A vehicle door control method and system

Abstract

The application provides a door control method and system of a vehicle, and the method comprises the following steps: when the vehicle meets the door opening control condition, controlling the door motor to control the door movement of the vehicle with a first control parameter to open the door; detecting the door opening angle of the door in the process of opening the door; determining the door opening resistance of the door when the door opening angle of the door is in a first angle range; and controlling the door motor to control the door movement with a second control parameter when the door opening resistance of the door belongs to a first threshold range. The application can solve the problems in the prior art that the use of ultrasonic, millimeter wave and other sensors to realize the door opening warning function needs to increase the cost of sensors and the sensors have a certain blind area, some obstacles may not be detected, and there is a safety risk, and achieve the effect of ensuring the safety of the vehicle door opening.

Description

Technical Field

[0001] This application relates to the field of vehicle door control technology, and more specifically, to a vehicle door control method and system. Background Technology

[0002] Currently, most cars are designed with side-opening doors, which requires sufficient space on the side of the car (a fan-shaped space with the door's radius) to allow the door to open. If there are obstacles such as green belts, guardrails, or rocks on the side of the door during the opening process, they may scrape against the door and damage it; if there are pedestrians outside the car, a traffic accident may occur.

[0003] To address this issue, the automotive industry largely uses millimeter-wave and ultrasonic sensors to detect obstacles and provide corresponding warnings and alerts. However, using ultrasonic and millimeter-wave sensors to implement door opening warning functions has two drawbacks: 1. It requires additional sensor costs; 2. The sensors have blind spots, and some obstacles may go undetected, posing a safety risk. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a vehicle door control method and system that can solve the problems of existing technologies that use ultrasonic, millimeter wave and other sensors to realize door opening warning function, which require additional sensor costs and have certain blind spots, and may not be able to detect some obstacles, thus posing safety risks, by detecting the door and controlling the door motor.

[0005] In a first aspect, embodiments of this application provide a vehicle door control method, the method comprising: when the vehicle meets the door opening control conditions, controlling a door motor to control the movement of the vehicle door with a first control parameter to open the door; during the door opening process, detecting the door opening angle; when the door opening angle is detected to be within a first angle range, determining the door opening resistance; and when the door opening resistance is within a first threshold range, controlling the door motor to control the door movement with a second control parameter.

[0006] Optionally, the conditions for the vehicle to meet the door opening control include: receiving a door opening control command for controlling the opening of the door; and the vehicle's speed being zero.

[0007] Optionally, the step of detecting the door opening angle includes: detecting the number of rotations of the door motor; determining the door opening angle based on the number of rotations of the door motor, wherein the number of rotations of the door motor is positively correlated with the door opening angle.

[0008] Optionally, the opening angle of the car door can be determined as follows: whether the number of rotations of the car door motor is less than the preset maximum number of rotations, wherein the maximum number of rotations is the number of rotations of the car door motor when the car door is fully open; if the number of rotations of the car door motor is less than the preset maximum number of rotations, then the opening angle of the car door is determined to be within the first angle range.

[0009] Optionally, the method further includes: if the number of rotations of the door motor is not less than the preset maximum number of rotations, then controlling the door motor to stop working.

[0010] Optionally, the step of determining the door opening resistance includes: detecting the current value consumed by the door motor; determining the door opening resistance based on the current value consumed by the door motor, wherein the current value consumed by the door motor is positively correlated with the door opening resistance.

[0011] Optionally, the door opening resistance can be determined to be within the first threshold range by: determining whether the current consumed by the door motor is greater than a first preset current value and less than a second preset current value; if so, the door opening resistance is determined to be within the first threshold range.

[0012] Optionally, the first control parameter includes the first motor speed and the first motor driving force, and the second control parameter includes the second motor speed and the second motor driving force, wherein the first motor speed is greater than the second motor speed and the first motor driving force is less than the second motor driving force.

[0013] Optionally, the method further includes: if the current consumed by the door motor is greater than a second preset current value, controlling the door motor to stop working and playing a prompt voice message indicating that the door has encountered an obstacle through an alarm.

[0014] Secondly, embodiments of this application also provide a vehicle door control system, the system including a processor configured to perform the following processes: when the vehicle meets the door opening control conditions, controlling the door motor to control the movement of the vehicle door with a first control parameter to open the door; during the door opening process, detecting the door opening angle; when the door opening angle is detected to be within a first angle range, determining the door opening resistance; when the door opening resistance is within a first threshold range, controlling the door motor to control the door movement with a second control parameter.

