A suspended multimedia display screen for an instrument panel and a control method thereof

Abstract

The present invention discloses a suspended multimedia display screen for an instrument panel and a control method thereof, and relates to the field of automobile manufacturing. The suspended multimedia display screen for an instrument panel comprises a display assembly, a support assembly and a suspension assembly, wherein the display assembly comprises a display screen; the support assembly comprises a bracket, and a telescopic control mechanism for controlling the front end of the bracket to extend into the rear of the display screen in a telescopic manner to fix the display screen; the suspension assembly comprises an energized coil for generating magnetic force and then holding up the display screen in a magnetic manner, and the energized coil is located below the display screen and is spaced apart from the display screen. The present invention can realize the suspension of the display screen in a real sense, effectively improve the technological sense and quality sense of the entire vehicle cabin, and enhance the competitiveness of the product.

Description

Technical Field

[0001] The invention relates to the field of automobile manufacturing, and in particular to a suspended multimedia display screen of a dashboard and a control method thereof. Background Art

[0002] The car dashboard is a device that reflects the working status of various systems of the vehicle, generally including the speedometer, tachometer, oil pressure gauge, water temperature gauge, fuel gauge, charging gauge, etc. At the same time, various indicator lights or warning lights are also set under the mask of the car dashboard, such as the coolant level warning light, fuel level indicator light, washer level indicator light, charging indicator light, high and low beam change indicator light, transmission gear indicator light, anti-lock braking system indicator light, driving force control indicator light, airbag warning light, etc.

[0003] In order to improve the diversity of car interiors, some car manufacturers currently set the car dashboard as a floating display screen, hiding the bracket behind the display screen so that the display screen has a floating appearance when viewed from the front. However, this floating setting method still uses a physical bracket to connect the dashboard display screen, and cannot achieve a true floating effect. Summary of the invention

[0004] In view of the defects existing in the prior art, the purpose of the present invention is to provide a dashboard floating multimedia display screen and a control method thereof, which can realize the real suspension of the display screen, effectively improve the technological sense and quality of the vehicle cabin, and enhance the competitiveness of the product.

[0005] In order to achieve the above objectives, the present invention provides a dashboard suspended multimedia display screen, comprising:

[0006] A display component, the display component comprising a display screen;

[0007] A support assembly, the support assembly comprising a support, and a telescopic control mechanism for controlling the front end of the support to extend into the rear of the display screen in a telescopic manner to fix the display screen;

[0008] The suspension component includes a power-on coil for generating magnetic force and then lifting the display screen in a magnetic way. The power-on coil is located below the display screen and is spaced apart from the display screen.

[0009] On the basis of the above technical solution, a groove corresponding to the front end of the bracket is provided at the rear end of the display screen, and a magnet is provided below the display screen.

[0010] On the basis of the above technical solution, the telescopic control mechanism is sleeved on the rear end of the bracket to control the telescopic movement of the front end of the bracket.

[0011] On the basis of the above technical solution, a bracket position sensor for detecting the position of the bracket is provided next to the bracket.

[0012] On the basis of the above technical solution, a Hall sensor for detecting the magnetic field and the power-on state of the energized coil is provided on one side of the energized coil.

[0013] Based on the above technical solutions,

[0014] The instrument panel suspended multimedia display screen further comprises a battery, and the battery is connected to both the telescopic control mechanism and the energized coil;

[0015] The battery is provided with a battery power sensor for detecting the power level of the battery.

[0016] The present invention provides a control method for a suspended multimedia display screen on an instrument panel, which is used to control the suspended multimedia display screen on the instrument panel described above, and specifically comprises the following steps:

[0017] Get the vehicle's power status, and based on the obtained vehicle power status:

[0018] When the vehicle is powered on, the telescopic control mechanism controls the front end of the bracket to extend into the rear of the display screen, and then the power coil is powered off;

[0019] When the power-on state of the vehicle is changed from the power-off state to the power-on state, the power-on coil is energized, and then the telescopic control mechanism controls the front end of the bracket to retract from the rear of the display screen.

[0020] On the basis of the above technical solution, the vehicle power-on state is converted from the power-on state to the power-off state:

[0021] Based on the detection of the bracket position by a bracket position sensor arranged next to the bracket, the energized coil is de-energized when and only when the bracket position sensor detects that the front end of the bracket has extended into the rear part of the display screen.

