, the vehicle-mounted ramp also includes a controller, which is communicatively connected to the first drive component and the second drive component. When the controller receives a control signal, it can control the first drive component or the second drive component to operate according to the control signal.

[0074] Optionally, the number of drive components of the vehicle-mounted ramp of this application is not limited to the first drive component and the second drive component, but can also be determined according to the specific structure of the vehicle-mounted ramp.

[0075] Optionally, the vehicle-mounted ramp also includes at least one control button. This control button communicates with a controller. When the controller receives a control signal from the control button, it can control the operation of the first drive component and / or the second drive component, thereby controlling the movement of the first ramp and / or the second ramp. The control button can be located inside the vehicle. The operating mode of the control button on the vehicle-mounted ramp can be determined. The control button can be a physical button or a virtual button.

[0076] For example, when a user opens the power tailgate using physical buttons inside the vehicle, the multi-purpose ramp on the driver's side automatically extends to a stepped configuration by default. Alternatively, when a user opens the tailgate using physical buttons on the driver's side panel of the cargo box, button ① (closest to the driver's cabin) is defined to open the tailgate and extend the multi-purpose ramp to a stepped configuration on the driver's side, while button ② (closest to the tailgate) is defined to open the tailgate and extend the multi-purpose ramp to a double-ramp configuration. With the tailgate open, pressing button ① extends the multi-purpose ramp to a stepped configuration on the driver's side, and pressing button ② extends the multi-purpose ramp to a double-ramp configuration. Pressing both buttons simultaneously closes the tailgate. Alternatively, when a user opens the tailgate using the control buttons on the power tailgate, the multi-purpose ramp does not automatically extend.

[0077] In addition to controlling the vehicle's ramp via physical buttons, users can also open it using the virtual button on the tailgate of the cargo box on the vehicle's infotainment system. The secondary menu on this interface allows users to configure the automatic extension mode of the multi-purpose ramp. Alternatively, when users remotely open the electric tailgate using the physical key, the multi-purpose ramp on the driver's side automatically extends into a stepped configuration by default. Users can also open it via the virtual button on the tailgate of the cargo box on the mobile app interface, where the secondary menu allows users to configure the automatic extension mode of the multi-purpose ramp. Furthermore, when closing the electric tailgate using any method, the folding and retracting multi-purpose ramp always closes first.

[0078] According to the above embodiments, this application provides a first ramp, which includes two opposing side plates and at least one step plate located between the side plates and rotatably connected to them; at least one second ramp, which is foldably connected to the first ramp; a first driving component connected to the first ramp, driving the first ramp to unfold or retract; and a second driving component located at the connection between the first and second ramps, driving the second ramp to rotate relative to the first ramp. Because the shape of this vehicle-mounted ramp is foldable and rotatable, it is suitable not only for cargo loading and unloading scenarios but also for facilitating passenger boarding and alighting. The foldable structure reduces the footprint of the vehicle-mounted ramp. Furthermore, a screw drive mechanism controls the unfolding or retraction of the first ramp, fully utilizing its self-locking function to ensure smooth and stepless fixation during extension or retraction. In addition, different control buttons are defined to control different operating modes of the vehicle-mounted ramp.

[0079] Based on the first embodiment, referring to Figures 1-3 In the second embodiment of this application, the vehicle-mounted ramp of this application further includes:

[0080] Optionally, the vehicle-mounted ramp also includes a third drive component located at the connection between the side panel and the step plate, which drives the step plate to rotate so that the step plate is parallel to the horizontal plane or at an angle to the horizontal plane; that is, the step plate is rotated by the third drive component so that the step plate is in a ramp state or a step state.

[0081] Optionally, refer to Figure 3 The third driving component includes a motor gear transmission mechanism 70 and a step connecting rod 60. The motor gear transmission mechanism 70 is connected to one of the step plates, and the step connecting rod 60 is connected to all the step plates. When the motor gear transmission mechanism 70 moves, the step connecting rod 60 drives the other step plates to move synchronously, making the step plates parallel to or at an angle to the horizontal plane, thus positioning the first ramp in either a stepped or inclined state. The first ramp's step plate rotation center is designed to be upwardly offset, increasing the exposed area of ​​the step plates in the stepped state for user convenience.

