Sliding door induction control system and method and vehicle

Abstract

The invention discloses a sliding door induction control system and method and a vehicle, and belongs to the technical field of vehicles, and the sliding door induction control system comprises a vehicle body controller which is used for obtaining a key position signal; the sliding door induction opening sensor is connected with the automobile body controller through an LIN bus, the sliding door induction opening sensor is used for obtaining a kicking signal, and the sliding door induction opening sensor is further used for obtaining a control signal to execute a corresponding mode; the electric sliding door control module is connected with the vehicle body controller through a CAN bus, and the electric sliding door control module is used for obtaining a control signal to execute a corresponding working mode; the vehicle body controller is further used for sending corresponding control signals to the sliding door induction opening sensor and the electric sliding door control module. According to the method, the self-checking strategy is executed after power-on, the fault risk caused by module abnormity is reduced, and the system operation stability and the user experience are improved.

Description

Technical Field

[0001] This invention discloses a sliding door sensor control system, method, and vehicle, belonging to the field of vehicle technology. Background Technology

[0002] With the increasing demand for intelligent and convenient vehicles, sliding doors, as an important feature of multi-purpose vehicles (such as MPVs and SUVs), have seen their sensor control technology become crucial for enhancing user experience. Traditional sliding door sensor control systems rely solely on a single sensor to trigger door opening, lacking secondary verification of user permissions. This makes them prone to accidental door opening due to accidental touches, posing a safety hazard. In some systems, the communication protocols between the sensors, door control modules, and body control units are inconsistent, resulting in high data transmission latency or poor stability, leading to asynchronous command execution. After the vehicle is powered on, each module immediately enters its working state. If there is a potential fault in the sensor or door control module, it may cause door malfunction or abnormal operation, increasing after-sales maintenance costs. Furthermore, the lack of verification of operation legitimacy based on the user's key location information may allow unauthorized personnel to open the door via sensor access, reducing vehicle security. Summary of the Invention

[0003] This invention proposes a sliding door sensor control system, method, and vehicle, which solves the problem that traditional systems rely solely on foot kick signals to trigger the operation without combining the user's key location information to determine the legality of the operation, which may lead to unauthorized opening. The invention improves the safety of use by verifying the spatial range.

[0004] The technical solution of the present invention is as follows:

[0005] According to a first aspect of the present invention, a sliding door sensing control system is provided, comprising: a body controller for acquiring a key position signal; a sliding door opening sensor connected to the body controller via a LIN bus, the sliding door opening sensor for acquiring a kick signal, and the sliding door opening sensor for acquiring a control signal to execute a corresponding mode; and an electric sliding door control module connected to the body controller via a CAN bus, the electric sliding door control module for acquiring a control signal to execute a corresponding operating mode; wherein the body controller is further configured to send corresponding control signals to the sliding door opening sensor and the electric sliding door control module respectively.

[0006] Furthermore, the sliding door opening sensor is also used to acquire control signals to execute the corresponding closing mode, operating mode, and flashing mode. The operating mode includes: fault mode, standard mode, and low power state.

[0007] According to a second aspect of the present invention, a sliding door sensing control method is provided, applied to a sliding door sensing control system of the first aspect, comprising: in response to a vehicle power-on signal, a sliding door sensing opening sensor and an electric sliding door control module respectively execute corresponding self-test strategies; a body controller, in response to receiving ready signals sent by the sliding door sensing opening sensor and the electric sliding door control module respectively, sets standby signals for the sliding door sensing opening sensor and the electric sliding door control module respectively; the sliding door sensing opening sensor, in response to acquiring a valid kick signal, sends a door opening request signal to the body controller; the body controller, after receiving the door opening request signal, acquires the key position distance; based on the key position distance, makes a judgment through an effective range threshold to obtain a first judgment result; in response to the first judgment result that the key position distance is less than or equal to the effective range threshold, sends a door opening signal to the electric sliding door control module; in response to the electric sliding door control module receiving the door opening signal, the electric sliding door control module executes the target action corresponding to the door opening signal.

[0008] Furthermore, in response to the first judgment result that the key position distance is greater than the effective range threshold, a standby signal is sent to the sliding door opening sensor.

