Anti-pinch control method and system for vehicle door handle
Through the cooperation of the capacitive sensor and the timer, the movement of the hidden door handle is detected and controlled in real time, the problem of hidden door handle clamping is solved, and the balance of safety and convenience is achieved, ensuring the normal locking of the vehicle.
Patent Information
- Application Number
- CN202510845212.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-23
- Publication Date
- 2025-09-05
AI Technical Summary
The hidden door handle may clamp the hand during retraction, which poses safety risks. How to improve the safety of use.
The internal capacitive sensor detects obstacles in real time, and sets a timer to control the movement of the vehicle door handle, including attempts to retract, expand and force retract, combining multiple conditions and the timer's timing logic to ensure safety and convenience.
It effectively prevents the door handle from pinching objects or people during the retraction process, improves safety and convenience, ensures the normal locking of the vehicle, and enhances overall safety.
Smart Images
Figure CN120592519A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of vehicle technology, and in particular to an anti-pinch control method and system for a vehicle door handle. Background Art
[0002] With the continuous development of intelligent vehicles, more and more vehicles are using hidden door handles to improve their aesthetics. When the door is not open, the hidden door handle is flush with the outside of the door. When the user opens the door, the hidden door handle unfolds and protrudes from the outside of the door, allowing the user to pull the door handle to open the door. However, hidden door handles pose certain safety risks. During the process of retracting from protruding to flush with the outside of the door, if a hand is caught between the door handle and the outside of the door, the retraction action can pinch the hand, causing danger. Therefore, how to implement anti-pinch control for vehicle door handles to improve the safety of hidden door handles is a problem that needs to be solved. Summary of the Invention
[0003] The present invention provides a method and system for controlling the anti-pinch function of a vehicle door handle, thereby improving the safety of the vehicle door handle. The technical solution is as follows:
[0004] In one aspect, a method for controlling anti-pinch of a vehicle door handle is provided, the method comprising:
[0005] In response to a central locking command, determining whether an interior capacitive sensor within a vehicle door handle detects an obstacle;
[0006] When the internal capacitance sensor detects an obstacle, starting a first timer to start timing;
[0007] When the timing duration of the first timer has not reached a first preset duration, in response to the internal capacitance sensor detecting that the obstacle has been removed, controlling the vehicle door handle to perform an attempted retraction action;
[0008] During the process of performing the attempted retraction action, in response to the internal capacitance sensor detecting an obstacle, controlling the vehicle door handle to perform an extension action;
[0009] Starting a second timer to start timing, and when the timing duration of the second timer reaches a second preset duration, controlling the vehicle door handle to perform the attempted retraction action again;
[0010] When the number of times the attempted retraction action is performed reaches a preset number threshold, the vehicle door handle is controlled to perform a forced retraction action.
[0011] In some embodiments, during the process of performing the attempted retraction action, in response to the internal capacitance sensor detecting an obstacle, controlling the vehicle door handle to perform an extension action includes:
[0012] When the vehicle door handle is controlled to start performing the attempted retraction action, a third timer is started to count, and the timing duration of the third timer indicates the execution duration of the attempted retraction operation;
[0013] When the timing duration of the third timer has not reached a third preset duration, in response to the internal capacitance sensor detecting an obstacle, controlling the vehicle door handle to perform the deployment action;
[0014] The method further comprises:
[0015] When the timing duration of the third timer reaches the third preset duration, the vehicle door handle is controlled to perform the forced retraction action.
[0016] In some embodiments, starting a second timer to start timing, and when the timing duration of the second timer reaches a second preset duration, controlling the vehicle door handle to perform the attempted retraction action again includes:
[0017] Starting the second timer to measure time and determine whether the internal capacitance sensor detects an obstacle;
[0018] In a case where the internal capacitance sensor continues to fail to detect an obstacle, in response to the timing duration of the second timer reaching the second preset duration, the vehicle door handle is controlled to perform the attempted retraction action again.
[0019] In some embodiments, the method further comprises:
[0020] When the internal capacitance sensor detects an obstacle, starting a fourth timer to start timing;
[0021] If the fourth timer has not reached a fourth preset time, in response to the internal capacitance sensor detecting that the obstacle has been removed, controlling the vehicle door handle to attempt to retract again;
[0022] When the obstacle is not detected to be removed within the fourth preset time period, the vehicle door handle is controlled to perform the forced retraction action.
[0023] In some embodiments, the method further comprises:
[0024] When the obstacle is not detected to be removed within the first preset time period, the vehicle door handle is controlled to perform the forced retraction action.
[0025] In some embodiments, the method further comprises:
[0026] In a case where the internal capacitance sensor does not detect an obstacle, the vehicle door handle is controlled to perform a trial retraction action.
[0027] In some embodiments, the central locking command is generated under any of the following conditions:
[0028] Receiving a locking request signal sent by a remote control key;
[0029] Receiving a locking request signal sent by the central locking switch;
[0030] The current vehicle speed is greater than the preset speed threshold;
[0031] It is detected that the remote control key is outside a target area, where the target area is associated with a current position of the vehicle.