[0082] For example, the motor gear transmission mechanism 70 can be connected to the intermediate step plate; it can drive the upper and lower step plates of the intermediate step plate to rotate to a specified position by using only one set of motor gear transmission mechanisms to drive the intermediate step plate, and ensure that the rotation angle of each step plate is consistent.

[0083] For example, refer to Figure 1 and Figure 3When the first ramp is in a retracted state and needs to be extended into a stepped state, the ramp cover motor is first started to open the ramp cover, then the first drive component is started to drive the first ramp to extend out of the vehicle ramp housing chamber to a position of 45° with the horizontal plane through the screw drive, then the second drive component is started to drive the second ramp to rotate downward by 45° to a position parallel to the horizontal plane, and finally the third drive component is started to drive the step plate to rotate into the stepped state through the motor gear transmission mechanism and the step linkage.

[0084] Optionally, refer to Figure 3 The first ramp also includes a step beam 80 and a rotation limiting member 50 corresponding to the step slab. The step beam 80 and rotation limiting member 50 are located between the two side slabs, meaning they are fixedly connected to each other. The step beam 80 can be located at the bottom of the centerline of the step slab. When there are multiple step slabs, each step slab has a corresponding step beam 80 and rotation limiting member 50. When the step slab forms an angle with the horizontal plane, i.e., in a ramp state, the step beam 80 supports the step slab, enhancing its strength in the ramp state. When the step slab is parallel to the horizontal plane, i.e., in a step state, the rotation limiting member 50 limits the maximum rotation angle of the step slab, preventing further rotation after this maximum angle. At this maximum rotation angle, the step slab is parallel to the horizontal plane. The rotating limiter in the stepped state can be lengthened and connected to form a stepped crossbeam to strengthen the first slope.

[0085] Optionally, an obstacle detection sensor is also provided on the back of the third drive component. This obstacle detection sensor is a Hall sensor, which is used to detect whether there is an obstacle during the rotation of the step plate.

[0086] According to the above-described embodiments, this application provides a third driving component at the connection between the side panel and the step plate. This third driving component drives the step plate to rotate, allowing the first ramp to freely switch between a ramp state and a step state, satisfying both passenger boarding and alighting and cargo loading and unloading. Furthermore, each step plate is equipped with a corresponding step beam and a rotation limiter. The cooperation between the third driving component and the step beam increases the stability of the step plate in the ramp state, and the cooperation between the third driving component and the rotation limiter increases the stability of the step plate in the step state.

[0087] Based on the first and second embodiments, in the third embodiment of this application, the vehicle-mounted ramp further includes:

[0088] An obstacle detection sensor is used to detect whether there are obstacles during the unfolding or retraction of the first and second ramps. Multiple obstacle detection sensors may be included and located at different positions.

[0089] Optionally, the obstacle detection sensor can be composed of a radar sensor and multiple Hall effect sensors. The radar sensor is located on the vehicle body; when the first ramp is about to unfold, i.e., within the ramp housing cavity, the radar sensor detects whether there is an obstacle in front of the vehicle body, thereby achieving intelligent collision avoidance for the ramp. The Hall effect sensors can be respectively installed on the back of the first, second, or third drive components; wherein, a Hall effect sensor is installed on the first drive component to detect whether there is an obstacle during the retraction or unfolding of the first ramp; a Hall effect sensor is installed on the second drive component to detect whether there is an obstacle during the folding of the second ramp, ensuring proper folding of the second ramp; and a Hall effect sensor is installed on the third drive component to detect whether there is an obstacle during the rotation of the step plate. By using Hall effect sensors, an intelligent anti-pinch effect is achieved.

[0090] For example, in one embodiment, an existing ultrasonic radar positioned behind the vehicle enables intelligent collision avoidance. When there are no obstacles within 1.2m directly behind the vehicle ramp, the ramp is allowed to extend and transform into a stepped state; when there are no obstacles within 2m directly behind the vehicle ramp, the ramp is allowed to extend and transform into a ramp state. At the same time, Hall sensors are arranged on the back of each drive component of the vehicle ramp. If an obstacle is encountered, the pulse width collected by the Hall sensor will change abruptly. Upon receiving this signal, the drive component controller immediately reverses the drive component at a small angle and stops working, thus achieving intelligent anti-pinch function.

[0091] According to the above embodiments, this application achieves intelligent collision avoidance by installing radar sensors on the vehicle body to detect obstacles behind the vehicle. It also achieves intelligent anti-pinch functionality by installing Hall effect sensors on the back of each drive component.

