An automatic door opening and closing system for a logistics vehicle

Abstract

The application provides a logistics vehicle automatic door opening and closing system, and relates to the technical field of logistics vehicle door control. After the vehicle reaches the loading and unloading site, the driver does not need to get off the vehicle, and only needs to operate the opening and closing button to realize automatic opening and closing of the vehicle door, reduces manual operation steps, speeds up the loading and unloading node speed, and improves the logistics operation efficiency; the application detects the distance of the obstacle outside the vehicle in real time through an ultrasonic radar and an infrared transmitting and receiving device, and can immediately stop the action when an object in the opening and closing process approaches the dangerous range, effectively avoids safety accidents such as vehicle door bumping and person clamping, and guarantees the operation safety; taking the BCM vehicle body controller as the core, combined with the vehicle parking state, radar detection signals and the like, the unlocking, driving of the hinge motor, locking, double flashing and the like are automatically completed, the control logic is perfect, and the degree of automation is high.

Description

Technical Field

[0001] This invention relates to the field of logistics vehicle door control technology, and more specifically, to an automatic door opening and closing system for logistics vehicles. Background Technology

[0002] Currently, in urban logistics vehicle loading and unloading operations, the opening and closing of vehicle doors generally relies on manual operation, requiring the driver or staff to get out of the vehicle and manually complete the actions. This method has drawbacks: on the one hand, manually opening and closing doors increases operational steps, reduces loading and unloading efficiency, and prolongs logistics turnaround time; on the other hand, manual operation is easily affected by the vehicle's surrounding environment and the operator's habits, posing safety hazards such as door collisions and people being trapped. Therefore, we have proposed an improvement, namely an automatic door opening and closing system for logistics vehicles. Summary of the Invention

[0003] This invention provides an automatic door opening and closing system for logistics vehicles, including: a BCM body controller, an ultrasonic radar, a door opening and closing button, a hinge motor, and an infrared beam detector; The ultrasonic radar, door switch button, and infrared beam detector are respectively connected to the BCM body controller. The hinge motor is electrically connected to the BCM body controller and is used to drive the logistics vehicle door to open or close.

[0004] As a preferred technical solution of this application, the BCM body controller is used to control the ECU, receive signals and control the movement of the hinge motor; Ultrasonic radar detects the distance to objects to determine the conditions for opening and closing the car door; Infrared beam detectors are used to locate vehicle positions and scan object information; The door switch button is used to start or stop the automatic door opening and closing process; Hinge motors are used to perform the opening or closing action of car doors.

[0005] As a preferred technical solution of this application, the BCM body controller is also connected to an in-vehicle intelligent entertainment screen and a surround view camera, which are used to alert to safety risks and display the external environment of the vehicle.

[0006] As a preferred technical solution of this application, the BCM body controller is also connected to the vehicle's hazard lights, and controls the hazard lights to be activated when the doors are opened or closed.

[0007] As a preferred technical solution of this application, the hinge motor includes a left hinge motor and a right hinge motor, which respectively drive the left and right hinges of the car door to move.

[0008] As a preferred technical solution of this application, the following steps are included: When the driver presses the door switch button, the BCM body controller receives the start command and checks whether the vehicle is in a parked state; if it is not in a parked state, it prompts the driver to park; if it is in a parked state, it proceeds to the next step. The BCM body controller reads the obstacle distance signals from the ultrasonic radar and infrared beam detector to determine whether the conditions for safe door opening are met. If not, it issues a risk warning, activates the surround-view camera, and terminates the opening attempt. If the conditions are met, it controls the hazard lights to turn on, unlocks the door, and drives the hinge motor to perform the door opening action. If an object is detected entering the danger zone during the door opening process, the BCM body controller will stop the hinge motor until the object moves away and then resume operation; after the door is opened, wait for the door closing command. The driver presses the door switch button again, and the BCM body controller re-detects the distance to the obstacle. If the safety conditions are met, it drives the hinge motor to close the door. If an obstacle approaches during the closing process, it will pause and continue after the obstacle moves away. After the door is closed, the BCM body controller locks the door and turns off the hazard lights, completing the door opening and closing process.

[0009] As a preferred technical solution of this application, when the door opening and closing conditions are met, the BCM body controller issues a risk warning through the in-vehicle intelligent entertainment screen and activates the surround view camera for the driver to view the external environment.

[0010] As a preferred technical solution of this application, the BCM body controller determines the safe opening / closing conditions of the door based on the following: there are no obstacles in the door opening path and the distance of the obstacle is greater than a preset safety threshold.