[0032] In another aspect, an anti-pinch control device for a vehicle door handle is provided, the device comprising:
[0033] a determination module for determining, in response to a central locking lock command, whether an internal capacitive sensor in a vehicle door handle detects an obstacle;
[0034] a timing module, configured to start a first timer to start timing when the internal capacitance sensor detects an obstacle;
[0035] a control module, configured to, if the timing duration of the first timer has not reached a first preset duration, control the vehicle door handle to perform an attempted retraction action in response to the internal capacitance sensor detecting that the obstacle has been removed;
[0036] The control module is further configured to control the vehicle door handle to perform an extension action in response to the inner capacitive sensor detecting an obstacle during the attempted retraction action;
[0037] The control module is further configured to start a second timer for timing, and when the timing duration of the second timer reaches a second preset duration, control the vehicle door handle to perform the attempted retraction action again;
[0038] The control module is further configured to control the vehicle door handle to perform a forced retraction action when the number of times the attempted retraction action is performed reaches a preset threshold number.
[0039] In some embodiments, the control module is also used to start a third timer for timing when controlling the vehicle door handle to start performing the attempted retraction action, and the timing duration of the third timer indicates the execution duration of the attempted retraction operation; when the timing duration of the third timer has not reached a third preset duration, in response to the internal capacitance sensor detecting an obstacle, control the vehicle door handle to perform the deployment action; when the timing duration of the third timer reaches the third preset duration, control the vehicle door handle to perform the forced retraction action.
[0040] In some embodiments, the control module is also used to start the second timer to determine whether the internal capacitance sensor detects an obstacle; if the internal capacitance sensor continues to fail to detect an obstacle, in response to the timing of the second timer reaching the second preset time, the vehicle door handle is controlled to perform the attempted retraction action again.
[0041] In some embodiments, the control module is further used to start a fourth timer for timing when the internal capacitance sensor detects an obstacle; in response to the internal capacitance sensor detecting that the obstacle has been removed, controlling the vehicle door handle to attempt to retract again when the timing duration of the fourth timer has not reached a fourth preset duration; and in the event that the obstacle is not detected to have been removed within the fourth preset duration, controlling the vehicle door handle to perform the forced retraction action.
[0042] In some embodiments, the control module is further configured to control the vehicle door handle to perform the forced retraction action when no obstacle is detected to be removed within the first preset time period.
[0043] In some embodiments, the control module is further configured to control the vehicle door handle to perform an attempted retraction action when the internal capacitance sensor does not detect an obstacle.
[0044] In some embodiments, the central locking command is generated under any of the following conditions: receiving a locking request signal sent by the remote control key; receiving a locking request signal sent by the central locking switch; the current vehicle speed is greater than a preset speed threshold; detecting that the remote control key is outside a target area, and the target area is associated with the current vehicle position.
[0045] In another aspect, a vehicle door handle anti-pinch control system is provided, the system comprising a vehicle body domain controller and a vehicle door handle;
[0046] The vehicle body domain controller is used to load and execute at least one computer program, and the at least one computer program is used to implement the anti-pinch control method of the vehicle door handle in the embodiment of the present application;
[0047] The vehicle door handle includes an internal capacitance sensor and a door handle actuator. The internal capacitance sensor is used to detect obstacles in real time, and the door handle actuator is used to receive instructions from the body domain controller to control the vehicle door handle to perform actions.
[0048] In some embodiments, the system further includes a remote control key, a vehicle speed module, and a central locking switch;
[0049] The body controller generates a central locking command under any of the following conditions: receiving a locking request signal sent by the remote control key; receiving a locking request signal sent by the central locking switch; determining, based on the vehicle speed module, that the current vehicle speed is greater than a preset speed threshold; detecting that the remote control key is outside a target area, and the target area is associated with the current vehicle position.
[0050] On the other hand, a body domain controller is provided, which includes a processor and a memory, the memory being used to store at least one computer program, and the at least one computer program being loaded and executed by the processor to implement the anti-pinch control method for the vehicle door handle in an embodiment of the present application.
[0051] On the other hand, a computer-readable storage medium is provided, in which at least one computer program is stored. The at least one computer program is loaded and executed by a processor to implement the anti-pinch control method of the vehicle door handle in an embodiment of the present application.
[0052] On the other hand, a computer program product is provided, including a computer program, wherein the computer program is executed by a processor to implement the anti-pinch control method for the vehicle door handle in the embodiment of the present application.
[0053] The present application provides an anti-pinch control method for a vehicle door handle. By detecting obstacles in real time through an internal capacitance sensor, the vehicle door handle can effectively prevent the vehicle door handle from pinching objects or people during the retraction process, thereby improving safety in use. On this basis, by setting a first timer, if the obstacle is removed before the timer reaches the first preset time, the door handle will perform an attempted retraction action, which takes into account both convenience and safety in use and improves the user experience. When an obstacle is detected during the attempted retraction action, the vehicle door handle will unfold and wait for the second preset time before trying again. This reserves sufficient time for the obstacle to be removed, further avoiding the obstacle from being pinched, and ensuring safety in use. On this basis, if the number of attempts reaches a preset threshold, the vehicle door handle will perform a forced retraction action, which ensures that the vehicle can be locked normally and improves the overall safety of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS
[0054] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0055] Figure 1 Schematic diagram of an implementation environment of a vehicle door handle anti-pinch control method provided by an embodiment of the present application;
[0056] Figure 2 This is a flow chart of an anti-pinch control method for a vehicle door handle provided by an embodiment of the present application;
[0057] Figure 3 This is a schematic diagram of a system implementation provided by an embodiment of the present application;
[0058] Figure 4 This is a schematic diagram of an overall anti-pinch control process provided by an embodiment of the present application;
[0059] Figure 5 This is a hardware schematic diagram of a vehicle door handle provided by an embodiment of the present application;
[0060] Figure 6 This is a block diagram of an anti-pinch control device for a vehicle door handle provided by an embodiment of the present application;
[0061] Figure 7 This is a structural diagram of a vehicle body domain controller provided in an embodiment of the present application. DETAILED DESCRIPTION
[0062] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.