[0092] Based on the first to third embodiments, refer to Figure 1 and Figure 4 In the fourth embodiment of this application, reference is made to Figure 1 The second ramp 20 of this application further includes a first sub-ramp 21 and a second sub-ramp 22. The first sub-ramp 21 is foldably connected to the first ramp 10, and the second sub-ramp 22 is foldably connected to the oppositely arranged side plates of the first sub-ramp 21. In this state, the vehicle-mounted ramp can be as follows: Figure 1 The stepped state is shown.

[0093] Optionally, a fourth driving component is also provided at the connection between the first sub-ramp 21 and the second sub-ramp 22. This fourth driving component is used to drive the second sub-ramp 22 to rotate relative to the first sub-ramp 21, so that the vehicle-mounted ramp is in an inclined state. For example, refer to Figure 4When the fourth driving component drives the second sub-ramp 22 to rotate relative to the first sub-ramp 21, the final shape formed can be... Figure 4 The slope state in the middle.

[0094] For example, refer to Figure 4 When the ramp is in the retracted state and needs to be extended into a ramp state, firstly, the ramp cover motor is activated to open the ramp cover. Then, the first drive unit is activated to drive the first ramp to extend out of the cargo box tail door to the folded position parallel to the horizontal plane through the screw drive. Next, the second drive unit is activated to drive the second ramp to rotate downward 180° to the position parallel to the horizontal plane. Then, the fourth drive unit is activated to drive the second ramp to rotate downward 180° to the position parallel to the horizontal plane. Finally, the first drive unit is activated again to drive the vehicle ramp to extend out of the cargo box tail door to the position at a 30° angle to the horizontal plane through the screw drive, entering the ramp state.

[0095] Optionally, an obstacle detection sensor is also provided on the back of the fourth drive component. This obstacle detection sensor is a Hall sensor, which is used to detect whether there is an obstacle during the folding of the second sub-ramp 22.

[0096] Optionally, the number of sub-slopes can be increased or decreased according to the actual application scenario to suit different application scenarios.

[0097] According to the above embodiments, this application provides a foldable second ramp and a second sub-ramp, and drives the second sub-ramp to rotate via a fourth drive component, thereby placing the vehicle-mounted ramp in a slope state.

[0098] Based on the same inventive concept, this application proposes a vehicle for loading and unloading goods. The vehicle includes a cargo compartment, a vehicle-mounted ramp receiving chamber, and at least one vehicle-mounted ramp housed in the vehicle-mounted ramp receiving chamber.

[0099] Optionally, the vehicle-mounted ramp receiving chamber of this application can be multiple, and each vehicle-mounted ramp receiving chamber can be used to store one or more vehicle-mounted ramps. Optionally, the vehicle-mounted ramp of this application can also be provided in multiple configurations. When there are multiple vehicle-mounted ramps, they can be arranged as follows: Figure 5 As shown, one is set to a stepped configuration for easy boarding and alighting, while the other is set to a ramp configuration for easy loading and unloading of goods. Alternatively, both can be set to ramp configurations for moving large goods, such as loading and unloading heavy outdoor off-road equipment like motorcycles and ATVs.

[0100] Optionally, the operating mode of each vehicle-mounted ramp can be controlled via a corresponding control button. Optionally, each vehicle-mounted ramp is equipped with a corresponding radar sensor and Hall sensor. Optionally, the location of the vehicle-mounted ramp can be determined according to actual conditions; for example, the ramp can be located at the rear of the vehicle. When there are multiple ramps, they can be located on the left and right sides of the rear of the vehicle, such as the left rear side or the right rear side. Optionally, the ramp can also be located on the left or right side of the vehicle. The automatic extension mode of the ramp can be one of the following: driver-side stepped type, passenger-side stepped type, double-step type, driver-side ramp type, passenger-side ramp type, double ramp type, or non-automatic extension.

[0101] The vehicle-mounted ramp described in this embodiment is the same as that described in the first to fourth embodiments. The specific structure and function of the vehicle-mounted ramp can be found in the above embodiments and will not be repeated here.

[0102] This embodiment, based on the above technical solution, designs a vehicle for loading and unloading goods, and houses the vehicle-mounted ramp within its ramp-accommodating cavity, thereby reducing the area occupied by the ramp. Furthermore, by setting the ramp in different locations and implementing different operating modes, the ramp can operate in various modes.