[0022] On the basis of the above technical solution, the vehicle power-on state is converted from the power-off state to the power-on state:

[0023] Based on the detection of the battery power by the battery power sensor arranged on the battery connected to the energized coil, if the battery power is lower than the rated value, the telescopic control mechanism always keeps the front end of the bracket in the state of extending into the rear of the display screen;

[0024] Based on the detection of the magnetic field and power-on state of the energized coil by the Hall sensor arranged next to the energized coil, if the magnetic field is abnormal or the power-on state is abnormal, the telescopic control mechanism always keeps the front end of the bracket in a state of extending into the rear of the display screen.

[0025] Based on the above technical solutions,

[0026] When the vehicle is powered on, and the telescopic control mechanism has controlled the front end of the bracket to retract from the rear of the display screen, based on the real-time detection of the battery power by the battery power sensor arranged on the battery connected to the power-on coil, and the real-time detection of the magnetic field and the power-on state of the power-on coil by the Hall sensor arranged next to the power-on coil, if the battery power is lower than the rated value, the magnetic field is abnormal, or the power-on state is abnormal, the telescopic control mechanism controls the front end of the bracket to extend into the rear of the display screen;

[0027] When the vehicle is in a power-off state, the telescopic control mechanism always keeps the front end of the bracket in a state of extending into the rear of the display screen.

[0028] Compared with the prior art, the advantages of the present invention are: through the arrangement of a support assembly and a suspension assembly, the bracket in the support assembly is used to extend into the rear of the display screen to fix the display screen when the vehicle is in a power-off state, and the energized coil in the suspension assembly is arranged under the display screen to magnetically support the display screen when the vehicle is in a power-on state, and the bracket retracts from the rear of the display screen when the vehicle is in a power-on state, thereby realizing the real suspension of the display screen, effectively improving the technological sense and quality of the entire vehicle cabin, and enhancing product competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. 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 creative work.

[0030] Figure 1 This is a schematic diagram of the structure of a suspended multimedia display screen on a dashboard according to an embodiment of the present invention;

[0031] Figure 2 is a schematic diagram of the rear part of a display screen in an embodiment of the present invention;

[0032] Figure 3 The present invention is a flowchart of a control method of a suspended multimedia display screen on an instrument panel according to an embodiment of the present invention.

[0033] In the figure: 1-display screen, 2-bracket, 3-telescopic control mechanism, 4-power-on coil, 5-bracket position sensor, 6-Hall sensor, 7-battery, 8-battery power sensor, 9-groove. DETAILED DESCRIPTION

[0034] The embodiment of the present invention provides a dashboard suspended multimedia display screen. Through the arrangement of a support component and a suspension component, the bracket 2 in the support component is used to extend into the rear of the display screen 1 to fix the display screen 1 when the vehicle is in a power-off state. The energized coil 4 in the suspension component is arranged below the display screen 1 to magnetically support the display screen 1 when the vehicle is in a power-on state. When the vehicle is in a power-on state, the bracket 2 is retracted from the rear of the display screen 1, thereby achieving the real suspension of the display screen 1, effectively improving the technological sense and quality of the entire vehicle cabin, and enhancing the product competitiveness. The embodiment of the present invention also provides a control method for a dashboard suspended multimedia display screen accordingly.

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0036] See also Figure 1 As shown, an embodiment of the present invention provides a suspended multimedia display screen for a dashboard, comprising a display component, a support component and a suspension component.

[0037] In the embodiment of the present invention, the display assembly includes a display screen 1, see Figure 2 As shown, a groove 9 is provided at the rear of the display screen 1, and the groove 9 is provided to fix the display screen 1 when the vehicle is in a power-off state.

[0038] In the embodiment of the present invention, the support assembly includes a bracket 2, and a telescopic control mechanism 3 for controlling the front end of the bracket 2 to extend into the rear of the display screen 1 in a telescopic manner to fix the display screen 1. The telescopic control mechanism 3 is sleeved on the rear end of the bracket 2 to control the telescopic movement of the front end of the bracket 2. The groove 9 provided at the rear end of the display screen 1 corresponds to the front end of the bracket 2.