[0063] In this application, the terms "first", "second", etc. are used to distinguish identical or similar items with substantially the same effects and functions. It should be understood that there is no logical or temporal dependency between "first", "second", and "nth", nor is there any limitation on the quantity and execution order.
[0064] In the present application, the term "at least one" means one or more, and the term "plurality" means two or more.
[0065] It should be noted that the information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.) and signals involved in this application are all authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of relevant countries and regions.
[0066] Figure 1 Schematic diagram of the implementation environment of a vehicle door handle anti-pinch control method provided by an embodiment of the present application. Figure 1 , the implementation environment includes a vehicle door handle anti-pinch control system 100 .
[0067] The system 100 includes a body domain controller 101 and a vehicle door handle 102. The vehicle door handle 102 is a hidden door handle. The body domain controller 101 is used to load and execute at least one computer program, which is used to implement the anti-pinch control method of the vehicle door handle in the embodiment of the present application. The body domain controller 101 can also verify the sensor signals of the vehicle door handle 102 to ensure precise control of the door handle, which will not be repeated here. The vehicle door handle 102 includes an internal capacitance sensor 1021 and a door handle actuator 1022. The internal capacitance sensor 1021 is used to detect obstacles in real time, and the door handle actuator 1022 is used to receive instructions from the body domain controller 101 to control the vehicle door handle to perform actions.
[0068] In some embodiments, the vehicle body domain controller 101 includes a processor and a memory. The memory is used to store at least one computer program, which is loaded and executed by the processor to implement the vehicle door handle anti-pinch control method in the embodiments of the present application.
[0069] In some embodiments, the door handle actuator 1022 includes a microprocessor and a motor. The microprocessor processes various data and instructions, such as analyzing and calculating signals from sensors, and directs the motor and other actuator components to perform corresponding actions. The motor, under the control of the vehicle domain controller and the microprocessor, drives the mechanical structure to achieve actions such as deploying and retracting the vehicle door handle.
[0070] Among them, the internal capacitance sensor is installed on the inside of the door handle (i.e. the side close to the vehicle door) to detect obstacles (such as fingers, clothing, etc.) on the retraction path of the vehicle door handle. When an obstacle approaches, the electric field distribution on the surface of the capacitance sensor is changed, resulting in a change in the capacitance value. The microprocessor determines whether there is an obstacle by analyzing the change. In the present application, real-time detection is performed by the internal capacitance sensor. Once human hand contact is detected, the anti-pinch mechanism is immediately triggered to prevent the vehicle door handle from retracting or to cause the vehicle door handle to be immediately unfolded during the retraction process, thereby effectively avoiding hand pinching accidents and realizing the door handle retraction function with anti-pinch function. In some embodiments, the vehicle door handle also includes an external capacitance sensor. The external capacitance sensor is installed on the outside of the door handle (such as the user touch area) for keyless entry (Passive Entry, PE) function. Through the coordinated work of the internal capacitance sensor and the external capacitance sensor, accurate identification and protection of the user's hand can be achieved, further improving the safety of use.
[0071] Optionally, the system 100 also includes a remote control key, a vehicle speed module, and a central locking switch. The remote control key and the vehicle domain controller communicate via radio frequency signals to achieve signal exchange; the central locking switch and the vehicle domain controller are connected via a controller area network (CAN) bus to achieve signal exchange; and the vehicle speed module and the vehicle domain controller are connected via a CAN bus. The door handle actuator and the body control module are connected via a standard wiring harness. The CAN bus transmits binary digital signals through a digital communication network to achieve data transmission between various electronic modules in the vehicle; a standard wiring harness is a bundle of wires used to connect electronic components and transmit simple electrical signals.
[0072] In some embodiments, the body controller generates a central locking command to trigger the retraction of the vehicle door handle under any of the following conditions: receiving a locking request signal sent by the remote control key; receiving a locking request signal sent by the central locking switch; determining based on the vehicle speed module that the current vehicle speed is greater than a preset speed threshold; detecting that the remote control key is outside the target area, and the target area is associated with the current vehicle position.
[0073] The retraction of the vehicle door handle is triggered in the following scenarios: When the user presses the lock button on the remote key, the remote key sends a lock request signal to the vehicle domain controller via radio frequency; when the user presses the central locking switch inside the vehicle, the central locking switch sends a lock request signal to the vehicle domain controller via the CAN bus; and when the current vehicle speed exceeds a preset speed threshold, the vehicle speed module notifies the vehicle domain controller via the CAN bus. The vehicle domain controller then generates a central locking lock command to drive the hidden door handle to close.
[0074] Figure 2This is a flow chart of a vehicle door handle anti-pinch control method provided by an embodiment of the present application, which is executed by the vehicle body domain controller. Figure 2 , the method comprises the following steps:
[0075] 201. In response to a central locking command, determine whether an internal capacitance sensor in a vehicle door handle detects an obstacle.
