Central control armrest box position control method

Abstract

The embodiment of the invention provides a central control armrest box position control method, relates to the technical field of vehicle control, and can improve the control effect of a central control armrest box. The central control armrest box control system of the embodiment of the invention comprises a brush direct current motor; the gear box is connected with an output shaft of the brush direct current motor so as to execute power transmission and rotating speed adjustment; the screw rod is respectively connected with the gear box and the central control armrest box and is used for transmitting the power of the brush direct current motor to the central control armrest box; and the controller drives the brush direct current motor according to a control signal sent by a user so as to control the movement of the central control armrest box.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle control, and in particular, to a method for controlling the position of a center console armrest box. Background Art

[0002] Some models of vehicles are equipped with a center console armrest box that can slide significantly between the front and rear seats and can be used to arrange mobile phone charging devices, cup holders, refrigerators, etc. At present, the control of the center console armrest box is generally executed by the vehicle infotainment system. Since the vehicle infotainment system executes a large number of complex control logics, the control effect of the center console armrest box is not good. Summary of the Invention

[0003] In view of this, an embodiment of the present invention provides a method for controlling the position of a center console armrest box, which can improve the control effect of the center console armrest box by providing an independent control system for the center console armrest box.

[0004] To achieve the above object, according to one aspect of the present invention, a control system for a center console armrest box is provided.

[0005] In the control system for a center console armrest box according to an embodiment of the present invention, the center console armrest box is located inside the vehicle; the control system for the center console armrest box includes: a brushed DC motor; a gearbox connected to the output shaft of the brushed DC motor to perform power transmission and speed regulation; a lead screw connected to the gearbox and the center console armrest box respectively to transmit the power of the brushed DC motor to the center console armrest box; and a controller that drives the brushed DC motor according to a control signal issued by a user and thus controls the movement of the center console armrest box.

[0006] Preferably, the control signal includes: a forward movement signal and a backward movement signal; after receiving the forward movement signal, the controller controls the center console armrest box to move forward through the brushed DC motor; when the controller detects that the center console armrest box reaches the front limit position or the forward movement signal is interrupted, the controller controls the center console armrest box to stop moving through the brushed DC motor; after receiving the backward movement signal, the controller controls the center console armrest box to move backward through the brushed DC motor; when the controller detects that the center console armrest box reaches the rear limit position or the backward movement signal is interrupted, the controller controls the center console armrest box to stop moving through the brushed DC motor.

[0007] Preferably, the control signal further includes: an opening degree adjustment signal; after receiving the opening degree adjustment signal, the controller controls the opening degree of the center console armrest box to perform stepless position adjustment between zero and 100%.

[0008] Preferably, the central control console box control system further includes: a positioning module located in the central control console box; the positioning module collects the position of the central control console box in the vehicle in real time and reports it to the controller.

[0009] Preferably, the control signal further includes: a continue moving signal and a stop moving signal; when the controller detects through the positioning module that the central control console box moves to one of two pre-configured anti-touch positions, it controls the central control console box to stop moving and sends an anti-touch prompt to the vehicle's in-vehicle system; after sending the anti-touch prompt, in response to receiving the continue moving signal, the controller controls the central control console box to continue moving until it reaches the target position indicated by the continue moving signal; in response to receiving the stop moving signal, the controller controls the central control console box to stop moving.

[0010] Preferably, the central control console box control system further includes a storage module; the controller receives a custom position saving signal issued by the user, and at least one piece of position information customized by the user is carried in the custom position saving signal; the controller saves the position information to the storage module.

[0011] Preferably, the central control console box control system further includes: an H-bridge circuit for driving the brushed DC motor, an amplifier circuit connected to the H-bridge circuit, and a Hall sensor provided inside the brushed DC motor; the amplifier circuit amplifies the current from the transistor low side of the H-bridge circuit to the ground terminal to obtain an amplified current; the Hall sensor generates Hall pulses based on the rotation of the coil in the brushed DC motor; the controller collects the amplified current and the number of Hall pulses per unit time; when it is determined that the amplified current is greater than a pre-configured current threshold and the number of Hall pulses is less than a pre-configured pulse number threshold, the controller controls the central control console box to stop moving to implement the anti-pinch function.