[0103] Based on the same inventive concept, referring to Figure 6 This application also proposes a control method for a vehicle-mounted ramp, comprising the following steps:

[0104] Step S110: Upon receiving a control command, determine the target state of the vehicle-mounted ramp according to the control command.

[0105] Optionally, the control command includes at least one of a button trigger command and a remote control command. The button can be a physical control button or a virtual control button, etc. The remote control can be based on an app or a physical remote control, etc. Different control methods correspond to different control signals, specifically including but not limited to the following implementation methods:

[0106] Example 1: When a user opens the electric cargo box tailgate using the physical button inside the vehicle, the multi-purpose ramp on the driver's side automatically extends into a stepped state by default; the user can also open it using the virtual tailgate button on the vehicle's infotainment system, and the automatic extension mode of the multi-purpose ramp can be set in the secondary menu of this interface.

[0107] Example 2: When a user opens the electric cargo box tailgate remotely using a physical key, the multi-purpose ramp on the driver's side automatically extends into a stepped state by default; the user can also open it through the virtual button on the cargo box tailgate in the mobile APP interface, and the automatic extension mode of the multi-purpose ramp can be set in the secondary menu of this interface.

[0108] Example 3: When the user opens the tailgate of the cargo box using the physical buttons on the driver's side panel, button ①, which is closer to the driver's cab, is defined as opening the tailgate and extending the multi-purpose ramp to the driver's side stepped type, while button ②, which is closer to the tailgate, is defined as opening the tailgate and extending the multi-purpose ramp to the double-ramp type. With the tailgate open, pressing button ① extends the multi-purpose ramp to the driver's side stepped type, and pressing button ② extends the multi-purpose ramp to the double-ramp type. Pressing buttons ① and ② simultaneously closes the tailgate.

[0109] Example 4: When the user opens the tailgate using the physical button on the electric cargo box tailgate, the ramp does not extend automatically;

[0110] Example 5: When a user closes the electric cargo box tailgate in any way, the closing steps are always to first fold and retract the multi-purpose ramp.

[0111] Step S120: Determine the control signal corresponding to the movement of the vehicle-mounted ramp to the target state.

[0112] Step S130: Control the vehicle-mounted ramp to move based on the control signal, so as to control the vehicle-mounted ramp to be in the target state, the target state including ramp state or stair state.

[0113] Optionally, the control signal may be an extension control signal for the vehicle-mounted ramp extending out of the vehicle-mounted ramp receiving chamber; the control signal may also be a control signal for retracting the vehicle-mounted ramp into the vehicle-mounted ramp receiving chamber; the control signal may also be a control signal for the second ramp folding over the first ramp, or a control signal for the second sub-ramp folding over the first sub-ramp, etc.; the control signal may also be a rotation signal for the step plate; the control signal may also be a combination of the above-mentioned signals.

[0114] Optionally, the target state can be either a ramp state or a stepped state. Optionally, when the received control command is a stepped state control command, the target state of the vehicle-mounted ramp is determined to be a stepped state. The control signal corresponding to the vehicle-mounted ramp moving to this stepped state can be: an extension control signal or a rotation control signal.

[0115] For example, when a vehicle ramp needs to be extended from its retracted state to a stepped state, the ramp cover should be activated first.

[0116] The motor opens the ramp cover, then the first drive unit is activated to drive the first ramp through the screw drive to extend the cargo box 5 tail door to a position at a 45° angle with the horizontal plane. Then the second drive unit is activated to drive the second ramp to rotate downwards by 45° to a position parallel to the horizontal plane. Finally, the third drive unit is activated to drive the step plate to rotate to the step state through gears and step linkage.

[0117] Optionally, when the received control command is a ramp state control command, the target state of the vehicle-mounted ramp is determined to be a ramp state. The control signal corresponding to the vehicle-mounted ramp moving to this ramp state can be: an extension control signal or a rotation control signal.