[0076] In this embodiment of the present application, when the central locking system needs to be adjusted from unlocked to locked, the body domain controller generates a central locking lock command and, based on the command, determines whether the internal capacitive sensor in the vehicle door handle has detected an obstacle. If an obstacle is present, the electric field distribution on the surface of the internal capacitive sensor changes, causing a change in capacitance. The body domain controller can determine that the internal capacitive sensor has detected an obstacle.
[0077] In some embodiments, a central locking lock command is generated under any of the following conditions, that is, under any of the following circumstances, the central locking state needs to be changed from unlocked to locked. These conditions include: receiving a lock request signal sent by a remote control key; receiving a lock request signal sent by a central locking switch; the current vehicle speed is greater than a preset speed threshold; or detecting that the remote control key is outside a target area, where the target area is associated with the current vehicle location.
[0078] By clarifying the various conditions for generating the central locking command, these diverse triggering conditions make the vehicle locking operation more flexible and convenient, able to adapt to different usage scenarios, while also enhancing the vehicle's safety and anti-theft performance.
[0079] For ease of description, see Figure 3 As shown, Figure 3 This is a schematic diagram of a system implementation provided by an embodiment of the present application. In which, the remote control key responds to the user pressing the lock button on the remote control key and sends a lock request signal to the body domain controller via wireless radio frequency. The central locking switch in the vehicle responds to the user pressing the central locking switch and sends a lock request signal to the body domain controller via the CAN bus. When the current vehicle speed is greater than the preset vehicle speed threshold, the vehicle speed module sends a corresponding signal to the body domain controller via the CAN bus. For example, the preset vehicle speed threshold is 5 kilometers per hour or 10 kilometers per hour. When the remote control key is outside the target area, the remote control key sends a corresponding signal to the body domain controller via wireless radio frequency. The target area may refer to a circular area centered on the current vehicle, which is not limited by the embodiment of the present application.
[0080] In the various situations described above, the body domain controller generates a central locking command to retract the hidden door handles on each door and trigger anti-pinch control. The hidden door handles include hidden door handle 1, hidden door handle 2, hidden door handle 3, and hidden door handle 4, located on each of the vehicle's four doors. Each hidden door handle is equipped with an internal capacitive sensor, enabling independent anti-pinch control. For example, if an obstruction is detected between hidden door handle 1 and the door, while no obstruction is detected between the other hidden door handles, the other hidden door handles retract normally, and hidden door handle 1 performs the corresponding anti-pinch control.
[0081] 202. When the internal capacitance sensor detects an obstacle, start a first timer to start timing.
[0082] In this embodiment of the present application, if the internal capacitive sensor is triggered, it indicates that the internal capacitive sensor has detected an obstacle. At this point, there is an obstacle between the vehicle door handle and the door, and retracting the vehicle door handle poses a safety risk. Therefore, instead of retracting the door handle, a first timer is started to count the number of times the door handle is retracted, allowing the corresponding operation to be performed later if the timer duration meets the conditions. By setting a buffer time window, the obstacle can be naturally removed within a short period of time, thus balancing safety and operational efficiency.
[0083] In some embodiments, if the internal capacitive sensor doesn't detect an obstacle, the vehicle door handle is controlled to attempt to retract. If the internal capacitive sensor isn't triggered, indicating no obstacle has been detected, there's no obstacle between the door handle and the vehicle door, and the door handle can attempt to retract directly. This improves vehicle locking efficiency, reduces unnecessary waiting time, and enhances the user experience.
[0084] 203. When the timing duration of the first timer has not reached the first preset duration, in response to the internal capacitance sensor detecting that the obstacle has been removed, control the vehicle door handle to perform an attempted retraction action.
[0085] In this embodiment of the present application, obstacle detection is continuously performed using the internal capacitance sensor for a first preset duration. If the internal capacitance sensor changes from a triggered state to an untriggered state within the first preset duration, it indicates that the obstacle has been removed. At this point, there is no obstacle between the vehicle door handle and the door, and the vehicle door handle can attempt to retract. Promptly executing the retraction action after the obstacle is removed ensures the continuity of the central locking process, avoids the door not being locked due to excessive waiting, and improves the user's locking experience and vehicle safety. This embodiment of the present application does not restrict the setting of the first preset duration, for example, the first preset duration can be set to 10 seconds or 15 seconds.
[0086] In some embodiments, if the obstacle is not detected to have been removed within a first preset time period, the vehicle door handle is controlled to perform a forced retraction action. During the first preset time period, obstacle detection is continuously performed through the internal capacitance sensor. If the internal capacitance sensor is always in a triggered state during the first preset time period, it means that the obstacle has been blocking the door handle from retracting for a long time, and the vehicle door handle is controlled to perform a forced retraction action without the need for anti-pinch. This setting avoids the situation where the door handle cannot be retracted due to long-term obstruction by an obstacle, and ensures that the vehicle can be locked after a certain period of time. This mechanism can eliminate abnormal state retention, ensure the safety and convenience of the vehicle, and prevent the vehicle from being locked normally due to human negligence or special circumstances. In addition, through dynamic control of the preset time period, the anti-pinch safety and locking efficiency can be balanced, and the status can be conveyed to the user in combination with sound and light feedback, thereby improving the convenience of vehicle use and system reliability.