[0039] The extension and retraction of the bracket 2 is achieved through the extension and retraction control mechanism 3, such as the front and rear extension and retraction movement of the bracket 2. When the extension and retraction control mechanism 3 controls the bracket 2 to move forward, the front end of the bracket 2 extends into the groove 9 at the rear of the display screen 1 to fix the display screen 1; when the extension and retraction control mechanism 3 controls the bracket 2 to move backward, the front end of the bracket 2 retracts from the groove 9 at the rear of the display screen 1.

[0040] In the embodiment of the present invention, the suspension component includes a power-on coil 4 for generating magnetic force and then lifting the display screen 1 in a magnetic manner. The power-on coil 4 is located below the display screen 1 and is spaced apart from the display screen 1. That is, when the power-on coil 4 is energized, it generates a magnetic field, and the display screen 1 is magnetic, and then the power-on coil 4 lifts the display screen 1 in a magnetic manner, so that the display screen 1 is in a suspended state and is not directly connected to other components on the vehicle, thereby achieving a suspension effect of the display screen 1.

[0041] It should be noted that when the display screen 1 is in a suspended state and the front end of the bracket 2 has been moved out of the groove 9 at the rear of the display screen 1, in order to prevent the display screen 1 in a suspended state from being shaken or thrown out significantly due to a collision with a vehicle, a limiting device can be set at the front, back, left, right and top of the display screen 1; when the display screen 1 is in a suspended state, the limiting device does not contact the display screen 1 and maintains a certain distance from the display screen 1, so that even if the display screen 1 shakes, it is still within a safe range.

[0042] Furthermore, a bracket position sensor 5 for detecting the position of the bracket 2 is provided next to the bracket 2. The position of the bracket 2 can be detected by setting the bracket position sensor 5, such as when the front end of the bracket 2 is in the groove 9 at the rear of the display screen 1 or the front end of the bracket 2 has been moved out of the groove 9 at the rear of the display screen 1.

[0043] Furthermore, a Hall sensor 6 for detecting the magnetic field and the power-on state of the energized coil 4 is provided on one side of the energized coil 4. When the energization of the energized coil 4 is abnormal or the magnetic field is abnormal, the magnetic field of the energized coil 4 will change and then be detected by the Hall sensor 6. Therefore, by providing the Hall sensor 6, the magnetic field and the power-on state of the energized coil 4 can be detected.

[0044] Furthermore, the dashboard suspended multimedia display screen also includes a battery 7, which is connected to both the telescopic control mechanism 3 and the energized coil 4; a battery power sensor 8 for detecting the power level of the battery 7 is provided on the battery 7.

[0045] The battery 7 provides electric energy to the energized coil 4 and the telescopic control mechanism 3 , so that the energized coil 4 can generate a magnetic field to hold up the display screen 1 , and the telescopic control mechanism 3 can control the forward and backward movement of the bracket 2 .

[0046] By setting the battery power sensor 8, when the battery 7 is at a low power level, the energized coil 4 is no longer powered, that is, when the battery 7 is at a low power level, the display screen 1 is not suspended.

[0047] It should be noted that the power supply control of the battery 7 to the energized coil 4 is not affected by the power-on state of the entire vehicle and is independent of the control of the power-on state of the entire vehicle. For example, when the vehicle is in the power-on state, the energized coil 4 is not necessarily in the energized state.

[0048] See also Figure 3 , which is a schematic plan view of the suspended multimedia display screen of the instrument panel of the present invention. The power coil 4 is located above the lower structure of the instrument panel, and a magnet is provided below the display screen 1. When the power coil 4 is energized to generate a magnetic field, the magnet of the display screen 1 is in the magnetic field. Under the action of the magnetic force, the display screen 1 and the power coil 4 repel each other, and the display screen 1 is in a suspended state and is not directly connected to other components on the vehicle, thereby achieving a suspended effect of the display screen 1.