[0009] Furthermore, the sliding door sensing control method also includes: the body controller makes a judgment based on the time of receiving the no-door-opening-request signal and a preset time to obtain a second judgment result; in response to the second judgment result that the time of receiving the no-door-opening-request signal is greater than the preset time, the body controller sends a low-power state to the sliding door sensing sensor, the low-power state being that the LIN bus between the sliding door sensing sensor and the body controller is in a sleep state; in response to the second judgment result that the time of receiving the no-door-opening-request signal is less than or equal to the preset time, the LIN bus between the sliding door sensing sensor and the body controller maintains its current state.

[0010] Furthermore, the sliding door sensor control method also includes: when the body controller responds to the lock signal, the body controller sends a forced closing command to the sliding door sensor and the electric sliding door control module respectively; the sliding door sensor receives the forced closing command and executes the sensor closing mode;

[0011] The sliding door control module receives the forced closing command and executes the control closing mode.

[0012] Furthermore, the sliding door sensor control method also includes: the sliding door sensor responds to a self-test fault strategy, which includes: when the sliding door sensor detects a hardware malfunction, it sends a fault signal to the body controller and enters a locked state, only responding to the body controller's fault reset command or flashing command; when the body controller receives the fault signal, it sends a fault reset command to the sliding door sensor; after the sliding door sensor receives the fault reset command from the body controller and passes the self-test, it switches to a low-power state; if the sliding door sensor sends signals to the body controller five times consecutively without receiving feedback, it stops the foot kick signal detection function until it is reset after physical repair.

[0013] According to a third aspect of the present invention, a vehicle is provided, including a sliding door sensing control system as described in the first aspect.

[0014] The beneficial effects of this invention are as follows:

[0015] This invention provides a sliding door sensing control system, method, and vehicle. It accurately acquires valid kick signals through a sliding door opening sensor, and combines this with the vehicle body controller's judgment of the key's position distance, significantly reducing false triggering and improving opening accuracy. A LIN bus connects the sliding door opening sensor to the vehicle body controller, and a CAN bus connects the electric sliding door control module to the vehicle body controller, achieving efficient communication and collaborative control between modules. A key position distance verification mechanism is introduced, allowing the sliding door to open only when the key is within the valid range, preventing unauthorized operation and improving security. After power-on, the system executes a self-test strategy to ensure all modules are ready before entering standby mode, reducing the risk of failure due to module malfunctions and improving system stability and user experience.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0017] Figure 1 This is a schematic block diagram illustrating the structure of a sliding door sensor control system according to an exemplary embodiment. Detailed Implementation

[0018] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] Example 1: Figure 1 A sliding door sensing control system according to an exemplary embodiment includes: a body controller, a sliding door sensing opening sensor, and an electric sliding door control module, wherein...

[0022] The core function of the body controller is to acquire the key position signal. It also acts as the control center, sending corresponding control signals to the sliding door induction sensor and the electric sliding door control module to achieve coordinated control of the entire system.

[0023]

[0024] in:

[0025] d: Distance from key position (unit: meters).

[0026] dthreshold: Valid range threshold, a preset constant, such as 2 meters.

[0027] allow open The door opening permission indicator is 1, which means the door is allowed to be opened, and 0 means it is denied.

[0028] The sliding door opening sensor connects to the body controller via a LIN bus. Its main functions include acquiring foot kick signals and receiving control signals from the body controller and executing corresponding modes. The executable modes include a closed mode, a working mode, and a flashing mode; the working mode is further subdivided into a fault mode, a standard mode, and a low-power state.

[0029] The electric sliding door control module is connected to the body controller via a CAN bus. Its core function is to receive control signals sent by the body controller and execute the corresponding working mode according to the signals to realize the opening and closing of the sliding door.

[0030] In this embodiment, the functions of each module are clearly defined. The body controller acts as the central coordinator for signal transmission and command issuance. The sliding door opening sensor and the electric sliding door control module are connected to the body controller via LIN and CAN buses, respectively, to adapt to different signal transmission requirements, ensuring stable and efficient data interaction and improving the overall system response speed. The sliding door opening sensor supports multiple modes (off mode, working mode, and flashing mode) and subdivided states within the working mode (fault mode, standard mode, and low-power state), which can be flexibly switched according to actual scenarios (e.g., entering a low-power state to save energy when the vehicle is stationary, and switching to fault mode to ensure safety when an anomaly occurs), enhancing the system's adaptability and reliability. The body controller precisely controls the sensor and door control module by sending corresponding control signals. Combined with the sensor's acquisition of foot kick signals and mode execution, it ensures that the sliding door action matches the user's operating intention, reducing the risk of misoperation and improving safety and user experience.