[0015] Thirdly, embodiments of this application also provide an electronic device, including: a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor communicates with the memory via the bus. When the machine-readable instructions are executed by the processor, the steps of the vehicle door control method described above are performed.

[0016] Fourthly, embodiments of this application also provide a computer-readable storage medium storing a computer program that, when executed by a processor, performs the steps of the vehicle door control method described above.

[0017] This application provides a vehicle door control method and system that can solve the problems of existing technologies that use ultrasonic or millimeter-wave sensors to achieve door opening warning functions, which require additional sensor costs and have blind spots, making it impossible to detect some obstacles and posing safety risks. This method and system can achieve the effect of ensuring vehicle door opening safety.

[0018] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A flowchart illustrating a vehicle door control method provided in an embodiment of this application;

[0021] Figure 2 A flowchart for determining whether the opening angle of a car door is within a first angle range, provided as an embodiment of this application;

[0022] Figure 3 A schematic diagram of a vehicle door control system provided in an embodiment of this application;

[0023] Figure 4 This application provides a schematic diagram of the structure of an electronic device. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. Based on the embodiments of this application, every other embodiment obtained by those skilled in the art without inventive effort falls within the scope of protection of this application.

[0025] First, the applicable scenarios for this application will be introduced. This application can be applied to the field of vehicle door control technology.

[0026] Research has found that current car designs all feature side-opening doors, which require sufficient space on the side of the car (a fan-shaped space with the door's radius) to facilitate door opening. If there are obstacles such as green belts, guardrails, or rocks on the side of the door during the opening process, they may scrape against the door, causing damage; if there are pedestrians outside the car, a traffic accident may occur.

[0027] To address this issue, the automotive industry largely uses millimeter-wave and ultrasonic sensors to detect obstacles and provide corresponding warnings and alerts. However, using ultrasonic and millimeter-wave sensors to implement door opening warning functions has two drawbacks: 1. It requires additional sensor costs; 2. The sensors have blind spots, and some obstacles may go undetected, posing a safety risk.

[0028] Based on this, the embodiments of this application provide a vehicle door control method and system, which can solve the problems of existing technologies that use ultrasonic, millimeter wave and other sensors to realize door opening warning function, which require additional sensor costs and have certain blind spots, and some obstacles may not be detected, thus posing safety risks. The system can achieve the effect of ensuring vehicle door opening safety.

[0029] Please see Figure 1 , Figure 1 This is a flowchart illustrating a vehicle door control method provided in an embodiment of this application. Figure 1 As shown in the figure, the vehicle door control method provided in this application embodiment includes:

[0030] S101. When the vehicle meets the door opening control conditions, control the door motor to control the movement of the vehicle door with the first control parameter to open the door.

[0031] Specifically, the conditions for a vehicle to meet the door opening control requirements include: receiving a door opening control command to control the opening of the door; and the vehicle's speed being zero.

[0032] In this step, the vehicle's speed can be determined by the vehicle's speedometer, and the door opening command can be issued through the door opening control button located inside the vehicle.

[0033] S102. During the opening process of the car door, detect the opening angle of the car door.

[0034] Specifically, the steps for detecting the opening angle of a car door include: detecting the number of rotations of the door motor; and determining the opening angle of the door based on the number of rotations of the door motor.

[0035] Among them, the number of rotations of the door motor is positively correlated with the opening angle of the door.

[0036] For example, when the door motor rotates one revolution, the opening angle of the vehicle door increases by 5 degrees. The opening angle of the vehicle door can be determined by detecting the rotation angle of the door motor.

[0037] In this way, the opening angle of the car door can be determined by checking the number of rotations of the door motor.

[0038] S103. When the door opening angle is detected to be within the first angle range, determine the door opening resistance.

[0039] Please see Figure 2 , Figure 2 This is a flowchart illustrating how to determine whether the opening angle of a vehicle door is within a first angle range, as provided in an embodiment of this application. Figure 2 As shown in the figure, the flowchart for determining whether the opening angle of a car door is within a first angle range provided in this application embodiment includes:

[0040] S201. Determine whether the number of rotations of the door motor is less than the preset maximum number of rotations.

[0041] The maximum number of rotations refers to the number of rotations of the door motor when the door is fully open.

[0042] S202. If the number of rotations of the door motor is less than the preset maximum number of rotations, then the opening angle of the door is determined to be within the first angle range.

[0043] Optionally, the method further includes: if the number of rotations of the door motor is not less than the preset maximum number of rotations, then controlling the door motor to stop working.