[0118] For example, when the vehicle ramp is in the retracted state and needs to be extended into a ramp state, firstly, the ramp cover motor is activated to open the ramp cover. Then, the first drive unit is activated to drive the first ramp to extend out of the cargo box tailgate through the screw drive until it is in the folded position parallel to the horizontal plane. Next, the second drive unit is activated to drive the second ramp to rotate downward 180° to the position parallel to the horizontal plane. Then, the fourth drive unit is activated to drive the second ramp to rotate downward 180° to the position parallel to the horizontal plane. Finally, the first drive unit motor is activated again to drive the multi-purpose ramp to extend out of the cargo box tailgate through the screw drive until it is at a 30° angle to the horizontal plane, thus entering the ramp state.

[0119] Optionally, the vehicle-mounted ramp can also change from a stepped state to a ramp state, or from a ramp state to a stepped state. When the vehicle-mounted ramp changes from a stepped state to a ramp state, the corresponding control signal can also be a rotation signal, a folding signal, etc.

[0120] For example, when the vehicle-mounted ramp needs to extend from a stepped state to a ramp state, the third drive unit is first activated to drive the three step plates to rotate to the ramp state via gears and step linkages. Then, the first drive unit is activated to drive the first ramp to retract the cargo box tailgate to the folded position parallel to the horizontal plane via screw transmission. Subsequently, the second drive unit is activated to drive the second ramp to rotate downwards by 135° to the horizontal plane.

[0121] Then, the fourth drive unit is activated to drive the second sub-ramp to rotate downwards by 180° to a position parallel to the horizontal plane. Finally, the first drive unit is activated again to drive the multi-purpose ramp to extend out of the cargo box tail door through the screw drive to a position at a 30° angle to the horizontal plane, entering the ramp state.

[0122] Similarly, the vehicle-mounted ramp can also change from a stepped state to a retracted state, or from a ramp state to a retracted state. The vehicle-mounted ramp includes, but is not limited to, the above-mentioned working states, and there are corresponding control signals for different working states.

[0123] According to the above technical solution, this embodiment adopts the following technical means: upon receiving a control command, determining the target state of the vehicle-mounted ramp according to the control command; determining the control signal corresponding to the movement of the vehicle-mounted ramp to the target state; and controlling the movement of the vehicle-mounted ramp based on the control signal to control the vehicle-mounted ramp to be in the target state, the target state including a ramp state or a step state, so that the vehicle-mounted ramp can meet different application scenarios.

[0124] Based on the embodiments of the above control method, refer to Figure 7 In another embodiment of this application, the control method for the vehicle-mounted ramp of this application further includes the following steps:

[0125] Step S210: During the movement of the vehicle-mounted ramp based on the control signal, detect whether there is an obstacle.

[0126] In this embodiment, during the folding, extending, retracting, and rotating processes of the vehicle-mounted ramp, it may encounter obstacles that prevent it from moving normally. Therefore, the presence of obstacles can be detected during the movement of the vehicle-mounted ramp.

[0127] Optionally, the obstacle detection process can be as follows: during the movement of the vehicle ramp based on the control signal, the rotation speed of the drive component corresponding to the vehicle ramp and the pulse signal of the obstacle detection sensor are acquired. If neither the rotation speed nor the pulse signal meets the preset conditions, then it is determined that an obstacle exists.

[0128] Optionally, the driving component can be one of a first driving component, a second driving component, a third driving component, and a fourth driving component; specifically, the motor speed of the first to the fourth driving components can be detected.

[0129] Optionally, the preset condition can be that an obstacle exists when the motor speed is less than a preset speed. Optionally, the pulse signal can be a pulse width, and the preset condition can be that an obstacle exists when the pulse width of the obstacle detection sensor is greater than a preset width. Optionally, the preset condition can also be that an obstacle exists when the motor speed is less than a preset speed and the pulse width is greater than a preset width.

[0130] If present, in step S210, an alarm signal is generated based on the distance between the vehicle-mounted ramp and the obstacle.

[0131] In this embodiment, when an obstacle is present, an alarm signal can be generated based on the distance between the vehicle-mounted ramp and the obstacle. The content of this alarm signal can be determined according to the actual situation. Furthermore, the alarm signal can be sent to the user terminal or broadcast via voice to remind the user, thereby achieving intelligent anti-collision or intelligent anti-pinch effects.