[0049] The dashboard suspended multimedia display screen of the embodiment of the present invention is configured with a support component and a suspension component. The bracket 2 in the support component is used to extend into the rear of the display screen 1 to fix the display screen 1 when the vehicle is in a power-off state. The energized coil 4 in the suspension component is arranged under the display screen 1 to magnetically support the display screen 1 when the vehicle is in a power-on state. When the vehicle is in a power-on state, the bracket 2 retracts from the rear of the display screen 1, thereby realizing the real suspension of the display screen 1, effectively improving the sense of technology and quality of the entire vehicle cabin, and enhancing the product competitiveness.

[0050] See also Figure 3 As shown, a control method of a suspended multimedia display screen on a dashboard provided by an embodiment of the present invention is used to control the suspended multimedia display screen on the dashboard described above. The control method specifically includes the following steps:

[0051] S1: Acquire the power state of the vehicle, and based on the acquired power state of the vehicle, when the power state of the vehicle changes from the power-on state to the power-off state, go to S2, and when the power state of the vehicle changes from the power-off state to the power-on state, go to S3;

[0052] S2: the telescopic control mechanism 3 controls the front end of the bracket 2 to extend into the rear of the display screen 1, and then the energized coil 4 is de-energized; that is, the telescopic control mechanism 3 controls the front end of the bracket 2 to extend into the groove 9 at the rear of the display screen 1 and dock with the rear of the display screen 1 to ensure that the display screen 1 is firmly fixed, and then the energized coil 4 is de-energized.

[0053] S3: The power coil 4 is energized, and then the telescopic control mechanism 3 controls the front end of the bracket 2 to retract from the rear of the display screen 1. That is, when the power coil 4 is energized to generate a magnetic field that can hold up the display screen 1, the telescopic control mechanism 3 controls the front end of the bracket 2 to retract from the rear of the display screen 1 and retract it into the instrument panel, and the display screen 1 is suspended by magnetic force.

[0054] In the embodiment of the present invention, when the vehicle power-on state is converted from the power-on state to the power-off state:

[0055] Based on the detection of the position of the bracket 2 by the bracket position sensor 5 arranged next to the bracket 2, the energized coil 4 is de-energized when and only when the bracket position sensor 5 detects that the front end of the bracket 2 has extended into the rear part of the display screen 1.

[0056] That is, when the vehicle's power-on state switches from a power-on state to a power-off state, the bracket position sensor 5 monitors the position of the bracket 2 in real time. When and only when the front end of the bracket 2 has extended into the rear part of the display screen 1 to fix the display screen 1, the power-on coil 4 will be de-energized to prevent the power-on coil 4 from being de-energized in advance and causing the display screen 1 in a suspended state to fall.

[0057] In the embodiment of the present invention, when the vehicle power-on state is converted from the power-off state to the power-on state:

[0058] Based on the detection of the power of the battery 7 by the battery power sensor 8 arranged on the battery 7 connected to the energized coil 4, if the power of the battery 7 is lower than the rated value, the telescopic control mechanism 3 always keeps the front end of the bracket 2 in the state of extending into the rear of the display screen 1;

[0059] Based on the detection of the magnetic field and power-on state of the energized coil 4 by the Hall sensor 6 arranged next to the energized coil 4, if the magnetic field is abnormal or the power-on state is abnormal, the telescopic control mechanism 3 always keeps the front end of the bracket 2 in a state of extending into the rear of the display screen 1.

[0060] That is, when the power-on state of the vehicle is switched from the power-off state to the power-on state, the power level of the battery 7 is detected by the battery power sensor 8, and the magnetic field and the power-on state of the power-on coil 4 are detected by the Hall sensor 6. When and only when the power level of the battery 7 is not lower than the rated value, the magnetic field of the power-on coil 4 is normal, and the power-on state of the power-on coil 4 is normal, the power-on coil 4 is energized, and then the telescopic control mechanism 3 controls the front end of the bracket 2 to retract from the rear of the display screen 1. Otherwise, the telescopic control mechanism 3 always keeps the front end of the bracket 2 in a state of extending into the rear of the display screen 1 to prevent the display screen 1 from falling off due to the inability of the magnetic field to normally support the display screen 1.