[0044] The steps for determining the door opening resistance include: detecting the current consumed by the door motor; and determining the door opening resistance based on the current consumed by the door motor.

[0045] Among them, the current consumed by the door motor is positively correlated with the door opening resistance.

[0046] S104. When the door opening resistance is within the first threshold range, control the door motor to control the door movement with the second control parameter.

[0047] Specifically, the door opening resistance is determined to be within the first threshold range by: determining whether the current consumed by the door motor is greater than a first preset current value and less than a second preset current value; if so, the door opening resistance is determined to be within the first threshold range.

[0048] Optionally, the method further includes: if the current consumed by the door motor is greater than a second preset current value, controlling the door motor to stop working and playing a prompt voice message indicating that the door has encountered an obstacle through an alarm.

[0049] For example, when the current consumed by the door motor is greater than 20 amps, it is determined that the door has encountered an obstacle. At this time, the door is controlled to stop, ensuring the safety of opening the door.

[0050] The first control parameter includes the first motor speed and the first motor driving force, and the second control parameter includes the second motor speed and the second motor driving force.

[0051] Specifically, the speed of the first motor is greater than that of the second motor, and the driving force of the first motor is less than that of the second motor.

[0052] This allows the car door to easily push aside small obstacles and avoids the possibility of misjudging and stopping the door from opening when the car door is slightly deformed.

[0053] The vehicle door control method provided in this application can solve the problems of existing technologies that use ultrasonic or millimeter-wave sensors to achieve door opening warning functions, which require additional sensor costs and have blind spots, making it impossible to detect some obstacles and posing safety risks. This method can achieve the effect of ensuring vehicle door opening safety.

[0054] Based on the same inventive concept, this application also provides a vehicle door control system corresponding to the vehicle door control method. Since the principle of the system in this application is similar to the vehicle door control method described above in this application, the implementation of the system can refer to the implementation of the method, and the repeated parts will not be described again.

[0055] Please see Figure 3 , Figure 3 This is a schematic diagram of a vehicle door control system provided in an embodiment of this application. Figure 3 As shown, the vehicle door control system includes: a processor 301, a door motor rotation count detection module 302, a door motor current consumption detection module 303, a door motor control module 304, a door motor 307, a voice prompt module 305, and an audio system 306.

[0056] Specifically, when the processor 301 determines that the vehicle meets the door opening control conditions, the door motor control module 304 controls the door motor 307 to control the movement of the vehicle door with the first control parameters in order to open the door.

[0057] During the opening of the car door, the door opening angle is detected by the door motor rotation count detection module 302.

[0058] When the door motor rotation count detection module 302 detects that the door opening angle is within the first angle range, the door motor 307 is detected by the current consumption detection module 303 to determine the door opening resistance.

[0059] When the door opening resistance is within the first threshold range, the processor 301 controls the door motor 307 to control the door movement with the second control parameters through the door motor control module 304.

[0060] Optionally, the processor 301 determines that the vehicle meets the door opening control conditions by: receiving a door opening control command for controlling the door to open; and the vehicle's speed being zero.

[0061] Optionally, the steps of the door motor 307 rotation count detection module 302 in detecting the door opening angle include: detecting the number of rotations of the door motor; and determining the door opening angle based on the number of rotations of the door motor 307, wherein the number of rotations of the door motor 307 is positively correlated with the door opening angle.

[0062] Optionally, the processor 301 determines whether the opening angle of the car door is within the first angle range by: determining whether the number of rotations of the car door motor 307 is less than the preset maximum number of rotations, wherein the maximum number of rotations is the number of rotations of the car door motor 307 when the car door is in the fully open state; if the number of rotations of the car door motor 307 is less than the preset maximum number of rotations, then the opening angle of the car door is determined to be within the first angle range.

[0063] Optionally, the processor 301 is also configured to perform the following process: if the number of rotations of the door motor 307 is not less than the preset maximum number of rotations, then control the door motor 307 to stop working.

[0064] Optionally, the step of the door motor current consumption detection module 303 determining the door opening resistance includes: detecting the current consumption of the door motor 307; and determining the door opening resistance based on the current consumption of the door motor 307, wherein the current consumption of the door motor is positively correlated with the door opening resistance.

[0065] Optionally, the processor 301 determines whether the door opening resistance falls within the first threshold range by: determining whether the current consumed by the door motor is greater than a first preset current value and less than a second preset current value; if so, it determines that the door opening resistance falls within the first threshold range.