[0012] Preferably, the controller controls the movement of the central control console box by adjusting the speed through a PID speed loop and a position loop.

[0013] To achieve the above objectives, according to another aspect of the present invention, there is also provided a central control console box control method based on the above central control console box control system.

[0014] The control method of the center console armrest box in the embodiment of the present invention is executed by a controller; the control method of the center console armrest box includes: after receiving a forward movement signal, controlling the center console armrest box to move forward through the brushed DC motor; when it is detected that the center console armrest box reaches the front limit position or the forward movement signal is interrupted, controlling the center console armrest box to stop moving through the brushed DC motor; after receiving a backward movement signal, controlling the center console armrest box to move backward through the brushed DC motor; when it is detected that the center console armrest box reaches the rear limit position or the backward movement signal is interrupted, controlling the center console armrest box to stop moving through the brushed DC motor.

[0015] Preferably, the control system of the center console armrest box further includes: an H-bridge circuit for driving the brushed DC motor, an amplification circuit connected to the H-bridge circuit, and a Hall sensor disposed inside the brushed DC motor; the amplification circuit amplifies the current from the transistor low side of the H-bridge circuit to the ground terminal to obtain an amplified current; the Hall sensor generates Hall pulses based on the rotation of the coil in the brushed DC motor; the method further includes: collecting the amplified current and the number of Hall pulses per unit time; when it is determined that the amplified current is greater than a pre-configured current threshold and the number of Hall pulses is less than a pre-configured pulse number threshold, controlling the center console armrest box to stop moving to implement an anti-pinch function.

[0016] To achieve the above object, according to another aspect of the present invention, an electronic device is provided.

[0017] An electronic device of the present invention includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein, the memory stores instructions executable by the one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the control method of the center console armrest box provided by the present invention.

[0018] To achieve the above object, according to another aspect of the present invention, a non-transitory computer-readable storage medium is provided.

[0019] A non-transitory computer-readable storage medium of the present invention stores computer instructions for causing a computer to execute the control method of the center console armrest box provided by the present invention.

[0020] According to the technical solution of the present invention, one embodiment of the above invention has the following advantages or beneficial effects:

[0021] An independent control system is set for the central control armrest box. The system includes: a brushed DC motor; a gearbox connected to the output shaft of the brushed DC motor to perform power transmission and speed regulation; a lead screw respectively connected to the gearbox and the central control armrest box to transmit the power of the brushed DC motor to the central control armrest box; a controller that drives the brushed DC motor according to the control signal issued by the user and then controls the movement of the central control armrest box. Based on the above system, the control effect of the central control armrest box can be improved, making the speed of the central control armrest box more stable during operation, the position more accurate, and the start and stop more gentle, enhancing the user experience.

[0022] The further effects of the above non-conventional optional methods will be described below in combination with specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings are used to better understand the present invention and do not constitute an improper limitation to the present invention. Among them:

[0024] Figure 1 is a schematic diagram of the composition of the central control armrest box control system according to an embodiment of the present invention;

[0025] Figure 2 is a schematic diagram of the main steps of the central control armrest box control method according to an embodiment of the present invention;

[0026] Figure 3 is a schematic diagram of the hardware structure of an electronic device for implementing the central control armrest box control method according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following makes an illustration of the exemplary embodiments of the present invention in combination with the drawings, including various details of the embodiments of the present invention to facilitate understanding, and they should be considered merely exemplary. Therefore, those of ordinary skill in the art should recognize that various changes and modifications can be made to the embodiments described here without departing from the scope and spirit of the present invention. Similarly, for the sake of clarity and conciseness, the description of well-known functions and structures is omitted below.

[0028] Figure 1 is a schematic diagram of the composition of the central control armrest box control system according to an embodiment of the present invention, see Figure 1 .

[0029] The central console armrest box in the present invention is located inside the vehicle; the control system of the central console armrest box includes: a brushed DC motor; a gearbox connected to the output shaft of the brushed DC motor to perform power transmission and speed regulation; a lead screw connected to the gearbox and the central console armrest box respectively to transmit the power of the brushed DC motor to the central console armrest box; a controller that drives the brushed DC motor according to a control signal issued by the user and thus controls the movement of the central console armrest box. The controller can be implemented by a known CPU, FPGA, MCU, etc.