[0132] Optionally, while or after generating the alarm signal, the rotation angle and direction of the drive component can be determined based on the rotation speed and pulse signal, and then a corresponding control command for the drive component can be generated based on this rotation angle and direction. Alternatively, the newly generated control command can be used to update the previously determined control signal, thereby achieving intelligent anti-collision or intelligent anti-pinch effects. Specific application scenarios include, but are not limited to, the following:

[0133] Example 1: When the electric cargo box tailgate is opened and the multi-purpose ramp is extended to a stepped shape, if the ultrasonic radar detects an obstacle within 1.2m directly behind the multi-purpose ramp, a level one alarm will be sounded and the vehicle's infotainment system will display "Obstacle behind, extension of the ramp is prohibited," thus realizing the intelligent collision avoidance warning function.

[0134] Example 2: When the electric cargo box tailgate is opened and the multi-purpose ramp is extended to a ramp shape, if the ultrasonic radar detects an obstacle within 2m directly behind the multi-purpose ramp, a level one alarm will be sounded and the vehicle's infotainment system will display "Obstacle behind, ramp extension prohibited," thus realizing the intelligent collision avoidance warning function.

[0135] Example 3: When the multi-purpose ramp encounters an obstacle during its extension, the speed of the drive motor of the screw drive will change suddenly, and the frequency of the magnetic field change detected by the Hall sensor on the back of the motor will also change suddenly, so the pulse width it generates will also change suddenly; after receiving this change, the controller will control the motor to reverse slightly and stop working, realizing the functions of intelligent anti-collision and intelligent anti-pinch.

[0136] Example 4: When the multi-purpose ramp encounters an obstacle during folding, the drive motor speed will suddenly change, and the frequency of the magnetic field change detected by the Hall sensor on the back of the motor will also suddenly change, so the pulse width it generates will also suddenly change. After receiving this change, the controller will control the motor to reverse slightly and stop working, realizing the functions of intelligent anti-collision and intelligent anti-pinch.

[0137] Example 5: When the multi-purpose ramp encounters an obstacle during the rotation of the steps, the speed of the drive motor will suddenly change, and the frequency of the magnetic field change detected by the Hall sensor on the back of the motor will also suddenly change, so the pulse width it generates will also suddenly change. After receiving this change, the controller will control the motor to reverse slightly and stop working, thus realizing the intelligent anti-pinch function.

[0138] Alternatively, if it does not exist, execute step S130 to control the vehicle-mounted ramp to move based on the control signal, so as to control the vehicle-mounted ramp to be in the target state.

[0139] According to the above technical solution, this embodiment performs corresponding anti-pinch and anti-collision operations when an obstacle is detected during the movement of the vehicle-mounted ramp.

[0140] like Figure 8As shown, Figure 8 This is a schematic diagram of the hardware operating environment involved in the embodiments of the present invention.

[0141] It should be noted that, Figure 8 This can be a schematic diagram of the hardware operating environment of the control device for the vehicle-mounted ramp.

[0142] like Figure 8 As shown, the control device for the vehicle-mounted ramp may include: a processor 1001, such as a CPU; a memory 1005; a user interface 1003; a network interface 1004; and a communication bus 1002. The communication bus 1002 is used to establish communication between these components. The user interface 1003 may include a display screen or an input unit such as a keyboard; optionally, the user interface 1003 may also include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a Wi-Fi interface). The memory 1005 may be a high-speed RAM or a stable, non-volatile memory, such as a disk drive. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0143] Those skilled in the art will understand that Figure 8 The control device structure of the vehicle ramp shown does not constitute a limitation on the control device of the vehicle ramp, and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0144] like Figure 8 As shown, the memory 1005, which serves as a storage medium, may include an operating system, a network communication module, a user interface module, and a vehicle-mounted ramp program. The operating system is a program that manages and controls the hardware and software resources of the vehicle-mounted ramp control device, as well as the operation of the vehicle-mounted ramp program and other software or programs.

[0145] exist Figure 8 In the control device of the vehicle ramp shown, the user interface 1003 is mainly used to connect to the terminal and communicate with the terminal; the network interface 1004 is mainly used to connect to the back-end server and communicate with the back-end server; the processor 1001 can be used to call the vehicle ramp program stored in the memory 1005.

[0146] In this embodiment, the control device for the vehicle-mounted ramp includes: a memory 1005, a processor 1001, and a vehicle-mounted ramp program stored in the memory and executable on the processor, wherein:

[0147] When processor 1001 calls the vehicle ramp program stored in memory 1005, it performs the following operations:

[0148] Upon receiving a control command, the target state of the vehicle-mounted ramp is determined based on the control command.