[0087] 204. During the attempted retraction action, in response to the internal capacitive sensor detecting an obstacle, the vehicle door handle is controlled to perform an extension action.
[0088] In this embodiment of the present application, if the internal capacitive sensor is triggered during a retraction attempt, it indicates that the internal capacitive sensor has detected an obstacle. Continuing to retract the vehicle door handle at this point presents a safety risk. Therefore, the vehicle door handle is controlled to deploy. If an obstacle is encountered during the retraction attempt, the vehicle door handle deploys, interrupting the dangerous maneuver in real time, preventing the risk of pinching and enhancing the sensitivity of the anti-pinch control.
[0089] In some embodiments, whether to forcibly retract or deploy the door handle is determined based on the duration of the retraction drive. Accordingly, when the vehicle door handle is controlled to begin attempting to retract, a third timer is started, with the duration of the third timer indicating the duration of the attempted retraction operation. If the third timer has not reached a third preset duration, the vehicle door handle is controlled to deploy in response to the internal capacitive sensor detecting an obstacle. If the third timer reaches the third preset duration, the vehicle door handle is controlled to forcibly retract.
[0090] The embodiment of the present application does not limit the setting of the third preset time length, such as setting the third preset time length to 1 second or 2 seconds. During the third preset time length, obstacle detection is continuously performed through the internal capacitance sensor. If the internal capacitance sensor is triggered within the third preset time length, it means that there is an obstacle between the vehicle door handle and the vehicle door, and the vehicle door handle needs to be unfolded to avoid pinching. If the internal capacitance sensor is not triggered within the third preset time length, that is, no obstacle has been detected, then when the timing reaches the third preset time length, the door handle is directly controlled to be forced to retract to ensure the smooth progress of the vehicle locking process.
[0091] 205. Start a second timer to start timing. When the timing duration of the second timer reaches a second preset duration, control the vehicle door handle to perform an attempt to retract the door handle again.
[0092] In this embodiment of the present application, after the vehicle door handle is deployed, the obstacle is given an opportunity to be removed and a second timer is started. This interval retry mechanism improves adaptability to complex scenarios while ensuring safety. This embodiment of the present application does not restrict the setting of the second preset time length, for example, the second preset time length can be set to 2 seconds or 4 seconds. For ease of description, the second preset time length may also be referred to as the interval time length.
[0093] In some embodiments, the subsequent process is determined based on whether an obstacle is detected within the interval. Accordingly, a second timer is started to measure the time and determine whether the internal capacitance sensor detects an obstacle. In other words, the internal capacitance sensor continuously detects obstacles within the interval.
[0094] If the internal capacitive sensor continues to fail to detect an obstacle, the vehicle door handle is controlled to attempt to retract again in response to the second timer reaching a second preset duration. In other words, if the internal capacitive sensor remains untriggered within the interval, an attempt to retract the vehicle door handle can be initiated. This avoids blind retraction attempts without removing the obstacle, reduces unnecessary mechanical movement, minimizes component wear, and improves the accuracy and reliability of anti-pinch control.
[0095] If the internal capacitance sensor detects an obstacle, a fourth timer is started; if the fourth timer has not yet reached the fourth preset time, in response to the internal capacitance sensor detecting that the obstacle has been removed, the vehicle door handle is controlled to perform another attempted retraction action; if the obstacle is not detected to have been removed within the fourth preset time, the vehicle door handle is controlled to perform a forced retraction action. In other words, the internal capacitance sensor continuously detects obstacles within the fourth preset time. If the internal capacitance sensor changes from a triggered state to an untriggered state within the fourth preset time, it indicates that the obstacle has been removed, at which point the vehicle door handle can attempt to retract. If the internal capacitance sensor remains triggered within the fourth preset time, it indicates that the obstacle has been permanently blocking the door handle from retraction, and the vehicle door handle is controlled to perform a forced retraction action without the need for anti-pinch protection. This embodiment of the present application does not limit the setting of the fourth preset time, for example, the fourth preset time can be set to 10 seconds or 15 seconds.
[0096] This provides a certain waiting time for situations where obstacles appear briefly, reduces misjudgments caused by momentary interference, ensures the continuity of the central locking process, and avoids the door not being locked due to waiting too long. At the same time, when obstacles exist for a long time, forced retraction ensures the normal locking function of the vehicle, thereby improving the user's locking experience and vehicle safety.
[0097] 206. When the number of attempted retraction actions reaches a preset threshold, control the vehicle door handle to perform a forced retraction action.
[0098] In the embodiment of the present application, the number of attempted retractions is initially 0 and increases by 1 each time the attempted retraction is performed. For ease of description, the number of attempted retractions may also be referred to as the number of attempts. The embodiment of the present application does not restrict the setting of a preset threshold number of times, such as setting the threshold number of times to 4 or 5. When the number of attempts exceeds the limit, forced retraction is implemented, preventing the door from being locked due to long-term obstructions, ensuring that the vehicle safety protection function is ultimately effective and protecting the vehicle.