[0061] It should be noted that when the vehicle is powered on and the telescopic control mechanism 3 has controlled the front end of the bracket 2 to retract from the rear of the display screen 1, based on the real-time detection of the battery power of the battery 7 by the battery power sensor 8 arranged on the battery 7 connected to the energized coil 4, and the real-time detection of the magnetic field and the power-on state of the energized coil 4 by the Hall sensor 6 arranged next to the energized coil 4, if the battery power of the battery 7 is lower than the rated value, the magnetic field is abnormal or the power-on state is abnormal, the telescopic control mechanism 3 controls the front end of the bracket 2 to extend into the rear of the display screen 1; when the vehicle is powered off, the telescopic control mechanism 3 always keeps the front end of the bracket 2 in a state of extending into the rear of the display screen 1.

[0062] Furthermore, the magnetic field of the energized coil 4 is detected in real time by the Hall sensor 6, and adjustment information is fed back to achieve dynamic adjustment of the current intensity of the energized coil 4, ensuring that the energized coil 4 generates a stable magnetic field and ensuring that the display screen 1 will not float up and down or fall under any working conditions.

[0063] In a possible implementation, an embodiment of the present invention further provides a readable storage medium, the readable storage medium is located in a PLC (Programmable Logic Controller) controller, and a computer program is stored on the readable storage medium. When the program is executed by a processor, the following steps of the control method of the instrument panel floating multimedia display screen are implemented:

[0064] Get the vehicle's power status, and based on the obtained vehicle power status:

[0065] When the vehicle is powered on, the telescopic control mechanism 3 controls the front end of the bracket 2 to extend into the rear of the display screen 1, and then the power coil 4 is powered off;

[0066] When the vehicle power-on state is changed from the power-off state to the power-on state, the power-on coil 4 is energized, and then the telescopic control mechanism 3 controls the front end of the bracket 2 to retract from the rear of the display screen 1 .

[0067] In the embodiment of the present invention, when the vehicle power-on state is converted from the power-on state to the power-off state:

[0068] Based on the detection of the position of the bracket 2 by the bracket position sensor 5 arranged next to the bracket 2, the energized coil 4 is de-energized when and only when the bracket position sensor 5 detects that the front end of the bracket 2 has extended into the rear part of the display screen 1.

[0069] In the embodiment of the present invention, when the vehicle power-on state is converted from the power-off state to the power-on state:

[0070] Based on the detection of the power of the battery 7 by the battery power sensor 8 arranged on the battery 7 connected to the energized coil 4, if the power of the battery 7 is lower than the rated value, the telescopic control mechanism 3 always keeps the front end of the bracket 2 in the state of extending into the rear of the display screen 1;

[0071] Based on the detection of the magnetic field and power-on state of the energized coil 4 by the Hall sensor 6 arranged next to the energized coil 4, if the magnetic field is abnormal or the power-on state is abnormal, the telescopic control mechanism 3 always keeps the front end of the bracket 2 in a state of extending into the rear of the display screen 1.

[0072] In the embodiment of the present invention, when the vehicle is powered on and the telescopic control mechanism 3 has controlled the front end of the bracket 2 to retract from the rear of the display screen 1, based on the real-time detection of the power of the battery 7 by the battery power sensor 8 provided on the battery 7 connected to the power coil 4 and the real-time detection of the magnetic field and the power-on state of the power coil 4 by the Hall sensor 6 provided next to the power coil 4, if the power of the battery 7 is lower than the rated value, the magnetic field is abnormal, or the power-on state is abnormal, the telescopic control mechanism 3 controls the front end of the bracket 2 to extend into the rear of the display screen 1;

[0073] When the vehicle is in a power-off state, the telescopic control mechanism 3 always keeps the front end of the bracket 2 in a state of extending into the rear of the display screen 1 .

[0074] The storage medium may adopt any combination of one or more computer-readable media. The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium may be, for example, but not limited to: an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples (non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this document, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in conjunction with an instruction execution system, device or device.

[0075] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, which carry computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, device, or device. The program code contained on the computer-readable medium may be transmitted using any suitable medium, including but not limited to: wireless, wire, optical cable, RF, etc., or any suitable combination of the above.