[0030] In an embodiment of the present invention, the control signal includes: a forward movement signal and a backward movement signal; after receiving the forward movement signal, the controller controls the central console armrest box to move forward through the brushed DC motor; when the controller detects that the central console armrest box reaches the forward limit position or the forward movement signal is interrupted, it controls the central console armrest box to stop moving through the brushed DC motor; after receiving the backward movement signal, the controller controls the central console armrest box to move backward through the brushed DC motor; when the controller detects that the central console armrest box reaches the backward limit position or the backward movement signal is interrupted, it controls the central console armrest box to stop moving through the brushed DC motor.

[0031] In one embodiment, the control signal further includes: an opening degree adjustment signal; after receiving the opening degree adjustment signal, the controller controls the opening degree of the central console armrest box to perform stepless position adjustment between zero and 100%.

[0032] Preferably, the control system of the central console armrest box further includes: a positioning module located on the central console armrest box; the positioning module collects the position of the central console armrest box inside the vehicle in real time and reports it to the controller.

[0033] As a preferred solution, the control signal further includes: a continue movement signal and a stop movement signal; when the controller detects through the positioning module that the central console armrest box moves to one of two pre-configured anti-touch positions, it controls the central console armrest box to stop moving and sends an anti-touch prompt to the vehicle's in-vehicle system; after sending the anti-touch prompt, in response to receiving the continue movement signal, the controller controls the central console armrest box to continue moving until it reaches the target position indicated by the continue movement signal; in response to receiving the stop movement signal, the controller controls the central console armrest box to stop moving.

[0034] In some embodiments, the control system of the central console armrest box further includes a storage module; the controller receives a custom position save signal issued by the user, and at least one piece of position information defined by the user is carried in the custom position save signal; the controller saves the position information to the storage module.

[0035] In particular, the embodiments of the present invention can implement the anti-pinch function for the user's hand, head, etc. through the following design. The central control armrest box control system further includes: an H-bridge circuit for driving the brushed DC motor, an amplifier circuit connected to the H-bridge circuit, and a Hall sensor disposed inside the brushed DC motor; the amplifier circuit amplifies the current from the low side of the transistor of the H-bridge circuit to the ground terminal to obtain an amplified current; the Hall sensor generates Hall pulses based on the rotation of the coil in the brushed DC motor; the controller collects the amplified current and the number of Hall pulses per unit time; when it is determined that the amplified current is greater than a pre-configured current threshold and the number of Hall pulses is less than a pre-configured pulse number threshold, the central control armrest box is controlled to stop moving to implement the anti-pinch function.

[0036] In practical applications, the controller controls the movement of the central control armrest box by adjusting the speed through the PID speed loop and position loop.

[0037] The following describes an embodiment of the present invention.

[0038] The control logic of the central control armrest box is as follows. The central control armrest box control system includes: a brushed DC motor, a gearbox, a lead screw, and a controller. There is a Hall sensor inside the motor, and a Hall pulse is generated for each revolution, and the control accuracy can reach 7 mm. The controller can make the speed of the central control armrest box more stable, the position more accurate, and the start and stop more gentle by adjusting the speed through the PID speed loop and position loop, so that the user experience will be better. The execution logic of the controller is as follows.

[0039] ① After receiving the signal for the rear row panel to move the middle island backward for adjustment (i.e., the backward movement signal), the central control box will perform the backward movement action until it runs to the 100% position or the user releases the pressed signal, and the central control box will stop running.

[0040] ② After receiving the signal for the rear row panel to move the middle island forward for adjustment (i.e., the forward movement signal), the central control box will perform the forward movement action until it runs to the 0% position or the pressed signal is released, and the central control box will stop running.

[0041] ③ When receiving the request signal for controlling the opening degree of the moving middle island, the central control box can perform stepless position adjustment from 0 to 100% (with an accuracy of 7 MM).

[0042] ④ As long as the central control armrest box is in the powered-on state, it will continuously and real-time feedback the current position of the central control armrest box through the positioning module.

[0043] ⑤ When the center console armrest runs to two anti-touch positions, the controller will feedback an anti-touch prompt to the vehicle head unit and stop running. If the controller receives a signal to confirm continued operation (i.e., a continue movement signal), then the center console will still continue to run to the target position. If the controller receives a signal to stop running (i.e., a stop movement signal), then the center console will stop running.