[0099] To describe the overall process, see Figure 4 As shown, Figure 4: This is a schematic diagram of the overall anti-pinch control process provided by an embodiment of the present application. When the central locking state changes from unlocked to locked, execute step 401 to determine whether the internal capacitance sensor is triggered. If the internal capacitance sensor is triggered, execute step 402 to determine whether it continues for more than the first preset time length. If it continues for more than the first preset time length, execute step 403 to forcibly retract the door handle (no anti-pinch) and reset the number of attempts to zero. If it does not continue for more than the first preset time length, execute step 401. If the internal capacitance sensor is not triggered, execute step 404 to try to retract the door handle and increase the number of attempts by 1. Execute step 405 to determine whether the number of attempts is not less than the preset number threshold. If the number of attempts is not less than the preset number threshold, execute step 406 to forcibly retract the door handle (no anti-pinch) and reset the number of attempts to zero. If the number of attempts is less than the preset number threshold, execute step 407 to determine whether the retraction drive exceeds the third preset time length. If it exceeds, execute step 406. If it does not exceed, execute step 408 to determine whether the internal capacitance sensor is triggered. If not triggered, execute step 407. If triggered, execute step 409 to drive the door handle to unfold. Then, execute step 410 to determine whether the internal capacitance sensor is triggered. If not triggered, execute step 411 to determine whether it continues for more than the second preset time length. If exceeded, execute step 404; if not exceeded, execute step 410. If triggered, execute step 412 to determine whether it continues for more than the third preset time length. If exceeded, execute step 413 to force the door handle to retract (without anti-pinch) and reset the number of attempts to zero. If not exceeded, execute step 414 to determine whether the internal capacitance sensor is triggered. If triggered, execute step 412; if triggered, execute step 404. Optionally, the first preset time length is set to 10 seconds, the second preset time length is set to 2 seconds, the third preset time length is set to 1 second, the fourth preset time length is set to 10 seconds, and the preset number threshold is set to 4 times.
[0100] The aforementioned door handles are vehicle door handles, also known as concealed door handles. Simply put, when the central control is unlocked and locked, if the internal capacitive sensor in the door handle detects a hand, the current door handle will not be activated, and the other handles will retract normally. The door handle will retract only after the hand is removed or the 10-second timeout. If a hand is suddenly detected during the retraction process, the current door handle will be deployed, and the other door handles will retract normally. Retraction will be attempted again after 2 seconds, and forced retraction will occur after a maximum of 4 attempts.
[0101] In addition, for the convenience of describing the vehicle door handle provided by this application, see Figure 5 As shown, Figure 5 FIG1 is a hardware schematic diagram of a vehicle door handle provided in an embodiment of the present application. The vehicle door handle includes an internal capacitive sensor.
[0102] In some embodiments, a secondary arming timer has been added. After the vehicle is unlocked, if the doors are not opened within this timer, the vehicle will automatically relock and the door handles will retract. Modifying this timer allows for adjustments to the speed of vehicle re-arming, such as from 30 seconds to 120 seconds, to reduce the risk of trapping and improve user convenience and safety.
[0103] The embodiment of the present application provides an anti-pinch control method for a vehicle door handle. By detecting obstacles in real time through an internal capacitance sensor, the vehicle door handle can effectively prevent objects or human bodies from being pinched during the retraction process, thereby improving safety in use. On this basis, by setting a first timer, if the obstacle is removed before its timing duration reaches the first preset duration, the door handle will perform an attempted retraction action, which takes into account both convenience and safety in use and improves the user experience. When an obstacle is detected during the attempted retraction action, the vehicle door handle will unfold and wait for the second preset duration before trying again. This reserves sufficient time for the obstacle to be removed, further avoiding the obstacle from being pinched, and ensuring safety in use. On this basis, if the number of attempts reaches a preset threshold, the vehicle door handle will perform a forced retraction action, which ensures that the vehicle can be locked normally and improves the overall safety of the vehicle.
[0104] That is, in this application, when the hidden door handle is closed, the internal capacitive sensor detects in real time whether there is a human hand touching it. Once human hand contact is detected, the anti-pinch mechanism is immediately triggered, preventing the door handle from retracting or immediately unfolding during the retraction process, effectively avoiding hand pinching accidents. In addition, it simplifies user operation. After the user approaches to unlock the door handle, the door handle will be unfolded for a longer period of time for the user to use, avoiding the user from unlocking and unfolding the door handle multiple times. While ensuring anti-pinch protection, the door handle can be intelligently unfolded or hidden according to the vehicle status and user needs, improving user convenience.
[0105] Figure 6 This is a block diagram of an anti-pinch control device for a vehicle door handle provided by an embodiment of the present application. The device is used to execute the steps of the anti-pinch control method for a vehicle door handle. Figure 6 The anti-pinch control device for the vehicle door handle includes: a determination module 601, a timing module 602 and a control module 603.
[0106] a determination module 601 for determining, in response to a central locking lock command, whether an internal capacitance sensor in a vehicle door handle detects an obstacle;
[0107] The timing module 602 is configured to start a first timer for timing when the internal capacitance sensor detects an obstacle;
[0108] The control module 603 is configured to control the vehicle door handle to perform an attempted retraction action in response to the internal capacitance sensor detecting that the obstacle has been removed, if the timing duration of the first timer has not reached the first preset duration;
[0109] The control module 603 is further configured to control the vehicle door handle to perform an extension action in response to the internal capacitive sensor detecting an obstacle during the attempted retraction action;
[0110] The control module 603 is further configured to start a second timer to start timing, and when the timing duration of the second timer reaches a second preset duration, control the vehicle door handle to perform an attempt to retract the door handle again;
[0111] The control module 603 is further configured to control the vehicle door handle to perform a forced retraction action when the number of attempted retraction actions reaches a preset threshold.