[0031] Example 2: A sliding door sensor control method according to an exemplary embodiment includes the following steps:

[0032] When the vehicle receives a power-on signal, the sliding door induction opening sensor and the electric sliding door control module will each execute their respective self-test strategies.

[0033] After receiving the ready signals from the sliding door induction opening sensor and the electric sliding door control module, the body controller will send a standby signal to both of them.

[0034] Once the sliding door's induction opening sensor receives a valid kick signal, it will send an opening request signal to the vehicle body controller.

[0035] After receiving the door opening request signal, the body controller will obtain the distance to the key position and compare it with the effective range threshold to obtain the first judgment result.

[0036] If the first judgment result is that the distance to the key position is less than or equal to the effective range threshold, the body controller will send an open door signal to the electric sliding door control module. After receiving the signal, the electric sliding door control module will execute the corresponding target action.

[0037] If the first judgment result is that the distance to the key position is greater than the effective range threshold, the body controller will send a standby signal to the sliding door opening sensor.

[0038] The body controller compares the time it takes to receive a no-door-opening-request signal with a preset time to arrive at a second judgment result. If the time it takes to receive a no-door-opening-request signal is greater than the preset time, the body controller sends a low-power state command to the sliding door opening sensor, at which point the LIN bus between the two is in sleep mode; if the time is less than or equal to the preset time, the LIN bus maintains its current state.

[0039]

[0040] in:

[0041] tidle: The duration (in seconds) of no door opening request signal, monitored by the body control system.

[0042] tpreset: Preset time threshold (e.g., 300 seconds) to trigger low power consumption.

[0043] lin state LIN bus status (low_power indicates sleep mode, active indicates active mode)

[0044] When the body controller receives a lock signal, it sends a forced closing command to the sliding door opening sensor and the electric sliding door control module respectively. The sliding door opening sensor executes the sensor closing mode, and the electric sliding door control module executes the control closing mode.

[0045] The self-test fault strategy of the sliding door induction opening sensor is as follows: When a hardware malfunction occurs during self-testing, a fault signal is sent to the body controller and the sensor enters a locked state, only responding to fault reset or flashing commands. After receiving the fault signal, the body controller sends a fault reset command, and the sensor switches to a low-power state after passing the self-test. If the sensor sends signals to the body controller five times consecutively without receiving feedback, the foot kick signal detection function will be stopped, requiring physical repair and reset.

[0046]

[0047] Where: n: the number of consecutive times no feedback was received (count variable).

[0048] reset cmd : Fault reset command sent by the body controller (Boolean value, true indicates the command is valid). testpass : Sensor self-test passed flag (Boolean value, true indicates that the hardware is normal).

[0049] fault action Sensor operation status (disable) detection This indicates that the detection has stopped; reset. check This indicates a reset check; "normal" indicates normal operation.

[0050] In this embodiment, each module performs a self-test after the vehicle is powered on, ensuring that it enters the workflow under normal conditions, reducing subsequent failures caused by module malfunctions, and improving the stability of system startup. The combination of valid foot kick signals and key position distance for dual judgment to control door opening avoids accidental triggering and unauthorized opening, enhancing safety. Switching to a low-power state based on the duration of no door opening request signal puts the LIN bus into sleep mode, effectively reducing system energy consumption and meeting energy-saving requirements. A forced closing command is sent when the vehicle is locked to ensure that the sliding door modules close promptly, improving vehicle parking safety; simultaneously, the clear fault handling strategy can promptly detect and respond to sensor anomalies, ensuring continuous and stable system operation and reducing maintenance costs and time.