[0011] As a preferred technical solution of this application, if an obstacle remains within a dangerous range for more than a preset time during the opening or closing of the vehicle door, the BCM body controller terminates the action and maintains the current state.

[0012] As a preferred technical solution of this application, the BCM body controller is also connected to a buzzer. When danger is detected during the opening and closing of the door, the opening and closing conditions are not met, or the action is terminated, the buzzer emits a warning sound of different frequencies, which forms a linkage warning with the text prompts and hazard light prompts on the in-vehicle intelligent entertainment screen.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: After the vehicle arrives at the loading and unloading location, the driver does not need to get out of the vehicle; simply operating a switch button will automatically open and close the doors, reducing manual operation steps, speeding up loading and unloading, and improving logistics efficiency. This application uses ultrasonic radar and infrared beam detectors to detect the distance to obstacles outside the vehicle in real time. If an object approaches the danger zone during the door opening and closing process, the action can be stopped immediately, effectively avoiding safety accidents such as door collisions and people being trapped, and ensuring operational safety. With the BCM body controller as the core, combined with the vehicle's parking status, radar detection signals, and other comprehensive judgments, the system automatically completes actions such as unlocking, driving the hinge motor, locking, and hazard warning flashing. The control logic is sophisticated and the degree of automation is high. Attached Figure Description

[0014] Figure 1 A schematic diagram of the automatic door opening and closing system for logistics vehicles provided in this application; Figure 2 A partial schematic diagram of the automatic door opening and closing system for logistics vehicles provided in this application; Figure 3 A flowchart illustrating the use of the automatic door opening and closing system for logistics vehicles provided in this application. Detailed Implementation

[0015] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0016] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0017] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0018] For an example, please refer to... Figures 1-3 An automatic door opening and closing system for a logistics vehicle includes: a BCM body controller, an ultrasonic radar, a door opening and closing button, a hinge motor, and an infrared beam detector. The ultrasonic radar, door switch button, and infrared beam detector are connected to the BCM body controller via signal transmission. The hinge motor is electrically connected to the BCM body controller. The hinge motor is used to drive the logistics vehicle door to open or close. As the core control unit, the BCM body controller can uniformly receive and process signals from various components and issue action commands, avoiding the problem of poor coordination among multiple control units. The direct electrical connection reduces signal transmission loss and ensures rapid action response.

[0019] Furthermore, the BCM body controller is used to control the ECU, receive signals, and control the movement of the hinge motor; Ultrasonic radar detects the distance to objects to determine the conditions for opening and closing the car door; Infrared beam detectors are used to locate vehicle positions and scan object information; ultrasonic radar works in conjunction with infrared beam detectors to detect object distance and scan information, improving the comprehensiveness of obstacle detection, avoiding blind spots of single detection methods, and reducing the risk of collisions and pinching injuries during door opening and closing. The door switch button is used to start or stop the automatic door opening and closing process; the design of the door switch button retains the convenience of manual control, while also allowing for the termination of abnormal processes at any time, thus improving the operational safety and flexibility of the system. Hinge motors are used to perform the opening or closing action of car doors.

[0020] Furthermore, the BCM body controller is also connected to an in-vehicle intelligent entertainment screen and a surround-view camera to alert drivers to safety risks and display the external environment. Visual cues are more intuitive than single sound cues and can reduce driver judgment errors. The surround-view camera covers the entire field of vision outside the vehicle, effectively compensating for the limitations of the driver's naked eye observation and avoiding collisions caused by blind spots.

[0021] Furthermore, the BCM body controller is also connected to the vehicle's hazard lights, controlling the hazard lights to activate when the doors are opened or closed. Hazard lights are a universal warning signal for vehicles, highly recognizable, and can quickly attract the attention of people and vehicles in the vicinity, clearly indicating the vehicle's operating status and preventing people in the vicinity from approaching the dangerous area near the doors due to a lack of awareness.

[0022] Furthermore, the hinge motor includes a left hinge motor and a right hinge motor, which drive the left and right hinges of the door respectively. The left and right hinge motors are set independently and can control the opening and closing of the left and right doors respectively, realizing independent operation of a single door or simultaneous operation of both doors, adapting to different loading and unloading scenarios of logistics vehicles (such as single-side loading and unloading, and simultaneous loading and unloading of both sides), improving the flexibility and adaptability of the system.