[0149] Determine the control signal corresponding to the movement of the vehicle-mounted ramp to the target state;

[0150] The vehicle-mounted ramp is controlled to move based on the control signal to control the vehicle-mounted ramp to be in the target state, which includes a ramp state or a staircase state.

[0151] When processor 1001 calls the vehicle ramp program stored in memory 1005, it also performs the following operations:

[0152] During the movement of the vehicle-mounted ramp based on the control signal, the presence of obstacles is detected;

[0153] If present, an alarm signal is generated based on the distance between the vehicle-mounted ramp and the obstacle;

[0154] Alternatively, if not, perform the step of controlling the vehicle-mounted ramp to move based on the control signal to control the vehicle-mounted ramp to be in the target state.

[0155] When processor 1001 calls the vehicle ramp program stored in memory 1005, it also performs the following operations:

[0156] During the movement of the vehicle-mounted ramp based on the control signal, the rotational speed of the drive component of the vehicle-mounted ramp and the pulse signal of the obstacle detection sensor are acquired;

[0157] If neither the rotational speed nor the pulse signal meets the preset conditions, an obstacle is determined to exist.

[0158] When processor 1001 calls the vehicle ramp program stored in memory 1005, it also performs the following operations:

[0159] The rotation angle and rotation direction of the driving component are determined based on the rotation speed and the pulse signal;

[0160] Control commands for the drive component are generated based on the rotation angle and the rotation direction.

[0161] When processor 1001 calls the vehicle ramp program stored in memory 1005, it also performs the following operations:

[0162] The control signal includes one of the following: extension control signal, contraction control signal, folding control signal, and rotation control signal.

[0163] When processor 1001 calls the vehicle ramp program stored in memory 1005, it also performs the following operations:

[0164] The control commands include at least one of: button trigger commands and remote control commands.

[0165] This invention provides an embodiment of a vehicle-mounted ramp method. It should be noted that although the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than that shown here.

[0166] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0167] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0168] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0169] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1The steps of the function specified in one or more boxes.

[0170] It should be noted that any reference signs placed between parentheses in the claims should not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. The invention can be implemented by means of hardware comprising several different components and by means of a suitably programmed computer.

[0171] The unit claims enumerate several means, some of which may be embodied by the same hardware item. The use of the words first, second, and third, etc., does not indicate any order.

[0172] These words are interpreted as names.

[0173] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0174] 0 Obviously, those skilled in the art can make various modifications and variations to this invention without departing from the scope of the invention.

[0175] The spirit and scope of the invention are as follows: Thus, if these modifications and variations of the invention fall within the scope of the claims of the invention and their equivalents, the invention is also intended to include these modifications and variations.

Claims

1. A vehicle-mounted ramp, characterized in that, The vehicle-mounted ramp includes: A first ramp, comprising two oppositely arranged side plates and at least one step plate located between the two side plates and rotatably connected to the side plates. At least one second ramp, which is foldable and connected to the first ramp; A first driving component is connected to the first ramp and drives the first ramp to extend or retract. The first driving component is a screw transmission mechanism, and the self-locking function of the screw transmission mechanism allows the first ramp to be infinitely fixed during extension or retraction. The second driving component is located at the connection between the first ramp and the second ramp, and drives the second ramp to rotate relative to the first ramp. The third driving component is located at the connection between the side plate and the step plate, and drives the step plate to rotate, so that the step plate is parallel to the horizontal plane or at an angle to the horizontal plane. The third driving component includes a motor gear transmission mechanism and a stepped connecting rod. The motor gear transmission mechanism is connected to one of the stepped plates, and the stepped connecting rod is connected to all the stepped plates. When the motor gear transmission mechanism moves, the stepped connecting rod drives the other stepped plates to move synchronously, and makes all the stepped plates parallel to the horizontal plane or at an angle to the horizontal plane.

2. The vehicle-mounted ramp as described in claim 1, characterized in that, The first ramp also includes: A stepped beam and a rotating limiting component corresponding to the stepped plate are located between the two side plates; Specifically, when the step plate is parallel to the horizontal plane, the rotation limiting member is used to limit the maximum rotation angle of the step plate; when the step plate is at an angle to the horizontal plane, the step beam is used to support the step plate.