[0076] Computer program code for performing the operations of the present invention may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0077] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0078] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0079] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A suspended multimedia display screen on a dashboard, characterized in that: include: A display component, the display component comprising a display screen (1); A support assembly, the support assembly comprising a support (2), and a telescopic control mechanism (3) for controlling the front end of the support (2) to extend into the rear of the display screen (1) in a telescopic manner to fix the display screen (1); A suspension component, the suspension component comprising a power-on coil (4) for generating magnetic force and thereby magnetically lifting the display screen (1), the power-on coil (4) being located below the display screen (1) and spaced apart from the display screen (1); The telescopic control mechanism (3) is sleeved on the rear end of the bracket (2) to control the telescopic movement of the front end of the bracket (2); A bracket position sensor (5) for detecting the position of the bracket (2) is provided next to the bracket (2); a Hall sensor (6) for detecting the magnetic field and power-on state of the power-on coil (4) is provided on one side of the power-on coil (4); The bracket (2) is used to extend into the rear of the display screen (1) to fix the display screen (1) when the vehicle switches from a powered-on state to a powered-off state, thereby preventing the display screen (1) from falling when it is in a suspended state when the power-on coil (4) is powered off.

2. The instrument panel suspended multimedia display screen according to claim 1, characterized in that: A groove (9) corresponding to the front end of the bracket (2) is provided at the rear end of the display screen (1), and a magnet is provided below the display screen (1).

3. The instrument panel suspended multimedia display screen according to claim 1, characterized in that: The instrument panel suspended multimedia display screen further comprises a battery (7), wherein the battery (7) is connected to both the telescopic control mechanism (3) and the energized coil (4); The storage battery (7) is provided with a battery power sensor (8) for detecting the power level of the storage battery (7).

4. A control method for a suspended multimedia display screen on a dashboard, used to control the suspended multimedia display screen on a dashboard according to any one of claims 1 to 3, characterized in that: The specific steps include: Get the vehicle's power status, and based on the obtained vehicle power status: When the vehicle power-on state is changed from a power-on state to a power-off state, the telescopic control mechanism (3) controls the front end of the bracket (2) to extend into the rear of the display screen (1), and then the power-on coil (4) is de-energized; When the power-on state of the vehicle is changed from the power-off state to the power-on state, the power-on coil (4) is energized, and then the telescopic control mechanism (3) controls the front end of the bracket (2) to retract from the rear of the display screen (1).

5. A control method for a suspended multimedia display screen on a dashboard as claimed in claim 4, characterized in that: When the vehicle power-on state changes from the power-on state to the power-off state: Based on the detection of the position of the bracket (2) by a bracket position sensor (5) arranged next to the bracket (2), the energized coil (4) is de-energized when and only when the bracket position sensor (5) detects that the front end of the bracket (2) has extended into the rear of the display screen (1).

6. The control method of a suspended multimedia display screen on a dashboard as claimed in claim 4, characterized in that: When the vehicle power-on state changes from the power-off state to the power-on state: Based on the detection of the power level of the storage battery (7) by a battery power sensor (8) disposed on the storage battery (7) connected to the energized coil (4), if the power level of the storage battery (7) is lower than a rated value, the telescopic control mechanism (3) always keeps the front end of the bracket (2) in a state of extending into the rear of the display screen (1); Based on the detection of the magnetic field and the power-on state of the energized coil (4) by the Hall sensor (6) arranged next to the energized coil (4), if the magnetic field is abnormal or the power-on state is abnormal, the telescopic control mechanism (3) always keeps the front end of the bracket (2) in a state of extending into the rear of the display screen (1).

7. The control method of a suspended multimedia display screen on a dashboard as claimed in claim 4, characterized in that: When the vehicle is powered on and the telescopic control mechanism (3) has controlled the front end of the bracket (2) to retract from the rear of the display screen (1), based on the real-time detection of the power of the battery (7) by a battery power sensor (8) arranged on the battery (7) connected to the power coil (4), and the real-time detection of the magnetic field and power-on state of the power coil (4) by a Hall sensor (6) arranged next to the power coil (4), if the power of the battery (7) is lower than the rated value, the magnetic field is abnormal, or the power-on state is abnormal, the telescopic control mechanism (3) controls the front end of the bracket (2) to extend into the rear of the display screen (1); When the vehicle is in a power-off state, the telescopic control mechanism (3) always keeps the front end of the bracket (2) in a state of extending into the rear of the display screen (1).

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