[0044] ⑥ The center console armrest has a position memory storage function, and users can save frequently used positions according to their own needs. When the controller receives a position save signal, the controller will save the current position of the center console. A total of two positions can be customarily saved.

[0045] ⑦ To prevent pinching the user's body (hands, head, etc.), the center console armrest is equipped with an anti-pinch function. The realization of the controller's anti-pinch function is mainly based on the current magnitude from the low side of the H-bridge NMOSFET to GND (ground terminal), supplemented by the number of motor Hall pulses. Since the current magnitude from the low side of the H-bridge NMOSFET to GND is extremely small, this end current is amplified by a certain multiple and collected in the hardware circuit. When there is an obstacle blocking the operation of the center console armrest, the current magnitude from the low side of the H-bridge NMOSFET to GND will increase significantly and the number of motor Hall pulses will decrease. Triggering the anti-pinch with two judgment conditions can reduce the risk of anti-pinch failure. The magnitude of the anti-pinch force can be adjusted by setting current thresholds and pulse number thresholds.

[0046] Figure 2 is a schematic diagram of the main steps of the control method for the center console armrest in an embodiment of the present invention. Refer to Figure 2 .

[0047] The control method for the center console armrest is executed based on the aforementioned center console armrest control system. The center console armrest control system includes: a brushed DC motor; a gearbox connected to the output shaft of the brushed DC motor to perform power transmission and speed regulation; a lead screw respectively connected to the gearbox and the center console armrest to transmit the power of the brushed DC motor to the center console armrest; and a controller that drives the brushed DC motor according to a control signal issued by the user to control the movement of the center console armrest.

[0048] The control method of the center console armrest box is executed by a controller, and includes the following steps: Step S201: After receiving a forward movement signal, control the center console armrest box to move forward through the brushed DC motor; when it is detected that the center console armrest box reaches the forward limit position or the forward movement signal is interrupted, control the center console armrest box to stop moving through the brushed DC motor; Step S202: After receiving a backward movement signal, control the center console armrest box to move backward through the brushed DC motor; when it is detected that the center console armrest box reaches the backward limit position or the backward movement signal is interrupted, control the center console armrest box to stop moving through the brushed DC motor.

[0049] In one embodiment, the control system of the center console armrest box further includes: a positioning module located in the center console armrest box; the method further includes: the controller receives the position of the center console armrest box in the vehicle collected by the positioning module in real time.

[0050] As a preferred solution, the control signal further includes: a continue movement signal and a stop movement signal; the method further includes: when the controller detects through the positioning module that the center console armrest box moves to one of two pre-configured anti-touch positions, control the center console armrest box to stop moving, and send an anti-touch prompt to the vehicle's on-board system; after sending the anti-touch prompt, in response to receiving the continue movement signal, the controller controls the center console armrest box to continue moving until it reaches the target position indicated by the continue movement signal; in response to receiving the stop movement signal, the controller controls the center console armrest box to stop moving.

[0051] Preferably, the control system of the center console armrest box further includes a storage module; the method further includes: the controller receives a custom position saving signal issued by the user, and at least one piece of position information defined by the user is carried in the custom position saving signal; the controller saves the position information to the storage module.

[0052] In one embodiment, the method further includes: the controller controls the movement of the center console armrest box by adjusting the speed through a PID speed loop and a position loop.

[0053] In an embodiment of the present invention, the central control armrest box control system further includes: an H-bridge circuit for driving the brushed DC motor, an amplifier circuit connected to the H-bridge circuit, and a Hall sensor disposed inside the brushed DC motor; the amplifier circuit amplifies the current from the low side of the transistor of the H-bridge circuit to the ground terminal to obtain an amplified current; the Hall sensor generates Hall pulses based on the rotation of the coil in the brushed DC motor; the method further includes: collecting the amplified current and the number of Hall pulses per unit time; when it is determined that the amplified current is greater than a pre-configured current threshold and the number of Hall pulses is less than a pre-configured pulse number threshold, controlling the central control armrest box to stop moving to implement an anti-pinch function.