3. The vehicle-mounted ramp as described in claim 1, characterized in that, The first driving component includes: A helical transmission mechanism is located in the cavity of the vehicle-mounted ramp and is connected to the first ramp, driving the first ramp to expand or contract.

4. The vehicle-mounted ramp as described in claim 1, characterized in that, The vehicle-mounted ramp also includes: An obstacle detection sensor is used to detect whether there are obstacles during the unfolding or retraction of the first and second ramps.

5. The vehicle-mounted ramp as described in claim 4, characterized in that, The obstacle detection sensor includes: The vehicle includes a radar sensor and multiple Hall effect sensors, with the radar sensor located on the vehicle body and the Hall effect sensors located on the back of the first drive component and the second drive component, respectively.

6. The vehicle-mounted ramp as described in claim 1, characterized in that, The vehicle-mounted ramp also includes: The controller is communicatively connected to the first drive component and the second drive component. The controller receives control signals and controls the first drive component and / or the second drive component to work according to the control signals.

7. The vehicle-mounted ramp as described in claim 6, characterized in that, The vehicle-mounted ramp also includes: At least one control button, which communicates with the controller to control the movement of the first ramp and / or the second ramp.

8. The vehicle-mounted ramp as described in claim 1, characterized in that, The second ramp includes: A first sub-staircase and a second sub-staircase, wherein the first sub-staircase is foldably connected to the first sub-staircase, and the second sub-staircase is foldably connected to the opposite side plates of the first sub-staircase.

9. The vehicle-mounted ramp as described in claim 8, characterized in that, The vehicle-mounted ramp also includes: A fourth driving component is located at the connection between the first sub-slope and the second sub-slope, and drives the second sub-slope to rotate relative to the first sub-slope.

10. A vehicle for loading and unloading goods, characterized in that, The vehicle includes a passenger compartment, a vehicle ramp housing, and at least one vehicle ramp housed in the vehicle ramp housing, wherein the vehicle ramp is the vehicle ramp as described in any one of claims 1-9.

11. The vehicle as claimed in claim 10, wherein the vehicle-mounted ramp is located at at least one of the left rear side and right rear side of the vehicle compartment.

12. A control method for a vehicle-mounted ramp, characterized in that, Applied to the vehicle-mounted ramp as described in any one of claims 1 to 9, the method comprises: Upon receiving a control command, the target state of the vehicle-mounted ramp is determined based on the control command. Determine the control signal corresponding to the movement of the vehicle-mounted ramp to the target state; The vehicle-mounted ramp is controlled to move based on the control signal to control the vehicle-mounted ramp to be in the target state, which includes a ramp state or a staircase state.

13. The method as described in claim 12, characterized in that, The method further includes: During the movement of the vehicle-mounted ramp based on the control signal, the presence of obstacles is detected; If present, an alarm signal is generated based on the distance between the vehicle-mounted ramp and the obstacle; Alternatively, if not, perform the step of controlling the vehicle-mounted ramp to move based on the control signal to control the vehicle-mounted ramp to be in the target state.

14. The method as described in claim 13, characterized in that, The step of detecting the presence of obstacles during the movement of the vehicle-mounted ramp based on the control signal includes: During the movement of the vehicle-mounted ramp based on the control signal, the rotational speed of the drive component of the vehicle-mounted ramp and the pulse signal of the obstacle detection sensor are acquired; If neither the rotational speed nor the pulse signal meets the preset conditions, an obstacle is determined to exist.

15. The method as described in claim 14, characterized in that, After the step of generating an alarm signal based on the distance between the vehicle-mounted ramp and the obstacle, the method further includes: The rotation angle and rotation direction of the driving component are determined based on the rotation speed and the pulse signal; Control commands for the drive component are generated based on the rotation angle and the rotation direction.

16. The method according to any one of claims 12-15, characterized in that, The control signal includes one of the following: extension control signal, contraction control signal, folding control signal, and rotation control signal.

17. The method as described in claim 12, characterized in that, The control commands include at least one of: button trigger commands and remote control commands.

18. A control device for a vehicle-mounted ramp, characterized in that, The control device for the vehicle-mounted ramp includes: a memory, a processor, and a vehicle-mounted ramp program stored in the memory and executable on the processor, wherein the vehicle-mounted ramp program, when executed by the processor, implements the steps of the vehicle-mounted ramp method as described in any one of claims 12-17.

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