[0023] Furthermore, this includes the following steps: When the driver presses the door switch button, the BCM body controller receives the start command and checks whether the vehicle is in a parked state. If it is not in a parked state, it prompts the driver to park; if it is in a parked state, it proceeds to the next step. Opening the door while the logistics vehicle is in motion poses a great safety hazard. Pre-parking detection can enforce standardized operating procedures, reduce the risks caused by violations, and ensure that door opening and closing actions are only performed in safe scenarios. The Body Control Module (BCM) reads obstacle distance signals from ultrasonic radar and infrared beam detectors to determine if the conditions for safe door opening are met. If not, it issues a risk warning, activates the surround-view camera, and terminates the opening attempt. If the conditions are met, it activates the hazard lights, unlocks the door, and drives the hinge motor to open the door. This proactive detection reduces safety hazards and minimizes property damage and personal injury from collisions. Furthermore, a standardized process design guides drivers to operate correctly, reducing human error. During the door opening process, if an object is detected entering the danger zone, the BCM body controller stops the hinge motor until the object is far away before resuming operation; after the door is opened, it waits for the closing command; this achieves dynamic safety protection during the door opening process, avoiding collisions and pinching accidents caused by sudden personnel or objects approaching during the opening process, thus improving the safety of the door opening and closing process; the hinge motor stops and waits for the object to move away before resuming operation, which not only ensures safety but also eliminates the need to restart the process, improving operational efficiency; waiting for the closing command after the door is opened can avoid cargo pinching or personnel accidental contact caused by automatic door closing, adapting to the long-term operation requirements of loading and unloading logistics vehicles; The driver presses the door switch button again, and the BCM body controller re-detects the distance to the obstacle. If the safety conditions are met, the hinge motor is activated to close the door. If an obstacle approaches during the closing process, the process will pause and continue when the obstacle moves away. The secondary detection in the closing process can cope with the dynamic changes in the environment during loading and unloading, avoid safety hazards caused by the movement of obstacles, and improve the user experience by maintaining a consistent response mechanism, thereby reducing efficiency losses caused by process interruptions. After the doors are closed, the BCM body controller locks the doors and turns off the hazard lights, completing the door opening and closing process. Automatic locking eliminates the safety hazards caused by people forgetting to lock the doors, while automatically turning off the hazard lights takes into account both energy saving and the rationality of surrounding warning.

[0024] Furthermore, when the conditions for opening and closing the doors are met, the BCM body controller issues a risk warning through the in-vehicle intelligent entertainment screen and activates the surround-view camera for the driver to view the external environment. Meeting the safety conditions does not mean that there are no potential risks at all. The dual reminders can strengthen the driver's safety awareness and avoid accidents caused by negligence. The visual prompts are also more in line with the driver's operating habits.

[0025] Furthermore, the BCM body controller determines the safe opening / closing conditions of the doors based on the following criteria: no obstacles in the door opening path and the distance of the obstacles is greater than a preset safety threshold. The unified judgment standard can reduce the probability of system misjudgment, the design of the preset threshold enhances the adaptability of the system, and the clear logic also provides convenience for later maintenance and reduces the difficulty of maintenance.

[0026] Furthermore, during the opening or closing of the door, if an obstacle remains within the danger zone for more than a preset time, the BCM body controller will terminate the action and maintain the current state; this avoids the motor from operating under continuous load due to the obstacle remaining within the danger zone for an extended period, protecting the hinge motor, extending the motor's lifespan, and reducing the probability of system failure.

[0027] Furthermore, the BCM body controller is also connected to a buzzer. When danger is detected during the door opening and closing process, the door opening and closing conditions are not met, or the action is terminated, the buzzer emits a warning sound at different frequencies, which forms a linkage warning with the text prompts on the in-vehicle intelligent entertainment screen and the hazard light warnings. Single visual prompts are easily overlooked in noisy environments, but sound prompts can make up for this deficiency. Dual warnings ensure that the prompt information is effectively transmitted, and the different frequencies of the prompt sounds can help the driver quickly locate the problem and improve the efficiency of emergency handling.

[0028] The automatic door opening and closing system for logistics vehicles provided by this invention is used as follows: Once the vehicle arrives at the loading point, the driver presses the door open / close button. The BCM (Body Control Module) receives the start command and identifies the vehicle's current status. If the vehicle is not in a parked state, the driver is prompted to park. If it is in a parked state, the system begins operation. It then reads the distance information from the ultrasonic radar and infrared beam detector. If the conditions for safe door opening are not met, the BCM sends a warning to the smart entertainment screen, indicating a safety risk, and activates the surround-view camera to allow the driver to check the outside environment. Simultaneously, the BCM stops the current smart opening operation, waiting for the driver to press the door open / close button again. If the distance information meets the conditions for safe door opening without any impact, the process continues. The BCM activates its hazard lights to alert nearby personnel, then unlocks the door and controls the hinge motor to open it until it is fully open. During door closing, if the ultrasonic radar detects an object, the system will detect the object. When the ultrasonic radar and infrared beam detectors detect an object approaching the vehicle's danger zone, the BCM (Body Control Module) stops the hinge motor until the radar indicates the object is far away. The hinge motor then resumes operation. Once the hinge motor indicates the door is open, the opening process is complete. After loading, the driver presses the door switch button again. The ultrasonic radar and infrared beam detectors then read the object distance information. If the closing conditions are not met, the system initiates a non-compliance process. The smart entertainment screen displays a safety warning about the risk of closing the door, activates the surround-view camera, and pauses the subsequent process. After the driver confirms the surrounding environment, they press the door switch button again. The BCM controls the hinge motor to close the door. If an object approaches during the closing process, the process stops until the object leaves. Once the door is fully closed, the BCM locks the door and turns off the hazard lights. The smart entertainment screen displays a closing completion message, and the entire system process is complete.