[0054] In the technical solution of the present invention, an independent control system is provided for the central control armrest box. The system includes: a brushed DC motor; a gearbox connected to the output shaft of the brushed DC motor to perform power transmission and speed regulation; a lead screw respectively connected to the gearbox and the central control armrest box to transmit the power of the brushed DC motor to the central control armrest box; a controller that drives the brushed DC motor according to a control signal issued by a user and thus controls the movement of the central control armrest box. Based on the above system, the control effect of the central control armrest box can be improved, so that the central control armrest box runs at a more stable speed, is more accurate in position, and is smoother when starting and stopping, enhancing the user experience.

[0055] It should be noted that in the technical solution of the present invention, in terms of the collection, analysis, use, transmission, storage, etc. of user personal information, it complies with the provisions of relevant laws and regulations, is used for legal and reasonable purposes, is not shared, leaked or sold outside these legal uses, etc., and is subject to the supervision and management of regulatory authorities. Necessary measures should be taken for user personal information to prevent illegal access to such personal information data, ensure that personnel with the right to access personal information data comply with the provisions of relevant laws and regulations, and ensure the security of user personal information. Once these user personal information data are no longer needed, the risk should be minimized by restricting or even prohibiting data collection and / or deleting the data. When in use, including in some related application programs, user privacy is protected by de-identifying the data. For example, when in use, specific identifiers (such as date of birth) are removed, the amount or specificity of the stored data is controlled (such as collecting location data at the city level instead of at the specific address level), how the data is stored is controlled, and / or other methods are used to de-identify.

[0056] According to an embodiment of the present invention, the present invention also provides an electronic device and a readable storage medium.

[0057] The electronic device of the present invention includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein, the memory stores instructions executable by the one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the central control armrest box control method provided by the present invention.

[0058] The non-transitory computer-readable storage medium of the present invention stores computer instructions for causing the computer to execute the central control armrest box control method provided by the present invention.

[0059] As Figure 3 shown, it is a schematic hardware structure diagram of an electronic device for implementing the method of the embodiment of the present invention. As Figure 3 , the electronic device includes: one or more processors 31 and a memory 32, Figure 3 Taking one processor 31 as an example. Among them, the memory 32 is the non-transitory computer-readable storage medium provided by the present invention.

[0060] The electronic device of the present invention may further include: an input device 33 and an output device 34.

[0061] The processor 31, the memory 32, the input device 33, and the output device 34 may be connected by a bus or other means, Figure 3 Taking connection by bus as an example.

[0062] As a non-transitory computer-readable storage medium, the memory 32 can be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as the program instructions / modules corresponding to the method in the embodiment of the present invention. The processor 31 executes various functional applications and data processing of the server by running the non-transitory software programs, instructions, and modules stored in the memory 32, that is, implements the central control armrest box control method of the above method embodiment.

[0063] The memory 32 may include a program storage area and a data storage area. Among them, the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created according to the use of the device. In addition, the memory 32 may include a high-speed random access memory, and may also include a non-transitory memory, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state storage devices. In some embodiments, the memory 32 may optionally include a memory remotely provided relative to the processor 31, and these remote memories may be connected to the device through a network. Examples of the above network include but are not limited to the Internet, an enterprise intranet, a local area network, a mobile communication network, and combinations thereof.

[0064] The input device 33 can receive input numerical or character information and generate key signal inputs related to the user settings and function control of the device. The output device 33 can include a display device such as a display screen.

[0065] One or more of the above modules are stored in the memory 32, and when executed by the one or more processors 31, execute the central control console box control method of any of the above method embodiments.

[0066] The above product can execute the central control console box control method provided by the embodiments of the present invention, and has the corresponding functional modules and beneficial effects of the execution method. For technical details not described in detail in this embodiment, reference can be made to the central control console box control method provided by the embodiments of the present invention.

[0067] The above specific embodiments do not constitute a limitation on the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can occur depending on design requirements and other factors. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A central control armrest box control system, the central control armrest box being located inside a vehicle; characterized in that, The central control armrest box control system includes: A brushed DC motor; A gearbox connected to the output shaft of the brushed DC motor to perform power transmission and speed regulation; A lead screw respectively connected to the gearbox and the central control armrest box to transmit the power of the brushed DC motor to the central control armrest box; A controller that drives the brushed DC motor according to a control signal issued by a user and thus controls the movement of the central control armrest box.