[0051] Example 3: A vehicle according to an exemplary embodiment includes the sliding door sensor control system described in Example 1. Through the dual verification mechanism of the sliding door sensor control system (valid kick signal + key position distance threshold judgment), the vehicle can accurately identify the user's legitimate operating intent, preventing unauthorized personnel from opening the sliding door and reducing the risk of theft of vehicle property or unauthorized entry. Simultaneously, when locking the vehicle, the system sends a forced closing command to ensure the sliding door and related modules are completely closed, further enhancing vehicle security when parked. When the vehicle is powered on, the self-test strategy of the sliding door sensor and the electric sliding door control module can proactively detect hardware or program anomalies, reducing problems such as sliding door jamming or malfunctions caused by module failures during driving. Furthermore, the sensor's fault handling mechanism (such as locking state when there is a hardware anomaly, and stopping detection when there is no signal feedback) can quickly locate and isolate faults, reducing the risk of system failure and ensuring long-term stable vehicle operation. The system automatically switches to a low-power state (LIN bus sleep) based on the duration of no door opening request signal, which can reduce the power consumption when the vehicle is in standby or idle, extend the battery life, and indirectly improve the driving range, especially for new energy vehicles, which is in line with the trend of vehicle energy-saving design.

[0052] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for the present invention. Other modifications can be readily made by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and examples shown and described herein.

Claims

1. A sliding door sensor control system, characterized in that, include: A body control unit, used to acquire a key position signal; A sliding door opening sensor is provided, which is connected to the body controller via a LIN bus. The sliding door opening sensor is used to acquire a kick signal and also to acquire a control signal to execute a corresponding mode. An electric sliding door control module is provided, which is connected to the body controller via a CAN bus. The electric sliding door control module is used to acquire control signals and execute corresponding working modes. The body controller is also used to send corresponding control signals to the sliding door induction opening sensor and the electric sliding door control module, respectively.

2. The sliding door sensor control system according to claim 1, characterized in that, The sliding door opening sensor is also used to acquire control signals to execute the corresponding closing mode, working mode and flashing mode, wherein the working mode includes: fault mode, standard mode and low power state.

3. A sliding door sensor control method, characterized in that, The sliding door sensor control system according to claim 1 or 2 includes: In response to the vehicle power-on signal, the sliding door induction opening sensor and the electric sliding door control module respectively execute the corresponding self-test strategy; The body controller responds to receiving ready signals from the sliding door opening sensor and the electric sliding door control module, respectively, and then sends standby signals to the sliding door opening sensor and the electric sliding door control module. Upon receiving a valid kick signal, the sliding door opening sensor sends an opening request signal to the vehicle body controller. After receiving the door opening request signal, the vehicle body controller obtains the key position distance; Based on the distance to the key location, a first judgment result is obtained by using an effective range threshold. In response to the first determination result that the distance to the key position is less than or equal to the effective range threshold, an open door signal is sent to the electric sliding door control module; In response to the electric sliding door control module receiving the door opening signal, the electric sliding door control module executes the target action corresponding to the door opening signal.

4. The sliding door sensor control method according to claim 3, characterized in that, In response to the first determination result that the distance to the key position is greater than the effective range threshold, the standby signal is sent to the sliding door opening sensor.

5. The sliding door sensor control method according to claim 3, characterized in that, The sliding door sensor control method further includes: The vehicle controller makes a judgment based on the time when no door opening request signal is received and a preset time, and obtains a second judgment result. In response to the second judgment result that the time for which no door opening request signal is received is greater than the preset time, the body controller sends a low power state to the sliding door opening sensor. The low power state is that the LIN bus between the sliding door opening sensor and the body controller is in a sleep state. In response to the second determination result that the time for which no door opening request signal is received is less than or equal to the preset time, the LIN bus between the sliding door opening sensor and the body controller remains in its current state.

6. The sliding door sensor control method according to claim 3, characterized in that, The sliding door sensor control method further includes: When the vehicle lock signal is received, the body controller sends a forced closing command to the sliding door opening sensor and the electric sliding door control module, respectively. The sliding door opening sensor acquires the forced closing command and executes the sensor closing mode; The sliding door control module receives the forced closing command and executes the control closing mode.

7. The sliding door sensor control method according to claim 6, characterized in that, The sliding door sensor control method further includes: The sliding door opening sensor responds to a self-test fault strategy, which includes: When the sliding door opening sensor malfunctions during self-test, it sends a fault signal to the body controller and enters a locked state, only responding to the body controller's fault reset command or flash command. When the body controller receives the fault signal, it sends a fault reset command to the sliding door opening sensor. After the sliding door opening sensor receives the body controller's fault reset command and passes the self-test, it switches to a low-power state. If the sliding door opening sensor sends signals to the body controller five times consecutively without receiving feedback, the foot kick signal detection function will be stopped until it is reset after physical repair.

8. A vehicle, characterized in that, Includes the sliding door sensor control system as described in claim 1 or 2.

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