[0112] In some embodiments, the control module 603 is also used to start a third timer for timing when controlling the vehicle door handle to start performing an attempted retraction action, and the timing duration of the third timer indicates the execution duration of the attempted retraction operation; when the timing duration of the third timer has not reached the third preset duration, in response to the internal capacitance sensor detecting an obstacle, the vehicle door handle is controlled to perform an expansion action; when the timing duration of the third timer reaches the third preset duration, the vehicle door handle is controlled to perform a forced retraction action.
[0113] In some embodiments, the control module 603 is also used to start a second timer to determine whether the internal capacitance sensor detects an obstacle; if the internal capacitance sensor continues to fail to detect an obstacle, in response to the timing of the second timer reaching a second preset time, the vehicle door handle is controlled to perform an attempt to retract.
[0114] In some embodiments, the control module 603 is also used to start a fourth timer to start timing when the internal capacitance sensor detects an obstacle; when the timing duration of the fourth timer has not reached a fourth preset duration, in response to the internal capacitance sensor detecting that the obstacle has been removed, control the vehicle door handle to perform an attempt to retract the door handle again; when the obstacle is not detected to have been removed within the fourth preset duration, control the vehicle door handle to perform a forced retraction action.
[0115] In some embodiments, the control module 603 is further configured to control the vehicle door handle to perform a forced retraction action if the obstacle is not detected to be removed within the first preset time period.
[0116] In some embodiments, the control module 603 is further configured to control the vehicle door handle to perform an attempted retraction action when the internal capacitive sensor does not detect an obstacle.
[0117] In some embodiments, the central locking command is generated under any of the following conditions: receiving a locking request signal sent by the remote control key; receiving a locking request signal sent by the central locking switch; the current vehicle speed is greater than a preset speed threshold; detecting that the remote control key is outside the target area, and the target area is associated with the current vehicle position.
[0118] The present application provides an anti-pinch control device for a vehicle door handle. By detecting obstacles in real time through an internal capacitance sensor, the device can effectively prevent the vehicle door handle from pinching objects or people during the retraction process, thereby improving safety. Furthermore, by setting a first timer, if the obstacle is removed before the timer reaches a first preset time, the door handle will attempt to retract. This balances convenience and safety, improving the user experience. When an obstacle is detected during the attempted retraction, the vehicle door handle will unfold and wait for a second preset time before trying again. This reserves sufficient time for the obstacle to be removed, further preventing the obstacle from being pinched and ensuring safety. Furthermore, if the number of attempts reaches a preset threshold, the vehicle door handle will perform a forced retraction action, ensuring that the vehicle can be locked normally and improving the overall safety of the vehicle.
[0119] It should be noted that the anti-pinch control device for a vehicle door handle provided in the above embodiment is only illustrated by the division of the aforementioned functional modules when running an application program. In actual applications, the aforementioned functions can be assigned to different functional modules as needed, that is, the internal structure of the electronic device can be divided into different functional modules to complete all or part of the functions described above. In addition, the anti-pinch control device for a vehicle door handle provided in the above embodiment and the anti-pinch control method embodiment for a vehicle door handle are based on the same concept. The implementation process is described in the method embodiment and will not be repeated here.
[0120] Figure 7 This is a structural diagram of a vehicle body domain controller provided according to an embodiment of the present application.
[0121] Typically, the vehicle body domain controller 700 includes a main control module 701 and a CAN interface 702 . The main control module 701 is connected to the CAN interface 702 .
[0122] The main control module 701 includes a processor and a memory. The memory is used to store at least one computer program, which is loaded and executed by the processor to implement the anti-pinch control method for the vehicle door handle in the embodiment of the present application.
[0123] The processor may include one or more processing cores, such as a 7-core processor or a 7-core processor. The processor may be implemented in hardware using at least one of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor may also include a main processor and a coprocessor. The main processor is used to process data in the awake state, also known as a CPU (Central Processing Unit); the coprocessor is a low-power processor used to process data in the standby state. In some embodiments, the processor may integrate a GPU (Graphics Processing Unit), which is responsible for rendering and drawing content required to be displayed on the vehicle display screen. In some embodiments, the processor may also include an AI (Artificial Intelligence) processor, which is responsible for processing computational operations related to machine learning. The memory may include one or more computer-readable storage media, which may be non-transitory. The memory may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices or flash storage devices. In some embodiments, the non-transitory computer-readable storage medium in the memory is used to store at least one computer program, which is used to be executed by the processor to implement the anti-pinch control method for the vehicle door handle provided in the method embodiment of the present application.
[0124] The body domain controller is connected to the CAN bus via a CAN interface. Optionally, the CAN interface 702 includes multiple interfaces for communicating with the central locking switch, the vehicle speed module, etc. The main control module 701 in the body domain controller is connected to the CAN bus via the multiple interfaces to receive signals from the corresponding modules or send instructions to the corresponding modules to achieve vehicle control.
[0125] Those skilled in the art will understand that Figure 7 The structure shown in the figure does not constitute a limitation on the vehicle body domain controller 700, and may include more or fewer components than shown in the figure, or combine certain components, or adopt a different component arrangement.