2. The central control armrest box control system according to claim 1, characterized in that The control signal includes: a forward movement signal and a backward movement signal; After receiving the forward movement signal, the controller controls the central control armrest box to move forward through the brushed DC motor; when the controller detects that the central control armrest box reaches the forward limit position or the forward movement signal is interrupted, it controls the central control armrest box to stop moving through the brushed DC motor; After receiving the backward movement signal, the controller controls the central control armrest box to move backward through the brushed DC motor; when the controller detects that the central control armrest box reaches the rear limit position or the backward movement signal is interrupted, it controls the central control armrest box to stop moving through the brushed DC motor.

3. The center console armrest control system according to claim 1, characterized in that, The control signal further includes: an opening degree adjustment signal; After receiving the opening degree adjustment signal, the controller controls the opening degree of the central control armrest box to perform stepless position adjustment between zero and 100%.

4. The center console armrest box control system according to claim 1, wherein, The central control armrest box control system further includes: a positioning module located in the central control armrest box; The positioning module real-time collects the position of the central control armrest box in the vehicle and reports it to the controller.

5. The center console armrest control system according to claim 4, wherein The control signal further includes: a continue movement signal and a stop movement signal; When the controller detects through the positioning module that the central control armrest box moves to one of two pre-configured anti-touch positions, it controls the central control armrest box to stop moving and issues an anti-touch prompt to the vehicle's in-vehicle system; After issuing the anti-touch prompt, in response to receiving the continue movement signal, the controller controls the central control armrest box to continue moving until it reaches the target position indicated by the continue movement signal; in response to receiving the stop movement signal, the controller controls the central control armrest box to stop moving.

6. The center console armrest control system according to claim 1, wherein, The central control armrest box control system further includes a storage module; The controller receives a custom position saving signal issued by the user, and at least one piece of position information defined by the user is carried in the custom position saving signal; The controller saves the position information to the storage module.

7. The center console armrest box control system according to claim 1, wherein, The central control armrest box control system further includes: an H-bridge circuit for driving the brushed DC motor, an amplifier circuit connected to the H-bridge circuit, and a Hall sensor provided inside the brushed DC motor; The amplifier circuit amplifies the current from the transistor low side of the H-bridge circuit to the ground terminal to obtain an amplified current; the Hall sensor generates Hall pulses based on the rotation of the coil in the brushed DC motor; The controller collects the amplified current and the number of Hall pulses within a unit time; when it is determined that the amplified current is greater than a pre-configured current threshold and the number of Hall pulses is less than a pre-configured pulse number threshold, the controller controls the center console armrest box to stop moving to implement the anti-pinch function.

8. The central control armrest box control system according to claim 1, characterized in that, The controller controls the movement of the center console armrest box by adjusting the speed through the PID speed loop and position loop.

9. A control method for a central control armrest box of the central control armrest box control system according to claim 1, characterized in that, It is executed by the controller; the method for controlling the center console armrest box includes: After receiving the forward movement signal, the center console armrest box is controlled to move forward by the brushed DC motor; when it is detected that the center console armrest box reaches the forward limit position or the forward movement signal is interrupted, the center console armrest box is controlled to stop moving by the brushed DC motor; After receiving the backward movement signal, the center console armrest box is controlled to move backward by the brushed DC motor; when it is detected that the center console armrest box reaches the backward limit position or the backward movement signal is interrupted, the center console armrest box is controlled to stop moving by the brushed DC motor.

10. The center console armrest control method according to claim 9, characterized in that, The center console armrest box control system further includes: an H-bridge circuit for driving the brushed DC motor, an amplifier circuit connected to the H-bridge circuit, and a Hall sensor disposed inside the brushed DC motor; the amplifier circuit amplifies the current from the low side of the transistor of the H-bridge circuit to the ground terminal to obtain an amplified current; the Hall sensor generates Hall pulses based on the rotation of the coil inside the brushed DC motor; The method further includes: collecting the amplified current and the number of Hall pulses within a unit time; when it is determined that the amplified current is greater than a pre-configured current threshold and the number of Hall pulses is less than a pre-configured pulse number threshold, the center console armrest box is controlled to stop moving to implement the anti-pinch function.

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