[0066] Optionally, the first control parameter includes the first motor speed and the first motor driving force, and the second control parameter includes the second motor speed and the second motor driving force, wherein the first motor speed is greater than the second motor speed and the first motor driving force is less than the second motor driving force.

[0067] Optionally, the processor 301 is also configured to perform the following process: if the current consumed by the door motor 307 is greater than a second preset current value, control the door motor 307 to stop working and play a prompt voice message indicating that the door has encountered an obstacle through the alarm.

[0068] The vehicle door control system provided in this application can solve the problems of existing technologies that use ultrasonic or millimeter-wave sensors to achieve door opening warning functions, which require additional sensor costs and have blind spots, making it impossible to detect some obstacles and posing safety risks. This system can achieve the effect of ensuring vehicle door opening safety.

[0069] Please see Figure 4 , Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 4 As shown, the electronic device 400 includes a processor 410, a memory 420, and a bus 430.

[0070] The memory 420 stores machine-readable instructions executable by the processor 410. When the electronic device 400 is running, the processor 410 communicates with the memory 420 via the bus 430. When the machine-readable instructions are executed by the processor 410, they can perform the operations described above. Figure 1 as well as Figure 2 The steps of the vehicle door control method in the illustrated method embodiment can be found in the method embodiment for specific implementation, and will not be repeated here.

[0071] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, can perform the above-described actions. Figure 1 as well as Figure 2 The steps of the vehicle door control method in the illustrated method embodiment can be found in the method embodiment for specific implementation, and will not be repeated here.

[0072] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0073] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0074] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0075] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0076] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a processor-executable, non-volatile, computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0077] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The scope of protection of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the scope of the technology disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for controlling vehicle doors, characterized in that, The method includes: When the vehicle meets the door opening control conditions, the door motor is controlled to move the vehicle door using the first control parameter in order to open the door. During the opening process of the car door, the opening angle of the car door is detected; When the door opening angle is detected to be within the first angle range, the door opening resistance is determined; When the door opening resistance is within the first threshold range, the door motor is controlled to control the door movement with the second control parameter; The first control parameter includes the first motor speed and the first motor driving force, and the second control parameter includes the second motor speed and the second motor driving force, wherein the first motor speed is greater than the second motor speed and the first motor driving force is less than the second motor driving force.

2. The method according to claim 1, characterized in that, The conditions for a vehicle to meet door opening control include: Received a door opening control command to control the opening of the vehicle door; The vehicle's speed is zero.

3. The method according to claim 1, characterized in that, The steps for testing the opening angle of a car door include: Detect the number of rotations of the door motor; The door opening angle is determined based on the number of rotations of the door motor, and there is a positive correlation between the number of rotations of the door motor and the door opening angle.

4. The method according to claim 3, characterized in that, Determine whether the door opening angle is within the first angle range using the following method: Determine whether the number of rotations of the door motor is less than the preset maximum number of rotations, wherein the maximum number of rotations is the number of rotations of the door motor when the door is in the fully open state; If the number of rotations of the door motor is less than the preset maximum number of rotations, then the door opening angle is determined to be within the first angle range.

5. The method according to claim 4, characterized in that, The method further includes: If the number of rotations of the door motor is not less than the preset maximum number of rotations, then the door motor will stop working.

6. The method according to claim 1, characterized in that, The steps to determine the opening resistance of a car door include: Detect the current consumed by the door motor; The door opening resistance is determined based on the current consumed by the door motor, and the current consumed by the door motor is positively correlated with the door opening resistance.

7. The method according to claim 6, characterized in that, The following method is used to determine whether the door opening resistance falls within the first threshold range: Determine whether the current consumed by the door motor is greater than the first preset current value and less than the second preset current value; If so, then the door opening resistance is determined to be within the first threshold range.

8. The method according to claim 7, characterized in that, The method further includes: If the current consumed by the door motor exceeds the second preset current value, the door motor will stop working, and an alarm will play a warning voice indicating that the door has encountered an obstacle.

9. A vehicle door control system, characterized in that, The system includes a processor configured to perform the following processes: When the vehicle meets the door opening control conditions, the door motor is controlled to move the vehicle door using the first control parameter in order to open the door. During the opening process of the car door, the opening angle of the car door is detected; When the door opening angle is detected to be within the first angle range, the door opening resistance is determined; When the door opening resistance is within the first threshold range, the door motor is controlled to control the door movement with the second control parameter; The first control parameter includes the first motor speed and the first motor driving force, and the second control parameter includes the second motor speed and the second motor driving force, wherein the first motor speed is greater than the second motor speed and the first motor driving force is less than the second motor driving force.

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