[0126] The present application also provides a computer-readable storage medium storing at least one computer program, which is loaded and executed by a processor to implement the vehicle door handle anti-pinch control method of the above embodiment. For example, the computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a compact disc read-only memory (CD-ROM), a magnetic tape, a floppy disk, or an optical data storage device.
[0127] An embodiment of the present application further provides a computer program product, including a computer program, which is executed by a processor to implement the anti-pinch control method for the vehicle door handle in the embodiment of the present application.
[0128] Those skilled in the art will understand that all or part of the steps of implementing the above embodiments may be accomplished by hardware, or by programs instructing related hardware to accomplish the steps. The programs may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a disk, or an optical disk, etc.
[0129] The above are merely optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.
Claims
1. A vehicle door handle anti-pinch control method, characterized in that: The method comprises: In response to a central locking command, determining whether an interior capacitive sensor within a vehicle door handle detects an obstacle; When the internal capacitance sensor detects an obstacle, starting a first timer to start timing; When the timing duration of the first timer has not reached a first preset duration, in response to the internal capacitance sensor detecting that the obstacle has been removed, controlling the vehicle door handle to perform an attempted retraction action; During the process of performing the attempted retraction action, in response to the internal capacitance sensor detecting an obstacle, controlling the vehicle door handle to perform an extension action; Starting a second timer to start timing, and when the timing duration of the second timer reaches a second preset duration, controlling the vehicle door handle to perform the attempted retraction action again; When the number of times the attempted retraction action is performed reaches a preset number threshold, the vehicle door handle is controlled to perform a forced retraction action.
2. The method according to claim 1, characterized in that During the process of performing the attempted retraction action, in response to the internal capacitance sensor detecting an obstacle, controlling the vehicle door handle to perform an extension action includes: When the vehicle door handle is controlled to start performing the attempted retraction action, a third timer is started to count, and the timing duration of the third timer indicates the execution duration of the attempted retraction operation; When the timing duration of the third timer has not reached a third preset duration, in response to the internal capacitance sensor detecting an obstacle, controlling the vehicle door handle to perform the deployment action; The method further comprises: When the timing duration of the third timer reaches the third preset duration, the vehicle door handle is controlled to perform the forced retraction action.
3. The method according to claim 1, characterized in that The step of starting a second timer to start timing, and controlling the vehicle door handle to perform the attempted retraction action again when the timing duration of the second timer reaches a second preset duration, includes: Starting the second timer to measure time and determine whether the internal capacitance sensor detects an obstacle; In a case where the internal capacitance sensor continues to fail to detect an obstacle, in response to the timing duration of the second timer reaching the second preset duration, the vehicle door handle is controlled to perform the attempted retraction action again.
4. The method according to claim 3, characterized in that The method further comprises: When the internal capacitance sensor detects an obstacle, starting a fourth timer to start timing; If the fourth timer has not reached a fourth preset time, in response to the internal capacitance sensor detecting that the obstacle has been removed, controlling the vehicle door handle to attempt to retract again; When the obstacle is not detected to be removed within the fourth preset time period, the vehicle door handle is controlled to perform the forced retraction action.
5. The method according to claim 1, characterized in that The method further comprises: When the obstacle is not detected to be removed within the first preset time period, the vehicle door handle is controlled to perform the forced retraction action.
6. The method according to claim 1, characterized in that The method further comprises: In a case where the internal capacitance sensor does not detect an obstacle, the vehicle door handle is controlled to perform a trial retraction action.
7. The method according to claim 1, characterized in that The central locking command is generated under any of the following conditions: Receiving a locking request signal sent by a remote control key; Receiving a locking request signal sent by the central locking switch; The current vehicle speed is greater than the preset speed threshold; It is detected that the remote control key is outside a target area, where the target area is associated with a current position of the vehicle.
8. An anti-pinch control device for a vehicle door handle, characterized in that: The device comprises: a determination module for determining, in response to a central locking lock command, whether an internal capacitive sensor in a vehicle door handle detects an obstacle; a timing module, configured to start a first timer to start timing when the internal capacitance sensor detects an obstacle; a control module, configured to, if the timing duration of the first timer has not reached a first preset duration, control the vehicle door handle to perform an attempted retraction action in response to the internal capacitance sensor detecting that the obstacle has been removed; The control module is further configured to control the vehicle door handle to perform an extension action in response to the inner capacitive sensor detecting an obstacle during the attempted retraction action; The control module is further configured to start a second timer for timing, and when the timing duration of the second timer reaches a second preset duration, control the vehicle door handle to perform the attempted retraction action again; The control module is further configured to control the vehicle door handle to perform a forced retraction action when the number of times the attempted retraction action is performed reaches a preset threshold number.
9. A vehicle door handle anti-pinch control system, characterized in that: The system includes a body domain controller and a vehicle door handle; The vehicle body domain controller is used to load and execute at least one computer program, wherein the at least one computer program is used to implement the anti-pinch control method for the vehicle door handle according to any one of claims 1 to 7; The vehicle door handle includes an internal capacitance sensor and a door handle actuator. The internal capacitance sensor is used to detect obstacles in real time, and the door handle actuator is used to receive instructions from the body domain controller to control the vehicle door handle to perform actions.
10. A computer-readable storage medium, characterized in that The computer-readable storage medium is used to store at least one computer program, and the at least one computer program is used to execute the anti-pinch control method for the vehicle door handle according to any one of claims 1 to 7.