[0029] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. An automatic door opening and closing system for a logistics vehicle, characterized in that, include: BCM body control unit, ultrasonic radar, door switch buttons, hinge motor, infrared beam detector; The ultrasonic radar, door switch button, and infrared beam detector are respectively connected to the BCM body controller. The hinge motor is electrically connected to the BCM body controller and is used to drive the logistics vehicle door to open or close.

2. The automatic door opening and closing system for logistics vehicles according to claim 1, characterized in that, The BCM body controller is used to control the ECU, receive signals, and control the movement of the hinge motor. Ultrasonic radar detects the distance to objects to determine the conditions for opening and closing the car door; Infrared beam detectors are used to locate vehicle positions and scan object information; The door switch button is used to start or stop the automatic door opening and closing process; Hinge motors are used to perform the opening or closing action of car doors.

3. The automatic door opening and closing system for logistics vehicles according to claim 1, characterized in that, The BCM body controller is also connected to an in-vehicle intelligent entertainment screen and a surround-view camera, which are used to alert to safety risks and display the external environment.

4. The automatic door opening and closing system for logistics vehicles according to claim 1, characterized in that, The BCM body controller is also connected to the vehicle's hazard lights, and controls the hazard lights to activate as a warning when the doors are opened or closed.

5. The automatic door opening and closing system for logistics vehicles according to claim 1, characterized in that, The hinge motor includes a left hinge motor and a right hinge motor, which drive the left and right hinges of the car door to move respectively.

6. The automatic door opening and closing system for logistics vehicles according to claim 1, characterized in that, Includes the following steps: When the driver presses the door switch button, the BCM body controller receives the start command and checks whether the vehicle is in a parked state; if it is not in a parked state, it prompts the driver to park; if it is in a parked state, it proceeds to the next step. The BCM body controller reads the obstacle distance signals from the ultrasonic radar and infrared beam detector to determine whether the conditions for safe door opening are met. If not, it issues a risk warning, activates the surround-view camera, and terminates the opening attempt. If the conditions are met, it controls the hazard lights to turn on, unlocks the door, and drives the hinge motor to perform the door opening action. If an object is detected entering the danger zone during the door opening process, the BCM body controller will stop the hinge motor until the object moves away and then resume operation; after the door is opened, wait for the door closing command. The driver presses the door switch button again, and the BCM body controller re-detects the distance to the obstacle. If the safety conditions are met, it drives the hinge motor to close the door. If an obstacle approaches during the closing process, it will pause and continue after the obstacle moves away. After the door is closed, the BCM body controller locks the door and turns off the hazard lights, completing the door opening and closing process.

7. The automatic door opening and closing system for logistics vehicles according to claim 6, characterized in that, When the conditions for opening and closing the doors are met, the BCM body controller issues a risk warning through the in-vehicle intelligent entertainment screen and activates the surround-view camera for the driver to view the external environment.

8. The automatic door opening and closing system for logistics vehicles according to claim 6, characterized in that, The BCM body controller determines the safe opening / closing conditions of the doors based on the following criteria: there are no obstacles in the door opening path and the distance of the obstacles is greater than a preset safety threshold.

9. The automatic door opening and closing system for logistics vehicles according to claim 6, characterized in that, If an obstacle remains within a dangerous range for more than a preset time during the opening or closing of a vehicle door, the BCM body controller will terminate the action and maintain the current state.

10. The automatic door opening and closing system for logistics vehicles according to claim 1, characterized in that, The BCM body controller is also connected to a buzzer. When danger is detected during the opening and closing of the door, the opening and closing conditions are not met, or the action is terminated, the buzzer emits a warning sound at different frequencies, which forms a linkage warning with the text prompts and hazard light prompts on the in-vehicle intelligent entertainment screen.

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